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中国传统乳制品中乳杆菌的益生菌潜力评估

食品安全质量检测学报 2020年第21期11卷 8047-8053页

作者： muhammad shahid-riaz-rajoka 赵丽青深圳大学化学与环境工程学院食品科学工程系深圳518060

目的评估从中国传统乳制品中分离出的9株乳杆菌的功能及其益生菌潜力。方法从中国传统乳制品中分离纯化得到乳杆菌菌株,测试其益生菌潜力,如溶血活性和抗氧化活性等。结果所有分离的乳杆菌均可耐受低pH值(pH 2.0、2.5和3.0)和高胆盐条件... 详细信息

目的评估从中国传统乳制品中分离出的9株乳杆菌的功能及其益生菌潜力。方法从中国传统乳制品中分离纯化得到乳杆菌菌株,测试其益生菌潜力,如溶血活性和抗氧化活性等。结果所有分离的乳杆菌均可耐受低pH值(pH 2.0、2.5和3.0)和高胆盐条件(0.3%、0.5%和1%)。分离的乳杆菌对10种抗生素的敏感性,的测试结果表明,所有分离株对万古霉素均没有抗性,此外大多数分离株对青霉素,氨苄青霉素,链霉素和四环素具有抗性。所有乳杆菌对HT-29细胞具有优异的粘附能力,其值介于10.4%~39.0%之间,并且对DPPH自由基和超氧阴离子自由基具有出色的抗氧化活性。结论从中国乳制品中分离出的乳杆菌具有作为各种产品中益生菌的潜力。

关键词：乳杆菌中国传统乳制品益生菌潜力

A new auxiliary information based cumulative sum median control chart for location monitoring

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Frontiers of Information Technology & Electronic Engineering 2019年第4期20卷 554-570页

作者： shahid HUSSAIN Li-xin SONG Shabbir AHMAD muhammad riaz School of Mathematical Sciences Dalian University of Technology Department of Mathematics COMSATS Institute of Information Technology Department of Mathematics and Statistics King Fahad University of Petroleum and Minerals

Control charts are commonly used tools in statistical process control for the detection of shifts in process parameters. Shewhart-type charts are efficient for large shift values, whereas cumulative sum(CUSUM) charts are effective in detecting medium and small shifts. Control chart use commonly assumes that data are free of outliers and parameters are known or correctly estimated based on an in-control process. In practice, these assumptions are not often true because some processes occasionally have outliers. Monitoring the location parameter is usually based on mean charts, which are seriously affected by violations of these assumptions. In this paper we propose several CUSUM median control charts based on auxiliary variables, and offer comparisons with their corresponding mean control charts. To monitor the location parameter, we examined the performance of mean and median control charts in the presence and absence of outliers. Both symmetric and non-symmetric processes were studied to examine the properties of the proposed control charts to monitor the location parameter using CUSUM control charts. We used different run length measures to study in-control and out-of-control performances of CUSUM charts. Results revealed that our proposed control charts perform much better than the traditional charts in the presence of outliers. A real application of our study was provided using data on concrete compressive strength as it relates to the quality of cement manufacturing.

关键词： Average run length Auxiliary information CUSUM control charts Location parameter Median control charts

Evolution of Coulomb failure stress in Sulaiman Lobe,Pakistan,and its implications for seismic hazard assessment

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Earth and Planetary Physics 2023年第2期7卷 282-294页

作者： Aiza Amjad muhammad shahid riaz Urooj Shakir muhammad Younis Khan muhammad Ali Shah Bahria School of Engineering and Applied Sciences H-11 CampusBahriaBahria UniversityIslamabadPakistan Centre for Earthquake Studies National Centre for PhysicsIslamabadPakistan National Centre of Excellence in Geology University of PeshawarPeshawarPakistan GIS and Space Applications in Geosciences(G-SAG)Lab National Center of GIS and Space Applications(NCGSA)IslamabadPakistan

In this research work,we present the evolution of Coulomb failure stress(CFS)in the Sulaiman Lobe and its implications for seismic hazard *** Chaman transform fault,~1,000 km long,is the major active fault that marks the western boundary between Pakistan and Afghanistan on the Indian *** date,few studies have been conducted to unveil the interactions among earthquakes and the implications of these interactions for seismic hazard assessment in the *** thoroughly investigated the published and online catalog to construct a sequence of major earthquakes that occurred in this region during the *** final earthquake sequence was composed of 15 earthquakes of M_(w)≥6.0,beginning with the 1888 *** used the stress-triggering theory to numerically simulate the evolution of CFS caused by these *** numerical results revealed that 8 out of 15earthquakes were triggered by the preceding *** earthquakes in 1908,1910,1935,1966,and 1997 were rather independent earthquakes in this *** the epicenters of the 1975a and 1975b earthquakes were in the stress shadow zone,the partial rupture segments of both these earthquakes were in high-CFS *** CFS induced by the 1935 earthquake was notable,as it later triggered the 2008 ***,our results revealed that the northern segment of the Chaman Fault,the southern segment of the Ghazaband Fault,and the northwestern segment of the Urghargai Fault demonstrated a high change in CFS that could trigger seismicity in these *** necessary arrangements must therefore be made to mitigate any possible seismic hazards in the region.

