Results 51 to 60 of about 1,814,413 (219)

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

American Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely, G. Olivia Plumb, Mira N. Ranganath, Emily Dolida, Ishan Ashford, Graham Luethe, Tim Thibault, Gretchen B. North   +7 more
wiley   +1 more source

On the Impact of Mechanical Constraint on Band Structure and Photo‐Elastic Effect in Photonic Resonators

Advanced Physics Research, EarlyView.
We computationally investigate the mechanical, electronic, and optical properties of strained GeSn microdisks on silicon substrates. By combining photo‐elasticity, strain‐dependent band‐structure calculations, and optical mode analysis, we study how strain distribution, structural configuration, and temperature affect the electronic band structure and ...
Jon Schlipf, Ignatii Zaitsev, Inga Anita Fischer, Davide Spirito, Bernd Witzigmann, Costanza Lucia Manganelli   +5 more
wiley   +1 more source

Physical Reservoir Computing Using Microelectromechanical Systems

Advanced Physics Research, EarlyView.
Physical reservoir computing (PRC) transforms micro‐electro‐mechanical (MEMS) sensors into intelligent computing nodes by utilizing their intrinsic nonlinear dynamics and short‐term memory effects. This review surveys recent progress in MEMS‐based reservoir computing, covering its theoretical foundations, device architectures, and applications in ...
Mariam Gada, Nizar Jaber, Nazek El‐Atab   +2 more
wiley   +1 more source

EQUIVALENT ELASTIC MODULUS OF THE HONEYCOMB CORE BASED ON FEM MODEL

Jixie qiangdu, 2015
The honeycomb core model was built by finite element method（ FEM）. And based on Hooke ’s law,the equivalent elastic modulus of honeycomb core influenced by the change of cell number was studied. The result indicates that the horizontal equivalent elastic
ZHOU JinCui, SHENG MeiPing, ZHANG AnFu
doaj  

A comparative finite element study of novel design hook plates for fixation of patella fracture

Injury
To test the mechanical properties of novel design hook plates for fixation of the patellar fracture by finite element analysis.Finite element analysis was used to construct a model of transverse patellar fracture and inferior pole fracture of the patella (IPFP) based on the CT data of the knee joint of a healthy young male volunteer. For the transverse
Cunxiang Ma, Jingyu Pan, Teng Zhang, Junqiang Wang, Wei Han, Hangyu Gu   +5 more
openaire   +2 more sources

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

An Analysis of the Kinematics and Dynamics Performance of a New Type of Three-Pronged Sliding Universal Coupling

Applied Sciences
The three-pronged sliding universal coupling is a new kind of three-pronged coupling. The purpose of this study is to demonstrate that, compared with a traditional unequal angular velocity universal coupling (such as the Hooke universal coupling), the ...
Xia Xiu, Degong Chang, Yunpeng Ju, Liang Zheng   +3 more
doaj   +1 more source

Stress Analysis on a Crane Hook Using the Finite Element Method for Various Cross-Sections

, 2020
خطاف الرافعة من الأجزاء المهمة التي تتعرض للإجهادات العالية نتيجة رفع الأوزان الكبيرة جدًا حيث تخضع دائمًا للأحمال المتكررة والمتقلبة التي ينتج عنها تركيز للاجهادات العالية الناتجة عن التحميل المفرط الذي يؤدي لفشلها في النهاية ، و لدراسة خطاف الرافعة من خلال نمط الإجهاد وشروط التحميل قام الباحث بتحليل خطاف الرفع نظريًا على أن قانون هووك ساري المفعول ...
Abukhrais, Mohamed, Juwaili, Nouri Muftah, Al-Razzaqi, Abdulhakim Al-Bukhari   +2 more
openaire   +2 more sources

Letter from John Hooke to Hagan

, 1923
Holograph letter from John Hooke, St. Mary’s, Haddington Road, Dublin, to (Hagan), introducing Mrs. Kilkelly and daughter Patricia and asking to arrange a papal audience for them.

core  

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source