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Journal articles on the topic 'Flight 712'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2025

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1

Wang, Lin Lin, and Ge Gao. "Stability Features of the Saucer-Shaped Blend-Wing-Body Aircraft." Advanced Materials Research 712-715 (June 2013): 1307–11. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1307.

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The saucer-shaped aircraft is a novel aircraft adopting blend-wing-body configuration. The linear perturbation theory based on the classic flight dynamics was used to analyze the longitudinal, lateral and directional flight qualities of the saucer-shaped aircraft under low speed conditions. The flight qualities were given. Meanwhile the aerodynamic characteristics of the saucer-shaped aircraft, the conventional aircraft and the flying wing aircraft were also contrasted to discuss their similarities and differences. The results show that the saucer-shaped aircraft has stable longitudinal mode,

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YOSHIDA, Hiroshi, Jun NAKAYA, Naoki MAEDA, et al. "712 A Reusable Hybrid Rocket System : Its Nominal Design and Flight Capability Predictions." Proceedings of Conference of Hokkaido Branch 2001.41 (2001): 252–53. http://dx.doi.org/10.1299/jsmehokkaido.2001.41.252.

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3

Ramírez-Molina, César, Olivier Heudi, Mark Pullen, and Peter S. Marshall. "Study of bradykinin metabolism by rat lung tissue membranes and rat kidney brush border membranes by HPLC with inductively coupled plasma—mass spectrometry and orthogonal acceleration time-of-flight mass spectrometry." Journal of Peptide Science 12, no. 3 (2006): 220–26. http://dx.doi.org/10.1002/psc.712.

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4

Zeng, Yao Yuan, Wen Tao Zhao, and Zheng Hua Wang. "Hybrid MPI + OpenMP Parallelization of Scramjet Simulation with Hypergraph Partitioning." Advanced Materials Research 712-715 (June 2013): 1294–97. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1294.

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As one of the most significant methods to study hypersonic flight vehicle, the numerical simulation of supersonic combustion ramjet has drawn an ever increasing attention at present. Nevertheless, the traditional serial simulation cannot satisfy the practical needs because of high calculation precision, avaricious memory overhead and overlong computation time. In this paper, we study on a general algorithm for scramjet simulation, and bring about parallelization by using a hypergraph partitioning algorithm and a two level hybrid parallel model. The whole computing domain is decomposed into sev

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Ilyakova, Anastasia V., Anzhelika S. Gonchar, Natalya I. Eremeeva, and Yulia V. Demina. "Assessment of efficiency of sanitary treatment of technological equipment at meat processing industry enterprise." Hygiene and sanitation 103, no. 7 (2024): 712–17. http://dx.doi.org/10.47470/0016-9900-2024-103-7-712-717.

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Introduction. To assess the efficiency of sanitary treatment of technological equipment at the meat processing industry enterprise, the assessment of microbial contamination of technological equipment surfaces after washing and disinfection with subsequent assessment of sensitivity of isolates of microorganisms to the used disinfectant was carried out. Material and methods. Washes from the surfaces of technological equipment were studied at the one of domestic meat-processing enterprises engaged in the production of sausage and semi-finished products from incoming meat raw materials (beef, por

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Mobley, Frank, and Steven Campbell. "Validation of acoustic directivity patterns from static and dynamic flight measurements." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, no. 1 (2022): 174–87. http://dx.doi.org/10.3397/nc-2022-711.

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Two methods have been proposed to measure the acoustic emissions for small unmanned aircraft systems (UAS): 1) dynamic flight through an outdoor microphone array, and 2) static test cell measurements. Both methods produce source directivity patterns for predicting levels where recordings had been made during dynamic flights. In autonomous flight the engine rotations-per-minute (RPM) are constantly adjusting to maintain the commanded aircraft airspeed and altitude. This violates the assumptions of stationality in acoustic emissions over a single pass that are inherent in the dynamic flight meth

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Mack, Andrew L. "Tundra to Tropics: Connecting Birds, Habitats and People.— Terrell D. Rich , Coro Arizmendi , Dean W. Demarest and Craig Thompson (editors). 2009 Proceedings of the 4th International Partners in Flight Conference, 13–16 February 2008, McAllen, Texas. Partners in Flight. 712 pp., paper; volume currently available only online at http://www.partnersinflight.org/pubs/McAllenProc/index.cfm." Condor 113, no. 2 (2011): 470–71. http://dx.doi.org/10.1525/cond.2011.113.2.470.

