Top Research Papers on Telecommunication

Efforts are continually being made to improve the insulation efficiency of appliance foam to reduce dependency on fossil fuels and to meet federally mandated product energy use requirements. These efforts have become even more important due to impending elimination of chlorofluorocarbons (CFCs) as the blowing agent for polyurethane and polyisocyanurate foams. Conversion to hydrochlorofluorocarbons (HCFCs) or hydrofluorocarbons (HFCs) generally leads to decreased insulation value of foams and therefore, decreased overall energy efficiency for the appliances. The effects of incorporating carbon ...

A series of novel pyrazolyl tetrazoles were synthesized by introducing tetrazole moiety at the fourth position of 1,3-substituted pyrazole nucleus using sodium azide in the presence of triethylammonium chloride as phase transfer catalyst.

국내 도서관에서는 1차원 및 2차원 바코드, RFID 기술의 장점을 최대한 활용하고 각 기술의 단점들을 상호보완하여 모바일 서비스를 제공할 필요가 있다. 본 연구에서는 1차원 및 2차원 바코드의 특징 및 종류를 살펴보았다. 특히 스마트폰의 보급과 무선인터넷이 확대되는 모바일 환경에서 바코드와 RFID는 오프라인의 아...

OBJECTIVES We used cartograms to visually communicate the state-specific prevalence of obesity and its association with socioeconomic variables over time to benefit and inform decisions by national health policymakers who address geographic and social inequities in health. METHODS We generated density-equalizing maps, known as cartograms (in which geographic regions are sized in proportion to some variable), that illustrate indicators of population and educational attainment. We also provide an innovative presentation of the obesity choropleth map (which presents values for areas by shading)...

Review(s) of: Company Man: The rise and fall of corporate life, by Anthony Sampson, HarperCollins, 1995.