Clustering is an effective approach for managing nodes in Wireless Sensor Network (WSN). A new method of clustering mechanism with using Binary Gravitational Search Algorithm (BGSA) in WSN, is proposed in this paper to improve the energy consumption of the sensor nodes. Reducing the energy consumption of sensors in WSNs is the objective of this paper that is through selecting the sub optimum se...

Functional near-infrared spectroscopy (fNIRS) serves as a promising tool to examine hemodynamic response alterations in a sports-scientific context. The present study aimed to investigate how brain activity within the human motor system changes its processing in dependency of different barbell load conditions while executing a barbell squat (BS). Additionally, we used different fNIRS probe conf...

This study aimed to investigate the dosimetric characteristics of an isocentrically shielded RapidArc (IS-RA) technique for treatment of locally recurrent nasopharyngeal cancer (lrNPC). In IS-RA, the isocenter was placed at the center of the pre-irradiated brainstem (BS)/spinal cord (SC) and the jaws were set to shield the BS/SC while ensuring the target coverage during the whole gantry rotatio...

Although fifth-generation (5G) wireless communication can ] support well a high data rate of transmission, issues such as base station (BS) failure and poor BS signals may cause serious interruption problems. This paper studies the user-BS selection strategy with received signal strength indication (RSSI)-based reliability in 5G networks. First, is defined on basis RSSI probability BS. The prob...

We report observations of the linear polarization of a sample of 49 nearby bright stars measured to sensitivities of between ∼1 and ∼4 ×10. The majority of stars in the sample show measurable polarization, but most polarizations are small with 75% of the stars having P < 2 ×10. Correlations of the polarization with distance and position, indicate that most of the polarization is of interstellar...

At a press conference on 29 April 2004 there were gasps of awe from the audience as we announced that four clients of ours based in that country had achieved BS 7799-2 [1] attestation in less than four months each from a standing start. 1. Management BS 7799-2:2002 is a management standard. It is a tool for executive directors (and senior managers) and requires their leadership, involvement and...

background to current knowledge, different oocyte's recovery method and various seasons have profound impact on in vitro embryo production (ivep). objectives the aim of this study was to define an efficient recovery method for oocytes harvesting from slaughterhouse material in different seasons, and their effects on ivep yield. materials and methods ovaries from slaughtered ewes in breeding sea...

Recently, reconfigurable intelligent surfaces (RIS) have attracted a lot of attention due to their capability extending cell coverage by reflecting signals toward the receiver. In this letter, we analyze downlink RIS-assisted network with one base station (BS) and user equipment (UE). Since RIS orientation horizontal distance between BS significant influence on coverage, formulate an placement ...