检索结果-南通市图书馆

Survey on Deep Learning Approaches for Detection of Email Security Threat

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, materials & Continua 2023年第10期77卷 325-348页

作者： mozamel m.saeed Zaher Al Aghbari Department of Computer Science Prince Sattam bin Abdulaziz UniversityAl Kharj11912Saudi Arabia Department of Computer Science University of SharjahSharjah27272United Arab Emirates

Emailing is among the cheapest and most easily accessible platforms,and covers every idea of the present century like banking,personal login database,academic information,invitation,marketing,advertisement,social engineering,model creation on cyber-based technologies,*** uncontrolled development and easy access to the internet are the reasons for the increased insecurity in email ***,this review paper aims to investigate deep learning approaches for detecting the threats associated with e-mail *** study compiles the literature related to the deep learning methodologies,which are applicable for providing safety in the field of cyber security of email in different *** data were extracted from different research *** paper discusses various solutions for handling these *** challenges and issues are also investigated for e-mail security threats including social engineering,malware,spam,and phishing in the existing solutions to identify the core current problem and set the road for future *** review analysis showed that communication media is the common platform for attackers to conduct fraudulent activities via spoofed e-mails and fake websites and this research has combined the merit and demerits of the deep learning approaches adaption in email security threat by the usage of models and *** study highlighted the contrasts of deep learning approaches in detecting email security *** review study has set criteria to include studies that deal with at least one of the six machine models in cyber security.

关键词： Attackers deep learning methods e-mail security threats machine learning phishing

Behaviour of rainbow trout(Oncorhynchus mykiss) under defensible and indefensible patterns of food delivery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Oceanology and Limnology 2010年第4期28卷 749-755页

作者： m.saeed HEYDARNEJAD G.J.PURSER Aquaculture Sector Biology Dept.Faculty of ScienceShahrekord Uni. School of Aquaculture Tasmanian Aquaculture and Fisheries InstituteUniversity of Tasmania

The goal of this study was to investigate the behaviour of rainbow trout(n=30),Oncorhynchus mykiss,in small raceways when either self-feeders(T2) or hand-feeding(t2) were *** method of food delivery in T2 was defensible while that of t2 was *** in both raceways were subjected to restricted feeding(RF) for 25 *** was available in the morning(09:00-10:00) in the downstream area and in the afternoon(16:00-17:00) in the upstream area of the *** results showed that the behaviour of rainbow trout was significantly different under interference competition(T2) for food compared with that under scramble competition(t2).RF in T2 fish limited food availability to meal times when feeding rewards were available while t2 fish only responded to the location of food *** aggressive fish in T2 were dominant,and t2 fish at high densities showed intense social interactions under the indefensible pattern of food distribution;these interactions did not dampen to a minimum level to suppress the development of dominance ***,the stocking density did not break down the dominance hierarchies between the T2 *** suggests that decreased efficiency in the search for food or inefficient foraging,induced by interference competition at high densities,affected the behaviour of rainbow trout.

关键词： rainbow trout defensible and indefensible pattern of food delivery dominant

Flow on oscillating rectangular duct for maxwell fluid

在线全文

学校读者我要写书评

暂无评论

Applied mathematics and mechanics(English Edition) 2012年第6期33卷 717-730页

作者： m.NAZAR F.SHAHID m.saeed AKRAm Q.SULTAN Centre for Advanced Studies in Pure and Applied mathematics Bahauddin Zakariya University

This paper presents an analysis for the unsteady flow of an incompress- ible maxwell fluid in an oscillating rectangular cross section. By using the Fourier and Laplace transforms as mathematical tools, the solutions are presented as a sum of the steady-state and transient solutions. For large time, when the transients disappear, the solution is represented by the steady-state solution. The solutions for the Newtonian fluids appear as limiting cases of the solutions obtained here. In the absence of the fre- quency of oscillations, we obtain the problem for the flow of the maxwell fluid in a duct of a rectangular cross-section moving parallel to its length. Final!y, the required time to reach the steady-state for sine oscillations of the rectangular duct is obtained by graphical illustrations for different parameters. moreover, the graphs are sketched for the velocity.

