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| 1 | Dynamic Field Division of Hydrocarbon Migration,Accumulation and Hydrocarbon Enrichment Rules in Sedimentary Basins显示文摘Hydrocarbon distribution rules in the deep and shallow parts of sedimentary basins are considerably different, particularly in the following four aspects. First, the critical porosity for hydrocarbon migration is much lower in the deep parts of basins: at a depth of 7000 m, hydrocarbons can accumulate only in rocks with porosity less than 5%. However, in the shallow parts of basins (i.e., depths of around 1000 m), hydrocarbon can accumulate in rocks only when porosity is over 20%. Second, hydrocarbon reservoirs tend to exhibit negative pressures after hydrocarbon accumulation at depth, with a pressure coefficient less than 0.7. However, hydrocarbon reservoirs at shallow depths tend to exhibit high pressure after hydrocarbon accumulation. Third, deep reservoirs tend to exhibit characteristics of oil (-gas)-water inversion, indicating that the oil (gas) accumulated under the water. However, the oil (gas) tends to accumulate over water in shallow reservoirs. Fourth, continuous unconventional tight hydrocarbon reservoirs are distributed widely in deep reservoirs, where the buoyancy force is not the primary dynamic force and the caprock is not involved during the process of hydrocarbon accumulation. Conversely, the majority of hydrocarbons in shallow regions accumulate in traps with complex structures. The results of this study indicate that two dynamic boundary conditions are primarily responsible for the above phenomena: a lower limit to the buoyancy force and the lower limit of hydrocarbon accumulation overall, corresponding to about 10%-12% porosity and irreducible water saturation of 100%, respectively. These two dynamic boundary conditions were used to divide sedimentary basins into three different dynamic fields of hydrocarbon accumulation: the free fluid dynamic field, limit fluid dynamic field, and restrain fluid dynamic field. The free fluid dynamic field is located between the surface and the lower limit of the buoyancy force, such that hydrocarbons in this field migrate and accumulate under the influence of, for example, the buoyancy force, pressure, hydrodynamic force, and capillary force. The hydrocarbon reservoirs formed are characterized as 'four high,' indicating that they accumulate in high structures, are sealed in high locations, migrate into areas of high porosity, and are stored in reservoirs at high pressure. The basic features of distribution and accumulation in this case include hydrocarbon migration as a result of the buoyancy force and formation of a reservoir by a caprock. The limit fluid dynamic field is located between the lower limit of the buoyancy force and the lower limit of hydrocarbon accumulation overall; the hydrocarbon migrates and accumulates as a result of, for example, the molecular expansion force and the capillary force. The hydrocarbon reservoirs formed are characterized as 'four low,' indicating that hydrocarbons accumulate in low structures, migrate into areas of low porosity, and accumulate in reservoirs with low pressure, and that oil(-gas)-water inversion occurs at low locations. Continuous hydrocarbon accumulation over a large area is a basic feature of this field. The restrain fluid dynamic field is located under the bottom of hydrocarbon accumulation, such that the entire pore space is filled with water. Hydrocarbons migrate as a result of the molecular diffusion force only. This field lacks many of the basic conditions required for formation of hydrocarbon reservoirs: there is no effective porosity, movable fluid, or hydrocarbon accumulation, and potential for hydrocarbon exploration is low. Many conventional hydrocarbon resources have been discovered and exploited in the free fluid dynamic field of shallow reservoirs, where exploration potential was previously considered to be low. Continuous unconventional tight hydrocarbon resources have been discovered in the limit fluid dynamic field of deep reservoirs; the exploration potential of this setting is thought to be tremendous, indicating that future exploration should be focused primarily in this direction. | PANG Xiongqi LIU Keyu MA Zhongzhen JIANG Zhenxue XIANG Caifu HUO Zhipeng PANG Hong CHEN Junqing | 2012 | Acta Geologica Sinica(English Edition)2012，86，6： | 13 |
