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| 1 | Parameter sensitivity and inversion analysis of a concrete faced rock-fill dam based on HS-BPNN algorithm显示文摘Considering the complex nonlinear relationship between the material parameters of a concrete faced rock-fill dam(CFRD) and its displacements, the harmony search(HS) algorithm is used to optimize the back propagation neural network(BPNN), and the HS-BPNN algorithm is formed and applied for the inversion analysis of the parameters of rock-fill materials. The sensitivity of the parameters in the Duncan and Chang's E-B model is analyzed using the orthogonal test design. The case study shows that the parameters φ0, K, Rf, and Kb are sensitive to the deformation of the rock-fill dam and the inversion analysis for these parameters is performed by the HS-BPNN algorithm. Compared with the traditional BPNN, the HS-BPNN algorithm exhibits the advantages of high convergence precision, fast convergence rate, and strong stability. | SUN PengMing BAO TengFei GU ChongShi JIANG Ming WANG Tian SHI ZhongWen | 2016 | Science China(Technological Sciences)2016,59,9: | 9 |
| 2 | Alternate binding modes of anti-CRISPR viral suppressors AcrF1/2 to Csy surveillance complex revealed by cryo-EM structures显示文摘抗菌素编码 anti-CRISPR suppressors 抵抗他们的细菌的主人的 CRISPR/Cas 免疫,因此便于他们的幸存和复制。以前的研究显示出那二编码噬菌体的 anti-CRISPR 蛋白质, AcrF1 和 AcrF2,如果由由 Csy 监视建筑群阻止目标 DNA 识别的 Pseudomonas aeruginosa 的 CRISPR/Cas 系统,而是精确位于下面机制是未知的,压制类型。这里我们在场 Csy 建筑群一定的 AcrF1/2 的结构由 cryo 他们决定了单个粒子的重建。由结构的分析,我们发现 AcrF1 由防碍在 DNA 目标海滨和 crRNA 分隔符之间的基础配对禁止 Csy 建筑群的目标 DNA 识别。另外,当个别地工作或与 AcrF2 合作时, AcrF1 的多重拷贝与不同模式绑在 Csy 建筑群,它可能排除通过不同机制有约束力的目标 DNA。和以前的报告,我们为二 anti-CRISPR suppressors, AcrF1 和 AcrF2 提供一种全面工作情形,它由指向 Csy 监视建筑群的沉默 CRISPR/Cas 免疫。 | Ruchao Peng Ying Xu Tengfei Zhu Ningning Li Jianxun Qi Yan Chai Min Wu Xinzheng Zhang Yi Shi Peiyi Wang Jiawei Wang Ning Gao George Fu Gao | 2017 | Cell Research2017,27,7: | 3 |
| 3 | Ultra-light and flexible pencil-trace anode for high performance potassium-ion and lithium-ion batteries显示文摘Engineering design of battery configurations and new battery system development are alternative approaches to achieve high performance batteries. A novel flexible and ultra-light graphite anode is fabricated by simple friction drawing on filter paper with a commercial 8 B pencil.Compared with the traditional anode using copper foil as current collector, this innovative current-collector-free design presents capacity improvement of over 200% by reducing the inert weight of the electrode. The as-prepared pencil-trace electrode exhibits excellent rate performance in potassium-ion batteries(KIBs), significantly better than in lithium-ion batteries(LIBs), with capacity retention of 66% for the KIB vs. 28% for the LIB from 0.1 to 0.5 A g^(-1). It also shows a high reversible capacity of ~230 mAh g^(-1) at 0.2 A g^(-1), 75% capacity retention over350 cycles at 0.4 A g^(-1)and the highest rate performance(based on the total electrode weight) among graphite electrodes for K+ storage reported so far. | Zhixin Tai Yajie Liu Qing Zhang Tengfei Zhou Zaiping Guo Hua Kun Liu Shi Xue Dou | 2017 | Green Energy & Environment2017,2,3: | 2 |
| 4 | Unique NiFe–NiCoO2 hollow polyhedron as bifunctional electrocatalysts for water splitting显示文摘It is of significance to design of stable and cost-effective electrocatalyst for water splitting with high efficiency in an alkaline medium.The major obstacles for practical application of water splitting devices are lack of high-efficiency and low-cost electrocatalysts with low overpotential for both HER and OER.In this paper,we report a NiFe alloy decorated NiCoO2 hollow polyhedron(denoted as Ni Fe–Ni Co O2)by using[NiFe(CN)6]- intercalated NiCo–LDH as precursor.As evidenced by the electrochemical active surface area,the resultant