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| 1 | Tissue clearing of both hard and soft tissue organs with the PEGASOS method显示文摘织物空地技术由转织物在 3 尺寸(3-D ) 启用不透明的机关和纸巾的可视化透明。当前的组织空地方法被能与每个单个协议被清除的纸巾的有限类型限制,它不可避免地导致了存在在整个身体或身体部分成像以内盲点。包括骨头和牙齿的难纸巾仍然是要清除的最困难的机关。另外,内长的荧光的损失为基于溶剂的空地方法仍然是一颗主要担心。这里,我们发展了聚乙烯乙二醇(木钉) 联系了溶剂系统(PEGASOS ) ,它将近显示了纸巾的所有类型透明、保存的内长的荧光。骨头和牙齿能被转在变清以后将近不可见。PEGASOS 方法转了透明的整个成年老鼠身体,我们对一个成年老鼠头骨头,牙齿,大脑,肌肉,和其它填写了的图象有能力没有盲目区域的纸巾。难织物透明性使我们能重建在 3-D 的未经触动的上颚,牙齿,腿节,或膝关节。另外,我们在长距离上在亚 cellular 分辨率并且到踪迹个人神经原和轴突管理了未经触动的鼠标大脑到图象。我们也通过 vertebrae 直接设想了背面的根中心。最后,我们在长骨头的髓空间以内在 3-D 揭示了神经网络的分发模式。这些结果建议 PEGASOS 方法是为一般生物医学的研究的一个有用工具。 | Dian Jing Shiwen Zhang Wenjing Luo Xiaofei Gao Yi Men Chi Ma Xiaohua Liu Yating Yi Abhijit Bugde Bo O. Zhou Zhihe Zhao Quan Yuan Jian Q. Feng Liang Gao Woo-Ping Ge Hu Zhao | 2018 | Cell Research2018,28,8: | 18 |
| 2 | A robust optimization method for energy management of CCHP microgrid显示文摘Energy management is facing new challenges due to the increasing supply and demand uncertainties,which is caused by the integration of variable generation resources,inaccurate load forecasts and non-linear efficiency curves.To meet these challenges,a robust optimization method incorporating piecewise linear thermal and electrical efficiency curve is proposed to accommodate the uncertainties of cooling,thermal and electrical load,as well as photovoltaic(PV)output power.Case study results demonstrate that the robust optimization model performs better than the deterministic optimization model in terms of the expected operation cost.The fluctuation of net electrical load has greater effect on the dispatching results of the combined cooling,heating and power(CCHP)microgrid than the fluctuation of the cooling and thermal load.The day-ahead schedule is greatly affected by the uncertainty budget of the load demand.The economy of the optimal decision could be achieved by adjusting different uncertainty budget levels according to control the conservatism of the model. | Zhao LUO Wei GU Zhi WU Zhihe WANG Yiyuan TANG | 2018 | Journal of Modern Power Systems and Clean Energy2018,6,1: | 12 |
| 3 | Bone physiological microenvironment and healing mechanism:Basis for future bone-tissue engineering scaffolds显示文摘Bone-tissue defects affect millions of people worldwide.Despite being common treatment approaches,autologous and allogeneic bone grafting have not achieved the ideal therapeutic effect.This has prompted researchers to explore novel bone-regeneration methods.In recent decades,the development of bone tissue engineering(BTE)scaffolds has been leading the forefront of this field.As researchers have provided deep insights into bone physiology and the bone-healing mechanism,various biomimicking and bioinspired BTE scaffolds have been reported.Now it is necessary to review the progress of natural bone physiology and bone healing mechanism,which will provide more valuable enlightenments for researchers in this field.This work details the physiological microenvironment of the natural bone tissue,bone-healing process,and various biomolecules involved therein.Next,according to the bone physiological microenvironment and the delivery of bioactive factors based on the bone-healing mechanism,it elaborates the biomimetic design of a scaffold,highlighting the designing of BTE scaffolds according to bone biology and providing the rationale for designing next-generation BTE scaffolds that conform to natural bone healing and regeneration. | Guanyin Zhu Tianxu Zhang Miao Chen Ke Yao Xinqi Huang Bo Zhang Yazhen Li Jun Liu Yunbing Wang Zhihe Zhao | 2021 | Bioactive Materials2021,6,11: | 11 |
| 4 | DNA barcoding of 18 species of Bovidae显示文摘Genetic divergences of mitochondrial cytochrome c oxidase subunit I genes,known as DNA barcodes,have been used in species identification in the animal kingdom.Barcodes can assist field workers and taxonomists to determine groups in need of taxa analysis,and facilitate the recognition of appropriate populations and scales for conservation planning.In this study,18 species of Bovidae were selected to evaluate the effectiveness of DNA barcoding for species differentiation.The results showed that all but 2 species had unique DNA barcodes.The mean intraspecific variation was 0.63%,yielding a threshold of 6.3% for flagging putative species.The results supported the inference that barcode variation within species of mammals is somewhat higher than within other animal groups.The present study validated the effectiveness of barcoding for the identification of bovid species. | CAI YanSen ZHANG Liang SHEN FuJun ZHANG WenPing HOU Rong YUE BiSong LI Jing ZHANG ZhiHe | 2011 | Chinese Science Bulletin2011,56,2: | 10 |
