检索结果-南通市图书馆

Agricultural Sciences in China 2010年第7期9卷 1058-1064页

作者： XIE Yan-li ZHOU Hui-ming liang xin-hong HE Bao-shan HAN Xiao-xian School of Food Science and Technology Henan University of Technology Zhengzhou 450052 P.R. China School of Food Science and Technology Jiangnan University Wuxi 214122 P.R.China School of Food Science and Technology Henan Institute of Science and Technology Xinxiang 453003 P.R. China

The morphology,particle size distribution and thermal properties of microcapsules were evaluated by scanning electron microscopy（SEM）,laser diffraction particle size analyzer and differential scanning calorimetry（DSC）.Vitamin A was used as model core material,HI-CAP 100（starch octenylsucciniate,OSA-starch） was used as wall material and prepared by spray *** emulsions were prepared with 40%（w/v） solution of total solids concentration at the core/wall material ratios of 40%（w/w）,the microencapsulation efficiency（ME） was（96.38 ± 0.71）%.Microcapsules exhibited spherical shapes with characteristic dents as evidence by *** the vibrating frequency of the centrifugal granulation from 40,35,30,25 to 20 Hz,the volume diameter（D4,3） was 66.58,71.44,85.61,94.08,and 153.45 μm,*** scanning calorimetry（DSC） results revealed that the glass transition temperature（Tg） and melting temperature（Tm） were 56.355 and 208.300°C,*** A microcapsules produced with HI-CAP 100 exhibited spherical shapes with characteristic dents,which was attributed to drying and cooling solidification involved during *** vibrating frequency of the centrifugal granulation had effect on the particle size distribution of microcapsules（P 〈 0.05）.The storage and heating stability of microcapsules was well by thermal properties.

关键词： vitamin A HI-CAP 100 microcapsule morphology particle size distribution thermal properties

Spectrophotometric Determination of Arginine in Grape Juice Using 8-Hydroquinoline

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Agricultural Sciences in China 2008年第10期7卷 1210-1215页

作者： WANG Hua liang xin-hong ZHAO Rui-xiang FENG Li-dan LI Hua College of Enology Northwest A ＆ F University Yangling 712100 P.R.China School of Food Science Henan Institute of Science and Technology Xinxiang 453003 P.R.China Shaanxi Engineering Research Center for Viti-Viniculture Yangling 712100 P.R.China

Arginine in grape juice can be metabolized by wine yeasts and malolactic bacteria to precursors of ethyl carbamate, known as carcinogen. The aim of this study was to develop a simple, fast, and accurate method for determining arginine in grape juice with Sakaguchi reaction by separating arginine with strong cation-exchange resins. Parameters were optimized including the concentrations of 8-hydroquinoline and sodium hydrobromite. The color stability lasted for 4 min, which is sufficient to finish the measurement. The method is simple, reproducible and accurate, and can be applied for quick measurement of arginine in grape juice to take necessary measures for controlling the level of ethyl carbamate.

关键词： grape juice L-arginine ethyl carbamate Sakaguchi reaction

Sky location of massive black hole binaries in the foreground of Galactic white dwarf binaries

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 97-108页

作者： Pan Guo hong-Bo Jin Cong-Feng Qiao Yue-liang Wu The International Centre for Theoretical Physics Asia-Pacific University of Chinese Academy of Sciences The School of Physical Sciences University of Chinese Academy of Sciences Institute for Frontiers in Astronomy and Astrophysics Beijing Normal University National Astronomical Observatories Chinese Academy of Sciences Institute of Theoretical Physics Chinese Academy of Sciences

For space-based gravitational wave （GW） detection,the main noise source for massive black hole binaries （MBHBs） is attributed to approximately 10～7double white dwarf binaries in the *** a GW source,the amplitude of the detector response,recorded by a space-based gravitational wave detector,exhibits a modulation effect with a year period when observing the source from various orbital *** the adverse conditions mentioned above,where there is a strong foreground noise and annual modulation in the signals,we employed the wavelet transform and the strong-amplitude relevant orbital position search methods,which allows the weak MBHB sources to achieve higher locating *** detail,for two MBHB sources of lower intensity,the precision of luminosity distance,represented by the ratio ?DL/DLat the 95%confidence level,is enhanced by factors of ～*** angular resolutions,denoted by??s,are enhanced by a factor of ～*** improvements increase the number of detectable GW sources,facilitate multi-messenger follow-up observations and provide constraints on the cosmological constant.