Ni Fe–Ni Co O2 composite shows unique hollow nanostructure,which can not only provide abundant mass transport channels,but also increase the contact area of the NiFe–Ni Co O2 material with the electrolyte.The overpotential(η)demand is 286 mV for OER and 102 mV for HER at the current density of 10 mA/cm2 in an alkaline medium of 1 M KOH for the NiFe/NiCoO2 composite.This work provides a new pathway for preparation of the highly efficient bifunctional electrocatalysts for water splitting. | Rong Shi Jiaxin Wang Zhi Wang Tengfei Li Yu-Fei Song | 2019 | Journal of Energy Chemistry2019,28,6: | 2 |
| 5 | Sunlight photocatalytic degradation of ofloxacin using UiO-66/wood composite photocatalysts显示文摘This study synthesized UiO-66(Zr)in situ on wood via a one-step solvothermal method.UiO-66/wood was successfully prepared and its catalytic performance for the ofloxacin(OFX)photodegradation under simulate sunlight was also explored.UiO-66/wood exhibited a better catalytic performance,and its degradation rate constant was about 1.2 and 1.5 times than that of UiO-66 and wood,respectively.The effects of solution initial concentration,pH of the system and dosage of the photocatalyst were explored.Additionally,the active species trapping experiments and UV-vis diffused reflectance spectra measurements were conducted to investigated the photocatalytic mechanism of the UiO-66/wood composite,superoxide radical(O_(2)^(·-))and hydroxyl radical(^(·)OH)were the main reactive species.In addition,the possible degradation pathways of OFX were analyzed by LC-MS.Meanwhile,the UiO-66/wood showed outstanding stability and reusability after 4 cycles experiments.The removal performance of UiO-66/wood towards real samples showed it has potential in actual application. | Linhong Shi Xue Zou Tengfei Wang Dongmei Wang Meikun Fan Zhengjun Gong | 2022 | Chinese Chemical Letters2022,33,1: | 1 |
| 6 | An underaisle air distribution system facilitating humidification of commercial aircraft cabins显示文摘 | Zhang Tengfei Yin Shi Wang Shugang | | 0,,04: | 1 |
| 7 | StRAP2.3, an ERF-Ⅶ transcription factor, directly activates StInvInh2 to enhance cold-induced sweetening resistance in potato显示文摘Potato invertase inhibitor(StInvInh2)positively regulates cold-induced sweetening(CIS)resistance by inhibiting the activity of vacuolar invertase.The distinct expression patterns of StInvInh2 have been thoroughly characterized in different potato genotypes,but the related CIS ability has not been characterized.The understanding of the regulatory mechanisms that control StInvInh2 transcription is unclear.In this study,we identified an ERF‐Ⅶ transcription factor,StRAP2.3,that directly regulates StInvInh2 to positively modulate CIS resistance.Acting as a nuclear-localized transcriptional activator,StRAP2.3 directly binds the ACCGAC cis-element in the promoter region of StInvInh2,enabling promoter activity.Overexpression of StRAP2.3 in CIS-sensitive potato tubers induced StInvInh2 mRNA abundance and increased CIS resistance.In contrast,silencing StRAP2.3 in CIS-resistant potato tubers repressed the expression of StInvInh2 and decreased CIS resistance.We conclude that cold-responsive StInvInh2 is due to the binding of StRAP2.3 to the ACCGAC cis-element in the promoter region of StInvInh2.Overall,these findings indicate that StRAP2.3 directly regulates StInvInh2 to positively modulate CIS resistance,which may provide a strategy to improve the processing quality of potatoes. | Weiling Shi Yuhao Song Tiantian Liu Qiuqin Ma Wang Yin Yuchen Shen Tengfei Liu Chunyan Jiang Kai Zhang Dianqiu Lv Botao Song Jichun Wang Xun Liu | 2021 | Horticulture Research2021,8,1: | 1 |
| 8 | An under-aisle air distribution system facilitating humidification of commercial aircraft cabins显示文摘 | Zhang Tengfei Yin Shi Wang Shugang | 2010 | Building and Environment2010,45,4: | 1 |
