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Articles 91 - 120 of 153
Full-Text Articles in Operational Research
Identifying Scotomata In Hazard Identification Caused By Ignorance And Overconfidence, Allen Johanson
Identifying Scotomata In Hazard Identification Caused By Ignorance And Overconfidence, Allen Johanson
Masters Theses
The manufacturing and construction industries are two of the most dangerous professions, and employees are frequently exposed to hazards and hazardous conditions which can lead to serious injury or even death. An observed phenomenon, frequently called the Dunning-Kruger Effect states that unskilled people are often unaware of their shortcomings and those with the higher-level skills often underestimate their abilities. This study examines employees’ training, years of experience, and performance to gauge any correlations among these variables in the area of hazard awareness. The goal of this study is to help individuals to recognize blind spots in their knowledge to identify …
Framework For Effective Resilience Managmenet Of Complex Supply Networks, Elham Taghizadeh
Framework For Effective Resilience Managmenet Of Complex Supply Networks, Elham Taghizadeh
Wayne State University Dissertations
In today's environment with high global and complex supply chains for engineered products, the ability to assess and manage the resilience of supply chains is not a luxury but a fundamental prerequisite for business continuity and success. This is particularly true for firms with deep-tier supply chains, such as the automotive original equipment manufacturers (OEMs) and their suppliers. Automotive supply networks are particularly facing growing challenges due to their complexity, globalization, economic volatility, rapidly changing technologies, regulations, and environmental/political shocks. These risks and challenges can disrupt and halt operations in any section of the supply network. Given that supply chains …
การปรับปรุงสถานีงานตรวจสอบถังแก๊สคลอรีนโดยใช้การประเมินทางสรีรวิทยาในการทำงาน และชีวกลศาสตร์, ภาณุพงศ์ ภาวิไล
การปรับปรุงสถานีงานตรวจสอบถังแก๊สคลอรีนโดยใช้การประเมินทางสรีรวิทยาในการทำงาน และชีวกลศาสตร์, ภาณุพงศ์ ภาวิไล
Chulalongkorn University Theses and Dissertations (Chula ETD)
สารคลอรีนที่มีความชื้นสูงสามารถกัดกร่อนถังโลหะบรรจุสารคลอรีนจนเกิดการรั่วไหล การนำถังมาบรรจุสารคลอรรีนใหม่จึงต้องมีการตรวจสอบและระบายน้ำออกจากถังโดยการยกถังคลอรีนคว่ำลง แต่การยกถังหนัก 50 กิโลกรัม จำนวน 100 ถังต่อคนต่อวัน และท่าทางการยกที่ไม่เหมาะสม ทำให้เกิดปัญหาการปวดหลังของพนักงาน ผลจากการประเมินภาระงานของพนักงานเพศชายทั้ง 10 คน พบว่าค่าแรงกดอัดสูงสุดที่กระดูกสันหลังส่วนล่างเฉลี่ยตลอดการยกอยู่ที่ 5,673.4 นิวตัน และ ผลจากการประเมินภาระความเหนื่อยล้าของงาน โดยวิเคราะห์อัตราการเต้นของหัวใจอยู่ในเกณฑ์ที่ไม่ปลอดภัย ซึ่งอาจเกิดอันตรายต่อผู้ปฏิบัติงานในอนาคต จากการปรับปรุงการทำงานทั้ง 3 แนวทางพบว่า แนวทางการใช้อุปกรณ์ช่วยยกคลอรีนและการใช้กล้องงูสามารถลดค่าแรงกดอัดสูงสุดที่กระทำต่อกระดูกหลังส่วนล่างเหลือน้อยกว่า 1,224.8 นิวตัน และผลประเมินภาระความเหนื่อยล้าของงานอยู่ในเกณฑ์ปลอดภัยกลายเป็นงานภาระเบา แต่แนวทางการใช้พนักงาน 2 คนยกถังคลอรีนสามารถลดค่าแรงกดอัดสูงสุดที่กระทำต่อกระดูกสันหลังส่วนล่างได้น้อยกว่า 3,992.4 นิวตัน และผลประเมินภาระความเหนื่อยล้าของงานอยู่ในเกณฑ์ปลอดภัยเพียง 4 คนจากพนักงานทั้ง 10 คน ตามแนวทางประเมินของ Brouha ดังนั้นทางหน่วยงานกรณีศึกษาจึงได้เลือกแนวทางการใช้อุปกรณ์ช่วยยกและพลิกถังคลอรีน เนื่องจากมีความคุ้มค่าในการลงทุนเทียบกับระดับความปลอดภัยที่ได้รับ
การจัดสมดุลสายการประกอบผลิตภัณฑ์ผสมแบบขนานหลายวัตถุประสงค์ที่ทำงานโดยคนงานและหุ่นยนต์, สุพิชชา งามพานิช
การจัดสมดุลสายการประกอบผลิตภัณฑ์ผสมแบบขนานหลายวัตถุประสงค์ที่ทำงานโดยคนงานและหุ่นยนต์, สุพิชชา งามพานิช
Chulalongkorn University Theses and Dissertations (Chula ETD)
ในงานวิจัยนี้ได้เสนอวิธีแก้ปัญหาของการจัดสมดุลสายการประกอบผลิตภัณฑ์ผสมลักษณะขนาน ที่มีการดำเดินงานการประกอบผลิตภัณฑ์โดยหุ่นยนต์, คนงาน และคนงานผู้พิการ สำหรับสายการประกอบแบบขนาน เป็นระบบการประกอบที่ประกอบด้วยสายการประกอบเส้นตรงตั้งแต่ 2 สายการประกอบขึ้นไป ถูกนำมาจัดเรียงในแนวขนานกัน มีข้อดีคือ ทำให้สามารถลดรอบเวลาของสายการประกอบลงได้ โดยเฉพาะอย่างยิ่งในกรณีที่เวลาดำเนินงานของบางขั้นงานมีค่าสูงกว่ารอบเวลาที่ต้องการของสายการประกอบ ในงานวิจัยนี้มีวัตถุประสงค์ในการแก้ปัญหาของจัดสมดุลสายการประกอบ 5 วัตถุประสงค์ ได้แก่ 1) ประสิทธิภาพของสายการประกอบมากที่สุด 2) ปริมาณการปล่อยฝุ่น PM2.5 จากหุ่นยนต์เฉลี่ยมีค่าน้อยที่สุด 3) ความแตกต่างของภาระงานเฉลี่ยระหว่างสถานีงานน้อยที่สุด 