Results 111 to 120 of about 4,307,039 (298)

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

Advanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt, Stephan Müssig, Robert Luxenhofer, Karl Mandel   +3 more
wiley   +1 more source

Hierarchical Multi‐Material Architectures With Gradient Design for Dynamic‐Range Flexible Tactile Sensing

Advanced Materials Technologies, EarlyView.
Hierarchical multi‐material TPMS lattices are engineered as flexible tactile sensors by combining soft and stiff elastomeric layers with a conformal conductive coating. The bilayer architecture delivers sensitivity at low pressures while maintaining a broad detectable range under large loads, enabling reliable pressure and vibration monitoring for ...
Reza Noroozi, Domenic Quiquero, Yan Yan Shery Huang, HaoTian Harvey Shi   +3 more
wiley   +1 more source

Correlation between the Charlson comorbidity index and skeletal muscle mass/physical performance in hospitalized older people potentially suffering from sarcopenia

BMC Geriatrics, 2019
Background Sarcopenia is a decrease in skeletal muscle mass, physical performance, and muscle strength in older people. In this study, we aimed to explore the correlation between comorbidity and skeletal muscle mass and physical performance in older ...
Ge Gong, Wenhui Wan, Xinghu Zhang, Yu Liu, Xinhui Liu, Jian Yin   +5 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Skeletal muscle fiber-type switching, exercise intolerance, and myopathy in PGC-1alpha muscle-specific knock-out animals. [PDF]

, 2007
The transcriptional coactivator peroxisome proliferator-activated receptor gamma coactivator 1alpha (PGC-1alpha) is a key integrator of neuromuscular activity in skeletal muscle.
Handschin, Christoph, Li, P., Handschin, C., Lebrasseur, N. K., Li, Ping, Spiegelman, Bruce M, Maratos-Flier, E., Lebrasseur, Nathan K, Liu, Fenfen, Chin, Sherry, Maratos-Flier, Eleftheria, Spiegelman, B. M., Yan, Zhen, Yan, Z., Chin, S., Liu, F.   +15 more
core   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

Advanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Prevalence of sarcopenia and sarcopenic obesity in Korean adults: The Korean Sarcopenic Obesity Study (KSOS) [PDF]

, 2009
*Context:* Sarcopenic obesity (SO), a combination of excess weight and reduced muscle mass and/or strength, is suggested to be associated with an increased risk of adverse health outcomes.
Tae Nyun Kim, Sei Hyun Baik, Hyun Joo Kang, Sae Jeong Yang, Wook Song, Ji A Seo, Sin Gon Kim, Hye Jin Yoo, Nan Hee Kim, Kang Il Lim, Kyung Mook Choi, Dong Seop Choi   +11 more
core  

Advances in research on the prenatal development of skeletal muscle in animals in relation to the quality of muscle-based food. II -Genetic factors related to animal performance and advances in methodology [PDF]

, 2011
Selective breeding is an effective tool to improve livestock. Several selection experiments have been conducted to study direct selection responses as well as correlated responses in traits of skeletal muscle growth and function. Moreover, comparisons of
Wimmers, K, Nottingham, Te Pas, M. F. W., N. Oksbjerg, Te Pas, M. F.W., Stickland, N C, Algarve, Oksbjerg, Neils, Rehfeldt, C., Stickland, Neil, Rehfeldt, Charlotte, Brameld, J M, Picard, Brigitte, B., Te Pas, Marinus, Pas, M, Leibniz Inst Anim FBN, Nissen, P M, Power, D M, Valente, L M P, K. Wimmers, Oksbjerg, N, Nissen, Pia, Wimmers, Klaus, Valente, L.M.P., Brameld, J. M., M.F.W. Te Pas, Picard, B., Stickland, N.C., Pas, M.F.W., te, Berri, C., Picard, B, Nissen, P. M., B. Picard, Stickland, N. C., Berri, C, Rehfeldt, C, P.M. Nissen, Valente, L. M.P., Valente, Luísa, Power, Deborah, Wageningen UR, The Netherlands, Brameld, John, INRA, France, Nissen, P.M., te Pas, M.F.W., Brameld, J.M., Aarhus, C. Rehfeldt, Wimmers, K., N.C. Stickland, Power, D. M., C. Berri, D.M. Power, Valente, L. M. P., J.M. Brameld, Power, D.M., L.M.P. Valente, Berri, Cécile, Porto, Oksbjerg, N.   +59 more
core   +1 more source