Results 81 to 90 of about 38,512 (263)

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

)On the Meridian Essence from the Evolution Standpoint: the Channel Transmission Might Be an Atavism

针刺研究, 1999
The most ideas about the meridian essence and phenomena might be partially right and the key to deep out study should have helped to bring about a complete understanding about the meridian system that could comprehend the classical and modern knowledge.
Liu Yanming
doaj  

Ultrasound-based visualization measurement of hyoid-mandibular motion for assessing the efficacy of acupuncture in treating post-stroke dysphagia: A clinical study

Journal of Radiation Research and Applied Sciences
Objective: The objective of this study was to utilize ultrasonography to measure the movement-related characteristics of the hyoid bone-mandible in patients with dysphagia in order to quantitatively evaluate the clinical efficacy of acupuncture as a ...
Lu Zhang, Xiaoyang Lian, Jie Chen, Chuchu Zhang, Gang Ouyang   +4 more
doaj   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Differentially Expressed Genes Involving the Correlativity Between Heart Meridian and Hypothalamus

针刺研究, 2008
Objective To study the bio-molecule basis of correlativity between Heart Meridian and hypothalamus from gene differential expression. Methods Twenty-eight healthy Sprague-Dawley male rats were divided into 4 groups randomly: normal control, model, Heart ...
LI Meng, LONG Di-he, HE Lu, HU Ling, WANG Ke-ming, WU Zi-jian, CAI Rong-lin, ZHOU Yi-ping   +7 more
doaj  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Gene expression profiles in COVID-19-associated tracheal stenosis indicate persistent anti-viral response and dysregulated retinol metabolism

BMC Research Notes
Introduction Coronavirus disease 2019 (COVID-19)-associated tracheal stenosis (COATS) may occur as a result of prolonged intubation during COVID-19 infection.
Russell Seth Martins, Joanna Weber, Kostantinos Poulikidis, Al Haitham Al Shetawi, M. Jawad Latif, Syed Shahzad Razi, Robert S. Lebovics, Faiz Y. Bhora   +7 more
doaj   +1 more source