Sample records for mobile electronic commerce

  1. Research on mobile electronic commerce security technology based on WPKI

    NASA Astrophysics Data System (ADS)

    Zhang, Bo

    2013-07-01

    Through the in-depth study on the existing mobile e-commerce and WAP protocols, this paper presents a security solution of e-commerce system based on WPKI, and describes its implementation process and specific implementation details. This solution uniformly distributes the key used by the various participating entities , to fully ensure the confidentiality, authentication, fairness and integrity of mobile e-commerce payments, therefore has some pract ical value for improving the security of e-commerce system.

  2. Investigating the Identity Theft Prevention Strategies in M-Commerce

    ERIC Educational Resources Information Center

    Shah, Mahmood Hussain; Ahmed, Javed; Soomro, Zahoor Ahmed

    2016-01-01

    Mobile commerce has provided extended business opportunities for online organisations and made it easier for customers to purchase products on-line from anywhere at any time. However, there are several risks associated with it, especially the identity theft. Online organisations commonly use electronic commerce approaches; however, these have some…

  3. 75 FR 4343 - Foreign-Trade Zone 22-Chicago, IL; Application for Manufacturing Authority; LG Electronics...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket 3-2010] Foreign-Trade Zone 22--Chicago, IL; Application for Manufacturing Authority; LG Electronics MobileComm USA, Inc. (Cell Phone Kitting... authority on behalf of LG Electronics MobileComm USA, Inc. (LGEMU), located in Bolingbrook, Illinois. The...

  4. 75 FR 4344 - Foreign-Trade Zone 22-Chicago, IL Application for Temporary/Interim Manufacturing Authority LG...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket T-1-2010] Foreign-Trade Zone 22--Chicago, IL Application for Temporary/ Interim Manufacturing Authority LG Electronics MobileComm USA, Inc... Electronics MobileComm USA, Inc. (LGEMU) facility, located in Bolingbrook, Illinois. The application was filed...

  5. Security of Mobile Agents on the Internet.

    ERIC Educational Resources Information Center

    Corradi, Antonio; Montanari, Rebecca; Stefanelli, Cesare

    2001-01-01

    Discussion of the Internet focuses on new programming paradigms based on mobile agents. Considers the security issues associated with mobile agents and proposes a security architecture composed of a wide set of services and components capable of adapting to a variety of applications, particularly electronic commerce. (Author/LRW)

  6. Mobile Internet Revenues: An Empirical Study of the I-Mode Portal.

    ERIC Educational Resources Information Center

    Jonason, Andreas; Eliasson, Gunnar

    2001-01-01

    Discusses new electronic commerce applications enabled by mobility and personalization over mobile devices; considers the convergence of the wireless, the fixed Internet, and the media industries; describes innovative pricing models; and reports results from a survey of users of I-mode, a wireless Internet service offering Web browsing and email…

  7. Towards an Understanding of Mobile Website Contextual Usability and Its Impact on Mobile Commerce

    ERIC Educational Resources Information Center

    Hyman, Jack Alan

    2012-01-01

    An increasing number of technologies and applications have begun to focus on mobile computing and the wireless Web as a way to conduct commerce-oriented transactions. M-commerce Websites that are usability friendly must emphasize information quality, system quality, and service quality, as these are proxy measures to mobile commerce user…

  8. Campus Computing Looks Ahead: Tracking the Digital Puck.

    ERIC Educational Resources Information Center

    Green, Kenneth C.

    2002-01-01

    Examines data from the 2002 Campus Computing Survey to determine trends in information technology in higher education and future possibilities. Discusses Web portals; electronic commerce capabilities, including use of credit cards; budget challenges, including budget cuts; and mobile technology and wireless networks. (LRW)

  9. Business Applications of WAP.

    ERIC Educational Resources Information Center

    van Steenderen, Margaret

    2002-01-01

    Explains the development of WAP (wireless application protocol), how it works, and what the major advantages and disadvantages are, especially when applied to the use of information. Topics include standardization; mobile communications; the effect of WAP on business tools, electronic commerce, and information services; consumers; corporate users;…

  10. Introducing an M-Commerce Course into the Business Management Curriculum: Experiences and Recommendations

    ERIC Educational Resources Information Center

    Nandi, Santosh; Nandi, Madhavi L.

    2015-01-01

    Mobility has become an important extension to the business strategies of present-day organizations. Thus, organizations are increasingly seeking managers with knowledge of value chain related to mobile-oriented business activities, usually referred to as mobile commerce (m-commerce). Accordingly, business management schools are interesting in…

  11. ENcentive: A Framework for Intelligent Marketing in Mobile Peer-To-Peer Environments

    DTIC Science & Technology

    2005-01-01

    trade and commu- nication strategies, mobile electronic marketing, intelligent agents, collaborative eCommerce 1. INTRODUCTION With the explosion of...requests the promotion (since Jeff is a cof- fee drinker). MH2 signs the promotion with Susan’s eN- centive ID. At 6pm, Jeff decides to take advantage of the...to become valid, a user has a choice of remaining in his current loca- tion and being able to take advantage of the promotion. The eNcentive Ad

  12. 78 FR 13325 - Proposed Information Collection; Comment Request; Research on Evacuating Persons With Mobility...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-27

    ... DEPARTMENT OF COMMERCE National Institute of Standards and Technology Proposed Information... Institute of Standards and Technology (NIST), Commerce. ACTION: Notice. SUMMARY: The Department of Commerce... how building occupants with mobility impairments currently evacuate multi-story buildings in the...

  13. GSM-PKI solution enabling secure mobile communications.

    PubMed

    Jelekäinen, Pekka

    2004-03-31

    Because of its wide distribution and ease of use, the mobile phone, as a reliable personal communications channel, offers an excellent basis for the provision of reliable electronic communications services. In Finland, ca. 75% of the citizens have a mobile phone and, at present and most likely also in the future, it is the most widely spread service channel allowing reliable electronic communications. Despite the restricted functions of the mobile phone, the citizens can use the phone also as a communications medium. In 2001, the Finns sent over 1 billion SMS messages. In Finland, TeliaSonera Finland Oyi and the Population Register Centre (PRC) have closed a co-operation agreement with the aim of creating a mobile phone service for the electronic identification of a person. The co-operation launched is a significant development project from the perspective of the citizens. As a result, the consumers will have a new alternative for reliable electronic communications and commerce in data networks in addition to the electronic identification card. In the future, it will be possible to use the services of both public administration and the private sector by means of a mobile phone more reliably than before, without a physical visit, e.g. to a health centre or to another provider of healthcare services. The possibility of identification and signature by a mobile phone allows an easier provision of versatile services irrespective of time and place, because, in addition to voice, text message, and WAP functions, the service can be utilised also in communications services through the Internet, in which case, the mobile phone acts like a card reader. From the perspective of reliable personal mobile communications, the healthcare sector is one of the most significant and challenging application areas.

  14. The electronic-commerce-oriented virtual merchandise model

    NASA Astrophysics Data System (ADS)

    Fang, Xiaocui; Lu, Dongming

    2004-03-01

    Electronic commerce has been the trend of commerce activities. Providing with Virtual Reality interface, electronic commerce has better expressing capacity and interaction means. But most of the applications of virtual reality technology in EC, 3D model is only the appearance description of merchandises. There is almost no information concerned with commerce information and interaction information. This resulted in disjunction of virtual model and commerce information. So we present Electronic Commerce oriented Virtual Merchandise Model (ECVMM), which combined a model with commerce information, interaction information and figure information of virtual merchandise. ECVMM with abundant information provides better support to information obtainment and communication in electronic commerce.

  15. Security Analysis of Yeh-Tsai Security Mechanism

    NASA Astrophysics Data System (ADS)

    Yum, Dae Hyun; Shin, Jong Hoon; Lee, Pil Joong

    Yeh and Tsai recently proposed an enhanced mobile commerce security mechanism. They modified the lightweight security mechanism due to Lam, Chung, Gu, and Sun to relieve the burden of mobile clients. However, this article shows that a malicious WAP gateway can successfully obtain the mobile client's PIN by sending a fake public key of a mobile commerce server and exploiting information leakage caused by addition operation. We also present a countermeasure against the proposed attack.

  16. User acceptance of mobile commerce: an empirical study in Macau

    NASA Astrophysics Data System (ADS)

    Lai, Ivan K. W.; Lai, Donny C. F.

    2014-06-01

    This study aims to examine the positive and negative factors that can significantly explain user acceptance of mobile commerce (m-commerce) in Macau. A technology acceptance model for m-commerce with five factors is constructed. The proposed model is tested using data collected from 219 respondents. Confirmatory factor analysis is performed to examine the reliability and validity of the model, and structural equation modelling is performed to access the relationship between behaviour intention and each factor. The acceptance of m-commerce is influenced by factors including performance expectancy, social influence, facilitating conditions and privacy concern; while effort expectancy is insignificant in this case. The results of the study are useful for m-commerce service providers to adjust their strategies for promoting m-commerce services. This study contributes to the practice by providing a user technology acceptance model for m-commerce that can be used as a foundation for future research.

  17. Portfolio Purchasing Decision for Mobile Power Equipment of B2C E-Commerce Export Retailer Based on CVaR

    NASA Astrophysics Data System (ADS)

    Yanchun, Wan; Qiucen, Chen

    2017-11-01

    Purchasing is an important part of export e-commerce of B2C, which plays an important role on risk and cost control in supply management. From the perspective of risk control, the paper construct a CVaR model for portfolio purchase. We select a heavy sales mobile power equipment from a typical B2C e-commerce export retailer as study sample. This study optimizes the purchasing strategy of this type of mobile power equipment. The research has some reference for similar enterprises in purchasing portfolio decision.

  18. Dynamic Transportation Navigation

    NASA Astrophysics Data System (ADS)

    Meng, Xiaofeng; Chen, Jidong

    Miniaturization of computing devices, and advances in wireless communication and sensor technology are some of the forces that are propagating computing from the stationary desktop to the mobile outdoors. Some important classes of new applications that will be enabled by this revolutionary development include intelligent traffic management, location-based services, tourist services, mobile electronic commerce, and digital battlefield. Some existing application classes that will benefit from the development include transportation and air traffic control, weather forecasting, emergency response, mobile resource management, and mobile workforce. Location management, i.e., the management of transient location information, is an enabling technology for all these applications. In this chapter, we present the applications of moving objects management and their functionalities, in particular, the application of dynamic traffic navigation, which is a challenge due to the highly variable traffic state and the requirement of fast, on-line computations.

  19. Electronic Commerce: A National Performance Review Initiative.

    DTIC Science & Technology

    1995-09-01

    This study of the National Information Infrastructure (NII) was conducted as part of IDA’s Central Research Program. Electronic commerce is one of... commerce is nothing more than conducting business via electronic means. An outgrowth of the NPR, the electronic commerce initiative, commits the...private, and public sectors are committed to implementing electronic commerce throughout the United States. The objective ol this paper is to enhance

  20. Reinforcement Learning Based Web Service Compositions for Mobile Business

    NASA Astrophysics Data System (ADS)

    Zhou, Juan; Chen, Shouming

    In this paper, we propose a new solution to Reactive Web Service Composition, via molding with Reinforcement Learning, and introducing modified (alterable) QoS variables into the model as elements in the Markov Decision Process tuple. Moreover, we give an example of Reactive-WSC-based mobile banking, to demonstrate the intrinsic capability of the solution in question of obtaining the optimized service composition, characterized by (alterable) target QoS variable sets with optimized values. Consequently, we come to the conclusion that the solution has decent potentials in boosting customer experiences and qualities of services in Web Services, and those in applications in the whole electronic commerce and business sector.

  1. Privacy: An Overview of Federal Statutes Governing Wiretapping and Electronic Eavesdropping

    DTIC Science & Technology

    2008-09-02

    the parties to the conversation. Late in the game, the FCC supplied a partial solution when it banned the use of licensed radio equipment to overhear... electromagnetic , photoelectronic or photooptical system that affects interstate or foreign commerce, but does not include – (A) the radio portion of...authorized frequency within the bands allocated to the amateur, citizens band, or general mobile radio services; or (IV) by any marine or aeronautical

  2. 41 CFR 102-118.60 - To what extent must my agency use electronic commerce?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... agency use electronic commerce? 102-118.60 Section 102-118.60 Public Contracts and Property Management... Services § 102-118.60 To what extent must my agency use electronic commerce? Your agency must use electronic commerce in all areas of your transportation program. This includes the use of electronic systems...

  3. 41 CFR 102-118.60 - To what extent must my agency use electronic commerce?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... agency use electronic commerce? 102-118.60 Section 102-118.60 Public Contracts and Property Management... Services § 102-118.60 To what extent must my agency use electronic commerce? Your agency must use electronic commerce in all areas of your transportation program. This includes the use of electronic systems...

  4. 41 CFR 102-118.60 - To what extent must my agency use electronic commerce?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... agency use electronic commerce? 102-118.60 Section 102-118.60 Public Contracts and Property Management... Services § 102-118.60 To what extent must my agency use electronic commerce? Your agency must use electronic commerce in all areas of your transportation program. This includes the use of electronic systems...

  5. 41 CFR 102-118.60 - To what extent must my agency use electronic commerce?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... agency use electronic commerce? 102-118.60 Section 102-118.60 Public Contracts and Property Management... Services § 102-118.60 To what extent must my agency use electronic commerce? Your agency must use electronic commerce in all areas of your transportation program. This includes the use of electronic systems...

  6. 41 CFR 102-118.60 - To what extent must my agency use electronic commerce?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... agency use electronic commerce? 102-118.60 Section 102-118.60 Public Contracts and Property Management... Services § 102-118.60 To what extent must my agency use electronic commerce? Your agency must use electronic commerce in all areas of your transportation program. This includes the use of electronic systems...

  7. Innovation and development of exhibition electronic-commerce based on the properties of electronic-commerce

    NASA Astrophysics Data System (ADS)

    Zhang, Jiankang

    2017-06-01

    There are two roadmaps of accomplishing exhibition electronic-commerce innovation and development. The first roadmap is that the exhibition organizers should seek mutual benefit cooperation with professional electronic-commerce platform of correspondent area with exhibition projects, thus help exhibitors realize their market object. The second roadmap is to promote innovation and development of electronic-commerce (Business-to-Customer) between both exhibitors and purchasers. Exhibition electronic-commerce must focus on innovative development in the following functions: market research and information service; advertising and business negotiation; online trading and online payment. With the aid of electronic-commerce, exhibition enterprise could have distinctive strengths such as transactions with virtualization, transparency, high efficiency and low cost, enhancing market link during enterprise research and development, promoting the efficiency of internal team collaboration and the individuation of external service, and optimizing resource allocation.

  8. 12 CFR 609.925 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... systems. (c) Electronic business (E-business) or electronic commerce (E-commerce) means buying, selling, producing, or working in an electronic medium. (d) Electronic mail (E-mail) means: (1) To send or submit... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions...

  9. 12 CFR 609.925 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... systems. (c) Electronic business (E-business) or electronic commerce (E-commerce) means buying, selling, producing, or working in an electronic medium. (d) Electronic mail (E-mail) means: (1) To send or submit... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions...

  10. 12 CFR 609.925 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... systems. (c) Electronic business (E-business) or electronic commerce (E-commerce) means buying, selling, producing, or working in an electronic medium. (d) Electronic mail (E-mail) means: (1) To send or submit... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions...

  11. 12 CFR 609.925 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... systems. (c) Electronic business (E-business) or electronic commerce (E-commerce) means buying, selling, producing, or working in an electronic medium. (d) Electronic mail (E-mail) means: (1) To send or submit... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions...

  12. 12 CFR 609.925 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... systems. (c) Electronic business (E-business) or electronic commerce (E-commerce) means buying, selling, producing, or working in an electronic medium. (d) Electronic mail (E-mail) means: (1) To send or submit... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions...

  13. A Change of Course: The Importance to DoD of International Standards for Electronic Commerce

    DTIC Science & Technology

    1991-01-01

    The U.S. Department of Defense (DoD) is committed to using electronic commerce in the future with the over 300,000 vendors interested in doing...business with DoD. Electronic commerce will move DoD from a paper-based world to one based on electronic transactions enabled by the exchange of formatted...electronic messages referred to as electronic data interchange (EDI). With electronic commerce , DoD plans to reduce costs, increase effectiveness, and

  14. Developing and validating an instrument for measuring mobile computing self-efficacy.

    PubMed

    Wang, Yi-Shun; Wang, Hsiu-Yuan

    2008-08-01

    IT-related self-efficacy has been found to have a critical influence on system use. However, traditional measures of computer self-efficacy and Internet-related self-efficacy are perceived to be inapplicable in the context of mobile computing and commerce because they are targeted primarily at either desktop computer or wire-based technology contexts. Based on previous research, this study develops and validates a multidimensional instrument for measuring mobile computing self-efficacy (MCSE). This empirically validated instrument will be useful to researchers in developing and testing the theories of mobile user behavior, and to practitioners in assessing the mobile computing self-efficacy of users and promoting the use of mobile commerce systems.

  15. Information asymmetry, social networking site word of mouth, and mobility effects on social commerce in Korea.

    PubMed

    Hwang, In Jeong; Lee, Bong Gyou; Kim, Ki Youn

    2014-02-01

    The purpose of this research is to examine the issues that affect customers' behavioral character and purchasing behavior. The study proposes a research hypothesis with independent variables that include social presence, trust, and information asymmetry, and the dependent variable purchase decision making, to explain differentiated customer decision making processes in social commerce (S-commerce). To prove the hypothesis, positive verification was performed by focusing on mediating effects through a customer uncertainty variable and moderating effects through mobility and social networking site word of mouth (SNS WOM) variables. The number of studies on customer trends has rapidly increased together with the market size of S-commerce. However, few studies have examined the negative variables that make customers hesitant to make decisions in S-commerce. This study investigates the causes of customer uncertainty and focuses on deducing the control variables that offset this negative relationship. The study finds that in customers' S-commerce purchasing actions, the SNS WOM and mobility variables show control effects between information asymmetry and uncertainty and between trust and uncertainty. Additionally, this research defines the variables related to customer uncertainty that are hidden in S-commerce, and statistically verifies their relationship. The research results can be used in Internet marketing practices to establish marketing mix strategies for customer demand or as research data to predict customer behavior. The results are scientifically meaningful as a precedent for research on customers in S-commerce.

  16. Electronic Commerce and Competitive Procurement

    DTIC Science & Technology

    1991-06-01

    electronic commerce techniques ( electronic Jata interchange (EDI). electronic mail ( E -mail), electronic bulletin boards and facsimile] to competitive ...The ability to conduct discussions and negotiations with offerors electronically by E -mail supports the competitive proposal solicitation method...software vendors understand the dimensions of the DoD electronic commerce market , they may through competitive forces provide EDI capability. If their

  17. Study on the E-commerce platform based on the agent

    NASA Astrophysics Data System (ADS)

    Fu, Ruixue; Qin, Lishuan; Gao, Yinmin

    2011-10-01

    To solve problem of dynamic integration in e-commerce, the Multi-Agent architecture of electronic commerce platform system based on Agent and Ontology has been introduced, which includes three major types of agent, Ontology and rule collection. In this architecture, service agent and rule are used to realize the business process reengineering, the reuse of software component, and agility of the electronic commerce platform. To illustrate the architecture, a simulation work has been done and the results imply that the architecture provides a very efficient method to design and implement the flexible, distributed, open and intelligent electronic commerce platform system to solve problem of dynamic integration in ecommerce. The objective of this paper is to illustrate the architecture of electronic commerce platform system, and the approach how Agent and Ontology support the electronic commerce platform system.

  18. A Framework for Global Electronic Commerce: An Executive Summary.

    ERIC Educational Resources Information Center

    Office of the Press Secretary of the White House

    1997-01-01

    An abbreviated version of a longer policy document on electronic commerce released by the Clinton Administration, this article examines principles and recommendations on tariffs, taxes, electronic payment systems, uniform commercial code for electronic commerce, intellectual property protection, privacy, security, telecommunications infrastructure…

  19. Strategic Plan for Electronic Commerce, Defense Personnel Support Center

    DTIC Science & Technology

    1993-07-01

    faster, less expensive and far more accurate electronic commerce business methods that use Electronic Data Interchange standards. As a context for that...management responsibilities, establishes a plan of action and milestones, and describes ongoing electronic commerce projects at the corporate and business unit level.

  20. Implementation of Electronic Commerce in the Department of Defense and the National Aeronautics and Space Administration.

    DTIC Science & Technology

    1996-12-01

    President Clinton’s Executive Memorandum of 26 October 1993 mandated that all Federal Government agencies implement Electronic Commerce (EC) in order... Electronic Commerce /Electronic Data Interchange (EC/EDI) architecture. The NASA employed an Internet based tool, the NASA Acquisition Internet Service

  1. Usability evaluation techniques in mobile commerce applications: A systematic review

    NASA Astrophysics Data System (ADS)

    Hussain, Azham; Mkpojiogu, Emmanuel O. C.

    2016-08-01

    Obviously, there are a number of literatures concerning the usability of mobile commerce (m-commerce) applications and related areas, but they do not adequately provide knowledge about usability techniques used in most of the empirical usability evaluation for m-commerce application. Therefore, this paper is aimed at producing the usability techniques frequently used in the aspect of usability evaluation for m-commerce applications. To achieve the stated objective, systematic literature review was employed. Sixty seven papers were downloaded in usability evaluation for m-commerce and related areas; twenty one most relevant studies were selected for review in order to extract the appropriate information. The results from the review shows that heuristic evaluation, formal test and think aloud methods are the most commonly used methods in m-commerce application in comparison to cognitive walkthrough and the informal test methods. Moreover, most of the studies applied control experiment (33.3% of the total studies); other studies that applied case study for usability evaluation are 14.28%. The results from this paper provide additional knowledge to the usability practitioners and research community for the current state and use of usability techniques in m-commerce application.

  2. 12 CFR 609.905 - Background.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... facilitates electronic commerce (E-commerce) and allows Farm Credit System (System) institutions and their customers to use new technologies. System institutions may use E-commerce but must establish good business... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General Rules § 609.905...

  3. 12 CFR 609.905 - Background.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... facilitates electronic commerce (E-commerce) and allows Farm Credit System (System) institutions and their customers to use new technologies. System institutions may use E-commerce but must establish good business... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General Rules § 609.905...

  4. 12 CFR 609.905 - Background.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... facilitates electronic commerce (E-commerce) and allows Farm Credit System (System) institutions and their customers to use new technologies. System institutions may use E-commerce but must establish good business... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General Rules § 609.905...

  5. 12 CFR 609.905 - Background.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... facilitates electronic commerce (E-commerce) and allows Farm Credit System (System) institutions and their customers to use new technologies. System institutions may use E-commerce but must establish good business... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General Rules § 609.905...

  6. 12 CFR 609.905 - Background.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... facilitates electronic commerce (E-commerce) and allows Farm Credit System (System) institutions and their customers to use new technologies. System institutions may use E-commerce but must establish good business... Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General Rules § 609.905...

  7. A security scheme of SMS system

    NASA Astrophysics Data System (ADS)

    Zhang, Fangzhou; Yang, Hong-Wei; Song, Chuck

    2005-02-01

    With the prosperous development and the use of SMS, more and more important information need to be transferred through the wireless and mobile networks by the users. But in the GSM/GPRS network, the SMS messages are transferred in text mode through the signaling channel and there is no integrality for SMS messages. Because of the speciality of the mobile communications, the security of signaling channel is very weak. So we need to improve and enhance the security and integrality of SMS. At present, developed investigation based on SMS security is still incomplete. The key distribution and management is not perfect to meet the usability in a wide area. This paper introduces a high-level security method to solve this problem. We design the Secure SMS of GSM/GPRS in order to improve the security of the important information that need to be transferred by the mobile networks. Using this method, we can improve the usability of E-payment and other mobile electronic commerce.

  8. Analysis of Human Resources Management Strategy in China Electronic Commerce Enterprises

    NASA Astrophysics Data System (ADS)

    Shao, Fang

    The paper discussed electronic-commerce's influence on enterprise human resources management, proposed and proved the human resources management strategy which electronic commerce enterprise should adopt from recruitment strategy to training strategy, keeping talent strategy and other ways.

  9. 48 CFR 15.203 - Requests for proposals.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... information regarding cost comparisons between Government and contractor performance. (c) Electronic commerce... RFP shall specify the electronic commerce method(s) that offerors may use (see subpart 4.5). (d... and suitability of electronic commerce methods; and (iv) Adequacy of administrative procedures and...

  10. Localization in random bipartite graphs: Numerical and empirical study

    NASA Astrophysics Data System (ADS)

    Slanina, František

    2017-05-01

    We investigate adjacency matrices of bipartite graphs with a power-law degree distribution. Motivation for this study is twofold: first, vibrational states in granular matter and jammed sphere packings; second, graphs encoding social interaction, especially electronic commerce. We establish the position of the mobility edge and show that it strongly depends on the power in the degree distribution and on the ratio of the sizes of the two parts of the bipartite graph. At the jamming threshold, where the two parts have the same size, localization vanishes. We found that the multifractal spectrum is nontrivial in the delocalized phase, but still near the mobility edge. We also study an empirical bipartite graph, namely, the Amazon reviewer-item network. We found that in this specific graph the mobility edge disappears, and we draw a conclusion from this fact regarding earlier empirical studies of the Amazon network.

  11. Localization in random bipartite graphs: Numerical and empirical study.

    PubMed

    Slanina, František

    2017-05-01

    We investigate adjacency matrices of bipartite graphs with a power-law degree distribution. Motivation for this study is twofold: first, vibrational states in granular matter and jammed sphere packings; second, graphs encoding social interaction, especially electronic commerce. We establish the position of the mobility edge and show that it strongly depends on the power in the degree distribution and on the ratio of the sizes of the two parts of the bipartite graph. At the jamming threshold, where the two parts have the same size, localization vanishes. We found that the multifractal spectrum is nontrivial in the delocalized phase, but still near the mobility edge. We also study an empirical bipartite graph, namely, the Amazon reviewer-item network. We found that in this specific graph the mobility edge disappears, and we draw a conclusion from this fact regarding earlier empirical studies of the Amazon network.

  12. Electronic Commerce: Government Services in the New Millennium.

    ERIC Educational Resources Information Center

    Maxwell, Terrence A., Ed.

    1998-01-01

    This newsletter features innovations in resource management and information technology to support New York State government. The newsletter contains the following six sections: (1) "Electronic Commerce: Government Services in the New Millennium" -- examining the need for government involvement in electronic commerce policy and…

  13. Electronic commerce: beyond the euphoria.

    PubMed

    Healy, J L; DeLuca, J M

    2000-01-01

    As the center of considerable media attention, case study articles, vendor research, and development efforts, electronic commerce technology is entering healthcare and having a profound effect. The simple truth, however, is that after the drama and excitement begins to wear off, completing a successful e-commerce implementation remains good old-fashioned hard, sometimes monotonous work. To be successful, e-commerce technologies must be planned and implemented with rigorous project standards, and incorporated with significant process and workflow reengineering to actually return significant value to the organization. This article briefs readers on the organizational issues they must consider in evaluating e-commerce readiness--cultural, executive and technological factors that either support or inhibit project and technology success. Readers will be left with the tools to conduct an electronic commerce "readiness assessment" to evaluate the immediate, mid- and long-term potential of electronic commerce; practical remediation strategies for better preparing the organization for the changes inherent in moving to an e-commerce-enabled business model; and comments from the field--advice from organizations that have successfully implemented e-commerce technologies into their ongoing operations.

  14. Implementing Electronic Data Interchange (EDI) with Small Business Suppliers in the Pre-Award Acquisition Process

    DTIC Science & Technology

    1993-06-01

    initiative " Electronic Commerce through EDI." Consistent with the DoD initiative to implement EDI with industry, participation of small businesses in the pre...paperwork associated with the pre-award acquisition process, electronic commerce is being integrated with EDI through electronic bulletin boards...This thesis will explore the issues surrounding DoD’s successfully implementing the use of Electronic Commerce / Electronic Data Interchange (EC/EDI

  15. Trust and Relationship Building in Electronic Commerce.

    ERIC Educational Resources Information Center

    Papadopoulou, Panagiota; Andreou, Andreas; Kanellis, Panagiotis; Martakos, Drakoulis

    2001-01-01

    Discussion of the need for trust in electronic commerce to build customer relationships focuses on a model drawn from established theoretical work on trust and relationship marketing that highlights differences between traditional and electronic commerce. Considers how trust can be built into virtual environments. (Contains 50 references.)…

  16. 15 CFR 30.9 - Transmitting and correcting Electronic Export Information.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Transmitting and correcting Electronic Export Information. 30.9 Section 30.9 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade BUREAU OF THE CENSUS, DEPARTMENT OF COMMERCE FOREIGN TRADE REGULATIONS General Requirements...

  17. 15 CFR 748.7 - Applying electronically for a license or Classification request.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Applying electronically for a license or Classification request. 748.7 Section 748.7 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF INDUSTRY AND SECURITY, DEPARTMENT OF COMMERCE EXPORT...

  18. From EDI to Internet Commerce: The BHP Steel Experience.

    ERIC Educational Resources Information Center

    Chan, Caroline; Swatman, Paula M. C.

    2000-01-01

    Discusses the issue of business-to-business electronic commerce implementation and the factors affecting it. Discusses electronic data interchange technology, describes the results of a case study of BHP Steel (Australia), and considers paradigm shifts in implementation issues related to electronic commerce that occur over time. (Author/LRW)

  19. The Evolution of Electronic Commerce Education

    ERIC Educational Resources Information Center

    Burkey, Julie

    2007-01-01

    Business schools began introducing electronic commerce programs in the late 1990s at unprecedented rates. In this study, the author examined the evolution in electronic commerce programs offered by AACSB-accredited colleges and universities from 2001 to 2005. Although these programs are declining in number, they provide the necessary skills and…

  20. The Importance of Trust in Electronic Commerce.

    ERIC Educational Resources Information Center

    Ratnasingham, Pauline

    1998-01-01

    Introduces the new concept of trust and how it influences the process of managing the security of an organization operating in an electronic commerce environment. Theoretically, the study aims to develop a framework of trust and security to provide a set of guidelines for secure electronic commerce. (Author/LRW)

  1. 15 CFR 30.6 - Electronic Export Information data elements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 15 Commerce and Foreign Trade 1 2012-01-01 2012-01-01 false Electronic Export Information data elements. 30.6 Section 30.6 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... Electronic Export Information data elements. The information specified in this section is required for...

  2. 15 CFR 30.6 - Electronic Export Information data elements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Electronic Export Information data elements. 30.6 Section 30.6 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... Electronic Export Information data elements. The information specified in this section is required for...

  3. 12 CFR 617.7005 - When may electronic communications be used in the borrower rights process?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... borrower rights process? Qualified lenders may use, with the parties' agreement, electronic commerce (E-commerce), including electronic communications for borrower rights disclosures. Part 609 of this chapter addresses when a qualified lender may use E-commerce. Consistent with these rules, a qualified lender should...

  4. 12 CFR 617.7005 - When may electronic communications be used in the borrower rights process?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... borrower rights process? Qualified lenders may use, with the parties' agreement, electronic commerce (E-commerce), including electronic communications for borrower rights disclosures. Part 609 of this chapter addresses when a qualified lender may use E-commerce. Consistent with these rules, a qualified lender should...

  5. 12 CFR 617.7005 - When may electronic communications be used in the borrower rights process?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... borrower rights process? Qualified lenders may use, with the parties' agreement, electronic commerce (E-commerce), including electronic communications for borrower rights disclosures. Part 609 of this chapter addresses when a qualified lender may use E-commerce. Consistent with these rules, a qualified lender should...

  6. 12 CFR 617.7005 - When may electronic communications be used in the borrower rights process?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... borrower rights process? Qualified lenders may use, with the parties' agreement, electronic commerce (E-commerce), including electronic communications for borrower rights disclosures. Part 609 of this chapter addresses when a qualified lender may use E-commerce. Consistent with these rules, a qualified lender should...

  7. 12 CFR 617.7005 - When may electronic communications be used in the borrower rights process?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... borrower rights process? Qualified lenders may use, with the parties' agreement, electronic commerce (E-commerce), including electronic communications for borrower rights disclosures. Part 609 of this chapter addresses when a qualified lender may use E-commerce. Consistent with these rules, a qualified lender should...

  8. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. [65 FR 47284, Aug. 2, 2000] ...

  9. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. [65 FR 47284, Aug. 2, 2000] ...

  10. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. [65 FR 47284, Aug. 2, 2000] ...

  11. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. [65 FR 47284, Aug. 2, 2000] ...

  12. 17 CFR 230.160 - Registered investment company exemption from Section 101(c)(1) of the Electronic Signatures in...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... exemption from Section 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. 230.160...(c)(1) of the Electronic Signatures in Global and National Commerce Act. A prospectus for an... 101(c)(1) of the Electronic Signatures in Global and National Commerce Act. [65 FR 47284, Aug. 2, 2000] ...

  13. An Electronic Commerce Strategy for MTMC’s Guaranteed Traffic Program

    DTIC Science & Technology

    1992-10-01

    AD-A264 299 SELECTE October 1992 S MAY1 4 1993U C An Electronic Commerce Strategy for MTMC’s Guaranteed Traffic Program MT901R I N1. Augustine...NUMBERS An Electronic Commerce Strategy for MTMC’s Guaranteed Traffic Program C MDA903-85-C -0139 M DA903-90-C-0006 PE 0902198D 6. AUTHOR(S) M...239-1L 299-01 LMI Executive Summary AN ELECTRONIC COMMERCE STRATEGY FOR MTMC’S GUARANTEED TRAFFIC PROGRAM In 1979, the Military Traffic Management

  14. Privacy preserving, real-time and location secured biometrics for mCommerce authentication

    NASA Astrophysics Data System (ADS)

    Kuseler, Torben; Al-Assam, Hisham; Jassim, Sabah; Lami, Ihsan A.

    2011-06-01

    Secure wireless connectivity between mobile devices and financial/commercial establishments is mature, and so is the security of remote authentication for mCommerce. However, the current techniques are open for hacking, false misrepresentation, replay and other attacks. This is because of the lack of real-time and current-precise-location in the authentication process. This paper proposes a new technique that includes freshly-generated real-time personal biometric data of the client and present-position of the mobile device used by the client to perform the mCommerce so to form a real-time biometric representation to authenticate any remote transaction. A fresh GPS fix generates the "time and location" to stamp the biometric data freshly captured to produce a single, real-time biometric representation on the mobile device. A trusted Certification Authority (CA) acts as an independent authenticator of such client's claimed realtime location and his/her provided fresh biometric data. Thus eliminates the necessity of user enrolment with many mCommerce services and application providers. This CA can also "independently from the client" and "at that instant of time" collect the client's mobile device "time and location" from the cellular network operator so to compare with the received information, together with the client's stored biometric information. Finally, to preserve the client's location privacy and to eliminate the possibility of cross-application client tracking, this paper proposes shielding the real location of the mobile device used prior to submission to the CA or authenticators.

  15. A change of course: The importance to DoD of international standards for electronic commerce

    NASA Astrophysics Data System (ADS)

    Payne, Judith E.

    1991-12-01

    The U.S. Department of Defense (DoD) is committed to using electronic commerce in the future with the over 300,000 vendors interested in doing business with DoD. Electronic commerce will move DoD from a paper-based world to one based on electronic transactions enabled by the exchange of formatted, electronic messages referred to as electronic data interchange (EDI). With electronic commerce, DoD plans to reduce costs, increase effectiveness, and make it easier for vendors to deal with DoD. Benefits from electronic commerce are enhanced when many businesses use the same standards for EDI messages themselves and their transmission. The fewer standards used, the less time and resources must be spent translating messages and agreeing on how to use different standards. To enhance benefits and smooth the transition to electronic commerce for itself and its vendors, DoD has chosen to use the widely accepted American National Standards Institute (ANSI) X12 standards for EDI messages, coupled with international standards for delivering messages and organizing addresses. In the past 18 months, EDI standards sponsored by a United Nations body and serving the same purpose as ANSI X12 message standards have begun to gain wider acceptance internationally.

  16. Security Implications of Electronic Commerce: A Survey of Consumers and Businesses.

    ERIC Educational Resources Information Center

    Furnell, S. M.; Karweni, T.

    1999-01-01

    Examines general requirement for security technologies that provide a basis for trust in the electronic commerce environment. Discusses the results of two surveys that included general Internet users who are potential customers as well as commercial businesses, that considered attitudes to electronic commerce in general and options relating to…

  17. 30 CFR 1210.104 - Must I submit these production reports electronically?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    .../payors must report to ONRR electronically via the eCommerce Reporting Web site. All reporters/payors also... information and instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce_FAQ.pdf. (c) Refer to our electronic reporting guidelines in the ONRR Minerals...

  18. 30 CFR 1210.104 - Must I submit these production reports electronically?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., all reporters/payors must report to ONRR electronically via the eCommerce Reporting Web site. All... can access detailed information and instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce_FAQ.pdf. (c) Refer to our electronic reporting guidelines...

  19. 30 CFR 1210.104 - Must I submit these production reports electronically?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., all reporters/payors must report to ONRR electronically via the eCommerce Reporting Web site. All... can access detailed information and instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce_FAQ.pdf. (c) Refer to our electronic reporting guidelines...

  20. Adoption and Business Value of Mobile Retail Channel: A Dependency Perspective on Mobile Commerce

    ERIC Educational Resources Information Center

    Chou, Yen-Chun

    2013-01-01

    Forrest Research estimated that revenues derived from mobile devices will grow at an annual rate of 39% to reach $31 billion by 2016. With the tremendous market growth, mobile banking, mobile marketing, and mobile retailing have been recently introduced to satisfy customer needs. Academic and practical articles have widely discussed unique…

  1. A functional-dependencies-based Bayesian networks learning method and its application in a mobile commerce system.

    PubMed

    Liao, Stephen Shaoyi; Wang, Huai Qing; Li, Qiu Dan; Liu, Wei Yi

    2006-06-01

    This paper presents a new method for learning Bayesian networks from functional dependencies (FD) and third normal form (3NF) tables in relational databases. The method sets up a linkage between the theory of relational databases and probabilistic reasoning models, which is interesting and useful especially when data are incomplete and inaccurate. The effectiveness and practicability of the proposed method is demonstrated by its implementation in a mobile commerce system.

