维普中文期刊产品整合服务
16篇 您的检索式:作者名="Chonghao"
    题名 作者 年代 出处 被引量
1Trace Element Compositions of Pyrite from the Shuangwang Gold Breccias,Western Qinling Orogen,China:Implications for Deep Ore Prediction显示文摘The Shuangwang gold deposit, located in the Fengxian-Taibai fore-arc basin in the western Qinling Orogen of Central China, has yielded over 70 tons of gold. It is an orogenic gold deposit occurring in an NW-trending breccia belt. Most of the ores are hydrothermal breccia type containing fragments of adjacent strata cemented by ankerite and pyrite. Pyrite is the most abundant metallic mineral and the major gold-bearing mineral in the ores. A total of 58 pyrite samples from main ore bodies of the Shuangwang gold deposit have been analysed for 44 trace elements by HR-ICP-MS. Sb, Ba, Cu, Pb, Zn, Bi, Mo, Co are selected as indicator elements to investigate the potential usefulness of trace elements in pyrite as an indicator in gold exploration. The results show that the supra-ore halo elements Sb and Ba, which may have been more active than other near-ore halo elements and sub-ore halo elements, are best to characterize the shape of ore bodies. Five target areas are pointed out for deep ore exploration based on a comprehensive study of supra-ore, near-ore and sub-ore halos. This study provides evidence that trace elements in pyrite can be used to depict the deep extension of ore bodies and to vector towards undiscovered ore bodies.Jianping Wang Zhenjiang Liu Jiajun Liu Xiangtao Zeng Kexin Wang Bizheng Liu Huan Wang Chonghao Liu Fangfang Zhang 2018Journal of Earth Science2018,29,3:3
2Relation between seed size in different plant species and response of their seedlings to double CO_2显示文摘ATMOSPHERIC CO2 concentration is predicted to increase to 700μL/L by the middle of the 21st century. The impacts of raising CO2 on vegetation and ecosystem have been intensively studied. It is well known that C3 species and C4 species responded much differently to double CO2. Potential enhancement of photosynthesis efficiency induced by double CO2 in C3 plants was almost 66%, but in C4 plants only 4%. The response to double CO2 in C3 species mightDING Li, ZHANG Chonghao, BAI Kezhi and KUANG Tingyun1 Department of Biology, Beijing Normal University, Beijing 100875, China 2. Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 1997Chinese Science Bulletin1997,42,4:2
3显示文摘DING Li ZHANG Chonghao BAI Kezhi and KUANG Tingyun1 Department of Biology Beijing Normal University Beijing 100875 China 2. Institute of Botany Chinese Academy of Sciences Beijing 100093 China 1997Chinese Science Bulletin1997,,04:1
4Effects of extrusion conditions on the physicochemical properties of soy protein/gluten composite显示文摘Soybean protein-gluten blend was extruded using a co-rotating twin-screw extruder.Effects of different extrusion conditions on the textural properties of extrudates were analyzed by central composite design through the evaluation of texturization index,water holding capacity,and hardness of extruded protein products.Extrusion process variables including feed moisture content(40%-60%),screw speed(12-20 Hz),extrusion temperature(120℃-180℃),and gluten content(16%-32%)were studied by the nonlinear regression equations analysis.The extrusion process was also optimized using response surface methodology(RSM).The influence of moisture content on the hardness of extrudate was the most significant.The optimized results,including feed moisture content,extrusion temperature,screw speed and gluten content were 49.18%-50.15%,155.24℃-159.86℃,16.41-16.73 Hz,20.00%-20.03%,respectively.The microstructures of TISP products were analyzed by scanning electron microscopy(SEM)and the changes of protein molecules before and after extrusion were also analyzed by SDS-PAGE electrophoresis.Min Wu Yang Sun Chonghao Bi Fang Ji Borui Li Junjie Xing 2018International Journal of Agricultural and Biological Engineering2018,11,4:1
5Rheological properties and fractal-rheology analysis of peanut protein isolate suspension显示文摘This study focuses on the non-linear rheological property and microstructure of peanut protein isolate(PPI)aggregation suspension.The impact of higher harmonics(I3 and I5)on fundamental stress wave during large amplitude oscillatory shear test was studied.Rheological test show that storage modulus G′and loss modulus G″increased with increasing PPI concentration.The non-linear viscoelastic properties of PPI suspension with different concentration were investigated.Using confocal laser-scanning microscopy method,this research explored the microstructure of PPI suspension as well as the fractal dimensions.The new critical strain indirect method combined with Wu-Morbidelli model to calculate the fractal dimension(2.9225)is very close to the actual fractal dimension(2.9206).Fourier Transform Rheology was adopted to get the new critical strain for fractal dimension calculation,which was proved to be feasible.Chonghao Bi Shangyi Chi Zhe Hua Dong Li Zhigang Huang Yi Liu 2020International Journal of Agricultural and Biological Engineering2020,13,6:1
