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44篇 您的检索式:作者名="Xiufang Yang"
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1Differences in thermal effects of moxibustion at Zusanli(ST 36) and Hegu(LI 4) on various facial areas in healthy people显示文摘OBJECTIVE:To study the effects of temperature on different facial areas by suspended moxibustion at two points,Zusanli(ST 36) and Hegu(LI 4),and probe the phenomena underlying self-regulation in the human body after thermal stimulation.METHODS:Thirty healthy volunteers accepted moxibustion over Zusanli(ST 36) and Hegu(LI 4),and the order of moxibustion points was randomly determined.Moxibustion method:suspension of moxibustion over Zusanli(ST 36) and Hegu(LI 4) on both sides was performed using an ignited moxa stick stuck in a support for 20 min.Observation method:An infrared thermal image of the face was taken before and after suspended moxibustion using a CK350 medical infrared thermal imaging instrument.Data analysis:A thermal microscopic section view system(TMTSys) was used to analyze the change in temperature in special facial areas.Statistical analysis was carried out using SPSS 14.0 software.RESULTS:Before moxibustion was suspended,the facial thermal image showed a T-shaped thermal area related to the vascular distribution with even temperature and good symmetry on both sides.Suspended moxibustion over Zusanli(ST 36) have a very significant increase in temperature at the forehead,around the nose,at the corners of the mouth,and at the cheeks and lips(P<0.01).Suspended moxibustion over Hegu(LI 4) also have a significant(P<0.05) increase in temperature around the nose,the corners of the mouth,the cheeks,and lips,where has a new high temperature area was formed(P<0.01).Suspended moxibustion over Hegu(LI 4) raised the temperature at the middle point of the lips more obviously than did Zusanli(ST 36) in the same person,(P<0.05).After 10 min of moxibustion over Zusanli(ST 36) and Hegu(LI 4),the change in temperature in the facial area reached its peak value.CONCLUSIONS:Facial infrared thermography of healthy people revealed a T-shaped thermal area reflecting a physiological thermal area.Moxibustion over Zusanli(ST 36) or Hegu(LI 4) raised the temperature in this facial T-shaped thermal area.Hegu(LI 4) led to the formation of a new thermal area in the lips.The time required for moxibustion to regulate human body temperature was 10 min.Yiling Yang Laixi Ji Gaobo Li Xiufang Deng Peisi Cai Ling Guan 2012Journal of Traditional Chinese Medicine2012,32,3:13
2Milling surface roughness for 7050 aluminum alloy cavity influenced by nozzle position of nanofluid minimum quantity lubrication显示文摘In nanofluid minimum quantity lubrication(NMQL)milling of aviation aluminum alloy,it is the bottleneck problem to adjust the position parameters(target distance,incidence angle,and elevation angle)of the nozzle to improve the surface roughness of milling,which has large and uncontrollable errors.In this paper,the influence law of milling cutter speed,helical angle,and cavity shape on the flow field around the milling cutter was studied,and the optimal nozzle profile parameters were obtained.Using 7050 aluminum alloy as the workpiece material,the milling experiment of the NMQL cavity was conducted by utilizing cottonseed oil-based Al2 O3 nanofluid.Results show that the high velocity of the surrounding air flow field and the strong gas barrier could be attributed to high rotating velocities of the milling cutter.The incidence angle of the nozzle was consistent with the helical angle of the milling cutter,the target distance was appropriate at 25–30 mm,and the elevation angle was suitable at 60°–65°.The range and variance analyses of the signal-to-noise ratio of milling force and roughness were performed,and the chip morphology was observed and analyzed.The results show that the optimal combination of nozzle position parameters was the target distance of 30 mm,the incidence angle of 35°,and the elevation angle of 60°.Among these parameters,target distance had the largest impact on cutting performance with a contribution rate of more than 55%,followed by incidence angle and elevation contribution rate.Analysis by orthogonal experiment revealed that the nozzle position parameters were appropriate,and Ra(0.087 lm)was reduced by 30.4%from the maximum value(0.125 lm).Moreover,Rsm(0.05 mm)was minimum,which was 36%lower than that of the seventh group(Rsm=0.078 mm).Zhenjing DUAN Changhe LI Yanbin ZHANG Lan DONG Xiufang BAI Min YANG Dongzhou JIA Runze LI Huajun CAO Xuefeng XU 2021Chinese Journal of Aeronautics2021,34,6:10
