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| 1 | Revised Chronostratigraphic Framework of the Metamorphic Strata in the Jiangnan Orogenic Belt,South China and its Tectonic Implications显示文摘In a re-study of regional geology by the China Geological Survey(CGS),the key problem is in the stratigraphical division and correlation.According to the new isotopic dating of the Meso-and Neoproterozoic in China,there have been great changes in the strata correlation and tectonic explanation.The authors obtained four zircon sensitive high resolution ion micro-probe(SHRIMP) U-Pb datings from the bentonite of the Lengjiaxi Group(822±10 Ma,823±12 Ma and 834±11 Ma) and Banxi Group(802.6±7.6 Ma) in north Hunan Province,which is considered to be the middle part of the Jiangnan Orogenic Belt.On the basis of the zircon dating mentioned above,the end of the Wuling orogen is first limited in the period from 822 Ma to 802 Ma in one continued outcrop(Lucheng section) in Linxiang city,Hunan Province.Combining a series of new zircon U-Pb datings in the Yangtze and Cathaysia blocks,several Neoproterozoic volcanic events and distribution of the metamorphic rocks in the Jiangnan Orogenic Belt have been distinguished.In the context of the global geodynamics,it is useful to set up a practical and high precision chronological framework and basic and unified late Precambrian section in South China. | GAO Linzhi DING Xiaozhong ZHANG Chuanheng CHENJun LIU Yaorong ZHANG Hang LIU Xanxue PANG Weihua | 2012 | Acta Geologica Sinica(English Edition)2012，86，2： | 14 |
| 2 | Formation mechanism of ferromagnetic minerals in loess of China:TEM investigation显示文摘The results of TEM investigation indicate that magnetite and maghemite are the major ferromagnetic minerals in loess-paleosol sequences. Primary magnetite has the similar morphology and surface characteristics as eolian detrital particles. The magnetite can be classified into two categories, high-titanium and low-titanium, which may be the indicators of magmatic rocks and metamorphic rocks, respectively. TEM investigation at nanometer scale shows that primary detrital magnetite of micron scale had been partially weathered to maghemite of 5~20 nanometer during the pedogenic process, which maintain the pseudomorphism of the aeolian debris. Some chlorite particles were also weathered to nanometer scale magnetite or maghemite in the pedogenic process. So weathering of the two minerals leads to formation of superparamagnetism, which may be the important mechanism of magnetic-susceptibility increase in paleosols. The magnetite or maghemite resulting from the weathering of chlorite contains a small amount of P and S, which is the signal of microbe-mineral interaction, and indicates that microbes may play a certain role in chlorite weathering and formation of superparamagnetic particles. | CHENTianhu XUHuifang JIJunfeng CHENJun CHENYang | 2003 | Chinese Science Bulletin2003，48，20： | 11 |
| 3 | Economic optimization for configuration and sizing of micro integrated energy systems显示文摘Based on analysis of construction and operation of micro integrated energy systems(MIES), this paper presents economic optimization for their configuration and sizing. After presenting typical models for MIES, a residential community MIES is developed by analyzing residential direct energy consumption within a general design procedure. Integrating with available current technologies and local resources, the systematic design considers a prime mover, fed by natural gas, with wind power, photovoltaic generation, and two storage devices serving thermal energy and power to satisfy cooling, heating and electricity demands. Control strategies for MIES also arepresented in this study. Multi-objective formulas are obtained by analyzing annual cost and dumped renewable energy to achieve optimal coordination of energy supply and demand. According to historical load data and the probability distribution of distributed generation output,clustering methods based on K-means and discretization methods are employed to obtain typical scenarios representative of uncertainties. The modified non-dominated sorting genetic algorithm is applied to find the Pareto frontier of the constructed multi-objective formulas. In addition, aiming to explore the Pareto frontier, the dumped energy cost ratio is defined to check the energy balance in different MIES designs and provide decision support for the investors. Finally, simulations and comparision show the appropriateness of the developed model and the applicability of the adopted optimization algorithm. | Haibo YU Chao ZHANG Zuqiang DENG Haifeng BIAN Chenjun SUN Chen JIA | 2018 | Journal of Modern Power Systems and Clean Energy2018，6，2： | 10 |
