Indoor Navigation for Visually Impaired / Blind People Using Smart Cane and Mobile Phone: Experimental Work

This paper suggests a navigation structure for visually impaired/blind people. The proposed structure is consisted of builder simulator, smart phone with built-in compass and cane. The aim is to guide visually impaired/blind people from a required location to a desired location. Multi tests are run where modeled in C sharp and java languages and MATLAB program using A* algorithm. Experimental results show good performance for the proposed scheme that the visually impaired/blind people reach the desired location successfully without error. In conclusion, A* path finding algorithm using C sharp language for builder simulator, and java language for smart phone, were valid and reliable methods to guide the visually impaired / blind people from a required location to a desired location in indoor environment with or without obstacles. Keywords: Smart phone, built in compass, cane, planning the path, avoidance obstacles, visually impaired/blind people, A* algorithm, path finding, and indoor navigatio

Efficient energy for one node and multi-nodes of wireless body area network

Compression sensing approaches have been used extensively with the idea of overcoming the limitations of traditional sampling theory and applying the concept of pressure during the sensing procedure. Great efforts have been made to develop methods that would allow data to be sampled in compressed form using a much smaller number of samples. Wireless body area networks (WBANs) have been developed by researchers through the creation of the network and the use of miniature equipment. Small structural factors, low power consumption, scalable data rates from kilobits per second to megabits per second, low cost, simple hardware deployment, and low processing power are needed to hold the wireless sensor through lightweight, implantable, and sharing communication tools wireless body area network. Thus, the proposed system provides a brief idea of the use of WBAN using IEEE 802.15.4 with compression sensing technologies. To build a health system that helps people maintain their health without going to the hospital and get more efficient energy through compression sensing, more efficient energy is obtained and thus helps the sensor battery last longer, and finally, the proposed health system will be more efficient energy, less energy-consuming, less expensive and more throughput

8-HQCdCl2H2O as an organic Q-switcher in erbium laser cavity*

This paper demonstrated a Q-switched erbium-doped fiber laser (EDFL) using an organic saturable absorber (SA) based on 8-HQCdCl2H2O material. The organic thin film was prepared using the casting process. The proposed Q-switched EDFL has a maximum repetition rate of 143 kHz, minimum pulse duration of 1.85 µs and the highest pulse energy of 167 nJ. The Q-switched peak laser was at a central wavelength of 1 531 nm with a 3 dB bandwidth of 3.52 nm and power intensity of 2.64 dBm

Effects of service marketing mix on Umrah customer satisfaction: empirical study on Umrah traveling industry in Malaysia

The objective of this research was to The purpose of this research was to study the customer perception toward marketing mix (product, price, place, promotion, people, process, physical evidence, marketing communication and after sale service), and customer satisfaction of Umrah traveling industry in Malaysia”. “A quantitative study was adopted for collecting data. The customers who performed Umrah more than once were on the focus of this study. The necessary data were collected from 384 respondents through a structured questionnaire using a convenience sampling technique”. “Customer perception toward all dimensions service marketing mix have a positive impact on customer satisfaction. The present study enables the understanding of consumer behavioural features, especially in term of customer satisfaction in Umrah services, particularly in Malaysia and the overall Umrah industry”. “The service sector plays a pivotal role in a country’s economy specifically in Malaysia and part of this sector services is the Umrah services, becomes it is important for commercial activities and contributes to the quality of life. In short, it implies that the role of Umrah services is regarded as a basic need of life”. “Thus, it is imperative to fulfil the requirements and expectations of customers in multifarious backgrounds. This study is an initial effort in investigating the satisfaction of Umrah customers in Malaysia, including their contributing factor, name service marketing mix

Effect of combined Ce and Er Addition on Solidification, Microstructure of the Al-7Si-alloy

This paper highlights the effects of the additions of two rare earth elements (REEs) (Ce and Er) on microstructure and to investigate the characteristic temperatures during solidification of the modified alloy. Five changes of Al-7Si alloys with xEr+xCe additions (x=0.15, 0.25, 0.4, 0.5 and 0.75) were produced by casting technique via the solidification parameters examined using computer-aided cooling curve thermal analysis (CA-CCTA). The thermal analysis tests were carried out for each one by using a thermal analysis system that includes (K-type Thermocouple, EPAD-TH8-K, EPAD-Baes2 and Laptop with Dewesoft-7.5-Lt). To estimate the change in microstructure and solidification as a result of adding (Ce+Er) additions, the obtained result showed that the growth TG Al-Phase and nucleation TN Al-Phase temperatures decreased to lower temperatures 614.7°C and 615.5°C respectively as the amount Ce, Er increased

