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| 1 | Progress in wearable electronics/photonics—Moving toward the era of artificial intelligence and internet of things显示文摘The past few years have witnessed the significant impacts of wearable electronics/photonics on various aspects of our daily life,for example,healthcare monitoring and treatment,ambient monitoring,soft robotics,prosthetics,flexible display,communication,human-machine interactions,and so on.According to the development in recent years,the next-generation wearable electronics and photonics are advancing rapidly toward the era of artificial intelligence(AI)and internet of things(IoT),to achieve a higher level of comfort,convenience,connection,and intelligence.Herein,this review provides an opportune overview of the recent progress in wearable electronics,photonics,and systems,in terms of emerging materials,transducing mechanisms,structural configurations,applications,and their further integration with other technologies.First,development of general wearable electronics and photonics is summarized for the applications of physical sensing,chemical sensing,humanmachine interaction,display,communication,and so on.Then self-sustainable wearable electronics/photonics and systems are discussed based on system integration with energy harvesting and storage technologies.Next,technology fusion of wearable systems and AI is reviewed,showing the emergence and rapid development of intelligent/smart systems.In the last section of this review,perspectives about the future development trends of the next-generation wearable electronics/photonics are provided,that is,toward multifunctional,self-sustainable,and intelligent wearable systems in the AI/IoT era. | Qiongfeng Shi Bowei Dong Tianyiyi He Zhongda Sun Jianxiong Zhu Zixuan Zhang Chengkuo Lee | 2020 | InfoMat2020，2，6： | 17 |
| 2 | Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells显示文摘 | Huifeng Yao Deping Qian Hao Zhang Yunpeng Qin Bowei Xu Yong Cui Runnan Yu Feng Gao Jianhui Hou | 2018 | Chinese Journal of Chemistry2018，36，6： | 8 |
| 3 | Zacopride selectively activates the Kir2.1 channel via a PKA signaling pathway in rat cardiomyocytes显示文摘We recently reported that zacopride is a selective inward rectifier potassium current (IK1 ) channel agonist, suppressing ventricular arrhythmias without affecting atrial arrhythmias. The present study aimed to investigate the unique pharmacological properties of zacopride. The whole-cell patch-clamp technique was used to study IK1 currents in rat atrial myocytes and Kir2.x currents in human embryonic kidney (HEK)-293 cells transfected with inward rectifier potassium channel (Kir)2.1, Kir2.2, Kir2.3, or mutated Kir2.1 (at phosphorylation site S425L). Western immunoblots were performed to estimate the relative protein expression levels of Kir2.x in rat atria and ventricles. Results showed that zacopride did not affect the IK1 and transmembrane potential of atrial myocytes. In HEK293 cells, zacopride increased Kir2.1 homomeric channels by 40.7%±9.7% at 50 mV, but did not affect Kir2.2 and Kir2.3 homomeric channels, and Kir2.1-Kir2.2, Kir2.1-Kir2.3 and Kir2.2-Kir2.3 heteromeric channels. Western immunoblots showed that similar levels of Kir2.3 protein were expressed in rat atria and ventricles, but atrial Kir2.1 protein level was only 25% of that measured in the ventricle. In addition, 5-hydroxytryptamine (5-HT) 3 receptor was undetectable, whereas 5-HT 4 receptor was weakly expressed in HEK293 cells. The Kir2.1-activating effect of zacopride in these cells was abolished by inhibition of protein kinase A (PKA), but not PKC or PKG. Furthermore, zacopride did not activate the mutant Kir2.1 channel in HEK293 cells but selectively activated the Kir2.1 homomeric channel via a PKA-dependent pathway, independent to that of the 5-HT receptor. | ZHANG Li LIU QingHua LIU ChengFang ZHAI XuWen FENG QiLong XU RuiLing CUI XiangLi ZHAO ZhiQing CAO JiMin WU BoWei | 2013 | Science China(Life Sciences)2013，56，9： | 7 |
