Many people experience vibration effects on whole-body throughout their lives frequently. Vibrating energy absorbed is exposed all-body caused with vibration hazard in the vertically on body and biodynamic responses from body in speed 2.37 to 5.14 m/s could captivate with car seat on user body, so the vibration energy transferred to a seated people body. In this paper, the human body is modeled...

The hot gases produced by the internal combustion engines passes through the exhaust valve and causes high temperatures in the exhaust valve and its seat. To avoid damaging the exhaust valve, heat must be transferred from the valve to its seat during the contact they make at the opening and closing cycle. Heat transfer rate from the exhaust valve to its seat is a function of many factors. One o...

OBJECTIVE To digitally model (three-dimensional, 3D) the course of the pudendal arteries relative to the bony pelvis in the adult male, and to identify sites of compression with different bicycle riding positions as a potential cause of penile hypoxia and erectile dysfunction. SUBJECTS AND METHODS 3D models were made from computed tomography scans of one adult male pelvis (a healthy volunteer...

OBJECTIVE Many modern cars have seat belt reminders (SBRs) using loud and clear sound and light signals. These systems have developed over the last few years. This study investigates how these modern systems influence the seat belt use in real-life traffic in built-up areas in some European cities. METHODS The data were collected by field observations in major cities in six European countries...

during centuries, humans have changed their environment into a perspective of cultural heritage using tact and wisdom. these perspectives that show the legacy of human civilization, have established a long cultural relationship via safety international pathways. hence, investing for maintenance of critical infrastructures which is the safe way, seems to be necessary. the main problem is not the...

OBJECTIVES To monitor preterm infants in a cot and a car seat and compare an observed car seat trial with polysomnography (PSG). DESIGN Non-randomised controlled trial. SETTING Regional neonatal unit. PATIENTS Preterm infants before discharge. INTERVENTIONS Nap PSG respiratory and sleep variables were measured including gastro-oesophageal pH. Nurse observations included respiratory dist...

BACKGROUND Driving has been associated with signs and symptoms caused by vibrations. Sitting causes the pelvis to rotate backwards and the lumbar lordosis to reduce. Lumbar support and armrests reduce disc pressure and electromyographically recorded values. However, the ideal driver's seat and an optimal seated spinal model have not been described. OBJECTIVE To determine an optimal automobile...

In this paper, we propose modifications to LaRSA a fast exact algorithm for the allocation of seat for the EU Parliament. This improvement shall reduce its run time by a considerable amount. Further, we apply this modified version of LaRSA which uses the concept of degressive proportionality on the seat allocation system in Joint Entrance Examination(JEE), India. This modified algorithm takes a...

A newly developed work seat for industrial sewing operations was compared with a traditional sewing work seat to evaluate the effectiveness of design features. The new seat was designed with special seat-pan and backrest features to accommodate the musculoskeletal geometry of a low sit-stand posture. The seat-pan consisted of a pelvic support which supported the ischial tuberosities and areas b...

Manipulating seat configuration (i.e., seat tube angle, seat height and pelvic orientation) alters the bicycle-rider geometry, which influences lower extremity muscle kinematics and ultimately muscle force and power generation during pedaling. Previous studies have sought to identify the optimal configuration, but isolating the effects of specific variables on rider performance from the confoun...