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Bit Error Rate （BER） Performance Evaluation of Various Space-time Block Codes in MIMO Wireless Communications

通讯和计算机（中英文版） 2010年第3期7卷 32-38页

作者： Sanjay Kumar Sharma syed Naseem ahmad Department of Electronics and Communication Engg. Krishna Institute of Engg. and Technology Ghaziabad 201206 （U.P.）India Department of Electronics and Communication Engg. Jamia Millia Islamia New Delhi-110025 India

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Investigation on the pre-compensation and post-compensation cascaded multi-channel-chirped fiber Bragg gratings for a repeaterless transmission system

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Chinese Optics Letters 2018年第4期16卷 45-50页

作者： K.Khairi H.Fong Kok Z.Lambak M.I.Abdan M.A.Farhan M.H.Othman M.L.H.Jamaluddin S.A.Mohamad Rofie Tee Din Chai K.Chia Ching A.Mohd.Ramli M.A.Mokhtar S.A.syed ahmad M.Mokhtar S.B.ahmad Anas M.A.Mahdi TM Research & Development Sdn.Bhd. Lingkaran Teknokrat Timur Wireless and Photonics Network Research Center Department of Computer & Communication Systems EngineeringFaculty of Engineering Universiti Putra Malaysia

We experimentally designed dispersion-managed repeaterless transmission systems with a pre-compensation and post-compensation technique using multi-channel-chirped fiber Bragg gratings. The repeaterless transmission link supports a single channel（1548.51 nm） with a 10 Gbps repeaterless transmission system over 300 km standard single-mode fiber（SSMF）. In the system design, two distributed Raman amplifiers（DRAs） were used to improve the signal level propagated along the 300 km SSMF. The co-propagating DRA provided 15 dB on–off gain and the counter-propagating produced 32 dB on–off gain at the signal wavelength. The experiment results show that the post-compensation configuration achieves an optimal performance with a bit error rate at 1 × 10-9.

关键词： MC DRA Investigation on the pre-compensation and post-compensation cascaded multi-channel-chirped fiber Bragg gratings for a repeaterle WDM NRZ

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Multivariate Based Variability within Diverse Indian Mustard (<i>Brassica juncea</i>L.) Genotypes

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Open Journal of Genetics 2017年第2期7卷 69-83页

作者： Noor Saleem Sohail ahmad Jan Muahmmad Jawaad Atif Haris Khurshid Shahid Ali Khan Mohib Abdullah Muhammad Jahanzaib Humair Ahmed syed Farman Ullah Azhar Iqbal Sameena Naqi Muhammad Ilyas Naushad Ali Malik Ashiq Rabbani The University of Haripur KPK Pakistan Plant Genetic Resources Institute (PGRI) National Agricultural Research Centre (NARC) Islamabad Pakistan Department of Biotechnology Quaid-i-Azam University Islamabad Pakistan Oilseeds Research Program NARC Islamabad Pakistan School of Crop Production Technology Suranaree University of Technology Nakhon Ratchasima Thailand Land Resources Research Institute NARC Islamabad Pakistan Department of Plant Breeding and Genetics PMAS-Arid Agriculture University Rawalpindi Pakistan

Indian mustard (Brassica juncea L.) germplasm consisting 167 accessions including one check cultivar was evaluated for qualitative and quantitative traits. The present study was conducted to investigate genetic diversity and correlation among studied genotypes of B. juncea L. based on agro-morphological at NARC, Islamabad, Pakistan. To investigate the genetic diversity based on morphological characters, data was recorded on 20 quantitative and 12 qualitative traits. The calculated data was analyzed through two complementary methods, i.e. PCA (Principal Component Analysis) and cluster analysis. Among all the studied cultivars, significant diversity was recorded for different agro-morphological characters. Among all the parameters, maximum variance was recorded for pod shattering (427.2) followed by plant height (345.6), days to 100% flowering (336.2) and main raceme length (210.0). Among all the characters, the greatest and highly significant association (0.99) was found between days to maturity 50% and days to maturity 100% followed by correlation (0.86) among days to flowering 50% and days to flowering 100%, correlation value (0.71) was calculated among leaf length and leaf width. Using cluster analysis all the genotypes were divided into five major groups. It was observed that 7 out of 20 principal components with an Eigen value of ≥1.0 calculated for 73.92% of the total diversity observed between 167 accessions of Indian mustard (B. juncea L.). The contribution of first three PCs in the total PCs was 23.25, 12.87 and 11.24, respectively. Among all the investigated accessions two genotypes 26,813 and 26,817 showed great potential for seeds/silique, 1000-seed weight and seed yield/plant, respectively, so these genotypes are recommended for future breeding programs for achieving promising results.

