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Artykuły w czasopismach na temat "Startup failures"
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Bednar, Richard, Natalia Tariskova i Branislav Zagorsek. "Startup Revenue Model Failures". Montenegrin Journal of Economics 14, nr 4 (6.12.2018): 141–57. http://dx.doi.org/10.14254/1800-5845/2018.14-4.10.
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Muramalla, Venkata Sai Srinivasa Rao, i Ateeq Mesfer Al-Hazza. "Entrepreneurial Strategies and Factors Stimulate the Business of Tech Startups". International Journal of Financial Research 10, nr 3 (19.05.2019): 360. http://dx.doi.org/10.5430/ijfr.v10n3p360.
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Enterprising a startup business is depending on personal experiences of investors and their social relationships with all stockholders. Startup entrepreneurs are typically involved in the qualitative evaluations of their business counterparts operating in the market. However, startup entrepreneurs shall look at what caused them to fail in their ventures, they examine the reasons for their failures, and finally, entrepreneurs develop a culture of strategic thinking for getting success in the business. In this context, this paper examined the entrepreneurial strategies of tech startups and deliberated the factors that stimulate the growth of a tech startup business in India. However, initiatives of the government to promote tech startups in India also exposed in this paper.
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Leavy, Brian. "Startups – Tom Eisenmann analyzes the most prevalent failure patterns and how to avoid them". Strategy & Leadership 49, nr 5 (14.10.2021): 31–37. http://dx.doi.org/10.1108/sl-09-2021-0091.
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Purpose The Fail-Safe Startup: Your Roadmap for Entrepreneurial Success, the new book by entrepreneurship researcher Tom Eisenmann, sets out to help improve the odds by looking more closely at the most prevalent causes of startup failure and how to avoid them. Design/methodology/approach Eisenmann research led him to identify six distinct patterns that explain a large proportion of startup failures, three relating to early stage failures and three to late stage. Findings Strong demand from early adopters may lead a founder to scale up prematurely. Practical/implications Entrepreneurs must research differences in the needs of likely early adopters and mainstream customers during the upfront customer discovery phase. Originality/value Entrepreneurs must research differences in the needs of likely early adopters and mainstream customers during the upfront customer discovery phase. 10; 10;The line between visionary entrepreneur and cult leader can become blurry, and a founder?s ?reality distortion field--useful for motivating others to help pursue the founder?s dream?can become a liability.
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Perry, Alvin, Emad Rahim i Bill Davis. "Startup Success Trends in Small Business Beyond Five-Years". International Journal of Sustainable Entrepreneurship and Corporate Social Responsibility 3, nr 1 (styczeń 2018): 1–16. http://dx.doi.org/10.4018/ijsecsr.2018010101.
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While entrepreneurs help to drive venture growth through business development in their respective cities, approximately 50% of new business ventures fail within the first 5 years of operation. Boss concluded that over 60% of entrepreneurs and small business owners fail within the first 6 years of doing business. This article examines some of the main factors that support early growth stage entrepreneurial sustainability for small business startups. In this article, entrepreneurship success factors, failure rates and sustainability are examined through qualitative research, expanding on factors identified in previous studies and applying them to different geographical areas. The results of this study can help reduce the number of small business failures by providing actionable knowledge to entrepreneurs in the start-up and early growth stages of business development.
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Putu Agustini, Ni Luh, Putu Agus Swastika i Ni Made Estiyanti. "Analisa Nilai Valuasi Startup Berdasarkan Faktor Keuangan Dan Faktor Non Keuangan Media Online PT. XYZ Bali". REMIK (Riset dan E-Jurnal Manajemen Informatika Komputer) 3, nr 2 (29.03.2019): 5. http://dx.doi.org/10.33395/remik.v3i2.10101.
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Abstract
The number of internet users in Indonesia has increased rapidly in the past two decades. Technological developments coincided with the growth of pioneering companies or startups, both failures or great successes. Fundraising is the lifeblood of startup, a steady stream of funds from various sources will greatly help the company.The success of startups, one of them can be seen from how much the value of the startup’s valuation, The greater the value then the opportunity to get investors' funds wide open. PT. XYZ is one of the startup of online media in Indonesia and the first in Bali, investment funds can certainly support and optimize the development of the company. Considering the importance of investment funds for the sustainability of the company, a valuation calculation is needed to gain an opportunity to receive funding. The important elements of the company, both in terms of financial and non-financial, will be the attraction of investors to invest.
Keywords : Valuation, Startup, Investment
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Santoso, Nurudin, i Faizatul Amalia. "Designing An Application of Software Project Management By Using Framework Scrum (SPM-Scrum)". Journal of Information Technology and Computer Science 6, nr 1 (30.04.2021): 25–32. http://dx.doi.org/10.25126/jitecs.202161297.
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Most of failures of startup application in many countries reached 75%, while the startup failures in Indonesia reached 90%. These failures were caused by non-technical or management factors in managing startup. The RPL (Software Engineering) Laboratory of FILKOM of Brawijaya University has a roadmap to develop an application to guarantee the success of a management software project. The data analysis had been performed on FILKOM student’s thesis work which generally develops software that has main obstacle in the management. A study solution which was developed through scientific SDLC and PMLC combined with Scrum method becomes an application named SPM-SCRUM. The results of analysis carried out on several software development projects refer to the Iterative SDPM process. Furthermore, the strategy of Iterative SDPM combined with Scrum method produces a system architecture design that separates the Front End and Back End
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Gwarda-Gruszczyńska, Edyta. "Intellectual property protection in startups". Kwartalnik Nauk o Przedsiębiorstwie 67, nr 1 (31.03.2023): 39–50. http://dx.doi.org/10.33119/knop.2023.67.1.3.
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In recent years, there has been a sharp increase in startups. This enables the rapid development of technology and technological innovation. Many inventors and innovators create intellectual property that is not always adequately protected. When observing the life cycles of startups, it can be noticed that large number of these startups become inactive within the first three years of operation. The aim of this article is to answer the questions: what factors influence startup successes and failures? Is the lack of intellectual property protection one of such factors, and if so, how can startups secure their inventions or innovations? What strategies can be applied to protect intellectual property? What does intellectual property protection look like in Polish startups? Desk research was used as the research method in the article. The literature on the subject was analysed along with the reports and studies of research companies, institutions associating startups and the websites of patent attorneys and law firms that help startups in the protection of intellectual property. Research has shown that, in most cases, startups see the need to protect intellectual property, which is of particular importance in high-tech sectors. Many factors can contribute to the failure of a startup at various stages of its development. It is important that the intellectual property is protected at the initial stage of the startup’s development, and that the company has created and applied an appropriate intellectual property protection strategy.
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Aminurahman, Fakhreza, Lien Herlina i Nur Hasanah. "BIG DATA CAPITALIZATION IN ATTEMPT TO SOLIDIFY TANIHUB STARTUP OPERATIONS: A CASE STUDY". Journal of Information System and Technology Management 7, nr 27 (30.09.2022): 269–79. http://dx.doi.org/10.35631/jistm.727021.
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The high growth of startups in the VUCA (Volatile, Uncertainty, Complexity, Ambiguity) era was offset by the high number of failures of various businesses that relied on the technology. In many industries, the increasing level of vulnerability, uncertainty, and complexity of businesses is undermining the market and changing the nature of competition. Tanihub startup is an e-commerce startup that is considered able to come out as a winner by capitalizing the big data they formulated. This study aims to (1) identify variations in big data owned and formulated by the Tanihub Startup Company during its business, (2) review any big data that can be a sustainable competitive advantage for Tanihub Startup, and (3) formulate the implications regarding big data capitalized by Tanihub Startup Company. This study uses VRIO analysis in determining the big data of a company's competitive advantage and marketing in the formulation of strategies to maintain a sustainable competitive advantage. Big data that has been extracted through the 3 scopes, then processed and analyzed using VRIO (Valuable, Rare, Inimitability, Organize) to determine various variations of big data. Tanihub Startup that can be a competitive advantage for the company. Through the VRIO test results of the big data variations that have been analyzed, formulate 10 big data that can be categorized as a sustainable competitive advantage for the company Startup Tanihub. Then, formulate a market strategy based on these competitive advantages using marketing genius.
