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Journal of Integrative Agriculture 2019年第2期18卷 460-470页

作者： Shoaib Akhtar LI Gu-cheng Adnan Nazir Amar Razzaq Raza Ullah muhammad Faisal muhammad asad ur rehman naseer muhammad Haseeb Raza College of Economics&Management Huazhong Agricultural UniversityWuhan 430070P.R.China Institute of Agricultural and Resource Economics University of Agriculture FaisalabadFaisalabad 38000Pakistan

Farmers in Pakistan continue to produce maize under various types of risks and adopt several strategies to manage those risks. This study is the first attempt to investigate the factors affecting the concurrent adoption of off-farm income diversification and agricultural credit which the farmers use to manage the risk to maize production. We apply bivariate and multinomial probit approaches to the primary data collected from four districts of Punjab Province in Pakistan. The results show that strong correlations exist between the off-farm diversification and agricultural credit which indicates that the use of one risk management strategy leads to another. The findings demonstrate that education, livestock number, maize farming experience, perceptions of biological risks and risk-averse nature of the growers significantly encourage the adoption of diversification as a risk management tool while farm size inversely affects the adoption of diversification. Similarly, in the adoption equation of credit, maize farming experience, farm size, perceptions of price and biological risks and risk attitude of farmers significantly enhance the chances of adopting agricultural credit to manage farm risks. These findings are important for the relevant stakeholders who seek to offer carefully designed risk minimizing options to the maize farmers.

关键词： maize off-farm diversification credit multinomial probit Pakistan

THREE POINT BOUNDARY VALUE PROBLEMS FOR NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS

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Acta Mathematica Scientia 2011年第4期31卷 1337-1346页

作者： Mujeeb ur rehman Rahmat Ali Khan naseer Ahmad Asif National University of Sciences and Technology (NUST) Centre for Advanced Mathematics and Physics University of Malakand Chakdara Dir(L) Khyber Pakhtunkhawa Pakistan

In this paper, we study existence and uniqueness of solutions to nonlinear three point boundary value problems for fractional differential equation of the type c D δ 0＋ u（t） = f （t, u（t）, c D σ 0＋ u（t））, t ∈ [0, T ], u（0） = αu（η）, u（T ） = βu（η）, where 1 〈 δ 〈 2, 0 〈 σ 〈 1, α, β∈ R, η∈ （0, T ）, αη（1 -β）＋（1-α）（T βη） = 0 and c D δ 0＋ , c D σ 0＋ are the Caputo fractional derivatives. We use Schauder fixed point theorem and contraction mapping principle to obtain existence and uniqueness results. Examples are also included to show the applicability of our results.

关键词： fractional differential equations three point boundary conditions existence and uniqueness results

One-pot Synthesis,Characterization and Crystal Structure Determination of Novel 1,4,5-Trisubstituted 1,2,3-Triazole with Two Conformational Isomers:1-Benzyl-5-((4-methoxyphenyl)ethynyl)-4-phenyl-1H-1,2,3-triazole

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Chinese Journal of Structural Chemistry 2016年第1期35卷 55-60页

作者： AHMED muhammad Naeem YASIN Khawaja Ansar KHAN Bilal Ahmad RIAZ muhammad SADIQ-ur-rehman LO Kong Mun naseer muhammad Moazzam ARSHAD Ifzan IRSHAD muhammad Department of Chemistry The University of Azad Jammu and Kashmir Department of Chemistry University of Malaya Department of Chemistry Quaid-i-Azam University Department of Chemistry University of Poonch Rawalakot Azad Kashmir

The title compound l-benzyl-5-（（4-methoxyphenyl）ethynyl）-4-phenyl-1H-1,2,3-triazole（C24H19N3O） was designed and synthesized using one-pot strategy and structural characterization was done by single-crystal X-ray diffraction,NMR,IR and *** compound was crystallized out from an ethanolic solution in triclinic system,space group P1 with a =9.9038（9）,b = 10.2928（9）,c = 18.8715（19）A°,α = 103.541（6）,β = 90.507（7）,γ = 97.157（7）°,V =1854.2（3） A°3,Z = 4,crystal size（mm） = 0.25 × 0.1 × 0.1 and R（int） = *** asymmetric unit contains two independent *** crystal structure of the title compound is stabilized by intramolecular interactions of types C-H…N and C-H…***,X-ray analysis reveals obvious C-H…π,π-π stacking interactions between two adjacent aromatic ring planes.

关键词： click chemistry trisubstituted triazole alkyne crystal structure C–H…π interactions

Deep Trajectory Classification Model for Congestion Detection in Human Crowds

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Computers, Materials & Continua 2021年第7期68卷 705-725页

作者： Emad Felemban Sultan Daud Khan Atif naseer Faizan ur rehman Saleh Basalamah Department of Computer Engineering College of Computing and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia Department of Computer Science National University of TechnologyIslamabadPakistan Science and Technology Unit Umm Al-Qura UniversityMakkahSaudi Arabia Institute of Consulting Research and Studies Umm Al-Qura UniversityMakkahSaudi Arabia

In high-density gatherings,crowd disasters frequently occur despite all the safety *** detection of congestion in human crowds using automated analysis of video footage can prevent crowd *** work on the prevention of crowd disasters has been based on manual analysis of video *** methods also measure crowd congestion by estimating crowd ***,crowd density alone cannot provide reliable information about *** paper proposes a deep learning framework for automated crowd congestion detection that leverages pedestrian *** proposed framework divided the input video into several temporal *** then extracted dense trajectories from each temporal segment and converted these into a spatio-temporal image without losing information.A classification model based on convolutional neural networks was then trained using spatio-temporal ***,we generated a score map by encoding each point trajectory with its respective class *** this,we obtained the congested regions by employing the non-maximum suppression method on the score ***,we demonstrated the proposed framework’s effectiveness by performing a series of experiments on challenging video sequences.