TWGH: A Tripartite Whale–Gray Wolf–Harmony Algorithm to Minimize Combinatorial Test Suite Problem

Today’s academics have a major hurdle in solving combinatorial problems in the actual world. It is nevertheless possible to use optimization techniques to find, design, and solve a genuine optimal solution to a particular problem, despite the limitations of the applied approach. A surge in interest in population-based optimization methodologies has spawned a plethora of new and improved approaches to a wide range of engineering problems. Optimizing test suites is a combinatorial testing challenge that has been demonstrated to be an extremely difficult combinatorial optimization limitation of the research. The authors have proposed an almost infallible method for selecting combinatorial test cases. It uses a hybrid whale–gray wolf optimization algorithm in conjunction with harmony search techniques. Test suite size was significantly reduced using the proposed approach, as shown by the analysis of the results. In order to assess the quality, speed, and scalability of TWGH, experiments were carried out on a set of well-known benchmarks. It was shown in tests that the proposed strategy has a good overall strong reputation test reduction size and could be used to improve performance. Compared with well-known optimization-based strategies, TWGH gives competitive results and supports high combinations (2 ≤ t ≤ 12)

TWGH: A Tripartite Whale–Gray Wolf–Harmony Algorithm to Minimize Combinatorial Test Suite Problem

Today’s academics have a major hurdle in solving combinatorial problems in the actual world. It is nevertheless possible to use optimization techniques to find, design, and solve a genuine optimal solution to a particular problem, despite the limitations of the applied approach. A surge in interest in population-based optimization methodologies has spawned a plethora of new and improved approaches to a wide range of engineering problems. Optimizing test suites is a combinatorial testing challenge that has been demonstrated to be an extremely difficult combinatorial optimization limitation of the research. The authors have proposed an almost infallible method for selecting combinatorial test cases. It uses a hybrid whale–gray wolf optimization algorithm in conjunction with harmony search techniques. Test suite size was significantly reduced using the proposed approach, as shown by the analysis of the results. In order to assess the quality, speed, and scalability of TWGH, experiments were carried out on a set of well-known benchmarks. It was shown in tests that the proposed strategy has a good overall strong reputation test reduction size and could be used to improve performance. Compared with well-known optimization-based strategies, TWGH gives competitive results and supports high combinations (2 ≤ t ≤ 12)

A review of localization algorithms based on software defined networking approach in wireless sensor network

Wireless Sensor Network (WSN) localization is an important challenge, because A strong relationship between aggregation sense data and the location of data's origin. Software Defined Networks (SDN) technique is support localization algorithm and take into account all network's limitations and constraints. By making use of global network knowledge provided by SDN controller, the results of previous studies show that considerable improvement in network performance can be achieved. This paper explores the recently proposed localization algorithms and discusses the simulation results for each method used in Software Defined Wireless Sensor Networks (SDWSN) to find the best way to localized nodes with the highest accuracy and lowest energy consumption. This paper also present Software defined networking paradigm and WSNS challenges which solved by SDWSNs

Improved airborne computer system strategy for swarm drones flying based on skybrush suite and inspired technique

In airborne swarm drones, there are a significant impact on daily life as a result of air advances in electronic communications. There are different types of UAVs (Unmanned Air Vehicles) being developed as possible. In this research, the ARDUPILOT or the so-called ARDUCOPTER is simulated as firmware with a MAV link (Micro Air Vehicle Communication Protocol) that is connected to the Skybrush through the communication layer. Where a swarm of drones consisting of 20 drones was studied and 3D displays were created in the drones taking into account the frequency of 2.4 GHz and the distance between the drones to avoid collisions that occur in the paths of the drones by using PSO (Particle Swarm Optimization) algorithm which happens in the swarm of drones. The trajectory of drone 5493 and a number of ports 9195 were obtained from the proposed system

Facial Emotion Recognition: A Survey

Emotion could be expressed through unimodal social behaviour’s or bimodal or it could be expressed through multimodal. This survey describes the background of facial emotion recognition and surveys the emotion recognition using visual modality. Some publicly available datasets are covered for performance evaluation. A summary of some of the research efforts to classify emotion using visual modality for the last five years from 2013 to 2018 is given in a tabular form.</p