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| 1 | An overview of resistive random access memory devices显示文摘With recent progress in material science, resistive random access memory (RRAM) devices have attracted interest for nonvolatile, low-power, nondestructive readout, and high-density memories. Relevant performance parameters of RRAM devices include operating voltage, operation speed, resistance ratio, endurance, retention time, device yield, and multilevel storage. Numerous resistive-switching mechanisms, such as conductive filament, space-charge-limited conduction, trap charging and discharging, Schottky Emission, and Pool-Frenkel emission, have been proposed to explain the resistive switching of RRAM devices. In addition to a discussion of these mechanisms, the effects of electrode materials, doped oxide materials, and different configuration devices on the resistive-switching characteristics in nonvolatile memory applications, are reviewed. Finally, suggestions for future research, as well as the challenges awaiting RRAM devices, are given. | LI YingTao LONG ShiBing LIU Qi LU HangBing LIU Su LIU Ming | 2011 | Chinese Science Bulletin2011，56，28： | 9 |
| 2 | Principle of designing slope compensation in PFC Boost converter显示文摘Due to wide input fluctuation with line frequency of 50 Hz, power-factor-correction (PFC) Boost converters tend to exhibit fast-scale instability over time domain. The traditional remedy is to impose slope compensation so as to weaken or eliminate this instability. A theoretical principle on the implementation of slope compensation signal is still lacking. Empirical design will induce over compensation frequently, resulting in a large decrease of power factor. In order to tackle this issue, by constructing the discrete-time iterative map of the PFC Boost converter from the viewpoint of bifurcation control theory of nonlinear systems, consequently, the criterion of critical stability for the PFC circuit can be established. Based on this stability criterion, appropriate design of slope compensation can be achieved. Our work indicates that 3 main circuit parameters (i.e. switching cycle, output reference voltage and inductor) determine the effective amplitude design of the slope compensation signal. The results, validated by a large quantity of analytical and numerical studies, show that appropriate slope compensation can be effective in weakening (or controlling) fast-scale bifurcation while maintaining a rather high input power factor. | ZHOU YuFei HUANG JiaCheng WANG ShiBing JIANG Wei CHEN JunNing | 2009 | Science in China(Series F)2009，52，11： | 6 |
| 3 | Progress in aqueous rechargeable batteries显示文摘Over the past decades, a series of aqueous rechargeable batteries(ARBs) were explored, investigated and demonstrated. Among them,aqueous rechargeable alkali-metal ion(Li^+Na^+, K^+) batteries, aqueous rechargeable-metal ion(Zn^(2+),Mg^(2+), Ca^(2+), Al^(3+)) batteries and aqueous rechargeable hybrid batteries are standing out due to peculiar properties. In this review, we focus on the fundamental basics of these batteries, and discuss the scientific and/or technological achievements and challenges. By critically reviewing state-of-the-art technologies and the most promising results so far, we aim to analyze the benefits of ARBs and the critical issues to be addressed, and to promote better development of ARBs. | Jilei Liu Chaohe Xu Zhen Chen Shibing Ni ZeXiang Shen | 2018 | Green Energy & Environment2018，3，1： | 6 |
| 4 | Improving the electrical performance of resistive switching memory using doping technology显示文摘In this paper, improvements of resistive random access memory (RRAM) using doping technology are summarized and analyzed. Based on a Cu/ZrO2/Pt device, three doping technologies with Ti ions, Cu, and Cu nanocrystal, respectively, are adopted in the experiments. Compared to an undoped device, improvements focus on four points: eliminating the electroforming process, reducing operation voltage, improving electrical uniformity, and increasing device yield. In addition, thermal stability of the high resistance state and better retention are also achieved by the doping technology. We demonstrate that doping technology is an effective way of improving the electrical performance of RRAM. | WANG Yan LIU Oi LU HangBing LONG ShiBing WANG Wei LI YingTao ZHANG Sen LIAN WenTai YANG JianHong LIU Ming | 2012 | Chinese Science Bulletin2012，57，11： | 6 |