关键词： Crowd congestion trajectory classification crowd analysis

Empowering Diagnosis: Cutting-Edge Segmentation and Classification in Lung Cancer Analysis

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Computers, Materials & Continua 2024年第6期79卷 4963-4977页

作者： Iftikhar naseer Tehreem Masood Sheeraz Akram Zulfiqar Ali Awais Ahmad Shafiq ur rehman Arfan Jaffar Faculty of Computer Sciences&Information Technology The Superior UniversityLahore54000Pakistan Intelligent Data Visual Computing Research(IDVCR) Lahore54000Pakistan Information System Department College of Computer and Information SciencesImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudi Arabia School of Computer Science and Electronic Engineering(CSEE) University of EssexWivenhoe ParkColchesterCO43SQUK

Lung cancer is a leading cause of global mortality *** detection of pulmonary tumors can significantly enhance the survival rate of ***,various Computer-Aided Diagnostic(CAD)methods have been developed to enhance the detection of pulmonary nodules with high ***,the existing method-ologies cannot obtain a high level of specificity and *** present study introduces a novel model for Lung Cancer Segmentation and Classification(LCSC),which incorporates two improved architectures,namely the improved U-Net architecture and the improved AlexNet *** LCSC model comprises two distinct *** first stage involves the utilization of an improved U-Net architecture to segment candidate nodules extracted from the lung ***,an improved AlexNet architecture is employed to classify lung *** the first stage,the proposed model demonstrates a dice accuracy of 0.855,a precision of 0.933,and a recall of 0.789 for the segmentation of candidate *** suggested improved AlexNet architecture attains 97.06%accuracy,a true positive rate of 96.36%,a true negative rate of 97.77%,a positive predictive value of 97.74%,and a negative predictive value of 96.41%for classifying pulmonary cancer as either benign or *** proposed LCSC model is tested and evaluated employing the publically available dataset furnished by the Lung Image Database Consortium and Image Database Resource Initiative(LIDC-IDRI).This proposed technique exhibits remarkable performance compared to the existing methods by using various evaluation parameters.

关键词： Lung cancer segmentation AlexNet U-Net classification

宝路和满适金种衣剂对玉米生长发育和产量的影响

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宝路和满适金种衣剂对玉米生长发育和产量的影响

作者：纳西（muhammad rehman naseer）吉林大学

学位级别：硕士

本研究于2015和2016年在吉林省长春市吉林大学植物科学学院教学科研试验基地(45°15’N,127°02’E)进行。采用随机区组试验设计,设置宝路包衣(300ml/100kg),满适金包衣(150ml/100kg),和无包衣(对照)三个处理,每处理四次重复,共12个小... 详细信息

本研究于2015和2016年在吉林省长春市吉林大学植物科学学院教学科研试验基地(45°15’N,127°02’E)进行。采用随机区组试验设计,设置宝路包衣(300ml/100kg),满适金包衣(150ml/100kg),和无包衣(对照)三个处理,每处理四次重复,共12个小区。研究宝路和满适金种衣剂包衣对玉米生理代谢和产量的影响。结论如下:1、宝路和满适金包衣处理后,玉米叶片SPAD值和叶绿素含量均显著高于对照。2、宝路和满适金包衣处理后,株高分别为323.025厘米和275.783厘米,宝路比对照高3.16%,满适金比对照低6.81%;穗位高分别为114.183厘米和115.961厘米,宝路比对照低4.7%,满适金比对照低3.22%。3、2015年,宝路和满适金包衣后,玉米产量分别比对照高出8.25%和7.96%,2016年分别比对照高出14.21%和13.14%,年度间产量差异显著。4、本研究表明,宝路和满适金包衣处理后,可促进玉米生长,提高玉米产量。

关键词：玉米种衣剂生长发育叶绿素产量

Trace-Rare-Gas Optical Emission Spectroscopy of Nitrogen Plasma Generated at a Frequency of 13.56 MHz

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Plasma Science and Technology 2011年第2期13卷 208-212页

作者： N.U.rehman F.U.KHAN S.naseer G.MurTAZA S.S.HUSSAIN I.AHMAD M.ZAKAULLAH Department of Physics COMSATS Institute of Information Technology Department of Physics Gomal University Department of Physics Peshawar University Department of Physics Quaid-i-Azam University

Optical emission spectroscopic measurement of trace rare gas is carried out to determine the density of nitrogen （N） atom, in a nitrogen plasma, as a function of filling pressure and RF power applied. 2% of argon, used as an actinometer, is mixed with nitrogen. In order to normalize the changes in the excitation cross section and electron energy distribution function at different operational conditions, the Ar-I emission line at 419.83 nm is used, which is of nearly the same excitation efficiency coefficient as that of the nitrogen emission line at 493.51 nm. It is observed that the emission intensity of the selected argon and atomic nitrogen lines increases with both pressure and RF power, as does the nitrogen atomic density.

关键词： optical actinometry N atomic density EEDF RF plasma