Orthognal Zones for Interference Migration in 2.4 GHz Mesh Backhaul

Managing interference in the multi-radio networks is critical challenge; problem becomes even more serious in 2.4 GHz band due to minimal availability of orthogonal channels. This work attempts to propose a channel assignment scheme for interference zones of 2.4 GHz backhaul of Wireless Mesh Networks (WMN). The static nodes of Infrastructure based Backhaul employing directional antennas to connect static nodes, orthogonal channel zones introducing Interference are formatted with the selection of single tire direct hop and two tier directional hopes. The effort maintain the orthogonality of channels on system thus reduce the co-channel interference between inter flow and intra flow links. Group of non-overlapping channels of selected band are obtained by a mathematical procedure, interference is modeled by directed graph and Channel assignment is carried out with the help of greedy algorithms. Experimental analysis of the technical proposal is done by simulation through OPNET 14. Our framework can act as an imperative way to enhance the network performance resulting a leading improvement in system throughput and reduction in system delay

IMPACT OF PLAYING VIDEO GAMES ON COGNITIVE FUNCTIONING AND LEARNING STYLES

Video games are especially popular with teenagers and young adults as a form of entertainment, and their time spent playing video games has grown exponentially. The main purpose of this study was to assess the effect of video games on cognitive functions and learning style in young people. A cross-sectional research study was used to investigate cognitive function in teen video game players. Cognitive functions, including memory, attention, and executive functions, were applied to 80 adolescents who were divided into two groups: those who regularly played video games (50) and those who did not play (50). Other data, such as demographics, medical information, types of video games, and time spent playing video games, were collected through the questionnaire. No significant difference was identified between the groups in terms of age and sociodemographic variables. Results indicated that visual memory and visual learning type scores were significantly better in the play group. Participants who were playing video games regularly indicated significant differences in visual type of learning (p=0.000). Whereas, no significant differences were found in other learning styles aural (p=1.000) and verbal (p=1.000)

Mathematical Analysis of Magnetized Rotating Nanofluid Flow Over nonlinear shrinking surface: Duality and Stability

In this study, the MHD effect on boundary layer rotating flow of a nanofluid is investigated for the multiple branches case. The main focus of current research is to examine flow characteristics on a nonlinear permeable shrinking sheet. Moreover, the governing partial differential equations (PDEs) of the problem considered are reduced into coupled nonlinear ordinary differential equations (ODEs) with the appropriate similarity transformation. Numerical results based on the plotted graphs are gotten by solving ODEs with help of the three-stage Labatto IIIA method in bvp4c solver in MATLAB. To confirm numerical outcomes, current results are compared with previously available outcomes and found in good agreement. Skin friction coefficients, Nusselt and Sherwood numbers, velocity profiles, temperature profiles, and concentration profiles are examined. The results show that dual (no) branches exist in certain ranges of the suction parameter i.e., SSc (SSc). Further, profiles of velocity decrease for rising values of Hartmann number in the upper branch, while reverse trend has been noticed in a lower branch. Profiles of temperature and concentration enhance for the increasing values of thermophoresis in both branches. stability analysis of the branches is also done and noticed that upper branch is a stable branch from both branches. Finally, it is noted that the stable branch has symmetrical behavior with regard to the parameter of rotation.

Testing Salience Model on Work Family Interface: A Regression Analysis

The simultaneous arrangement of home and work life is important for all. Many who work at home, however, face difficulties in maintaining their work and domestic relations balance, since both fields are mixed together on a single roof. As telecoms technology progresses, the possibilities of working from home have been improved. Discussed the effects of working at-home solutions on the quality of work life of the individual. The current research examined in a sample of service workers from Pakistan an extended version of the differential salience model and a related salience model. The findings of this study help in part the model in a number of cultural and domestic contexts, but they also establish variations in domain resources and limit requirements. Strong job demands and the present situation of COVID-19 represent primarily technically the work-to-home interference (WtHI). Traveling tools have been identical in terms of reducing the WtHI and work-to-home enhancement (WtHE). WtHE was expected to be more likely because of the activation of personnel services. However, testing one's work had no big influence on WtHE. Moreover, unlike the theoretical model, restriction requirements at the interfaces between work and family have been found to be differential, not comparatively significant.

The Mathematical Model for searching the Shortest Route for TB Patients with the help of Dijkstra’s Algorithm

In this research paper, we have studied TB (Tuberculosis) patients who come from different traffic routes in order to seek medical help and treatment in Karachi, Sindh, Pakistan. In this research work, we have focused on the transportation problems of the TB patients. These TB patients can travel on the paths having minimum distance as found out in this paper using Dijktra’s Algorithm. People hope that they have better treatment opportunities and financial medical relief in the government and private hospitals in Karachi. There are many private hospitals in the city but unfortunately, they provide expensive treatments. As a consequence, people belonging to the poor or lower and middle classes approach government hospitals adequately. Among them, Nazimabad Chest Hospital for TB patients (under the supervision of Dow University of Health Sciences) is providing better facilities as compared to the other hospitals involved in providing medical treatments for the similar medical issues. Nazimabad Chest Hospital for TB patients is renowned for its high quality treatment of TB patients. The hospital is located inside Government Hospital Nazimabad (under the control of Dow University), Karachi. It has latest equipments, competent and qualified staff to treat TB patients. Patients have to visit the hospital on weekly basis from their homes and residences. They use several combinations of traffic routes to reach the hospital as these patients live in different areas like, Malir Cantt, Safari Park, Hassan Square, North-Nazimabad, North Karachi, Gulshan-e-Iqbal, etc. A path or road is required which takes the least amount of time and subsequently reduces the transportation charges. In this paper, an effort has been made to locate the shortest route for the convenience for these TB patients. In this paper, a mathematical model has been developed by using the method of Dijkstra’s algorithm to attain the desired objective.