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Benson, Nicholas H., Roy L. Alson, Eve G. Norton, Ann P. Beauchamp, Rita Weber, and Jorge L. Carreras. "Air Medical Transport Utilization Review in North Carolina." Prehospital and Disaster Medicine 8, no. 2 (1993): 133–37. http://dx.doi.org/10.1017/s1049023x00040206.

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AbstractObjective:To perform a review of the collective experience of all hospital-based helicopter ambulances in the state of North Carolina for compliance with utilization review criteria.Design:Flight records of the six members of the North Carolina Aeromedical Affiliation for the months of November and December 1989 were compared with utilization review criteria by an independent reviewer. A secondary review was performed by a staff member for each service. Scene responses and patients flown to a hospital other than the sponsor were evaluated.Setting:All six hospital-based helicopter servi

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Nilssen, Arne C., and John R. Anderson. "Flight capacity of the reindeer warble fly, Hypoderma tarandi (L.), and the reindeer nose bot fly, Cephenemyia trompe (Modeer) (Diptera: Oestridae)." Canadian Journal of Zoology 73, no. 7 (1995): 1228–38. http://dx.doi.org/10.1139/z95-147.

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The performance of tethered flies on a laboratory flight mill was used to assess the flight capacity of Hypoderma tarandi (L.) and Cephenemyia trompe (Modeer). Maximum total flying times for H. tarandi females were 31.5 h, but most flies flew < 20 h (mean 8.5 h (SD 7.2 h)). The longest continuous flight was 12 h. For both species, mating greatly altered the flight behaviour of females. Unmated laboratory-reared females were reluctant to fly, and flew less continuously than mated wild-caught flies. Hypoderma tarandi males typically flew for short periods of a few minutes with long rests betw

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Atiković, Almir. "New Regression Models to Evaluate the Relationship between Biomechanics of Gymnastic Vault and Initial Vault Difficulty Values." Journal of Human Kinetics 35, no. 1 (2012): 119–26. http://dx.doi.org/10.2478/v10078-012-0085-6.

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The main objective of this paper was to determine the relationship between biomechanical parameters of vault flights with respect to new models of initial vault difficulty values in men’s artistic gymnastic. The study sample included vaults (n=64) and models (n=5) from the 2009 Code of Points (CoP) of the Federation International of Gymnastics (FIG). The dependent variable included all difficulty values ranging from 2-7.2 points, while the sample of independent variables included twelve biomechanical parameters. After implementing the regression analysis, it could be established that the best

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11

Turgut, Enis T. "A Novel Method to Identify the Nox Emissions of Commercial Aircraft during Descent." Applied Mechanics and Materials 110-116 (October 2011): 2148–55. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.2148.

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In this study a novel method is developed to identify the NOx emissions released from commercial aircraft during descent. In order to obtain EINOx the real flight data and ICAO emissions database are used. According to the results, statistically significant models are found and the NOx emissions produced from aircraft are calculated to be higher compared to those obtained by ICAO EINOx. Also, the effects of vertical profile, EGT and N1 are discussed. Overall, the minimum and maximum NOx emissions released from the descent of ten flights are calculated as 2.4 kg and 7.2 kg for model 3, with 1.5

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12

Tommaselli, A. M. G., and F. M. Torres. "A LIGHT-WEIGHT LASER SCANNER FOR UAV APPLICATIONS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 711–15. http://dx.doi.org/10.5194/isprsarchives-xli-b1-711-2016.

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Unmanned Aerial Vehicles (UAV) have been recognized as a tool for geospatial data acquisition due to their flexibility and favourable cost benefit ratio. The practical use of laser scanning devices on-board UAVs is also developing with new experimental and commercial systems. This paper describes a light-weight laser scanning system composed of an IbeoLux scanner, an Inertial Navigation System Span-IGM-S1, from Novatel, a Raspberry PI portable computer, which records data from both systems and an octopter UAV. The performance of this light-weight system was assessed both for accuracy and with

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Majid, Abdul, Raden Sumiharto, and Setyawan Bekti Wibisono. "Identifikasi Model dari Pesawat Udara Tanpa Awak Sayap Tetap Jenis Bixler." IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) 5, no. 1 (2015): 43. http://dx.doi.org/10.22146/ijeis.7152.