  2. 30 CFR 1210.54 - Must I submit this royalty report electronically?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    .../payors must report to ONRR electronically via the eCommerce Reporting Web site. All reporters/payors also... instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce...

  3. 30 CFR 1210.54 - Must I submit this royalty report electronically?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .../payors must report to ONRR electronically via the eCommerce Reporting Web site. All reporters/payors also... instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce...

  4. 30 CFR 1210.54 - Must I submit this royalty report electronically?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .../payors must report to ONRR electronically via the eCommerce Reporting Web site. All reporters/payors also... instructions regarding how to use the eCommerce Reporting Web site at http://www.onrr.gov/FM/PDFDocs/eCommerce...

  5. Bargaining Agents in Wireless Contexts: An Alternating-Offers Protocol for Multi-issue Bilateral Negotiation in Mobile Marketplaces

    NASA Astrophysics Data System (ADS)

    Ragone, Azzurra; Ruta, Michele; di Sciascio, Eugenio; Donini, Francesco M.

    We present an approach to multi-issue bilateral negotiation for mobile commerce scenarios. The negotiation mechanism has been integrated in a semantic-based application layer enhancing both RFID and Bluetooth wireless standards. OWL DL has been used to model advertisements and relationships among issues within a shared common ontology. Finally, non standard inference services integrated with utility theory help in finding suitable agreements. We illustrate and motivate the provided theoretical framework in a wireless commerce case study.

  6. 12 CFR 609.910 - Compliance with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Global and National Commerce Act (Public Law 106-229) (E-SIGN). 609.910 Section 609.910 Banks and Banking... with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229) (E-SIGN). (a) General. E-SIGN makes it easier to conduct E-commerce. With some exceptions, E-SIGN permits the use and...

  7. 12 CFR 609.910 - Compliance with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Global and National Commerce Act (Public Law 106-229) (E-SIGN). 609.910 Section 609.910 Banks and Banking... with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229) (E-SIGN). (a) General. E-SIGN makes it easier to conduct E-commerce. With some exceptions, E-SIGN permits the use and...

  8. 12 CFR 609.910 - Compliance with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Global and National Commerce Act (Public Law 106-229) (E-SIGN). 609.910 Section 609.910 Banks and Banking... with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229) (E-SIGN). (a) General. E-SIGN makes it easier to conduct E-commerce. With some exceptions, E-SIGN permits the use and...

  9. 12 CFR 609.910 - Compliance with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Global and National Commerce Act (Public Law 106-229) (E-SIGN). 609.910 Section 609.910 Banks and Banking... with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229) (E-SIGN). (a) General. E-SIGN makes it easier to conduct E-commerce. With some exceptions, E-SIGN permits the use and...

  10. 12 CFR 609.910 - Compliance with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Global and National Commerce Act (Public Law 106-229) (E-SIGN). 609.910 Section 609.910 Banks and Banking... with the Electronic Signatures in Global and National Commerce Act (Public Law 106-229) (E-SIGN). (a) General. E-SIGN makes it easier to conduct E-commerce. With some exceptions, E-SIGN permits the use and...

  11. An ANFIS-based on B2C electronic commerce transaction

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lin, Juan, E-mail: linjuanliucaihong@qq.com; Liu, Chenlian, E-mail: chenglian.liu@gmail.com; Guo, Yongning, E-mail: guoyn@163.com

    2014-10-06

    The purpose of this study is to use an adaptive-network-based fuzzy inference system to model a fuzzy logic-based system (FIS) for supporting decision-making process in B2C electronic commerce transaction. Firstly we introduce FIS in B2C electronic commerce transaction and ANFIS. Then we use ANFIS to model FIS with different membership functions(MF). Lastly we give a conclusion.

  12. An ANFIS-based on B2C electronic commerce transaction

    NASA Astrophysics Data System (ADS)

    Lin, Juan; Liu, Chenlian; Guo, Yongning

    2014-10-01

    The purpose of this study is to use an adaptive-network-based fuzzy inference system to model a fuzzy logic-based system (FIS) for supporting decision-making process in B2C electronic commerce transaction. Firstly we introduce FIS in B2C electronic commerce transaction and ANFIS. Then we use ANFIS to model FIS with different membership functions(MF). Lastly we give a conclusion.

  13. Protecting software agents from malicious hosts using quantum computing

    NASA Astrophysics Data System (ADS)

    Reisner, John; Donkor, Eric

    2000-07-01

    We evaluate how quantum computing can be applied to security problems for software agents. Agent-based computing, which merges technological advances in artificial intelligence and mobile computing, is a rapidly growing domain, especially in applications such as electronic commerce, network management, information retrieval, and mission planning. System security is one of the more eminent research areas in agent-based computing, and the specific problem of protecting a mobile agent from a potentially hostile host is one of the most difficult of these challenges. In this work, we describe our agent model, and discuss the capabilities and limitations of classical solutions to the malicious host problem. Quantum computing may be extremely helpful in addressing the limitations of classical solutions to this problem. This paper highlights some of the areas where quantum computing could be applied to agent security.

  14. Real-Time Robust Adaptive Modeling and Scheduling for an Electronic Commerce Server

    NASA Astrophysics Data System (ADS)

    Du, Bing; Ruan, Chun

    With the increasing importance and pervasiveness of Internet services, it is becoming a challenge for the proliferation of electronic commerce services to provide performance guarantees under extreme overload. This paper describes a real-time optimization modeling and scheduling approach for performance guarantee of electronic commerce servers. We show that an electronic commerce server may be simulated as a multi-tank system. A robust adaptive server model is subject to unknown additive load disturbances and uncertain model matching. Overload control techniques are based on adaptive admission control to achieve timing guarantees. We evaluate the performance of the model using a complex simulation that is subjected to varying model parameters and massive overload.

  15. Study on Influencing Factor Analysis and Application of Consumer Mobile Commerce Acceptance

    NASA Astrophysics Data System (ADS)

    Li, Gaoguang; Lv, Tingjie

    Mobile commerce (MC) refers to e-commerce activities carried out using a mobile device such as a phone or PDA. With new technology, MC will be rapidly growing in the near future. At the present time, what factors making consumer accept MC and what MC applications are acceptable by consumers are two of hot issues both for MC providers and f or MC researchers. This study presents a proposed MC acceptance model that integrates perceived playfulness, perceived risk and cost into the TAM to study which factors affect consumer MC acceptance. The proposed model includes five variables, namely perceived risk, cost, perceived usefulness, perceived playfulness, perceived ease of use, perceived playfulness. Then, using analytic hierarchy process (AHP) to calculate weight of criteria involved in proposed model. Finally, the study utilizes fuzzy comprehensive evaluation method to evaluate MC applications accepted possibility, and then a MC application is empirically tested using data collected from a survey of MC consumers.

  16. Mastering Mobile Security

    ERIC Educational Resources Information Center

    Panettieri, Joseph C.

    2007-01-01

    Without proper security, mobile devices are easy targets for worms, viruses, and so-called robot ("bot") networks. Hackers increasingly use bot networks to launch massive attacks against eCommerce websites--potentially targeting one's online tuition payment or fundraising/financial development systems. How can one defend his mobile systems against…

  17. The impact of transaction trust on consumers' intentions to adopt m-commerce: a cross-cultural investigation.

    PubMed

    Kao, Danny Tengti

    2009-04-01

    Mobile commerce (M-commerce) has been acknowledged as one of the most representative transaction types driving e-commerce worldwide; however, the potential security threats that keep consumers from M-commerce still confound the M-commerce industry. This research attempts to explore two questions: What are the dimensions of transaction trust that may significantly affect consumers' intentions to adopt M-commerce, and what are the cultural dimensions that may significantly moderate the impact of transaction trust on consumers' intentions to adopt M-commerce? A research framework based on the BATE model and Hofstede's cultural dimensions was established to identify how transaction trust and cultural value affect consumers' intentions to adopt M-commerce. Results revealed that transaction trust significantly affects consumers' intentions to adopt M-commerce. However, while uncertainty avoidance moderates the impacts of business trust and security on consumers' intentions of M-commerce adoption, both individualism/collectivism and long-term/short-term orientation moderate the relationship between security trust and consumers' intentions of M-commerce adoption.

  18. 12 CFR 609.950 - Electronic communications.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... with E-SIGN, System institutions may communicate electronically in business, consumer, or commercial transactions. E-commerce transactions require the agreement of all parties when you do business. (b....950 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General...

  19. 12 CFR 609.950 - Electronic communications.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... with E-SIGN, System institutions may communicate electronically in business, consumer, or commercial transactions. E-commerce transactions require the agreement of all parties when you do business. (b....950 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General...

  20. 12 CFR 609.950 - Electronic communications.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... with E-SIGN, System institutions may communicate electronically in business, consumer, or commercial transactions. E-commerce transactions require the agreement of all parties when you do business. (b....950 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General...

  1. 12 CFR 609.950 - Electronic communications.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... with E-SIGN, System institutions may communicate electronically in business, consumer, or commercial transactions. E-commerce transactions require the agreement of all parties when you do business. (b....950 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General...

  2. 12 CFR 609.950 - Electronic communications.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... with E-SIGN, System institutions may communicate electronically in business, consumer, or commercial transactions. E-commerce transactions require the agreement of all parties when you do business. (b....950 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE General...

  3. Electronic Signatures in Global and National Commerce Act. Public Law.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC.

    This document presents the text of Public Law 106-229, the "Electronic Signatures in Global and National Commerce Act." The act states that, with respect to any transaction in or affecting interstate or foreign commerce: a signature, contract, or other record relating to such transaction may not be denied legal effect, validity, or…

  4. Mobile phone related-hazards and subjective hearing and vision symptoms in the Saudi population.

    PubMed

    Meo, Sultan A; Al-Drees, Abdul M

    2005-01-01

    Over the past decade utilization of mobile phones has dramatically increased. They are now an essential part of business, commerce, and communication, however, their use may lead to health problems. Therefore, the present study was designed to investigate a link between the use of mobile phones and hearing and vision symptoms in the Saudi population and also to contribute to the increase in social awareness of health problems associated with the use of these devices. A total of 873 (57.04% of males and 39.86% of females) subjects using mobile phones were invited to participate in the presented study. A structured questionnaire was distributed among them to collect a detailed medical history. The Chi-square test was employed to observe the relationship between duration of calls and hearing and vision complaints. The present study showed an association between the use of mobile phones and hearing and vision complaints. About 34.59% of problems were related with impaired hearing, ear ache and/or warmth on the ear, and 5.04% of complaints with the decreased and/or blurred vision. It is concluded that the use of mobile phone is a health risk factor, and thus it is suggested that excessive use of mobile phones should be avoided and social awareness increased through health promotion activities, such as group discussions or public presentations and via electronic and printed media sources.

  5. Association of mobile phone radiation with fatigue, headache, dizziness, tension and sleep disturbance in Saudi population.

    PubMed

    Al-Khlaiwi, Thamir; Meo, Sultan A

    2004-06-01

    The widespread use of mobile phones has been increased over the past decade; they are now an essential part of business, commerce and society. The use of mobile phones can cause health problems. Therefore, the aim of the present study is to investigate the association of using mobile phones with fatigue, headache, dizziness, tension and sleep disturbance in the Saudi population and provide health and social awareness in using these devices. This study was conducted in the Department of Physiology, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia during the year 2002 to 2003. In the present study, a total of 437 subjects (55.1% male and 39.9% female) were invited, they have and had been using mobile phones. A questionnaire was distributed regarding detailed history and association of mobile phones with health hazards. The results of the present study showed an association between the use of mobile phones and health hazards. The overall mean percentage for these clinical findings in all groups were headache (21.6%), sleep disturbance (4.%), tension (3.9%), fatigue (3%) and dizziness (2.4%). Based on the results of the present study, we conclude that the use of mobile phones is a risk factor for health hazards and suggest that long term or excessive use of mobile phones should be avoided by health promotion activities such as group discussions, public presentations and through electronic and print media sources.

  6. SMEs and Electronic Commerce: A Departure from the Traditional Prioritisation of Training?

    ERIC Educational Resources Information Center

    Barry, Helen; Milner, Brigid

    2002-01-01

    A survey of 56 small/medium-sized Irish enterprises showed that 46% were highly proficient in electronic commerce, 42% were at the basic level. Media pressure significantly influenced adoption. In 40% of firms, owner-managers were the driving force. E-commerce was not yet business critical and relevant training was not yet a comprehensive…

  7. Some Lessons for Higher Education from the Economics of Electronic Commerce.

    ERIC Educational Resources Information Center

    Avenell, Simon

    The arrival of the Internet has been seen to portend the rise of the virtual university, global competition, and the end of campus education. The emerging economics of electronic commerce (eCommerce) allows for a measured understanding of the implications of the new technologies for higher education and even how educational innovation should be…

  8. Do You Trust Your Phone?

    NASA Astrophysics Data System (ADS)

    Castiglione, Aniello; de Prisco, Roberto; de Santis, Alfredo

    Despite the promising start, Electronic Commerce has not taken off mostly because of security issues with the communication infrastructures that are popping up threateningly undermining the perceived trustworthiness in Electronic Commerce.

  9. Trust models for efficient communication in Mobile Cloud Computing and their applications to e-Commerce

    NASA Astrophysics Data System (ADS)

    Pop, Florin; Dobre, Ciprian; Mocanu, Bogdan-Costel; Citoteanu, Oana-Maria; Xhafa, Fatos

    2016-11-01

    Managing the large dimensions of data processed in distributed systems that are formed by datacentres and mobile devices has become a challenging issue with an important impact on the end-user. Therefore, the management process of such systems can be achieved efficiently by using uniform overlay networks, interconnected through secure and efficient routing protocols. The aim of this article is to advance our previous work with a novel trust model based on a reputation metric that actively uses the social links between users and the model of interaction between them. We present and evaluate an adaptive model for the trust management in structured overlay networks, based on a Mobile Cloud architecture and considering a honeycomb overlay. Such a model can be useful for supporting advanced mobile market-share e-Commerce platforms, where users collaborate and exchange reliable information about, for example, products of interest and supporting ad-hoc business campaigns

  10. 48 CFR 52.214-5 - Submission of Bids.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... authorized by the solicitation. (e) Bids submitted by electronic commerce shall be considered only if the electronic commerce method was specifically stipulated or permitted by the solicitation. (End of provision...

  11. 48 CFR 4.500 - Scope of subpart.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... MATTERS Electronic Commerce in Contracting 4.500 Scope of subpart. This subpart provides policy and procedures for the establishment and use of electronic commerce in Federal acquisition as required by Section...

  12. The Development Model Electronic Commerce of Regional Agriculture

    NASA Astrophysics Data System (ADS)

    Kang, Jun; Cai, Lecai; Li, Hongchan

    With the developing of the agricultural information, it is inevitable trend of the development of agricultural electronic commercial affairs. On the basis of existing study on the development application model of e-commerce, combined with the character of the agricultural information, compared with the developing model from the theory and reality, a new development model electronic commerce of regional agriculture base on the government is put up, and such key issues as problems of the security applications, payment mode, sharing mechanisms, and legal protection are analyzed, etc. The among coordination mechanism of the region is discussed on, it is significance for regulating the development of agricultural e-commerce and promoting the regional economical development.

  13. Performance Evaluation of Hyperbolic Position Location Technique in Cellular Wireless Networks

    DTIC Science & Technology

    2002-03-13

    number of applications called location - based services which can be defined as value added services that utilize the knowledge of the mobile user’s... Location based services “4-1-1”, location specific information such as local weather, mobile yellow pages, etc. and • Mobile e-commerce, wireless

  14. 48 CFR 14.301 - Responsiveness of bids.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... conditions that do not vary from the terms and conditions of the invitation. (e) Bids submitted by electronic commerce shall be considered only if the electronic commerce method was specifically stipulated or...

  15. Executives "Plug in" to Electronic Commerce

    ERIC Educational Resources Information Center

    Education & Training, 2002

    2002-01-01

    Describes a programme, developed by FT Knowledge and the Wharton School of the University of Pennsylvania, USA, to guide managers through the opportunities and threats presented by electronic commerce. Focuses on areas such as marketing, electronic retailing, pricing, product design, supply chain management and communication. Highlights how the…

  16. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Loss of electronic licensing privileges. 360.108 Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine...

  17. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 3 2014-04-01 2014-04-01 false Loss of electronic licensing privileges. 360.108 Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine...

  18. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 3 2013-04-01 2013-04-01 false Loss of electronic licensing privileges. 360.108 Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine...

  19. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 3 2012-04-01 2012-04-01 false Loss of electronic licensing privileges. 360.108 Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine...

  20. 19 CFR 360.108 - Loss of electronic licensing privileges.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 3 2011-04-01 2011-04-01 false Loss of electronic licensing privileges. 360.108 Section 360.108 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE STEEL IMPORT MONITORING AND ANALYSIS SYSTEM § 360.108 Loss of electronic licensing privileges. Should Commerce determine...

  1. The Impact of Electronic Commerce on the Publishing Industry: Towards a Business Value Complementarity Framework of Electronic Publishing.

    ERIC Educational Resources Information Center

    Scupola, Ada

    1999-01-01

    Discussion of the publishing industry and its use of information and communication technologies focuses on the way in which electronic-commerce technologies are changing and could change the publishing processes, and develops a business complementarity model of electronic publishing to maximize profitability and improve the competitive position.…

  2. Real Electronic Commerce: Smart Cards on the Superhighway.

    ERIC Educational Resources Information Center

    Birch, David

    1997-01-01

    Technologies of payment rather than technologies of connection are the real trigger for the expansion of electronic commerce on the Internet. This article discusses "smart cards," highlighting Mondex, the electronic purse developed in the United Kingdom. Predicts that cash will be replaced by "e-cash," which is cheaper to make,…

  3. A decision technology system for health care electronic commerce.

    PubMed

    Forgionne, G A; Gangopadhyay, A; Klein, J A; Eckhardt, R

    1999-08-01

    Mounting costs have escalated the pressure on health care providers and payers to improve decision making and control expenses. Transactions to form the needed decision data will routinely flow, often electronically, between the affected parties. Conventional health care information systems facilitate flow, process transactions, and generate useful decision information. Typically, such support is offered through a series of stand-alone systems that lose much useful decision knowledge and wisdom during health care electronic commerce (e-commerce). Integrating the stand-alone functions can enhance the quality and efficiency of the segmented support, create synergistic effects, and augment decision-making performance and value for both providers and payers. This article presents an information system that can provide complete and integrated support for e-commerce-based health care decision making. The article describes health care e-commerce, presents the system, examines the system's potential use and benefits, and draws implications for health care management and practice.

  4. A Flexible Electronic Commerce Recommendation System

    NASA Astrophysics Data System (ADS)

    Gong, Songjie

    Recommendation systems have become very popular in E-commerce websites. Many of the largest commerce websites are already using recommender technologies to help their customers find products to purchase. An electronic commerce recommendation system learns from a customer and recommends products that the customer will find most valuable from among the available products. But most recommendation methods are hard-wired into the system and they support only fixed recommendations. This paper presented a framework of flexible electronic commerce recommendation system. The framework is composed by user model interface, recommendation engine, recommendation strategy model, recommendation technology group, user interest model and database interface. In the recommender strategy model, the method can be collaborative filtering, content-based filtering, mining associate rules method, knowledge-based filtering method or the mixed method. The system mapped the implementation and demand through strategy model, and the whole system would be design as standard parts to adapt to the change of the recommendation strategy.

  5. An Exploratory Investigation of Requisite Skills Needed by Developers of E-Commerce Systems.

    ERIC Educational Resources Information Center

    Aladwani, Adel M.

    The aim of this exploratory study is to identify the skills needed by developers of Electronic Commerce (e-Commerce) systems. The paper proposes a framework pertaining to three categories of e-Commerce development knowledge: technical, human, and organizational. The initial findings reveal that there are some 16 possible e-Commerce skills tapping…

  6. Performance Analysis of Hierarchical Group Key Management Integrated with Adaptive Intrusion Detection in Mobile ad hoc Networks

    DTIC Science & Technology

    2016-04-05

    applications in wireless networks such as military battlefields, emergency response, mobile commerce , online gaming, and collaborative work are based on the...www.elsevier.com/locate/peva Performance analysis of hierarchical group key management integrated with adaptive intrusion detection in mobile ad hoc...Accepted 19 September 2010 Available online 26 September 2010 Keywords: Mobile ad hoc networks Intrusion detection Group communication systems Group

  7. The Influence of Power on Trading Partner Trust in Electronic Commerce.

    ERIC Educational Resources Information Center

    Ratnasingam, Pauline

    2000-01-01

    Discussion of power in electronic commerce focuses on the impact of power in the adoption of electronic data interchange. Presents a case study of Ford Motor Company in Australia that shows negative (coercive) power resulted in uncertainty, whereas positive (persuasive) power resulted in open communications, thus building trading partner trust.…

  8. 41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... electronic transportation billing documents to: General Services Administration Transportation Audit Division... 41 Public Contracts and Property Management 3 2014-01-01 2014-01-01 false Who is responsible for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section 102-118.80...

  9. 41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... electronic transportation billing documents to: General Services Administration Transportation Audit Division... 41 Public Contracts and Property Management 3 2012-01-01 2012-01-01 false Who is responsible for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section 102-118.80...

  10. 41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... electronic transportation billing documents to: General Services Administration Transportation Audit Division... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Who is responsible for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section 102-118.80...

  11. 41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... electronic transportation billing documents to: General Services Administration Transportation Audit Division... 41 Public Contracts and Property Management 3 2013-07-01 2013-07-01 false Who is responsible for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section 102-118.80...

  12. 41 CFR 102-118.80 - Who is responsible for keeping my agency's electronic commerce transportation billing records?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... electronic transportation billing documents to: General Services Administration Transportation Audit Division... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false Who is responsible for keeping my agency's electronic commerce transportation billing records? 102-118.80 Section 102-118.80...

  13. 76 FR 77584 - U.S. Department of State Advisory Committee on Private International Law (ACPIL): Public Meeting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-13

    ... validate the identity of individuals who enter Department facilities. The data will be entered into the... electronic transferable records. Working Group IV (international electronic commerce) of the United Nations... http://www.uncitral.org/uncitral/en/commission/working_groups/4Electronic_Commerce.html . The ACPIL...

  14. Agent-based services for B2B electronic commerce

    NASA Astrophysics Data System (ADS)

    Fong, Elizabeth; Ivezic, Nenad; Rhodes, Tom; Peng, Yun

    2000-12-01

    The potential of agent-based systems has not been realized yet, in part, because of the lack of understanding of how the agent technology supports industrial needs and emerging standards. The area of business-to-business electronic commerce (b2b e-commerce) is one of the most rapidly developing sectors of industry with huge impact on manufacturing practices. In this paper, we investigate the current state of agent technology and the feasibility of applying agent-based computing to b2b e-commerce in the circuit board manufacturing sector. We identify critical tasks and opportunities in the b2b e-commerce area where agent-based services can best be deployed. We describe an implemented agent-based prototype system to facilitate the bidding process for printed circuit board manufacturing and assembly. These activities are taking place within the Internet Commerce for Manufacturing (ICM) project, the NIST- sponsored project working with industry to create an environment where small manufacturers of mechanical and electronic components may participate competitively in virtual enterprises that manufacture printed circuit assemblies.

  15. Event-related potentials elicited by social commerce and electronic-commerce reviews.

    PubMed

    Bai, Yan; Yao, Zhong; Cong, Fengyu; Zhang, Linlin

    2015-12-01

    There is an increasing interest regarding the use of electroencephalography (EEG) in social commerce and electronic commerce (e-commerce) research. There are several reviews in the field of social commerce or e-commerce; these have great potential value and mining them is fundamental and significant. To our knowledge, EEG is rarely applied to study these. In this study, we examined the neural correlates of social commerce reviews (SCRs) and e-commerce reviews (ECRs) by using them as stimuli to evoke event-related potentials. All SCRs were from friends through a social media platform, whereas ECRs were from strangers through an e-commerce platform. The experimental design was similar to that of a priming paradigm, and included 40 pairs of stimuli consisting of product information (prime stimulus) and reviews (target stimulus). The results showed that the P300 component was successfully evoked by SCR and ECR stimuli. Moreover, the P300 components elicited by SCRs had higher amplitudes than those elicited by ECRs. These findings indicate that participants paid more attention to SCRs than to ECRs. In addition, the associations between neural responses and reviews in social commerce have the potential to assist companies in studying consumer behaviors, thus permitting them to enhance their social commerce strategies.

  16. Design of multi-language trading system of ethnic characteristic agricultural products based on android

    NASA Astrophysics Data System (ADS)

    Huanqin, Wu; Yasheng, Jin; Yugang, Dai

    2017-06-01

    Under the current situation where Internet technology develops rapidly, mobile E-commerce technology has brought great convenience to our life. Now, the graphical user interface (GUI) of most E-commerce platforms only supports Chinese. Thus, the development of Android client of E-commerce that supports ethnic languages owns a great prospect. The principle that combines front end design and database technology is adopted in this paper to construct the Android client system of E-commerce platforms that supports ethnic languages, which realizes the displaying, browsing, querying, searching, trading and other functions of ethnic characteristic agricultural products on android platforms.

  17. Electronic Commerce Resource Centers. An Industry--University Partnership.

    ERIC Educational Resources Information Center

    Gulledge, Thomas R.; Sommer, Rainer; Tarimcilar, M. Murat

    1999-01-01

    Electronic Commerce Resource Centers focus on transferring emerging technologies to small businesses through university/industry partnerships. Successful implementation hinges on a strategic operating plan, creation of measurable value for customers, investment in customer-targeted training, and measurement of performance outputs. (SK)

  18. Agents Based e-Commerce and Securing Exchanged Information

    NASA Astrophysics Data System (ADS)

    Al-Jaljouli, Raja; Abawajy, Jemal

    Mobile agents have been implemented in e-Commerce to search and filter information of interest from electronic markets. When the information is very sensitive and critical, it is important to develop a novel security protocol that can efficiently protect the information from malicious tampering as well as unauthorized disclosure or at least detect any malicious act of intruders. In this chapter, we describe robust security techniques that ensure a sound security of information gathered throughout agent’s itinerary against various security attacks, as well as truncation attacks. A sound security protocol is described, which implements the various security techniques that would jointly prevent or at least detect any malicious act of intruders. We reason about the soundness of the protocol usingSymbolic Trace Analyzer (STA), a formal verification tool that is based on symbolic techniques. We analyze the protocol in key configurations and show that it is free of flaws. We also show that the protocol fulfils the various security requirements of exchanged information in MAS, including data-integrity, data-confidentiality, data-authenticity, origin confidentiality and data non-repudiability.

  19. Implications of Electronic Commerce for Fiscal Policy

    NASA Astrophysics Data System (ADS)

    Goolsbee, Austan

    In this chapter, I will consider both sides of the relationship between electronic commerce and fiscal policy. For the impact of electronic commerce on fiscal policy, I will pay particular attention to the potential sales-tax revenue losses. The data suggest that the potential losses are actually modest over the next several years. I will also consider the reverse relationship - how fiscal policy affects Internet commerce. Here the evidence suggests that taxes have a sizable effect. I point out, though, that this only supports special treatment if there is some positive externality. Without one, the tax system will lead to excessive online buying to avoid taxes. I will then deal the neglected issue of taxes and Internet access, which can create large deadweight costs both because demand may be price-sensitive and because taxes can slow the spread of new technologies. Finally, I offer some discussion of the international context of taxes and the Internet and the international temptations to raise rates on E-commerce.

  20. "Emmerce" Immersion: The Emerging World of Electronic Commerce.

    ERIC Educational Resources Information Center

    Chuck, Lysbeth

    1997-01-01

    Discusses the effects of Web-based electronic commerce, or "emmerce," on online user. Defines "cookies" and Persistent Client State HTTP Cookies or "magic cookies" on Macintosh computers. Examines underlying technologies that make up "cashless" transactions; growing demand for micropayments; CyberCash,…

  1. An eCommerce Development Case: Your Company's eCommerce Web Site

    ERIC Educational Resources Information Center

    Ballenger, Robert M.

    2007-01-01

    This case provides a real-world semester long project-oriented case study for students enrolled in an electronic commerce course that has a significant development component. The case provides the technical framework in the form of functional requirements for students to design and build a fully functional transaction processing e-commerce Web…

  2. A wireless trust model for healthcare.

    PubMed

    Wickramasinghe, Nilmini; Misra, Santosh K

    2004-01-01

    In today's context of escalating costs, managed care, regulations such as the Health Insurance Portability and Accountability Act (HIPAA) and a technology savvy patient, the healthcare industry can no longer be complacent regarding embracing technologies to enable better, more effective and efficient practice management. In such an environment, many healthcare organisations are turning to m-commerce or wireless solutions. These solutions, in particular the mobile electronic patient record, have many advantages over their wired counterparts, including significant cost advantages, higher levels of physician acceptance, more functionalities as well as enabling easy accessibility to healthcare in remote geographic regions, however, they also bring with them challenges of their own. One such major challenge is security. To date, few models exist that help establish an appropriate framework, in the context of wireless in healthcare, in which to understand and evaluate all the security issues let alone facilitate the development of systematic and robust solutions. Our paper addresses this need by outlining an appropriate mobile trust model for such a scenario in healthcare organisations.

  3. New Rage on Campus: E-Commerce Degrees.

    ERIC Educational Resources Information Center

    Dobbs, Kevin

    1999-01-01

    As electronic commerce expands, higher education attempts to keep up with the demand for instruction. Some universities have added a concentration in e-commerce to their master of business administration program and others are adding majors, certifications, or degrees. (JOW)

  4. E-Commerce Content in Business School Curriculum: Opportunities and Challenges.

    ERIC Educational Resources Information Center

    Krovi, Ravindra; Vijayaraman, B. S.

    2000-01-01

    Explores the opportunities and challenges of introducing e-commerce concepts in business school curriculums. Examines the knowledge components of electronic commerce, including Web-based technology skills; and discusses the need for faculty training and development. (Author/LRW)

  5. E-Competent Australia: Report on the Impact of E-Commerce on the National Training Framework.

    ERIC Educational Resources Information Center

    Mitchell, John

    The impact of electronic commerce (e-commerce) on Australia's National Training Framework (NTF) was studied for the purpose of forecasting future demand for training in areas related to e-commerce and identifying appropriate responses by the NTF committee. The following were among the study's main data collection activities: reviews of the…

  6. White Men in Quarantine: Disease, Race, Commerce and Mobility in the Pacific, 1872

    PubMed Central

    Foxhall, Katherine

    2017-01-01

    In July 1872, the steamship Hero underwent quarantine at Sydney’s North Head after a case of smallpox was diagnosed. This article brings together the histories of quarantine, white subjectivity and Pacific mobility through an analysis of the Loganiana newspaper produced by the passengers of the Hero during their confinement. The Loganiana provides a unique insight into the formation of white identities through discussions of race, commerce, science and inter-colonial politics. The case provides an important perspective on a transformative period in Australia’s border history, and also illuminates the tensions accompanying the transition from an older imperial order to political autonomy in the nineteenth-century Pacific. PMID:29888345

  7. No Small Change: E-Commerce in Distance Education.

    ERIC Educational Resources Information Center

    Robinson, Evan T.

    2002-01-01

    Explains how electronic commerce (e-commerce) principles can be useful for distance education in higher education. Topics include business-to-business and business-to-consumer models; entering the marketplace; understanding the institution's capabilities; knowing the competition; and sound financial models. (LRW)

  8. Electronic Commerce on the Internet.

    DTIC Science & Technology

    1994-03-01

    electronic commerce , where companies transact business spontaneously over the Internet. In restructuring its procurement processes, The Federal Government has a unique opportunity to exploit this electronic marketplace, and to influence its development in ways that benefit us all. This report describes a vision of the electronic marketplace, the requirements it must satisfy, an architecture for addressing those requirements, and a graceful migration path to the marketplace from current EDI technology and practice. It identifies five key concepts for government

  9. Business Students Flock to Courses on Electronic Commerce.

    ERIC Educational Resources Information Center

    Mangan, Katherine S.

    1999-01-01

    Business schools across the country are specializing in electronic commerce, in which teams of students create online businesses available on the Internet only to participating institutions. The courses offer students an opportunity to see how an online retailing business is conducted, including creating and maintaining Web sites, advertising…

  10. The First World Congress on the Management of Electronic Commerce: Review and Commentary.

    ERIC Educational Resources Information Center

    Bontis, Nick; De Castro, Akemi

    2000-01-01

    Summarizes some key findings of academic papers presented at the First World Congress on the Management of Electronic Commerce (January, 2000, Hamilton, Ontario, Canada). Outlines two meta-management issues that surfaced: taking a strategic approach to Internet ventures and considering infrastructure design during implementation. Highlights…

  11. 15 CFR 30.6 - Electronic Export Information data elements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... elements. 30.6 Section 30.6 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... Electronic Export Information data elements. The information specified in this section is required for shipments transmitted to the AES. The data elements identified as “mandatory” shall be reported for each...

  12. Electronic Commerce, Digital Information, and the Firm.

    ERIC Educational Resources Information Center

    Rosenbaum, Howard

    2000-01-01

    Discussion of the social context of electronic commerce (ecommerce) focuses on information imperatives, or rules that are critical for ecommerce firms. Concludes with a discussion of the organizational changes that can be expected to accompany the incorporation of these imperatives into the mission and core business processes of ecommerce firms.…

  13. A Training Framework for the Department of Defense Public Key Infrastructure

    DTIC Science & Technology

    2001-09-01

    and the growth of electronic commerce within the Department of Defense (DoD) has led to the development and implementation of the DoD Public Key...also grown within the Department of Defense. Electronic commerce and business to business transactions have become more commonplace and have

  14. Process Redesign of the Norwegian Navy Materiel Command’s Replenishment of Inventory Items

    DTIC Science & Technology

    1997-12-01

    procurement offices into one. The second proposal is to introduce, and use electronic commerce in the replenishment process. It is concluded that both...redesign proposals will reduce administrative lead-time, variability and hence cost. Benefits from an introduction of electronic commerce will yield a yearly

  15. 75 FR 13131 - General Services Administration Acquisition Regulation; Submission for OMB Review; GSA Advantage...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-18

    ... Services Administration Acquisition Regulation; Submission for OMB Review; GSA Advantage![reg] and... requirement regarding GSA Advantage![reg] and Electronic Commerce-FACNET. A request for public comments was..., Washington, DC 20405. Please cite OMB Control No. 3090-00XX, GSA Advantage![reg] and Electronic Commerce...

  16. 48 CFR 4.502 - Policy.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... MATTERS Electronic Commerce in Contracting 4.502 Policy. (a) The Federal Government shall use electronic commerce whenever practicable or cost-effective. The use of terms commonly associated with paper transactions (e.g., “copy,” “document,” “page,” “printed,” “sealed envelope,” and “stamped”) shall not be...

  17. A Business Case for Electronic Commerce

    DTIC Science & Technology

    1990-09-01

    Electronic Commerce . This report presents the results of that examination. Based upon an examination of 16 key documents, we estimate that DoD could realize direct and indirect cost savings of almost $1.2 billion over a 10-year period by replacing these manually processed documents with their electronic equivalents. To achieve those savings, DoD would need to make investments totaling approximately $80 million in new systems and procedures. (Author)

  18. 76 FR 48801 - Submission for OMB Review; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-09

    ... DEPARTMENT OF COMMERCE Submission for OMB Review; Comment Request The Department of Commerce will... responsibility over its portfolio. The revision involves a change in reporting including 100% electronic... Clearance Officer, (202) 482-0266, Department of Commerce, Room 6616, 14th and Constitution Avenue, NW...

  19. E-Commerce and Privacy: Conflict and Opportunity.

    ERIC Educational Resources Information Center

    Farah, Badie N.; Higby, Mary A.

    2001-01-01

    Electronic commerce has intensified conflict between businesses' need to collect data and customers' desire to protect privacy. Web-based privacy tools and legislation could add to the costs of e-commerce and reduce profitability. Business models not based on profiling customers may be needed. (SK)

  20. 15 CFR 711.3 - Compliance review.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Compliance review. 711.3 Section 711.3 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF... REGARDING DECLARATION, REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING OF...

  1. 12 CFR 609.935 - Business planning.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.935 Business planning. When engaging in E-commerce, the business plan required under part 618 of this chapter, subpart J, must describe the E-commerce initiative, including intended...

  2. 12 CFR 609.935 - Business planning.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.935 Business planning. When engaging in E-commerce, the business plan required under part 618 of this chapter, subpart J, must describe the E-commerce initiative, including intended...

  3. 12 CFR 609.935 - Business planning.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.935 Business planning. When engaging in E-commerce, the business plan required under part 618 of this chapter, subpart J, must describe the E-commerce initiative, including intended...

  4. 12 CFR 609.935 - Business planning.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.935 Business planning. When engaging in E-commerce, the business plan required under part 618 of this chapter, subpart J, must describe the E-commerce initiative, including intended...

  5. 12 CFR 609.935 - Business planning.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.935 Business planning. When engaging in E-commerce, the business plan required under part 618 of this chapter, subpart J, must describe the E-commerce initiative, including intended...

  6. The Role of Human Web Assistants in E-Commerce: An Analysis and a Usability Study.

    ERIC Educational Resources Information Center

    Aberg, Johan; Shahmehri, Nahid

    2000-01-01

    Discusses electronic commerce and presents the concept of Web assistants, human assistants working in an electronic Web shop. Presents results of a usability study of a prototype adaptive Web assistant system that show users were enthusiastic about the concept of Web assistants and its implications. (Author/LRW)

  7. 48 CFR 15.208 - Submission, modification, revision, and withdrawal of proposals.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... solicitation. Offerors may use any transmission method authorized by the solicitation (i.e., regular mail, electronic commerce, or facsimile). If no time is specified in the solicitation, the time for receipt is 4:30... not unduly delay the acquisition; and— (i) If it was transmitted through an electronic commerce method...

