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Sludge granulation and efficiency of phase separator in UASB reactor treating combined industrial effluent

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Journal of Environmental Sciences 2007年第5期19卷 553-558页

作者： Abdullah Yasar Nasir Ahmad Muhammad Nawaz Chaudhry aamir amanat ali khan Directorate of Research and Development University of the Punjab41-Kamran BlockAllama Iqbal TownLahore-Pakistan.

Sludge granulation and the effect of gas-liquid-solid separator （GLSS） design on the efficiency of upflow anaerobic sludge blanket （UASB） and upflow anaerobic sludge filter （UASF） reactors, operating at HRTs ranging from 3 to 12 h was investigated. VSS/TS ratio gradually increased in both the reactors with increasing sludge age （from 0.5 to more than 0.7 for UASB reactor and 0.012 to 0.043 for UASF reactor）. X-Ray diffraction analysis of the UASF sludge showed the presence of expanding clays revealing its additional absorption capability. Fuoraphyllite and albite precipitation related to excellular polymers of the microbial shell structure, showed the extended growth of microorganisms during sludge granulation. A gradual decrease （82%-69%） in COD removal with decreasing HRT was apparent in UASF reactor. In case of UASB reactor, this decrease was marginal because addition of GLSS device significantly improved （14%-20%） the overall efficiency of the UASB reactor. GLSS enhanced the efficiency of the UASB reactor by increasing the settleability of suspended particles and accelerating the coagulation of colloidal particles due to the velocity gradient.

关键词： sludge granulation gas-liquid-solid (GLS) phase separator UASB microbial growth

An Implementation of Multiscale Line Detection and Mathematical Morphology for Efficient and Precise Blood Vessel Segmentation in Fundus Images

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Computers, Materials & Continua 2024年第5期79卷 2565-2583页

作者： Syed Ayaz ali Shah aamir Shahzad Musaed Alhussein Chuan Meng Goh Khursheed Aurangzeb Tong Boon Tang Muhammad Awais Department of Electrical and Computer Engineering COMSATS University IslamabadAbbottabad CampusAbbottabad22060Pakistan Department of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Faculty of Information and Communication Technology University Tunku Abdul RehmanKampar CampusKampar31900Malaysia Centre for Intelligent Signal and Imaging Research University Teknologi PETRONASBandar Seri IskandarPerak32610Malaysia School of Computing Sciences University of East AngliaNorwichNR47TJUK

Diagnosing various diseases such as glaucoma,age-related macular degeneration,cardiovascular conditions,and diabetic retinopathy involves segmenting retinal blood *** task is particularly challenging when dealing with color fundus images due to issues like non-uniformillumination,low contrast,and variations in vessel appearance,especially in the presence of different ***,the speed of the retinal vessel segmentation system is of utmost *** the surge of now available big data,the speed of the algorithm becomes increasingly important,carrying almost equivalent weightage to the accuracy of the *** address these challenges,we present a novel approach for retinal vessel segmentation,leveraging efficient and robust techniques based on multiscale line detection and mathematical *** algorithm’s performance is evaluated on two publicly available datasets,namely the Digital Retinal Images for Vessel Extraction dataset(DRIVE)and the Structure Analysis of Retina(STARE)*** experimental results demonstrate the effectiveness of our method,withmean accuracy values of 0.9467 forDRIVE and 0.9535 for STARE datasets,aswell as sensitivity values of 0.6952 forDRIVE and 0.6809 for STARE ***,our algorithmexhibits competitive performance with state-of-the-art ***,it operates at an average speed of 3.73 s per image for DRIVE and 3.75 s for STARE *** is worth noting that these results were achieved using Matlab scripts containing multiple *** suggests that the processing time can be further reduced by replacing loops with *** the proposed algorithm can be deployed in real time *** summary,our proposed system strikes a fine balance between swift computation and accuracy that is on par with the best available methods in the field.

关键词： Line detector vessel detection localization mathematical morphology image processing

A two-branch multiscale spectral-spatial feature extraction network for hyperspectral image classification

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Journal of Information and Intelligence 2024年第3期2卷 224-235页

作者： aamir ali Caihong Mu Zeyu Zhang Jian Zhu Yi Liu Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education Collaborative Innovation Center of Quantum Information of Shaanxi ProvinceSchool of Artificial IntelligenceXidian UniversityXi'an 710071China school of Electronic Engineering Xidian UniversityXi'an 710071China

In the field of hyperspectral image(HSI)classification in remote sensing,the combination of spectral and spatial features has gained considerable *** addition,the multiscale feature extraction approach is very effective at improving the classification accuracy for HSIs,capable of capturing a large amount of intrinsic ***,some existing methods for extracting spectral and spatial features can only generate low-level features and consider limited scales,leading to low classification results,and dense-connection based methods enhance the feature propagation at the cost of high model *** paper presents a two-branch multiscale spectral-spatial feature extraction network(TBMSSN)for HSI *** design the mul-tiscale spectral feature extraction(MSEFE)and multiscale spatial feature extraction(MSAFE)modules to improve the feature representation,and a spatial attention mechanism is applied in the MSAFE module to reduce redundant information and enhance the representation of spatial fea-tures at *** we densely connect series of MSEFE or MSAFE modules respectively in a two-branch framework to balance efficiency and effectiveness,alleviate the vanishing-gradient problem and strengthen the feature *** evaluate the effectiveness of the proposed method,the experimental results were carried out on bench mark HsI datasets,demonstrating that TBMSSN obtained higher classification accuracy compared with several state-of-the-art methods.