| 2 | Dynamic response analysis of a multiple-beam structure subjected to a moving load显示文摘In this study,the dynamic response of an elastically connected multi-beam structure subjected to a moving load with elastic boundary conditions is investigated.The boundary conditions and properties of each beam vary,and the difficulty of solving the motion equation is reduced by using a Fourier series plus three special transformations.By examining a high-speed railway(HSR)with mixed boundary conditions,the rationality for the newly proposed method is verified,the difference in simulated multiple-beam models with different beam numbers is explored,and the influence of material parameters and load speed on the dynamic response of multiple-beam structures is examined.Results suggest that the number of beams in the model should be as close to the actual beam number as possible.Models with an appropriate beam number can be used to describe in detail the dynamic response of the structure.Neglecting the track-structure can overestimate the resonant speed of a high-speed railway,simply-supported beam bridge.The effective interval of foundation stiffness(EIFS)can provide a reference for future engineering designs. | Zhang Yuntai Jiang Lizhong Zhou Wangbao Liu Shaohui Feng Yulin Liu Xiang Lai Zhipeng | 2022 | Earthquake Engineering and Engineering Vibration2022，21，3： | 2 |
| 3 | In-situ generation and global property profiling of metal nanoclusters by ultraviolet laser dissociation-mass spectrometry显示文摘Metal nanoclusters are promising nanomaterials with unique properties, but only a few ones with specific numbers of metal atoms can be obtained and studied up to now. In this study, we establish a new paradigm of in-situ generation and global study of metal nanoclusters with different sizes, constitutions, and charge states, including both accurate constitution characterization and global activity profiling. The complex mixtures of metal nanoclusters are produced by employing single-pulsed 193-nm laser dissociation of monolayer-protected cluster(MPC) precursors within a high-resolution mass spectrometry(HRMS). More than400 types of bare gold nanoclusters including novel multiply charged(2+ and 3+), S-/P-doped, and silver alloy ones can be efficiently generated and accurately characterized. A distinct size(1 to 142 atoms)-and charge(1+ to 3+)-hierarchy reactivity is clearly observed for the first time. This global cluster study might greatly promote the developments and applications of novel metal nanoclusters. | Zheyi Liu Zhaoxian Qin Chaonan Cui Zhixun Luo Bing Yang You Jiang Can Lai Zhipeng Wang Xiaolei Wang Xiang Fang Gao Li Fangjun Wang Chunlei Xiao Xueming Yang | 2022 | Science China Chemistry2022，65，6： | 2 |
| 4 | Inactivation of Cipc alters the expression of Per1 but not circadian rhythms in mice显示文摘Circadian clocks are comprised of self-sustained transcriptional/translational feedback loops, which regulate the rhythms of physiology and behavior in mammals. CLOCK-interacting protein, Circadian(CIPC), has been indicated as an additional negative-feedback regulator of the circadian clock in vitro, although its physiological roles in circadian clock are unknown. Here, we generated Cipc homozygous knockout(Cipc-/-) mice and assessed the resultant circadian phenotypes. Surprisingly, the m RNA expression profiles of core clock genes in the liver of Cipc-/- mice showed no significant differences from that in wild-type mice except for Per1. Cipc-/- mice displayed normal locomotor rhythm and entrained activity pattern in both 12:12 light-dark cycle and constant dark cycle. Furthermore, deletion of Cipc in lungs and adipose tissues did not influence their peripheral clock. The results from this work provided more conclusive data suggesting that CIPC is not critically required for basic clock function. | QU ZhiPeng WANG XiaoHan LIU DongChuan GAO Xiang XU Ying | 2015 | Science China(Life Sciences)2015，58，4： | 2 |
| 5 | Synthesis of Ti(C,N) ultrafine powders by carbothermal reduction of TiO 2 derived from sol–gel process显示文摘 | Junhui Xiang Zhipeng Xie Yong Huang Hanning Xiao | 2000 | Journal of the European Ceramic Society2000，，7： | 1 |
| 6 | 显示文摘 | Xiang Junhui Xie Zhipeng Huang Yong | 2000 | Jour- nal of the European Ceramic Society2000，20，： | 1 |
| 7 | Processing of Al2O3 Sheets by the Gel-Tape-Casting Process显示文摘 | Xiang Junhui Xie Zhipeng Huang Yong | 2002 | Ceramics International2002，，2： | 1 |
| 8 | Dynamic Field Division of Hydrocarbon Migration, Accumulation and Hydrocarbon Enrichment Rules in Sedimentary Basins显示文摘 | PANG Xiongqi LIU Keyu MA Zhongzhen JIANG Zhenxue XIANG Caifu HUO Zhipeng PANG Hong CHEN Junqing | 2013 | Acta Geologica Sinica ‐ English Edition2013，，： | 1 |
| 9 | Processing of Al2O3 sheets by the gel-tape-casting process显示文摘 | Junhui Xiang Zhipeng Xie Yong Huang | 2002 | ceramics International2002，28，： | 1 |
| 10 | Characterization of Elemental Species in PM2.5 Samples Collected in Four Cities of Northeast China显示文摘 | Bin Han Shaofei Kong Zhipeng Bai Gang Du Tong Bi Xiang Li Guoliang Shi Yandi Hu | 2010 | Water Air & Soil Pollution (-)2010，，1： | 1 |