关键词： Genetic Diversity Agro-Morphology Brassica juncea L. PCA Analysis

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家蚕二化性杂交品种部分数量性状遗传参数的初步评估(英文)

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昆虫学报 2005年第6期48卷 982-985页

作者： Gulam Nabi MALIK syed Zia Ul Haque RUFAIE Tejender Paul SINGH Mohammed Farooq BAQUAL Habib Ullah DAR Division of Sericulture Mirgund Baramulla Sher-e-Kashmir University of Agricultural Sciencesand TechnologyPost Box 674 G.P.O Srinagar 190001 INDIA

采用完全随机设计法根据10头老熟幼虫体重、全茧重、茧层量、茧层率(%)、存活率、万蚕茧层量和茧丝长等指标,对两对二化性家蚕Bombyx moriL.杂交品系(SH6×NB4D2和CSR2×CSR4)杂交一代的22个子代个体进行了遗传参数估算,以缩小优质蚕品... 详细信息

采用完全随机设计法根据10头老熟幼虫体重、全茧重、茧层量、茧层率(%)、存活率、万蚕茧层量和茧丝长等指标,对两对二化性家蚕Bombyx moriL.杂交品系(SH6×NB4D2和CSR2×CSR4)杂交一代的22个子代个体进行了遗传参数估算,以缩小优质蚕品种的候选范围,并且计算出直接筛选的参数,如遗传力和遗传进度等,使这些信息可用于以筛选高产新品种为目的的育种和选择过程中。杂交子代2,4,5,6,7,10,14,16,19和20号个体在这几个指标中表现出显著的优越性。全茧重、万蚕茧层量和茧丝长的遗传力和遗传进度较大,可以简单地从表现型的差异对这些性状进行选择并取得遗传性状改良。其他几个指标(10头老熟幼虫体重、茧层量、茧层率(%)和存活率)的遗传力和遗传进度较低,对这些性状进行直接选择来改良品种的效果较差。

关键词：家蚕杂交一代遗传力遗传进度

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Petrofacies Evolution of Bayana Basin Sandstones of Mesoproterozoic Delhi Supergroup, Bharatpur District, Rajasthan, Northwestern India

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Open Journal of Geology（地质学期刊） 2012年第4期

作者： Abul Hasnat Masood ahmad Chayanika Saikia syed Mohammad Wasim

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Environmental Assessment and Analysis of Chemical Properties of Drinking Water Using Geo-Spatial Technologies: Examples from Lahore Metropolitan

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Advances in Remote Sensing 2018年第3期7卷 259-275页

作者： Ali Imam Mirza Ali Iqtadar Mirza Tabasam Jamal syed Shehzad Hassan Muhammad A. Butt Atif Ali Hafsa Batool Rashid Mahmood Attia Naz Azam Sohail Imran Saddique Kaukab Sana Alvi Javed ahmad Safeer Ali Muneeb Aamir Azeem Akhtar Arshad Javed Department of Geography GC University Lahore Pakistan Remote Sensing Group Department of Space Science University of the Punjab Lahore Pakistan

The contamination of drinking water in Pakistan is a serious threat to its citizens. Urbanization leads to an increased demand of drinking water supply that leads to excessive drawdown that further causes lowering of water table. The current WASA (Water and Sanitation Authority) supply network does not fulfill the demand of a growing metropolitan city of Lahore. The drawdown of Lahore is absolutely reliant on Water and Sanitation Authority (WASA) water supply network that causes numerous problems due to inappropriate management of groundwater capital and increased urbanization. This research investigates groundwater qualities: Alkalinity, Arsenic, Calcium, chloride, Total Hardness, Magnesium, Nitrate, pH and Total Dissolved solids using geographic information system (GIS). Residents of high concentrated towns, like Samnabad Town, Allama Iqbal Town, Gulberg, Data Ganj Bakhsh Town, Ravi Town and Wahga town witness cut-down of water supply mainly due to over burden on tube wells. Chemical properties of drinking water show that most of the parameters were within the allowable limits of WHO whereas the pH, and arsenic values are higher than the average. Arsenic is a carcinogenic element which causes cancer and is higher in the drinking water. Finally, this study identifies highly contaminated groundwater zones and makes it convenient to find actual pollutants. Therefore, plans are needed to protect the aquifer.

关键词： Water Contamination Urbanization Geographic Information System (GIS) Chemical Properties Carcinogenic Elements WHO WebGIS RS WASA DNA pH TDS

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橡胶改性聚丙烯抗冲击性共混胶的性能

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橡胶参考资料 1996年第2期26卷 20-27页

作者： S.Norzalia B.Surani M.Y.ahmad fuad 樊玉燕

前言韧性往往是许多工程应用方面材料选择中的决定因素。塑料在工程和其它方面的用量不断增加,在小的程度上是由于过去三十年间既新又韧的塑料材料的开发。

关键词：聚丙烯橡胶增韧改性抗冲击性共混胶

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印度拉达克羌塘地区黑颈鹤日间行为时间分配

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Zoological Research 2014年第S1期35卷 158-166页