| 9 | Long-range gene regulation network of the MGMT enhancer modulates glioma cell sensitivity to temozolomide显示文摘Approximately 80%of primary tumors in the central nervous system are malignant glioma,and>50%of those are diagnosed as glioblastoma(GBM),the most aggressive glioma.Despite treatment advances,GBM prognosis is unsatisfying,and the median survival time of patients is only 14-17 months. | Bohan Chen Anshun He Jinfang Bi Shupeng Sun Yiping Ma Wenbin Wang Dianhao Guo Jun Chen Yuyang Qian Tengfei Shi Guohui Nie Zhongfang Zhao Jiandang Shi Hongzhen Yang Lei Zhang Wange Lu | 2021 | Journal of Genetics and Genomics2021,48,10: | 1 |
| 10 | Fault Tree Analysis of Fire and Explosion Accidents for Dual Fuel (Diesel/Natural Gas) Ship Engine Rooms显示文摘In recent years, China's increased interest in environmental protection has led to a promotion of energy-efficient dual fuel(diesel/natural gas) ships in Chinese inland rivers. A natural gas as ship fuel may pose dangers of fire and explosion if a gas leak occurs. If explosions or fires occur in the engine rooms of a ship, heavy damage and losses will be incurred. In this paper, a fault tree model is presented that considers both fires and explosions in a dual fuel ship; in this model, dual fuel engine rooms are the top events. All the basic events along with the minimum cut sets are obtained through the analysis.The primary factors that affect accidents involving fires and explosions are determined by calculating the degree of structure importance of the basic events.According to these results, corresponding measures are proposed to ensure and improve the safety and reliability of Chinese inland dual fuel ships. | Yifeng Guan Jie Zhao Tengfei Shi Peipei Zhu | 2016 | Journal of Marine Science and Application2016,15,3: | 1 |
| 11 | An under-aisle air distribution system facilitating humification ofcommercial aircraft cabins 显示文摘 | Zhang Tengfei Yin Shi Wang Shugang | 2010 | Building andEnvironment2010,45,4: | 1 |
| 12 | Fault prediction of combine harvesters based on stacked denoising autoencoders显示文摘Accurate fault prediction is essential to ensure the safety and reliability of combine harvester operation.In this study,a combine harvester fault prediction method based on a combination of stacked denoising autoencoders(SDAE)and multi-classification support vector machines(SVM)is proposed to predict combine harvester faults by extracting operational features of key combine components.In general,SDAE contains autoencoders and uses a deep network architecture to learn complex non-linear input-output relationships in a hierarchical manner.Selected features are fed into the SDAE network,deep-level features of the input parameters are extracted by SDAE,and an SVM classifier is then added to its top layer to achieve combine harvester fault prediction.The experimental results show that the method can achieve accurate and efficient combine harvester fault prediction.In particular,the experiments used Gaussian noise with a distribution center of 0.05 to corrupt the test data samples obtained by random sampling of the whole population,and the results showed that the prediction accuracy of the method was 95.31%,which has better robustness and generalization ability compared to SVM(77.03%),BP(74.61%),and SAE(90.86%). | Zhaomei Qiu Gaoxiang Shi Bo Zhao Xin Jin Liming Zhou Tengfei Ma | 2022 | International Journal of Agricultural and Biological Engineering2022,15,2: | 0 |