  8. 15 CFR 335.5 - Licenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Licenses. 335.5 Section 335.5 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) INTERNATIONAL TRADE... its behalf by making such an authorization in writing or by electronic notice to the importer and...

  9. 15 CFR 711.6 - Where to obtain forms.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Where to obtain forms. 711.6 Section 711.6 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU... INFORMATION REGARDING DECLARATION, REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING...

  10. 15 CFR 766.13 - Hearings.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Hearings. 766.13 Section 766.13 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF... taken by reporter or by electronic recording, transcribed and filed with the administrative law judge. A...

  11. Investigating the effect of m-commerce design usability on customers' trust

    NASA Astrophysics Data System (ADS)

    Hussain, Azham Bin; Mahmood, Alaa Thamer; Naser, Raed Kamil

    2017-10-01

    User experience may vary from one user to another based on the design characteristics for processing a certain task. Our review of the literature revealed that there is a noticeable lack of studies on the effect of mobile or m-commerce design usability on customers' trust to perform certain activities. We investigated the effect of m-commerce design usability in terms of navigability, supportability, readability, creditability, and content relevant. A close-ended questionnaire was distributed to 20 customers who were asked to perform some tasks. The result showed that majority of the participants found m-commerce design usability to influence their trust of the app. The mentioned usability elements were found to positively influence customers' trust except for supportability. Our findings provide some insights to the m-commerce designers and developers and extend the current understanding about the potential of design usability in explaining users' usage behavior.

  12. Perceived Compatibility and the Adoption of B2C E-Commerce by Non-buyers

    NASA Astrophysics Data System (ADS)

    Hernández-García, Ángel; Iglesias-Pradas, Santiago; Chaparro-Peláez, Julián; Pascual-Miguel, Félix

    The purpose of this article is to study the factors which affect the intention to buy online for users who have never made any prior purchase using the electronic channel, with special focus to the role of perceived compatibility. To do so, an adoption model for e-commerce was proposed on the basis of the Technology Adoption Model (TAM) and the Innovations Diffusion Theory (IDT). In order to validate the model, data gathered amongst Spanish consumers who had no experience using e-commerce, were analyzed using the partial least squares (PLS) method. The results have demonstrated the importance of perceived compatibility as a significant factor to foster non-buyers' adoption of electronic business-to-consumer e-commerce (eB2C).

  13. The Influence of Information Ecology on E-Commerce Initiatives.

    ERIC Educational Resources Information Center

    Detlor, Brian

    2001-01-01

    Explores the influence of an organization's information ecology, or internal information environment, on a firm's electronic commerce initiatives and plans. Reports results from a case study investigation on the adoption and use of an e-commerce initiative, a corporate portal, by participants at a large Canadian company. (Author/LRW)

  14. Ferment in Business Education: E-Commerce Master's Programs.

    ERIC Educational Resources Information Center

    Durlabhji, Subhash; Fusilier, Marcelline R.

    2002-01-01

    A review of curriculum and course descriptions of 67 Web-based electronic commerce master's programs showed that the number of programs grew 76% over 8 months. More nontechnical than technology-centered courses are offered. Business schools are apparently viewing e-commerce as a completely new discipline. (Contains 26 references.) (SK)

  15. 15 CFR 711.4 - Assistance in determining your obligations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Assistance in determining your obligations. 711.4 Section 711.4 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade... ELECTRONIC FILING OF DECLARATIONS AND REPORTS § 711.4 Assistance in determining your obligations. (a...

  16. 15 CFR 336.5 - Licenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Licenses. 336.5 Section 336.5 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) INTERNATIONAL TRADE... authorization in writing or by electronic notice to the importer and providing a copy of such authorization to...

  17. 15 CFR 719.14 - Hearings.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Hearings. 719.14 Section 719.14 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF... hearing and of any other oral proceedings will be taken by reporter or by electronic recording, and filed...

  18. 15 CFR 748.1 - General provisions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false General provisions. 748.1 Section 748.1 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU... consignee certifications, contained in electronic or paper form(s) are incorporated as part of the EAR. For...

  19. 15 CFR 785.12 - Hearings.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Hearings. 785.12 Section 785.12 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF... will be taken by reporter or by electronic recording, and filed with the ALJ. If any party wishes to...

  20. An Analytical Framework for Evaluating E-Commerce Business Models and Strategies.

    ERIC Educational Resources Information Center

    Lee, Chung-Shing

    2001-01-01

    Considers electronic commerce as a paradigm shift, or a disruptive innovation, and presents an analytical framework based on the theories of transaction costs and switching costs. Topics include business transformation process; scale effect; scope effect; new sources of revenue; and e-commerce value creation model and strategy. (LRW)

  1. E-Business Education: A Quantitative Review of Program Attributes and Offerings.

    ERIC Educational Resources Information Center

    Novitzki, James E.

    This paper reviews several previous studies of course offerings in a large number of Electronic Business/Commerce concentrations in both MBA and MS programs. Results from these earlier studies indicate that there is no apparent consensus in what knowledge is core to the Electronic Business/Commerce concentration. This study takes data from these…

  2. DoD Electronic Commerce (EC)/Electronic Data Interchange (EDI) in Contracting Report

    DTIC Science & Technology

    1993-12-20

    Electronic Commerce (EC)/Electronic Data Interchange (EDI) to support Department of Defense (DoD) procurement processes has been under consideration for some time. A 1988 Deputy Secretary of Defense memo calls for maximum use of EDI, based on 10 years of DoD EDI investigation and experiments. In 1990, Defense Management Review Decision 941 stated, ’The strategic goal of DoD’s current efforts is to provide the department with the capability to initiate, conduct, and maintain its external business related transactions and internal logistics, contracting, and

  3. Secure electronic commerce communication system based on CA

    NASA Astrophysics Data System (ADS)

    Chen, Deyun; Zhang, Junfeng; Pei, Shujun

    2001-07-01

    In this paper, we introduce the situation of electronic commercial security, then we analyze the working process and security for SSL protocol. At last, we propose a secure electronic commerce communication system based on CA. The system provide secure services such as encryption, integer, peer authentication and non-repudiation for application layer communication software of browser clients' and web server. The system can implement automatic allocation and united management of key through setting up the CA in the network.

  4. Enabling Integrated Decision Making for Electronic-Commerce by Modelling an Enterprise's Sharable Knowledge.

    ERIC Educational Resources Information Center

    Kim, Henry M.

    2000-01-01

    An enterprise model, a computational model of knowledge about an enterprise, is a useful tool for integrated decision-making by e-commerce suppliers and customers. Sharable knowledge, once represented in an enterprise model, can be integrated by the modeled enterprise's e-commerce partners. Presents background on enterprise modeling, followed by…

  5. 15 CFR 730.5 - Coverage of more than exports.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., shipments from a U.S. foreign trade zone, and the electronic transmission of non-public data that will be... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Coverage of more than exports. 730.5 Section 730.5 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued...

  6. What Constitutes Adoption of the Web: A Methodological Problem in Assessing Adoption of the World Wide Web for Electronic Commerce.

    ERIC Educational Resources Information Center

    White, Marilyn Domas; Abels, Eileen G.; Gordon-Murnane, Laura

    1998-01-01

    Reports on methodological developments in a project to assess the adoption of the Web by publishers of business information for electronic commerce. Describes the approach used on a sample of 20 business publishers to identify five clusters of publishers ranging from traditionalist to innovator. Distinguishes between adopters and nonadopters of…

  7. Middle and small manufacture enterprise e-commerce application systems research

    NASA Astrophysics Data System (ADS)

    Zhu, Mingqiang

    2017-04-01

    With the extensive application of electronic commerce in manufacturing enterprises, e-commerce the influence of operation is increasingly becoming the focus of academic and business circles on the basis, this paper probes into the influence of e-commerce on the operation of the enterprise for the manufacturing enterprises to correctly understand the performance of e-commerce to provide a little help. The article first analyses e-commerce new environment on medium manufacturing enterprise requires, current medium manufacturing enterprise achieved e-commerce has many difficult, should e-commerce correctly awareness, and full planning, and points step implementation, and e-commerce and enterprise integration, and construction features of e-commerce platform, and procurement and supply chain of collaborative management, and attention customer management, and variety e-commerce of mode mixed, and flexible effective operations, and logistics socialization, views, focus on small and medium manufacturing enterprises in e-commerce applications to be innovative in design, production and management of agile and flexible production strategies.

  8. An Empirical Comparison of Navigation Effect of Pull-Down Menu Style on The World Wide Web.

    ERIC Educational Resources Information Center

    Yu, Byeong-Min; Han, Sungwook

    Effective navigation is becoming more and more critical to the success of electronic commerce (E-commerce). It remains a challenge for educational technologists and Web designers to develop Web systems that can help customers find products or services without experiencing disorientation problems and cognitive overload. Many E-commerce Web sites…

  9. The Development of B2C E-Commerce in Greece: Current Situation and Future Potential.

    ERIC Educational Resources Information Center

    Kardaras, Dimitris; Papathanassiou, Eleutherios

    2000-01-01

    Reports on the results of a survey of 120 companies in Greece that evaluated the potential of business to customer (B2C) Internet applications and investigated how the Internet and e-commerce can offer new opportunities for businesses to improve their customers' satisfaction. Discusses electronic commerce problems and future technology. (Contains…

  10. Developing Online Trust in Electronic Commerce: A Generational Cohort Study in Puerto Rico

    ERIC Educational Resources Information Center

    Lopez Rivera, Ibrahim

    2016-01-01

    Developing online trust is crucial for e-commerce vendors in order to attract consumers and develop long-term relationships with existing ones. We intended to investigate if consumers from different generational cohorts differ on how they develop online trust when utilizing e-commerce websites. Through the analysis of empirical data collected from…

  11. Native American Business Participation in E-Commerce: An Assessment of Technical Assistance and Training Needs.

    ERIC Educational Resources Information Center

    Bregendahl, Corry; Flora, Cornelia

    A combined outreach and research initiative addressed the participation of Native American business owners in electronic commerce. E-commerce can provide many benefits to producers and consumers but does not ensure unmitigated economic success. It is only one part of a development process leading to achievement of tribes' broader social goals,…

  12. 15 CFR 30.45 - General statement of requirements for the filing of carrier manifests with proof of filing...

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false General statement of requirements for the filing of carrier manifests with proof of filing citations for the electronic submission of export information or exemption legends when Electronic Export Information filing is not required. 30.45 Section 30.45 Commerce and Foreign Trade...

  13. 77 FR 15605 - Mobile Commerce and Personalization Promotion

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ... automation mailings. Postage Payment Methods Postage payment methods will be restricted to permit imprint.... 2. Standard Mail (including Nonprofit) letters or flats. d. Postage must be paid by permit imprint...

  14. Pre-Paid Mobile Device Identification Act

    THOMAS, 111th Congress

    Sen. Schumer, Charles E. [D-NY

    2010-05-26

    Senate - 05/26/2010 Read twice and referred to the Committee on Commerce, Science, and Transportation. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  15. The application of similar image retrieval in electronic commerce.

    PubMed

    Hu, YuPing; Yin, Hua; Han, Dezhi; Yu, Fei

    2014-01-01

    Traditional online shopping platform (OSP), which searches product information by keywords, faces three problems: indirect search mode, large search space, and inaccuracy in search results. For solving these problems, we discuss and research the application of similar image retrieval in electronic commerce. Aiming at improving the network customers' experience and providing merchants with the accuracy of advertising, we design a reasonable and extensive electronic commerce application system, which includes three subsystems: image search display subsystem, image search subsystem, and product information collecting subsystem. This system can provide seamless connection between information platform and OSP, on which consumers can automatically and directly search similar images according to the pictures from information platform. At the same time, it can be used to provide accuracy of internet marketing for enterprises. The experiment shows the efficiency of constructing the system.

  16. The Application of Similar Image Retrieval in Electronic Commerce

    PubMed Central

    Hu, YuPing; Yin, Hua; Han, Dezhi; Yu, Fei

    2014-01-01

    Traditional online shopping platform (OSP), which searches product information by keywords, faces three problems: indirect search mode, large search space, and inaccuracy in search results. For solving these problems, we discuss and research the application of similar image retrieval in electronic commerce. Aiming at improving the network customers' experience and providing merchants with the accuracy of advertising, we design a reasonable and extensive electronic commerce application system, which includes three subsystems: image search display subsystem, image search subsystem, and product information collecting subsystem. This system can provide seamless connection between information platform and OSP, on which consumers can automatically and directly search similar images according to the pictures from information platform. At the same time, it can be used to provide accuracy of internet marketing for enterprises. The experiment shows the efficiency of constructing the system. PMID:24883411

  17. Factors Affecting Business-to-Business Electronic Commerce Success: An Empirical Investigation

    ERIC Educational Resources Information Center

    Chen, Chun-I Philip

    2010-01-01

    It is generally believed that Business to Business (B2B) e-commerce has a great impact on business performance improvement. Considerable research also shows that another dependent variable, B2B e-commerce success, can be a good overall measure of B2B systems. This paper investigated and examined the impact of several factors, which are either…

  18. Ending Mobile Phone Welfare Act of 2013

    THOMAS, 113th Congress

    Sen. Vitter, David [R-LA

    2013-05-07

    Senate - 05/07/2013 Read twice and referred to the Committee on Commerce, Science, and Transportation. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  19. Analyzing the Academic Research Trends by Using University Digital Resources: A Bibliometric Study of Electronic Commerce in China

    ERIC Educational Resources Information Center

    Fatima, Anam; Abbas, Asad; Ming, Wan; Zaheer, Ahmad Nawaz; Akhtar, Masood-ul-Hassan

    2017-01-01

    Technology plays a vital role in every field of life especially in business and education. Electronic commerce (EC) begins in the year of 1991 right after internet was introduced for commercial use. It is known to be the 12th five years' plan (2011 to 2015) of Chinese Ministry of Industry and Information Technology. The main "objective"…

  20. An Electronic Commerce Course for Undergraduate I.S. Majors: A Review of Current EC Courses and a Course Outline.

    ERIC Educational Resources Information Center

    Dutt, James S.

    Although electronic commerce (EC) has been a reality for more than two decades, interest in EC has exploded within the past three years due to the increased business use of the Internet and the World Wide Web. While companies are increasingly looking for individuals with knowledge of and/or a background in EC, they are finding that most…

  1. Digital contract approach for consistent and predictable multimedia information delivery in electronic commerce

    NASA Astrophysics Data System (ADS)

    Konana, Prabhudev; Gupta, Alok; Whinston, Andrew B.

    1997-01-01

    A pure 'technological' solution to network quality problems is incomplete since any benefits from new technologies are offset by the demand from exponentially growing electronic commerce ad data-intensive applications. SInce an economic paradigm is implicit in electronic commerce, we propose a 'market-system' approach to improve quality of service. Quality of service for digital products takes on a different meaning since users view quality of service differently and value information differently. We propose a framework for electronic commerce that is based on an economic paradigm and mass-customization, and works as a wide-area distributed management system. In our framework, surrogate-servers act as intermediaries between information provides and end- users, and arrange for consistent and predictable information delivery through 'digital contracts.' These contracts are negotiated and priced based on economic principles. Surrogate servers pre-fetched, through replication, information from many different servers and consolidate based on demand expectations. In order to recognize users' requirements and process requests accordingly, real-time databases are central to our framework. We also propose that multimedia information be separated into slowly changing and rapidly changing data streams to improve response time requirements. Surrogate- servers perform the tasks of integration of these data streams that is transparent to end-users.

  2. Electronic Commerce "in the dark"

    NASA Astrophysics Data System (ADS)

    Buzzi, Maria Claudia; Buzzi, Marina; Leporini, Barbara; Senette, Caterina

    The widespread diffusion of electronic commerce offers a great opportunity for blind people. We describe the results of an electronic survey carried out with 22 blind and 22 sighted users in order to understand the difficulties and obstacles they experience shopping on-line, and solicit their expectations and suggestions for making the interaction simpler and more satisfying. Results show that blind users shop on-line much less than their sighted counterparts, since they encounter more difficulties not only when making a purchase, but even in the navigation phase preceding the commercial transaction. Complex layouts and unstructured content can prevent an e-transaction from being successfully completed. Furthermore, security, privacy and trustiness, common concerns for all consumers, also impact on the fear of buying via Internet for the visually impaired. Poor usability leads to a potential loss of revenue for on-line companies and a lost opportunity to increase a blind person's independence. Providing simpler, more understandable UIs would benefit all users and fuel the expansion of electronic commerce.

  3. The research on electronic commerce security payment system based on set protocol

    NASA Astrophysics Data System (ADS)

    Guo, Hongliang

    2012-04-01

    With the rapid development of network technology, online transactions have become more and more common. In this paper, we firstly introduce the principle and the basic principal and technical foundation of SET, and then we analyze the progress of designing a system in the foundation of the procedure of the electronic business based on SET. On this basis, we design a system of the Payment System for Electronic Business. It will not only take on crucial realism signification for large-scale, medium-sized and mini-type corporations, but also provide guide meaning with programmer and design-developer to realize Electronic Commerce (EC).

  4. Validating Advanced Supply-Chain Technology (VAST)

    DTIC Science & Technology

    2004-06-01

    Use philosophy that is so important in today’s procurement environment. Electronic Data Interchange (EDI) and eCommerce is proving to be a major...the STEPwise methodology are particularly encouraging. These new EDI and eCommerce technologies are becoming more important with the customers who...critical assumption is based upon the 55 fact that eCommerce is growing throughout the commercial and military sector and those who are not

  5. 75 FR 51239 - University of Massachusetts Amherst, et al.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-19

    ... DEPARTMENT OF COMMERCE International Trade Administration University of Massachusetts Amherst, et... Commerce, 14th and Constitution Avenue., NW., Washington, DC. Docket Number: 10-044. Applicant: University.... Applicant: Appalachian State University, Boone, NC 28608. Instrument: Electron Microscope. Manufacturer...

  6. Archaeological Testing of the Confederate Obstructions. 1Mb28, Mobile Harbor, Alabama.

    DTIC Science & Technology

    1985-07-01

    Historical Society of America, Staten Island, New York. 58 - . . -. . Maury, Dabney H. - 1864 Statement Concerning Placement of Torpedoes Across...Minnesota Historical Society , St. Paul. Merrill, Col. W. E. 1866 Report on the Present Condition of the Harbor of Mobile. MSon file, National...194. Polk, James K. 1971 Pensacola Commerce and Industry: 1821-1860. MSon file, Pensacola Historical Society , Pensacola. Scruggs, J.H., Jr. 1953

  7. E-Commerce May Help Colleges Cut Costs and Paperwork.

    ERIC Educational Resources Information Center

    Olsen, Florence

    2000-01-01

    Describes the increasing trend of incorporating electronic commerce methods to purchasing systems at colleges and universities. Provides examples from the University of Pennsylvania, Harvard University (Massachusetts), California State University at Fullerton, and the University of California at Los Angeles. (DB)

  8. GHX, Broadlane form latest e-commerce linkup.

    PubMed

    2002-08-01

    Broadlane agreed in June to connect its electronic commerce system to the supplier-owned site run by GHX. As a result, contract compliance could either improve or be more easily evaded, depending on hospitals' response to the wider choice of suppliers.

  9. Public Key Infrastructure Study

    DTIC Science & Technology

    1994-04-01

    commerce. This Public Key Infrastructure (PKI) study focuses on the United States Federal Government operations, but also addresses national and global ... issues in order to facilitate the interoperation of protected electronic commerce among the various levels of government in the U.S., private citizens

  10. A compact, low-loss, tunable phase shifter on defect mitigated dielectrics up to 40 GHz

    NASA Astrophysics Data System (ADS)

    Orloff, Nathan; Long, Christian; Lu, Xifeng; Nair, Hari; Dawley, Natalie; Schlom, Darrell; Booth, James

    With the emergence of the internet-of-things and increased connectivity of modern commerce, consumers have driven demand for wireless spectrum beyond current capacity and infrastructure capabilities. One way the telecommunications industry is addressing this problem is by pushing front-end electronics to higher frequencies, introducing carrier aggregation schemes, and developing spectrum-sharing techniques. Some of these solutions require frequency agile components that are vastly different from what is in today's marketplace. Perhaps the most basic and ubiquitous component in front-end electronics is the phase shifter. Phase shifters are particularly important for compact beam-forming antennas that may soon appear in commercial technology. Here, we demonstrate a compact, tunable phase shifter with very low insertion loss up to 40 GHz on a defect mitigated tunable dielectric. We demonstrate performance compared to barium-doped strontium titanate phase shifters. Such phase shifters could potentially meet the stringent size and performance characteristics demanded by telecommunications industry, readily facilitating massive multiple-input multiple-output antennas in the next-generation of mobile handsets.

  11. E-Commerce Infusion into Business Education--Encompassing the Realities of an Emerging Business Model.

    ERIC Educational Resources Information Center

    Morrison, James L.; Oladunjoye, Ganiyu Titi

    2002-01-01

    A survey of 287 business faculty found that few were infusing electronic commerce topics into existing curricula despite its growing use in business. Responses were similar regardless of faculty gender, region, and program size or level. (SK)

  12. The Internet: Past, Present, and Future.

    ERIC Educational Resources Information Center

    Galbreath, Jeremy, Ed.

    1997-01-01

    Examines the "reality behind the hype" surrounding the Internet. Discusses its early development; growth and present state; and key applications, including e-mail, voice/video telephony, integrated messaging, electronic commerce, the World Wide Web, and Web commerce, Intranet, Extranet; education and training; security; ownership; and…

  13. 12 CFR 609.920 - Interpretations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... E-commerce as long as the safeguards of E-SIGN are met and its exceptions recognized. Generally, an... and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions § 609.920 Interpretations. (a) E-SIGN preempts most statutes and regulations, including the Act...

  14. 12 CFR 609.920 - Interpretations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... E-commerce as long as the safeguards of E-SIGN are met and its exceptions recognized. Generally, an... and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions § 609.920 Interpretations. (a) E-SIGN preempts most statutes and regulations, including the Act...

  15. 12 CFR 609.920 - Interpretations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... E-commerce as long as the safeguards of E-SIGN are met and its exceptions recognized. Generally, an... and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions § 609.920 Interpretations. (a) E-SIGN preempts most statutes and regulations, including the Act...

  16. 12 CFR 609.920 - Interpretations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... E-commerce as long as the safeguards of E-SIGN are met and its exceptions recognized. Generally, an... and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions § 609.920 Interpretations. (a) E-SIGN preempts most statutes and regulations, including the Act...

  17. 12 CFR 609.920 - Interpretations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... E-commerce as long as the safeguards of E-SIGN are met and its exceptions recognized. Generally, an... and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Interpretations and Definitions § 609.920 Interpretations. (a) E-SIGN preempts most statutes and regulations, including the Act...

  18. 47 CFR 54.680 - Validity of electronic signatures.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 3 2013-10-01 2013-10-01 false Validity of electronic signatures. 54.680... Validity of electronic signatures. (a) For the purposes of this subpart, an electronic signature (defined by the Electronic Signatures in Global and National Commerce Act, as an electronic sound, symbol, or...

  19. 47 CFR 54.419 - Validity of electronic signatures.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 3 2013-10-01 2013-10-01 false Validity of electronic signatures. 54.419... electronic signatures. (a) For the purposes of this subpart, an electronic signature, defined by the Electronic Signatures in Global and National Commerce Act, as an electronic sound, symbol, or process...

  20. 47 CFR 54.419 - Validity of electronic signatures.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 3 2012-10-01 2012-10-01 false Validity of electronic signatures. 54.419... electronic signatures. (a) For the purposes of this subpart, an electronic signature, defined by the Electronic Signatures in Global and National Commerce Act, as an electronic sound, symbol, or process...

  1. 47 CFR 54.680 - Validity of electronic signatures.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 3 2014-10-01 2014-10-01 false Validity of electronic signatures. 54.680... Validity of electronic signatures. (a) For the purposes of this subpart, an electronic signature (defined by the Electronic Signatures in Global and National Commerce Act, as an electronic sound, symbol, or...

  2. 47 CFR 54.419 - Validity of electronic signatures.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 3 2014-10-01 2014-10-01 false Validity of electronic signatures. 54.419... electronic signatures. (a) For the purposes of this subpart, an electronic signature, defined by the Electronic Signatures in Global and National Commerce Act, as an electronic sound, symbol, or process...

  3. Electronic toll collection/electronic screening interoperability pilot project : final report synthesis

    DOT National Transportation Integrated Search

    2005-12-02

    In 1998, ITS America established a Blue Ribbon Panel on electronic commerce to study the convergence of transportation and electronic payment systems. Panel members included senior managers from government, toll agencies, motor carrier industry, and ...

  4. Building an Economical and Sustainable Lunar Infrastructure to Enable Lunar Science and Space Commerce

    NASA Astrophysics Data System (ADS)

    Zuniga, A. F.; Turner, M. F.; Rasky, D. J.

    2017-10-01

    A new concept study was initiated to examine and analyze architecture concepts for an economical and sustainable lunar infrastructure system that can extend the life, functionality, and distance traveled of surface mobility missions.

  5. Role of Electronic-Commerce in the Growth of Tunisian Economy

    DTIC Science & Technology

    2002-09-01

    Social Indicators. (From: Tunisian National Statistical Institute June 2002 & Tunisia –Key Economic and Social Indicators January 2000...in their article “ B2B E-commerce headed for trillions” March 7, 2002 reported more ambitious projections than Forrester’s [2]. EMarketer found that...worldwide Business-to-Business ( B2B ) e-commerce will total $823.4 billion by the end of 2002, and the growth will continue to nearly $2.4 trillion

  6. Analysis of Jingdong Mall Logistics Distribution Model

    NASA Astrophysics Data System (ADS)

    Shao, Kang; Cheng, Feng

    In recent years, the development of electronic commerce in our country to speed up the pace. The role of logistics has been highlighted, more and more electronic commerce enterprise are beginning to realize the importance of logistics in the success or failure of the enterprise. In this paper, the author take Jingdong Mall for example, performing a SWOT analysis of their current situation of self-built logistics system, find out the problems existing in the current Jingdong Mall logistics distribution and give appropriate recommendations.

  7. Electron Mobility in γ -Al2O3/SrTiO3

    NASA Astrophysics Data System (ADS)

    Christensen, D. V.; Frenkel, Y.; Schütz, P.; Trier, F.; Wissberg, S.; Claessen, R.; Kalisky, B.; Smith, A.; Chen, Y. Z.; Pryds, N.

    2018-05-01

    One of the key issues in engineering oxide interfaces for electronic devices is achieving high electron mobility. SrTiO3 -based interfaces with high electron mobility have gained a lot of interest due to the possibility of combining quantum phenomena with the many functionalities exhibited by SrTiO3 . To date, the highest electron mobility (140 000 cm2/V s at 2 K) is obtained by interfacing perovskite SrTiO3 with spinel γ -Al2O3 . The origin of the high mobility, however, remains poorly understood. Here, we investigate the scattering mechanisms limiting the mobility in γ -Al2O3/SrTiO3 at temperatures between 2 and 300 K and over a wide range of sheet carrier densities. For T >150 K , we find that the mobility is limited by longitudinal optical phonon scattering. For large sheet carrier densities (>8 ×1013 cm-2 ), the screened electron-phonon coupling leads to room-temperature mobilities up to μ ˜12 cm2/V s . For 5 K

  8. Attachment 1 : appendices : electronic toll collection/electronic screening interoperability pilot project, supplement to the final report

    DOT National Transportation Integrated Search

    2005-07-29

    In 1998, ITS America established a Blue Ribbon Panel on electronic commerce to study the convergence of transportation and electronic payment systems. Panel members included senior managers from government, toll agencies, motor carrier industry, and ...

  9. The MiSPOT System: Personalized Publicity and Marketing over Interactive Digital TV

    NASA Astrophysics Data System (ADS)

    López-Nores, Martín; Pazos-Arias, José Juan; Blanco-Fernández, Yolanda; García-Duque, Jorge; Tubío-Pardavila, Ricardo; Rey-López, Marta

    The development of Interactive Digital TV bears a great potential for electronic commerce, which remains heavily underexploited to date. The early initiatives to harness these technologies rely on the advertising techniques traditionally employed by the television industry, which have proven deficiencies related to viewers' comfort, locality and targeting. Furthermore, out of dedicated channels, there are very few attempts to provide interactive commercial functionalities through the TV, for example to sell products or to hire services. This chapter presents an overview of a system called MiSPOT that introduces solutions to these problems in two levels: (i) to advertise items that match the preferences and needs of the viewers, without interfering with their enjoyment of the TV programs; and (ii) to assemble specialized interactive applications that provide them with tailor-made commercial functionalities. These solutions are grounded on techniques from the Semantic Web, and are valid for both domestic TV receivers and mobile ones.

  10. Analysing a Web-Based E-Commerce Learning Community: A Case Study in Brazil.

    ERIC Educational Resources Information Center

    Joia, Luiz Antonio

    2002-01-01

    Demonstrates the use of a Web-based participative virtual learning environment for graduate students in Brazil enrolled in an electronic commerce course in a Masters in Business Administration program. Discusses learning communities; computer-supported collaborative work and collaborative learning; influences on student participation; the role of…

  11. Electronic Commerce: Canadian Community Colleges and Institutes of Technology.

    ERIC Educational Resources Information Center

    Association of Canadian Community Colleges.

    This paper reports on the Canadian college system's collaboration with industry and community services in the development and delivery of non-credit e-commerce courses offered through continuing education departments at community colleges and institutes of technology. The paper argues that, in today's changing economy, the accelerated need for…

  12. Database Administrator

    ERIC Educational Resources Information Center

    Moore, Pam

    2010-01-01

    The Internet and electronic commerce (e-commerce) generate lots of data. Data must be stored, organized, and managed. Database administrators, or DBAs, work with database software to find ways to do this. They identify user needs, set up computer databases, and test systems. They ensure that systems perform as they should and add people to the…

  13. Strategic Planning (Thinking) for the Digital Era.

    ERIC Educational Resources Information Center

    Groff, Warren H.

    This paper examines trends and issues in strategic planning for business and educational institutions on an international level. The paper is organized into sections on analysis, visions, and action plans. Under "analysis" the discussion focuses on commerce (electronic commerce, Asia Pacific, Europe, and the Americas, and stages of the…

  14. 12 CFR 609.940 - Internal systems and controls.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... business plan objectives and policies and procedures requirements regarding E-commerce; and (b) Prevent and... 12 Banks and Banking 7 2012-01-01 2012-01-01 false Internal systems and controls. 609.940 Section 609.940 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards...

  15. 12 CFR 609.940 - Internal systems and controls.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... business plan objectives and policies and procedures requirements regarding E-commerce; and (b) Prevent and... 12 Banks and Banking 7 2013-01-01 2013-01-01 false Internal systems and controls. 609.940 Section 609.940 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards...

  16. 12 CFR 609.940 - Internal systems and controls.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... business plan objectives and policies and procedures requirements regarding E-commerce; and (b) Prevent and... 12 Banks and Banking 6 2011-01-01 2011-01-01 false Internal systems and controls. 609.940 Section 609.940 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards...

  17. 12 CFR 609.940 - Internal systems and controls.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... business plan objectives and policies and procedures requirements regarding E-commerce; and (b) Prevent and... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Internal systems and controls. 609.940 Section 609.940 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards...

  18. 12 CFR 609.940 - Internal systems and controls.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... business plan objectives and policies and procedures requirements regarding E-commerce; and (b) Prevent and... 12 Banks and Banking 7 2014-01-01 2014-01-01 false Internal systems and controls. 609.940 Section 609.940 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards...

  19. E-Commerce and Security Governance in Developing Countries

    NASA Astrophysics Data System (ADS)

    Sanayei, Ali.; Rajabion, Lila

    Security is very often mentioned as one of the preconditions for the faster growth of e-commerce. Without a secure and reliable internet, customer will continue to be reluctant to provide confidential information online, such as credit card number. Moreover, organizations of all types and sizes around the world rely heavily on technologies of electronic commerce (e-commerce) for conducting their day-to-day business transaction. Providing organizations with a secure e-commerce environment is a major issue and challenging one especially in Middle Eastern countries. Without secure e-commerce, it is almost impossible to take advantage of the opportunities offered by e-commerce technologies. E-commerce can create opportunities for small entrepreneurs in Middle Eastern countries. This requires removing infrastructure blockages in telecommunications and logistics alongside the governance of e-commerce with policies on consumer protection, security of transactions, privacy of records and intellectual property. In this paper, we will explore the legal implications of e-commerce security governance by establishing who is responsible for ensuring compliance with this discipline, demonstrating the value to be derived from information security governance, the methodology of applying information security governance, and liability for non-compliance with this discipline. Our main focus will be on analyzing the importance and implication of e-commerce security governance in developing countries.

  20. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Mikheev, Evgeny; Himmetoglu, Burak; Kajdos, Adam P.

    We analyze and compare the temperature dependence of the electron mobility of two- and three-dimensional electron liquids in SrTiO{sub 3}. The contributions of electron-electron scattering must be taken into account to accurately describe the mobility in both cases. For uniformly doped, three-dimensional electron liquids, the room temperature mobility crosses over from longitudinal optical (LO) phonon-scattering-limited to electron-electron-scattering-limited as a function of carrier density. In high-density, two-dimensional electron liquids, LO phonon scattering is completely screened and the mobility is dominated by electron-electron scattering up to room temperature. The possible origins of the observed behavior and the consequences for approaches to improvemore » the mobility are discussed.« less

  1. 15 CFR 30.60 - Confidentiality of Electronic Export Information.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Confidentiality of Electronic Export... § 30.60 Confidentiality of Electronic Export Information. (a) Confidential status. The EEI collected... in any form including but not limited to electronic transmission, paper printout, or certified...

  2. 15 CFR 30.60 - Confidentiality of Electronic Export Information.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Confidentiality of Electronic Export... § 30.60 Confidentiality of Electronic Export Information. (a) Confidential status. The EEI collected... in any form including but not limited to electronic transmission, paper printout, or certified...

  3. 15 CFR 30.60 - Confidentiality of Electronic Export Information.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Confidentiality of Electronic Export... § 30.60 Confidentiality of Electronic Export Information. (a) Confidential status. The EEI collected... in any form including but not limited to electronic transmission, paper printout, or certified...

  4. Electronic Commerce in Tourism in China: B2B or B2C?

    NASA Astrophysics Data System (ADS)

    Li, Hongxiu; Suomi, Reima

    E-commerce has significantly changed the distribution channels of travel products in the world including China. Online channels are growing important in travel service distribution. In China tourism industry has been developed rapidly with the economic development, more and more international travel service providers are trying to expand their Chinese market through the Internet. This paper sheds lights on the e-commerce development models in China for international travel service providers. It explores the current e-tourism in China from the three different participants in the value chain in tourism industry - consumer, travel agent and travel service provider. The paper also identifies the barriers in B2C arena in international outbound travel market, and discusses the possible approaches for international travel service providers to develop their e-commerce in the huge Chinese market. The results in this study reveal that international travel service providers should focus on B2B model to expand their electronic market in China. B2C development in tourism largely depends on the change of Chinese customers' behavior and the change of international tourism regulations. The findings of the study are expected to assist international travel service providers to understand current e-tourism in China and to support their planning for future e-commerce development in China.

  5. 77 FR 18860 - Certain Consumer Electronics, Including Mobile Phones and Tablets; Notice of Receipt of Complaint...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-28

    ... INTERNATIONAL TRADE COMMISSION [DN 2885] Certain Consumer Electronics, Including Mobile Phones and.... International Trade Commission has received a complaint entitled Certain Consumer Electronics, Including Mobile... electronics, including mobile phones and tablets. The complaint names as respondents ASUSTeK Computer, Inc. of...

  6. 48 CFR 1339.270 - Solicitation provisions and contract clauses.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... COMMERCE SPECIAL CATEGORIES OF CONTRACTING ACQUISITION OF INFORMATION TECHNOLOGY Electronic and Information... to 1352.239-71, Electronic and Information Technology, in solicitations for Electronic and... Technology Resources, in all DOC solicitations and contracts for Information Technology services. The clause...

  7. 48 CFR 1339.270 - Solicitation provisions and contract clauses.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... COMMERCE SPECIAL CATEGORIES OF CONTRACTING ACQUISITION OF INFORMATION TECHNOLOGY Electronic and Information... to 1352.239-71, Electronic and Information Technology, in solicitations for Electronic and... Technology Resources, in all DOC solicitations and contracts for Information Technology services. The clause...

  8. 48 CFR 1339.270 - Solicitation provisions and contract clauses.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... COMMERCE SPECIAL CATEGORIES OF CONTRACTING ACQUISITION OF INFORMATION TECHNOLOGY Electronic and Information... to 1352.239-71, Electronic and Information Technology, in solicitations for Electronic and... Technology Resources, in all DOC solicitations and contracts for Information Technology services. The clause...

  9. 78 FR 46563 - Endangered and Threatened Species: Proposed Rule To Designate Critical Habitat for the Northwest...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-01

    ... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 226 [Docket No...), Commerce. ACTION: Proposed rule; request for comments; correction. SUMMARY: In the proposed rule that we... electronic public comments via the Federal e-Rulemaking Portal. Go to www.regulations.gov/#!docketDetail ;D...

  10. 75 FR 43460 - Nondiscrimination on the Basis of Disability; Accessibility of Web Information and Services of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-26

    ... restaurants, movie theaters, schools, day care facilities, recreational facilities, and doctors' offices) and..., electronic commerce, or ``e-commerce,'' often offers consumers a wider selection and lower prices than... establishment as the residence of the proprietor; (2) A restaurant, bar, or other establishment serving food or...

