Results 91 to 100 of about 88,513 (307)

Aerodynamic coefficients of a ski-jumper

Российский журнал биомеханики, 2002
Основной проблемой в математическом моделировании прыжка на лыжах с трамплина является определение аэродинамических коэффициентов системы лыжниклыжи. Известно экспериментальное определение их в работе [1] для стиля прыжков 1950-х и 1960-х годов. В работах [2,3] обдувался манекен и исследовался современный V-стиль. Однако, в этих работах приводится лишь
Podgayets, A., Rudakov, R., Tuktamishev, V., Kerov, R., Shvetsov, B.   +4 more
openaire   +1 more source

Association of CDKN2A/B Homozygous Deletion and Extent of Resection With Survival of Patients With WHO CNS5 Grade 4 Astrocytoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives WHO grade 4 astrocytomas are associated with poor prognosis, and their prognostic factors remain controversial. This study aimed to identify the prognostic factors and develop a management algorithm for these patients. Methods This study retrospectively included 151 CNS5 adult grade 4 astrocytomas from two medical centers.
Jiawei Cai, Guanglin Zhu, Qiu He, Chen Luo, Lingyun Zhuo, Xingfu Wang, Yiming Chen, Xiaoyong Chen, Wendong You, Jiaheng Xu, Yuanxiang Lin, Dezhi Kang, Shuai Wu, Zanyi Wu   +13 more
wiley   +1 more source

Numerical Calculation of Effect of Elastic Deformation on Aerodynamic Characteristics of a Rocket

International Journal of Aerospace Engineering, 2014
The application and workflow of Computational Fluid Dynamics (CFD)/Computational Structure Dynamics (CSD) on solving the static aeroelastic problem of a slender rocket are introduced.
Laith K. Abbas, Dongyang Chen, Xiaoting Rui   +2 more
doaj   +1 more source

Drag coefficients for partially inflated flat circular parachutes [PDF]

Free-body tests of flat circular parachutes and determination of aerodynamic drag coefficients during partial ...
Scher, S. H., Young, I. G.
core   +1 more source

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji, Jianlong Zhang, Yiming Shi, Shiyu Shan, Yang Du, Guangshuo Li, Ying Jin, Yani Zhang, Chuanying Wang, Yijun Lin, Yuhao Guo, Decai Tian, Xingquan Zhao, Tian Song   +13 more
wiley   +1 more source

Aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose

Defence Technology, 2019
Deflectable nose control is a new trajectory correction method. In this paper, the aerodynamic and trajectory characteristics of a typical mortar projectile with a deflectable nose are investigated with respect to its flight conditions.
Yu-ming Ren, Shu-shan Wang, Jing-wei Li, Xun-cheng Guo, Yue-song Mei   +4 more
doaj   +1 more source

Space shuttle plume simulation application. Results and math model [PDF]

Pressure and gauge wind tunnel data from a transonic test of a 0.02 scale model of the space shuttle launch vehicle was analyzed to define the aerodynamic influence of the main propulsion system and solid rocket booster plumes during the transonic ...
Boyle, W., Conine, B.
core   +1 more source

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler, Vivian Maas, Arian Taheri Amin, Jennifer Faber, Tamara Schaprian, Katharina Hill, Matthis Synofzik, Lisa H. Graf, Heike Jacobi, Manuela Lima, Ana F. Ferreira, Bart P. van de Warrenburg, Ilse H. J. Willemse, Dagmar Timmann, Andreas Thieme, Paola Giunti, Hector Garcia‐Moreno, Magda M. Santana, Jeannette Hübener‐Schmid, Elin H. Davies, Thomas Klockgether   +20 more
wiley   +1 more source

The Effect of Layer Thickness on Aerodynamic Characteristics of Wind Tunnel RP Models

Journal of Fluid Science and Technology, 2008
Nowadays, rapid prototyping (RP) methods are widely used to produce wind tunnel testing models. Layer thickness is an important parameter that affects aerodynamic characteristics of wind tunnel models. This paper describes the effects of Layer thickness,
S. DANESHMAND, R. ADELNIA, C. AGHANAJAFI
doaj   +1 more source

SCI model structure determination program (OSR) user's guide [PDF]

The computer program, OSR (Optimal Subset Regression) which estimates models for rotorcraft body and rotor force and moment coefficients is described. The technique used is based on the subset regression algorithm.

core   +1 more source