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| 1 | China's Wetland Databases Based on Remote Sensing Technology显示文摘Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. In this paper, we review China's wetland databases based on remote sensing(RS) technology after introducing the background theory to the application of RS technology in wetland surveys. A key conclusion is that China's wetland databases are far from sufficient in fulfilling protection and management needs. Our recommendations focus on the use of the hyper-spectral imagery, microwave data, multi-temporal images, and automatic classifications in order to improve the accuracy and efficiency of wetland inventory. Further, attention should also be paid to detect major biophysical features of wetlands and build wetland databases in years after the 1980 s in China. Considering that great gap exists between RS experts and wetland experts, further cooperation between wetland scientists and RS scientists are needed to promote the application of RS in the foundation of wetland databases. | YAN Fengqin LIU Xingtu CHEN Jing YU Lingxue YANG Chaobin CHANG Liping YANG Jiuchun ZHANG Shuwen | 2017 | Chinese Geographical Science2017，27，3： | 4 |
| 2 | Direct ink writing of programmable functional silicone-based composites for 4D printing applications显示文摘Polydimethylsiloxane(PDMS)has been widely used in flexible electronics,soft robotics,and bioelectronics.However,the fabrication of PDMS-based devices has mostly relied on conventional approaches,such as casting and molding,thereby limiting their potential.Here we fabricate PDMS-based composites with programmable microstructures by direct ink writing and realize their practical functionalities of four-dimensional(4D)printing.The mechanical,thermomechanical and magnetic properties of the three-dimensional-printed composites can be well tailored by using carbon,metal,or ceramic functional fillers.By taking advantage of the printable,flexible,and magnetic PDMS composites,we demonstrate new practical functionalities of 4D printing by designing programmable architectures,including magnetic-field-driven battery cases and patchworks,as well as arbitrary morphing ceramic structures.In particular,4D-printed batteries are constructed by PDMS-based battery cases for the first time,which can be actuated via external magnetic field.This study broadens the paradigm of 4D printing for prospective applications,such as implant batteries,biomimetic engineering,and customized biomedical devices. | Zhiyang Lyu J.ustin Koh Gwendolyn J.H.Lim Danwei Zhang Ting Xiong Lei Zhang Siqi Liu Junfei Duan Jun Ding John Wang Jinlan Wang Yunfei Chen Chaobin He | 2022 | Interdisciplinary Materials2022，1，4： | 2 |
| 3 | Preparation, morphology and thermal/mechanical properties of epoxy/nanoclay composite显示文摘 | Lei Wang Ke Wang Ling Chen Yongwei Zhang Chaobin He | 2006 | Composites Part A2006，，11： | 1 |
| 4 | A novel radical surgery maintaining or improving quality of life in early stage tongue cancer显示文摘 | Bin Zhang Huang Hongzhang Pan Chaobin Wang Jianguang Xu Jianghui Chen Weiliang | 2008 | 中国口腔颌面外科杂志2008，6，B05： | 0 |
| 5 | Piezoelectric and ferroelectric properties of Na_(0.5)Bi_(4.5)Ti_(4)O_(15)-BaTiO_(3) composite ceramics with Mg doping显示文摘As one of the representatives of lead-free NBT ceramics,Na_(0.5)Bi_(4.5)Ti_(4)O_(15) has still attracted much attention due to its excellent dielectric properties and has become the focus of research.However,its piezoelectric properties are far from satisfactory.In order to improve the piezoelectric properties of Na_(0.5)Bi_(4.5)Ti_(4)O_(15),Na_(0.5)Bi_(4.5)Ti_(4-x)Mg_(x)O_(y)–BaTiO_(3)(NBTM–BT)composite ceramics were synthesized by a conventional mixed oxide route and sintered at 1040℃ through two-step method.We optimized the electrical properties of NBTM–BT by changing the stoichiometric ratio of Mg content and studied its microscopic mechanism.The piezoelectric coefficient(d33)is stable at about 20 pC/N.Moreover,the maximum remanent polarization(2Pr)of the ceramic is 3.08C/cm^(2) with the coercive field of 18.01 kV/cm.The dielectric constant and dielectric loss for Na_(0.5)Bi_(4.5)Ti_(3.96)Mg_(0.04)–BT composite ceramic were found to be 486 and 0.17 at 10 kHz,respectively.The characteristic peaks of BT and Na_(0.5)Bi_(4.5)Ti_(4)O_(15) can be observed clearly from the X-ray diffraction analysis.SEM analysis showed that all samples were well crystallized.Consequently,the piezoelectric and ferroelectric properties of Na_(0.5)Bi_(4.5)Ti_(4)O_(15)–BT composite ceramic will be enhanced much by Mg doping,which means it has a wider range of applications in electronic devices such as piezoelectric devices. | Chaobin Jiang Chao Ma Qian Luo Kanghui Liu Lu Qin Zhentao Wu Wanqiang Cao Yong Chen | 2019 | Journal of Advanced Dielectrics2019，9，1： | 0 |
