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1
Guerra, Jorge. "Improving Storage with Stackable Extensions." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/706.
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Storage is a central part of computing. Driven by exponentially increasing content generation rate and a widening performance gap between memory and secondary storage, researchers are in the perennial quest to push for further innovation. This has resulted in novel ways to “squeeze” more capacity and performance out of current and emerging storage technology. Adding intelligence and leveraging new types of storage devices has opened the door to a whole new class of optimizations to save cost, improve performance, and reduce energy consumption.
In this dissertation, we first develop, analyze, and evaluate three storage exten- sions. Our first extension tracks application access patterns and writes data in the way individual applications most commonly access it to benefit from the sequential throughput of disks. Our second extension uses a lower power flash device as a cache to save energy and turn off the disk during idle periods. Our third extension is designed to leverage the characteristics of both disks and solid state devices by placing data in the most appropriate device to improve performance and save power.
In developing these systems, we learned that extending the storage stack is a complex process. Implementing new ideas incurs a prolonged and cumbersome de- velopment process and requires developers to have advanced knowledge of the entire system to ensure that extensions accomplish their goal without compromising data recoverability. Futhermore, storage administrators are often reluctant to deploy specific storage extensions without understanding how they interact with other ex- tensions and if the extension ultimately achieves the intended goal. We address these challenges by using a combination of approaches. First, we simplify the stor- age extension development process with system-level infrastructure that implements core functionality commonly needed for storage extension development. Second, we develop a formal theory to assist administrators deploy storage extensions while guaranteeing that the given high level goals are satisfied. There are, however, some cases for which our theory is inconclusive. For such scenarios we present an experi- mental methodology that allows administrators to pick an extension that performs best for a given workload. Our evaluation demostrates the benefits of both the infrastructure and the formal theory.
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Barraca, João Paulo Silva. "Establishment of stackable community networks." Doctoral thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/11281.
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Doutoramento em Engenharia InformáticaUma das áreas de investigação em Telecomunicações de interesse crescente prende-se com os futuros sistemas de comunicações móveis de 4a geração e além destes. Nos últimos anos tem sido desenvolvido o conceito de redes comunitárias, no qual os utilizadores se agregam de acordo com interesses comuns. Estes conceitos têm sido explorados de uma forma horizontal em diferentes camadas da comunicação, desde as redes comunitárias de comunicação (Seattle Wireless ou Personal Telco, p.ex.) até às redes de interesses peer-to-peer. No entanto, estas redes são usualmente vistas como redes de overlay, ou simplesmente redes de associação livre. Na prática, a noção de uma rede auto-organizada, completamente orientada ao serviço/comunidade, integralmente suportada em termos de arquitetura, não existe. Assim este trabalho apresenta uma realização original nesta área de criação de redes comunitárias, com uma arquitetura subjacente orientada a serviço, e que suporta integralmente múltiplas redes comunitárias no mesmo dispositivo, com todas as características de segurança, confiança e disponibilização de serviço necessárias neste tipo de cenários (um nó pode pertencer simultaneamente a mais do que uma rede comunitária). Devido à sua importância para os sistemas de redes comunitárias, foi dado particular atenção a aspetos de gestão de recursos e controlo de acessos. Ambos realizados de uma forma descentralizada e considerando mecanismos dotados de grande escalabilidade. Para isso, é apresentada uma linguagem de políticas que suporta a criação de comunidades virtuais. Esta linguagem não é apenas utilizada para o mapeamento da estrutura social dos membros da comunidade, como para, gerir dispositivos, recursos e serviços detidos pelos membros, de uma forma controlada e distribuída.