| 5 | Analysis of the complex morphology of sediment particle surface based on electron microscope images显示文摘The morphology of sediment particles plays an important role in interfacial interactions.The difficulties in complex morphological description significantly limit the research on interfacial interactions.In this study,images of a single sediment particle extracted from electron microscope photos were used to analyze the gray values and present the probability of shape of the sediment particles.Moreover,the morphological features of the sediment particles were qualitatively described using the fractal method(surface area-volume method).The fractal dimension D of a single sediment particle was calculated to analyze the features and quantitative complexity of the sediment particle morphology.Results indicate that the probability of shape can provide intuitive morphological structure and fully describe the complex morphological characteristics of sediment particle surfaces.The fractal dimension abstractly described the complexity of the morphology of a sediment particle surface and matched well with the experimental results.The methods discussed in this study are suitable for describing the complex morphology of the sediment particle surface and lay the scientific foundation for further research on the interfacial interaction between the sediment particle and the pollutant. | CHEN ZhiHe FANG HongWei | 2013 | Science China(Technological Sciences)2013,56,2: | 9 |
| 6 | Characteristics of micro-interface adsorption kinetics between sediments and Cu ions显示文摘This work investigates the adsorption of Cu ions in sediments by conducting batch experiments,including isothermal experiments and adsorption kinetics experiments.Data from isothermal experiments were analyzed using the Langmuir,Freundlich and Temkin models,and the experimental kinetic data were fit using pseudo-first-order,pseudo-second-order,Elovich,liquid film diffusion and intra-particle diffusion models.The Langmuir model resulted in the best fit for the equilibrium data,which indicated that the adsorption capacity of Cu ions on the sediment was1.0403 mgg^(-1) with a K_L value of 4.2877 L mg^(-1) The Freundlich and Temkin models also provided good fits,and the n_F and A values were 3.8565 and 66.9964 L mg^(-1),respectively,indicating stronger adsorption intensities and adsorption energies between the Cu ions and the sediment.Compared with the pseudo-first-order and Elovich models,the pseudo-second-order model was more appropriate for describing the adsorption kinetics,indicating the chemisorption nature of adsorption.The adsorption kinetic process can be divided into film diffusion,pore diffusion and adsorption reactions.The controlling step for the adsorption kinetics changed with the development of the adsorption process.The entire adsorption process took 180 min.Film diffusion was the controlling step for the first 20 min.During the 20 to 60 min period,the pore diffusion gradually increased and the film diffusion decreased so that both phenomena coexisted.Pore diffusion was the controlling step during the 60-180 min period. | Zhihe Chen Bingchuan Zeng | 2017 | International Journal of Sediment Research2017,32,1: | 7 |