  11. Training as an E-Commerce Enabler.

    ERIC Educational Resources Information Center

    Darch, Helen; Lucas, Trevor

    2002-01-01

    An investigation into lack of skills and awareness as barriers to the use of electronic commerce by 20 small- to medium enterprises within the food industry in Queensland, Australia, found that lack of knowledge and technical skills and structural issues are barriers. A range of training and development strategies are needed. (Contains 20…

  12. ECommerce: Meeting the Needs of Local Business with Cross-Departmental Education.

    ERIC Educational Resources Information Center

    Sagi, John P.

    This document offers a brief introduction to electronic commerce (known as eCommerce) and explains the challenges and frustrations of developing a course around the topic. ECommerce blends elements of computer science (HTML and JavaScript programming, for example) with traditional business functions, such as marketing, salesmanship, finance and…

  13. 48 CFR 14.202-8 - Electronic bids.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 1 2013-10-01 2013-10-01 false Electronic bids. 14.202-8... AND CONTRACT TYPES SEALED BIDDING Solicitation of Bids 14.202-8 Electronic bids. In accordance with subpart 4.5, contracting officers may authorize use of electronic commerce for submission of bids. If...

  14. 48 CFR 14.202-8 - Electronic bids.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 1 2014-10-01 2014-10-01 false Electronic bids. 14.202-8... AND CONTRACT TYPES SEALED BIDDING Solicitation of Bids 14.202-8 Electronic bids. In accordance with subpart 4.5, contracting officers may authorize use of electronic commerce for submission of bids. If...

  15. 48 CFR 14.202-8 - Electronic bids.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 1 2011-10-01 2011-10-01 false Electronic bids. 14.202-8... AND CONTRACT TYPES SEALED BIDDING Solicitation of Bids 14.202-8 Electronic bids. In accordance with subpart 4.5, contracting officers may authorize use of electronic commerce for submission of bids. If...

  16. 48 CFR 14.202-8 - Electronic bids.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 1 2012-10-01 2012-10-01 false Electronic bids. 14.202-8... AND CONTRACT TYPES SEALED BIDDING Solicitation of Bids 14.202-8 Electronic bids. In accordance with subpart 4.5, contracting officers may authorize use of electronic commerce for submission of bids. If...

  17. 48 CFR 14.202-8 - Electronic bids.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Electronic bids. 14.202-8... AND CONTRACT TYPES SEALED BIDDING Solicitation of Bids 14.202-8 Electronic bids. In accordance with subpart 4.5, contracting officers may authorize use of electronic commerce for submission of bids. If...

  18. Personalized Popular Blog Recommender Service for Mobile Applications

    NASA Astrophysics Data System (ADS)

    Tsai, Pei-Yun; Liu, Duen-Ren

    Weblogs have emerged as a new communication and publication medium on the Internet for diffusing the latest useful information. Providing value-added mobile services such as blog articles is increasingly important to attract mobile users to mobile commerce. There are, however, a tremendous number of blog articles, and mobile users generally have difficulty in browsing weblogs. Accordingly, providing mobile users with blog articles that suit their interests is an important issue. Very little research, however, focuses on this issue. In this work, we propose a Customized Content Service on a mobile device (m-CCS) to filter and push blog articles to mobile users. The m-CCS can predict the latest popular blog topics by forecasting the trend of time-sensitive popularity of weblogs. Furthermore, to meet the diversified interest of mobile users, m-CCS further analyzes users’ browsing logs to derive their interests, which are then used to recommend their preferred popular blog topics and articles. The prototype system of m-CCS demonstrates that the system can effectively recommend mobile users desirable blog articles with respect to both popularity and personal interests.

  19. Department of Defense Travel Reengineering Pilot Report to Congress

    DTIC Science & Technology

    1997-06-01

    Electronic Commerce /Electronic Data Interchange (EC/EDI) capabilities to integrate functions. automate edit checks for internal controls, and create user-friendly management tools at all levels of the process.

  20. The role of polarization coulomb field scattering in the electron mobility of AlGaN/AlN/GaN heterostructure field-effect transistors

    NASA Astrophysics Data System (ADS)

    Liu, Yan; Lin, Zhaojun; Zhao, Jingtao; Yang, Ming; Shi, Wenjing; Lv, Yuanjie; Feng, Zhihong

    2016-04-01

    The electron mobility for the prepared AlGaN/AlN/GaN heterostructure field-effect transistor (HFET) with the ratio of the gate length to the drain-to-source distance being less than 1/2 has been studied by comparing the measured electron mobility with the theoretical value. The measured electron mobility is derived from the measured capacitance-voltage (C-V) and current-voltage (I-V) characteristics, and the theoretical mobility is determined by using Matthiessen's law, involving six kinds of important scattering mechanisms. For the prepared device at room temperature, longitudinal optical phonon scattering (LO scattering) was found to have a remarkable effect on the value of the electron mobility, and polarization Coulomb field scattering (PCF scattering ) was found to be important to the changing trend of the electron mobility versus the two-dimensional electron gas (2DEG) density.

  1. 77 FR 12796 - Commerce Business Apps Challenge

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... data set, an application (Web, mobile, PC, etc.) that assists businesses and/or improves the service... use DOC and other federal data and program information to help businesses: Learn about and evaluate opportunities, both here in the U.S. and internationally; Access useful government services, data, and market...

  2. 48 CFR 504.570 - Procedures for using the EPS.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... GENERAL ADMINISTRATIVE MATTERS Electronic Commerce in Contracting 504.570 Procedures for using the EPS. (a... [Identify address block in the solicitation]. (e) The Electronic Posting System Manual provides detailed... that electronic access to a solicitation will result in adequate competition, distribute the...

  3. Issues in Electronic Publishing.

    ERIC Educational Resources Information Center

    Meadow, Charles T.

    1997-01-01

    Discusses issues related to electronic publishing. Topics include writing; reading; production, distribution, and commerce; copyright and ownership of intellectual property; archival storage; technical obsolescence; control of content; equality of access; and cultural changes. (Author/LRW)

  4. 76 FR 24051 - In the Matter of Certain Electronic Devices, Including Mobile Phones, Mobile Tablets, Portable...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-29

    ..., Including Mobile Phones, Mobile Tablets, Portable Music Players, and Computers, and Components Thereof... certain electronic devices, including mobile phones, mobile tablets, portable music players, and computers... mobile phones, mobile tablets, portable music players, and computers, and components thereof that...

  5. Electron mobility in monoclinic β-Ga2O3—Effect of plasmon-phonon coupling, anisotropy, and confinement

    NASA Astrophysics Data System (ADS)

    Ghosh, Krishnendu; Singisetti, Uttam

    2017-11-01

    This work reports an investigation of electron transport in monoclinic \\beta-Ga2O3 based on a combination of density functional perturbation theory based lattice dynamical computations, coupling calculation of lattice modes with collective plasmon oscillations and Boltzmann theory based transport calculations. The strong entanglement of the plasmon with the different longitudinal optical (LO) modes make the role LO-plasmon coupling crucial for transport. The electron density dependence of the electron mobility in \\beta-Ga2O3 is studied in bulk material form and also in the form of two-dimensional electron gas. Under high electron density a bulk mobility of 182 cm2/ V.s is predicted while in 2DEG form the corresponding mobility is about 418 cm2/V.s when remote impurities are present at the interface and improves further as the remote impurity center moves away from the interface. The trend of the electron mobility shows promise for realizing high electron mobility in dopant isolated electron channels. The experimentally observed small anisotropy in mobility is traced through a transient Monte Carlo simulation. It is found that the anisotropy of the IR active phonon modes is responsible for giving rise to the anisotropy in low-field electron mobility.

  6. Integrating New Technology to Commerce Curriculum: How to Overcome Teachers' Resistance?

    ERIC Educational Resources Information Center

    Mayya, Sureshramana

    2007-01-01

    The electronic frontier is not something that education has embraced with open arms. There is a natural tendency to resist new ways of doing things. Our commerce teacher's attitude is responsible for the slow acceptance of modern technology in the educational environment. The paper explores the apprehensions of teacher in the implementation of…

  7. Integrating New Technology to Commerce Curriculum: How to Overcome Teachers' Resistance?

    ERIC Educational Resources Information Center

    Mayya, Sureshramana

    2007-01-01

    The electronic frontier is not something that education has embraced with open arms. There is a natural tendency to resist new ways of doing things. Our commerce teacher's attitude is responsible for the slow acceptance of modern technology in the educational environment. The paper explores the apprehensions of teachers in the implementation of…

  8. 75 FR 4344 - Foreign-Trade Zone 50-Long Beach, California Application for Subzone Allegro Mfg. Inc. (Cosmetic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-27

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket 6-2010] Foreign-Trade Zone 50--Long Beach, California Application for Subzone Allegro Mfg. Inc. (Cosmetic, Organizer and Electronic Bags and Accessories) Commerce, CA An application has been submitted to the Foreign-Trade Zones Board (the Board) by the Port of...

  9. E-Commerce and Education. Graduate Paper Series on Electronic Commerce.

    ERIC Educational Resources Information Center

    di Giantomasso, Tania

    Broad assumptions about the impact of the Internet have created a "cult of hype" where the latest technological advancement is seen as the next best thing, and educators have been swept up in the promise of an educational utopia. The hype tells us that the world is joined by the infrastructure of this new technology and that…

  10. 19 CFR 122.49d - Passenger Name Record (PNR) information.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Aircraft Entry and Entry Documents; Electronic Manifest... request, provide Customs with electronic access to certain Passenger Name Record (PNR) information, as... access to requested PNR information, each air carrier must ensure that its electronic reservation...

  11. Description of a Mobile-based Electronic Informed Consent System Development.

    PubMed

    Hwang, Min-A; Kwak, In Ja

    2015-01-01

    Seoul National University Hospital constructed and implemented a computer-based informed consent system in December 2011. As of 2013, 30% of the informed consents were still filled out manually on paper. Patients and medical staff continuously suggested the implementation of a system for electronic informed consent using portable devices. Therefore, a mobile-based system for electronic informed consent was developed in 2013 to prevent the issues that arise with computer-based systems and paper informed consent. The rate of filling out electronic informed consent increased from 69% to 95% following the implementation of the mobile-based electronic informed consent. This construction of a mobile-based electronic informed consent system would be a good reference point for the development of a mobile-based Electronic Medical Record and for various mobile system environments in medical institutions.

  12. Unified underpinning of human mobility in the real world and cyberspace

    NASA Astrophysics Data System (ADS)

    Zhao, Yi-Ming; Zeng, An; Yan, Xiao-Yong; Wang, Wen-Xu; Lai, Ying-Cheng

    2016-05-01

    Human movements in the real world and in cyberspace affect not only dynamical processes such as epidemic spreading and information diffusion but also social and economical activities such as urban planning and personalized recommendation in online shopping. Despite recent efforts in characterizing and modeling human behaviors in both the real and cyber worlds, the fundamental dynamics underlying human mobility have not been well understood. We develop a minimal, memory-based random walk model in limited space for reproducing, with a single parameter, the key statistical behaviors characterizing human movements in both cases. The model is validated using relatively big data from mobile phone and online commerce, suggesting memory-based random walk dynamics as the unified underpinning for human mobility, regardless of whether it occurs in the real world or in cyberspace.

  13. Smart dental practice: capitalising on smart mobile technology.

    PubMed

    Plangger, K; Bredican, J; Mills, A J; Armstrong, J

    2015-08-14

    To keep pace with consumer adoption of smart mobile devices, such as smartphones and tablets, and the applications ('apps') developed for these devices, dental professionals should consider how this technology could be used to simultaneously improve both patient service experiences and dental practice management. Using U-Commerce as a theoretical lens, this article discusses the potential value of smart mobile technology to the dental practice context, with a particular focus on the unique and customisable capabilities of apps. To take full advantage of this technology, a process is outlined for identifying and designing bespoke dental apps that takes into account the unique advantages of these devices. Dental practices, with increasing financial and competitive pressures, may improve the efficiency and profitability of operations and better manage patients, employees and stakeholders by integrating smart mobile technology.

  14. 77 FR 23204 - VA Acquisition Regulation: Electronic Submission of Payment Requests

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-18

    ... choose to use electronic invoicing have three options to submit payment requests in electronic form: (1... (``Act''), Public Law 97-177, to require Federal agencies to pay their bills on a timely basis, to pay... reflect the increased use of electronic commerce in the Federal Government and in the private sector...

  15. Research on distributed virtual reality system in electronic commerce

    NASA Astrophysics Data System (ADS)

    Xue, Qiang; Wang, Jiening; Sun, Jizhou

    2004-03-01

    In this paper, Distributed Virtual Reality (DVR) technology applied in Electronical Commerce (EC) is discussed. DVR has the capability of providing a new means for human being to recognize, analyze and resolve the large scale, complex problems, which makes it develop quickly in EC fields. The technology of CSCW (Computer Supported Cooperative Work) and middleware is introduced into the development of EC-DVR system to meet the need of a platform which can provide the necessary cooperation and communication services to avoid developing the basic module repeatedly. Finally, the paper gives a platform structure of EC-DVR system.

  16. Mobile Learning: A Kaleidoscope

    ERIC Educational Resources Information Center

    Kruger, Marlena; Bester, Riana

    2014-01-01

    CTI is an accredited private higher education institution (university) with the Higher Education Council (HEC) in South Africa. Its head office is in Fourways, Johannesburg. CTI has 12 campuses nationwide and offers higher certificates and degrees in commerce and information technology. These BCom and BSc degrees were rolled out to all 12…

  17. 78 FR 66330 - Foreign-Trade Zone 196-Fort Worth, Texas, Authorization of Production Activity, Flextronics...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-05

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [B-62-2013] Foreign-Trade Zone 196--Fort Worth, Texas, Authorization of Production Activity, Flextronics International USA, Inc. (Mobile Phone Assembly and Kitting), Fort Worth, Texas On June 14, 2013, Flextronics International USA, Inc. submitted a...

  18. 48 CFR 1352.239-71 - Electronic and information technology.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... technology. 1352.239-71 Section 1352.239-71 Federal Acquisition Regulations System DEPARTMENT OF COMMERCE... Electronic and information technology. As prescribed in 48 CFR 1339.270(a), insert the following provision: Electronic and Information Technology (APR 2010) (a) To be considered eligible for award, offerors must...

  19. Modeling the customer in electronic commerce.

    PubMed

    Helander, M G; Khalid, H M

    2000-12-01

    This paper reviews interface design of web pages for e-commerce. Different tasks in e-commerce are contrasted. A systems model is used to illustrate the information flow between three subsystems in e-commerce: store environment, customer, and web technology. A customer makes several decisions: to enter the store, to navigate, to purchase, to pay, and to keep the merchandize. This artificial environment must be designed so that it can support customer decision-making. To retain customers it must be pleasing and fun, and create a task with natural flow. Customers have different needs, competence and motivation, which affect decision-making. It may therefore be important to customize the design of the e-store environment. Future ergonomics research will have to investigate perceptual aspects, such as presentation of merchandize, and cognitive issues, such as product search and navigation, as well as decision making while considering various economic parameters. Five theories on e-commerce research are presented.

  20. Innovating the Standard Procurement System Through Electronic Commerce Technologies

    DTIC Science & Technology

    1999-12-01

    commerce are emerging almost daily as businesses continue to realize the overwhelming ability of agent applications to reduce costs and improve ...processed using the SPS. The result may reduce cycle time, assist contracting professionals, improve the acquisition process, save money and aid...of innovation processes, and it offers enormous potential for helping organizations achieve major improvements in terms of process cost , time

  1. Electron drift velocity and mobility in graphene

    NASA Astrophysics Data System (ADS)

    Dong, Hai-Ming; Duan, Yi-Feng; Huang, Fei; Liu, Jin-Long

    2018-04-01

    We present a theoretical study of the electric transport properties of graphene-substrate systems. The drift velocity, mobility, and temperature of the electrons are self-consistently determined using the Boltzmann equilibrium equations. It is revealed that the electronic transport exhibits a distinctly nonlinear behavior. A very high mobility is achieved with the increase of the electric fields increase. The electron velocity is not completely saturated with the increase of the electric field. The temperature of the hot electrons depends quasi-linearly on the electric field. In addition, we show that the electron velocity, mobility, and electron temperature are sensitive to the electron density. These findings could be employed for the application of graphene for high-field nano-electronic devices.

  2. 75 FR 15413 - Approval for Processing Authority, Foreign-Trade Zone 196, ATC Logistics & Electronics (Personal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Order No. 1671] Approval for Processing Authority, Foreign-Trade Zone 196, ATC Logistics & Electronics (Personal Navigation Devices), Fort Worth... & Electronics, an operator of Foreign-Trade Zone 196, has requested processing authority within FTZ 196 in Fort...

  3. 75 FR 30372 - Foreign-Trade Zone 196 Temporary/Interim Manufacturing Authority ATC Logistics & Electronics...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-01

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket T-2-2010] Foreign-Trade Zone 196 Temporary/Interim Manufacturing Authority ATC Logistics & Electronics (Cell Phone Kitting and Distribution... filed an application submitted by the ATC Logistics & Electronics, operator of Site 2, FTZ 196...

  4. 75 FR 13484 - Foreign-Trade Zone 22; Temporary/Interim Manufacturing Authority; LG Electronics Mobilecomm USA...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-22

    ... DEPARTMENT OF COMMERCE [Docket T-1-2010] Foreign-Trade Zones Board Foreign-Trade Zone 22; Temporary/Interim Manufacturing Authority; LG Electronics Mobilecomm USA, Inc. (Cell Phones); Notice of.../ interim manufacturing (T/IM) authority, on behalf of LG Electronics Mobilecomm USA, Inc. (LGEMU), to...

  5. Book Soup: Electronic Commerce and the Future of Publishing.

    ERIC Educational Resources Information Center

    Chuck, Lysbeth B.

    1998-01-01

    Examines electronic book selling and publishing, with a detailed look at Amazon.com, National Association of Science Writers, and *bylines* sites. Discusses costs/profits; differences between traditional and electronic book selling; customer feedback; ordering procedures; membership; out-of-print titles; the Direct-to-Web model of electronic…

  6. 19 CFR 122.75a - Electronic manifest requirement for passengers onboard commercial aircraft departing from the...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Electronic manifest requirement for passengers.... CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for...

  7. 15 CFR 711.8 - How to request authorization from BIS to make electronic submissions of declarations or reports.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... to make electronic submissions of declarations or reports. 711.8 Section 711.8 Commerce and Foreign..., REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING OF DECLARATIONS AND REPORTS § 711.8 How to request authorization from BIS to make electronic submissions of declarations or reports...

  8. 15 CFR 711.8 - How to request authorization from BIS to make electronic submissions of declarations or reports.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... to make electronic submissions of declarations or reports. 711.8 Section 711.8 Commerce and Foreign..., REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING OF DECLARATIONS AND REPORTS § 711.8 How to request authorization from BIS to make electronic submissions of declarations or reports...

  9. 15 CFR 711.8 - How to request authorization from BIS to make electronic submissions of declarations or reports.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... to make electronic submissions of declarations or reports. 711.8 Section 711.8 Commerce and Foreign..., REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING OF DECLARATIONS AND REPORTS § 711.8 How to request authorization from BIS to make electronic submissions of declarations or reports...

  10. 15 CFR 711.8 - How to request authorization from BIS to make electronic submissions of declarations or reports.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... to make electronic submissions of declarations or reports. 711.8 Section 711.8 Commerce and Foreign..., REPORTING, AND ADVANCE NOTIFICATION REQUIREMENTS, AND THE ELECTRONIC FILING OF DECLARATIONS AND REPORTS § 711.8 How to request authorization from BIS to make electronic submissions of declarations or reports...

  11. 78 FR 23593 - Certain Mobile Electronic Devices Incorporating Haptics; Termination of Investigation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-19

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-834] Certain Mobile Electronic Devices... this investigation may be viewed on the Commission's electronic docket (EDIS) at http://edis.usitc.gov... mobile electronic devices incorporating haptics that infringe certain claims of six Immersion patents. 77...

  12. Exploring the Use of Electronic Mobile Technologies among Distance Learners in Rural Communities for Safe and Disruptive Learning

    ERIC Educational Resources Information Center

    Ntloedibe-Kuswani, Gomang Seratwa

    2013-01-01

    Several studies indicated the potential of electronic mobile technologies in reaching (safe learning) under-served communities and engaging (disruptive learning) disadvantaged peoples affording them learning experiences. However, the potential benefits of (electronic mobile learning) e-mobile learning have not been well understood from the…

  13. iES - An Intelligent Electronic Sales Platform

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Stanton, V L; Korbe III, W; Gao, J G

    Current e-commerce systems support online shopping based on electronic product catalogs. The major issues associated with catalog-based commerce systems are: difficulty in distinguishing one retailer from another, complex navigation with confusing links, and a lack of personalized service. This paper reports an intelligent solution to address these issues. Our solution will provide a more personalized sales experience through the use of a transaction-based knowledge model that includes both the rules used for reasoning as well as the corresponding actions. Based on this solution, we have developed an intelligent electronic sales platform that is supported by a framework which provides themore » desired personalization as well as extensibility and customization capabilities. This paper reports our design and development of this system and application examples.« less

  14. Enhancing the electron mobility of SrTiO3 with strain

    NASA Astrophysics Data System (ADS)

    Jalan, Bharat; Allen, S. James; Beltz, Glenn E.; Moetakef, Pouya; Stemmer, Susanne

    2011-03-01

    We demonstrate, using high-mobility SrTiO3 thin films grown by molecular beam epitaxy, that stress has a pronounced influence on the electron mobility in this prototype complex oxide. Moderate strains result in more than 300% increases in the electron mobilities with values exceeding 120 000 cm2/V s and no apparent saturation in the mobility gains. The results point to a range of opportunities to tailor high-mobility oxide heterostructure properties and open up ways to explore oxide physics.

  15. 76 FR 41522 - In the Matter of Certain Electronic Devices, Including Mobile Phones, Mobile Tablets, Portable...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-14

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-771] In the Matter of Certain Electronic Devices, Including Mobile Phones, Mobile Tablets, Portable Music Players, and Computers, and Components... certain mobile phones, mobile tablets, portable music players, and computers. 76 FR 24051 (Apr. 29, 2011...

  16. Internet Addiction Risk in the Academic Environment

    ERIC Educational Resources Information Center

    Ellis, William F.; McAleer, Brenda; Szakas, Joseph S.

    2015-01-01

    The Internet's effect on society is growing exponentially. One only has to look at the growth of e-commerce, social media, wireless data access, and mobile devices to see how communication is changing. The need and desire for the Internet, especially in such disciplines as Computer Science or Computer Information Systems, pose a unique risk for…

  17. 76 FR 60802 - Foreign-Trade Zone 77-Memphis, TN; Withdrawal of Request for Temporary/Interim Manufacturing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-30

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket T-4-2011] Foreign-Trade Zone 77--Memphis, TN; Withdrawal of Request for Temporary/Interim Manufacturing Authority; Flextronics Logistics USA, Inc., (Cell Phone/Mobile Handset Kitting). Memphis, TN Notice is hereby given of the withdrawal of the...

  18. Intranet usage and potential in acute care hospitals in the United States: survey-2000.

    PubMed

    Hatcher, M

    2001-12-01

    This paper provides the results of the Survey-2000 measuring Intranet and its potential in health care. The survey measured the levels of Internet and Intranet existence and usage in acute care hospitals. Business-to-business electronic commerce and electronic commerce for customers were measured. Since the Intranet was not studied in survey-1997, no comparisons could be made. Therefore the results were presented and discussed. The Intranet data were compared with the Internet data and statistically significant differences were presented and analyzed. This information will assist hospitals to plan Internet and Intranet technology. This is the third of three articles based upon the results of the Survey-2000. Readers are referred to prior articles by the author, which discusses the survey design and provides a tutorial on technology transfer in acute care hospitals.(1) The first article based upon the survey results discusses technology transfer, system design approaches, user involvement, and decision-making purposes. (2) The second article based upon the survey results discusses distribution of Internet usage and rating of Internet usage applied to specific applications. Homepages, advertising, and electronic commerce are discussed from an Internet perspective.

  19. 75 FR 9867 - University of Pittsburgh, et al

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-04

    ... DEPARTMENT OF COMMERCE International Trade Administration University of Pittsburgh, et al.; Notice of Consolidated Decision on Applications for Duty-Free Entry of Electron Microscopes This is a...: University of Pittsburgh, Pittsburgh, PA 15260. Instrument: Electron Microscope. Manufacturer: JEOL, Ltd...

  20. Understanding Local and Macroscopic Electron Mobilities in the Fullerene Network of Conjugated Polymer-based Solar Cells. Time-Resolved Microwave Conductivity and Theory

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Aguirre, Jordan C.; Arntsen, Christopher D.; Hernandez, Samuel

    2013-09-23

    The efficiency of bulk heterojunction (BHJ) organic photovoltaics is sensitive to the morphology of the fullerene network that transports electrons through the device. This sensitivity makes it difficult to distinguish the contrasting roles of local electron mobility (how easily electrons can transfer between neighboring fullerene molecules) and macroscopic electron mobility (how well-connected is the fullerene network on device length scales) in solar cell performance. In this work, a combination of density functional theory (DFT) calculations, flash-photolysis time-resolved microwave conductivity (TRMC) experiments, and space-charge-limit current (SCLC) mobility estimates are used to examine the roles of local and macroscopic electron mobility inmore » conjugated polymer/fullerene BHJ photovoltaics. The local mobility of different pentaaryl fullerene derivatives (so-called ‘shuttlecock’ molecules) is similar, so that differences in solar cell efficiency and SCLC mobilities result directly from the different propensities of these molecules to self-assemble on macroscopic length scales. These experiments and calculations also demonstrate that the local mobility of phenyl-C60 butyl methyl ester (PCBM) is an order of magnitude higher than that of other fullerene derivatives, explaining why PCBM has been the acceptor of choice for conjugated polymer BHJ devices even though it does not form an optimal macroscopic network. The DFT calculations indicate that PCBM's superior local mobility comes from the near-spherical nature of its molecular orbitals, which allow strong electronic coupling between adjacent molecules. In combination, DFT and TRMC techniques provide a tool for screening new fullerene derivatives for good local mobility when designing new molecules that can improve on the macroscopic electron mobility offered by PCBM.« less

  1. Electron mobility of two-dimensional electron gas in InGaN heterostructures: Effects of alloy disorder and random dipole scatterings

    NASA Astrophysics Data System (ADS)

    Hoshino, Tomoki; Mori, Nobuya

    2018-04-01

    InGaN has a smaller electron effective mass and is expected to be used as a channel material for high-electron-mobility transistors. However, it is an alloy semiconductor with a random distribution of atoms, which introduces additional scattering mechanisms: alloy disorder and random dipole scatterings. In this work, we calculate the electron mobility in InGaN- and GaN-channel high-electron-mobility transistors (HEMTs) while taking into account acoustic deformation potential, polar optical phonon, alloy disorder, and random dipole scatterings. For InGaN-channel HEMTs, we find that not only alloy disorder but also random dipole scattering has a strong impact on the electron mobility and it significantly decreases as the In mole fraction of the channel increases. Our calculation also shows that the channel thickness w dependence of the mobility is rather weak when w > 1 nm for In0.1Ga0.9N-channel HEMTs.

  2. Autonomous Information Fading and Provision to Achieve High Response Time in Distributed Information Systems

    NASA Astrophysics Data System (ADS)

    Lu, Xiaodong; Arfaoui, Helene; Mori, Kinji

    In highly dynamic electronic commerce environment, the need for adaptability and rapid response time to information service systems has become increasingly important. In order to cope with the continuously changing conditions of service provision and utilization, Faded Information Field (FIF) has been proposed. FIF is a distributed information service system architecture, sustained by push/pull mobile agents to bring high-assurance of services through a recursive demand-oriented provision of the most popular information closer to the users to make a tradeoff between the cost of information service allocation and access. In this paper, based on the analysis of the relationship that exists among the users distribution, information provision and access time, we propose the technology for FIF design to resolve the competing requirements of users and providers to improve users' access time. In addition, to achieve dynamic load balancing with changing users preference, the autonomous information reallocation technology is proposed. We proved the effectiveness of the proposed technology through the simulation and comparison with the conventional system.

  3. 19 CFR 122.49c - Master crew member list and master non-crew member list requirement for commercial aircraft...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Aircraft Entry and Entry Documents; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members Onboard... sections, must electronically transmit to Customs and Border Protection (CBP), by means of an electronic...

  4. 76 FR 18247 - Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... Certain Electronic Devices, Including Mobile Phones, Mobile Tablets, Portable Music Players, and Computers... importation of certain electronic devices, including mobile phones, mobile tablets, portable music players...

  5. Effectiveness of mobile electronic devices in weight loss among overweight and obese populations: a systematic review and meta-analysis.

    PubMed

    Khokhar, Bushra; Jones, Jessica; Ronksley, Paul E; Armstrong, Marni J; Caird, Jeff; Rabi, Doreen

    2014-01-01

    Mobile electronic devices, such as mobile phones and PDAs, have emerged as potentially useful tools in the facilitation and maintenance of weight loss. While RCTs have demonstrated a positive impact of mobile interventions, the extent to which mobile electronic devices are more effective than usual care methods is still being debated. Electronic databases were systematically searched for RCTs evaluating the effectiveness of mobile electronic device interventions among overweight and obese adults. Weighted mean difference for change in body weight was the primary outcome. The search strategy yielded 559 citations and of the 108 potentially relevant studies, six met the criteria. A total of 632 participants were included in the six studies reporting a mean change in body weight. Using a random-effects model, the WMD for the effect of using mobile electronic devices on reduction in body weight was -1.09 kg (95% CI -2.12, -0.05). When stratified by the type of mobile electronic device used, it suggests that interventions using mobile phones were effective at achieving weight loss, WMD = -1.78 kg (95% CI -2.92, -0.63). This systematic review and meta-analysis suggests that mobile electronic devices have the potential to facilitate weight loss in overweight and obese populations, but further work is needed to understand if these interventions have sustained benefit and how we can make these mHealth tools most effective on a large scale. As the field of healthcare increasingly utilizes novel mobile technologies, the focus must not be on any one specific device but on the best possible use of these tools to measure and understand behavior. As mobile electronic devices continue to increase in popularity and the associated technology continues to advance, the potential for the use of mobile devices in global healthcare is enormous. More RCTs with larger sample sizes need to be conducted to look at the cost-effectiveness, technical and financial feasibility of adapting such mHealth interventions in a real clinical setting.

  6. 48 CFR 4.502 - Policy.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 1 2013-10-01 2013-10-01 false Policy. 4.502 Section 4.502 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION GENERAL ADMINISTRATIVE MATTERS Electronic Commerce in Contracting 4.502 Policy. (a) The Federal Government shall use electronic...

  7. Modeling of anomalous electron mobility in Hall thrusters

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Koo, Justin W.; Boyd, Iain D.

    Accurate modeling of the anomalous electron mobility is absolutely critical for successful simulation of Hall thrusters. In this work, existing computational models for the anomalous electron mobility are used to simulate the UM/AFRL P5 Hall thruster (a 5 kW laboratory model) in a two-dimensional axisymmetric hybrid particle-in-cell Monte Carlo collision code. Comparison to experimental results indicates that, while these computational models can be tuned to reproduce the correct thrust or discharge current, it is very difficult to match all integrated performance parameters (thrust, power, discharge current, etc.) simultaneously. Furthermore, multiple configurations of these computational models can produce reasonable integrated performancemore » parameters. A semiempirical electron mobility profile is constructed from a combination of internal experimental data and modeling assumptions. This semiempirical electron mobility profile is used in the code and results in more accurate simulation of both the integrated performance parameters and the mean potential profile of the thruster. Results indicate that the anomalous electron mobility, while absolutely necessary in the near-field region, provides a substantially smaller contribution to the total electron mobility in the high Hall current region near the thruster exit plane.« less

  8. 78 FR 34132 - Certain Portable Electronic Communications Devices, Including Mobile Phones and Components...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-06

    ... INTERNATIONAL TRADE COMMISSION [Docket No 2958] Certain Portable Electronic Communications Devices, Including Mobile Phones and Components Thereof; Correction to Notice of Receipt of Complaint; Solicitation... of complaint entitled Certain Portable Electronic Communications Devices, Including Mobile Phones and...

  9. 77 FR 15390 - Certain Mobile Electronic Devices Incorporating Haptics; Receipt of Amended Complaint...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-15

    ... INTERNATIONAL TRADE COMMISSION [DN 2875] Certain Mobile Electronic Devices Incorporating Haptics.... International Trade Commission. ACTION: Notice. SUMMARY: Notice is hereby given that the U.S. International Trade Commission has received an amended complaint entitled Certain Mobile Electronic Devices...

  10. Electron mobility on the surface of liquid Helium: influence of surface level atoms and depopulation of lowest subbands

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Grigoriev, P. D., E-mail: grigorev@itp.ac.ru; Dyugaev, A. M.; Lebedeva, E. V.

    2008-02-15

    The temperature dependence of electron mobility is examined. We calculate the contribution to the electron scattering rate from the surface level atoms (SLAs), proposed in [10]. This contribution is substantial at low temperatures T < 0.5, when the He vapor concentration is exponentially small. We also study the effect of depopulation of the lowest energy subband, which leads to an increase in the electron mobility at high temperature. The results explain certain long-standing discrepancies between the existing theory and experiment on electron mobility on the surface of liquid helium.

  11. A thermodynamic model to predict electron mobility in superfluid helium.

    PubMed

    Aitken, Frédéric; Volino, Ferdinand; Mendoza-Luna, Luis Guillermo; Haeften, Klaus von; Eloranta, Jussi

    2017-06-21

    Electron mobility in superfluid helium is modeled between 0.1 and 2.2 K by a van der Waals-type thermodynamic equation of state, which relates the free volume of solvated electrons to temperature, density, and phase dependent internal pressure. The model is first calibrated against known electron mobility reference data along the saturated vapor pressure line and then validated to reproduce the existing mobility literature values as a function of pressure and temperature with at least 10% accuracy. Four different electron mobility regimes are identified: (1) Landau critical velocity limit (T ≈ 0), (2) mobility limited by thermal phonons (T < 0.6 K), (3) thermal phonon and discrete roton scattering ("roton gas") limited mobility (0.6 K < T < 1.2 K), and (4) the viscous liquid ("roton continuum") limit (T > 1.2 K) where the ion solvation structure directly determines the mobility. In the latter regime, the Stokes equation can be used to estimate the hydrodynamic radius of the solvated electron based on its mobility and fluid viscosity. To account for the non-continuum behavior appearing below 1.2 K, the temperature and density dependent Millikan-Cunningham factor is introduced. The hydrodynamic electron bubble radii predicted by the present model appear generally larger than the solvation cavity interface barycenter values obtained from density functional theory (DFT) calculations. Based on the classical Stokes law, this difference can arise from the variation of viscosity and flow characteristics around the electron. The calculated DFT liquid density profiles show distinct oscillations at the vacuum/liquid interface, which increase the interface rigidity.

  12. How Standard Are the Standard Barriers to E-commerce Adoption? Empirical Evidence from Australia, Sweden and the USA

    NASA Astrophysics Data System (ADS)

    Macflregor, Robert; Vrazalic, Lejla; Carlsson, Sten; Pratt, Jean; Harris, Matthew

    Despite their size, small to medium enterprises (SMEs) are increasingly turning to global markets. This development has been enabled by the advent of electronic commerce technology. There are numerous definitions of e-comrnerce in the literature, however, fundamentally e-commerce can best be described as "the buying and selling of information, products, and services via computer networks" (Kalakota & Whinston, 997, p.3). Ecommerce has the potential to become a source of competitive advantage to the SME sector because it is a cost effective way of accessing customers and being 'wired to the global marketplace'.

  13. Spring 2006. Industry Study. Manufacturing Industry

    DTIC Science & Technology

    2006-01-01

    ANALYSIS OF TRENDS Today the U.S. is the global leader in manufacturing innovation and technology . Continued advancements in both computing power and...than ninety percent of all annual U.S. patents as reported by the Department of Commerce. Through innovation and the application of new technology ...mobilization, innovation and technology , the manufacturing transformation, environmental balance, and international travel impressions

  14. Remodelling Marketing Communications in an Internet Environment.

    ERIC Educational Resources Information Center

    Rowley, Jennifer

    2001-01-01

    Argues that the Internet demands a significant review of approaches to marketing communications, or promotion, as both the strategic and tactical levels. Highlights include electronic business and electronic commerce; comparing organizational and consumer markets; service development; objectives of marketing communications; and questions for…

  15. Critical Infrastructure References: Documented Literature Search

    DTIC Science & Technology

    2012-10-01

    the literature search document can be a resource for DRDC and external partners. Future plans: At present, the electronic copies of the reference...Personal Information Protection and Electronic Documents Act (S.C. 2000, c. 5) Title: Personal Information Protection and Electronic Documents Act (S.C...2011 Overview: • "An Act to support and promote electronic commerce by protecting personal information that is collected, used or disclosed in

  16. 15 CFR 995.5 - Abbreviations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... Survey SENCSystem Electronic Navigational Chart SOLASSafety of Life at Sea VADValue Added Distributor ...

  17. 15 CFR 995.5 - Abbreviations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... Survey SENCSystem Electronic Navigational Chart SOLASSafety of Life at Sea VADValue Added Distributor ...

  18. 15 CFR 995.5 - Abbreviations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... Survey SENCSystem Electronic Navigational Chart SOLASSafety of Life at Sea VADValue Added Distributor ...

  19. 15 CFR 995.5 - Abbreviations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... Survey SENCSystem Electronic Navigational Chart SOLASSafety of Life at Sea VADValue Added Distributor ...

  20. 15 CFR 995.5 - Abbreviations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... Survey SENCSystem Electronic Navigational Chart SOLASSafety of Life at Sea VADValue Added Distributor ...

