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Magnetic Behavior of Ferri-ferromagnetic Alloy in Presence of External Magnetic Field

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Communications in Theoretical Physics 2008年第4期49卷 1059-1063页

作者： hu hong-Liang XIN Zi-hua LIU Wei-Jie Department of Physics Shanghai University Shanghai 200444~ China

The magnetic behavior of the mixed ferro-ferrimagnetie alloy with （Aa Bb Cc）y D structure composed of Ising spins SA=1, SB = 5/2, SC= 2, and SD = 3/2 in the presence of the external magnetic field is investigated by the use of the effective field theory. The role of concentration b is discussed in this system in detail. Results show that for a =0.4, only when the concentration b is in the region 0.60 ≥b 〉 0.34 can the ferrimagnetic behavior be seen. Otherwise, the alloy shows ferromagnetic behavior.

关键词： magnetic susceptibility magnetization Prussian blue analogs effective field theory

Ultafast organic nonlinear optical molecules and the realization of mesoscopic photonic devices

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Chinese Science Bulletin 2010年第20期55卷 2111-2121页

作者： GONG Qihuang hu XiaoYong YANG hong WANG ShuFeng State Key Laboratory for Mesoscopic Physics & Department of Physics Peking University Beijing 100871 China

In the twentieth century,revolutionary changes took place in the human society and people's life-style due to the improvement of the optoelectronic information technology based on the second-order nonlinear optical effects,such as the electro-optic effect,the second harmonic generation(SHG),and so *** with the rapid development of light information technology,new principles and methods of nonlinear optics are needed,and the third-order nonlinear optical effects attract great *** research progress of nonlinear optics is reviewed in this *** research work on the third-order nonlinear optical materials,ultrafast and low-power organic all-optical photonic crystal switching are introduced.

关键词：有机非线性光学光子器件三阶非线性光学效应二阶非线性光学效应非线性光学材料介观分子技术改进

Water-Soluble Constituents of Cudrania tricuspidata(Carr.) Bur.

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Journal of Integrative Plant Biology 2006年第8期48卷 996-1000页

作者： Zong-Ping Zheng Jing-Yu Liang Li-hong hu Shanghai Research Center for Modernization of Traditional Chinese Medicine Shanghai Institute of Materia Medica Shanghai 201203 China Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 China

In order to find new structural and biologically active compounds, the constituents of the bark of Cudrania tricuspidata （Carr.） Bur. were investigated and a new 6-p-hydroxybenzyltaxifolin glucoside, named tricusposide （compound 1）, together with 16 known compounds, was isolated by solvent partition, macroporous adsorption resin AB-8, silica gel, Sephadex LH-20 chromatography. Using spectroscopic methods, the structures of the compounds were elucidated as 6-p-hydroxybenzyl taxifolin-7-O-β-D-glucoside （compound 1）, dihydroquerctin-7-O-β-D-glucoside （compound 2）, dihydrokaempferol-3-O-β-D-glucoside （compound 3）, dihydroquercetin （compound 4）, peonoside （compound 5）, sphaerobioside （compound 6）, quercimeritrin （compound 7）, genistein （compound 8）, aromadendrin （compound 9）, kaempferol （compound 10）, genistin （compound 11）, 3,4-dihydroxystyryl alcohol （compound 12）, sucrose （compound 13）, 1,3,5,6-tetrahydroxyxanthone （compound 14）, gericudranin E （compound 15）, gericudranin C （compound 16）, and orobol （compound 17）. Compounds 2-6, 8, 9, 12-14, and 17 were isolated from this genus for the first time.

关键词： Cudrania tricuspidata flavones water-soluble fraction.

The Impact of Irrigation on Bacterial Community Composition and Diversity in Liaohe Estuary Wetland

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Journal of Ocean University of China 2018年第4期17卷 855-863页

作者： LI Tiantian hu hong LI Zhengyan ZHANG Jianye LI Dong College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Colleget of Marine Life Sciences Ocean University of ChinaQingdao 26610Q China Institute of Wetland Science Panjin 124000China

In this study, the sequencing of 16S ribosomal DNA was used to characterize the soil bacterial community composition and diversity in Liaohe estuarine wetland. Soil samples were taken from different locations in the wetland dominated by reed. Moreover, the soil quality parameters were evaluated(p H, moisture, organic matter, total nitrogen, available nitrogen, total phosphorus, available phosphorus). The results showed that the organic matter and nutrient contents were significantly higher in irrigated wetland than those in natural wetland. Major phylogenic groups of bacteria in soil samples including Proteobacteria, Acidobacteria, Gemmatimonadetes, Actinobacteria and Cyanobacteria were analyzed and we found that Proteobacteria was the most abundant in the community, and the phylum Acidobacteria was more abundant in irrigated wetland. Beta diversity analyses indicated that the soil bacterial community was mainly affected by sampling sites rather than seasons. In general, the bacterial community in natural wetland was not significantly different with that in artificial irrigated wetland. Artificial hydraulic engineering irrigated according to the water requirement rule of reed, increased the production of reeds, changed the way of wetland soil material input, but the diversity of bacterial community kept stable relatively.