| 5 | Toward emerging gallium oxide semiconductors:A roadmap显示文摘Owing to the advantages of ultra-wide bandgap and rich material systems,gallium oxide(Ga_(2)O_(3))has emerged as a highly viable semiconductor material for new researches.This article mainly focuses on the growth processes,material characteristics,and applications of Ga_(2)O_(3).Compared with single crystals and the epitaxial growth of other wide-bandgap semiconductors,large-size and high-quality��-Ga_(2)O_(3) single crystals can be efficiently grown with a low cost,making them highly competitive.Thanks to the availability of high-quality single crystals,epi-taxial films,and rich material systems,high-performance semiconductor devices based on Ga_(2)O_(3) go through a booming development in recent years.The defects and interfaces of Ga_(2)O_(3) are comprehensively analyzed owing to their significant influence on practical applications.In this study,the two most common applications of Ga_(2)O_(3) materials are introduced.The high breakdown electric field,high working temperature,and excellent Baliga’s figure-of-merit of Ga_(2)O_(3) represent an inspiring prospect for power electronic devices.In addition,the excellent absorption in deep-ultraviolet band provides new ideas for optoelectronic detectors and ensures the dramatic progress.Finally,the summary,challenges,and prospects of the Ga_(2)O_(3) materials and devices are presented and discussed. | Yuan Yuan Weibing Hao Wenxiang Mu Zhengpeng Wang Xuanhu Chen Qi Liu Guangwei Xu Chenlu Wang Hong Zhou Yanni Zou Xiaolong Zhao Zhitai Jia Jiandong Ye Jincheng Zhang Shibing Long Xutang Tao Rong Zhang Yue Hao | 2021 | Fundamental Research2021，1，6： | 5 |
| 6 | Theoretical and numerical studies of crack initiation and propagation in rock masses under freezing pressure and far-field stress显示文摘Water-bearing rocks exposed to freezing temperature can be subjected to freezeethaw cycles leading to crack initiation and propagation,which are the main causes of frost damage to rocks.Based on the Griffith theory of brittle fracture mechanics,the crack initiation criterion,propagation direction,and crack length under freezing pressure and far-field stress are analyzed.Furthermore,a calculation method is proposed for the stress intensity factor(SIF) of the crack tip under non-uniformly distributed freezing pressure.The formulae for the crack/fracture propagation direction and length of the wing crack under freezing pressure are obtained,and the mechanism for coalescence of adjacent cracks is investigated.In addition,the necessary conditions for different coalescence modes of cracks are studied.Using the topology theory,a new algorithm for frost crack propagation is proposed,which has the capability to define the crack growth path and identify and update the cracked elements.A model that incorporates multiple cracks is built by ANSYS and then imported into FLAC3 D.The SIFs are then calculated using a FISH procedure,and the growth path of the freezing cracks after several calculation steps is demonstrated using the new algorithm.The proposed method can be applied to rocks containing fillings such as detritus and slurry. | Yongshui Kang Quansheng Liu Xiaoyan Liu Shibing Huang | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，5： | 5 |
| 7 | Synergistic Effect of Cation and Anion for Low-Temperature Aqueous Zinc-Ion Battery显示文摘Although aqueous zinc-ion batteries have gained great development due to their many merits,the frozen aqueous electrolyte hinders their practical application at low temperature conditions.Here,the synergistic e ect of cation and anion to break the hydrogen-bonds network of original water molecules is demonstrated by multi-perspective characterization.Then,an aqueous-salt hydrates deep eutectic solvent of 3.5 M Mg(ClO_(4))_(2)+1 M Zn(ClO_(4))_(2)is proposed and displays an ultralow freezing point of-121℃.A high ionic conductivity of 1.41 mS cm-1 and low viscosity of 22.9 mPa s at-70℃ imply a fast ions transport behavior of this electrolyte.With the benefits of the low-temperature electrolyte,the fabricated Zn||Pyrene-4,5,9,10-tetraone(PTO)and Zn||Phenazine(PNZ)batteries exhibit satisfactory low-temperature performance.For example,Zn||PTO battery shows a high discharge capacity of 101.5 mAh g^(-1)at 0.5 C(200 mA g^(-1))and 71 mAh g^(-1)at 3C(1.2 A g^(-1))when the temperature drops to-70℃.This work provides an unique view to design anti-freezing aqueous electrolyte. | Tianjiang Sun Shibing Zheng Haihui Du Zhanliang Tao | 2021 | Nano-Micro Letters2021，13，12： | 4 |