| 13 | Preparation and Study of Borosilicate Foam Glass with High Thermal Insulation and Mechanical Strength显示文摘Foam glass is a kind of green building material that is widely used because of its excellent thermal insulation and mechanical properties.In this study,the borosilicate foam glass was fabricated by powder sintering method using recycled soda lime waste glass,quartz,and borax as the primary raw materials.CaCO_(3)was used as a foaming agent and Na_(2)CO_(3)as a flux agent.Results showed that as the quartz content decreases from 30 to 17.5 wt.%and borax content increases from 5 to 17.5 wt.%,the pore size,porosity,and thermal insulation of borosilicate foam glass increase significantly,while the compressive strength decreases slightly.When the content of quartz and borax are both 17.5 wt.%,borosilicate foam glass with outstanding performance can be prepared,whose pore distribution is uniform,mean pore size is 1.93 mm,total porosity is 83.44%,thermal conductivity is 0.0711W/(m⋅K),and compressive strength is 2.37 MPa.Finally,the influences of foaming agent content,flux agent content,foaming temperature,and holding time on the pore structure and various properties of borosilicate foam glass were investigated by orthogonal test.According to the results,the foaming temperature has a significant effect,and appropriate foaming agent content,flux agent content,and holding time help to form a uniform pore structure,thereby improving the thermal insulation and mechanical strength of the borosilicate foam glass. | Yiwen Zhang Jianjun Xie Minghui Sun Shaolong Wang Tengfei Xu Yonggen Xu Xiaoqing Ding Ying Shi Lei Zhang | 2023 | Journal of Renewable Materials2023,11,5: | 0 |
| 14 | New Discovery of Upper Crustal High-and Low-Velocity Belts and High-Velocity Core in the Tarim Basin显示文摘The Tarim Basin is the biggest oil-and gas-bearing basin in China,which has undergone long-term and complicated evolutionary history.During each evolutional stage and in different sub-basins in the same stage,the Tarim Basin has different proto-types,and it is thus named a composite and superimposed basin.A study on the basement nature of such a complex but significant to the national oil and gas strategy basin is of great significance(Huang Chenjun et al.,2017).Based on earthquake data,detailed velocity structure of deep basin can be obtained in order to research the basement nature. | WANG Tengfei JIN Zhenkui YU Xiaoxia CHENG Rihui SONG Xue YANG Baoju LI Shuo SHI Shuting | 2019 | Acta Geologica Sinica(English Edition)2019,93,1: | 0 |
| 15 | Human endoderm stem cells reverse inflammation-related acute liver failure through cystatin SN-mediated inhibition of interferon signaling显示文摘Acute liver failure(ALF)is a life-threatening disease that occurs secondary to drug toxicity,infection or a devastating immune response.Orthotopic liver transplantation is an effective treatment but limited by the shortage of donor organs,the requirement for life-long immune suppression and surgical challenges.Stem cell transplantation is a promising alternative therapy for fulminant liver failure owing to the immunomodulatory abilities of stem cells.Here,we report that when transplanted into the liver,human endoderm stem cells(hEnSCs)that are germ layer-specific and nontumorigenic cells derived from pluripotent stem cells are able to effectively ameliorate hepatic injury in multiple rodent and swine drug-induced ALF models.We demonstrate that hEnSCs tune the local immune microenvironment by skewing macrophages/Kupffer cells towards an anti-inflammatory state and by reducing the infiltrating monocytes/macrophages and inflammatory T helper cells.Single-cell transcriptomic analyses of infiltrating and resident monocytes/macrophages isolated from animal livers revealed dramatic changes,including changes in gene expression that correlated with the change of activation states,and dynamic population heterogeneity among these cells after hEnSC transplantation.We further demonstrate that hEnSCs modulate the activation state of macrophages/Kupffer cells via cystatin SN(CST1)-mediated inhibition of interferon signaling and therefore highlight CST1 as a candidate therapeutic agent for diseases that involve over-activation of interferons.We propose that hEnSC transplantation represents a novel and powerful cell therapeutic treatment for ALF. | Yilin Xu Jinglin Wang Haozhen Ren Hao Dai Ying Zhou Xiongzhao Ren Yang Wang Sisi Feng Xiaogang Deng Jiaying Wu Tianlong Fu Tengfei Nie Haifeng He Tongkun Wei Bing Zhu Lijian Hui Bin Li Jing Wang Hongyan Wang Luonan Chen Xiaolei Shi Xin Cheng | 2023 | Cell Research2023,33,2: | 0 |