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Al Falih, Abdulaziz Abdulmohsen. "A Comparative Analysis of Start-Up Entrepreneurship Support between the UK and Kingdom of Saudi Arabia". Journal of Entrepreneurship and Business Innovation 7, nr 2 (31.08.2020): 1. http://dx.doi.org/10.5296/jebi.v7i2.17511.
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Start-ups in many countries face numerous challenges especially the inadequacy of financial and professional support. Lending to startups is perceived as risky due to the high possibility of business failures. Globally, there is a consensus on the significance of entrepreneurship particularly for social and economic development. Consequently, the correlation between startups and entrepreneurial support has attracted immense interests from researchers and policymakers.In this paper, the researcher sought to identify the support systems availed to startups in the UK and Sudi Arabia and compare the ease of establishing new businesses between the two countries. A qualitative and quantitative research approach was adopted with a sample of 100 participants from each country. The data collected wasanalysed using statistical package for social scientists (SPSS) and presented in the form of tables and graphs. The results showed that government support systems had a significant impact on the performance of startup entrepreneurship in the two countries under consideration. It was also found that startup entrepreneurship support systems were more favorable in the UK than in Saudi Arabia. In conclusion, the researcher formulated some recommendations for increasing support for startup entrepreneurship in both countries including the provision of practical programs for encouraging entrepreneurial mindsets, especially among learners.
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Faghri, A., M. Buchko i Y. Cao. "A Study of High-Temperature Heat Pipes With Multiple Heat Sources and Sinks: Part I—Experimental Methodology and Frozen Startup Profiles". Journal of Heat Transfer 113, nr 4 (1.11.1991): 1003–9. http://dx.doi.org/10.1115/1.2911193.
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A high-temperature sodium/stainless steel heat pipe with multiple heat sources and sinks was fabricated, processed, and tested. Experimental results from tests performed both under vacuum and in air are presented. The startup behavior of the heat pipe from the frozen state was investigated for various heat loads and input locations, with both low and high heat rejection rates at the condenser. No startup evaporator dryout failures were found, although the heat pipe was sonic-limited during startup in air.
Rozprawy doktorskie na temat "Startup failures"
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Dantas, Gustavo Ferreira. "How business models can affect startup failure : Monkey´n Apps Business Study". Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19331.
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Mestrado em Gestão/MBAAs startups são jovens empresas de base tecnológica focadas no desenvolvimento de produtos ou serviços de ponta, sob condições de incerteza. Nesse cenário, um modelo de negócios inadequado pode levar a uma falha nos negócios, pois o modelo de negócios descreve a arquitetura dos elementos que permitem que uma organização crie, configure e valor apropriado. Esta dissertação tem como objetivo identificar como os modelos de negócios estão associados ao fracasso de startups. Para esse fim, usamos um único estudo de caso baseado em uma startup brasileira, a Monkey'n Apps. Os dados foram coletados por meio de entrevistas com o fundador e um funcionário. A análise avalia as construções apresentadas no modelo de negócios integrado de Wirtz (2016) e, em seguida, relacionamos esses modelos parciais aos processos de criação de valor, configuração de valor e apropriação de valor. Nossos resultados sugerem que a inicialização falhou devido ao modelo de recursos. Apesar de ser o modelo parcial mais crítico, o modelo de recursos foi caracterizado por um desalinhamento entre os fundadores, o que levou a uma liderança fraca. A falta de habilidades gerenciais contribuiu para deteriorar o ambiente da empresa, que mais tarde deixou o fundador ignorar seu principal ativo, seus funcionários.
Startups are young technology-based companies focused on developing state-of-the-art products or services under conditions of uncertainty. In this scenario, an inappropriate business model can lead to business failure since the business model describes the architecture of the elements that allow an organization to create, configure, and appropriate value. This dissertation aims to identify how business models are associated with the failure of startups. For this purpose, we use a single case-study based on one Brazilian startup, Monkey'n Apps. The data was collected through interviews with the founder and one employee. Our analyses evaluate the constructs presented on Wirtz's (2016) integrated business model and then we relate those partial models to the processes of value creation, value configuration and value appropriation. Our results suggest that the start-up failed because of the resource model. Despite being the most critical partial model, the resource model was characterized by a misalignment between the founders led to a poor leadership. The lack of management skills contributed deteriorate the environment in the company that later on let the founder to ignore their primary asset, their employees.
info:eu-repo/semantics/publishedVersion
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Ek, Gabrielle, i Ciriak Eszter. "The high risk of failure in micro-enterprises : Reducing failure-risk by evolving the traditional business plan". Thesis, Umeå universitet, Företagsekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-150029.
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Today’s economy of the European Union is statistically proven to be largely made up of startup enterprises. Startups, that has been and will be an essential part of the economy, be it present or future. However, it is a well-known fact that startup failure rates are quite high, both in the economy as a whole as well as the restaurant industry which is of focus in this paper. Therefore, there is a pressing need among both scholars and entrepreneurs to figure out how to reduce the micro-enterprise startup failure rates. It is why; this paper was written with the purpose of studying the components of a traditional business plan model, to look for gaps and parts that are worth developing more. Primary concern was to find out the necessary steps a startup must take in the business plan to better avoid financial failure in the pre-established startup period – which is over 42 months. Therefore the following research question was posed: “How can the components of the traditional business plan be adapted or complemented by contemporary research, and, entrepreneurs’ views and experiences in order to better avoid financial failure of a micro-enterprise start-up within the European restaurant industry?” In order to answer this question a qualitative study was done; contemporary research was reviewed and compared with primarily collected data which was gathered by conducting semi-structured interviews with managers and employees of restaurants. The abductive approach allowed the authors to “enrich” the established theories used. It was made clear that two prominent gaps were found in the traditional business plan models; networking and a red-thread strategy. The first gap, networking, includes the need to establish a “network identity” within the network that the startup operates in, and to plan how the network that the business operates in can be used, as well as clearly state what purposes and benefits it provides. The second gap, red-thread strategy, emphasizes the need of a strong overall focus on the desired goals and visions of the organization in order for it to better operate and function, and specifically, how it is to be implemented to permeate throughout daily operations. It is to make the operational inferences of the vision clear, and how the startup will ensure that the aim will stay the same through their day-to-day operations. To conclude, it was found that by allegedly filling up those two gaps by including them in detail in the business plan, the startup could have a bigger chance of avoiding financial failure within the startup period.
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Straub, Derek S. (Derek Stephen). "Scale-up of a high technology manufacturing startup : failure tracking, analysis, and resolution through a multi-method approach". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101333.
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Thesis: M. Eng. in Manufacturing, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 95-98).
Product reliability, quality, and performance are essential for all companies, especially high technology manufacturing startups looking to scale-up successfully. Company image and reputation can be heavily impacted by product failures. The cost of failures in-house and at the customer will only increase as a company scales up. Failure mitigation is critical to the success of a product and its company throughout the entire product lifecycle. This thesis proposes an ideal Failure Mitigation Strategy (FMS) that provides a methodology and framework with linear process workflow and easy to follow steps that lead to the reduction of cost from failures. Establishing a strong FMS will assist the company in learning from their failures while reducing the total number and average cost of failure events. The ideal FMS was tailored to and implemented at New Valence Robotics Corporation (NVBOTS) in Boston, Massachusetts, as a case study. The ideal FMS consists of failure tracking, failure analysis, and multi-method failure resolution. Failure events are first observed and properly documented via the failure tracking system. Failure tracking data is then processed during failure analysis using a total cost model to automatically prioritize and down select the most impactful failure event types. Root cause analysis is then performed on the top priority failure event types. Finally a robust multi-method failure resolution methodology uses an economical combination of design and process changes along with testing to eliminate or reduce the cost of those failures. Over 200 failure events were tracked, including 50 unique failure event types, accounting for over $75,000 in costs at NVBOTS. A unified and improved tracking system was implemented at NVBOTS along with a powerful analysis framework. Failure analysis was performed, prioritizing the failures by total cost and a failure resolution framework was designed to implement the solutions to the top priority failure event types. The ideal Failure Mitigation Strategy offered in this thesis provides NVBOTS and other entities a framework that allows for full understanding of the current failure landscape as well as a systematic method to reduce the impact from failures through elimination and mitigation.
by Derek S. Straub.