关键词： maxwell fluid oscillating rectangular duct velocity field

Pseudonym mutable Based Privacy for 5G User Identity

在线全文

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2021年第10期39卷 1-14页

作者： Rashid A.saeed mamoon m.saeed Rania A.mokhtar Hesham Alhumyani S.Abdel-Khalek Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Department of Electrical Engineering Faculty of EngineeringAlzaiem Alazhari UniversityKhartoum11111Sudan Department of Communications and Electronics Engineering Faculty of EngineeringUniversity of Modern Sciences(UMS)Sana'a16784Yemen Department of mathematics College of SciencesTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

Privacy,identity preserving and integrity have become key problems for telecommunication *** privacy threats are expected in 5G networks considering the large number of devices that will be *** Internet of Things(IoT)and long-term evolution for machine type(LTE-m)are growing very fast with massive data traffic the risk of privacy attacks will be greatly *** all the above issues standards’bodies should ensure users’identity and privacy in order to gain the trust of service providers and *** such threats,5G specifications require a rigid and robust privacy *** research studies have addressed user privacy in 5G *** paper proposes a method to enhance user identity privacy in 5G systems through a scheme to protect the international mobile subscriber identity(ImSI)using a mutable mobile subscriber identity(mmSI)that changes randomly and avoids the exchange of *** maintains authentication and key agreement(AKA)structure compatibility with previous mobile generations and improves user equipment(UE)synchronization with home *** proposed algorithm adds no computation overhead to UE or the network except a small amount in the home subscriber server(HSS).The proposed pseudonym mutable uses the XOR function to send the mmSI from the HSS to the UE which is reducing the encryption overhead *** proposed solution was verified by ProVerif.

关键词： 5G mmSI ImSI AKA privacy user identity

UAV-Aided Data Acquisition Using Gaining-Sharing Knowledge Optimization Algorithm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, materials & Continua 2022年第9期72卷 5999-6013页

作者： Rania m Tawfik Hazem A.A.Nomer m.saeed Darweesh Ali Wagdy mohamed Hassan mostafa Wireless Intelligent Networks Center(WINC) School of Engineering and Applied SciencesNile UniversityGiza12677Egypt School of Information Technology and Computer Science(ITCS) Nile UniversityGiza12677Egypt Operations Research Department Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Department of mathematics and Actuarial Science School of Science and EngineeringThe American University in CairoEgypt Electronics and Communications Engineering Department Cairo UniversityEgypt University of Science and Technology Nanotechnology and Nanoelectronics ProgramZewal City of Science and TechnologyOctober Gardens6th of OctoberGiza12578Egypt

Unmanned Aerial Vehicles(UAVs)provide a reliable and energyefficient solution for data collection from the Narrowband Internet of Things(NB-IoT)***,the UAV’s deployment optimization,including locations of the UAV’s stop points,is a necessity to minimize the energy consumption of the UAV and the NB-IoT devices and also to conduct the data collection *** this regard,this paper proposes GainingSharing Knowledge(GSK)algorithm for optimizing the UAV’s *** GSK,the number of UAV’s stop points in the three-dimensional space is encapsulated into a single individual with a fixed length representing an entire *** superiority of using GSK in the tackled problem is verified by simulation in seven *** provides significant results in all seven scenarios compared with other four optimization algorithms used before with the same ***,the NB-IoT is proposed as the wireless communication technology between the UAV and IoT devices.

