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Chemicals Used in Polymeric Material Coated Waste Paper Composites

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Journal of Materials Science and Chemical Engineering 2023年第5期11卷 1-10页

作者： Zübeyde Bülbül Birol Üner Vocational School of Forestry Istanbul University-Cerrahpa&#351a Istanbul Türkiye Forest Products Engineering Faculty of Forestry Isparta University of Applied Sciences Isparta Türkiye

In this research, at different quantities as fillers, Boric Acid, Calcite (CaCO3), SPT (Sodium Perborate Tetrahydrate) and as coupling matters, 3%, MAPE (Maleic Anhydride Grafted Polyethylene), Titanate and Silanyl (Vinyltriethoxysilane) were added waste paper. Composite boards were pressed and cut in 1 × 30 × 30 cm. In order to identify some properties of the produced boards, experimental works were applied according to the standards. In conclusion, bending stress reduced with filler materials and chemicals was reduced even more than the bending stress except for some experimental groups. In addition, it was observed that the coupling chemicals increased the bending strength and modulus of elasticity compared to the fillers.

关键词： Matching Chemicals Paper Composites Filling Materials Polymers Coupling Agents Paper Fibers

Information Fusion for Process Acquisition in the Operating Room

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Open Journal of Applied Sciences 2012年第4期2卷 195-198页

作者： Thomas Neumuth Christian Meiвner Innovation Center Computer Assisted Surgery(ICCAS)University of Leipzig Leipzig Germany

The recognition of surgical processes in the operating room is an emerging research field in medical engineering. We present the design and implementation of a instrument localization system that is based on information fusion strategies to enhance its recognition power. The system was implemented using RFID technology. It monitored the presence of surgical tools in the interventional site and the instrument tray and combined the measured information by applying redundant, complementary, and cooperative information fusion strategy to achieve a more comprehensive model of the current situation. An evaluation study was performed that showed a correct classification rate of 97% for the system.

关键词： surgical procedure workflow proces modeling operating room computer-assisted surgery information fusion

Crown and leaf traits as predictors of subtropical tree sapling growth rates

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Journal of Plant Ecology 2017年第1期10卷 136-145页

作者： Ying Li Wenzel kröber Helge Bruelheide Werner Härdtle Goddert von Oheimb Faculty of Sustainability Leuphana University LüneburgInstitute of EcologyScharnhorststraße 1D-21335 LüneburgGermany Martin Luther University Halle Wittenberg Institute of Biology/Geobotany and Botanical GardenAm Kirchtor 1D-06108 HalleGermany German Centre of Integrative Biodiversity Research(iDiv)Halle-Jena-Leipzig Deutscher Platz 5eD-04103 LeipzigGermany Faculty of Environmental Sciences Technische Universität DresdenInstitute of General Ecology and Environmental ProtectionPienner Straße 7D-01735 TharandtGermany

Aims Growth rates of plants are driven by factors that influence the amount of resources captured and the efficiency of resource *** trees,the amount of light captured and the efficiency of light use strongly depends on crown characteristics and leaf *** theory predicts that both crown and leaf traits affect tree growth,few studies have yet to integrate these two types of traits to explain species-specific growth *** 37 broad-leaved tree species of subtropical forests in SE China,we investigated how interspecific differences in wood volume growth rates were affected by crown and leaf *** tested the hypotheses that(i)larger crown dimensions promote growth rates,(ii)species-specific growth rates are positively related to leaf stomatal conductance,leaf water potential and leaf chemical components,and negatively related to leaf C/N and leaf toughness and(iii)the two sets of traits better explain growth rates in combination than either *** Our study was conducted in a large-scale forest Biodiversity and Ecosystem Functioning experiment in China(BEF-China),located in a mountainous region in Jiangxi *** related 17 functional traits(two crown dimension and three crown structure traits;six physiological and six morphological leaf traits)to the mean annual growth rate of wood volume of young trees of the studied *** between crown and leaf traits were analyzed using principal component *** linear regression analysis was used to test the effect of each trait *** used multiple regression analysis to establish the relationship of growth rate to each set of traits(crown traits,physiological and morphological leaf traits)and to the combination of all types of *** coefficients of determination(R^(2)_(adj))of the best multiple regression models were compared to determine the relative explanatory power of crown and leaf traits and a combination of *** Findings The species-spec

