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| 1 | Gully Erosion Regionalization of Black Soil Area in Northeastern China显示文摘Gully erosion is the frequent and main form of soil erosion in the black soil area of the northeastern China, which is one of the most important commodity grain production bases in China. It is encroaching upon the fertile farmland there. Regionalization of gully erosion can reveal the spatial distribution and regularity of the development of gully erosion. Based on the eco-geographical regional background features of the black soil area, this study combined the regionalization with influencing factors of the development of gully erosion. GIS spatial analysis, geostatistical analysis, spatial statistics, reclassification, debris polygon processing and map algebra methods were employed. As a result, the black soil area was divided into 12 subregions. The field survey data on type, length, volume and other characteristics indicators of gully erosion were used to calibrate the results. Then the features of every subregion, such as where the gully erosion is, how serious it is, and why it happens and develops, were expounded. The result is not only an essential prerequisite for gully erosion surveys and monitoring, but also an important basis for gully erosion prevention. | YANG Jiuchun ZHANG Shuwen CHANG Liping LI Fei LI Tianqi GAO Yan | 2017 | Chinese Geographical Science2017，27，1： | 13 |
| 2 | Remote Sensing Monitoring of Gullies on a Regional Scale: A Case Study of Kebai Region in Heilongjiang Province, China显示文摘Gully erosion is one of the major causes of land degradation in most areas and attracts increasing attention from researchers. We monitored gullies in the Kebai region in Heilongjiang Province of China by using remote sensing data and found that gully density increased with the increase in slope when the slope was less than 3°. Gully density in sunny slopes or windward slopes was greater than in shady slopes or leeward slopes because of the impacts of freezing and thawing, wind and solar radiation. Specifically, the gully density in northeast slope was the greatest and in southwest was the smallest. Gully density was reduced with increasing slope length and the longer the slope length, the less the gully density changed between 1965 and 2005. Affected by runoff, gullies most easily to occur in concave slopes and the critical elevation for gully erosion was 250–275 m. Moreover, hilly regions had the greatest gully density, followed by tableland regions, whereas the gully density in flatlands was the lowest. However, the gully density of these three types of landforms all increased between 1945 and 2000, and the portion of increase was 57.45%(hill), 52.91%(mesa) and 25.32%(plain), respectively. | ZHANG Shuwen LI Fei LI Tianqi YANG Jiuchun BU Kun CHANG Liping WANG Wenjuan YAN Yechao | 2015 | Chinese Geographical Science2015，25，5： | 10 |
| 3 | Release of VEGF and BMP9 from injectable alginate based composite hydrogel for treatment of myocardial infarction显示文摘Myocardial infarction(MI)is one of cardiovascular diseases that pose a serious threat to human health.The pathophysiology of MI is complex and contains several sequential phases including blockage of a coronary artery,necrosis of myocardial cells,inflammation,and myocardial fibrosis.Aiming at the treatment of different stages of MI,in this work,an injectable alginate based composite hydrogel is developed to load vascular endothelial active factor(VEGF)and silk fibroin(SF)microspheres containing bone morphogenetic protein 9(BMP9)for releasing VEGF and BMP9 to realize their respective functions.The results of in vitro experiments indicate a rapid initial release of VEGF during the first few days and a relatively slow and sustained release of BMP9 for days,facilitating the formation of blood vessels in the early stage and inhibiting myocardial fibrosis in the long-term stage,respectively.Intramyocardial injection of such composite hydrogel into the infarct border zone of mice MI model via multiple points promotes angiogenesis and reduces the infarction size.Taken together,these results indicate that the dual-release of VEGF and BMP9 from the composite hydrogel results in a collaborative effect on the treatment of MI and improvement of heart function,showing a promising potential for cardiac clinical application. | Yong Wu Tianqi Chang Weiqian Chen Xiaoyu Wang Jingjing Li Yueqiu Chen You Yu Zhenya Shen Qian Yu Yanxia Zhang | 2021 | Bioactive Materials2021，6，2： | 7 |
