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| 1 | Lumbar spine superior-level facet joint violations: percutaneous versus open pedicle screw insertion using intraoperative 3-dimensional computer-assisted navigation显示文摘 | Tian Wei Xu Yunfeng Liu Bo Liu Yajun He Da Yuan Qiang Lang Zhao Lyu Yanwei Han Xiaoguang Jin Peihao | 2014 | Chinese Medical Journal2014,,22: | 10 |
| 2 | Co-doped IT-M0S2 nanosheets embedded in N,S-doped carbon nanobowls for high-rate and ultra-stable sodium-ion batteries显示文摘Despite various 2H-MoS/carbon hybrid nanostructures have been constructed and committed to improve the performance for sodium-ion batteries(SIBs),they still show the limited cycle stability due to the relatively large volumetric expansion during the charge-discharge process Herein,we report the construction of cobalt-doped few-layered 1T-MoS2 nanosheets embedded in N,S-doped carbon(CMS/NSC)nanobowls derived from metal-organic framework(MOF)precursor via a simple in situ sulfurization process.This unique hierarchical structure enables the uniformly dispersed Co-doped 1T-MoS2 nanosheets intimately couple with the highly conductive carbon nanobowls,thus efficiently preventing the aggregation.In particular,the Co-doping plays a crucial role in maintaining the integrity of structure for MoS2 during cycling tests,confirmed by first-principles calculations.Compared with pristine MoS2,the volume deformation of Co-doped MoS2 can be shrunk by a prominent value of 52%during cycling.Furthermore,the few-layered MoS2 nanosheets with 1T metalic phase endow higher conductivity,and thus can surpass its counterpart 2H semiconducting phase in battery performance.By virtue of the synergistic effect of stable structure,appropriate doping and high conductivity,the resulting CMS/NSC hybrid shows superior rate capability and cycle stability.The capacity of CMS/NSC can still be 235.9 mAh·g^-1 even at 25 A·g^-1,which is 51.3%of the capacity at 0.2 A·g^-1.Moreover,the capacity can still remain 218.6 mAh·g^-1 even over 8,240 cycles at 5 Ag·g^-1 with a low decay of 0.0044%per cycle,one of the best performances among the reportec MoS2-based anode materials for SIBs. | Peihao Li Yong Yang Sheng Gong Fan Lv Wei Wang Yiju Li Mingchuan Luo Yi Xing Qian Wang Shaojun Guo | 2019 | Nano Research2019,12,9: | 6 |
| 3 | How does contemporary climate versus climate change velocity affect endemic plant species richness in China?显示文摘Climate change is considered a top threat to biodiversity, but the relative roles of contemporary climate versus the rate of climate change in determining spatial patterns of biodiversity are far from clear. China has a very diverse flora and harbors a high percentage of endemic species, but the mechanisms underlying spatial patterns of plant endemism are poorly understood. This study explores the geographical patterns of a representative sample of 555 endemic seed plant species at the scale of 0.5° latitude 9 0.5° longitude. Ordinary least squares and spatial autoregressive models were compared to assess the relationship between richness of endemics and the rate of climate change in the past century, as well as a group of contemporary climate variables. In China, a high level of endemism was associated with high elevation and low rate of climate change. However, contemporary climate had a stronger impact than climate change velocity in the past century on endemic species richness patterns. Specifically,mean annual precipitation and annual range of temperature were important contemporary climatic factors. The rate of change of annual mean temperature, but not that of annual precipitation, also significantly contributed to the spatial pattern of plant endemic species richness. We found no significant relationship between topographic variation and endemic species richness, while temperature variability at multiple time scales was strongly correlated with the species richness pattern. Future work should consider the direction of climate change and incorporate higher-resolution data. | Chunjing Qiu Zehao Shen Peihao Peng Lingfeng Mao Xinshi Zhang | 2014 | Chinese Science Bulletin2014,59,34: | 4 |
