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| 1 | Raindrop energy-powered autonomous wireless hyetometer based on liquid-solid contact electrification显示文摘Triboelectric nanogenerators(TENGs)can directly harvest energy via solid-liquid interface contact electrification,making them very suitable for harvesting raindrop energy and as active rainfall sensors.This technology is promising for realizing a fully self-powered system for autonomous rainfall monitoring combined with energy harvesting/sensing.Here,we report a raindrop energy-powered autonomous rainfall monitoring and wireless transmission system(R-RMS),in which a raindrop-TENG(R-TENG)array simultaneously serves as a raindrop energy harvester and rainfall sensor.At a rainfall intensity of 71 mm/min,the R-TENG array can generate an average short-circuit current,open-circuit voltage,and maximum output power of 15 pA,1800 V,and 325 pW,respectively.The collected energy can be adjusted to act as a stable 2.5 V direct-current source for the whole system by a power management circuit.Meanwhile,the R-TENG array acts as a rainfall sensor,in which the output signal can be monitored and the measured data are wirelessly transmitted.Linder a rainfall intensity of 71 mm/min,the R-RMS can be continuously powered and autonomously transmit rainfall data once every 4 min.This work has paved the way for raindrop energy-powered wireless hyetometers,which have exhibited broad prospects in unattended weather monitoring,field surveys,and the Internet of Things. | Chaoqun Xu Xianpeng Fu Chengyu Li Guoxu Liu Yuyu Gao Youchao Qi Tianzhao Bu Yuanfen Chen Zhong Lin Wang Chi Zhang | 2022 | Microsystems & Nanoengineering2022，8，2： | 2 |
| 2 | Maximum Likelihood Estimation of the Identification Parameters and Its Correction显示文摘By taking the subsequence out of the input-output sequence of a system polluted by white noise, anindependent observation sequence and its probability density are obtained and then a maximum likelihood estimation of theidentification parameters is given. In order to decrease the asymptotic error, a corrector of maximum likelihood (CML)estimation with its recursive algorithm is given. It has been proved that the corrector has smaller asymptotic error thanthe least square methods. A simulation example shows that the corrector of maximum likelihood estimation is of higherapproximating precision to the true parameters than the least square methods. | An Kai, Ma Jiaguang & Fu Chengyu Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610041, P. R. China | 2002 | Journal of Systems Engineering and Electronics2002，13，4： | 2 |
| 3 | High-Efficiency Wastewater Purification System Based on Coupled Photoelectric–Catalytic Action Provided by Triboelectric Nanogenerator显示文摘It is of great importance to explore a creative route to improve the degradation e ciency of organic pollutants in wastewater.Herein,we construct a unique hybrid system by combining self-powered triboelectric nanogenerator(TENG)with carbon dots-TiO_(2)sheets doped three-dimensional graphene oxide photocatalyst(3 DGA@CDs-TNs),which can significantly enhance the degradation e ciency of brilliant green(BG)and direct blue 5 B(DB)owing to the powerful interaction of TENG and 3 DGA@CDs-TNs photocatalyst.The power output of TENG can be applied for wastewater purification directly,which exhibits a selfpowered electrocatalytic technology.Furthermore,the results also verify that TENG can replace conventional electric catalyst to remove pollutants e ectively from wastewater without any consumption.Subsequently,the unstable fragments and the plausible removal pathways of the two pollutants are proposed.Our work sheds light on the development of e cient and sustainable TENG/photocatalyst system,opening up new opportunities and possibilities for comprehensive utilization of random energy. | Shen Shen Jiajia Fu Jia Yi Liyun Ma Feifan Sheng Chengyu Li Tingting Wang Chuan Ning Hongbo Wang Kai Dong Zhong Lin Wang | 2021 | Nano-Micro Letters2021，13，12： | 1 |
