Transactions on Networks and Communications最新文献_第8页

File Carving Survey on Techniques, Tools and Areas of Use 档案雕刻技术、工具和使用领域调查

Transactions on Networks and Communications Pub Date : 2020-02-28 DOI: 10.14738/tnc.81.7636

Ziad Saif Alrobieh, Ali Mohammed Abdullah Ali Raqpan

{"title":"File Carving Survey on Techniques, Tools and Areas of Use","authors":"Ziad Saif Alrobieh, Ali Mohammed Abdullah Ali Raqpan","doi":"10.14738/tnc.81.7636","DOIUrl":"https://doi.org/10.14738/tnc.81.7636","url":null,"abstract":"In digital and computer forensics, file carving is a very hot research topic. That is the main reason why the research is needed to be focused on improving file carving techniques, so that digital investigation can obtain important data and evidence from damaged or corrupted storage media. In the digital forensic investigation, analyzing the unallocated space of storage media is necessary to extract the deleted or prewritten files when the file system metadata is missing or corrupted. Data carving can be defined as a method to recover the file from unallocated space based on different factors such as file type, information of the file (Header/Footer), or the contents of the file. Research in this area focuses on technological improvements in terms of tools and techniques over the past years. The studies examine different techniques of data carving, especially multimedia files (eg. images and videos). The work file carving is classified into three categories classic carving techniques, intelligent carving techniques and smart carving techniques. Moreover, there are seven popular multimedia carving tools that are mostly used and experimentally evaluated are presented. We conclude that proposing new advanced method for carving multimedia files still open and new direction for future research. This is because the fragmentations and compression are very commons used and useful for these kind of files.","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the Personal Data Protection Methods through Programs 通过项目探索个人资料保护方法

Transactions on Networks and Communications Pub Date : 2020-02-28 DOI: 10.14738/tnc.81.7682

S. Mahmudova

引用次数: 0

The Effectiveness of Problem Based Learning Method on Students’ Achievement in An Analog Electronics Course at Palestine Polytechnic University 巴勒斯坦理工大学模拟电子学课程中基于问题的学习方法对学生成绩的影响

Transactions on Networks and Communications Pub Date : 2019-12-30 DOI: 10.14738/tnc.76.7586

A. Arman

{"title":"The Effectiveness of Problem Based Learning Method on Students’ Achievement in An Analog Electronics Course at Palestine Polytechnic University","authors":"A. Arman","doi":"10.14738/tnc.76.7586","DOIUrl":"https://doi.org/10.14738/tnc.76.7586","url":null,"abstract":"This study, undertaken at the Palestine Polytechnic University in Palestine, describes how problem-based learning (PBL) affects the Students’ Achievement in ‘analog electronics course’. Problems were designed to match real-life situations. Data of the experimental group learning outcome effects, were compared.. It was found that students who followed the PBL method learned to do research, learned better how to work in groups and developed greater confidence. Also what they learned was more of a practical value and they had more positive attitudes and reflected more. This research is in response to the real need to address gaps between employer expectations and higher education outcomes in Palestine. \u0000 In this study, an experimental group of (16) students was examined after studying a course using PBL approach. The students’ achievement was examined before and after the experiment. The research results proved that there is a significant increase in gain in achievement. The PBL has achieved efficiency greater than (80%) in achievement. Also, the PBL has achieved efficiency greater than (1.2) measured with respect to Black’s Gain Ratio in achievement. Also, PBL has achieved efficiency greater than (0.6) measured with respect to McGugian’s Gain Ratio in achievement. The PBL has achieved larger effect size (more than 0.14) on achievement.","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129725010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of PH and Electrical Conductivity in Soil of Barnala District (Punjab, India): Deleterious Effects on Human Lives 印度旁遮普邦巴纳拉地区土壤PH和电导率的研究:对人类生命的有害影响

Transactions on Networks and Communications Pub Date : 2019-12-30 DOI: 10.14738/tnc.76.7585

