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| 1 | Use of Biochar as an Amendment for Remediation of Heavy Metal-Contaminated Soils:Prospects and Challenges显示文摘Biochar(BC), known as the new black gold, is a stable, novel carbonaceous by-product that is synthesized through pyrolysis of biological materials in the absence of O_2.Recently, an emerging interest in the application of BC as a robust soil amendment has given rise to a broad research area in science and technology.It is considered a promising remediation option for heavy metal(HM)-contaminated soils to reduce HM bioavailability to plants.Remediation efficacy of BC depends on the porosity, composition,pyrolysis temperature, feedstock, and residence time of pyrolysis.This review article aimed to present an overview of BC use in the immobilization of HMs, i.e., Cd, As, Pb, Zn, Ni, Cu, Mn, Cr, and Sb, in contaminated soils.The remaining uncertain factors, including the specific soil HM immobilization mechanisms, long-term beneficial effects, and potential environmental risks associated with BC application are analyzed.Future research must be conducted to ensure that the management of environmental pollution is in accord with ecological sustainability and adaptation of the black gold biotechnology on a commercial basis for immobilization of HMs in contaminated soils. | Altaf Hussain LAHORI GUO Zhanyu ZHANG Zengqiang LI Ronghua Amanullah MAHAR Mukesh Kumar AWASTHI SHEN Feng Tanveer Ali SIAL Farhana KUMBHAR WANG Ping JIANG Shuncheng | 2017 | Pedosphere2017，27，6： | 28 |
| 2 | Shear wave velocity structure of the crust and upper mantle underneath the Tianshan orogenic belt显示文摘From April, 2003 to September, 2004, a passive broadband seismic array consisting of 60 stations was deployed over the Tianshan orogenic belt by State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration. Among them, 51 stations make up an about 500-km-long profile across the Tianshan Mountains from Kuytun to Kuqa. The receiver function profile and S-wave velocity structure of the crust and upper mantle down to 100 km deep are obtained by using the re-ceiver function method (Liu et al. 1996, 2000). The main results can be summarized as follows: (1) A clear mountain root does not exist beneath the Tianshan Mountains, and the crust-mantle boundaries underneath the stations mostly have transitional structures. This implies that the material differentia-tion between the crust and mantle is not yet accomplished and the orogenic process is still going on. (2) The crust beneath the Tianshan Mountains has laterally blocked structures in direction perpendicular to the mountain strike, and the crust-mantle boundary has a clear dislocation structure. Both of them correspond to each other. (3) The offsets of the Moho discontinuity are highly correlated to the tectonic borders on the surface and that corresponding to the frontal southern Tianshan fault reaches to 14 km. This manifests that large vertical divergent movement took place between different blocks. This sup-ports the discontinuous model of the Tianshan orogeny, and the Tarim block subduction is restricted only to the southern side of the South Tianshan. (4) Inside the upper and middle crust of the Tianshan Mountains exist several low-velocity bodies correlated with high seismicity located on the moun-tain-basin jointures on both sides of the mountain and between different blocks, and the low-velocity bodies on the mountain-basin jointures are inclined obviously to the mountain. This implies that the low-velocity bodies may be correlated closely to the thrust and subduction of the basins on both sides of the mountain, the splicing of adjacent blocks and the fast uplift of the Tianshan Mountains. | LI Yu LIU QiYuan CHEN JiuHui LI ShunCheng GUO Biao LAI YuanGen | 2007 | Science China Earth Sciences2007，50，3： | 16 |