4) ค่าความแปรปรวนจากการใช้พลังงานของพนักงานน้อยที่สุด 5) มูลค่าภาษีที่สามารถประหยัดได้จากการจ้างงานคนพิการมากที่สุด ซึ่งถือเป็นปัญหาแบบเอ็นพีแบบยาก (NP-hard) ทำให้เป็นไปได้ยากที่จะได้คำตอบที่ดีที่สุด (Optimal Solution) ในระยะเวลาที่จำกัด ดังนั้นจึงจะประยุกต์ใช้อัลกอริทึมวิธีการเชิงวิวัฒนาการแบบมากวัตถุประสงค์ ที่ถูกจัดว่าเป็นเมตาฮิวริสติก (Metaheuristic) ในการแก้ปัญหา, พัฒนาคำตอบ และค้นหาค่าที่ดีที่สุดพร้อมๆกันไปของแต่ละวัตถุประสงค์ โดยอัลกอริทึมที่จะศึกษาและทำการเปรียบเทียบประสิทธิภาพในการแก้ปัญหาของงานวิจัยนี้คือ วิธีการเชิงวิวัฒนาการแบบหลายวัตถุประสงค์โดยยึดหลักการจำแนก (MOEA/D) และ วิธีเชิงพันธุกรรมแบบการจัดลำดับที่ไม่ถูกครอบงำ III (NSGA-III) จากผลการเปรีบยเทียบตัวชี้วัดสมรรถนะของงานวิจัยแสดงให้เห็นว่า NSGA-III มีสมรรถนะที่ดีเหนือกว่า MOEA/D ในเกือบทุกโจทย์ปัญหา
Methods For Weighting Decisions To Assist Modelers And Decision Analysts: A Review Of Ratio Assignment And Approximate Techniques, Barry Ezell, Christopher J. Lynch, Patrick T. Hester
Methods For Weighting Decisions To Assist Modelers And Decision Analysts: A Review Of Ratio Assignment And Approximate Techniques, Barry Ezell, Christopher J. Lynch, Patrick T. Hester
VMASC Publications
Computational models and simulations often involve representations of decision-making processes. Numerous methods exist for representing decision-making at varied resolution levels based on the objectives of the simulation and the desired level of fidelity for validation. Decision making relies on the type of decision and the criteria that is appropriate for making the decision; therefore, decision makers can reach unique decisions that meet their own needs given the same information. Accounting for personalized weighting scales can help to reflect a more realistic state for a modeled system. To this end, this article reviews and summarizes eight multi-criteria decision analysis (MCDA) techniques …
Fuzzy Cognitive Map-Based Knowledge Representation Of Hazardous Industrial Operations, Francesco Longo, Antonio Padovano, Letizia Nicoletti, Caterina Fusto, Mohaiad Elbasheer, Rafael Diaz
Fuzzy Cognitive Map-Based Knowledge Representation Of Hazardous Industrial Operations, Francesco Longo, Antonio Padovano, Letizia Nicoletti, Caterina Fusto, Mohaiad Elbasheer, Rafael Diaz
VMASC Publications
Hazardous industrial operations are highly stochastic, still human-dependent, and risky. Operators working in such an environment must understand the complex interrelation between several factors contributing to safe and effective operations. Therefore, being able to predict the effects of their actions on provoking or mitigating possible accidents is crucial. This study aims to utilize fuzzy cognitive maps (FCM) to model the expert’s reasoning about occupational health and safety (OHS) in confined space. This knowledge is used by operators to build their mental models. The developed FCM displays all the possible incidents of a confined space and links these incidents with all …
Human Factors, Ergonomics And Industry 4.0 In The Oil & Gas Industry: A Bibliometric Analysis, Francesco Longo, Antonio Padovano, Lucia Gazzaneo, Jessica Frangella, Rafael Diaz
Human Factors, Ergonomics And Industry 4.0 In The Oil & Gas Industry: A Bibliometric Analysis, Francesco Longo, Antonio Padovano, Lucia Gazzaneo, Jessica Frangella, Rafael Diaz
VMASC Publications
Over the last few years, the Human Factors and Ergonomics (HF/E) discipline has significantly benefited from new human-centric engineered digital solutions of the 4.0 industrial age. Technologies are creating new socio-technical interactions between human and machine that minimize the risk of design-induced human errors and have largely contributed to remarkable improvements in terms of process safety, productivity, quality, and workers’ well-being. However, despite the Oil&Gas (O&G) sector is one of the most hazardous environments where human error can have severe consequences, Industry 4.0 aspects are still scarcely integrated with HF/E. This paper calls for a holistic understanding of the changing …
Developing An Artificial Intelligence Framework To Assess Shipbuilding And Repair Sub-Tier Supply Chains Risk, Rafael Diaz, Katherine Smith, Beatriz Acero, Francesco Longo, Antonio Padovano
Developing An Artificial Intelligence Framework To Assess Shipbuilding And Repair Sub-Tier Supply Chains Risk, Rafael Diaz, Katherine Smith, Beatriz Acero, Francesco Longo, Antonio Padovano