关键词： BEF China crown characteristics physiological leaf traits morphological leaf traits wood volume

INSITUFTIR　SPECTRAL　STUDY　OF　THE　OXYGEN　ADSPECIES　ON　SrF_2／La_2O_3　CATALYST　DURING　THE　OXIDATIVE　COUPLING　OF　METHANE

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Chinese Chemical Letters 1995年第8期6卷 727-730页

作者： Long, RQ Zhou, SQ Huang, YP Wang, HY Wan, HL Tsai, kr Xiamen Univ Dept Chem Xiamen 361005 Peoples R China Xiamen Univ State Key Lab Phys Chem Solid Surface Xiamen 361005 Peoples R China

In situ FTIR spectra have been used to characterize surface oxygen and adspccies on 20%SrF2/La2O3 catalyst and for the oxidative coupling of methane (OCM).The O2- sur face superoxide with characteristic vibration frequency at 1113-1123 cm-1 was formed on the sample after treatment with H2 at 700℃ following exposure to O2 at temperatures between 650℃ and 25℃,The O2 adspecies could also be detected on the working sample at 65O℃ and might play an important role in OCM reaction leading to the production of C2H4 from CH4. These results provide evidence that superoxide ions may be the active oxygen on 20%SrF2/La2O3 catalyst during the oxidative coupling of methane.

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微量石榴石Sm-Nd等时线定年:南非林波波带高级变质岩中的应用

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微量石榴石Sm-Nd等时线定年:南非林波波带高级变质岩中的应用

Vitamin C and E supplementation and high intensity interval training induced changes in lipid profile and haematological variables of young males

2018年中国地球科学联合学术年会

作者：周甜李秋立李潮峰 Alfred kr?ner 中国科学院地质与地球物理研究所中国科学院大学地球与行星科学学院 Johannes Gutenberg Universitat

南非林波波带的中部带主要经历三个变质演化阶段:3.22 Ga(M1),～2.66-2.61 Ga(M2)和2.02±0.02 Ga(M3)。侵位时间～2.61 Ga的布莱岩体(Bulai Pluton)的内部和边部均存在变泥质岩块体。前人通过变质锆石年代学研究显示,岩体边部变泥质岩... 详细信息

南非林波波带的中部带主要经历三个变质演化阶段:3.22 Ga(M1),～2.66-2.61 Ga(M2)和2.02±0.02 Ga(M3)。侵位时间～2.61 Ga的布莱岩体(Bulai Pluton)的内部和边部均存在变泥质岩块体。前人通过变质锆石年代学研究显示,岩体边部变泥质岩经历M2和M3两期麻粒岩相变质作用,

关键词：高级变质岩等时线 Sm-Nd 石榴石林波波带

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Sports Medicine and Health Science 2023年第2期5卷 137-145页

作者： Surojit Sarkar Swapan kr Dey Gouriprosad Datta Amit Bandyopadhyay Department of Physiology Rammohan College1021Raja Ram Mohan SaraniBaithakkhanaKolkata700009West BengalIndia Department of Sports Science University of CalcuttaUniversity Colleges of Science and Technology92A.P.C.RoadKolkata700009West BengalIndia Sports and Exercise Physiology Laboratory Department of PhysiologyUniversity of CalcuttaUniversity Colleges of Science and Technology92A.P.C.RoadKolkata700009West BengalIndia

High intensity interval training(HIIT)causes oxidative stress and haematological *** study was aimed to evaluate the effect of 8 weeks’supplementation of vitamin C and E on HIIT induced changes in lipid profile parameters and haematological *** six male adolescent players were randomly assigned into five age-matched groups,i.e.,Control(no exercise+placebo),HIIT(placebo),HIIT+vitamin-C(1000mg/day),HIIT+vitamin-E 400 IU/day)and combined HIIT+vitamin C and *** and evening sessions(90min)of HIIT included 4 phases(15min each)with 3 sets(4min each).Each 4min HIIT set consisted of 2min intense sprint workout(90%–95%of heart rate maximum[HRmax])followed by 1min active recovery(60%–70%HRmax)followed by 1min of complete rest(1:1 work-rest ratio).Lipid profile parameters,haematological variables,endurance capacity and vertical jump were evaluated by standard *** decrease in body weight,fat%,total cholesterol,triglyceride,Total Cholesterol/High Density Lipoprotein-Cholesterol and significant increase in High Density Lipoprotein-Cholesterol,maximal oxygen consumption,vertical jump were observed for all four intervention *** blood cell count,red blood cell count,haemoglobin percentage and haematocrit values were significantly decreased while platelet count and platelet-to-leukocyte ratio(PLR)ratio were increased significantly only for HIIT *** level of tocopherol and ascorbic acid was significantly increased(values were within the normal range)in all the respective vitamin supplemented *** of vitamin C and E secures health protection with suppressed haemolysis and improved inflammatory blood variables with enhanced explosive leg strength and lipid profile parameters without any concomitant change in endurance capacity.