| 7 | Preparation and activity evaluation of NiMoB/-Al_2O_3 catalyst by liquid-phase furfural hydrogenation显示文摘Amorphous MoNiB/ -Al 2 O 3 alloy catalysts were prepared by reducing NiCl 2 ·6H 2 O and (NH 4 ) 6 Mo 7 O 24 ·4H 2 O supported on -Al 2 O 3 with NaBH 4 as reducing agent. Using liquid-phase hydro-genation of furfural (FFR) as a probe reaction, the activity of MoNiB/ -Al 2 O 3 was examined. Compared to NiB and NiMoB, NiMoB/ -Al 2 O 3 exhibited excellent activity and selectivity towards furfuryl alcohol (FFA). After reaction for 3.0 h at 80 ℃ and 5.0 MPa in methanol, FFR conversion reached 99% with FFA yield of 91%. The effects of doping amount of Mo and calcination temperature before NaBH 4 reduction on hydrogenation activity were also investigated. The optimum Mo/Ni atom ratio and calcination temperature were found to be 1:7 and 300 ℃, respectively. XRD patterns and SEM images indicated that NiMoB over the surface of -Al 2 O 3 was amorphous and highly dispersed, which was responsible for the high thermal stability of the title catalyst. | Shuqin Wei Hongyou Cui Jinghua Wang Shuping Zhuo Weiming Yi Lihong Wang Zhihe Li | 2011 | Particuology2011,9,1: | 7 |
| 8 | Surface pore tension and adsorption characteristics of polluted sediment显示文摘Most natural sediment particles have numerous pores and a complex surface texture which facilitates their adsorption of contaminants. Particle surface structure,therefore,is an important instrumental factor in the transport of contaminants,especially in water environments. This paper reports on the results of adsorption-desorption experiments to analyze polluted sediment surface pore tension characteristics performed on samples from the bottom of Guanting Reservoir. In our analysis,the Frenkel-Halsey-Hill(FHH) equation is applied to calculate the fractal dimensions of particles to quantify the surface roughness and pore tension characteristics. The results show that the surface fractal dimensions of sediment particle surfaces normally measure from 2.6 to 2.85. The volume of pores smaller than 10 nm changes significantly after being contaminated with pollutants and the fractal dimension decreases because the pores adsorb the contaminants. | FANG HongWei CHEN MingHong CHEN ZhiHe | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,8: | 6 |
| 9 | Selection of a DNA barcode for Nectriaceae from fungal whole-genomes显示文摘A DNA barcode is a short segment of sequence that is able to distinguish species. A barcode must ideally contain enough variation to distinguish every individual species and be easily obtained. Fungi of Nectriaceae are economically important and show high species diversity. To establish a standard DNA barcode for this group of fungi, the genomes of Neurospora crassa and 30 other filamentous fungi were compared. The expect value was treated as a criterion to recognize homologous sequences. Four candidate markers, Hsp90, AAC, CDC48, and EF3, were tested for their feasibility as barcodes in the identification of 34 well-established species belonging to 13 genera of Nectriaceae. Two hundred and fifteen sequences were analyzed. Intraand inter-specific variations and the success rate of PCR amplification and sequencing were considered as important criteria for estimation of the candidate markers. Ultimately, the partial EF3 gene met the requirements for a good DNA barcode: No overlap was found between the intra-and inter-specific pairwise distances. The smallest inter-specific distance of EF3 gene was 3.19%, while the largest intra-specific distance was 1.79%. In addition, there was a high success rate in PCR and sequencing for this gene (96.3%). CDC48 showed sufficiently high sequence variation among species, but the PCR and sequencing success rate was 84% using a single pair of primers. Although the Hsp90 and AAC genes had higher PCR and sequencing success rates (96.3% and 97.5%, respectively), overlapping occurred between the intraand inter-specific variations, which could lead to misidentification. Therefore, we propose the EF3 gene as a possible DNA barcode for the nectriaceous fungi. | ZENG ZhaoQing ZHAO Peng LUO Jing ZHUANG WenYing YU ZhiHe | 2012 | Science China(Life Sciences)2012,55,1: | 6 |