M. Eng. in Manufacturing
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Liu, Xiaobo. "Optimal Timing to Start Treatment Using Structural Failure Time Models". Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1532132805119808.
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Shabbir, Ali M. Eng Massachusetts Institute of Technology. "Scale-up of a high-technology manufacturing startup : improving product reliability through systematic failure analysis and accelerated life testing". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101334.
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Thesis: M. Eng. in Manufacturing, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 112-115).
Ensuring product reliability is a key driver of success during the scale-up of a high-technology manufacturing startup. Reliability impacts the company image and its financial health, however most manufacturing startups do not have a solid understanding of their product's reliability. The purpose of this thesis is to introduce systematic failure analysis to the engineering design process and to establish a framework for testing and analyzing product life so that imperative business decisions and design improvements could be made with regards to reliability. A detailed study and implementation of these process improvements to address reliability issues was conducted at New Valence Robotics Corporation (NVBOTS) in Boston, Massachusetts. Systematic failure analysis was achieved through the creation and implementation of Failure Modes and Effects Analysis (FMEA) procedures. A single FMEA iteration was performed on the NVPro printer to identify the top risk component-linear ball bushings-for detailed life analysis. Following an in-depth investigation of potential failure modes of the linear bushings, an Accelerated Life Test (ALT) was designed using Design of Experiments (DOE) principles. An accompanying test apparatus with mechatronic control was also designed. The ALT was not actually executed but representative data was analyzed for illustrative purposes using the General Log-Linear (GLL) life-stress relationship and a 2-parameter Weibull distribution for the accelerating stresses of mechanical load and lubrication. The work performed provides NVBOTS and similar high-technology manufacturing startups a complete starting point for systematically analyzing their product's reliability and quantitatively evaluating its life in a resource efficient way.
by Ali Shabbir.
M. Eng. in Manufacturing
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Cotterill, Keith. "How do attitudes of habitual high-technology entrepreneurs to early-stage failure differ in Silicon Valley, Cambridge and Munich?" Thesis, University of Cambridge, 2013. https://www.repository.cam.ac.uk/handle/1810/244653.
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Entrepreneurs develop new technology ventures in uncertain conditions with unproven technologies and limited resources. The majority of such ventures fail, yet entrepreneurship is regarded as a national (and regional) engine for economic growth. This thesis aims to examine entrepreneurs’ attitudes to failure in order to reveal insight on how entrepreneurs learn and how they identify subsequent opportunities, and investigate possible regional differences in such attitudes and entrepreneurial responses. There is much literature on entrepreneurial failure but relatively little that is focused on attitudes to failure, the high-technology industry, or international comparisons. This thesis examines how entrepreneurs’ attitudes to failure in early-stage technology companies differ in the USA (Silicon Valley), UK (Cambridge) and Germany (Munich), and implications for entrepreneurial learning and opportunity identification in these regions. Interviews with habitual entrepreneurs explore their experiences of failed ventures, using a methodology from qualitative psychology - Interpretative Phenomenological Analysis (IPA) - for the gathering and analysis of data to reveal emergent trends. This analysis is then used to compare attitudes to failure within and between each region, and a preliminary conceptual framework is proposed for analyzing future experiences of entrepreneurial failure. Findings from this idiographic study suggest that although each entrepreneur’s experience of and attitudes to failure is unique, there are more commonalities than differences between regions. Furthermore, these findings reveal the importance of the use of language and narrative in the analysis of such accounts. In addition, the results allow reflection on the appropriateness and limitations of methodologies such as IPA for this subject. This thesis contributes to theory by examining ‘effectuation’ as a way to understand these experiences, and discussing the impact of findings in relation to attribution theory, prospect theory and real-options theory. This thesis contributes to practice by augmenting existing knowledge of entrepreneurial failure through the comparative (regional) approach and the industry-specific (high-technology) focus. It may also improve the preparedness of new practitioners and entrepreneurs, with positive implications for future entrepreneurial success.
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Paula, Rosemberg Ribeiro de. "Análise de risco na introdução de novas tecnologias em startups". Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19923.
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Mestrado em Contabilidade, Fiscalidade e Finanças EmpresariaisSabe-se que o ambiente corporativo é cada vez mais complexo, pois o gerenciamento de uma organização convive diariamente com a imprevisibilidade e ambiguidade, principalmente, quando a empresa está inserida em mercados dinâmicos e aleatórios. Nestes mercados, as empresas startups ganham cada vez mais espaço face as empresas tradicionais. Nesse sentido, o gerenciamento de risco torna-se uma ferramenta cada vez mais necessária uma vez que visa identificar e gerir a incerteza, analisando quais deles podem impactar os objetivos estratégicos da organização. Por esse motivo, tem-se como objetivo identificar como os empreendedores gerenciam o desenvolvimento de um produto ou serviço e os aspectos que representam riscos nesse processo. A metodologia deste trabalho é qualitativa e a investigação foi realizada com base em uma empresa startup. A entrevista semiestruturada deu suporte de informação para a construção do mapa de relação de causa e efeito dos riscos identificados e para a utilização da ferramenta de gestão fundamentada no planejamento estratégico da empresa. Com a análise, percebe-se que os objetivos de negócio colocam a estratégia em prática, ou seja, há uma estrutura de gerenciamento de riscos alinhada à estratégia e aos objetivos da empresa no processo de planejamento estratégico. Para além disso, percebeu-se que as características inerentes à empresa estão alinhadas com a literatura, no que diz respeito ao sucesso das empresas startups.
It is known that the corporate environment is increasingly complex, since the management of an organization coexists daily with the unpredictability and ambiguity, especially when the company is inserted in dynamic and random markets. In these markets, startup companies gain more and more space compared to traditional companies. In this sense, the risk management becomes an increasingly necessary tool since it aims to identify and manage uncertainty in a timely manner, discerning which of them may affect the strategic objectives of the organization. For this reason, the objective is to identify how the entrepreneurs manage the product or service development and the aspects that represent risks in this process. The methodology used in this study is qualitative and the research was carried out based on a Startup company. The semi-structured interview gave information support for the construction of the cause and effect relationship map of the risks identified and for the use of the management tool based on the company's strategic planning. With the analysis, it is realized that the business objectives put the strategy into practice, that is, there is a structure of risk management aligned with the strategy and objectives of the company in the process of strategic planning. In addition, it was noticed that the characteristics inherent to the company are in agreement with the literature with regard to the success of startups companies.
info:eu-repo/semantics/publishedVersion
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Pedro, Beatriz de Castro Silva Miranda. "Impacto das competências de marketing no sucesso (insucesso) das Startups". Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19561.
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Mestrado em Gestão e Estratégia IndustrialApesar da crescente tendência para o aparecimento de startups nos mercados, a taxa de sucesso das mesmas permanece reduzida. Assim sendo, torna-se necessário perceber o motivo pelo qual esta tendência está, muitas vezes, condenada ao insucesso. Posto isto, o marketing foi identificado como um dos principais motivos pelos quais as startups não sobrevivem. Assim sendo, o propósito deste estudo é analisar o impacto das competências de marketing nas startups uma vez que, ao identificar os aspetos que levam ao seu sucesso, é possível concluir como é que a má exploração das competências de marketing podem conduzir a startup a falhar. Como tal foi conduzido um estudo qualitativo, com recurso a entrevistas semiestruturadas, a 10 startups portuguesas de modo a conseguir alinhar as proposições desenvolvidas com a revisão de literatura efetuada. Os resultados obtidos permitiram confirmar que a exploração correta das competências de marketing, tanto estratégicas como operacionais, é um dos motivos que leva à continuidade das startups, o que significa, ao mesmo tempo, que um dos principais motivos pelos quais estas podem falhar é a utilização inadequada das mesmas. As competências de marketing estão associadas à continuidade de uma startup, e embora não sejam as únicas, têm um peso determinante. Torna-se, por isso, essencial que as startups desenvolvam estas competências para que se mantenham vivas.
