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| 1 | Humification characterization of biochar and its potential as a composting amendment显示文摘Biochar has received increasing attention due to its applications as a soil amendment. Here, the chemical properties of solid and water-extractable fractions of four biochar samples were investigated. The results showed that wood biochar and bamboo biochar samples were 60%–80% more hydrophobic than those of rice husk biochar and rice husk ash. In addition, the acidity was 3.88 mmol/g from the total functional groups and 1.03 mmol/g from the carboxyl groups/lactones/phenols found in the wood biochar sample, which were about 1.5 times greater than those of the bamboo biochar sample. These functional groups could be used to determine the sorptive capacity of biochar for ionic solutes and water content and to increase the degradation of compost organics. The wood biochar sample was found to have the most humification materials(fulvic acid-like material + humic acid-like material) in the water-extractable fraction, which was 3–10 times higher than that in the rice husk biochar and rice husk ash; humified materials were not detected in the bamboo biochar sample. Humification materials in biochar may be involved in increasing the proportion of humic acid-like materials in humic-like substances within the compost product. Wood biochar had better hydrophobic, sorptive, aromatic, and humification properties compared to other biochars, suggesting that it may be used in composting in order to exert its effect as both a bulking agent and a composting amendment during the solid waste composting process. | Jining Zhang Fan L Chenghao Luo Liming Shao Pinjing He | 2014 | Journal of Environmental Sciences2014，26，2： | 21 |
| 2 | Treatment and outcomes of 1041 pediatric patients with neuroblastoma who received multidisciplinary care in China显示文摘Importance:Neuroblastoma is the most common extracranial malignant solid tumor in children.Multidisciplinary care is critical to improving the survival of pediatric patients with neuroblastoma.Objective:To systematically summarize the clinical characteristics of children with neuroblastoma and evaluate their prognosis with multidisciplinary care provided in a single center.Methods:This retrospective study analyzed the clinical data of 1041 patients with neuroblastoma who were diagnosed,treated,and followed-up in the Hematology-Oncology Center of Beijing Children’s Hospital from 2007 to 2019.Results:The median age at diagnosis was 34 months;80.8%of the patients were younger than 5 years of age.Notably,243 patients(23.3%)were classified as low-risk,249 patients(23.9%)were classified as intermediate-risk,and 549(52.7%)were classified as high-risk.Furthermore,956 patients underwent surgical resections;986(94.7%)patients received chemotherapy;and 176 patients with high-risk neuroblastoma received hematopoietic stem cell transplantation.The 5-year event-free survival(EFS)rate was 91.3%and 5-year overall survival(OS)rate was 97.5%in low-risk group;in the intermediate-risk group,these rates were 85.1%and 96.7%,respectively,while they were 37.7%and 48.9%in the high-risk group(P<0.001 for both).The 5-year EFS and OS rates were significantly higher in patients diagnosed between 2015 and 2019 than in patients diagnosed between 2007 and 2014(P<0.001).In total,278 patients(26.7%)exhibited tumor relapse or progression;the median interval until relapse or progression was 14 months.Of the 233 patients who died,83%died of relapse or progression of neuroblastoma and 4.3%died of therapy-related complications.Interpretation:The 5-year OS rate was low in high-risk patients,compared with low-and intermediate-risk patients.Multidisciplinary care is critical for improvement of survival in pediatric patients with neuroblastoma.Additional treatment strategies should be sought to improve the prognosis of patients with high-risk neuroblastoma. | Yan Su Hong Qin Chenghao Chen Shengcai Wang Shihan Zhang Dawei Zhang Mei Jin Yun Peng Lejian He Xiaoman Wang Suyun Qian Maoquan Qin Ming Ge Fuquan Zhang Qi Zeng Huanmin Wang Xiaoli Ma Xin Ni | 2020 | Pediatric Investigation2020，4，3： | 16 |