  1. Lead Halide Perovskites as Charge Generation Layers for Electron Mobility Measurement in Organic Semiconductors.

    PubMed

    Love, John A; Feuerstein, Markus; Wolff, Christian M; Facchetti, Antonio; Neher, Dieter

    2017-12-06

    Hybrid lead halide perovskites are introduced as charge generation layers (CGLs) for the accurate determination of electron mobilities in thin organic semiconductors. Such hybrid perovskites have become a widely studied photovoltaic material in their own right, for their high efficiencies, ease of processing from solution, strong absorption, and efficient photogeneration of charge. Time-of-flight (ToF) measurements on bilayer samples consisting of the perovskite CGL and an organic semiconductor layer of different thickness are shown to be determined by the carrier motion through the organic material, consistent with the much higher charge carrier mobility in the perovskite. Together with the efficient photon-to-electron conversion in the perovskite, this high mobility imbalance enables electron-only mobility measurement on relatively thin application-relevant organic films, which would not be possible with traditional ToF measurements. This architecture enables electron-selective mobility measurements in single components as well as bulk-heterojunction films as demonstrated in the prototypical polymer/fullerene blends. To further demonstrate the potential of this approach, electron mobilities were measured as a function of electric field and temperature in an only 127 nm thick layer of a prototypical electron-transporting perylene diimide-based polymer, and found to be consistent with an exponential trap distribution of ca. 60 meV. Our study furthermore highlights the importance of high mobility charge transporting layers when designing perovskite solar cells.

  2. High Electron Mobility Transistor Structures on Sapphire Substrates Using CMOS Compatible Processing Techniques

    NASA Technical Reports Server (NTRS)

    Mueller, Carl; Alterovitz, Samuel; Croke, Edward; Ponchak, George

    2004-01-01

    System-on-a-chip (SOC) processes are under intense development for high-speed, high frequency transceiver circuitry. As frequencies, data rates, and circuit complexity increases, the need for substrates that enable high-speed analog operation, low-power digital circuitry, and excellent isolation between devices becomes increasingly critical. SiGe/Si modulation doped field effect transistors (MODFETs) with high carrier mobilities are currently under development to meet the active RF device needs. However, as the substrate normally used is Si, the low-to-modest substrate resistivity causes large losses in the passive elements required for a complete high frequency circuit. These losses are projected to become increasingly troublesome as device frequencies progress to the Ku-band (12 - 18 GHz) and beyond. Sapphire is an excellent substrate for high frequency SOC designs because it supports excellent both active and passive RF device performance, as well as low-power digital operations. We are developing high electron mobility SiGe/Si transistor structures on r-plane sapphire, using either in-situ grown n-MODFET structures or ion-implanted high electron mobility transistor (HEMT) structures. Advantages of the MODFET structures include high electron mobilities at all temperatures (relative to ion-implanted HEMT structures), with mobility continuously improving to cryogenic temperatures. We have measured electron mobilities over 1,200 and 13,000 sq cm/V-sec at room temperature and 0.25 K, respectively in MODFET structures. The electron carrier densities were 1.6 and 1.33 x 10(exp 12)/sq cm at room and liquid helium temperature, respectively, denoting excellent carrier confinement. Using this technique, we have observed electron mobilities as high as 900 sq cm/V-sec at room temperature at a carrier density of 1.3 x 10(exp 12)/sq cm. The temperature dependence of mobility for both the MODFET and HEMT structures provides insights into the mechanisms that allow for enhanced electron mobility as well as the processes that limit mobility, and will be presented.

  3. Continuous use of social commerce: Its conceptual relation with E-WOM, commitment and trust

    NASA Astrophysics Data System (ADS)

    Sami, Atyaf; Hashim, Kamarul Faizal; Yusof, Shafiz Affendi Mohd

    2016-08-01

    The popularity of social media has changed the way of doing business and introduces a new type of commerce known later as social commerce (s-commerce). Within s-commerce, consumer's loyalty and returning to use have reduced mainly because it is a high competitive environment, which is simply presented by products that proposed and announced rapidly to the market. S-commerce has a magic power called Electronic Word-of-Mouth (E-WOM). E-WOM enables consumers to make a collaboration decision as well as it enable business to reach up their consumers and their network in low cost and short time. Yet, to date, there is limited research that conducted the effect of E-WOM on consumer's continuous use behavior. Therefore, this study is an attempt to propose a value conceptual model that explains the relationship between e-WOM and continuous use behavior. This study serves not only to clarify the relationship between e-WOM and continuous use, but also to explain the mediating role of trust and commitment in this relationship; a theory known as Commitment-Trust theory is adopted. Additionally, drawing upon flow theory, this study examines flow experience determinants as predictors for promoting e-WOM among s-commerce consumers.

  4. Electron mobility limited by optical phonons in wurtzite InGaN/GaN core-shell nanowires

    NASA Astrophysics Data System (ADS)

    Liu, W. H.; Qu, Y.; Ban, S. L.

    2017-09-01

    Based on the force-balance and energy-balance equations, the optical phonon-limited electron mobility in InxGa1-xN/GaN core-shell nanowires (CSNWs) is discussed. It is found that the electrons tend to distribute in the core of the CSNWs due to the strong quantum confinement. Thus, the scattering from first kind of the quasi-confined optical (CO) phonons is more important than that from the interface (IF) and propagating (PR) optical phonons. Ternary mixed crystal and size effects on the electron mobility are also investigated. The results show that the PR phonons exist while the IF phonons disappear when the indium composition x < 0.047, and vice versa. Accordingly, the total electron mobility μ first increases and then decreases with indium composition x, and reaches a peak value of approximately 3700 cm2/(V.s) when x = 0.047. The results also show that the mobility μ increases as increasing the core radius of CSNWs due to the weakened interaction between the electrons and CO phonons. The total electron mobility limited by the optical phonons exhibits an obvious enhancement as decreasing temperature or increasing line electron density. Our theoretical results are expected to be helpful to develop electronic devices based on CSNWs.

  5. 12 CFR 609.945 - Records retention.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 12 Banks and Banking 6 2011-01-01 2011-01-01 false Records retention. 609.945 Section 609.945 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.945 Records retention. Records stored electronically must be accurate, accessible...

  6. 12 CFR 609.945 - Records retention.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Records retention. 609.945 Section 609.945 Banks and Banking FARM CREDIT ADMINISTRATION FARM CREDIT SYSTEM ELECTRONIC COMMERCE Standards for Boards and Management § 609.945 Records retention. Records stored electronically must be accurate, accessible...

  7. DOD Electronic Commerce (EC)/Electronic Data Interchange (EDI) in contracting report

    NASA Astrophysics Data System (ADS)

    1993-12-01

    Use of Electronic Commerce (EC)/Electronic Data Interchange (EDI) to support Department of Defense (DoD) procurement processes has been under consideration for some time. A 1988 Deputy Secretary of Defense memo calls for maximum use of EDI, based on 10 years of DoD EDI investigation and experiments. In 1990, Defense Management Review Decision 941 stated, 'The strategic goal of DoD's current efforts is to provide the department with the capability to initiate, conduct, and maintain its external business related transactions and internal logistics, contracting, and financial activities without requiring the use of hard copy media.' The EC in Contracting PAT membership reflected a broad cross section of Military Services and Defense Agencies working on a full-time basis for 60 days. The diversity of the EC in Contracting PAT ensured that the needs and concerns of all DoD components were addressed during the creation of the report. The resultant plan, therefore, represents a comprehensive approach for implementing EC throughout the DoD.

  8. 77 FR 49458 - Certain Mobile Electronic Devices Incorporating Haptics; Amendment of the Complaint and Notice of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-16

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-834] Certain Mobile Electronic Devices.... 1337 in the importation, sale for importation, and sale within the United States after importation of certain mobile electronic devices incorporating haptics, by reason of the infringement of claims of six...

  9. 77 FR 27078 - Certain Electronic Devices, Including Mobile Phones and Tablet Computers, and Components Thereof...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-08

    ... Phones and Tablet Computers, and Components Thereof; Notice of Receipt of Complaint; Solicitation of... entitled Certain Electronic Devices, Including Mobile Phones and Tablet Computers, and Components Thereof... the United States after importation of certain electronic devices, including mobile phones and tablet...

  10. 76 FR 31983 - In the Matter of Certain Electronic Devices, Including Mobile Phones, Portable Music Players, and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-701] In the Matter of Certain Electronic Devices, Including Mobile Phones, Portable Music Players, and Computers; Notice of Commission... States after importation of certain electronic devices, including mobile phones, portable music players...

  11. Origin of the different transport properties of electron and hole polarons in an ambipolar polyselenophene-based conjugated polymer

    NASA Astrophysics Data System (ADS)

    Chen, Zhuoying; Bird, Matthew; Lemaur, Vincent; Radtke, Guillaume; Cornil, Jérôme; Heeney, Martin; McCulloch, Iain; Sirringhaus, Henning

    2011-09-01

    Understanding the mechanisms limiting ambipolar transport in conjugated polymer field-effect transistors (FETs) is of both fundamental and practical interest. Here, we present a systematic study comparing hole and electron charge transport in an ambipolar conjugated polymer, semicrystalline poly(3,3''-di-n-decylterselenophene) (PSSS). Starting from a detailed analysis of the device characteristics and temperature/charge-density dependence of the mobility, we interpret the difference between hole and electron transport through both the Vissenberg-Matters and the mobility-edge model. To obtain microscopic insight into the quantum mechanical wave function of the charges at a molecular level, we combine charge modulation spectroscopy (CMS) measuring the charge-induced absorption signatures from positive and negative polarons in these ambipolar FETs with corresponding density functional theory (DFT) calculations. We observe a significantly higher switch-on voltage for electrons than for holes due to deep electron trap states, but also a higher activation energy of the mobility for mobile electrons. The CMS spectra reveal that the electrons that remain mobile and contribute to the FET current have a wave function that is more localized onto a single polymer chain than that of holes, which is extended over several polymer chains. We interpret this as evidence that the transport properties of the mobile electrons in PSSS are still affected by the presence of deep electron traps. The more localized electron state could be due to the mobile electrons interacting with shallow trap states in the vicinity of a chemical, potentially water-related, impurity that might precede the capture of the electron into a deeply trapped state.

  12. Rational In Silico Design of an Organic Semiconductor with Improved Electron Mobility.

    PubMed

    Friederich, Pascal; Gómez, Verónica; Sprau, Christian; Meded, Velimir; Strunk, Timo; Jenne, Michael; Magri, Andrea; Symalla, Franz; Colsmann, Alexander; Ruben, Mario; Wenzel, Wolfgang

    2017-11-01

    Organic semiconductors find a wide range of applications, such as in organic light emitting diodes, organic solar cells, and organic field effect transistors. One of their most striking disadvantages in comparison to crystalline inorganic semiconductors is their low charge-carrier mobility, which manifests itself in major device constraints such as limited photoactive layer thicknesses. Trial-and-error attempts to increase charge-carrier mobility are impeded by the complex interplay of the molecular and electronic structure of the material with its morphology. Here, the viability of a multiscale simulation approach to rationally design materials with improved electron mobility is demonstrated. Starting from one of the most widely used electron conducting materials (Alq 3 ), novel organic semiconductors with tailored electronic properties are designed for which an improvement of the electron mobility by three orders of magnitude is predicted and experimentally confirmed. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  13. The effect of charged quantum dots on the mobility of a two-dimensional electron gas: How important is the Coulomb scattering?

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Kurzmann, A., E-mail: annika.kurzmann@uni-due.de; Beckel, A.; Lorke, A.

    2015-02-07

    We have investigated the influence of a layer of charged self-assembled quantum dots (QDs) on the mobility of a nearby two-dimensional electron gas (2DEG). Time-resolved transconductance spectroscopy was used to separate the two contributions of the change in mobility, which are: (i) The electrons in the QDs act as Coulomb scatterers for the electrons in the 2DEG. (ii) The screening ability and, hence, the mobility of the 2DEG decreases when the charge carrier density is reduced by the charged QDs, i.e., the mobility itself depends on the charge carrier concentration. Surprisingly, we find a negligible influence of the Coulomb scatteringmore » on the mobility for a 2DEG, separated by a 30 nm tunneling barrier to the layer of QDs. This means that the mobility change is completely caused by depletion, i.e., reduction of the charge carrier density in the 2DEG, which indirectly influences the mobility.« less

  14. Getting real about virtual commerce.

    PubMed

    Evans, P; Wurster, T S

    1999-01-01

    In its first generation, electronic commerce has been a landgrab. Space on the Internet was claimed by whoever got there first with enough resources to create a credible business. It took speed, a willingness to experiment, and a lot of cybersavvy. Companies that had performed brilliantly in traditional settings seemed hopelessly flat-footed on the Web. And despite their astronomical valuations, the new e-commerce stars have appeared to be just as confused. Many have yet to make a profit, and no one has any idea when they will. Now, the authors contend, we are entering the second generation of e-commerce, and it will be shaped more by strategy than by experimentation. The key players--branded-goods suppliers, physical retailers, electronic retailers, and pure navigators--will shift their attention from claiming territory to defending or capturing it. They will be forced to focus on strategies to achieve competitive advantage. Success will go to the businesses that get closest to consumers, the ones that help customers navigate their way through the Web. Indeed, the authors argue, navigation is the battlefield on which competitive advantage will be won or lost. There are three dimensions of navigation: Reach is about access and connection. Affiliation is about whose interests the business represents. And richness is the depth of the information that a business gives to or collects about its customers. Navigators and e-retailers have the natural advantage in reach and affiliation, while traditional product suppliers and retailers have the edge in richness. The authors offer practical advice to each player on competing in the second generation of e-commerce.

  15. Principled Libraries: Finding Stability in Changing Times.

    ERIC Educational Resources Information Center

    Crawford, Walt

    2000-01-01

    Discusses the transition that libraries are currently experiencing between physical resources and electronic access. Topics include technology as tools rather than solutions; media and technology; desktop publishing; electronic books; Web commerce; instant books, or books printed on demand; new types of media; and serving the users. (LRW)

  16. 78 FR 32689 - Certain Portable Electronic Communications Devices, Including Mobile Phones and Components...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-31

    ..., Including Mobile Phones and Components Thereof Notice of Receipt of Complaint; Solicitation of Comments... Certain Portable Electronic Communications Devices, Including Mobile Phones and Components Thereof, DN... mobile phones and components thereof. The complaint names as respondents HTC Corporation of China and HTC...

  17. Tuning the Electronic Properties, Effective Mass and Carrier Mobility of MoS2 Monolayer by Strain Engineering: First-Principle Calculations

    NASA Astrophysics Data System (ADS)

    Phuc, Huynh V.; Hieu, Nguyen N.; Hoi, Bui D.; Hieu, Nguyen V.; Thu, Tran V.; Hung, Nguyen M.; Ilyasov, Victor V.; Poklonski, Nikolai A.; Nguyen, Chuong V.

    2018-01-01

    In this paper, we studied the electronic properties, effective masses, and carrier mobility of monolayer MoS_2 using density functional theory calculations. The carrier mobility was considered by means of ab initio calculations using the Boltzmann transport equation coupled with deformation potential theory. The effects of mechanical biaxial strain on the electronic properties, effective mass, and carrier mobility of monolayer MoS_2 were also investigated. It is demonstrated that the electronic properties, such as band structure and density of state, of monolayer MoS_2 are very sensitive to biaxial strain, leading to a direct-indirect transition in semiconductor monolayer MoS_2. Moreover, we found that the carrier mobility and effective mass can be enhanced significantly by biaxial strain and by lowering temperature. The electron mobility increases over 12 times with a biaxial strain of 10%, while the carrier mobility gradually decreases with increasing temperature. These results are very useful for the future nanotechnology, and they make monolayer MoS_2 a promising candidate for application in nanoelectronic and optoelectronic devices.

  18. 75 FR 32984 - Policy on the Retention of Supporting Documents and the Use of Electronic Mobile Communication...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-10

    ...-0168] Policy on the Retention of Supporting Documents and the Use of Electronic Mobile Communication/Tracking Technology in Assessing Motor Carriers' and Commercial Motor Vehicle Drivers' Compliance With the... changes regarding the retention of supporting documents and the use of electronic mobile communication...

  19. Freight transportation : short sea shipping option shows importance of systematic approach to public investment decisions : report to the Senate Committee on Commerce, Science, and Transportation and the House Committee on Transportation Infrastructure

    DOT National Transportation Integrated Search

    2005-07-01

    A dramatic increase in freight moving on the nation's highways and rail lines, coupled with growing congestion and infrastructure limitations, has prompted DOT to explore new mobility-enhancing options like short sea shipping (SSS)--transporting frei...

  20. Mobile Agents for Battlespace Information Exchange

    DTIC Science & Technology

    2013-05-01

    autonomously gather information and coordinate activities (e.g. meetings, e - commerce transactions) on behalf of their owners. Sometime in the...operations where consumer -level infrastructure is not available. The report provides an overview of MA characteristics and follows with a description of...detection for security, telecommunications and the military. With the advent of broadband communication (fixed and wireless) a typical consumer is now

  1. Portalen Handelsplats Wermland — Practical E-commerce for Värmland's Businesses and Municipalities

    NASA Astrophysics Data System (ADS)

    Peterson, Ulrika Obstfelder; Borg, Ulf

    Portalen Handelsplats Wermland (Portal Meetingpoint Wermland) offers a range of services designed by the Wermland Chamber of Commerce to permit the cost-effective exchange of electronic messages, including invoicing, ordering, certification and procurement. The portal meets the needs and expectations faced by businesses, both large and small, in the area of e-commerce. The portal also provides a way for businesses to share the cost of applications and equipment. As a result, they enjoy greater flexibility with their partners and more efficient internal procedures. Most importantly, the portal represents a local, impartial effort to strengthen Varmland's private sector and open up avenues that are beyond the financial means of individual businesses.

  2. 77 FR 3386 - Export and Reexport License Requirements for Certain Microwave and Millimeter Wave Electronic...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-24

    ... electronic components. The two components are packaged high electron mobility transistors and packaged..., 2012, FR Doc. 2012- 135). The two components are packaged high electron mobility transistors (HEMT) and...

  3. Intrinsic phonon-limited charge carrier mobilities in thermoelectric SnSe

    NASA Astrophysics Data System (ADS)

    Ma, Jinlong; Chen, Yani; Li, Wu

    2018-05-01

    Within the past few years, tin selenide (SnSe) has attracted intense interest due to its remarkable thermoelectric potential for both n - and p -type crystals. In this work, the intrinsic phonon-limited electron/hole mobilities of SnSe are investigated using a Boltzmann transport equation based on first-principles calculated electron-phonon interactions. We find that the electrons have much larger mobilities than the holes. At room temperature, the mobilities of electrons along the a , b , and c axes are 325, 801, and 623 cm2/V s, respectively, whereas those of holes are 100, 299, and 291 cm2/V s, respectively. The anisotropy of mobilities is consistent with the reciprocal effective mass at band edges. The mode-specific analysis shows that the highest longitudinal optical phonons, rather than previously assumed acoustic phonons, dominate the scattering processes and consequently the mobilities in SnSe. The room-temperature largest mean free paths of electrons and holes in SnSe are about 21 and 13 nm, respectively.

  4. Extremely high electron mobility in a phonon-glass semimetal

    NASA Astrophysics Data System (ADS)

    Ishiwata, S.; Shiomi, Y.; Lee, J. S.; Bahramy, M. S.; Suzuki, T.; Uchida, M.; Arita, R.; Taguchi, Y.; Tokura, Y.

    2013-06-01

    The electron mobility is one of the key parameters that characterize the charge-carrier transport properties of materials, as exemplified by the quantum Hall effect as well as high-efficiency thermoelectric and solar energy conversions. For thermoelectric applications, introduction of chemical disorder is an important strategy for reducing the phonon-mediated thermal conduction, but is usually accompanied by mobility degradation. Here, we show a multilayered semimetal β-CuAgSe overcoming such a trade-off between disorder and mobility. The polycrystalline ingot shows a giant positive magnetoresistance and Shubnikov de Haas oscillations, indicative of a high-mobility small electron pocket derived from the Ag s-electron band. Ni doping, which introduces chemical and lattice disorder, further enhances the electron mobility up to 90,000 cm2 V-1 s-1 at 10 K, leading not only to a larger magnetoresistance but also a better thermoelectric figure of merit. This Ag-based layered semimetal with a glassy lattice is a new type of promising thermoelectric material suitable for chemical engineering.

  5. Microwave Integrated Circuit Amplifier Designs Submitted to Qorvo for Fabrication with 0.09-micron High Electron Mobility Transistors (HEMTs) using 2-mil Gallium Nitride (GaN) on Silicon Carbide (SiC)

    DTIC Science & Technology

    2016-03-01

    Fabrication with 0.09-µm High-Electron-Mobility Transistors (HEMTs) Using 2-mil Gallium Nitride (GaN) on Silicon Carbide (SiC) by John E Penn...for Fabrication with 0.09-µm High-Electron-Mobility Transistors (HEMTs) using 2-mil Gallium Nitride (GaN) on Silicon Carbide by John E Penn...µm High-Electron-Mobility Transistors (HEMTs) using 2-mil Gallium Nitride (GaN) on Silicon Carbide 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c

  6. Boost the electron mobility of solution-grown organic single crystals via reducing the amount of polar solvent residues

    DOE PAGES

    Xue, Guobiao; Xin, Huolin L.; Wu, Jiake; ...

    2015-10-29

    Enhancing electron transport to match with the development in hole transport is critical for organic electronics in the future. As electron motion is susceptible to extrinsic factors, seeking these factors and avoiding their negative effects have become the central challenge. Here, the existence of polar solvent residues in solution-grown single-crystals of 6,13-bis(triisopropylsilylethynyl)-5,7,12,14-tetraazapentacene is identified as a factor detrimental to electron motion. Field-effect transistors of the crystals exhibit electron mobility boosted by about 60% after the residues are removed. The average electron mobility reaches up to 8.0 ± 2.2 cm 2 V –1 s –1 with a highest value of 13.3more » cm 2 V –1 s –1; these results are significantly higher than those obtained previously for the same molecule (1.0–5.0 cm 2 V –1 s –1). Furthermore, the achieved mobility is also higher than the maximum reported electron mobility for organic materials (11 cm 2 V –1 s –1). As a result, this work should greatly accelerate the advancement of organic electron-transporting materials.« less

  7. Enhanced mobility in vertically scaled N-polar high-electron-mobility transistors using GaN/InGaN composite channels

    NASA Astrophysics Data System (ADS)

    Li, Haoran; Wienecke, Steven; Romanczyk, Brian; Ahmadi, Elaheh; Guidry, Matthew; Zheng, Xun; Keller, Stacia; Mishra, Umesh K.

    2018-02-01

    A GaN/InGaN composite channel design for vertically scaled N-polar high-electron-mobility transistor (HEMT) structures is proposed and demonstrated by metal-organic chemical vapor deposition. In a conventional N-polar HEMT structure, as the channel thickness (tch) decreases, the sheet charge density (ns) decreases, the electric field in the channel increases, and the centroid of the two-dimensional electron gas (2DEG) moves towards the back-barrier/channel interface, resulting in stronger scattering and lower electron mobility (μ). In this study, a thin InGaN layer was introduced in-between the channel and the AlGaN cap to increase the 2DEG density and reduce the electric field in the channel and therefore increase the electron mobility. The dependence of μ on the InGaN thickness (tInGaN) and the indium composition (xIn) was investigated for different channel thicknesses. With optimized tInGaN and xIn, significant improvements in electron mobility were observed. For a 6 nm channel HEMT structure, the electron mobility increased from 606 to 1141 cm2/(V.s) when the 6 nm thick pure GaN channel was replaced by the 4 nm GaN/2 nm In0.1Ga0.9N composite channel.

  8. Theoretical prediction of high carrier mobility in single-walled black phosphorus nanotubes

    NASA Astrophysics Data System (ADS)

    Li, Q. F.; Wang, H. F.; Yang, C. H.; Li, Q. Q.; Rao, W. F.

    2018-05-01

    One-dimensional semiconductors are promising materials for high-performance nanoscale devices. Using the first-principles calculations combined with deformation potential approximation, we study the electronic structures and carrier transport properties of black phosphorus nanotubes (BPNTs). It is found that both armchair and zigzag BPNTs with diameter 13.5-18.5 Å are direct bandgap semiconductors. At a similar diameter, the carrier mobility of zigzag BPNT is one order of magnitude larger than that of armchair BPNT. For armchair BPNTs, the electron mobility is about 90.70-155.33 cm2 V-1 s-1 at room temperature, which is about three times of its hole counterpart. For zigzag BPNTs, the maximum mobility can reach 2.87 ×103 cm2 V-1 s-1. Furthermore, the electronic properties can be effectively tuned by the strain. For zigzag (0,13) nanotube, there is a direct-to-indirect band gap transition at a tensile strain of about 6%. Moreover, the electron mobility is boosted sharply by one order of magnitude by applying the compressive or tensile strain. The electron mobility increases to 14.05 ×103 cm2 V-1 s-1 at a tensile strain of 9%. Our calculations highlight the tunable electronic properties and superior carrier mobility of BPNTs that are promising for interesting applications in future nano-electronic devices.

  9. 19 CFR 122.47 - Stores list.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... COMMERCE REGULATIONS Aircraft Entry and Entry Documents; Electronic Manifest Requirements for Passengers..., cigars, cigarettes and narcotic drugs, whether domestic or foreign; (ii) Bonded merchandise arriving as...

  10. 75 FR 17691 - Foreign-Trade Zone 196 - Fort Worth, Texas, Application for Manufacturing Authority, ATC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-07

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket 19-2010] Foreign-Trade Zone 196 - Fort Worth, Texas, Application for Manufacturing Authority, ATC Logistics & Electronics (Cell Phone Kitting... Board (the Board) by ATC Logistics & Electronics (ATCLE), operator of Site 2, FTZ 196, Fort Worth, Texas...

  11. 75 FR 17691 - Foreign-Trade Zone 196 - Fort Worth, Texas, Application for Temporary/Interim Manufacturing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-07

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Docket T-2-2010] Foreign-Trade Zone 196 - Fort Worth, Texas, Application for Temporary/Interim Manufacturing Authority, ATC Logistics & Electronics... Executive Secretary of the Foreign-Trade Zones Board (the Board) by ATC Logistics & Electronics, operator of...

  12. Law and Technology: Can They Keep Abreast?

    ERIC Educational Resources Information Center

    Weiss, Peter N.

    1991-01-01

    Electronic data interchange (EDI) permits two parties to enter into a contract without the use of paper and human signatures, which are historically associated with commerce in goods and services. As federal legislation governing contractual information changes to accommodate electronic formats, provisions must be crafted in a technology-neutral…

  13. 16 CFR 680.26 - Delivery of opt-out notices.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 680.26 Commercial Practices FEDERAL TRADE COMMISSION THE FAIR CREDIT REPORTING ACT AFFILIATE MARKETING..., the notice may be provided in compliance with either the electronic disclosure provisions in this part or the provisions in section 101 of the Electronic Signatures in Global and National Commerce Act, 15...

  14. The Skills Implications of Electronic Retailing. IES Final Report.

    ERIC Educational Resources Information Center

    Tackey, Nii Djan; Hillage, Jim; Jagger, Nick; Bates, Peter

    The skills and education/training implications of the development of electronic commerce in the United Kingdom's retail industry and its associated supply chain were examined. The major data collection activities were as follows: a literature review; consultation with leading academics and advisers; an e-mail-based call for information from…

  15. Health care and privacy law in electronic commerce.

    PubMed

    Wright, B

    1994-01-01

    As electronic data interchange (EDI) continues to gain acceptance and use, questions regarding protection of the confidentiality of private healthcare information have arisen. This article explains how a computer-based information system equipped with appropriate safeguards can be far better at ensuring privacy than a paper-based system.

  16. 48 CFR 504.500 - Scope of subpart.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Scope of subpart. 504.500 Section 504.500 Federal Acquisition Regulations System GENERAL SERVICES ADMINISTRATION GENERAL ADMINISTRATIVE MATTERS Electronic Commerce in Contracting 504.500 Scope of subpart. This subpart provides policy and procedure for use of GSA's Electronic...

  17. 77 FR 5473 - Pacific Halibut Fisheries; Catch Sharing Plan

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-03

    ... NOAA-NMFS-2011-0292, by any of the following methods: Electronic Submissions: Submit all electronic... defined as follows: (1) WDFW Marine Catch Area 4B, which is all waters west of the Sekiu River mouth, as... DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration 50 CFR Part 300 [Docket No...

  18. 19 CFR 351.304 - Establishing business proprietary treatment of information.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... information. 351.304 Section 351.304 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE...) Electronic databases. In accordance with § 351.303(c)(3), an electronic database need not contain brackets... in the database. The public version of the database must be publicly summarized and ranged in...

  19. 19 CFR 351.304 - Establishing business proprietary treatment of information.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... information. 351.304 Section 351.304 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE...) Electronic databases. In accordance with § 351.303(c)(3), an electronic database need not contain brackets... in the database. The public version of the database must be publicly summarized and ranged in...

  20. 19 CFR 351.304 - Establishing business proprietary treatment of information.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... information. 351.304 Section 351.304 Customs Duties INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE...) Electronic databases. In accordance with § 351.303(c)(3), an electronic database need not contain brackets... in the database. The public version of the database must be publicly summarized and ranged in...

  1. 77 FR 33422 - The Regents of the University of California, et al.; Notice of Consolidated Decision on...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-06

    ... DEPARTMENT OF COMMERCE International Trade Administration The Regents of the University of...: Washington University in St. Louis, Saint Louis, MO 63130. Instrument: Electron Microscope. Manufacturer: FEI.... Applicant: The Regents of the University of California, Berkeley, CA 94720. Instrument: Electron Microscope...

  2. 15 CFR 30.2 - General requirements for filing Electronic Export Information (EEI).

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... definitions, specifications, and requirements of the regulations in this part for all export shipments, except... 15 Commerce and Foreign Trade 1 2014-01-01 2014-01-01 false General requirements for filing... Requirements § 30.2 General requirements for filing Electronic Export Information (EEI). (a) Filing...

  3. Charge carrier mobility and electronic properties of Al(Op)3: impact of excimer formation

    PubMed Central

    Friederich, Pascal; Schäfer, Bernhard; Fattori, Valeria; Sun, Xiangnan; Strunk, Timo; Meded, Velimir; Hueso, Luis E; Wenzel, Wolfgang; Ruben, Mario

    2015-01-01

    Summary We have studied the electronic properties and the charge carrier mobility of the organic semiconductor tris(1-oxo-1H-phenalen-9-olate)aluminium(III) (Al(Op)3) both experimentally and theoretically. We experimentally estimated the HOMO and LUMO energy levels to be −5.93 and −3.26 eV, respectively, which were close to the corresponding calculated values. Al(Op)3 was successfully evaporated onto quartz substrates and was clearly identified in the absorption spectra of both the solution and the thin film. A structured steady state fluorescence emission was detected in solution, whereas a broad, red-shifted emission was observed in the thin film. This indicates the formation of excimers in the solid state, which is crucial for the transport properties. The incorporation of Al(Op)3 into organic thin film transistors (TFTs) was performed in order to measure the charge carrier mobility. The experimental setup detected no electron mobility, while a hole mobility between 0.6 × 10−6 and 2.1 × 10−6 cm2·V−1·s−1 was measured. Theoretical simulations, on the other hand, predicted an electron mobility of 9.5 × 10−6 cm2·V−1·s−1 and a hole mobility of 1.4 × 10−4 cm2·V−1·s−1. The theoretical simulation for the hole mobility predicted an approximately one order of magnitude higher hole mobility than was observed in the experiment, which is considered to be in good agreement. The result for the electron mobility was, on the other hand, unexpected, as both the calculated electron mobility and chemical common sense (based on the capability of extended aromatic structures to efficiently accept and delocalize additional electrons) suggest more robust electron charge transport properties. This discrepancy is explained by the excimer formation, whose inclusion in the multiscale simulation workflow is expected to bring the theoretical simulation and experiment into agreement. PMID:26171287

  4. WWREX: A case study in the development of Internet E-Commerce in the energy industry

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Yeich, K.; Horner, D.; Dunn, A.

    Even more so than the World Wide Web, the utility industry is undergoing a massive deregulation that is turning it into a Wild West environment that has fostered fierce competition, new technology and new services in the energy marketplace. It has become increasingly complex for consumers, suppliers and utilities to buy and sell energy at the best prices. With the help of the Internet, Per-Se Technologies and North American Power have developed the World Wide Retail Energy eXchange (WWREX): a real-time, Web-based electronic commerce application that matches suppliers of electricity and natural gas with potential customers online. This service ismore » the first online application to facilitate the buying and selling of energy via the Internet. Designed to take advantage of the deregulated utilities marketplace, REX benefits multiple market players. With REX, business energy consumers can buy energy at the best price, from multiple suppliers and with significant time and cost reductions. Suppliers can instantly access new customer bases and close efficient, bulk transactions without the traditional sales and marketing costs associated with selling to a diverse set of consumers. The challenges and solutions of this project illustrate the technologies and techniques in creating a viable E-Commerce application. The resulting system provides effective electronic commerce and solves a critical business need at a relatively low cost.« less

  5. Tuning charge transport in pentacene thin-film transistors using the strain-induced electron-phonon coupling modification

    NASA Astrophysics Data System (ADS)

    Lin, Yow-Jon; Chang, Hsing-Cheng; Liu, Day-Shan

    2015-03-01

    Tuning charge transport in the bottom-contact pentacene-based organic thin-film transistors (OTFTs) using a MoO x capping layer that serves to the electron-phonon coupling modification is reported. For OTFTs with a MoO x front gate, the enhanced field-effect carrier mobility is investigated. The time domain data confirm the electron-trapping model. To understand the origin of a mobility enhancement, an analysis of the temperature-dependent Hall-effect characteristics is presented. Similarly, the Hall-effect carrier mobility was dramatically increased by capping a MoO x layer on the pentacene front surface. However, the carrier concentration is not affected. The Hall-effect carrier mobility exhibits strong temperature dependence, indicating the dominance of tunneling (hopping) at low (high) temperatures. A mobility enhancement is considered to come from the electron-phonon coupling modification that results from the contribution of long-lifetime electron trapping.

  6. Organic High Electron Mobility Transistors Realized by 2D Electron Gas.

    PubMed

    Zhang, Panlong; Wang, Haibo; Yan, Donghang

    2017-09-01

    A key breakthrough in inorganic modern electronics is the energy-band engineering that plays important role to improve device performance or develop novel functional devices. A typical application is high electron mobility transistors (HEMTs), which utilizes 2D electron gas (2DEG) as transport channel and exhibits very high electron mobility over traditional field-effect transistors (FETs). Recently, organic electronics have made very rapid progress and the band transport model is demonstrated to be more suitable for explaining carrier behavior in high-mobility crystalline organic materials. Therefore, there emerges a chance for applying energy-band engineering in organic semiconductors to tailor their optoelectronic properties. Here, the idea of energy-band engineering is introduced and a novel device configuration is constructed, i.e., using quantum well structures as active layers in organic FETs, to realize organic 2DEG. Under the control of gate voltage, electron carriers are accumulated and confined at quantized energy levels, and show efficient 2D transport. The electron mobility is up to 10 cm 2 V -1 s -1 , and the operation mechanisms of organic HEMTs are also argued. Our results demonstrate the validity of tailoring optoelectronic properties of organic semiconductors by energy-band engineering, offering a promising way for the step forward of organic electronics. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  7. 48 CFR 1323.705 - Electronic products environmental assessment tool.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Contracting for Environmentally Preferable and Energy-Efficient...

  8. 48 CFR 1323.705 - Electronic products environmental assessment tool.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Contracting for Environmentally Preferable and Energy-Efficient...

  9. 48 CFR 1323.705 - Electronic products environmental assessment tool.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Contracting for Environmentally Preferable and Energy-Efficient...

  10. 48 CFR 1323.705 - Electronic products environmental assessment tool.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Contracting for Environmentally Preferable and Energy-Efficient...

  11. 48 CFR 1323.705 - Electronic products environmental assessment tool.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... COMMERCE SOCIOECONOMIC PROGRAMS ENVIRONMENT, ENERGY AND WATER EFFICIENCY, RENEWABLE ENERGY TECHNOLOGIES, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE Contracting for Environmentally Preferable and Energy-Efficient...

  12. 76 FR 23923 - Hazardous Materials: Restricting the Use of Cellular Phones by Drivers of Commercial Motor...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-29

    ... associated with the use of cellular (mobile) phones and electronic devices while operating a commercial motor... mobile communication device that falls under or uses any commercial mobile radio service, as defined in... restricting the use of mobile telephones and other distracting electronic devices by railroad operating...

