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| 1 | THz spectra of parabens at low temperature显示文摘Terahertz transmission spectra of methylparaben,ethylparaben,propyl-p-hydroxybenzoate and butyl-p-hydroxybenzoate were measured by terahertz time-domain spectroscopy(THz-TDS)at 7.8 K.While it was dicult to observe the THz absorbance peaks of these esters at room temperature(294.3 K),they could be observed at 7.8 K.The THz absorbance peaks of these materials were at a higher frequency at 7.8 K than that at room temperature.Density functional theory(DFT) was used to simulate the vibrational spectrum of ethylparaben to study the origin of the THz absorbance peaks.This research provides reference data for the spectral properties of parabens and the identification of their molecular structures and vibration modes in the terahertz range. | ZHAO GuoZhong WANG He LIU LiMing WANG XiaoYan | 2012 | Science China(Information Sciences)2012,55,1: | 4 |
| 2 | Analytical perfprmance evaluation of association of active and passive tracks for airborn sensors显示文摘 | Wang Guozhong Mao Shiyi He You | 2003 | Signal Processing2003,83,: | 1 |
| 3 | Band gap narrowing of TiO_2 by compensated codoping for enhanced photocatalytic activity显示文摘In this study,we have performed first-principles screened exchanged hybrid density function theory with the HSE06 function calculations of the C-Mo,C-W,N-Nb and N-Ta codoped anatase TiO 2 systems to investigate the effect of codoping on the electronic structure of TiO 2.The calculated results demonstrate that(W(s)+C(s)) codoped TiO 2 narrows the band gap significantly,and have little influence on the position of conduction band edges,therefore,enhances the efficiency of the photocatalytic hydrogen generation from water and the photodegradation of organic pollutants.Moreover,the proper oxygen pressure and temperature are two key factors during synthesis which should be carefully under control so that the desired(W(s)+C(s)) codoped TiO 2 can be obtained. | Jindou Huang Shuhao Wen Jianyong Liu Guozhong He | 2012 | Journal of Natural Gas Chemistry2012,21,3: | 1 |
| 4 | EFFECT OF RARE EARTH ON CONDUCTANCE OF ALUMINUM WIRE显示文摘Effects of Rare Earth(Hereafter RE)on the conductance of high-purity and industrial-purity aluminum wires have been studied.RE increases the resistivity of the high-purity aluminum.No evidence has been found that RE will decrease the resistivity of industrial-pure aluminum under various RE content including 0.3%Ce.The individual role of RE and its combined effects with Fe and Si have been discussed too. | Gao Guozhong He Weiyong Chen Jizhi | 1992 | Transactions of Nonferrous Metals Society of China1992,2,1: | 1 |
| 5 | Effect of Location of Energy Barrier on the Product Alignment of Reaction A+BC显示文摘 | He Guozhong Lou Nanquan | 1996 | J Chem Phys1996,105,19: | 1 |
| 6 | Photochemistry of arylbalides : photodissociation dynamics 显示文摘 | Han Keli He Guozhong | 2007 | J Photochem Photobiol C: Pho- tochem Reviews2007,8,2: | 1 |
| 7 | Building Ultra-Stable and Low-Polarization Composite Zn Anode Interface via Hydrated Polyzwitterionic Electrolyte Construction显示文摘Aqueous zinc metal batteries are noted for their costeffectiveness,safety and environmental friendliness.However,the water-induced notorious issues such as continuous electrolyte decomposition and uneven Zn electrochemical deposition remarkably restrict the development of the long-life zinc metal batteries.In this study,zwitterionic sulfobetaine is introduced to copolymerize with acrylamide in zinc perchlorate(Zn(ClO;);)solution.The designed gel framework with hydrophilic and charged groups can firmly anchor water molecules and construct ion migration channels to accelerate ion transport.The in situ generated hybrid interface,which is composed of the organic functionalized outer layer and inorganic Clcontaining inner layer,can synergically lower the mass transfer overpotential,reduce water-related side reactions and lead to uniform Zn deposition.Such a novel electrolyte configuration enables Zn//Zn cells with an ultra-long cycling life of over 3000 h and a low polarization potential(~0.03 V)and Zn//Cu cells with high Coulombic efficiency of 99.18%for 1000 cycles.Full cells matched with MnO;cathodes delivered laudable cycling stability and impressive shelving ability.Besides,the flexible quasi-solid-state batteries which are equipped with the anti-vandalism ability(such as cutting,hammering and soaking)can successfully power the LED simultaneously.Such a safe,processable and durable hydrogel promises significant application potential for long-life flexible electronic devices. | Qiong He Guozhao Fang Zhi Chang Yifang Zhang Shuang Zhou Miao Zhou Simin Chai Yue Zhong Guozhong Cao Shuquan Liang Anqiang Pan | 2022 | Nano-Micro Letters2022,14,6: | 1 |
| 8 | Effect of location of energy barrier on the product alignment of reaction A+BC显示文摘 | Han Keli He Guozhong Lou Nanquan | 1996 | J Chem Phys1996,105,19: | 1 |
| 9 | Product rotational polarization in the photoinitiated bimolecular reaction A+BC→AB+C on attractive,mixed and repulsive surfaces显示文摘 | Wang Meishan Han Keli He Guozhong | 1998 | J Chem Phys1998,109,13: | 1 |
| 10 | Correlation quantum dynamics between an electron and D2+ molecule with at- tosecond resolution显示文摘 | HU Jie HAN Keli HE Guozhong | 2005 | Physical Review Letters2005,95,12: | 1 |
| 11 | Fecal microbiota transplantation is an effective rescue therapy for refractory inflammatory bowel disease显示文摘 | Bota Cui Pan Li Lijuan Xu Zhaoyuan Peng Youquan Zhao Huiquan Wang Zhi He Ting Zhang Guozhong Ji Kaichun Wu Daiming Fan Faming Zhang | 2015 | Inflammation and Cell Signaling2015,,: | 1 |
