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| 1 | Internet of Things to network smart devices for ecosystem monitoring显示文摘Smart, real-time, low-cost, and distributed ecosystem monitoring is essential for understanding and managing rapidly changing ecosystems. However, new techniques in the big data era have rarely been introduced into operational ecosystem monitoring, particularly for fragile ecosystems in remote areas.We introduce the Internet of Things(IoT) techniques to establish a prototype ecosystem monitoring system by developing innovative smart devices and using IoT technologies for ecosystem monitoring in isolated environments. The developed smart devices include four categories: large-scale and nonintrusive instruments to measure evapotranspiration and soil moisture, in situ observing systems for CO2 and d13 C associated with soil respiration, portable and distributed devices for monitoring vegetation variables, and Bi-CMOS cameras and pressure trigger sensors for terrestrial vertebrate monitoring. These new devices outperform conventional devices and are connected to each other via wireless communication networks. The breakthroughs in the ecosystem monitoring IoT include new data loggers and longdistance wireless sensor network technology that supports the rapid transmission of data from devices to wireless networks. The applicability of this ecosystem monitoring IoT is verified in three fragile ecosystems, including a karst rocky desertification area, the National Park for Amur Tigers, and the oasis-desert ecotone in China. By integrating these devices and technologies with an ecosystem monitoring information system, a seamless data acquisition, transmission, processing, and application IoT is created. The establishment of this ecosystem monitoring IoT will serve as a new paradigm for ecosystem monitoring and therefore provide a platform for ecosystem management and decision making in the era of big data. | Xin Li Ning Zhao Rui Jin Shaomin Liu Xiaomin Sun Xuefa Wen Dongxiu Wu Yan Zhou Jianwen Guo Shiping Chen Ziwei Xu Mingguo Ma Tianming Wang Yonghua Qu Xinwei Wang Fangming Wu Yuke Zhou | 2019 | Science Bulletin2019，64，17： | 10 |
| 2 | WSe2 2D p-type semiconductor-based electronic devices for information technology:Design,preparation,and applications显示文摘The pioneering exfoliation of monolayer tungsten diselenide has greatly inspired researchers toward semiconducting applications.WSe2 belongs to a family of transition-metal dichalcogenides.Similar to graphene,WSe2 and analogous dichalcogenides have layered structures with weak van der Waals interactions between two adjacent layers.First,the readers are presented with the fundamentals of WSe2,such as types,morphologies,and properties.Here,we report the characterization principles and practices such as microscopy,spectroscopy,and diffraction.Second,the methods for obtaining high-quality WSe2,such as exfoliation,hydrothermal and chemical vapor deposition,are briefly listed.With advantages of light weight,flexibility,and high quantum efficiency,2D materials may have a niche in optoelectronics as building blocks in p-n junctions.Therefore,we introduce a state-of-the-art demonstration of heterostructure devices employing the p-type WSe2 semiconductor.The device architectures include field-effect transistors,photodetectors,gas sensors,and photovoltaic solar cells.Due to its unique electronic,optical,and energy band properties,WSe2 has been increasingly investigated due to the conductivity of the p-type charge carrier upon palladium contact.Eventually,the dynamic research on WSe2 and van der Waals heterostructures is summarized to arouse the passion of the 2D research community. | Qilin Cheng Jinbo Pang Dehui Sun Jingang Wang Shu Zhang Fan Liu Yuke Chen Ruiqi Yang Na Liang Xiheng Lu Yanchen Ji Jian Wang Congcong Zhang Yuanhua Sang Hong Liu Weijia Zhou | 2020 | InfoMat2020，2，4： | 5 |