| 4 | Influence of urban morphological parameters on the distribution and diffusion of air pollutants: A case study in China显示文摘Air pollution has a serious fallout on human health,and the influences of the different urban morphological characteristics on air pollutants cannot be ignored.In this study,the relation-ship between urban morphology and air quality(wind speed,CO,and PM_(2.5))in residential neighborhoods at the meso-microscale was investigated.The changes in the microclimate and pollutant diffusion distribution in the neighborhood under diverse weather conditions were simulated by Computational Fluid Dynamics(CFD).This study identified five key urban morphological parameters(Building Density,Average Building Height,Standard Deviation of Building Height,Mean Building Volume,and Degree of Enclosure)which significantly im-pacted the diffusion and distribution of pollutants in the neighborhood.The findings of this study suggested that three specific strategies(e.g.volume of a single building should be re-duced,DE should be increased)and one comprehensive strategy(the width and height of the single building should be reduced while the number of single buildings should be in-creased)could be illustrated as an optimized approach of urban planning to relief the air pollution.The result of the combined effects could provide a reference for mitigating air pollution in sustainable urban environments. | Zhiwen Jiang Haomiao Cheng Peihao Zhang Tianfang Kang | 2021 | Journal of Environmental Sciences2021,33,7: | 3 |
| 5 | Electromagnetic and microwave absorption properties of Er-Ho-Fe alloys显示文摘The Er_xHo_(2-x)Fe_(17)(x = 0.0, 0.1,0.2, 0.3, 0.4) powders were prepared by arc melting and high energy ball milling method. The influence of the Er substitution on phase structure, morphology, saturation magnetization,electromagnetic parameters was investigated by X-ray diffraction(XRD),scanning electron microscopy(SEM), vibrating sample magnetometer(VSM) and vector network analyzer(VNA),respectively. The results show that the saturation magnetization increases and the average particle size increases with the increase of Er content. The minimum absorption peak frequency shifts towards a lower frequency region with the increase of Er content. The Er_(0.3)Ho_(1.7)Fe_(17) powder can achieve the minimum RL of-24.07 dB at 6.96 GHz with a thickness of 2.0 mm and the minimum RL is less than-20 dB at the thickness range from 2.0 to 3.0 mm. The minimum RL of Er_(0.3)Ho_(1.7)Fe_(17) is-37.26 dB at5.68 GHz and the frequency bandwidth of R<-10 dB reaches about 1.2 GHz with a thickness of 2.4 mm.And the microwave absorbing properties of the composite with different weight ratios of Er_(0.3)Ho_(1.7)Fe_(17)/graphene were researched. The microwave absorbing peaks of the composite shift to lower frequency with the increase of graphene content. The values of the minimum RL of Er_(0.3)Ho_(1.7)Fe_(17)/graphene are close to-10 dB with absorbing coating thicknesses increased. | Jialiang Luo Shunkang Pan Lichun Cheng Peihao Lin Yu He Junqing Chang | 2018 | Journal of Rare Earths2018,36,7: | 3 |
| 6 | Acquisition of channel state information for mm Wave massive MIMO: traditional and machine learning-based approaches显示文摘The accuracy of channel state information(CSI) acquisition directly affects the performance of millimeter wave(mmWave) communications. In this article, we provide an overview on CSI acquisition,including beam training and channel estimation for mmWave massive multiple-input multiple-output systems.The beam training can avoid the estimation of a high-dimension channel matrix, while the channel estimation can flexibly exploit advanced signal processing techniques. In addition to introducing the traditional and machine learning-based approaches in this article, we also compare different approaches in terms of spectral efficiency, computational complexity, and overhead. | Chenhao QI Peihao DONG Wenyan MA Hua ZHANG Zaichen ZHANG Geoffrey Ye LI | 2021 | Science China(Information Sciences)2021,64,8: | 3 |
| 7 | Effect of integrated Traditional Chinese and Western Medicine on Gout显示文摘OBJECTIVE:To evaluate the curative effect of integrated Traditional Chinese and Western Medicine on gout,and to investigate the therapy timing and exact treatment options of integrated medicine.METHODS:Totally 860 patients were enrolled,including 460 patients with intermittent gout,200 patients with active Traditional Chinese Medicine(TCM)syndrome(TCM syndrome score≥6)and200 patients with stable TCM syndrome(score<6).They were randomly divided into intervention and control groups.The control group was treated according to Western Medicine guidelines.The intervention group was treated with integrated Traditional Chinese and Western Medicine.The efficacy of TCM syndrome,joint pain score,joint swelling score,ESR,C-reactive protein,serum uric acid,liver and kidney function,and the duration of remission of TCM syndrome were compared between the two groups before and after treatments.RESULTS:For the patients with stable TCM syndrome,there was no significant difference in the effective rate and inefficiency between