关键词： Sprint interval training Lipid profile Haematological indices Haemolysis Athletes

A note on scalar meson dominance

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Chinese Physics C 2019年第10期43卷 46-49页

作者： Y.ünal Ulf-G.Meiβner Helmholtz-Institut für Strahlen-und Kernphysik and Bethe Center for Theoretical Physics Universitat BonnD-53115 BonnGermany Physics Department Canakkale Onsekiz Mart University17100 CanakkaleTurkey Institute for Advanced Simulation Institut für Kernphysik and Jülich Center for Hadron PhysicsForschungszentrum JülichD-52425 JülichGermany Tbilisi State University 0186 TbilisiGeorgia

We consider chiral perturbation theory with an explicit broad σ-meson and study its contribution to the scalar form factors of the pion and the nucleon. Our goal is to learn more about resonance saturation in the sca... 详细信息

关键词： chiral Lagrangians scalar mesons resonance saturation

Mid-infrared Q-switch performance of ZrC

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Photonics Research 2020年第12期8卷 1857-1861页

作者： YANGYANG LIANG TAO LI WENCHAO QIAO TIANLI FENG SHENGZHI ZHAO YUEFENG ZHAO YUZHI SONG CHRISTIAN krÄNKEL China Key Laboratory of Laser&Infrared System(Shandong University) Ministry of EducationQingdao 266237China School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology and ApplicationShandong UniversityQingdao 266237China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal UniversityJinan 250358China School of Physics and Electronics Shandong Normal UniversityJinan 250358China Leibniz-lnstitut fur kristallzuchtung 12489 BerlinGermany

Zirconium carbide(ZrC)with layered structure and nanoparticle morphology was prepared by sonication in an ethyl alcohol *** morphology and saturable absorption properties of the ZrC were systematically *** using ZrC nanoparticle coated substrates as saturable absorbers,stable Q-switched 3μm Er:Lu_(2)O_(3) lasers were *** durations of 50 ns with pulse energies of 20μJ and peak power of 0.4 kW are the shortest obtained with novel-material-based Q-switched lasers in the 3μm wavelength range.

关键词： switched absorber shortest

Ethnopharmacology, phytochemistry and pharmacology of Tephrosia purpurea

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Chinese Journal of Natural Medicines 2014年第1期12卷 1-7页

作者： Satadru Palbag Bijay kr.Dey Narendra Kumar Singh Faculty of Ayurveda Institute of Medical Sciences Banaras Hindu University Bengal Institute of Pharmaceutical Sciences SPLPIM Campus Jadavpur University

Tephrosia purpurea(L.) Pers. is popularly known as ‘Sarapunkha' in classical Ayurvedic texts. It is a perennial plant belonging to the family Fabaceae, and occurs throughout the Indian subcontinent. T. purpurea is traditionally used to treat spleenomegaly, cirrhosis, cough and cold, abdominal swelling and as an antidote in the Ayurvedic system of medicine. Phytochemical investigations indicate the presence of semiglabrin, pongamole, lanceolatins A and B, rutin, lupeol, and β-sitosterol. Flavonoids including(+)-tephrorin A and B,(+)-tephrosone, an isoflavone, 7, 4'-dihydroxy-3', 5'-dimethoxyisoflavone and a chalcone,(+)-tephropurpurin were isolated from the whole plant. Pharmacological activities of different parts of the plant reported include anti-inflammatory, antiulcer, antimicrobial, antioxidant, antiallergic, antidiabetic, hepatoprotective, antitumor and insect repellent activity. In the present review, the literature on the phytochemical and pharmacological investigations of Tephrosia purpurea(L.) Pers. are summarized to August, 2012.

关键词： Tephrosia purpurea Phytoconstituents Flavonoids Antitumor Anti-inflammatory Hepatoprotective