  13. DoD Electronic Data Interchange (EDI) Convention: ASC X12 Transaction Set 856 Ship Notice/Manifest (Version 003030)

    DTIC Science & Technology

    1993-01-01

    from the Department of Defense Ecutive Agent for Elctronic Com••rce/Electronic Data interrrhange/Ped~on of Logisti Unc.iaassfed/fen-une Systers...Convention: Electronic Commerce ; ANSI X12, X12; 62 electronic standards, electronic business standards; computer-to-computer exchange of data...Ship Notice Manifest Information From Invoicng Party to DFAS Using ASC X12 856A 10.1) Reserved 10. E Reserved CV QUAMY Tr7 4 10O.F Reserved__

  14. Thermal Investigation of Three-Dimensional GaN-on-SiC High Electron Mobility Transistors

    DTIC Science & Technology

    2017-07-01

    AFRL-RY-WP-TR-2017-0143 THERMAL INVESTIGATION OF THREE- DIMENSIONAL GaN-on-SiC HIGH ELECTRON MOBILITY TRANSISTORS Qing Hao The University of Arizona...To) July 2017 Final 08 April 2015 – 10 April 2017 4. TITLE AND SUBTITLE THERMAL INVESTIGATION OF THREE-DIMENSIONAL GaN-on-SiC HIGH ELECTRON MOBILITY...used in many DoD applications, including integrated radio frequency (RF) amplifiers and power electronics . However, inherent inefficiencies in

  15. Metals bioleaching from electronic waste by Chromobacterium violaceum and Pseudomonads sp.

    PubMed

    Pradhan, Jatindra Kumar; Kumar, Sudhir

    2012-11-01

    These days, electronic waste needs to be taken into consideration due to its materials content, but due to the heterogeneity of the metals present, reprocessing of electronic waste is quite limited. The bioleaching of metals from electronic waste was investigated by using cyanogenic bacterial strains (Chromobacterium violaceum, Pseudomonas aeruginosa and Pseudomonas fluorescens). A two-step bioleaching process was followed under cyanide-forming conditions for maximum metals mobilization. Both single and mixed cultures of cyanogenic bacteria were able to mobilize metals from electronic waste with different efficiencies. In all the flasks in which high metal mobilizations were observed, the consequent biomass productions were also high. Pseudomonas aeruginosa was applied in the bioleaching process for the first time and this achieved its bioleaching ability of mobilization of metals from electronic waste. Chromobacterium violaceum as a single culture and a mixture of C. violaceum and P. aeruginosa exhibited maximum metal mobilization. Chromobacterium violaceum was capable of leaching more than 79, 69, 46, 9 and 7% of Cu, Au, Zn, Fe and Ag, respectively at an electronic waste concentration of 1% w/v. Moreover, the mixture of C. violaceum and P. aeruginosa exhibited metals leaching of more than 83, 73, 49, 13 and 8% of total Cu, Au, Zn, Fe, and Ag, respectively. Precious metals were mobilized through bioleaching which might be considered as an industrial application for recycling of electronic waste in the near future.

  16. Electron-polar optical phonon scattering suppression and mobility enhancement in wurtzite heterostructures

    NASA Astrophysics Data System (ADS)

    Pokatilov, E. P.; Nika, D. L.; Zincenco, N. D.; Balandin, A. A.

    2007-12-01

    We have shown theoretically that the electron mobility in wurtzite AlN/GaN/AlN heterostructures can be enhanced by compensating the built-in electric field with the externally applied perpendicular electric field and by introducing a shallow InxGa1-xN channel in the center of GaN potential well. It was found that two- to fivefold increase of the room temperature electron mobility can be achieved. The tuning of the electron mobility with the external electric field or InxGa1-xN channel can be useful for the design of GaN-based field-effect transistors and optoelectronic devices.

  17. Electronic transport in smectic liquid crystals

    NASA Astrophysics Data System (ADS)

    Shiyanovskaya, I.; Singer, K. D.; Twieg, R. J.; Sukhomlinova, L.; Gettwert, V.

    2002-04-01

    Time-of-flight measurements of transient photoconductivity have revealed bipolar electronic transport in phenylnaphthalene and biphenyl liquid crystals (LC), which exhibit several smectic mesophases. In the phenylnaphthalene LC, the hole mobility is significantly higher than the electron mobility and exhibits different temperature and phase behavior. Electron mobility in the range ~10-5 cm2/V s is temperature activated and remains continuous at the phase transitions. However, hole mobility is nearly temperature independent within the smectic phases, but is very sensitive to smectic order, 10-3 cm2/V s in the smectic-B (Sm-B) and 10-4 cm2/V s in the smectic-A (Sm-A) mesophases. The different behavior for holes and electron transport is due to differing transport mechanisms. The electron mobility is apparently controlled by rate-limiting multiple shallow trapping by impurities, but hole mobility is not. To explain the lack of temperature dependence for hole mobility within the smectic phases we consider two possible polaron transport mechanisms. The first mechanism is based on the hopping of Holstein small polarons in the nonadiabatic limit. The polaron binding energy and transfer integral values, obtained from the model fit, turned out to be sensitive to the molecular order in smectic mesophases. A second possible scenario for temperature-independent hole mobility involves the competion between two different polaron mechanisms involving so-called nearly small molecular polarons and small lattice polarons. Although the extracted transfer integrals and binding energies are reasonable and consistent with the model assumptions, the limited temperature range of the various phases makes it difficult to distinguish between any of the models. In the biphenyl LCs both electron and hole mobilities exhibit temperature activated behavior in the range of 10-5 cm2/V s without sensitivity to the molecular order. The dominating transport mechanism is considered as multiple trapping in the impurity sites. Temperature-activated mobility was treated within the disorder formalism, and activation energy and width of density of states have been calculated.

  18. Mobile-PKI Service Model for Ubiquitous Environment

    NASA Astrophysics Data System (ADS)

    Jeun, Inkyung; Chun, Kilsoo

    One of the most important things in PKI(Public Key Infrastructure) is the private key management issue. The private key must be deal with safely for secure PKI service. Even though PKI service is usually used for identification and authentication of user in e-commerce, PKI service has many inconvenient factors. Especially, the fact that storage media of private key for PKI service is limited to PC hard disk drive or smart card users must always carry, gives an inconvenience to user and is not suitable in ubiquitous network. This paper suggests the digital signature service using a mobile phone(m-PKI service) which is suitable in future network. A mobile phone is the most widely used for personal communication means and has a characteristic of high movability. We can use the PKI service anytime and anywhere using m-PKI.

  19. Bipolar molecular composites: a new class of high-electron-mobility organic solids

    NASA Astrophysics Data System (ADS)

    Lin, Liang-Bih; Jenekhe, Samson A.; Borsenberger, Paul M.

    1997-10-01

    We describe high electron mobility in organic solids in the form of bipolar molecular composites of N,N'-bis(1,2-dimethylpropyl)-1,4,5,8-naphthalenetetracarboxylic diimide (NTDI) and tri-p-tolylaniine (TTA). The electron mobility in the NTDI/TTA composites is ~2 x 10 cm2/Vs, which is a factor of 4 to 6 higher than in pure NTDI and isone of the highest values reported for disordered organic solids. The field and temperature dependencies of the charge mobility can be described using the disorder formalism due to Bassler and co-workers, which provides an estimation of the energy width σ of the hopping site manifold. Analysis of the data gave σ=0.081 and 0.060 eV for the electron and hole mobilities in a NTDI/TTA composite of 0.5510.45 molar ratio. The energetic disorder for electron transport in the bipolar composites is substantially lower than for pure NTDI, which is 0.093 eV. The results suggest that the observed enhancement arises from a substantial reduction of energetic disorder in the electron transport manifold of the bipolar composites. The reduction of energetic disorder may be due to intermolecular charge transfer between NTDI and TTA. Such a charge transfer could stabilize the electron transport manifold by better charge delocalization, and consequently, less energetic disorder. Another possible reason for the observed enhanced electron mobility is the reduction of NTDI dimers that can act as carrier traps by the presence of TTA molecules in the bipolar composites. These results also suggest that bipolar composites represent a promising new class of high electron mobility organic solids.

  20. A Guide for Industrial Mobilization

    DTIC Science & Technology

    1989-03-01

    packages; and cient, increased production controls may be needed. These actions include: i. Releasing machine tool trigger or- ders and increasing buys...710). the Department of Defense to maintain facili- 4. The National Defense Act authorizes: ties, machine tools , production equipment, and skilled...Defense Industrial Reserve Act pro- Room 3876, U.S. Departm nt of Commerce vides for the reserve of machine tools and other Washington, D.C. 20230 or

  1. 17 CFR 23.202 - Daily trading records.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ..., instant messaging, chat rooms, electronic mail, mobile device, or other digital or electronic media. Such...; (ii) Moneys borrowed and moneys loaned; (iii) The daily calculation of the value of each outstanding... rooms, electronic mail, mobile device, or other digital or electronic media; (2) Reliable timing data...

  2. 17 CFR 23.202 - Daily trading records.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., instant messaging, chat rooms, electronic mail, mobile device, or other digital or electronic media. Such...; (ii) Moneys borrowed and moneys loaned; (iii) The daily calculation of the value of each outstanding... rooms, electronic mail, mobile device, or other digital or electronic media; (2) Reliable timing data...

  3. 19 CFR 122.79 - Shipments to U.S. possessions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members Onboard Commercial...

  4. 19 CFR 122.74 - Incomplete (pro forma) manifest.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members Onboard Commercial...

  5. Analysis of Proton Radiation Effects on Gallium Nitride High Electron Mobility Transistors

    DTIC Science & Technology

    2017-03-01

    energy levels on a GaN-on-silicon high electron mobility transistor was created. Based on physical results of 2.0-MeV protons irradiation to fluence...and the physical device at 2.0-MeV proton irradiation , predictions were made for 5.0, 10.0, 20.0 and 40.0-MeV proton irradiation . The model generally...nitride, high electron mobility transistor, electronics, 2 MeV proton irradiation , radiation effects 15. NUMBER OF PAGES 87 16. PRICE CODE 17. SECURITY

  6. Introduction of Electronic Book Ordering with EDIFACT in a Special Library: A Case Study.

    ERIC Educational Resources Information Center

    Stadler, Peter; Thomas, Martin; Mernke, Ernst

    1999-01-01

    Describes book ordering procedures at a German pharmaceutical library using the Electronic Data Interchange for Administration, Commerce and Transport (EDIFACT) guidelines developed by the United Nations. Topics include advantages for libraries and for the book trade, changes needed in software, productivity gains, and EDIFACT versus the Internet.…

  7. An Electronic Service Quality Reference Model for Designing E-Commerce Websites Which Maximizes Customer Satisfaction

    ERIC Educational Resources Information Center

    Shaheen, Amer N.

    2011-01-01

    This research investigated Electronic Service Quality (E-SQ) features that contribute to customer satisfaction in an online environment. The aim was to develop an approach which improves E-CRM processes and enhances online customer satisfaction. The research design adopted mixed methods involving qualitative and quantitative methods to…

  8. Keeping Current: The Digital Divide: Can School Library Media Specialists Help Build the Bridge?

    ERIC Educational Resources Information Center

    Barron, Daniel D.

    2000-01-01

    Discusses the growth of electronic commerce as well as electronic education and suggests ways that schools and public libraries can help overcome inequity of access. Highlights include access to the Internet and computers; educational levels; Blacks; race and ethnic origin; rural access; use of the Internet; and income. (LRW)

  9. A Hierarchy Fuzzy MCDM Method for Studying Electronic Marketing Strategies in the Information Service Industry.

    ERIC Educational Resources Information Center

    Tang, Michael T.; Tzeng, Gwo-Hshiung

    In this paper, the impacts of Electronic Commerce (EC) on the international marketing strategies of information service industries are studied. In seeking to blend humanistic concerns in this research with technological development by addressing challenges for deterministic attitudes, the paper examines critical environmental factors relevant to…

  10. A Pan-European Survey Leading to the Development of WITS.

    ERIC Educational Resources Information Center

    Mullins, Roisin; Duan, Yanqing; Hamblin, David

    2001-01-01

    Describes a study of the training needs of small- and medium-sized enterprises in relation to the Internet, electronic commerce, and electronic data interchange in the United Kingdom, Poland, Slovak Republic, Germany, and Portugal. Discusses the development of a Web-based intelligent training system (WITS) as a result of the study. (Author/LRW)

  11. Advantages of Application of Electronic Commerce in Procurement for the Armed Forces of Brazil and South Korea

    DTIC Science & Technology

    2001-12-01

    Northern Europe.”, Ecommerce Times, [http://www.ecommercetimes.com/perl/story/3546.html], June 2001. Mc Gregor, Don, “Encryption”, [http...sans.org/infosecFAQ/ ecommerce /fraud.htm], September 2001. Schneider, Gary P. and James T. Perry, “Electronic Commerce”, Course Technology, 2001

  12. Performance Plan: Progress Report 2nd Quarter Fiscal Year 2000.

    ERIC Educational Resources Information Center

    Department of Education, Washington, DC. Student Financial Assistance.

    This document is progress report on the U.S. Department of Education's Student Financial Assistance (SFA) programs. Regarding its customer satisfaction objective, SFA notes that it looks to private sector leaders in e-commerce and promotes electronic services; offers electronic filing of the Free Application For Student Aid (FAFSA); offers most…

  13. 76 FR 22672 - Grant of Authority for Subzone Status, Allegro Mfg. Inc. (Distribution of Cosmetic, Organizer and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    ... DEPARTMENT OF COMMERCE Foreign-Trade Zones Board [Order No. 1754] Grant of Authority for Subzone Status, Allegro Mfg. Inc. (Distribution of Cosmetic, Organizer and Electronic Bags and Accessories... grants authority for subzone status for activity related to cosmetic, organizer and electronic bags and...

  14. Theoretical Characterization of Charge Transport in Chromia (α-Cr2O3)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Iordanova, Nellie I.; Dupuis, Michel; Rosso, Kevin M.

    2005-08-15

    Transport of conduction electrons and holes through the lattice of ?-Cr2O3 (chromia) is modeled as a valence alternation of chromium cations using ab initio electronic structure calculations and electron transfer theory. In the context of the small polaron model, a cluster approach was used to compute quantities controlling the mobility of localized electrons and holes, i.e. the reorganization energy and the electronic coupling matrix element that enter Marcus? theory. The calculation of the electronic coupling followed the Generalized Mulliken-Hush approach and the quasi-diabatic method using the complete active space self-consistent field (CASSCF) method. Our findings indicate that hole mobility ismore » more than three orders of magnitude larger than electron mobility in both (001) and [001] lattice directions. The difference arises mainly from the larger internal reorganization energy calculated for electron transport relative to hole transport processes while electronic couplings have similar magnitudes. The much larger hole mobility vs electron mobility in ?-Cr2O3 is in contrast to similar hole and electron mobility in hematite ?-Fe2O3 previously calculated. Our calculations also indicate that the electronic coupling for all charge transfer processes of interest is smaller than for the corresponding processes in hematite. This variation is attributed to weaker interaction between the metal 3d states and the O(2p) states in chromia than in hematite, leading to smaller overlap between the charge transfer donor and acceptor wavefunctions and smaller super-exchange coupling in chromia. Nevertheless, the weaker coupling in chromia is still sufficiently large to suggest that charge transport processes in chromia are adiabatic in nature. The electronic coupling is found to depend on both the superexchange interaction through the bridging oxygen atoms and the d-shell electron spin coupling within the Cr-Cr donor-acceptor pair, while the reorganization energy is essentially independent of the electron spin coupling.« less

  15. Theoretical characterization of charge transport in chromia (α-Cr2O3)

    NASA Astrophysics Data System (ADS)

    Iordanova, N.; Dupuis, M.; Rosso, K. M.

    2005-08-01

    Transport of conduction electrons and holes through the lattice of α-Cr2O3 (chromia) is modeled as a valence alternation of chromium cations using ab initio electronic structure calculations and electron-transfer theory. In the context of the small polaron model, a cluster approach was used to compute quantities controlling the mobility of localized electrons and holes, i.e., the reorganization energy and the electronic coupling matrix element that enter Marcus' theory. The calculation of the electronic coupling followed the generalized Mulliken-Hush approach using the complete active space self-consistent-field (CASSCF) method and the quasidiabatic method. Our findings indicate that hole mobility is more than three orders of magnitude larger than electron mobility in both (001) and [001] lattice directions. The difference arises mainly from the larger internal reorganization energy calculated for electron-transport relative to hole-transport processes while electronic couplings have similar magnitudes. The much larger hole mobility versus electron mobility in α-Cr2O3 is in contrast to similar hole and electron mobilities in hematite α-Fe2O3 previously calculated. Our calculations also indicate that the electronic coupling for all charge-transfer processes of interest is smaller than for the corresponding processes in hematite. This variation is attributed to the weaker interaction between the metal 3d states and the O(2p ) states in chromia than in hematite, leading to a smaller overlap between the charge-transfer donor and acceptor wave functions and smaller superexchange coupling in chromia. Nevertheless, the weaker coupling in chromia is still sufficiently large to suggest that charge-transport processes in chromia are adiabatic in nature. The electronic coupling is found to depend on both the superexchange interaction through the bridging oxygen atoms and the d-shell electron-spin coupling within the Cr-Cr donor-acceptor pair, while the reorganization energy is essentially independent of the electron-spin coupling.

  16. Enhancing mHealth Technology in the PCMH Environment to Activate Chronic Care Patients

    DTIC Science & Technology

    2017-09-01

    AVAILABILITY STATEMENT Approved for Public Release; Distribution Unlimited 13. SUPPLEMENTARY NOTES - 14. ABSTRACT - The potential of mobile health (mHealth...biometric data, electronic coaching, electronic-based health education, secure e-mail communication between visits, and electronic collection of lifestyle...influence patient activation and self-care activities. 15. SUBJECT TERMS MHCE, Mobile Health Care Environment mHealth, mobile health MHS, Military Health

  17. Electron Mobility and Trapping in Ferrihydrite Nanoparticles

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Soltis, Jennifer A.; Schwartzberg, Adam M.; Zarzycki, Piotr

    Iron is the most abundant transition metal in the Earth’s crust, and naturally occurring iron oxide minerals play a commanding role in environmental redox reactions. Although iron oxide redox reactions are well-studied, their precise mechanisms are not fully understood. Recent work has shown that these involve electron transfer pathways within the solid, suggesting that overall reaction rates could be dependent upon electron mobility. Initial ultrafast spectroscopy studies of iron oxide nanoparticles sensitized by fluorescein derivatives supported a model for electron mobility based on polaronic hopping of electron charge carriers between iron sites, but the constitutive relationships between hopping mobilities andmore » interfacial charge transfer processes has remained obscured. In this paper, we developed a coarse-grained lattice Monte Carlo model to simulate the collective mobilities and lifetimes of these photoinjected electrons with respect to recombination with adsorbed dye molecules for essential nanophase ferrihydrite and tested predictions made by the simulations using pump–probe spectroscopy. We acquired optical transient absorption spectra as a function of the particle size and under a variety of solution conditions and used cryogenic transmission electron microscopy to determine the aggregation state of the nanoparticles. We observed biphasic electron recombination kinetics over time scales that spanned from picoseconds to microseconds, the slower regime of which was fit with a stretched exponential decay function. The recombination rates were weakly affected by the nanoparticle size and aggregation state, suspension pH, and injection of multiple electrons per nanoparticle. Finally, we conclude that electron mobility indeed limits the rate of interfacial electron transfer in these systems, with the slowest processes relating to escape from deep traps, the presence of which outweighs the influence of environmental factors, such as pH-dependent surface charge.« less

  18. Electron Mobility and Trapping in Ferrihydrite Nanoparticles

    DOE PAGES

    Soltis, Jennifer A.; Schwartzberg, Adam M.; Zarzycki, Piotr; ...

    2017-05-18

    Iron is the most abundant transition metal in the Earth’s crust, and naturally occurring iron oxide minerals play a commanding role in environmental redox reactions. Although iron oxide redox reactions are well-studied, their precise mechanisms are not fully understood. Recent work has shown that these involve electron transfer pathways within the solid, suggesting that overall reaction rates could be dependent upon electron mobility. Initial ultrafast spectroscopy studies of iron oxide nanoparticles sensitized by fluorescein derivatives supported a model for electron mobility based on polaronic hopping of electron charge carriers between iron sites, but the constitutive relationships between hopping mobilities andmore » interfacial charge transfer processes has remained obscured. In this paper, we developed a coarse-grained lattice Monte Carlo model to simulate the collective mobilities and lifetimes of these photoinjected electrons with respect to recombination with adsorbed dye molecules for essential nanophase ferrihydrite and tested predictions made by the simulations using pump–probe spectroscopy. We acquired optical transient absorption spectra as a function of the particle size and under a variety of solution conditions and used cryogenic transmission electron microscopy to determine the aggregation state of the nanoparticles. We observed biphasic electron recombination kinetics over time scales that spanned from picoseconds to microseconds, the slower regime of which was fit with a stretched exponential decay function. The recombination rates were weakly affected by the nanoparticle size and aggregation state, suspension pH, and injection of multiple electrons per nanoparticle. Finally, we conclude that electron mobility indeed limits the rate of interfacial electron transfer in these systems, with the slowest processes relating to escape from deep traps, the presence of which outweighs the influence of environmental factors, such as pH-dependent surface charge.« less

  19. High-fidelity video and still-image communication based on spectral information: natural vision system and its applications

    NASA Astrophysics Data System (ADS)

    Yamaguchi, Masahiro; Haneishi, Hideaki; Fukuda, Hiroyuki; Kishimoto, Junko; Kanazawa, Hiroshi; Tsuchida, Masaru; Iwama, Ryo; Ohyama, Nagaaki

    2006-01-01

    In addition to the great advancement of high-resolution and large-screen imaging technology, the issue of color is now receiving considerable attention as another aspect than the image resolution. It is difficult to reproduce the original color of subject in conventional imaging systems, and that obstructs the applications of visual communication systems in telemedicine, electronic commerce, and digital museum. To breakthrough the limitation of conventional RGB 3-primary systems, "Natural Vision" project aims at an innovative video and still-image communication technology with high-fidelity color reproduction capability, based on spectral information. This paper summarizes the results of NV project including the development of multispectral and multiprimary imaging technologies and the experimental investigations on the applications to medicine, digital archives, electronic commerce, and computer graphics.

  20. Mechanical flip-chip for ultra-high electron mobility devices

    DOE PAGES

    Bennaceur, Keyan; Schmidt, Benjamin A.; Gaucher, Samuel; ...

    2015-09-22

    In this study, electrostatic gates are of paramount importance for the physics of devices based on high-mobility two-dimensional electron gas (2DEG) since they allow depletion of electrons in selected areas. This field-effect gating enables the fabrication of a wide range of devices such as, for example, quantum point contacts (QPC), electron interferometers and quantum dots. To fabricate these gates, processing is usually performed on the 2DEG material, which is in many cases detrimental to its electron mobility. Here we propose an alternative process which does not require any processing of the 2DEG material other than for the ohmic contacts. Thismore » approach relies on processing a separate wafer that is then mechanically mounted on the 2DEG material in a flip-chip fashion. This technique proved successful to fabricate quantum point contacts on both GaAs/AlGaAs materials with both moderate and ultra-high electron mobility.« less

  1. Modelling impulsive factors for electronics and restaurant coupons’ e-store display

    NASA Astrophysics Data System (ADS)

    Ariningsih, P. K.; Nainggolan, M.; Sandy, I. A.

    2018-04-01

    In many times, the increment of e-store visitors does not followed by sales increment. Most purchases through e-commerce are impulsive buying, however only small amount of study is available to understand impulsive factors of e-store display. This paper suggests a preliminary concept on understanding the impulsive factors in Electronics and Restaurant Coupons e-store display, which are two among few popular group products sold through e-commerce. By conducting literature study and survey, 31 attributes were identified as impulsive factors in electronics e-store display and 20 attributes were identified as impulsive factors for restaurant coupon e-store. The attributes were then grouped into comprehensive impulsive factors by factor analysis. Each group of impulsive attributes were generated into 3 factors. Accessibility Factors and Trust Factors appeared for each group products. The other factors are Internal Factors for electronics e-store and Marketing factors for restaurant coupons e-store. Structural Equation Model of the impulsive factors was developed for each type of e-store, which stated the covariance between Trust Factors and Accessibility Factors. Based on preliminary model, Internal Factor and Trust Factor are influencing impulsive buying in electronics store. Special factor for electronics e-store is Internal Factor, while for restaurant coupons e-store is Marketing Factor.

  2. Carrier mobility in double-helix DNA and RNA: A quantum chemistry study with Marcus-Hush theory.

    PubMed

    Wu, Tao; Sun, Lei; Shi, Qi; Deng, Kaiming; Deng, Weiqiao; Lu, Ruifeng

    2016-12-21

    Charge mobilities of six DNAs and RNAs have been computed using quantum chemistry calculation combined with the Marcus-Hush theory. Based on this simulation model, we obtained quite reasonable results when compared with the experiment, and the obtained charge mobility strongly depends on the molecular reorganization and electronic coupling. Besides, we find that hole mobilities are larger than electron mobilities no matter in DNAs or in RNAs, and the hole mobility of 2L8I can reach 1.09 × 10 -1 cm 2 V -1 s -1 which can be applied in the molecular wire. The findings also show that our theoretical model can be regarded as a promising candidate for screening DNA- and RNA-based molecular electronic devices.

  3. Carrier mobility in double-helix DNA and RNA: A quantum chemistry study with Marcus-Hush theory

    NASA Astrophysics Data System (ADS)

    Wu, Tao; Sun, Lei; Shi, Qi; Deng, Kaiming; Deng, Weiqiao; Lu, Ruifeng

    2016-12-01

    Charge mobilities of six DNAs and RNAs have been computed using quantum chemistry calculation combined with the Marcus-Hush theory. Based on this simulation model, we obtained quite reasonable results when compared with the experiment, and the obtained charge mobility strongly depends on the molecular reorganization and electronic coupling. Besides, we find that hole mobilities are larger than electron mobilities no matter in DNAs or in RNAs, and the hole mobility of 2L8I can reach 1.09 × 10-1 cm2 V-1 s-1 which can be applied in the molecular wire. The findings also show that our theoretical model can be regarded as a promising candidate for screening DNA- and RNA-based molecular electronic devices.

  4. Polaron mobility obtained by a variational approach for lattice Fröhlich models

    NASA Astrophysics Data System (ADS)

    Kornjača, Milan; Vukmirović, Nenad

    2018-04-01

    Charge carrier mobility for a class of lattice models with long-range electron-phonon interaction was investigated. The approach for mobility calculation is based on a suitably chosen unitary transformation of the model Hamiltonian which transforms it into the form where the remaining interaction part can be treated as a perturbation. Relevant spectral functions were then obtained using Matsubara Green's functions technique and charge carrier mobility was evaluated using Kubo's linear response formula. Numerical results were presented for a wide range of electron-phonon interaction strengths and temperatures in the case of one-dimensional version of the model. The results indicate that the mobility decreases with increasing temperature for all electron-phonon interaction strengths in the investigated range, while longer interaction range leads to more mobile carriers.

  5. Fundamental limits on the electron mobility of β-Ga2O3

    NASA Astrophysics Data System (ADS)

    Kang, Youngho; Krishnaswamy, Karthik; Peelaers, Hartwin; Van de Walle, Chris G.

    2017-06-01

    We perform first-principles calculations to investigate the electronic and vibrational spectra and the electron mobility of β-Ga2O3. We calculate the electron-phonon scattering rate of the polar optical phonon modes using the Vogl model in conjunction with Fermi’s golden rule; this enables us to fully take the anisotropic phonon spectra of the monoclinic lattice of β-Ga2O3 into account. We also examine the scattering rate due to ionized impurities or defects using a Yukawa-potential-based model. We consider scattering due to donor impurities, as well as the possibility of compensation by acceptors such as Ga vacancies. We then calculate the room-temperature mobility of β-Ga2O3 using the Boltzmann transport equation within the relaxation time approximation, for carrier densities in the range from 1017 to 1020 cm-3. We find that the electron-phonon interaction dominates the mobility for carrier densities of up to 1019 cm-3. We also find that the intrinsic anisotropy in the mobility is small; experimental findings of large anisotropy must therefore be attributed to other factors. We attribute the experimentally observed reduction of the mobility with increasing carrier density to increasing levels of compensation, which significantly affect the mobility.

  6. Fundamental limits on the electron mobility of β-Ga2O3.

    PubMed

    Kang, Youngho; Krishnaswamy, Karthik; Peelaers, Hartwin; Van de Walle, Chris G

    2017-06-14

    We perform first-principles calculations to investigate the electronic and vibrational spectra and the electron mobility of β-Ga 2 O 3 . We calculate the electron-phonon scattering rate of the polar optical phonon modes using the Vogl model in conjunction with Fermi's golden rule; this enables us to fully take the anisotropic phonon spectra of the monoclinic lattice of β-Ga 2 O 3 into account. We also examine the scattering rate due to ionized impurities or defects using a Yukawa-potential-based model. We consider scattering due to donor impurities, as well as the possibility of compensation by acceptors such as Ga vacancies. We then calculate the room-temperature mobility of β-Ga 2 O 3 using the Boltzmann transport equation within the relaxation time approximation, for carrier densities in the range from 10 17 to 10 20 cm -3 . We find that the electron-phonon interaction dominates the mobility for carrier densities of up to 10 19 cm -3 . We also find that the intrinsic anisotropy in the mobility is small; experimental findings of large anisotropy must therefore be attributed to other factors. We attribute the experimentally observed reduction of the mobility with increasing carrier density to increasing levels of compensation, which significantly affect the mobility.

  7. 19 CFR 122.76 - Shipper's Export Declarations and inspection certificates.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members...

  8. 19 CFR 122.72 - Aircraft departing with commercial export cargo.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members...

  9. Diverse carrier mobility of monolayer BNCx: A combined density functional theory and Boltzmann transport theory study.

    PubMed

    Wu, Tao; Deng, Kaiming; Deng, Wei-Qiao; Lu, Ruifeng

    2017-09-19

    BNCX monolayer as a kind of two-dimensional material has numerous chemical atomic ratios and arrangements with different electronic structures. Via calculations on the basis of density functional theory and Boltzmann transport theory under deformation potential approximation, the band structures and carrier mobilities of BNCX (x=1,2,3,4) nanosheets are systematically investigated. The calculated results show that BNC2-1 is a material with very small band gap (0.02 eV) among all the structures while other BNCX monolayers are semiconductors with band gap ranging from 0.51 to 1.32 eV. The carrier mobility of BNCX varies considerably from tens to millions of cm2 V-1 s-1. For BNC2-1, the hole mobility and electron mobility along both x and y directions can reach 105 orders of magnitude, which is similar to the carrier mobility of graphene. Besides, all studied BNCX monolayers obviously have anisotropic hole mobility and electron mobility. In particular, for semiconductor BNC4, its hole mobility along y direction and electron mobility along x direction unexpectedly reach 106 orders of magnitude, even higher than that of graphene. Our findings suggest that BNCX layered materials with proper ratio and arrangement of carbon atoms will possess desirable charge transport properties, exhibiting potential applications in nanoelectronic devices. © 2017 IOP Publishing Ltd.

  10. 19 CFR 122.71 - Aircraft departing with no commercial export cargo.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members...

  11. 19 CFR 122.73 - General declaration and air cargo manifest.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non-Crew Members Onboard Commercial...

  12. "In a Little while I Could Be in Front": Social Mobility, Class, and Gender in the Computer Practices of Two Mexicano Families

    ERIC Educational Resources Information Center

    Menard-Warwick, Julia; Dabach, Dafney Blanca

    2004-01-01

    This investigation compares the computer practices of the Garza family, from the first study, with those of the Fuentes family, from the second study. As both families are of Mexican origin, they belong to an ethnicity that has been reported as falling on the "have-not" side of the "divide" (U.S. Department of Commerce, 1999);…

  13. The effect of system aesthetics on trust, cooperation, satisfaction and annoyance in an imperfect automated system.

    PubMed

    Weinstock, Alona; Oron-Gilad, Tal; Parmet, Yisrael

    2012-01-01

    Lack of system reliability has been repeatedly identified as a factor that decreases trust. However, aesthetics has an important role in the development of trust. Most of the research concerning the connection between aesthetics and trust focused on mobile commerce and websites while very little has been done in examining aesthetics in automated systems. This study integrated aesthetics manipulations into an imperfect in-vehicle automation system and focused on the power of aesthetics to decrease the negative effects of errors on trust, satisfaction, annoyance, and human-automation cooperation perceptions. Participants used the navigation system in either 100% or 85% accuracy levels with an aesthetic or non aesthetic system (4 conditions). In both aesthetic and non aesthetic systems, perceptions of trust, satisfaction and human automation cooperation were decreased in the imperfect system compared to the perfect one. However, in the annoyance rating, this trend was found only in the aesthetic system while in the non-aesthetic system no difference was found between the two levels of accuracy. This single effect may indicate upon the possibility that in automated systems aesthetics affects trust and satisfaction more moderately compared to mobile commerce applications and websites. However, more research is needed to assess this assumption.

  14. Present status of recycling waste mobile phones in China: a review.

    PubMed

    Li, Jingying; Ge, Zhongying; Liang, Changjin; An, Ni

    2017-07-01

    A large number of waste mobile phones have already been generated and are being generated. Various countries around the world have all been positively exploring the way of recycling and reuse when facing such a large amount of waste mobile phones. In some countries, processing waste mobile phones has been forming a complete industrial chain, which can not only recycle waste mobile phones to reduce their negative influence on the environment but also turn waste into treasure to acquire economic benefits dramatically. However, the situation of recycling waste mobile phones in China is not going well. Waste mobile phones are not formally covered by existing regulations and policies for the waste electric and electronic equipment in China. In order to explore an appropriate system to recover waste mobile phones, the mobile phone production and the amount of waste mobile phones are introduced in this paper, and status of waste mobile phones recycling is described; then, the disposal technology of electronic waste that would be most likely to be used for processing of electronic waste in industrial applications in the near future is reviewed. Finally, rationalization proposals are put forward based on the current recovery status of waste mobile phones for the purpose of promoting the development of recycling waste mobile phones in developing countries with a special emphasis on China.

  15. Enhanced electron mobility at the two-dimensional metallic surface of BaSnO3 electric-double-layer transistor at low temperatures

    NASA Astrophysics Data System (ADS)

    Fujiwara, Kohei; Nishihara, Kazuki; Shiogai, Junichi; Tsukazaki, Atsushi

    2017-05-01

    Wide-bandgap oxides exhibiting high electron mobility hold promise for the development of useful electronic and optoelectronic devices as well as for basic research on two-dimensional electron transport phenomena. A perovskite-type tin oxide, BaSnO3, is currently one of such targets owing to distinctly high mobility at room temperature. The challenge to overcome towards the use of BaSnO3 thin films in applications is suppression of dislocation scattering, which is one of the dominant scattering origins for electron transport. Here, we show that the mobility of the BaSnO3 electric-double-layer transistor reaches 300 cm2 V-1 s-1 at 50 K. The improved mobility indicates that charged dislocation scattering is effectively screened by electrostatically doped high-density charge carriers. We also observed metallic conduction persisting down to 2 K, which is attributed to the transition to the degenerate semiconductor. The experimental verification of bulk-level mobility at the densely accumulated surface sheds more light on the importance of suppression of dislocation scattering by interface engineering in doped BaSnO3 thin films for transparent electrode applications.

  16. Research on Credit Evaluation of Mobile Medical APP Interactive Online Consultation Service-Take Haodaifu APP Online Payment Service as an Example

    NASA Astrophysics Data System (ADS)

    Xiong, Dandan; Zhao, Lei

    2017-10-01

    Mobile medical industry is developing rapidly, but the relevant credit evaluation system is still in the exploratory stage. Haodaifu in the interactive online consulting services more representatives and has a credit evaluation system, but the system is not perfect. There are many problems in the system, such as credits indicators cannot better reflect the results of user’s evaluation, the lack of user qualification supervision, evaluation index system and assessment channels are not perfect. On the basis of drawing on the advantages of E-commerce evaluation system and combining with the characteristics of mobile medical itself, two suggestions are put forward: Improve the credit evaluation model (Generate physician static credit index, Change the doctor 's dynamic credit index algorithm, Update the dynamic credit index), Improve the basic mechanism of credit evaluation.

  17. Effects of macroscopic inhomogeneities on electron mobility in semi-insulating GaAs

    NASA Technical Reports Server (NTRS)

    Walukiewicz, W.; Wang, L.; Pawlowicz, L. M.; Lagowski, J.; Gatos, H. C.

    1986-01-01

    It is shown that defect inhomogeneities of sizes larger than the electron mean free path are responsible for the low values and anomalous temperature dependence of the electron mobility in semi-insulating (SI) GaAs. The room-temperature electron mobility values below about 6000 sq cm/V s cannot be uniquely used for the determination of the concentration of ionized defects, since the contribution from inhomogeneities usually exceeds that from scattering by ionized impurities. The effects of the macroscopically inhomogeneous distribution of residual acceptors and the major deep donor EL2 diminish at elevated temperatures between 600 and 900 K, which offers a means for identification of inhomogeneities, and furthermore explains recently reported steplike mobility versus temperature behavior in SI-GaAs.

  18. Charge transport in metal oxides: A theoretical study of hematite α-Fe2O3

    NASA Astrophysics Data System (ADS)

    Iordanova, N.; Dupuis, M.; Rosso, K. M.

    2005-04-01

    Transport of conduction electrons and holes through the lattice of α-Fe2O3 (hematite) is modeled as a valence alternation of iron cations using ab initio electronic structure calculations and electron transfer theory. Experimental studies have shown that the conductivity along the (001) basal plane is four orders of magnitude larger than the conductivity along the [001] direction. In the context of the small polaron model, a cluster approach was used to compute quantities controlling the mobility of localized electrons and holes, i.e., the reorganization energy and the electronic coupling matrix element that enter Marcus' theory. The calculation of the electronic coupling followed the generalized Mulliken-Hush approach using the complete active space self-consistent field method. Our findings demonstrate an approximately three orders of magnitude anisotropy in both electron and hole mobility between directions perpendicular and parallel to the c axis, in good accord with experimental data. The anisotropy arises from the slowness of both electron and hole mobilities across basal oxygen planes relative to that within iron bilayers between basal oxygen planes. Interestingly, for elementary reaction steps along either of the directions considered, there is only less than one order of magnitude difference in mobility between electrons and holes, in contrast to accepted classical arguments. Our findings indicate that the most important quantity underlying mobility differences is the electronic coupling, albeit the reorganization energy contributes as well. The large values computed for the electronic coupling suggest that charge transport reactions in hematite are adiabatic in nature. The electronic coupling is found to depend on both the superexchange interaction through the bridging oxygen atoms and the d-shell electron spin coupling within the Fe-Fe donor-acceptor pair, while the reorganization energy is essentially independent of the electron spin coupling.

  19. 48 CFR 504.502 - Policy.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... MATTERS Electronic Commerce in Contracting 504.502 Policy. (a) The EPS is GSA's primary vehicle for... your authority to obtain oral quotations or proposals as authorized by regulation (e.g., FAR 13.106-1...

