International Journal of Engineering Research and Advanced Technology
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Subject Review: Image Encryption Techniques based on Chaotic Systems
No full textThe exchange of information over open networks and the internet has grown rapidly. Digital images occupy a major role in multimedia communication. Images are utilized in a variety of fields, including biometric authentication, military, medical science; hence, their security become a major concern. The best solution for securing the data (in any form) is encryption. The recent encryption trend is chaos-based encryption. Image encryption approaches based on chaos have essential merits l. This paper surveys various aspects and approaches of chaos maps image encryption like piecewise linear chaotic map (PWLCM), logistic map, skew tent map. Considering parameters such as correlation analysis and keyspace when comparing image encryption techniques that use different chaotic maps
Subject Review: Cloud Computing using RSA Algorithm
No full text Because of the advantages of resource sharing in an efficient and effective way, practical data storage mechanisms, and resources delivered on-demand whenever they are needed in an adequately suitable environment, cloud computing plays an indisputable role in today's software. The data available in the cloud is going to be frequently shared via various customers under different cloud categorizations like public cloud, private cloud, hybrid cloud, and so on, as stated via the National Institute of Standards and Technology (NIST). Generally, access control can be defined as a method of confirming authorized users for access to cloud data and resource sharing. Cloud computing, in the opinion of researchers concerned with cloud data security, offers a high level of data mobility, storage, availability, data integrity, backup and recovery, confidentiality, and privacy. Researchers studying cloud storage are focusing on data security, whereas also examining the influence of suggested algorithms on the performance of the cloud. This work attempts to discuss and review a number of approaches for using RSA in cloud computing, as well as to compare such approaches
Subject Review: Feature Extraction Based on Palm Print
No full text Physiological biometrics is one of the attractive fields for researchers due to its unique and stable features. One of these physical biometrics is “Palm Print”. This new approach is used in personal recognition because of the powerful information that can be extracted from the palm print. The characteristics that are extracted keeping the rules of palmprint feature extraction are very important. In spite of the huge work done in this approach, the results recorded about the palm print are still uncompleted and the techniques that used in palm print feature extraction used in recognition are still continually modified. In this paper, we present a detailed background review for many techniques and methods that are used to extract features from palm print with many various methods and procedures. A comparison between these techniques is also presented
Study of Risk Analysis of Project Delivery System Design-Bid-Build (DBB) Highway Project in the Middle of Pandemic
No full textProject delivery system Design-Bid-Build (DBB) is a complex project implementation process due to risk and uncertainty, as the Covid-19 pandemic situation progresses, further problems arise, at this stage the pandemic does not generally make the project completely impossible completed but delays its implementation, causes delays, disturbances occur, as well as responses to government regulations related to regional quarantine. This study seeks to identify and analyze the most influential risks on the DBB project delivery system in the implementation phase of a highway construction project in the midst of a pandemic. The research was conducted in 12 (twelve) different projects in Serang City throughout 2020 since the pandemic began. After the literature review, through the Focus Group Discussion (FGD) method, the expert managed to identify 17 risk variables. Then the questionnaires were distributed to expert respondents and analyzed using the Analytical Hierarchy Process (AHP) method. The results of the analysis show that there are 4 (four) top risk factors that have the most influence on the DBB project delivery system in the midst of a pandemic, namely: (1) Occupational health and safety; (2) Delay in delivery schedule; (3) Delay in certification of bills; (4) Delays in procuring materials, labor, and equipment
Mixture Experiment Model for Predicting the Static Modulus of Elasticity of Laterite-Quarry Dust Concrete
No full textStatic modulus of elasticity of concrete is an important structural property of concrete. However, there is no consensus on the ideal methodology for the characterization or estimation of the property, which has led to specifying a minimum value to be met by designers. This paper developed a model for predicting the 28th-day static modulus of elasticity of laterite-quarry dust concrete using [5, 2] extreme vertices design. The model was formulated using existing data and was validated using the p-value, F statistics, and normal probability plot. The static modulus of elasticity was determined as a function of the compressive strength and density of the concrete cubes and a second-degree polynomial was fitted to the data of the static modulus of elasticity. Several mix proportions were generated and converted to ratios and their static modulus of elasticity was obtained using the developed model. The minimum and maximum static modulus of elasticity predictable by the model are 18.51(GPa) and 28.87(GPa). The static modulus of elasticity of laterite-quarry dust concrete for both domestic and commercial construction work can be predicted using this model
Improved key of RSA Algorithm Generated from The image based on SHA256 Algorithm