Despite the growing trend towards the emergence of startups in the markets, their success rate remains quite low. Therefore, it's necessary to understand the reasons why the startups are often condemned to failure. Marketing has been identified as one of the main reasons why startups do not survive. Consequently, the purpose of this study is to analyze the impact of marketing competences on the success of startups since, by identifying the aspects that lead to their success, it's possible to conclude how the poor exploration of marketing competences can lead to your failure. As such, a qualitative study was conducted, using semi-structured interviews, to 10 Portuguese startups in order to align the propositions developed by the literature. The results obtained allowed us to confirm that the correct exploration of marketing competences, both strategic and operational, are one of the reasons that leads to the continuity of startups. This means, at the same time, that one of the main reasons why these failures happen are the inadequate use of these competences. Marketing competences are associated with the continuity of a startup, and even though they are not the only ones, they have a "decisive weight". It is therefore essential that startups develop these competences in order to promote their sustainability.
info:eu-repo/semantics/publishedVersion
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Lemos, Helio Ricardo Souza de. "The failure of early-stage technology startups in Brazil: a study about the contributing factors to the early-death of startups between 2009 and 2014 in Southeastern Brazil". reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/13098.
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This research aimed to find out which are the main factors that lead technology startups to fail. The study focused on companies located in the Southeast region of Brazil that operated between 2009 and 2014. In the beginning, a review of the literature was done to have a better understanding of basic concepts of entrepreneurship as well as modern techniques for developing entrepreneurship. Furthermore, an analysis of the entrepreneurial scenario in Brazil, with a focus on the Southeast, was also done. After this phase, the qualitative study began, in which 24 specialists from startups were interviewed and asked about which factors were crucial in leading a technology startup to fail. After analyzing the results, four main factors were identified and these factors were validated through a quantitative survey. A questionnaire was then formulated based on the answers from the respondents and distributed to founders and executives of startups, which both failed and succeeded. The questionnaire was answered by 56 companies and their answers were treated with the factor analysis statistical method to check the validity of the questionnaire. Finally, the logistical regression method was used to know the extent to which the factors led to the startups’ failure. In the end, the results obtained suggest that the most significant factor that leads technology startups in southeastern Brazil to fail are problems with interpersonal relationship between partners or investors.
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Lambertucci, Albertina. "Os fracassos das start-ups e a inadequação dos seus modelos de negócio : Alpha Start-up". Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19265.
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Mestrado em Gestão/MBAEsta dissertação avalia como uma start-up cria, configura e capta valor através de seu modelo de negócio. Identificar a relação entre esses aspetos do valor e o fracasso das start-ups é muito relevante devido à elevada taxa de mortalidade dessas empresas. Para estudar esta relação, utilizamos o estudo de caso em profundidade. Analisamos uma start-up tecnológica localizada em Lisboa, que desenvolveu dois modelos de negócios que deram origem a duas empresas e produtos diferentes, a empresa Alfa com o produto e-Alfa de streaming e notícias de música e a empresa Beta com o produto Beta de música ambiente para espaços públicos. Este estudo de caso permitiu identificar que o modelo da empresa Alfa tinha fragilidades em relação ao planeamento, ao seu modelo de receita, à sua dependência de um único fornecedor (editoras de música) e parcerias exclusivas (Microsoft). Estas foram as principais fontes de fracasso da empresa Alfa e permanecem um risco para a atual empresa Beta. Beta continua a depender de dois fornecedores (Passmúsica e Sociedade Portuguesa de autores). Os resultados deste estudo podem contribuir para aumentar as taxas de sucesso das start-ups, ao confirmar a necessidade de um bom planeamento e de uma revisão constante dos componentes do modelo de negócio.
This dissertation analyses how a start-up creates, configures and captures value through its business model. Identifying the relationship between these factors of value and failure is very relevant due to start-ups high mortality rates. To study this relationship, we use an in-depth case study. We evaluate a technological start-up located in Lisbon, which developed two business models that gave rise to two different companies and products: the Alfa company with the e-Alfa streaming and music news product and the Beta company with Beta Music for Public Spaces. Alpha's business model failed due to weaknesses in its planning and revenue model, reliance on unique sources of supply (music publishers) and on an exclusive partnership (Microsoft). These issues remain risk factors for the current Beta company. Beta continues to rely on only two sources of supply (Passmúsica and Sociedade Portuguesa de Autor). The results of this study may contribute to increase start-ups success rates by confirming the need of a good planning and constant review of business model components.
info:eu-repo/semantics/publishedVersion
Książki na temat "Startup failures"
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Centers for Medicare & Medicaid Services (U.S.). Medicare for children with end-stage renal disease: Getting started : for parents of children eligible for Medicare. [Baltimore, Md.]: Dept. of Health and Human Services, Centers for Medicare and Medicaid Services, 2008.
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Busacca, Maurizio, i Roberto Paladini. Collaboration Age. Venice: Fondazione Università Ca’ Foscari, 2020. http://dx.doi.org/10.30687/978-88-6969-424-0.
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Recently, public policies of urban regeneration have intensified and multiplied. They are being promoted with the aim to start social and economic dynamics within the local context which is subject to intervention. From the empirical analysis, we realise that such activities are mainly implemented by three subjects or by mixed coalitions (public institutions, actors of the third sector and companies). Within them, each player is moved by a multiplicity of interests and goals that go beyond their own nature – public interest, market and mutualism – and tend to redefine themselves, thus becoming hybrid forms of production of value (social, economic, cultural). By studying a number Italian and Catalan cases, this essay deals with the theory that, under specific conditions and configurations, a collaborative direction – of organization, production and design – would give life to successful procedures, even without the identification of a one-best-way. The collaboration is not simply a choice of operation, but a real production method which mobilises social resources to create hybrid solutions – between state, market and society – to complex issues that could not be faced solely with the use of the rationale of action of one among the three actors. In this framework, the systems of relations and interactions between players and shared capital become an essential condition for the success of every initiative of urban redevelopment, or failure thereof. Such initiatives are brought to life by the strategic role of individuals who foster connections as well as the dissemination of non-redundant information between social networks, and collective and individual actors which would otherwise be separated and barely able to communicate and collaborate with each other. In addition to the functions carried out by knowledge brokers, that have been extensively described in organisational studies and economic sociology, the aforementioned figures act as real social enzymes, that is to say, they handle the available information and function as catalysts of social processes of production of knowledge. Moreover, they increase the reaction speed, working on mechanisms which control the spontaneity.
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The Cult of We: WeWork, Adam Neumann, and the Great Startup Delusion. Crown, 2021.
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Pigeon, Mozelle. Non-Profit Startup : Grow to Start Your New Business and Avoid Failure: Startup Grants for New Nonprofits. Independently Published, 2021.
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Rowse, Edward S. Business Principles That Honor God; Worldwide: Startups, Operations, Successes and Failures. Independently Published, 2019.
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Rouse, William B. Failure Management. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198870999.001.0001.
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Failures are common phenomena in civilization. Things fail and society responds, often very slowly, sometimes inappropriately. What kinds of things go wrong? Why do they go wrong? How do people and organizations react to failures? What are the best ways to react? This book addresses these questions. The analytic approach to these questions is case based and addresses 18 well-known cases of failures. A multi-level framework is employed to integrate findings across the case studies. These findings are employed to outline a conceptual approach to integrated failure management. The overarching conclusion is that the conceptual design of an integrated approach to failure management can encompass all of the 18 case studies. They all would have benefitted from the same conceptual decision support architecture. This enables cross-cutting system design principles and practices, assuring that failure management in every new domain and context need not start with a blank slate.
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Chesbrough, Henry. Open Innovation Results. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198841906.001.0001.
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Open Innovation Results challenges conventional thinking about exponential technologies, and probes the deeper factors necessary to obtain economic and social value from technology. It shows that generating technology alone is insufficient: the technology must also be broadly disseminated, and then absorbed and put to work before its full value is realized. The same is true with Open Innovation. It is not enough to do pilots or proofs-of-concept in your innovation unit. Your innovation results must be broadly shared throughout the organization, across the siloes, and the businesses themselves must invest in time, money, and people to absorb the new innovation and take it to market. Open Innovation Results also provides the latest research and practices involving open innovation, discussing both the achievements and failures of putting open innovation to work. The book looks at innovation practices (Lean Startup, incubators, accelerators) in a variety of industries (consumer products, IT, telephony, pharmaceuticals), and in a variety of countries (US, EU, China) around the world.