| 4 | Inducible expression pattern of rice Bowman-Birk inhibitorgene OsWIP1-2 and its protease inhibitory activity显示文摘The WIP1-2 gene was cloned from rice. It be-longs to the Bowman-Birk inhibitor gene family. Northern blot showed that expression of this gene was induced by wounding and jasmonic acid (JA). It indicates that the OsWIP1 gene plays an important role in the rice defense sys-tem. The OsWIP1-2 was cloned into pET28a and expressed in E. coli. Its expressed product was purified in the form of fusion protein and tested for the inhibitory activities against trypsin and chymotrypsin. It was found that the fusion pro-tein could inhibit chymotrypsin, but not trypsin. It was also found that the His tag at its C-terminal affected its inhibitory activity significantly. The fusion protein with a natural C-terminal had the inhibitory activity, while no inhibitory activity was detected in the fusion protein with a (His)6-tag at its C-terminal. This implies that extra amino acid residues at the C-terminal of OsWIP1-2 may interfere with its correct folding. The inhibitory assay indicated that the members of rice Bowman-Birk inhibitor gene family probably differenti-ated both in their structure and function. | CHENJun LIUJing GUOLei QULijia CHENZhangliang GUHongya | 2004 | Chinese Science Bulletin2004，49，9： | 7 |
| 5 | A significant carbon sink in temperate forests in Beijing: based on 20-year field measurements in three stands显示文摘Numerous efforts have been made to characterize forest carbon(C) cycles and stocks in various ecosystems. However, long-term observation on each component of the forest C cycle is still lacking. We measured C stocks and fluxes in three permanent temperate forest plots(birch, oak and pine forest) during 2011–2014, and calculated the changes of the components of the C cycle related to the measurements during 1992–1994 at Mt. Dongling, Beijing, China. Forest net primary production in birch, oak, and pine plots was 5.32, 4.53, and 6.73 Mg C ha?1 a?1, respectively. Corresponding net ecosystem production was 0.12, 0.43, and 3.53 Mg C ha?1 a?1. The C stocks and fluxes in 2011–2014 were significantly larger than those in 1992–1994 in which the biomass C densities in birch, oak, and pine plots increased from 50.0, 37.7, and 54.0 Mg C ha–1 in 1994 to 101.5, 77.3, and 110.9 Mg C ha?1 in 2014; soil organic C densities increased from 207.0, 239.1, and 231.7 Mg C ha?1 to 214.8, 241.7, and 238.4 Mg C ha?1; and soil heterotrophic respiration increased from 2.78, 3.49, and 1.81 Mg C ha?1 a?1 to 5.20, 4.10, and 3.20 Mg C ha?1 a?1. These results suggest that the mountainous temperate forest ecosystems in Beijing have served as a carbon sink in the last two decades. These observations of C stocks and fluxes provided field-based data for a long-term study of C cycling in temperate forest ecosystems. | ZHU JianXiao HU XueYang YAO Hui LIU GuoHua JI ChenJun FANG JingYun | 2015 | Science China(Life Sciences)2015，58，11： | 6 |
| 6 | Biological removal of antiandrogenic activity in gray wastewater and coking wastewater by membrane reactor process显示文摘A recombinant human androgen receptor yeast assay was applied to investigate the occurrence of antiandrogens as well as the mechanism for their removal during gray wastewater and coking wastewater treatment. The membrane reactor(MBR) system for gray wastewater treatment could remove 88.0% of antiandrogenic activity exerted by weakly polar extracts and 97.3% of that by moderately strong polar extracts, but only 32.5%of that contributed by strong polar extracts. Biodegradation by microorganisms in the MBR contributed to 95.9% of the total removal. After the treatment, the concentration of antiandrogenic activity in the effluent was still 1.05 μg flutamide equivalence(FEQ)/L, 36.2%of which was due to strong polar extracts. In the anaerobic reactor, anoxic reactor, and membrane reactor system for coking wastewater treatment, the antiandrogenic activity of raw coking wastewater was 78.6 mg FEQ/L, and the effluent of the treatment system had only 0.34 mg FEQ/L. The antiandrogenic activity mainly existed in the medium strong polar and strong polar extracts. Biodegradation by microorganisms contributed to at least 89.2%of the total antiandrogenic activity removal in the system. Biodegradation was the main removal mechanism of antiandrogenic activity in both the wastewater treatment systems. | Dehua Ma Lujun Chen Cong Liu Chenjun Bao Rui Liu | 2015 | Journal of Environmental Sciences2015，27，7： | 5 |
| 7 | New Insights into the Depositional Environments of Ordovician Carbonate Formations in the Yubei Area of Tarim Basin Based on Standard Microfacies Types显示文摘Objective The Yubei area is located in the mid-east Maigaiti slope of southwestern Tarim Basin,China,with an exploration history of several years.Recent exploration has preliminarily indicated that the Ordovician carbonate formations in this area have some oil and gas potential.Carbonate microfacies provides material basis for reservoir development,seal formation and | HUANG Chenjun LIU Geyun MA Yongsheng LIU Bo LIU Hongguang SHI Kaibo | 2017 | Acta Geologica Sinica(English Edition)2017，91，2： | 5 |
