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| 1 | Performance of the Seasonal Forecasting of the Asian Summer Monsoon by BCC_CSM1.1(m)显示文摘This paper provides a comprehensive assessment of Asian summer monsoon prediction skill as a function of lead time and its relationship to sea surface temperature prediction using the seasonal hindcasts of the Beijing Climate Center Climate System Model, BCC CSM1.1(m). For the South and Southeast Asian summer monsoon, reasonable skill is found in the model's forecasting of certain aspects of monsoon climatology and spatiotemporal variability. Nevertheless, deficiencies such as significant forecast errors over the tropical western North Pacific and the eastern equatorial Indian Ocean are also found. In particular, overestimation of the connections of some dynamical monsoon indices with large-scale circulation and precipitation patterns exists in most ensemble mean forecasts, even for short lead-time forecasts.Variations of SST, measured by the first mode over the tropical Pacific and Indian oceans, as well as the spatiotemporal features over the Ni no3.4 region, are overall well predicted. However, this does not necessarily translate into successful forecasts of the Asian summer monsoon by the model. Diagnostics of the relationships between monsoon and SST show that difficulties in predicting the South Asian monsoon can be mainly attributed to the limited regional response of monsoon in observations but the extensive and exaggerated response in predictions due partially to the application of ensemble average forecasting methods. In contrast, in spite of a similar deficiency, the Southeast Asian monsoon can still be forecasted reasonably, probably because of its closer relationship with large-scale circulation patterns and El Nino–Southern Oscillation. | LIU Xiangwen WU Tongwen YANG Song JIE Weihua NIE Suping LI Qiaoping CHENG Yanjie LIANG Xiaoyun | 2015 | Advances in Atmospheric Sciences2015，32，8： | 25 |
| 2 | A miniature liquid helium temperature JT cryocooler for space application显示文摘Along with the development of space science and technology,miniature liquid helium temperature long life cryocooler is a focus subject in cryogenic study.Since it is the precondition of space detection researches,institutions of space in many countries do the research on it.In this article,we designed a compound cooling system.A three-stage high frequency thermal coupled pulse tube cryocooler was used to precool a Joule-Thomson(JT)cryocooler.This system has no moving parts at low temperatures and is hence suitable for space operation.Liquid helium temperature was successfully achieved in both open loop and closed cycle experiments.In the closed cycle experiment,when 473 W electric power was inputted,the cooling system reached a no-load temperature of 4.4 K,and a cooling capacity of 11.6 mW was provided at 4.54 K.It is the first miniature liquid helium temperature JT cryocooler in China and the research achievement paves a way for the space application of ultra-long wave infrared detection and THz technologies. | QUAN Jia ZHOU ZhenJun LIU YanJie LI JianGuo MA YueXue LIANG JingTao | 2014 | Science China(Technological Sciences)2014，57，11： | 16 |
| 3 | Bone marrow mesenchymal stem cell transplantation for treatment of spinal cord injury An in vivo magnetic resonance imaging tracking study显示文摘Non-invasive tracing in vivo can be used to observe the migration and distribution of grafted stem cells,and can provide experimental evidence for treatment.This study utilized adenovirus-carrying enhanced green fluorescent protein(AD5/F35-eGFP) and superparamagnetic iron oxide(SPIO)-labeled bone marrow mesenchymal stem cells(BMSCs).BMSCs,double-labeled by AD5/F35-eGFP and SPIO,were transplanted into rats with spinal cord injury via the subarachnoid space.MRI tracing results demonstrated that BMSCs migrated to the injured spinal cord over time(T2 hypointensity signals).This result was verified by immunofluorescence.These results indicate that MRI can be utilized to trace in vivo the SPIO-labeled BMSCs after grafting. | Yu Liu Boai Zhang Yi Song Yubin Deng Yanjie Jia Qiyong Gong | 2011 | Neural Regeneration Research2011，6，13： | 14 |
