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Al_(2)O_(3)/HfO_(2) Nanolaminate Dielectric Boosting IGZO-Based Flexible Thin-Film Transistors

Nano-Micro Letters 2022年第12期14卷 79-90页

作者： Qiuwei Shi izzat Aziz Jin-Hao Ciou Jiangxin Wang Dace Gao Jiaqing Xiong Pooi See Lee School of Materials Science and Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore School of Chemistry and Materials Science Nanjing University of Information Science and TechnologyNanjing 210044People’s Republic of China

Flexible thin-film transistors(TFTs)have attracted wide interest in the development of flexible and wearable displays or ***,the conventional high processing temperatures hinder the preparation of stable and reliable dielectric materials on flexible ***,we develop a stable laminated Al_(2)O_(3)/HfO_(2) insulator by atomic layer deposition at a relatively lower temperature of 150℃.A sputtered amorphous indium-gallium-zinc oxide(IGZO)with the stoichiometry of In_(0.37)Ga_(0.20)Zn_(0.18)O_(0.25) is used as the active channel *** flexible TFTs with bottom-gate top-contacted configuration are further fabricated on a flexible polyimide substrate with the Al_(2)O_(3)/HfO_(2) *** from the unique structural and compositional configuration in the nanolaminates consisting of amorphous Al_(2)O_(3),crystallized HfO_(2),and the aluminate Al-Hf-O phase,the as-prepared TFTs present the carrier mobilities of 9.7 cm^(2) V^(−1) s^(−1),ON/OFF ratio of-1.3×10^(6),subthreshold voltage of 0.1 V,saturated current up to 0.83 mA,and subthreshold swing of 0.256 V dec^(−1),signifying a high-performance flexible TFT,which simultaneously able to withstand the bending radius of 40 *** TFTs with nanolaminate insulator possess satisfactory humidity stability and hysteresis behavior in a relative humidity of 60-70%,a temperature of 25-30℃ *** yield of IGZO-based TFTs with the nanolaminate insulator reaches 95%.

关键词： Nanolaminate dielectric Al_(2)O_(3)/HfO_(2) Thin-film transistors Flexible electronic

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Bandwidth limits of luminescent solar concentrators as detectors in free-space optical communication systems

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Light(Science & Applications) 2021年第1期10卷 29-40页

作者： Mark Portnoi Paul Anthony Haigh Thomas JM acdonald Filip Ambroz Ivan PParkin izzat darwaze. loannis Papakonstantinou Photonic Innovations Lab Department of Electronic and Electrical EngineeringUniversity College LondonLondon WC1E 7JEUK School of Engineering University of NewcastleNewcastle NE17RUUK Department of Chemistry Imperial College LondonLondon W12 OBZUK Department of Chemistry University College LondonLondon WC1H OAJUK Department of Electronic and Electrical Engineering University College LondonLondon WC1E 7JEUK

Luminescent solar concentrators(LSCs)have recently emerged as a promising receiver technology in free-space optical communications due to their inherent ability to collect light from a wide field-of-view and concentrate it into small areas,thus leading to high optical *** high-speed communication systems integrating LSCs in their detector blocks have already been demonstrated,with the majority of efforts so far being devoted to maximising the received optical power and the system's ***,LSCs may pose a severe bottleneck on the bandwidth of such communication channels due to the comparably slow timescale of the fluorescence events involved,a situation further aggravated by the inherent reabsorption in these systems,and yet,an in-depth study into such dynamic effects remains absent in the *** fill this gap,we have developed a comprehensive analytical solution that delineates the fundamental bandwidth limits of LSCs as optical detectors in arbitrary free-space optical links,and establishes their equivalence with simple RC low-pass electrical ***,we demonstrate a time-domain Monte Carlo simulation platform,an indispensable tool in the multiparameter optimisation of LSC-based receiver *** work offers vital insight into LSC system dynamic behaviour and paves the way to evaluate the technology for a wide range of applications,including visible light communications,high-speed video recording,and real-time biological imaging,to name a few.