| 8 | Magma Mixing and Mingling for Xiangjiananshan Granitic batholith at eastern area of the East Kunlun Orogenic Belt显示文摘The East Kunlun Orogenic Belt(EKOB)in northeast margin of the Qinghai-Tibetan Plateau is an important part of the Central Orogenic System(COS).During the long-time geological evolution,complicated | CHEN Guochao PEI Xianzhi LI Ruibao LI Zuochen LIU Chenjun CHEN Youxin PEI Lei | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 5 |
| 9 | Pharmacological Activation of RXR-a Promotes Hematoma Absorption via a PPAR-y-dependent Pathway After Intracerebral Hemorrhage显示文摘Endogenously eliminating the hematoma is a favorable strategy in addressing intracerebral hemorrhage(ICH).This study sought to determine the role of retinoid X receptor-ot(RXR-a)in the context of hematoma absorption after ICH.Our results showed that pharmacologically activating RXR-a with bexarotene significantly accelerated hematoma clearance and alleviated neurological dysfunction after ICH.RXR-ot was expressed in microglia/macro-phages,neurons,and astrocytes.Mechanistically,bexarotene promoted the nuclear translocation of RXR-a and PPAR-y,as well as reducing neuroinflammation by modulating microglia/macrophage reprograming from the Ml into the M2 phenotype.Furthermore,all the beneficial effects of RXR-a in ICH were reversed by the PPAR-y inhibitor GW9662.In conclusion,the pharmacological activation of RXR-a confers robust neuroprotection against ICH by accelerating hematoma clearance and repolarizing microglia/macrophages towards the M2 phenotype through PPAR-y-related mechanisms.Our data support the notion that RXR-ot might be a promising therapeutic target for ICH. | Chaoran Xu Huaijun Chen Shengjun Zhou Chenjun Sun Xiaolong Xia Yucong Peng Jianfeng Zhuang Xiongjie Fu Hanhai Zeng Hang Zhou Yang Cao Qian Yu Yin Li Libin Hu Guoyang Zhou Feng Yan Gao Chen Jianru Li | 2021 | Neuroscience Bulletin2021，37，10： | 4 |
| 10 | Can regional economy influence China's water use intensity?:based on refined LMDI method显示文摘China experienced a decline of water use intensity in the 11th Five Year Plan,but the water use intensity actually increased in 2009.To the best of our knowledge,the index decomposition analysis method was rarely used to analyze changes in water use,and no decomposition analysis has investigated the role of regional economy in the decline of water use intensity.In this paper,we use logarithmic mean Divisia index(LMDI)techniques to decompose the change of water use intensity in the period 2006-2010.We find that the change of industrial water use intensity is confirmed as the dominant contributor to the decline in the overall water use intensity;the regional structure effect and the industrial structure effect is positive to the decline of overall water use intensity;the decline of China's water use intensity is mainly attributed to the effect of developed eastern provinces;meanwhile,the effect of central and undeveloped western is also positive to the decline of overall water use intensity;at least one out of three effects is positive to the decline of water use intensity in the different provinces;the intensity effect is positive and the industrial structure effect is positive to the declines of China's water use intensity based on chaining approach except the period 2008-2009,individually;and the deviation of regional structure effect and industrial structure effect between with regional economy and without regional economy in LMDI is 0.9 and2.3 m^3/10~4 RMB,respectively. | Chenjun Zhang Hengquan Zhang | 2014 | Chinese Journal of Population,Resources and Environment2014，12，3： | 4 |
| 11 | 诱导型环氧化酶与脑缺血显示文摘环氧化酶( C O X) 是花生四烯酸代谢为前列腺素的催化酶,其诱导型 C O X2 在神经元死亡中起着重要作用,而选择性 C O X2 抑制剂又可阻止神经元死亡,因此 C O X 可能参与了脑缺血后脑损伤的发生、发展及预后,研究选择性 C O X2 抑制剂对脑缺血的防治提供了一个新的途径。 | 罗玉敏 ChenJun 秦震 | 1999 | 国外医学(脑血管疾病分册)1999，7，4： | 3 |