| 3 | Feature Extraction and Identification in Distributed Optical-Fiber Vibration Sensing System for Oil Pipeline Safety Monitoring显示文摘察觉到的分布式的光纤维的颤动(DOVS ) 的高敏感系统基于阶段敏感光时间域反射计(-OTDR) 技术也在真实应用程序引进高讨厌的东西警报率(NAR ) 。在这份报纸,小浪分解(WD ) 和小浪包分解(WPD ) 的特征抽取方法比较地为三个典型现场测试信号被学习,并且一个人工的神经网络(ANN ) 为事件鉴定被造。比较结果证明 WPD 监视的油管道安全地为 DOVS 信号分析和鉴定比 WD 有点好表现。鉴定率能被改进直到 94.4% ,并且讨厌的东西警报率能有效地被控制为有小浪包精力分发特征的鉴定网络象 5.6% 一样低。 | Huijuan WU Ya QIAN Wei ZHANG Chenghao TANG | 2017 | Photonic Sensors2017，7，4： | 15 |
| 4 | Seismic isolation analysis of FPS bearings in spatial lattice shell structures显示文摘一个磨擦摆钟系统(FPS ) 的一个理论模型被介绍为空间格子壳结构的地震隔离检验它的应用程序。有 FPS 轴承的格子壳的运动的一个方程被开发。然后,地震隔离研究被执行因为双层和单个层的格子在不同地震输入下面轰炸结构并且设计 FPS 的参数。地震性能上的 FPS 的摩擦系数和半径的影响被讨论。基于学习,为有 FPS 轴承的格子壳的地震隔离设计的一些建议被给,结论被做它能在 FPS 的应用程序是有用的。关键词地震隔离 - 磨擦摆钟系统 - 空间结构 - 格子壳 - 参数分析旁边支持了:不到宏大号码 50778006 的中国的国家自然科学基础; | Yong-Chul Kim Xue Suduo Zhuang Peng Zhao Wei Li Chenghao | 2010 | Earthquake Engineering and Engineering Vibration2010，9，1： | 14 |
| 5 | Preliminary study of micro-scale zircon oxygen isotopes for Dabie-Sulu metamorphic rocks:Ion probe in situ analyses显示文摘in situ analyses of oxygen isotopes were carried out by ion micro-probe for zircons from 8 localities of HP-UHP metamorphic rocks including eclogites in the Dabie-Sulu terrane. The results show significant heterogene-ity in d 18O values, with variation in different rocks from 8.5 to +9.7 and within one sample from 2 to 12. No measurable difference in d 18O was observed between proto-lith magmatic (detrital) zircons and metamorphic recrystal-lized zircons within analytical uncertainties from the ion micro-probe measurements. This indicates that the meta-morphic zircons have inherited the oxygen isotopic composi-tions of protolith zircons despite the HP to UHP metamor-phism. According to their protolith ages from zircon U-Pb in situ dating by the same ion micro-probe, two groups of oxy-gen isotope composition are recognized, with one having d 18O values of 6—7 for old protolith of 1.9—2.5 Ga ages and the other 0—2 for young protolith of 0.7—0.8 Ga ages. The latter anomalously low d 18O values of zircons in-dicate that the magma has had the obvious involvement of meteoric water when forming the young protolith of high-grade metamorphic rocks. This may be correlated with the snowball Earth event occurring in South China and the world elsewhere during the Neoproterozoic. | CHENDaogong DelouleEtienne CHENGHao XIAQunke WUYuanbao | 2003 | Chinese Science Bulletin2003，48，16： | 12 |
| 6 | Yolk-shell Si/C composites with multiple Si nanoparticles encapsulated into double carbon shells as lithium-ion battery anodes显示文摘The conceptual design of yolk-shell structured Si/C composites is considered to be an effective way to improve the recyclability and conductivity of Si-based anode materials. Herein, a new type of yolk-shell structured Si/C composite (denoted as TSC-PDA-B) has been intelligently designed by rational engineering and precise control. In the novel structure, the multiple Si nanoparticles with small size are successfully encapsulated into the porous carbon shells with double layers benefiting from the strong etching effect of HF. The TSC-PDA-B product prepared is evaluated as anode materials for lithium-ion batteries (LIBs). The TSC-PDA-B product exhibits an excellent lithium storage performance with a high initial capacity of 2108 mAh g^-1 at a current density of 100 mA g^-1 and superior cycling performance of 1113 mAh g^-1 over 200 cycles. The enhancement of lithium storage performance may be attributed to the construction of hybrid structure including small Si nanoparticles, high surface area, and double carbon shells, which can not only increase electrical conductiv让y and intimate electrical contact with Si nanoparticles, but also provide built-in buffer voids for Si nanoparticles to expand freely without damaging the carbon layer. The present findings can provide some scientific insights into the design and the application of advanced Si-based anode materials in energy storage fields. | Le Hu Bin Luo Chenghao Wu Pengfei Hu Lianzhou Wang Haijiao Zhang | 2019 | Journal of Energy Chemistry2019，28，5： | 10 |
