The selection of biomaterials for bearing in total hip arthroplasty is very important to avoid various risks primary postoperative failure patients. current investigation attempts analyze the Tresca stress metal-on-metal bearings with three different materials, namely, cobalt chromium molybdenum (CoCrMo), stainless steel 316L (SS 316L), and titanium alloy (Ti6Al4V). We used computational simulations using a 2D axisymmetric finite element model predict stresses under physiological conditions...

Children with autism spectrum disorder (ASD) have challenging behaviors, which are associated difficulties in parenting. Deep pressure is a therapeutic modality occupational therapy, and it was reported to produce calming effect. This study aimed determine whether the short-term use of an hug machine portable seat (AHMPS) improves behavioral neurobiological stress children ASD, AHMPS inflatable wrap or manual pull more effective. enrolled ASD who were administered (group I) II) for 20 min...

Traveling with children autism can be very challenging for parents due to their reactions sensory stimuli resulting in behavioral problems, which lead self-injury and danger themselves others. Deep pressure was reported have a calming effect on people autism. This study designed investigate the physiological of deep pressure, is an hug machine portable seat (AHMPS) spectrum disorders (ASD) public transportation settings. The conducted 20 ASD (16 boys 4 girls) at Semarang Public Special...

The study of contact mechanics is rapidly expanding in scope and importance. However, most studies spherical do not spend significant time comprehensively analysing PEEQ, especially the effect friction coefficient diameter ratio. This aims to introduce comprehensive research examining ratio influencing equivalent plastic strain (PEEQ) during between two brass solids. In this study, finite element method analysed an elastic-perfectly material. model was hemispheres with ratios ranging from 1...

Deep pressure therapy treats anxiety by triggering physiological responses and promoting calmness. Moreover, measuring user comfort can improve product quality.

Ultra-High Molecular Weight Polyethylene (UHMWPE) is one of the most widely used biomaterials for applications in field medical devices, especially implants. The use these materials together with metal combination total hip arthroplasty as hard-on-soft. Although this has been adopted, long-term adverse effects UHMWPE are a concern implant users. selection right material counterpart crucial to minimize risk patient. Three types materials, namely Cobalt Chromium Molybdenum (CoCrMo), Stainless...

Objectives: This study aimed to evaluate the subjective acceptability and physiological response of an inflatable vest as a wearable device stimulate calming effects. Methods: A Visual Analogue Scale (VAS) was used measurement electroencephalogram (EEG) objective/physiological measurement. Results: The results showed that scores 30 male participants rated prototype 'excellent' device, with average score 81. An increase in theta (4–8 Hz) frequency band most noticeable change EEG, which...

Introduction: This study presents a novel weighted vest integrated with vibrotactile stimulation for deep pressure therapy. Following the principles of Morrison's research, we assessed its effectiveness in calming users four distinct vibration patterns. Method: Ten male participants without ASD history, aged 19-25 and weighing 48-73 kg, provided subjective evaluations using Comfort Rating Scale (CRS). Result: Results showed that reported increased calmness after device, as evidenced by...

Penelitian ini bertujuan untuk mengevaluasi grid independence dalam simulasi Finite Element Method (FEM) pada geometri Lumbar 4, dengan fokus hubungan antara ukuran elemen, deformasi hasil, dan kebutuhan sumber daya komputasi. Proses dilakukan menggunakan perangkat lunak ANSYS Workbench 2023 melibatkan rekonstruksi model 3D dari data CT scan. Hasil penelitian menunjukkan bahwa elemen sebesar 1,0 mm merupakan mesh yang ideal simulasi. Ukuran lebih kecil hanya meningkatkan biaya komputasi...

ABSTRACT Background and Aims Mental neurological disorders are a growing global concern, further intensified by the COVID‐19 pandemic. Stress management techniques, such as deep pressure therapy, have gained attention, with weighted vests commonly used for anxiety relief. However, there is limited scientific evidence supporting their efficacy. This study aimed to rigorously assess effectiveness of vest incorporating vibrotactile stimulation in reducing measuring physiological...

This preliminary study proposes to investigate (i) the mean comfortable deep pressure of Autism Hug Machine Portable Seat (AHMPS) manual pull and inflatable wrap models; (ii) effect using AHMPS in reducing anxiety children with autism spectrum disorder (ASD). The first phase was done determine comfort test. Fifteen healthy adolescents (13 men 2 women; aged 19-25 years) individuals volunteered participate test determining AHMPS, both pull, wrap. second completed ASD, which comforting from...

Abstract The paper available of total hip arthroplasty is still concerned with the external factors implant user, but internal factor that user’s body weight has not deeply understood. Our research presents deformation analysis different loading conditions based on patient’s mass index category. 2D model selected to conducting numerical CoCrMo-on-CoCrMo giving vertical load from category index, namely underweight, normal, overweight, and obese class I, II, III using finite element...

This investigation aims to wear analyze of acetabular cup on metal-on-metal total hip arthroplasty with and without dimple addition. Our contribution that present in this paper is explore the effect surface texturing application reduce important for implant's survival. Finite element method using 3D human's joint loading under normal walking conditions. Updating geometry also consider more realistic simulation result. Wear prediction performed one year from implant equal 1x106 gait cycle....

Abstract The prevalence of autism in Indonesia was estimated approximately 2.5 million people. There are at least 500 new cases diagnosed annually. Self-injurious behaviour is one the most autistic children. Only a few studies had been done regarding issue. Therefore, this study aims to design hug machine portable seat for children, called Autism Hug Machine Portable Seat (AHMPS), which can be used public transportation (bus and train) provide safety comfortability therapeutic aid with deep...

This research focuses on enhancing the control system of commercial inflatable vest to optimize pressure regulation for deep therapy (DPT) in children with autism spectrum disorder (ASD). The main goal is provide a safe and reliable DPT experience calming effects. proposed incorporates feedback loop mechanism maintain desired level includes safety features prevent overinflation. study dis-cusses development system, covering both hardware software components. Experimental results demonstrate...

Individu dengan kondisi kesehatan tertentu, seperti gangguan integrasi sensorik/sensory integration disorder (SID) dan spektrum autisme/autism spectrum (ASD) sering mengalami pengalaman yang menantang kewalahan terhadap situasi baru, jika dipicu dapat berubah menjadi hiperarousal kecemasan. Deep pressure telah digunakan sebagai metode terapeutik untuk mengurangi masalah tersebut. Studi ini mencari potensi keuntungan dari terapi deep tujuan menerapkan pendekatan baru menilai efek menenangkan...

Electric road sweepers often face damage to wire broom components due manual operation errors, particularly when navigating obstacles like speed bumps. To mitigate this, an automatic arm lifting system using proximity sensors was developed enhance efficiency and extend lifespan. This study focused on designing the wiring, determining optimal sensor detection distances, assessing angle inclinations for electric sweeper prototype. Functional testing determined that Sensor A should be placed 60...