Results 61 to 70 of about 24,409 (308)
Advanced Science, EarlyView.The graphical abstract image of bamboo‐like whisker‐reinforced Ca‐P bioceramics accelerating large segmental bone regeneration. ABSTRACT Regenerative repair of segmental bone defect remains a major clinical challenge. The conventional mental implants suffer from mechanical strength mismatch and long‐term foreign bodies presence.
Cong Feng +10 more
wiley +1 more source
Journal of Hebei University of Science and Technology, 2019 In order to enhance the heat transfer performance of CO2 heat pump, the heat transfer performance of supercritical carbon dioxide in horizontal straight tube is conducted based on Fluent numerical simulation method. Cooling heat transfer of supercritical
Haiting CUI, Siwen LIU, Shaozheng WANG
doaj +1 more source
Prediction Models For Free and Submerged Flows Below and Downstream Silled-Gates [PDF]
The Egyptian International Journal of Engineering Sciences and Technology, 2000 The characteristics of both the discharge below silled-sluice gates and the formedhydraulic jump are discussed briefly and equations are developed for their prediction. Bothcases of free and submerged flow are considered.
a.a alhamid
doaj +1 more source
Optimizing the process of supercritical extraction of lemon balm (Melissa Officinalis L.) [PDF]
, 2010 This work investigates the process of extraction of lemon balm (Melissa officinalis L.) by treatment with carbon dioxide at supercritical conditions. The process kinetics is studied at different operational conditions, and the influence of some important
Camy, Séverine +3 more
core
Inhibitory Decay and Supercritical Brain Dynamics During Sleep Deprivation
Advanced Science, EarlyView.Sleep deprivation progressively shifts human brain dynamics from near‐critical toward supercritical states, as revealed by neuronal avalanche analysis of resting‐state fMRI. These changes track subjective sleep pressure rather than vigilance lapses and show marked network heterogeneity. A circuit model suggests that reduced inhibitory efficacy provides
Dai Zhang +6 more
wiley +1 more source
Research on dynamic erosion mechanism of submarine landslide: Review and prospects
Zhongguo dizhi zaihai yu fangzhi xuebaoThe geological hazards of submarine landslides can cause serious damage to infrastructure such as offshore wind power, submarine optical cables, and marine platforms, posing a serious challenge to the major strategic task of building a maritime power and
Yueping YIN +8 more
doaj +1 more source
ZrO2 Aerogel‐Supported Pd Nanoparticles for Photothermal CO2 Reduction
Advanced Science, EarlyView.Nanoparticle‐based aerogels are promising catalysts for photothermal reactions due to optical transparency, high surface area, and low thermal conductivity. Here, we present deposition of Pd nanoparticles on ZrO2 aerogel granules by a wet‐impregnation approach.
David Kiwic +3 more
wiley +1 more source
Hydraulic Characteristics of Free Overfall in a Steep and Rough Rectangular Channel
工程科学与技术, 2019 In the rectangular open channel, the free overfall can be used as the discharge measure device. In the channel project, the channel usually has the features as a rough and steep one.
Naiwen LI +4 more
doaj
A Fundamental Study of Supercritical Flow at Sudden Expansion Structure by Using Numerical Model
E3S Web of Conferences, 2018 In the design of hydraulic structures, it is common to deal with the supercritical flow. Abrupt expansion structure represents a type of transition often constructed in manmade hydraulic structure (e.g. chutes in dam structures, sewer or drainage system,
Lim Jia Jun +2 more
doaj +1 more source
مجله آب و خاک, 2017 Introduction: A free overfall offers a simple device for flow discharge measuring by a single measurement of depth at the end of the channel yb which is known as the end depth or brink depth.
A.R. Vatankhah, S. Kiani, S. Riahi
doaj +1 more source