Research on the Contour Capture Algorithm of the Key Action of Dance with Computer-Aided

In order to solve the problem that the current key dance motion contour capture algorithm cannot effectively capture the concave part of the key dance motion contour, which leads to large contour capture error and long response time, a computer-aided key dance motion contour capture algorithm is proposed. The action sequence without background is obtained from the dance video, and the action sequence is optimized to reduce the interference of contour capture. Algorithm tracks the posture change of the object in the dance action sequence, determines the contour capture area, and completes the contour capture of the dance key action. Experimental results show that the proposed method can effectively improve the capture accuracy and shorten the response time.

Energy Optimization in a Multihop Sensor Network for a WBAN Application

Movement and posture change of human body plays a crucial role in energy consumption while data transmission between strategically deployed nodes in wireless body area networks (WBANs). The majority of energy is used in transmission rather than processing of the data. Nodes within body are there for long time and need to be energy efficient so that the network lifetime is increased. In this paper, we propose an energy efficient data transmission for multi-hop network that uses particle swarm optimization (PSO) for optimizing the parameters on which energy consumption relies. An energy efficient data transmission and reception takes place by altering the parameters like node to node distance and packet size of data. The obtained results show a significant reduction of energy consumed by reducing the packet size and keeping the node-to-sink distance a constant value. The total energy consumed per hop per bit length of data packet Emh/L shows 75% optimization. The energy consumed in data transmission per bit length of data E tx /L and the energy consumed for data received per bit length of data packet E rx /L is optimized by approximately 70% and 50% respectively for hope count 2 to 5.

Clinical Application of One-Position Complete Retroperitoneoscopic Nephroureterectomy

Objective: To explore the surgical method and the clinical efficacy of complete retroperitoneal laparoscopic radical resection of upper tract urothelial carcinoma (UTUC). Methods: A retrospective analysis of 83 patients with upper urothelial carcinoma from January 2016 to December 2019 in the Affiliated Hospital of Xuzhou Medical University was conducted. Among them, 40 patients underwent one-position complete retroperitoneoscopic nephroureterectomy (CRNU) and 43 patients underwent traditional retroperitoneoscopic nephroureterectomy (TRNU). Compare the differences in clinical data, perioperative parameters and postoperative follow-up results of patients with the two surgical methods. CTU and ureteroscopy were used to diagnose. Results: A total of 43 patients (35 males and 8 females) with TRNU were enrolled in this study. Forty patients (31 males and 9 females) received CRNU. The CRNU group had significantly shorter average operation time (105.83±5.80 min versus 147.28 ± 17.58 min) and lower visual pain score (P=0,024). No significant difference was found in age, BMI, T stage, complication, change of albumin and hemoglobin, postoperative hospital stays and tumor recurrence (P>0.05). Conclusion: one-position complete retroperitoneoscopic nephroureterectomy is safe and feasible. The curative effect is affirmative. It has the conspicuous advantages in minimally invasive, no posture change, less postoperative pain, less interference with abdominal organ and shorter operation time, which could particularly reduce the workload of operating room nurses without any additional postoperative complications.

Modelling physiology of haemodynamic adaptation in short-term microgravity exposure and orthostatic stress on Earth

Cardiovascular haemodynamics alters during posture changes and exposure to microgravity. Vascular auto-remodelling observed in subjects living in space environment causes them orthostatic intolerance when they return on Earth. In this study we modelled the human haemodynamics with focus on head and neck exposed to different hydrostatic pressures in supine, upright (head-up tilt), head-down tilt position, and microgravity environment by using a well-developed 1D-0D haemodynamic model. The model consists of two parts that simulates the arterial (1D) and brain-venous (0D) vascular tree. The cardiovascular system is built as a network of hydraulic resistances and capacitances to properly model physiological parameters like total peripheral resistance, and to calculate vascular pressure and the related flow rate at any branch of the tree. The model calculated 30.0 mmHg (30%), 7.1 mmHg (78%), 1.7 mmHg (38%) reduction in mean blood pressure, intracranial pressure and central venous pressure after posture change from supine to upright, respectively. The modelled brain drainage outflow percentage from internal jugular veins is 67% and 26% for supine and upright posture, while for head-down tilt and microgravity is 65% and 72%, respectively. The model confirmed the role of peripheral veins in regional blood redistribution during posture change from supine to upright and microgravity environment as hypothesized in literature. The model is able to reproduce the known haemodynamic effects of hydraulic pressure change and weightlessness. It also provides a virtual laboratory to examine the consequence of a wide range of orthostatic stresses on human haemodynamics.

