scholarly journals DEVELOPMENT METHOD FOR REQUIREMENT COLLECTIVES OF HYDROGEN REFUELLING STATIONS

2021 ◽  
Vol 1 ◽  
pp. 1233-1242
Author(s):  
David Schneider ◽  
Tobias Huth ◽  
Bastian Nolte ◽  
Thomas Vietor ◽  
Steffen Heinke ◽  
...  
Keyword(s):  
Thermal Management ◽  
Influencing Factors ◽  
Research Effort ◽  
Point Of View ◽  
Core Element ◽  
Tool Chain ◽  
Development Method ◽  
Filling Station ◽  
Life Phase ◽  
Hydrogen Technology

AbstractIn addition to the development and research of battery-driven vehicles, a high research effort in the field of hydrogen technology can currently be observed. Various research and strategy initiatives relating to hydrogen are being initiated and pursued with considerable commitment worldwide. A significant expansion of the hydrogen filling station network is also being sought in Germany. In the course of designing a hydrogen refuelling station, the paradigms of thermal management must be taken into account in addition to a large number of different environmental and life phase-induced influencing factors. The interactions between influencing factors, requirements and the system architecture result in a multitude of possible refuelling station concepts, which can hardly be surveyed or managed from an organisational point of view. This publication introduces a method for the development of descriptive requirement collectives, which is applied to hydrogen refuelling stations in the framework of THEWA, but can also be adapted for other technical systems. The requirement collective is the first core element of the THEWA tool chain that enables a requirement-oriented and fast design of hydrogen refuelling stations.

Heat Transfer and Thermal Stress Analysis of an Optoelectronic Package

1991 ◽  
Vol 113 (3) ◽  
pp. 258-262 ◽  
Author(s):  
J. G. Stack ◽  
M. S. Acarlar
Keyword(s):  
Heat Transfer ◽  
Thermal Management ◽  
Power Dissipation ◽  
Point Of View ◽  
Optical Data ◽  
Data Link ◽  
Element Analysis ◽  
Thermally Induced ◽  
Temperature Changes ◽  
Induced Stresses

The reliability and life of an Optical Data Link transmitter are inversely related to the temperature of the LED. It is therefore critical to have efficient packaging from the point of view of thermal management. For the ODL® 200H devices, it is also necessary to ensure that all package seals remain hermetic throughout the stringent military temperature range requirements of −65 to +150°C. For these devices, finite element analysis was used to study both the thermal paths due to LED power dissipation and the thermally induced stresses in the hermetic joints due to ambient temperature changes

Photometric Normalization Techniques for Illumination Invariance

2010 ◽  
pp. 279-300 ◽  
Author(s):  
Vitomir Štruc ◽  
Vitomir Štruc ◽  
Nikola Pavešic ◽  
Nikola Pavešic
Keyword(s):  
Face Recognition ◽  
Research Effort ◽  
Histogram Equalization ◽  
Point Of View ◽  
Illumination Variation ◽  
Variation Problem ◽  
Total Variation Model ◽  
The World ◽  
The Impact ◽  
Anisotropic Smoothing

Face recognition technology has come a long way since its beginnings in the previous century. Due to its countless application possibilities, it has attracted the interest of research groups from universities and companies around the world. Thanks to this enormous research effort, the recognition rates achievable with the state-of-the-art face recognition technology are steadily growing, even though some issues still pose major challenges to the technology. Amongst these challenges, coping with illumination-induced appearance variations is one of the biggest and still not satisfactorily solved. A number of techniques have been proposed in the literature to cope with the impact of illumination ranging from simple image enhancement techniques, such as histogram equalization, to more elaborate methods, such as anisotropic smoothing or the logarithmic total variation model. This chapter presents an overview of the most popular and efficient normalization techniques that try to solve the illumination variation problem at the preprocessing level. It assesses the techniques on the YaleB and XM2VTS databases and explores their strengths and weaknesses from the theoretical and implementation point of view.

