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Multi Sensor-Based Implicit User Identification

Computers, Materials & Continua 2021年第8期68卷 1673-1692页

作者： Muhammad Ahmad Rana Aamir Raza Manuel Mazzara Salvatore Distefano Ali Kashif Bashir Adil khan Muhammad shahzad Sarfraz Muhammad Umar Aftab Department of Computer Science National University of Computer and Emerging SciencesChiniot35400Pakistan Department of Computer Science Bahauddin Zakariya UniversityMultan66000Pakistan Institute of Software Development and Engineering Innopolis UniversityInnopolis420500Russia Dipartimento di Matematica e Informatica—MIFT University of MessinaMessina98121Italy Department of Computing and Mathematics Manchester Metropolitan UniversityManchesterUK

Smartphones have ubiquitously integrated into our home and work environments,however,users normally rely on explicit but inefficient identification processes in a controlled ***,when a device is stolen,a thief can have access to the owner’s personal information and services against the stored *** a result of this potential scenario,this work proposes an automatic legitimate user identification system based on gait biometrics extracted from user walking patterns captured by smartphone sensors.A set of preprocessing schemes are applied to calibrate noisy and invalid samples and augment the gait-induced time and frequency domain features,then further optimized using a non-linear unsupervised feature selection *** selected features create an underlying gait biometric representation able to discriminate among individuals and identify them *** classifiers are adopted to achieve accurate legitimate user *** experiments on a group of 16 individuals in an indoor environment show the effectiveness of the proposed solution:with 5 to 70 samples per window,KNN and bagging classifiers achieve 87–99%accuracy,82–98%for ELM,and 81–94%for *** proposed pipeline achieves a 100%true positive and 0%false-negative rate for almost all classifiers.

关键词： Sensors smartphone legitimate user identification

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Annihilation of Antiprotons in Light Nuclei

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Chinese Physics Letters 2006年第7期23卷 1716-1718页

作者： M. A. Rana E. U. khan M. I. shahzad I. E. Qureshi F. Malik G. Sher S. Manzoor H. A. khan Physics Research Division PINSTECH P. O. Nilore Islamabad Pakistan

CR-39 detectors have been exposed to a 5.9-MeV antiproton beam using the low energy antiproton ring （LEAR） facility at CERN. At this energy, tracks of antiprotons appear in a CR-39 detector after 135 rain of etching in 6M NaOH at 70℃. Fluence of the antiproton beam has been determined using track density. We have also found tracks in the etched CR-39 detector at different depths （250-500μm）. These tracks have resulted from the annihilation of antiprotons with the constituents （H, C and O） of the CR-39 detector. The goal of the experiment is to develop a simple and low-cost method to study properties of antiparticles and those formed after annihilation of these particles with the target matter.

关键词： STOPPED ANTIPROTONS HEAVY-NUCLEI GEV/C

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Relationship between gut microbiota and host-metabolism:Emphasis on hormones related to reproductive function

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Animal Nutrition 2021年第1期7卷 1-10页

作者： Tarique Hussain Ghulam Murtaza Dildar H.Kalhoro Muhammad S.Kalhoro Elsayed Metwally Muhammad I.Chughtai Muhammad U.Mazhar shahzad A.khan Animal Sciences Division Nuclear Institute for Agriculture and Biology CollegePakistan Institute of Engineering and Applied Sciences(NIAB-CPIEAS)Faisalabad38000Pakistan Department of Animal Reproduction Faculty of Animal Husbandry and Veterinary SciencesSindh Agriculture UniversityTandojamSindh70050Pakistan Department of Veterinary Microbiology Faculty of Animal Husbandry and Veterinary SciencesSindh Agriculture UniversityTandojamSindh70050Pakistan Department of Animal Products Technology Faculty of Animal Husbandry and Veterinary SciencesSindh Agriculture UniversityTandojamSindh70050Pakistan Department of Cytology&Histology Faculty of Veterinary MedicineSuez Canal UniversityIsmailia41522Egypt Faculty of Animal Husbandry and Veterinary Sciences University of PoonchRawalakot12350Pakistan