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AbstrakModel terbang merupakan bagian penting dalam pembangunan sistem kontrol suatu pesawat udara tanpa awak sayap tetap, terutama dalam pembangunan sistem kendali mandiri atau autopilot pesawat. Dengan model terbang, gerak terbang pesawat dapat direpresentasikan dan disimulasikan. Pada penelitian ini, model terbang dihasilkan melalui identifikasi sistem atau pemodelan pesawat udara tanpa awak sayap tetap jenis Bixler. Identifikasi sistem dilakukan berdasarkan eksperimen (pengambilan data terbang) dan digunakan struktur model state-space. Terdapat tiga tahapan dalam penelitian ini, pemodelan

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Tommaselli, A. M. G., and F. M. Torres. "A LIGHT-WEIGHT LASER SCANNER FOR UAV APPLICATIONS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 711–15. http://dx.doi.org/10.5194/isprs-archives-xli-b1-711-2016.

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Unmanned Aerial Vehicles (UAV) have been recognized as a tool for geospatial data acquisition due to their flexibility and favourable cost benefit ratio. The practical use of laser scanning devices on-board UAVs is also developing with new experimental and commercial systems. This paper describes a light-weight laser scanning system composed of an IbeoLux scanner, an Inertial Navigation System Span-IGM-S1, from Novatel, a Raspberry PI portable computer, which records data from both systems and an octopter UAV. The performance of this light-weight system was assessed both for accuracy and with

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15

He, Wei Ming, Guo Jing He, and Jian Qi Zhang. "Control System Designed for a Four Rotors Unmanned Aerial Vehicle." Applied Mechanics and Materials 716-717 (December 2014): 1527–30. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1527.

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In order to achieve the autonomous flight control of the quadrotor, an autonomous flight control hardware platform was set up, with a self-assembly aircraft as the body frame. The control system was designed according to the principle of quadrotor. It includes the hardware and code. A flight control model for the four rotor aircraft was established, so as to analyze and optimize the performance. Flight test was down. And the results showed that the quadrotor was able to flight stably and be well controlled.

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16

Varis, Nikke, Antti Leinonen, Jesper Perälä, Tuomo K. Leino, Lauri Husa, and Roope Sovelius. "Delayed Drowsiness After Normobaric Hypoxia Training in an F/A-18 Hornet Simulator." Aerospace Medicine and Human Performance 94, no. 9 (2023): 715–18. http://dx.doi.org/10.3357/amhp.6238.2023.

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BACKGROUND: In military aviation, due to high-altitude flight operations, hypoxia training is mandatory and nowadays is mainly done as normobaric hypoxia training in flight simulators. During the last decade, scientific data has been published about delayed recovery after normobaric hypoxia, known as a “hypoxia hangover.” Sopite syndrome is a symptom complex that develops as a result of exposure to real or apparent motion, and it is characterized by yawning, excessive drowsiness, lassitude, lethargy, mild depression, and a reduced ability to focus on an assigned task.CASE REPORT: In this study

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Zhang, Erliang, Huilun Li, Hangyu Han, et al. "Dietary Rhythmicity and Mental Health Among Airline Personnel." JAMA Network Open 7, no. 7 (2024): e2422266. http://dx.doi.org/10.1001/jamanetworkopen.2024.22266.

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ImportanceMisaligned dietary rhythmicity has been associated with metabolic diseases; however, its association with mental health remains largely unexplored.ObjectiveTo examine the association between dietary rhythms and the mental health condition of shift workers, specifically airline crew members.Design, Setting, and ParticipantsThis cross-sectional study analyzed data collected from the Civil Aviation Health Cohort of China, an ongoing large-scale health survey of pilots, flight attendants, and air security officers employed by major airline companies in China. Participants aged 18 to 60 y

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18

Hu, Jun. "Aviation Flight Attitude Control Technology." Applied Mechanics and Materials 716-717 (December 2014): 1567–71. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1567.

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This paper presents a range of two miniature spacecraft attitude Fuzzy Neural Network Sliding adaptive controller, using a weighting factor to combine indirect and direct fuzzy neural network controller fuzzy neural network controller. Interval two free parameters of fuzzy neural network adaptive sliding mode controller via output feedback control law and adaptive law be adjusted online. Simulation results show that after joining 10db Gaussian white noise, and in order to reduce the impact of external interference and noise training data, a controller with respect to the range of large amount

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19

Farida, Yuniar, Suyesti Yusi, and Dian Yuliati. "PERAMALAN JUMLAH PENUMPANG PESAWAT DI BANDAR UDARA INTERNASIONAL JUANDA MENGGUNAKAN METODE EXPONENTIAL SMOOTHING EVENT-BASED." BAREKENG: Jurnal Ilmu Matematika dan Terapan 15, no. 4 (2021): 709–18. http://dx.doi.org/10.30598/barekengvol15iss4pp709-718.