Factors Affecting Mobile Advertising

2010 ◽  
pp. 58-76 ◽  
Author(s):  
Ramin Vatanparast
Keyword(s):  
Conceptual Model ◽  
Influencing Factors ◽  
Direct Marketing ◽  
Point Of View ◽  
Mobile Advertising ◽  
Comprehensive Understanding ◽  
Holistic View ◽  
Factors Affecting ◽  
Targeted Advertising ◽  
Novel Approach

Mobile advertising holds strong promises to become the most highly targeted advertising medium offering new ways to target messages to users. By utilizing mobile advertising, companies can run marketing campaigns targeted to tens of thousands of people with a fraction of the costs and time in comparison to other direct marketing mediums. However, as mobile advertising is a novel approach, many aspects of it still need further investigation. Little is known regarding the effectiveness of mobile advertising campaigns and the factors contributing to their success. This chapter aims to provide a comprehensive understanding of the advertising space and its influencing factors. First, the study investigates factors that influence mobile advertising from both the industry’s and consumer’s point of view. Second, based on a review of previous studies in the field, the author proposes a conceptual model for mobile advertising, which categorizes the factors in different groups and provides a holistic view of their impact in the mobile advertising space.

Mechanical System Modelling Using Physics-Based and Data-Based Subsystems

2020 ◽  
Author(s):  
Siamak Arbatani ◽  
József Kövecses
Keyword(s):  
Mechanical System ◽  
Interaction Force ◽  
Point Of View ◽  
Training Data ◽  
System Modelling ◽  
Core Element ◽  
Interaction Forces ◽  
Force Systems ◽  
Using Data ◽  
Novel Concept

Abstract Mechanical systems have been traditionally represented using parametric physics-based models. In this work, we introduce a novel concept, in this part of the mechanical system is represented using data-based subsystem models, and the overall mechanical system model is composed of these data-based and other, physics-based subsystems. A core element is the interfacing of the subsystems, which gives rise to interaction forces. The interfacing problem is formulated in a way that makes it possible to give a general representation to the interaction forces. We demonstrate that from the point of view of the physics-based subsystems the important element is that the data-based models can represent the interaction force systems properly. The data-based subsystems are developed using deep recurrent neural networks, and the training data is generated based on simulations using the fully parametric physics-based model of the system. Such training data could also be obtained through physical experimentation.

scholarly journals Study of Bridge Demolition DOT Survey and Available Standard Specifications

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Nazanin Rezaei ◽  
David Garber
Keyword(s):  
Research Effort ◽  
National Level ◽  
The United States ◽  
Point Of View ◽  
Accelerated Bridge Construction ◽  
Limited Information ◽  
Bridge Design ◽  
Bridge Construction ◽  
Aashto Lrfd ◽  
Departments Of Transportation

There are many damaged bridges in the United States which are either structurally deficient or functionally obsolete and require replacement or rehabilitation, many using accelerated bridge construction (ABC) techniques. Before a bridge is replaced or rehabilitated, the old structure or component needs to first be demolished. Although the AASHTO LRFD Bridge Design Specification presents minimum bridge design requirements, there is limited information about bridge demolition available for designers and contractors in this field. More study is required to determine best practices in demolition administration and avoid further unintentional events. This study presents the results from a survey prepared and disseminated through a research effort under the Accelerated Bridge Construction University Transportation Center (ABC-UTC). This survey was sent out to all State Departments of Transportation (DOTs). The results of the survey reveal the need for additional guidance in bridge demolition administrations at a national level. According to the results of this study, contractors are the most important part of bridge demolition projects from injuries, fatalities, and responsibility point of view.

scholarly journals The role of corporate branding in Serbian mobile phone operator market

2009 ◽  
Vol 3 (5-6) ◽  
Author(s):  
Gajo Vanka
Keyword(s):  
Mobile Phone ◽  
Influencing Factors ◽  
Corporate Branding ◽  
Point Of View ◽  
Mobile Telephone ◽  
Mobile Phone Network

This research is carried out to know the role of corporate branding in mobile phone network along with different influencing factors involved in the purchase of mobile telephone connections. This thesis discusses corporate branding from consumer’s point of view that how much they value it and what type of role it has.  

scholarly journals PENGELUARAN KONSUMSI MASYARAKAT: DARI TEORI SAMPAI DENGAN EMPIRIS

2007 ◽  
Vol 2 (1) ◽  
pp. 71
Author(s):  
Yunastiti Purwaningsih
Keyword(s):  
Influencing Factors ◽  
Household Consumption ◽  
Household Behavior ◽  
Point Of View ◽  
Individual Decision ◽  
Research Results ◽  
Consumption Decisions ◽  
Consumption Data ◽  
Empirical Point

The household behavior in deciding consumption expense and revenue which will be saved is individual decision in microeconomic scope, but this behavior aggregately contains macroeconomic consequence. Household consumption decisions influence on the whole behaviors, either in long or short term.This writing is a study on consumption expense from theoretical to empirical point of view. The discussion is begun with consumption theories, influencing factors, and research results or consumption data as empirical discussion.