| 6 | Joint task scheduling and multi-UAV deployment for aerial computing in emergency communication networks显示文摘This article studies mobile edge computing technologies enabled by unmanned aerial vehicles(UAVs)in disasters.First,considering that the ground servers may be damaged in emergency scenarios,we proposed an air-ground cooperation architecture based on ad-hoc UAV networks.We defined the system cost as the weighted sum of task delay and energy consumption because of different delay sensitivity and energy sensitivity tasks in emergency communication networks.Then,we formulated the system cost-minimization problem of task scheduling and multi-UAV deployments.To solve the proposed mixed integer nonlinear programming problem,we decomposed it to two sub-problems that were solved by proposing a swap matchingbased task scheduling sub-algorithm and a successive convex approximation-based multi-UAV deployment sub-algorithm.Accordingly,we propose a joint optimization algorithm by iterating the two sub-algorithms to obtain a low complexity sub-optimal solution.Finally,the simulation results show that(i)the proposed algorithm converges in several iterations,and(ii)compared with the benchmark algorithms,the proposed algorithm has better performance of reducing task delay and energy consumption and achieves a good tradeoff between them for diverse tasks. | Tiankui ZHANG Chaobin CHEN Yu XU Jonathan LOO Wenjun XU | 2023 | Science China(Information Sciences)2023，66，9： | 0 |
| 7 | Critical Relation Path Aggregation-Based Industrial Control Component Exploitable Vulnerability Reasoning显示文摘With the growing discovery of exposed vulnerabilities in the Industrial Control Components(ICCs),identification of the exploitable ones is urgent for Industrial Control System(ICS)administrators to proactively forecast potential threats.However,it is not a trivial task due to the complexity of the multi-source heterogeneous data and the lack of automatic analysis methods.To address these challenges,we propose an exploitability reasoning method based on the ICC-Vulnerability Knowledge Graph(KG)in which relation paths contain abundant potential evidence to support the reasoning.The reasoning task in this work refers to determining whether a specific relation is valid between an attacker entity and a possible exploitable vulnerability entity with the help of a collective of the critical paths.The proposed method consists of three primary building blocks:KG construction,relation path representation,and query relation reasoning.A security-oriented ontology combines exploit modeling,which provides a guideline for the integration of the scattered knowledge while constructing the KG.We emphasize the role of the aggregation of the attention mechanism in representation learning and ultimate reasoning.In order to acquire a high-quality representation,the entity and relation embeddings take advantage of their local structure and related semantics.Some critical paths are assigned corresponding attentive weights and then they are aggregated for the determination of the query relation validity.In particular,similarity calculation is introduced into a critical path selection algorithm,which improves search and reasoning performance.Meanwhile,the proposed algorithm avoids redundant paths between the given pairs of entities.Experimental results show that the proposed method outperforms the state-of-the-art ones in the aspects of embedding quality and query relation reasoning accuracy. | Zibo Wang Chaobin Huo Yaofang Zhang Shengtao Cheng Yilu Chen Xiaojie Wei Chao Li Bailing Wang | 2023 | Computers, Materials & Continua2023，，5： | 0 |
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