| 7 | Extraction, identification, and antioxidant property evaluation of limonin from pummelo seeds显示文摘Limonin, the main bioactive phytochemical constituent of limonoids with multi-functions, is enriched in citrus fruits and often found at a high concentration in citrus seeds. The present study was attempted to introduce a new and efficient extraction method to isolate limonoids from pummelo seeds, and to evaluate the antioxidant property of the main constituent limonin in Hep G2 cells. Three key single factors were identified for the extraction of limonoids from pummelo seeds using the Box-Behnken experiment design of response surface methodology(RSM), and the optimized extraction parameters were treatment with 89.68 m L of anhydrous acetone for 4.62 h at 78.94C, while the yield of limonoids was 11.52 mg/g. The structure of isolated main constituent of the limonoids was further identified as limonin by Fourier transform infrared(FT-IR) spectrometer and nuclear magnetic resonance(NMR)spectrum. Moreover, the molecular data in Hep G2 cells revealed that limonin exerted its anti-oxidant property mainly by the activation of nuclear factor(erythroid-2)-like 2(Nrf2)/kelch-like ECHassociated protein 1(Keap1)-antioxidant response element(ARE) pathway in the form of transcriptional regulation of Nrf2 m RNA and posttranscriptional regulation of Nrf2/Keap1 system. These results demonstrate that pummelo seeds are an ideal source of limonoids, and limonin is proved to exert its anti-oxidant property by the activation of Nrf2/Keap1 pathway. | Si Qin Chenghao Lv Qingshan Wang Zhibing Zheng Xi Sun Minyi Tang Fangming Deng | 2018 | Animal Nutrition2018，，3： | 10 |
| 8 | Research on hybrid multi-terminal high-voltage DC technology for offshore wind farm integration显示文摘Multi-terminal high-voltage DC(MTDC)technology is a promising way to transmit large amounts of offshore wind power to the main grids.This paper proposes a hybrid MTDC scheme to integrate several offshore wind farms into the onshore power grids at different locations.A hybrid four-terminal HVDC system comprising two onshore line commutated converters(LCCs)and two voltage source converters(VSCs)connecting an offshore wind farm is constructed in PSCAD/EMTDC.A coordination control scheme based on the VSCs’AC voltage control and the LCCs’DC voltage droop control is designed to ensure smooth system operation and proper power sharing between onshore AC grids.The operational characteristics of the system are analyzed.In addition,a black start-up method without any auxiliary power supply for the VSCs is proposed.The transmission scheme is tested through simulations under various conditions,including start-up,wind speed variation,and the disconnection of one VSC or of one LCC. | Peng ZHAN Chenghao LI Jinyu WEN Yu HUA Meiqi YAO Naihu LI | 2013 | Journal of Modern Power Systems and Clean Energy2013，1，1： | 9 |
| 9 | Self-adaptive focusing by time reversal through interface between different media显示文摘The time reversal is an unique self-adaptive focusing technique important to ultrasonic imaging. In this paper, the principle and the analytic expression of the ultrasound field in the realization of time reversal during the presence of an interface between two media are presented. Experimental results of time reversal are given and found to agree with theoretical ones. | WEI Wei WANG Chenghao (Institute of Acoustics, Chinese Academy of Sciences Beijing 100080) | 2000 | Chinese Journal of Acoustics2000，19，1： | 9 |
| 10 | THE IDT WITH HIGH INTERNAL REFLECTION SUPPRESSION显示文摘Based on Chen-Haus′theory,an experimental research on the reflection of SAW from ashort-circuited Au-grating on YZ LiNbO3 and a short-circuited Al-recessed groove grating on ST-Xquartz is first presented in this paper where an anomalous reflection phenomena existing in two gratings areconfirmed.In addition,a residual reflection which couldn′t be completely cancelled by means of changingstrip-thickness is pointed out for a short-circuited Au-grating on YZ LiNbO3 both experimentally andtheoretically through extending Chen-Haus′theory to anisotropic crystals.Finally.two kinds of IDT composed of single electrodes:Au-electrode on YZ LiNbO3 and Al-recessed-groove-electrode on ST-X quartz,are proposed for high internal reflection suppression.The experimental results of bandpass filters constructed with the IDTs mentioned above show a great im-provement in passband distortion and a potential usefulness of new structure in high frequency range. | HE Shitang CHEN Dongpei and WANG Chenghao(Institute of Acoustics, Academia Sinica) | 1989 | Chinese Journal of Acoustics1989，8，4： | 7 |
