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      • KCI등재

        A Cross-Platform Malware Variant Classification based on Image Representation

        ( Hamad Naeem ),( Bing Guo ),( Farhan Ullah ),( Muhammad Rashid Naeem ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.7

        Recent internet development is helping malware researchers to generate malicious code variants through automated tools. Due to this reason, the number of malicious variants is increasing day by day. Consequently, the performance improvement in malware analysis is the critical requirement to stop the rapid expansion of malware. The existing research proved that the similarities among malware variants could be used for detection and family classification. In this paper, a Cross-Platform Malware Variant Classification System (CP-MVCS) proposed that converted malware binary into a grayscale image. Further, malicious features extracted from the grayscale image through Combined SIFT-GIST Malware (CSGM) description. Later, these features used to identify the relevant family of malware variant. CP-MVCS reduced computational time and improved classification accuracy by using CSGM feature description along machine learning classification. The experiment performed on four publically available datasets of Windows OS and Android OS. The experimental results showed that the computation time and malware classification accuracy of CP-MVCS was higher than traditional methods. The evaluation also showed that CP-MVCS was not only differentiated families of malware variants but also identified both malware and benign samples in mix fashion efficiently.

      • KCI등재

        Prediction of the Current-Voltage Characteristics and the Bipolar Resistive Switching Mechanism in Polymer-Based Sandwiched Structures

        Muhammad Naeem Awais,Muhammad Naeem Shehzad 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.75 No.5

        The prediction of the current-voltage (IV) characteristics of resistive switching devices has remained a challenge before their physical realization. This research work addresses the prediction of the IV characteristics and the bipolar switching mechanism of polymer-based resistive switches by examining their structures before their fabrication. The research was carried out through an analytical study of the device structure, thereby correlating the predicted IV curve to the \textit{in-situ} IV characteristics of the device. Different types of the device structures were considered, depending upon the work function of the top and the bottom electrodes and the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) levels of the sandwiched layer. We concluded that the defects/traps within the sandwiched layer lead to the interface effect being the dominant switching mechanism driving the polymer-based resistive switches. Furthermore, we also found that the devices following the interface effect are driven from trap-limited space-charge-limited current (SCLC) conduction to trap-free SCLC conduction as their current conduction mechanisms.

      • KCI등재

        Whole-exome sequencing identifies a novel LRAT mutation underlying retinitis punctata albescens in a consanguineous Pakistani family

        Muhammad Naeem,전미연,Obaid Ur Rahman,Fazal Rahim,Muhammad Naeem,강창수 한국유전학회 2015 Genes & Genomics Vol.37 No.10

        Retinitis punctata albescens (RPA) is an ocular disease characterized by decreased visual acuity, night blindness, atropic maculopathy, and pigmentary retinopathy. Multiple genes have been linked to the etiology of RPA. In this study, we investigated the genetic causes of RPA in a consanguineous Pakistani family with multiple affected individuals. We performed whole-exome sequencing of seven family members, and screened variants co-segregating with RPA in recessive fashion. Bioinformatic and in silico analyses revealed that all affected individuals were homozygous for a novel mutation that substitutes glycine with arginine at position 66 (c.196 G[C) in exon 2 of the lecithin retinol acyltransferase (LRAT) that converts all-trans retinol to 11-cis retinal in the retinal pigment epithelium. This mutation was not present in 217 unrelated Pakistani control subjects nor in the Exome Aggregation Consortium database containing exome data from 60,638 individuals worldwide. Mutations in the LRAT gene were previously found from the patients with Leber congenital amaurosis and retinal dystrophy, however, we report first time that disruptions in this gene are also associated with RPA.

      • KCI등재

        Adsorption Kinetics of Acid Red on Activated Carbon Web Prepared from Acrylic Fibrous Waste

        M. Salman Naeem,Saima Javed,Vijay Baheti,Jakub Wiener,M. Usman Javed,Syed Zameer Ul Hassan,Adnan Mazari,Jawad Naeem 한국섬유공학회 2018 Fibers and polymers Vol.19 No.1

        In this work, activated carbon (AC) web was prepared using physical activation under the layer of charcoal in high temperature furnace. The carbonization of acrylic fibrous waste was performed at different temperatures (800 ℃, 1000 ℃, and 1200 ℃) with heating rate of 300 oC/h and at different holding time. At 1200 ℃, the heating rate of 300 ℃/h and no holding time provided better results of surface area as compared to carbonization at 800 ℃ and 1000 ℃. The activated carbonweb (AC) prepared at 1200 oC was used for removal of Acid Red 27 dye from aqueous media by varying different parameters like initial concentration of dye, stirring speed, adsorbent dosage, and pH. The results were evaluated using non-linear forms of Langmuir and Freundlich isotherms. The Freundlich isotherm was found to describe the results more effectively because of non-homogenous surface of activated carbon web. Further, the kinetics of adsorption was examined using linear and nonlinearforms of pseudo 1st order and pseudo 2nd order.

      • KCI등재

        Visual Saliency Detection Based on color Frequency Features under Bayesian framework

        ( Naeem Ayoub ),( Zhenguo Gao ),( Danjie Chen ),( Rachida Tobji ),( Nianmin Yao ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.2

        Saliency detection in neurobiology is a vehement research during the last few years, several cognitive and interactive systems are designed to simulate saliency model (an attentional mechanism, which focuses on the worthiest part in the image). In this paper, a bottom up saliency detection model is proposed by taking into account the color and luminance frequency features of RGB, CIE L*a*b* color space of the image. We employ low-level features of image and apply band pass filter to estimate and highlight salient region. We compute the likelihood probability by applying Bayesian framework at pixels. Experiments on two publically available datasets (MSRA and SED2) show that our saliency model performs better as compared to the ten state of the art algorithms by achieving higher precision, better recall and F-Measure.