关键词： space-based gravitational wave detection gravitational waves massive black hole binaries

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中国企业的竞争趋同问题初探

商业研究 2005年第19期 43-45页

作者：梁新弘暨南大学管理学院广东广州510632

日常生活,广告战与价格战的硝烟不绝于耳,中国企业市场竞争的激烈程度可见一斑。透过现象看本质,中国企业不得不大打价格战的深层原因就是竞争趋同。首先从核心竞争力的角度入手,分析典型的战略型企业免于竞争趋同的方式;然后进一步探... 详细信息

日常生活,广告战与价格战的硝烟不绝于耳,中国企业市场竞争的激烈程度可见一斑。透过现象看本质,中国企业不得不大打价格战的深层原因就是竞争趋同。首先从核心竞争力的角度入手,分析典型的战略型企业免于竞争趋同的方式;然后进一步探讨中国企业竞争趋同的原因和后果;最后结合中国企业的现状提出了一些建议。

关键词：竞争趋同经营有效性核心竞争力战略

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang liang Yu-Gang Ma xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

Flexible Graphene Field‑Effect Transistors and Their Application in Flexible Biomedical Sensing

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Nano-Micro Letters 2025年第2期17卷 252-313页

作者： Mingyuan Sun Shuai Wang Yanbo liang Chao Wang Yunhong Zhang hong Liu Yu Zhang Lin Han Institute of Marine Science and Technology Shandong UniversityQingdao 266237ShandongPeople’s Republic of China State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100ShandongPeople’s Republic of China School of Integrated Circuits Shandong UniversityJinan 250100ShandongPeople’s Republic of China Shandong Engineering Research Center of Biomarker and Artificial Intelligence Application Jinan250100ShandongPeople’s Republic of China

Flexible electronics are transforming our lives by making daily activities more *** to this innovation are field-effect transistors(FETs),valued for their efficient signal processing,nanoscale fabrication,low-power consumption,fast response times,and ***,known for its exceptional mechanical properties,high electron mobility,and biocompatibility,is an ideal material for FET channels and *** combination of graphene and FETs has given rise to flexible graphene field-effect transistors(FGFETs),driving significant advances in flexible electronics and sparked a strong interest in flexible biomedical ***,we first provide a brief overview of the basic structure,operating mechanism,and evaluation parameters of FGFETs,and delve into their material selection and patterning *** ability of FGFETs to sense strains and biomolecular charges opens up diverse application *** specifically analyze the latest strategies for integrating FGFETs into wearable and implantable flexible biomedical sensors,focusing on the key aspects of constructing high-quality flexible biomedical ***,we discuss the current challenges and prospects of FGFETs and their applications in biomedical *** review will provide valuable insights and inspiration for ongoing research to improve the quality of FGFETs and broaden their application prospects in flexible biomedical sensing.

关键词： Flexible Graphene Field-effect transistor Wearable Implantable Biosensor

From waste to wealth:Coal tar residue derived carbon materials as low-cost anodes for potassium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 464-475页

作者： Zhonghua Lu Jun Shen xin Zhang Lingcong Chao liang Chen Ding Zhang Tao Wei Shoudong Xu College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Chemistry Taiyuan University of TechnologyTaiyuan 030024China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China

Carbon materials are widely recognized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucially important for the development of a more sustainable *** this study,we employed a straightforward direct carbonization method within the temperature range of 700-1000℃to convert the worthless solid waste CTR into economically valuable carbon materials as anodes for potassium-ion batteries(PIBs).The effect of carbonization temperature on the microstructure and the potassium ions storage properties of CTR-derived carbons(CTRCs)were systematically explored by structural and morphological characterization,alongside electrochemical performances *** on the co-regulation between the turbine layers,crystal structure,pore structure,functional groups,and electrical conductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high reversible capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a desirable cycling stability with 93.8%capacity retention even after 100 cycles,and the remarkable rate performance for PIBs were ***,cyclic voltammetry(CV)at different scan rates and galvanostatic intermittent titration technique(GITT)have been employed to explore the potassium ions storage mechanism and electrochemical kinetics of *** indicate that the electrode behavior is predominantly governed by surface-induced capacitive processes,particularly under high current densities,with the potassium storage mechanism characterized by an“adsorption-weak intercalation”*** work highlights the potential of CTR-based carbon as a promising electrode material category suitable for high-performance PIBs electrodes,while also provides valuable insights into the new avenues for the high value-added utilization of CTR.