6Research of Decision System Analysis for Decision SupportLIU Shaojun HAN Chonghao and WAN Baiwu(Institute of Systems Engineering, Xi’an Jiaotong University.Xi’an,P. R.China 710049) 1994Systems Science and Systems Engineering1994,4,4:1
7Unsupervised multi-modal image translation based on the squeeze-and-excitation mechanism and feature attention module显示文摘The unsupervised multi-modal image translation is an emerging domain of computer vision whose goal is to transform an image from the source domain into many diverse styles in the target domain.However,the multi-generator mechanism is employed among the advanced approaches available to model different domain mappings,which results in inefficient training of neural networks and pattern collapse,leading to inefficient generation of image diversity.To address this issue,this paper introduces a multi-modal unsupervised image translation framework that uses a generator to perform multi-modal image translation.Specifically,firstly,the domain code is introduced in this paper to explicitly control the different generation tasks.Secondly,this paper brings in the squeeze-and-excitation(SE)mechanism and feature attention(FA)module.Finally,the model integrates multiple optimization objectives to ensure efficient multi-modal translation.This paper performs qualitative and quantitative experiments on multiple non-paired benchmark image translation datasets while demonstrating the benefits of the proposed method over existing technologies.Overall,experimental results have shown that the proposed method is versatile and scalable.胡振涛 HU Chonghao YANG Haoran SHUAI Weiwei 2024High Technology Letters2024,30,1:0
8High-fidelity transfer of area-selective atomic layer deposition grown HfO_(2)through DNA origami-assisted nanolithography显示文摘DNA origami-assisted nanolithography(DOANL)for fabricating custom-designed nanomaterials through pattern transfer from DNA origami to different substrates materials are presented.However,the pattern's integrity and resolution face considerable challenges due to the uncontrollable growth of the nanomaterials during transformation and the unclear mechanism of DOANL.Herein,we report a DOANL combined with area-selective atomic layer deposition(ALD)strategy for fabricating custom shapes hafnium oxide(HfO2)with the high-fidelity and high-throughput.We find that the HfO_(2)selectively grows on DNA origami substrates in a hydroxyl-rich area instead of a methyl-rich protective layer.Combined with the merit of the area-selective ALD method,theHfO_(2)atom selectively coated on the DNA origami surface,thus,precisely modeling the shapes with high-precision in our study based on the surface groups difference of DNA origami and the naked hexamethyldisilane(HMDS)-treated substrates,which reveal the mechanical of high-fidelity pattern transfer based on DOANL.As a result,DNA origami structures can program the shape ofHfO_(2)nanostructures.The DOANL that is based on the principle of'bottom-up'precision assembly breaks through the shape complexity and high-throughput fabrication limitation of theHfO_(2)nanostructures,including two-and three-dimensional structures,plane and curved structures,monolithic and hollow structures.Based on the'top-down'accurate fabrication principle,the area-selective ALD on methyl-rich protective layer substrates improves the integrity and resolution of the pattern transfer process.Overall,this work provides a general technology for nanofabrication strategy.Xiaowan Yuan Daiqin Xiao Wei Yao Zhihao Zhang Lin Yang Liyuan Zhang Yibo Zeng Jiaqi Liao Shanxiong Luo Chonghao Li Hong Chen Xiangmeng Qu 2022Nano Research2022,15,6:0
9Protein aggregation in association with delayed neuronal death in rat model of brain ischemia显示文摘To investigate the relationship between protein aggregation and delayed neuronal death,we adopted rat models of 20 min ischemia.Brain ischemia was produced using the 2-vessel occlusion(2VO)model in rats Light microscopy,transmission electronic microscopy and Western blot analysis were performed for morphological analysis of neurons,and protein detection.The results showed delayed neuronal death took place at 72 h after ischemia-reperfusion,protein aggregates formed at 4 h after reperfusion and reached the peak at 24 h after reper-fusion,and Western blot analysis was consistent with transmission electronic microscopy.We conclude that protein aggregation is one of the important factors leading to delayed neuronal death.Pengfei GE Tianfei LUO Shuanglin FU Wenchen LI Chonghao WANG Chuibing ZHOU Yinan LUO 2008Frontiers of Medicine2008,2,1:0