| 12 | Genetic diversity of RNA viruses infecting invertebrate pests of rice显示文摘Invertebrate species are a natural reservoir of viral genetic diversity,and invertebrate pests are widely distributed in crop fields.However,information on viruses infecting invertebrate pests of crops is limited.In this report,we describe the deep metatranscriptomic sequencing of 88 invertebrate samples covering all major invertebrate pests in rice fields.We identified 296 new RNA viruses and 13 known RNA viruses.These viruses clustered within 31 families,with many highly divergent viruses constituting potentially new families and genera.Of the identified viruses,13 RNA viruses clustered within the Fiersviridae family of bacteriophages,and 48 RNA viruses clustered within families and genera of mycoviruses.We detected known rice viruses in novel invertebrate hosts at high abundances.Furthermore,some novel RNA viruses have genome structures closely matching to known plant viruses and clustered within genera of several plant virus species.Fortyfive potential insect pathogenic RNA viruses were detected in invertebrate species.Our analysis revealed that host taxonomy plays a major role and geographical location plays an important role in structuring viral diversity.Cross-species transmission of RNA viruses was detected between invertebrate hosts.Newly identified viral genomes showed extensive variation for invertebrate viral families or genera.Together,the large-scale metatranscriptomic analysis greatly expands our understanding of RNA viruses in rice invertebrate species,the results provide valuable information for developing efficient strategies to manage insect pests and virus-mediated crop diseases. | Haoran Wang Shufen Chao Qing Yan Shu Zhang Guoqing Chen Chonghui Mao Yang Hu Fengquan Yu Shuo Wang Liang Lv Baojun Yang Jiachun He Songbai Zhang Liangsheng Zhang Peter Simmonds Guozhong Feng | 2024 | Science China(Life Sciences)2024,67,1: | 0 |
| 13 | Radiation-induced one-pot synthesis of grafted covalent organic frameworks显示文摘Post-synthetic functionalization of covalent organic frameworks(COFs)is an alternative way to enhance and broaden their properties and potential applications.However,the chemical functionalization of COFs is a great challenge because traditional procedures are often time-and energy-consuming,while the crystallinity of COFs can be damaged under harsh conditions.Here we report the in-situ introduction of functional graft chains onto the skeleton of COFs during the synthesis process through the combination of radiation-induced synthesis and graft polymerization techniques under ^(60)Co gamma-ray radiation.The synthesis and functionalization of COFs are simultaneously accomplished in a chemical system under ambient conditions yielding a large number of different functionalized COFs.The obtained carboxyl-functionalized COFs exhibit excellent radioactive uranium removal capabilities from aqueous solution with fast uptake dynamics,high adsorption capacity,and excellent selectivity over other competing metal ions. | Mingxing Zhang Mengjia Yuan Xiaofang Zhao Junchang Chen Linwei He Qianhong Gao Jiangtao Hu Guozhong Wu Zhifang Chai Shuao Wang | 2023 | Science China Chemistry2023,66,6: | 0 |
| 14 | Dynamics of excited m-dichlorobenzene显示文摘Dynamics of excited m-dichlorobenzene is investigated in real time by femtosecond pump-probe method, combined with time-of-flight mass spectrometric detection in a supersonic molecular beam. The yields of the parent ion and daughter ion C6H4Cl+ are examined as a func-tion of the delay between the 270 and 810 nm femtosecond laser pulses, respectively. The life-time of the first singlet excited state S1 of m-dichlorobenzene is measured. The origin of this daughter ion C6H4Cl+ is discussed. The ladder mechanism is proposed to form the fragment ion. In addition, our experimental results exhibit a rapid damped sinusoidal oscillation over interme-diate time delays, which is due to quantum beat effects. | YUAN Liwei WANG Yanqiu WANG Li BAI Jiling HE Guozhong | 2004 | Science China Chemistry2004,47,4: | 0 |
| 15 | Property variation of ionic liquid [Bmim][AuCl_4] immobilized on carboxylated polystyrene submicrospheres with a small surface area显示文摘In order to understand the effect of surface chemical groups on the immobilized species, Au-containing imidazolium-based ionic liquid (IL) [Bmim][AuCl4] was intentionally immobilized on polystyrene (PS) submicrospheres (d~300 nm) with a very small surface area (4-10 m2/g), which possess carboxyl-moiety (COONa or COOH) on the surface. The behavior of immobilized [Bmim][AuCl4 ] on the two types of submicrospheres was investigated by transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and powder X-ray diffraction (XRD). It was revealed that the melting points (Tm) of [Bmim][AuCl4 ] that had been immobilized on PS-COONa and PS-COOH submicrospheres were decreased by 2.7 and 4.1℃, respectively. The interaction mechanism between the IL and submicrosphere surface moieties was further analyzed by X-ray absorption fine structure (XAFS) analysis. The data indicated that the coordination environment of Au species changed markedly when [Bmim] [AuCl4] was immobilized on the surfaces of PS-COONa and PS-COOH submicrospheres, as illustrated by the decrease in white line peak intensity. The effect of surface COOH groups on Tm depression and the white line peak intensity of the XANES spectrum is more pronounced than that of COONa groups, most likely due to the possible hydrogen bond formation between the COOH group and [Bmim]+. | HE YaXing FU HaiYing LI Cheng JI Xiang GE XueWu ZOU Yang JIANG Zheng XU HongJie WU GuoZhong | 2013 | Chinese Science Bulletin2013,58,24: | 0 |