| 4 | 4 K high frequency pulse tube cryocooler used for terahertz space application显示文摘Terahertz(THz) frequency region, defined from0.1 to 10 THz, is an important frequency band for radio astronomy and atmospheric science. As NbN Superconductor-Insulator-Superconductor(SIS) mixers used for terahertz detection, which are studied by the Purple Mountain Observatory(PMO), Chinese Academy of Sciences(CAS), work at 8–10 K, and require condition of micro vibrations, its astronomical observation in aerospace is limited by suitable refrigeration method. 4 K high frequency pulse tube cryocooler developed by Key Laboratory of Space Energy Conversion Technologies(SECT), Technical Institute of Physics and Chemistry(TIPC), CAS, offers an opportunity for the application of SIS mixers. This article introduces the progress of the two-stage high frequency pulse tube cryocooler researched by TIPC. The cryocooler has reached a no load temperature of 4.5 K which is the lowest temperature for this kind of cryocooler reported so far. The successful coupling between the THz component and the high frequency pulse tube cryocooler lays a solid foundation for space detection in the terahertz band. | Jia Quan Yanjie Liu Dong Liu Kun Zhang Jingtao Liang Jing Li Qijun Yao Shengcai Shi | 2014 | Chinese Science Bulletin2014，59，27： | 12 |
| 5 | Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event. | TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou | 2018 | Science China(Physics,Mechanics & Astronomy)2018，61，3： | 12 |
| 6 | Geological characteristics and accumulation mechanisms of the 'continuous' tight gas reservoirs of the Xu2 Member in the middle-south transition region,Sichuan Basin,China显示文摘'Continuous' tight gas reservoirs are those reservoirs which develop in widespread tight sandstones with a continuous distribution of natural gas.In this paper,we summarize the geological features of the source rocks and 'continuous' tight gas reservoirs in the Xujiahe Formation of the middle-south transition region,Sichuan Basin.The source rocks of the Xu1 Member and reservoir rocks of the Xu2 Member are thick(Xu1 Member:40 m,Xu2 Member:120 m) and are distributed continuously in this study area.The results of drilled wells show that the widespread sandstone reservoirs of the Xu2 Member are charged with natural gas.Therefore,the natural gas reservoirs of the Xu2 Member in the middle-south transition region are 'continuous' tight gas reservoirs.The accumulation of 'continuous' tight gas reservoirs is controlled by an adequate driving force of the pressure differences between source rocks and reservoirs,which is demonstrated by a 'one-dimensional' physical simulation experiment.In this simulation,the natural gas of 'continuous' tight gas reservoirs moves forward with no preferential petroleum migration pathways(PPMP),and the natural gas saturation of 'continuous' tight gas reservoirs is higher than that of conventional reservoirs. | Zou Caineng Gong Yanjie Tao Shizhen Liu Shaobo | 2013 | Petroleum Science2013，10，2： | 11 |
| 7 | The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment. | ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，2： | 11 |
| 8 | Multifunctional lymph-targeted platform based Mn@mSiO2 nanocomposites: Combining PFOB dual-mode imaging and DOX for cancer diagnose treatment on for and显示文摘 | Tian Liu Guangyu Wu Jiejun Cheng Qing Lu Yanjie Yao Zhenjing Liu Dongchen Zhu Juan Zhou Jianrong Xu Jun Zhu Dannong He | 2016 | Nano Research2016，9，2： | 11 |
| 9 | Design of a control system for a macro-micro dual-drive high acceleration high precision positioning stage for IC packaging显示文摘A macro-micro dual-drive positioning system showing good potential for high acceleration and high precision positioning required in IC packaging applications is devised in this paper. The dual-drive positioning stage uses a VCM (voice coil motor) driven macro positioning stage and a PZT piezo-electric driven micro positioning stage. The coupling characteristics of the system are analyzed to produce a control structure with a micro positioning stage that can dynamically compensate for the positioning error produced by the macro positioning stage. Models of the two positioning stages are described. The models cover both the mechanism and the actuator. For the macro positioning stage, friction characteristics are taken into account, and a controller with an LQG (linear-quadratic-Gaussian) control algorithm combining a feed-forward compensation algorithm is derived. A PID controller is used to control the micro positioning stage. Detailed designs are derived for the proposed approach, and the performance is validated by simulation. | LIU YanJie LI Teng SUN LiNing | 2009 | Science China(Technological Sciences)2009，52，7： | 10 |
