Relevant bibliographies by topics / Warehouse efficiency

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Warehouse efficiency'

Author: Grafiati
Published: 29 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Warehouse efficiency"

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Islam, Md Rakibul, Syed Mithun Ali, Amir Mohammad Fathollahi-Fard, and Golam Kabir. "A novel particle swarm optimization-based grey model for the prediction of warehouse performance." Journal of Computational Design and Engineering 8, no. 2 (February 24, 2021): 705–27. http://dx.doi.org/10.1093/jcde/qwab009.

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Abstract Warehouses constitute a key component of supply chain networks. An improvement to the operational efficiency and the productivity of warehouses is crucial for supply chain practitioners and industrial managers. Overall warehouse efficiency largely depends on synergic performance. The managers preemptively estimate the overall warehouse performance (OWP), which requires an accurate prediction of a warehouse’s key performance indicators (KPIs). This research aims to predict the KPIs of a ready-made garment (RMG) warehouse in Bangladesh with a low forecasting error in order to precisely measure OWP. Incorporating advice from experts, conducting a literature review, and accepting the limitations of data availability, this study identifies 13 KPIs. The traditional grey method (GM)—the GM (1, 1) model—is established to estimate the grey data with limited historical information but not absolute. To reduce the limitations of GM (1, 1), this paper introduces a novel particle swarm optimization (PSO)-based grey model—PSOGM (1, 1)—to predict the warehouse’s KPIs with less forecasting error. This study also uses the genetic algorithm (GA)-based grey model—GAGM (1, 1)—the discrete grey model—DGM (1, 1)—to assess the performance of the proposed model in terms of the mean absolute percentage error and other assessment metrics. The proposed model outperforms the existing grey models in projecting OWP through the forecasting of KPIs over a 5-month period. To find out the optimal parameters of the PSO and GA algorithms before combining them with the grey model, this study adopts the Taguchi design method. Finally, this study aims to help warehouse professionals make quick OWP estimations in advance to take control measures regarding warehouse productivity and efficiency.
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Kim, Thai Young, Rommert Dekker, and Christiaan Heij. "Improving warehouse labour efficiency by intentional forecast bias." International Journal of Physical Distribution & Logistics Management 48, no. 1 (February 12, 2018): 93–110. http://dx.doi.org/10.1108/ijpdlm-10-2017-0313.

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Purpose The purpose of this paper is to show that intentional demand forecast bias can improve warehouse capacity planning and labour efficiency. It presents an empirical methodology to detect and implement forecast bias. Design/methodology/approach A forecast model integrates historical demand information and expert forecasts to support active bias management. A non-linear relationship between labour productivity and forecast bias is employed to optimise efficiency. The business analytic methods are illustrated by a case study in a consumer electronics warehouse, supplemented by a survey among 30 warehouses. Findings Results indicate that warehouse management systematically over-forecasts order sizes. The case study shows that optimal bias for picking and loading is 30-70 per cent with efficiency gains of 5-10 per cent, whereas the labour-intensive packing stage does not benefit from bias. The survey results confirm productivity effects of forecast bias. Research limitations/implications Warehouse managers can apply the methodology in their own situation if they systematically register demand forecasts, actual order sizes and labour productivity per warehouse stage. Application is illustrated for a single warehouse, and studies for alternative product categories and labour processes are of interest. Practical implications Intentional forecast bias can lead to smoother workflows in warehouses and thus result in higher labour efficiency. Required data include historical data on demand forecasts, order sizes and labour productivity. Implementation depends on labour hiring strategies and cost structures. Originality/value Operational data support evidence-based warehouse labour management. The case study validates earlier conceptual studies based on artificial data.
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Hu, Qing Ming, Dong Sheng Li, Xi Bing Li, Jian Hua Guo, and Shi Gang Wang. "Research on Storage Automation Rebuilding of Traditional Warehouse." Applied Mechanics and Materials 151 (January 2012): 544–48. http://dx.doi.org/10.4028/www.scientific.net/amm.151.544.

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A storage automation rebuilding scheme was proposed to enhance the space utilization and operational efficiency based on the analysis of the existing problem on traditional warehouse. The warehouse’s re-designing & re-planning scheme was determined, and the computer management & control system based on barcode and Radio Frequency (RP) technology was introduced with the fully utilization of traditional warehouse and original equipment. The hardware and software of the system were also expounded. Finally according to the requirement of host computer management & control system, operational control technology is integrated with information management, and the operation-oriented warehouse dynamic information management system was elaborated. The research results show that the rebuilding schemes have important theoretical and realistic significance on the improvement of changing the traditional warehouses into logistics centers.
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Savu, Ionel Dănuț, Bebe Adrian Olei, Sorin Vasile Savu, Gabriel Constantin Benga, and Răzvan Ionuț Iacobici. "Warehousing in Romania." Advanced Engineering Forum 34 (October 2019): 235–40. http://dx.doi.org/10.4028/www.scientific.net/aef.34.235.

