research and implementation of zerocopy technology in linux

... the tag. We find them useful in determining the values of the antenna gains for the reader and the tag and input power at the beginning of the RFID system design. 22 /(4 ) L in reader tag PPGG ... Korea 1. Introduction The demand on the automated supply chain and logistics has been pervasive, aiming to replace the tedious bar-code labeling, and has driven an increasing number of research ... aspects in band and polarization as well as near- field UHF tags. It is followed by the remarks on the testing methodology of tag antennas’ input impedance, gain, pattern and reading distance. Finally,...

Ngày tải lên: 21/06/2014, 19:20

... hardware Development and Implementation of RFID Technology 116 readers, is composed by four phases: powering, start of frame (SOF), commands, and processing. In the powering phase, the reader ... transmission. ã Halt/Detecting State: This is the initial state of each powered tag. In this state, tags are detecting incoming signals and capturing SOF and Command. After this state, tags ... gathering sensor data and transmitting queries. In this section, we give an overview of the Gen 2 protocol and discuss these primitives and their limitations. Development of Sensing and Computing...

Ngày tải lên: 21/06/2014, 19:20

... received in a short period of time and b) increasing the entropy of BAC keys by random numbering of passports and by filling in the optional (usually not used) field on the last page of a passport ... probability of missing reads from the perspective of field coverage and readability can be reduced by defining the appropriate interrogator triggering position in combination with the main lobe of the ... remain the main way of protecting access to personal data and digital photos. Simple ways of increasing the security of BAC, as proposed by Avoine et al. (2008), are: a) the introduction of...

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 21/06/2014, 19:20

Ngày tải lên: 07/07/2014, 21:30

Ngày tải lên: 07/07/2014, 21:51

Ngày tải lên: 10/08/2014, 11:20

... commercial and social approach, leading to a long term and strategy minimizing risks linked to uncertainly. 1.1.3 CSR in multinational companies operating in Vietnam Vietnam is a member of the ... Objectives and Sphere Research 1.3.1 Objective of research - Provide a framework about the CSR, including the definitions, and concepts related to CSR. - Inspect the awareness and implementation of ... management about the CSR. In addition, the project will present about the level of awareness and implementation of CSR in multinational companies operating in Vietnam. And, the research is also done...

Ngày tải lên: 13/03/2014, 14:20

... subset N 0 ⊆ N[ı]ofneighborsofı satisfying QoS requirement of data source and minimizing the total energy transmission by including in its set of constraints a geo-spatial constraint expressed by F ( ı, j ) ≤ ... help of colleagues of the intelligent systems and advanced telecommunication (ISAT) laboratory of the department of computer science of the University of Cape Town for proofreading and reviewing an ... expectation of routing packets on the least energy consuming paths. Using simulation, we evaluated the efficiency of both algorithms compared to single path routing and a link disjoint path routing in terms...

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 21/06/2014, 20:20

... Implementation Efficiency 0 5 10 15 20 25 30 35 40 45 50 0 10 20 30 40 50 60 Sample Event CPU Usage (%) udt sending udt receiving tcp sending tcp receiving ã CPU usage of UDT and TCP – UDT ... going Implementations Issues ã Efficiency and CPU utilization ã Loss information processing ã Memory management ã API ã Conformance Loss Processing ã On high BDP networks, the number of ... Time (us) Efficiency of TCP 1 Gb/s link, 200ms RTT, between Tokyo and Chicago 28 minutes On 10 Gb/s link, 200ms RTT, it will take 4 hours 43 minutes to recover from a single loss. TCP’s throughput...

Ngày tải lên: 15/01/2014, 15:59

... aftermath of the dot com crash that began in early 2000, an important and interesting research issue facing researchers and practitioners alike involves the productivity and financial performance of ... tangible), and the type of electronic 16 labor, and where t is the number of years in business. t is included in the model to control for the maturity of a company. Companies operating in the Internet ... business models, redesign the entire set of business processes including interaction with customers, order taking, coordination in fulfillment and delivery, and quality control. Every aspect of...

Ngày tải lên: 18/02/2014, 11:20

... understands awareness and implementation, CSR reporting of CSR in a multinational company operating in Vietnam by asking respondents' understanding and opinion. From conducting the research, it ... ad society by bringing good working environment and condition for them; protecting living environment; and raising funds for charity and donation for the development of society and community. ... the interests of managers in implementing the business objectives with the interests of the employees work for managers, customer benefits, the partners and the interests of the community in...

Ngày tải lên: 13/03/2014, 14:19

... Institute of Medicine was established in 1970 by the National Academy of Sciences to secure the services of eminent members of appropriate professions in the examination of policy matters pertaining ... Learning, Lynn Paine and colleagues examine mentoring practices for novice teachers in China, the United Kingdom, and the United States, and how novice learning is shaped by institutional and ... Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engi- neers. It is autonomous in its administration and in...

Ngày tải lên: 29/03/2014, 13:20