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A New Class of L-Moments Based Calibration Variance Estimators

Computers, Materials & Continua 2021年第3期66卷 3013-3028页

作者： Usman shahzad Ishfaq Ahmad Ibrahim Mufrah Almanjahie Nadia H.Al Noor muhammad Hanif Department of Mathematics and Statistics International Islamic UniversityIslamabad46000Pakistan Department of Mathematics and Statistics PMAS-Arid Agriculture UniversityRawalpindi46300Pakistan Department of Mathematics King Khalid UniversityAbha62529Saudi Arabia Statistical Research and Studies Support Unit King Khalid UniversityAbha62529Saudi Arabia Department of Mathematics College of ScienceMustansiriyah UniversityBaghdad10011Iraq

Variance is one of themost important measures of descriptive statistics and commonly used for statistical *** traditional second-order central moment based variance estimation is a widely utilized ***,traditional variance estimator is highly affected in the presence of extreme *** this paper initially,proposes two classes of calibration estimators based on an adaptation of the estimators recently proposed by Koyuncu and then presents a new class of L-Moments based calibration variance estimators utilizing L-Moments characteristics(L-location,Lscale,L-CV)and auxiliary *** is demonstrated that the proposed L-Moments based calibration variance estimators are more efficient than adapted *** data is considered for assessing the performance of the proposed *** also demonstrated an application related to apple fruit for purposes of the *** artificial and real data sets,percentage relative efficiency(PRE)of the proposed class of estimators with respect to adapted ones are *** PRE results indicate to the superiority of the proposed class over adapted ones in the presence of extreme *** this manner,the proposed class of estimators could be applied over an expansive range of survey sampling whenever auxiliary information is available in the presence of extreme values.

关键词： L-moments variance estimation calibration approach stratified random sampling

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生物炭和内生菌促进大豆增加养分吸收和调节营养参数的叠加作用（英文）

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2017年第2期18卷 109-124页

作者： muhammad WAQAS Yoon-Ha KIM Abdul Latif khan Raheem shahzad Sajjad ASAF muhammad HAMAYUN Sang-Mo KANG muhammad Aaqil khan In-Jung LEE School of Applied Biosciences Kyungpook National University Daegu 702-701 Korea Department of Agriculture Abdul Wali Khan University Mardan Mardan 23200 Pakistan Division of Plant Sciences University of Missouri Columbia MO 65211 USA UoN Chair of Oman＇s Medicinal Plants ＆ Marine Natural Products University of Nizwa Nizwa 616 Oman Department of Botany Abdul Wali Khan University Mardan Mardan 23200 Pakistan

目的:探讨提高大豆作物品质的方法。创新点:研究了生物炭和植物内生菌联合使用对大豆营养吸收和营养品质的叠加作用。方法:采用硬木生物炭和半乳糖霉菌(Galactomyces geotrichum WLL1)对大豆进行处理,按照处理方式的不同分成四组,包括... 详细信息

目的:探讨提高大豆作物品质的方法。创新点:研究了生物炭和植物内生菌联合使用对大豆营养吸收和营养品质的叠加作用。方法:采用硬木生物炭和半乳糖霉菌(Galactomyces geotrichum WLL1)对大豆进行处理,按照处理方式的不同分成四组,包括对照组(无处理)、***处理组、生物炭处理组和生物炭与***联合处理组。通过对比研究生物炭和内生菌对大豆宏量营养素和微量营养素的吸收和同化的作用,并观察其对功能性氨基酸、异黄酮、脂肪酸组成、总糖含量、总酚含量和1,1-二苯基苦基苯肼(DPPH)自由基清除能力的影响。结论:研究结果发现生物炭和内生菌单独或联合处理均能增加大豆养分的吸收,促进功能性氨基酸的合成,并提升大豆营养品质。同时,生物炭是一种额外的营养源,而内生菌能产生生物刺激效应,两者联合使用具有叠加作用,比单独使用更加有效。

关键词：植物内生菌养分吸收同化营养品质大豆

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Hydrodynamics and Sensitivity Analysis of a Williamson Fluid in Porous-Walled Wavy Channel

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Computers, Materials & Continua 2021年第9期68卷 3877-3893页

作者： A.shahzad W.A.khan R.Gul B.Dayyan M.Zubair Department of Mathematics COMSATS University IslamabadAbbottabad Campus22060Pakistan Department of Mechanical Engineering College of Engineering Prince Mohammad Bin Fahd UniversityAl Khobar31952Kingdom of Saudi Arabia