| 3 | Modeling unsaturated flow in fractured rocks with scaling relationships between hydraulic parameters显示文摘Modeling unsaturated flow in fractured rocks is essential in various subsurface engineering applications,but it remains a great challenge due to the difficulties in determining the unsaturated hydraulic properties of rocks that contain various scales of fractures.It is generally accepted that the van Genuchten(VG)model can be applied to fractured rocks,provided that the hydraulic parameters could be representatively determined.In this study,scaling relationships between the VG parameters(a and n)and hydraulic conductivity(K)across 8 orders of magnitude,from 10^(-10)m/s to 10^(-2)m/s,were proposed by statistical analysis of data obtained from 1416 soil samples.The correlations were then generalized to predict the upper bounds of VG parameters for fractured rocks from the K data that could be obtained more easily under field conditions,and were validated against a limited set of data from cores,fractures and fractured rocks available in the literature.The upper bound estimates significantly narrow the ranges of VG parameters,and the representative values of a and n for fractured rocks at the field scale can then be determined with confidence by inverse modeling using groundwater observations in saturated zones.The proposed methodology was applied to saturated-unsaturated flow modeling in the right-bank slope at the Baihetan dam site with a continuum approach,showing that most of the flow behaviors in fractured rocks in this complex hydrogeological condition could be properly reproduced.The proposed method overcomes difficulties in suction measurement in fractured rocks with strong heterogeneity,and provides a feasible way for modeling of saturated-unsaturated flow in fractured rocks with acceptable engineering accuracy. | Yi-Feng Chen Yuke Ye Ran Hu Zhibing Yang Chuang-Bing Zhou | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，6： | 4 |
| 4 | The N^6-adenine methylation in yeast genome profiled by single-molecule technology显示文摘The most common and abundant DNA modification is 5-methylcytosine(5mC),which has been well-established as an epigenetic mark regulating gene expression in eukaryotes(Jones,2012).Another DNA modification N^6-methyldeoxyadenosine(6mA),previously reported as a widespread DNA methylation in prokaryotes, | Zhe Liang Guoliang Yu Jingrong Liu Yuke Geng Jinghui Mao Depeng Wang Jiapeng Zhou Xiaofeng Gu | 2018 | Journal of Genetics and Genomics2018，45，4： | 3 |
| 5 | Effect of pretreatment with different concertrations of morphine, fentanyl and tramadol on the differentiation of human helper T cells in vitro显示文摘Objective: To investigate and compare the effects of different concentrations of morphine, fentanyl and tramadol on the differentiation of human adult helper T cells in vitro. Methods: Twenty out-patients without immune disease were selected and their peripheral blood was collected. Then the whole blood of peripheral blood mononuclear cells (PBMCs) were pretreated with different concentration of morphine, fentanyl and tramadol for 24 h. The level of CD4+IFN-γ+IL-2+/CD4+IL-4+IL-10+ was analyzed by three-color flow cytometry, and the CD4+CCR5+ and CD4+CCR3+ cells were counted to observe the imbalance of Th2/Th2. Results: The number of Th2 increased significantly and the ratio of Th2/Th2 decreased dramatically compared with the control group, and there was a dose-dependent fashion in all drugs. Conclusion: Morphine, fentanyl and tramadol can direct Th0 cells toward Th2 differentiation, especially morphine and fentanyl. | Yanning Qian Wenjie Jin Ping Chen Ling Wang Huijuan Wang Yuke Tian Xuejun Zhou | 2005 | Journal of Nanjing Medical University2005，19，6： | 1 |
| 6 | Evaluation of freeze-thaw erosion in Tibet based on the cloud model显示文摘Freeze-thaw erosion can lead to accelerated soil loss,which is an important factor related to soil erosion in cold regions.Tibet is a typical region that is seriously affected by freeze-thaw erosion.Traditionally,the analytic hierarchy process(AHP)method is used to calculate the weight of the factors in evaluations of freeze-thaw erosion,but this method cannot accurately depict the fuzziness and randomness of the problem.To overcome this disadvantage,this study proposed an improved AHP method based on the cloud model for the evaluation of the factors impacting freeze-thaw erosion.To establish an improved evaluation method for freeze-thaw erosion in Tibet,the