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Prevention of Warp Breaks in Jacquard Weaving
Seyam Abdelfattah M.,Lee, Jin-Ho,Hodge George,Oxenham William,Grant Edward The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.1
We developed a system to monitor and locate warp breaks in Jacquard weaving using MEMS accelerometers that are mounted on harness cords. Brief description of the system is provided and system use to prevent warp breaks through the analyses of MEMS signals is demonstrated.
김정수,박영민,이상록,Ihssan S. Masad,Andy V. Khamoui,Edward Jo,박봉섭,Bahram H. Arjmandi,Lynn B. Panton,이원준,Samuel C. Grant 한국분자세포생물학회 2012 Molecules and cells Vol.34 No.5
Older women exhibit blunted skeletal muscle hypertro-phy following resistance training (RT) compared to other age and gender cohorts that is partially due to an impaired regenerative capacity. In the present study, we examined whether -hydroxy--methylbutyrate (HMB) provision to aged female rodents would enhance regenerative mechanisms and facilitate RT-induced myofiber growth. Nineteen-month old female Sprague-Dawley rats were randomly divided into three groups: HMB (0.48 g/kg/d; n = 6), non-HMB (n = 6), and control (n = 4). HMB and non-HMB groups underwent RT every third day for 10 weeks using a ladder climbing apparatus. Whole body strength, grip strength, and body composition was evaluated before and after RT. The gastrocnemius and soleus muscles were analyzed using magnetic resonance diffusion tensor imaging, RT-PCR, and immunohistochemistry to determine myofiber dimensions, transcript expression, and satellite cells/myonuclei, respectively. ANOVAs were used with sig-nificance set at p < 0.05. There were significant time effects (pre vs. post) for whole body strength (+262%), grip strength (+17%), lean mass (+20%), and fat mass (-19%). Both RT groups exhibited significant increases in the mean myofiber cross-sectional area (CSA) in the gas-trocnemius and soleus (+8-22%) compared to control. Moreover, both groups demonstrated significant increases in the numbers of satellite cells (+100-108%) and myonuclei (+32%) in the soleus but not the gastrocnemius. A significant IGF-I mRNA elevation was only observed in soleus of the HMB group (+33%) whereas MGF and myogenin increased significantly in both groups (+32-40%). Our findings suggest that HMB did not further enhance intense RT-mediated myogenic mechanisms and myofiber CSA in aged female rats.