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Reconfigurable Pattern Patch Antenna for Mid-Band 5G:A Review

Computers, Materials & Continua 2022年第2期70卷 2699-2725页

作者： Siti Rahena Isa Muzammil Jusoh Thennarasan Sabapathy Jamel Nebhen Muhammad Ramlee Kamarudin Mohamed Nasrun Osman Qammer Hussain Abbasi Hasliza A.rahim Mohd Najib Mohd Yasin Ping Jack Soh Department of Electrical Engineering Politeknik Sultan Abdul Halim Mu’adzam ShahJitra06000Malaysia Advanced Communication Engineering(ACE) Centre of ExcellenceUniversiti Malaysia Perlis.Faculty of Electronic Engineering TechnologyUniversiti Malaysia PerlisPauh Putra02600Malaysia College of Computer Engineering and Sciences Prince Sattam Bin Abdulaziz UniversityP.O.Box 151Alkharj11942Saudi Arabia Faculty of Electrical and Electronic Engineering Universiti Tun Hussein Onn MalaysiaParit Raja86400Malaysia School of Engineering University of GlasgowGlasgowG128QQU.K

New requirements in communication technologies make it imperative to rehash conventional features such as reconfigurable antennas to adapt with the future adaptability *** paper presents a comprehensive review of reconfigurable antennas,specifically in terms of radiation patterns for adaptation in the upcoming Fifth Generation(5G)New Radio frequency *** represent the key of antenna technology for materializing a high rate transmission,increased spectral and energy efficiency,reduced interference,and improved the beam steering and beam shaping,thereby land a great promise for planar antennas to boost the mid-band *** review begins with an overview of the underlying principals in reconfiguring radiation patterns,followed by the presentations of the implemented innovative antenna topologies to suit particular advanced *** various adaptation techniques of radiation pattern reconfigurable planar antennas and the understanding of its antenna design approaches has been investigated for its radiation pattern enhancement.A variety of design configurations have also been critically studied for their compatibilities to be operated in the midband communication *** review provides new insights on pattern reconfigurable antenna where such antennas are categorized as beam steering antenna and beamshaping antennas where the operation modes and purposes are clearly *** review also revealed that for mid-band 5G communication,the commonly used electronic switching such as PIN diodes have sufficient isolation loss to provide the required beam performance.

关键词： 5G mid-band pattern antenna reconfigurable antenna phased array antenna antenna and propagation

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Flood Risk Map Based on GIS, and Multi Criteria Techniques (Case Study Terengganu Malaysia)

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Journal of Geographic Information System 2015年第4期7卷 348-357页

作者： Ranya Fadlalla Abdalla Elsheikh Sarra Ouerghi Abdel rahim Elhag GIS Department School of Survey Sudan University of Science and Technology Khartoum Sudan Department of Geographic and GIS Faculty of Arts & Humanities King Abdul Aziz University Jeddah Saudi Arabia Laboratoire 3E “Eau-Energie-Environnement” (L.R.AD-10-02) Ecole Nationale d’ Ingénieurs de Sfax Sfax Tunisie

The heavy floods in the Terengganu have showed an increasing trend in recent years. Terrain?characteristics of land and meteorological properties of the region are main natural factors for?this?disaster. In this paper, Terengganu was selected as the case study for flood risk analysis. Geographical Information System (GIS) is integrated with Multicriteria Decision Analysis (MCDA) to evaluate the potential flood risk areas. Some of the causative factors for flooding in watershed are taken into account as annual rainfall, basin slope, drainage network and the type of soil. The spatial multi-criteria analysis was used to rank and display potential locations, while the analytical hierarchy process method was used to compute the priority weights of each criterion. Using AHP, the percentages derived from the factors were Rainfall 38.7%, Drainage network 27.5%, Slope of the river basin 19.8% and Soil type 14%. At the end of the study, a map of flood risk areas was?generated and validated with a view to assisting decision makers on the menace posed by the disaster.

关键词： Geographic Information System Multi Criteria Decision Making Analytical Hierarchy Process Pairwise Comparison Flood

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江西省萍乡市某羊场布鲁菌病的流行病学分析

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畜牧与饲料科学 2018年第11期39卷 110-112页

作者：伍钢郑文亚肖亮 abdul-rahim BAKAR MATAKA ASMA KOMBO HAJI 彭侃霖刘犇宜春学院生命科学与资源环境学院江西宜春336000 宜春市袁州区畜牧水产局江西宜春336000

江西省萍乡市某山羊场妊娠母羊散发流产,为了分析该羊场流产的发生是否与布鲁菌感染有关,同时掌握该羊场布鲁菌病的流行情况,随机抽样采血共分离得到100份山羊血清,首先使用虎红平板凝集试验进行初步鉴定,然后通过试管凝集试验重新检测... 详细信息