10Effects of salt ions on rheological properties of SPI-GG hybrid system显示文摘The rheological characteristic of soy protein isolate(SPI),is one of the most important properties in its application in food industry.The effects of different concentrations of guar gum(GG,polysaccharide)and sodium chloride(salt ion)on the rheological properties of SPI were studied in this research.Steady-state shear,strain sweep and frequency sweep tests(static and dynamic rheological tests)were performed,and the following phenomenon and conclusions were drawn:(1)The viscosity of the hybrid system increases with the GG addition.This trend could also be seen with the appropriate adding of salt ion;(2)As the applied frequency increases,the storage modulus G′and the loss modulus G″of the hybrid system increase at a similar rate.And the frequency sweep parameters of the hybrid system rise significantly with the increase of both GG and ionic concentration;The frequency dependence of the system varies significantly with the addition of salt ion;(3)With the concentration of the salt ion increase,the storage module G′of the hybrid system decrease indicating that salt ion destroyed the network structure of hybrid dispersion to a certain extent.Bi Chonghao Zhang Yulai Wu Min Ni Zijian Li Gang Liu Yi Li Dong Liu Yude Huang Zhigang 2017International Journal of Agricultural and Biological Engineering2017,10,5:0
11Construction of all-organic low dielectric polyimide hybrids via synergistic effect between covalent organic framework and cross-linking structure显示文摘Polyimide(PI)is a promising electronic packaging material,but it remains challenging to obtain an all-organic PI hybrid film with decreased dielectric constant and loss without modifying the monomer.Herein,a series of allorganic PI hybrid films were successfully prepared by introducing the covalent organic framework(COF),which could induce the formation of the cross-linking structure in the PI matrix.Due to the synergistic effects of the COF fillers and the cross-linking structure,the PI/COF hybrid film containing 2 wt%COF exhibited the lowest dielectric constant of 2.72 and the lowest dielectric loss(tanδ)of 0.0077 at 1 MHz.It is attributed to the intrinsic low dielectric constant of COF and a large number of mesopores within the PI.Besides,the cross-linking network of PI prevents the molecular chains from stacking and improves the fraction of free volume(FFV).The molecular dynamics simulation results are well consistent with the dielectric properties data.Furthermore,the PI/COF hybrid film with 5 wt%COF showed a significant enhancement in breakdown strength,which increased to 412.8 kV/mm as compared with pure PI.In addition,the PI/COF hybrid film achieve to reduce the dielectric constant and thermal expansion coefficient(CTE).It also exhibited excellent thermal,hydrophobicity,and mechanical performance.The all-organic PI/COF hybrid films have great commercial potential as next-generation electronic packaging materials.Wanjing Zhao Zhaoyang Wei Chonghao Lu Yizhang Tong Jingshu Huang Xianwu Cao Dean Shi Robert KYLi Wei Wu 2023Nano Materials Science2023,5,4:0
12Effects of xanthan gum on the rheological properties of soy protein dispersion显示文摘This study focused on the effects of addition of xanthan gum(XG)on the rheological properties of soy protein isolate(SPI)solution.Three types of tests(steady shear test,strain sweep test,and frequency sweep test)were performed to figure out the influences of shear rate on the viscosity of the SPI-XG hybrid system,the effects of strain variable on the storage modulus of the hybrid system,and the effects of frequency on both the storage modulus and the loss modulus of the hybrid system,respectively.SPI-XG hybrid system showed more obvious shear-thinning properties compared to pure SPI and pure XG solution.Meanwhile,it was found that the critical point of hybrid system was highly related to the XG concentration.XG can postpone the critical point strain amplitude to a higher value,and the addition of XG can enhance the strain resistance of hybrid system.The concentration of XG influenced the viscoelastic frequency dependence of the hybrid system significantly and complicatedly.After the addition of XG,the correlation between G′and frequency changed from negative to positive.Chonghao Bi Fei Gao Yingdan Zhu Fang Ji Yulai Zhang Dong Li Zhigang Huang 2018International Journal of Agricultural and Biological Engineering2018,11,2:0
13Time-averaged sub-layer concentration profiles in oscillatory sheet flows显示文摘Although thin on the order of several to tens of millimeters, sheet flows normally comprise a lower pickup sub-layer and an upper contact-load sub-layer, separated at the bed level(z = 0). The time-averaged concentration profile in the pick-up sub-layer shows a 'convex upward' curvature, but 'concave upward'shape characterizes the time-averaged concentration profile in the contact-load sub-layer. The timedependent concentration in the contact-load sub-layer is approximately in-phase with the free stream flow velocity, whereas it is nearly in anti-phase with the free stream flow velocity, in the pick-up sublayer. Two distinct analytical expressions of the time-averaged concentration profiles for the respective sub-layers are proposed. The expressions are validated with detailed observation datasets collected in the Groper Wellenkanal(GWK) prototype wave flume in Hannover, Germany. The agreement between the predicted and the measured values is excellent. Interparticle collisions in the pick-up sub-layer and convective lifting processes associated with vortex shedding in the contact-load sub-layer are considered responsible for the opposite curvatures and in-phase/anti-phase concentration variations. Both transitional boundary and reference concentration are also elaborated.Yuhai Wang Wenhong Cao Wen Lu Huifeng Liu Gauhu Sun Chonghao Wang Fei Liu 2018International Journal of Sediment Research2018,33,4:0