关键词： Sulaiman Thrust Sulaiman Lobe earthquake triggering Coulomb failure stress seismic hazard assessment

Benchmarking Performance of Document Level Classification and Topic Modeling

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Computers, Materials & Continua 2022年第4期71卷 125-141页

作者： muhammad shahid Bhatti Azmat Ullah Rohaya Latip Abid Sohail Anum riaz Rohail Hassan Department of Computer Science COMSATS University IslamabadLahorePakistan Department of Communication Technology and Network Faculty of Computer ScienceUniversiti Putra MalaysiaSelangor43400Malaysia Othman Yeop Abdullah Graduate School of Business(OYAGSB) Universiti Utara Malaysia(UUM)Kuala Lumpur50300Malaysia

Text classification of low resource language is always a trivial and challenging *** paper discusses the process of Urdu news classification and Urdu documents *** is one of the most famous spoken languages in *** implementation of computational methodologies for text classification has increased over ***,Urdu language has not much experimented with research,it does not have readily available datasets,which turn out to be the primary reason behind limited research and applying the latest methodologies to the *** overcome these obstacles,a mediumsized dataset having six categories is collected from authentic Pakistani news *** is a rich but complex *** processing can be challenging for Urdu due to its complex features as compared to other *** frequency-inverse document frequency(TFIDF)based term weighting scheme for extracting features,chi-2 for selecting essential features,and Linear discriminant analysis(LDA)for dimensionality reduction have been *** matrix and cosine similarity measure have been used to identify similar documents in a collection and find the semantic meaning of words in a document FastText model has been *** training-test split evaluation methodology is used for this experimentation,which includes 70%for training data and 30%for testing ***-of-the-art machine learning and deep dense neural network approaches for Urdu news classification have been ***,we trained Multinomial Naïve Bayes,XGBoost,Bagging,and Deep dense neural *** and deep dense neural network outperformed the other *** experimental results show that deep dense achieves 92.0%mean f1 score,and Bagging 95.0%f1 score.

关键词： Deep neural network machine learning natural language processing TFIDF sparse matrix cosine similarity classification linear discriminant analysis gradient boosting

SwCS: Section-Wise Content Similarity Approach to Exploit Scientific Big Data

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Computers, Materials & Continua 2021年第4期67卷 877-894页

作者： Kashif Irshad muhammad Tanvir Afzal Sanam Shahla Rizvi Abdul shahid Rabia riaz Tae-Sun Chung Department of Computer Science Capital University of Science and TechnologyIslamabadPakistan Department of Computer Science NAMAL InstituteMianwali42250Pakistan Raptor Interactive(Pty)Ltd. Eco BoulevardWitch Hazel AveCenturion0157South Africa Institute of Computing Kohat University of Science and TechnologyPakistan Department of CS&IT University of Azad Jammu and KashmirMuzaffarabad13100Pakistan Department of Artificial Intelligence Ajou UniversityKorea

The growing collection of scientific data in various web repositories is referred to as Scientific Big Data,as it fulfills the four“V’s”of Big Data—volume,variety,velocity,and *** phenomenon has created new opportunities for startups;for instance,the extraction of pertinent research papers from enormous knowledge repositories using certain innovative methods has become an important task for researchers and ***,the content of the papers are compared to list the relevant papers from a *** conventional method results in a long list of papers that is often impossible to interpret ***,the need for a novel approach that intelligently utilizes the available data is ***,the primary element of the scientific knowledge base is a research article,which consists of various logical sections such as the Abstract,Introduction,Related Work,Methodology,Results,and ***,this study utilizes these logical sections of research articles,because they hold significant potential in finding relevant *** this study,comprehensive experiments were performed to determine the role of the logical sections-based terms indexing method in improving the quality of results(i.e.,retrieving relevant papers).Therefore,we proposed,implemented,and evaluated the logical sections-based content comparisons method to address the research objective with a standard method of indexing *** section-based approach outperformed the standard content-based approach in identifying relevant documents from all classified topics of computer ***,the proposed approach extracted 14%more relevant results from the entire *** the experimental results suggested that employing a finer content similarity technique improved the quality of results,the proposed approach has led the foundation of knowledge-based startups.

关键词： Scientific big data ACM classification term indexing content similarity cosine similarity

Reduced bit low power VLSI architectures for motion estimation

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Journal of Systems Engineering and Electronics 2013年第3期24卷 382-399页

作者： Shahrukh Agha shahid Khan Shahzad Malik Raja riaz Department of Electrical Engineering COMSATS Institute of Information Technology

Low power and real time very large scale integration （VLSI） architectures of motion estimation （ME） algorithms for mobile devices and applications are presented. The power reduction is achieved by devising a novel correction recovery mechanism based on algorithms which allow the use of reduced bit sum of absolute difference （RBSAD） metric for calculating matching error and conversion to full resolution sum of absolute difference （SAD） metric whenever necessary. Parallel and pipelined architectures for high throughput of full search ME corresponding to both the full resolution SAD and the generalized RBSAD algorithm are synthe- sized using Xilinx Synthesis Tools （XST）, where the ME designs based on reduced bit （RB） algorithms demonstrate the reduction in power consumption up to 45% and/or the reduction in area up to 38%.