| 4 | Organic photovoltaic cell with 17% efficiency and superior processability显示文摘The development of organic photoactive materials,especially the newly emerging non-fullerene electron acceptors(NFAs),has enabled rapid progress in organic photovoltaic(OPV)cells in recent years.Although the power conversion efficiencies(PCEs)of the top-performance OPV cells have surpassed 16%,the devices are usually fabricated via a spin-coating method and are not suitable for large-area production.Here,we demonstrate that the fine-modification of the flexible side chains of NFAs can yield 17%PCE for OPV cells.More crucially,as the optimal NFA has a suitable solubility and thus a desirable morphology,the high efficiencies of spin-coated devices can be maintained when using scalable blade-coating processing technology.Our results suggest that optimization of the chemical structures of the OPV materials can improve device performance.This has great significance in larger-area production technologies that provide important scientific insights for the commercialization of OPV cells. | Yong Cui Huifeng Yao Ling Hong Tao Zhang Yabing Tang Baojun Lin Kaihu Xian Bowei Gao Cunbin An Pengqing Bi Wei Ma Jianhui Hou | 2020 | National Science Review2020，7，7： | 7 |
| 5 | Tea polyphenol-gut microbiota interactions:hints on improving the metabolic syndrome in a multi-element and multi-target manner显示文摘The metabolic syndrome(MS)has become one of the main problems in public health.Tea polyphenols(TPs),the main bioactive components of tea,has been claimed to have the potential to regulate metabolism and effectively prevent or mitigate the MS.However,many studies into the effects of TPs on MS have provided conflicting findings and the underlying mechanism has been elusive.The predominant TPs in unfermentedand and fermented tea are catechins and oxidized polyphenols(theaflavins and thearubigins),both of which have low bioavailability and reach the colon where most gut microbes inhabit.Gut microbiota has been demonstrated to be tightly associated with host metabolism.The interactions between TPs and gut microbiota will lead to the alterations of gut microbiota composition and the production of metabolites including short chain fatty acids,bile acids,amino acids and TPs derived metabolites,accordingly exerting their biological effects both locally and systemically.This review highlighted the contribution of metabolites and specific gut bacteria in the process of TPs intervention on the MS and further discuss how TPs impact the MS via gut microbiota from the viewpoint of gut organ/tissue axis. | Hui Ma Yaozhong Hu Bowei Zhang Zeping Shao Eugeni Roura Shuo Wang | 2022 | Food Science and Human Wellness2022，11，1： | 5 |
| 6 | Rational design of photoelectrodes for photoelectrochemical water splitting and CO2 reduction显示文摘Solar energy has promising potential for building sustainable society.Conversion of solar energy into solar fuels plays a crucial role in overcoming the intennittent nature of the renewable energy source.A pliotoclectrochernical (PEC) cell that employs semiconductor as photoelectrode to split water into hydrogen or fixing carbon dioxide (CO2) into hydrocarbon fuels provides great potential to achieve zcrocarbon-oiiiission society.A proper design of those semiconductor photoelectrodes thus directly influences the performance of the PEC cell.In this review,we investigate the strategics that have been put towards the design of efficiont photoelectrodes for PEC water splitting and CO2 reduction in recent years and provide sonic future design directions toward noxt-goneration FEC cells for water splitting and CO2 reduction. | Yu Hui Lui Bowei Zhang Shan Hu | 2019 | Frontiers of physics2019，14，5： | 4 |
| 7 | Deep learning-enabled triboelectric smart socks for IoT-based gait analysis and VR applications显示文摘The era of artificial intelligence and internet of things is rapidly developed by recent advances in wearable electronics.Gait reveals sensory information in daily life containing personal information,regarding identification and healthcare.Current wearable electronics of gait analysis are mainly limited by high fabrication cost,operation energy consumption,or inferior analysis methods,which barely involve machine learning or implement nonoptimal models that require massive datasets for training.Herein,we developed low-cost triboelectric intelligent socks for harvesting waste energy from low-frequency body motions to transmit wireless sensory data.The sock equipped with self-powered functionality also can be used as wearable sensors to deliver information,regarding the identity,health status,and activity of the users.To further address the issue of ineffective analysis methods,an optimized deep learning model with an end-to-end structure on the socks signals for the gait analysis is proposed,which produces a 93.54%identification accuracy of 13 participants and detects five different human activities with 96.67%accuracy.Toward practical application,we map the physical signals collected through the socks in the virtual space to establish a digital human system for sports monitoring,healthcare,identification,and future smart home applications. | Zixuan Zhang Tianyiyi He Minglu Zhu Zhongda Sun Qiongfeng Shi Jianxiong Zhu Bowei Dong Mehmet Rasit Yuce Chengkuo Lee | 2020 | npj Flexible Electronics2020，4，1： | 4 |
