Results 81 to 90 of about 56,150 (292)

Incorporation of 3 μm SiCp into Titanium surfaces using a 2.8 kW laser beam of 186 and 373 MJ m-2 energy densities in a nitrogen environment

, 2007
The formation of composite layers using a 2.8 kW laser beam of 186 and 373 MJ m−2 energy densities, on commercial purity titanium surfaces preplaced with 3 μm size, 1-4 vol.% SiCp powder in a 100% nitrogen environment, produced gold colour tracks.
Mridha, S., Baker, T.N.
core   +1 more source

An optimal loss-reduction control strategy for MMC considering capacitor voltage ripple suppression

Zhejiang dianli
Existing capacitor voltage ripple suppression methods primarily rely on second-harmonic circulating current injection （SHCCI）. However， these methods often increase valve losses in modular multilevel converters （MMCs） ， degrading operational efficiency ...
FANG Dongping, QIU Yang, CUI Jindong, FEI Lisong, TANG Fangjie, ZHAO Jiancheng   +5 more
doaj   +1 more source

Influencia del tratamiento isotérmico en la intercara de los intermetálicos Ni3Al como refuerzo de un compuesto de matriz de aluminio obtenido por pulvimetalurgia

Revista de Metalurgia, 1998
La mejora de las propiedades mecánicas de los composites de aluminio reforzados con partículas de Ni3Al se debe a la continuidad de la unión entre las partículas de refuerzo y la matriz, así como a la resistencia de las primeras.
C. Ferrer, V. Amigó, M. D. Salvador, D. Busquets, J. M. Torralba   +4 more
doaj   +1 more source

Hydrogel Stack‐Tailored Logics and High‐Fidelity Multimodal Sensors Promoted by Precisely Evaluated Ionic Migration

Advanced Science, EarlyView.
Inspired by biological ion transport, this work introduces self‐powered multifunctional sensors utilizing tailored hydrogel stacks. Optimizing ionic migration with MXenes and carbon nanotubes achieves high‐performance energy harvesting and unique logic circuit functionality.
Haoran Chen, Hongjian Zhang, Zhonghui Shen, Taeuk Eom, Hyunseung Kim, Delong He, Jinbo Bai, Geon‐Tae Hwang, Yong Zhang, Chang Kyu Jeong   +9 more
wiley   +1 more source

Unconventional Room‐Temperature Antisymmetric Magnetoresistance in van der Waals Fe3GaTe2/Pt Heterostructures

Advanced Science, EarlyView.
We investigated a special electrical phenomenon, known as antisymmetric magnetoresistance with four distinct resistance states, in 2D Fe3GaTe2/Pt devices at room temperature. By designing devices with two separated magnetic nanoflakes, we confirmed that the effect originates from spin–momentum locking rather than magnetic domain walls or interface ...
Yunwen Zhu, Xiaolin Luo, Fan Gong, Jinnan Liu, Zhuang Liu, Jianlei Shen, Jinjian Guo, Baijie Zhu, Wei Zhang, Zhiyong Quan, Xiaohong Xu   +10 more
wiley   +1 more source

2D Inorganic Electrides: Interstitial Electrons as Key Drivers of Multifunctional Properties and Applications

Advanced Science, EarlyView.
Eight AB‐type 2D inorganic electrides with negatively charged transition metals are theoretically designed. Their monolayers exhibit intrinsic magnetic ordering, rich topological phases, and ultralow work functions. Supported metal Ru on these 2D inorganic electrides effectively alleviates hydrogen poisoning and enables efficient ammonia synthesis ...
Qianwen Zhang, Xia Cheng, Zhenzhou Guo, Weiyao Jia, Ying Yang, Zhenxiang Cheng, Weizhen Meng   +6 more
wiley   +1 more source

Research and Development Activities of Micro- Elctromechanical System (MEMS) in Taiwan

, 2012
[[fileno]]2030168030024[[department ...
M.S. Lin;C.Y. Wu;R.S. Huang
core  

Startup Control for MMC-HVDC System

, 2013
In order to restrain overvoltage and over current which are produced during the startup process of MMC-HVDC, it is necessary to design startup control for MMC-HVDC system.
GUI Weihua, XU Zheng, WANG Weian, TU Qingrui   +3 more
core   +1 more source

Community Conversation: Male Perspective on Birth and Breastfeeding [PDF]

, 2022
Mi Milk Collective (MMC) centers Black birth and Black breastfeeding to combat infant and maternal mortality and addresses a slate of structural inequities and indicators that lead to breastfeeding disparities.

core  

ASSOCIATION OF VERTEBRAL FRACTURES AND HIP FRACTURES IN PATIENTS WITH OSTEOPOROSIS

National Journal of Medical Research, 2014
Background: Osteoporosis is quite common disease among aged in India. Studies indicate that vertebral fractures are probably the most common fragility fractures and that they are often followed by a second fracture.
Deepak D Chitragar, Sadik I Shaikh
doaj