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Evaluation of the fishery status for King Soldier Bream Argyrops spinifer in Pakistan using the software CEDA and ASPIC

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Chinese Journal of Oceanology and Limnology 2015年第4期33卷 966-973页

作者： Aamir Mahmood memon 刘群 Khadim Hussain memon Wazir Ali BALOCH asfandyar memon Abdul BASET College of Fisheries Ocean University of China Sindh Fisheries Department Marine Fisheries Department Fish Harbor west wharf Karachi 74000 Pakistan Department of Fresh Water Biology and Fisheries University of Sindh Department of Economics Management and Quantitative Methods Via Conservatorio7 Universita Degli Studi Di Milano

Catch and effort data were analyzed to estimate the maximum sustainable yield （MSY） of King Soldier Bream, Argyrops spinifer （Forsskal, 1775, Family： Sparidae）, and to evaluate the present status of the fish stocks exploited in Pakistani waters. The catch and effort data for the 25-years period 1985-2009 were analyzed using two computer software packages, CEDA （catch and effort data analysis） and ASPIC （a surplus production model incorporating covariates）. The maximum catch of 3 458 t was observed in 1988 and the minimum catch of 1 324 t in 2005, while the average annual catch ofA. spinifer over the 25 years was 2 500 t. The surplus production models of Fox, Schaefer, and Pella Tomlinson under three error assumptions of normal, log-normal and gamma are in the CEDA package and the two surplus models of Fox and logistic are in the ASPIC package. In CEDA, the MSY was estimated by applying the initial proportion （IP） of 0.8, because the starting catch was approximately 80% of the maximum catch. Except for gamma, because gamma showed maximization failures, the estimated results of MSY using CEDA with the Fox surplus production model and two error assumptions, were 1 692.08 t （R^2=0.572） and 1 694.09 t （R^2=0.606）, respectively, and from the Schaefer and the Pella Tomlinson models with two error assumptions were 2 390.95 t （R^2=0.563）, and 2 380.06 t （R^2=0.605）, respectively. The MSY estimated by the Fox model was conservatively compared to the Schaefer and Pella Tomlinson models. The MSY values from Schaefer and Pella Tomlinson models were the same. The computed values of MSY using the ASPIC computer software program with the two surplus production models of Fox and logistic were 1 498 t （R^2=0.917）, and 2 488 t （R^2=0.897） respectively. The estimated values of MSY using CEDA were about 1 700-2 400 t and the values from ASPIC were 1 500-2 500 t. The estimates output by the CEDA and the ASPIC packages indicate that the stock is overfished, and needs some effective manage

关键词： stock assessment Argyrops spinifer maximum sustainable yield catch and effort data analysis (CEDA) a surplus production model incorporating covariates (ASPIC) Pakistan

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基于原位酶谱技术镉污染土壤青葙根际酶活性空间分布特征研究

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土壤通报 2024年第4期55卷 1137-1142页

作者：刘泽蕙刘杰舒毅赖才星蒋旭升 asfandyar Shahab 俞果桂林理工大学广西环境污染控制理论与技术重点实验室广西桂林541006 清华大学环境学院北京100084 桂林理工大学广西岩溶地区水污染控制与用水安全保障协同创新中心广西桂林541006

【目的】为探明土壤镉污染对超富集植物青葙根际酶活性空间分布特征的影响。【方法】基于土壤酶谱技术,对镉污染土壤和非污染土壤中青葙根际β-葡萄糖苷酶、酸性磷酸酶分布情况进行原位高分辨分析。【结果】β-葡萄糖苷酶、酸性磷酸酶... 详细信息