| 8 | Effectiveness of Nature Reserves for Natural Forests Protection in Tropical Hainan: a 20 Year Analysis显示文摘The establishment of nature reserves is a key approach for biodiversity conservation worldwide. However, there is a lack of unified methodology to evaluate the effectiveness of nature reserves, particularly in China, the world′s most populous nation supporting some of the most valuable biodiversity hotspots in the world. In this study, we conducted a long-term and large-scale analysis of the effectiveness of 20 of the earliest nature reserves established in Hainan Province, an island home to among the highest concentration of plants and animals in China. Remote sensing imagery from 1988, 1998, and 2008 were analyzed to investigate the temporal and spatial changes of natural forests in these nature reserves and surrounding areas. We also conducted transition matrix analysis and principle component analysis to identify the driving factors that affect the protection effectiveness of nature reserves. The results were as follows: 1) During the 20-year period from 1988 to 2008, natural forests coverage of the 20 studied nature reserves dropped 2.34 percentage points, whereas the natural forests coverage dropped 11.31 percentage points in a 0–5 km outside reserve buffer and 9.36 percentage points in a 5–10 km outside reserve buffer, indicating a significant inhibitory effect of the nature reserves on the loss of natural forests. 2) Natural forests coverage dropped in 60% of the studied nature reserves during the 20-year period, suggesting a poor protection effectiveness of these reserves, while the coverage proportion showed some increase(0%/yr–5%/yr) in other reserves. 3) Expansion of rubber and pulp forests as part of a booming economy were the main factors affecting the effectiveness of the nature reserves for conserving natural forests in Hainan Province. The results of this study provide an important empirical basis for the protection of natural forests in Hainan Province, which can be used as a blueprint for nature reserve evaluation in other places in China. | YU Bowei CHAO Xuelin ZHANG Jindong XU Weihua OUYANG Zhiyun | 2016 | Chinese Geographical Science2016，26，2： | 3 |
| 9 | Enhancing the mechanical and anticorrosion properties of 316L stainless steel via a cathodic plasma electrolytic nitriding treatment with added PEG显示文摘A cathodic plasma electrolytic nitriding(CPEN)treatment with a urea aqueous solution was performed on 316L stainless steel to rapidly improve its surface properties in this work.Test results show that the PEG2000 macromolecules increased the nitriding energy via enhancing the ability to bond the produced gas film to the metal/electrolyte interface.The cross-sectional morphologies indicate that a thick nitrided layer was obtained when the urea concentration was 543 g I^-1,corresponding to a Vickers hardness 450 HV(0.1),which was 3.5 times larger than that of the substrate.The nitrided layer mainly contained expanded austenite(γN),oxides and iron nitrides(e.g.,Fe3O4 and FeN(0.076)).In terms of its performance,coefficient of friction(COF)of the nitride layer decreased to nearly two-thirds that of the untreated layer,and the passivation current densities of the nitrided sample in a 3.5%NaCl solution decreased by an order of magnitude compared to that of the substrate.Therefore,the approach presented herein provides an attractive way to modify the effect of CPEN in a urea aqueous solution. | Tianyi Zhang Junsheng Wu Lei Jin Zhan Zhang Wan Rong Bowei Zhang Yi Wang Yedong He Wei Liu Xiaogang Li | 2019 | Journal of Materials Science & Technology2019，35，11： | 3 |