Clinical measurement of intermalleolar distance in Western Indian population

Background: Angular deformities around the knee are one of the common basis of presentation at orthopaedic clinic and intermalleolar distance (IMD) is an essential anthropometric tool for evaluation of the angular status of the lower limb.Methods: 500 healthy (330 male and 170 female) subjects between 20 to 40 years of age were taken for IMD measurement in standing and supine position by digital vernier caliper.Results: The normal range of IMD in western Indian population in between 32-58 mm. IMD in standing position was 42.47 mm with (95% CI = 40.51 to 44.42 mm) and in supine position was 34.45 mm with (95% CI = 32.78 to 36.13 mm). Mean IMD in male in standing position was 40.01 mm while in female it was 43.74 mm observed. Statically significant difference was observed in posture change and according to age.Conclusions: Significantly higher value in female, in standing position and in higher age group were observed.

Changes in Musculoskeletal Discomfort and Postural Alignment According to the Height of the Worktable When VDT Activities were Performed by Patients in a Wheelchair with C6 and T6 Spinal Cord Injuries

Purpose: This purpose of the study was to identify the effects of computer worktable heights on musculoskeletal changes in the neck and upper extremities and postural alignment in patients with C6 and T6 level spinal cord injuries. Materials and Methods: The participants in the present study were patients diagnosed with AIS A. The level of the worktable was set 5 cm below the elbow, at elbow level, and 5 cm above elbow level. Subjective musculoskeletal discomfort (Borg-RPE) was measured at the end of the experiment. To compare the side posture for the wheelchair axle, patients with C6 and the T6 injuries were selected to measure the angle of the centerline for the axle, the tip of the chin, and the postural change for the tragus of the ear. Results: First, in the patient with C6 injuries, the Borg-RPE scores decreased when the worktable height was 5 cm above the elbow, whereas, in the patient with T6 injuries, the Borg-RPE scores decreased when the worktable height was decreased. Second, in the patient with C6 injuries, the chin tip and tragus of the ear were close to the center of the wheelchair when the height of the worktable was 5 cm above the elbow in the lateral position. In the patient with T6 injuries, there was no difference in lateral posture according to the height of the worktable. Conclusion: To reduce musculoskeletal system discomfort in patients during video display terminal (VDT) work, it is necessary to set the worktable height higher than the elbow standard for patients with C6 injuries and lower than elbow height for patients with T6 injuries. In the case of posture change, in the patient with C6 injuries, the higher the worktable height, the more the neck and head changed from forward flexion to a neutral posture.

Comparison of bus driving posture in USA and India

The aim of this project is to compare driving postures in India and the USA in order to develop seat designs to improve driver posture. The postures of 14 bus drivers from the USA and 9 from India were evaluated by RULA (Rapid Upper Limb Assessment) analysis, and various seat dimensions from India ware collected and compared with standard dimension in the USA. For both countries, low posture occurred most frequently, showing a RULA score of 3, indicating a need for posture change and further investigations. Among drivers who exhibited high posture, posture in American drivers displayed a RULA score of 4, and posture in Indian drivers showed a RULA score of 6. Furthermore, the component ratio of the high posture group in India was about 10 times higher than that of the high posture group in the USA.