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Todorovic, Nebojsa. ENTREPRENEUR SHIP GRAVEYARD: Real-Life Success-To-Failure Business and Startup Stories. Independently Published, 2021.
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Natalie, Nkembuh. Breaking the 90% Rule of Startup Failure: Tips to Grow Your Venture. Independently Published, 2019.
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Uhrig, Scott. Little White Book of Recruiting for Startups: Avoid Failures, Hire the Best Person for the Job, and Drive Your Company Toward Success. Independently Published, 2019.
Znajdź pełny tekst źródłaCzęści książek na temat "Startup failures"
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Feinleib, David. "From Failure, Success". W Why Startups Fail, 165–76. Berkeley, CA: Apress, 2012. http://dx.doi.org/10.1007/978-1-4302-4141-6_12.
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Triebel, Claas, Claudius Schikora, Richard Graske i Sarah Sopper. "Failure in Startup Companies: Why Failure Is a Part of Founding". W Strategies in Failure Management, 121–40. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72757-8_9.
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Matthews, Clifford. "Getting Started - the Inspection Visit". W A Practical Guide to Engineering Failure Investigation, 73–93. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118902691.ch5.
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Santisteban, José, Vicente Morales, Sussy Bayona i Johana Morales. "Failure of Tech Startups: A Systematic Literature Review". W CSEI: International Conference on Computer Science, Electronics and Industrial Engineering (CSEI), 111–26. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30592-4_9.
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Calderón, Gerardo Gabriel Alfaro, Víctor Gerardo Alfaro García i Hugo Alejandro Rivera Betancourt. "Hierarchization of Factors Involved in the Failure of Startups". W Economy, Business and Uncertainty: New Ideas for a Euro-Mediterranean Industrial Policy, 200–213. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00677-8_17.
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Bargagli-Stoffi, Falco J., Jan Niederreiter i Massimo Riccaboni. "Supervised Learning for the Prediction of Firm Dynamics". W Data Science for Economics and Finance, 19–41. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66891-4_2.
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AbstractThanks to the increasing availability of granular, yet high-dimensional, firm level data, machine learning (ML) algorithms have been successfully applied to address multiple research questions related to firm dynamics. Especially supervised learning (SL), the branch of ML dealing with the prediction of labelled outcomes, has been used to better predict firms’ performance. In this chapter, we will illustrate a series of SL approaches to be used for prediction tasks, relevant at different stages of the company life cycle. The stages we will focus on are (1) startup and innovation, (2) growth and performance of companies, and (3) firms’ exit from the market. First, we review SL implementations to predict successful startups and R&D projects. Next, we describe how SL tools can be used to analyze company growth and performance. Finally, we review SL applications to better forecast financial distress and company failure. In the concluding section, we extend the discussion of SL methods in the light of targeted policies, result interpretability, and causality.
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Hauge, Kjartan, Jukka Rantala i Timo Holopainen. "Startups Born Out of Academia: Structural Pattern of Monetization Failures, Rectified". W Advances in Human Factors, Business Management and Leadership, 3–8. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80876-1_1.
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Grant, David H. "Use of Routine Low-Temperature Viscosity Measurement to Prevent Sudden Transformer Failure Upon Very Cold Startup". W Viscosity and Rheology of In-Service Fluids as They Pertain to Condition Monitoring, 112–18. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2013. http://dx.doi.org/10.1520/stp156420120085.
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Raghuram, Parvati, i Gunjan Sondhi. "The Entangled Infrastructures of International Student Migration: Lessons from Covid-19". W Migration and Pandemics, 167–84. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-81210-2_9.
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AbstractThe impact of Covid-19 on international student mobility has been noted by policy makers and the media ever since the global lockdowns started in early 2020. However, most of the concerns focus on what the drop in student mobility means for the finances of the countries and educational institutions to which students would have moved; there has been little exploration of the students’ own experiences of Covid-19. This chapter explores the entangled education, migration, and finance infrastructures that shape international student migration and how they failed the students during the pandemic. It draws on questionnaires and interviews conducted with international student migrants from a range of countries and who are registered to study in the UK to point to how migration policies, consular services, educational institutions, and travel industry all affected students. It points to how these components are entangled, and that their failure during the pandemic led to particular forms of immobility and mobility, leaving many students stuck in uncertain and precarious situations. The chapter ends by suggesting that reading the pandemic as an acute unprecedented event is important but inadequate. It is also a window into the everyday failures that the entangled infrastructures of international student mobility posed before Covid-19, how these came to be and who benefited from these infrastructures.
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Scribner, Campbell. "False Start: The Failure of an Early “Race to the Top”". W The Founding Fathers, Education, and "The Great Contest", 69–83. New York: Palgrave Macmillan US, 2013. http://dx.doi.org/10.1057/9781137271020_4.
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Jackson, Peter, Alex Wholey, Eric Tsai i Darby Burns. "Root Cause Failure Investigation of MSCV Drain Failures". W ASME 2022 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/pvp2022-84282.
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Abstract Main Steam Stop and Control Valves (MSCVs) are safety critical components in modern steam power plants including large, combined cycle gas turbine (CCGT) plants. Repeated failures of the after seat drain piping at a dissimilar metal weld have occurred at one large CCGT that is regulated by the ISO in AGC and therefore experiences few startups. This paper describes the results from a comprehensive evaluation of contributors to the repeated failures in one of two MSCV including: pipe stress analysis of the drain pipe layout, vibration testing of the MSCV and drain piping system using accelerometers and motion amplified video (MAV) technology and other inspections of the large bore pipe hanger system adjacent to the valves. Forensic investigations by a metallographic laboratory were conducted which provide important conclusions about the root cause of the drain weld failures, material condition and heat treatment procedures. Additional calculations of transient thermal stress were also conducted in accordance with the guidance that is available in ASME Code Section III NB-3650 to address additional stress that is present due to transient temperature conditions at the failed DMW weld where a substantial geometric discontinuity is present between the drain pipe and the downstream forged block valve. Results from plant operating data archives were used to establish process conditions during plant startup and indexing the measured vibration characteristics when the MSCV drains opened and closed. Field NDT (PMI, UT thickness testing) and hardness testing was used to confirm the material in the drain lines components which have not experienced failures. Recommendations were developed from this program that identify the principal cause of the high level of vibration in the affected MSCV, the benefits of modifications to the drain system pipe materials, dimension and layout and the improvement of oversight of heat treatment of future repairs.
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Kim, Kyusung, Onder Uluyol i Charles Ball. "Fault Diagnosis and Prognosis for Fuel Supply System in Gas Turbine Engines". W ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84615.
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A fault diagnosis and prognosis method is developed for the fuel supply system in gas turbine engines. The engine startup profiles of the core speed (N2) and the exhaust gas temperature (EGT) collected with high speed sampling rate are extracted and processed into a more compact data set. The fuzzy clustering method is applied to the smaller number of parameters and the fault is detected by differentiating the clusters matching the failures. In this work, the actual flight data collected in the field is used to develop and validate the system, and the results are shown for the test on nine engines that experienced fuel supply system failure. The developed fault diagnosis system detects the failure successfully for all nine cases. For the earliest detection cases, the alarms start to trigger 26 days before the system completely fails and 7 days in advance for the last detection.
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Nadig, Ranga. "Tube Failure During Startup in a Steam Surface Condenser Installed in a Combined Cycle Plant Operating in Cold Climate". W ASME 2004 Power Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/power2004-52001.
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Combined cycle plants in cold climates experience low circulating water inlet temperatures during winter months. Low circulating water inlet temperatures combined with partial bypass steam flow to the condenser results in extremely low condenser pressures and high steam velocities. Improper design, control & operation of desuperheating valve and improper drainage of bypass header lines can lead to pockets of wet steam in the bypass steam. High steam velocities combined with wet steam pockets of varying quality can cause flow-induced vibration and tube failures. This paper examines the performance of a condenser in bypass mode for varying condenser pressures, bypass steam flow rates, support plate spacing, and moisture pockets with varying quality. Actual and critical steam velocities are calculated. Condenser operating points prone to flow-induced vibration and associated tube failures are predicted. Recommendations on safeguards to eliminate flow induced vibration and resulting tube failures are discussed.