| 10 | Incorporation of nano/micron-SiC particles in Ni-based composite coatings towards enhanced mechanical and anti-corrosion properties显示文摘Ni-based composite coatings incorporated with nano/micron SiC particles were fabricated via electrochemical co-deposition in Watts bath,followed by the evaluation of their mechanical and anti-corrosion properties.The micrographic observations suggest that the SiC particles with various sizes can be well incorporated to the Ni substrate.X-ray diffraction(XRD)patterns indicate that SiC particles with smaller sizes could weaken the preferential growth of Ni along(200)facet.In addition,it is found that the incorporated SiC particles with medium micron sizes(8 and 1.5μm)could significantly enhance the micro-hardness of the Ni composite coatings.Nevertheless,electrochemical measurements demonstrate that micron-sized SiC particles would weaken the corrosion resistance of Ni composite coatings ascribed to the structure defects induced.In contrast,the combined incorporation of nanosized(50 nm)SiC particles with medium micron(1.5μm)ones is capable of promoting the compactness of the composite coatings,which is beneficial to the long-term corrosion resistance with negligible micro-hardness loss. | Bowei Zhang Qiao Zhang Zhan Zhang Kui Xiao Qiong Yao Guojia Ma Gang Sun Junsheng Wu | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，1： | 2 |
| 11 | A soft actor-critic deep reinforcement learning method for multi-timescale coordinated operation of microgrids显示文摘This paper develops a multi-timescale coordinated operation method for microgrids based on modern deep rein-forcement learning.Considering the complementary characteristics of different storage devices,the proposed approach achieves multi-timescale coordination of battery and supercapacitor by introducing a hierarchical two-stage dispatch model.The first stage makes an initial decision irrespective of the uncertainties using the hourly predicted data to minimize the operational cost.For the second stage,it aims to generate corrective actions for the first-stage decisions to compensate for real-time renewable generation fluctuations.The first stage is formulated as a non-convex deterministic optimization problem,while the second stage is modeled as a Markov decision process solved by an entropy-regularized deep reinforcement learning method,i.e.,the Soft Actor-Critic.The Soft Actor-Critic method can efficiently address the exploration-exploitation dilemma and suppress variations.This improves the robustness of decisions.Simulation results demonstrate that different types of energy storage devices can be used at two stages to achieve the multi-timescale coordinated operation.This proves the effectiveness of the proposed method. | Chunchao Hu Zexiang Cai Yanxu Zhang Rudai Yan Yu Cai Bowei Cen | 2022 | Protection and Control of Modern Power Systems2022，7，1： | 2 |
| 12 | An Early Warning System for Curved Road Based on OV7670 Image Acquisition and STM32显示文摘Nowadays,the number of vehicles in China has increased significantly.The increase of the number of vehicles has also led to the increasingly complex traffic situation and the urgent safety measures in need.However,the existing early warning devices such as geomagnetic,ultrasonic and infrared detection have some shortcomings like difficult installation and maintenance.In addition,geomagnetic detection will damage the road surface,while ultrasonic and infrared detection will be greatly affected by the environment.Considering the shortcomings of the existing solutions,this paper puts forward a solution of early warning for vehicle turning meeting based on image acquisition and microcontrollers.This solution combines image acquisition and processing technology,which uses image sensor to perceive traffic condition and image data analysis algorithm to process perceived image,and then utilize LED display screen to issue an early warning. | Xiaoliang Wang Wenhua Song Bowei Zhang Brandon Mausler Frank Jiang | 2019 | Computers, Materials & Continua2019，，4： | 2 |
| 13 | Crystal facet-dependent electrocatalytic performance of metallic Cu in CO_(2)reduction reactions显示文摘Developing high-performance electrocatalysts for CO_(2) reduction reaction(CO_(2)RR)is crucial since it is beneficial for environmental protection and the resulting value-add chemical products can act as an alternative to fossil feedstocks.Nonetheless,the direct reduction of CO_(2) into long-chain hydrocarbons and oxygenated hydrocarbons with high selectivity remains challenging.Copper(Cu)shows a distinctive advantage that it is the only pure metal catalyst for reducing CO_(2) into multi-carbon(C_(2+))products and the certain facets(e.g.,(100),(111),(111))of Cu nanocrystals exhibit relatively low energy barriers for the formation of specific products(e.g.,CO,HCOOH,CH_(4),C_(2)H_(4),C_(2)H_(5)OH,and other C_(2+) products).Therefore,extensive studies have been carried out to explore the relationship between the facets of Cu nanocrystals and corresponding catalytic products.In this review,we will discuss the crystal facet-dependent electrocatalytic CO_(2)RR performance in metallic Cu catalysts,meanwhile,the detailed reaction mechanisms will be systematically summarized.In addition,we will provide a personal perspective for the future research directions in this emerging field.We believe this review is helpful to guide the design of high-selectivity Cu-based electrocatalysts for CO_(2)RR. | Hao Zhang Caihong He Sumei Han Zeyang Du Ling Wang Qinbai Yun Wenbin Cao Bowei Zhang Ya-Hui Tian Qipeng Lu | 2022 | Chinese Chemical Letters2022，33，8： | 2 |