| 4 | Electrical properties of Li2O-La2O3-SiO2 electrode glasses after Ta2O5 doping and Ta implantation显示文摘 | Wang P W Wang Chengyu Fu xianping | 2000 | J Mater Sci2000，35，17： | 1 |
| 5 | Acceleration feedback of a CCD-based tracking loop for fast steering mirror显示文摘 | Tan Taog Huang Yongmei Fu Chengyu | 2009 | Optical Engineering2009，48，13： | 1 |
| 6 | Yolk-shell nanoarchitecture for stabilizing a Ce_(2)S_(3)anode显示文摘Rare-earth sulfides are of research interest for lithium-ion batteries(LIBs)due to their abundant lithium intercalation sites and low redox voltage.However,their electrochemical performances are not satisfactory because of poor conductivity and volume change upon electrochemical cycling.Herein,nanoarchitectures ofγ-Ce_(2)S_(3)encapsulated in a hollow mesoporous carbon nanosphere(Ce_(2)S_(3)@HMCS)are fabricated using the self-template strategy combined with the in-sphere sulfuration method and tested as an LIB anode.The void space between the Ce_(2)S_(3)core and the outer layer of the carbon nanosphere has been properly designed and modulated to achieve excellent electrochemical performance in terms of electronic conductivity,reversibility,and rate capability.The reversible capacity of Ce_(2)S_(3)@HMCS is 2.6 times that of the pure Ce_(2)S_(3)anode,which can gradually increase and maintain a capacity of 282 mAh·g^(−1)at a current density of 1 A·g^(-1),and a high Coulombic efficiency(~100%)can be achieved even after 1000 cycles.This good performance is attributed to the unique yolk-shell nanostructure with a highly crystallized and stable Ce3S2 core and volume expansion buffer space upon lithiation/delithiation.Ex situ X-ray diffraction and nuclear magnetic resonance results indicate that the lithiation of Ce_(2)S_(3)@HMCS is an intercalation process.This study represents an important advancement in precise structural design with in-sphere sulfuration and sheds light on a potential direction for highperformance lithium storage. | Kanglong Hui Jipeng Fu Jie Liu Yongjin Chen Xiang Gao Tian Gao Qi Wei Chengyu Li Hongjie Zhang Mingxue Tang | 2021 | Carbon Energy2021，3，5： | 0 |
| 7 | Hybrid coating SnO_(2)for enhanced Li ions storage显示文摘Anode SnO_(2)in lithium-ion batteries suffers from volume expansion and agglomeration.Here,the SnO_(2)nanoparticles are hybrided with ZrO_(2)particles by the support of carbon nanotube networks.The obtained SnO_(2)/C/ZrO_(2)composite shows improved electrochemical performances.Investigations reveal that the carbon nanotubes shorten the transmission path of electrons and Li^(+) ions.Ball milling with ZrO_(2)promotes the formation of nanosized SnO_(2)to weaken the internal strain change,being beneficial to buffering volume change during electrochemical cycling afterwards.High-resolution 6.7Li NMR investigations indicate that conversion and alloying reactions are stepwise involved for SnO_(2)/C/ZrO_(2)anode.The strategy of designing SnO_(2)/C/ZrO_(2)composite from the morphology-controlled metal-organic frameworks for energy storage widens the possibility to fabricate promising materials with enhanced performances. | Yanan Gao Jie Liu Chenjie Lou Hailiang Geng Jipeng Fu Chengyu Li Yongjin Chen Cong Wang Wenda Zhang Xiaojun Kuang Yifan Liu Xiang Gao Mingxue Tang | 2023 | Chinese Chemical Letters2023，34，12： | 0 |
| 8 | 3D-printed Lunar regolith simulant-based geopolymer composites with bio-inspired sandwich architectures显示文摘Over time,natural materials have evolved to be lightweight,high-strength,tough,and damage-tolerant due to their unique biological structures.Therefore,combining biological inspiration and structural design would provide traditional materials with a broader range of performance and applications.Here,the application of an ink-based three-dimensional(3D)printing strategy to the structural design of a Lunar regolith simulant-based geopolymer(HIT-LRS-1 GP)was first reported,and high-precision carbon fiber/quartz sand-reinforced biomimetic patterns inspired by the cellular sandwich structure of plant stems were fabricated.This study demonstrated