关键词： Hyperspectral image classification Multiscale spectral-spatial information Two-branch architecture

Left bundle branch pacing vs biventricular pacing in heart failure patients with left bundle branch block:A systematic review and meta-analysis

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World Journal of Cardiology 2024年第1期16卷 40-48页

作者： Farah Yasmin Abdul Moeed Rohan Kumar Ochani Hamna Raheel Malik ali Ehtsham Awan Ayesha Liaquat Arisha Saleem Muhammad aamir Nael Hawwa Salim Surani Department of Internal Medicine Yale University School of MedicineNew HavenCT 06511United States Department of Medicine Dow University of Health ScienceKarachi 74200SindhPakistan Department of Medicine SUNNY Upstate Medical UniversitySyracuseNY 13210United States Department of Cardiovascular Medicine Lehigh Valley Heart and Vascular InstituteAllentownPA 18105United States Department of Medicine Cleveland ClinicClevelandOH 44195United States Department of Medicine&Pharmacology Texas A&M UniversityCollege StationTX 77843United States

BACKGROUND Left bundle branch pacing(LBBP)is a novel pacing modality of cardiac resynchronization therapy(CRT)that achieves more physiologic native ventricular activation than biventricular pacing(BiVP).AIM To explore the validity of electromechanical resynchronization,clinical and echocardiographic response of *** Systematic review and Meta-analysis were conducted in accordance with the standard guidelines as mentioned in detail in the methodology *** In our analysis,the success rate of LBBP-CRT was determined to be 91.1%.LBBP CRT significantly shortened QRS duration,with significant improvement in echocardiographic parameters,including left ventricular ejection fraction,left ventricular end-diastolic diameter and left ventricular end-systolic diameter in comparison with *** A significant reduction in New York Heart Association class and B-type natriuretic peptide levels was also observed in the LBBP-CRT group vs BiVP-CRT ***,the LBBP-CRT cohort had a reduced pacing threshold at follow-up as compared to BiVP-CRT.

关键词： Left bundle branch pacing Biventricular pacing QRS duration Left ventricular ejection fraction Heart failure

Fingerprint matching,spoof and liveness detection:classification and literature review

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Frontiers of Computer Science 2021年第1期15卷 179-196页

作者： Syed Farooq ali Muhammad aamir khan Ahmed Sohail ASLAM Department of Software Engineering University of Management and TechnologyLahore 54770Pakistan Department of Informatics and Systems University of Management and TechnologyLahore 54770Pakistan Department of Computer Science University of Management and TechnologyLahore 54770Pakistan

Fingerprint matching,spoof mitigation and liveness detection are the trendiest biometric techniques,mostly because of their stability through life,uniqueness and their least risk of *** recent decade,several techniques are presented to address these challenges over well-known *** study provides a comprehensive review on the fingerprint algorithms and techniques which have been published in the last few *** divides the research on fingerprint into nine different approaches including feature based,fuzzy logic,holistic,image enhancement,latent,conventional machine learning,deep learning,template matching and miscellaneous *** these,deep learning approach has outperformed other approaches and gained significant attention for future *** reviewing fingerprint literature,it is historically divided into four eras based on 106 referred papers and their cumulative citations.

关键词： computer society template matching fingerprint recognition survey deep learning machine learning

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叶面施硒对燕麦籽粒营养品质的影响

作物杂志 2024年

作者：张丽娜杨文平苏苗张之玄李军辉 aamir ali 陈杰高志强杨珍平山西农业大学农学院/黄土高原特色作物优质高效生产省部共建协同创新中心华北理工大学生命科学学院

为探究叶面施硒（Se）对燕麦籽粒硒积累和营养品质的强化作用，以坝莜6号，坝莜12号，白燕2号3个燕麦品种为研究对象设置田间试验，于扬花期叶面喷施不同浓度(12 g/hm2，Se1；36 g/hm2，Se2)的硒营养液(SeO32-)，同时以不喷硒的处理作... 详细信息