| 14 | A ternary organic solar cell with 300 nm thick active layer shows over 14% efficiency显示文摘In order to meet the requirements for making organic solar cells(OSCs)through solution printing techniques,great efforts have been devoted into developing high performance OSCs with relatively thicker active layers.In this work,a thick-film(300 nm)ternary OSC with a power conversion efficiency of 14.3%is fabricated by introducing phenyl-C61-butyric-acid-methyl ester(PC61BM)into a PBDB-T-2Cl:BTP-4 F host blend.The addition of PC61BM is found to be helpful for improving the hole and electron mobilities,and thus facilitates charge transport as well as suppresses charge recombination in the active layers,leading to the improved efficiencies of OSCs with relatively thicker active layers.Our results demonstrate the feasibility of employing fullerene derivative PC61BM to construct a high-efficiency thick-film ternary device,which would promote the development of thick layer ternary OSCs to fulfill the requirements of future roll to roll production. | Lijiao Ma Ye Xu Yunfei Zu Qing Liao Bowei Xu Cunbin An Shaoqing Zhang Jianhui Hou | 2020 | Science China Chemistry2020，63，1： | 2 |
| 15 | Tribological performance under different environments of Ti-C-N composite films for marine wear-resistant parts显示文摘The need for reducing the wear in mechanical parts used in the industry makes self-lubricant films one of the sustainable solutions to achieve long-term protection under different environmental conditions.The purpose of this work is to study the influence of C additions on the tribological behavior of a magnetron-sputtered TiN film in air,water,and seawater.The results show that the addition of C into the TiN binary film induced a new amorphous phase,and the films exhibited a dual phase of fcc(face-centered cubic)-TiN and amorphous carbon.The antifriction and wear-resistance properties were enhanced in air and water by adding 19.1at%C.However,a further increase in the C concentration improved anti-frictional properties but also led to higher wear rates.Although the amorphous phase induced microbatteries and accelerated the corrosion of TiN phases in seawater,the negative abrasion state was detected for all Ti-C-N films due to the adhesion of the tribocorrosion debris on the wear track. | Hongbo Ju Rui Zhou Jing Luan Ch Sateesh Kumar Lihua Yu Junhua Xu Junfeng Yang Bowei Zhang Filipe Fernandes | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，1： | 1 |
| 16 | Cobalt tungsten phosphide with tunable W-doping as highly efficient electrocatalysts for hydrogen evolution reaction显示文摘It has been of interest in seeking electrocatalysts that could exercise equally high-efficient and durable hydrogen evolution upon nonselective electrolytes in both acidic and alkaline environments. Herein, we report a facile strategy to fabricate cobalt tungsten phosphides (CoxW2−xP2/C) hollow polyhedrons with tunable composition based on metal-organic frameworks (MOFs) template method. By the deliberate control of W doping, the synthesized catalyst with the composition of Co0.9W1.1P2/C is found to be able to achieve a current density of 10 mA·cm^(−2) at overpotentials of 35 and 54 mV in acidic and alkaline media, respectively. This combined electrochemical property stands atop the state-of-the-art electrocatalyst counterparts. To unveil the peculiar behavior of the structure, density functional theory (DFT) calculation was implemented and reveals that the surface W-doping facilitates the optimization of hydrogen absorption free energy (ΔGH*) as well as the thermodynamic and kinetics barriers for water dissociation, which is coupled with the hollow structure of Co-W phosphides, leading to the prominent HER catalytic performance. | Bowei Zhang Chaojiang Li Jun Hu Dongdong Peng Kang Huang Junsheng Wu Zhong Chen Yizhong Huang | 2021 | Nano Research2021，14，11： | 1 |