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Any perturbation in politics and in economics affects the logistics of freight, from local to regional, national and even international. It creates weaving of the total volume of cargo and subsequently weaving of the market’s necessities regarding the transportation and warehousing. More, weaving of the volume of investments is specific effect. Such mechanism has been recorded in the last 7 years: increasing 2012-2015, decreasing 2015-2017, increasing 2017-2018. From 2017 it has been recorded a higher value of individual transactions, compared to 2016, when the transactions have dropped dramatically. In the end of the 2017, the mass center of the warehousing facilities were in the triangle Bucuresti-Pitesti-Ploiesti. The structure of the warehousing offer was at 31.12.2017: Green, energy efficient warehouses with available space for rent - Warehouse spaces: 197.440 m2, Warehouse rent: 45.540 m2, Average rental price: 2.73 €; A category warehouses with available warehouse space for rent - Warehouse spaces: 5.832.841 m2, Warehouse rent: 2.312.824 m2, Average rental price: 12.79 €; B category warehouses with available warehouse space for rent - Warehouse spaces: 487.388 m2, Warehouse rent: 222.248 m2 , Average rental price: 2.98 €; C category warehouses with available warehouse space for rent - Warehouse spaces: 109.432 m2, Warehouse rent: 60.582 m2 , Average rental price: 2.13 €; D category warehouses with available warehouse space for rent - Warehouse spaces: 1.950 m2, Warehouse rent: 1.950 m2 , Average rental price: 3.75 €; the rest to 100% was shared among Cold, Break-Bulk, Cross dock, Transload, Hazmat, and Food grade warehouse types. Keywords: warehousing, improve efficiency, improve quality, improve security, warehousing structur
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Dobrzański, Paweł, and Magdalena Dobrzańska. "Computer simulation of warehouse processes using the Enterprise Dynamics software." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 6 (June 30, 2018): 1026–29. http://dx.doi.org/10.24136/atest.2018.222.

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The dynamic development of industry and trade in recent years has forced the need to use new solutions in the field of warehouse management. The main reason for the changes being introduced is the optimization of the time of completing warehouse operations while reducing costs. This forces the reorganization of warehouses, warehouse operations and the introduction of modern equipment and devices used during the storage process. To ensure high efficiency and reduction of costs of warehouse processes, appropriate programs and simulation tools are used. The article presents the possibilities and benefits of software for modeling and simulation of processes taking place in warehouses.
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Chen, Chen, Jian Mao, and Xingwen Gan. "Design of Automated Warehouse Management System." MATEC Web of Conferences 232 (2018): 03049. http://dx.doi.org/10.1051/matecconf/201823203049.

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Aiming at the low degree of automation in production enterprises, real-time tracking and automatic access to warehouses are realized by developing warehouse management software. The paper first analyzes the system requirements, and then gives the overall design plan, through C#, MySQL and TCP. IP communication protocol, compiled a set of warehouse management system software. The actual application shows that the automation level and management efficiency of production enterprises are improved.
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Hamad, Murtadha M., and Muhammed Abdul Raheem. "EVALUATION OF BITMAP INDEX USING PROTOTYPE DATA WAREHOUSE." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 2, no. 2 (April 30, 2012): 39–42. http://dx.doi.org/10.24297/ijct.v2i1.2614.

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Bitmap indices have become popular access methods for data warehouse applications and decision support systems with large amounts of read-mostly data. This paper could arrive a number of results such as ; Bitmap Index highly improves the performance of Query Answering in Data Warehouses, It highly increases the efficiency of Complex Query processing through using bitwise operations (AND, OR). A prototype of Data Warehouse “STUDENTS DW” has been built according to the conditions of W. Inomn of Data Warehouses. This prototype is built for student's information.
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Tahboub, Khaldoun K., and Loay Salhieh. "Warehouse Waste Reduction Level and Its Impact on Warehouse and Business Performance." Industrial and Systems Engineering Review 7, no. 2 (December 30, 2019): 85–101. http://dx.doi.org/10.37266/iser.2019v7i2.pp85-101.

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Warehouses considered as having a strategic role in supporting the overall competitiveness of the supply chain through achieving improved efficiency. Accordingly, lean thinking have recently found its way in the warehouse operations. The aim of this paper is to propose and test a model to assess the level of waste reduction practices and its impact on warehouse and business performance, and to encourage scholars to develop models to assess lean thinking and waste reduction in warehouse operations. A Delphi technique used in order to develop related questionnaires to measure the degree of waste reduction in the different warehouse activities. The results suggested the existence of a positive relationship between waste reduction activities and business performance and warehouse operational performance. Finally, this paper provides practical implications for warehouse and supply chains managers and directions for future researchers in this field.
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Burinskienė, Aurelija. "Designing a Multi-Stage Transport System Serving e-Commerce Activity." Sustainability 13, no. 11 (May 30, 2021): 6154. http://dx.doi.org/10.3390/su13116154.

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In this paper, the author designs an e-commerce transport system, which covers the locations of producers’ facilities, distribution warehouses, and the business customers and deliveries among them. The study aims to identify the best locations for warehouses to increase efficiency in multi-stage transport systems. To reach this goal, the author revises distance metrics and suggests a methodological framework useful for warehouse location selection and practical applications. The empirical research is delivered by selecting a warehouse location using the maximal coverage model and mandatory closeness distance condition. After analyzing four warehouses’ alternatives, results are presented by applying various distance metrics. The results show that the selection of the location of the main warehouse depends on the level of returns that are defined by using the Mersenne Twister algorithm, and the distance calculation metrics representing differences in ranking. By the end of the study, the recommendation is given to apply the presented methodological approach for decision-makers seeking to improve service distances where decisions are made using path-based service distance criteria. The increase of efficiency is important from a policy development perspective, as findings of the study could help to reduce transport delivery costs for customers.
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Wen, Wei Jun. "Research on the Incremental Updating Mechanism of Marine Environmental Data Warehouse." Applied Mechanics and Materials 668-669 (October 2014): 1378–81. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.1378.

