This study introduces an integrated lower limb robotic orthosis with near-field electrospinning (NFES) piezoelectric sensors and a fuzzy logic-based gait phase detection system to enhance mobility assistance rehabilitation. The exoskeleton incorporates embedded pressure within the insoles capture ground reaction forces (GRFs) in real-time. A logic inference processes these signals, classifying phases such as stance, initial contact, mid-stance, pre-swing. NFES technique enables fabrication...

We tested the hypothesis that intracavernous injection of vascular endothelial growth factor (VEGF) can restore erectile function in a rat model traumatic arteriogenic dysfunction.Exploration bilateral internal iliac arteries was performed 50, 3-month-old male rats. A total 44 rats underwent ligation and 6 exploration only served as sham operated group. Minutes later phosphate buffered saline (PBS) plus bovine serum albumin 16 rats, 2 microg. VEGF PBS BSA 12 4 performed. At weeks 1, about...

This study proposed a composite tibia defect scaffold with radial gradient porosity, utilizing finite element analysis to assess stress in the tibial region significant critical-sized defects. Simulations for scaffolds different porosities were conducted, designing an optimal porosity repairing and replacing critical bone Radial resulted more uniform distribution, reducing titanium alloy stiffness alleviating shielding effects. The was manufactured using selective laser melting (SLM)...

This study proposes a bile duct stent based on indirect 3D printing technology. Four ratio materials were synthesized from lactic acid (LA) and glycolide (GA) monomers by melt polymerization: PLA, PLGA (70:30), (50:50), (30:70). The four kinds of material powders preliminarily degraded, the appearance was observed with an optical microscope (OM) camera. weight changed significantly after weeks degradation, which met conditions for to be degraded within 4-6 weeks. Among them, (50:50) lost...

In today’s high-order health examination, imaging examination accounts for a large proportion. Computed tomography (CT), which can detect the whole body, uses X-rays to penetrate human body obtain images. Its presentation is high-resolution black-and-white image composed of gray scales. It expected assist doctors in making judgments through deep learning based on recognition technology artificial intelligence. used CT images identify bladder and lesions then segmented them The achieve high...

This paper presented the mechanical design and control of a lower limb rehabilitation exoskeleton named “the second (LLRE-II)”. The with lightweight mechanism comprises 16-cm stepless adjustable thigh calf rod. LLRE-II weighs less than 16 kg has four degrees freedom on each leg, including waist, hip, knee, ankle, which ensures fitted wear comfort. Motors harmonic drives were installed joints hip knee to operate exoskeleton. Meanwhile, master slave motor controllers programmed using Texas...

Background/Objective: This study aims to utilize advanced artificial intelligence (AI) image recog-nition technologies establish a robust system for identifying features in lung computed tomog-raphy (CT) scans, thereby detecting respiratory infections such as SARS-CoV-2 pneumonia. Spe-cifically, the research focuses on developing new model called Residual-Dense-Attention Gates U-Net (RDAG U-Net) improve accuracy and efficiency identification. Methods: employed Attention U-Net, Res newly...

A novel piezoelectric fiber sensor based on polyvinylidene fluoride (PVDF) doped with graphene is presented. The near-field electrospinning technology was used for developing the sensor. uniform experimental design method introduced to determine ranges of parameters, including applied voltage, drum speed range, doping ratios from 0% 11 wt% in PVDF solution, and electrode gap. By results, conductivities solutions different increased 19.6 μS/cm 115.8 μS/cm. Tapping tests were performed measure...

This paper presents the design and implementation of fuzzy logic control for human walking using lab-developed sensors second lower limb robotic exoskeleton (LLRE-II) to detect gait phases. A piezoresistive tactile sensor (PRTS) was developed used measure foot pressure predict behavior. The proposed with grid structures then fabricated polymer composites multi-walled carbon nanotubes (MWCNTs) combined polydimethylsiloxane (PDMS). doping ratio structure were optimized achieve a good sensing...

This study fabricated piezoelectric fibers of polyvinylidene fluoride (PVDF) with graphene using near-field electrospinning (NFES) technology. A uniform experimental design table U*7 (7^4 ) was applied, considering weight percentage (1-13 wt%), distance between needle and disk collector (2.1-3.9 mm), applied voltage (14.5-17.5 kV). We optimized the parameters electrical property measurements Kriging response surface method. Adding 13 wt% significantly improved conductivity, increasing from...

This study fabricated piezoelectric fibers of polyvinylidene fluoride (PVDF) with graphene using near-field electrospinning (NFES) technology. A uniform experimental design table U*774 was applied, considering weight percentage (1-13 wt%), the distance between needle and disk collector (2.1-3.9 mm), applied voltage (14.5-17.5 kV). We optimized parameters electrical property measurements Kriging response surface method. Adding 13 wt% significantly improved conductivity, increasing from 17.7...

This report describes our experience providing nursing care between 7th October and November 2016 to a homosexual male who repeatedly engaged in stress-related suicide attempts self-harm. Information was collected using comprehensive assessment, observation, interviews the health problems of ineffective coping disabled family were identified. Because affection-related distress lack recognition his gender orientation by family, client self-harm attempted on several occasions order cope with...

For the improvement of precision engineering, a motion is one key issues. The goal this paper to establish stage. Four linear motors are used noncontact table avoid influence friction, and two-dimensional planar encoder employed as feedback sensors. In order accomplish ultra motion, PDFF (pseudo derivative with feed-forward) controller used. Compared normal PI controller, simulation results show that can perform better than not only in running step but also dynamic trajectory.

Due to the highly improvement of precision engineering, a positioning stage which can perform motion has become one main issues in this area. The paper presents single layer driven by four permanent magnet linear synchronous motors. also uses air bearings reduce friction. A MIMO variable structure controller is designed tracking control stage. By inherent robustness controller, simulations show that track trajectory precisely and reject disturbance introduced thrust ripples.

We present a case of malignant lymphoma the prostate. A 73-year-old man was admitted due to constipation and urinary retention for several days. After serious evaluation genitourinary gastrointestinal tracts, CT scan showed huge homogeneous, soft tissue mass in right lower pelvic cavity with lymph nodes enlargement at left iliac common femoral regions, while indistinct margin related anterior wall rectum noted. Transurethral resection prostate performed pathology diffuse large B-cell...

The aim of this study is to create an economical automatic machining system predict surface roughness during processing, which important quality criterion. Complex network accelerators and software acceleration are used achieve real-time calculations. When the expected results not obtained, turning tool changed or processing halted. can maximize efficiency. In study, a deep neural plane, sensors installed at different positions effects numbers on accuracy. accuracy obtained 92.3%.

Leiomyomas of the prostate gland are very rare in spite fact smooth muscle as troma constitutes a significant proportion normal prostate. with mitiotic figures even rarer. We recently treated, by transurethral resection prostate, seventy-year-old man, who presented symptoms urinary obstruction. The histolotgic finding is leiomyoma mitotic figures.