In this work,a steady,incompressible Williamson fluid model is investigated in a porous wavy *** situation arises in the reabsorption of useful substances from the glomerular filtrate in the *** 80%reabsorption,urine is left,which behaves like a thinning *** laws of conservation of mass and momentum are used to model the physical *** analytical solution of the problem in terms of stream function is obtained by a regular perturbation expansion *** asymptotic integration method for small wave amplitudes and the RK-Fehlberg method for pressure distribution has been used inside the *** is demonstrated that the forward flow becomes fast in the narrow region(at x=0.75),which dominates the upward flow inside the *** study the impact of model parameters on outputs,we applied normalized local sensitivity analysis and noticed that the most influential parameter for the longitudinal velocity profile is the dimensionless wave *** reabsorption parameter is sensitive for transverse velocity in the narrow region,and the Weissenberg number has a strong effect on the pressure inside the ***,the least sensitive parameters for the velocity components and pressure have been identified.

关键词： Sensitivity analysis Williamson fluid regular perturbation method asymptotic approximation RK-Fehlberg method kidney flow

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Prevalence of plasmid mediated bla_(TEM-1) and bla_(CTX-M-15) type extended spectrum beta-lactamases in patients with sepsis

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Asian Pacific Journal of Tropical Medicine 2012年第2期5卷 98-102页

作者： shahzad F Haque Saeedut-Z Ali Mohammed TP Asad U khan Department of Medicine J.N.Medical CollegeAligarhIndia Interdisciplinary Biotechnology Unit AMUAligarh Muslim UniversityAligarhIndia Department of Medicine J.N.Medical College.AligarhIndia

Objective:To characterize the bacterial pathogens in patients having gram negative septicaemia. Further,to evaluate the antimicrobial resistance and underlying molecular mechanisms in these ***:A total number of 70 cases of gram negative sepsis were included in this prospective,open labeled,observational *** methods for isolation and identification of bacteria were *** susceptibility and ESBL testing was performed by the standard disc diffusion *** amplification was performed to identify blaCTX-M,blaSHVand blaTEM type *** experiments were performed to show resistant marker transfer. Results:The most prevalent isolates Escherichia coli（***） 58.6%,Klebsiella Spp.32.9%and Pseudomonas 8.6%,were resistant to most of the antimicrobials including cefazolin,ceftriaxone, cefuroxime,ampicillin and co-trimoxazole but sensitive to imipenem and *** and MBL production was seen 7.3%and 12.2%of *** isolates *** isoaltes were found to have blaCTX-M-15 and two of them also showed blaTEM-1 type ***, none of them showed blaSHV.Conjugation experiments using J-53 cells confirmed these resistant markers as plasmid ***:This work highlights the molecular epidemiology of escalating antimicrobial resistance and likely switch over of blaCTX-M-15 type extended spectrum beta-lactamases by blaTEM type ESBLs in ***,the antimicrobial resistance by horizontal gene transfer was predominant among Enterobacteraceae in the community setting.

关键词： Gram negative sepsis ESBL Antimicrobial resistance

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Search for a lighter neutral custodial fiveplet scalar in the Georgi-Machacek model

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Chinese Physics C 2022年第8期46卷 114-121页

作者：王储陶军全 M.Aamir shahzad 陈国明 S.Gascon-Shotkin Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Institut de Physique des 2 Infinis de Lyon Universitéde LyonUniversitéClaude Bernard Lyon 1CNRS-IN2P3Villeurbanne 69622France

Many researches from both theoretical and experimental perspectives have been performed to search for a new Higgs Boson that is lighter than the 125 GeV Higgs boson,which was discovered at the LHC in *** this study,we explore the possibility of constraining a lighter neutral custodial fiveplet scalar H_(5)^(0) in the GeorgiMachacek(GM) model using the latest results of the search for a lighter Higgs boson decaying into two photons from LHC *** custodial-singlet mass eigenstate h or H is considered to be the LHC observed 125 GeV Higgs boson.A new set of constrained parameters that is favoured by low-mass H_(5)^(0) is proposed to generate events *** production of H_(5)^(0) from a scan based on the constrained parameters is compared to the latest results of the search for a lighter Higgs boson decaying into two photons by the CMS Collaboration after applying theoretical constraints from the GM model and constraints from all existing relevant experimental measurements,including the recent results of the Higgs boson searches by the *** analyses of the surviving GM parameter space are *** tendencies and correlations of the GM input parameters from phenomenological studies are *** addition,the discovery potential of the other interesting decay channels of this low-mass neutral custodial fiveplet scalar are discussed.