| 8 | Overexpression of SlOFP20 affects floral organ and pollen development显示文摘The OVATE gene was initially identified in tomato and serves as a key regulator of fruit shape.There are 31 OFP members in the tomato genome.However,their roles in tomato growth and reproductive development are largely unknown.Here,we cloned the OFP transcription factor SlOFP20.Tomato plants overexpressing SlOFP20 displayed several phenotypic defects,including an altered floral architecture and fruit shape and reduced male fertility.SlOFP20 overexpression altered the expression levels of some brassinosteroid(BR)-associated genes,implying that SlOFP20 may play a negative role in the BR response,similar to its ortholog OsOFP19 in rice.Moreover,the transcript accumulation of gibberellin(GA)-related genes was significantly affected in the transgenic lines.SlOFP20 may play an important role in the crosstalk between BR and GA.The pollen germination assay suggested that the pollen germination rate of SlOFP20-OE plants was distinctly lower than that of WT plants.In addition,the tomato pollen-associated genes SlCRK1,SlPMEI,LePRK3,SlPRALF,and LAT52 were all suppressed in the transgenic lines.Our data imply that SlOFP20 may affect floral organ and pollen development by modulating BR and GA signaling in tomato. | Shengen Zhou Zongli Hu Fenfen Li Shibing Tian Zhiguo Zhu Anzhou Li Guoping Chen | 2019 | Horticulture Research2019，6，1： | 4 |
| 9 | Traditional Chinese Medicine Automated Diagnosis Based on Knowledge Graph Reasoning显示文摘Syndrome differentiation is the core diagnosis method of Traditional Chinese Medicine(TCM).We propose a method that simulates syndrome differentiation through deductive reasoning on a knowledge graph to achieve automated diagnosis in TCM.We analyze the reasoning path patterns from symptom to syndromes on the knowledge graph.There are two kinds of path patterns in the knowledge graph:one-hop and two-hop.The one-hop path pattern maps the symptom to syndromes immediately.The two-hop path pattern maps the symptom to syndromes through the nature of disease,etiology,and pathomechanism to support the diagnostic reasoning.Considering the different support strengths for the knowledge paths in reasoning,we design a dynamic weight mechanism.We utilize Naïve Bayes and TF-IDF to implement the reasoning method and the weighted score calculation.The proposed method reasons the syndrome results by calculating the possibility according to the weighted score of the path in the knowledge graph based on the reasoning path patterns.We evaluate the method with clinical records and clinical practice in hospitals.The preliminary results suggest that the method achieves high performance and can help TCM doctors make better diagnosis decisions in practice.Meanwhile,the method is robust and explainable under the guide of the knowledge graph.It could help TCM physicians,especially primary physicians in rural areas,and provide clinical decision support in clinical practice. | Dezheng Zhang Qi Jia Shibing Yang Xinliang Han Cong Xu Xin Liu Yonghong Xie | 2022 | Computers, Materials & Continua2022，，4： | 4 |
| 10 | Progress of power field effect transistor based on ultra-wide bandgap Ga_2O_3 semiconductor material显示文摘As a promising ultra-wide bandgap semiconductor, gallium oxide(Ga_2O_3) has attracted increasing attention in recent years. The high theoretical breakdown electrical field(8 MV/cm), ultra-wide bandgap(~ 4.8 eV) and large Baliga's figure of merit(BFOM) of Ga_2O_3 make it a potential candidate material for next generation high-power electronics, including diode and field effect transistor(FET). In this paper, we introduce the basic physical properties of Ga_2O_3 single crystal, and review the recent research process of Ga_2O_3 based field effect transistors. Furthermore, various structures of FETs have been summarized and compared, and the potential of Ga_2O_3 is preliminary revealed. Finally, the prospect of the Ga_2O_3 based FET for power electronics application is analyzed. | Hang Dong Huiwen Xue Qiming He Yuan Qin Guangzhong Jian Shibing Long Ming Liu | 2019 | Journal of Semiconductors2019，40，1： | 4 |
