Volume 9, Issue 4, April 2018

Adjustment of Land Price in Neighborhood Districts with Physical Rupture of Suburban Railway (Case Study: Sari)

Hossein Elyasi, Mahmoud Ghalehnoei, Nima Jafari and Nima Shabannezhad

Master of Urban Design, Art University of Isfahan, Isfahan, Iran
Faculty of Art, University of Isfahan, Isfahan, Iran
Bachelor of Architectural Engineering, Behshahr Branch, Islamic Azad University, Behshahr, Iran
Master of Transportation Planning, Tehran Branch, Islamic Azad University, Tehran, Iran

Abstract– Railways which have been formed at the beginning with the purpose of urban growth and development outside the boundaries of cities nowadays are known as the factor of creating a physical and social rupture of cities. In Sari, most of the urban abnormalities are formed on the sidelines of the railway. One the most important of these abnormalities is the physical and social rupture of urban texture and because that, it is investigated in this study. The purpose of this study is to test some assumptions which have obtained based study of theoretical foundation and case studies in Iran and abroad. The other purpose of the study is to obtain the way of the effect of the railway on the urban districts in its neighborhood. This study is based on the use of the special arrangements in order to prevent or minimize physical-social rupture. The period of the research had been started from July of 2015 and was continued until August of 2016. The research has been conducted in four residence districts named Servine Bagh, Lesani, Karmandan, Mirzamani in Sari, Mazandaran, Iran and these districts are located on the sidelines of the Sari-Tehran railway and research community was the people living in mentioned four neighborhood districts. In the current research, by using library study, theories of the theorists and related samples inside and outside the country, are investigated. Then, using field method, case studies (neighborhood districts of the railway) and their characteristics are investigated. In order to identify the sample volume to complete questionnaires in districts, Cochrane method is used. The number of completed and questionnaires for Servine Bagh, Mirzamani, Karmandan, and Lesani district are 180, 150, 140 and 90, respectively. According to latest statistics in 1386, the population of these districts has been 4150, 3350, 3170 and 2100, respectively. Findings of the current research show the effects of the railway on the neighborhood residence texture, which can be used as an applied research for the development of the future railway.

Keywords— Railway, Land Price, Physical Rupture, Urban Abnormalities and Residence Districts

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Evaluation of Construction Waste Management in the Project and Construction Stages

Fábio Barbosa Vilela, Camila Lacerda Gomes, Pedro Valle Salles, Aniel de Melo Dias and Flávia Spitale Jacques Poggiali

Engenheiro de Produção Civil - CEFET-MG
Mestre em Engenharia Civil - CEFET-MG
Professor Voluntário - Departamento de Engenharia Civil - CEFET-MG

Abstract– Construction waste has become a major public health and management challenge in Brazil. Given the existence of a large number of feasible practices for effective construction waste management, it is important to assess which critical successful practices are to be implemented both in the project and the construction stages in order to provide effective waste management. In order to identify these critical practices, seven successful practices related to the project stage and eight successful practices related to the construction phase were listed based on a bibliographical review. Subsequently, a questionnaire aimed at projecters and engineers was applied, where they evaluated their knowledge of the laws and regulations related to construction waste, the importance of each practice previously listed and whether these practices are implemented in their company. The results of this study also demonstrate that practices related to the project stage have a much lower percentage of implementation when compared to implementation levels related to the construction phase, 29% versus 52%. In addition, it is verified that most of the successful practices considered as critical by the respondents of the questionnaire are in agreement with the bibliographic review.

Keywords— Construction Waste, Critical Successful Practices and Waste Management

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Software Design Changes: Analysis and Impact of Design Changes on Software Design Performance and Quality

Muhammad Abdullah Awais

Department of Computer Science, Virtual University of Pakistan

Abstract– Development of quality software is not merely coding some pages according to the requirement and delivering to the client Rather quality software development is a complete process which leads towards finished product from requirement to maintenance. Many software fail despite of conformance to requirements because their design has not any support for changes made in design and architecture due to some changes in requirements or any other reason in final phases of development. Quality software design architecture is prepared by following quality matrices and frameworks to adapt the changes made at any phase of development because change in software development is something that cannot be avoided despite of careful requirement engineering and analysis. Change in design occurs due to change in any process leading to software design and most of the times change comes from client in requirement. This change leads to change in design of software under development and impact overall software design and its architecture to adjust the change and many a times this subsequent change in design leads to bad software design. This bad software design leads to poor quality software. Sometimes design changes come in bulk and it becomes difficult to track those changes made by different designers and developers which leads to difficult situation when changes are needed to be tracked. So to overcome these issues, in this research paper we will review the existing literature to define the impact of changes in requirement and design on the design of software. We will propose a system to track these changes that will be reflected in design and software performance metric will be studied in relation to these changes leading to bad software design because if change and impact of that change in design is not carefully examined, will lead to bad software design that will be costly to rectify and eventually would brunt the design and schedule to deliver the product.

Keywords— Software Design, Software Process, Performance Metric, Quality Metric, Software Design Methods, Change Management, Bad Design and Requirement Tracking

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A Review of Cryptographic Techniques Used in Wireless Network Security

Zeeshan Pasha and Muhammad Awais Chheena

Department of Computer Science & Engineering UET, Lahore

Abstract– The study of secret writing is known as Cryptography. It is basically science and art. For network security cryptography is basically now a day’s most popular approach which are using in industry. There is two parts of cryptography, one is encryption and other one is decryption. The process of converting the plain text into cipher text with the help of some keys is known as Encryption. The process of converting back the cipher text into plain text with the help of some keys is known as Decryption. Cryptography is playing main role in providing security for the networks and in Internet security it is main part like Emails. Public key, symmetric key and hash function cryptography are used for the encryption and decryption for secure communication. In this review paper, among the various existing encryption decryption algorithms like DES, 3DES, BLOWFISH, IDEA, AES, RC6, MD5 and RSA are chosen and compared on the premise of size, block size, round, structure, security, flexibility to expand in future and limitations.

Keywords— Network Security, Symmetric Key, Public Key, Encryption, Decryption, Plain Text and Cipher Text

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