Conventional trisectored cellular systems have not taken full advantages of antenna directivities to enhance frequency reuse efficiency. A novel Channel Alternation and Rotation (CAR) scheme is proposed to coordinate channel assignments with antenna directivities. CAR employs a multi-interval cellreuse layout. Each cell type is allocated extra channel set(s) to provide network designers the fle...

Massive fiber-to-the-home network deployment requires never ending equipment upgrades operating at higher bandwidth. We show effective signal slicing method, which can reuse low bandwidth opto-electronical components for optical communications at higher bit rates. OCIS codes: (060.2330) Fiber optics communications; (060.2360) Fiber optics links and subsystems; (060.0060) Fiber optics and optica...

Digital Devices or Electric and Electronic Equipment (EEE) are scrapped at an alarming rate instead of being salvaged, fixed, and reused. For the reuse sector to flourish, donors, receivers, and reuse centers need services and technologies to gain effectiveness, efficiency, and traceability to reach the goal of greatly extending the lifetime of devices and still ensuring their final recycling. ...

AIM to evaluate evidence concerning sources or mechanisms of infection transmission of atypical mycobacteria associated with acupuncture, and the species causing infections. METHOD research was performed in December 2011 in the databases of LILACS, MEDLINE, EMBASE, OvidSP and the Cochrane Library, without restrictions regarding publication date, study type or language. RESULTS of the 16 pub...

Reliable data on e-waste generation is important for environmentally sound management systems. This study models from existing electrical electronics imports, consumption and Nigerian households. Structured questionnaires were used to obtain information Electrical Electronic Equipment (EEE) use, reuse, disposal households in Nigeria Data placed the market (POM) obtained United Nations Universit...

Reuse is considered as a priority alternative for the management of Waste from Electrical and Electronic Equipment (WEEE). The reason that it thought reuse always has lower environmental impact. However, few studies have evaluated in detail impacts reuse, even fewer analysed cases purpose other than original one. In this study, life cycle assessment (LCA) following ISO 14040 standard, was emplo...