following six factors were selected:mean annual air temperature,mean annual ground surface temperature,average annual precipitation,aspect,vegetation coverage,and topographic relief.The traditional AHP and the cloud model were combined to assign the weights of the impacting factors,and a consistency check was performed.The comprehensive evaluation index model was used to evaluate the intensity of freeze-thaw erosion in Tibet.The results show that freeze-thaw erosion is extensive,stretching over approximately 66.1%of Tibet.Moreover,mild erosion and moderate erosion are the most widely distributed erosion intensity levels,accounting for 36.4%and 34.4%of the total freeze-thaw erosion,respectively.The intensity of freeze-thaw erosion gradually increased from slight erosion in the northwest to severe erosion in the southeast of the study region.The evaluation results for the intensity and distribution of freeze-thaw erosion in Tibet were confirmed to be consistent with the actual situation.In brief,this study supplies a new approach for quantitatively evaluating the intensity of freeze-thaw erosion in Tibet. | Junfu FAN Taoying HU Xiao YU Jiahao CHEN Liusheng HAN Yuke ZHOU | 2021 | Frontiers of Earth Science2021，15，3： | 1 |
| 7 | MoC nanoclusters anchored Ni@N‐doped carbon nanotubes coated on carbon fiber as three‐dimensional and multifunctional electrodes for flexible supercapacitor and self‐heating device显示文摘With the rapid development of different kinds of wearable electronic devices,flexible and high‐capacity power sources have attracted increasing attention.In this study,a facile strategy to fabricate Ni nanoparticles embedded in N‐doped carbon nanotubes(CNTs)(Ni@NCNTs)homogeneously coated on the surface of carbon fiber with a multistructural component of molybdenum carbide(MoC/Ni@NCNTs/CC)was synthesized.There are two forms of MoC in MoC/Ni@NCNTs/CC,including the MoC nanoclusters in a size of 2 to 4 nm anchored on Ni@N‐doped CNTs and the MoC nanoparticles as an interface between MoC/Ni@NCNTs and carbon cloth(CC).Multifunctional MoC/Ni@NCNTs/CC served as both positive and negative electrode and a heater in flexible supercapacitors and in wearable devices,which exhibited excellent electrochemical and heating performance.Besides,an all‐solid‐state supercapacitor consists of two pieces of MoC/Ni@NCNTs/CC that exhibited extraordinary energy storage performance with high‐energy density(78.7μWh/cm2 at the power density of 2.4 mW/cm2)and excellent cycling stability(≈91%capacity retention after 8000 cycles).Furthermore,all‐solid‐state flexible supercapacitors were incorporated with an MoC/Ni@NCNTs/CC electrode into self‐heating flexible devices for keeping the human body warm.Thus,MoC/Ni@NCNTs/CC is a promising electrode material for flexible and wearable storage systems and heating electronic application. | Fan Liu Jietong He Xiaoyu Liu Yuke Chen Zhen Liu Duo Chen Hong Liu Weijia Zhou | 2021 | Carbon Energy2021，3，1： | 1 |
| 8 | A novel method for solving shortest tool length based on compressing 3D check surfaces relative to tool postures显示文摘Solving the shortest tool length quickly under a known tool trajectory in multi-axis machining of complex channel parts is an urgent problem in industrial production. To solve this problem, a novel and efficient method is proposed which is featured by extracting only a few necessary curves from the check surface instead of sampling the entire surface. By rotating and compressing the 3 D check surface relative to all tool postures, the boundaries of the area occupied by the 2 D compressed surfaces are the essential elements for determining the shortest tool length. A tracking-based numerical algorithm is introduced to efficiently solve the silhouette curves which are formed in compressing. To define the multi-taper shaped tool holding system(THS) which is commonly used in production, a characterization model for THS profile is established. A model for solving the shortest tool length is finally constructed based on the critical interference relationship between the THS profile and all compressed boundary curves. For acceleration, the boundary splines are segmented according to their knot vectors. Then