关键词： Georgi-Machacek model lighter neutral custodial fiveplet scalar phenomenological studies

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On Computing the Suitability of Non-Human Resources for Business Process Analysis

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Computers, Materials & Continua 2021年第4期67卷 303-319页

作者： Abid Sohail Khurram shahzad P.D.D.Dominic muhammad Arif Butt muhammad Arif muhammad Imran Tariq Department of Computer Science COMSATS University IslamabadLahorePakistan Punjab University College of Information Technology University of the PunjabLahorePakistan Universiti Teknologi PETRONAS Bandar Seri IskandarTronoh PerakMalaysia School of Computer Science Guangzhou UniversityGuangzhou510006China Department of Computer Science and Information Technology Superior UniversityLahorePakistan

Business process improvement is a systematic approach used by several organizations to continuously improve their quality of *** to that is analyzing the current performance of each task of the process and assigning the most appropriate resources to each *** continuation of our previous work,we categorize resources into human and non-human *** instance,in the healthcare domain,human resources include doctors,nurses,and other associated staff responsible for the execution of healthcare activities;whereas the non-human resources include surgical and other equipment needed for *** this study,we contend that the two types of resources(human and non-human)have a different impact on the process performance,so their suitability should be measured ***,no work has been done to evaluate the suitability of non-human resources for the tasks of a ***,it becomes difficult to identify and subsequently overcome the inefficiencies caused by the non-human resources to the *** address this problem,we present a three-step method to compute a suitability score of non-human resources for the *** an evaluation of the proposed method,a healthcare case study is used to illustrate the applicability of the proposed ***,we performed a controlled experiment to evaluate the usability of the proposed *** encouraging response shows the usefulness of the proposed method.

关键词： Business process management business process improvement process warehouse data warehouse resource suitability component resource suitability health care artificial intelligence

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Exploitation of Concatenated Olive Plastome DNA Markers for Reliable Varietal Identification for On-Farm Genetic Resource Conservation

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American Journal of Plant Sciences 2015年第19期6卷 3045-3074页

作者： muhammad Noman Wajya Ajmal muhammad Ramzan khan Armghan shahzad Ghulam muhammad Ali National Institute for Genomics and Advanced Biotechnology National Agricultural Research Centre (NARC) Islamabad Pakistan PARC Institute of Advanced Studies in Agriculture National Agricultural Research Centre (NARC) Islamabad Pakistan

Rapid and reliable identification of olive plants using DNA markers has been attempted in the past but the selection of polymorphic regions for discrimination at varietal level remained obscure. Recent sequencing of plastid genome of the olive flaunts high resolution Cp markers for olive DNA fingerprinting. Using this information, we designed a combination of chloroplast markers to amplify genes recruited in photosynthesis, ribosomal and NADH energy metabolism for varietal identification of olive plants. Concatenated DNA sequences of more than 100 unknown and 10 reference plants samples were analyzed using various bioinformatics and phylogenetic tools. Conserved blocks of nucleotide sequences were detected in multiple alignments. Phylogenetic reconstruction differentiated the unknown plants into various clusters with known varieties. Further narrowing down of the samples through UPGMA tree clearly separated the plants into Arbosana, Frantoio and Koroneiki as the major varieties. Multiple alignments of these clusters revealed important variety specific SNPs including G and T nucleotides at specific positions. Sequence identifying at intra cultivar level was more than 98.79% while it dropped to 97%, and even to 96% at inter varietal level. Furthermore, a neighbor net network analysis separated these three clusters, thus validating the results of UPGMA tree. Over all, out of 100 plants samples, 49 plants were identified that fall into 10 varieties including Arbosana, Carolea, Chetoui, Coratina, Domat, Frantoio, Gemlik, Koroneiki,Leccino and Moraiolo. The maximum number of known plants belongs to Frantoio and Gemlik (8 each). The least number of samples was identified from Carolea, Domat and Moraiolo with 2 samples each. However, 51 plants could not be identified, as plants were not clustered with any of reference control. Our results have implications in on-farm conservation of olive germplasm and provision of genuine material for multiplication of authentic varieties.

关键词： DNA Fingerprinting Olive Marker Chloroplast Genome Identification Phylogenetic

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The charge state distribution of B, C, Si, Ni, Cu and Au ions on 5 MV pelletron accelerator

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Nuclear Science and Techniques 2017年第5期28卷 43-47页

作者： Ali Awais Javaid Hussain muhammad Usman Waheed Akram Kashif shahzad Turab Ali Ishaq Ahmad Malik Maaza Experimental Physics Laboratories National Centre for Physics Islamabad 44000 Pakistan UNESCO-UNISA Africa Chair in Nanosciences/ Nanotechnology College of Graduate Studies University of South Africa Muckleneuk Ridge PO Box 392 PretoriaSouth Africa Nanosciences African Network (NANOAFNET) iThemba LABS-National Research Foundation 1 Old Faure RoadPO Box 722 Somerset West Western Cape Province 7129South Africa