VMASC Publications
The defense shipbuilding and repair industry is a labor-intensive sector that can be characterized by low-product volumes and high investments in which a large number of shared resources, technology, suppliers, and processes asynchronously converge into large construction projects. It is mainly organized by the execution of a complex combination of sequential and overlapping stages. While entities engaged in this large-scale endeavor are often knowledgeable about their first-tier suppliers, they usually do not have insight into the lower tiers suppliers. A sizable part of any supply chain disruption is attributable to instabilities in sub-tier suppliers. This research note conceptually delineates a …
Balancing Trade-Offs In One-Stage Production With Processing Time Uncertainty, Jingjing You
Balancing Trade-Offs In One-Stage Production With Processing Time Uncertainty, Jingjing You
Theses and Dissertations--Mechanical and Aerospace Engineering
Stochastic production scheduling faces three challenges, first the inconsistencies among key performance indicators (KPIs), second the trade-offs between the expected return and the risk for a portfolio of KPIs, and third the uncertainty in processing times. Based on two inconsistent KPIs of total completion time (TCT) and variance of completion times (VCT), we propose our trade-off balancing (ToB) heuristic for one-stage production scheduling. Through comprehensive case studies, we show that our ToB heuristic with preference =0.0:0.1:1.0 efficiently and effectively addresses the three challenges. Moreover, our trade-off balancing scheme can be generalized to balance a number of …
A Framework And Model For Managing And Sustaining A Successful Cross Functional Project Operations Team In A Multi-Project Manufacturing Environment In The Aerospace And Defense Industry, Anisulrahman Nizam
Electronic Theses and Dissertations, 2020-2023
Project manufacturing is a production manufacturing mode that develops and produces large and complex systems that is supplemented by project management techniques for planning and execution. Project manufacturing is better understood by examining it along with three other key areas: manufacturing, project management, and team management. Critical success factors for each of these areas have been examined in the literature but have not been examined in a real world setting in the aerospace and defense industry. This research examines the association between perspectives of project teams and senior management on critical success factors along the four identified dimensions of success …
A Transdisciplinary Analysis Of Just Transition Pathways To 100% Renewable Electricity, Adewale Aremu Adesanya
A Transdisciplinary Analysis Of Just Transition Pathways To 100% Renewable Electricity, Adewale Aremu Adesanya
Dissertations, Master's Theses and Master's Reports
The transition to using clean, affordable, and reliable electrical energy is critical for enhancing human opportunities and capabilities. In the United States, many states and localities are engaging in this transition despite the lack of ambitious federal policy support. This research builds on the theoretical framework of the multilevel perspective (MLP) of sociotechnical transitions as well as the concept of energy justice to investigate potential pathways to 100 percent renewable energy (RE) for electricity provision in the U.S. This research seeks to answer the question: what are the technical, policy, and perceptual pathways, barriers, and opportunities for just transition to …
Co2 Reduction Measures In The Aviation Industry: Current Measures And Outlook, Florian Mathys, P. Wild, J. Wang
Co2 Reduction Measures In The Aviation Industry: Current Measures And Outlook, Florian Mathys, P. Wild, J. Wang
International Journal of Aviation, Aeronautics, and Aerospace
This article gives a holistic overview of the current CO2 reduction measures and analyses the effectiveness of measures that are feasible for implementation in the future. To achieve the objectives of the Paris Agreement, the aviation industry needs to implement reduction measures because of its forecasted growth and contribution to global warming. The focus is set on CO2 reduction measures, categorized in technology, operations, infrastructure/air traffic management (ATM), and market-based measures. The most promising long-term technologies to reduce CO2 emissions are hydrogen-powered aircrafts and sustainable aviation fuels (SAF). In terms of operations, CO2 emissions can be …