| 12 | DynamicMechanical and Chemorheology Analysis for the Blended Epoxy System with Polyurethane Modified Resin显示文摘As the important matrix material,epoxy resin has been widely used in the composites for various fields.On account of the poor toughness of epoxy resin limiting their suitability for advanced applications,considerable interests have been conducted to modify the epoxy resin to meet the engineering requirements.In this study,the bio-based polyurethane(PU)modified resin was adopted to modify the pure bisphenol-A epoxy by blending method with various proportions.Aiming to illuminate the curing behavior,mechanical and thermal properties,the blended epoxy systems were characterized by viscosity-time analysis,dynamic mechanical analysis(DMA)at different frequencies and temperatures,mechanical tensile test,thermogravimetric analysis(TGA)and Fourier transform infrared(FT-IR)spectroscopy.The results indicated that the introduction of PU modified epoxy was found to significantly inhibit the viscosity growth rates especially when the content of PU modified epoxy resin is higher than 60%.Notwithstanding the dynamic modulus and T_(g)reduced with the increment of PU modified epoxy,remarkable increment on the elongation at break was found and the flexibility was greatly promoted with the introduction of PU modified epoxy.The proportion of PU modified epoxy in the blends should be put balance considerations to obtain optimal mechanical properties.TGA results and FTIR spectrum demonstrated that the addition of PU modified epoxy did not change the thermal decomposition mechanism and chemical reaction mechanism,but the addition of PU modified epoxy inhibits the curing reaction of epoxy resin by measured and calculated the damping temperature domainT from 35.7℃ to 48.9℃. | Xue Xin Yu Rong Linping Su Zhengmei Qiu Chenjun Yang Ming Liang Ping Ji Guoqiang Zhong Zhanyong Yao | 2022 | Journal of Renewable Materials2022，10，4： | 2 |
| 13 | Hydrocarbon migration in fracture-cave systems of carbonate reservoirs under tectonic stresses:A modeling study显示文摘The Tahe oilfield,located in the southwest of the Akekule nosing structure,northern Tarim basin,was the most prolific oilfield targeting at the Ordovician carbonate reservoirs in China.The reservoir space was dominant with fracture-cave systems commonly induced by tectonics and karstification.Although hydrocarbon production had proceeded for two decades in the Tahe oilfiled,the control of oil and gas accumulations was still doubtful.In this work,the periodic fluid flow induced by cyclic tectonic stresses was proposed as the mechanism of hydrocarbon migration in the fracture-cave systems of carbonate reservoirs.The fracture networks formed conduits for fluid flow,and the fluid pressure in caves transmitted from stress field provided the driving force.The constitutive equations were established among stresses,fracture densities and flow velocities.Four quasi-3D geological models were constructed to simulate the flow velocities on the Ordovician surface of Akekule nosing structure in the critical tectonic stages.The simulated results supplied indicative information on oil and gas migration and accumulation in the tectonic stages.Combining with the oil and gas charge history,a conceptual model was built to reveal the multi-stage oil and gas charge and accumulation in the Ordovician of Akekule nosing structure. | Chenjun Huang Geyun Liu Yongsheng Ma Xingui Zhou Linyan Zhang Jinyin Yin Jinrui Guo | 2019 | Petroleum Research2019，4，4： | 2 |
| 14 | Effect of formulation variables on in vitro release of a water-soluble drug from chitosanesodium alginate matrix tablets显示文摘The objective of this study is to investigate the feasibility of using chitosanesodium alginate(CSeSA)based matrix tablets for extended-release of highly water-soluble drugs by changing formulation variables.Using trimetazidine hydrochloride(TH)as a water-soluble model drug,influence of dissolution medium,the amount of CSeSA,the CS:SA ratio,the type of SA,the type and amount of diluents,on in vitro drug release from CSeSA based matrix tablets were studied.Drug release kinetics and release mechanisms were elucidated.In vitro release experiments were conducted in simulated gastric fluid(SGF)followed by simulated intestinal fluid(SIF).Drug release rate decreased with the increase of CSeSA amount.CS:SA ratio had only slight effect on drug release and no influence of SA type on drug release was found.On the other hand,a large amount of water-soluble diluents could modify drug release profiles.It was found that drug release kinetics showed the best fit to Higuchi equation with Fickian diffusion as the main release mechanism.In conclusion,this study demonstrated that it is possible to design extended-release tablets of watersoluble drugs using CSeSA as the matrix by optimizing formulation components,and provide better understanding about drug release from CSeSA matrix tablets. | Liang Li Jinfeng Li Shanshan Si Linlin Wang Chenjun Shi Yujiao Sun Zhenglin Liang Shirui Mao | 2015 | Asian Journal of Pharmaceutical Sciences2015，10，4： | 2 |
