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Exploiting Structural Similarities to Classify Citations

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Computers, Materials & Continua 2021年第2期66卷 1195-1214页

作者： muhammad Saboor Ahmed muhammad Tanvir Afzal Capital University of Science and Technology IslamabadPakistan

Citations play an important role in the scientific community by assisting in measuring multifarious policies like the impact of journals,researchers,institutions,and *** cite papers for different reasons,such as extending previous work,comparing their study with the state-of-the-art,providing background of the field,*** recent years,researchers have tried to conceptualize all citations into two broad categories,important and *** a categorization is very important to enhance scientific output in multiple ways,for instance,(1)Helping a researcher in identifying meaningful citations from a list of 100 to 1000 citations(2)Enhancing the impact factor calculation mechanism by more strongly weighting important citations,and(3)Improving researcher,institutional,and university rankings by only considering important *** of these uses depend upon correctly identifying the important citations from the list of all citations in a *** date,researchers have utilized many features to classify citations into these broad categories:cue phrases,in-text citation counts,and metadata features,***,contemporary approaches are based on identification of in-text citation counts,mapping sections onto the Introduction,Methods,Results,and Discussion(IMRAD)structure,identifying cue phrases,*** such features accurately is a challenging task and is normally conducted manually,with the accuracy of citation classification demonstrated in terms of these manually extracted *** research proposes to examine the content of the cited and citing pair to identify important citing papers for each cited *** content similarity approach was adopted from research paper recommendation ***,a novel section-based content similarity approach is also *** results show that solely using the abstract of the cited and citing papers can achieve similar accuracy as the stateof-the-art *** makes the propose

关键词： Section-wise similarity citation classification content similarity important citation

Molecular dynamics study of the mechanical characteristics of Ni/Cu bilayer using nanoindentation

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Chinese Physics B 2012年第12期21卷 389-395页

作者： muhammad Imran Fayyaz Hussain muhammad Rashid S.A.Ahmad Department of Physics Simulation LaboratoryThe Islamia University of Bahawalpur Department of Physics National University of Singapore

In the present work, a three-dimensional molecular dynamics simulation is carried out to perform the nanoindentation experiment on Ni single crystal. The substrate indenter system is modeled using hybrid interatomic potentials including the many-body potential embedded atom method （EAM）, and two-body morse potential. To simulate the in- dentation process, a spherical indenter （diameter = 80A, 1A=0.1 nm） is chosen. The results show that the mechanical behaviour of a monolithic Ni is not affected by crystalline orientation. To elucidate the effect of a heterogeneous interface, three bilayer interface systems are constructed, namely Ni（100）/Cu（111）, Ni（110）/Cu（111）, and Ni（111）/Cu（111）. The simulations along these systems clearly describe that mechanical behaviour directly depends on the lattice mismatch. The interface with the smaller mismatch between the specified crystal planes is proved to be harder and vice versa. To describe the relationship between film thickness and interface effect, we choose various values of film thickness ranging from 20 A to 50 A to perform the nanoindentation experiment. It is observed that the interface is significant only for the relatively small thickness of film and the separation between interface and the indenter tip. It is shown that with the increase in film thickness, the mechanical behaviour of the film shifts more toward that of monolithic material.

关键词： nanoindentation bilayer molecular dynamics thin film

Structure Elucidation and Biological Screening of Bis(4-{[(E)-(2-Hydroxybenzylidene)amino]methyl}-cyclohexane-carboxylato-O)-triaqua-cadmium

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Chinese Journal of Structural Chemistry 2018年第6期37卷 871-877页

作者： muhammad Danish SABA Akbar muhammad Nawaz Tahir muhammad Naeem Ahmed RABIA Ayub Butt muhammad Asam Raza muhammad Ashfaq Department of Chemistry University of Gujrat Department of Physics University of Sargodha Department of Chemistry University of Azad Jammu and Kashmir

Using a bidentate ligand, a Schiff base 4-（{[（Z）-（2-hydroxyphenyl）methyldene]amino}methyl）cyclohexanecarboxylic acid, complex I（ML2, where M = Cd（Ⅱ）） was synthesized and characterized by IR spectroscopy and X-ray crystallography. It crystallizes in monoclinic system, space group C2/c, M_r = 685.04, 0.34 mm × 0.26 mm × 0.14 mm, a = 54.050（3）, b = 6.1220（3）, c = 9.5081（5） A, β = 90.229（2）°, Z = 4, C_（30） H_（40） CdN_2 O_9 and V = 3146.2（3） A^3. Complex I was screened for its bactericidal activity against four bacterial strains Chromohalobactersalexigens, Chromohalobacterisraelensis, Halomonashalofila and Halomonassalina and fungicidal activity against Aspergillusnigerand Aspergillusflavus. Antimicrobial activity results showed that the synthesized complex displayed good anti-fungal activity against two fungal strains. It was found to be inactive against four different bacterial strains analyzed and was negative for bactericidal effect.