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The increase in the number of airplane passengers occurs at certain times, such as Eid al-Adha, Eid al-Fitr, and Christmas holidays. Of course, an excessive rise in the number of passengers can cause extreme flight traffic density so that which can cause flight delays, decreased airport service level performance, and other impacts. This study predicts the number of aircraft passengers at Juanda International Airport using the Exponential Smoothing Event-Based method. The Exponential Smoothing Event-Based method is a forecasting method that considers special events using the Exponential Smoothi

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20

Voloshyn, Yu O., and T. R. Korotkyi. "Flight PS 572 Crash Investigation: International Standards and Law Enforcement Reality." Bûletenʹ Mìnìsterstva ûsticìï Ukraïni 2, no. 2 (2020): 40–49. http://dx.doi.org/10.36035/2312-1831-2020-02-02-40-49.

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21

Yu, Xue Mei, Hua Zhang, and Wen Jun Zhao. "Flight Tests Data Processing in Engineering for Light Aircrafts Take-Off Performance." Applied Mechanics and Materials 716-717 (December 2014): 1084–88. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1084.

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Method to deal flight test data on take-off performance for light aircrafts was provided in this paper. Firstly, the corresponding flight test requirements of regulation CCAR23 and impact factors were analyzed. Then, subsection coefficient method, which divides take-off phrase into three sections with different mathematical model, was adopted and relevant characteristic parameters were developed by simplified these math model. Finally, the parameters which were identified and proved valuable by analyzing their feasibility were used to calculate the aircraft take-off performance, and main facto

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Ohnaka, Akira, Masatomo Ichige, Kyoshiro Itakura, Koichi Yonemoto, and Takaaki Matsumoto. "710 Flight Demonstration of Genetic Algorithm Guidance Using Unmanned Aerial Vehicle." Proceedings of Conference of Kyushu Branch 2015.68 (2015): 277–78. http://dx.doi.org/10.1299/jsmekyushu.2015.68.277.

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23

Allen, C. B. "An unsteady multiblock multigrid scheme for lifting forward flight rotor simulation." International Journal for Numerical Methods in Fluids 45, no. 9 (2004): 973–84. http://dx.doi.org/10.1002/fld.711.

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24

Ferdousi, Farhana, Shanjida Sultana, Tangin Akter, Pinakshi Roy, and Shefali Begum. "Flight muscle and flight activity of melon fly, Bactrocera cucurbitae (Diptera: Tephritidae)." Dhaka University Journal of Biological Sciences 30, no. 2 (2021): 179–85. http://dx.doi.org/10.3329/dujbs.v30i2.54644.

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The flight activity and flight muscle of the melon fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) were observed. The Tethered technique was used to observe the flight activity in this study. The flight activity, and wing and flight muscles were compared between male and female melon flies. The results indicate that the female was relatively better and strong flier than the male. The mean duration of the flight activity of the females was 13.90 min/hour and of the males was 7.12 min./hour. The mean length, width, volume of wings of the males were 6.07 mm, 2.67 mm and 10.99 mm³,

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Glavicic, Michael, Donald W. Brown, Bjørn Clausen, Thomas Sisneros та Thomas Holden. "Load-Sharing in δ-Processed Inconel 718". Materials Science Forum 777 (лютий 2014): 52–57. http://dx.doi.org/10.4028/www.scientific.net/msf.777.52.

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Time-of-flight neutron measurements have been made at 20, 400 and 650oC on δ-processed Inconel 718 in order to measure the load sharing between the γ-phase matrix and the orthorhombic δ-phase. The strain response parallel and perpendicular to the applied stress was measured for seven γ-phase reflections and five δ-phase reflections. The latter were about 50 times weaker than the former suggesting a 2.0% concentration of the δ-phase. At all temperatures the δ-phase strain becomes strongly tensile parallel to the loading direction but also exhibits plastic deformation. However, the nature of the

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Sánchez-Hernández, Cornelio, María De Lourdes Romero-Almaraz, Michael C. Wooten, Gary D. Schnell, Michael L. Kennedy, and Philip D. Sudman. "SPEED IN FLIGHT OF COMMON VAMPIRE BATS (DESMODUS ROTUNDUS)." Southwestern Naturalist 51, no. 3 (2006): 422–25. https://doi.org/10.5281/zenodo.13431475.

