objective(s): the effect of silica nanoparticles (snps) in sport shoes outsoles on the  parameters related to anterior cruciate ligament (acl) injury has not been investigated. the aim of this study was to investigate the effect of shoes outsole containing a composite of thermoplastic elastomer based on styrene-butadiene and silica nanoparticles (tpen shoe) on knee valgus angle (kva) as a risk ...

Due to the large increase in the density of aircraft arrivals at airports in recent years, it has become important to optimize the scheduling of aircraft landings in order to reduce wait time, improve airport efficiency, and minimize fuel consumption while maintaining safety. As the density of aircraft arrivals increases, however, so too does the complexity of trajectory planning and generation...

Experienced gymnasts are considered by many to be landing experts, because they are able to successfully land from heights of 3m or more (McNitt-Gray, 1993). Although gymnasts may be landing experts, their landing mechanics cannot be determined solely by optimal landing strategies because the judging system places constraints on how a landing is to be performed. Gymnasts spend many years perfec...

You've landed the perfect job, but now you must face your current employer and deliver the news that you're leaving the organization. While an exciting time, this can also certainly be a stressful one. Here are some strategies and ideas for saying goodbye to an employer that may be useful in guiding your actions. From being ready for counter-offers to downright hostility, you need to be prepare...

Autonomous landing is one of the must-have operations of unmanned aerial vehicles such as drones. In this paper we describe an approach for fully autonomous landing of AR.Drones. This approach consists of two components – identifying and recognizing a proper pattern used to mark the landing area and reaching the landing area (landing) even if small disturbances occur. We discuss possible patter...

Recently, domestic small airport development plans are being promoted centering on islands, and among them, Baengnyeong Island Airport is located very close to North Korea due its geographical characteristics. In particular, since it in the P-518, which prohibited airspace, essential configure arrival/departure flight procedure route similarly current ship terms of securing safety. Therefore, t...

Background: Mechanical occlusion of the Left atrial appendage (LAA) using a purpose-built device has emerged as an effective prophylactic treatment in patients with atrial fibrillation at risk of stroke and a contraindication for anticoagulation. A crucial step in procedural planning is the choice of the device size. This is currently based on the manual analysis of the “Device Landing Zone” fr...

The airport is an important infrastructure for air transport and urban traffic. pavement damage seriously affects the safety of aircraft take-off landing. Therefore, regular detection critical landing safety. However, small target areas, existing methods cannot effectively achieve detection. In addition, carried out under low light conditions at night, may not be able to accurately detect bound...

Background: Studies on how the shoe insole hardness regulate joint stiffness and transfer energy in the lower extremity during jump landing are scarce. The current study aimed to determine the effectiveness of shoe insole changes in joint power and stiffness during landing from jumps. Methods: Fifteen healthy male athletes volunteered to perform jump-landing in various shoe insole conditions. ...

Flight safety plays a critical role in both the national economy and military defense. According to National Transportation Safety Board (NTSB), highest number of aircraft accidents between 2013 2018 occurred during takeoff (24%) landing (40%). To model obstruction zone based on building density its impact flight safety, this study utilizes remote sensing data from Sentinel 2A 2022. The is anal...