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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 194-203页

作者：王振李化建 HUANG Fali YANG Zhiqiang WEN Jiaxin shi henan Railway Engineering Research Institute China Academy of Railway Science Corporation Limited State Key Laboratory for Track Technology of High-Speed Railway

In order to achieve the large-scale application of manufactured sand in railway high-strength concrete structure,a series of high-strength manufactured sand concrete (HMC) are prepared by taking the manufactured sand lithology (tuff,limestone,basalt,granite),stone powder content (0,5%,10%,15%) and concrete strength grade (C60,C80,C100) as *** evolution of mechanical properties of HMC and the correlation between cubic compressive strength and other mechanical properties are *** to river sand,manufactured sand enhances the cubic compressive strength,axial compressive strength and elastic modulus of concrete,while its potential microcracks weaken the flexural strength and splitting tensile strength of *** powder content displays both positive and negative effects on mechanical properties of HMC,and the stone powder content is suggested to be less than 10%.The empirical formulas between cubic compressive strength and other mechanical properties are proposed.

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Technological Study on Instant Date Powder in Natural Ziziphus jujuba through Vacuum Freeze-drying

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Agricultural Science & Technology 2010年第7期11卷 69-71,175页

作者： ZHANG Jun-he GAO Hai-yan shi Rui henan Institute of Science and Technology Xinxiang 453003

[Objective] The aim was to get optimized conditions for date powder with good color and taste.[Method] The pectinase enzymolysis and vacuum freeze-drying technology were used in the extract process of date powder.[Result] The production boasts of superior quality were with rich fragrance and uniform particle under certain process *** optimized conditions for pectinase enzymolysis were:the amount of pectinase reached to 0.1% of that of date syrup,enzymolysis temperature and time were 50 ℃ and 50 min respectively,the pH value was *** optimized conditions for vaccum freeze-drying were:10% altodextrin,three times volumn of water with the thickness of 7 mm.[Conclusion] The optimized conditions were obtained in this study to produce instant date powder from Ziziphus jujuba.

关键词： Pectinase Date powder Vacuum freeze-drying Ziziphus jujuba

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CHARACTERIZATION OF SOME SCHIFF BASES OF HETEROCYCLIC COMPOUNDS AND THEIR TRANSITION METAL COMPLEXES

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Chinese Chemical Letters 1991年第9期2卷 681-682页

作者： Geng ZHANG Jun Ming TANG Quan Ling LOU Zan shi Department of Chemistry,henan Normal University,Xinxiang,453002

Some new Schiff bases were synthesized by the condensation of equimolar quantities of salicylaldehyde and 2-amino-5-phenylazo-pyridine or its derivatives in dry benzene(1):Metal complexes of the type ML_2and M'L_3 where M=Cu^(2+),Co^(2+),Ni^(2+),Mn^(2+)Pd^(2+),M'=Fe^(3+)and L=different newly synthesized monobasic Schiff bases were prepared in absolute ethanolic medium(2)and characterized by elementary analysis,conductance measurements,infrared spectra,electronic spectra,magnetic moments studies.

关键词： CHARACTERIZATION OF SOME SCHIFF BASES OF HETEROCYCLIC COMPOUNDS AND THEIR TRANSITION METAL COMPLEXES

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A survey of the physical fitness of urban women in henan Province

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A survey of the physical fitness of urban women in Henan Pro...

The Redox State of Ascorbate Pool Affects Early-flowering Induced by Low Temperature in Tobacco

2008奥林匹克科学大会

作者： Qu,Dong-hua & shi,You-kuan henan University,China

Introduction The fitness of urban women and the social and cultural reasons behind participation in physical activity are important health issues in ***,this study aims to explore these issues to provide a reference for the sports administration departments of henan Province for policy formulation and future development plans for the promotion of sport for the population.

关键词： A survey of the physical fitness of urban women in henan Province

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The Redox State of Ascorbate Pool Affects Early-flowering In...

Time-Dependent Density Functional Theory (TDDFT) Study on the Electronic Excited-State Geometric Structure,Infrared Spectra,and Hydrogen Bonding of a Doubly Hydrogen-Bonded Complex

中国生物化学与分子生物学会农业生物化学与分子生物学分会第八次学术研讨会

作者： Yongchun shi Weiqun Liu (henan Agricultural Universtiy,National Key Lab of Tobacco Planting and Physiology and Biochemistry)

The early-flowering induced by low temperature affects the quality and quantity of tobacco *** the molecular mechanisms of this phenomenon is the key way to solve this *** (SUPPRESOR OF OVEREXPRESSION OF CO1) is a central flowering time pathway integrator which finally leads to the activation of floral meristem identity genes and the formation of *** ascorbate oxidase (AO) and the dehydroascorbate reductase (DHAR) catalyze the oxidation of ascorbic acid (AsA) and the reduction of dehydroascorbate *** flowering time would be affected by over expression or inhibition *** haven’t been reported that whether the early-flowering induced by low temperature is regulated by the redox state of ascorbic acid.

关键词： low temperature early-flowering SOCl ascorbic acid

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Time-Dependent Density Functional Theory (TDDFT) Study on th...

THE LONGITUDINAL OBSERVATION OF THE EFFECT OF ANTIBIOTICS ON HUMAN TEAR LYSOZYME ACTIVITY

第十五届全国原子与分子物理学术会议

作者： YUFANG LIU,~* JUNXIA DING,RUIQIONG LIU,DEHENG shi,JINFENG SUN henan Normal University,Xinxiang 453007,China

The geometric structures and infrared spectra in the electronically excited state of a novel doubly hydrogen-bonded complex formed by Fluorenone and alcohols,which has been observed by infrared spectra in experimental study,are investigated by the time-dependent density functional theory(TDDFT) *** geometric structures and infrared spectra in both ground state and the S state of this doubly hydrogen-bonded FN-2MeOH complex are calculated using the DFT and TDDFT methods,*** intermolecular hydrogen bonds are formed between FN and methanol molecules in the doubly hydrogen-bonded FN-2MeOH complex. Moreover,the formation of the second intermolecular hydrogen bond can make the first intermolecular hydrogen bond become slightly ***,it is confirmed that the spectral shoulder at around 1700 cm observed in the IR spectra should be assigned as the doubly hydrogen-bonded FN-2MeOH complex from our calculated *** electronic excited-state hydrogen bonding dynamics is also studied by monitoring some vibraitonal modes related to the formation of hydrogen bonds in different electronic *** a result,both the two intermolecular hydrogen bonds are significantly strengthened in the S state of the doubly hydrogen-bonded FN-2MeOH *** hydrogen bond strengthening in the electronically excited state is similar to the previous study on the singly hydrogen-bonded FN-MeOH complex and play important role on the photophysics of Fluorenone in solutions.

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Eye Science 1989年第Z1期14卷 60-64页

作者： Peizeng Yang Xiaofang Zhang Jinsong Zhang Yidan Wu Ruhong shi Department of Ophthalmology, henan Medical University Zhengzhou, China

It is well known that lysozyme, which catalyzes the hydrolysis of bacterial cell walls, is one of the important substances protecting the eye surface from bacterial infections. It was reported that the aminoglycoside antibiotics strongly inhibited the tear lysozyme activity. The lysozyme activity of tears which were added to different con- centrations of two aminoglycoside antibiotics and three other antibiotics was determined longitudinally. No influence of any antibiotics on tear lysozyme activity was found. Therefore it is unnecessary to worry about that the use of aminoglycosida antibic tics may weaken the defence function of the eye.

关键词： antibiotics lysozyme hydrolysis worry protecting inhibited unnecessary penetrating saline tears

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