| 11 | Energy Efficiency Optimization for Heterogeneous Cellular Networks Modeled by Matérn Hard-Core Point Process显示文摘The Poisson point process(PPP) has been widely used in wireless network modeling and performance analysis due to the independence between its nodes. Therefore, it may not be a suitable model for many of the exclusive networks between the nodes. This paper analyzes the energy efficiency(EE) and optimizes the two-tier heterogeneous cellular networks(Het Nets). Considering the mutual exclusion between macro base stations(MBSs) distribution, the deployment of MBSs is modeled by the Matérn hard-core point process(MHCPP), and the deployment of pico base stations(PBSs) is modeled by the PPP. We adopt a simple approximation method to study the signal to interference ratio(SIR) distribution in two-tier MHCPP-PPP networks and then derive the coverage probabilities, the average data rates and the energy efficiency of Het Nets. Finally, an optimization algorithm is proposed to improve the EE of Het Nets by controlling the transmit power of PBSs. The simulation results show that the EE of a system can be effectively improved by selecting the appropriate transmit power for the PBSs. In addition, two-tier MHCPP-PPP Het Nets have higher energy efficiency than two-tier PPP-PPP Het Nets. | Yonghong Chen Jie Yang Xuehong Cao Shibing Zhang | 2020 | China Communications2020，17，8： | 4 |
| 12 | A 10×10 deep ultraviolet light-emitting micro-LED array显示文摘In this work,we design and fabricate a deep ultraviolet(DUV)light-emitting array consisting of 10×10 micro-LEDs(μ-LEDs)with each device having 20μm in diameter.Strikingly,the array demonstrates a significant enhancement of total light output power by nearly 52%at the injection current of 100 mA,in comparison to a conventional large LED chip whose emitting area is the same as the array.A much higher(~22%)peak external quantum efficiency,as well as a smaller efficiency droop forμ-LED array,was also achieved.The numerical calculation reveals that the performance boost can be attributed to the higher light extraction efficiency at the edge of eachμ-LED.Additionally,the far-field pattern measurement shows that theμ-LED array possesses a better forward directionality of emission.These findings shed light on the enhancement of the DUV LEDs performance and provide new insights in controlling the light behavior of theμ-LEDs. | Huabin Yu Muhammad Hunain Memon Hongfeng Jia Haochen Zhang Meng Tian Shi Fang Danhao Wang Yang Kang Shudan Xiao Shibing Long Haiding Sun | 2022 | Journal of Semiconductors2022，43，6： | 3 |
| 13 | Analyzing trap generation in silicon-nanocrystal memory devices using capacitance and current measurement显示文摘The combination of capacitance-and current-voltage(CV/IV) measurements is used to analyze trap generation in silicon-nanocrystal memory devices during Fowler-Nordheim(FN) programming/erasing cycling.CV and IV curves are measured after certain P/E cycles.The flatband voltage(Vfb) and the threshold voltage(Vth) are extracted from CV curves by solving one-dimensional Schr?dinger and Poisson equations.Both hole and electron trappings are observed in the tunneling SiO2.They show up in the accumulation and the inversion,respectively.By fitting FN tunneling current,the area densities of cycling-induced electron traps in the blocking oxide and in the tunneling oxide are finally determined. | YANG XiaoNan ZHANG ManHong WANG Yong HUO ZongLiang LONG ShiBing ZHANG Bo LIU Jing LIU Ming | 2012 | Science China(Technological Sciences)2012，55，3： | 3 |
| 14 | Dynamic edge-based biomarker non-invasively predicts hepatocellular carcinoma with hepatitis B virus infection for individual patients based on blood testing显示文摘Hepatitis B virus (HBV)-induced hepatocellular carcinoma (HCC) is a major cause of cancer-related deaths in Asia and Africa. Developing effective and non-invasive biomarkers of HCC for individual patients remains an urgent task for early diagnosis and convenient monitoring. Analyzing the transcriptomic profiles of peripheral blood mononuclear cells from both healthy donors and patients with chronic HBV infection in different states (i.e. HBV carrier, chronic hepatitis B, cirrhosis, and HCC), we identified a set of 19 candidate genes according to our algorithm of dynamic network biomarkers. These genes can both characterize different stages during HCC progression and identify cirrhosis as the critical transition stage before carcinogenesis. The interaction effects (i.e. coexpressions) of candidate genes were used to build an accurate prediction model: the so-called edge-based biomarker. Considering the convenience and robustness of biomarkers in clinical applications, we performed functional analysis, validated candidate genes in other independent samples of our collected cohort, and