| 17 | Optimizing polymer aggregation and blend morphology for boosting the photovoltaic performance of polymer solar cells via a random terpolymerization strategy显示文摘Compared to regular conjugated polymers,the random conjugated terpolymers are usually not beneficial to achieve highly efficient non-fullerene(NF)-based polymer solar cells(PSCs)due to their disordered chemical structures.In this work,we report two random terpolymer donors(PBNB80 and PBNB50)by tuning the molar ratio of electron-accepting units of 1,3-di(thiophen-2-yl)naphtho[2,3-c]thiophene-4,9-dione(NTD)and 1,3-bis(4-chlorothiophen-2-yl)-4 H,8 H-benzo[1,2-c:4,5-c’]dithiophene-4,8-dione(ClBDD),at the same time,the parent polymers(PBNB100 and PBNB00)are also compared to study.These four polymer donors exhibit similar optical bandgaps and gradually deepen highest occupied molecular orbital levels.Importantly,aggregation and self-organization properties of the random terpolymer donors are optimized,which result in the better morphology and crystal coherence length after blending with NF acceptor of BO-4 Cl.Particularly,a PBNB80:BO-4 Cl blend forms an optimal nanoscale phase-separation morphology,thereby producing an outstanding power conversion efficiency of 16.0%,which is much higher than those(12.8%and 10.7%)of their parent binary polymer donor-based devices.This work demonstrates that rational using terpolymerization strategy to prepare random terpolymer is a very important method to achieve highly efficient NF-PSCs. | Tao Zhang Cunbin An Qianglong Lv Jinzhao Qin Yong Cui Zhong Zheng Bowei Xu Shaoqing Zhang Jianqi Zhang Chang He Jianhui Hou | 2021 | Journal of Energy Chemistry2021，30，8： | 1 |
| 18 | Comb type pilot aided channel estimation in OFDM systems with transmit diversity显示文摘 | SONG Bowei GUI Lin ZHANG Wenjun | 2006 | IEEE Trans Broadcasting2006，52，1： | 1 |
| 19 | Crude-oil hydrocarbon composition characteristics and oil viscosity prediction in the northern Songliao Basin显示文摘Crude oil hydrocarbon composition characteristics and oil viscosity prediction are important bases in petroleum exploration.A total of 54 oil/heavy-oil samples and 17 oil sands were analyzed and quantified using both comprehensive 2D gas chromatography(GC×GC)and comprehensive 2D gas chromatography/time-of-flight mass spectrometry(GC×GC/TOFMS).The results show that crude oil in the West slope is mainly heavy oil and its hydrocarbon composition is characterized overall by paraffins>mono-aromatics>naphthenes>non-hydrocarbons>di-aromatics>tri-aromatics>tetra-aromatics.Aromatics are most abundant and non-hydrocarbons are least abundant,whilst content differences among paraffins,naphthenes,aromatics,and non-hydrocarbons are less than 15%.There are two types of heavy oil,secondary type and mixing type.Biodegradation is the main formation mechanism of heavy oil.Biodegradation levels cover light biodegradation,moderate biodegradation,and severe biodegradation.With increasing biodegradation,paraffin content decreases while contents of aromatics and nonhydrocarbons increase.In contrast,naphthene content increases first and then decreases with increasing biodegradation.In severe biodegradation stage,naphthenes decrease more quickly than aromatics and non-hydrocarbons.This provides a new method for studying oil/heavy-oil biodegradation mechanism and biodegradation resistance of different hydrocarbons at different biodegradation stages.In the Longhupao-Daan terrace and Qijia-Gulong depression,most crude oil is conventional oil.Its composition is dominated by paraffins with the lowest content of aromatics.In some casual oil wells from the Longhupao-Daan terrace,crude oil from Saertu oil reservoirs is moderately biodegraded whereas crude oil from Putaohua oil reservoir is lightly biodegraded.Chemical parameters using saturate hydrocarbons and aromatics are usually not suitable for determining organic type and thermal maturity of biodegraded oil,especially of moderately or severely biodegraded oil,whilst Ts/(Ts+Tm)ratio can be used to determine thermal maturity of both conventional crude oil and heavy oil. | ZHANG JuHe FENG ZiHui FANG Wei HUO QiuLi ZHANG Kun LI JingKun ZENG HuaSen ZHANG BoWei | 2014 | Science China Earth Sciences2014，57，2： | 1 |
| 20 | Comb type pilot aided channel estimation in OFDM systems with transmit diversity显示文摘 | LIN GUI ZHANG WENJUN | 2006 | IEEE Transactions on Broadcasting2006，51，1： | 1 |
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