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(Uploaded by Plazi for the Bat Literature Project) Flight speeds of adult common vampire bats (Desmodus rotundus) were investigated in Colima, Mexico, during 2005. Individuals were captured in a small abandoned irrigation tunnel and transported to a nearby flyway (simulated cave passage) constructed in forested habitat. Using stopwatches, rates of travel were measured over a known distance. Males averaged 13.82 km/h (range 9.6 to 27.3 km/h; n ϭ 18) and females 13.36 km/h (range 7.2 to 23.4 km/h; n ϭ 29). Flight speeds of males and females were not significantly different. Contrary to some prev

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Sánchez-Hernández, Cornelio, María De Lourdes Romero-Almaraz, Michael C. Wooten, Gary D. Schnell, Michael L. Kennedy, and Philip D. Sudman. "SPEED IN FLIGHT OF COMMON VAMPIRE BATS (DESMODUS ROTUNDUS)." Southwestern Naturalist 51, no. 3 (2006): 422–25. https://doi.org/10.5281/zenodo.13431475.

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(Uploaded by Plazi for the Bat Literature Project) Flight speeds of adult common vampire bats (Desmodus rotundus) were investigated in Colima, Mexico, during 2005. Individuals were captured in a small abandoned irrigation tunnel and transported to a nearby flyway (simulated cave passage) constructed in forested habitat. Using stopwatches, rates of travel were measured over a known distance. Males averaged 13.82 km/h (range 9.6 to 27.3 km/h; n ϭ 18) and females 13.36 km/h (range 7.2 to 23.4 km/h; n ϭ 29). Flight speeds of males and females were not significantly different. Contrary to some prev

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Sánchez-Hernández, Cornelio, María De Lourdes Romero-Almaraz, Michael C. Wooten, Gary D. Schnell, Michael L. Kennedy, and Philip D. Sudman. "SPEED IN FLIGHT OF COMMON VAMPIRE BATS (DESMODUS ROTUNDUS)." Southwestern Naturalist 51, no. 3 (2006): 422–25. https://doi.org/10.5281/zenodo.13431475.

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(Uploaded by Plazi for the Bat Literature Project) Flight speeds of adult common vampire bats (Desmodus rotundus) were investigated in Colima, Mexico, during 2005. Individuals were captured in a small abandoned irrigation tunnel and transported to a nearby flyway (simulated cave passage) constructed in forested habitat. Using stopwatches, rates of travel were measured over a known distance. Males averaged 13.82 km/h (range 9.6 to 27.3 km/h; n ϭ 18) and females 13.36 km/h (range 7.2 to 23.4 km/h; n ϭ 29). Flight speeds of males and females were not significantly different. Contrary to some prev

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Sánchez-Hernández, Cornelio, María De Lourdes Romero-Almaraz, Michael C. Wooten, Gary D. Schnell, Michael L. Kennedy, and Philip D. Sudman. "SPEED IN FLIGHT OF COMMON VAMPIRE BATS (DESMODUS ROTUNDUS)." Southwestern Naturalist 51, no. 3 (2006): 422–25. https://doi.org/10.5281/zenodo.13431475.

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(Uploaded by Plazi for the Bat Literature Project) Flight speeds of adult common vampire bats (Desmodus rotundus) were investigated in Colima, Mexico, during 2005. Individuals were captured in a small abandoned irrigation tunnel and transported to a nearby flyway (simulated cave passage) constructed in forested habitat. Using stopwatches, rates of travel were measured over a known distance. Males averaged 13.82 km/h (range 9.6 to 27.3 km/h; n ϭ 18) and females 13.36 km/h (range 7.2 to 23.4 km/h; n ϭ 29). Flight speeds of males and females were not significantly different. Contrary to some prev

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Sánchez-Hernández, Cornelio, María De Lourdes Romero-Almaraz, Michael C. Wooten, Gary D. Schnell, Michael L. Kennedy, and Philip D. Sudman. "SPEED IN FLIGHT OF COMMON VAMPIRE BATS (DESMODUS ROTUNDUS)." Southwestern Naturalist 51, no. 3 (2006): 422–25. https://doi.org/10.5281/zenodo.13431475.