One of the research areas with increasing interest in the field of telecommunications, are the ones related to future telecommunication systems, both 4th generation and beyond. In parallel, during the last years, several concepts have been developed related to clustering of users according to their interested, in the form of community networks. Solutions proposed for these concepts tackle the challenges horizontally, for each layer of the communication stack, ranging from community based communication networks (e.g. Seattle Wireless, or Personal Telco), to interest networks based on peer-to-peer protocols. However, these networks are presented either as free joining, or overlay networks. In practice, the notion of a self-organized, service and community oriented network, with these principles embedded in its design principles, is yet to be developed. This work presents an novel instantiation of a solution in the area of community networks, with a underlying architecture which is fully service oriented, and envisions the support for multiple community networks in the same device. Considerations regarding security, trust and service availability for this type of environments are also taken. Due to the importance of resource management and access control, in the context of community driven communication networks, a special focus was given to the support of scalable and decentralized management and access control methods. For this purpose, it is presented a policy language which supports the creation and management of virtual communities. The language is not only used for mapping the social structure of the community members, but also to, following a distributed approach, manage devices, resources and services owned by each community member.
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Vairani, Franco 1973. "bitCar : design concept for a collapsible stackable city car." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/49717.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Architecture, 2009.Page 214 blank.
Includes bibliographical references (p. 209-213).
Problems associated with the massive adoption of automobiles have become the center of a world-wide debate. While new technologies will eventually discover a sustainable solution to the environmental concerns (pollution, depletion of energy sources), cities will continue struggling to accommodate the increasing number of cars. The ability for people to move quickly across large distances and the infrastructure required by the automobile (mainly roads and parking) have also created an unsustainable urban landscape in many countries. The argument of this work is that these problems are partly the result of an outdated set of design premises for the automobile which have not changed since it appeared in the late 1800's. A typical car is too big, too heavy, most of the times it only transports one person for a few miles, and then it remains unused for 95% of the time. These inefficiencies multiplied by the staggering number of vehicles in circulation have resulted in huge energy losses, pollution and vast portions of the city lost in support systems for the car. The work discussed here proposes a different approach to urban transportation, by combining the advantages of mass transit with the convenience of personal mobility. Instead of designing automobiles to fullfil any kind of travel need and additional parking structures destined to accommodate 85% of these automobiles, this work proposes a reconfiguration of the car based on the characteristics of the majority of vehicular urban travel.
(cont.) The design of the car operates on a shared-ownership model, with a collapsible structure that allows vehicles to contract and park in stacks. Based on the available data, results indicate that such a design could potentially reduce the actual space requirements for a car between 1/20th and 1/75th. The design of the car is complemented by the use of electric in-wheel motors, developed in connection with the Smart Cities group run at the MIT Media Laboratory under the supervision of Professor Mitchell, for additional efficiency, especially in terms of energy consumption.
by Fanceo Vairani.
Ph.D.
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Fu, Jody (Jody C. ). "Manufacturing and design of low cost stackable drawer for mass production." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/114058.
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Thesis: M. Eng. in Manufacturing, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages [112]-113).
This thesis explores a next generation storage unit design for warehouses that increases stiffness, decreases assembly time, maintains or improves gross cubic utilization (GCU) - the amount of total available space that is actually utilized by product within the unit-while minimizing costs related to onsite assembly, shipping, packaging and manufacturing. This work focuses specifically on a stackable based storage solution in which machinery could stack and unstack different totes to stow and retrieve product. This is a descriptive thesis of the engineering design process - problem and goal identification, background research, functional requirements, creative idea generation and analysis, concept selection and iteration, design verification, and implementation - is used to propose a solution. Concept designs are primarily explored in CAD models. Designs are verified and analyzed for mechanical integrity through finite element analysis and manufacturing, packaging and assembly costs are analyzed to ensure feasible implementation. The proposed design weighed 3701b, had 82.5% GCU and took about 17.2 minutes to assemble. The manufacturing costs were $376.52; the packaging and logistics costs were $24.98 and $15.72 respectively; the onsite assembly costs resulted in $11.70. These costs totaled up to $429.52 for a stackable pod.
by Jody Fu.
M. Eng. in Manufacturing
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Joh, Youngjun. "Cost analysis and comparison of tray container style storage and stackable tote style storage." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118715.