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Marine environment data warehouse can store massive data. After the full amount of historical data has been initially loaded, the incremental update mode must be applied to ensure timely updates of data. In this paper, in view of the marine environment data warehouse’s characteristics, such as massive data amount, large number of historical data and low update frequency, a complete set of mechanisms for incremental update of marine environment data warehouse was proposed to greatly improve the operating efficiency of marine environment data warehouse.
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Dissertations / Theses on the topic "Warehouse efficiency"

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Salomonsson, Emilie. "Challenges for warehouse efficiency : A case study at a stock point warehouse." Thesis, Högskolan i Gävle, Avdelningen för industriell ekonomi, industridesign och maskinteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-36953.

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Introduction: Improving efficiency through the supply chain has long been strived for by management. Traditional approaches focus on improving efficiency in the supply chain through optimization of a company’s internal activities, where warehouses play an important role. Companies are therefore dealing with the dilemma of how to increase efficiency in their warehouse, yet at the same time reduce operational costs. Current research focuses on strategies to increase efficiency in conventional warehouses by studying design, operations, and planning. Digitalization and lean warehousing are also emerging as important tools for warehouse efficiency. However, alternative warehouse types exist that are less researched. The research aimed therefore to investigate the challenges warehouses with stock point design face.   Methods: A qualitative and deductive case study approach was chosen. A literature review was first conducted to find the variables defining warehouse efficiency. Interviews and observations were then performed at the case company to investigate how the variables affect efficiency at the case company. Lastly, the theoretical framework was compared to the findings to find strategies to overcome the challenges.  Findings: Efficiency problems can be found in many aspects of the case company´s warehouse. Over time the warehouse has lost its structure, where a lot of reliability for warehouse procedures are placed on the employees and their knowledge about the company and all parts. Because of missing routines for reviewing parts data, changes in generations and parts being revised, are hard to keep track of which causes an effect on efficiency. It also increases the risk of deadstock.  Conclusions: In previous research, few studies could be found where researchers tackle the problems that multiple storage building causes on efficiency. By concluding that seven key variables define warehouse efficiency from previous research and applying them to a warehouse with stock point design, the challenges that an alternative warehouse face through the important variables in warehouse efficiency research could be explained.  All the variables affect efficiency, yet warehouse design has the biggest impact. Because of limited abilities with hand scanners and missing routines for reviewing parts data, operations, movement, and planning can also be concluded to have a high influence on efficiency.  To overcome the challenges, strategies for class-based storage assignment should be applied from the perspective of the storage building limitations. Right conditions for batching and good routines for warehouse procedures and reviewing parts data are also suggested as strategies.
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Fong, Hui Ni Grace. "Improving and maintaining the operational efficiency of a semiconductor equipment manufacturing warehouse." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101336.

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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 85-86).
The present work addresses an operational inefficiency problem at a semiconductor equipment manufacturing warehouse, Varian Semiconductors Associates and Equipment (VSEA). This problem is important because if unresolved, the warehouse is unable to meet the part delivery time target of 24 hours during the busy period. The downstream effects of the late part delivery are delayed production schedules and in the worst case scenario, a missed shipment to the customer, which is very costly. In order to improve the efficiency of the warehouse so as to consistently deliver parts on time, the picking efficiency needs to be enhanced. Parts are primarily picked from two types of storage locations - GL shelves and Vertical Lift Modules (VLMs). The picking efficiency can be improved by the simultaneous reduction in workload on GL and improvement in the VLM picking efficiency. The first part of this thesis focuses on improving the picking inefficiency at the VLMs by employing a more efficient picking method. From our time study, we find that the pick-and-consolidate (parallel picking) is more efficient than pick-and-pass (sequential picking). The average makespan time savings per order by pick-and-consolidate is 8% (20 minutes). The second part of this paper discusses what is required to maintain a high VLM picking efficiency. New metrics to measure the workload distribution of the VLMs and the average flow time per order are proposed. Three dynamic slotting methods that maintain a balanced workload distribution across the VLMs without the need for periodic review are also examined. The methods are evaluated based on how balanced is the workload distribution across the VLMs and the cost of implementation.
by Hui Ni Grace Fong.
M. Eng. in Manufacturing
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Blom, Amanda, and Sofia Stenman. "Warehouse management – streamlining picking rounds." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-25536.