关键词： Schiff base tranexamic acid Cd XRD fungicidal activity bactericidal activity

New Horizon in stabilization of single atoms on metal-oxide supports for CO_(2) reduction

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Nano Materials Science 2021年第4期3卷 368-389页

作者： muhammad Abbas muhammad Aurang Zeb Gul Sial Department of Chemistry and Biochemistry The University of Texas at Dallas800 West Campbell RoadRichardsonTX75080USA Multi-scale Porous Materials Centre Institute of Advanced Interdisciplinary StudiesSchool of Chemistry and Chemical EngineeringChongqing UniversityChonging400044PR China

Elecrochemical CO_(2) reduction is a promising route to convert CO_(2) into the value added chemicals,and to control the increasing accumulation of 002 in the *** CO_(2) molecule is stable and chemically inert,so a highly efficient electrocatalyst is required for CO_(2) *** single atoms with metal oxdde support is a new fronder in CO_(2) *** supported single atoms contain disperse isolated atoms with an appropriate support maxcimize the atom efficiency of metals for boosting the catalytc *** this review,we had discussed state-of-the-art research on the synthestis of single atoms supported on the metal oxdde for boosting catalytic activity for CO_(2) reduction and special emphasis is placed on the influence of single atoms supported on metal oxdde on the CO_(2) ***,we had discussed the challenges,and opportunities for paving the development of single atoms with metal support and their application in ecrocatalytic CO_(2) reduction.

关键词： Single atoms Metal-oxides support CO_(2)reduction

Dynamic characteristics of nanoindentation in Ni:A molecular dynamics simulation study

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Chinese Physics B 2012年第11期21卷 367-372页

作者： muhammad Imran Fayyaz Hussain muhammad Rashid S.A.Ahmad Department of Physics Simulation Lab Islamia University of Bahawalpur 63100Pakistan Department of Physics National University of Singapore 117542Singapore

In this work, three-dimensional molecular dynamics simulation is carried out to elucidate the nanoindentation behaviour of single crystal Ni. The substrate indenter system is modelled using hybrid interatomic potentials including the manybody potential （embedded atom method） and two-body Morse potential. The spherical indenter is chosen, and the simulation is performed for different loading rates from 10 m/s to 200 m/s. Results show that the maximum indentation load and hardness of the system increase with the increase of velocity. The effect of indenter size on the nanoindentation response is also analysed. It is found that the maximum indentation load is higher for the large indenter whereas the hardness is higher for the smaller indenter. Dynamic nanoindentation is carried out to investigate the behaviour of Ni substrate to multiple loading-unloading cycles. It is observed from the results that the increase in the number of loading unloading cycles reduces the maximum load and hardness of the Ni substrate. This is attributed to the decrease in recovery force due to defects and dislocations produced after each indentation cycle.

关键词： indentation nanocrystalline loading-unloading dislocation

Lexsegment Ideals Are Sequentially Cohen-Macaulay

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Algebra Colloquium 2014年第4期21卷 551-560页

作者： muhammad Ishaq Abdus Salam School of Mathematical Sciences GC University Lahore Pakistan

The associated primes of an arbitrary lexsegment ideal I C S = K[x1,..., xn] are determined. As application it is shown that S/I is a pretty clean module, therefore S/I is sequentially Cohen-Mazaulay and satisfies Sta... 详细信息

关键词： lexsegment ideals primary decomposition pretty clean modules sequentiallyCohen-Macaulay ideals Stanley depth

Resolvability in Circulant Graphs

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Acta Mathematica Sinica,English Series 2012年第9期28卷 1851-1864页

作者： muhammad SALMAN Imran JAVAID muhammad Anwar CHAUDHRY Center for Advanced Studies in Pure and Applied Mathematics Bahauddin Zakariya University