| 11 | Study of self-focusing in underwater waveguide by time reversal method显示文摘Acoustic wave time reversal self-focusing in underwater waveguide is studied.The acoustic wave time reversal is theoretically and experimentally investigated in a half-infinitefluid medium and a shallow fluid layer placed on a hard half-infinite solid medium,respectively,The ray approach method is adopted to study the far field of the acoustic field in theory,and the ultrasonic experiments have been carried out in laboratory to model the underwater waveguide.It is shown by theoretical and experimental results that the focusing gain can be improved by 12dB or more. | ZHANG Bixing WANG Chenghao LU Minghui (Institute of Acoustics, The Chinese academy of sciences Beijing 100080) | 2003 | Chinese Journal of Acoustics2003，22，1： | 7 |
| 12 | Time-frequency analysis of the dispersive Rayleigh wave in stratified media显示文摘宣传在的瑞利波浪的散特征一成层的媒介被一个时间频率分析方法分析,光滑的 Pseudo-Wigner Ville 分发(RSPWVD ) 的重新分配。理论模拟和实验为同类的一半空间和二分层的一半空间被实现。在试验性的结果获得的不同频率范围的组速度分散曲线都相应于在他们的表面排水量振幅的主导的模式,这被显示。多模式瑞利波浪的如此的 modeidentification 在 inversing 被要求中等参数。 | LU Laiyu WANG Chenghao ZHANG Bixing | 2006 | Chinese Journal of Acoustics2006，25，4： | 7 |
| 13 | Focusing in solids and application in acoustic imaging显示文摘Focusing in solids by surface transducer arrays(STA)and the acousticfield distribution on the focal axis are studied in this paper.The relation betweenthe source element width and the field strength at different order focuses is alsodiscussed.Numerical calculation is used to get the focal field distribution as theelement width is changed.Some practical problems such as the minimumdistinguishable frequency,the transversal and longitudinal resolution are investi-gated when this kind of focusing is used for NDT and acoustic imaging.Someexplorative experiments have been done to demonstrate the theory. | QIAO Donghai, WANG Chenghao ZHOU Yuying(Institute of Acoustics, Academia Sinica, Beijing 100080) | 1992 | Chinese Journal of Acoustics1992，11，4： | 5 |
| 14 | Analysis of internal tidal characteristics in the layer above 450 m from acoustic Doppler current profiler observations in the Luzon Strait显示文摘The characteristics of internal tides in the upper layer of the Luzon Strait are investigated on the basis of direct-observation current data recorded on April 25 and September 26, 2008 by an acoustic Doppler current profiler. Spectral analysis and energy estimation show that the diurnals and semidiurnals carry most of the energy of internal tides. Values of the depth-integrated total energy E for the three frequency bands of diurnal, semidiurnal, and high frequencies are 31, 6.9, and 3.4 kJ·m, respectively. Near-inertial peaks are only present in the baroclinic component. The behavior of typical tidal frequencies (i.e., O1, K1, M2, MK3, and M4) and the near-inertial frequency is basically consistent with linear internal wave theory, which predicts E + (ω)/E (ω)=(ω f) 2 /(ω+f) 2 at depths above 66 m, while not all prominent tidal components coincide well with the relation of the linear internal wave field at other depths. Examinations of depth structures of the baroclinic tides and temporal variations show that the surface tides and internal tides are both of mixed type, having diurnal inequality and spring-neap fortnight periods. The K1 and O1 tides have comparable cross-and along-shelf components, while the M2 and S2 tides propagate toward the shelf in the northern South China Sea as wave beams. The amplitude and phase of internal tides vary with time, but M2 and S2 tides appear to have structures dominated by the first mode, while the K1 and O1 tides resemble second-mode structures. The minor to major axis ratios are close to expected values of f/ω in the thermocline. | LIAO GuangHong YUAN YaoChu Kaneko ARATA YANG ChengHao CHEN Hong Taniguchi NAOKAZU Gohda NORIAKI | 2011 | Science China Earth Sciences2011，54，7： | 4 |