It has been well recognized that interactions between the gut microbiota and host-metabolism have a proven effect on *** gut lumen is known for harboring different bacterial *** by-products and structural components,which are derived through the gut microbiota,generate a signaling response to maintain *** microbiota is not only involved in metabolic disorders,but also participates in the regulation of reproductive hormonal *** phyla,which are localized in the gut,allow for the metabolization of steroid hormones through the stimulation of different *** hormones such as progesterone,estrogen and testosterone play a pivotal role in the successful completion of reproductive *** in this mechanism may lead to reproductive *** bacteria can affect the metabolism,and degrade steroid hor-mones and their relevant *** behavior of the bacteria can safely be implemented to eliminate steroidal compounds from a polluted *** this review,we summarize the meta-bolism of steroid hormones on the regulation of gut microbiota and vice-versa,and also examined the significant influence this process has on various events of reproductive ***,the evidence suggests that steroid hormones and gut microbiota exert a central role in the modification of host bacterial action and impact the reproductive efficiency of animals and humans.

关键词： Gut microbiota Host-metabolism Steroid hormone Reproductive function

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Mutualistic fungal endophytes produce phytohormones and organic acids that promote japonica rice plant growth under prolonged heat stress

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第12期16卷 1011-1018页

作者： Muhammad WAQAS Abdul Latif khan Raheem shahzad Ihsan ULLAH Abdur Rahim khan In-Jung LEE School of Applied Biosciences Kyungpook National University Department of Agriculture Extension UoN Chair of Oman's Medicinal Plants & Marine Natural Products University of Nizwa Institute of Biotechnology and Genetic Engineering the University of Agriculture

This study identifies the potential role in heat-stress mitigation of phytohormones and other secondary metabolites produced by the endophytic fungus Paecilomyces formosus LWL1 in japonica rice cultivar Dongjin. The japonica rice was grown in controlled chamber conditions with and without P. formosus LWL1 under no stress （NS） and prolonged heat stress （HS） conditions. Endophytic association under NS and HS conditions significantly improved plant growth attributes, such as plant height, fresh weight, dry weight, and chlorophyll content. Furthermore, P. for- mosus LWL1 protected the rice plants from HS compared with controls, indicated by the lower endogenous level of stress-signaling compounds such as abscisic acid （25.71%） and jasmonic acid （34.57%） and the increase in total protein content （18.76%-33.22%）. Such fungal endophytes may be helpful for sustainable crop production under high environmental temperatures.

关键词： Paecilomyces formosus LWL1 Plant-growth promotion Heat-stress mitigation Phytohormones Organicacids Endophytes

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Effect of angiotensin converting enzyme gene I/D polymorphism in patients with metabolic syndrome in North Indian population

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Chinese Medical Journal 2011年第1期124卷 45-48页

作者： Gaurav Mittal Vibhanshu Gupta shahzad F Haque Anwer S khan Department of Medicine J.N. Medical College Aligarh India

Background Numerous studies have investigated the effect of angiotensin converting enzyme （ACE） gene I/D polymorphism and various cardiovascular risk factors in different populations with varied results. Currently, the association of ACE gene polymorphism with metabolic syndrome has not been studied in North Indians. While studies assessing the effect with polymorphism on each of the components of metabolic syndrome separately are present, data regarding the metabolic syndrome per se are sparse. The present study evaluated the effect of ACE gene I/D polymorphism in patients with metabolic syndrome in North Indian population at a tertiary care centre. Methods Fifty subjects, with thirty cases of metabolic syndrome （NCEP/ATP III guidelines, 2004） and twenty age and gender matched healthy controls were chosen. Detailed history was reviewed and clinical examination of the subjects was carried out. Relevant investigations including blood glucose （fasting and post prandial）, blood urea, serum creatinine and serum lipids were done. DNA of cases and controls was analysed for I/D polymorphism using polymerase chain reaction. Results D/D genotype was more frequent in patients with metabolic syndrome as compared with healthy controls （P 〈0.05）. Systolic blood pressure （SBP） and diastolic blood pressure （DBP） was significantly higher in the D/D genotype than I/D and I/I genotypes （P 〈0.05）. Our study also showed positive association between obesity, fasting blood glucose and ACE gene polymorphism while no association was found with triglycerides and high density lipoprotein cholesterol. The I/I group was significantly associated with waist circumference and fasting blood glucose （P 〈0.05）. Conclusion Our study clearly showed that metabolic syndrome was associated with ACE gene polymorphism. However due to less number of subjects in the study further studies are needed to corroborate our results.