| 11 | Viologen-Decorated TEMPO for Neutral Aqueous Organic Redox Flow Batteries显示文摘A novel electroactive organic molecule,viz.,1-(1-oxyl-2,2,6,6-tetramethylpiperidin-4-yl)-1′-(3-(trimethylammonio)propyl)-4,4′-bipyridinium trichloride((TPABPy)Cl3),is synthesized by decorating 2,2,6,6-tetramethylpiperidin-1-oxyl(TEMPO)with viologen,which is used as the positive electrolyte in neutral aqueous redox flow battery(ARFB).Extensive characterizations are performed to investigate the composition/structure and the electrochemical behavior,revealing the favorable effect of introducing the cationic viologen group on the electroactive TEMPO.Salient findings are as follows.First,the redox potential is elevated from+0.745V for TEMPO to+0.967V for decorated TEMPO,favoring its use as the positive electrolyte.Such an elevation originates from the electron-withdrawing effect of the viologen unit,as evidenced by the nuclear magnetic resonance and single crystal structure analysis.Second,linear sweep voltammetry reveals that the diffusion coefficient is 2:97×10^(−6) cm^(2) s^(−1),and the rate constant of the one-electron transfer process is 7:50×10^(−2) cm s^(−1).The two values are sufficiently high as to ensure low concentration and kinetics polarization losses during the battery operation.Third,the permeability through anion-exchange membrane is as low as 1:80×10^(−11) cm^(2) s^(−1).It is understandable as the positive-charged viologen unit prevents the molecule from permeating through the anion exchange membrane by the Donnan effect.Fourth,the ionic nature features a decent conductivity and thus eliminates the use of additional supporting electrolyte.Finally,a flow battery is operated with 1.50M(TPABPy)Cl3 as the positive electrolyte,which affords a high energy density of 19.0WhL-1 and a stable cycling performance with capacity retention of 99.98%per cycle. | Shuzhi Hu Liwen Wang Xianzhi Yuan Zhipeng Xiang Mingbao Huang Peng Luo Yufeng Liu Zhiyong Fu Zhenxing Liang | 2021 | Energy Material Advances2021，，1： | 1 |
| 12 | Synthesis of Ti(C,N) ultrafine powders by carbothermal reduction of TiO2 deriyed from sol-gel process显示文摘 | Xiang Junhui Xie Zhipeng Huang Yong | 2000 | Journal of the European Ceramic Society2000，20，7： | 1 |
| 13 | Processing of Al2 O3 sheets by the gel-tape-casting process显示文摘 | Xiang Junhui Xie Zhipeng Huang Yong | 2002 | Ceramics International2002，2，： | 1 |
| 14 | Amperometric glucose biosensor based on gold nanorods and chitosan comodified Au electrode显示文摘Au nanorods were prepared by a seeding growth approach and used in fabricating the nanorod-enhancing glucose biosensor.The high affinity of chitosan for Au nanorods associated with its amino groups resulted in the formation of a layer of Au nanorods on the surface of Au electrode.It served as an intermediator to retain high efficient and stable immobilization of the enzyme.The performance of biosensors was investigated by cyclic voltammetry (CV),in the presence of artificial redox mediator,ferrocenecarboxaldehyde.The biosensor had a fast response to glucose,and the response time was less than 10 s.The results indicated that the gold nanorods could enhance the current response to glucose.The detection limits of glucose can reach 10 mM,and the Michaelis-Menten constant K mapp is 13.62 mM. | LI Yingying WANG Xiaoxia DONG Xiang HE Zhipeng ZHANG Haiqian | 2010 | Rare Metals2010，29，3： | 1 |
| 15 | Study of gel-tape_casting process of ceramic materials显示文摘 | Yong Huang Zhipeng Xie | 2002 | Materials Science and Engineering A2002，323，： | 1 |
| 16 | Processing of Al2O3 sheets by the gel tape casting process 显示文摘 | Zhipeng Xie Yong Huang | 2002 | Ceramics Interial2002，28，： | 1 |
| 17 | Overlying water fluoride concentrations influence dissolved organic matter composition and migration from pore water in sediment via bacterial mechanisms显示文摘Fluoride(F^(-))is widespread in aquatic environments;however,it is not clear whether the fluctuation of F^(-)concentrations in overlying lake water affects the composition and migration of dissolved organic matter(DOM)from sediment.A case study was presented in Sand Lake,China,and an experiment was conducted to analyze the influence of different F^(-)concentrations in overlying water on DOM characteristics.Diffusion resulted in similarities in DOM components between overlying and pore waters,and bacterial activities and enzyme variation resulted in differences between them.Higher F^(-)concentrations in overlying water resulted in a higher pH of pore water,which favored the enrichment of protein-like substances.Higher F^(-)concentrations caused lower DOM concentrations and lower maximum fluorescence intensities(Fmax)of protein-like components in pore water.The F^(-)concentrations had significantly negative correlations with Shannon indexes(P<0.05).Thiobacillus influenced the migration of tyrosinelike substances by decreasing the pH of pore water.Trichococcus and Fusibacter altered the Fmax of protein-like,humic-like,and fulvic-like substances.The F^(-)concentrations affected the DOM composition and migration due to the response of functional bacterial communities,which were positively correlated with the relative abundance of Thiobacillus and negatively correlated with the relative abundances of Trichococcus and Fusibacter.The high F^(-)concentrations influenced the biosynthesis and degradation of protein-like substances by shifting the abundances of the relevant enzymes.The results of this study may provide ideas for investigating DOM cycling under the influence of F^(-),especially in lakes with fluctuations in F^(-)concentrations. | Xiang Zhu Zibo Wang Yidan Luo Yushen Ma Zhipeng Xu Longmian Wang Fuquan Peng Qingqing Pang Yiping Li Fei He Bin Xu | 2022 | Environmental Science and Ecotechnology2022，，2： | 0 |