14Chip-based quantum communications显示文摘Quantum communications aim to share encryption keys between the transmitters and receivers governed by the laws of quantum mechanics.Integrated quantum photonics offers significant advantages of dense integration,high stability and scalability,which enables a vital platform for the implementation of quantum information processing and quantum communications.This article reviews recent experimental progress and advances in the development of integrated quantum photonic devices and systems for quantum communications and quantum networks.Qingqing Wang Yun Zheng Chonghao Zhai Xudong Li Qihuang Gong Jianwei Wang 2021Journal of Semiconductors2021,42,9:0
15Rheological properties of peanut protein isolate aggregation suspension and acid-induced gel显示文摘The dynamic rheological properties of peanut protein isolate(PPI)suspension and acid-induced PPI gels were studied.In frequency sweep test,the storage modulus(G′)and the loss modulus(G″)of PPI aggregation suspensions at different concentrations increased with the increase of frequency.The steady state shear flow test showed that PPI aggregation suspension had a thinning behavior of the shear,and the image of steady shear curve fitted the Carreau model.After gel formation,acid-induced PPI gels showed a typical Type I behavior(strain thinning)in strain sweep test,meaning that PPI gel got easily broken down,and there was a very small opportunity for the protein molecules to re-establish the network.Compared with the strain sweep of PPI aggregation suspensions and gels,the range of the storage modulus existed a dramatic difference,which could get about tenfold.As the frequency increased,both elasticity and viscosity increased in frequency sweep test,which indicated that the frequency dependence of the storage modulus increased with the increase of concentration.Zhigang Huang Xueying Wang Shangyi Chi Zhe Hua Chonghao Bi 2021International Journal of Agricultural and Biological Engineering2021,14,3:0
16Stress sensitivity of coal reservoir and its impact on coalbed methane production in the southern Qinshui Basin, north China显示文摘Stress sensitivity has significant negative effects on the permeability and production of coalbed methane(CBM)reservoirs.To effectively minimize these negative effects,the degree of stress sensitivity during the CBM production process should be carefully studied.In this work,the curvature of the stress-sensitivity curve was adopted to explore the degree of stress sensitivity,dividing the stress-sensitivity curve and the drainage process into five stress stages:sharp decrease,rapid decrease,low-speed decrease,slower decrease and harmless with four critical stress points—transition,sensitivity,relief and harmless.The actual stages were determined by the initial permeability,stress-sensitivity coefficient and difference between the reservoir pressure and desorption pressure.The four critical stress points did not completely exist in the stress-sensitivity curve.With an increase in the initial permeability of coal,the number of existing critical stresses increases,leading to different gas-water drainage strategies for CBM wells.For reservoirs with a certain stress-sensitivity coefficient,the permeability at the sensitive stress point was successively greater than that at the transition,relief and the harmless stresses.When the stress-sensitivity coefficient is different,the stage is different at the beginning of drainage,and with an increase in the stress-sensitivity coefficient,the decrease rate of the permeability increases.Therefore,the stress-sensitivity coefficient determines the ability to maintain stable CBM production.For well-fractured CBM reservoirs,with a high stress-sensitivity coefficient,permeability damage mainly occurs when the reservoir pressure is less than the relief stress;therefore,the depressurization rate should be slow.For CBM reservoirs with fewer natural fractures,the reverse applies,and the depressurization rate can be much faster.The higher the difference between the reservoir and desorption pressures,the higher the effective stress and permeability damage after desorption,resulting in a much longer drainage time and many difficulties for the desorption of coalbed methane.The findings of this study can help better understand and minimize the negative effects of stress sensitivity during the CBM production process.Huimin JIA Yidong CAI Qiujia HU Cong ZHANG Feng QIU Bin FAN Chonghao MAO 2023Frontiers of Earth Science2023,17,1:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费