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(Uploaded by Plazi for the Bat Literature Project) Flight speeds of adult common vampire bats (Desmodus rotundus) were investigated in Colima, Mexico, during 2005. Individuals were captured in a small abandoned irrigation tunnel and transported to a nearby flyway (simulated cave passage) constructed in forested habitat. Using stopwatches, rates of travel were measured over a known distance. Males averaged 13.82 km/h (range 9.6 to 27.3 km/h; n ϭ 18) and females 13.36 km/h (range 7.2 to 23.4 km/h; n ϭ 29). Flight speeds of males and females were not significantly different. Contrary to some prev

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Xing, Hai Long, and Juan Li. "Flight Attitude Sliding Mode Control Design Based on the Compensation of Extended State Observer." Applied Mechanics and Materials 716-717 (December 2014): 1689–93. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1689.

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This paper proposes the sliding mode control design based on extended state observer control approch for the flight attitude system.The extended state observer (ESO) with new structure is used to estimate the total disturbance and to compensate the control object so that the flight attitude system can be simplified. Then a sliding mode controller is used to stabilize this simplified system. Finally, a numerical simulation shows the effectiveness of the proposed control design method.

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Xu, Zhen Dong, Tao Shang, Rong Min Sun, and De Ming Wang. "A Virtual Environment for Simulation of Formation Flight." Applied Mechanics and Materials 713-715 (January 2015): 263–66. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.263.

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This paper presents the design of Unmanned Aerial Vehicles (UAVs) formation flight control laws and then the virtual Environment setup of a nice structure for close formation flight. The images of the target airplane projected on the video-camera plane of the follower airplane are captured and processed into vision information The simulation setup includes airplane dynamics, autopilots and formation keeping controller and module that creates virtual environment for the simulation of the vision software called Unity3D. The UKF is applied to the relative motion estimator due to the highly nonlin

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Šútorová, Katarína, Petra Hawlová, Lubomír Prokeš, Petr Němec, Rémi Boidin, and Josef Havel. "Laser desorption ionization time-of-flight mass spectrometry of Ge-As-Te chalcogenides." Rapid Communications in Mass Spectrometry 29, no. 5 (2015): 408–14. http://dx.doi.org/10.1002/rcm.7120.

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Miyamoto, H., and M. Bertaina. "Results of the first EUSO-Balloon flight." Journal of Physics: Conference Series 718 (May 2016): 052025. http://dx.doi.org/10.1088/1742-6596/718/5/052025.

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Deng, Da Wei, and Bao An Li. "Large Unmanned Aerial Vehicle Ground Testing System." Applied Mechanics and Materials 719-720 (January 2015): 1244–47. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.1244.

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The traditional high altitude long endurance UAV ground testing system (referred to as: testing system) not only lacks of universality and scalability, also incapable of handling faculties during flying procedure. In the paper, by using the new generation of automatic test system (New ATS), the flight simulation method, embedded technology and fault diagnosis technology, we are able to expand the testing system from ground to the sky, improving the generality of the system and UAV’s testing ability, also ensure the safety and reliability of the UAV flight at the same time.Keywords: Unmanned ae

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Shen, Yuan Chuan, Jian Qiao Yu, Guan Chen Luo, and Rui Guang Yang. "Robust Gain-Scheduling Controller for Airbreathing Hypersonic Flight Vehicle." Applied Mechanics and Materials 716-717 (December 2014): 1624–30. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.1624.

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This paper addresses issues related to robust control for an airbreathing hypersonic flight vehicle. Owing to aero-propulsion couplings caused by the unique structure shape, the model of the vehicle is greatly nonlinear and complex, which presents an enormous technical challenge for control. The nonlinear model is transformed into a linear fractional transformation (LFT) model, and a robust gain-scheduling controller based on linear parameter-varying control (LPV) with full block multipliers is obtained. Simulations illustrate great improvements of the dynamic performance in closed-loop system

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Feng, Wang, Jun Feng Zhao, and Shi Yang Ma. "Design Assistant Decision Model for Parafoil Precise Airdrop." Applied Mechanics and Materials 713-715 (January 2015): 274–77. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.274.

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Decision capacity and command level is essential for accurate aerial delivery of parafoil. In this paper, we according to the system theory and the modular scheme, put forward the parafoil precision airdrop aided decision model consist ofaircraft flight route model,parafoil maneuvering performance model,high altitude wind field characteristic model, landing terrain environment model, the enemy threat situation model, complex electromagnetic environment simulation mode. Andwe focuses on the aircraft flight route model, landing terrain environment model and the simulation model of high altitude

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Yang, Xuefeng, Junyong Lu, Bai Li, Sai Tan, and Zhiqiang Xie. "Three-Dimensional Numerical Investigation of the Asymmetric Discard Characteristics of Hypervelocity Projectile Sabot." Aerospace 12, no. 3 (2025): 187. https://doi.org/10.3390/aerospace12030187.

