The great potential application of wireless body network (WBN) to improve the quality of healthcare service to people was evaluated to incorporate the ultra wide band (UWB) technology to obtain the better performance of WBN stuff functionality. One of the very challenging WBN device developed is specifically applied for fetal monitoring. The designed fetal monitoring was intended for specifically applied to suitable utilized by the risk pregnant woman who has the difficult access to the hospital. Despite the many risk factors existed during the pregnancy the constructed UWB fetal monitoring system is designed to capable for sensing the fetus heart rate variability, the fetus growth and its contraction. The numerical evaluation performed was mainly focused to assess the electrical properties of the designed UWB transducer to meet the technical specification required. In practice, the transducer is in the form of patch antenna structure. The antenna was designed using the basic structure of dielectric/ substrate which consists of FR4-Epoxy material, top conducting radiator and ground. This antenna is connected by edge feeding technique that set SMA connector on the side of the dielectric material. A number of significant electrical properties improvements of the designed UWB patch transducer were found during the numerical computing stage including the radiator/transducer pattern, the S 11 , VSWR, and the gain. Through the numerical assessment it is clearly shown that the return loss (S 11 ) is very excellent to reach the value of approximately -35 dB. Considering the S 11 boundary of -10 dB value the constructed RF-waves radiating transducer is working well at the frequency range from 1.3 GHz up to 4.1 GHz (equal to the bandwidth 2.8 GHz). The best VSWR value obtained during the RF transducer numerical design is approximately 1.12. The gain achieved is 2.61 dB. The advanced fetal monitoring development will also utilizes the incorporation of the robust image processing technique to plot the woman pregnancy indicators on the display unit.
Ultra Wide Band (UWB) microstrip antenna designed using textile materials for Wireless Body Area Network (WBAN) applications is presented. The antenna consists of stairs patches and a ground plane with a dimension of 30 mm x 30 mm. Simulation is done by compared antenna performance using cotton, denim, felt and fleece materials. In this study, the parameters considered in the analysis process are the characteristics of S 11 and gain value. Numerical evaluation based on simulation shows that the antenna performance well operated in the UWB frequency standard by with the bandwidth of ≥ 500 MHz. The use of felt material produces a wider bandwidth (3900 MHz). The fleece material provided a higher gain value on 6.51 dBi at the resonant frequency of 8.5 GHz.
Robotics technology has been used in various aspects of life to make work easier. In the industrial sector, robots are used to replace human roles in order to produce more effective and efficient work. The use of robots is also carried out in jobs with a high level of risk, one of which is search and rescue (SAR). In its development, the use of robots for SAR requires high flexibility and effectiveness in carrying out movements for finding and extinguishing hotspots as well as rescuing victims. So, in this research, a movement control system will be designed for a legged robot. The robot's design consists of four legs. Each leg of the robot is integrated with three servo motors, so that each leg movement will have three degrees of freedom. Tests are carried out to determine the speed of the robot in various directions of movement by changing the rotation angle of the servo on each leg. The test results show that a legged robot can accelerate at a maximum speed of 0.066 m/s.
Electricity plays a very important role in everyday life. Most human activities are related to the use of electrical energy, including in the Campus environment. Technological advances have resulted in an increase in the consumption of electrical energy and this has resulted in reduced reserves of fossil energy sources as a result of being used up and causing emissions that can affect the global climate. The energy transition from the use of fossil energy to new and renewable energy is one solution to overcome this. Solar Power Plant (PLTS) is an alternative energy solution that is environmentally friendly that can be developed on campus. This is also supported by Indonesia's geographical location which has a very high intensity of sunlight. In this study, an analysis of the potential of electrical energy generated at Universitas Muhammadiyah Parepare Building was carried out. The research was conducted by measuring the surface voltage and temperature of solar panels for 20 days. The test was carried out for 7 hours from 10.00 WITA to 16.00 WITA. Voltage and temperature measurements were carried out in 1 hour intervals. The test results show that the average voltage value generated by solar panels is 21.31 volts. The highest average voltage value was generated at 13.00 WITA, which was 21.82 volts with an average surface temperature of 37.79 oC
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