关键词： NB-IoT UAV GSK stop points optimization

Preserving Privacy of User Identity Based on Pseudonym Variable in 5G

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, materials & Continua 2022年第3期70卷 5551-5568页

作者： mamoon m.saeed mohammad Kamrul Hasan Rosilah Hassan Rania mokhtar Rashid A.saeed Elsadig Saeid manoj Gupta Electrical Engineering Department Faculty of EngineeringAlzaiem Alazahri UniversityKhartoumSudan Center for Cyber Security Faculty of Information Science and TechnologyUniversiti KebangsaanMalaysia(UKM)43600BangiMalaysia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityPO Box 11099Taif21944Saudi Arabia Department of Electronics Engineering College of EngineeringSudan University of Science and TechnologyKhartoumSudan Department of Electronics and Communication Engineering JECRC UniversityJaipurIndia

The fifth generation(5G)system is the forthcoming generation of the mobile communication *** has numerous additional features and offers an extensively high data rate,more capacity,and low ***,these features and applications have many problems and issues in terms of security,which has become a great challenge in the telecommunication *** paper aimed to propose a solution to preserve the user identity privacy in the 5G system that can identify permanent identity by using Variable mobile Subscriber Identity,which randomly changes and does not use the permanent identity between the user equipment and home *** this mechanism,the user identity privacy would be secured and ***,it improves the synchronization between mobile users and home ***,its compliance with the Authentication and Key Agreement(AKA)structure was adopted in the previous *** can be deployed efficiently in the preceding generations because the current architecture imposes minimal modifications on the network parties without changes in the authentication vector’s message ***,the addition of any hardware to the AKA carries minor adjustments on the network *** this paper,the ProVerif is used to verify the proposed scheme.

关键词： 5G privacy and security user identity ImSI authentication and key agreement(AKA)

Synthesis and antibacterial studies of ciprofloxacin-metal complexes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Chinese Pharmaceutical Sciences 2019年第6期28卷 422-429页

作者： Najma Sultana m.saeed Arayne Ahsan Zamir Siddiqi Agha Zeeshan mirza Research Institute of Pharmaceutical Sciences Department of Pharmaceutical ChemistryFaculty of PharmacyUniversity ofKarachiKarachi-75270Pakistan Department of Chemistry University of Karachi Chemistry Department Faculty of Applied SciencesUmm Al-Qura UniversityMakkahSaudi Arabia Research Laboratories Centre Faculty of Applied SciencesUmm Al-Qura UniversityMakkahSaudi Arabia

metal complexes of ciprofloxacin were synthesized to study the effect of the drug on the metals present in the body or metals co-administered as multivitamin therapy. These complexes were then characterized by IR, UV, 1 H NmR, CHN and AA analyses. It was found that the metals coordinated through the β-keto carboxylic group, forming four coordinated complexes having square planar geometry. The effect of the antibacterial activity of these complexes with respect to parent drug was also studied against 14 different Gram + ve and Gram – ve organisms by the disk susceptibility technique. Some complexes showed improve activity as compared with the stated drug.

关键词： Ciprofloxacin IR UV ~1H NmR CHN AA analysis

Baseline Isolated Printed Text Image Database for Pashto Script Recognition

在线全文

学校读者我要写书评

暂无评论

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)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

虹鳟对时间和地点的学习记忆(英文)

动物学报 2008年第5期54卷 933-936页

作者： m.saeed HEYDARNEJAD Aquaculture Section Biology Dept.Faculty of ScienceShahrekord UniversityPOB 115ShahrekordIran

为确定虹鳟(Oncorhynchus mykiss)是否能将日投放两次食物的不同时间和地点联系起来,在30天内,于09:00-10:00将食饵投放在水族箱一侧,于15:00-16:00将食饵投放在水族箱另一侧。在第21天和28天,不放食饵以确定虹鳟对时间-地点的学习记忆... 详细信息

为确定虹鳟(Oncorhynchus mykiss)是否能将日投放两次食物的不同时间和地点联系起来,在30天内,于09:00-10:00将食饵投放在水族箱一侧,于15:00-16:00将食饵投放在水族箱另一侧。在第21天和28天,不放食饵以确定虹鳟对时间-地点的学习记忆。结果表明,虹鳟将不同时间和地点联系起来以获取食物,并且在水族箱两个投放食饵之处均表现出预取食活动,提示该物种具有控制时间-地点学习任务的内在机制。

关键词：虹鳟时间-地点学习预期的取食活动