3Infrared thermography and meridian-effect evidence and explanation in Bell's palsy patients treated by moxibustion at the Hegu (LI4) acupoint Overall regulation or a specific target?显示文摘Subjects with Bell's palsy and healthy individuals were treated with moxibustion thermal stimulation on the Hegu (LI4) acupoint; an infrared thermal imaging system was used to observe facial-temperature changes. Bell's palsy patients developed low or high temperatures at the affected side, with poor symmetry. Healthy people showed high temperatures on the forehead, medial angle of the eye, nasal ala and around the lips, but low temperatures on bilateral cheeks, thus forming a 'T-type hot area' in the face, with good temperature symmetry. Moxibustion treatment for 11 minutes significantly improved high asymmetry in temperature in the faces of Bell's palsy patients. This evidence indicates that moxibustion treatment on Hegu enables increases in facial temperatures in healthy people and Bell's palsy patients, especially around the lips. Moxibustion stimulation at the Hegu not only improves the global circulation but also has specific effects on the lips in Bell's palsy patients, but the underlying mechanism needs further investigation.Ling Guan Gaobo Li Yiling Yang Xiufang Deng Peisi Cai 2012Neural Regeneration Research2012,7,9:10
4Influence of surface modification of SrFe12O19 particles with oleic acid on magnetic microsphere preparation显示文摘Oleic acid was used as surface modification agent to improve the hydrophobicity of magnetic strontium hexaferrite particles.The structure and properties of treated magnetic particles were characterized by scanning electronic microscopy(SEM),Fourier transform infrared spectra(FTIR),powder X-ray diffraction(XRD) and magnetic property measurement system(MPMS).The results show that oleic acid is chemically enwrapped on the surface of SrFe12O19 particles.Magnetic particles modified by oleic acid are highly dispersible and strongly responsive to magnetism but with slight decrease in saturated magnetization.The affinity between magnetic particles and monomers is improved by surface modification,resulting in increased particle incorporation in magnetic polymeric microspheres.The surface modification mechanism of magnetic particles by oleic acid is addressed in this work.Sifang Kong Peipei Zhang Xiufang Wen Pihui Pi Jiang Cheng Zhuoru Yang Jing Hai 2008Particuology2008,6,3:7
5Preparation and characterization of porous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride nanocomposite microspheres显示文摘Mesoporous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride [P(St-DVB)/MA] nanocomposite microspheres were prepared by an open ring reaction method.The titania nanoparticles were first modified by attachment of amino groups to their surface to prevent particle aggregation,and to allow the nanoparticles to covalently bond the polymer microspheres,the surface of which was modified by attachment of MA functional groups to enable the polymer to retain their porous structures and to react with the amino groups on the surface of the titania particles.The porous nanocomposite microspheres were detected by FTIR,SEM,TEM,XRD and UV-Vis spectrophotometry.The results indicated that the nanocomposite microspheres were composed of nanosized titania uniformly distributed on the surface,and exhibited better UV absorbing property than pure polymer microspheres or unmodified titania.Furthermore,compared with pure porous polymer microspheres,the nanocomposite microspheres showed more efficient UV protection and slow release of Parsol-1789(a photo-reactive and cosmetic agent) held inside the porous network of the microspheres.Li Sen Wang Kuan Zhang ZhiRen Song ChunLian Cheng Jiang Yang ZhuoRu Wen XiuFang Pi PiHui 2010Science China Chemistry2010,53,3:3
6High-quality instant black tea manufactured using fresh tea leaves by two-stage submerged enzymatic processing显示文摘Repeated thermal treatment could impair the flavor of instant black tea(IBT)as the volatile compounds and characteristic constituents dramatically vary during the manufacturing process.Utilization of fresh leaves as raw material in IBT manufacture at low temperature may become an alternative to conventional extraction methods.This study aimed to improve the quality of IBT using fresh tea leaves by a two-stage enzymatic processing.The influence of combined enzymatic oxidation and extraction conditions for maximal extractable flavour(taste and aroma)characteristics from fresh tea leaves were investigated.The changes of aroma profiles and chemical constituents including theaflavins(TFs),thearubigins(TRs),theabrownines(TBs)and TRs/TFs ratio