| 10 | Nutritional compositions of various potato noodles:Comparative analysis显示文摘In this study,three kinds of noodles,wheat,Shepody potato and Atlantic potato noodles,were produced with blended powder consisting of wheat flour and certain amounts of various potato flours.In order to investigate the effects of potato flour on the nutritional characteristics of noodles,the nutrient compositions of four types of noodles were analyzed:fresh noodle,dried noodle,fresh noodle after boiling,and dried noodle after boiling.Results showed that the contents of protein,crude fiber,total ash,reducing sugar,vitamin B1,vitamin B2,vitamin B3,vitamin C,most mineral elements,dietary fiber,and amino acids in potato noodles were higher than those in wheat noodles.Furthermore,drying and boiling could decrease the contents of vitamin B1,vitamin B3,and mineral elements in noodles,but the nutrient contents in potato noodles remained higher than those in wheat noodles.The comprehensive nutritional values of noodles were evaluated using the index of nutritional quality,the results showed that the nutritional value of Shepody potato noodles was the highest,followed by that of Atlantic potato noodles and then wheat noodles. | Xu Fen Hu Honghai Dai Xiaofeng Liu Qiannan Huang Yanjie Zhang Hong | 2017 | International Journal of Agricultural and Biological Engineering2017，10，1： | 9 |
| 11 | Improved thermal conductivity of epoxy resin by graphene-nickel three-dimensional filler显示文摘Owing to high thermal conductivity,carbon nanotube and graphene have been used as nanofillers to improve the thermal conductivity of polymer.However,the agglomeration of nanofillers in polymer inhibits their applications in improving the thermal conductivity of composite.To overcome this problem,graphene was grown on Ni foam by chemical vapor deposition in this work.And graphene-nickel three-dimensional filler was added into epoxy resin to improve the thermal conductivity of epoxy resin.Ni foam can prevent the agglomeration of graphene in epoxy resin and a thermally conductive network by graphene and Ni foam was formed in epoxy resin.By adding graphene-nickel three-dimensional filler into epoxy resin,the thermal conductivity of graphene-nickel/epoxy composite can reach up to 2.6549 W⋅m^(-1)⋅k^(-1),which was 9 times higher than that of raw epoxy resin. | Yanjie Liu Jiangyin Lu Yanbin Cui | 2020 | Carbon Resources Conversion2020，3，1： | 9 |
| 12 | Relationships between Interannual and Intraseasonal Variations of the Asian–Western Pacific Summer Monsoon Hindcasted by BCC CSM 1.1(m)显示文摘Using hindcasts of the Beijing Climate Center Climate System Model, the relationships between interannual variability(IAV) and intraseasonal variability(ISV) of the Asian–western Pacific summer monsoon are diagnosed. Predictions show reasonable skill with respect to some basic characteristics of the ISV and IAV of the western North Pacific summer monsoon(WNPSM) and the Indian summer monsoon(ISM). However, the links between the seasonally averaged ISV(SAISV) and seasonal mean of ISM are overestimated by the model. This deficiency may be partially attributable to the overestimated frequency of long breaks and underestimated frequency of long active spells of ISV in normal ISM years, although the model is capable of capturing the impact of ISV on the seasonal mean by its shift in the probability of phases.Furthermore, the interannual relationships of seasonal mean, SAISV, and seasonally averaged long-wave variability(SALWV; i.e., the part with periods longer than the intraseasonal scale) of the WNPSM and ISM with SST and low-level circulation are examined. The observed seasonal mean, SAISV, and SALWV show similar correlation patterns with SST and atmospheric circulation, but with different details. However, the model presents these correlation distributions with unrealistically small differences among different scales, and it somewhat overestimates the teleconnection between monsoon and tropical central-eastern Pacific SST for the ISM, but underestimates it for the WNPSM, the latter of which is partially related to the too-rapid decrease in the impact of El Nino–Southern Oscillation with forecast time in the model. | LIU Xiangwen WU Tongwen YANG Song LI Qiaoping CHENG Yanjie LIANG Xiaoyun FANG Yongjie JIE Weihua NIE Suping | 2014 | Advances in Atmospheric Sciences2014，31，5： | 9 |
