September 2018 (Journal of Modern Science and Technology)

September 2018 (Journal of Modern Science and Technology)

Total Articles - 5

Pages 1-12

Author: Soumik Nafis Sadeek, Md. Tanvir Uddin Chowdhury, Shakil Mohammad Rifaat, Md. Shaheduzzaman, and Abdun Noor Nayem

School zones have been identified as vulnerable area due to lack of safety measures observed in Bangladesh. To ensure the safety of school going children, reduction of vehicle speed near school area is essential. For this purpose, average speed variation of vehicles in different time, different days of a week both on highway and arterial are investigated in this research. t-test was performed considering 90% confidence interval for both equal and unequal variances. Results indicate that average speed varies significantly between highway and arterial at different times and different days. Based on the results, countermeasures are proposed to improve road safety scenario in school zones.

Pages 13-24

Author: Khairun Nahar, Md. Ahasan Habib, Md. Ashraful Alam Nayon and Md. Mosharraf Hossain

Assembly Line balancing is one of the widely used basic principles in production system which improves the throughput of assembly line while reducing non value-added activities, cycle time and also ensures maximization of labor efficiency. Line balancing problem deals with the distribution of activities among the workstations for large scale production so that there will be maximum utilization of human resources and facilities without disturbing the work sequence. In an industrial environment to make certain standardized commodities it is assumed that operation times on the machines, and the precedence relationship existing between the operations which results from the technology of the production line and the cycle time or the number of machines are known. This paper focuses on minimization of the number of workstation and to maximize the balancing efficiency by applying Ant Colony Optimization (ACO) algorithm for the simple assembly line balancing problem. Besides using fixed cycle time trial cycle time also used to obtain the maximized output. The balancing efficiency have analyzed by assigning each task to the workstation for every of the ranged cycle time and finally concluded that the balancing efficiency is inversely related to the idle time of an assembly line. Rank Positional Weight (RPW) method is also used here to determine the desired findings. Finally a comparison has been made between ACO & RPW and it is found that when the cycle time minimum then balancing efficiency is maximum if the number of workstation is unchanged.

Pages 25-33

Author: Md. Abul Kalam Azad

An experimental study on the strength and behaviour of concrete infilled light gauge steel square columns(CFSSC) has been carried out. Six specimens of CFSSC and three specimens of SSC with and without transverse stiffeners were tested under concentric compressive load. Based on the experimental results, a parameter representing the increase in strength of the composite column due to addition of concrete and stiffeners is proposed.

Pages 34-46

Author: Md. Mashreki Islam Sami, Tushar Chowhan, and Fatema Sultana

Turag River is an important lifeline for Dhaka city flowing through Gazipur, from north meeting Buriganga at the south. One of the importance of its existence is waterway transportation, carrying goods and a large number of construction materials like brick and sand. The paper upholds serious issues behind the river pollution. Due to the massive disposal of industrial wastes and garbage dumping, the river is suffocating in the presence of hazardous chemicals, dye and sewage water. On the other hand, businessmen with the influence of political parties are encroaching the river banks for sand trading, Brickfields, housing projects. To restore the current condition of Turag in its natural form, resourceful techniques are explored and analyzed. This study depicts such suitable techniques which are implementable with less financial resources in the context of Bangladesh. Among various methods, environmental flow management and riparian ecosystem restoration are two unique and widely used processes for the restoration of water quality, lost habitats and degraded ecosystem.

Pages 47-59

Author: Faiyaz Mohammad Saif, Jabin Rubayat, Fahmida Sharmin Pranto and Md. Hosne Al Walid

Extracting and comprehension of emotion is of high significance for the collaboration among human and machine communication frameworks. The most expressive approach to show the human's emotion is through facial expression analysis. Facial Expression is an acknowledged, non-nosy additionally skillful technique for communication that has been well thoroughly considered as a plausible cooperation of such interface. This paper introduces and actualizes an extraction and acknowledgment technique for facial expression and emotion from still picture. The mean of this examination is making a Facial Expression Recognition (FER) conspire by utilizing Bezier curve and afterward checking the precision by utilizing diverse classifiers (Naïve Bayes, SVM and ANN). After taking a picture from dataset and sequentially applying skin color segmentation, largest connected component and binary image conversion, eyes and lips are isolated from the face. Subsequently Bezier curve for eyes and lips are recognized and are contrasted with those pictures that are stored in the database. Next it finds the nearest Bezier curve from the database. In this way by utilizing these technique emotions (Smile, Normal, Sad & Surprise) communicated by the human face can be distinguished effortlessly. Hence, a Bezier curve based solution together with image processing is used in classifying the emotions by using WEKA. Finally, ANN, Naïve Bayes and SVM classifiers are used to determine the accuracy of the system by training and testing the dataset.

Total Articles- 5

All citation information on this page will be exported. help