【目的】为探明土壤镉污染对超富集植物青葙根际酶活性空间分布特征的影响。【方法】基于土壤酶谱技术,对镉污染土壤和非污染土壤中青葙根际β-葡萄糖苷酶、酸性磷酸酶分布情况进行原位高分辨分析。【结果】β-葡萄糖苷酶、酸性磷酸酶活性较高的热点区域都集中在青葙根系分布的区域,且在根尖处浓度较高。在污染土壤和非污染土壤中,青葙根部中心位置β-葡萄糖苷酶和酸性磷酸酶活性灰度值都显著高于距离根中心2 mm处酶活性灰度值。镉污染土壤青葙根部中心位置β-葡萄糖苷酶和酸性磷酸酶活性灰度值相较于非污染土壤,分别降低了5%和3%。【结论】青葙根际土壤酶活性的空间分布具有显著的异质性,与根系分布密切相关,且土壤镉污染显著抑制了β-葡萄糖苷酶和酸性磷酸酶的活性。

关键词：土壤酶谱青葙镉污染酶活性空间分布

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Hydrochemical characteristics and water quality assessment for drinking and agricultural purposes in District Jacobabad,Lower Indus Plain,Pakistan

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International Journal of Agricultural and Biological Engineering 2018年第2期11卷 115-121页

作者： asfandyar Shahab Shihua Qi Muhammad Zaheer Audil Rashid Muhammad Afnan Talib Umer Ashraf College of Environmental Science and Engineering Guilin University of TechnologyGuilinGuangxi 541004China School of Environmental Studies China University of GeosciencesWuhan430074China Department of Environmental Sciences PMAS Arid Agriculture UniversityRawalpindiPakistan Institute of Geophysics and Geomatics China University of GeosciencesWuhan430074China

Undeniably water is of utmost importance while considering basic *** investigation emphasized on the hydrochemical evaluation and drinking water quality assessment in District Jacobabad located in lower Indus plain,*** world's largest irrigation system emerged from Indus Basin,which is underlain by well transmissive aquifer resulting in higher water *** supply schemes with their water sources from ground water and surface water provide piped water for drinking purpose to the *** samples were collected from all the forty eight supply schemes of which thirty two were found *** parameters were compared with World Health Organization(WHO)and Pakistan Water Quality Standards but adversely substantial samples were found ***,bicarbonate and nitrate met the standard safe limits while values for EC,TDS,hardness,cations and anions exceeded the limits in numerous *** and ArcGIS softwares were used for statistical analysis and spatial distribution of *** facies were developed and suitability assessment of water resources was examined for agricultural *** ground water type was classified as Na-HCO3 type with high salinity and it required treatment prior to *** proposed research exhibited the probable drinking water contamination sources and it demanded instant actions to further protect the valuable drinking water resources in District Jacobabad.

关键词： water quality assessment water supply schemes drinking and agriculture arsenic ArcGIS Pakistan

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Baseline Isolated Printed Text Image Database for Pashto Script Recognition

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Intelligent Automation & Soft Computing 2023年第7期37卷 875-885页

作者： Arfa Siddiqu Abdul Basit Waheed Noor Muhammad asfandyar Khan M.Saeed H.Kakar Azam Khan Department of Computer Science&Information Technology University of BalochistanQuetta87300Pakistan

The optical character recognition for the right to left and cursive languages such as Arabic is challenging and received little attention from researchers in the past compared to the other Latin ***,the absence of a standard publicly available dataset for several low-resource lan-guages,including the Pashto language remained a hurdle in the advancement of language *** that,a clean dataset is the fundamental and core requirement of character recognition,this research begins with dataset generation and aims at a system capable of complete language *** in view the complete and full autonomous recognition of the cursive Pashto *** first achievement of this research is a clean and standard dataset for the isolated characters of the Pashto *** this paper,a database of isolated Pashto characters for forty four alphabets using various font styles has been *** order to overcome the font style shortage,the graphical software Inkscape has been used to generate sufficient image data samples for each *** dataset has been pre-processed and reduced in dimensions to 32×32 pixels,and further converted into the binary format with a black background and white text so that it resembles the Modified National Institute of Standards and Technology(MNIST)*** benchmark database is publicly available for further research on the standard GitHub and Kaggle database servers both in pixel and Comma Separated Values(CSV)formats.