| 13 | The Low Energy X-ray telescope (LE) onboard the Insight-HXMT astronomy satellite显示文摘The Low Energy X-ray telescope(LE) is one of the three main instruments of the Insight-Hard X-ray Modulation Telescope(Insight-HXMT). It is equipped with Swept Charge Device(SCD) sensor arrays with a total geometrical area of 384 cm^2 and an energy band from 0.7 to 13 ke V. In order to evaluate the particle induced X-ray background and the cosmic X-ray background simultaneously, LE adopts collimators to define four types of Field Of Views(FOVs), i.e., 1.6°×6°, 4°×6°, 50°-60°×2°-6 oand the blocked ones which block the X-ray by an aluminum cover. LE is constituted of three detector boxes(LEDs) and an electric control box(LEB) and achieves a good energy resolution of 140 e V@5.9 ke V, an excellent time resolution of 0.98 ms, as well as an extremely low pileup(<1%@18000 cts/s). Detailed performance tests and calibration on the ground have been performed,including energy-channel relation, energy response, detection efficiency and time response. | Yong Chen WeiWei Cui Wei Li Juan Wang YuPeng Xu FangJun Lul YuSa Wang TianXiang Chen DaWei Han Wei Hu Yi Zhang Jia Huo YanJi Yang MaoShun Li Bo Lu ZiLiang Zhang TiPei Li ShuangNan Zhang ShaoLin Xiong Shu Zhang RongFeng Xue XiaoFan Zhao Yue Zhu YuXuan Zhu HongWei Liu YiJung Yang Fan Zhang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 8 |
| 14 | Occurrence and infection risk of waterborne pathogens in Wanzhou watershed of the Three Gorges Reservoir, China显示文摘The Three Gorges Reservoir (TGR), formed by China's Yangtze Three Gorges Project, is the largest lake in the world, but there is too little information available about fecal contamination and waterborne pathogen impacts on this aquatic ecosystem. During two successive 1-year study periods (July 2009 to July 2011), the water quality in Wanzhou watershed of the TGR was tested with regard to the presence of fecal indicators and pathogens. According to Chinese and World Health Organization water quality standards, water quality in the mainstream was good but poor in backwater areas. Salmonella, Enterohemorrhagic Escherichia coli (EHEC), Giardia and Cryptosporidium were detected in the watershed. Prevalence and concentrations of the pathogens in the mainstream were lower than those in backwater areas. The estimated risk of infection with Salmonella, EHEC, Cryptosporidium, and Giardia per exposure event ranged from 2.9 × 10 -7 to 1.68 × 10-5 , 7.04 × 10-10 to 2.36 × 10-7 , 5.39 × 10-6 to 1.25 × 10-4 and 0 to 1.2 × 10-3 , respectively, for occupational divers and recreational swimmers exposed to the waters. The estimated risk of infection at exposure to the 95% upper confidence limit concentrations of Salmonella, Cryptosporidium and Giardia may be up to 2.62 × 10-5 , 2.55 × 10-4 and 2.86 × 10-3 , respectively. This study provides useful information for the residents, health care workers and managers to improve the safety of surface water and reduce the risk of fecal contamination in the TGR. | Guosheng Xiao Zhaodan Wang Ji'an Chen Zhiqun Qiu Yanjie Li Junsheng Qi Wenyi Liu Weiqun Shu | 2013 | Journal of Environmental Sciences2013，25，9： | 7 |