关键词： coal tar residue carbon materials anode potassium-ion batteries high value-added

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分光光度法测定葡萄酒中瓜氨酸含量

食品科学 2010年第14期31卷 234-237页

作者：梁新红孙俊良曾洁河南科技学院食品学院河南新乡453003

目的:建立分光光度法定量检测葡萄酒中瓜氨酸含量的方法。方法:依据费伦反应原理,采用分光光度法测定葡萄酒中瓜氨酸含量。结果:建立方法的最佳参数为混合酸中硫酸添加量350mL/L、磷酸添加量200mL/L、三氯化铁质量浓度为50mg/L、反应液... 详细信息

目的:建立分光光度法定量检测葡萄酒中瓜氨酸含量的方法。方法:依据费伦反应原理,采用分光光度法测定葡萄酒中瓜氨酸含量。结果:建立方法的最佳参数为混合酸中硫酸添加量350mL/L、磷酸添加量200mL/L、三氯化铁质量浓度为50mg/L、反应液在100℃的沸水浴中保持5min,暗处室温放置冷却,用分光光度计在波长530nm处测其吸光度。方法的检出限5μg/L,检测葡萄酒样品方法相对标准偏差为2.4%～3.2%,回收率为96.9%～106.6%。结论:此方法简便、快速、准确可靠,适合用于葡萄酒样品中瓜氨酸含量的定量检测。

关键词：分光光度法葡萄酒瓜氨酸费伦试剂

从神性到陌生人力量:贵州傩面具的艺术人类学考察

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教育文化论坛 2014年第4期6卷 124-129页

作者：梁宏信贵州民族大学研究生院贵州贵阳550025

贵州傩面具类型完整、形态丰富,是傩面具研究的活形态资料。傩面具作为驱傩仪式与一般巫术的分界标识是,傩最直观最具象的表征性符号,从傩发展的早期开始就一直为傩事活动所运用。随着纯粹祭祀性傩祭向多艺术因子复合的傩戏过渡,傩面具... 详细信息

贵州傩面具类型完整、形态丰富,是傩面具研究的活形态资料。傩面具作为驱傩仪式与一般巫术的分界标识是,傩最直观最具象的表征性符号,从傩发展的早期开始就一直为傩事活动所运用。随着纯粹祭祀性傩祭向多艺术因子复合的傩戏过渡,傩面具在数量、造型及制作工艺等方面都发生了极大的变化,这种变化可以从贵州现存的傩戏形态中找到不同层次的傩面具形态。在巫术性质的驱傩仪式中,傩面具就如同一张"神圣帷幕"分隔着角色的世俗性与神性,它在"陌生人的力量"的驱使下成就了世俗扮饰者的神性角色,发挥着傩的神秘巫术-宗教性力量。

关键词：傩面具巫术-宗教性角色艺术人类学

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碳源对枯草芽孢杆菌产α-淀粉酶的影响

食品与机械 2010年第5期26卷 13-14,18页

作者：李刚孙俊良葛晓虹梁新红河南科技学院食品学院河南新乡453003

研究可溶性淀粉、蔗糖、葡萄糖3种主要碳源对枯草芽孢杆菌产α-淀粉酶活力、细菌浊度及其发酵培养过程中培养基pH值变化的影响。结果表明,枯草芽孢杆菌在摇床发酵试验中,当发酵时间超过54h酶活力基本达到最高且保持不变。以可溶性淀粉... 详细信息

研究可溶性淀粉、蔗糖、葡萄糖3种主要碳源对枯草芽孢杆菌产α-淀粉酶活力、细菌浊度及其发酵培养过程中培养基pH值变化的影响。结果表明,枯草芽孢杆菌在摇床发酵试验中,当发酵时间超过54h酶活力基本达到最高且保持不变。以可溶性淀粉为碳源时最佳,枯草芽孢杆菌产α-淀粉酶酶活力最高为(114.5±2.3)U/mL,细胞浊度为2.342±0.023;其次是葡萄糖和蔗糖,最高酶活分别为(75.6±2.1),(72.2±1.2)U/mL,细胞浊度分别为2.515±0.031,2.421±0.044。可见枯草芽孢杆菌产生α-淀粉酶受淀粉的诱导,受蔗糖及葡萄糖的阻扼作用。

关键词：碳源枯草芽孢杆菌 α-淀粉酶