| 3 | Multiple model particle flter track-before-detect for range ambiguous radar显示文摘The middle pulse repetition frequency(MPRF)and high pulse repetition frequency(HPRF)modes are widely adopted in airborne pulse Doppler(PD)radar systems,which results in the problem that the range measurement of targets is ambiguous.The existing data processing based range ambiguity resolving methods work well on the condition that the signal-to-noise ratio(SNR)is high enough.In this paper,a multiple model particle flter(MMPF)based track-beforedetect(TBD)method is proposed to address the problem of target detection and tracking with range ambiguous radar in low-SNR environment.By introducing a discrete variable that denotes whether a target is present or not and the discrete pulse interval number(PIN)as components of the target state vector,and modeling the incremental variable of the PIN as a three-state Markov chain,the proposed algorithm converts the problem of range ambiguity resolving into a hybrid state fltering problem.At last,the hybrid fltering problem is implemented by a MMPF-based TBD method in the Bayesian framework.Simulation results demonstrate that the proposed Bayesian approach can estimate target state as well as the PIN simultaneously,and succeeds in detecting and tracking weak targets with the range ambiguous radar.Simulation results also show that the performance of the proposed method is superior to that of the multiple hypothesis(MH)method in low-SNR environment. | Wang Guohong Tan Shuncheng Guan Chengbin Wang Na Liu Zhaolei | 2013 | Chinese Journal of Aeronautics2013，26，6： | 15 |
| 4 | PM_(2.5) and PM_(10-2.5) chemical composition and source apportionment near a Hong Kong roadway显示文摘Twenty-four-hour PM_(2.5) and PM_(10) samples were collected simultaneously at a highly trafficked roadside site in Hong Kong every sixth day from October 2004 to September 2005.The mass concentrations of PM_(2.5),PM_(10-2.5)(defined as PM_(10)- PM_(2.5)),organic carbon(OC),elemental carbon(EC),water-soluble ions,and up to 25 elements were determined.Investigation of the chemical compositions and potential sources revealed distinct differences between PM_(2.5) and PM_(10-2.5).The annual average mass concentrations were 55.5±25.5 and 25.9±15.7 ug/m^3 for PM_(2.5) and PM_(10-2.5),respectively.EC,OM(OM =OC×1.4),and ammonium sulfate comprised over ~82% of PM_(2.5),accounting for^29%,~27%,and ~25%,respectively,of the PM_(2.5) mass.Low OC/EC ratios(less than 1) for PM_(2.5) suggested that fresh diesel-engine exhaust was a major contributor.Seven sources were resolved for PM_(2.5) by positive matrix factorization(PMF) model,including vehicle emissions(~29%),secondary inorganic aerosols(~27%),waste incinerator/biomass burning(~23%),residual oil combustion(~10%),marine aerosols(~6%),industrial exhaust(~4%),and resuspended road dust(~1%).EC and OM comprised only ~19%of PM_(10-2.5).The average OC/EC ratio of PM_(10-2.5) was 7.8±14.2,suggesting that sources other than vehicular exhaust were important contributors.The sources for PM_(10-2.5) determined by the PMF model included ~20%traffic-generated resuspension(e.g.,tire dust/brake linear/petrol evaporation),~17% locally resuspended road dust,~17% marine aerosols,~12% secondary aerosols/field burning,and ~11%vehicle emissions. | Yan Cheng Shuncheng Lee Zhaolin Gu Kinfai Ho Yunwei Zhang Yu Huang Judith C.Chow John G.Watson Junji Cao Renjian Zhang | 2015 | Particuology2015，13，1： | 14 |
| 5 | Formation and Evolution of Non-dendritic Microstructures of Semisolid Alloys Prepared by Shearing/Cooling Roll Process显示文摘砍 / 凉下来的转动(SCR ) 过程被采用准备 semi-solidA2017 合金。在半固体 A2017 合金的非树枝状的微观结构的形成和进化被学习。当熔融的合金减少 orroll 鞋洞高度的流的温度被减少,半固体营舍的微观结构从粗糙的树突转变成好 equiaxed 谷物,这被显示出。从入口,到转动鞋洞,鞋表面附近的泥浆在粗糙的树突的顺序的半固体的微观结构,堕落树突或 equiaxed 谷物,而是罚款的出口, equiaxed 谷物在转动表面附近。SCR 过程准备的半固体泥浆的 Microstructuralevolution 是熔融的合金起核心作用并且在转动和鞋的表面上第一长成树突。在砍下面并且激动人心由旋转转动给,树突压碎离开并且分散进 melt。在砍下面并且在有固体,树突手臂破裂和 formequiaxed 谷物的大量的部分的半固体泥浆上激动人心微观结构。 | Shuncheng WANG Furong CAO Renguo GUAN Jinglin WEN | 2006 | Journal of Materials Science & Technology2006，22，2： | 13 |
| 6 | A novel RHT-TBD approach for weak targets in HPRF radar显示文摘A novel approach, which can handle ambiguous data from weak targets, is proposed within the randomized Hough transform track-before-detect(RHT-TBD) framework. The main idea is that, without the pre-detection and ambiguity resolution step at each time step, the ambiguous measurements are mapped by the multiple hypothesis ranging(MHR) procedure. In this way, all the information, based on the relativity in time and pulse repetition frequency(PRF) domains, can be gathered among different PRFs and integrated over time via a batch procedure. The final step is to perform the RHT with all the extended measurements, and the ambiguous data is unfolded while the detection decision is confirmed at the end of the processing chain.Unlike classic methods, the new approach resolves the problem of range ambiguity and detects the true track for targets. Finally, its application is illustrated to analyze and compare the performance between the proposed approach and the existing approach. Simulation results exhibit the effectiveness of this approach. | Hongbo YU Guohong WANG Wei WU Shuncheng TAN | 2016 | Science China Earth Sciences2016，59，12： | 6 |