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Thesis: M. Eng. in Advanced Manufacturing and Design, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (page 49).
With the emerging interest in automated distribution centers, shelves operated by mobile robots are also rising in importance. This paper focuses on comparing the cost of two potential shelf designs for storing product in an automated distribution center, a tray container style shelf and a stackable tote style shelf. Tray container style shelf has lower manufacturing costs, assembly cost and time, while stackable tote style shelf had competitive edge on packaging and shipping costs, and space utilization. The manufacturing cost, packaging cost, and shipping costs $174.44, $59.77, and $39.04 respectively for tray container shelf, and $380.83, $25.98, and $16.9 for stackable tote shelf. The assembly time and space utilization were 8 minutes and 81.5% for tray container shelf, and 17.2 minutes and 84.4% for stackable totes. Overall, stackable tote shelves cost 55% more, but have 2.9% space utilization advantage, which can have more cost savings in an urban distribution center.
by Youngjun Joh.
M. Eng. in Advanced Manufacturing and Design
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Mattoon, D. Stan. "Short-term certificates: Case studies of three California community colleges." Scholarly Commons, 2009. https://scholarlycommons.pacific.edu/uop_etds/2386.
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The purpose of this study was to analyze the characteristics of innovative designs within community college short-term certificate programs. Innovations in workforce training occur as stakeholders identify highly successful vocational programs and replicate those programs. Educational leaders in several states have developed short-term certificate programs to provide training that rewards students for completing modules of competencies en route to further certificates or degrees. Collective case studies were performed on the content of policy documents and of interviews with administrators at three California community colleges pertaining to the design of short-term vocational courses. The cross-case analysis showed agreement of the need for high levels of collaboration, development of fast-track programs to meet employability needs, and design of pathways to allow credits toward other certificates or degrees. Charts are displayed of data trends for short-term certificates earned by unit category over the years 1998-2007. Examples of short-term curricular schema are included in the appendices.
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Hansson, Åsa, and Månsson Anna Lundblad. "Busar eller stackare? : En studie om samarbetet mellan socialtjänst och polis." Thesis, Karlstads universitet, Institutionen för sociala och psykologiska studier, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-33422.
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The purpose of this study was to investigate how the social services and the police co-operate with each other when they come into contact with an individual within their realms of influence. It has been shown in a report by Fridolf (2008) that co-operation is not the aim itself but used as a mean to reach for better processes and better results. We have used qualitative interviews in the study, where three social workers and three policemen have participated from the same municipality to answer our questions. To analyze our result we have used system theory and organization theory. The result of our study shows that within this specific municipality the two agencies co-operate very well. The main reasons why are that co-operation has been going on for a long time and that because of this they have been able to build up a good strategy that works well. Another reason is the fact that this very municipality is relatively small, which in its turn leads to closeness to each other which makes it easy to get in contact and to be aware of who the others involved are. However, this very co-operation can sometimes cause friction, because of the fact that the police and the social services do not always get the same picture of the youth that they are working with. This is because both agencies get to see the youth in different circumstances. The police see the youth from the perspective of being a perpetrator and the social services see the youth from the perspective of needing help. This is something that from both sides can be looked upon as being unfavorable in certain circumstances which could also in other words cause a friction in the co-operation.Syftet med denna uppsats var att undersöka hur organisationerna socialtjänsten och polisen samarbetar. Det har visat sig, precis som Fridolf (2001) påstår i sin rapport, att samarbete inte är målet i sig utan en resurs för att skapa en bättre process och ett bättre resultat. Vi använde oss av kvalitativ metod för att utföra vår studie. Vi utförde därmed kvalitativa intervjuer där tre socialtjänstarbetare och tre poliser har deltagit från samma kommun för att svara på våra frågor. För att analysera vårt resultat har vi använt oss av systemteori och organisationsteori. Fungerar inte arbetet mellan de båda organisationerna kan detta bli förödande för individen. Resultatet av vår studie visar att inom denna specifika kommun fungerar samarbetet mycket bra. De skäl som nämns är att samarbetet har pågått under en lång tid och att man därför har lyckats bygga upp en god strategi som fungerar väl. Andra skäl som nämns är att just denna kommun är förhållandevis liten, vilket i sin tur leder till att närheten till varandra gör att man lätt kan få kontakt och att man vet vilka alla de som är involverade är. Det som kan ses som negativt i samarbetet och som ibland kan skapa friktion mellan dem, är det faktum att polisen och socialtjänsten inte alltid får samma bild av ungdomen de arbetar gemensamt med. Detta eftersom de båda aktörerna oftast får se ungdomen i olika sammanhang. Polisen ser ungdomen från perspektivet förövare och socialtjänst ser ungdomen från perspektivet hjälpbehövande. I och med detta bemöter de olika aktörerna ungdomen på olika sätt. Detta är något som från båda håll kan ses som ofördelaktigt i vissa tillfällen vilket med andra ord kan skapa friktion i samarbetet.