the intervention group and the control group.For the active type,the effective rate of the intervention group is better than the control group significantly.For the stable type,there was no significant difference between the intervention group and the control group in improving the scores of joint pain and swelling,reducing the level of ESR,C-reactive protein,serum uric acid and improving liver and kidney function.For the active type,the differences between the two groups were significant.The stable stage of gout in the intervention group was longer than the control group.CONCLUSION:For the gout patients with stable TCM syndrome in the acute stage of gout,we can use TCM treatment or Western Medicine alternatively;for the patients with active TCM syndrome,the scheme of combination of Traditional Chinese and Western Medicine can be applied,with the better curative effect than any medicine alone. | LIU Wei WU Yuanhao XUE Bin JIN Yue ZHANG Shumin LI Peihao XIE Qing WANG Aihua GAO Jingyue CAI Yue ZHANG Bo LIU Xiaoya WANG Yi DUAN Ran | 2021 | Journal of Traditional Chinese Medicine2021,41,5: | 3 |
| 8 | A novel method of dynamic characteristics analysis of machine tool based on unit structure显示文摘A novel approach,which can be used for dynamic characteristics analysis of machine tools based on unit structure(US),is reported in this paper.The concepts of unit structures for design of machine tools are defined.In order to satisfy the dynamic characteristics requirement of high natural frequency and light-weight of US,a design method of multi-disciplinary optimization of NSGA-II about unit structures driven by natural frequency and mass is developed.Through analyzing the unit structures,key factors affecting the natural frequency and mass are extracted,and the mathematical models of natural frequency and mass about unit structures are also established by using central composite design and response surface model.The goal of high natural frequency and light-weight is reached by using the multi-objective genetic algorithms.The Pareto optimal set is also obtained.The dynamic behavior of US is investigated by the experimental modal analysis.To show the efficiency of the proposed novel method,the example of YKW51250 gear shaping machine bed is used.Through optimization of NSGA-II about US of YKW51250 machine bed,the natural frequency of YKW51250 gear shaping machine bed is increased by 30.4%and its mass decreased by 5.2%comparing with the original design.By studying the dynamic characteristics of the simplified machine tools bed,useful laws are obtained,and these laws can be used in primary design of NC machine tools structures.The optimal method based on US can be also applied to the dynamic optimal design of machine tools and other similar equipments. | ZHU PeiHao CHEN LiHai | 2014 | Science China(Technological Sciences)2014,57,5: | 3 |
| 9 | Tie rod preload analysis of a 100MN hydraulic press显示文摘 | ZHU Peihao ZHANG Lianhong YU Bing | 2012 | Applied Mechanics andMaterials2012,121,: | 1 |
| 10 | Flat friction spot joining of aluminum alloy to carbon fiber reinforced polymer sheets:Experiment and simulation显示文摘The Al alloy and carbon fiber reinforced polymer(CFRP)hybrid structures,incorporating the performance advantages of the two materials,have been attracting more attention in high-end manufacturing fields.In the current investigation,the flat friction spot joining(FSJ)was employed in joining the AA6061-T6 alloy and CFRP sheets.The significance of temperature distribution in influencing joint quality was highlighted through analyzing interface microstructural features,weld defect formation as well as fractography.To understand the role of thermal energy generation and conduction in the process comprehensively,a 3D thermal-mechanical coupling finite element model was established.The interfacial temperature was characterized by an uneven distribution behavior due to the inhomogeneous heat distribution.The peak temperatures on the top surface and Al alloy to CFRP interface at 1500 rpm rotational speed with 0.1 mm/s plunging speed were 498℃and 489°C,respectively.The peak interface temperature was reduced to286℃at 250 rpm,which produced an extremely small melted area.Compared with the plunging speed,rotational speed was found to be the predominant parameter for determining the joint property,which could be optimized to simultaneously realize the avoidance of thermal decomposition of CFRP,the sufficient melting duration time,and the wide enough melted area.Simulated thermal histories and melted area profiles were in agreement with experimental ones.The findings could be utilized to provide some feasible guidance for process optimization of dissimilar FSJ of metals and composites. | Peihao Geng Ninshu Ma Hong Ma Yunwu Ma Kazuki Murakami Huihong Liu Yasuhiro Aoki Hidetoshi Fujii | 2022 | Journal of Materials Science & Technology2022,,12: | 1 |