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Le, Phat, Scott Olson i Taylor Shie. "Communication and Mitigation Strategies Related to the Leading Indicator of Pressure Cycle Fatigue". W 2020 13th International Pipeline Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ipc2020-9555.
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Abstract Pressure cycle fatigue has been shown in industry to be a contributing factor to pipeline failure. There are methods for pressure cycle fatigue monitoring that can be used as a leading indicator for the risk of the pipeline to fatigue related failure. Once lines with high cycling are identified, the risk of the cycling to the asset and the mitigation strategies for the cycling can be discussed within the organization. By mitigating the driving force of crack initiation and grow to failure in-service, the pipeline community is safer. Shell Pipeline Company, LP. (SPLC) experienced two in-service failures on the same pipeline in under a year where fatigue was a common root cause. Following the investigation of these failures, management requested communication of the risk of pressure cycle fatigue throughout the organization with the intent to mitigate the levels of pressure cycling across the system. All pipelines were put on a monthly dashboard of pressure cycling and sent to all staff for awareness and action. The company measures pressure cycling on all pipelines by normalizing the number of cycles to 25% of the specified minimum yield strength (SMYS). From January 2016 to December 2019, the number of monthly cycles on the top ten highest cycled segments were reduced from 45,000 cycles per month, to 18,970 cycles. This is a reduction of 58%. The number of Very Aggressively cycled pipelines was reduced from 2 to 0. The number of Aggressively cycled pipelines were reduced from 13 to as low as 3. This paper will share the strategies and methodologies used to achieve these results. The paper will share how the list of highly cycled pipelines and the monthly status reports were developed. The paper will also share how pressure cycling mitigation strategies for pipeline systems were developed in collaboration with facility engineering, business unit leads, controllers, schedulers, and integrity staff. The effectiveness of mitigation methods such as pressure reduction, installation of back-pressure control valves, changing of valve timing on startup and shutdown, changes to the scheduling on the pipeline, utilization of flying switch between tankage, etc. will be discussed. By reducing pressure cycling, the risk of fatigue related failures can be reduced. This program is continuously being improved because there is both management commitment and ownership of the issue throughout the organization.
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Johnson, Nathan G., i Kenneth M. Bryden. "Establishing Consumer Need and Preference for Design of Village Cooking Stoves". W ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-13629.
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In some villages the use of wood cooking stoves accounts for more than three-quarters of total village energy use. Because of this the design of clean, affordable, and desirable cooking stoves can have a dramatic impact on human health and the local economy. Unfortunately, too often development projects fail. For example, an estimated 30% of water projects in sub-Saharan Africa have failed prematurely in the last 20 years, and only 10% of cooking stove programs started in the 1980s were operational two years after startup. Similar anecdotal evidence suggests a mixed record of success for other energy, infrastructure, health, and sanitation projects in the developing world. In part, these failures occur because of a lack of design questions and design methods to identify consumer need and preference during the problem definition phase of the product design. Because isolated rural villages are generally far from the design engineers’ previous experiences it is even more important to gather in-depth primary data in isolated rural villages. Based on data collected during in-depth field visits to villages in rural West Africa during a village energy study this paper proposes a structured process for collecting the data necessary to design cookstoves that meet local needs, fit within local contexts, and create an aspirational experience that fosters a sustainable solution.
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Camilleri, Lawrence, Jorge Luis Villalobos, Pedro Luis Escalona, Alvaro Correal, Carlos Reyes, Luis Carlos Enriquez i Johanna del Cisne Gallegos Apolo. "Forty-Seven–Well Case Study: How a Holistic ESP Design for Deep Deviated Wells with Low Flow Rates Achieved Economic Production". W SPE Gulf Coast Section Electric Submersible Pumps Symposium. SPE, 2021. http://dx.doi.org/10.2118/204500-ms.
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Abstract The Shaya wells have vertical depths of 11,000 ft and are heavily depleted. They, therefore, require 10,000 ft of lift to achieve the target drawdown. Electrical submersible pumps (ESPs) were deployed, but because of the low flow rates (80 B/D), produced solids, and high free gas content, initial run lives were uneconomical. This 47-well case study demonstrates how a holistic design and operating procedure achieved both the target drawdown and an economical mean time between failure (MTBF). "Learning from history" was the key method as there was sufficient ESP data to determine the root cause of ESP failures based on a combination of dismantle inspection and failure analysis (DIFA) and operating conditions. Moreover, production testing combined with real-time downhole gauge data enabled inflow characterization with both nodal and pressure transient analysis, thereby establishing the well potential and ensuring that the new proposed design was not only reliable but also achieved the targeted drawdown. An additional requirement was to handle both the current low rates and higher rates associated with future waterflooding. A historical review of 9 wells was conducted, followed by a new ESP design that was proposed and installed in 47 wells, which achieved an MTBF of over 940 days, whereas previous designs in the same wells had an MTBF of only 650 days. This substantial improvement was achieved without compromising drawdown as the wells were produced with a flowing intake pressure of approximately 250 psia at setting depths of 9,500 ft. This result is particularly noteworthy when one considers the harshness of the well conditions and, in particular, bottom-hole temperatures of 240°F, fines migration, deviated wells with doglegs above 2.5°/100ft, intake pressures below bubble point and low productivity indices (PIs) of 0.2 B/D/psi. The high depletion combined with low PIs, which resulted in very low flow rates of as low as 50 B/D, was the most challenging factor of this application. Outflow modeling and wellbore hydraulics were also important considerations to limit solid fallback due to insufficient velocity in the production tubing as well minimize heat rise caused by startup transients, which can be long in low-PI wells. ESPs are traditionally best suited to wells with liquid rates providing sufficient cooling for both the motor and the pump as well as short unloading transients during startup. This success story, therefore, provides an important reference for future ESP applications in very low flow rates in deep wells, which are beyond the recommended application envelope of alternative low flow rate artificial lift solutions such as progressive cavity pumps and sucker rod pumps.
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Uluyol, Onder, Kyusung Kim i Charles Ball. "On-Board Characterization of Engine Dynamics for Health Monitoring and Control". W ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68810.
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This paper introduces a feature extraction method for characterization of gas turbine engine dynamics for the purpose of engine health monitoring as well as optimum control. For a vehicle health monitoring system that is comprehensive in its scope, and timely and accurate in its diagnosis, high fidelity engine models and a large amount of high-speed data both in steady-state as well as in transients are needed. However, limited computational resources available on-board, and the limited bandwidth capacity and the high cost of real-time data transmission place serious barriers in fulfilling that need. The approach presented in the paper seeks to overcome these barriers by separating the initial feature extraction stage of diagnostics algorithms from the modeling and trending stages. The first part which includes the detection of time instances that are critical to diagnosis and control is performed on board, while the latter is performed on a ground station. The approach is applied to the startup transient in a propulsion engine. A 50-fold reduction in data size is realized while achieving a highly accurate prognosis of hydro-mechanical assembly (HMA) failures.
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Sadowska, Anna, Leo Steenson, Michael Williams, Andrew Meredith, Jonathan Chong, Jeffery Anderson i Dwayne Kelly. "Automated ESP-Lifted Well Startup Using Model Predictive Control: Introduction of the Algorithm and Field Tests Results". W SPE Artificial Lift Conference and Exhibition - Americas. SPE, 2022. http://dx.doi.org/10.2118/209758-ms.
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Abstract The start of an electric submersible pump (ESP) is the most dynamic event in the life of the ESP, and one that has been shown to be the main contributor to the premature failure of the ESP; yet it is clearly unavoidable. This article introduces an algorithm comprising of a model-predictive controller and a moving horizon estimator for automating the well startup. Objectives and constraints related to the startup are considered for the whole well system, including the reservoir, the ESP, the tubing etc. A lumped-parameter model is established to model the fluid dynamics in the system. The estimator recalibrates the model and provides estimates (virtual measurements) in lieu of unavailable physical measurements. The operating sequences for the ESP and choke are then updated step-by-step by the controller, considering the model of the system, the startup objectives and constraints, and the measured feedback information from the wellbore gauges. The startup algorithm was implemented on a field edge device and deployed to a well in the Permian Basin. The algorithm executed two successful startups. A model recalibration was conducted before the second startup which improved the accuracy of setpoint tracking.