关键词： communication integrating devoted

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A Technical Framework for Selection of Autonomous UAV Navigation Technologies and Sensors

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Computers, Materials & Continua 2021年第8期68卷 2771-2790页

作者： izzat Al-Darraji Morched Derbali Houssem Jerbi Fazal Qudus Khan Sadeeq Jan Dimitris Piromalis Georgios Tsaramirsis Department of Automated Manufacturing University of BaghdadBaghdadIraq Department of Mechanical Engineering University of KirkukIraq Department of Information Technology Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Industrial Engineering College of EngineeringUniversity of Ha’ilHail1234Saudi Arabia Department of Computer Science&IT University of Engineering&Technology PeshawarPakistan Department of Automation University of West AtticaAthensGreece Abu Dhabi Women’s College Higher Colleges of TechnologyAbu DhabiUAE

The autonomous navigation of an Unmanned Aerial Vehicle(UAV)relies heavily on the navigation *** UAV’s level of autonomy depends upon the various navigation systems,such as state measurement,mapping,and obstacle *** the correct components is a critical part of the design ***,this can be a particularly difficult task,especially for novices as there are several technologies and components available on the market,each with their own individual advantages and *** example,satellite-based navigation components should be avoided when designing indoor *** them in the design brings no added value to the final product and will simply lead to increased cost and power *** issue is the number of vendors on the market,each trying to sell their hardware solutions which often incorporate similar *** aim of this paper is to serve as a guide,proposing various methods to support the selection of fit-for-purpose technologies and components whilst avoiding system layout *** paper presents a study of the various navigation technologies and supports engineers in the selection of specific hardware solutions based on given *** selection methods are based on easy-to-follow flow charts.A comparison of the various hardware components specifications is also included as part of this work.

关键词： UAV navigation sensors selection UAV navigation autonomous navigation UAV development navigation sensors study navigation systems mapping systems obstacle-avoidance systems

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Visible light communication with efficient far-red/near-infrared polymer light-emitting diodes

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Light(Science & Applications) 2020年第1期9卷 1362-1372页

作者： Alessandro Minotto Paul A.Haigh Łukasz G.Lukasiewicz Eugenio Lunedei Daniel T.Gryko izzat darwaze. Franco Cacialli Department of Physics and Astronomy and London Centre for Nanotechnology University College LondonLondon WC1E 6BTUK School of Engineering Newcastle UniversityNewcastle-upon-Tyne NE17RUUK Communications and Information Systems University College LondonLondon WC1E 6BTUK Institute of Organic Chemistry Polish Academy of Sciences01-224 WarsawPoland ISMN-CNR Institute for the Study of Nanostructured Materials40129 BolognaItaly

Visible light communication(VLC)is a wireless technology that relies on optical intensity modulation and is potentially a game changer for internet-of-things(IoT)***,VLC is hindered by the low penetration depth of visible light in non-transparent *** solution is to extend operation into the“nearly(in)visible”near-infrared(NIR,700-1000 nm)region,thus also enabling VLC in photonic bio-applications,considering the biological tissue NIR semitransparency,while conveniently retaining vestigial red emission to help check the link operativity by simple eye ***,we report new far-red/NIR organic light-emitting diodes(OLEDs)with a 650-800 nm emission range and external quantum efficiencies among the highest reported in this spectral range(>2.7%,with maximum radiance and luminance of 3.5 mW/cm^(2) and 260 cd/m^(2),respectively).With these OLEDs,we then demonstrate a“real-time”VLC setup achieving a data rate of 2.2 Mb/s,which satisfies the requirements for IoT and biosensing *** are the highest rates ever reported for an online unequalised VLC link based on solution-processed OLEDs.

