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采用金属针布时若干梳理参数对毛粒形成的影响

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国外纺织技术(纺织分册) 1980年第25期 4-5页

作者： P.P.Towned A.Hewitt c.k.chu 冯月辉顾芝仙

本文列举采用金属针布时影响梳理毛网毛粒的若干因素。为了评价原料形成毛粒的潜在因素,选用了56支和70支两种极端的羔羊毛,在相同的生产率、速度和隔距的条件下梳理,从毛粒的数量上来衡量毛网的质量。指标是用一种毛粒数对另一种毛粒... 详细信息

本文列举采用金属针布时影响梳理毛网毛粒的若干因素。为了评价原料形成毛粒的潜在因素,选用了56支和70支两种极端的羔羊毛,在相同的生产率、速度和隔距的条件下梳理,从毛粒的数量上来衡量毛网的质量。指标是用一种毛粒数对另一种毛粒数的百分比,正值表示改善,负值表示恶化。举

关键词：毛粒毛网金属针布金属齿条

Treadmill exercise in combination with acousto-optic and olfactory stimulation improves cognitive function in APP/PS1 mice through the brain-derived neurotrophic factor-and cygb-associated signaling pathways

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Neural Regeneration Research 2025年第9期20卷 2706-2726页

作者： Biao Xiao chaoyang chu Zhicheng Lin Tianyuan Fang Yuyu Zhou chuxia Zhang Jianghui Shan Shiyu chen Liping Li Department of Physiology and Pharmacology Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina Ningbo key Laboratory of Behavioral Neuroscience Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina key Laboratory of Addiction Research of Zhejiang Province NingboZhejiang ProvinceChina

A reduction in adult neurogenesis is associated with behavioral abnormalities in patients with Alzheimer's ***,enhancing adult neurogenesis represents a promising therapeutic approach for mitigating disease symptoms and ***,nonpharmacological interventions aimed at inducing adult neurogenesis are currently *** individual non-pharmacological interventions,such as aerobic exercise,acousto-optic stimulation,and olfactory stimulation,have shown limited capacity to improve neurogenesis and cognitive function in patients with Alzheimer's disease,the therapeutic effect of a strategy that combines these interventions has not been fully *** this study,we observed an age-dependent decrease in adult neurogenesis and a concurrent increase in amyloid-beta accumulation in the hippocampus of amyloid precursor protein/presenilin 1 mice aged 2-8 *** deposition became evident at 4 months,while neurogenesis declined by 6 months,further deteriorating as the disease ***,following a 4-week multifactor stimulation protocol,which encompassed treadmill running(46 min/d,10 m/min,6 days per week),40 Hz acousto-optic stimulation(1 hour/day,6 days/week),and olfactory stimulation(1 hour/day,6 days/week),we found a significant increase in the number of newborn cells(5'-bromo-2'-deoxyuridine-positive cells),immature neurons(doublecortin-positive cells),newborn immature neurons(5'-bromo-2'-deoxyuridine-positive/doublecortin-positive cells),and newborn astrocytes(5'-bromo-2'-deoxyuridine-positive/glial fibrillary acidic protein-positive cells).Additionally,the amyloid-beta load in the hippocampus *** findings suggest that multifactor stimulation can enhance adult hippocampal neurogenesis and mitigate amyloid-beta neuropathology in amyloid precursor protein/presenilin 1 ***,cognitive abilities were improved,and depressive symptoms were alleviated in amyloid precursor protein/presenilin 1 mice

关键词： acousto-optic stimulation adult neurogenesis Alzheimer's disease amyloid precursor protein/presenilin 1 mice amyloid-beta deposition brain cell apoptosis cognitive impairment depression-like behavior involuntary treadmill exercise olfactory stimulation serum metabolites

carbon-supported ceNcl as an efficient catalyst for cO_(2)cycloaddition

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Nano Research 2025年第1期18卷 157-163页

作者： Li Liu Lingling Zhang Xiang chu Baokang Geng Huilin Wang Zongxiang Li Xiao Wang Shuyan Song Hongjie Zhang School of Applied chemistry and Engineering University of Science and Technology of ChinaHefei 230026China State key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Sinocare Incorporation Changsha 410221China Department of chemistry Tsinghua UniversityBeijing 100084China