| 16 | Geochronology and geochemistry of Dongxigao diorite porphyries: implications for Late Neoarchean tectonic evolution of eastern North China Craton显示文摘Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Dongxigao diorite porphyries in Pingyi,western Shandong,to restrict its petrogenesis. The zircons from the Dongxigao diorite porphyries exhibit striped absorption and oscillatory growth zoning in the cathodoluminescence images,which have upward-type characteristics of rare earth elements( REEs) with positive anomaly of Ce and negative anomaly of Eu,and have high Th / U ratios( 0. 06--0. 91),indicating its magma origin. Zircon LA-ICP-MS UPb dating indicates that^(207) Pb /^(206) Pb ages of 16 spots of zircons are between 2476 Ma and 2701 Ma,yielding a weighted mean age of 2 481 ± 8 Ma,which represents the formation age of Dongxigao diorite porphyries,i. e.Late Neoarchaean. Geochemically,the samples have low contents of SiO_2( 54. 94% and 54. 86%) and high amounts of MgO( 7. 19% and 7. 58%) and Mg~#values( 66. 47 and 67. 59). Additionally,the Dongxigao diorite porphyries show enrichment of LREEs and prominent negative Eu anomaly( δEu = 0. 89 and 0. 91),and they are characterized by enrichment of large ion lithophile elements( LILEs)( e. g. Cs,Rb and Ba),depletion of high field strength elements( HFSEs)( e. g. Nb,Ta,Zr,Hf and Ti),and positive anomaly of K and Pb. The results imply that the Dongxigao diorite porphyries dominantly derived from partial melting of enriched lithospheric mantle with attributes of arc magma,and the magma source area was mixed with amounts of continental crust material,it suggests that they formed in transformation tectonic setting changing from compression to intraplate extension. | SHI Jiangpeng YANG Haotian HUO tengfei YANG Donghong | 2016 | Global Geology2016,19,2: | 0 |
| 17 | Petrogenesis of Paleoproterozoic diorite porphyries inLuojiazhuang, western Shandong: constraints fromLA-ICP-MS zircon U-Pb geochronology and geochemistry显示文摘Based on the study of LA-ICP-MS zircon U-Pb geochronology and whole-rock geochemistry for theLuojiazhuang diorite porphyries in Menying , western Shandong , the analyzed zircons exhibit oscillatory zoning in the cathodoluminescence images and have high Th/U ratios (0. 15-1.53) , indicating a magmatic origin.In addition, most of the zircons have narrow metamorphic edges, suggesting that late metamorphic eventsmay exist. The youngest group of magmatic zircon 207Pb/206Pb ages rangng from 2 384 Ma to 2 234 Ma, yieldinga weighted mean age of 2 353 ± 14 Ma, which represents the forming age of the diorite porphyries, as theEarly Paleoproterozoic. Geochemically , the samples are characterized by low Si〇2(54. 54% and 55. 47% ),high MgO (5.22% and 5.49% ) and Mg# values (58 and 59) . Moreover , they show enrichment of light rareearth elements and large ion lithophile elements ( Rb , Ba and K) , depletion of heavy rare earth elements andhigh field strength elements (Nb, Ta , Zr and Hf) , positive anomaly of Pb , and negative anomaly of Ti. Thefact implies that the Luojiazhuang diorite porphyries might derive from partial melting of mantle and mixed with an amount of continental crust material. In summary , they may tectonic setting that stretching along the east-"west direction at the North China Craton in the Early Paleoproterozoic. | YANG Haotian SHI Jiangpeng HUO tengfei YANG Donghong | 2016 | Global Geology2016,19,2: | 0 |
