نتایج جستجو برای: first swing stability

تعداد نتایج: 1711566  

Ankit A Singhania Chetan Bansal Nirali Chauhan Saurav Soni

Introduction: The aim of this study was to determine which technique of uncinectomy, classical or swing door technique.  Materials and Methods: Four hundred eighty Cases of sinusitis were selected and operated for Functional Endoscopic Sinus Surgery (FESS). Out of these, in 240 uncinectomies classical uncinectomy was done whereas in another 240 uncinectomies swing door technique was used. In...

2017
Ahmed Sabah Al-Araji

A new development of a swing-tracking control algorithm for nonlinear inverted pendulum system presents in this paper. Sliding mode control technique is used and guided by Lyapunov stability criterion and tuned by Bees-slice genetic algorithm (BSGA). The main purposes of the proposed nonlinear swing-tracking controller is to find the best force control action for the real inverted pendulum mode...

Journal: :Journal of theoretical biology 2011
Yvonne Blum Aleksandra Birn-Jeffery Monica A Daley Andre Seyfarth

Humans and birds both walk and run bipedally on compliant legs. However, differences in leg architecture may result in species-specific leg control strategies as indicated by the observed gait patterns. In this work, control strategies for stable running are derived based on a conceptual model and compared with experimental data on running humans and pheasants (Phasianus colchicus). From a mode...

Journal: :Sid's Digest Of Technical Papers 2023

We demonstrated self‐aligned top‐gate (SATG) amorphous indium‐gallium‐zinc oxide (a‐IGZO) thin‐film transistor (TFT) where the source/drain (S/D) regions were induced into a low resistance state by first coating thin hafnium (Hf) film and then performing thermal annealing in oxygen. The experimental results show that sheet of Hf‐treated a‐IGZO layer can be as 408 Ω/□. TFT fabricated proposed pr...

2011
Prechanon Kumkratug

Problem statement: Modern power system consists of the complicated network of transmission lines and carries heavy demand. Thus they cause in the stability problem. Approach: Static Synchronous Series Compensator (SSSC) is a power electronic based device that has the capability of controlling the power flow through a line. The series voltage injection model of SSSC is modeled into power flow eq...

Journal: :Medical engineering & physics 2008
Shier-Chieg Huang Tung-Wu Lu Hao-Ling Chen Ting-Ming Wang Li-Shan Chou

Tripping over obstacles has been reported as one of the most frequent causes of falls in the elderly. Maintenance of the body's balance and precise swing foot control is essential for successful obstacle-crossing. The aim of this study was thus to investigate the height and age effects on the center of mass (COM) and center of pressure (COP) inclination angles and angular velocities during obst...

Journal: :Journal of the Royal Society, Interface 2009
J C Dean A D Kuo

The passive dynamics of bipedal limbs alone are sufficient to produce a walking motion, without need for control. Humans augment these dynamics with muscles, actively coordinated to produce stable and economical walking. Present robots using passive dynamics walk much slower, perhaps because they lack elastic muscles that couple the joints. Elastic properties are well known to enhance running g...

2016
Dong-Jae Seong Seoung-Jin Hong Seung-Ryong Ha Young-Gi Hong Hyo-Won Kim

Patients who underwent resection of maxilla due to benign or malignant tumor, or accident will have defect in palatal area. They get retention, support and stability from remaining tissues which are hardly optimal. The advantage of swing-lock attachment design is having multiple contacts on labial and lingual side of the abutment teeth by retentive strut and palatal bracing component. Because t...

Journal: :IEICE Transactions 2009
Doo-Hee Cho Sang-Hee Ko Park Shinhyuk Yang Chunwon Byun Min Ki Ryu Jeong-Ik Lee Chi-Sun Hwang Sung Min Yoon Hye Yong Chu Kyoung-Ik Cho

We have fabricated the transparent bottom gate and top gate TFTs using new oxide material of Al-Zn-Sn-O (AZTO) as an active layer. The AZTO active layer was deposited by RF magnetron sputtering at room temperature. Our novel TFT showed good TFT performance without post-annealing. The field effect mobility and the sub-threshold swing were improved by the post-annealing, and the mobility increase...

Journal: :Journal of rehabilitation research and development 2007
Angelika Zissimopoulos Stefania Fatone Steven A Gard

Users of traditional knee-ankle-foot orthoses (KAFOs) walk with either locked or unlocked knee joints depending on the level of stability required. Some users may benefit from new stance-control KAFOs that prevent stance-phase knee flexion but allow swing-phase flexion. We collected data from nine nondisabled adults who walked with KAFOs that incorporated the Horton Stance-Control Orthotic Knee...

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