检索结果-南通市图书馆

Journal of Electromagnetic Analysis and Applications 2012年第5期4卷 206-211页

作者： Sudip Kumar ghosh Abhijyoti ghosh dia ghosh Sudipta Chattopadhyay Sandip Banerjee Department of ECE Siliguri Institute of Technology Siliguri Darjeeling India.

A single layer single element rectangular microstrip antenna on ridge ground plane for improved bandwidth is theoretically investigated with a view to develop a concrete physical insight in to the phenomenon. The simple single element probe fed rectangular microstrip antenna fabricated on conventional PTFE (Poly Tetra Fluride Ethelene) substrate have many advantages except its narrow bandwidth. The present study proposes the technique to control the resonant modes of a microstrip antenna for yielding better bandwidth using transverse resonance method. The present antenna is designed to fabricate on ridge ground plane which has been compared with conventional structure and around 6% - 7% improvement in bandwidth is revealed. The detailed variation of radiation pattern across its frequency band has been studied and presented in this paper. The proposed idea has been verified through a commercial software package (High Frequency Structure Simulator) for a patch operating in X band and explained quantitatively. The electric surface current distribution over the patch surface for both the conventional and proposed antenna is presented to explain the broad banding effect physically.

关键词： Broad Bandwidth Ridge Ground Plane Rectangular Microstrip Patch

Rectangular Microstrip Antenna for Symmetrical 3-D Beam Widths for an Efficient Feed of Reflector Antenna and its Quantitative Analysis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Electromagnetic Analysis and Applications 2012年第6期4卷 230-234页

作者： Jitendra Kr. Sah Sun Chatterjee Pragya Bharati dia ghosh Aditi Anand Sudipta Chattopadhyay Department of ECE Siliguri Institute of Technology P.O-Sukna Darjeeling 734009 WB India

A simple rectangular microstrip antenna on low dielectric constant substrate such as air for improved radiation beam performance is theoretically investigated. The conventional patch antenna fabricated on common substrates always produces quite broader E plane pattern compared to its H plane. In the present investigation, the same microstrip antenna is designed on air substrate with a view to develop an efficient feed for parabolic reflector antenna, which shows an excellent radiation pattern with symmetrical 3 dB beam widths at its both E and H plane. The present antenna compared to conventional structure to show its excellence in the beam performance is presented. The complete quantitative analysis to explore such radiation beam characteristics for both the structures (conventional and the present one) is also presented in this paper. An easy and handful relationship between the length of patch antenna and its fringing length for different types of substrate is established in the background of 3 dB beam widths. The proposed idea has been verified through a commercial software package for a patch operating in X band and a concrete physical insight into the phenomenon is developed.

关键词： Air Substrate Rectangular Microstrip Antenna Symmetrical Beam widths.

Rectangular Microstrip Antenna on Ridge Ground Plane to Control the Resonant Modes for Improved Bandwidth using Transverse Resonance Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rectangular Microstrip Antenna for Symmetrical 3-D Beam Widths for an Efficient Feed of Reflector Antenna and Its Quantitative Analysis

Journal of Electromagnetic Analysis and Applications（电磁分析与应用期刊） 2012年第5期

作者： Sudip Kumar ghosh Abhijyoti ghosh dia ghosh Sudipta Chattopadhyay Sandip Banerjee

来源：评论

学校读者我要写书评

暂无评论

A Study of Differential Gene Expression and Core Canonical Pathways Involved in Rhenium Ligand Treated Epithelial Mesenchymal Transition (EMT) Induced A549 Lung Cancer Cell Lines by INGENUITY Software System

Journal of Electromagnetic Analysis and Applications（电磁分析与应用期刊） 2012年第6期

作者： Jitendra Kr. Sah Sun Chatterjee Pragya Bharati dia ghosh Aditi Anand Sudipta Chattopadhyay

来源：评论

学校读者我要写书评

暂无评论

Computational Molecular Bioscience 2022年第1期12卷 12-19页

作者： Christopher Krauss Chelsey Aurelus Kayla Johnston Joseph Hedley Satyendra Banerjee Sarah Wisniewski Quentin Reaves Khadimou dia Shenell Brown Victoria Bartlet Sheritta Gavin Jazmine Cuffee Narendra Banerjee Kuldeep Rawat Santosh Mandal Zahidur Abedin Somiranjan ghosh Hirendra Banerjee Department of Natural Sciences and Department of Health and Human Studies Elizabeth City State University University of NC Elizabeth City NC USA Department of Chemistry Morgan State University Baltimore MD USA PrimBio Research Institute LLC Exton PA USA Department of Pediatrics and Child Health Howard University Medical School Washington DC USA

Rhenium compounds have shown anti-cancer properties against many different types of cancer cell lines;however, the cellular signaling mechanisms involved in the cytotoxic properties of rhenium-based compounds were never deciphered or reported. In this manuscript, we report the results of an investigation done by RNA sequencing of rhenium treated A549 lung cancer cell lines along with an untreated vehicular control, analyzed by the Ingenuity Pathway Analysis (IPA) software system to decipher the core canonical pathways involved in rhenium induced cancer cell death. A549 EMT lung cancer cell lines were treated with rhenium ligand (Tricarbonylperrhenato(bathocuproine)rhenium(I), PR7) for seven days along with vehicular control. RNA was isolated from the treated and control cells and sequenced by a commercial company (PrimBio Corporation). The RNA sequencing data was analyzed by the INGNUITY software system and the core canonical pathways involved with differential gene expression were identified. Our report is showing that there are several cellular pathways involved in inducing cell death by rhenium-based compound PR7.

关键词： Rhenium Compounds Lung Cancer Epithelial

Analysis of Various Types Engineering Stripe Knit Fabrics of Bangladeshi Knit Industry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Textile Science and Technology 2021年第4期7卷 161-171页

作者： Gazi Farhan Ishraque Toki Sumonta ghosh Rezaul Karim Khan Alave Dibakor Chatterjee Tahsina Islam Chhoa Ummor Sahadat Mrs. Fahmin Sultana Snigdha Department of Textile Engineering National Institute of Textile Engineering and Research (NITER) Dhaka Bangladesh Department of Material Precession Engineering Donghua University Shanghai China

This experiment is generally based on the three types of engineering stripe fabrics named single jersey, full feeder lycra single jersey, and single lacoste fabric. In Bangladesh, conventional practices of engineering stripe fabric hardly seen. As the textile engineer, we focused to identify the basic difference between these fabrics. We kept the repeat length constant for all three fabrics. In these circumstances, how stitch length, yarn count, gsm, fabric dia, machine settings, machine maintenance, machine rpm varies into those three mentioned fabrics. It is the main motto of these experiments to make them more favourable into the trendy fashion world.

关键词： Engineering Stripe Fingers Semi-Positive Feeder Knit Fabric Six Colours