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In this study we have conducted research on how to optimize inventory management within logistics. The focus in this study is to examine the picking rounds, the reason for this is because it is the most time consuming and expensive part within a warehouse. Is it possible to minimize the handling time to create efficient picking rounds? As a part of the research project AI has been investigated as well. If it is possible with help of AI, create a streamlining of current warehouse logistics. The purpose of this report is to investigate how to minimize the distance in picking rounds for efficient warehouse management. To be able to fulfil the purpose of the report research questions where conducted. The methodology that was chosen at first was traditional data collection. With the help of other studies conducted in this area we started to collect information. To be able to compare this information to the chosen company Care of Carl a case study was performed. A case study on the current situation at Care of Carl, and what the current optimization is based on. With the help of these two methods a result emerged. The result that was conducted by this study is that placement and categorization of products as well as route planning has a significant role when streamlining the picking process and minimizing the picking process. To store items in a warehouse the most suitable option is to use a free item placement, or storage out of sale frequency. But important to acknowledge is that it requires support systems to make this storage possible. When categorizing articles, it is crucial to combine this with a suiting picking method. In the case study, combining ABC categorization with zone picking was a possible solution. In general, it might be a good idea to invest in AI to use the picking position principle. With AI it is possible to analyse more complex data such as customer patterns and if this implementation succeeds it can lead to great advantages within a warehouse and the picking processes. The traveling distance constitutes most of the total picking time, it is important to have a route method that works with how you have chosen to place the items. This study shows that the optimal routing method is the one to use. This study showed that there are a lot of different strategies and methods on the current market. According to the case study Care of Carl can make big savings by changing strategies and methods. The reason why is because they have been reactive when investing in IT support systems. But in general, if a company wants to meet the current increasing requirements according to the globalization and the continuous changes within logistics operations, AI is the next step. The methods that are currently used are not sufficient, with the help of AI there is room for improvements within product allocation and route planning.
I denna studie har det undersökts hur man kan optimera lagerhanteringen inom logistik. Fokus har varit att undersöka plockrundorna, då det är den mest tidskrävande och kostsamma delen inom ett lager. Är det möjligt att minimera hanteringstiden och därmed effektivisera plockrundorna? Studien har även varit en del av ett forskningsprojekt där man har undersökt om det med hjälp av AI är möjligt att skapa en effektivisering av lagerhantering. Syftet med denna rapport är att undersöka hur man minimerar avståndet i plockrundorna för att effektivisera lagerhanteringen. För att kunna uppfylla syftet med rapporten utformades det forskningsfrågor kopplat till syftet. Traditionell datainsamling var den metod som användes för att komma i gång med studien. Den teoretiska referensramen som skapades i denna rapport var utifrån andra studier som genomförts inom detta område, men även utifrån att kunna besvara de forskningsfrågor som skapats. Det genomfördes även en fallstudie på företaget Care of Carl, med en nulägesbeskrivning samt en förklaring gällande hur deras nuvarande optimering tagits fram. För att kunna besvara syftet med rapporten och forskningsfrågorna jämfördes den teoretiska referensramen med den fallstudien som genomförts i samband med denna studie. Resultatet som framkom under studien var att placering och kategorisering av produkter såväl som ruttplanering har en avgörande roll gällande effektivisering av plockprocessen i ett lager. Gällande inlagringsmetod är det lämpligast att använda sig av flytande artikelplacering alternativt lagring utifrån försäljningsfrekvens. Vad som är viktigt att nämna är att båda metoder kräver ett stödsystem för att kunna implementeras. Gällande kategorisering av artiklar är det viktigt att kombinera detta med en passande plockmetod. I fallstudien var en möjlig lösning att kombinera ABC-kategorisering med zonplockning. Generellt sätt är AI en framtida värd investering då man kan använda sig av plockpositionsprincipen. AI möjliggör analysering av mer komplexa data som kundmönster och om denna implementering lyckas kan det leda till stora fördelar inom ett lager och för plockprocessen. Det är även viktigt att ha en ruttmetod som fungerar ihop med den placeringsmetod man använt sig av, då gångtiden och gångavståndet är det som utgör det mesta av den totala plocktiden. Denna studie visar att den optimala ruttmetoden är den som bör användas, och detta kräver en investering i ett stödsystem. Denna studie visade att det för tillfället finns många olika strategier och metoder på marknaden idag. Enligt fallstudien kan Care of Carl göra stora besparingar bara genom att ändra sina strategier och metoder. Orsaken är att de har varit reaktiva vid investeringav IT-stödsystem. Generellt sätt, om ett företag vill uppfylla de ökande kraven som finns till följd av globaliseringen och de kontinuerliga förändringarna inom logistikverksamheten, är AI nästa steg att ta. Metoderna som för närvarande används är inte tillräckliga och med hjälp av AI finns det möjlighet för förbättringar inom produktallokering och ruttplanering.
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van, Hooff Jonathan, and Oscar Tegni. "Development of Supply Chain : Information System Integration at Consignment Warehouse for Improved Efficiency." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-90520.