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Liljekvist, Jessica, and Cedergren Emmelie Wiss. ""En liten stackare som man ska tycka synd om" : Om socialarbetares syn på prostitution ur ett offer- och aktörsperspektiv." Thesis, Linnéuniversitetet, Institutionen för socialt arbete, SA, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-12140.
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Author: Jessica Liljekvist and Emmelie Wiss CedergrenTitle: A miserable wretch that you should feel sorry for – If social workers see persons who prostitute themselves as victims or agents. [Translated title]Supervisor: Marie ErikssonAssessor: Anders Giertz Our purpose with this study was to examine if social workers see persons who prostitute themselves as victims or as agents. We also wanted to examine how social workers see male and female persons who prostitute themselves. This study is based on the qualitative method and the result was analyzed with social constructionism, postmodern feminism and labeling theory. Eight social workers were interviewed in three different cities in Sweden. They were asked thematic questions about gender, victimization and agency and how their organizations and parliament affected their approach to prostitution. The results in the study showed that the majority of the social workers saw persons who prostitute themselves as traumatized victims. They pointed out that they had trouble seeing any agents in prostitution. Our results showed that they had a polarized approach to victimization and agency with different ratings. Trafficking victims had the highest grades of victimization. The lowest ratings were given to men and elderly persons who prostitute themselves. Men were seen as participants who got pleasure out of the prostitution. Women were exploited.
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Kangeryd, Gustaf, and Isabelle Henningsson. "Vem är skurk och vem är stackare? : Social kategorisering och tillhörighet- en sociologisk studie om socionomstudenters bedömning av normbrytande handlingar." Thesis, Karlstads universitet, Institutionen för sociala och psykologiska studier (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68284.
Full text
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Gachet, Céline. "Evolution bio-physico-chimique des déchets enfouis au Centre de Stackage de Déchets Ultimes du SYDOM du Jura sous l'effet de la recirculation des lixiviats." Lyon, INSA, 2005. http://theses.insa-lyon.fr/publication/2005ISAL0022/these.pdf.