scholarly journals Considerations when Modelling EV Battery Circularity Systems

Batteries ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 40 ◽  
Author(s):  
Martin Kurdve ◽  
Mats Zackrisson ◽  
Mats I. Johansson ◽  
Burcak Ebin ◽  
Ulrika Harlin
Keyword(s):  
Influencing Factors ◽  
Automotive Industry ◽  
Raw Material ◽  
Environmental Footprint ◽  
Technological Factors ◽  
Life Phase ◽  
Recycling Systems ◽  
And Performance ◽  
Political Economic ◽  
Vehicle Market

The electric vehicle market is expected to grow substantially in the coming years, which puts new requirements on the end-of-life phase and on the recycling systems. To a larger extent, the environmental footprint from these vehicles is related to raw material extraction and production, and, consequently, a material- and energy-efficient 3R system (reuse, remanufacturing, recycling) is urgently needed. The ability to understand and model the design and development of such a system therefore becomes important. This study contributes to this by identifying factors that affect 3R system design and performance, relating these factors to the various actors and processes of the system and categorising them according to time from implementation to impact. The above is achieved by applying a PEST analysis (political, economic, social and technological factors), differentiating between political, economic, social and technological factors. Data were gathered from literature, by interviews and by a number of workshops in the automotive industry and the 3R system and observations at meetings, etc. The study confirms some previous results on how vehicle battery 3R systems work and adds knowledge about the influencing factors, especially the timeframes and dynamics of the system, necessary for modelling the system and the influencing factors. For practitioners, the results indicate how to use appropriate models and which factors are most relevant to them.

scholarly journals Consumers’ Intention and Cognition for Low-Carbon Behavior: A Case Study of Hangzhou in China

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5830
Author(s):  
Yongliang Yang ◽  
Yiyang Guo ◽  
Suqing Luo
Keyword(s):  
Global Warming ◽  
Influencing Factors ◽  
Questionnaire Survey ◽  
Positive Impact ◽  
Point Of View ◽  
Urban Residents ◽  
Low Carbon ◽  
Carbon Consumption ◽  
Consumption Behavior

The influencing factors of the low-carbon consumption behavior of urban residents have become popular. This paper explored the factors of consumers’ low-carbon behavior through a questionnaire survey. Using Hangzhou as a case study city, which yields 786 valid responses, the results indicated that urban consumers generally had a high perception of low-carbon behavior. At the same time, low-carbon cognition and low-carbon intention had a positive impact on residents’ low-carbon behavior. In particular, the level of awareness of global warming adjusted residents’ understanding of low-carbon behavior. From a policy point of view, this research contributes to insights into the promotion of guiding residents’ low-carbon behavior and improving the response to global warming.

A Study on the Feasibility of Promoting the Functions of Traditional Schools in Line With the Implementation of Smart Schools in Iran

2017 ◽  
Vol 8 (4) ◽  
pp. 15-24
Author(s):  
Hasani Jafari Fatane ◽  
Khoshneshin Zohreh ◽  
Annamaria Curatola
Keyword(s):  
Sampling Method ◽  
Research Effort ◽  
Modern Technology ◽  
Point Of View ◽  
Traditional Schools ◽  
Knowledge And Skills ◽  
Ict Implementation ◽  
Research Findings ◽  
Iranian Government ◽  
Large Research

This article describes how today's traditional Iranian schools need to be reorganized to comply with the requirements established in the knowledge and communication fields, based on modern societies, because they are part of an increasingly globalised and complex world. Since 2010, this has been important because the Iranian Government required schools to become “smart,” with particular attention given to the knowledge and the skills that come from using modern technology, such as computers and the internet. Because of this there has been a large research effort promoting and monitoring the approach of schools to ICT. In this article, the results of one of the researches carried out in Karaj (the second biggest city in Iran) are reported. This research investigated the availability of ICT structures through a survey on the point of view of teachers and headmasters. The random sampling method regarded 300 teachers and 20 headmasters to whom two sets of questionnaires were given in order to verify and collect their opinions on the different aspects of ICT implementation. The reliability of these questionnaires has been evaluated by Cronbach's alpha (0/87). The research findings have clearly shown that in Karaj the teachers' knowledge and skills of integrating information technology in everyday teaching are at intermediate level, while infrastructures and equipment considered essential for the implementation of smart schools are at a low level.

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