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Sandvik Rock Tools is operating in a highly competitive market. This requires them to constantly improve the efficiency of their organization, in order for them to maintain their position as market leaders, both in a short-term and a long-term perspective. Sandvik Rock Tools is currently working on developing and further improving their supply chain. The supply chain is a key organizational function and improvements of the supply chain aim to yield benefits like lowered total costs and better utilized inventory levels. The purpose of our work has been to develop the supply chain between Sandvik’s in-market warehouse and their customer site at Dannemora. The main focus of this thesis has been to enable automatic data collection and to lower the stock levels at the customer site in Dannemora. This would be accomplished by improving the information flow between the two entities in the observed supply chain and by enabling real-time inventory information, easily accessible to the warehouse manager. A barcode system was implemented in the warehouse at the Dannemora customer site and was integrated with warehouse management software that was developed by the authors. The implemented barcode system and the warehouse management software were used at the Dannemora customer site for a period of two months. The effects of the implemented barcode system working in combination with the warehouse management software were observed in several operational areas after implementation, and the results were positive and beneficial. Firstly, the barcode system and warehouse management software simplified the warehouse manager’s decision process, by providing easy access to necessary warehouse management information, like realtime inventory information. Secondly, it made the day-to-day work routine of the warehouse manager easier, this being the case because the barcode system that had been implemented had digitalized and automated many tasks that had previously been performed manually by warehouse manager. An excellent example would be the simplified process for order placement and stocktaking. Thirdly, it improved the information flow between the Dannemora customer site and Sandvik’s in-market warehouse in Sandviken, thereby improving the overall effectiveness of the entire supply chain, through shared information. The barcode implementation successfully lowered inventory levels by six percent on average.
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Toor, Paramveer Singh. "Improving operational efficiency of a semiconductor equipment manufacturing warehouse through strategic allocation of parts." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101477.

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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 (page 75).
The work addresses the operational inefficiency problem in a semiconductor equipment manufacturing warehouse of Applied Material's Varian Semiconductor Business Unit. At Varian, the target part delivery time from the warehouse to the production floor is 24 hours. However, during busy periods, parts are not delivered on time. Late part delivery from the warehouse to the production floor could delay the machine laydown date, which in turn could result in late or missed shipment of tools to the customers, which can be very costly. To improve the efficiency and the reliability of the warehouse, picking efficiency is to be improved. Parts from the warehouse are picked from three picking locations- Vertical Lift Modules (VLMs), GL, and RK. VLMs are automated machines, while GL and RK are manual picking zones. Picking an order from GL takes the most amount of time. The overall picking efficiency at the warehouse can be improved by partially shifting the workload from GL to the VLMs, and by further improving the picking efficiency at the VLMs. The workload from GL to the VLMs is shifted by transferring fast moving parts from GL to the VLMs. The picking efficiency of the VLMs is improved by balancing the workload of all five VLM pods, and by employing a more efficient 'pick-and-consolidate' picking strategy. The workload at GL is decreased by 25% and the workload at VLMs is increased by 13%. Despite the increase in workload at VLMs, 23% time savings could be achieved by balancing the utilization of all five VLM pods. Additional time savings of 20 minutes per order (8%) could be achieved by using 'pick-and-consolidate' picking strategy over 'pick-and-pass' picking strategy.
by Paramveer Singh Toor.
M. Eng. in Manufacturing
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Racca, Stephen Douglas. "Improving operational efficiency of a semiconductor equipment manufacturing warehouse through effective utilization of Vertical Lift Modules." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101335.

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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 59-60).
This thesis deals with improving the operational efficiency of automated part storage devices, in this case Vertical Lift Modules (VLM). This was accomplished by using dynamic slotting to maximize and maintain high material throughput, eliminating the need for periodic reslotting. Multiple VLMs can be used in parallel picking operations to improve material throughput. Common industry practice is to periodically reslot items once an unbalanced workload is obvious. This thesis investigates a method to avoid periodic reslotting by using incoming parts as a means to maintain a balanced workload amongst VLMs. Three different part allocation strategies are compared, namely Randomization, Snake and Order Grouping to determine their effectiveness and respective feasibility. The three strategies are then crafted into logical systems that could be used to strategically place received parts and eliminate the need for periodic reslotting. The Snake method was found to be the most well suited for this particular situation due to the small order sizes. This method provides a 35% savings in pick time, which is equivalent to approximately 733 hours annually.
by Stephen Douglas Racca.
M. Eng. in Manufacturing
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Markén, Camilla, and Emma Hultqvist. "Improving the internal efficiency at IKEA After Sales focusing on the development of a warehouse management system." Thesis, Uppsala universitet, Industriell teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-329083.