  20. Improvement of electron mobility in La:BaSnO{sub 3} thin films by insertion of an atomically flat insulating (Sr,Ba)SnO{sub 3} buffer layer

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Shiogai, Junichi, E-mail: junichi.shiogai@imr.tohoku.ac.jp; Nishihara, Kazuki; Sato, Kazuhisa

    One perovskite oxide, ASnO{sub 3} (A = Sr, Ba), is a candidate for use as a transparent conductive oxide with high electron mobility in single crystalline form. However, the electron mobility of films grown on SrTiO{sub 3} substrates does not reach the bulk value, probably because of dislocation scattering that originates from the large lattice mismatch. This study investigates the effect of insertion of bilayer BaSnO{sub 3} / (Sr,Ba)SnO{sub 3} for buffering this large lattice mismatch between La:BaSnO{sub 3} and SrTiO{sub 3} substrate. The insertion of 200-nm-thick BaSnO{sub 3} on (Sr,Ba)SnO{sub 3} bilayer buffer structures reduces the number of dislocationsmore » and improves surface smoothness of the films after annealing as proved respectively by scanning transmission electron microscopy and atomic force microscopy. A systematic investigation of BaSnO{sub 3} buffer layer thickness dependence on Hall mobility of the electron transport in La:BaSnO{sub 3} shows that the highest obtained value of mobility is 78 cm{sup 2}V{sup −1}s{sup −1} because of its fewer dislocations. High electron mobility films based on perovskite BaSnO{sub 3} can provide a good platform for transparent-conducting-oxide electronic devices and for creation of fascinating perovskite heterostructures.« less

  1. Electron and proton transfer in chloroplasts in silico. 2: The effect of diffusion limitations on the process of photosynthesis in spatially inhomogeneous thylakoids

    NASA Astrophysics Data System (ADS)

    Vershubskii, A. V.; Tikhonov, A. N.

    2017-07-01

    The lateral mobility of protons and mobile electron carriers (plastoquinone and plastocyanin) is subjected to diffusion limitations; the effect of these limitations on the kinetics of photoinduced pH i changes has been investigated in the present work for metabolic states 3 (conditions of intensive ATP synthesis) and 4 (the state of photosynthetic control). Computer simulations were based on a mathematical model of electron and proton transport in chloroplasts developed earlier by the authors. Non-uniform distribution of electron carriers and ATP synthase complexes in the membranes of grana and intergranal thylakoids was taken into account in the model. The kinetics of intrathylakoid pH i changes and the lateral profiles of distribution of the mobile electron transporters in granal and intergranal thylakoids were studied. The formation of non-uniform pH i profiles (with lumen acidification in the central parts of the grana being substantially slower than in the stromal thylakoids) was shown to occur under the conditions of ATP synthesis. Variation of the diffusion coefficients of intrathylakoid hydrogen ions and mobile electron carriers (plastoquinone and plastocyanin) can have substantial effects on the lateral pH i profiles and the redox state of the mobile electron carriers.

  2. Inhibiting Low-Frequency Vibrations Explains Exceptionally High Electron Mobility in 2,5-Difluoro-7,7,8,8-tetracyanoquinodimethane (F2-TCNQ) Single Crystals.

    PubMed

    Chernyshov, Ivan Yu; Vener, Mikhail V; Feldman, Elizaveta V; Paraschuk, Dmitry Yu; Sosorev, Andrey Yu

    2017-07-06

    Organic electronics requires materials with high charge mobility. Despite decades of intensive research, charge transport in high-mobility organic semiconductors has not been well understood. In this Letter, we address the physical mechanism underlying the exceptionally high band-like electron mobility in F 2 -TCNQ (2,5-difluoro-7,7,8,8-tetracyanoquinodimethane) single crystals among a crystal family of similar compounds F n -TCNQ (n = 0, 2, 4) using a combined experimental and theoretical approach. While electron transfer integrals and reorganization energies did not show outstanding features for F 2 -TCNQ, Raman spectroscopy and solid-state DFT indicated that the frequency of the lowest vibrational mode is nearly twice higher in the F 2 -TCNQ crystal than in TCNQ and F 4 -TCNQ. This phenomenon is explained by the specific packing motif of F 2 -TCNQ with only one molecule per primitive cell so that electron-phonon interaction decreases and the electron mobility increases. We anticipate that our findings will encourage investigators for the search and design of organic semiconductors with one molecule per primitive cell and/or the poor low-frequency vibrational spectrum.

  3. Design rules for charge-transport efficient host materials for phosphorescent organic light-emitting diodes.

    PubMed

    May, Falk; Al-Helwi, Mustapha; Baumeier, Björn; Kowalsky, Wolfgang; Fuchs, Evelyn; Lennartz, Christian; Andrienko, Denis

    2012-08-22

    The use of blue phosphorescent emitters in organic light-emitting diodes (OLEDs) imposes demanding requirements on a host material. Among these are large triplet energies, the alignment of levels with respect to the emitter, the ability to form and sustain amorphous order, material processability, and an adequate charge carrier mobility. A possible design strategy is to choose a π-conjugated core with a high triplet level and to fulfill the other requirements by using suitable substituents. Bulky substituents, however, induce large spatial separations between conjugated cores, can substantially reduce intermolecular electronic couplings, and decrease the charge mobility of the host. In this work we analyze charge transport in amorphous 2,8-bis(triphenylsilyl)dibenzofuran, an electron-transporting material synthesized to serve as a host in deep-blue OLEDs. We show that mesomeric effects delocalize the frontier orbitals over the substituents recovering strong electronic couplings and lowering reorganization energies, especially for electrons, while keeping energetic disorder small. Admittance spectroscopy measurements reveal that the material has indeed a high electron mobility and a small Poole-Frenkel slope, supporting our conclusions. By linking electronic structure, molecular packing, and mobility, we provide a pathway to the rational design of hosts with high charge mobilities.

  4. 77 FR 8220 - Submission for OMB Review; Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-14

    ...) technology to support electronic commerce between the USPTO and its customers. In order to access secure... Management and Budget (OMB) for clearance the following proposal for collection of information under the...

  5. 48 CFR 4.501 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false [Reserved] 4.501 Section 4.501 Federal Acquisition Regulations System FEDERAL ACQUISITION REGULATION GENERAL ADMINISTRATIVE MATTERS Electronic Commerce in Contracting 4.501 [Reserved] ...

  6. 15 CFR 30.2 - General requirements for filing Electronic Export Information (EEI).

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... any mode of transportation. (Instructions for filing EEI for vessels, aircraft, railway cars, and... of export shipments, regardless of value: (A) Requiring a Department of Commerce, Bureau of Industry...

  7. 15 CFR 30.2 - General requirements for filing Electronic Export Information (EEI).

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... any mode of transportation. (Instructions for filing EEI for vessels, aircraft, railway cars, and... of export shipments, regardless of value: (A) Requiring a Department of Commerce, Bureau of Industry...

  8. Application of LOD technology to the economic residence GIS for industry and commerce administration

    NASA Astrophysics Data System (ADS)

    Song, Yongjun; Feng, Xuezhi; Zhao, Shuhe; Yin, Haiwei; Li, Yulin; Cui, Hongxia; Zhang, Hui; Zhong, Quanbao

    2007-06-01

    The LOD technology has an impact upon the multi-scale representation of spatial database. This paper takes advantage of LOD technology to express the multi-scale geographical data, and establish the exchange of multi-scale electronic map, further attain the goal that the details of geographic features such as point, line and polygon can be displayed more and more clearly with the display scale being enlarged to be convenient for the personnel of all offices of industry and commerce administration to label the locations of the corporations or enterprises.

  9. Cloud computing in pharmaceutical R&D: business risks and mitigations.

    PubMed

    Geiger, Karl

    2010-05-01

    Cloud computing provides information processing power and business services, delivering these services over the Internet from centrally hosted locations. Major technology corporations aim to supply these services to every sector of the economy. Deploying business processes 'in the cloud' requires special attention to the regulatory and business risks assumed when running on both hardware and software that are outside the direct control of a company. The identification of risks at the correct service level allows a good mitigation strategy to be selected. The pharmaceutical industry can take advantage of existing risk management strategies that have already been tested in the finance and electronic commerce sectors. In this review, the business risks associated with the use of cloud computing are discussed, and mitigations achieved through knowledge from securing services for electronic commerce and from good IT practice are highlighted.

  10. Diverse carrier mobility of monolayer BNC x : a combined density functional theory and Boltzmann transport theory study.

    PubMed

    Wu, Tao; Deng, Kaiming; Deng, Weiqiao; Lu, Ruifeng

    2017-10-19

    BNC x monolayer as a kind of two-dimensional material has numerous chemical atomic ratios and arrangements with different electronic structures. Via calculations on the basis of density functional theory and Boltzmann transport theory under deformation potential approximation, the band structures and carrier mobilities of BNC x (x  =  1,2,3,4) nanosheets are systematically investigated. The calculated results show that BNC 2 -1 is a material with very small band gap (0.02 eV) among all the structures while other BNC x monolayers are semiconductors with band gap ranging from 0.51 eV to 1.32 eV. The carrier mobility of BNC x varies considerably from tens to millions of cm 2 V -1 s -1 . For BNC 2 -1, the hole mobility and electron mobility along both x and y directions can reach 10 5 orders of magnitude, which is similar to the carrier mobility of graphene. Besides, all studied BNC x monolayers obviously have anisotropic hole mobility and electron mobility. In particular, for semiconductor BNC 4 , its hole mobility along the y direction and electron mobility along the x direction unexpectedly reach 10 6 orders of magnitude, even higher than that of graphene. Our findings suggest that BNC x layered materials with the proper ratio and arrangement of carbon atoms will possess desirable charge transport properties, exhibiting potential applications in nanoelectronic devices.

  11. Diverse carrier mobility of monolayer BNC x : a combined density functional theory and Boltzmann transport theory study

    NASA Astrophysics Data System (ADS)

    Wu, Tao; Deng, Kaiming; Deng, Weiqiao; Lu, Ruifeng

    2017-11-01

    BNC x monolayer as a kind of two-dimensional material has numerous chemical atomic ratios and arrangements with different electronic structures. Via calculations on the basis of density functional theory and Boltzmann transport theory under deformation potential approximation, the band structures and carrier mobilities of BNC x (x  =  1,2,3,4) nanosheets are systematically investigated. The calculated results show that BNC2-1 is a material with very small band gap (0.02 eV) among all the structures while other BNC x monolayers are semiconductors with band gap ranging from 0.51 eV to 1.32 eV. The carrier mobility of BNC x varies considerably from tens to millions of cm2 V-1 s-1. For BNC2-1, the hole mobility and electron mobility along both x and y directions can reach 105 orders of magnitude, which is similar to the carrier mobility of graphene. Besides, all studied BNC x monolayers obviously have anisotropic hole mobility and electron mobility. In particular, for semiconductor BNC4, its hole mobility along the y direction and electron mobility along the x direction unexpectedly reach 106 orders of magnitude, even higher than that of graphene. Our findings suggest that BNC x layered materials with the proper ratio and arrangement of carbon atoms will possess desirable charge transport properties, exhibiting potential applications in nanoelectronic devices.

  12. Correlation between mobility collapse and carbon impurities in Si-doped GaN grown by low pressure metalorganic chemical vapor deposition

    NASA Astrophysics Data System (ADS)

    Kaess, Felix; Mita, Seiji; Xie, Jingqiao; Reddy, Pramod; Klump, Andrew; Hernandez-Balderrama, Luis H.; Washiyama, Shun; Franke, Alexander; Kirste, Ronny; Hoffmann, Axel; Collazo, Ramón; Sitar, Zlatko

    2016-09-01

    In the low doping range below 1 × 1017 cm-3, carbon was identified as the main defect attributing to the sudden reduction of the electron mobility, the electron mobility collapse, in n-type GaN grown by low pressure metalorganic chemical vapor deposition. Secondary ion mass spectroscopy has been performed in conjunction with C concentration and the thermodynamic Ga supersaturation model. By controlling the ammonia flow rate, the input partial pressure of Ga precursor, and the diluent gas within the Ga supersaturation model, the C concentration in Si-doped GaN was controllable from 6 × 1019 cm-3 to values as low as 2 × 1015 cm-3. It was found that the electron mobility collapsed as a function of free carrier concentration, once the Si concentration closely approached the C concentration. Lowering the C concentration to the order of 1015 cm-3 by optimizing Ga supersaturation achieved controllable free carrier concentrations down to 5 × 1015 cm-3 with a peak electron mobility of 820 cm2/V s without observing the mobility collapse. The highest electron mobility of 1170 cm2/V s was obtained even in metalorganic vapor deposition-grown GaN on sapphire substrates by optimizing growth parameters in terms of Ga supersaturation to reduce the C concentration.

  13. Electrical properties and subband occupancy at the (La ,Sr ) (Al ,Ta ) O3/SrTi O3 interface

    NASA Astrophysics Data System (ADS)

    Han, K.; Huang, Z.; Zeng, S. W.; Yang, M.; Li, C. J.; Zhou, W. X.; Wang, X. Renshaw; Venkatesan, T.; Coey, J. M. D.; Goiran, M.; Escoffier, W.; Ariando

    2017-06-01

    The quasi-two-dimensional electron gas at oxide interfaces provides a platform for investigating quantum phenomena in strongly correlated electronic systems. Here, we study the transport properties at the high-mobility (L a0.3S r0.7 ) (A l0.65T a0.35 ) O3/SrTi O3 interface. Before oxygen annealing, the as-grown interface exhibits a high electron density and electron occupancy of two subbands: higher-mobility electrons (μ1≈104c m2V-1s-1 at 2 K) occupy the lower-energy 3 dxy subband, while lower-mobility electrons (μ1≈103c m2V-1s-1 at 2 K) propagate in the higher-energy 3 dxz /yz -dominated subband. After removing oxygen vacancies by annealing in oxygen, only a single type of 3 dxy electrons remain at the annealed interface, showing tunable Shubnikov-de Haas oscillations below 9 T at 2 K and an effective mass of 0.7 me . By contrast, no oscillation is observed at the as-grown interface even when electron mobility is increased to 50 000 c m2V-1s-1 by gating voltage. Our results reveal the important roles of both carrier mobility and subband occupancy in tuning the quantum transport at oxide interfaces.

  14. Electron and hole transport in ambipolar, thin film pentacene transistors

    NASA Astrophysics Data System (ADS)

    Saudari, Sangameshwar R.; Kagan, Cherie R.

    2015-01-01

    Solution-processed, ambipolar, thin-film pentacene field-effect transistors were employed to study both electron and hole transport simultaneously in a single, organic solid-state device. Electron and hole mobilities were extracted from the respective unipolar saturation regimes and show thermally activated behavior and gate voltage dependence. We fit the gate voltage dependent saturation mobility to a power law to extract the characteristic Meyer-Neldel (MN) energy, a measure of the width of the exponential distribution of localized states extending into the energy gap of the organic semiconductor. The MN energy is ˜78 and ˜28 meV for electrons and holes, respectively, which reflects a greater density of localized tail states for electrons than holes. This is consistent with the lower measured electron than hole mobility. For holes, the well-behaved linear regime allows for four-point probe measurement of the contact resistance independent mobility and separate characterization of the width of the localized density of states, yielding a consistent MN energy of 28 meV.

  15. 75 FR 4583 - In the Matter of: Certain Electronic Devices, Including Mobile Phones, Portable Music Players...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-28

    ..., Including Mobile Phones, Portable Music Players, and Computers; Notice of Investigation AGENCY: U.S... music players, and computers, by reason of infringement of certain claims of U.S. Patent Nos. 6,714,091... importation of certain electronic devices, including mobile phones, portable music players, or computers that...

  16. Magnetization processes and existence of reentrant phase transitions in coupled spin-electron model on doubly decorated planar lattices

    NASA Astrophysics Data System (ADS)

    Čenčariková, Hana; Strečka, Jozef; Gendiar, Andrej

    2018-04-01

    An alternative model for a description of magnetization processes in coupled 2D spin-electron systems has been introduced and rigorously examined using the generalized decoration-iteration transformation and the corner transfer matrix renormalization group method. The model consists of localized Ising spins placed on nodal lattice sites and mobile electrons delocalized over the pairs of decorating sites. It takes into account a hopping term for mobile electrons, the Ising coupling between mobile electrons and localized spins as well as the Zeeman term acting on both types of particles. The ground-state and finite-temperature phase diagrams were established and comprehensively analyzed. It was found that the ground-state phase diagrams are very rich depending on the electron hopping and applied magnetic field. The diversity of magnetization curves can be related to intermediate magnetization plateaus, which may be continuously tuned through the density of mobile electrons. In addition, the existence of several types of reentrant phase transitions driven either by temperature or magnetic field was proven.

  17. Extreme mobility enhancement of two-dimensional electron gases at oxide interfaces by charge-transfer-induced modulation doping

    NASA Astrophysics Data System (ADS)

    Chen, Y. Z.; Trier, F.; Wijnands, T.; Green, R. J.; Gauquelin, N.; Egoavil, R.; Christensen, D. V.; Koster, G.; Huijben, M.; Bovet, N.; Macke, S.; He, F.; Sutarto, R.; Andersen, N. H.; Sulpizio, J. A.; Honig, M.; Prawiroatmodjo, G. E. D. K.; Jespersen, T. S.; Linderoth, S.; Ilani, S.; Verbeeck, J.; van Tendeloo, G.; Rijnders, G.; Sawatzky, G. A.; Pryds, N.

    2015-08-01

    Two-dimensional electron gases (2DEGs) formed at the interface of insulating complex oxides promise the development of all-oxide electronic devices. These 2DEGs involve many-body interactions that give rise to a variety of physical phenomena such as superconductivity, magnetism, tunable metal-insulator transitions and phase separation. Increasing the mobility of the 2DEG, however, remains a major challenge. Here, we show that the electron mobility is enhanced by more than two orders of magnitude by inserting a single-unit-cell insulating layer of polar La1-xSrxMnO3 (x = 0, 1/8, and 1/3) at the interface between disordered LaAlO3 and crystalline SrTiO3 produced at room temperature. Resonant X-ray spectroscopy and transmission electron microscopy show that the manganite layer undergoes unambiguous electronic reconstruction, leading to modulation doping of such atomically engineered complex oxide heterointerfaces. At low temperatures, the modulation-doped 2DEG exhibits Shubnikov-de Haas oscillations and fingerprints of the quantum Hall effect, demonstrating unprecedented high mobility and low electron density.

  18. High Electron Mobility and Insights into Temperature-Dependent Scattering Mechanisms in InAsSb Nanowires.

    PubMed

    Boland, Jessica L; Amaduzzi, Francesca; Sterzl, Sabrina; Potts, Heidi; Herz, Laura M; Fontcuberta I Morral, Anna; Johnston, Michael B

    2018-06-13

    InAsSb nanowires are promising elements for thermoelectric devices, infrared photodetectors, high-speed transistors, as well as thermophotovoltaic cells. By changing the Sb alloy fraction the mid-infrared bandgap energy and thermal conductivity may be tuned for specific device applications. Using both terahertz and Raman noncontact probes, we show that Sb alloying increases the electron mobility in the nanowires by over a factor of 3 from InAs to InAs 0.65 Sb 0.35 . We also extract the temperature-dependent electron mobility via both terahertz and Raman spectroscopy, and we report the highest electron mobilities for InAs 0.65 Sb 0.35 nanowires to date, exceeding 16,000 cm 2 V -1 s -1 at 10 K.

  19. Universal Correlation between Flatband Voltage and Electron Mobility in TiN/HfSiON Devices with MgO or La2O3 Incorporation and Stack Variation

    NASA Astrophysics Data System (ADS)

    Mise, Nobuyuki; Kadoshima, Masaru; Morooka, Tetsu; Eimori, Takahisa; Nara, Yasuo; Ohji, Yuzuru

    2008-10-01

    We investigated the controversial effective workfunction and electron mobility of TiN/HfSiON devices by intentionally adding MgO or La2O3 into HfSiON and by changing the material on TiN or the TiN thickness. As a result, we found a close relationship between the electron mobility at low effective field and the flatband voltage. This relationship is explained on the basis of the fixed charge in HfSiON and its neutralization. The intrinsic workfunction of TiN/HfSiON without charge is determined to be 4.3 eV from the flatband voltage when the electron mobility at low effective field is the highest.

  20. Achieving high field-effect mobility in amorphous indium-gallium-zinc oxide by capping a strong reduction layer.

    PubMed

    Zan, Hsiao-Wen; Yeh, Chun-Cheng; Meng, Hsin-Fei; Tsai, Chuang-Chuang; Chen, Liang-Hao

    2012-07-10

    An effective approach to reduce defects and increase electron mobility in a-IGZO thin-film transistors (a-IGZO TFTs) is introduced. A strong reduction layer, calcium, is capped onto the back interface of a-IGZO TFT. After calcium capping, the effective electron mobility of a-IGZO TFT increases from 12 cm(2) V(-1) s(-1) to 160 cm(2) V(-1) s(-1). This high mobility is a new record, which implies that the proposed defect reduction effect is key to improve electron transport in oxide semiconductor materials. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  1. Theoretical study of the two-dimensional electron mobility in strained III-nitride heterostructures

    NASA Astrophysics Data System (ADS)

    Yu, Tsung-Hsing; Brennan, Kevin F.

    2001-04-01

    We present calculations of the two-dimensional (2D) electron mobility in III-nitride heterojunction structures in the presence of spontaneous and piezoelectrically induced polarization effects. The calculations are made using a self-consistent solution of the Schrödinger, Poisson, charge and potential balance equations. It is found that the polarization fields act to significantly increase the 2D sheet charge concentration while reducing the mobility. The mobility reduction results from the enhanced band bending and subsequent attraction of the electrons to the heterointerface where they experience increased surface roughness scattering. Good agreement is obtained between the theoretical calculations and experimental measurements over the full temperature range examined. Comparison of the mobility in InGaN/GaN to AlGaN/GaN heterostructures is made. It is found that the mobility is significantly higher in the InGaN/GaN structure than in the AlGaN/GaN structure.

  2. Carrier mobility degradation due to high dose implantation in ultrathin unstrained and strained silicon-on-insulator films

    NASA Astrophysics Data System (ADS)

    Dupré, C.; Ernst, T.; Hartmann, J.-M.; Andrieu, F.; Barnes, J.-P.; Rivallin, P.; Faynot, O.; Deleonibus, S.; Fazzini, P. F.; Claverie, A.; Cristoloveanu, S.; Ghibaudo, G.; Cristiano, F.

    2007-11-01

    Based on electrical measurements and transmission electron microscopy (TEM) imaging, we propose an explanation for the electron and hole mobility degradation with gate length reduction in metal-oxide-semiconductor field effect transistors (MOSFETs). We demonstrate that ion implantation, normally used for source/drain doping, is responsible for transport degradation for short-channel devices. Implantation impact on electrons and holes mobility was investigated both on silicon-on-insulator (SOI) and tensile strained silicon-on-insulator (sSOI) substrates. Wafers with ultrathin Si films (from 8 to 35 nm) were Ge implanted at 3 keV and various concentrations (from 5×1014 to 2×1015 atoms cm-2), then annealed at 600 °C for 1 h. Secondary ion mass spectrometry enabled us to quantify the Ge-implanted atoms concentrations. The end-of-range defects impact on mobility was investigated with the pseudo-MOSFET technique. Measurements showed a mobility decrease as the implantation dose increased. We demonstrated that sSOI mobility is more sensitive to implantation than SOI mobility, without any implantation-induced strain relaxation in sSOI (checked using the ultraviolet Raman technique). A 36% (25%) holes (electrons) mobility degradation was measured for sSOI, while SOI presented a 21% mobility degradation for holes and 5% for electrons. Finally, the electrical results were compared with morphological studies. Plan-view TEM showed the presence of interstitial defects formed during ion implantation and annealing. The defect density was estimated to be two times higher in sSOI than in SOI, which is in full agreement with electrical results mentioned before. The results are relevant for the optimization of the source and drain regions of advanced nanoscale SOI and sSOI transistors.

  3. A study on the electron transport properties of ZnON semiconductors with respect to the relative anion content

    PubMed Central

    Park, Jozeph; Kim, Yang Soo; Ok, Kyung-Chul; Park, Yun Chang; Kim, Hyun You; Park, Jin-Seong; Kim, Hyun-Suk

    2016-01-01

    High-mobility zinc oxynitride (ZnON) semiconductors were grown by RF sputtering using a Zn metal target in a plasma mixture of Ar, N2, and O2 gas. The RF power and the O2 to N2 gas flow rates were systematically adjusted to prepare a set of ZnON films with different relative anion contents. The carrier density was found to be greatly affected by the anion composition, while the electron mobility is determined by a fairly complex mechanism. First-principles calculations indicate that excess vacant nitrogen sites (VN) in N-rich ZnON disrupt the local electron conduction paths, which may be restored by having oxygen anions inserted therein. The latter are anticipated to enhance the electron mobility, and the exact process parameters that induce such a phenomenon can only be found experimentally. Contour plots of the Hall mobility and carrier density with respect to the RF power and O2 to N2 gas flow rate ratio indicate the existence of an optimum region where maximum electron mobility is obtained. Using ZnON films grown under the optimum conditions, the fabrication of high-performance devices with field-effect mobility values exceeding 120 cm2/Vs is demonstrated based on simple reactive RF sputtering methods. PMID:27098656

  4. 19 CFR 122.78 - Entry or withdrawal for exportation or for transportation and exportation.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Documents Required for Clearance and Permission To Depart; Electronic Manifest Requirements for Passengers, Crew Members, and Non...

  5. Protecting Children from Electronic Cigarette Advertising Act of 2014

    THOMAS, 113th Congress

    Sen. Boxer, Barbara [D-CA

    2014-02-26

    Senate - 02/26/2014 Read twice and referred to the Committee on Commerce, Science, and Transportation. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  6. Internet Technology in Electronic Commerce

    NASA Astrophysics Data System (ADS)

    Zhanys, A. B.; Tursinbaeva, A. F.

    2018-05-01

    Informatization is an active process of acquiring information as a valuable resource for development using Informatics tools in order to dramatically increase the intellectual level of civilization on this basis – humanistic reconstruction of the whole human life.

  7. The size-quantized oscillations of the optical-phonon-limited electron mobility in AlN/GaN/AlN nanoscale heterostructures

    NASA Astrophysics Data System (ADS)

    Pokatilov, E. P.; Nika, D. L.; Askerov, A. S.; Zincenco, N. D.; Balandin, A. A.

    2007-12-01

    nanometer scale thickness by taking into account multiple quantized electron subbands and the confined optical phonon dispersion. It was shown that the inter-subband electronic transitions play an important role in limiting the electron mobility in the heterostructures when the energy separation between one of the size-quantized excited electron subbands and the Fermi energy becomes comparable to the optical phonon energy. The latter leads to the oscillatory dependence of the electron mobility on the thickness of the heterostructure conduction channel layer. This effect is observable at room temperature and over a wide range of the carrier densities. The developed formalism and calculation procedure are readily applicable to other material systems. The described effect can be used for fine-tuning the confined electron and phonon states in the nanoscale heterostructures in order to achieve performance enhancement of the nanoscale electronic and optoelectronic devices.

  8. Molecular origin of differences in hole and electron mobility in amorphous Alq3--a multiscale simulation study.

    PubMed

    Fuchs, Andreas; Steinbrecher, Thomas; Mommer, Mario S; Nagata, Yuki; Elstner, Marcus; Lennartz, Christian

    2012-03-28

    In order to determine the molecular origin of the difference in electron and hole mobilities of amorphous thin films of Alq(3) (meridional Alq(3) (tris(8-hydroxyquinoline) aluminium)) we performed multiscale simulations covering quantum mechanics, molecular mechanics and lattice models. The study includes realistic disordered morphologies, polarized site energies to describe diagonal disorder, quantum chemically calculated transfer integrals for the off-diagonal disorder, inner sphere reorganization energies and an approximative scheme for outer sphere reorganization energies. Intermolecular transfer rates were calculated via Marcus-theory and mobilities were simulated via kinetic Monte Carlo simulations and by a Master Equation approach. The difference in electron and hole mobility originates from the different localization of charge density in the radical anion (more delocalized) compared to the radical cation (more confined). This results in higher diagonal disorder for holes and less favourable overlap properties for the hole transfer integrals leading to an overall higher electron mobility.

  9. Electron Mobility and Trapping in Ferrihydrite Nanoparticles

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Soltis, Jennifer A.; Schwartzberg, Adam M.; Zarzycki, Piotr

    Iron is the most abundant transition metal in the Earth's crust, and naturally occurring iron oxide minerals play a commanding role in environmental redox reactions. Although iron oxide redox reactions are well studied, their precise mechanisms are not fully understood. Recent work has shown that these involve electron transfer pathways within the solid, suggesting that overall reaction rates could be dependent on electron mobility. Initial ultrafast spectroscopy studies of iron oxide nanoparticles sensitized by fluorescein derivatives supported a model for electron mobility based on polaronic hopping of electron charge carriers between iron sites, but the constitutive relationships between hopping mobilitiesmore » and interfacial charge transfer processes has remained obscured. We developed a coarse-grained lattice Monte Carlo model to simulate the collective mobilities and lifetimes of these photoinjected electrons with respect to recombination with adsorbed dye molecules for the essential nanophase ferrihydrite, and tested predictions made by the simulations using pump-probe spectroscopy. We acquired optical transient absorption spectra as a function of particle size and under a variety of solution conditions, and used cryogenic transmission electron microscopy to determine the aggregation state of the nanoparticles. We observed biphasic electron recombination kinetics over timescales that spanned picoseconds to microseconds, the slower regime of which was fit with a stretched exponential decay function. The recombination rates were weakly affected by nanoparticle size and aggregation state, suspension pH, and the injection of multiple electrons per nanoparticle. We conclude that electron mobility indeed limits the rate of interfacial electron transfer in these systems with the slowest processes relating to escape from deep traps, the presence of which outweighs the influence of environmental factors such as pH-dependent surface charge.« less

  10. Digital mobile telephones and interference of ophthalmic equipment.

    PubMed

    Ang, G S; Lian, P; Ng, W S; Whyte, I; Ong, J M

    2007-01-01

    To assess the effect of mobile telephone electromagnetic interference on electronic ophthalmic equipment. Prospective audit with mobile telephones placed at distances of 3 m, 1 m, and 30 cm from, and in contact with, electronic ophthalmic equipment. Any interruption or cessation of the function of the ophthalmic device was assessed with the mobile telephones in standby, and in dialling or receiving modes. Any alterations of displayed digital figures or numbers were also assessed. A total of 23 electronic ophthalmic devices in two hospital ophthalmology outpatient departments were evaluated. All six mobile telephones used, and 22 (95.7%) of the 23 ophthalmic equipment evaluated had the Conformité Européene (CE) mark. No device showed any interruption or cessation of function. There were no alterations of displayed digital figures or numbers. The only effect of any kind was found with four instruments (1 non-CE marked), where there was temporary flickering on the screen, and only occurred when the mobile telephones were dialling or receiving at a distance of 30 cm or less from the instruments. This study shows that among the electronic ophthalmic devices tested, none suffered failure or interruption of function, from mobile telephone interference. Although not comprehensive for all ophthalmic equipment, the results question the need for a complete ban of mobile telephones in ophthalmic departments. It highlights the need for a controlled, objectively measured study of the clinically relevant effects of mobile telephones in the ophthalmology outpatient setting.

  11. Intraoperative radiation therapy using mobile electron linear accelerators: report of AAPM Radiation Therapy Committee Task Group No. 72.

    PubMed

    Beddar, A Sam; Biggs, Peter J; Chang, Sha; Ezzell, Gary A; Faddegon, Bruce A; Hensley, Frank W; Mills, Michael D

    2006-05-01

    Intraoperative radiation therapy (IORT) has been customarily performed either in a shielded operating suite located in the operating room (OR) or in a shielded treatment room located within the Department of Radiation Oncology. In both cases, this cancer treatment modality uses stationary linear accelerators. With the development of new technology, mobile linear accelerators have recently become available for IORT. Mobility offers flexibility in treatment location and is leading to a renewed interest in IORT. These mobile accelerator units, which can be transported any day of use to almost any location within a hospital setting, are assembled in a nondedicated environment and used to deliver IORT. Numerous aspects of the design of these new units differ from that of conventional linear accelerators. The scope of this Task Group (TG-72) will focus on items that particularly apply to mobile IORT electron systems. More specifically, the charges to this Task Group are to (i) identify the key differences between stationary and mobile electron linear accelerators used for IORT, (ii) describe and recommend the implementation of an IORT program within the OR environment, (iii) present and discuss radiation protection issues and consequences of working within a nondedicated radiotherapy environment, (iv) describe and recommend the acceptance and machine commissioning of items that are specific to mobile electron linear accelerators, and (v) design and recommend an efficient quality assurance program for mobile systems.

  12. Multifunction interferometry using the electron mobility visibility and mean free path relationship.

    PubMed

    Pornsuwancharoen, N; Youplao, P; Amiri, I S; Aziz, M S; Tran, Q L; Ali, J; Yupapin, P; Grattan, K T V

    2018-05-08

    A conventional Michelson interferometer is modified and used to form the various types of interferometers. The basic system consists of a conventional Michelson interferometer with silicon-graphene-gold embedded between layers on the ports. When light from the monochromatic source is input into the system via the input port (silicon waveguide), the change in optical path difference (OPD) of light traveling in the stacked layers introduces the change in the optical phase, which affects to the electron mean free path within the gold layer, induces the change in the overall electron mobility can be seen by the interferometer output visibility. Further plasmonic waves are introduced on the graphene thin film and the electron mobility occurred within the gold layer, in which the light-electron energy conversion in terms of the electron mobility can be observed, the gold layer length is 100 nm. The measurement resolution in terms of the OPD of ∼50 nm is achieved. In applications, the outputs of the drop port device of the modified Michelson interferometer can be arranged by the different detectors, where the polarized light outputs, the photon outputs, the electron spin outputs can be obtained by the interference fringe visibility, mobility visibility and the spin up-down splitting output energies. The modified Michelson interferometer theory and the detection schemes are given in details. © 2018 Wiley Periodicals, Inc.

  13. Charge-transfer mobility and electrical conductivity of PANI as conjugated organic semiconductors

    NASA Astrophysics Data System (ADS)

    Zhang, Yahong; Duan, Yuping; Song, Lulu; Zheng, Daoyuan; Zhang, Mingxing; Zhao, Guangjiu

    2017-09-01

    The intramolecular charge transfer properties of a phenyl-end-capped aniline tetramer (ANIH) and a chloro-substituted derivative (ANICl) as organic semiconductors were theoretically studied through the first-principles calculation based on the Marcus-Hush theory. The reorganization energies, intermolecular electronic couplings, angular resolution anisotropic mobilities, and density of states of the two crystals were evaluated. The calculated results demonstrate that both ANIH and ANICl crystals show the higher electron transfer mobilities than the hole-transfer mobilities, which means that the two crystals should prefer to function as n-type organic semiconductors. Furthermore, the angle dependence mobilities of the two crystals show remarkable anisotropic character. The maximum mobility μmax of ANIH and ANICl crystals is 1.3893 and 0.0272 cm2 V-1 s-1, which appear at the orientation angles near 176°/356° and 119°/299° of a conducting channel on the a-b reference plane. It is synthetically evaluated that the ANIH crystal possesses relatively lower reorganization energy, higher electronic coupling, and electron transfer mobility, which means that the ANIH crystal may be the more ideal candidate as a high performance n-type organic semiconductor material. The systematic theoretical studies on organic crystals should be conducive to evaluating the charge-transport properties and designing higher performance organic semiconductor materials.

  14. Charge-transfer mobility and electrical conductivity of PANI as conjugated organic semiconductors.

    PubMed

    Zhang, Yahong; Duan, Yuping; Song, Lulu; Zheng, Daoyuan; Zhang, Mingxing; Zhao, Guangjiu

    2017-09-21

    The intramolecular charge transfer properties of a phenyl-end-capped aniline tetramer (ANIH) and a chloro-substituted derivative (ANICl) as organic semiconductors were theoretically studied through the first-principles calculation based on the Marcus-Hush theory. The reorganization energies, intermolecular electronic couplings, angular resolution anisotropic mobilities, and density of states of the two crystals were evaluated. The calculated results demonstrate that both ANIH and ANICl crystals show the higher electron transfer mobilities than the hole-transfer mobilities, which means that the two crystals should prefer to function as n-type organic semiconductors. Furthermore, the angle dependence mobilities of the two crystals show remarkable anisotropic character. The maximum mobility μ max of ANIH and ANICl crystals is 1.3893 and 0.0272 cm 2 V -1 s -1 , which appear at the orientation angles near 176°/356° and 119°/299° of a conducting channel on the a-b reference plane. It is synthetically evaluated that the ANIH crystal possesses relatively lower reorganization energy, higher electronic coupling, and electron transfer mobility, which means that the ANIH crystal may be the more ideal candidate as a high performance n-type organic semiconductor material. The systematic theoretical studies on organic crystals should be conducive to evaluating the charge-transport properties and designing higher performance organic semiconductor materials.

  15. High Electron Mobility in SiGe/Si n-MODFET Structures on Sapphire Substrates

    NASA Technical Reports Server (NTRS)

    Mueller, Carl H.; Croke, Edward T.; Alterovitz, Samuel A.

    2003-01-01

    For the first time, SiGe/Si n-Modulation Doped Field Effect Transistors (n-MODFET) structures have been grown on sapphire substrates. Room temperature electron mobility value of 1271 square centimeters N-sec at an electron carrier density (n(sub e) = 1.33x10(exp 12) per square centimeter)) of 1.6 x 10(exp 12) per square centimeter was obtained. At 250 mK, the mobility increases to 13,313 square centimeters/V-sec (n(sub e)=1.33x10(exp 12) per square centimeter)) and Shubnikov-de Haas oscillations appear, showing excellent confinement of the two-dimensional electron gas.