Ontology-Based Transformation and Verification of UML/OCL Constraints

In Software Engineering (SE), the graphical models specify the system's architecture, connection, and characteristics. New SE methods such as MDA utilize graphical models as a nucleus of all development activities. This paper presents the transformation and verification of class diagram and Object Constraint Language (OCL) and transformation algorithm from Class model to ontology in the continuity of our research on UML and ontology integration. The class diagram is transformed into ontology, and constraints specified through OCL are transformed into SPARQL.

Analyzing Usability of Mobile Banking Applications in Pakistan

Usability is a key factor in the quality of the product, which includes ease of use, user satisfaction and the ability of the user to quickly understand the product without practice. As smartphone usage increases, most organizations have shifted their services to mobile applications, such as m-banking. Most of the people uses banking services but hesitate to use m-banking due to complex interfaces. Usability researchers concentrate on the value of design simplicity so that users can perform a particular task with satisfaction, efficiency, and effectiveness. If a mobile app lacks one of these usability features, users may get confused while using the app. This research examines the key usability issues in existing m-banking after checking the usability satisfaction level through System Usability Scale. To compare and highlight a number of usability issues, the researcher used two types of usability evaluation method 'User Testing' and 'Heuristic Evaluation'. In heuristic evaluation expert users used two M-banking apps i.e. Bank of Punjab (BOP) and MCB Islamic Bank (MIB) to evaluate them against Neilson 10 heuristics and extract the usability issues in apps. The user testing is then performed by novice users which includes tasks (translated from extracted problems by heuristic evaluation). After completion on whole testing users filled the post-test SUS’s questionnaire. The result shows that the overall success rate of the tasks was 83%, SUS score was 77 and overall relative time-based efficiency very 54.2%. The expert evaluators found 83% minor errors and 17% major errors. The finding of this paper shows usability problems and recommendations are provided to increase the usability of mobile banking applications at the end of this paper.

A QR Code Based Group Pairing Approach for Mobile Ad Hoc Networks

Due to the rapid growth of small and smart hand-held devices, mobile ad hoc networks (MANets) are becoming very common nowadays. MANets may consist of a number of small hand-held devices having limited resources in terms of memory, battery and processing power. In order to provide services to the users, these devices are capable of communicating with each other through some radio technology, such as WiFi, Bluetooth or Infrared. Since radio channels are inherently vulnerable to various security threats, it requires that devices in MANets must establish a secure association amongst themselves before exchanging any sensitive information or data. The process of establishing a secure channel between two devices is referred to as device pairing or device association. Device pairing do not rely on traditional mechanisms for security due to the impulsive and ad hoc interactions among the devices. Due to this, researchers have proposed many schemes/protocols to deal with this issue; however, the issue of group pairing (i.e. secure association of more than two devices) is less addressed issue in the literature yet. There could be many scenarios (such as confidential office meetings, paring of group of home appliances in smart-homes, etc) of MANets, where secure group communications is desired. Consequently, this research focuses on this issue and proposes a QR (quick response) code based scheme to establish a secure channel between a numbers of devices. The proposed system is implemented and tested on modern hand-held devices and a usability study of the implemented system is also carried out.

The Challenges Faced in the Collection and Disposal of Municipal Solid Waste (MSW) Management: A Case Study of Sanghar City

The rapid increase in urbanization and population, is generating massive solid waste (SW) in cities. Mismanagement of MSW collection is creating, health hazards, socio-economic problems, and deteriorating environments. This research aimed to examine the SWM problems and to identify SWM issues through the inhabitant's perspective and to propose a sustainable method to control, collect, treat, utilize and disposing of Municipal SW in Sanghar City. Hence, the objective of this study is to achieve through cluster sampling, For the residential questionnaire study, a sample size of 384 was obtained and descriptive statistics and regression and correlation analysis methods have been used to evaluate the data collected. As a result, the collection of MSW is quite inappropriate and constricted to the influential area and solid waste keeps on scattered throughout the remaining areas. In recent years, mismanagement MSW has become a major problem in Sanghar city. The key problems of SW in the city are indiscriminate disposal, improper collection, inadequate storage, and insufficient facilities. To address these issues, the management of the disposal of SW must be carried out with the complete participation of the respective communities.

Design of Isolated Micro Grid Using Renewable Energy Resources with Energy Storage System via HOMER Software A Case Study of a Thar Community

Electricity is major requirement for each individual or group to live a prosper and good life, while unfortunately in Pakistan still there are some areas which does not have provision towards this facility. The microgrid is designed to power up those rural areas of Pakistan which does not have provision of electricity via conventional means. To achieve this feat this paper presents a case study of a Thar community or small village located in Thar, Sindh, Pakistan. The small village comprises of 40 houses, some shops and a primary school. The study area having latitude and longitude of 240 52.7’ N and 700 14.4’ E respectively. The microgid consists of a Diesel Generator, Photo voltaic solar panels, Batteries and Flywheel systems. The purpose is to find the most optimal solution using different parameters via Homer optimization software.