The cycloaddition reaction of cO_(2)with epoxide not only effectively reduces the concentration of cO_(2)in the atmosphere,but also has excellent industrial application value and up to 100%atom utilization,but there are difficulties in separation and recovery of traditional homogeneous catalysts,harsh reaction conditions of traditional heterogeneous catalysts,and activation of cO_(2)*** this paper,an easily synthesized heterogeneous catalyst ceNcl/c was used to catalyze the cycloaddition reaction of cO_(2)with styrene oxide,with a high yield of 92.7%,a high selectivity of 96.7%,a turnover numbers(TON)value of 349,and a good stability demonstrated in six cycle tests(equivalent to 216 h of testing).Through comprehensive studies,it was shown that ceNcl/c contains Lewis acid-base centers as active centers,which can effectively reduce the energy barrier required for ring opening of the reaction substrate,enhance the adsorption and activation of cO_(2),and promote the formation of intermediates,which led to the acquisition of excellent catalytic activity.

关键词： cO_(2)cycloaddition heterogeneous catalysis ceNcl Lewis acid/base

Evolution of Nanocrystalline TiBcN Structure with Temperature and Mechanism

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稀有金属材料与工程 2012年第S1期41卷 341-343页

作者： Paul k chu Department of Physics and Materials Science City University of HongkongKowloon HongkongChina

Evolution of the TiB0.71c3.32N0.79 quaternary nanocomposite structure at 600,700,800,900,and 1000℃ is investigated by high-resolution transmission electron microscopy,X-ray diffraction,X-ray photoelectron spectrometry,and micro-hardness *** nc-Ti(c,N)nanocrystallites exhibit the(200)preferential orientation and the amorphous carbon(a-c)phase gradually transforms into the crystallite graphite phase as the temperature is *** 1000℃,the nc-Ti(c,N)nanocrystallites increase to a size of 13 nm but the microhardness diminishes to 18-19 *** corresponding mechanism is discussed.

关键词： nanocomposites structure TiBcN

OPTIMAL VELOcITY FUNcTIONS UNDER ENERGY REGENERATION

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Acta Mathematicae Applicatae Sinica 1984年第2期1卷 127-137页

作者： S.c.k.chu University of Hong kong

Energy conservation for a subway system can be achieved through implementation of *** the context of natural receptivity,the regenerated energy may be used to supply thepower need of nearby trains,Minimization of effective energy usage is examined and such optimalmodes of operation of an individual train between a pair of stations are derived for various degreesof regeneration.

关键词： OPTIMAL VELOcITY FUNcTIONS UNDER ENERGY REGENERATION 刁云 mode

A 2-D FINITE ELEMENT MODEL SIMULATION OF THE MELTING PROcESS OF Al-Ti ALLOY IN VAcUUM INDUcTION FURNAcE WITH cOLD cRUcIBLE(VIFcc)

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Acta Metallurgica Sinica(English Letters) 2004年第3期17卷 229-237页

作者： S.c.chu S.S.Lian F.k.chen Institute of Materials Science and Engineering National Taiwan UniversityTaibei(Taipei)Institute of Materials Science and EngineeringNational Taiwan UniversityTaibei(Taipei)Institute of Mechanical EngineeringNational Taiwan UniversityTaibei(Taipei)

The development of a numerical model for the melting process of Al--Ti alloy targetmaterial in vacuum induction furnace with cold crucible (VIFcc)was described. It isa two--dimensional computational methodology to calculate electromagnetic field, heattransfer field and fluid flow field. Based on the aid of the finite element method withthe commercial software--ANSYS, a superimposition method of a layer of copper anda slit to simulate the VIFcc melting process was used. The method was effectiveto save large quantity of memory and computing time. Meanwhile, a temperaturedistribution profile during the melting process was obtained. Validity of the model wasconfirmed by comparison between the result from calculation and those from directmeasurement by optical pyrometer and indirect investigation by ingot macrostructure.A relatively good agreement was found. Further, a nearly directional solidificationstrvcture was obtained under properly controlling the cooling rate and heating power.Therefore, such model developed in this article is feasible.

