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V-Shaped Monopole Antenna with Chichena Itzia Inspired Defected Ground Structure for UWB Applications

Computers, Materials & Continua 2020年第10期65卷 19-32页

作者： naeem Ahmad Jan Saad Hassan Kiani Fazal muhammad Daniyal Ali Sehrai Amjad Iqbal muhammad Tufail Sunghwan Kim Department of Electrical Engineering Iqra National UniversityPeshawar25000Pakistan Department of Electrical Engineering City University of Science and Information TechnologyPeshawar25000Pakistan Department of Electrical Engineering Multimedia UniversityCyberjaya63100Malaysia Department of Mechatronics Engineering University of Engineering and TechnologyPeshawar25000Pakistan Department of Electrical Engineering University of UlsanUlsan44610Korea

Due to rapid growth in wireless communication technology,higher bandwidth requirement for advance telecommunication systems,capable of operating on two or higher bands with higher channel capacities and minimum distortion losses is *** this paper,a compact Ultra-Wideband(UWB)V-shaped monopole antenna is *** response is achieved by modifying the ground plane with Chichen Itzia inspired rectangular staircase *** proposed V-shaped is designed by incorporating a rectangle,and an inverted isosceles triangle using FR4 *** size of the antenna is 25 mm×26 mm×1.6 *** proposed V-shaped monopole antenna produces bandwidth response of 3 GHz Industrial,Scientific,and Medical(ISM),Worldwide Interoperability for Microwave Access(WiMAX),(IEEE 802.11/HIPERLAN band,5G sub 6 GHz)which with an additional square cut amplified the bandwidth response up to 8 GHz ranging from 3.1 GHz to 10.6 GHz attaining UWB defined by Federal Communications Commission(FCC)with a maximum gain of 3.83 *** antenna is designed in Ansys *** for key performance parameters of the antenna are *** measured results are in good agreement with the simulated *** to flat gain,uniform group delay,omni directional radiation pattern characteristics and well-matched impedance,the proposed antenna is suitable for WiMAX,ISM and heterogeneous wireless systems.

关键词： V-shape monopole gain staircase ultra-wideband omni-directional defected ground structure

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Development of mutants with varying flowering times by targeted editing of multiple SVP gene copies in Brassica napus L.

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The Crop Journal 2022年第1期10卷 67-74页

作者： Sunny Ahmar Yungu Zhai Huibin Huang Kaidi Yu muhammad Hafeez Ullah Khan muhammad shahid Rana Abdul Samad shahid Ullah Khan Olalekan Amoo Chuchuan Fan Yongming Zhou National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina

Manipulation of flowering time to develop cultivars with desired maturity dates is fundamental in plant *** is desirable to generate polyploid rapeseed(Brassica napus L.)germplasm with varying flowering time controlled by a few *** the present study,Bna SVP,a rapeseed homolog of the Arabidopsis SVP(Short Vegetative Phase)gene,was characterized and a set of mutants was developed using a CRISPR/Cas9-based gene-editing tool.A single construct targeting multiple sites was successfully applied to precisely mutate four copies of Bna *** induced mutations in these copies were stably transmitted to subsequent *** mutants with loss-of-function alleles and free transgenic elements were generated across the four Bna SVP *** mutant T_(1)lines tested in two environments(summer and winter growing seasons)showed early-flowering *** decrease in flowering time was correlated with the number of mutated Bna SVP *** quadruple mutants showed the shortest flowering time,with a mean decrease of 40.6%–50.7%in length relative to the wild type under the two growth *** study demonstrates the quantitative involvement of Bna SVP copies in the regulation of flowering time and provides valuable resources for rapeseed breeding.

关键词： Brassica napus Flowering time BnaSVP Gene editing

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Impact of Farmer's Agricultural Training on Wheat Yield in Punjab,Pakistan

Impact of Farmer's Agricultural Training on Wheat Yield in P...