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Sabots are vital to the successful launch of hypervelocity projectiles (HVPs), supporting and protecting the projectile’s flight body within the barrel. After the projectile exits the muzzle, aerodynamic forces induce relative motion between the sabot and the flight body, termed ‘sabot discard’. During this process, there are complex aerodynamic interactions between the sabot and flight body. These interactions impact the flight body’s flight stability and accuracy. This research focuses on an HVP with a two-segment sabot at Mach 7.2, employing the unstructured overset grid method and three-de

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Oniga, Valeria-Ersilia, Ana-Maria Loghin, Mihaela Macovei, Anca-Alina Lazar, Bogdan Boroianu, and Paul Sestras. "Enhancing LiDAR-UAS Derived Digital Terrain Models with Hierarchic Robust and Volume-Based Filtering Approaches for Precision Topographic Mapping." Remote Sensing 16, no. 1 (2023): 78. http://dx.doi.org/10.3390/rs16010078.

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Airborne Laser Scanning (ALS) point cloud classification in ground and non-ground points can be accurately performed using various algorithms, which rely on a range of information, including signal analysis, intensity, amplitude, echo width, and return number, often focusing on the last return. With its high point density and the vast majority of points (approximately 99%) measured with the first return, filtering LiDAR-UAS data proves to be a more challenging task when compared to ALS point clouds. Various algorithms have been proposed in the scientific literature to differentiate ground poin

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Markelov, V. V., A. V. Shukalov, M. O. Kostishin, I. O. Zharinov, and V. A. Nechayev. "Algorithm for Calculation of the Aircraft Navigational Flight Parameters on RNAV Routes." MEHATRONIKA, AVTOMATIZACIA, UPRAVLENIE 17, no. 10 (2016): 697–702. http://dx.doi.org/10.17587/mau.17.697-702.

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Yang, Rui Guang, Jian Qiao Yu, and Yuan Chuan Shen. "Flight Dynamic Characteristic Analysis of a Generic Airbreathing Hypersonic Vehicle." Applied Mechanics and Materials 716-717 (December 2014): 724–29. http://dx.doi.org/10.4028/www.scientific.net/amm.716-717.724.

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Because of the high speed, strong coupling between aerodynamics and propulsion system, complex environmental conditions and new propulsion system, the airbreathing hypersonic vehicles have a complex dynamics characteristic. This paper use the generic hypersonic vehicle model (CSULA-GHV) to research this issue. The nonlinear longitudinal equations of motion are linearized based on the assumption of little perturbation. Analyze the dynamic characteristic on a feature point selected. The results show that, the stability of this model is poor. It has to design an efficient controller to adjust the

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Guo, Jing, Yi Luo, Yun Feng Sui, Dan Qing Yan, and Qi Zhong. "Airport Runway FOD Detection from LFMCW Radar and Image Data." Applied Mechanics and Materials 719-720 (January 2015): 1124–31. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.1124.

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Airport runway Foreign Object Debris (FOD) jeopardizes flight safety and leads to a large amount of financial cost on flight maintenance constantly. Several FOD detection systems based on a variety of detection techniques and architectures have been developed. This paper gives a brief introduction of our FOD detection system, in comparison with FOD detection systems currently in the international market. What distinguish our system from all the others is that, our detection approach is based on both linear frequency modulated continuous wave (LFMCW) radar signal and image data. This innovation

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Wang, Zekun, Xiangxi Wen, Mingong Wu, Shidai Qiu, and Ang Li. "Research on UAV flight safety interval under wind influence." IOP Conference Series: Materials Science and Engineering 715 (January 3, 2020): 012027. http://dx.doi.org/10.1088/1757-899x/715/1/012027.

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Zhang, Yi Zhou, Si Hai Li, and Yuan Du. "Large Maneuvering Trajectory Design and Dynamic Simulation of Inertial System." Applied Mechanics and Materials 719-720 (January 2015): 482–85. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.482.