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Ce travail de thèse s'inscrit dans un programme de recherche ADEME sur la gestion d'un Centre de Stockage de Déchets Ultimes, CSDU, en mode bioréacteur. Le projet a été défini afin d'évaluer l'impact de la recirculation des lixiviats sur les lixiviats et le biogaz et la stabilisation de la fraction organique fermentescible présente dans le massif de déchets. Les travaux de recherche ont consisté tout d'abord à développer des tests de laboratoire de simulation des conditions de stockage et à mettre en œuvre une méthodologie de caractérisation bio-physico-chimique des déchets ménagers du SYDOM du Jura pour évaluer l'influence des facteurs physico-chimiques sur l'évolution et la biostabilité de la matière organique. Par ailleurs, une partie des travaux de recherche a été consacrée à l'étude sur site. Le taux d'humidité des déchets est le principal facteur d'influence sur l'activité méthanogène. Par ailleurs, la recirculation des lixiviats semble influer sur la mobilisation des éléments solubles vers la phase liquide, favorisant leur contact avec les micro-organismes, avec pour conséquence la stimulation de la production de biogaz. L'évolution des caractéristiques bio-physico-chimiques des déchets avant et après incubation confirme ces observations. Les déchets ayant subi une recirculation présentent une biodégradation et une humification avancée par rapport aux déchets sans recirculation. Le suivi réalisé sur le site laisse apparaître de nombreuses fluctuations sur les paramètres liés à la production de biogaz et de lixiviats. Toutefois, les résultats semblent également montrer l'influence de la recirculation sur la matière soluble des déchetsThe bioreactor landfill is designed to optimize the humidity rate of the waste and the anaerobic biodegradation of the waste organic matter by leachate recirculation. The major interest of leachate recirculation is to increase the gas production rate under controlled moisture content and hence, to reduce the time period of leachate & biogas treatment. In partnership with the SYDOM of Jura and ADEME, leachate recirculation was performed in situ. In the same time, bioreactor cells at laboratory-scale were performed to determine the effect of several physico-chemical factors for the waste biostabilization and to determine the changes in waste organic matter. The bioreactor landfill increase the gas production rate and the waste biodegradation. At pilot with leachate recirculation, organic matter accumulate to much higher level in the leachate. In pilot with leachate recirculation, organic matter is more stable than organic matter of waste in pilot without leachate recycling
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Cheng, Cheng-Yan, and 鄭裎諺. "Stackable power supply system for automatic guided vehicles." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/b6vv24.
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碩士國立中央大學
機械工程學系
105
The purpose of the thesis is to design the power system of the Automated Guided Vehicle. We use Li- ion battery as a power source, and series six Li-ion batteries as one Li-ion battery package. It can also series different Li-ion battery packages to supply different voltage for use. Meanwhile, we complete electricity measurement, charge process management, and dispatch the power for the power system. The power system uses open circuit voltage with Coulomb Counting Method to measure the electricity, balance Li-ion batteries power by discharge to lengthen life cycle and use appropriate charge process management according to the different voltage of Li-ion batteries. We also design various protected circuits to confirm the safety of using power. The power system can use in different needs by different configuration. We design power supply management, charge process management, and dispatching power experiment in the experiment design chapter in the thesis to confirm the feasibility of the system.
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Huang, Che-Liang, and 黃哲亮. "The design and implementation of management and stackable switch." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/40910298867864173329.
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碩士國立中央大學
資訊工程學系碩士在職專班
92
For the object about improve the competition in the market during designed and created. The Embedded system has become a very important rule to embed in the target device. The main features about embedded system: improve product’s reliability, portably, reduce the cost and increase the specific functions. The method mixes hardware and software. On the H/W presented by “System On a Chip (SOC)”; and on the S/W the embedded operation system constructed the platform. On the other hand, the embedded system is to break the boundary and constraint about the traditional H/W and S/W. For some specific function, designer can use only H/W or pure S/W or bind the H/W and S/W to accomplish. Different choice must consider the cost, size and performance. For that matter, it’s important for designer that own analyst capability about whole system designing. In this paper, we use the embedded system as kernel to design the network product. Meanwhile we also use the special system on the chip (SOC), for our networking product “Management Stackable Switch”.
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Jeng, Yu-Huei, and 鄭諭徽. "Optimal Design of Pyramid Type of Stackable Spiral Mandrel Die." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/05835915665802996453.
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碩士國立交通大學
應用化學系所
96
Conventional spiral mandrel dies are widely used in the production of polymeric films. Better die design can promote the flow uniformity and prevent the formation of weld line. The multilayer film is used to comproise different polymers to from a product with multiple properties. The new type of stackable coextrusion has less wetted area of fluid and the width of die compared with the conventional coextrusion die.In this study,a two dimensional control volume method in coordination with the Taguchi method,was utilized to optimize the geometric parameters of the pyramid type of stackable spiral mandrel die. Under the isothermal condition,the influence of each processing variable on the performance of die base on the optimal processing condition and the flow situation in the spiral channelwere investigated. With the different number of channels and various processing mateils the flow uniformity and mixedness increased to some certain extend then decreased as the inclinded angle of the outer die wall kept increasing.