in converted tea brews under two-stage enzyme catalyzed fermentation and extraction conditions were further compared between different treatments,based on which the optimised conditions were determined.During the two-stage enzymatic processing,75 kinds of volatile compounds were identified in all processed samples,and the contents of TFs,TRs,TBs and TRs/TFs ratio could be optimized by adjusting different procedures and parameters.The overall properties of final product were compared with two types of commercial IBT.High quality IBT with desired properties and antioxidant activity can be manufactured using fresh tea leaves by two-stage enzymatic processing approach.Junhao Kong Xiufang Yang Xiaobo Zuo Xiaoqin Su Bing Hu Xinle Liang 2022Food Science and Human Wellness2022,11,3:2
7Demonstration of epitaxial growth of strain-relaxed GaN films on graphene/SiC substrates for long wavelength light-emitting diodes显示文摘Strain modulation is crucial for heteroepitaxy such as GaN on foreign substrates.Here,the epitaxy of strain-relaxed GaN films on graphene/SiC substrates by metal-organic chemical vapor deposition is demonstrated.Graphene was directly prepared on SiC substrates by thermal decomposition.Its pre-treatment with nitrogen-plasma can introduce C–N dangling bonds,which provides nucleation sites for subsequent epitaxial growth.The scanning transmission electron microscopy measurements confirm that part of graphene surface was etched by nitrogen-plasma.We study the growth behavior on different areas of graphene surface after pre-treatment,and propose a growth model to explain the epitaxial growth mechanism of GaN films on graphene.Significantly,graphene is found to be effective to reduce the biaxial stress in GaN films and the strain relaxation improves indium-atom incorporation in InGaN/GaN multiple quantum wells(MQWs)active region,which results in the obvious red-shift of light-emitting wavelength of InGaN/GaN MQWs.This work opens up a new way for the fabrication of GaN-based long wavelength light-emitting diodes.Ye Yu Tao Wang Xiufang Chen Lidong Zhang Yang Wang Yunfei Niu Jiaqi Yu Haotian Ma Xiaomeng Li Fang Liu Gaoqiang Deng Zhifeng Shi Baolin Zhang Xinqiang Wang Yuantao Zhang 2021Light(Science & Applications)2021,10,7:2
8Impact of copy number of distinct SV40PolyA segments on expression of a GFP reporter gene显示文摘The presence of Alu repeats downregulates the expression of the green fluorescent protein(GFP) gene.We found that SV40PolyA(PolyA,240 bp),in either orientation,eliminated the inhibition of GFP gene expression induced by Alu repeats when it was placed between the GFP gene and the Alu repeats.In this study,4 different segments(each 60 bp) were amplified from antisense PolyA(PolyAas) by PCR,and inserted upstream of Alu14 in pAlu14 plasmid(14 Alu repeats inserted downstream of the GFP gene in vector pEGFP-C1 in a head-tail tandem manner).Segments 1F1R(the first 60 bp segment at the 5' end of PolyAas) and 4F4R(the fourth 60 bp segment from the 5' end of PolyAas) did not activate GFP gene expression,whereas 2F2R and 3F3R(the middle two segments) did(as detected by Northern blot analysis and fluorescent microscopy).Different copy numbers of 2F2R and 3F3R segments,in a head and tail tandem manner,were inserted downstream of the GFP gene in pAlu14.p2F2R*4-Alu28,p3F3R*4-Alu18 and p3F3R*4-Alu28 were used as length controls to verify that the decrease in the expression of GFP was not due to the increased length of the inserted segment in the expression vectors.We found that 2 and 4 copies of 2F2R or 3F3R activated the GFP gene more strongly than one copy of them.However,more than 8 copies of 2F2R or 3F3R reduced the activation of the GFP gene.We concluded that SV40PolyAas contained at least two gene-activating elements(2F2R and 3F3R) and 2-4 copies of 2F2R or 3F3R were optimal for the expression of the GFP gene.YIN Kang,WANG XiuFang,MA Huan,XIE Ying,FENG JingJing,YANG QinQing & Lü ZhanJun Hebei Key Lab of Laboratory Animal,Department of Genetics,Hebei Medical University,Shijiazhuang 050017,China 2010Science China(Life Sciences)2010,53,5:2
9Crosslinked polyurethane–epoxy hybrid emulsion with core–shell structure显示文摘Xiufang Wen Ruilian Mi Ying Huang Jiang Cheng Pihui Pi Zhuoru Yang 2010Journal of Coatings Technology and Research2010,,3:2