| 15 | Resveratrol improves cognition and reduces oxidative stress in rats with vascular dementia显示文摘Resveratrol possesses beneficial biological effects,which include anti-oxidant,anti-inflammatory and anti-carcinogenic properties.Recently,resveratrol has been shown to exhibit neuroprotective effects in models of Parkinson's disease,cerebral ischemia and Alzheimer's disease.However,its effects on vascular dementia remain unclear.The present study established a rat model of vascular dementia using permanent bilateral common carotid artery occlusion.At 8-12 weeks after model induction,rats were intragastrically administered 25 mg/kg resveratrol daily.Our results found that resveratrol shortened the escape latency and escape distances in the Morris water maze,and prolonged the time spent percentage and swimming distance percentage in the target quadrant during the probe test,indicating that resveratrol improved learning and memory ability in vascular dementia rats.Further experiments found that resveratrol decreased malonyldialdehyde levels,and increased superoxide dismutase activity and glutathione levels in the hippocampus and cerebral cortex of vascular dementia rats.These results confirmed that the neuroprotective effects of resveratrol on vascular dementia were associated with its anti-oxidant properties. | Xingrong Ma Zhikun Sun Yanru Liu Yanjie Jia Boai Zhang Jiewen Zhang | 2013 | Neural Regeneration Research2013，8，22： | 7 |
| 16 | Design and physical model experiment of an attitude adjustment device for a crawler tractor in hilly and mountainous regions显示文摘To address the problems of difficult leveling and poor stability of hill crawler tractors,an attitude adjustment device based on a parallel four-bar mechanism was designed,and the mechanical reasons for the sideslip instability of hill crawler tractors were analyzed.On this basis,a posture adjustment mechanism based on a parallel four-bar mechanism was proposed,and the structure of the complete attitude adjustment device was designed.To ensure that this device meets the strength requirements during operation,a mechanical analysis of the key components(active rocker and slave rocker)was carried out to accommodate the load during leveling.Based on ANSYS software,a finite element simulation analysis was used to determine the maximum stress position of the active and slave rockers.Finally,to verify the accuracy of the above simulation analysis results and determine the influence rules of the lateral slope angle,longitudinal slope angle and loading quality on the abovementioned maximum stress,a physical model test bench of the attitude adjustment device was built.An orthogonal regression experiment was carried out with the maximum stresses of the active and slave rockers as the test indices.The experimental data were analyzed by Design-Expert 10 software,and the results show that the order of the primary and secondary factors influencing the maximum stress of the active rocker was the loading mass,lateral slope angle and longitudinal slope angle.The order of the factors influencing the maximum stress of the slave rocker was the longitudinal slope angle,lateral slope angle and loading mass.The active and slave rockers meet the strength requirements.This work provides technical support for the production of hill crawler tractor physical prototypes. | Jingbin Sun Chong Meng Yazhou Zhang Guoping Chu Yanjie Zhang Fuzeng Yang Zhijie Liu | 2020 | Information Processing in Agriculture2020，7，3： | 5 |
| 17 | A novel approach for designing efficient broadband photodetectors expanding from deep ultraviolet to near infrared显示文摘Broadband photodetection(PD)covering the deep ultraviolet to near-infrared(200–1000 nm)range is significant and desirable for various optoelectronic designs.Herein,we employ ultraviolet(UV)luminescent concentrators(LC),iodinebased perovskite quantum dots(PQDs),and organic bulk heterojunction(BHJ)as the UV,visible,and near-infrared(NIR)photosensitive layers,respectively,to construct a broadband heterojunction PD.Firstly,experimental and theoretical results reveal that optoelectronic properties and stability of CsPbI3 PQDs are significantly improved through Er3+doping,owing to the reduced defect density,improved charge mobility,increased formation energy,tolerance factor,etc.The narrow bandgap of CsPbI3:Er3+PQDs serves as a visible photosensitive layer of PD.Secondly,considering the matchable energy bandgap,the BHJ(BTP-4Cl:PBDB-TF)is selected as to NIR absorption layer to fabricate the hybrid structure with CsPbI3:Er3+PQDs.Thirdly,UV LC converts the UV light(200–400 nm)to visible light(400–700 nm),which is further absorbed by CsPbI3:Er3+PQDs.In contrast with other perovskites PDs and commercial Si PDs,our PD presents a relatively wide response range and high detectivity especially in UV and NIR regions(two orders of magnitude increase that of commercial Si PDs).Furthermore,the PD also demonstrates significantly enhanced air-and UV-stability,and the photocurrent of the device maintains 81.5%of the original one after 5000 cycles.This work highlights a new attempt for designing broadband PDs,which has application potential in optoelectronic devices. | Nan Ding Yanjie Wu Wen Xu Jiekai Lyu Yue Wang Lu Zi Long Shao Rui Sun Nan Wang Sen Liu Donglei Zhou Xue Bai Ji Zhou Hongwei Song | 2022 | Light(Science & Applications)2022，11，5： | 5 |