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Voll, Brian J. "Effects of Flow Accelerated Corrosion on Piping Steady-State Vibration Evaluations". W ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-2168.
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Piping steady-state vibration monitoring programs were implemented during preoperational testing and initial plant startup at most nuclear power plants. Evaluations of piping steady-state vibrations are also performed as piping and component failures attributable to excessive vibration are detected or other potential vibration problems are detected during plant operation. Additionally, as a result of increased flow rates in some piping systems due to extended power uprate (EPU) programs at several plants, new piping steady-state vibration monitoring programs are in various stages of implementation. As plants have aged, pipe wall thinning resulting from flow accelerated corrosion (FAC) has become a recognized industry problem and programs have been established to detect, evaluate and monitor pipe wall thinning. Typically, the piping vibration monitoring and FAC programs have existed separately without interaction. Thus, the potential impact of wall thinning due to FAC on piping vibration evaluations may not be recognized. The potential effects of wall thinning due to FAC on piping vibration evaluations are reviewed. Piping susceptible to FAC and piping susceptible to significant steady-state vibrations, based on industry experience, are identified and compared. Possible methods for establishing links between the FAC and vibration monitoring programs and for accounting for the effects of FAC on both historical and future piping vibration evaluations are discussed.
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Timperley, J., J. Michalec, W. Moore, H. Moudy i J. Hutt. "Rewind and Core Restack of AEP Conesville #5 Generator". W ASME 2004 Power Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/power2004-52145.
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This paper presents an overview of the design and field installation events involved in rewinding and restacking AEP’s Conesville #5 generator. This style of generator, commonly known as a “double tube stack” machine, has been susceptible in the past to stator end winding vibration, stator coil and core deterioration, and phase lead problems. Following tests and inspections, AEP decided to rewind this generator in anticipation of the consequences of these problems. Successful pro-active maintenance, which included a complete stator rewind and stator core restack, prevented a costly forced outage. Root cause analysis of the coil failures are described, as well as details of the core laminations problems. Specific design enhancements over and above the original design will be discussed. In addition, details of the existing core damage will be discussed, as well as procedures used for core restacking. Fiber optic monitoring instruments were installed on the coil ends and the phase leads after the new coil installation was complete. Results of these initial readings will be shared. Successful startup and continued operation of this unit demonstrates that refurbishment of these large generators with inner gas cooled technology is reliable and cost-effective over other alternatives, such as conversion to water cooled technology.
Raporty organizacyjne na temat "Startup failures"
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Rockoff, Hugh. Oh, How the Mighty Have Fallen: The Bank Failures and Near Failures That Started America’s Greatest Financial Panics. Cambridge, MA: National Bureau of Economic Research, marzec 2021. http://dx.doi.org/10.3386/w28577.
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Willson. CPSEX001 Experimental Evaluation of the Hoerbiger-Altronic HYPERfuel High Pressure Fuel Injection System. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), styczeń 2014. http://dx.doi.org/10.55274/r0011041.
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An evaluation study was conducted of the Hoerbiger/Altronic HYPERfuel� high-pressure fuel injection system. This work was performed by the EECL under contract to Hoerbiger Corporation of America. The project was funded by the Gas Technology Institute (GTI) and by the Pipeline Research Council International (PRCI). The first phase of this program consisted of start up and shakedown testing of the system. Start up was generally very straightforward and the system was operating and running the engine within a few hours of commencing start up / shakedown. The initial valve implementation tested would not operate at the target pressure of 500 psi. The initial test run was halted before its completion due to a failure of the EECL�s high pressure fuel gas compressor. A second round of testing and evaluation began on June 6. A new valve design produced by Hoerbiger was utilized in the second round of testing. This new valve operated successfully from 400 to 550 psi. The valves were not tested outside of this range.
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Gerilla-Teknomo, Gloria P., i Jiawen Yang. Creating a Successful New City Development Within a City Cluster: Global Knowledge and Insights for Xiong’an in the People’s Republic of China. Asian Development Bank, marzec 2022. http://dx.doi.org/10.22617/wps220111-2.
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The presence of anchor institutions and transport infrastructure, strong national and local government policies, and business models with private sector participation can jump-start and sustain new city development. This paper has studied 16 major new city developments in the world to determine the factors that contributed to their success or failure. These factors were analyzed to synthesize useful knowledge and draw insights that the Xiong’an New Area in the People’s Republic of China and other new city developments in the world can learn from to better achieve their growth objectives.
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Anayatova, Dilraba, Marina Basu, Saiarchana Darira, Andrew Freiband, Devynn Glanz, Atota Halkiyo, Setrag Hovsepian i in. Turn it around! An education guide to climate futures. Mary Lou Fulton Teachers College, maj 2022. http://dx.doi.org/10.14507/oge-tia.
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Building on the scientific evidence and keeping in focus policy promises made over the decades, this report mobilizes the power of socially engaged art to bring together visions and voices of youth from across the globe in a collective effort to address the root causes of the climate crisis. It starts with the premise that education is directly implicated in the climate crisis and our failure to imagine alternatives. But it can also be the catalyst for radical change. Aiming to shift and shuffle the dominant knowledge systems and categories with the cards from the Turn It Around! deck, this report urges you to turn toward the reality of the climate crisis by capturing its devastating impacts from youth perspective in a way statistical data might not. It challenges existing education policies, practices, and patterns as no longer possible, tolerable, or even thinkable. With the powerful imagination and creativity of youth, the report activates a series of turning points — intergenerational, decolonial, methodological, and pedagogical — in order to turn around the environmental catastrophe, while reconfiguring the role of education toward ecologically just and sustainable futures.
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Carpenter, Marie, i William Lazonick. The Pursuit of Shareholder Value: Cisco’s Transformation from Innovation to Financialization. Institute for New Economic Thinking Working Paper Series, luty 2023. http://dx.doi.org/10.36687/inetwp202.
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Once the global leader in telecommunication systems and the Internet, over the past two decades the United States has fallen behind global competitors, and in particular China, in mobile communication infrastructure—specifically 5G and Internet of Things (IoT). This national failure, with the socioeconomic and geopolitical tensions that it creates, is not due to a lack of US government investment in the knowledge required for the mobility revolution. Nor is it because of a dearth of domestic demand for the equipment, devices, and applications that can make use of this infrastructure. Rather, the problem is the dereliction of key US-based business corporations to take the lead in making the investments in organizational learning required to generate cutting edge communication-infrastructure products. No company in the United States exemplifies this deficiency more than Cisco Systems, the business corporation founded in Silicon Valley in 1984 that had explosive growth in the 1990s to become the foremost global enterprise-networking equipment producer in the Internet revolution. This paper provides in-depth analysis of Cisco’s organizational failure, attributing it ultimately to the company’s turn from innovation in the last decades of 20th century to financialization in the early decades of the 21st century. Since 2001, Cisco’s top management has chosen to allocate corporate cash to open-market share repurchases— aka stock buybacks—for the purpose of giving manipulative boosts to the company stock price rather than make the investments in organizational learning required to become a world leader in communication-infrastructure equipment for the era of 5G and IoT. From October 2001 through October 2022, Cisco spent $152.3 billion—95 percent of its net income over the period—on stock buybacks for the purpose of propping up its stock price. These funds wasted in pursuit of “maximizing shareholder value” were on top of the $55.5 billion that Cisco paid out to shareholders in dividends, representing an additional 35 percent of net income. In this paper, we trace how Cisco grew from a Silicon Valley startup in 1984 to become, through its innovative products, the world leader in enterprise-networking equipment over the next decade and a half. As the company entered the 21st century, building on its dominance of enterprise-networking, Cisco was positioned to upgrade its technological capabilities to become a major infrastructureequipment vendor to service providers. We analyze how and why, when the Internet boom turned to bust in 2001, the organizational structure that enabled Cisco to dominate enterprise networking posed constraints related to manufacturing and marketing on the company’s growth in the more sophisticated infrastructure-equipment segment. We then document how from 2002 Cisco turned from innovation to financialization, as it used its ample profits to do stock buybacks to prop up its stock price. Finally, we ponder the larger policy implications of Cisco’s turn from innovation to financialization for the competitive position of the US information-and-communication technology (ICT) industry in the global economy.