Can Backward-Chained, Ab-Initio Pilot Training Decrease Time To First Solo?, Samuel M. Vance, Kat Gardner-Vandy, Jared Alan Freihoefer
Can Backward-Chained, Ab-Initio Pilot Training Decrease Time To First Solo?, Samuel M. Vance, Kat Gardner-Vandy, Jared Alan Freihoefer
Journal of Aviation/Aerospace Education & Research
Flight simulation has made progressively significant inroads into pilot training at all levels of a pilot’s career – typically starting with training for the Instrument rating in light aircraft and concluding with Type Certification in transport category jetliners. This research was designed to explore if significant training inroads could also be offered to ab-initio pilots, those with no prior flight experience. An experimental group of four pilot trainees, without prior flight experience, were exposed to flight in a backwards-chained simulation starting from 4’ AGL (Above Ground Level). Graduated, exponential increments of both altitude and distance from landing were successively added …
The Design, Development And Validation Of A Persuasive Content Generator, Sam Khataei, Michael J. Hine, Ali Arya
The Design, Development And Validation Of A Persuasive Content Generator, Sam Khataei, Michael J. Hine, Ali Arya
Journal of International Technology and Information Management
This paper addresses the automatic generation of persuasive content to influence users’ attitude and behaviour. Our research extends current approaches by leveraging individuals’ social media profiles and activity to personalize the persuasive content. Unlike most other implemented persuasive technology, our system is generic and can be adapted to any domain where collections of electronic text are available. Using the Yale Attitude Change approach, we describe: the multi-layered Pyramid of Individualization model; the design, development, and validation of integrated software that can generate individualized persuasive content based on a user’s social media profile and activity. Results indicate the proposed system can …
Wireless Mobile Phone Technology, Deregulation Policy, Competition And Economic Welfare In Nigeria’S Telecom Industry: An Analytic Model, Onochie J. Dieli Phd
Wireless Mobile Phone Technology, Deregulation Policy, Competition And Economic Welfare In Nigeria’S Telecom Industry: An Analytic Model, Onochie J. Dieli Phd
Journal of International Technology and Information Management
This analytic model is about the Nigerian telecom industry’s structural change caused by the arrival of a new wireless mobile phone technology. Nigeria’s telecom industry transformed from natural monopoly to competitive market as a result of deregulation that occurred in 1999. Under the price regulation using underground or above the ground cable telephone lines, it could run only with the help of government subsidies. This study argues that the arrival of a new telecomm technology was the key to success of Nigeria’s deregulation of its telecom industry. An analysis of a simple microeconomic model shows that with the new wireless …
Determining Critical Success Factors For Realizing Innovative It Solutions In Higher Education, Anton Meijer
Determining Critical Success Factors For Realizing Innovative It Solutions In Higher Education, Anton Meijer
Journal of International Technology and Information Management
There is much research on Critical Success Factors when implementing novel IT solutions in different industries and contexts. However, for the domain of higher education the amount of studies is limited. This is partially due to the fact that what is considered higher education is different across countries. Universities, Universities of Applied Science, Vocational Universities, Polytechnics and related (research) institutes both have similarities and differences. However, one commonality is that institutions in higher education are not sufficiently capable of supporting the development(s) and requirements of educational processes with adequate (innovative) IT. Therefore the purpose of this study is to determine …
Table Of Contents Jitim Vol 29 Issue 4
Table Of Contents Jitim Vol 29 Issue 4