| 4 | A New Species of the Genus Achalinus from Huangshan, Anhui, China(Squamata: Xenodermidae)显示文摘A new species of the genus Achalinus is described based on five specimens collected from the villages of Huangjialing and Fuxi, Huangshan, Anhui, China. It can be morphologically differentia ted from all the other species in Achalinus except for A. spinalis and A. werneri by the presence of a dotted black streak in the middle of the subcaudal. It can be distinguished from A. spinalis in that its two anterior temporals are in contact with eye, and A. werneri by its light brown flanks. The phylogenetic rela tionship of Achalinus was reconstructed using the mitochondrial locus of cytochrome coxidase subunit 1(CO1). The five new specimens form a monophyletic clade with strong support. The uncorrected p-dista nces between the new species and other representatives of Achalinus range from 13.6% to 21.7%. The recognition of the new species increases the number of described Achalinus species to 14. | Ruyi HUANG Lifang PENG Lei YU Tianqi HUANG Ke JIANG Li DING Jinkang CHANG Diancheng YANG Yuhao XU Song HUANG | 2021 | Asian Herpetological Research2021，12，2： | 3 |
| 5 | Prevalence and molecular characterization of Pentatrichomonas hominis in Siberian tigers(Panthera tigris altaica)in northeast China显示文摘INTRODUCTION Pentatrichomonas hominis,an anaerobic flagellated protozoan that inhabits the large intestines of mammals and belongs to the Trichomonadidae family(Wenrich 1944;Kim et al.2010;Li et al.2014b,2016,2018a,2020;Maritz et al.2014;Zhang et al.2019),is mainly transmitted through the fecal-oral route.It was originally presumed to be a commensal protozoan(Tolbert et al.2012)but was found to cause gastrointestinal symptoms. | Hongbo ZHANG Nan ZHANG Pengtao GONG Shuqin CHENG Xiaocen WANG Xin LI Zhijun HOU Chang LIU Tianqi BI Bobo WANG Yidan CHENG Jianhua LI Xichen ZHANG | 2022 | Integrative Zoology2022，17，4： | 1 |
| 6 | Dual interfacial engineering for efficient Cs_(2)AgBiBr_(6) based solar cells显示文摘The emerging lead-free halide double perovskite solar cells have attracted widespread attentions due to their long-term stability and non-toxicity, but suffer from the low device performance. One efficiencylimiting factor is the improper contacts between the halide double perovskite and anode/cathode electrodes. Here, we improve the efficiency and stability of the bismuth-halide double perovskite based solar cells by a synergistic interface design for both electron and hole transport layers(ETL/HTL). The results show that the modification of the TiO_2 ETL with a thin hydrophobic C60 layer and replacement of the lithium-doped small molecule HTL with an un-doped conjugated polymer lead to higher surface quality of perovskite film and better energy-level alignment at the contacts. As a result, the optimized device shows reduced trap density, suppressed charge recombination and enhanced charge extraction, leading to an increase of 69% in device efficiency. In addition, the device also exhibits superior stability in ambient environment, heat stress and light bias after interface optimization. This work provides an efficient strategy for the device optimization of the emerging lead-free perovskite solar cells. | Tao Luo Yalan Zhang Xiaoming Chang Junjie Fang Tianqi Niu Jing Lu Yuanyuan Fan Zicheng Ding Kui Zhao Shengzhong(Frank)Liu | 2021 | Journal of Energy Chemistry2021，30，2： | 1 |
| 7 | Biomaterials based cardiac patches for the treatment of myocardial infarction显示文摘Myocardial infarction(MI)is one of the common cardiovascular diseases that occurs with a blockage in one or more of the coronary arteries to lead to the damage of the myocardium,resulting in a lifethreatening condition.To repair the damaged myocardium in MI,researchers are looking forwards to new ways to postpone the progression of myocardial injury.Cardiac patches,the scaffolds layered on the heart surface,can provide mechanical support for the infarction site and improve cardiac function by delivering various bioactive factors or cells,showing considerable curative effect in the treatment of MI.Biomaterials with certain biocompatibility and mechanical properties have received widespread attention for the application in cardiac patches.In this review,we focus on the recent progress on these biomaterialsbased cardiac patches,which could be categorized into two types according to the sources of materials including(ⅰ)natural materials and(ⅱ)synthetic materials.The major advantages and current challenges of each type are discussed and a brief perspective on the future research directions is presented. | Tianqi Chang Chunxia Liu Kunyan Lu Yong Wu Mingzhu Xu Qian Yu Zhenya Shen Tingbo Jiang Yanxia Zhang | 2021 | Journal of Materials Science & Technology2021，，35： | 1 |