关键词： Text-image database optical character recognition(OCR) pashto isolated characters visual recognition autonomous language understanding deep learning convolutional neural network(CNN)

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Channel aware receiver for next generation wireless communication system

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Journal of Central South University 2021年第7期28卷 2131-2139页

作者： MUHAMMAD Asim asfandyar Khan JAVED Iqbal Bangash ABDULLAH Khan Department of Computer Science and Information Technology ICS/ITFMCSThe University of AgriculturePeshawarPakistan

We consider an iterative phase synchronization scheme based on maximum a posteriori probability *** classical approaches,the phase noise estimation model considers one sample per symbol at the channel and ***,information theoretic studies suggested use of more than one sample per symbol at the channel and receiver for achieving higher *** this article,a soft-information aided iterative receiver is derived,which uses off-the-shelf blocks for detection and demodulation by keeping the complexity of the receiver *** consider here two samples per symbols at the channel and receiver in a pragmatic *** is shown that phase noise estimation can be significantly improved at the expense of modest processing *** results are presented for low-density parity check coded quadrature amplitude *** results show a significant performance improvement for strong phase noise values compared to classical receiver approaches.

关键词： phase noise channel iterative receiver multi-sample LDPC coded modulations

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Performance Analysis of Intelligent Neural-Based Deep Learning System on Rank Images Classification

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Computer Systems Science & Engineering 2023年第11期47卷 2219-2239页

作者： Muhammad Hameed Siddiqi asfandyar Khan Muhammad Bilal Khan Abdullah Khan Madallah Alruwaili Saad Alanazi College of Computer and Information Sciences Jouf UniversitySakakaAljouf73211Kingdom of Saudi Arabia Institute of Computer Science and Information Technology ICS/IT FMCSUniversity of AgriculturePeshawar25000Pakistan

The use of the internet is increasing all over the world on a daily basis in the last two *** increase in the internet causes many sexual crimes,such as sexual misuse,domestic violence,and child *** research has been done for pornographic image detection and *** of the used models used machine learning techniques and deep learning models which show less accuracy,while the deep learning model ware used for classification and detection performed better as compared to machine ***,this research evaluates the performance analysis of intelligent neural-based deep learning models which are based on Convolution neural network(CNN),Visual geometry group(VGG-16),VGG-14,and Residual Network(ResNet-50)with the expanded dataset,trained using transfer learning approaches applied in the fully connected layer for datasets to classify rank(Pornographic ***)classification in *** simulation result shows that VGG-16 performed better than the used model in this study without augmented *** VGG-16 model with augmented data reached a training and validation accuracy of 0.97,0.94 with a loss of 0.070,*** precision,recall,and f-measure values for explicit and non-explicit images are(0.94,0.94,0.94)and(0.94,0.94,0.94).Similarly,The VGG-14 model with augmented data reached a training and validation accuracy of 0.98,0.96 with a loss of 0.059,*** f-measure,recall,and precision values for explicit and non-explicit images are(0.98,0.98,0.98)and(0.98,0.98,0.98).The CNN model with augmented data reached a training and validation accuracy of 0.776&0.78 with losses of 0.48&*** f-measure,recall,and precision values for explicit and non-explicit images are(0.80,0.80,0.80)and(0.78,0.79,0.78).The ResNet-50 model with expanded data reached with training accuracy of 0.89 with a loss of 0.389 and 0.86 of validation accuracy and a loss of *** f-measure,recall,and precision values for explicit and non-explicit

关键词： VGG-16 VGG-14 pornography detection expansion ResNet-50 convolution neural network(CNN) machine learning

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Updates on therapies for chronic prostatitis/chronic pelvic pain syndrome

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World Journal of Pharmacology 2015年第1期4卷 1-16页

作者： asfandyar Khan Adam B Murphy Department of Urology Northwestern University Feinberg School of Medicine

