Results 21 to 30 of about 644,622 (267)

Acoustic boundary layers as boundary conditions [PDF]

Journal of Computational Physics, 2018
The linearized, compressible Navier-Stokes equations can be used to model acoustic wave propagation in the presence of viscous and thermal boundary layers. However, acoustic boundary layers are notorious for invoking prohibitively high resolution requirements on numerical solutions of the equations.
Martin Berggren, Anders Bernland, Daniel Noreland   +2 more
openaire   +2 more sources

Study of Zn6Al6Ag Alloy Application in Ultrasonic Soldering of Al₂O₃–(Al/Al₂O₃) Joints

Metals, 2020
The aim of this research is to characterize the soldering alloy Zn6Al6Ag, and to study the ultrasonic soldering of an Al2O3/metal−ceramic composite (Al/Al2O3).
Roman Kolenak, Igor Kostolny, Jaromir Drapala, Paulina Babincova, Matej Pasak   +4 more
doaj   +1 more source

Effect of step-flow modulation on the large-size single crystal diamond through mosaic growth

Functional Diamond, 2023
In this paper, large-size single crystal diamond is grown by microwave plasma chemical vapor deposition using mosaic technique. The effects of the step-flow modulation on the surface morphology and crystal quality of epitaxial single crystal diamond ...
Genzhuang Li, Dongshuai Li, Caoyuan Mu, Qiliang Wang, Xianyi Lv, Liuan Li, Guangtian Zou   +6 more
doaj   +1 more source

Interface character distributions in WC/Co cemented carbide

Cailiao gongcheng
Electron backscatter diffraction， five parameter analysis， overlap-pole-figure analysis and near coincident site analysis were used to investigate the interface character distributions of WC/WC grain boundaries and WC/Co phase boundaries in WC/Co ...
YU Shunshi, CHEN Song, LI Guanghui, LI Hui, LIN Yan, LI Hongfeng, DAI Siyuan, WU Tizhen, WANG Weiguo   +8 more
doaj   +1 more source

Redefinisi “Perbatasan dan Keamanan” di Asia Tenggara (Sebuah Paradigma untuk Ketahanan Nasional)

JSP: Jurnal Ilmu Sosial dan Ilmu Politik, 2011
This article intends to examine the dynamics of "border and security" in Southeast Asia through the social history approach. ASEAN members have used the concept of ASEAN Community by 2015 as a new way of building community identity of Southeast Asia ...
Kamaruzzaman Bustamam-Ahmad
doaj   +1 more source

Spatial updating in virtual reality for reproducing object locations in vista space—Boundaries, landmarks, and idiothetic cues

Frontiers in Psychology, 2023
Keeping track of locations across self-motion is possible by continuously updating spatial representations or by encoding and later instantaneously retrieving spatial representations.
Zhanna Borodaeva, Sven Winkler, Jennifer Brade, Philipp Klimant, Georg Jahn   +4 more
doaj   +1 more source

S-band and X-band Radar Observation Characteristics of EF2 Tornado at Qingyuan of Baoding in 2021

应用气象学报
Using multiple observations such as S-band radar (SPOL) in Shijiazhuang, X-band phased array radar (XPAR) in Xiong'an, and ground-based encrypted automatic stations, detection features and evolutions of EF2 tornado at Donglü Village, Qingyuan District of
Chen Xuejiao, Hua Jiajia, Pei Yujie, Wang Zhenchao, Liu Shu, Liu Shujun, Wang Fuxia   +6 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Diagnosis of a Regional Thundersnow in Beijing, Tianjin and Hebei in February 2024

应用气象学报
The generation mechanism of extreme snowfall and convective snowfall in Beijing-Tianjin-Hebei region of China from 20 February to 21 February in 2024 are analyzed with high-resolution observations and the fifth-generation European Centre for Medium-Range
Suo Chunnan, Yan Chunwang, Chen Junming, Hua Jiajia, Ma Fenglian, Ji Ce, Sun Mengmeng   +6 more
doaj   +1 more source