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作者： Hafiz muhammad shahid 南京农业大学

学位级别：硕士

农业在大多数发展中国家的经济中发挥着重要作用。在巴基斯坦,小麦是重要的主粮作物,其产量对粮食安全具有重要意义。虽然巴基斯坦自称是亚洲小麦的主要生产国之一,但由于人口和收入的增加,其产量不充足问题在大多数政策辩论中反复出现... 详细信息

农业在大多数发展中国家的经济中发挥着重要作用。在巴基斯坦,小麦是重要的主粮作物,其产量对粮食安全具有重要意义。虽然巴基斯坦自称是亚洲小麦的主要生产国之一,但由于人口和收入的增加,其产量不充足问题在大多数政策辩论中反复出现。为了提高产量,各种利益相关者(非政府组织(NGO)、农民团体和政府的农业部)已经启动了小麦生产的农业培训,但这些培训的影响缺乏经验分析。我们通过回答以下问题来解决这一研究空白:这些培训能提高小麦生产率吗?如果可以,对于什么样的农民来说,培训可以增加小麦产量的效果更好?为了填补这一研究空白,我们收集了来自巴基斯坦旁遮普省300个农户的横断面数据,并进行了地块层面的观察。使用内生转换回归(ESR)回归和倾向得分匹配(PSM)评估参与培训对小麦产量的影响。结果表明,培训提供方面,非政府组织在培训涵盖的主题和受训人数方面均名列前茅的。同样与人力资本理论一致,培训可提高小麦产量约20%。其机制是培训改进了投入分配,促进了创新的采用并加强了作物管理实践。该研究有力地表明,如果培训得到适当政策措施的支持,小麦产量可能会提高。因此,我们建议政府通过提供示范农场等培训设施,不断扩大在巴基斯坦的培训活动。

关键词：农业培训小麦产量农村发展信息教育巴基斯坦

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One-pot Synthesis,Characterization and Crystal Structure Determination of Novel 1,4,5-Trisubstituted 1,2,3-Triazole with Two Conformational Isomers:1-Benzyl-5-((4-methoxyphenyl)ethynyl)-4-phenyl-1H-1,2,3-triazole

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Chinese Journal of Structural Chemistry 2016年第1期35卷 55-60页

作者： AHMED muhammad naeem YASIN Khawaja Ansar KHAN Bilal Ahmad RIAZ muhammad SADIQ-UR-REHMAN LO Kong Mun NASEER muhammad Moazzam ARSHAD Ifzan IRSHAD muhammad Department of Chemistry The University of Azad Jammu and Kashmir Department of Chemistry University of Malaya Department of Chemistry Quaid-i-Azam University Department of Chemistry University of Poonch Rawalakot Azad Kashmir

The title compound l-benzyl-5-（（4-methoxyphenyl）ethynyl）-4-phenyl-1H-1,2,3-triazole（C24H19N3O） was designed and synthesized using one-pot strategy and structural characterization was done by single-crystal X-ray diffraction,NMR,IR and *** compound was crystallized out from an ethanolic solution in triclinic system,space group P1 with a =9.9038（9）,b = 10.2928（9）,c = 18.8715（19）A°,α = 103.541（6）,β = 90.507（7）,γ = 97.157（7）°,V =1854.2（3） A°3,Z = 4,crystal size（mm） = 0.25 × 0.1 × 0.1 and R（int） = *** asymmetric unit contains two independent *** crystal structure of the title compound is stabilized by intramolecular interactions of types C-H…N and C-H…***,X-ray analysis reveals obvious C-H…π,π-π stacking interactions between two adjacent aromatic ring planes.

关键词： click chemistry trisubstituted triazole alkyne crystal structure C–H…π interactions

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Influence of Y^(3+),Yb^(3+),Gd^(3+) cations on structural and electromagnetic properties of CuFe_(2)O_(4) nanoferrites prepared via one step sol-gel method

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Journal of Rare Earths 2021年第10期39卷 1224-1231,I0003页