| 18 | High Order Deep Neural Network for Solving High Frequency Partial Differential Equations显示文摘This paper proposes a high order deep neural network(HOrderDNN)for solving high frequency partial differential equations(PDEs),which incorporates the idea of“high order”from finite element methods(FEMs)into commonly-used deep neural networks(DNNs)to obtain greater approximation ability.The main idea of HOrderDNN is introducing a nonlinear transformation layer between the input layer and the first hidden layer to form a high order polynomial space with the degree not exceeding p,followed by a normal DNN.The order p can be guided by the regularity of solutions of PDEs.The performance of HOrderDNNis evaluated on high frequency function fitting problems and high frequency Poisson and Helmholtz equations.The results demonstrate that:HOrderDNNs(p>1)can efficiently capture the high frequency information in target functions;and when compared to physics-informed neural network(PINN),HOrderDNNs(p>1)converge faster and achieve much smaller relative errors with same number of trainable parameters.In particular,when solving the high frequency Helmholtz equation in Section 3.5,the relative error of PINN stays around 1 with its depth and width increase,while the relative error can be reduced to around 0.02 as p increases(see Table 5). | Zhipeng Chang Ke Li Xiufen Zou Xueshuang Xiang | 2022 | Communications in Computational Physics2022，31，2： | 0 |
| 19 | Multifunctional building elements for the construction of peptide drug conjugates显示文摘Engineering of smart building molecules is key basis in designing intelligent drug delivery systems.As an emerging sophisticated delivery system strategy,the powerful functions of peptide drug conjugates(PDCs)are attributed to a smart linker and multifunctional peptide domain.Peptides exhibit a wide range of functions and properties,including easy chemical synthesis and versatile modification,tunable biocompatibility,diversified self-assembled nanostructures,specific recognition/binding,and deep penetration of the cell membrane/extracellular matrix.In addition,various types of linkers enable PDCs to release drugs responsively according to the disease microen-vironment or treatment needs.Owing to these inherent advantages,PDCs have been widely explored for drug delivery.Herein,the latest developments in functional peptides and linkers commonly used to construct smart PDCs are reviewed.The purpose is to bring widespread attention to PDC design strategies and their contribution to fighting various diseases,as well as to provide guidance for research on intelligent PDC drug delivery systems. | Liu Xu Shan Xu Tangyong Xiang Heng Liu Linwei Chen Baoping Jiang Junhong Yao Hongliu Zhu Rongfeng Hu Zhipeng Chen | 2022 | Engineered Regeneration2022，3，1： | 0 |
| 20 | High Order Deep Domain Decomposition Method for Solving High Frequency Interface Problems显示文摘This paper proposes a high order deep domain decomposition method(HOrderDeepDDM)for solving high-frequency interface problems,which combines high order deep neural network(HOrderDNN)with domain decomposition method(DDM).The main idea of HOrderDeepDDM is to divide the computational domain into some sub-domains by DDM,and apply HOrderDNNs to solve the high-frequency problem on each sub-domain.Besides,we consider an adaptive learning rate annealing method to balance the errors inside the sub-domains,on the interface and the boundary during the optimization process.The performance of HOrderDeepDDM is evaluated on high-frequency elliptic and Helmholtz interface problems.The results indicate that:HOrderDeepDDM inherits the ability of DeepDDM to handle discontinuous interface problems and the power of HOrderDNN to approximate high-frequency problems.In detail,HOrderDeepDDMs(p>1)could capture the high-frequency information very well.When compared to the deep domain decomposition method(DeepDDM),HOrderDeepDDMs(p>1)converge faster and achieve much smaller relative errors with the same number of trainable parameters.For example,when solving the high-frequency interface elliptic problems in Section 3.3.1,the minimum relative errors obtained by HOrderDeepDDMs(p=9)are one order of magnitude smaller than that obtained by DeepDDMs when the number of the parameters keeps the same,as shown in Fig.4. | Zhipeng Chang Ke Li Xiufen Zou Xueshuang Xiang | 2023 | Advances in Applied Mathematics and Mechanics2023，15，6： | 0 |
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