Journal of International Technology and Information Management
table of contents
Integrating Voice Over Ip Solution In Ipv6 And Ipv4 Networks To Increase Employee Productivity: A Case Study Of Cameroon Telecommunications (Camtel), North-West, Lottin Cyrille Marcel Malobe, Austin Oguejiofor Amaechi
Integrating Voice Over Ip Solution In Ipv6 And Ipv4 Networks To Increase Employee Productivity: A Case Study Of Cameroon Telecommunications (Camtel), North-West, Lottin Cyrille Marcel Malobe, Austin Oguejiofor Amaechi
Journal of International Technology and Information Management
Telecommunications organizations have to follow the rapid innovation of technology if they want to face challenges raised by competition. The challenge to respond to the huge market demand of updated products and services from customers requires that the organization‘s working environment be equipped with tools and communication facilities that contribute to ameliorating productivity. Cameroon Telecommunications (Camtel) is facing a digital telephony and Internet Protocol strategic management challenge. Successful implementation cannot be achieved if the employees are still depending on the ageing public switched telephone network (PSTN) as their primary communication system, despite the frequent loss of dial tone experience in …
Table Of Contents Jitim Vol 30 Issue 2, 2021
Table Of Contents Jitim Vol 30 Issue 2, 2021
Journal of International Technology and Information Management
Table of Contents JITIM volume 30 issue 2
Overcoming The Downsides Of Personal Internet And Cell Phone Use In The Workplace: An Exploratory Empirical Analysis, Kaustav Misra, Michael D. Stackhouse, Arundhati Bagchi Misra, Gregory Berry
Overcoming The Downsides Of Personal Internet And Cell Phone Use In The Workplace: An Exploratory Empirical Analysis, Kaustav Misra, Michael D. Stackhouse, Arundhati Bagchi Misra, Gregory Berry
Journal of International Technology and Information Management
The now taken-for-granted introduction of internet usage into the workplace changed the dynamics of work, productivity, and management, and this is now further complicated by the ubiquitous availability of personal cell phones, going beyond company supplied and (partially) controlled computers with internet connections. This paper studies the connection between internet and cell phone usage by employees and firm productivity. Using primary data collected via a self-reported survey, we conduct an empirical analysis utilizing information based on firm and industry characteristics. Results indicate that the level of non-work-related internet and cell phone usage is significantly associated with firm productivity. Some of …
An Analysis Of Covid-19 Vaccine Allergic Reactions, Robert Schumaker, Michael Veronin, Trevor Rohm, Rohit Dixit, Shadi Aljawarneh, Juan Lara
An Analysis Of Covid-19 Vaccine Allergic Reactions, Robert Schumaker, Michael Veronin, Trevor Rohm, Rohit Dixit, Shadi Aljawarneh, Juan Lara
Journal of International Technology and Information Management
From our study, all three covid-19 vaccines have a similar proportion of adverse reaction reports in which the patient had a history of allergies. However, the proportion of life-threatening outcomes were lower for those with the Janssen vaccine (0.62% hospitalization rate for Janssen versus 2.59% for Pfizer and 0.60% death for Janssen versus 5.15% for Moderna). In terms of specific allergies, patients with *cillin or sulfa allergies had the most adverse reactions to covid-19 vaccines, however, Janssen again had the lowest percentage of reported deaths (1.39% for *cillin-related allergy deaths for Janssen versus 6.10% for Pfizer). In terms of patient …
The Soft Skills Business Demands Of The Chief Information Security Officer, Richard Smit, Jeroen Van Yperen Hagedoorn, Patric Versteeg, Pascal Ravesteijn
The Soft Skills Business Demands Of The Chief Information Security Officer, Richard Smit, Jeroen Van Yperen Hagedoorn, Patric Versteeg, Pascal Ravesteijn
Journal of International Technology and Information Management
While many researchers have investigated soft skills for different roles related to business, engineering, healthcare and others, the soft skills needed by the chief information security officer (CISO) in a leadership position are not studied in-depth. This paper describes a first study aimed at filling this gap.