作者： Aleena Kiran Majid Niaz Akhtar muhammad Yousaf Khalid Mujassam Batoo Omar MAldossary Salman naeem Khan Department of Physics COMSATS University IslamabadLahore CampusDefence Road Off RaiwindLahore54000Pakistan Department of Physics Mohammad Nawaz Sharif University of Engineering and TechnologyMultan60000Pakistan School of Energy and Environment Southeast UniversityNo2 Si Pai LouNanjing 210096China King Abdullah Institute for Nanotechnology King Saud UniversityP.O.Box 2455Riyadh11458Saudi Arabia Department of Physics and Astronomy College of ScienceKing Saud UniversityP.O.Box-2455Riyadh11451Saudi Arabia Micro-mm Wave Laboratory(M2L) Department of PhysicsCOMSATS University IslamabadLahore CampusDefence Road Off RaiwindLahore54000Pakistan

Rare earths(REs) play a key role in distorting spinel structure by creating some defects at the lattice sites and make them suitable for magnetodielectric *** the present study,the nanoferrites of CuRE0.02Fe1.98O4,where REs=Y^(3+),Yb^(3+),Gd^(3+),were prepared using one step sol-gel *** prepared samples are copper ferrite(CFO),yttrium doped copper ferrite(Y-CFO),ytterbium doped copper ferrite(Yb-CFO) and gadolinium doped copper ferrite(Gd-CFO),*** single-phase structure of all the REs doped nanoferrites was determined by X-ray diffraction(XRD) *** porosity,agglomerations and grain size of the REs doped copper ferrite were examined using field emission scanning electron microscopy(FESEM) *** transform infrared spectroscopy(FTIR)elaborates the phase formation and environmental effects on the REs doped nanoparticles(NPs).The recorded room temperature M-H loops from a vibrating sample magnetometer(VSM) elucidate the magnetic properties of the REs doped spinel *** magnetic saturation(Ms) was calculated in the range of 23.08 to 51.78 emu/*** calculated coercivity values(272.6 to 705.60 Oe) confirm the soft magnetic behavior of REs doped copper ***,the electromagnetic and dielectric properties were assessed using a Vector network analyzer(VNA) from 1 to 6 *** permeability,permittivity,dielectric tangent loss and electric modulus of the REs doped spinel ferrites illustrate that the prepared NPs may be suitable for microwave and high frequency applications.

关键词： Rare earth elements Nanoparticles Spinel ferrites VSM VNA Magnetodielectric applications

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Analyzing COVID-19 Impact on the Researchers Productivity through Their Perceptions

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Computers, Materials & Continua 2021年第5期67卷 1835-1847页

作者： Syeda Javeria Shoukat Humaira Afzal muhammad Rafiq Mufti muhammad Khalid Sohail Dost muhammad Khan Nadeem Akhtar shahid Hussain Mansoor Ahmed Department of Computer Science COMSATS UniversityIslamabad45550Pakistan Department of Computer Science Bahauddin Zakariya UniversityMultan60800Pakistan Department of Computer Science COMSATS University IslamabadVehari CampusIslamabad61100Pakistan Department of Management Studies Bahria Business SchoolBahria UniversityIslamabad44000Pakistan Department of Computer Science&IT The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Computer and Information Science University of OregonEugeneOR97401USA

Context:Since the end of 2019,the COVID-19 pandemic had a worst impact on world’s economy,healthcare,and *** are several aspects where the impact of COVID-19 could be *** these,one aspect is the productivity of researcher,which plays a significant role in the success of an ***:There are several factors that could be aligned with the researcher’s productivity of each domain and whose analysis through researcher’s feedback could be beneficial for decision makers in terms of their decision making and implementation of mitigation plans for the success of an ***:We perform an empirical study to investigate the substantial impact of COVID-19 on the productivity of researchers by analyzing the relevant factors through their *** study aims to find out the impact of COVID-19 on the researcher’s productivity that are working in different *** this study,we conduct a questionnaire-based analysis,which included feedback of 152 researchers of certain *** researchers are currently involved in different research ***,we perform a statistical analysis to analyze the collected responses and report the ***:The results indicate the substantial impact of COVID-19 pandemics on the researcher’s productivity in terms of mental disturbance,lack of regular meetings,and field visits for the collection of primary ***:Finally,it is concluded that researcher’s daily or weekly meetings with their supervisors and colleagues are necessary to keep them more productive in task *** findings would help the decision makers of an organization in the settlement of their plan for the success of an organization.