finally selected COL5A1, HLA-DQB1, MMP2, and CDK4 to build edge panel as prediction models. We demonstrated that the edge panel had great performance in both diagnosis and prognosis in terms of precision and specificity for HCC, especially for patients with alpha-fetoprotein-negative HCC. Our study not only provides a novel edge-based biomarker for non-invasive and effective diagnosis of HBV-associated HCC to each individual patient but also introduces a new way to integrate the interaction terms of individual molecules for clinical diagnosis and prognosis from the network and dynamics perspectives. | Yiyu Lu Zhaoyuan Fang Meiyi Li Chen Qian Tao Zeng Lina Lu Qilong Chen Hui Zhang Qianmei Zhou Yan Sun Xuefeng Xue Yiyang Hu Luonan Chen Shibing Su | 2019 | Journal of Molecular Cell Biology2019，11，8： | 3 |
| 15 | Novel spectrum sensing and access in cognitive radio networks显示文摘The throughput, delay and collision probabilitybetween tim primary users (PUs) and secondaryusers (SUs) have been considered as the inain per-formance measures in cognitive radio (CR) net-works [1]. The longer the sensing period, the moreaccurate the spectrum sensing. But a longer sens-ing period will result in lower system throughput. | Shibing ZHANG Yingdong HU Li ZHANG Zhihua BAO | 2018 | Science China(Information Sciences)2018，61，8： | 2 |
| 16 | Recent progress and strategies toward high performance zinc-organic batteries显示文摘Energy sustainable development has stimulated the pursuit of an eco-friendly energy storage system.Carbon peak and neutrality targets oriented energy storage development will guide the way of further studies on batteries system.However,conventional batteries system(lead-acid batteries,lithium-ion batteries)based on ungreen transition metal oxide,flammable electrolytes or hazardous metals cannot keep pace with the development of society sooner or later.Thus,vast explorations on the advanced rechargeable battery systems were conducted.Compared with other battery systems,zinc ion battery systems with inherent safety,low cost were widely investigated.Especially,the zinc organic batteries based on the eco-efficiency organic cathodes were promising alternative advanced batteries for future energy storage systems.Therefore,various organics and different electrochemistry mechanisms were explored in the zinc batteries system.Herein,a timely review on elaborate analysis about functional groups,fundamentals,progress accompanied by the discussion on the four core issues:voltage,capacity,rate performance,cycle life was presented.Specifically,aiming at these issues,three levels of solution strategies:materials design concepts,morphology structure optimization and electrolyte environment were summarized and proposed for the development and innovation of zinc organic batteries. | Shibing Zheng Qiaoran Wang Yunpeng Hou Lin Li Zhanliang Tao | 2021 | Journal of Energy Chemistry2021，30，12： | 2 |
| 17 | Interfacial reaction between zirconium alloy and graphite mold/yttrium oxide ceramic mold显示文摘Zirconium alloys are active in the molten state and tend to react with the mold during casting. The casting technology of zirconium is not yet well established; especially in selecting the mold materials, which are diffi cult to determine. In the present work, the interfacial reactions between zirconium casting and casting mold were studied. The zirconium alloy was melted in a vacuum arc skull furnace and then cast into the graphite mold and ceramic mold, respectively. The zirconium casting samples were characterized using SEM, EDS and XRD with an emphasis on the chemical diffusion of elements. A reaction layer was observed at the casting surface. Chemical analysis shows that chemical elements C, O and Y from the mold are diffused into the molten zirconium, and new phases, such as ZrC, Zr3O, YO1.335 and Y6ZrO11, are formed at the surface. In addition, an end product of zirconium valve cast in a yttria mold has a compact structure and good surface quality. | Xie Huasheng Liu Hongyu Zhao Jun Liu Shibing Shi Kun | 2014 | China Foundry2014，11，2： | 2 |