| 10 | Fracture Characteristics and Heat Accumulation of Jixianian Carbonate Reservoirs in the Rongcheng Geothermal Field, Xiong'an New Area显示文摘Geothermal energy plays an important role in urban construction of the Xiong’an New Area. Geothermal reservoir fracture distribution of the Mesoproterozoic Jixianian Wumishan Formation(Fm.) carbonate reservoir in the Rongcheng geothermal field are evaluated based on FMI log from Wells D19 and D21. The results show carbonate reservoir fracture density of Well D19 is 15.2/100 m, greater than that of Well D21 with a value of 9.2/100 m. Reservoir porosity and permeability of Well D19 are better than that of Well D21, and the water saturation is bimodally distributed. The movable fluid volume ratio(BVM) of Well D19 is 2% to 8% with some zones exceeding 20%, while the value of Well D21 is less than 4%. Therefore, reservoir fractures in Well D19 are more conducive to fluid flow. Reservoir fractures have a similar occurrence to normal faults, indicating that the tensile stress field controlled the formation of such fractures. Developed reservoir fractures provide a good channel for groundwater convection. The circulation of regional groundwater and the heat exchange between water and rock and the multiple heat accumulation patterns form a stable and high potential heat reservoir in the Rongcheng geothermal field. | WANG Yingjin MA Feng XIE Heping WANG Guiling WANG Zhihe | 2021 | Acta Geologica Sinica(English Edition)2021,95,6: | 5 |
| 11 | Microwave strengthens decomposition of mixed rare earth concentrate: Microwave absorption characteristics显示文摘The potential application of microwave heating technology for processing the mixed rare earth concentrate was systematically investigated by analyzing the microwave absorption characteristics in this study. The complex permittivity was measured through resonant cavity perturbation method. The variations of permittivity, the loss factor, loss tangent and the penetration depth with the increasing temperature were investigated numerically. The results indicate that the permittivity increases as the temperature increases, and temperature has a pivotal effect on it. The mixed concentrate is high loss material at the temperature range from 600 to 800℃ according to theoretical analyses of loss tangent and penetration depth. The results of phase transition analysis prove that the variation of microwave absorption characteristics of mixed concentrate is caused by the changes of crystal and lattice structures.The reflectivity, loss factor and penetration depth of the mixed concentrate were also calculated, and the results indicate that processing the mixed concentrate by microwave heating is of high feasibility and industrial potential. | Yukun Huang Ting'an Zhang Zhihe Dou Guozhi Lv Guihong Han Weijun Peng | 2019 | Journal of Rare Earths2019,37,5: | 5 |
| 12 | Comparison of Pb(Ⅱ) and Cd(Ⅱ) micro-interfacial adsorption on fine sediment in the Pearl River Basin, China显示文摘The complex micro-interfacial interaction theories of heavy metal ions such as Pb(Ⅱ)and Cd(Ⅱ)adsorption on fine sediment in aqueous solution were not systematically investigated.The aim of this work was to reflect the micro-interfacial adsorption characteristics.Sediment samples were collected from an estuary.The Isothermal and kinetics adsorption experiment were done to acquire the data.Isothermal,kinetics,film diffusion and intraparticle diffusion models were adopted to fit the adsorption experimental data.The results indicated that the Langmuir,Freundlich and Temkin models were suitable for analyzing the isothermal experimental data.The maximum adsorption capacities of Pb(Ⅱ)and Cd(Ⅱ)on the sediment were 1.1377 and 0.9821 mg·g-1,respectively.The qm and KL of the Langmuir model,Kf and nF of the Freundlich model,and b and A of the Temkin model all exhibited a power function relationship with the initial adsorbate concentration.The pseudo-second-order model provided a better fit for the experimental kinetics data compared with the fit of the pseudo-first-order and Elovich models.The pseudo-second-order parameters k2 and qe of Pb(Ⅱ)and qe of Cd(Ⅱ)both had a power function relationship with adsorption time,additionally,the k2 of Cd(Ⅱ)had an exponential function relationship with adsorption time.The liquid-film diffusion parameters kfd of Pb(Ⅱ)and Cd(Ⅱ)were 0.0569 and 0.1806 min1,respectively.The intraparticle diffusion parameter kid values of Pb(Ⅱ)and Cd(Ⅱ)were 0.0055 mg$g1$min1/2 and 0.0049 mg$g1$min1/2,respectively.The physical significance of the model parameters showed that Pb(Ⅱ)adsorption on sediment was stronger than Cd(Ⅱ).The results of this study provided a theoretical reference for the micro-interfacial mechanism of heavy metal ion adsorption on sediment. | Qunsheng Fang Zhihe Chen Jianpeng Zheng Zhihua Zhu | 2021 | International Journal of Sediment Research2021,36,3: | 5 |