关键词： soil bacterial community Liaohe estuary wetland 16S rDNA sequencing nutrient

Resource allocation using time division multiple access over wireless relay networks

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The Journal of China Universities of Posts and Telecommunications 2008年第3期15卷 69-74页

作者： DAI Qin-yun RONG Lu hu hong-lin SU Gang Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200052 China The Department of Electronics and Information Engineering Huazhong University of Science and Technology Wuhan 430074 China

This article considers a wireless network consisting of multiple sources that communicate with the corresponding destination utilizing a single half-duplex relay, whereas, the sources use the relay opportunistically. By integrating the information theory with the concept of effective capacity, this article proposes a dynamic time allocation strategy over the wireless relay network that aims at maximizing the relay network throughput, subject to a given delay quality of service （QoS） constraint, where time division multiple access （TDMA） is applied in the relay network. The simulation results show that the proposed allocation strategy can significantly improve the effective capacity as compared to the traditional equal time allocation strategy.

关键词： resource allocation wireless relay networks effective capacity opportunistic transmission cooperative diversity

Metal/covalent organic frameworks for aqueous rechargeable zinc-ion batteries

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Science China Chemistry 2024年第1期67卷 247-259页

作者： hu hong Xun Guo Jiaxiong Zhu Zhuoxi Wu Qing Li Chunyi Zhi Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China

Lithium-ion batteries(LIBs)have become one of the most successful energy storage systems due to their high operating voltage,high energy density,and long cycle ***,with the widespread use of LIBs in recent decades,lithium resources are at risk of being ***,it is necessary to find a substitute for LIBs to meet the needs of future large-scale energy storage *** of their competitiveness,low cost,and high safety,aqueous rechargeable zinc-ion batteries(ARZIBs)are regarded as promising components in the post-lithium-ion-battery *** the tunable composition,ordered porous channels,and controllable structure of metal-organic frameworks(MOFs)and covalent organic frameworks(COFs),these frameworks are viewed as potential materials for developing high-performance *** this review,we focus on the recent developments in the applications of MOF-/COF-based materials in ARZIBs,including in electrode materials,anode modifications,separators,and solid *** then focus on the critical factors and optimization techniques of MOF-/COF-based materials that affect the performance of ***,we conclude with some projections for the expansion of ARZIBs containing MOF-/COF-based materials.

关键词： metal/covalent organic frameworks aqueous zinc-ion batteries electrode materials anode modifications separators electrolytes

Multi-Parameter Influence Analysis of Interaction Between Internal Solitary Wave and Fixed Submerged Body

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China Ocean Engineering 2023年第6期37卷 934-947页

作者： LIU Shuang HE Guang-hua ZHANG Zhi-gang hu Chang-hong ZHANG Cheng WANG Zheng-ke XIE hong-fei School of Mechatronics Engineering Harbin Institute of TechnologyHarbin 150001China Shandong Institute of Shipbuilding Technology Weihai 264209China School of Ocean Engineering Harbin Institute of TechnologyWeihaiWeihai 264209China Research Institute for Applied Mechanics Kyushu UniversityFukuoka 816-0811Japan

To obtain the interaction characteristics between Internal solitary waves(ISWs)and submerged bodies,a three-dimensional numerical model for simulating ISWs was established in the present study based on the RANS *** velocity entrance method was adopted to generate the ***,the reliability of this numerical model was validated by comparing it with theoretical and literature ***,the influence of environmental and navigation parameters on interactions between ISWs and a fixed SUBOFF-submerged body was *** to research,the hydrodynamic performance of the submerged body has been significantly impacted by the ISWs when the body is nearing the central region of the ***,the pitching moment(y')will predominate when the body encounters the ISWs at a certain angle between 0°and 180°,and the lateral force is larger than the horizontal ***,the magnitude of the force acting on the body is mostly affected by the wave *** variation of the vertical force is the main way that ISWs affect the hydrodynamic performance of the *** investigations and findings discussed above can serve as a guide to forecast how ISWs will interact with submerged bodies.