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As aviation technology continues to evolve, the function and safety of a large maneuvering have been required highly. As a large maneuvering system is becoming more and more complex , the trajectory design and simulation of a large maneuvering have become an important mean to ensure the mobile flight safety and design. The main focus of this research is to analyze the accuracy of the strapdown navigation algorithm and its impact in large motorized sport state by the large maneuvering trajectory design and its inertial system simulation. The authors build the model of the maneuvering trajectory

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Wang, Ling, Fu Xue Zhang, Xiao Hua Song, et al. "Posture Demodulation Study on Carriers Measured by a Novel MEMS Gyroscope." Advanced Materials Research 718-720 (July 2013): 989–93. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.989.

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Non-driven structure silicon micromechanical gyroscope can sense rolling, pitching and yaw angular rate of the rotating body at the same time, which is suitable for rotating body gesture detection. But this characteristic is not suitable for non-rotating flight carrier. So this study uses micro motor to provide spin angular velocity for non-driven silicon micromechanical gyroscope, and to further generate gyroscopic effect which is sensitive to the attitude information, including rolling rate, yaw angular rate and pitch angular rate of low-speed rotating or non-rotating object. The study analy

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Gao, Jia Li, Guo Qing Zhang, Le Guan, Jin Kui Chu, De Yi Kong, and Yan Tai Bi. "Structure and Mechanical Property of Asio Otus Feather Barbs." Key Engineering Materials 562-565 (July 2013): 914–19. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.914.

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Avian feather is the outstanding protein fiber structure that still lacks an interpretation generally acceptable in any detail. In this paper, asio otus feathers were morphological represented and their barbs were mechanical characterized by a developed micro-tensile tester with a load resolution of 0.25 mN and a displacement resolution of 10 nm. With a tensile loading speed at 0.02 μm/s, Young’s modulus of the flight feather barbs with length of 1450-1900 μm was calculated to be 3.13-3.66 GPa, higher than 1.47-2.04 GPa for the down feather barbs with length of 520-710 μm. It is concluded that

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Sun, Ge, Yuan Qin, Xianfeng Zheng, Yu Song, and Jingsong Zhang. "Photodissociation of HCO radical via Ã2 A″ state: Accurate determination of bond dissociation energy D0(H–CO)." Chinese Journal of Chemical Physics 37, no. 6 (2024): 857–62. https://doi.org/10.1063/1674-0068/cjcp2411146.

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The photodissociation dynamics of jet-cooled HCO radical was investigated in the region of 490 nm to 715 nm using the H-atom high-n Rydberg time-of-flight (HRTOF) technique. The CO product rovibrational state populations are well resolved in the H + CO product translational energy distributions, and an accurate H–C bond dissociation energy D0(H–CO) = 5086 ± 5 cm−1 is obtained.

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Yessengaliyev, A. G., and A. B. Mukanov. "High-precision satellite orbit propagation with estimation of the covariance matrix." BULLETIN of the L N Gumilyov Eurasian National University MATHEMATICS COMPUTER SCIENCE MECHANICS Series 141, no. 4 (2022): 6–27. http://dx.doi.org/10.32523/2616-7182/bulmathenu.2022/4.1.

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In this paper is proposed to use a model of high-precision propagation of the satellite position, in which the disturbing accelerations are determined, and the obtained numerical results are presented. All disturbing forces acting on the satellite are modeled, the up-to-date data of the parameters of the atmospheric drag model, as well as the parameters IERS, EOP are used. The developed software for satellite orbit propagation is applicable to support the flight control of the satellite, while ensuring the accuracy of the level of 10-15 meters along the position vector of the satellite over a

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Wang, Mei Hong. "Analysis of the Sports Biomechanics about Difficulty Elements of Group C in Competitive Aerobics." Advanced Materials Research 718-720 (July 2013): 1848–51. http://dx.doi.org/10.4028/www.scientific.net/amr.718-720.1848.

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The difficulty elements of group C has become an important part of the competitive aerobics with its development. The author is trying to propose a scientific method as a theoretical foundation for coaches to train. The way is to analyze both the movement time-phase about difficulty elements of the group C, and its sport biomechanics in 3 stages, which are take off, flight and landing.

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Bach, Malgorzata, Aleksandra Werner, Magda Mrozik, and Krzysztof Cyran. "A HIERARCHY OF FINITE STATE MACHINES AS A SCENARIO PLAYER IN INTERACTIVE TRAINING OF PILOTS IN FLIGHT SIMULATORS." International Journal of Applied Mathematics and Computer Science 31, no. 4 (2021): 713–27. https://doi.org/10.34768/amcs-2021-0049.

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