| 18 | Tomography system for measurement of gas properties in combustion flow field显示文摘This paper describes a self-designed fiber-coupled tomography system and its application in combustion diagnostics. The tomographic technique, which combines tunable diode laser spectroscopy and algebraic reconstruction technique, enables the simultaneous reconstruction of temperature and gas concentration with both spatial and temporal resolutions. The system measures a maximum diameter of 35 cm in a circular area with a minimum spatial resolution of 1 mm×1 mm and temporal response of up to 1 kHz. Simulations validate the effects of the beam arrangement and discrete grid on reconstruction accuracy, and give the optimal beam arrangements. Experiments are made to demonstrate the tomography method, and systems are constructed in laboratory and on engineering test benches. | Junling SONG Yanji HONG Mingyuan XIN Guangyu WANG Zhaoran LIU | 2017 | Chinese Journal of Aeronautics2017，30，5： | 4 |
| 19 | LncDACH1 promotes mitochondrial oxidative stress of cardiomyocytes by interacting with sirtuin3 and aggravates diabetic cardiomyopathy显示文摘Diabetic cardiomyopathy(DCM)is a common complication in diabetic patients.The molecular mechanisms of DCM remain to be fully elucidated.The intronic long noncoding RNA of DACH1(lnc DACH1)has been demonstrated to be closely associated with heart failure and cardiac regeneration.In this study,we investigated the role of lnc DACH1 in DCM and the underlying molecular mechanisms.The expression of lnc DACH1 was increased in DCM hearts and in high glucose-treated cardiomyocytes.Knockout of lnc DACH1 reduced mitochondrial oxidative stress,cell apoptosis,cardiac fibrosis and hypertrophy,and improved cardiac function in DCM mice.Overexpression of lnc DACH1 exacerbated mitochondria-derived reactive oxygen species(ROS)level and apoptosis,decreased activity of manganese superoxide dismutase(Mn-SOD);while silencing of lnc DACH1 attenuated ROS production,mitochondrial dysfunction,cell apoptosis,and increased the activity of Mn-SOD in cardiomyocytes treated with high glucose.Lnc DACH1 directly bound to sirtuin3(SIRT3)and facilitated its degradation by ubiquitination,therefore promoting mitochondrial oxidative injury and cell apoptosis in mouse hearts.In addition,SIRT3 silencing abrogated the protective effects of lnc DACH1 deficiency in cardiomyocytes.In summary,lnc DACH1 aggravates DCM by promoting mitochondrial oxidative stress and cell apoptosis via increasing ubiquitination-mediated SIRT3 degradation in mouse hearts.Inhibition of lnc DACH1 represents a novel therapeutic strategy for the intervention of diabetic cardiomyopathy. | Qi Zhang Danyang Li Xue Dong Xiaowen Zhang Junwu Liu Lili Peng Bo Meng Qi Hua Xinyu Pei Lu Zhao Xiaoxi Hu Yang Zhang Zhenwei Pan Yanjie Lu Baofeng Yang | 2022 | Science China(Life Sciences)2022，65，6： | 4 |
| 20 | A closed loop 2.65 K hybrid JT cooler for future space application显示文摘Cryogenics and its applications in space have made a remarkable amount of progresses over the last few decades.In the area of space astronomy,some electronic detectors should be cooled to 1–4 K to improve their performance[1,2].So the miniature 1–4 K cryocooler for space application has become a key field for cryogenic research in recent years.In view of their flexibility and relatively higher efficiency,hybrid JT cryocoolers are widely used in space detectors working at below 4 K.In fact,nearly all the space applications of mechanical cryocoolers working at the temperature of 1–4 K,having been launched or under development are hybrid JT cryocoolers[2–6]. | MA YueXue QUAN Jia WANG Juan LIU YanJie LI JianGuo LIANG JingTao | 2019 | Science China(Technological Sciences)2019，62，2： | 4 |
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