| 8 | SEU sensitivity and large spacing TMR efficiency of Kintex-7 and Virtex-7 FPGAs显示文摘Dear editor,The static random-access memory(SRAM)-based field programmable gate arrays(FPGAs)mainly composed of extensive configurable logic blocks(CLBs),high-speed embedded memories(BRAMs),and a set of programmable routing,wires or switch boxes[1,2]are commonly used in avionic and space fields because of their advanced performance and high flexible in-field reprogramming abilities[2]. | Chang CAI Bingxu NING Xue FAN Tianqi LIU Lingyun KE Gengsheng CHEN Jian YU Ze HE Liewei XU Jie LIU | 2022 | Science China(Information Sciences)2022，65，2： | 1 |
| 9 | Climate evolution of southwest Australia in the Miocene and its main controlling factors显示文摘At present, the seasonal melting and expansion of the Antarctic ice sheet affect the location and intensification of the westerlies, as well as the precipitation and continental weathering and erosion in southwest Australia. The Miocene was an important period when the Earth's climate state transitioned from a warmhouse to an icehouse and the East Antarctic Ice Sheet underwent large-scale melting and expansion. At that time, Australia was closer to the Antarctic region than it is now. This makes Australia an ideal target area for studying the coupling relationship among the atmosphere, hydrosphere, lithosphere, and cryosphere. Based on the comprehensive analysis of the siliciclastic mass accumulation rate, grain size, clay minerals, and elemental composition of the sediments at Site U1516 of the International Ocean Discovery Program Expedition 369, we reconstructed the Miocene climate evolution and the continental weathering and erosion history of southwest Australia on a tectonic time scale. Our indicators show that the climate was dry and that continental weathering and erosion were weak, with a small amount of terrestrial material transported to the ocean during the Early to Middle Miocene(22–12.7 Ma). However, as mentioned in previous studies of nearby sites, precipitation and river runoff increased prominently with enhanced continental weathering at 12.7–8 Ma, which was related to the northward migration or intensification of the westerlies, possibly due to increased sea ice in the Southern Ocean. In addition, we found that the evolution of the South Asian monsoon and the westerly belt were synchronized in the Miocene, which indicates that the South Asian monsoon system at that time may also have been affected by the high-latitude signals of the Southern Hemisphere. We speculate that the significant decrease in deep-sea temperature and the expansion of the surface sea temperature gradient in latitude and longitude until the permanent East Antarctic Ice Sheet formed(~12.8 Ma) played an important role in the transmission of Antarctic signals to low latitudes. | Tianqi SUN Zhaokai XU Fengming CHANG Tiegang LI | 2022 | Science China Earth Sciences2022，65，6： | 0 |
| 10 | Hepatic Zbtb18 (Zinc Finger and BTB Domain Containing 18) alleviates hepatic steatohepatitis via FXR (Farnesoid X Receptor)显示文摘A lasting imbalance between fatty acid synthesis and consumption leads to non-alcoholic fatty liver disease(NAFLD),coupled with hepatitis and insulin resistance.Yet the details of the underlying mechanisms are not fully understood.Here,we unraveled that the expression of the transcription factor Zbtb18 is markedly decreased in the livers of both patients and murine models of NAFLD.Hepatic Zbtb18 knockout promoted NAFLD features like impaired energy expenditure and fatty acid oxidation(FAO),and induced insulin resistance.Conversely,hepatic Zbtb18 overexpression alleviated hepato-steatosis,insulin resistance,and hyperglycemia in mice fed on a high-fat diet(HFD)or in diabetic mice.Notably,in vitro and in vivo mechanistic studies revealed that Zbtb18 transcriptional activation of Farnesoid X receptor(FXR)mediated FAO and Clathrin Heavy Chain(CLTC)protein hinders NLRP3 inflammasome activity.This key mechanism by which hepatocyte’s Zbtb18 expression alleviates NAFLD and consequent liver fibrosis was further verified by FXR’s deletion and forced expression in mice and cultured mouse primary hepatocytes(MPHs).Moreover,CLTC deletion significantly abrogated the hepatic Zbtb18 overexpression-driven inhibition of NLRP3 inflammasome activity in macrophages.Altogether,Zbtb18 transcriptionally activates the FXR-mediated FAO and CLTC expression,which inhibits NLRP3 inflammasome’s activity alleviating inflammatory stress and insulin resistance,representing an attractive remedy for hepatic steatosis and fibrosis. | Lei Zhang Jiabing Chen Xiaoying Yang Chuangpeng Shen Jiawen Huang Dong Zhang Naihua Liu Chaonan Liu Yadi Zhong Yingjian Chen Kaijia Tang Jingyi Guo Tianqi Cui Siwei Duan Jiayu Li Shangyi Huang Huafeng Pan Huabing Zhang Xiaoqiang Tang Yongsheng Chang Yong Gao | 2024 | Signal Transduction and Targeted Therapy2024，9，2： | 0 |