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A warehouse management system shall handle warehousing operations with the aim of gaining control over the company's storage capacity and inventory management. It should support functions such as goods receiving, warehousing, order receiving and orderpicking. In order for a warehouse management system to function optimally, it must be designed for the company's operations. The purpose of this thesis work is to analyze the current warehouse management system and associated processes at IKEA After Sales. By analyzing the current situation, the improvement work will result in a development of current system or system replacement. In addition, an implementation plan will be presented for the chosen solution. The systems that have been analyzed are M3 and Astro. The research work began with a visit to IKEA After Sales where observations and interviews were conducted. The focus was on mapping how operations work today and where there is potential for a warehouse management system. A list of requirements was then presented to describe what functions a system should contain. The requirement list was discussed with responsible IT-workers for both systems. The survey showed that a lot of work is done manually and is dependent on competent employees. The research work resulted in an implementation of untapped functions in the already used system M3. The implementation plan focuses on Warehouse Mobility, inventory function and Wave Picking features with associated routines. The routines for how the business should work was designed to facilitate the workload after implementing the above functions.
Ett lagersystem ska hantera lagerverksamheten med syftet att skapa kontroll över företagets lagringskapacitet och lagerhantering. Systemet bör stödja funktioner som godsmottagning, lagerläggning, ordermottagning och plockorder. För att ett lagersystem ska fungera optimalt bör det vara utformat efter företagets verksamhet. Syftet med examensarbetet är att analysera det nuvarande lagersystemet med tillhörande processer på IKEA After Sales. Genom analys av nuläget ska förbättringsarbetet resultera i en förbättring av nuvarande lagersystem eller förslag på byte av system. Vidare ska en implementeringsplan presenteras för det valda lösningsförslaget. De system som har analyserats är M3 och Astro. Examensarbetet inleddes med ett besök på IKEA After Sales där observationer och intervjuer genomfördes. Fokus låg på att kartlägga hur verksamheten arbetar idag och var outnyttjad potential för ett lagersystem finns. En kravlista framställdes för att beskriva vilka funktioner som bör finnas i ett lagersystem. Kravlistan diskuterades med respektive IT-ansvarig för systemen. Kartläggningen visade att mycket arbete sker manuellt och är beroende av kompetent personal. Resultat av examensarbetet är förslag på en implementering av outnyttjade funktioner i det redan använda systemet M3. Implementeringsplanen fokuserar på funktionerna Warehouse Mobility, stöd för inventering och Wave Picking med tillhörande rutiner. Rutinerna för hur verksamheten bör arbeta har utformats för att underlätta arbetsmomenten efter att ovanstående funktioner har implementerats.
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Khodr, Nino. "Strengthening Efficiency and Safety in Forklift Operations through Autobiographical Design." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296186.

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Forklift vehicles used for moving pallets and boxes in warehouses, have recently been integrated with Internet of Things (IoT) technology, in effect making forklifts networked and in parts controllable from afar. Human operators now carry out tasks according to instructions displayed on the screen of the IoT-forklift instead of just maneuvering around and executing tasks as they see fit. Through an autobiographical design process, hazardous situations arising because of limitations at the interface of the IoT-forklifts were revealed. To address these hazardous situations, we propose changing the interface of the forklift to better monitor the pick-up and dropping of packages. Changes to the digitally-enabled interface was done through the implementation of modalities. In short three modalities was considered, tactile, visual and auditive ones. While the tactile modality was not deemed to be feasible, the visual and auditive modalities was prototyped and evaluated through an Wizard of Oz method. Colored LED light strips showed to improve the handling, locating, selecting and moving the correct goods within the warehouse while keeping both operators and items safe. Further improvements to the digitally-enabled infrastructure in the warehouse that can optimize the routes to and from the pickup were devised. Cameras, sensors and lasers installed on advantageous places within the warehouse and on the forklift will help keeping track on both the forklift operators and the items during pick - and drop operations. As a result the system will have an awareness of its environment were both efficiency and safety will be further improved.
Gaffeltruckar som används for att flytta pallar och lådor i lager har nyligen integrerats med IoT-teknologin (Internet of Things), vilket gör gaffeltruckar i nätverk och i delar kontrollerbara långt ifrån. Mänskliga operatörer utför nu uppgifter enligt instruktionerna som visas på IoT-gaffeltruckens skärm istället för att bara manövrera runt och utföra uppgifter som de anser lämpligt. Genom en självbiografisk designprocess avslöjades farliga situationer som uppstod på grund av begränsningar vid gränssnittet mellan IoT-gaffeltruckarna. För att hantera dessa farliga situationer föreslår vi att man ändrar gaffeltruckens gränssnitt för att bättre övervaka hämtning och släppande av paket. Ändringar av det digitalt aktiverade gränssnittet gjordes genom implementering av modaliteter. Kort sagt övervägdes tre metoder, taktila, visuella och auditiva. Även om den taktila modaliteten inte ansågs vara genomförbar prototyperades och utvärderades de visuella och auditiva metoderna genom en Wizard of Oz-metod. Färgade LED-ljusremsor visade sig förbättra hanteringen, lokaliseringen, valet och flyttandet av de rätta varorna inom lagret och samtidigt hålla både operatörer och föremål säkra. Ytterligare förbättringar av den digitalt aktiverade infrastrukturen i lagret som kan optimera rutterna till och från upphämtningen planerades. Kameror, sensorer och lasrar installerade på fördelaktiga platser i lagret och på gaffeltrucken hjälper till att hålla koll på både gaffeltruckoperatörema och föremålen under plock - och släppoperationer. Som ett resultat kommer systemet att känna till sin miljö där både effektivitet och säkerhet kommer att förbättras ytterligare.
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SÖDERBÄRG, KARL. "Industry 4.0 to enhance lean resource efficiency." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299625.

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This paper is a practical and empirical investigation into the relationship and overlap between the two industrial paradigms of Lean Management and Industry 4.0. This is accomplished with an in-depth case study of a goods receipt to identify Lean wastes and accompanied by a discussion on how these wastes can be eliminated by enhancing the processes and material flows with Industry 4.0 technologies. It was found that efforts to enhance a process with Industry 4.0 Technologies should be preceded by ensuring that the process can be performed in a standardized manner. After that the study recommends improved methods of data collection which enables the effective implementation of other supporting Industry 4.0 Technologies.
Denna uppsats är en praktisk och empirisk utredning av relationen och samspelet mellan de två industriella paradigmen Lean Management och Industri 4.0. Till grund för det för det ligger en utförlig fallstudie av en godsmottagning för att identifiera Lean slöserier och en tillhörande diskussion om hur dessa slöserier kan elimineras genom att förbättra arbetsprocesser och materialflöden med Industri 4.0 och tillhörande teknologier. Ur det uppdagades att åtgärder för göra processer mer effektiva med dessa Industri 4.0 teknologier bör föregås av att processen kan utföras på ett standardiserat vis. När det är säkerställt så är det denna studies rekommendation att fokusera på metoder och verktyg för insamling av data vilket blir den grund som möjliggör implementering av behjälpliga och automatiserande Industri 4.0 teknologier.
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Söderbärg, Karl. "Industry 4.0 to enhance lean resource efficiency." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301241.

