This paper presents a monolithic novel polydimethylsiloxane-based dual-channel bellows-structured pneumatic actuator, fabricated through sacrificial molding technique. A finite element analysis was performed to find the optimal structure and analyze bending performance of square-bellows actuator. The actuator designed with an overall cross-sectional area 5 × mm2, while its structural parameters were characterized in terms 8, 12, 16 20 number bellows. models using acrylonitrile butadiene...

Over recent years, the reseach in field of soft actuation has been extensively increased for achieving more complex motion path with smooth, high flexible movement and generated force at minimum operating pressure. This paper presents study on gripping capability actuators applied glove-type finger exoskeleton, developed motivation to assist individuals having weak ability their rehabilitation exercise towards hand function restoration. The exoskeleton utilizes five cylindrical shaped...

In this paper, metallic thermoelectric generators were studied and fabricated using copper (Cu) cobalt (Co) as their respective positive negative thermoelements. Thus, the chosen Cu-clad polyimide substrate alleviated deposition of Cu eased microfabrication. A lateral device structure might assist in generating larger output power through its longer thermoleg length. Hence, thick-film devices had planar structures with heat flow thermopile layout. The strong correlations electrical thermal...

As one of the most important characteristics soft actuators, bending motion has been widely used in field robotics to perform different manipulation and tasks. In this study, we design silicone rubber material based actuators consisting single dual chambers, a bellows structure. Several models were designed, simulated analyzed using finite element analysis (FEA) software MARC®, order understand structured actuator with chambers optimize performance actuators. The results confirm that...

Piezo-actuated micropositioning stages consist of a piezoelectric actuator that operates positioning system. Hysteresis nonlinearity is one the significant variables limiting precision these stages. This paper introduces technique developing hybrid controller for precise tracking Bouc-Wen nonlinear hysteresis model utilized to denote phenomenon piezo-actuated A observer-based feedforward designed based on Luenberger observer. then coupled with particle swarm optimization (PSO)-based...

This paper reports a geometrical analysis and tuning-approach for diffuser-nozzle elements valveless micropumps. Finite element studies are performed in order to investigate the impact of angle, curvature ratio, length diffuser on pumping efficiency. Parametric sweep implemented at Reynolds number (Re) values ranging from 10 100 while observing pressure coefficients nozzle directions, as well flow separation resultant efficiency diffuser. The results suggest that with an angle 10° ratio 0.4...

Covid-19 is a highly contagious virus spreading all over the world. It caused by SARS-CoV-2. virus. Some of most common symptoms are fever, cough, sore throat, tiredness, and loss smell or taste. There two types tests for COVID-19: PCR test antigen test. Automatic detection from publicly available resources essential. This paper employs commonly chest x-ray (CXR) images in classification Covid-19, normal viral pneumonia cases. The proposed method divides CXR into subblocks computes Discrete...

This paper presents a novel polydimethylsiloxane-based dual-channel bellows-structured pneumatic actuator, fabricated through sacrificial molding technique. A finite element analysis was performed to find the optimum structure and analyze bending performance of square-bellows actuator. The actuator using acrylonitrile butadiene-styrene-based mold form channel bellow structures with an overall size 5 × 27.6 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

The farming of ground birds requires extensive labor for the timely feeding and watering birds, in addition to cleaning their manure. An autonomous system can not only reduce costs but also ensure automatic watering. Moreover, IoT connectivity help farmer keep an eye on while physically being away from site. Inspired by this concept, study presents design implementation a smart cage birds. A sensors based ambient temperature air quality monitoring system, mechatronic egg collection manure...

Overconsumption of food can result in environmental pollution, making it a particularly concerning issue modern civilization. In Malaysia, waste is generated at rate 16,688 tonnes per day. Despite its biodegradation properties and strong composting potential, about 80% still disposed landfills. Air, soil water pollution are risks often associated with disposal. Since two-thirds total avoidable, preventing the rise household should be top priority, among which through composting. This project...

Quantifying finger strength during Activities of daily living (ADLs) and the improvements observed in individuals undergoing physical therapy due to stroke or arthritis can provide valuable insights into hand function. The developed real-time IoT-based glove for monitoring is an instrumented device that incorporates Internet Things technology. This includes utilizing ESP8266 Wi-Fi module connect selected IoT analytics platform, Blynk, Arduino microcontroller as main control unit. features a...

Quantifying finger strength during Activities of daily living (ADLs) and the improvements observed in individuals undergoing physical therapy due to stroke or arthritis can provide valuable insights into hand function. The developed real-time IoT-based glove for monitoring is an instrumented device that incorporates Internet Things technology. This includes utilizing ESP8266 Wi-Fi module connect selected IoT analytics platform, Blynk, Arduino microcontroller as main control unit. features a...

&lt;span&gt;This paper presents a study on bending and rotational properties of two-chambers soft actuator for underwater application. Previous demonstrated the characteristics required to optimize performance its potential perform because material. However, there is less as well how tips rotating during motion. In this paper, three tests have been proposed which are comparisons angle simulation experiment in air environment, environment tip environment. The measured based displacement...

This paper presents a motorbike-based custom made scanning and mapping system for surveying slums highly populated urban regions. These vicinities are difficult to reach through standard vehicular systems require compact solution as presented in this paper. The consists of two small range 2D Hokuyo laser scanners mounted right angle orientations capture the environment. In addition, global positioning system, wheel encoder, inertial measurement unit, cameras have been integrated with...

Novel coronavirus (COVID-19) is a new strain of coronavirus, first identified in cluster with pneumonia symptoms caused by SARS-CoV-2 virus. It fast spreading all over the world. Most infected people will develop mild to moderate illness and recover without hospitalization. Currently, real-time quantitative reverse transcription-PCR (rqRT-PCR) popular for detection due its high specificity, simple analysis, higher sensitivity than conventional RT-PCR. Antigen tests are also commonly used....

Estimating the line parameters of a two-terminal transmission from synchrophasor measurements is useful for accurate representation lines in power system simulation studies. This paper evaluates three such methods, namely, pointwise method, least-square estimation method and new mean-filter based parameters. It presents application test results these methods archived field Southern California.