Báo cáo hóa học: " Quality of service provision in mobile multimedia - a survey" doc

... Schaar and Turaga [45] developed a joint application-layer adaptive packeti- zation and prioritized scheduling and MAC-layer retransmission strategy, where the application and the MAC layers jointly ... coding based on an analytical model of the overall system. It employs joint source and application-layer chan nel coding and rate adaptation a t the wireless physical layer. • Applicatio...

Ngày tải lên: 21/06/2014, 06:20

... PER: packet error rate; PBOA: Progressive Backoff Algorithm; PHY: physical layer; QoS: quality of service; SINR: signal-to- interference-and-noise-ratio. Author details 1 Institute of Communication ... resulting in an 1 1- times increase of bandwidth. In the 802.11b protocol, the same spreading gain o f 11 is applied against out -of- band interferers. However, PBOA assumes on...

Ngày tải lên: 21/06/2014, 03:20

... research cohort database, validating the quality of data capture of OIs in the research cohort database. Discussion In a large HIV observational clinic database of patients receiving ART in Uganda, ... HIV-related anaemia, septicaemia, chronic diarrhoea, intracerebral mass, and pulmonary aspergillosis). A crude p ercentage of underreporting of OIs in the clinic databas...

Ngày tải lên: 20/06/2014, 08:20

... (-2 5.9 ,-3 .2) Bodily pain -7 .2 (-1 3.5 ,-0 .9) -5 .2 (-1 2.2,1.7) -4 .9 (-1 1.3,1.5) General health -1 1.8 (-1 6.8 ,-6 .7) -7 .2 (-1 2.9 ,-1 .5) -9 .3 (-1 4.9 ,-3 .6) Vitality -2 .5 (-7 .5,2.6) -6 .0 (-1 1.7 ,-0 .4) -2 .7 ... con- ception and design, or acquisition of data, or analysis and interpretation of data. They have been i...

Ngày tải lên: 20/06/2014, 15:20

... not have radiographic asbes- tosis or emphysema (Table 5). As expected, pack-years of smoking was significantly associated with FEV1 and FEV1/FVC ratio. Similarly, the pack-years variable was significantly ... period of time. Therefore, the individual cumulative duration of work in exposed areas was used as surrogate measure of total asbestos exposure. Clinical Evaluation Using a...

Ngày tải lên: 20/06/2014, 00:20

... mem- branes. One membrane was allowed to react with a mono- clonal antibody (Anti-actin) against human actin (D) while the others were stained with the antibodies (Anti-IE1, Anti- UL44, and Anti-UL99) ... 72 hours, separated in SDS-polyacrylamide gels, and then transferred to mem- branes. One membrane was allowed to react with a mono- clonal antibody (Anti-actin) against human actin (...

Ngày tải lên: 20/06/2014, 02:20

... Sakhaee-Pour A, Ahmadian MT, Vafai A: Potential application of single- layered graphene sheet as strainsensor. Solid State Commun 2008, 147( 7- 8):33 6-3 40. 21. Sakhaee-Pour A, Ahmadian MT, Naghdabadi ... mechanical nat- ural frequencies and associated modes shape s, as well as the pass-stop band acoustic characteristics of periodic arrays of GNRs. The numerical results from th...

Ngày tải lên: 21/06/2014, 03:20

... fate and effect of nanomaterials and the preparation of guidance documents for testing and evaluation. A preliminary review on the application of OECD guidelines to manufactured nanomaterials ... 45% avoidance at 1 g/kg and of 37% avoidance at 10 g/kg, whereas a micrometer-range nanomaterial was not avoided [22]. We found that the uncoated nanomaterial NM-105 had a clear e...

Ngày tải lên: 21/06/2014, 19:20

... missing data. Internal consistency was assessed using Cronbach's alpha, with a value of 0.7 being taken as adequate for group comparisons. Test-retest reli- ability of SF-NDI was evaluated ... Fac- ulty of Linguistics and Malay Languages, University of Malaya, for their inval- uable assistance in developing the Malay translation of the SF-NDI References 1. El-Serag HB, Tall...

Ngày tải lên: 18/06/2014, 18:20

... General Practice, University of Adelaide, Adelaide, South Australia, Australia and 3 Faculty of Health Sciences, University of Adelaide, Adelaide, South Australia, Australia Email: Upali W Jayasinghe* ... Corresponding author Abstract Background: To study health-related quality of life (HRQOL) in a large sample of Australian chronically-ill patients and investigate the impa...

Ngày tải lên: 18/06/2014, 18:20