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This paper is a practical and empirical investigation into the relationship and overlap between the two industrial paradigms of Lean Management and Industry 4.0. This is accomplished with an in-depth case study of a goods receipt to identify Lean wastes and accompanied by a discussion on how these wastes can be eliminated by enhancing the processes and material flows with Industry 4.0 technologies. It was found that efforts to enhance a process with Industry 4.0 Technologies should be preceded by ensuring that the process can be performed in a standardized manner. After that the study recommends improved methods of data collection which enables the effective implementation of other supporting Industry 4.0 Technologies.
Denna uppsats är en praktisk och empirisk utredning av relationen och samspelet mellan de två industriella paradigmen Lean Management och Industri 4.0. Till grund för det för det ligger en utförlig fallstudie av en godsmottagning för att identifiera Lean slöserier och en tillhörande diskussion om hur dessa slöserier kan elimineras genom att förbättra arbetsprocesser och materialflöden med Industri 4.0 och tillhörande teknologier. Ur det uppdagades att åtgärder för göra processer mer effektiva med dessa Industri 4.0 teknologier bör föregås av att processen kan utföras på ett standardiserat vis. När det är säkerställt så är det denna studies rekommendation att fokusera på metoder och verktyg för insamling av data vilket blir den grund som möjliggör implementering av behjälpliga och automatiserande Industri 4.0 teknologier.
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Books on the topic "Warehouse efficiency"

1

Office, Energy Efficiency. Energy efficient lighting warehouses. London: Department of the Environment, 1994.

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Ben-Mahmud, Youssef S. The effect of warehouse layout on order-picking efficiency. 1987.

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Warehouse Management: A Complete Guide to Improving Efficiency and Minimizing Costs in the Modern Warehouse. Kogan Page, Limited, 2014.

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Warehouse management: A complete guide to improving efficiency and minimizing costs in the modern warehouse. 3rd ed. Kogan Page, 2018.

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Richards, Gwynne. Warehouse Management: A Complete Guide to Improving Efficiency and Minimizing Costs in the Modern Warehouse. Kogan Page, 2011.

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Great Britain. Energy Efficiency Office., ed. Introduction to energy efficiency in factories and warehouses. London: Energy Efficiency Office, 1994.

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Washington State Commission for Efficiency and Accountability in Government., ed. Department of General Administartion [sic] central stores efficiency study: Final report. [Olympia, Wash.]: Washington State Commission for Efficiency and Accountability in Government, 1990.

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Kaiser, Bernel-Vlrich. Corporate Information With Sap-Eis: Building a Data Warehouse and a Mis - Application With in Sight (Efficient Business-computing). Academic Press, 1998.

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Book chapters on the topic "Warehouse efficiency"

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McGinnis, Leon, Michael Schmidt, and Detlef Spee. "Model Based Systems Engineering and Warehouse Design." In Efficiency and Innovation in Logistics, 161–78. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01378-7_12.

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Zajac, Pawel. "Indicators and Measures of Energy Efficiency the Warehouse." In The Energy Consumption in Refrigerated Warehouses, 23–28. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40898-9_2.

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Zając, Paweł. "Model of Forklift Truck Work Efficiency in Logistic Warehouse System." In EcoProduction, 467–79. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07287-6_33.

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Berkdemir, Gizem, Gizem Atak, and Ferhan Çebi. "Warehouse Planning for Maximum Area Efficiency in the White Goods Sector." In Lecture Notes in Mechanical Engineering, 598–603. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62784-3_51.

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Jemelka, Milan, Bronislav Chramcov, and Pavel Kříž. "Increasing the Efficiency of Logistics in Warehouse Using the Combination of Simple Optimization Methods." In Advances in Intelligent Systems and Computing, 225–35. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67618-0_21.

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Sooksaksun, Natanaree, and Sriyos Sudsertsin. "Improving Efficiency of a Process in Warehouse with RFID: A Case Study of Consumer Product Manufacturer." In EcoProduction, 457–65. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07287-6_32.

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Aridome, Yoshiaki. "Improving the Labour Efficiency of a Partially Automated Warehouse: A Case Study from the Flour Milling Industry." In Achieving Competitive Edge Getting Ahead Through Technology and People, 377–82. London: Springer London, 1991. http://dx.doi.org/10.1007/978-1-4471-1904-3_64.

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Favre, Cécile, Fadila Bentayeb, and Omar Boussaid. "A Rule-Based Data Warehouse Model." In Flexible and Efficient Information Handling, 274–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11788911_29.