| 15 | Effects of mesoscale eddies on the internal solitary wave propagation显示文摘The mesoscale eddy and internal wave both are phenomena commonly observed in oceans. It is aimed to investigate how the presence of a mesoscale eddy in the ocean affects wave form deformation of the internal solitary wave propagation. An ocean eddy is produced by a quasi-geostrophic model in f-plane, and the one-dimensional nonlinear variable-coefficient extended Korteweg-de Vries (eKdV) equation is used to simulate an internal solitary wave passing through the mesoscale eddy field. The results suggest that the mode structures of the linear internal wave are modified due to the presence of the mesoscale eddy field. A cyclonic eddy and an anticyclonic eddy have different influences on the background environment of the internal solitary wave propagation. The existence of a mesoscale eddy field has almost no prominent impact on the propagation of a smallamplitude internal solitary wave only based on the first mode vertical structure, but the mesoscale eddy background field exerts a considerable influence on the solitary wave propagation if considering high-mode vertical structures. Furthermore, whether an internal solitary wave first passes through anticyclonic eddy or cyclonic eddy, the deformation of wave profiles is different. Many observations of solitary internal waves in the real oceans suggest the formation of the waves. Apart from topography effect, it is shown that the mesoscale eddy background field is also a considerable factor which influences the internal solitary wave propagation and deformation. | LIAO Guanghong YANG Chenghao XU Xiaohua SHI Xingang YUAN Yaochu HUANG Weigen | 2012 | Acta Oceanologica Sinica2012，31，5： | 4 |
| 16 | Efficient Scheduling Mapping Algorithm for Row Parallel Coarse-Grained Reconfigurable Architecture显示文摘Row Parallel Coarse-Grained Reconfigurable Architecture(RPCGRA)has the advantages of maximum parallelism and programmable flexibility.Designing an efficient algorithm to map the diverse applications onto RPCGRA is difficult due to a number of RPCGRA hardware constraints.To solve this problem,the nodes of the data flow graph must be partitioned and scheduled onto the RPCGRA.In this paper,we present a Depth-First Greedy Mapping(DFGM)algorithm that simultaneously considers the communication costs and the use times of the Reconfigurable Cell Array(RCA).Compared with level breadth mapping,the performance of DFGM is better.The percentage of maximum improvement in the use times of RCA is 33%and the percentage of maximum improvement in non-original input and output times is 64.4%(Given Discrete Cosine Transfor 8(DCT8),and the area of reconfigurable processing unit is 56).Compared with level-based depth mapping,DFGM also obtains the lowest averages of use times of RCA,non-original input and output times,and the reconfigurable time. | Naijin Chen Zhen Wang Ruixiang He Jianhui Jiang Fei Cheng Chenghao Han | 2021 | Tsinghua Science and Technology2021，26，5： | 4 |
| 17 | Early Cooling History of Eclogites from the Dabie-Sulu Orogen: Constraints from Diffusion Kinetics of Garnet显示文摘For the first time, we apply different geospeedometric models to garnet zoning patterns that were obtained in this study from detailed EMP analyses for garnets from eclogites and granulite in the Dabie-Sulu orogen. Various zonings of cation diffusion were preserved in the garnets, enabling the acquirement of average cooling rates for the highto ultrahigh-pressure rocks without using geochronological approaches. The coesite-bearing hot eclogites yield fast cooling rates of about 20 to 30℃/Ma subsequent to peak metamorphic temperatures, whereas the cold eclogite gives a relatively slow cooling rate of 8℃/Ma at its initial exhumation. A very slow cooling rate of <0.3℃/Ma is obtained for the granulite at Huangtuling, suggesting that the granulite may not be involved in the continental deep subduction. | CHENDaogong CHENGHao | 2004 | Acta Geologica Sinica(English Edition)2004，78，3： | 4 |