Stripper gas and terminal potential play a key role for the charge state distribution in a tandem pelletron accelerator. The knowledge of this distribution is important for experiments performed on tandem accelerators. The charge state distribution of B, C, Si, Ni, Cu and Au beams is measured by using Ar as stripper gas, and terminal potential is varied from 0.3 to 3.0 MV on 5UDH-2 tandem pelletron accelerator installed at the National Centre for Physics, Islamabad. The individual charge state is measured after the switching magnet at 15° in high-energy portion. It is observed that the higher charge states are stable in the range of lower and middle atomic masses of periodic table, whereas higher atomic mass(Au) shows beam current instability in higher charge states. For carbon,the charge distribution at 1.7 MV terminal potential by varying stripper gas pressure is also studied, which resulted in decreased overall transmission with good current value for higher charge states.

关键词： Pelletron accelerator Charge state distribution Stripper gas Terminal potential

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Improvement in winter wheat productivity through regulating PSⅡ photochemistry,photosynthesis and chlorophyll fluorescence under deficit irrigation conditions

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Journal of Integrative Agriculture 2022年第3期21卷 654-665页

作者： shahzad ALI XU Yue-yue MA Xiang-cheng JIA Qian-min JIA Zhi-kuan College of Pastoral Agriculture Science and Technology Lanzhou UniversityLanzhou 730000P.R.China Institute of Water Saving Agriculture in Arid Areas Yangling 712100P.R.China

Deficit irrigation is critical to global food production,particularly in arid and semi-arid regions with low *** water shortage has threatened agricultural sustainability under the dry-land farming system in China,there is an urgent need to develop effective water-saving *** carried out a field study under two cultivation techniques:(1) the ridge and furrow cultivation model(R);and(2) the conventional flat farming model(F),and three simulated precipitation levels(1,275 mm;2,200 mm;3,125 mm) with two deficit irrigation levels(150 and 75 mm).We demonstrated that under the ridge furrow(R) model,rainfall harvesting planting under 150 mm deficit irrigation combined with 200 mm simulated precipitation can considerably increase net photosynthesis rate(P_(n)),quantum yield of PSII(ΦPSⅡ),electron transport rate(ETR),performance index of photosynthetic PSII(F_(v)/F_(m)′),and transformation energy potential of PSII(F_(v)/F_(o)).In addition,during the jointing,anthesis and grain-filling stages,the grain and biomass yield in the R model are 18.9 and 11.1% higher than those in the flat cultivation model,respectively,primarily due to improved soil water *** winter wheat fluorescence parameters were significantly positively associated with the photosynthesis,biomass and wheat *** result suggests that the R cultivation model with irrigation of 150 mm and simulated precipitation of 200 mm is an effective planting method for enhancing P_(n),biomass,wheat production,and chlorophyll fluorescence parameters in dry-land farming areas.

关键词： chlorophyll fluorescence deficit irrigation photosynthesis production planting models soil moisture content

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Seed priming improves early seedling vigor, growth and productivity of spring maize

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Journal of Integrative Agriculture 2015年第9期14卷 1745-1754页

作者： Hafeez ur Rehman Hassan Iqbal shahzad M A Basra Irfan Afzal muhammad Farooq Abdul Wakeel WANG Ning Seed Physiology Laboratory Department of Crop PhysiologyUniversity of Agriculture Department of Agronomy University of Agriculture Institute of Soil and Environmental Sciences University of Agriculture Agricultural Information Institute Chinese Academy of Agricultural Sciences

Potential of seed priming treatments in improving the performance of early planted maize was evaluated against timely planting. Seeds of maize hybrid FH-810 were soaked in water (hydropriming), CaCl2 (2.2%, osmopriming), moringa leaf extracts (MLE 3.3%, osmopriming) and salicylic acid (SA, 50 mg L–1, hormonal priming) each for 18 h. Untreated and hydroprimed seeds were taken as control. Seeds primed with SA took less time in emergence and had high vigor in early planted maize. Amongst treatments, hormonal priming, reduced the electrical conductivity, increased the leaf relative and chlorophyl contents fol owed by osmopriming with CaCl2 at seedling stage. Likewise, plant height, grain rows and 1 000-grain weight, grain and biological yield and harvest index were also improved by seed priming;however hormonal priming and osmopriming with MLE were more effective in this regard. Improved yield performance by hormonal priming or osmopriming with MLE in early planting primarily owed to increased leaf area index, crop growth and net assimilation rates, and maintenance of green leaf area at maturity. In conclusion, osmopriming with MLE and hormonal priming with SA were the most economical treatments in improving productivity of early planted spring maize through stimulation of early seedling growth at low temperature.

关键词： low temperature membrane permeability organic stimulants moringa leaf extracts salicylic acid leaf area duration yield

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