K. Kaur

{"title":"Study of PH and Electrical Conductivity in Soil of Barnala District (Punjab, India): Deleterious Effects on Human Lives","authors":"K. Kaur","doi":"10.14738/tnc.76.7585","DOIUrl":"https://doi.org/10.14738/tnc.76.7585","url":null,"abstract":"The purpose of this study was to determine the pH and electrical conductivity in soil of different villages of barnala district (Punjab,India ) and their harmful effects on human health. Samples of soil were collected from agricultural fields of four different villages of barnala region such as Rure ke kalan, Gunas, Handiaya and cheema from five different layers(0-10 cm; 10-20 cm; 20-30 cm; 30-40 cm and 40-50 cm depth).There are three industrial sites in barnala district and these four villages are located near to these industial sites. In this study, adverse effect of different industries on fields of these four villages were investigated. Handiaya village has high values of pH and electrical conductivity while Gunas and Cheema villages have lowest value of electrical conductivity and pH respectively. when textile effluent reaches the soil or underground water it causes bad effect on human health such as people may suffer from alkalosis which is due to high pH and can lead to arrhythmia which means irregular heartbeat. Alkalosis can induce a coma, it may cause seizures and malfunctioning of kidneys. Due to large value of Electrical conductivity activity of soil micro-organism declines so, the important microbial processes, such as nitrogen cycling, production of nitrous and other N oxide gases, respiration, and decomposition; populations of plantparasitic nematodes can increase; and increased nitrogen losses. KeywordsSoil contamination, Physico-chemical parameters, pH, electrical conductivity","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130313248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Study of Miniaturization of a Silicon Vapor Chamber for Compact 3D Microelectronics, via a Hybrid Analytical and Finite Element Method 小型三维微电子用硅气室小型化的分析与有限元混合方法研究

Transactions on Networks and Communications Pub Date : 2019-12-30 DOI: 10.14738/tnc.76.7569

Yu’e Ma, M. Shirazy, Q. Struss, P. Coudrain, J. Colonna, A. Souifi, L. Fréchette, C. Gontrand

引用次数: 1

The Consumers’ perceptive of Internet-of-Things: Exploring Users’ Acceptance and Purchase Behavior 消费者对物联网的感知:探索用户的接受度和购买行为

Transactions on Networks and Communications Pub Date : 2019-12-25 DOI: 10.14738/tnc.75.7535

Hui-Hong Huang

引用次数: 0

Implementation and verification of high data availability on database 数据库高数据可用性的实现与验证

Transactions on Networks and Communications Pub Date : 2019-12-25 DOI: 10.14738/tnc.75.7292

Yen-Jen Chen, Han Tsai

{"title":"Implementation and verification of high data availability on database","authors":"Yen-Jen Chen, Han Tsai","doi":"10.14738/tnc.75.7292","DOIUrl":"https://doi.org/10.14738/tnc.75.7292","url":null,"abstract":"This study provides a low-cost and high-availability database management system architecture for general Small/Medium Enterprises (SMEs) to backup database data access. To prove that the proposed architecture can support the high availability of the database, and can effectively avoid data loss in memory caused by failovers, this study applies the main test method of powering off the virtual machine and verified three cases on two commonly used databases MySQL and PostgreSQL: Case 1 proves that this study combines the database native disaster recovery mechanism to effectively achieve high availability of the database. Case 2 proves that it effectively controls the WAL (Write Ahead Log) of the PostgreSQL database and Redo log mechanism of the MySQL database, so that data correctness is maintained during failovers. Case 3 proves that it can analyze and control the timing of the database in writing data in the cache memory to the hard disk. This study also designed a failover process to avoid data loss during failovers due to no enough time to write the data in the cache memory back to the hard disk; and finally to realize the high-availability of the database management system architecture in a practical way. \u0000 \u0000Keywords: Database, DBMS, High Availability, Failover, DRBD","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127138806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regularities in the social network’s user distribution by the number of mutual contacts 社交网络的用户分布规律由相互接触的数量决定