how different cellular sandwich structures can balance the structure–property relationship and how to achieve unprecedented damage tolerance for a geopolymer composite.The results presented that components based on these biomimetic architectures exhibited stable non-catastrophic fracture characteristics regardless of the compression direction,and each structure possessed effective damage tolerance and anisotropy of mechanical properties.The results showed that the compressive strengths of honeycomb sandwich patterns,triangular sandwich patterns,wave sandwich patterns,and rectangular sandwich patterns in the Y-axis(Z-axis)direction were 15.6,17.9,11.3,and 20.1 MPa(46.7,26.5,23.8,and 34.4 MPa),respectively,and the maximum fracture strain corresponding to the above four structures could reach 10.2%,6.7%,5.8%,and 5.9%(12.1%,13.7%,13.6%,and 13.9%),respectively. | Siqi Ma Yuqi Jiang Shuai Fu Peigang He Chengyue Sun Xiaoming Duan Dechang Jia Paolo Colombo Yu Zhou | 2023 | Journal of Advanced Ceramics2023，12，3： | 0 |
| 9 | Coupling boron-modulated bimetallic oxyhydroxide with photosensitive polymer enable highly-active and ultra-stable seawater splitting显示文摘Seawater photoelectrolysis is showing huge potential in green energy conversion field,yet it is still a formidable challenge to develop one catalyst that can drive the electrolysis reaction stably,economically and efficiently.Motivated by this point,the inorganic–organic hybridization strategy is proposed to insitu construct one hierarchical electrode via concurrent electroless plating and polymerization,which assures the growth of boron-modulated nickel–cobalt oxyhydroxide nanoballs and photosensitive polyaniline nanochains on the self-supporting Ti-based foil(B-Co Ni OOH/PANI@TiO_(2)/Ti).Upon inducing photoelectric effect(PEE),the designed target electrode delivers overpotentials as low as 196 and 398 mV at 100 mA cm^(-2)for hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),respectively,corresponding to an activity enhancement by about 15%as compared to those without PEE.Inspiringly,when served as bifunctional electrocatalysts for overall seawater electrolysis,it can stably maintain at 200 mA cm^(-2)with negligible decay over 72 h.Further analysis reveals that the exceptional catalytic performance can be credit to the B-CoNiOOH,polyaniline(PANI)and TiO_(2)subunit coupling-induced physically and chemically synergistic catalysis effect such as admirable composition stability,photoelectric function and adhesion capability.The finding in this contribution may trigger much more broad interest to the novel hybrid catalysts consisting of photosensitive polymer and transition metal-based electrocatalysts. | Weiju Hao Chengyu Fu Yingming Wang Kui Yin Hongyuan Yang Ruotao Yang Ziliang Chen | 2022 | Journal of Energy Chemistry2022，，12： | 0 |
| 10 | d(GC)10 sequence within promoter region enhances the promoter activity in Saccharomyces cerevisiae显示文摘Saccharomyces cerevisiae is one of the most widely used host organisms for recombinant protein production due to its ease of genetic manipulation and rapid growth.What's more,yeast expression systems are economical and do not contain allergens.So S.cerevisiae is used for the commercial production of pharmaceutical protein products such as insulin and some vaccines,including papillomavirus and hepatitis [1].However,numerous cases of plasmid instability, low protein yields and the hyperglycosylations of proteins limit the number of commercial products. | Shenghe Huang Qiang Fu Feng Cheng Yizhou Wan Wenjun Quan Chengyu Hu Dongming Li | 2018 | Acta Biochimica et Biophysica Sinica2018，50，12： | 0 |