In this multimethod research, both the business leaders perspective as well as an analysis of CISO job ads is studied. The methodology used to capture the business leaders perspective is via a Delphi study and the jobs adds are studied using a quantitative content analysis.
With an increasing threat to information security for …
Icts For Surveillance And Suppression: The Case Of The Indian Emergency 1975-1977, Ramesh Subramanian
Icts For Surveillance And Suppression: The Case Of The Indian Emergency 1975-1977, Ramesh Subramanian
Journal of International Technology and Information Management
Information and Communications technologies (ICT) pervade society. The Internet, wireless communication, and social media are ubiquitous in and indispensable in society today. As they continue to grow and mushroom, there are new and increased calls from various segments of the society such as technologists, activists, sociologists, and legal experts, who issue warnings on the more nefarious and undesirable uses of ICTs, especially by governments. In fact, government control and surveillance using ICTs is not a new phenomenon. By looking at history, we are able to see several instances when ICTs have been used by governments to control, surveil, and infringe …
How Digital Leadership Competences And It Capabilities Affect An Organization's Ability To Digitally Transform And Adopt New Technologies, Melissa Brunner, Gabriel Gonzalez-Castañé, Pascal Ravesteijn
How Digital Leadership Competences And It Capabilities Affect An Organization's Ability To Digitally Transform And Adopt New Technologies, Melissa Brunner, Gabriel Gonzalez-Castañé, Pascal Ravesteijn
Journal of International Technology and Information Management
Although much research has been done into the importance of IT Capabilities (ITC), Digital Leadership (DL) and Digital Transformation (DT) with regard to organizations’ firm performance and ability to thrive in the current digital market, there is little research on qualifying which specific ITC and DL competences affect the success of an organization's DT and ultimately impact their ability to adopt newly emerging technologies. This research aims to address the influence of DL and ITC on DT as well as which specific DL competences and ITC might ultimately affect an organization’s ability to successfully adopt newly emerging digital technologies. Quantitative …
Innovativeness To Enlarge Digital Readiness - How To Avoid Digital Inertia?, Paul Morsch
Innovativeness To Enlarge Digital Readiness - How To Avoid Digital Inertia?, Paul Morsch
Journal of International Technology and Information Management
Technological developments go fast and are interrelated and multi-interpretable. As consumer needs change, the technological possibilities to meet those needs are constantly evolving and new technology providers introduce new disruptive business models. This makes it difficult to predict what the world of tomorrow will look like for an organization and that makes the risks for organizations substantial. In this context, it is difficult for organizations to determine what constitutes a good strategy to adopt digital developments.