| 7 | Joint range ambiguity resolving and multiple maneuvering targets tracking in clutter via MMPHDF-DA显示文摘It is difficult to track multiple maneuvering targets of which the number is unknown and timevarying,especially when there is range ambiguity.The random finite sets(RFS)based probability hypothesis density filter(PHDF)is an effective solution to the problem of multiple targets tracking.However,when tracking multiple targets via the range ambiguous radar,the problem of range ambiguity has to be solved.In this paper,a multiple model PHDF and data association(MMPHDF-DA)based method is proposed to address multiple maneuvering targets tracking with range ambiguous radar in clutter.Firstly,by introducing the turn rate of target and the discrete pulse interval number(PIN)as components of target state vector,and modeling the incremental variable of the PIN as a three-state Markov chain,the problem of multiple maneuvering targets tracking with range ambiguity is converted into a hybrid state filtering problem.Then,by implementing a novel'track-estimate'oriented association with the filtering results of the hybrid filter,target tracks are provided at each time step.Simulation results demonstrate that the MMPHDF-DA can estimate target state as well as the PIN simultaneously,and succeeds in multiple maneuvering target tracking with range ambiguity in clutter.Simulation results also demonstrate that the MMPHDF-DA can overcome the limitation of the Chinese Remainder Theorem for range ambiguity resolving. | TAN ShunCheng WANG GuoHong WANG Na YU HongBo | 2014 | Science China(Information Sciences)2014，57，8： | 6 |
| 8 | Production of A356 aluminum alloy wheels by thixo-forging combined with a low superheat casting process显示文摘The A356 aluminum alloy wheels were produced by thixo-forging combined with a low superheat casting process.The as-cast microstructure,microstructure evolution during reheating and the mechanical properties of thixo-forged wheels made from the A356 aluminum alloy were studied.The results show that the A356 aluminum alloy round billet with fine,uniform and non-dendritic grains can be obtained when the melt is cast at 635 oC.When the round billet is reheated at 600 oC for 60 min,the non-dendritic grains are changed into spherical ones and the round billet can be easily thixo-forged into wheels.The tensile strength,yield strength and elongation of the thixo-forged wheels with T6 heat treatment are 327.6 MPa,228.3 MPa and7.8%,respectively,which are higher than those of a cast wheel.It is suggested that the thixo-forging combined with the low superheat casting process is an effective technique to produce aluminum alloy wheels with high mechanical properties. | Wang Shuncheng Cai Chang Zheng Kaihong Qi Wenjun | 2013 | China Foundry2013，10，5： | 5 |
| 9 | Crustal structure beneath the Qilian Orogen Zone from multiscale seismic tomography显示文摘The Qilian Orogen Zone(QOZ), located in the north margin of the Tibetan Plateau, is the key area for understanding the deformation and dynamics process of Tibet. Numerous geological and geophysical studies have been carried out on the mechanics of the Tibetan Plateau deformation and uplift; however, the detailed structure and deformation style of the Qilian Orogen Zone have remained uncertain due to poor geophysical data coverage and limited resolution power of inversion algorithms. In this study, we analyze the P-wave velocity structure beneath the Qilian Orogen Zone, obtained by applying multi-scale seismic tomography technique to P-wave arrival time data recorded by regional seismic networks. The seismic tomography algorithm used in this study employs sparsity constraints on the wavelet representation of the velocity model via L1-norm regularization. This algorithm can deal efficiently with uneven-sampled volumes, and can obtain multi-scale images of the velocity model. Our results can be summarized as follows:(1) The crustal velocity structure is strongly inhomogeneous and consistent with the surface geological setting. Significant low-velocity anomalies exist in the crust of northeastern Tibet, and slight high-velocity anomalies exist beneath the Qaidam Basin and Alxa terrane.