关键词： COVID-19 researchers productivity statistical analysis

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Impact of Mergers ＆ Acquisitions on Job Security and Motivation （A Case Study of Banking Employees of Pakistan）

Impact of Mergers ＆ Acquisitions on Job Security and Motiva...

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2011 3rd International Conference on Information and Financial Engineering（ICIFE 2011）

作者： muhammad Naveed muhammad naeem Hanif shahid Ali Project Manager (R&D) Higher Education Commission Pakistan Mohammad Ali Jinnah University Islamabad Pakistan Ph.D. Scholar Institute of Management Sciences Peshawar PakistanAssistant Professor

To achieve competitive advantage M＆A’s has become a strategic option for organizations. The process of M＆A is rising without there being reason of economic performance to justify such action. A phenomenal change has been witnessed in the banking industry of Pakistan in recent years,owing to the liberal reforms executed by the State Bank of Pakistan and the effective restructuring of banks. This theoretical framework demonstrates how this process of M＆A has recently affected the occupational and skill profiles of job in banking industry of Pakistan. On the basis of different views of authors,a conceptual framework is developed that is supported by a questionnaire. It is suggested that this framework can give a new sight into explaining the impact of M＆A on employee’s job satisfaction and security. This framework investigated the impact of M＆A on the employee’s job motivation and job satisfaction having both pre ＆ post M＆A job experience and those having only post M＆A experience.

关键词： Mergers & Acquisitions (M&A) Job Security Job Satisfaction

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Measurements of ^(nat) Cd(γ,x)reaction cross sections and isomer ratio of ^(1,5m.g)Cd with the bremsstrahlung end-point energies of 50 and 60 MeV

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Chinese Physics C 2021年第12期45卷 80-93页

作者： muhammad Nadeem Md.Shakilur Rahman muhammad shahid Guinyun Kim Haladhara Naik Nguyen Thi Hien Department of Physics Kyungpook National UniversityDaegu 41566Korea Institute of Nuclear Science and Technology Bangladesh Atomic Energy CommissionSavarDhakaBangladesh Radiochcmistry Division Bhabha Atomic Research CentreMumbai 400085India

The flux-weighted average cross sections ^(nat) Cd(γ,xn)^(115g,m,111m,109,107,105,104)Cd and ^(nat) Cd(γ,x)^113g,112,111g,110m)Ag reactions were measured at the bremsstrahlung end-point energies of 50 and 60 *** activa tion and off-line y-ray spectrometric technique was carried out using the 100 MeV electron linear accelerator at the Pohang Accelerator Laboratory,*** ^(nat)lCd(γ,xn) reaction cross sections as a function of photon energy were theoretically calculated using the TALYS-1.95 and the EMPIRE-3.2 Malta ***,the flux-weighted average cross sections were obtained from the theoretical values of mono-energetic *** values were compared with the flux-weighted values from the present study and were found to be in general *** measured experimental reaction cross-sections and integral yields were described for cadmium and silver isotopes in the ^(nat)Cd(γ,xn)^(115g,m,111m,109,107,105,104) and ^(nat)Cd(γ,x)^(113g,112.111g,110m)Ag *** isomeric yield ratio(IR) of ^(115g.m)Cd in the ^(nat)Cd(γ,xn) reaction was determined for the two bremsstrahlung end-point *** measured isomeric yield ratios of ^(115g,m)Cd in the ^(nat)Cd(γ,xn) reaction were also compared with the theoretical values of the nuclear model codes and previously published literature data of the ^(116)Cd(γ,x) and ^116(γ,2n) *** was found that the IR value increases with increasing projectile energy,which demonstrates the characteristic of excitation ***,the higher IR value of ^(115g.m)Cd in the ^(116)Cd(n,2n)reaction compared to that in the ^(116)Cd(γ,x)reaction indicates the role of compound nuclear spin alongside excitation energy.