关键词： CFD internal solitary waves submerged body multi-parameters influence hydrodynamics

Effects of high ambient temperature on lipid metabolism in finishing pigs

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Journal of Integrative Agriculture 2016年第2期15卷 391-396页

作者： WU Xin LI Ze-yang JIA An-feng SU hong-guang hu Chun-hong ZHANG Min-hong FENG Jing-hai Institute of Animal Sciences Chinese Academy of Agricultural Sciences/State Key Laboratory of Animal Nutrition College of Animal Science and Technology Anhui Agricultural University

In this study,we investigated the effects of high ambient temperature on lipid metabolism in finishing *** pigs（（79.6±1.2） kg） were randomly assigned to two groups：（1） ambient temperature of 30℃ with ad libitum access to feed（HT;n=8） and（2） ambient temperature of 22℃ and fed the average amount consumed by eight pigs in HT group on the previous day（PF;n=8）.After 21 days of constant exposure to different environmental conditions,all the pigs were euthanized,and blood and tissue samples were *** ambient temperature increased the proportion of backfat（P=0.04,＋21.6%）and flare fat（P〈0.01,＋43.3%）.Compared with pair-fed pigs,the activities of fatty acid synthase（FAS） and malic enzyme in backfat and flare fat were lower（P〈0.05） in heat-stressed pigs,as were the amounts of acetyl-CoA-carboxylase and FAS in the longissimus muscle（LM）,the amount of FAS in backfat（P〈0.01）,and FAS activity in the liver（P〈0.01）.Ambient temperature did not affect the amount of hormone-sensitive lipase in different *** amount of lipoprotein lipase in flare fat tended to be higher（P=0.09,＋28.3%）,and the activities of β-hydroxyacyl coenzyme A dehydrogenase in front and back of LM were lower（P〈0.01,-48.3 and-49.8%,respectively） at 30℃ than at 22℃.The plasma concentration of high-density lipoprotein tended to be lower（P=0.08）,but the plasma concentrations of very low-density lipoprotein（VLDL）（P=0.09,＋50.0%） and nonestesterified fatty acid（NEFA）（P=0.04,＋44.2%） were higher in heat-stressed *** concluded that high ambient temperature depressed de novo fatty acid synthesis in both adipose tissues and the ***,β-oxidation of fatty acid in skeletal muscles was also inhibited in the high-temperature *** a result,more plasma NEFAs were used to synthesize VLDLs in the liver and were absorbed by adipose *** may be one reason that high ambient temperature enhances the accumulation of backfat and flare fat in finishing pigs.

关键词： β-hydroxyacyl coenzyme A dehydrogenase lipoprotein lipase lipogenesis finishing pigs high ambient temperature

Thermal maturity evaluation using Raman spectroscopy for oil shale samples of USA:comparisons with vitrinite reflectance and pyrolysis methods

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Petroleum Science 2020年第3期17卷 567-581页

作者： MdGolam Kibria Souvik Das Qin-hong hu Asish R.Basu Wen-Xuan hu Subhadip Mandal Department of Earth and Environmental Sciences The University of Texas at Arlington500 Yates StreetArlingtonTX 76019USA Institute of Energy Sciences Nanjing UniversityNanjing 210093China Integrated Reservoir Solutions Core LaboratoriesHoustonTX 77040USA

Thermal maturity is commonly assessed by various geochemical screening methods(e.g.,pyrolysis and organic petrology).In this contribution,we attempt to establish an alternative approach to estimating thermal maturity with Raman spectroscopy,using 24 North American oil shale samples with thermal maturity data generated by vitrinite reflectance(VRo%)and pyrolysis(Tmax)-based maturity calculation(VRe%).The representative shale samples are from the Haynesville(East Texas),Woodford(West Texas),Eagle Ford and Pearsall(South Texas)Formations,as well as Gothic,Mancos,and Niobrara Formation shales(all from Colorado).The Raman spectra of disordered carbonaceous matter(D1 and G bands separation)of these samples were directly obtained from the rock chips without prior sample *** the Gaussian and Lorentzian distribution approach,thermal maturities from VR were correlated with carbon G and *** found that the Raman band separation(RBS)displayed a better correlation for equivalent VRe%than vitrinite reflectance VRo%.The RBS(D1–G)distance versus total organic carbon,free hydrocarbons from thermal extraction(S1),and the remaining hydrocarbon generating potential(S2)indicate that the RBS(D1–G)distance is also related to kerogen *** presented here from three methods of maturity determination of shale demonstrate that Raman spectroscopy is a quick and valid approach to thermal maturity assessment.

关键词： US shale Raman spectroscopy Vitrinite reflectance Thermal maturity