江西省萍乡市某山羊场妊娠母羊散发流产,为了分析该羊场流产的发生是否与布鲁菌感染有关,同时掌握该羊场布鲁菌病的流行情况,随机抽样采血共分离得到100份山羊血清,首先使用虎红平板凝集试验进行初步鉴定,然后通过试管凝集试验重新检测阳性血清。结果表明,该羊场布鲁菌病阳性率为20%。由此可以得出,该羊场的布鲁菌病防控工作存在较严重的问题,应制定有效的防治措施,将山羊布鲁菌病的检测纳入日常疾病监测工作中,最终达到净化该病的目的。

关键词：山羊布鲁菌病虎红平板凝集试验试管凝集试验

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Effect of Microwave Power and Clamping Pressure on the Microwave Welding of Polypropylene Using Silicon Carbide Nanowhiskers as Microwave Susceptor

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Chinese Journal of Polymer Science 2022年第11期40卷 1466-1481页

作者： Phey Yee Foong Chun Hong Voon Bee Ying Lim Pei Leng Teh Mohd Afendi Bin Rojan Nor Azizah Parmin Subash C.B.Gopinath Mohd Khairuddin Md Arshad Foo Wah Low Savisha Mahalingam Abreeza Manap Ruslinda A.rahim Uda Hashim Institute of Nano Electronic Engineering Universiti Malaysia PerlisSeriabKangarPerlis01000Malaysia Faculty of Chemical Engineering Technology Universiti Malaysia PerlisJejawiPerlis Arau02600Malaysia Faculty of Mechanical Engineering Technology Universiti Malaysia PerlisPauhPerlis Arau02600Malaysia Department of Electrical&Electronic Engineering Lee Kong Chian Faculty of Engineering&ScienceUniversiti Tunku Abdul RahmanBandar Sungai LongKajangSelangor43000Malaysia Institute of Sustainable Energy Universiti Tenaga NasionalJalan IKRAM-UNITENKajangSelangor43000Malaysia

Due to their excellent dielectric properties and the rapid response to microwave irradiation,silicon carbide nanowhiskers(SiCNWs)were employed as microwave susceptor in this study to absorb microwave and locally melt the surrounding polypropylene(PP)substrates for the joining of PP *** welded joint is formed after the melted PP was cooled and *** than microwave susceptor,SiCNWs also acted as the nanofillers in strengthening the welded joint through the formation of SiCNWs reinforced PP nanocomposite at the interface of PP ***,the effect of microwave power on the microwave welding of PP substrates using SiCNWs as susceptor was studied and *** was found that the tensile strength and modulus of elasticity of the welded joint improved as microwave power ***,it deteriorates the flexibility of the welded joint as high stiffness SiCNWs were incorporated deeper into the PP matrix which restricted the PP chain *** from microwave power,clamping pressure is also critical in determining the mechanical properties of a welded *** compared to unclamped welded joint,the tensile strength,modulus of elasticity and flexibility of welded joint subjected to clamping pressure improved ***,the tensile strength of welded joint increased when the clamping pressure was increased from P1 to P3,but decreased when the clamping pressure was further increased to P4 due to the occurrence of flashing at welded *** formation mechanism of SiCNWs reinforced PP welded joint was also proposed in this *** to conventional welding,this welding process is easy,straightforward and is able to produce welded joint with outstanding mechanical properties via precise controlling of the processing ***,microwave welding is thought to offer an option for the joining of thermoplastics and other applications.

关键词： Microwave welding Silicon carbide Nanowhiskers Joining Susceptor

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Tungsten Carbide Synthesis by Microwave-Induced Alloying Using Phosphoric Acid Activated Palm Kernel Shell Carbon

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材料科学与工程（中英文版） 2010年第12期4卷 68-73页

作者： Siti Zubaidah Hanapi Noor Idayu Masrom abdul rahim Yacob Chemistry Department Faculty of Science Universiti Teknologi Malaysia Skudai 81310 Johor Malaysia

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First report on molecular characterization of Leishmania species from cutaneous leishmaniasis patients in southern Khyber Pakhtunkhwa province of Pakistan

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Asian Pacific Journal of Tropical Medicine 2017年第7期10卷 785-788页

作者： Mubbashir Hussain Shahzad Munir Sultan Ayaz Bahar Ullah Khattak Taj Ali Khan Niaz Muhammad Muhammad Anees Hazir Rahman Muhammad Qasim Muhammad Ameen Jamal Irfan Ahmed Kashif rahim Humaira Mazhar Noha Watanay Mohamed Kasbari Vector Borne Diseases Laboratory Department of MicrobiologyKohat University of Science and Technology Kohat Department of Plant Pathology Faculty of Plant ProtectionYunnan Agricultural University College of Animal Husbandry and Veterinary Sciences Abdul Wali Khan University Mardan College of Animal Science and Technology Yunnan Agricultural University Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Yunnan Agricultural University Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology Institute of Biochemistry and BiotechnologyCollege of Life SciencesBeijing Normal University US Naval Medical Research Unit-3 (NAMRU 3) ANSES Animal Health Laboratory