a new concept called the axis-aligned tool length box(AATB) is introduced,which can provide a conservative range of tool length for a spline segment. By scanning the AATBs of all spline segments, the very few effective spline segments that may ultimately determine the shortest tool length are filtered out. This acceleration method makes the solution for the shortest tool length more focused and efficient. The results of experimental examples are also reported to validate the efficiency and accuracy of the proposed algorithm. | Xiangyu LI Junxue REN Ximing LV Yuke ZHOU Congle LIU | 2021 | Chinese Journal of Aeronautics2021，34，2： | 1 |
| 9 | A conserved unusual posttranscriptional processing mediated by short,direct repeated (SDR) sequences in plants显示文摘In several stress responsive gene loci of monocot cereal crops,we have previously identified an unusual posttranscriptional processing mediated by paired presence of short direct repeated (SDR) sequences at 5' and 3' splicing junctions that are distinct from conventional (U2/U12-type) splicing boundaries.By using the known SDR-containing sequences as probes,24 plant candidate genes involved in diverse functional pathways from both monocots and dicots that potentially possess SDR-mediated posttranscriptional processing were predicted in the GenBank database.The SDRs-mediated posttranscriptional processing events including cis-and trans-actions were experimentally detected in majority of the predicted candidates.Extensive sequence analysis demonstrates several types of SDR-associated splicing peculiarities including partial exon deletion,exon fragment repetition,exon fragment scrambling and trans-splicing that result in either loss of partial exon or unusual exonic sequence rearrangements within or between RNA molecules.In addition,we show that the paired presence of SDR is necessary but not sufficient in SDR-mediated splicing in transient expression and stable transformation systems.We also show prokaryote is incapable of SDR-mediated premRNA splicing. | Xiangli Niu Di Luo Shaopei Gao Guangjun Ren Lijuan Chang Yuke Zhou Xiaoli Luo Yuxiang Li Pei Hou Wei Tang Bao-Rong Lu Yongsheng Liu | 2010 | Journal of Genetics and Genomics2010，37，1： | 0 |
| 10 | Laser-assisted synthesis of cobalt@N-doped carbon nanotubes decorated channels and pillars of wafer-sized silicon as highly efficient three-dimensional solar evaporator显示文摘The Co@NCNTs/Si pillars with channels is assemble to a suitable pure water gathering device,which is applied in seawater desalination and sewage purification to produce pure water by utilizing solar energy.High-efficiency utilization of solar energy to generate water vapor is popular,recyclable,and environmentally friendly for seawater desalination and sewage purification,helping to alleviate the global water shortage crisis.Here,we report an efficient and simple method to prepare a threedimensional(3 D) evaporator for steam generation by harnessing the power of the sun.This evaporation is composed of one-dimensional(1 D) cobalt embedded and nitrogen doped carbon nanotubes(Co@NCNTs) and 3 D silicon pillars array structure(Si pillars).The Co@NCNTs/Si pillars shows a wide light absorption range provided by carbon nanotubes and a long light absorption path because of the silicon pillars.The surface temperature of the sample rises rapidly in 1.5 min and exceed 80C under solar illumination of one sun.The water evaporation can be high as 1.21 kg m^(-2) h^(-1) under one sun irradiation(1 kW/m^(2)) with the energy efficiency up to 82.4%.This scalable Co@NCNTs/Si pillars can prepare pure water from seawater and sewage,where the removal rate of ions in seawater and pollutants in sewage is similar to 100%.Based on our research,this multistage three-dimensional structure is a simple and efficient novel photothermal material for extensive seawater desalination and sewage purification. | Yiwei Zhao Haifeng Yuan Xiaofei Zhang Guobin Xue Jiebin Tang Yuke Chen Xiaoli Zhang Weijia Zhou Hong Liu | 2021 | Chinese Chemical Letters2021，32，10： | 0 |