关键词： ^(nat)Cd(γ xn)reaction cross sections isomer yield ratio of^(115g m)Cd off-lineγ-ray spectrometric technique TALYS-1.95 TENDL-2019 EMPIRE-3.2 Malta

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Sentiment Analysis in Social Media for Competitive Environment Using Content Analysis

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Computers, Materials & Continua 2022年第6期71卷 5603-5618页

作者： shahid Mehmood Imran Ahmad muhammad Adnan Khan Faheem Khan T.Whangbo Riphah School of Computing&Innovation Faculty of ComputingRiphah International University Lahore CampusLahore54000Pakistan Pattern Recognition and Machine Learning Lab Department of SoftwareGachon UniversitySeongnamGyeonggido13120Korea Department of Computer Engineering Gachon UniversitySeongnam13557Korea

Education sector has witnessed several changes in the recent *** changes have forced private universities into fierce competition with each other to get more students *** competition has resulted in the adoption of marketing practices by private universities similar to commercial *** get competitive gain,universities must observe and examine the students’feedback on their own social media sites along with the social media sites of their *** study presents a novel framework which integrates numerous analytical approaches including statistical analysis,sentiment analysis,and text mining to accomplish a competitive analysis of social media sites of the *** techniques enable local universities to utilize social media for the identification of the most-discussed topics by students as well as based on the most unfavorable comments received,major areas for improvement.A comprehensive case study was conducted utilizing the proposed framework for competitive analysis of few top ranked international universities as well as local private universities in Lahore *** results show that diversity of shared content,frequency of posts,and schedule of updates,are the key areas for improvement for the local *** on the competitive intelligence gained several recommendations are included in this paper that would enable local universities generally and Riphah international university(RIU)Lahore specifically to promote their brand and increase their attractiveness for potential students using social media and launch successful marketing campaigns targeting a large number of audiences at significantly reduced cost resulting in an increased number of enrolments.

关键词： Social media higher education sentiment analysis content analysis competitive analysis text mining

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Optimality of Solution with Numerical Investigation for Coronavirus Epidemic Model

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Computers, Materials & Continua 2021年第5期67卷 1713-1728页

作者： Naveed shahid Dumitru Baleanu Nauman Ahmed Tahira Sumbal Shaikh Ali Raza muhammad Sajid Iqbal muhammad Rafiq muhammad Aziz-ur Rehman Department of Mathematics and Statistics The University of LahoreLahorePakistan Department of Mathematics University of Management and TechnologyLahorePakistan Department of Mathematics Cankaya UniversityBalgatAnkara06530Turkey Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwanChina Institute of Space Sciences Magurele-BucharestRomania Department of Mathematics Lahore College for Women UniversityLahorePakistan Department of Mathematics National College of Business Administration and Economics LahorePakistan Department of Mathematics Faculty of SciencesUniversity of Central PunjabLahorePakistan

The novel coronavirus disease,coined as COVID-19,is a murderous and infectious disease initiated from Wuhan,*** killer disease has taken a large number of lives around the world and its dynamics could not be controlled so *** this article,the spatio-temporal compartmental epidemic model of the novel disease with advection and diffusion process is projected and *** counteract these types of diseases or restrict their spread,mankind depends upon mathematical modeling and medicine to reduce,alleviate,and anticipate the behavior of disease *** existence and uniqueness of the solution for the proposed system are ***,the solution to the considered system is made possible in a well-known functions *** this purpose,a Banach space of function is chosen and the solutions are optimized in the closed and convex subset of the *** essential explicit estimates for the solutions are investigated for the associated auxiliary *** numerical solution and its analysis are the crux of this ***,the consistency,stability,and positivity are the indispensable and core properties of the compartmental models that a numerical design must *** this end,a nonstandard finite difference numerical scheme is developed to find the numerical solutions which preserve the structural properties of the continuous *** M-matrix theory is applied to prove the positivity of the *** results for the consistency and stability of the design are also presented in this *** plausibility of the projected scheme is indicated by an appropriate *** simulations are also exhibited to conclude the results.

关键词： Spatio-temporal advection diffusion explicit estimates auxiliary data M-matrix

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