关键词： metabolic syndrome ACE gene polymorphism North Indian

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Bandwidth Efficiency via Adaptive Modulation for WCDMA in Ad hoc Settings

Bandwidth Efficiency via Adaptive Modulation for WCDMA in Ad...

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2010 International Colloquium on Computing,Communication, Control, and Management (CCCM2010)

作者： kashif shahzad Shoab A khan Department of Electrical Engineering College of EME NUST RawalpindiPakistan Department of Computer Engineering College of EME NUST RawalpindiPakistan

This paper proposes the bandwidth efficient scheme that uses higher order constellation when Signal to Noise Ratio (SNR) is *** scheme for WCDMA system is developed in ad hoc settings eliminating any central Node B or base station. The concept behind the paper is that by adaptive change in modulation scheme of the system one can achieve higher data rates within the fixed available *** WCDMA system using BPSK one bit per symbol can be transmitted,but by use of 64QAM scheme one can send six bits per symbol but at higher Signal to Noise ratio(SNR).Hence a trade-off is available between SNR of channel and the modulation schemes deployed. Stanford University Interim(SUI) channels are used to simulate the Multipath fading wireless *** Ratio Combining(MRC) Rake receiver is used in conjunction with chip level equalizer system for enhanced performance in channels with higher order modulation and high delay spread.

关键词： WCDMA Bandwidth Efficiency Adaptive Modulation BPSK QAM

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基于机器学习的L-赖氨酸发酵过程软测量建模和模型预测控制方法研究

基于机器学习的L-赖氨酸发酵过程软测量建模和模型预测控制方法研...

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作者： Muhammad shahzad khan 江苏大学

学位级别：硕士

L-赖氨酸发酵过程是一个复杂非线性、强耦合、大时变系统,为最大限度提升L-赖氨酸的生产效率和产品品质,迫切需要利用先进控制技术对L-赖氨酸发酵过程进行动态调控和实时优化,将其控制在最佳工艺条件下进行生产。然而由于涉及菌种的生... 详细信息

L-赖氨酸发酵过程是一个复杂非线性、强耦合、大时变系统,为最大限度提升L-赖氨酸的生产效率和产品品质,迫切需要利用先进控制技术对L-赖氨酸发酵过程进行动态调控和实时优化,将其控制在最佳工艺条件下进行生产。然而由于涉及菌种的生长繁殖、代谢过程,L-赖氨酸发酵过程存在的复杂特性造成了优化运行控制的困难:(1)L-赖氨酸发酵过程内部机理十分复杂,动力学模型呈高度的非线性,难以建立能够准确描述其菌种生长、代谢过程动力学特征的数学模型;(2)发酵过程的动力学特征参数随反应时间或批次的变化而变化,传统的、以动力学为基础的控制方法已难以满足控制性能要求;(3)反映L-赖氨酸发酵过程品质的菌体浓度、基质浓度、产物浓度等关键参量目前还缺乏有效的在线测量手段,成为制约优化运行控制的瓶颈问题。目前对这些关键参量的检测主要采用离线采样分析的方法,存在较大的测量延时,难以实施实时控制,同时取样过程中发酵液易受杂菌污染,严重影响L-赖氨酸的生产过程。L-赖氨酸发酵过程的优化运行控制主要通过对一些环境参量(如溶氧浓度、p H、温度等)的检测,凭借工人经验和感官进行手动操作,自动化水平低,技术落后,无法满足L-赖氨酸发酵过程优化运行控制的要求,且生产过程中错误和故障不易及时发现,造成原材料的浪费和设备的空转,严重制约着L-赖氨酸产业的规模化、集约化进程,因此,如何克服以上问题带来的缺陷成为L-赖氨酸产业界亟需解决的问题之一。针对L-赖氨酸发酵过程中非线性、多变量、强耦合以及关键参量难以在线检测等特点,本文在国家自然科学基金(41376175)、江苏高校优势学科建设工程项目(PAPD)、镇江市重点研发计划-社会发展项目(SH2020005)的资助下,围绕L-赖氨酸发酵过程关键参量软测量、非线性模型预测控制方法等问题,开展L-赖氨酸发酵过程优化运行控制的研究,本论文的具体研究内容如下:论文提出ICS-MLSSVM混合型多输出软传感器建模方法,并将其应用在L-赖氨酸发酵过程的关键参量软测量中,实现对L-赖氨酸发酵过程关键生化变量(菌体浓度、基质浓度、产物浓度)的在线实时检测。首先,根据L-赖氨酸发酵过程的多输入、多输出特点,构建多输出最小二乘支持向量机回归器(MLSSVM)模型。然后,利用改进的布谷鸟搜索(ICS)优化算法对MLSSVM模型的重要参数(γ,λ,σ)进行优化。最后,利用优化后的模型参数值建立了ICSS-MLSSVM软传感器混合模型,在线实现了L-赖氨酸发酵过程的关键生化变量。仿真结果证实,所提出的回归模型能够准确预测关键生化变量。此外,混合ICS-MLSSVM软传感器模型在预测精度和适应性上均优于基于标准CS(CS-MLSSVM)、粒子群优化算法(PSO-MLSSVM)和遗传算法(GA-MLSSVM)的MLSSVM软传感器模型。本部分提出的软测量模型将应用于第四章模型预测控制系统中。针对L-赖氨酸发酵过程中流加速率难以实时控制的问题,提出了一种非线性模型预测控制(NMPC)方法。首先,基于机器学习算法(最小二乘支持向量机-LSSVM)建立了L-赖氨酸发酵过程非线性模型预测控制模型,将其用于非线性模型预测控制中作为过程模型预测产品浓度,然后,采用灰狼优化(GWO)算法优化LSSVM预测模型的关键参数(惩罚因子和核宽)以提高其预测精度,同时,GWO还解决了非线性模型预测控制中的非凸优化问题(GWO-NMPC),用于计算未来最优输入。最后,结合关键参量软测量模型,将基于GWO的LSSVM预测模型(GWO-LSSVM)和非线性模型预测控制(GWO-NMPC)方法与基于粒子群优化(PSO)的预测模型(PSO-LSSVM)和非线性模型预测控制(PSO-NMPC)方法进行比较,验证其有效性。比较结果表明,与基于P S O的预测控制相比,基于G WO的预测控制的预测精度、适应性、实时跟踪能力、总体误差和控制精度都较好。