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Li, Nai-Cheng, and 李乃誠. "Stackable Power Storage System with Residual Power and Life Monitoring." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/s26hx8.
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碩士國立中央大學
光機電工程研究所
106
The aim this paper is to proposed designing stackable power storage system of the Automated Guided Vehicle which monitors battery life and measures residual power. By using Li-ion battery as storage battery, single 12V battery package assembles by six Li-ion which is series and parallel. Between each battery packages can connect together, and provide power source of 12V magnification. In addition, each battery packages has the function of life monitoring. We also plan completely the function of battery’s capacity management, charging process measurement, and scheduling of charging and supplying. In this power system, life monitoring can be established based on the method of cumulative error and scheduling of charging and supplying to complete dynamic measurement. Then using mixed type of residual power measurement which consisting of the method of open circuit voltage and the method of Coulomb Counting to measure capacity. Otherwise, the power system can extend battery life by discharging balance and monitoring temperature and current, and prevent it from dangerous state. When the power system is charging, it is managed by process measurement according to voltage of Li-ion batteries. Besides, it can be protected when overcharging and reverse charge and ensure safety of batteries. Depending on various voltage requirement, the power system can satisfied by using different configuration. Therefore, the author designs experiments of life monitoring, power supply management, charge process management, and scheduling of charging to confirm the feasibility of this power system. Finally, we confirm result of experiments are same as anticipation.
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Kao, Yu-Tsung, and 高毓聰. "Stackable transistors and non-volatile memories using high-density plasma gate dielectrics." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/m9jn36.
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碩士國立交通大學
光電工程研究所
101
In this thesis, low temperature and stackable thin film transistors was presented by using novel fabrication approach. Amorphous silicon(a-Si) films was first deposited at 500℃by inductively coupled plasma chemical vapor deposition system(ICPCVD) as the BOX(buried oxide) layer. After that, the a-Si films was transformed to poly-silicon films by using nanosecond laser spike annealing. Thereafter, the crystallinity of the poly-silicon films were examined by X-Ray diffraction(XRD) and transmission electron microscope (TEM) and the grain size was found to be about 300nm. In addition, we have successfully developed high-quality ultra-thin silicon oxide and silicon nitride films through modulation of nitrous oxide, argon flow, RF power and chamber pressure, etc. The leakage current of dielectric thicknesses of both 5nm silicon nitride and 7nm silicon oxide at 6 million volts / cm electric field are less than 10-7 A / cm2 Combining the thermal budget technologies and metal gate, We have fabricated a high performance TFT that exhibits electron mobility of 55 cm2/V-s , low subthreshold swing of 0.3 V/Decade, and high on/off ratio of 105. That stacked transistors are suitable for the integration of three-dimensional integrated circuits (3D-ICs) Planar back metal gate was fabricated under the channel of TFT and we can adjust threshold voltage at about 0.9V by applying a back-gate bias from-1V to 1V. Therefore, Vth is controllable for different types of logic circuits. On the basis of low thermal budget technologies transistor, we introduce a multi-layer of oxide/nitride /oxide as MONOS nonvolatile memory (MONOS NVM). Under 16V pulse bias, this MONOS exhibits a fast program/erase speed of 100 ns and 10μs and the memory window is 1V and 1.5V. As a result, the TFT and NVMs with metal-gate fabricated by low thermal budget technologies are promising devices for the hetero-integration in 3D-ICs application.
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Yang, Chaochieh, and 楊超傑. "A Development Of Testing Platforms For Composite Blades Of Stackable Vertical Axis Wind Turbine." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/67646624781762042665.