No full textAt the present time, information security has become very necessary and is considered a very difficult problem in the event that it is exposed by the attackers and becomes easy and available to them. Therefore, data protection and non-disclosure to unauthorized persons are required to do so. The solution is to encrypt it and there are a large number of encryption algorithms in use. In this paper, both the RSA generic encryption algorithm and the hash algorithm known as SHA256 were used, in which the RSA algorithm was improved by generating the algorithm keys from an image generated with the SHA256 hashing algorithm. Where two keys are formed, one of which is public for encryption and is available and the other is a private key that is not disclosed only to the person who has access to the message, and effective encryption of the data was produced in addition to the retrieval of the original text. The proposed method has been programmed in VisualBaic.Net 2012 language
Study of Key Success Factors for Lean Six Sigma And Last Planner System In Basement Work On High-rise Residential Building Projects, Jakarta Indonesia
No full textCurrently, the construction of high-rise buildings is increasingly being carried out, in line with economic growth in big cities, but vacant land for settlements, offices and residential buildings is very little or limited, as well as the high price of land in cities. The level of housing needs in Indonesia. According to [1] estimates until 2025 are as shown below. Where in Indonesia until 2025 it is estimated that it will require housing around 1,513,865 residential units. so that the need for residential units in cities is very large, to cope with limited land and high prices of land in the city, now to meet the residential needs, buildings are made vertically (highrise), but with limited land and rampant construction of high-rise buildings have an effect on the need for parking lots, to overcome this, a basement was made, which could be used as a parking area in addition to other functions such as utility rooms and others. In the implementation of high-rise building construction projects, good scheduling and quality control play a very important role, in the timeliness, cost and quality / quality of project completion as a whole. [2] The success of a construction project is based on 3 things, namely cost, quality and time. To control cost, quality and time in this study using the Lean Six Sigma and Last Planner System methods. By using this method, it will control waste (waste) and control scheduling so that work delays do not occur. To get the factors that affect cost efficiency, quality and time, researchers use analysis with SPSS software (Statistical Package for the Social Sciens), with SPSS 10 key success factors that can streamline costs, quality and time are obtained as follows: 1. Reduction costs, 2. Improve communication among project participants, 3. Knowledge of the project, 4. Planning Process, 5. Predictable Work Plan, 6. Prepare a weekly plan, 7. BoQ, 8. Image, 9. Damaged Soil Removal Method, 10. Weather Conditions. These 10 factors are expected to make cost, quality and time efficiency in construction implementation.
 
Image Encryption based on a New Generation of Key from Rubik's Cube Principle of AES Algorithm
No full textEncryption is the most secure way to save data, whether text, images, video, or any other type of multimedia, as in recent years, a lot of encryption algorithms have been suggested to protect this digital data from all kinds of attacks, and the protection process was carried out through encryption and the use of many algorithms. Through the proposed method, this research was focused on an important aspect, which is protecting the key by creating a new method for the algorithm key, as the more difficult it is to know the key, the more difficult it is to break the algorithm, as Rubik's Cube method was used to create the key of the AES algorithm, where it performs just throw the cube to generate the key, then the improved algorithm was used to encrypt the images and then restore the original image without problems and the process was of a high quality as the key configuration time was reduced and a good level of security was provided. The proposed method has been programmed in Visual Basic.Net 2015 language
Study on Network Behavior Assessment Using Amazon Web and Cloud Computing Services
No full textThe revolution of Cloud Computing increases the opportunities to provide realistic and most sophisticated evaluation modules that reduce the management time and cost of network performance evaluation and failure prediction. In our research, This paper presents a cloud-based software system that utilizing the Amazon Elastic MapReducer (EMR) ensemble clustered instances for evaluating the collected network measurements to quantifies network performance and predicate its degradation in the long run. The extracted outcomes illustrate the efficiency of the proposed system
Key Success Factor Analysis in Application of Manual Pert Method in Rail Road Construction
No full textProject success is the ultimate goal of every project. The difference in critical success factors for a project is because each project has different factors of influence. Therefore, each party involved must have a certain strategy for the success of the project, namely by knowing the factors that most influence the success (success) of the construction implementation.
Methodology This research was conducted using a qualitative descriptive research method by explaining variables and processing the data at the stage of identification and factor analysis. Distributed to 40 respondents who are involved in railroad works. The purpose of this study is to describe a number of variables with respect to the problem and the unit studied between the problems being tested, and to determine the success factors.
Distributed to 40 respondents who are involved in railroad works. The purpose of this study is to describe a number of variables with respect to the problem and the unit studied between the problems being tested, and to determine the success factors. And the manual method pert (X2) with 14 factors consists of the distribution of activity duration, the effect of activity duration, the work must be faster, the possibility of sharing activity duration, scheduling arrangements, the final goal of project scheduling, scheduling activities that can be completed on time, break down or start. Project into activities, determine the estimated network time, network diagrams are drawn, can combine project activities, calculations can be developed manually, a higher similarity in the scheduled network, the resulting tool is accurate but not complicated. These factors, namely the Implementation Method (X1) and the Manual Method Pert (X2) affect the time dependent variable (Y1)