Objective: To report presence of Leishmania major in Khyber Pakhtunkhwa of Pakistan, where cutaneous leishmaniasis(CL) is endemic and was thought to be caused by Leishmania tropica only. Methods: Biopsy samples from 432 CL suspected patients were collected from 3 southern districts of Khyber Pakhtunkhwa during years 2011–2016. Microscopy on Giemsa stained slides were done followed by amplification of the ribosomal internal transcribed spacer 1 gene. Results: Leishmania amastigotes were detected by microscopy in 308 of 432 samples(71.3%) while 374 out of 432 samples(86.6%) were positive by ribosomal internal transcribed spacer 1 PCR. Subsequent restriction fragment length polymorphism confirmed Leishmania tropica in 351 and Leishmania major in 6 biopsy samples. Conclusions: This study is the first molecular characterization of Leishmania species in southern Khyber Pakhtunkhwa. It confirmed the previous assumptions that anthroponotic CL is the major CL form present in Khyber Pakhtunkhwa province. Furthermore, this is the first report of Leishmania major from a classical anthroponotic CL endemic focus identified in rural areas of Kohat district in southern Khyber Pakhtunkhwa.

关键词： Cutaneous leishmaniasis ITS-PCR RFLP Leishmania tropica Khyber Pakhtunkhwa

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Elemental and Physical Effect of Carbon from Date＇s Frond after Activation by Phosphoric Acid

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材料科学与工程（中英文版） 2011年第1期5卷 20-25页

作者： Norasyikin Mohd Mustapha abdul rahim Yacob Hassan M. Al Swaidan Chemistry Department Faculty of Science Universiti Teknologi Malaysia Skudai 81310 Joho Malaysia Chemistry Department College of Scienee King Saud University Riyadh 11451 Saudi Arabia

Date frond, a low-cost agricultural by-product abundant in Saudi Arabia was used as a precursor for the production of porous carbons by chemical activation using phosphoric acid. The developed surface morphology was studied using thermogravimetry analysis (TGA), Fourier transform infrared spectroscopy (FTIR) and single point BET surface area. The result obtained from TGA indicates major weight loss is during heating before 400 °C. In this study, thus this temperature was chosen to carbonize the date frond after the chemical activation using phosphoric acid (H3PO4) at various concentrations. FTIR results show that the sample is successfully converted from raw material to pure high surface area carbon. This study also shows that chemical activation at 60% H3PO4 gives the highest surface area of 1138.0 m2·g-1. Field emission scanning microscope/energy dispersive X-ray Spectroscopy (FESEM/EDAX) on the other hand shows that chemical activation will wash away some minerals during activation to create the high surface area activated carbon.

关键词：磷酸生产激活过程元素碳物理效应傅立叶变换红外光谱 BET比表面积化学活化高比表面积

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An Examination of Social Media Role in Entrepreneurial Intention among Accounting Students: A SEM Study

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Journal of Modern Accounting and Auditing 2019年第12期15卷 577-589页

作者： Essia Ries Ahmed Noor Fareen abdul rahim Tariq Tawfeeq Yousif Alabdullah Mohammed Muneerali Thottoli University of Nizwa NizwaOman Universiti Sains Malaysia PenangMalaysia University of Basrah BasrahIraq

The purpose of this paper is to examine the current role of social media on entrepreneurial intention among theaccounting students in Penang. A survey was designed and disseminated to the accounting students where 233 validresponses were collected. Through structural equation modelling, the findings indicated that entrepreneurialintention was significantly influenced by social media. The findings of this study provided useful information forthe government to engage with other stakeholders and make use of the social media advantage to shape effectivecommunication strategies to support entrepreneurial intention for accounting students.

关键词： social media entrepreneurial intention accounting students

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Open-Gate Undoped-AIGaN-GaN HEMT Structure for pH Sensing Application

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材料科学与工程（中英文版） 2010年第7期4卷 1-6页

作者： Sharifabad Maneea Eizadi Zainal Abidin Mastura Shafinaz Mustafa Farahiyah Hashim abdul Manaf Abd Rahman Shaharin Fadzli abdul Rahman abdul rahim Qindeel Rabia Omar Nurul Afzan Material Innovations and Nanoelectronics Research Group Faculty of Electrical Engineering Universiti Teknologi Malaysia Skudai 81310 Johor Malaysia Department of Physics Faculty of Science Universiti Teknologi Malaysia Skudai 81310 Johor Malaysia Telekom Research and Development TM Innovation Centre Cyberjaya 63000 Malaysia

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Power Conversion Efficiency of Schottky Diode Fabricated on AIGaAs/GaAs Heterostructure

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材料科学与工程（中英文版） 2010年第6期4卷 60-65页

作者： Parimon Norfarariyanti Mustafa Farahiyah Hashim Abdui Manaf Abd Rahman Shaharin Fadzli abdul Rahman abdul rahim Osman Mohd Nizam Abd Aziz Azlan Hashim Md. Roslan Material Innovations and Nanoelectronics Research Group Faculty of Electrical Engineering Universiti Teknologi MalaysiaSkudai 81310 Johor Malaysia Telekom Research ＆ Development TM Innovation Centre Cyberjaya 63000 Malaysia Nano-Optoelectronics Research Faculty of Physics Universiti Sains Malaysia Minden 11800 Penang Malaysia

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