  16. Incidental memory and navigation in panoramic virtual reality for electronic commerce.

    PubMed

    Howes, A; Miles, G E; Payne, S J; Mitchell, C D; Davies, A J

    2001-01-01

    Recently much effort has been dedicated to designing and implementing World Wide Web sites for virtual shopping and e-commerce. Despite this effort, relatively little empirical work has been done to determine the effectiveness with which different site designs sell products. We report three experiments in which participants were asked to search for products in various experimental e-commerce sites. Across the experiments participants were asked to search in either QTVR (QuickTime Virtual Reality), hypertext, or pictorially rich hypertext environments; they were then tested for their ability to recall the products seen and to recognize product locations. The experiments demonstrated that when using QTVR (Experiments 1, 2, and 3) or pictorial environments (Experiment 2), participants retained more information about products that were incidental to their goals. In two of the experiments it was shown that participants navigated more efficiently when using a QTVR environment. The costs and benefits of using 3D virtual environments for on-line shops are discussed. Actual or potential applications of this research include support for the development of e-commerce design guidelines.

  17. Two-dimensional superconducting phase in LaTiO3/SrTiO3 heterostructures induced by high-mobility carrier doping.

    PubMed

    Biscaras, J; Bergeal, N; Hurand, S; Grossetête, C; Rastogi, A; Budhani, R C; LeBoeuf, D; Proust, C; Lesueur, J

    2012-06-15

    In this Letter, we show that a superconducting two-dimensional electron gas is formed at the LaTiO3/SrTiO3 interface whose transition temperature can be modulated by a back-gate voltage. The gas consists of two types of carriers: a majority of low-mobility carriers always present, and a few high-mobility ones that can be injected by electrostatic doping. The calculation of the electron spatial distribution in the confinement potential shows that the high-mobility electrons responsible for superconductivity set at the edge of the gas whose extension can be tuned by the field effect.

  18. Charge Transport in Metal Oxides: A Theoretical Study of Hematite α-Fe2O3

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Iordanova, Nellie I.; Dupuis, Michel; Rosso, Kevin M.

    2005-04-08

    Transport of conduction electrons and holes through the lattice of ??Fe2O3 (hematite) is modeled as a valence alternation of iron cations using ab initio electronic structure calculations and electron transfer theory. Experimental studies have shown that the conductivity along the (001) basal plane is four orders of magnitude larger than the conductivity along the [001] direction. In the context of the small polaron model, a cluster approach was used to compute quantities controlling the mobility of localized electrons and holes, i.e. the reorganization energy and the electronic coupling matrix element that enter Marcus? theory. The calculation of the electronic couplingmore » followed the Generalized Mulliken-Hush approach using the complete active space self-consistent field (CASSCF) method. Our findings demonstrate an approximately three orders of magnitude anisotropy in both electron and hole mobility between directions perpendicular and parallel to the c-axis, in good accord with experimental data. The anisotropy arises from the slowness of both electron and hole mobility across basal oxygen planes relative to that within iron bi-layers between basal oxygen planes. Interestingly, for elementary reaction steps along either of the directions considered, there is only approximately one order of magnitude difference in mobility between electrons and holes, in contrast to accepted classical arguments. Our findings indicate that the most important quantity underlying mobility differences is the electronic coupling, albeit the reorganization energy contributes as well. The large values computed for the electronic coupling suggest that charge transport reactions in hematite are adiabatic in nature. The electronic coupling is found to depend on both the superexchange interaction through the bridging oxygen atoms and the d-shell electron spin coupling within the Fe?Fe donor-acceptor pair, while the reorganization energy is essentially independent of the electron spin coupling.« less

  19. The Impact of Technology on Users and the Workplace.

    ERIC Educational Resources Information Center

    Chan, Susy S.

    1999-01-01

    Identifies four trends in corporate information technology and applies them to the academic workplace and institutional research. Trends are (1) knowledge management, (2) enterprise resource planning, (3) data warehousing, and (4) electronic commerce. (Author/DB)

  20. Electronic Commerce--Would, Could and Should You Use Current Internet Payment Mechanisms?

    ERIC Educational Resources Information Center

    Buck, S. Peter

    1996-01-01

    Discussion of use of the Internet for online payments focuses on payment mechanisms for conducting transactions. Highlights include commercial requirements; security requirements; various proposed and currently used mechanisms; and future possibilities. (LRW)

  1. 15 CFR 995.4 - Definitions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... of the 1974 SOLAS Convention. Electronic Navigational Chart (ENC) means a database, standardized as... National Oceanic and Atmospheric Administration. NOAA ENC files comply with the IHO S-57 standard, Edition...

  2. 15 CFR 995.4 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... of the 1974 SOLAS Convention. Electronic Navigational Chart (ENC) means a database, standardized as... National Oceanic and Atmospheric Administration. NOAA ENC files comply with the IHO S-57 standard, Edition...

  3. 15 CFR 995.4 - Definitions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... of the 1974 SOLAS Convention. Electronic Navigational Chart (ENC) means a database, standardized as... National Oceanic and Atmospheric Administration. NOAA ENC files comply with the IHO S-57 standard, Edition...

  4. 15 CFR 995.4 - Definitions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE QUALITY ASSURANCE AND CERTIFICATION... of the 1974 SOLAS Convention. Electronic Navigational Chart (ENC) means a database, standardized as... National Oceanic and Atmospheric Administration. NOAA ENC files comply with the IHO S-57 standard, Edition...

  5. Consumer protection act for digital products

    NASA Astrophysics Data System (ADS)

    Hampel, Viktor E.

    1996-03-01

    This report proposes a `Consumer Protection Act for Digital Products' to support electronic commerce and to control the increasing abuse and lack of security on the national information highways. Patterned after the `Food and Drug Act of 1906 (21 USC)' and subsequent legislation, a new agency similar to that of the FDA would have the authority `to develop administrative policy with regard to the safety, effectiveness, and labeling of digital products and their communications for human use, and to review and evaluate new applications of such products.' Specifically, it is proposed that standards, originally developed by the defense industry for the labeling, enveloping, and authentication of digital products delivered to the Government, be extended to promote global electronic commerce by protecting the intellectual property rights of producers, establishing their liability for the end-use of digital products, and give consumers means for informed decision making and purchase.

  6. An Application of Artificial Intelligence to the Implementation of Electronic Commerce

    NASA Astrophysics Data System (ADS)

    Srivastava, Anoop Kumar

    In this paper, we present an application of Artificial Intelligence (AI) to the implementation of Electronic Commerce. We provide a multi autonomous agent based framework. Our agent based architecture leads to flexible design of a spectrum of multiagent system (MAS) by distributing computation and by providing a unified interface to data and programs. Autonomous agents are intelligent enough and provide autonomy, simplicity of communication, computation, and a well developed semantics. The steps of design and implementation are discussed in depth, structure of Electronic Marketplace, an ontology, the agent model, and interaction pattern between agents is given. We have developed mechanisms for coordination between agents using a language, which is called Virtual Enterprise Modeling Language (VEML). VEML is a integration of Java and Knowledge Query and Manipulation Language (KQML). VEML provides application programmers with potential to globally develop different kinds of MAS based on their requirements and applications. We have implemented a multi autonomous agent based system called VE System. We demonstrate efficacy of our system by discussing experimental results and its salient features.

  7. Consumer preference in using the services of bukalapak website with conjoint method

    NASA Astrophysics Data System (ADS)

    Batavio, A. B.; Tripiawan, W.; Amani, H.

    2017-12-01

    Internet has become a necessity for society in Indonesia, is seen with the internet impact for the development of information technology in the environment of the community, one of which is E-commerce (electronic commerce) or commonly referred to as the shopping activity is done online, e-commerce is one of the utilization of internet technology is done by the community. With e-commerce, the community may make purchases or sales in accordance with his wishes. Bukalapak one of the companies in Indonesia who stand as an e-commerce company that offers a community to be able to make purchases or sales on his website for free. Bukalapak has competitors to continue to compete in the world of e-commerce in Indonesia. This research aims to know the preferences of consumers in using the services of the site Bukalapak. This research includes the types of descriptive and exploratory research, using the technique of Non-probability sampling and purposive sampling that are specific to the community of Bandung city ever doing online shopping at Bukalapak as a criterion of the respondents in this study, with the number of samples as many as 100 respondents in Bandung. The analysis of the data used is conjoint analysis. The results of this study showed that overall the respondents made the attribute method of the payment as the main preference in using the services of the site Bukalapak, and then followed by the attribute display websites, products and features.

  8. Electronic Data Interchange (EDI): Using Electronic Commerce to Enhance Defense Logistics

    DTIC Science & Technology

    1991-01-01

    computer technology that promises to enhance the nation’s productivity by moving both private and public sector business from a paper-based world to one...based solely on elec- tronic transactions. Simply stated, EDI is the electronic exchange of formatted business transactions between one organization’s...computer and another’s. In May 1988, the Deputy Secretary of Defense issued a policy direc- tive that EDI was to become the "way of doing business " for

  9. High-mobility BaSnO 3 grown by oxide molecular beam epitaxy

    DOE PAGES

    Raghavan, Santosh; Schumann, Timo; Kim, Honggyu; ...

    2016-01-28

    High-mobility perovskite BaSnO 3 films are of significant interest as newwide bandgap semiconductors for power electronics, transparent conductors, and as high mobility channels for epitaxial integration with functional perovskites. Despite promising results for single crystals, high-mobility BaSnO 3 films have been challenging to grow. Here, we demonstrate a modified oxide molecular beam epitaxy (MBE) approach, which supplies pre-oxidized SnO x. This technique addresses issues in the MBE of ternary stannates related to volatile SnO formation and enables growth of epitaxial, stoichiometric BaSnO 3. We demonstrate room temperature electron mobilities of 150 cm 2 V -1 s -1 in films grownmore » on PrScO 3. Lastly, the results open up a wide range of opportunities for future electronic devices.« less

  10. Electron mobility enhancement in metalorganic-vapor-phase-epitaxy-grown InAlN high-electron-mobility transistors by control of surface morphology of spacer layer

    NASA Astrophysics Data System (ADS)

    Yamada, Atsushi; Ishiguro, Tetsuro; Kotani, Junji; Nakamura, Norikazu

    2018-01-01

    We demonstrated low-sheet-resistance metalorganic-vapor-phase-epitaxy-grown InAlN high-electron-mobility transistors using AlGaN spacers with excellent surface morphology. We systematically investigated the effects of AlGaN spacer growth conditions on surface morphology and electron mobility. We found that the surface morphology of InAlN barriers depends on that of AlGaN spacers. Ga desorption from AlGaN spacers was suppressed by increasing the trimethylaluminum (TMA) supply rate, resulting in the small surface roughnesses of InAlN barriers and AlGaN spacers. Moreover, we found that an increase in the NH3 supply rate also improved the surface morphologies of InAlN barriers and AlGaN spacers as long as the TMA supply rate was high enough to suppress the degradation of GaN channels. Finally, we realized a low sheet resistance of 185.5 Ω/sq with a high electron mobility of 1210 cm2 V-1 s-1 by improving the surface morphologies of AlGaN spacers and InAlN barriers.

  11. Indium antimonide quantum well structures for electronic device applications

    NASA Astrophysics Data System (ADS)

    Edirisooriya, Madhavie

    The electron effective mass is smaller in InSb than in any other III-V semiconductor. Since the electron mobility depends inversely on the effective mass, InSb-based devices are attractive for field effect transistors, magnetic field sensors, ballistic transport devices, and other applications where the performance depends on a high mobility or a long mean free path. In addition, electrons in InSb have a large g-factor and strong spin orbit coupling, which makes them well suited for certain spin transport devices. The first n-channel InSb high electron mobility transistor (HEMT) was produced in 2005 with a power-delay product superior to HEMTs with a channel made from any other III-V semiconductor. The high electron mobility in the InSb quantum-well channel increases the switching speed and lowers the required supply voltage. This dissertation focuses on several materials challenges that can further increase the appeal of InSb quantum wells for transistors and other electronic device applications. First, the electron mobility in InSb quantum wells, which is the highest for any semiconductor quantum well, can be further increased by reducing scattering by crystal defects. InSb-based heteroepitaxy is usually performed on semi-insulating GaAs (001) substrates due to the lack of a lattice matched semi-insulating substrate. The 14.6% mismatch between the lattice parameters of GaAs and InSb results in the formation of structural defects such as threading dislocations and microtwins which degrade the electrical and optical properties of InSb-based devices. Chapter 1 reviews the methods and procedures for growing InSb-based heterostructures by molecular beam epitaxy. Chapters 2 and 3 introduce techniques for minimizing the crystalline defects in InSb-based structures grown on GaAs substrates. Chapter 2 discusses a method of reducing threading dislocations by incorporating AlyIn1-ySb interlayers in an AlxIn1-xSb buffer layer and the reduction of microtwin defects by growth on GaAs substrates that are oriented 2° away from the [011] direction. Chapter 3 discusses designing InSb QW layer structures that are strain balanced. By applying these defect-reducing techniques, the electron mobility in InSb quantum wells at room temperature was significantly increased. For complementary logic technology, p-channel transistors with high mobility are equally as important as n-channel transistors. However, achieving a high hole mobility in III-V semiconductors is challenging. A controlled introduction of strain in the quantum-well material is an effective technique for enhancing the hole mobility beyond its value in bulk material. The strain reduces the hole effective mass by splitting the heavy hole and light hole valence bands. Chapter 4 discusses a successful attempt to realize p-type InSb quantum well structures. The biaxial strain applied via a relaxed metamorphic buffer resulted in a significantly higher room-temperature hole mobility and a record high low-temperature hole mobility. To demonstrate the usefulness of high mobility in a device structure, magnetoresistive devices were fabricated from remotely doped InSb QWs. Such devices have numerous practical applications such as position and speed sensors and as read heads in magnetic storage systems. In a magnetoresistive device composed of a series of shorted Hall bars, the magnetoresistance is proportional to the electron mobility squared for small magnetic fields. Hence, the high electron mobility in InSb QWs makes them highly preferable for geometrical magnetoresistors. Chapter 5 reports the fabrication and characterization of InSb quantum-well magnetoresistors. The excellent transport properties of the InSb QWs resulted in high room-temperature sensitivity to applied magnetic fields. Finally, Chapter 6 provides the conclusions obtained during this research effort, and makes suggestions for future work.

  12. Distress and Other Situational Factors that Influence Consumer Willingness to Provide Personal Information in an Online Buyer-Seller Exchange: An Equity Theory Perspective

    ERIC Educational Resources Information Center

    Barto, Thomas Peter

    2011-01-01

    Global electronic markets will profoundly impact commerce in the 21 st century. Brick-and-mortar retailers are using technology for electronic marketing purposes where the familiar layout of the physical store becomes a maze of pulldown menus, product indices, and search features creating a new unknown for consumers and concerns for information…

  13. THE DEPENDENCE OF ION AND ELECTRON MOBILITY UPON MOLECULAR STRUCTURE IN DIELECTRIC LIQUIDS (in German)

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Adamczewski, I.

    1961-09-01

    The viscosity coefficient of dielectric liquids was found to be dependent upon molecular structure and temperature. From this a general formula for ion and electron mobility was derived. This formula includes the dependence of mobility upon molecular structure and temperature, thus making it possible to give a theoretical explanation of other published experimental results. In addition, the formula can be used to calculate ion mobility for a number of other liquids at various temperatures. (auth)

  14. Room-temperature mobility above 2200 cm{sup 2}/V·s of two-dimensional electron gas in a sharp-interface AlGaN/GaN heterostructure

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Chen, Jr-Tai, E-mail: jrche@ifm.liu.se; Persson, Ingemar; Nilsson, Daniel

    A high mobility of 2250 cm{sup 2}/V·s of a two-dimensional electron gas (2DEG) in a metalorganic chemical vapor deposition-grown AlGaN/GaN heterostructure was demonstrated. The mobility enhancement was a result of better electron confinement due to a sharp AlGaN/GaN interface, as confirmed by scanning transmission electron microscopy analysis, not owing to the formation of a traditional thin AlN exclusion layer. Moreover, we found that the electron mobility in the sharp-interface heterostructures can sustain above 2000 cm{sup 2}/V·s for a wide range of 2DEG densities. Finally, it is promising that the sharp-interface AlGaN/GaN heterostructure would enable low contact resistance fabrication, less impurity-related scattering, andmore » trapping than the AlGaN/AlN/GaN heterostructure, as the high-impurity-contained AlN is removed.« less

  15. DOE Office of Scientific and Technical Information (OSTI.GOV)

    Saudari, Sangameshwar R.; Kagan, Cherie R.; Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104

    Solution-processed, ambipolar, thin-film pentacene field-effect transistors were employed to study both electron and hole transport simultaneously in a single, organic solid-state device. Electron and hole mobilities were extracted from the respective unipolar saturation regimes and show thermally activated behavior and gate voltage dependence. We fit the gate voltage dependent saturation mobility to a power law to extract the characteristic Meyer-Neldel (MN) energy, a measure of the width of the exponential distribution of localized states extending into the energy gap of the organic semiconductor. The MN energy is ∼78 and ∼28 meV for electrons and holes, respectively, which reflects a greater densitymore » of localized tail states for electrons than holes. This is consistent with the lower measured electron than hole mobility. For holes, the well-behaved linear regime allows for four-point probe measurement of the contact resistance independent mobility and separate characterization of the width of the localized density of states, yielding a consistent MN energy of 28 meV.« less

  16. Anisotropic carrier mobility in single- and bi-layer C3N sheets

    NASA Astrophysics Data System (ADS)

    Wang, Xueyan; Li, Qingfang; Wang, Haifeng; Gao, Yan; Hou, Juan; Shao, Jianxin

    2018-05-01

    Based on the density functional theory combined with the Boltzmann transport equation with relaxation time approximation, we investigate the electronic structure and predict the carrier mobility of single- and bi-layer newly fabricated 2D carbon nitrides C3N. Although C3N sheets possess graphene-like planar hexagonal structure, the calculated carrier mobility is remarkably anisotropic, which is found mainly induced by the anisotropic effective masses and deformation potential constants. Importantly, we find that both the electron and hole mobilities are considerable high, for example, the hole mobility along the armchair direction of single-layer C3N sheets can arrive as high as 1.08 ×104 cm2 V-1 s-1, greatly larger than that of C2N-h2D and many other typical 2D materials. Owing to the high and anisotropic carrier mobility and appropriate band gap, single- and bi-layer semiconducting C3N sheets may have great potential applications in high performance electronic and optoelectronic devices.

  17. Defect-mediated transport and electronic irradiation effect in individual domains of CVD-grown monolayer MoS 2

    DOE PAGES

    Durand, Corentin; Zhang, Xiaoguang; Fowlkes, Jason; ...

    2015-01-16

    We study the electrical transport properties of atomically thin individual crystalline grains of MoS 2 with four-probe scanning tunneling microscopy. The monolayer MoS 2 domains are synthesized by chemical vapor deposition on SiO 2/Si substrate. Temperature dependent measurements on conductance and mobility show that transport is dominated by an electron charge trapping and thermal release process with very low carrier density and mobility. The effects of electronic irradiation are examined by exposing the film to electron beam in the scanning electron microscope in an ultrahigh vacuum environment. The irradiation process is found to significantly affect the mobility and the carriermore » density of the material, with the conductance showing a peculiar time-dependent relaxation behavior. It is suggested that the presence of defects in active MoS 2 layer and dielectric layer create charge trapping sites, and a multiple trapping and thermal release process dictates the transport and mobility characteristics. The electron beam irradiation promotes the formation of defects and impact the electrical properties of MoS 2. Finally, our study reveals the important roles of defects and the electron beam irradiation effects in the electronic properties of atomic layers of MoS 2.« less

  18. 77 FR 11156 - Notice of Receipt of Complaint; Solicitation of Comments Relating to the Public Interest

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-24

    ... Certain Consumer Electronics, Including Mobile Phones and Tablets, DN 2878; the Commission is soliciting... importation of certain consumer electronics, including mobile phones and tablets. The complaint names as...

  19. High-Efficiency Nonfullerene Polymer Solar Cell Enabling by Integration of Film-Morphology Optimization, Donor Selection, and Interfacial Engineering.

    PubMed

    Zhang, Xin; Li, Weiping; Yao, Jiannian; Zhan, Chuanlang

    2016-06-22

    Carrier mobility is a vital factor determining the electrical performance of organic solar cells. In this paper we report that a high-efficiency nonfullerene organic solar cell (NF-OSC) with a power conversion efficiency of 6.94 ± 0.27% was obtained by optimizing the hole and electron transportations via following judicious selection of polymer donor and engineering of film-morphology and cathode interlayers: (1) a combination of solvent annealing and solvent vapor annealing optimizes the film morphology and hence both hole and electron mobilities, leading to a trade-off of fill factor and short-circuit current density (Jsc); (2) the judicious selection of polymer donor affords a higher hole and electron mobility, giving a higher Jsc; and (3) engineering the cathode interlayer affords a higher electron mobility, which leads to a significant increase in electrical current generation and ultimately the power conversion efficiency (PCE).

  20. 48 CFR 52.214-7 - Late submissions, modifications, and withdrawals of bids.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... transmitted through an electronic commerce method authorized by the IFB, it was received at the initial point... Government processes resume. (e) Bids may be withdrawn by written notice received at any time before the...

  1. Temperature dependence of ballistic mobility in a metamorphic InGaAs/InAlAs high electron mobility transistor

    DOE Office of Scientific and Technical Information (OSTI.GOV)

    Lee, Jongkyong; Gang, Suhyun; Jo, Yongcheol

    We have investigated the temperature dependence of ballistic mobility in a 100 nm-long InGaAs/InAlAs metamorphic high-electron-mobility transistor designed for millimeter-wavelength RF applications. To extract the temperature dependence of quasi-ballistic mobility, our experiment involves measurements of the effective mobility in the low-bias linear region of the transistor and of the collision-dominated Hall mobility using a gated Hall bar of the same epitaxial structure. The data measured from the experiment are consistent with that of modeled ballistic mobility based on ballistic transport theory. These results advance the understanding of ballistic transport in various transistors with a nano-scale channel length that is comparable tomore » the carrier's mean free path in the channel.« less

  2. Quantum confinement effects on electronic photomobilities at nanostructured semiconductor surfaces: Si(111) without and with adsorbed Ag clusters

    NASA Astrophysics Data System (ADS)

    Hembree, Robert H.; Vazhappilly, Tijo; Micha, David A.

    2017-12-01

    The conductivity of holes and electrons photoexcited in Si slabs is affected by the slab thickness and by adsorbates. The mobilities of those charged carriers depend on how many layers compose the slab, and this has important scientific and technical consequences for the understanding of photovoltaic materials. A previously developed general computational procedure combining density matrix and electronic band structure treatments has been applied to extensive calculations of mobilities of photoexcited electrons and holes at Si(111) nanostructured surfaces with varying slab thickness and for varying photon energies, to investigate the expected change in mobility magnitudes as the slab thickness is increased. Results have been obtained with and without adsorbed silver clusters for comparison of their optical and photovoltaic properties. Band states were generated using a modified ab initio density functional treatment with the PBE exchange and correlation density functionals and with periodic boundary conditions for large atomic supercells. An energy gap correction was applied to the unoccupied orbital energies of each band structure by running more accurate HSE hybrid functional calculations for a Si(111) slab. Photoexcited state populations for slabs with 6, 8, 10, and 12 layers were generated using a steady state reduced density matrix including dissipative effects due to energy exchange with excitons and phonons in the medium. Mobilities have been calculated from the derivatives of voltage-driven electronic energies with respect to electronic momentum, for each energy band and for the average over bands. Results show two clear trends: (a) adding Ag increases the hole photomobilities and (b) decreasing the slab thickness increases hole photomobilities. The increased hole populations in 6- and 8-layer systems and the large increase in hole mobility for these thinner slabs can be interpreted as a quantum confinement effect of hole orbitals. As the slab thickness increases to ten and twelve layers, the effect of silver adsorbates decreases leading to smaller relative enhancements to the conduction electron and hole mobilities, but the addition of the silver nanoclusters still increases the absorbance of light and the mobility of holes compared to their mobilities in the pure Si slabs.

  3. What Do Context Aware Electronic Alerts from Virtual Learning Environments Tell Us about User Time & Location?

    ERIC Educational Resources Information Center

    Crane, Laura; Benachour, Phillip

    2013-01-01

    The paper describes the analysis of user location and time stamp information automatically logged when students receive and interact with electronic updates from the University's virtual learning environment. The electronic updates are sent to students' mobile devices using RSS feeds. The mobile reception of such information can be received in…

  4. Server-Based and Server-Less Byod Solutions to Support Electronic Learning

    DTIC Science & Technology

    2016-06-01

    Knowledge Online NSD National Security Directive OS operating system OWA Outlook Web Access PC personal computer PED personal electronic device PDA...mobile devices, institute mobile device policies and standards, and promote the development and use of DOD mobile and web -enabled applications” (DOD...with an isolated BYOD web server, properly educated system administrators must carry out and execute the necessary, pre-defined network security

  5. Low Temperature Photoluminescence (PL) from High Electron Mobility Transistors (HEMTs)

    DTIC Science & Technology

    2015-03-01

    Photoluminescence Form InxAl1-xN Films Deposited by Plasma-Assisted Molecular Beam Epitaxy ,” Submitted to Applied Physics Letters, July 2014. 8 LIST OF...TECHNICAL REPORT RDMR-WD-14-55 LOW TEMPERATURE PHOTOLUMINESCENCE (PL) FROM HIGH ELECTRON MOBILITY TRANSISTORS ( HEMTS ...Mobility Transistors ( HEMTs ) 5. FUNDING NUMBERS 6. AUTHOR(S) Adam T. Roberts and Henry O. Everitt 7. PERFORMING ORGANIZATION NAME(S

  6. Mobile health platform for pressure ulcer monitoring with electronic health record integration.

    PubMed

    Rodrigues, Joel J P C; Pedro, Luís M C C; Vardasca, Tomé; de la Torre-Díez, Isabel; Martins, Henrique M G

    2013-12-01

    Pressure ulcers frequently occur in patients with limited mobility, for example, people with advanced age and patients wearing casts or prostheses. Mobile information communication technologies can help implement ulcer care protocols and the monitoring of patients with high risk, thus preventing or improving these conditions. This article presents a mobile pressure ulcer monitoring platform (mULCER), which helps control a patient's ulcer status during all stages of treatment. Beside its stand-alone version, it can be integrated with electronic health record systems as mULCER synchronizes ulcer data with any electronic health record system using HL7 standards. It serves as a tool to integrate nursing care among hospital departments and institutions. mULCER was experimented with in different mobile devices such as LG Optimus One P500, Samsung Galaxy Tab, HTC Magic, Samsung Galaxy S, and Samsung Galaxy i5700, taking into account the user's experience of different screen sizes and processing characteristics.

  7. Electrical transport, electrothermal transport, and effective electron mass in single-crystalline In2O3 films

    NASA Astrophysics Data System (ADS)

    Preissler, Natalie; Bierwagen, Oliver; Ramu, Ashok T.; Speck, James S.

    2013-08-01

    A comprehensive study of the room-temperature electrical and electrothermal transport of single-crystalline indium oxide (In2O3) and indium tin oxide (ITO) films over a wide range of electron concentrations is reported. We measured the room-temperature Hall mobility μH and Seebeck coefficient S of unintentionally doped and Sn-doped high-quality, plasma-assisted molecular-beam-epitaxy-grown In2O3 for volume Hall electron concentrations nH from 7×1016 cm-3 (unintentionally doped) to 1×1021 cm-3 (highly Sn-doped, ITO). The resulting empirical S(nH) relation can be directly used in other In2O3 samples to estimate the volume electron concentration from simple Seebeck coefficient measurements. The mobility and Seebeck coefficient were modeled by a numerical solution of the Boltzmann transport equation. Ionized impurity scattering and polar optical phonon scattering were found to be the dominant scattering mechanisms. Acoustic phonon scattering was found to be negligible. Fitting the temperature-dependent mobility above room temperature of an In2O3 film with high mobility allowed us to find the effective Debye temperature (ΘD=700 K) and number of phonon modes (NOPML=1.33) that best describe the polar optical phonon scattering. The modeling also yielded the Hall scattering factor rH as a function of electron concentration, which is not negligible (rH≈1.4) at nondegenerate electron concentrations. Fitting the Hall-scattering-factor corrected concentration-dependent Seebeck coefficient S(n) for nondegenerate samples to the numerical solution of the Boltzmann transport equation and to widely used, simplified equations allowed us to extract an effective electron mass of m*=(0.30±0.03)me (with free electron mass me). The modeled mobility and Seebeck coefficient based on polar optical phonon and ionized impurity scattering describes the experimental results very accurately up to electron concentrations of 1019 cm-3, and qualitatively explains a mobility plateau or local maximum around 1020 cm-3. Ionized impurity scattering with doubly charged donors best describes the mobility in our unintentionally doped films, consistent with oxygen vacancies as unintentional shallow donors, whereas singly charged donors best describe our Sn-doped films. Our modeling yields a (phonon-limited) maximum theoretical drift mobility and Hall mobility of μ=190 cm2/Vs and μH=270 cm2/Vs, respectively. Simplified equations for the Seebeck coefficient describe the measured values in the nondegenerate regime using a Seebeck scattering parameter of r=-0.55 (which is consistent with the determined Debye temperature), and provide an estimate of the Seebeck coefficient to lower electron concentrations. The simplified equations fail to describe the Seebeck coefficient around the Mott transition (nMott=5.5×1018 cm-3) from nondegenerate to degenerate electron concentrations, whereas the numerical modeling accurately describes this region.

  8. A Study on Architecture of Malicious Code Blocking Scheme with White List in Smartphone Environment

    NASA Astrophysics Data System (ADS)

    Lee, Kijeong; Tolentino, Randy S.; Park, Gil-Cheol; Kim, Yong-Tae

    Recently, the interest and demands for mobile communications are growing so fast because of the increasing prevalence of smartphones around the world. In addition, the existing feature phones were replaced by smartphones and it has widely improved while using the explosive growth of Internet users using smartphones, e-commerce enabled Internet banking transactions and the importance of protecting personal information. Therefore, the development of smartphones antivirus products was developed and launched in order to prevent malicious code or virus infection. In this paper, we proposed a new scheme to protect the smartphone from malicious codes and malicious applications that are element of security threats in mobile environment and to prevent information leakage from malicious code infection. The proposed scheme is based on the white list smartphone application which only allows installing authorized applications and to prevent the installation of malicious and untrusted mobile applications which can possibly infect the applications and programs of smartphones.

  9. A Pervasive Social Networking Application: I-NFC enabled Florist Smart Advisor

    NASA Astrophysics Data System (ADS)

    Swee Wen, Khoo; Mahinderjit Singh, Manmeet

    2016-11-01

    Location based service is an information and entertainment service, accessible with mobile devices through the mobile network and utilizing the ability to make use of the geographical position of the mobile device. NFC location based service is using one of the modes of NFC such as peer-to-peer, reader/writer, and card emulation to obtain the information of the object and then get the location of the object. In this paper, the proposed solution is I- NFC-enabled Pervasive Social Networking apps for florists. It combines the NFC location based service with Online Social Network (OSN). In addition, a smart advisor in the system to provide output in making their own decision while purchasing products.The development of the system demonstrates that a designed commerce site is provided which enable a communication between NFC-enabled smartphone, NFC-enabled application and OSN. GPS functionalities also implemented to provide map and location of business services. Smart advisor also designed to provide information for users who do not have ideas what to purchase.

  10. Marketing Violent Entertainment to Children: A One-Year Follow-Up Review of Industry Practices in the Motion Picture, Music Recording and Electronic Game Industries. A Report to Congress.

    ERIC Educational Resources Information Center

    Federal Trade Commission, Washington, DC.

    In a report issued in September 2000, the Federal Trade Commission reported that the motion picture, music recording, and electronic game segments of the entertainment industry intentionally promoted products to children that warranted parent cautions. This report responds to the request of the Senate Commerce Committee by focusing on advertising…

  11. Sentiment topic mining based on comment tags

    NASA Astrophysics Data System (ADS)

    Zhang, Daohai; Liu, Xue; Li, Juan; Fan, Mingyue

    2018-03-01

    With the development of e-commerce, various comments based on tags are generated, how to extract valuable information from these comment tags has become an important content of business management decisions. This study takes HUAWEI mobile phone tags as an example using the sentiment analysis and topic LDA mining method. The first step is data preprocessing and classification of comment tag topic mining. And then make the sentiment classification for comment tags. Finally, mine the comments again and analyze the emotional theme distribution under different sentiment classification. The results show that HUAWEI mobile phone has a good user experience in terms of fluency, cost performance, appearance, etc. Meanwhile, it should pay more attention to independent research and development, product design and development. In addition, battery and speed performance should be enhanced.

  12. 77 FR 31815 - Hazardous Materials Regulations: Combustible Liquids

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-30

    ... are: Safety (hazard communication and packaging integrity); International commerce (frustration/delay... exempt seasonal workers from the Federal Motor Carrier Safety Administration's Commercial Driver's...: Anyone is able to search the electronic form of any written communications and comments received into any...

  13. 50 CFR 680.21 - Crab harvesting cooperatives.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) SHELLFISH FISHERIES OF THE EXCLUSIVE ECONOMIC... transfer of crab harvesting cooperative individual fishing quota (IFQ) provided that a paper or electronic... information is true, correct, and complete. The transferor's designated representative must submit the paper...

  14. 19 CFR 122.43 - General declaration.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., unless the information is given in some other manner under subpart E of this part. ... Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY AIR COMMERCE REGULATIONS Aircraft Entry and Entry Documents; Electronic Manifest Requirements for...

  15. 18 CFR 341.2 - Filing requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., DEPARTMENT OF ENERGY REGULATIONS UNDER THE INTERSTATE COMMERCE ACT OIL PIPELINE TARIFFS: OIL PIPELINE... filings. (1) Carriers must serve tariff publications and justifications to each shipper and subscriber... for its inability to accept electronic service. (b) Notice period. All tariff publications (except for...

  16. Digital Signature Management.

    ERIC Educational Resources Information Center

    Hassler, Vesna; Biely, Helmut

    1999-01-01

    Describes the Digital Signature Project that was developed in Austria to establish an infrastructure for applying smart card-based digital signatures in banking and electronic-commerce applications. Discusses the need to conform to international standards, an international certification infrastructure, and security features for a public directory…

  17. 48 CFR 2804.506 - Exemptions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Exemptions. 2804.506 Section 2804.506 Federal Acquisition Regulations System DEPARTMENT OF JUSTICE General ADMINISTRATIVE MATTERS Electronic Commerce in Contracting 2804.506 Exemptions. Pursuant to FAR 4.506(b), all...

  18. Direct measurement of cyclotron coherence times of high-mobility two-dimensional electron gases.

    PubMed

    Wang, X; Hilton, D J; Reno, J L; Mittleman, D M; Kono, J

    2010-06-07

    We have observed long-lived (approximately 30 ps) coherent oscillations of charge carriers due to cyclotron resonance (CR) in high-mobility two-dimensional electrons in GaAs in perpendicular magnetic fields using time-domain terahertz spectroscopy. The observed coherent oscillations were fitted well by sinusoids with exponentially-decaying amplitudes, through which we were able to provide direct and precise measures for the decay times and oscillation frequencies simultaneously. This method thus overcomes the CR saturation effect, which is known to prevent determination of true CR linewidths in high-mobility electron systems using Fourier-transform infrared spectroscopy.

  19. Digital Watermarks Enabling E-Commerce Strategies: Conditional and User Specific Access to Services and Resources

    NASA Astrophysics Data System (ADS)

    Dittmann, Jana; Steinebach, Martin; Wohlmacher, Petra; Ackermann, Ralf

    2002-12-01

    Digital watermarking is well known as enabling technology to prove ownership on copyrighted material, detect originators of illegally made copies, monitor the usage of the copyrighted multimedia data and analyze the spread spectrum of the data over networks and servers. Research has shown that data hiding techniques can be applied successfully to other application areas like manipulations recognition. In this paper, we show our innovative approach for integrating watermark and cryptography based methods within a framework of new application scenarios spanning a wide range from dedicated and user specific services, "Try&Buy" mechanisms to general means for long-term customer relationships. The tremendous recent efforts to develop and deploy ubiquitous mobile communication possibilities are changing the demands but also possibilities for establishing new business and commerce relationships. Especially we motivate annotation watermarks and aspects of M-Commerce to show important scenarios for access control. Based on a description of the challenges of the application domain and our latest work we discuss, which methods can be used for establishing services in a fast convenient and secure way for conditional access services based on digital watermarking combined with cryptographic techniques. We introduce an example scenario for digital audio and an overview of steps in order to establish these concepts practically.

  20. Two-dimensional superconductivity induced by high-mobility carrier doping in LaTiO3/SrTiO3 hetero-structures

    NASA Astrophysics Data System (ADS)

    Biscaras, Johan; Hurand, S.; Palma, C.; Lesueur, J.; Bergeal, N.; Leboeuf, D.; Proust, C.; Rastogi, A.; Budhani, R. C.

    2013-03-01

    Transition metal oxides display a great variety of quantum electronic behaviors where correlations often play an important role. The achievement of high quality epitaxial interfaces involving such materials gives a unique opportunity to engineer artificial materials where new electronic orders take place. It has been shown recently that a two-dimensional electron gas 2DEG could form at the interface of two insulators such as LaAlO3 and SrTiO3, or LaTiO3 (a Mott insulator) and SrTiO3. We show that a superconducting two-dimensional electron gas is formed at the LaTiO3/SrTiO3 interface whose properties can be modulated by field effect using a metallic gate on the back of the substrate. The gas consists of two types of carriers : a majority of low-mobility carriers always present, and a few high-mobility ones that can be injected by electrostatic doping. The calculation of the electrons spatial distribution in the confinement potential shows that the high-mobility electrons responsible for superconductivity set at the edge of the gas whose extension can be tuned by field effect.

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