| 11 | Efficacy of repeated intravenous esketamine in adolescents with anxious versus non-anxious depression显示文摘Background Patients with anxious major depressive disorder(MDD)are more likely to have poorer outcomes than those with non-anxious MDD.However,the effect of esketamine on adolescents with anxious versus non-anxious MDD has remained unknown.Aims We compared the efficacy of esketamine in adolescents with MDD and suicidal ideation,both anxious and non-anxious.Methods Fifty-four adolescents with anxious(n=33)and non-anxious(n=21)MDD received three infusions of esketamine 0.25mg/kg or active-placebo(midazolam 0.045 mg/kg)over 5 days,with routine inpatient care and treatment.Suicidal ideation and depressive symptoms were assessed using the Columbia Suicide Severity Rating Scale and the Montgomery-Asberg Depression Rating Scale.Multiple-sample proportional tests were used to compare the differences between groups on treatment outcomes 24 hours after the final infusion(day 6,primacy efficacy endpoint)and throughout the 4-week post-treatment(days 12,19 and 33).Results In subjects who received esketamine,a greater number of patients in the non-anxious group than the anxious group achieved antisuicidal remission on day 6(72.7%vs 18.8%,p=0.015)and day 12(90.9%vs 43.8%,p=0.013),and the non-anxious group had a higher antidepressant remission rate compared with the anxious group on day 33(72.7%vs 26.7%,p=0.045).No significant differences in treatment outcomes were observed between the anxious and non-anxious groups at other time points.Conclusions Three infusions of esketamine as an adjunct to routine inpatient care and treatment had a greater immediate post-treatment antisuicidal effect in adolescents with non-anxious MDD than in those with anxious MDD;however,this benefit was temporary and was not maintained over time. | Xiaofeng Lan Chengyu Wang Fan Zhang Haiyan Liu Ling Fu Weicheng Li Yanxiang Ye Zhibo Hu Siming Mai Yuping Ning Yanling Zhou | 2023 | General Psychiatry2023，36，3： | 0 |
| 12 | Error-space estimate method for generalized synergic target tracking显示文摘To improve the tracking accuracy and stability of an optic-electronic target tracking system,the concept of generalized synergic target and an algorithm named error-space estimate method is presented.In this algorithm,the motion of target is described by guide data and guide errors,and then the maneuver of the target is separated into guide data and guide errors to reduce the maneuver level.Then state estimate is implemented in target state-space and error-space respectively,and the prediction data of target position are acquired by synthesizing the filtering data from target state-space according to kinematic model and the prediction data from errorspace according to guide error model.Differing from typical multi-model method,the kinematic and guide error models work concurrently rather than switch between models.Experiment results show that the performance of the algorithm is better than Kalman filter and strong tracking filter at the same maneuver level. | Ming CEN Chengyu FU Ke CHEN Xingfa LIU | 2009 | Frontiers of Electrical and Electronic Engineering in China2009，4，1： | 0 |
| 13 | Dual-enhancement of chromaticity and thermal stability:In-situ synthesis of core-shell γ-Ce_(2)S_(3) @CePO_(4) configuration显示文摘Non-toxic rare earth(RE) composite materials are promising and active in optoelectronic fields,such as pigment.In this work,Na ions doped γ-Ce_(2) S_(3) pigments were synthesized by solid-phase vulcanization and followed by in-situ synthesis to prepare an outer layer of CePO_(4) film.The characterizations of X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),solid state nuclear magnetic resonance(NMR) indicate that Na-dopedγ-Ce_(2) S_(3) and CePO_(4) uniformly and tightly coated core-shell structure was successfully synthesized.The thermogravimetric analysis(TG) and reflection spectrum(RS) reveal that the CePO_(4) coating significantly improves the colorant and thermal stability performance of γ-Ce_(2) S_(3) .The excellent color quality of γ-Ce_(2) S_(3) @CePO_(4)(L*=45.16,a*=55.94.b*=44.53) is achieved and the red color(L*=43.82,a*=49.79,b*=38.04) is still retained even if the sample is heated in air at 400℃ for 30 min. | Kanglong Hui Wei Dong Jipeng Fu Mingxue Tang Qi Wei Chengyu Li Hongjie Zhang | 2022 | Journal of Rare Earths2022，40，5： | 0 |
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