| 11 | Fabrication of patterned transparent conductive glass via laser metal transfer for efficient electrical heating and antibacteria显示文摘Vapor deposition and three-dimensional(3D)printing technology are considered to be conventional methods to achieve patterned metal film preparation through the assistance of masks and high temperature.Therefore,there are still some challenges in fabricating metal films in template-free and normal temperature environment.In this work,we report a flexible and rapid laser metal transfer(LMT)technique for fabricating the various metal films(Cu,Ni,Sn,Al,Fe,and Ag)with different patterns without templates on arbitrary substrates(glass,polyimide(PI)films,and aluminum nitride(AlN)ceramic).Especially,the obtained transparent conductive glass displays high transmittance(more than 90%)and adjustable resistances(≈5Ω).According to the Joule effect,the interface resistance between Cu particles and copper oxide coating produces the high temperature approximately 280℃ at 2 V in a short time(≈60 s)and remains stable at 120℃ over 12 h.At last,the multifunctional glass with Cu patterns also shows excellent bactericidal activity(≈95%).This work demonstrates that laser metal transfer is an exceeding effective means of fabricating the micro/nano structures with potential applications in functional devices. | Xiaoyan Liu Ting Zhang Mengchen Xu Yang Li Haiqing Wang Yuke Chen Xuzihan Zhang Zenan Wang Xiaoyan Li Weijia Zhou Hong Liu | 2024 | Nano Research2024，17，3： | 0 |
| 12 | Research on Multi-Core Processor Analysis for WCET Estimation显示文摘Real-time system timing analysis is crucial for estimating the worst-case execution time(WCET)of a program.To achieve this,static or dynamic analysis methods are used,along with targeted modeling of the actual hardware system.This literature review focuses on calculating WCET for multi-core processors,providing a survey of traditional methods used for static and dynamic analysis and highlighting the major challenges that arise from different program execution scenarios on multi-core platforms.This paper outlines the strengths and weaknesses of current methodologies and offers insights into prospective areas of research on multi-core analysis.By presenting a comprehensive analysis of the current state of research on multi-core processor analysis for WCET estimation,this review aims to serve as a valuable resource for researchers and practitioners in the field. | LUO Haoran HU Shuisong WANG Wenyong TANG Yuke ZHOU Junwei | 2024 | ZTE Communications2024，22，1： | 0 |
| 13 | Light Intensity Affects the Coloration and Structure of Chimeric Leaves of Ananas comosus var.bracteatus显示文摘Ananas comosus var.bracteatus is an important ornamental plant because of its green/white chimeric leaves.The accumulation of anthocyanin makes the leaf turn to red especially in the marginal part.However,the red fades away in summer and winter.Light intensity is one of the most important factors affecting leaf color along the seasons.In order to understand the effects of light intensity on the growth and coloration of the chimeric leaves,Ananas comosus var.bracteatus was grown under full sunlight,50%shade and 75%shade for 75 days to evaluate the concentration of pigments,the color parameters(values L^(*),a^(*),b^(*))and the morpho-anatomical variations of chimeric leaves.The results showed that a high irradiance was beneficial to keep the chimeric leaves red.However,prolonged exposure to high irradiance caused a damage,some of the leaves wrinkled and even burned.Shading instead decreased the concentration of anthocyanin and increased the concentration of chlorophyll,especially in the white marginal part of the leaves.Numerous chloroplasts were observed in the mesophyll cells of the white marginal part of the chimeric leaves under shading for 75 days.The increase in chlorophyll concentration resulted in a better growth of plants.In order to balance the growth and coloration of the leaves,approximately 50%shade is suggested to be the optimum light irradiance condition for Ananas comosus var.bracteatus in summer. | Wei Yang Yuke Lin Yanbin Xue Meiqin Mao Xuzixing Zhou Hao Hu Jiawen Liu Lijun Feng Huiling Zhang Jiaheng Luo Jun Ma | 2022 | Phyton-International Journal of Experimental Botany2022，91，2： | 0 |
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