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Ultra-Low Power 1 Volt Small Size 2.4 GHz CMOS RF Transceiver Design for Wireless Sensor Node

Journal of Beijing Institute of Technology 2018年第4期27卷 584-591页

作者： Muhammad Yasir Faheem Shun'an Zhong abid ali minhas Muhammad Basit Azeem School of Information and Electronics Beijing Institute of TechnologyBeijing College of Computer and Information Systems Al Yamamah University Department of Mechatronics Engineering University of Engineering and Technology

Ultra-low power transceiver design is proposed for wireless sensor node used in the wireless sensor network（WSN）.Typically,each sensor node contains a transceiver so it is required that both hardware and software designs of WSN node must take care of energy consumption during all modes of operation including active/sleep modes so that the operational life of each node can be increased in order to increase the lifetime of *** current declared size of the wireless sensor node is of millimeter order,excluding the power source and crystal *** have proposed a new 2.4 GHz transceiver that has five blocks namely XO,PLL,PA,LNA and *** proposed transceiver incorporates less number of low-drop outs（LDOs）*** size of the transceiver is reduced by decreasing the area of beneficiary components up to 0.41 mm;of core area in such a way that some functions are optimally distributed among other *** proposed design is smaller in size and consumes less power,<1 mW,compared to other *** operating voltage has also been reduced to 1 *** transceiver is most efficient and will be fruitful for the wireless networks as it has been designed by considering modern requirements.

关键词： low-drop outs(LDOs) transceiver metal oxide semiconductor field effect transistor(MOSFET) wireless sensor networks(WSN)

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Ultra-Low Power Small Size 5.8 GHz RF Transceiver Design for WiMAX/4G Applications

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Journal of Beijing Institute of Technology 2019年第1期28卷 103-108页

作者： Muhammad Yasir Faheem Shuna'n Zhong abid ali minhas Muhammad Basit Azeem School of Information and Electronics Beijing Institute of Technology College of Computer and Information Systems Al Yamamah University Department of Electrical Engineering COMSATS University IslamabadLahore Campus

A state of the art ultra-low power small sized transceiver design has been *** device consists of four blocks,including a frequency synthesizer(FS),a crystal oscillator(XO),transmitter and receiver attached with an *** has been seen that wireless information technology and systems have played a vital role in the transformation of society in different aspects of *** wireless communications including WiMAX/4G have attracted researchers and ***/4G applications need a transceiver that can be used in the worst channel conditions,but with low power consumption and low input voltage at the 5.8 GHz *** proposed transceiver operates on 1.2 *** operating frequency,noise figure(NF)and receiver gain are 5.8 GHz,4.0 dB and 90 dB *** is a highly compatible transceiver with all the 4G *** details and results have revealed that the proposed transceiver is much more efficient than the previously proposed transceivers in literature.

关键词： worldwide interoperability for microwave access frequency synthesizer(FS) power amplifier low noise amplifier

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Existence of a Hartmann layer in the peristalsis of Sisko fluid

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Chinese Physics B 2014年第5期23卷 368-372页

作者： Saleem Asghar Tayyaba minhas Aamir ali Department of Mathematics COMSATS Institute of Information Technology Department of Mathematics King Abdul Aziz University CNRS UMR 7351 Laboratoire Jean Alexandre DieudonneUniversite de Nice Sophia Antipolis

Analytical solutions for the peristaltic flow of a magneto hydrodynamic （MHD） Sisko fluid in a channel, under the effects of strong and weak magnetic fields, are presented. The governing nonlinear problem, for the strong magnetic field, is solved using the matched asymptotic expansion. The solution for the weak magnetic field is obtained using a regular perturbation method. The main observation is the existence of a Hartman boundary layer for the strong magnetic field at the location of the two plates of the channel. The thickness of the Hartmann boundary layer is determined analytically. The effects of a strong magnetic field and the shear thinning parameter of the Sisko fluid on the velocity profile are presented graphically.

关键词： magneto hydrodynamic Sisko fluid asymmetric channel Peristaltic flow non-Newtonian fluid

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Isolation and Identification of Multi-Drug Resistant Strains of Non-Lactose Fermenting Bacteria from Clinical Isolates

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Open Journal of Medical Microbiology 2014年第2期4卷 115-123页

作者： minhas Akbar Muhammad Zahid Pir Asmat ali Aftab Alam Sthanadar Mudassir Shah Iram Alam Sthanadar Muhammad Kaleem Muhammad Aslam Khayyam Zahirullah Syeda Mahreen Ul Hassan Noor Jehan Muhammad Ismail Khan Department of Microbiology Shaheed Benazir Bhutto Women University Peshawar Pakistan Department of Zoology Islamia College University Peshawar Pakistan Department of Zoology Islamia College University Peshawar Pakistan Department of Zoology and Animal Sciences Post Graduate College Dargai Malakand Pakistan Department of Zoology Islamia College UniversityPeshawar Pakistan Government Degree College Dara Adam Kheil FR Kohat Pakistan Lady Reading Hospital Peshawar Pakistan

Purpose: We studied the drug resistance of different microbes from clinical isolates. The morphological characteristics of bacteria were observed through culture characteristics and by carrying out gram staining techniques while the biochemical characteristics of bacteria were carried out by biochemical test. Methods: A total of 324 samples were collected from suspected patients visiting different hospitals at district Peshawar. For morphological identification, samples of clinical isolates were analyzed by blood agar, MacConkey agar and Eosine Methylene Blue, identified by gram staining and characterized by different biochemical tests. Antibiotic Sensitivity test by Modified Kirby-Bauer Disc diffusion method was used to test the in-vitro susceptibility of the identified isolates to different antibiotics such as Ceftazidime, Ceftazidime, Ceftriaxone, Cefepime and Imipenem. Results: These resistant non-lactose fermenting gram negative bacteria were isolated from samples of pus/wound (33.30%, n = 108/324), blood (33.30%, n = 108/324), urine (23.30%, n = 75/324) and from ascetic/pleural fluids (10.20%, n = 33/324). The study revealed that the percentage of non-fermenting bacterial infection was higher in females (53%) as compared to males (47%) along with higher infection observed in the age group of 11 - 30 years. Pseudomonas aeroginosa showed high resistance against Cefepime (88.80%), followed by Cefoperazone (55.50%), Ceftazidime (48.10%), Ceftriaxone (33.30%). Imipenem was active with low resistance (7.40%). More resistance was seen in Morganella morganii against Imipenem (66.70%) followed by Cefoperazone (55.50%), Ceftriaxone (55.50%). Cefepime showed low resistance (11%). Multi-drug resistant Proteus mirabillis was highly resistance to Ceftriaxone (74.07%), followed by Cefepime (59.20%), Cefoperazone (44.40%) and low resistance for Imipenem (25.90%). Salmonella typhi demonstrated high resistance against Imipenem (74.07%), followed by Ceftriaxone (40.70%), Ceftazi

关键词： Multidrug Resistant Non-Lactose Fermenting Gram Negative Bacteria Disc Diffusion Technique

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