This paper describes a first step of a study with the objective to design a method for organizations to formulate a future-proof strategy in …
Analyzing Social Media Implementation In Hospitals In The U.S. Midwest Region, Dalsang Chung, C. Christopher Lee, David Hwang
Analyzing Social Media Implementation In Hospitals In The U.S. Midwest Region, Dalsang Chung, C. Christopher Lee, David Hwang
Journal of International Technology and Information Management
The purpose of this research is to explore to what scale hospitals are adopting social media and implementing it in accordance with hospital characteristics. We reviewed hospitals’ social media activities on social networking sites such Facebook, Twitter, Instagram, and YouTube. We studied the 912 hospitals in the Midwest region reported in the 2015 American Hospital Association Annual Survey dataset. We reviewed each hospital’s social-networking page to understand the scale of social media adoption relative to the hospital’s characteristics such as bed count, state, ownership type (control), and specialty (service). We also considered whether the hospital is in a network and …
Exploring The Behavioral Intention To Use Collaborative Commerce: A Case Of Uber, C. Christopher Lee, Sinéad Ruane, Hyoun Sook Lim, Ruoquing Zhang, Heechang Shin
Exploring The Behavioral Intention To Use Collaborative Commerce: A Case Of Uber, C. Christopher Lee, Sinéad Ruane, Hyoun Sook Lim, Ruoquing Zhang, Heechang Shin
Journal of International Technology and Information Management
The goal of our research study is to develop a hybrid instrument built on the revised Unified Theory of Acceptance and Use of Technology (UTAUT2) framework, which is reliable in predicting the behavioral intention to use the Uber ridesharing app. It focuses on extending the UTAUT2 in collaborative consumption, particularly from a consumer and ridesharing-app perspective. Our proposed framework, UTAUT-CC, preserves existing UTAUT2 constructs – performance expectancy, effort expectancy, social expectancy, and facilitating conditions. It also retains demographic moderating variables of age and gender, while maintaining some of the key integral relationships depicted in those models. We integrated three new …
Table Of Contents Jitim Vol 30 Issue 1, 2021
Table Of Contents Jitim Vol 30 Issue 1, 2021
Journal of International Technology and Information Management
Table of Content
Conference Proceedings Of The 32nd Annual Iima Conference
Conference Proceedings Of The 32nd Annual Iima Conference
Journal of International Technology and Information Management
Conference Proceedings of the 32nd Annual IIMA Conference
การปรับปรุงประสิทธิภาพพลังงานโดยการจัดตารางในการจ่ายน้ำมันของคลังน้ำมันแห่งหนึ่ง, ศุภณัฐ สีทา
การปรับปรุงประสิทธิภาพพลังงานโดยการจัดตารางในการจ่ายน้ำมันของคลังน้ำมันแห่งหนึ่ง, ศุภณัฐ สีทา
Chulalongkorn University Theses and Dissertations (Chula ETD)
งานวิจัยนี้นำเสนอการปรับปรุงประสิทธิภาพพลังงานโดยการจัดตารางการเติมน้ำมันให้กับรถบรรทุกน้ำมันที่เข้ามารับน้ำมันในคลังน้ำมันกรณีศึกษา โดยการจัดตารางการรับน้ำมันจะคำนึงถึงความสำคัญของปั๊มมากกว่าคำสั่งซื้อน้ำมัน และคำสั่งซื้อที่ถูกจัดตารางเป็นคำสั่งซื้อที่สามารถรับน้ำมันได้หลายชนิดในเวลาเดียวกัน ประกอบกับการใช้งานปั๊มที่ปั๊มแต่ละตัวสามารถจ่ายน้ำมันให้กับรถบรรทุกน้ำมัน 2-5 คันพร้อม ๆ กัน ซึ่งกระบวนการจัดตารางจะเป็นแบบฮิวริสติกพลวัต (Dynamic Heuristic) โดยอาศัยกฎ Least Operation Remaining และ Largest Total Processing Time ในการจัดลำดับความสำคัญของใบคำสั่งซื้อ และการจัดตารางเวลาที่คำนึงถึงจำนวนหัวจ่ายที่ถูกใช้งาน งานที่เหลืออยู่ในระบบ และการใช้พลังงานของปั๊มที่เปลี่ยนแปลงตามเวลา จากการจัดตารางด้วยฮิวริสติกพลวัตทั้งหมด 6 วิธี พบว่าค่าพลังงานที่ใช้ต่อปริมาณน้ำมัน 1 ลิตรลดลงร้อยละ 42 จากการใช้พลังงานเฉลี่ยเดิม 0.42 วัตต์ชั่วโมงต่อลิตร เหลือเพียง 0.24 วัตต์ชั่วโมงต่อลิตร มีผลให้ประหยัดค่าใช้จ่ายด้านพลังงานเฉลี่ยของปั๊มเป็นจำนวนเงิน 199,006.25 บาทต่อเดือน ทั้งนี้การจัดตารางดังกล่าวดำเนินการภายใต้กระบวนการจัดตารางที่รู้จำนวนงานล่วงหน้า ไม่มีการเปลี่ยนแปลงจำนวนงานระหว่างการจัดตาราง ที่ถูกออกแบบโดยการคำนึงถึงลักษณะทางกายภาพของคลังน้ำมันเป็นหลัก