| 15 | Physical and Chemical Properties of Sediments in Huainan Segment of Huaihe River显示文摘The chemical and physical properties of nitrogen and phosphorus as well as their concentrations in the over- lying water, pore-water and sediments in Huainan segment of the Huaihe river were analyzed. The chemical forms of phosphorus in sediments were differentiated by a sequential fraction method. The results revealed that the NH+4 -N content in pore-water of 6 surface sediments is obviously higher than that in overlying water, indicating that there is a dynamic tendency of releasing NH+4 -N from sediment into overlying water. Chemical compound of nitrogen differs among segments of the river, while phosphorus has no such difference. Calcium bound phosphate (Ca-P) and iron bound phosphate (Fe-P) accounts for 60 % of the total phosphorus, and occluded-P (O-P) accounts for less than 20 %. Our findings indicate that 1) industrial waste water and domestic sewage have contributed to the excessive nu- trient salts in Huaihe river, 2) decreased water flow during low water periods, and the interaction between sediments and overlying water disturbed by transport ships accelerate nutrient salt releasing into overlying water, which results in eutrophication of the river. | CHENGYong-hong XUJun WANGJuan TIANDong CHENJun GAOZhi-kang | 2005 | Journal of China University of Mining and Technology2005，15，1： | 2 |
| 16 | Terahertz Imaging and Spectroscopy in Cancer Diagnostics:A Technical Review显示文摘Terahertz(THz)waves are electromagnetic waves with frequency in the range from 0.1 to 10 THz.THz waves have great potential in the biomedical field,especially in cancer diagnosis,because they exhibit low ionization energy and can be used to discern most biomolecules based on their spectral fingerprints.In this paper,we review the recent progress in two applications of THz waves in cancer diagnosis:imaging and spectroscopy.THz imaging is expected to help researchers and doctors attain a direct intuitive understanding of a cancerous area.THz spectroscopy is an efficient tool for component analysis of tissue samples to identify cancer biomarkers.Additionally,the advantages and disadvantages of the developed technologies for cancer diagnosis are discussed.Furthermore,auxiliary techniques that have been used to enhance the spectral signal-to-noise ratio(SNR)are also reviewed. | Yan Peng Chenjun Shi Xu Wu Yiming Zhu Songlin Zhuang | 2020 | Biomedical Engineering Frontiers2020，1，1： | 2 |
| 17 | A Bayesian Discriminating Features Method for Face Detection显示文摘 | Liu Chenjun | 2003 | IEEE Transactions on Pattern Analysis and Machine Intelligence2003，25，6： | 1 |
| 18 | 显示文摘 | BAOWei-yi ZHUYong CHENJun etal(鲍伟义 朱永 陈俊 等) | | 光谱学与光谱分析0，，： | 1 |
| 19 | 显示文摘 | FANWen-hong CHENJun WANGQiong(范文宏 陈俊 王琼) | 2007 | 环境化学2007，26，2： | 1 |
| 20 | Observations and computations of narrow Kelvin ship wakes显示文摘Computations of far-field ship waves,based on linear potential flow theory and the Hogner approximation,are reported for monohull ships and catamarans.Specifically,far-field ship waves are computed for six monohull ships at four Froude numbers F≡V/√gL=0.58,0.68,0.86,1.58 and for six catamarans with nondimensional hull spacing s≡S/L=0.25 at two Froude numbers F s≡V/√gS=1 and 2.5.Here,g is the gravitational acceleration,V and L denote the ship speed and length,and S is the separation distance between the twin hulls of a catamaran.The computations show that,although the amplitudes of the waves created by a ship are strongly influenced by the shape of the ship hull,as well known,the ray angles where the largest waves are found are only weakly influenced by the hull shape and indeed are mostly a kinematic feature of the flow around a ship hull.An important practical consequence of this flow feature is that the apparent wake angle of general monohull ships or catamarans(with arbitrarily-shaped hulls)can be estimated,without computations,by means of simple analytical relations;these relations,obtained elsewhere via parametric computations,are given here.Moreover,the influence of the two parameters F s and s that largely determine the ray angles of the dominant waves created by a catamaran is illustrated via computations for three catamarans with hull spacings s=0.2,0.35,0.5 at four Froude numbers F s=1,1.5,2,2.5.These computations confirm that the largest waves created by wide and/or fast catamarans are found at ray angles that only depend on F s(i.e.that do not depend on the hull spacing s)in agreement with an elementary analysis of lateral interference between the dominant waves created by the bows(or sterns)of the twin hulls of a catamaran.The dominant-waves ray angles predicted by the theory of wave-interference effects for monohull ships and catamarans are also compared with the observations of narrow Kelvin ship wakes reported by Rabaud and Moisy,and found to be consistent with these observations. | Francis Noblesse Chenliang Zhang Jiayi He Yi Zhu Chenjun Yang Wei Li | 2016 | Journal of Ocean Engineering and Science2016，1，1： | 1 |
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