| 18 | miR-20b-5p attenuates hypoxia-induced apoptosis in cardiomyocytes via the HIF-1α/NF-κB pathway显示文摘Chronic hypoxia is a common inducer of end-stage cardiovascular disease.In cells under hypoxia,the hypoxia-inducible factor-1(HIF-1)plays a vital role in regulating downstream target genes.However,the mechanism of hypoxia in card io myocytes is still unclear.In this study,we aimed to identify novel downstream epigenetic targets of HIF-1α in cardiomyocytes under hypoxia.H9c2 cells were exposed to hypoxia condition,and quantitative real-time PCR analysis was performed to evaluate the expression of miR-20b-5p.The results indicated that the expression of miR-20b-5p was down-regulated in H9c2 cells under low oxygen condition.Meanwhile,HIF-1α overexpression further down-regulated the miR-20b-5p expression in H9c2 cells transfected with HIF-1α plasmids.In addition,Annexin-V-FITC/PI flow cytometry analysis suggested that overexpression of miR-20b-5p attenuated cell apoptosis under hypoxia condition in H9c2 cells.Western blot analysis showed that the hypoxia apparently increased Bax and cleaved-caspase-3,but decreased Bcl-2 expression in H9c2 cells,indicating that hypoxia-induced NF-κB signaling pathway activation is mediated by miR-20b-5p.Hypoxia-induced H9c2 cell apoptosis was reduced after HIF-1α knockdown as shown by the flow cytometry analysis.In conclusion,we identified that miR-20b-5p plays an important role in mediating cardiomyocytes apoptosis under hypoxia,which is mediated by the HIF-1/NF-κB signaling pathway. | Zhongquan Zhou Songwen Chen Zhiming Tian Shibing Deng Xuying Yi Shaning Yang Xuexin Yang Lijun Jin Wanqing Shi | 2020 | Acta Biochimica et Biophysica Sinica2020，52，9： | 2 |
| 19 | ON THE PAR REDUCTION OF MB-OFDM ULTRA-WIDEBAND SIGNALS显示文摘The Peak to Average power Ratio (PAR) of a Multi-Band Orthogonal Frequency-Division Multiplexing (MB-OFDM) Ultra-Wide Band (UWB) signals can be substantially larger than that of single carrier or carrier-less ultra-wideband signals. In this letter, a novel PAR reduction scheme for the MB-OFDM UWB system based on spreading and interleaving is proposed. By spreading the coded bits over each subcarrier in corresponding band and interleaving the spread symbols across all bands, the PAR statistics of the MB-OFDM signals can be improved and the PAR is reduced obviously. In the PAR reduction scheme, there is no loss in transmission data rate or Bit Error Rate (BER) performance decreasing. Since the spreading and interleaving operation are implemented by unitary Hadamard sequences and used for an approach to provide the robustness of the UWB system to narrowband interference, there is no additional implementation burden. Simulation results show that the investigated scheme gives the PAR reduction of 3dB compared with that of the original MB-OFDM signals. | Zhang Shibing Xu Chen | 2006 | Journal of Electronics(China)2006，23，2： | 2 |
| 20 | Experimental investigation and prediction model for UCS loss of unsaturated sandstones under freeze-thaw action显示文摘Sandstone is widely distributed in cold regions and the freeze-thaw deterioration of them has caused many geological engineering disasters.As an important and direct index of frost resistance,the strength loss of sandstones under freeze-thaw actions should be investigated to provide a guidance for the stability assessment of geological engineering.In this research,the UCS(Uniaxial compressive strength)loss of six typical sandstones with different water contents after 0,20,40 and 60 freeze-thaw cycles was measured in the laboratory.The experimental results indicated that the freeze-thaw damage was more serious in sandstones containing high water contents,and the critical saturations for causing a significant loss of UCS under freeze-thaw were 60%-80%for these sandstones.Below this critical saturation,the UCS loss of the sandstones was mainly caused by water weakening rather than freeze-thaw damage.Besides,a developed strength prediction model was proposed by combining the exponential decay function and multiple linear regression method.The initial porosity,elastic modulus and tensile strength of fresh sandstones were a good parameter combination to accurately determine the decay constant in this developed model.The main novelty of this model is that it can accurately and easily estimate the UCS loss of sandstones after any freeze-thaw cycle only using the initial parameters of fresh sandstones,but it does not need to perform freeze-thaw and mechanical strength experiments.This study not only provides an accurate prediction model of UCS under freeze-thaw,but also makes a contribution to better understanding the frost resistance mechanism of sandstones. | Shibing Huang Yingbo He Shilin Yu Chen Cai | 2022 | International Journal of Mining Science and Technology2022，32，1： | 2 |
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