Measurements of the sound field near an F-35B during vertical landing operations are reported. Data are presented and discussed from the approach, hover, and descent of the aircraft, and compared with ground run-up measurements. Overall levels are comparable to published values for the F-35A at 50% engine thrust ratio during ground run-ups. Onethird-octave spectra are also presented, and spectr...

The exploration of the solar system has proceeded in several phases beginning \vith fl)by missions, proceeding to orbiters, then to probes and landers and finally mobile vehicles that operate on the surface and in its atmosphere. For the most accessible plane~a~ bodies, Venus and Mars, we are no~v entering the phase of mobile exploration of the surface and atmosphere. This paper is concerned \v...

The study was aimed to update the knowledge on fish landings of inland fisheries in Basrah province, Iraq. species composition, and total landings, their trends six landing sites throughout region were evaluated during year 2020-2021. Species compositions included seven cyprinids’ species, three cichlids’ mullet’s two from sparids silurids. exotic C. carpio, tilapias auratus dominated constitut...

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...

. V. Kaul is with Jumio Inc., 1971 Landings Drive, Mountain View, CA 94043. E-mail: [email protected]. . A. Yezzi is with the School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0250. E-mail: [email protected]. . Y. Tsai is with the School of Civil and Environmental Engineering, Georgia Institute of Technology, 210 Technology Circle, Savannah, GA...

Flight test results and lessons learned are presented for a helicopter UAV low-altitude navigation and landing system. Results are given for both urban and natural settings. The navigation component uses a quasi-3D A* approach to route planning that enables maneuver through complex terrain using real-time sensor data. The landing component performs landings to sites that it determines to be saf...

The formation of ex-vessel price two important Mediterranean fisheries products (hake and red shrimp) was studied through an inverse demand approach, using data from the Catalonia bottom trawl fishery (NW Mediterranean). In both species, landings by commercial category (proxy for fish size) total determined daily fetched at auction, as summarized quantity scale coefficients (“flexibilities”) de...

Netball is a multidirectional sport afflicted by relatively high proportion of lower-extremity injuries. The purpose this study was to evaluate the relationships between landing stabilisation times, unilateral kinetics, and isokinetic knee joint torques in elite female netball players. A total 15 players volunteered for (age: 20.80 ± 1.42 years; height: 1.75 0.06 m; body mass: 71.69 13.58 kg). ...

For fisheries to be sustainable, management should account for all major sources of fishing mortality. On the Canadian side Georges Bank, landings and discards transboundary stocks Atlantic Cod Gadus morhua, Haddock Melanogrammus aeglefinus, Yellowtail Flounder Limanda ferruginea are monitored against quotas that shared by groundfish scallop (sea Placopecten magellanicus) limit The quota alloca...

Training the gymnasts to view the landing area when learning aerial skills may lead to more consistent landings but can be problematic and potentially dangerous. A virtual environment allowing gymnasts to get introduced to viewing techniques safely is presented. The system is based on existing simulation models and visualisation software, and is implemented using client-server technology to all...