关键词： communication diodes IoT

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Takagi–Sugeno Fuzzy Modeling and Control for Effective Robotic Manipulator Motion

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Computers, Materials & Continua 2022年第4期71卷 1011-1024页

作者： izzat Al-Darraji Ayad AKakei Ayad Ghany Ismaeel Georgios Tsaramirsis Fazal Qudus Khan Princy Randhawa Muath Alrammal Sadeeq Jan Department of Automated Manufacturing University of BaghdadBaghdad10001Iraq Department of Mechanical Engineering University of KirkukKirkuk36001Iraq Department of Computer Technical Engineering Al-kitab UniversityKirkuk36001Iraq Higher Colleges of Technology Abu Dhabi Women’s CollegeAbu Dhabi41012UAE Department of Computer Science University of SwatShangla CampusAlpurai19100ShanglaPakistan Department of Mechatronics Engineering Manipal University JaipurJaipur302004India Department of Computer Science&IT University of Engineering&Technology PeshawarPeshawar25000Pakistan

Robotic manipulators are widely used in applications that require fast and precise *** devices,however,are prompt to nonlinear control issues due to the flexibility in joints and the friction in the motors within the dynamics of their rigid *** address these issues,the Linear Matrix Inequalities(LMIs)and Parallel Distributed Compensation(PDC)approaches are implemented in the Takagy–Sugeno Fuzzy Model(T-SFM).We propose the following methodology;initially,the state space equations of the nonlinear manipulator model are ***,a Takagy–Sugeno Fuzzy Model(T-SFM)technique is used for linearizing the state space equations of the nonlinear *** T-SFM controller is developed using the Parallel Distributed Compensation(PDC)*** prime concept of the designed controller is to compensate for all the fuzzy ***,the Linear Matrix Inequalities(LMIs)are applied to generate adequate cases to ensure stability and *** programming methods are applied to solve the developed LMIs *** developed for the proposed model show that the proposed controller stabilized the system with zero tracking error in less than 1.5 s.

关键词： Nonlinear robot manipulator precise fast robot motion flexible joints motor friction Takagy-Sugeno fuzzy control modeling nonlinear flexible robot system

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The Value of Saudi Arabia Industrial Firms Between the Modigliani-Miller＇s and Gordon＇s Models： An Empirical Study on Cement Companies in Saudi Arabia

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Journal of Modern Accounting and Auditing 2012年第1期8卷 87-98页

作者： Abdullah izzat Barakat Hussein Samhan Shaqra University Kingdom of Saudi Arabia Zarqa University Jordan

The most important target of the financial management is to develop the values of the foundation and develop the wealth of shareholders （wealth of the owners）, which is the primary target of the qualified and successful financial management. This target, developing the value of the foundation, depends on the total profit that could be achieved by the company and counting the profit per share, but undoubtedly, the financial management should consider the other targets such as social responsibility and exchange between risk and revenue and others. This research, with its both theoretical and practical aspects, aims at illuminating the value of some foundations in Saudi Arabia, which are already registered in the stock market, by comparing the value of each foundation using two models namely the model of Modigliani-Miller （M＆M） and the model of Gordon. In spite of the difficulties found in the usage of both models, especially Gordon＇s model, we will use both of them to explain the aspects of imperfection in each model. This research will depend on a sample of Sandi industrial companies by getting financial data of these companies over a past decade and the usage of these data, in other words, to measure the value of Saudi companies against the market.

关键词： value Modigliani-Miller's Gordon cement companies Saudi Arabia

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Laser vs microdebrider eustachian tuboplasty for the treatment of chronic adult eustachian tube dysfunction: A systematic review

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2021年第1期7卷 54-62页

作者： Jamil Waqas izzat Steve ENT Department Birmingham Heartland Hospital UK Wrightington Wigan and Leigh NHS Foundation TrustUK