(2)The Qilian Orogen Zone can be divided into two main parts by the Laji Shan Faults: the northwestern part with a low-velocity feature, and the southeastern part with a high-velocity feature at the upper and middle crust.(3) Our tomographic images suggest that northwestern and southeastern Qilian Orogen Zones have undergone different tectonic processes. In the northwest Qilian Orogen Zone, the deformation and growth of the Northern Tibetan Plateau has extended to the Heli Shan and Beida Shan region by northward overthrusting at the upper crust and thickening in the lower crust. We speculate that in the southeast Qilian Orogen Zone the deformation and growth of the Northern Tibet Plateau were of strike-slip style at the upper crust; in the lower crust, the evidence suggests ductile shear extrusion style and active frontage extension to the Alxa terrane.(4) The multi-scale seismic tomography technique provides multiscale analysis and sparse constraints, which has allowed to us obtain stable, high-resolution results. | Biao Guo JiuHui Chen QiYuan Liu ShunCheng Li | 2019 | Earth and Planetary Physics2019，3，3： | 5 |
| 10 | 西汉张安世墓葬M1墓室内的大气环境调查显示文摘了解待发掘封闭墓葬内的大气环境,可为考古发掘和文物保存环境研究提供科学依据。西汉张安世墓园中的M1墓葬是一座未被盗扰的墓室,本研究在墓室开启前,有针对性地监测了墓室内的微气候参数和大气污染物。结果显示,相对于外界大气,密闭的墓室内低温、高湿、缺氧,且酸性气态污染物浓度较低。因此,在考古发掘及后续保存文物时,应针对不同文物材料采取密闭容器、保湿、避光等措施,避免由于环境骤变导致文物的风化损坏。本研究建立的待发掘墓葬大气环境测试体系及基础数据,可为相关考古和文保工作提供有益的借鉴。 | 曹军骥 杨军昌 胡塔峰 Lee Shuncheng 王新明 Ho Kinfai 董俊刚 丁岩 | 2013 | 文物保护与考古科学2013，25，2： | 4 |
| 11 | Oxygen vacancy-engineered BaTiO_(3)nanoparticles for synergistic cancer photothermal,photodynamic,and catalytic therapy显示文摘With the rapid development of photo-responsive nanomaterials,photo-triggered therapeutic strategies such as photothermal therapy(PTT)and photodynamic therapy(PDT)have been new alternatives to current cancer therapeutic methods.Herein,we have fabricated oxygen vacancy-engineered BaTiO_(3)(BTO-Ov)nanoparticles(NPs)for near-infrared(NIR)light-triggered PTT,PDT,and catalytic therapy cooperatively for significantly improving cancer therapy.Compared to pristine BaTiO_(3)nanoparticles,BTO-Ov has stronger NIR light absorption and narrower band gap structure,which results in superior photothermal conversion and superoxide radical generation capabilities through PTT and PDT.Meanwhile,due to the existence of Ti^(3+),BTO-Ov also exhibits peroxidase(POD)-like activity to produce hydroxyl radical under tumor environment,which can be further improved under 808 nm light irradiation.Both in vitro and in vivo results demonstrate that such a multifunctional therapeutic nanoplatform can achieve a high therapeutic efficacy triggered by a single NIR light irradiation.The defect engineering strategy can be used as a general approach to fabricate multifunctional cancer therapeutic nanoplatform. | Yiming Ding Zhuo Wang Zeyu Zhang Yunchao Zhao Shangyu Yang Yalong Zhang Shuncheng Yao Shaobo Wang Tian Huang Yang Zhang Linlin Li | 2022 | Nano Research2022，15，8： | 3 |
| 12 | Effect of biased estimation on radar-to-ESM track association显示文摘The track association problem of radar and electronic support measure (ESM) has been considered in the literature for several years.This problem is crucial for radar-to-ESM track fusion and is complicated by the presence of individual systematic errors and measurement errors.In order to improve the track association of radar and ESM sensors,a pseudo-linear filtering algorithm is proposed to estimate the target states and improve the stability of the filter.It is found that,however,the correct probability of radar-to-ESM track association decreases as the radar measurement error decreases,when the pseudo-linear filter is used for ESM sensor filtering.In view of the strange phenomenon,this paper analyzes the reason for it by using the statistic theory and further performs Monte Carlo simulation to verify the analysis. | Guohong Wang Xiangyu Zhang Shuncheng Tan | 2012 | Journal of Systems Engineering and Electronics2012，23，2： | 3 |