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碩士大葉大學
工業工程與科技管理學系
100
We give careful consideration to energy development in Taiwan under the issues of energy shortage and environmental protection in today's world. Wind power has already become a great commercial value; it is cheap, clean and easy to be attained. However, the efficient executions of wind power and environmental protection policies have become the world's common goal. Wind turbines can be classified into two main categories, namely, horizontal axis and vertical axis wind turbines [HAWT and VAWT]. Especially for VAWT, it had no adequate engineering case to exploit and had no international standard to refer. Therefore, in according with the relevant IEC-61400 standards, it is development of clamping apparatus to test the composite blades in test platforms, and use engineering software (CAD/CAE) to support the design and experimental stage. In addition, it is effective to short the design cycle and reliability of simulated analysis. Finally, we are discussed the failure modes and test results of the SVAWT blades under different manufacturing processes to verify the proposed experimental setup methods and manufacture techniques of the SVAWT blades pass static test and fatigue test systems are performed, and established the fatigue life equation by fatigue theory can effectively prediction the life of SVAWT blades. The information of technology developed can be provided.
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Wu, Chun-Wei, and 伍駿緯. "The Hardware and Software Co-Design of a Stackable OpenFlow Switch supporting Configurable Quality of Service." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/00634818918078691381.
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碩士國立臺灣科技大學
電子工程系
105
Finally, the experimental results show that the proposed stackable OpenFlow switch can effectively interconnect switches, as it can achieve effective packet switching for cross the switch. Furthermore, it also can guarantee quality of network resource.
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Chen, Yu Hsiu, and 陳譽修. "Application of Low Thermal Budget Far Infrared Ray Laser Technology on 3D Stackable Poly-Si FET." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/daphh4.
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碩士國立清華大學
電子工程研究所
104
In this thesis, we propose low thermal budget laser technologies to fabricate high-performance 3D stackable poly-Si FET, including green nanosecond laser used to produce high-quality poly-Si channel, far infrared ray laser used to anneal source / drain regions after ion implantation and form the metal silicide layer on the source / drain, thereby improves the device performance. Green nanosecond laser is employed to transform the channel layer of the device from a-Si to poly-Si thin film. After chemical mechanical polishing (CMP) process, the average grain size is larger than 700nm, and the mean surface roughness can be lowered efficiently; moreover, the nc-Si on the surface can be polished. Far infrared ray (FIR) laser is utilized to anneal the source / drain regions. Silicon films with various doping species are activated by FIR laser after the substrate temperature is raised to 400oC, and the sheet resistances of sub-100Ω/□ for both B/P-doped Si and 100~200Ω/□ for As-doped Si can be realized. It significantly outperforms rapid thermal anneal (RTA) process and obsesses lower thermal budget. In addition, the dopant profiles of boron and phosphorus observed by SIMS analysis are less diffused than the data prepared by RTA process. Finally, we produce NiSi layer by two-step annealing processes, involving RTA (250oC, 30s) for the first step and FIR laser at low temperature for the second step. After that, NiSi layer which has low resistivity is formed on the surface and is used to lower the contact resistance. Silicide made from these ways has lower thermal budget and it can obtain equivalent resistance in comparison with two-step RTA processes. We integrate the technologies mentioned above to the poly-Si FET, and the highest drive current can be reached to 285A/m for n-type and 111A/m for p-type respectively. The effect of different device sizes on the electrical characteristics will also be discussed in this thesis. The poly-Si FET fabricated from these methods not only has better electrical properties but also has lower thermal budget, thus it is beneficial to develop 3D sequential layered devices.
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Hsu, Tsun-Kai, and 許尊凱. "A Study of Optimal Rapid Energy-Storing Design Suitable for the Stackable Piezoelectric Power Generation Devices." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58508088167286125092.