A set W of the vertices of a connected graph G is called a resolving set for G if for every two distinct vertices u, v E V（G） there is a vertex w E W such that d（u, w） ≠ d（v, w）. A resolving set of minimum cardinality is called a metric basis for G and the number of vertices in a metric basis is called the metric dimension of G, denoted by dim（G）. For a vertex u of G and a subset S of V（G）, the distance between u and S is the number minses d（u,s）. A k-partition II = {$1,$2,..., Sk} of V（G） is called a resolving partition if for every two distinct vertices u, v E V（G） there is a set Si in H such that d（u, Si） ≠ d（v, Si）. The minimum k for which there is a resolving k-partition of V（G） is called the partition dimension of G, denoted by pd（G）. The circulant graph is a graph with vertex set Zn, an additive group of integers modulo n, and two vertices labeled i and j adjacent if and only if i - j （rood n） E C, where C C Zn has the property that C = -C and 0 ￠ C. The circulant graph is denoted by Xn,△ where A = ｜C｜. In this paper, we study the metric dimension of a family of circulant graphs Xn,3 with connection set C = {1, 3, n - 1} and prove that dim（Xn,3） is independent of choice of n by showing that dim（Xn,a） = {3 for all n ≡0 （mod 4）,4 for all n≡2 （mod4）.We also study the partition dimension of a family of circulant graphs Xm,4 with connection set C = {±1, ±2} and prove that pd（Xn,4） is independent of choice of n and show that pd（X5,4） = 5 and pd（Xn,a） ={ 3 for all odd n≥9,4 for all even n≥6 and n=7.

关键词： Circulant graphs metric dimension partition dimension

Ex-Situ Cultivation of Medicinal Plant Species in High Altitudes at Swat,Pakistan

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云南植物研究 2005年第6期27卷 676-684页

作者： Hassan Sher David Melick zaheer-ud-Ud-Khan Department of Botany Government Jahanzeb College Swat NWFP Pakistan Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China Department of Botany G. C and University of Lahore Pakistan

An ex-situ experiment was conducted to evaluate the growth performance of six medicinal species (Bergenia ciliata,Valeriana jatamansi,Dioscorea deltoidea,Paeonia emodi,Polygonum amplexicaule and Viola serpense) from upper Swat,*** were conducted at four different locations in the upper Swat valley at altitudes ranging from 1200 to 1900 *** objectives were:1) to determine the suitability of ex-situ cultivation of different medicinal species,and;2) to assess the economic geasibility of growing medicinal plants in the area.A highest mean survival of 80.7% across all locations was observed for Viola serpense,followed by 58.7% for Valeriana *** remaining four species exhibited very poor survival rates,although Polygonum amplexicaule,did show encouraging signs of growth and flowered,before experiencing high mortality rates late in the *** generally seemed to enhance the degree of sprouting for all species except Viola ***,the productive yield of *** was certainly not reduced,but rather slightly enhanced in the higher altitude ***,cultivation of only two of the investigated species,Valeriana jatamansi and Viola serpense,appeared successful and potentially economically viable under farmland conditions at upper Swat.

关键词：药用植物巴基斯坦种植技术宽叶甘松蓼属

Enhancing PDF Malware Detection through Logistic Model Trees

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Computers, Materials & Continua 2024年第3期78卷 3645-3663页

作者： muhammad Binsawad Department of Information Systems King Abdulaziz UniversityP.O.Box 80217Jeddah21589Saudi Arabia

Malware is an ever-present and dynamic threat to networks and computer systems in cybersecurity,and because of its complexity and evasiveness,it is challenging to identify using traditional signature-based detection *** study article discusses the growing danger to cybersecurity that malware hidden in PDF files poses,highlighting the shortcomings of conventional detection techniques and the difficulties presented by adversarial *** article presents a new method that improves PDF virus detection by using document analysis and a Logistic Model *** a dataset from the Canadian Institute for Cybersecurity,a comparative analysis is carried out with well-known machine learning models,such as Credal Decision Tree,Naïve Bayes,Average One Dependency Estimator,Locally Weighted Learning,and Stochastic Gradient *** traditional structural and JavaScript-centric PDF analysis,the research makes a substantial contribution to the area by boosting precision and resilience in malware *** use of Logistic Model Tree,a thorough feature selection approach,and increased focus on PDF file attributes all contribute to the efficiency of PDF virus *** paper emphasizes Logistic Model Tree’s critical role in tackling increasing cybersecurity threats and proposes a viable answer to practical issues in the *** results reveal that the Logistic Model Tree is superior,with improved accuracy of 97.46%when compared to benchmark models,demonstrating its usefulness in addressing the ever-changing threat landscape.

关键词： Malware detection PDF files logistic model tree feature selection cybersecurity