| 18 | An OpenFlow-Based Load Balancing Strategy in SDN显示文摘In today’s datacenter network,the quantity growth and complexity increment of traffic is unprecedented,which brings not only the booming of network development,but also the problem of network performance degradation,such as more chance of network congestion and serious load imbalance.Due to the dynamically changing traffic patterns,the state-of the-art approaches that do this all require forklift changes to data center networking gear.The root of problem is lack of distinct strategies for elephant and mice flows.Under this condition,it is essential to enforce accurate elephant flow detection and come up with a novel load balancing solution to alleviate the network congestion and achieve high bandwidth utilization.This paper proposed an OpenFlow-based load balancing strategy for datacenter networks that accurately detect elephant flows and enforce distinct routing schemes with different flow types so as to achieve high usage of network capacity.The prototype implemented in Mininet testbed with POX controller and verify the feasibility of our load-balancing strategy when dealing with flow confliction and network degradation.The results show the proposed strategy can adequately generate flow rules and significantly enhance the performance of the bandwidth usage compared against other solutions from the literature in terms of load balancing. | Xiaojun Shi Yangyang Li Haiyong Xie Tengfei Yang Linchao Zhang Panyu Liu Heng Zhang Zhiyao Liang | 2020 | Computers, Materials & Continua2020,,1: | 0 |
| 19 | Characteristics of Pollen from Transgenic Lines of Apple Carrying the Exogenous CpTI Gene显示文摘It is fundamental for gene transformation and ecosystem hazard evaluation to study the pollen characteristics of transgenic plants. In this research,the characteristics of pollen from 7-or 8-year-old transgenic apple plants carrying an exogenous Cp TI gene were analyzed. The results showed that there was no significant difference in terms of size,morphology,or exine ornamentation between the pollen of the transgenic plants and the non-transgenic control. However,the transgenic plants had more abnormal pollen grains. Of the 13 transgenic lines tested,12 had a significantly lower amount of pollen and six exhibited a significantly lower germination rate when cultured in vitro. The pollen viability of three transgenic lines was determined,with two showing significantly lower viability than the control. The transgenic Gala apple pollen grains germinated normally via controlled pollination on Fuji apple stigmas. However,the pollen tubes extended relatively slowly during the middle and late development stages,and another 8 h were needed to reach the ovules compared with the control. The gibberellic acid concentration in transgenic Gala apple flowers was lower than in the non-transgenic control during all development stages tested. The abscisic acid concentration in the transgenic flowers was lower during the pink stage,and higher during the ball and fully open stages. Microscopic observation of the anther structure showed no difference. The tapetum of the pollen sac wall in transgenic plants decomposed late and affected pollen grain development,which could be one of the reasons for the lower number of pollen grains and poor viability in the transgenic plants. | SHI Xiaoxin ZHOU Ruijin WANG Qianqian CHANG Tengfei FENG Shasha DU Guoqiang | 2015 | Horticultural Plant Journal2015,1,1: | 0 |
| 20 | In vitro assembly of Ebola virus nucleocapsidlike complex expressed in E. coil显示文摘 | Ruchao Peng Tengfei Zhu Babayemi Olawale Oladejo Abednego Moki Musyoki Yingzi Cui Yi Shi Peiyi Wang George Fu Gao | 2016 | Protein & Cell2016,7,12: | 0 |