Full textAbstract:
碩士國立中正大學
機電光工程研究所
100
For solving the globe warming problem, the action of creating renewable energy by wildly building the solar and wind power plants has been undoubtly to become two major developments. Unfortunately, the above two major efforts accordingly rely on a huge budget as well as a suitable working place to fully display their function efficiency. On the other hand, a newly developed technique by piezoelectric power generator to create renewable energy has caused much attraction since its friendly adoption; nevertheless the surrounding environment is lack of sunlight and wind. Basing on the statement mentioned in the above, the piezoelectric element is the core of the piezoelectric energy conversion system in this study, which utilizes the external force on piezoelectric module to generate an available output power. At the beginning, we have developed the optimal geometrical structure of stacked piezoelectric power generation device as the core structure. We use this core structure to design the experiments of the different layers and different arrangement of the piezoelectric power generation device. In addition, we also design a suitable energy storage system to the stacked piezoelectric power generation modules convert electrical energy is effectively stored, to achieve the objectives of the development of stacked piezoelectric generator of renewable energy. Evidence indicated that the two-set of optimal three-layer stackable piezoelectric power generation devices could obviously achieve an instantaneous output power (5.175 mW). At the same time, a 15 mAh Ni-MH battery could be fully-charged within forty hours by utilizing the two set of optimal three-layer stackable piezoelectric power generation devices constituting with energy storage system.
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Hsu, Ming-Han, and 許明翰. "A Study of Optimal Structural Design for the Stackable Piezoelectric Power Generation Device Combining with Energy Storage System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30749665207597838052.
Full textAbstract:
碩士國立中正大學
光機電整合工程研究所
99
For solving the globe warming problem, the action of creating renewable energy by wildly building the solar and wind power plants has been undoubtly to become two major developments. Unfortunately, the above two major efforts accordingly rely on a huge budget as well as a suitable working place to fully display their function efficiency. On the other hand, a newly developed technique by piezoelectric power generator to create renewable energy has caused much attraction since its friendly adoption, nevertheless the surrounding environment is lack of sunlight and wind. Basing on the statement mentioned in the above, the piezoelectric element is the core of the piezoelectric energy conversion system in this study, which utilizes the external force on piezoelectric module to generate an available output power. At the beginning, the single-layer piezoelectric power generation device will be designed and fabricated, which is covered by rubber materials and posted on top and bottom sides of piezoelectric element. Then, to improve the efficiency of conversion power, an optimal geometric structure will be designed and conducted. In order to reduce the occupied space of piezoelectric power generation module and to further increase the efficiency of conversion power, multi-layer stackable piezoelectric power generation module will be constructed. In addition, a suitable energy storage system will be also developed to store the conversion power. Evidence indicated that the two set of optimal three-layer stackable piezoelectric power generation devices could obviously achieve an instantaneous output power (6.68mW). At the same time, a 15 mAh Ni-MH battery could be fully-charged within thirty hours by utilizing the two set of optimal three-layer stackable piezoelectric power generation devices constituting with energy storage system.
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Yang, Ching-Wei, and 楊青維. "Simulation and Investigation of Random Grain-Boundary-Induced Variabilities for Stackable NAND Flash Application Using 3D-Voronoi Grain Patterns." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/3w8cg3.
Full textAbstract:
碩士國立交通大學
電子工程學系 電子研究所
102
This thesis investigates the random grain-boundary-induced variabilities for stackable NAND flash with TCAD simulations. Using the Voronoi method to describe grain boundaries (GBs) more accurately, the VT variations with the scaling of channel length (Lg ) and channel height (Hch) are analyzed. Through the comparison between 1D, 2D and 3D grain methods, our study indicates that the 3D-Voronoi grain can show a more realistic variability when devices are downscaled along the channel height (Hch) direction. Therefore, a full 3D consideration is suggested when modeling the random GB induced variation. In addition, the interaction between the random GBs and single-interface-trap induced random telegraph noise (RTN) is also investigated using 3D-Voronoi patterns. Our study indicates that the grain boundaries described by 3D grains may strongly interact with the charged trap and should be considered when the RTN is analyzed in stackable NAND flash.