作者： Afifullah Khan Pankaj Chandan Jigmet Takpa syed A.Hussain Rohit Rattan Pushpinder Singh Jamwal Tanveer ahmad Aligarh Muslim University AligarhIndia WWF-India 172-BLodi EstateNew DelhiIndia Department of Wildlife Protection LadakhJ&K GovernmentIndia Wildlife Institute of India DehradunGovernment of IndiaIndia

时间分配研究是理解栖息地利用模式、资源利用和限制物种生存因素的合适手段,这些一旦掌握清楚了便可被整合到管理策略的制定中。于2008年、2009年和2010年繁殖期对拉达克地区的黑颈鹤(Grus nigricollis)日间行为时间分配进行了研究。... 详细信息

时间分配研究是理解栖息地利用模式、资源利用和限制物种生存因素的合适手段,这些一旦掌握清楚了便可被整合到管理策略的制定中。于2008年、2009年和2010年繁殖期对拉达克地区的黑颈鹤(Grus nigricollis)日间行为时间分配进行了研究。为了更好地统一繁殖周期内不同繁殖阶段的活动模式,将黑颈鹤的繁殖期分成繁殖前期、繁殖中期和繁殖后期。调查期间,共进行了95天野外调查,黑颈鹤观察时长达785 h,所有观察在06:00—19:00完成,共记录到16314次行为事件。该文中黑颈鹤的日间行为时间分配以不同行为的百分比来表示。繁殖期内,黑颈鹤的取食行为占(48.5±1.3)%,其次分别为休息[(14.2±1.2)%]、运动[(10±0.7)%]、繁殖[(10±2.6)%]、保养[(5.7±0.5)%]、警戒[(4.1±0.9)%]、保卫[(1.5±0.3)%]和求偶炫耀[(0.7±0.2)%],另有(5.4±1.9)%]的时间黑颈鹤飞出观察视野。相较于其他生境,黑颈鹤在沼泽草甸生境中停留的时间最长[(43±0.9)%]。

关键词：拉达克羌塘黑颈鹤时间分配繁殖期

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Adaptive Fuzzy Logic Controller for Harmonics Mitigation Using Particle Swarm Optimization

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Computers, Materials & Continua 2022年第6期71卷 4275-4293页

作者： Waleed Rafique Ayesha Khan ahmad Almogren Jehangir Arshad Adnan Yousaf Mujtaba Hussain Jaffery Ateeq Ur Rehman Muhammad Shafiq Department of Electrical&Computer Engineering COMSATS University Islamabad Lahore CampusLahore54000Pakistan syed Babar Ali School of Science and Engineering Lahore University of Management SciencesLahore54000Pakistan Department of Computer Science College of Computer and Information SciencesKing Saud UniversityRiyadh11633Saudi Arabia Department of Electrical Engineering Superior UniversityLahore54000Pakistan Department of Electrical Engineering Government College UniversityLahore54000Pakistan Department of Information and Communication Engineering Yeungnam UniversityGyeongsan38541Korea

An excessive use of non-linear devices in industry results in current harmonics that degrades the power quality with an unfavorable effect on power system *** this research,a novel control techniquebased Hybrid-Active Power-Filter(HAPF)is implemented for reactive power compensation and harmonic current component for balanced load by improving the Power-Factor(PF)and Total–Hormonic Distortion(THD)and the performance of a *** work proposed a soft-computing technique based on Particle Swarm-Optimization(PSO)and Adaptive Fuzzy technique to avoid the phase delays caused by conventional control ***,the control algorithms are implemented for an instantaneous reactive and active current(Id-Iq)and power theory(Pq0)in *** prevent the degradation effect of disturbances on the system’s performance,PS0-PI is applied in the inner loop which generate a required dc ***,a comparative analysis of both techniques has been presented to evaluate and validate the performance under balanced load *** presented result concludes that the Adaptive Fuzzy PI controller performs better due to the non-linearity and robustness of the ***,the gains taken from a tuning of the PSO based PI controller optimized with Fuzzy Logic Controller(FLC)are optimal that will detect reactive power and harmonics much faster and *** proposed hybrid technique minimizes distortion by selecting appropriate switching pulses for VSI(Voltage Source Inverter),and thus the simulation has been taken in SIMULINK/*** proposed technique gives better tracking performance and robustness for reactive power compensation and harmonics *** a result of the comparison,it can be concluded that the PSO-basedAdaptive Fuzzy PI system produces accurate results with the lower THD and a power factor closer to unity than other techniques.

关键词： Harmonics compensation soft computing technique hybrid fuzzy PSO based PI controller HSAPF power quality

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Inhibitory Effects of Several Fluoroquinolones on Feline CYP1A and 3A in Hepatic Microsomes

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Open Journal of Veterinary Medicine（兽医学） 2020年第12期

作者： syed Sher Shah Sadaat Nasrin Stankzi Mohammad Monir Tawfeeq Farid ahmad Tanin Amanullah Aziz Kazuki Sasaki

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