| 11 | 不同质子能量下65nm特征尺寸3D-SRAM器件能量沉积模拟研究显示文摘Since Heidel et al.have found that low-energy protons can significantly cause single event upset in nano��devices through direct ionization in the experiment[1],the study of low-energy proton induced SEU through direct ionization mechanism has received increasing attention.3D-IC technology based 3D SRAM places traditional SRAMs in different dies and stacks the dies for increase integration and speed.Because of this,the radiation effects between 3D SRAM and traditional SRAM is quite different.Therefore,the simulation of 3D SRAM energy deposit caused by low-energy protons is carried out here. | Ye Bing Liu Jie Liu Tianqi Luo Jie Ji Qinggang Zhao Peixiong Mo Lihua Cai Chang Hou Mingdong Sun Youmei | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 12 | 重离子在MRAM中引起的辐照效应研究显示文摘Nonvolatile memories play a critical role for storing significant data,the programs of micro control system and scientific observation data[1].Unfortunately,conventional charge non-volatile memories,EEPROM or PROM are hardly to suitable the new missions nowadays,such as the requirements of more than 10 years on-orbit service and ultra-deep space exploration missions,etc.Representation of novel NVRAM technologies of magnetoresistive random access memories(MRAM)utilize magnetic bits of a magnetic tunnel junction(MTJ)[2]to store binary data have inherently endurance to the direct ionization induced by the charge particle.Therefore,it is an ideal candidate general-purpose memory to be used in space-borne microelectronics. | Zhao Peixiong Liu Jie Liu Tianqi Ji Qinggang Cai Chang Li Dongqing He Ze Ye Bing Mo Lihua Zhai Pengfei Sun Youmei Hou Mingdong | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 13 | 抗辐射FPGA单粒子翻转敏感性研究显示文摘In our work,the presentative configuration memory(CM)with dual interlocked storage cell and(DICE)hardened in CMOS-based 65 nm FPGA were chosen for heavy-ion evaluation.CM adopting DICE hardened structure controlled the whole routing and logical resources in FPGA is the most essential parts in radiation hardened design.For basic CMOS FPGAs,the ionizing particles can momentarily generate charges and short-circuit transistor’drain to substrate,leading node transition and initial data upset.However,DICE cell indicates that energy deposition must affect the interlocked two logics and change the electrostatic potentials in two bi-stable circuits synchronously[1]. | Cai Chang Liu Jie Liu Tianqi Zhao Peixiong Li Dongqing Ye Bing Mo Lihua He Ze Sun Youmei | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 14 | 总剂量效应对FRAM器件单粒子翻转敏感性的影响显示文摘Ferroelectric random access memory(FRAM)is a type of nonvolatile memory that possesses many advantages,such as high operation speed and low power consumption[1].In this work,the impact of total ionizing dose(TID)on single event upset(SEU)sensitivity was studied for FRAMs.The influence of different test modes and memory patterns on FRAMs was investigated.Parameters of the test devices are listed in Table 1. | Ji Qinggang Liu Jie Yin Yanan Liu Tianqi Ye Bing Zhao Peixiong Cai Chang Liu Li Mo Lihua Li Dongqing Hou Mingdong | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 15 | 反熔丝PROM单粒子效应评估显示文摘1T anti-fuse PROM fabricated by 0.13m silicon epitaxial process has a fast-read speed and a high storage density[1].8 and 16 MeVbit PROMs were irradiated by swift heavy ions for single event effect(SEE)evaluation at the terminal TR5 of the HIRFL.Testing results revealed that the PROMs have strong capacity to resist single event latch-up(SEL),because of anti-fuse mechanism and guard ring structures.No SEL phenomenon occurred during the testing.Additionally,Weibull function,as given below,was used to fit heavy-ion single event upset(SEU)cross-section statistics. | Cai Chang Liu Jie Liu Tianqi Zhao Peixiong Li Dongqing Ye Bing Yin Yanan Ji Qinggang Mo Lihua Liu Li | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
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