| 18 | High-throughput screening identifies established drugs as SARS-CoV-2 PLpro inhibitors显示文摘A new coronavirus(SARS-CoV-2)has been identified as the etiologic agent for the COVID-19 outbreak.Currently,effective treatment options remain very limited for this disease;therefore,there is an urgent need to identify new anti-COVID-19 agents.In this study,we screened over 6,000 compounds that included approved drugs,drug candidates in clinical trials,and pharmacologically active compounds to identify leads that target the SARS-CoV-2 papain-like protease(PLpro).Together with main protease(Mpro),PLpro is responsible for processing the viral replicase polyprotein into functional units.There-fore,it is an attractive target for antiviral drug develop-ment.Here we discovered four compounds,YM155,cryptotanshinone,tanshinone I and GRL0617 that inhibit SARS-CoV-2 PLpro with IC50 values ranging from 1.39 to 5.63 pmol/L.These compounds also exhibit strong antiviral activities in cell-based assays.YM155,an anti-cancer drug candidate in clinical trials,has the most potent antiviral activity with an EC50 value of 170 nmol/L.In addition,we have determined the crystal structures of this enzyme and its complex with YM155,revealing a unique binding mode.YM155 simultaneously targets three'hot'spots on PLpro,including the substrate-binding pocket,the interferon stimulating gene product 15(ISG15)binding site and zinc finger motif.Our results demonstrate the efficacy of this screening and repur-posing strategy,which has led to the discovery of new drug leads with clinical potential for COVID-19 treatments. | Yao Zhao Xiaoyu Du Yinkai Duan Xiaoyan Pan Yifang Sun Tian You Lin Han Zhenming Jin Weijuan Shang Jing Yu Hangtian Guo Qianying Liu Yan Wu Chao Peng Jun Wang Chenghao Zhu Xiuna Yang Kailin Yang Ying Lei Luke W.Guddat Wenqing Xu Gengfu Xiao Lei Sun Leike Zhang Zihe Rao Haitao Yang | 2021 | Protein & Cell2021，12，11： | 4 |
| 19 | Acoustic field analysis of detection and location of targets in layered media by time reversal-reverse time migration mixed method显示文摘Using the time reversal(TR)-reverse time migration(RTM) mixed method, the numerical analysis towards the acoustic field for detection and location of targets in layered media is performed. First the approaches and steps of the numerical analysis and simulation for acoustic field are proposed, then, the acoustic field distribution of single target and multiple targets are further computed by using the approaches of single emission-multiple receiving and multiple emission-multiple receiving. The numerical simulation results indicate that target detection and location can be well realized. By comparison, good results are obtained from the both two approaches, but large time-consuming is observed in way of multiple emission-multiple receiving, and so would be unacceptable. Additionally, the improved way is also proposed for multiple target detection. | GAO Xiang LI Jian SHI Fangfang MA Jun WANG Wen WANG Chenghao | 2017 | Chinese Journal of Acoustics2017，36，4： | 3 |
| 20 | Experimental investigation of the detection and location of a target in layered media by using the TR-RTM mixed method显示文摘Targets in layered media can be detected and located using a time reversal(TR)-reversed-time migration(RTM) mixed method.In this study, this single emission-multiple receiving method is tested experimentally by using two types of layered media and three types of targets. The signal reflected at the interface and the signal scattered by the target are measured by each receiver to obtain the travel time for several transmitter-receiver pairs. Thereafter, the amplitude ratio between the two measured signals is compared with the theoretical amplitude. The RTM process involves the convolution of the forward acoustic beam from the source with the backward acoustic beam from the receiver which adds an appropriate delay determined on the measured travel time data. By using this approach, the acoustic field distribution can be obtained, and the position of the target can be determined.Moreover, the measured positions of the target are compared with the actual position to validate the accuracy of this technique. | Xiang Gao Jian Li Jun Ma JunHong Li FangFang Shi Wen Wang ChengHao Wang | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 3 |
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