| 13 | In-situ/operando techniques to identify active sites for thermochemical conversion of CO_(2) over heterogeneous catalysts显示文摘The catalytic conversion of CO_(2) to fuels or chemicals is considered to be an effective pathway to mitigate the greenhouse effect. To develop new types of efficient and durable catalysts, it is critical to identify the catalytic active sites, surface intermediates, and reaction mechanisms to reveal the relationship between the active sites and catalytic performance. However, the structure of a heterogeneous catalyst usually dynamically changes during reaction, bringing a great challenge for the identification of catalytic active sites and reaction pathways. Therefore, in-situ/operando techniques have been employed to real-time monitor the dynamic evolution of the structure of active sites under actual reaction conditions to precisely build the structure–function relationship. Here, we review the recent progress in the application of various in-situ/operando techniques in identifying active sites for catalytic conversion of CO_(2) over heterogeneous catalysts. We systematically summarize the applications of various optical and X-ray spectroscopy techniques, including Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and X-ray absorption spectroscopy (XAS), in identifying active sites and determining reaction mechanisms of the CO_(2) thermochemical conversion with hydrogen and light alkanes over heterogeneous catalysts. Finally, we discuss challenges and opportunities for the development of in-situ characterization in the future to further enlarge the capability of these powerful techniques. | Kai Feng Yaning Wang Man Guo Jingpeng Zhang Zhengwen Li Tianyu Deng Zhihe Zhang Binhang Yan | 2021 | Journal of Energy Chemistry2021,30,11: | 5 |
| 14 | How functional foods play critical roles in human health显示文摘How do functional foods affect human health?To answer this question it is important to understand what happens when food is digested and taken up by the gastrointestinal(GI)tract.The gut is a selective nutrient absorption system and the most important signal transduction and information exchange system within the body.It acts as a signal transducer,a neuroendocrine sensor,and an immunological recognition and presentation system.It is also a complex information exchange system comprising a number of signaling networks involving GI cells and cells immobilized in organs or transported in blood.The bioactivity of functional foods in vivo may be due to their effects on such networks,but this raises the question of what signaling pathways are used by non-nutrients that cannot be absorbed by the gut.The purpose of this review is to describe intestinal nutrient transportation,identify a number of widely expressed receptors and signal transduction pathways,and outline our current understanding of the mechanisms involved in health and disease.At the end of the review,a method for developing a cell communication network is described.This network is convenient for investigating the effects of oral administration of experimental medicines,drugs,or functional foods on cytokines of interest.Because cytokines and chemokines are transported via the circulatory system,a simple 2–3 mL blood sample from a volunteer is a rich source of information.This method may become the gold standard for evaluating the effects of functional foods or medicines in vivo.©2012 Production and hosting by Elsevier B.V.on behalf of Beijing Academy of Food Sciences. | Guangchang Pang Junbo Xie Qingsen Chen Zhihe Hu | 2012 | Food Science and Human Wellness2012,1,1: | 4 |