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Davey, Calum, Syreen Hassan, Chris Bonell, Nancy Cartwright, Macartan Humphreys, Audrey Prost i James Hargreaves. Gaps in Evaluation Methods for Addressing Challenging Contexts in Development. Centre for Excellence and Development Impact and Learning (CEDIL), wrzesień 2017. http://dx.doi.org/10.51744/cpip4.
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We start this paper by emphasizing that that we currently do not learn as much as we could from evaluations. While there are well-established methods for determining, and understanding, the effects of simpler interventions in one set of places (i.e. internal validity), it is less clear how to learn the most possible from evaluations of context-specific, complex, interventions, and apply what we learn to other contexts. This is especially important in international development where evaluations are limited by time, cost and opportunity, and where there is significant heterogeneity in the issues and contexts within which work is undertaken. Using examples and case studies throughout, we outline several gaps in evaluation methods that if addressed, could allow us to learn more. First, we argue that an important gap is the failure to combine the analysis and interpretation of process and outcome data, and illustrate the benefits of doing so. We then highlight principles that could be adapted to guide the integration from two methodological frameworks from other research fields, and discuss Bayesian modelling as a potential method that could be employed. Second, we place this gap within an evaluation approach, which relies on developing “midlevel” theories, and using data from evaluations to test and refine these theories to allow for knowledge from one setting to be transported to others. Finally, we identify further gaps and the challenges that confront this evaluation approach.
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Willson. L51709 Development-Test Electronic Gas Admission for Large Bore Engines. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), sierpień 1994. http://dx.doi.org/10.55274/r0010114.
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The pipeline industry uses over 8,000 large bore engines in gas transmission/compression service". These engines are typically gas fueled and spark ignited. Some early versions of the engines are piston scavenged, but most are turbocharged. Some models, especially those equipped for lean burn operation, utilize pre-combustion chambers for enhanced ignition. Typically, the gaseous fuel is admitted directly into the top of the engine combustion chamber by a cam-operated, mechanical gas admission valve (MGAV). The MGAV is operated by an engine driven cam, cam follower, push rod, and rocker assembly. Such mechanisms offer little in the way of adjustability of the gas admission event: the ability to change the start of gas admission (SOA) and end of gas admission (EOA). The gas admission system is generally optimized for a particular mode of engine operation, typically rated speed and full load, and is fixed in that state. Desired changes in the gas admission cycle are not easily accomplished. At the same time, however, undesired changes commonly occur due to wear, failure, and mis-adjustment of the MGAV drive train. This report documents the development of a natural gas-fueled large-bore engine test bed (LBET) at Colorado State University and the subsequent test of an electronic gas admissions valve (EGAV) with in-cylinder pressure feedback. The LBET is now a state-of-the-art natural gas-fueled test facility. It will be open for use in late 1994 or early 1995 to all parties interested in testing equipment that might lead to safer, more economical and cleaner burning gas fueled engines. The EGAV tests were successful. The valve allows for precise control of fuel admission and end of admission timing. This results in the engine running in a real-time balance condition. Laboratory tests showed a 30% reduction of hydrocarbons and nitrous oxides reductions with a 2% reduction in fuel consumption. Field testing will continue in 1995 prior to commercialization.
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Yaron, Zvi, Abigail Elizur, Martin Schreibman i Yonathan Zohar. Advancing Puberty in the Black Carp (Mylopharyngodon piceus) and the Striped Bass (Morone saxatilis). United States Department of Agriculture, styczeń 2000. http://dx.doi.org/10.32747/2000.7695841.bard.
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Both the genes and cDNA sequences encoding the b-subunits of black carp LH and FSH were isolated, cloned and sequenced. Sequence analysis of the bcFSHb and LHb5'flanking regions revealed that the promoter region of both genes contains canonical TATA sequences, 30 bp and 17 bp upstream of the transcription start site of FSHb and LHb genes, respectively. In addition, they include several sequences of cis-acting motifs, required for inducible and tissue-specific transcriptional regulation: the gonadotropin-specific element (GSE), GnRH responsive element (GRE), half sites of estrogen and androgen response elements, cAMP response element, and AP1. Several methods have been employed by the Israeli team to purify the recombinant b subunits (EtOH precipitation, gel filtration and lentil lectin). While the final objective to produce pure recombinantGtH subunits has not yet been achieved, we have covered much ground towards this goal. The black carp ovary showed a gradual increase in both mass and oocyte diameter. First postvitellogenic oocytes were found in 5 yr old fish. At this age, the testes already contained spermatozoa. The circulating LH levels increased from 0.5 ng/ml in 4 yr old fish to >5ng/ml in 5 yr old fish. In vivo challenge experiments in black carp showed the initial LH response of the pituitary to GnRH in 4 yr old fish. The response was further augmented in 5 yr old fish. The increase in estradiol level in response to gonadotropic stimulation was first noted in 4 yr old fish but this response was much stronger in the following year. In vivo experiments on the FSHb and LHb mRNA levels in response to GnRH were carried out on common carp as a model for synchronom spawning cyprinids. These experiments showed the prevalence of FSHP in maturing fish while LHP mRNA was prevalent in mature fish, especially in females. The gonadal fat-pad was found to originate from the retroperitoneal mesoderm and not from the genital ridge, thus differing from that reported in certain amphibians This tissue possibly serves as the major source of sex steroids in the immature black carp. However, such a function is taken over by the developing gonads in 4 yr old fish. In the striped bass, we described the ontogeny of the neuro-endocrine parameters along the brain-pituitary-gonadal axis during the first four years of life, throughout gonadal development and the onset of puberty. We also described the responsiveness of the reproductive axis to long-term hormonal manipulations at various stages of gonadal development. Most males reached complete sexual maturity during the first year of life. Puberty was initiated during the third year of life in most females, but this first reproductive cycle did not lead to the acquisition of full sexual maturity. This finding indicates that more than one reproductive cycle may be required before adulthood is reached. Out of the three native GnRHs present in striped bass, only sbGnRH and cGnRH II increased concomitantly with the progress of gonadal development and the onset of puberty. This finding, together with data on GtH synthesis and release, suggests that while sbGnRH and cGnRH II may be involved in the regulation of puberty in striped bass, these neuropeptides are not limiting factors to the onset of puberty. Plasma LH levels remained low in all fish, suggesting that LH plays only a minor role in early gonadal development. This hypothesis was further supported by the finding that experimentally elevated plasma LH levels did not result in the induction of complete ovarian and testicular development. The acquisition of complete puberty in 4 yr old females was associated with a rise in the mRNA levels of all GtH subunit genes, including a 218-fold increase in the mRNA levels of bFSH. mRNA levels of the a and PLH subunits increased only 11- and 8-fold, respectively. Although data on plasma FSH levels are unavailable, the dramatic increase in bFSH mRNA suggests a pivotal role for this hormone in regulating the onset and completion of puberty in striped bass. The hormonal regulation of the onset of puberty and of GtH synthesis and release was studied by chronic administration of testosterone (T) and/or an analog of gonadotropin-releasing hormone (G). Sustained administration of T+G increased the mRNA levels of the PLH subunit to the values characteristic of sexually mature fish, and also increased the plasma levels of LH. However, these changes did not result in the acceleration of sexual maturation. The mRNA levels of the bFSH subunit were slightly stimulated, but remained about 1/10 of the values characteristic of sexually mature fish. It is concluded that the stimulation of FSH gene expression and release does not lead to the acceleration of sexual maturity, and that the failure to sufficiently stimulate the bFSH subunit gene expression may underlie the inability of the treatments to advance sexual maturity. Consequently, FSH is suggested to be the key hormone to the initiation and completion of puberty in striped bass. Future efforts to induce precocious puberty in striped bass should focus on understanding the regulation of FSH synthesis and release and on developing technologies to induce these processes. Definite formulation of hormonal manipulation to advance puberty in the striped bass and the black carp seems to be premature at this stage. However, the project has already yielded a great number of experimental tools of DNA technology, slow-release systems and endocrine information on the process of puberty. These systems and certain protocols have been already utilized successfully to advance maturation in other fish (e.g. grey mullet) and will form a base for further study on fish puberty.