10Antibacterial effect of metallic glasses显示文摘The antibacterial effect of Fe-based,Ni-based and Cu-based metallic glasses has been studied in this research.All test metallic glasses were found to inhibit growth of Esherichia coli.The optical density value of E.coli flocculation exposed to metallic glasses,from which the number of bacteria was determined,was 65% lower than that of the match group,and 57% lower than that of the ferrite group.Moreover,the antibacterial effect was not significantly different(σ=0.05) between Cu-based,Ni-based and Fe-based metallic glasses.These results extend our understanding of the antibacterial effect of metallic antibacterial materials,and suggest new applications for metallic glasses.LIN Bao MU Ren YANG LiFu BIAN XiuFang 2012Chinese Science Bulletin2012,57,9:2
11Morphologies and Superhydrophobicity of Hybrid Film Surfaces Based on Silica and Fluoropolymer显示文摘Fluoropolymer and different kinds of silica particles were used for controlling surface chemistry and morphology, respectively.A superhydrophobic surface originated from strawberry-like or quincunx-shaped composite silica particles was obtained.The dual size particles are obtained by utilizing the graft of different modified silica particles with epoxy functional group and amine functional group.This makes the surface of film form a composite interface to have irregular binary structure which plays an essential role in trapping air between the substrate surface and the liquid droplets to be necessary for high contact angle and low contact angle hysteresis.The maximum contact angle for water on the hybrid film is about 174±2°and the contact angle hysteresis is less than 2°.The surface morphologies,roughness and the wettability on the surface of films containing different structural silica particles were compared.It was shown that the hierarchical irregularly structure with a low roughness factor and high air-trapped ratio is indispensable for superhydrophobic surface. Although this structural surfaces based on composite silica particles play a vital role in governing the surface wettability,it is necessary to combine with a low surface energy to make the surface superhydrophobic.Ailan QU Xiufang WEN Pihui PI Jiang CHENG Zhuoru YANG 2008Journal of Materials Science & Technology2008,24,5:2
12Apolipoprotein E polymorphism in northern Chinese elderly patients with coronary artery disease显示文摘Background and objective Apolipoprotein E is a constituent of lipoproteins with considerable variation due to cysteine-arginine exchanges. We investigated the relationship between apo E gene polymorphism and the occurrence of coronary artery disease(CAD) in the older population of northern China. Methods The distribution of the HhaI polymorphisms of the apolipoprotein E gene was determined among 55 patients with CAD (CAD group), which was compared with that of 36 elderly subjects without CAD(control group). Results Genotype distributions at both sites (apo E gene 112-bp and 158-bp sites ) were different between the CAD and control groups. The CAD group had lower apolipoprotein E'ε2'frequencies than the control group (P<0.05). Conclusion Individuals with apolipoprotein E'ε2'are likely to have a reduced risk of developing coronary artery disease as demonstrated by elderly subjects in Northern China.Yangchun ZOU Dayi HU Xiufang HONG Xingyuan JIA Xinchun YANG Liang CUI 2006Journal of Geriatric Cardiology2006,3,2:1
13Effect of K/Na on Microstructure of High-speed Steel Used for Rolls显示文摘Pan Yichuan Yang Hua Liu Xiangfa Bian Xiufang 2004Materials Letters2004,58,1213:1
14A novel method to fabricate superhydrophobic surfaces based on well-defined mulberry-like particles and self-assembly of poludimethylsiloxane 显示文摘YANG Jinxin PI Pihui WEN Xiufang 2009Applied Surface Science2009,255,6:1
15Electroless Ni–P plating with a phytic acid pretreatment on AZ91D magnesium alloy显示文摘Xiufang Cui Guo Jin Qingfen Li Yuyun Yang Ying Li Fuhui Wang 2010Materials Chemistry and Physics2010,,1:1
16Corrosion behaviors in physiological solution of cerium conversion coatings on AZ31 magnesium alloy显示文摘Xiufang Cui Yuyun Yang Erbao Liu Guo Jin Jinggao Zhong Qingfen Li 2011Applied Surface Science2011,,23:1
17Synthesis andluminescence properties of highly uniform spherical SiO2@SrSi2O2N2:Eu2+core–shell structured phosphors显示文摘TANG Jiaye YANG Xiufang ZHAN Cheng 2012J Mater Chem2012,22,48:1
18A new method to prepare water based Fe304 ferrofluid with high stabilization 显示文摘Guo Tongxiao Bian Xiufang Yang Chuncheng 2015Physica A2015,438,:1
19Effect of K/Na on microstructure of high-speed steel used for rolls显示文摘 Yang Hua Liu Xiangfa Bian Xiufang 2004Materials Letters2004,58,1213:1
20Synthesis of functional magnetic porous SrFe 12 O 19 /P(St-DVB-MAA) microspheres by a novel suspension polymerization显示文摘Sifang Kong Jiang Cheng Yangsheng Liu Xiufang Wen Pihui Pi Zhuoru Yang 2008Central European Journal of Chemistry2008,,4:1
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