Objectives:Multiple treatments are described in the literature for the treatment of chronic Eustachian tube dysfunction but high-level quality evidence seems missing to support these *** systematic review aimed to determine and compare the safety and efficacy of Laser Eustachian tuboplasty and Microdebrider Eustachian tuboplasty as a treatment for long-term Eustachian tube *** sources:A total of 12 electronic databases were searched up to April 2018 for published and unpublished literature in the English *** of included studies were ***:A systematic review was *** assessed were:primary outcomes-subjective improvement in symptoms(ETDQ-7),audiometric improvement of hearing,improvement of negative middle ear pressure noticed in tympanometry,objective improvement of tympanic membrane *** outcomes were-the ability to auto-insufflate Eustachian tube *** manoeuvre,improved quality of life,passive tubal opening,tubomanometry,swallowing test,reduction in mucosal inflammation of Eustachian tube orifice in the nose,complications from the procedure,the need for further *** are reported in a narrative synthesis as a meta-analysis was not possible due to heterogeneous ***:Three studies were *** included studies were small-scale case series(13-38 par-ticipants).Studies were conducted outside the *** and objective improvement of Eustachian tube function was reported in all *** all included studies were at high risk of bias and subject to multiple *** major complications were reported in either ***:Based on current evidence,it is not possible to recommend the clinical use of either of these two interventions *** or Microdebrider Eustachian *** of controlled studies was identified as a gap in the *** research should be directed toward designing randomised controlled *** trials

关键词： Eustachian tuboplasty Eustachian tube Treatment of Eustachian tube dysfunction

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Recovery of bird communities following the construction of a large-scale hydroelectric dam

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Ecological Processes 2021年第1期10卷 408-417页

作者： Affan Nasruddin-Roshidi Mohammad Saiful Mansor Nor Adibah Ismail Ehwan Ngadi Mohd izzat-Husna Shahril Mod Husin Farah Shafawati Mohd-Taib Rahmah Illias Shukor Md Nor Department of Biological Sciences and Biotechnology Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia43600 BangiSelangorMalaysia Kolej GENIUS Insan Universiti Sains Islam MalaysiaBandar Baru Nilai71800 NilaiNegeri SembilanMalaysia TNB Research Sdn Bhd No.1Kawasan Institusi PenyelidikanJalan Ayer Itam43000 KajangSelangorMalaysia Department of Wildlife and National Parks(PERHILITAN) Km.10Jln Cheras56100 Kuala LumpurWilayah PersekutuanMalaysia.

Background:Habitat degradation is known to have a major impact on the composition of bird communities,yet how these communities recover following such disturbance is less *** study examined bird community changes from pre-logging to recovery over the course of habitat disturbance caused by the development of the Hulu Terengganu Hydroelectric Dam Project in Peninsular Malaysia,between 2007 and *** surveys were conducted using point count observations and mist netting in the dam area from the prelogging phase until the operation ***:It was observed that while bird species significantly declined after large-scale habitat clearance between the pre-logging and construction phases,they showed positive signs of recovery from the inundation to operation *** findings indicate that the bird community is still recovering,and the permanent loss of habitat required by most of the original species has not occurred,as evidenced by *** species composition differed across phases due to varying habitat *** turnover rate and immigration rate(recolonisation and newly recorded species)were higher between the construction and operation *** was also observed that insectivorous birds were more heavily affected than others by changes to the landscape,which highlights the versatility,survivability and tolerance of certain species to extreme disturbance and habitat ***:Although the operation phase showed an incremental change in bird species richness due to recolonisation and newly recorded species,this value remains far from that of the pre-logging *** predict that bird species recovery will continue to increase for some time before reaching a plateau among the newly created islands,reservoir and catchment area of the dam.