关键词： L-赖氨酸发酵机器学习模型预测控制软测量灰狼优化算法最小二乘支持向量机布谷鸟搜索优化

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A discussion on cotton transformation during the last decade (2010–2021);an update on present trends and future prospects

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Journal of Cotton Research 2021年第4期4卷 372-385页

作者： QANDEEL‑E‑ARSH AZHAR Muhammad Tehseen ATIF Rana Muhammad ISRAR Mahwish khan Azeem Iqbal KHALID shahzad RANA Iqrar Ahmad Centre of Agricultural Biochemistry and Biotechnology(CABB) University of AgricultureFaisalabad 38000Pakistan Institute of Molecular Biology and Biotechnology Bahauddin Zakariya UniversityMultan 66000Pakistan School of Agriculture Sciences Zhengzhou UniversityZhengzhou 450000China Department of Plant Breeding and Genetics University of AgricultureFaisalabad 38000Pakistan Center of Advanced Studies in Agriculture and Food Security University of AgricultureFaisalabad 38000Pakistan Punjab Forestry Research Institute GutwalaFaisalabadPakistan Social Security Hospital FaisalabadPakistan

The introduction of genetically modified(GM)cotton in 1996 in the US and its worldwide spread later rejuvenated cotton production in many parts of the *** evolution is continued since then and currently,the 3rd and fourth generation of same GM cotton is grown in many parts of the *** GM cotton introduced in 1996 was simple Bt cotton that expressed a single Cry1Ac gene,the later generation carried multiple Cry genes along with the genes controlling herbicide *** day GM cotton does not only give stable resistance against lepidopteran insects but also facilitates the farmers to spray broad-spectrum herbicides without harming the *** evolution of GM cotton is continued both on the basic and applied side and interventions have been introduced during the last *** the cotton transformation was limited to Cocker strains which are getting possible in many other varieties,*** is successful with both gene gun,and Agrobacterium and inplanta transformation has made it a routine *** from overexpression studies for various purposes including biotic,abiotic,and quality traits,RNAi and genome editing are explored *** this review,we have tried to explore and discuss various interventions for improving transformation protocols,the applications of cotton transformation,and future strategies being developed to get maximum benefits from this technology during the last decade.