| 15 | Recommending Authors and Papers Based on ACTTM Community and Bilayer Citation Network显示文摘Citation network is often used for academic recommendation. However, it is difficult to achieve high recommendation accuracy and low time complexity because it is often very large and sparse and different citations have different purposes. What's more, some citations include unreasonable information, such as in case of intentional self-citation. To improve the accuracy of citation network-based academic recommendation and reduce the time complexity, we propose an academic recommendation method for recommending authors and papers. In which, an author-paper bilayer citation network is built, then an enhanced topic model, Author Community Topic Time Model(ACTTM) is proposed to detect high quality author communities in the author layer, and a set of attributes are proposed to comprehensively depict the author/paper nodes in the bilayer citation network. Experimental results prove that the proposed ACTTM can detect high quality author communities and facilitate low time complexity, and the proposed academic recommendation method can effectively improve the recommendation accuracy. | Meilian Lu Zhihe Qu Mengxing Wang Zhen Qin | 2018 | China Communications2018,15,7: | 4 |
| 16 | Preparation of CuCr alloys by thermit-reduction electromagnetic stirring显示文摘The influences of the additive CaF2, different molds, mold pre-heating temperature, electromagnetic stirring, and alloying elements on CuCr have been investigated respectively during the preparation of CuCr alloys by thermit-reduction electromagnetic stirring. The results indicate that the reasonable reactant mass ratio of CuO: Cr2O3: Al is 100:140:160; CaF2 can reduce the solidifica- tion point of slags to improve the metal separating efficiency from slags; the crystal particles become thinner because of the high cooling velocity in the metal mold; while casting in the graphite mold, the casting properties of CuCr improve with the increase of pre-heating temperature; the compact alloys are prepared at 500°C; electromagnetic stirring can prevent the growth of dendrite crys- tal into refine crystal particles, as well as homogenize Cu and Cr to improve the CuCr properties; the optimal stirring time is 7 min; when the alloying elements Ni and Co are added to the reactants, elements Cu and Cr can distribute evenly but the crystal particles become thick. | Zhihe Dou Tingan Zhang Haien Yu Liping Niu Xiaoli Jiang Huan Yang | 2007 | Journal of University of Science and Technology Beijing2007,14,6: | 4 |
| 17 | Wildlife conservation and management in China:achievements,challenges and perspectives显示文摘Dramatic global changes to the environment have wrought unprecedented reductions in biodiversity, with>28%species assessed by the International Union for Conservation of Nature(IUCN) under the threat of extinction[1]. China, as one of the world’s megadiverse countries, plays a critical role in global biodiversity conservation. | Guangping Huang Xiaoge Ping Weihua Xu Yibo Hu Jiang Chang Ronald R.Swaisgood Jiang Zhou Xiangjiang Zhan Zejun Zhang Yonggang Nie Jie Cui Michael Bruford Zhihe Zhang Baoguo Li Li Zhang Zhi Lv Fuwen Wei | 2021 | National Science Review2021,8,7: | 4 |
| 18 | Microsatellite variability reveals high genetic diversity and low genetic differentiation in a critical giant panda population显示文摘 | Jiandong YANG Zhihe ZHANG Fujun SHEN Xuyu YANG Liang ZHANG Limin CHEN Wenping ZHANG Qing ZHU Rong HOU | 2011 | Current Zoology2011,57,6: | 3 |
| 19 | PACKINGS OF THE COMPLETE DIRECTED GRAPH WITH m-CIRCUITS显示文摘§1IntroductionLetDKvdenotethecompletedirectedsymmetricgraphwithvvertices,whereanytwodistinctverticesxandyarejoinedbyexactlytw... | LIANG ZHIHE AND KANG QINGDE | 1998 | Applied Mathematics(A Journal of Chinese Universities)1998,13,4: | 3 |
| 20 | Calculation of Phase Equilibria Based on the Levenberg-Marquardt Method显示文摘The Levenberg-Marquardt method, the best algorithm to obtain the least-square solution of nonlinear equations, is applied to calculate the stable phase equilibria. It can get the best combination between robustness and speed of the calculations. Its application to ternary Al-Si-Mg system is executed in detail. The calculated phase equilibria agree well with the experimental results. Furthermore, the Levenberg-Marquardt method is not sensitive to the initial values. | RuiiieZHANG LeiLI ZhongweiCHEN ZhiHE WanqiJIE | 2005 | Journal of Materials Science & Technology2005,21,1: | 3 |