Transactions on Networks and Communications Pub Date : 2019-12-25 DOI: 10.14738/tnc.75.7552

A. Bakirov, I. Suleimenov

引用次数: 0

An Improved Error Control Model in Packet Switched Wide Area Networks 一种改进的分组交换广域网错误控制模型

Transactions on Networks and Communications Pub Date : 2019-11-08 DOI: 10.14738/tnc.74.7263

Voke Ogbimi, E. Francis

{"title":"An Improved Error Control Model in Packet Switched Wide Area Networks","authors":"Voke Ogbimi, E. Francis","doi":"10.14738/tnc.74.7263","DOIUrl":"https://doi.org/10.14738/tnc.74.7263","url":null,"abstract":"Error is an important problem in communication that occurs in shared networks when a packet fails to arrive at the destination or it arrives at the destination but some of the bits are in error or have been altered. In typical packet switched wide area networks, this can occur quite easily when output links are slower than inputs and multiple traffic sources competing for same output link at the same time. Typical for packet switched WAN, the packet transmit input/output buffer and queue of the network devices in their way towards the destination. Moreover, these networks are characterized by the fact that packets often arrive in “burst”. The buffers in the network devices are intended to assimilate these traffic hosts until they can be processed. Nevertheless, the available buffers in the network nodes may fill up rapidly if the network traffic is too high which in turn may lead to discarded packets. The situation cannot be avoided by increasing the size of the buffers, since unreasonable buffer size will lead to excessive end-to-end (e2e) delay. A typical scenario for congestion occurs where multiple incoming link feed into single outgoing link (e.g several Local Area Networks connected to Wide Area Networks). The routers of the networks are highly susceptible for traffic congestion because they are too small for the amount of traffic required to handle. \u0000This paper presented general concepts of Error Control and its mechanisms and its application to packet switched wide area networks An improved model was proposed with reduced error while transmitting packets from one channel to the other. \u0000Simulating the model for reducing error control in packet switched wide area networks increased the number of messages, reduced response time used in transmitting and receiving packets, reduced network utilization.","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132285132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manufacture of Glass Foam by Predominantly Direct Microwave Heating of Recycled Glass Waste 主要利用微波直接加热回收玻璃废料制造玻璃泡沫

Transactions on Networks and Communications Pub Date : 2019-11-08 DOI: 10.14738/tnc.74.7214

S. Axinte, L. Paunescu, M. Drăgoescu, A. Sebe

{"title":"Manufacture of Glass Foam by Predominantly Direct Microwave Heating of Recycled Glass Waste","authors":"S. Axinte, L. Paunescu, M. Drăgoescu, A. Sebe","doi":"10.14738/tnc.74.7214","DOIUrl":"https://doi.org/10.14738/tnc.74.7214","url":null,"abstract":"The paper presents authors’ contribution to the improvement of the manufacturing technique of foam glass using the microwave energy. Due to the physical and mechanical characteristics, this material, obtained by the sintering process of waste glass at high temperature, constitutes a viable replacer of existing similar materials, used especially in construction. Unlike the conventional heating methods used worldwide, the company Daily Sourcing & Research SRL Bucharest tested lately microwave heating techniques in the manufacturing process of foam glass. In the paper it is presented an original method based on the feature of the powder mixture composed by waste glass (over 97 wt.%) and the foaming agent (calcium carbonate) to absorb the microwave energy and convert it to heat since the ambient temperature, using a silicon carbide and silicon nitride (80/ 20 weight ratio) crucible with thin wall (2.5 mm), which allows both a preponderantly direct heating and partially an indirect heating of the material. The main parameters of the process (specific consumption of energy, heating speed, process temperature and duration) were significant improved compared to the previous experiments.","PeriodicalId":448328,"journal":{"name":"Transactions on Networks and Communications","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126822570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10