Prostatitis comprises of a group of syndromes that affect almost 50% of men at least once in their lifetime and makeup the majority of visits to the Urology *** much debate, it has been divided into four distinct categories by National Institutes of Health namely(1) acute bacterial prostatitis;(2) chronic bacterial prostatitis;(3) chronic prostatitis/chronic pelvic pain syndrome(CP/CPPS) which is further divided into inflammatory and non-inflammatory CP/CPPS; and(4)asymptomatic inflammatory prostatitis. CP/CPPS has been a cause of great concern for both patients and physicians because of the lack of presence of thoroughinformation about the etiological factors along with the difficult-to-treat nature of the syndrome. For the presented manuscript an extensive search on PubM ed was conducted for CP/CPPS aimed to present an updated review on the evaluation and treatment options available for patients with CP/CPPS. Several diagnostic criteria's have been established to diagnose CP/CPPS, with prostatic/pelvic pain for at least 3 mo being the major classifying symptom along with the presence of lower urinary tract symptoms and/or ejaculatory pain. Diagnostic tests can help differentiate CP/CPPS from other syndromes that come under the heading of prostatitis by ruling out active urinary tract infection and/or prostatic infection with uropathogen by performing urine cultures, Meares-Stamey Four Glass Test, Preand Post-Massage Two Glass Test. Asymptomatic inflammatory prostatitis is confirmed through prostate biopsy done for elevated serum prostate-specific antigen levels or abnormal digital rectal examination. Researchers have been unable to link a single etiological factor to the pathogenesis of CP/CPPS, instead a cluster of potential etiologies including atypical bacterial or nanobacterial infection, autoimmunity, neurological dysfunction and pelvic floor muscle dysfunction are most commonly implicated. Initially monotherapy with anti-biotics and alpha adrenergi

关键词： Chronic prostatitis Antibiotics Myofascial trigger point Pelvic biofeedback Chronic pelvic pain syndrome Phytotherapy Nanobacteria Dysfunctional voiding Acupuncture

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A Health Monitoring System Using IoT-Based Android Mobile Application

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Computer Systems Science & Engineering 2023年第11期47卷 2293-2311页

作者： Madallah Alruwaili Muhammad Hameed Siddiqi Kamran Farid Muhammad Azad Saad Alanazi asfandyar Khan Abdullah Khan College of Computer and Information Sciences Jouf UniversitySakakaAl-Jouf73211Kingdom of Saudi Arabia Institute of Computer Science and Information Technology The University of Agriculture PeshawarPeshawar25000Pakistan

Numerous types of research on healthcare monitoring systems have been conducted for calculating heart rate,ECG,nasal/oral airflow,temperature,light sensor,and fall detection *** researchers have done different work in the field of health monitoring with sensor *** researchers used built-in apps,such as some used a small number of parameters,while some other studies used more than one microcontroller and used senders and receivers among the microcontrollers to communicate,and outdated tools for study *** no efficient,cheap,and updated work is proposed in the field of sensor-based health monitoring ***,this study developed an android-based mobile system that can remotely monitor electrocardiograms(ECGs),pulse oximetry,heart rate,and body *** microcontroller’s Wi-Fi device is used to manage wireless data *** findings of the patient are saved on the Firebase server for further usage in the mobile *** performance of the proposed device is tested on ten numbers of different patients age-wise in terms of beats per minute(BPM),ECG,Temperature,and *** system uses temperature,pulse,ECG,blood pressure,and eye blink *** device makes the usage of a tiny pulse sensor that has been designed to provide an accurate and optimal readout of the pulse rate and a temperature sensor is also *** the help of an MCU,our system measures the pulse rate in beats per minute(bpm),blood oxygen level temperature measurements,and ECG readings and communicates this information to the Firebase *** check the performance of the proposed system first,the BPM parameter was checked on the cardiac ***,the proposed model is tested on different patients *** simulation result shows that the BPM reading is not much different than the BPM of the cardiac *** to the simulation findings,the proposed model achieved the best performance as compared to commercially available

关键词： ICUs DS18B20 sensors SpO2 AD8232 sensors ECGs Internet of Things

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镍铁氧体@活性炭复合材料去除六价铬的表征、性能及机制

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环境科学 2023年第5期44卷 2622-2634页

作者：张华李荣华陈金雄曾鸿鹄黄海艺 asfandyar Shahab 桂林理工大学广西环境污染控制理论与技术重点实验室桂林541006 桂林理工大学广西岩溶地区水污染控制与用水安全保障协同创新中心桂林541006