      • SCIESCOPUSKCI등재

        Cytotec Induced Embryotoxicity in Developing Mus musculus

        Naeem, Khadija,Ahmad, Naveed,Asmatullah, Asmatullah Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.10

        The study was carried out to assess the developmental abnormalities induced by Cytotec in mice during intrauterine life. Pregnant mice were exposed to a single dose of 0, 0.02, 0.04, 0.06, 0.08 and $0.1{\mu}g$/g BW on day 8 of gestation. Fetuses were recovered on day 18 of gestation. These fetuses were subjected to morphological and morphometric studies. Morphological studies showed abnormalities like anophthalmia, microophthalmia, micromelia and syndactyly. In addition to these, resorptions were also encountered in the higher dose groups. Morphometric analysis showed an overall reduction in body weight, crown rump length, brain and eye circumference, pinna and snout size, length of fore and hind limb and tail size with a significant difference (p<0.001) compared to controls. The outcomes of histological studies revealed some brain defects like hydrocephaly, enlarged third ventricle and undifferentiated ectoneural cells and abnormalities of the heart included right auricle thrombosis and degeneration of trabecular zone.

      • Vulnerability of East Asian bumblebee species to future climate and land cover changes

        Naeem, Muhammad,Liu, Meijuan,Huang, Jiaxing,Ding, Guiling,Potapov, Grigory,Jung, Chuleui,An, Jiandong Elsevier 2019 Agriculture, ecosystems & environment Vol.277 No.-

        <P><B>Abstract</B></P> <P>Pollinators play a key role in agricultural and natural ecosystems, but their biodiversity is highly vulnerable to the impact of environmental changes. Here, we evaluated the distributional responses of 29 bumblebee species endemic to East Asia to future (2050s and 2070s) climate and land cover changes, and 17–27 (59–93 %) of the species exhibited range contraction. A decrease in species richness from 25 to 19 species in the highest region of central China was also detected due to range shifts of 17 km to 574 km. Furthermore, one (3.44%), three to five (10–17 %), and two to eight (7–28 %) of the 29 bumblebee species were predicted to become critically endangered, endangered and vulnerable in the future, respectively. Our study highlights the strong impact of environmental changes on species distributions, and we suggest strategies for the conservation of vulnerable species that include protecting the regions of high species richness and the most dominant land covers within the current range to mitigate the threat of environmental changes.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Pollinators are under threat from climate and climate-induced land cover changes. </LI> <LI> Distributional responses were predicted for 29 bumblebee species in East Asia. </LI> <LI> Of the studied species, 59–93 % experienced range loss in the future. </LI> <LI> Species richness declined within central mainland China and northeastern Asia. </LI> <LI> Conserving regions with high species richness and dominant land covers is needed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

      • KCI등재

        Interaction of English Grain Aphid, Sitobion avenae (F.) and Their Natural Enemies to an Agro-forestry Environment

        Naeem Muhammad,Steve Compton,L.D. Incoll,Waseem Akram,Jong-Jin Lee 한국응용곤충학회 2005 Journal of Asia-Pacific Entomology Vol.8 No.2

        The agro-forestry landscape can influence the distribution of wheat-feeding aphids and their natural enemies. Aphid population densities were significantly higher in the arable control areas compared to the arable alleys. The ratio of alate to apterous adults indicated that relatively higher numbers of alates were found in the control areas. The apterous S. avenae adults and nymphs combined were found to constitute approximately 97 % and 98 % of the total from the arable alleys and arable control areas respectively. Parasitism rates (the proportion of aphids that were mummified) were 12.80% and 7.60% in the arable alleys and control areas respectively. In contrast, the numbers of mummies per aphids were found to be lower in the arable controls. The small-scale variation in the distance of plants from the tree rows did not significantly influence insect abundance.

      • E-Government for Modern Municipal Corporation

        Naeem Th. Yousir 보안공학연구지원센터 2016 International Journal of Database Theory and Appli Vol.9 No.4

        Android is an Operating System that is more powerful supporting a large number of smartphones. Android applications are developed using Java, and so it can be easily ported to the new platform. The primary aim of introducing PHP Android application is that the extension of data storage from SQLite to the MySQL. Here the PHP is used to fetch the data from the MySQL database at the web server. The PHP page will use JSON parsing for reading the data from the database. Here there will be communication between PHP and Android application. The PHP page will contact MySQL database and will fetch the data and returns the result. Our e-municipal is designed to automate the activities of Municipal Corporation that deal with different day to day general public amenities. The primary aim of this application is to ease the user to communicate with Municipal Corporation via a handheld Android application. The general user can easily register themselves and quickly send a petition to the municipal corporation regarding the problems they face in Metro water connection, sanitation and electricity maintenance. They can quickly record the birth and death and also can check their complaint status. The user can also view the tender which is applied by the municipality and can apply for it. Corporation officers and employees can see all the complaints from different users on different problems. Only the admin have the power to change all the data from the user. Here the tender allocation was based on spatial data mining algorithm rather than traditional clustering algorithm.

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