关键词： Dam construction Extinction Habitat recovery Recolonisation Turnover

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城市交通与城市形态：城市扩张对约旦安曼公共交通系统的影响

城市交通与城市形态：城市扩张对约旦安曼公共交通系统的影响

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作者： Shrouq Tareq izzat Aqel 北京交通大学

学位级别：硕士

这项研究旨在通过使用城市形态要素进行的几次比较,通过采用描述性分析方法来收集与城市方面和公共交通有关的数据和统计数据,以了解安曼城市扩张对公共交通的影响城市扩张与公共交通之间的关系。以及使用Pearson相关系数评估人口密度... 详细信息

这项研究旨在通过使用城市形态要素进行的几次比较,通过采用描述性分析方法来收集与城市方面和公共交通有关的数据和统计数据,以了解安曼城市扩张对公共交通的影响城市扩张与公共交通之间的关系。以及使用Pearson相关系数评估人口密度与公共交通密度之间关系的定量分析方法。Arc GIS已用于绘制运输路线图。分析的安曼城市形态元素表明,安曼的空间结构与从中心核心开始扩散并开始在四个方向上发散的城市区域相符,并最终形成了随机扩展形式。比较结果发现,随机扩张（安曼中心地区的累积扩张和新地区的多核扩张）对公共交通网络的影响导致其形成放射状并集中在一组点上在旧安曼的核心地带,并沿一条线延伸至多核区域,这种线性形式无法为那些不在线上的人服务,因此不会覆盖沿主线延伸的居住区。结果还表明,人口密度最高的地区是安曼中部地区,该地区的交通网络密度也最高;北部地区的人口密度第二高,但交通网络密度排名第三,表明该地区缺乏公共交通服务。在皮尔森系数分析中,该地区的人口密度与公共交通网络的密度之间的关系显示,在99%的置信度下,正相关性约为0.99。中心地区（Zahran）和郊区地区（Naour）之间的比较表明,Zahran的公共交通网络的密度为3.6449,这在中部地区是可以接受的,并且可以很好地指示服务覆盖范围。瑙尔的交通网络密度为0.2011,远低于可接受的极限,这反映出该地区公共交通覆盖不足。在研究结束时,提出了对未来工作的建议,这些工作可改善城市增长调控以及公共交通发展调控的绩效。

关键词：城市扩张公共交通系统影响分析安曼

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Integrated Hazard Identification(IHI):A Quick Accident Analysis and Quantification Method for Practitioners

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Non-Metallic Material Science 2021年第2期3卷 26-38页

作者： Muhammad Imran Rashid Muhammad Athar izzat Iqbal Cheema Emad Benhelal Department of Chemical Polymer and Composite Materials EngineeringUniversity of Engineering and TechnologyLahore(New Campus)39021Pakistan Centre for Advanced Process Safety(CAPS) Chemical Engineering DepartmentUniversiti Tecknologi PETRONAS32610Bandar Seri IskandarPerak Darul RidzuanMalaysia Department of Chemical Engineering Khwaja Fareed University of Engineering and Information Technology(KFUEIT)Abu Dhabi RoadRahim Yar Khan64200Pakistan Discipline of Chemical Engineering The University of NewcastleCallaghan NSW 2308Australia

There are many techniques for hazard identification and are divided into shortcut,standard and advanced *** these,HAZOP and What-If techniques are mostly engaged by practitioners in the chemical process *** of these have certain advantages and limitations,i.e.,HAZOP is structured,and what-if covers broad range of *** is no hazard identification method,which can cover a broad range of scenarios and is structured in *** this purpose,a new technique namely integrated hazard identification(IHI)is proposed in this article that integrates HAZOP and *** methodology is demonstrated via hazard identification study of urea synthesis *** ranking is used to sort out the worst-case *** worst-case scenario is further studied in detail for quantification that is performed using the ALOHA *** quantification has assisted to detect ammonia concentrations in nearby control room and surroundings for worst-case *** is revealed that if ammonia pump is not stopped within 10 minutes,concentration inside and outside the control room may reach to 384 ppm and 2630 ppm,compared to 1100 ppm(AEGL-3).Thus the proposed method would be easy,time saving and covers more details and would be handy for practicing engineers working in different chemical process industries.

关键词： Integrated hazard identification HAZOP What-if Risk assessment Risk matrix

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