| 13 | Radial acceleration estimation of multiple high maneuvering targets显示文摘The acceleration of a high maneuvering target in signal processing is helpful to enhance the performance of the tracker and facilitate the classification of targets. At present, most of the research on acceleration estimation is carried out in cases of a single target with time-frequency analysis methods such as fractional Fourier transform(FRFT), Hough-ambiguity transform(HAT), and Wigner-Ville distribution(WVD), which need to satisfy enough time duration and sampling theorem. Only one reference proposed a method of acceleration estimation for multiple targets based on modified polynomial phase transform(MPPT) in the linear frequency modulation(LFM) continuous-wave(CW) radar. The method of acceleration estimation for multiple targets in the pulse Doppler(PD) radar has not been reported so far. Compressive sensing(CS) has the advantage of sampling at a low rate and short duration without sacrificing estimation performance. Therefore, this paper proposes a new method of acceleration estimation for multiple maneuvering targets with the unknown number based on CS with pulse Doppler signals. Simulation results validate the effectiveness of the proposed method under several conditions with different duration, measurement numbers, signal to noise ratios(SNR), and regularization parameters, respectively. Simulation results also show that the performance of the proposed method is superior to that of FRFT and HAT in the condition of multiple targets. | Shuyi Jia Guohong Wang Shuncheng Tan | 2014 | Journal of Systems Engineering and Electronics2014，25，2： | 2 |
| 14 | Recent Progress in Nanoscale Covalent Organic Frameworks for Cancer Diagnosis and Therapy显示文摘Covalent organic frameworks(COFs)as a type of porous and crystalline covalent organic polymer are built up from covalently linked and periodically arranged organic molecules.Their precise assembly,welldefined coordination network,and tunable porosity endow COFs with diverse characteristics such as low density,high crystallinity,porous structure,and large specific-surface area,as well as versatile functions and active sites that can be tuned at molecular and atomic level.These unique properties make them excellent candidate materials for biomedical applications,such as drug delivery,diagnostic imaging,and disease therapy.To realize these functions,the components,dimensions,and guest molecule loading into COFs have a great influence on their performance in various applications.In this review,we first introduce the influence of dimensions,building blocks,and synthetic conditions on the chemical stability,pore structure,and chemical interaction with guest molecules of COFs.Next,the applications of COFs in cancer diagnosis and therapy are summarized.Finally,some challenges for COFs in cancer therapy are noted and the problems to be solved in the future are proposed. | Shuncheng Yao Zhirong Liu Linlin Li | 2021 | Nano-Micro Letters2021，13，11： | 1 |
| 15 | 显示文摘 | Ai Zhihui Zhang Lizhi Lee Shuncheng | 2010 | The Journal of Physical Chemistry C2010，114，18： | 1 |
| 16 | Photocatalytic removal of NO and HCHO over nanocrystalline Zn 2 SnO 4 microcubes for indoor air purification显示文摘 | Zhihui Ai Shuncheng Lee Yu Huang Wingkei Ho Lizhi Zhang | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 17 | Speciated mercury in size-fractionated particles in Shanghai ambient air显示文摘 | Guangli Xiu Ji Cai Wenying Zhang Danian Zhang Andreas Büeler Shuncheng Lee Yan Shen Lihang Xu Xuejuan Huang Ping Zhang | 2008 | Atmospheric Environment2008，，19： | 1 |
| 18 | Molecular, seasonal, and spatial distributions of organic aerosols from fourteen Chinese cities 显示文摘 | Wang Gehui Kawamura Kimitaka Lee Shuncheng | 2006 | Environmental Science and Technology2006，40，15： | 1 |
| 19 | Continuous extruding extending forming of semi-solid A2017 alloy显示文摘 | Wang Shuncheng Cao Furong Li Yinglong Wen Jinglin | 2006 | Journal of Wuhan University of Technology - Mater Sci Ed2006，，1： | 1 |
| 20 | Exploring the vehi- cle dependence behind mode choice: evidence of mo- torcycle dependence in Taipei显示文摘 | CHANG Hsinli WU Shuncheng | 2007 | Transportation Re- search Part A2007，，42： | 1 |
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