关键词： motion estimation (ME) very large scale integration (VLSI) reduced bit sum of absolute difference (RBSAD).

Strategies to enhance cottonseed oil contents and reshape fatty acid profile employing different breeding and genetic engineering approaches

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Journal of Integrative Agriculture 2019年第10期18卷 2205-2218页

作者： Iram Sharif Jehanzeb Farooq shahid Munir Chohan Sadaf Saleem riaz Ahmad Kainth Abid Mahmood Ghulam Sarwar Cotton Research Station Faisalabad 38000Pakistan Ayub Agricultural Research Institute Faisalabad 38000Pakistan

Cottonseed oil is the valuable byproduct extracted after seed cotton processing for lint. It confers a huge contribution to total vegetable oil production and ranked the 2nd to meet global edible oil requirements. Over centuries, breeders mainly focused to improve lint production and fiber quality. Now attention has been given to improve the cottonseed oil percentage, its functional and nutritional properties. However, these efforts are less than other major oilseed crops which left cottonseed oil market behind in term of consumer demand and kept cott on seed oil industry at vuln erable positi on. Con siderable progress has been made to alter the relative percentage of fatty acid composition still intensified efforts have been required to meet the global oilseed demand. The objective of this review is to explore the cotton germplasm variation for seed oil carrying potential, its utilization in suitable breeding programs, seed oil biosynthetic pathways, major genes, and QTLs linked to quantity and quality enhancement of oil and deployment of modern genomic tools, viz., gene silencing and transgenic development to ameliorate its nutritional properties.

关键词： biosynthesis edible oil gene silencing oil quality oleic acid stearic acid

Spatiotemporal Monitoring for Deforestation and Forest Degradation Activities in Selected Areas of Khyber Pakhtunkhwa (KPK)

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International Journal of Geosciences 2016年第10期7卷 1191-1207页

作者： Saif ur Rehman Khalid Mobushir riaz Khan muhammad Usman muhammad Waqar Yasin muhammad shahid Iqbal Department of Geo-Informatics Pir Mehr Ali Shah Arid Agriculture University Rawalpindi Pakistan

The global significance of forest ecosystems requires precise determination of the amount of carbon stored in different forest ecosystems. Regular monitoring of forests can aid in designing efficient climate change control strategies at national and global scale specially in reducing emissions from deforestation and degradation strategies. This research is designed to focus on determining deforestation of study area from 2001 to 2011 using Remote Sensing (RS) and Geographic Information System (GIS) techniques. This research provided rate and amount of degradation of forests in the study area and was quite helpful in formulating a strategy to earn carbon credits consistently and, therefore, will help in the uplifting of the standards of local population.

关键词： Deforestation Degradation Carbon Credits Climate Change

Microwave-assisted pre-ionization experiments on GLAST-Ⅲ

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Plasma Science and Technology 2021年第8期23卷 53-61页

作者： riaz KHAN Sehrish SHAKIR Ahmad ALI muhammad Khawar AYUB Moazzam NAZIR Zia UR-REHMAN Abdul QAYYUM muhammad Athar NAVEED Sarfraz AHMAD Zahoor AHMAD Rafaqat ALI shahid HUSSAIN Pakistan Tokamak Plasma Research Institute P.O.NiloreIslamabad 44000Pakistan Theoretical Physics Division PINSTECHP.O.NiloreIslamabad 44000Pakistan

GLAss Spherical Tokamak(GLAST-Ⅲ)is a spherical tokamak with an insulating vacuum vessel that has a unique single-passage capability for incident *** this work,electron cyclotron resonance heating(ECRH)-assisted plasma pre-ionization in GLAST-Ⅲis explored for three radio-frequency(RF)polarizations(the O-,X-,and M-modes)at different toroidal-field(TF)strengths and filled gas *** optimum hydrogen pressure is identified for efficient plasma pre-ionization.A comparison of the plasma pre-ionizations initiated by the O-,X-,and M-modes shows prominent differences in the breakdown time,location,and wave *** the case of O-mode polarization,microwave absorption occurs for a relatively shorter duration,resulting in a bell-shaped electron-temperature(Te)temporal *** absorption is dominant in the case of the X-mode,leading to a broader Te temporal *** M-mode discharge contains features of both the X-and *** plasma pre-ionization is achieved in the X-mode polarization for the intermediate TF strengths(with a central toroidal magnetic field B0=0.075 T).Traces of the electron-number density show a similar tendency,as revealed by *** results suggest that the X-mode is the best candidate for efficient plasma pre-ionization at low filled gas pressures(10-2 Pa)in small tokamaks.

关键词： GLAST-Ⅲ microwave ECRH pre-ionization polarization