| 11 | LOCALLY EKELAND'S VARIATIONAL PRINCIPLE AND SOME SURJECTIVE MAPPING THEOREMS显示文摘§1.IntroductionLet(M,d)beacompletemetricspace,letf:M→R∪{+∞}bealowersemicontinuousfunction,notidenticaly+∞andboundedfrombelow... | ZHONG CHENGKUI * ZHAO PEIHAO * | 1998 | Chinese Annals of Mathematics,Series B1998,19,3: | 1 |
| 12 | The existence of three nontrivial solutions of a class of ellipitic systems显示文摘 | Zhao Peihao Zhou Wujie Zhong Chengkui | 2002 | Nonlinear Analysis2002,49,3: | 1 |
| 13 | Efficient small-molecule donor with improved structural order and molecular aggregation enabled by side-chain modification显示文摘Side-chain modification is a proven effective approach for morphology manipulation in organic solar cells(OSCs).However,in-depth analysis and investigation involving side-chain modification towards morphology improvement,including molecular microstructure,orientating packing and aggregation are urgent for all-small-molecule(ASM)systems.Herein,employing a fluorine-modified two-dimension benzodithiophene(BDT)as central unit,we contrastively synthesized two small-molecule donors,namely BDT-F-SR and BDT-F-R,each welding alkylthio side-chains on thienyl of central BDT unit and the other grafted non-sulfuric alkyl side-chains.As predicted,the synergetic side-chain modification of fluorination and alkyl changeover triggers diverse molecular dipole moments and orientations,resulting in different molecular energy levels,thermal stabilities,molecular planarity and order.Eventually,together with the preeminent small-molecule acceptor Y6,BDT-F-R-based ASM OSCs obtain enhanced power conversion efficiency(PCE)of 13.88%compared to BDT-F-SR-based devices(PCE of 12.75%)with more suitable phase-separation and balanced carrier mobilities.The contrast results reveal that alkyl sidechains seem to be a more satisfactory partner for fluorine-modified 2D BDT-based small-molecule donors compared to alkylthio pendants,and highlight the significance of subtle side-chain modification for molecular structural order fun-tuning and morphology control,laying the foundation for efficient ASM OSCs. | Haiyan Chen Ke Yang Peihao Huang Dingqin Hu Hua Tang Jie Lv Gang Li Shirong Lu | 2021 | Materials Reports(Energy)2021,1,4: | 1 |
| 14 | Changes in the distribution and abundance of wintering Lesser White-fronted Goose Anser erythropus in eastern China显示文摘 | Wang Xin Anthony D Fox Cong Peihao | 2012 | Bird Conservation International2012,22,2: | 1 |
| 15 | Multiple nontrivial solutions to a p -Kirchhoff equation显示文摘 | Duchao Liu Peihao Zhao | 2012 | Nonlinear Analysis2012,,13: | 1 |
| 16 | Within-Winter Shifts in Lesser White-Fronted Goose Anser erythropus Distribution at East Dongting Lake, China显示文摘 | Cong Peihao Wang Xin Cao Lei | 2012 | Ardea2012,100,1: | 1 |
| 17 | A neural network-based approach for dynamic quality prediction in a plastic injection molding process显示文摘 | Chen Wenchin Tai Peihao Wang Minwen | 2008 | Expert Systems with Applications2008,35,: | 1 |
| 18 | Physical connection decreases benefits of clonal integration in Alternanthera philoxeroides under three warming scenarios 显示文摘 | LI Jingji PENG Peihao HE Weiming | 2012 | Plant Biology2012,14,2: | 1 |
| 19 | Sexual Dimorphism and Geographic Variation in the Asian Lance-headed Pitviper Protobothrops mucrosquamatus in the China's Mainland显示文摘Sexual dimorphism(SD) and geographic variation(GV) are widespread in snakes. Protobothrops mucrosquamatus(Cantor 1839) is one of the most common Asian venomous snakes with a wide geographical distribution. We examined SD and GV patterns for this species by using multivariate statistical analyses of external morphological characters scored from specimens from the China's Mainland. The result displayed that SD was significant in several external characters in P. mucrosquamatus, and the male P. mucrosquamatus formed two distinct clusters(Hainan Island and China's Mainland), but the females did not. Based on our present work and the other data, we concluded that no significantly intraspecific differentiation is present within this species. | Guanghui ZHONG Qin LIU Cao LI Peihao PENG Peng GUO | 2017 | Asian Herpetological Research2017,18,2: | 1 |
| 20 | Food constraints explain the restricted distribution of wintering L esser W hite‐fronted G eese A nser erythropus in C hina显示文摘 | Xin Wang Anthony D. Fox Peihao Cong Lei Cao | 2013 | Ibis2013,,: | 1 |