采用化学共沉淀法将镍铁氧体(NiFe_(2)O_(4))负载到活性炭,制备出一种磁性吸附剂镍铁氧体@活性炭(NiFe_(2)O_(4)@AC),并将其用于吸附废水中的Cr(Ⅵ).研究了吸附剂吸附Cr(Ⅵ)的影响因素、吸附动力学和吸附等温线.结果表明,在温度为25℃... 详细信息

采用化学共沉淀法将镍铁氧体(NiFe_(2)O_(4))负载到活性炭,制备出一种磁性吸附剂镍铁氧体@活性炭(NiFe_(2)O_(4)@AC),并将其用于吸附废水中的Cr(Ⅵ).研究了吸附剂吸附Cr(Ⅵ)的影响因素、吸附动力学和吸附等温线.结果表明,在温度为25℃、pH为2、Cr(Ⅵ)初始浓度为150 mg·L^(-1)、活性炭投加量为0.1 g、吸附时间为720 min时,NiFe_(2)O_(4)@AC吸附Cr(Ⅵ)的去除率达到96.92%,吸附量达到72.62 mg·g^(-1).实验数据符合准二级动力学和Langmuir模型,表明其吸附过程是一个单层的化学吸附过程.热力学研究证实,温度升高有利于Cr(Ⅵ)在NiFe_(2)O_(4)@AC上的吸附,该吸附过程是自发和吸热反应.NiFe_(2)O_(4)@AC吸附机制主要是通过络合作用和静电吸引来吸附Cr(Ⅵ),同时,外加磁场可从溶液中分离,具有良好的应用前景.

关键词：镍铁氧体(NiFe_(2)O_(4)) 磁性活性炭吸附铬(Cr) 吸附机制

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高锰酸钾改性桉木生物炭对Pb(Ⅱ)的吸附特性

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环境科学 2021年第11期42卷 5440-5449页

作者：莫贞林曾鸿鹄林华 asfandyar Shahab 石清亮张华桂林理工大学环境科学与工程学院广西环境污染控制理论与技术重点实验室桂林541006 桂林理工大学环境科学与工程学院广西岩溶地区水污染控制与用水安全保障协同创新中心桂林541006 广西环境污染控制理论与技术重点实验室科教结合科技创新基地桂林541006

以桉木为原料,使用高锰酸钾对桉木生物炭(BC)进行改性,制备改性生物炭(KBC).对其进行表征,并进行了水溶液中Pb(Ⅱ)的静态吸附实验,探究了溶液pH、吸附剂投加量、吸附时间、温度和初始浓度对Pb(Ⅱ)的吸附效果影响.结果表明,最佳吸附反应p... 详细信息

以桉木为原料,使用高锰酸钾对桉木生物炭(BC)进行改性,制备改性生物炭(KBC).对其进行表征,并进行了水溶液中Pb(Ⅱ)的静态吸附实验,探究了溶液pH、吸附剂投加量、吸附时间、温度和初始浓度对Pb(Ⅱ)的吸附效果影响.结果表明,最佳吸附反应pH为5,吸附在6 h达到饱和,当温度为25℃,Pb(Ⅱ)的初始浓度为100 mg·L^(-1),吸附剂投加量为0.06 g时,KBC对Pb(Ⅱ)的最大吸附量为83.059 mg·g^(-1),去除率为99.67%.KBC对Pb(Ⅱ)的吸附遵循二级动力学模型和Langmuir等温吸附模型,其是发生在均匀表面的单层吸附.采用BET、SEM-EDS、XRD、FT-IR和XPS对吸附剂进行表征分析,发现吸附机制主要是KBC含氧和KBC含锰基团通过络合作用和沉淀作用来吸附Pb(Ⅱ),以及在吸附过程中生物炭表面会形成—O—Pb—O—双齿配合物.因此,高锰酸钾改性BC可以作为一种很好的Pb(Ⅱ)吸附剂.

关键词：高锰酸钾改性桉木生物炭吸附 Pb(Ⅱ)

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