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Mazón, Jose-Norberto, and Juan Trujillo. "Enriching Data Warehouse Dimension Hierarchies by Using Semantic Relations." In Flexible and Efficient Information Handling, 278–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11788911_30.

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Leung, Carson Kai-Sang, and Wookey Lee. "Efficient Update of Data Warehouse Views with Generalised Referential Integrity Differential Files." In Flexible and Efficient Information Handling, 199–211. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11788911_17.

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Conference papers on the topic "Warehouse efficiency"

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Limere, Veronique, Melih Celik, Aditya Pradhan, and Mallory Soldner. "Warehousing efficiency in a small warehouse." In 2011 Ieee Workshop On Computational Intelligence In Production And Logistics Systems - Part Of 17273 - 2011 Ssci. IEEE, 2011. http://dx.doi.org/10.1109/cipls.2011.5953352.

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Lam, C. H. Y., K. L. Choy, and S. H. Chung. "Framework to measure the performance of warehouse operations efficiency." In 2010 8th IEEE International Conference on Industrial Informatics (INDIN). IEEE, 2010. http://dx.doi.org/10.1109/indin.2010.5549667.

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Cepolina, Elvezia Maria, Edoardo Cangialosi, Ilaria Giusti, Donato Aquaro, Gabriella Caroti, and Andrea Piemonte. "Impact of RFID-TTI technologies on the efficiency of perishable products logistics." In The 5th International Food Operations & Processing Simulation Workshop. CAL-TEK srl, 2019. http://dx.doi.org/10.46354/i3m.2019.foodops.001.

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"The paper concerns the logistics activities related to perishable products. Perishable products are delivered from the production site to a warehouse by refrigerated truck. Perishable products are accepted or not at the warehouse entrance, according to their detected quality levels; if accepted, they are stored in the warehouse in suitable environmental conditions. Finally, they are delivered by refrigerated truck to the destination. Human errors affect these activities. Perishable products have to be delivered in a suitable quality level to the destination. Because of human errors, sometime products arrive in an unsuitable quality level and therefore, there is a loss for the company. RFID technologies, integrated with time temperature indicators (TTI), allow a prompt detection of abnormal quality loss and the prompt actuation of mitigation actions. In order to evaluate the benefits of different RFID-TTI implementation set-ups, the study defines a methodology that measures the risk of monetary losses. The method is applied to a case study and the results are presented."
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Boehning, Markus. "Improving safety and efficiency of AGVs at warehouse black spots." In 2014 IEEE International Conference on Intelligent Computer Communication and Processing (ICCP). IEEE, 2014. http://dx.doi.org/10.1109/iccp.2014.6937004.

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Khabibullina, Elena, and Anatoly Pogodaev. "Data Warehouse Model of Regional Intelligent Transportation System in The Concept of ITS-Russia." In 2019 1st International Conference on Control Systems, Mathematical Modelling, Automation and Energy Efficiency (SUMMA). IEEE, 2019. http://dx.doi.org/10.1109/summa48161.2019.8947557.

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Farias, Giovanni, Francisco Brasileiro, Raquel Lopes, Marcus Carvalho, Fabio Morais, and Daniel Turull. "On the Efficiency Gains of Using Disaggregated Hardware to Build Warehouse-Scale Clusters." In 2017 IEEE International Conference on Cloud Computing Technology and Science (CloudCom). IEEE, 2017. http://dx.doi.org/10.1109/cloudcom.2017.19.

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Gupta, Abhishek, and Arun Sahayadhas. "Proposed Techniques to Optimize the DW and ETL Query for Enhancing data warehouse efficiency." In 2020 5th International Conference on Computing, Communication and Security (ICCCS). IEEE, 2020. http://dx.doi.org/10.1109/icccs49678.2020.9276824.

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Furesawa, Wataru, Tsuyoshi Takahashi, Yoichi Kageyama, Hachiro Endo, and Noriaki Sato. "Study on a Shipping Slip Assignment Method for Efficiency Improvement of Picking in a Warehouse." In The 7th International Conference on Intelligent Systems and Image Processing 2019. The Institute of Industrial Application Engineers, 2019. http://dx.doi.org/10.12792/icisip2019.063.

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Takahashi, Tsuyoshi, Makoto Nishida, Yoichi Kageyama, and Hachiro Endo. "Development of a Commodity Location Determining Method for Manual Picking Efficiency in an Unautomated Warehouse." In The 4th IIAE International Conference on Intelligent Systems and Image Processing 2016. The Institute of Industrial Applications Engineers, 2016. http://dx.doi.org/10.12792/icisip2016.078.

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Gu, Qiuyang, Yitao Xu, Zhenghai Li, Liyang Zhu, and Haowei Xia. "A Study on the Positioning of Warehouse Logistics Industry in Yangtze River Region--Based on the Agglomeration Efficiency of Service Industry." In 2016 2nd International Conference on Humanities and Social Science Research (ICHSSR 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/ichssr-16.2016.78.

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Reports on the topic "Warehouse efficiency"

1

Lekov, Alex, Lisa Thompson, Aimee McKane, Alexandra Rockoff, and Mary Ann Piette. Opportunities for Energy Efficiency and Automated Demand Response in Industrial Refrigerated Warehouses in California. Office of Scientific and Technical Information (OSTI), May 2009. http://dx.doi.org/10.2172/962214.

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