关键词： VIFcc ANSYS superimposition ingot macrostructure

Effect of three cooking methods on nutrient components and antioxidant capacities of bamboo shoot(Phyllostachys praecox c.D. chu et c.S. chao)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第9期12卷 752-759页

作者： Jin-jie ZHANG Rong JI Ya-qin HU Jian-chu cHEN Xing-qian YE Department of Food Science and Nutrition College of Biosystem Engineering and Food ScienceZhejiang UniversityHangzhou 310029China

Three cooking methods,namely boiling,steaming,and stir-frying for 5 to 10 min,were used to evaluate the effect on nutrient components,free amino acids,L-ascorbic acid,total phenolic contents,and antioxidant capacities of bamboo shoots(Phyllostachys praecox).Results showed that boiling and stir-frying had a great effect on the nutrient components and they decreased the contents of protein,soluble sugar,and ash,and caused a great loss in the total free amino acids(decreased by 38.35% and 34.86%,respectively).Significant differences(Pcids were observed in the samples cooked by different ***-fried bamboo shoots had a high fat content which increased by 528.57% because of the addition of edible *** boiling,the L-ascorbic acid and total phenolic contents were significantly reduced,while steaming increased total phenolic content by 3.98% and stir-frying well-preserved L-ascorbic acid(78.87% of its previous content).Results of the antioxidative property study showed that stir-frying could increase antioxidant capacities of bamboo *** is concluded that stir-frying is more suitable for bamboo shoots because it could obtain the maximum retention of antioxidant capacities.

关键词： cooking methods Bamboo shoot Nutrition Antioxidant capacities

Thermal fronts and cross-frontal heat flux in the southern Huanghai Sea and the East china Sea

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Acta Oceanologica Sinica 2008年第5期27卷 1-20页

作者： PARk Sunghyea chu Peter c Department of Oceanography Naval Postgraduate School

Synoptic features in/around thermal fronts and cross-frontal heat fluxes in the southern Huanghai./Yellow Sea and East china Sea （HES） were examined using the data collected from four airborne expendable bathythermograph surveys with horizontal approxmately 35 km and vertical 1 m（from the surface to 400 m deep） spacings. Since the fronts are strongly affected by HES current system, the synoptic thermal features in/around them represent the interaction of currents with surrounding water masses. These features can not be obtained from climatological data. The identified thermal features are listed as follows ：（ 1 ） multiple boundaries of cold water, asymmetric thermocline intrusion, locally-split front by homogeneous water of approxmately 18 ℃, and mergence of the front by the Taiwan Warm current in/around summertime southern cheju - changjiang/Yangtze front and Tsushima front; （2） springtime frontal eddy-like feature around Tsushima front; （3） year-round cyclonic meandering and summertime temperature-inversion at the bottom of the surface mixed layer in cheju - Tsushima front; and （4） multistructure of kuroshio front. In the kuroshio front the mean variance of vertical temperature gradient is an order of degree smaller than that in other HES fronts. The southern cheju- changjiang front and cheju -Tsushima front are connected with each other in the summer with comparable cross-frontal temperature gradient. However, cross-frontal heat flux and lateral eddy diffusivity are stronger in the southern cheju - changjiang front. The cross-frontal heat exchange is the largest in the mixing zone between the modified Huanghai Sea bottom cold water and the Tsushima Warm current, which is attributable to enhanced thermocline intrusions.

关键词： southern Huanghai Sea and East china Sea AXBT synoptic thermal front cross-frontal heat flux lateral eddy diffusivity

Oxygen-vacancy induced magnetic phase transitions in multiferroic thin films

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npj computational Materials 2020年第1期6卷 1047-1055页

作者： césar Menéndez Dewei chu claudio cazorla School of Materials Science and Engineering UNSW SydneySydneyNSW 2052Australia

Multiferroics in which giant ferroelectric polarization and magnetism coexist are of tremendous potential for engineering disruptive applications in information storage and energy *** the functional properties of multiferroics are thought to be affected detrimentally by the presence of point defects,which may be abundant due to the volatile nature of some constituent atoms and the high temperatures involved in the synthesis of ***,we demonstrate with theoretical methods that oxygen vacancies may enhance the functionality of multiferroics by radically changing their magnetic interactions in thin ***,oxygen vacancies may restore missing magnetic super-exchange interactions in large axial ratio phases,leading to full antiferromagnetic spin ordering,and induce the stabilization of ferrimagnetic states with considerable net *** theoretical study should help to clarify the origins of long-standing controversies in bismuth ferrite and improve the design of technological applications based on multiferroics.

关键词： magnetic Oxygen transitions