关键词： Cotton transformation Overexpression Genome editing Sustainable agriculture RNAi

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Molecular detection of Leishmania species in human and animals from cutaneous leishmaniasis endemic areas of Waziristan, Khyber Pakhtunkhwa, Pakistan

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Asian Pacific Journal of Tropical Medicine 2018年第8期11卷 495-500页

作者： Mubashir Hussain shahzad Munir Abdullah Jalal Taj Ali khan Niaz Muhammad Bahar Ullah Khattak Abdullah khan Irfan Ahmed Zulqarnain Baloch Nawaz Haider Bashir Muhammad Ameen Jamal Kashif Rahim Humaira Mazhar Maira Riaz Noha Watany Vector Borne Diseases Lab Department of Microbiology Kohat University of Science and Technology Kohat Faculty of Plant Protection Yunnan Agricultural University Institute of Biotechnology and Genetic Engineering The University of AgriculturePeshawar Pakistan Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Yunnan Agricultural University College of Veterinary Medicine South China Agricultural University Department of Animal Breeding Genetics and Reproduction Yunnan Agricultural University Beijing Key Laboratory of Genetic Engineering Drug and Biotechnology Institute of Biochemistry and Biotechnology College of Life Sciences Beijing Normal University Vector Biology Research Lab US Naval Medical Research Unit 3

Objectives: To detect Leishmania species in human patients, animal reservoirs and Phlebotomus sandflies in Waziristan, Pakistan. Methods: Tissue smears and aspirates from 448 cutaneous leishmaniasis(CL) suspected patients were analyzed. To sort out role of the reservoir hosts, skin scrapings, spleen and liver samples from 104 rodents were collected. Furthermore, buffy coat samples were obtained from 60 domestic animals. Sandflies were also trapped. All human, animals and sandfly samples were tested by microscopy, kinetoplastic PCR and internal transcribed spacer 1(ITS1) PCR followed by restriction fragment length polymorphism for detection of Leishmania species. Results: An overall prevalence of 3.83% and 5.21% through microscopy and ITS1 PCR respectively was found. However, the statistically non-significant correlation was found between area, gender, and number of lesions. The presence of rodents, sandflies, domestic animals and internally displaced people increased the risk of CL. Using ITS1-PCR-RFLP, Leishmania tropica(L. tropica) was confirmed in 106 samples while 25 of the isolates were diagnosed as Leishmania major(L. major). Similarly, 3/104 rodents were positive for L. major and 14 pools of DNA samples containing Phlebotomus sergenti sandflies were positive for L. tropica. None of samples from domestic animals were positive for leishmaniasis. Conclusions: In the present study, L. tropica and L. major are found to be the main causative agents of CL in study area. Movement of internally displaced people from CL endemic areas presents a risk for nearby CL free areas. To the best of our knowledge, we report for the first time L. major infection in rodents(Rattus rattus) and L. tropica in Phlebotomus sergenti sandflies trapped in Waziristan, Pakistan.

关键词： Leishmania major Rodents Cutaneous leishmaniasis Domestic animals ITS 1 PCR Waziristan

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Non-Maximal Tripartite Entanglement Degradation of Dirac and Scalar Fields in Non-Inertial Frames

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Communications in Theoretical Physics 2014年第3期61卷 281-288页

作者： Salman khan Niaz Ali khan M.K.khan Department of Physics COMSATS Institute of Information Technology Chak Shahzad Department of Physics Quaid-i-Azam University

The π-tangle is used to study the behavior of entanglement of a nonmaximal tripartite state of both Dirac and scMar fields in accelerated frame. For Dirac fields, the degree of degradation with acceleration of both one-tangle of accelerated observer and π-tangle, for the same initial entanglement, is different by just interchanging the values of probability amplitudes. A fraction of both one-tangles and the π-tangle always survives for any choice of acceleration and the degree of initial entanglement. For scalar field, the one-tangle of accelerated observer depends on the choice of values of probability amplitudes and it vanishes in the range of infinite acceleration, whereas for 1r-tangle this is not always true. The dependence of π-tangle on probability amplitudes varies with acceleration. In the lower range of acceleration, its behavior changes by switching between the values of probability amplitudes and for larger values of acceleration this dependence on probability amplitudes vanishes. Interestingly, unlike bipartite entanglement, the degradation of π-tangle against acceleration in the case of sca/ar fields is slower than for Dirac fields.

关键词： tripartite entanglement noninertial frame

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