Performance testing of e-commerce site is important for upcoming improvement and making better user experience which is performed by several web performance testing tools available on online platform. There are several tools user can use to scan their site for performance testing. This paper presents a web based application to collect and compare performance parameters with results automatically by applying WebpageTest, PageSpeed Insights and GTmetrix tools. For doing the test comparison nine parameters are considered and these are Load Time, First Byte, Start Render, First Contentful Paint, Speed Index, Largest Contentful Paint, Cumulative Layout Shift, Total Blocking Time and Time to Interactive parameters. The framework is developed with PHP, MySQL, CSS and HTML, where user will provide intended site's url to test performance. This paper presents the performance of ten e-commerce sites of Bangladesh. Among the three tools WebpageTest and Gtmetrix can collect the reports of all the parameters. 1.62 (site7), 3.25 (site4) and 1.89 (site7) seconds are reported as lowest value for tools WebPageTest, PageSpeed Insight and Gtmetrix respectively. The average results of three tools is measured where, the minimum value is shown as 0.03 seconds for 'total blocking time' by site7. And maximum value is shown as 17.78 seconds for 'load time' parameter recorded by site10.

One hop clustering scheme in MANET adopts the simple shortest path for packet transmission mechanism by trading off the cluster maintenance overhead. However, as the maintenance overhead increases the network scalability becomes vulnerable. Instead, a Two Hop clustering in Pseudolinear Mobile ad hoc network (THPM) is proposed for providing better scalability with minimum overhead. THPM also incorporates an important parameter, mobility since mobile devices on the move have a great impact on the network structure. Node mobility has been taken into account in terms of the average clusterhead lifetime of clustermembers. Here, the clusterheads are selected based on node stability, which has been calculated using dopler value. Simulation result shows that the clusters created by THPM retain more uniform cluster size, clusterhead lifetime and more nodes in each cluster up to 45∼50% than the existing technique.

For any educational institution course or teacher evaluation is an integral part for the betterment and effective education system. Student's feedback could be taken as one of parts of teacher evaluation. This paper has tried to evaluate the effectiveness of the course teacher evaluation system from the students' feedback of their corresponding courses. At Stamford University Bangladesh currently the teacher's evaluation task is running by manually which is very time consuming, slow and a lengthy process. It also needs number of human resources for completing this task. This paper has presented a web based automated tool for Course Teacher Evaluation System (TTE). In this technique student's opinions are taken from some predefined questions in a web based platform for evaluating a teacher of any particular course. And the result from the data analysis is automatically generated along with a graphical representation. From the generated report it becomes very easy for the teacher to understand and focus on the area where they need to emphasize for their personal and professional growth. As the results are generated automatically from the survey it saves time as well as man power.

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Water automation is all about controlling, monitoring and even billing of water usage in different places like hotel, house, irrigation land and industry. The researchers done water automation based on different purposes using different types of hardware and technologies. This paper develops Automated Water Management System (WMS) which can monitor water tank by measuring the water flow, water level, water temperature, cut ON/OFF water supply and send notifications to the user through mobile messaging. All of the things are connected through an android application that is much more efficient and easier to control the whole process.

The users of e-commerce sites are growing rapidly day by day for easy internet access where the performance of web applications plays a key role to satisfy the end-users. The performance of these websites or web applications depends on several parameters such as load time, fully loaded (time), fully loaded (requests), etc. This research tries to investigate and find out the parameters that affects the web performance and it has been tested on ecommerce applications of Bangladesh, where eleven parameters are considered and these are fully loaded (requests), first CPU idle, speed index, start render, load time, fully loaded (time), document complete (time), last painted hero, first contentful paint, and first byte. According to the analysis some applications need to take care of or the developers need to re-modify it. As per the investigation of scanned information, the applications fall under three classes. To start with, the applications do not demonstrate acceptable records to be investigated. The second and third classification applications required medium and high reaction times at the user end separately. Also, the fully loaded (requests)' and document complete (requests) show the most noteworthy required time at the user end, where maximum values are 347 and 344 seconds individually.

The scalability issue is essential to gain commercial success in MANET. However, there are some existing constraints such as low bandwidth, node mobility, energy consumption, and the broadcast nature of wireless communication that make the network complex to maintain. Furthermore, as the network size increases, communication costs may consume a large proportion of the bandwidth. Other parameters such as node mobility, node density, and traffic load can also impair network scalability. In this research paper, we proposed a new algorithm, K-hop clustering scheme for Pseudolinear MANET (KHPM) where cluster topology remains stable in terms of Khop and more dense network. The strategy used stability metric and Doppler Value (DV) between nodes, which exchanged packets obtained by Doppler shift. A node's smaller DV indicates lower mobility with higher stability. The proposed technique has been analysis hypothetically, which shows that the proposed algorithm is able to consider mobility as a key feature compared to existing SKCA method. In addition, the number of hops of a cluster is twice in KHPM compared to existing THPM technique. General TermsAd hoc wireless network, Clustering.

Water is the important natural resources that should be used more efficiently. In manual system, users are supposed to visit their water tank to check the water level. The uncontrolled use of water leads to wastage of water and it causes water scarcity. Water automation is a process which is an automatic system to use water. The basic idea of water automation is to ensure the proper use of water and reduce the human effort. It is used for different purposes such as irrigation in the agricultural land, water pump controlling, water usage monitoring, billing of water usage etc. in different places like household, agricultural land, industry, hotel etc. Researchers have implemented several water automation projects using android application considering water pump controller, water level detection, water billing with detection and control of water leakage. This research presented a survey of water automation system for water pump controller using android application.