为探究叶面施硒（Se）对燕麦籽粒硒积累和营养品质的强化作用，以坝莜6号，坝莜12号，白燕2号3个燕麦品种为研究对象设置田间试验，于扬花期叶面喷施不同浓度(12 g/hm2，Se1；36 g/hm2，Se2)的硒营养液(SeO32-)，同时以不喷硒的处理作为对照，通过测定灌浆期籽粒硒含量以及成熟期营养品质（氨基酸和脂肪酸），分析叶面施硒对燕麦灌浆期籽粒硒积累及成熟期营养品质的强化作用。结果表明，随灌浆时间延长，燕麦籽粒硒含量呈先升高后降低的趋势。其中，成熟期施硒各处理籽粒硒含量均在0.10～0.30 mg/kg的国家标准范围内，显著高于不施硒的对照，且在Se2处理下籽粒硒含量最高为0.16 mg/kg。与不施加硒肥的对照相较，施硒明显提高了3个品种燕麦籽粒中总氨基酸的含量：低氨基酸品种坝莜6号的总氨基酸含量增加了2.13%～10.53%，高氨基酸品种白燕2号的总氨基酸含量增加了7.44%～9.37%。与不施硒的对照相比，施硒促进了3个燕麦品种籽粒中不同脂肪酸的含量，且品种类型、硒肥浓度及二者的互作效应的影响均达到极显著水平（P＜0.01）。说明叶面喷施硒肥能显著促进燕麦籽粒硒积累，强化籽粒氨基酸和不饱和脂肪酸的含量，其中以Se2处理的效果更好。

关键词：燕麦硒肥氨基酸脂肪酸

Computing and Implementation of a Controlled Telepresence Robot

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Intelligent Automation & Soft Computing 2023年第8期37卷 1569-1585页

作者： ali A.Altalbe aamir Shahzad Muhammad Nasir khan Prince Sattam Bin Abdulaziz University Al-Kharj11942Saudi Arabia Faculty of Computing and Information Technology King Abdulaziz UniversityJeddah21589Saudi Arabia Department of Mechanical Engineering The University of LahoreLahore54000Pakistan Department of Electrical Engineering GC University LahoreLahore54000Pakistan

The development of human-robot interaction has been continu-ously increasing for the last *** this development,it has become simpler and safe interactions using a remotely controlled telepresence robot in an insecure and hazardous *** audio-video communication connection or data transmission stability has already been well handled by fast-growing technologies such as 5G and ***,the design of the phys-ical parameters,e.g.,maneuverability,controllability,and stability,still needs ***,the paper aims to present a systematic,controlled design and implementation of a telepresence mobile *** primary focus of this paper is to perform the computational analysis and experimental implementa-tion design with sophisticated position control,which autonomously controls the robot’s position and speed when reaching an obstacle.A system model and a position controller design are developed with root locus *** design robot results are verified experimentally,showing the robot’s agreement and control in the desired *** robot was tested by considering various parameters:driving straight ahead,right turn,self-localization and complex *** results prove that the proposed approach is flexible and adaptable and gives a better *** experimental results show that the proposed method significantly minimizes the obstacle hits.

关键词： Computing telepresence healthcare system position controller mobile robot

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“石”刻准备着:方寸间感悟中国文化之美

神州学人 2024年第8期 46-47页

作者： [巴基斯坦]阿里赵阳平(指导) 不详

来中国留学之前,我在中国能源建设集团天津电力建设有限公司驻巴基斯坦海外公司做机械工程师。和中国同事一起工作的这些年,他们的专业、勤奋、团结等让我对他们的国家充满好奇,在家人的鼓励和朋友的推荐下,2021年,我以优异的成绩成功... 详细信息

来中国留学之前,我在中国能源建设集团天津电力建设有限公司驻巴基斯坦海外公司做机械工程师。和中国同事一起工作的这些年,他们的专业、勤奋、团结等让我对他们的国家充满好奇,在家人的鼓励和朋友的推荐下,2021年,我以优异的成绩成功申请到了中国政府奖学金,获得了赴中国地质大学(武汉)攻读机械工程专业硕士的机会。

关键词：机械工程师能源建设中国政府奖学金文化之美中国地质大学(武汉) 工程专业硕士巴基斯坦

Thermophoresis and concentration effects in a fourth grade peristaltic flow with convective walls

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Journal of Central South University 2017年第7期24卷 1654-1662页

作者： ali aamir Asghar S Awais M Department of Mathematics COMSATS Institute of Information TechnologyAttock 43600Pakistan Department of Mathematics COMSATS Institute of Information TechnologyIslamabad 44000Pakistan Department of Mathematics King Abdulaziz UniversityJeddah 21432Saudi Arabia

In this investigation,we have studied the peristaltic fluid flow in an asymmetric channel with convective *** grade fluid model has been utilized in view of the fact that the results of all other differential type models can be deduced as the special *** effects of heat and mass transfer are *** thermophoresis effects occur in the energy *** heat and mass boundary conditions have been given special *** wave length and low Reynolds number approximations are utilized for the *** analytic solutions for the velocity,temperature and concentration profiles are calculated using perturbation technique and elaborated in the form of graphical observations for various physical quantities.

关键词： fourth grade fluid convective boundary conditions pumping and trapping peristalsis