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| 1 | Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems. | SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui | 2012 | Science China Earth Sciences2012，55，7： | 24 |
| 2 | Environmental conditions and genetic differentiation:what drives the divergence of coexisting Leymus chinensis ecotypes in a large-scale longitudinal gradient?显示文摘Aims The two coexisting Leymus chinensis ecotypes exhibit remarkable divergences in adaptive strategies under drought and salinity in semi-humid meadows and semi-arid steppes.In order to detect the major genetic and environmental factors dominating the intraspecific phenotype variations and ecotype formation,the questions regarding the two distinct phenotypic forms(ecotypes)in L.chin-ensis were addressed:(i)did environments drive the L.chinensis ecotype formation?(ii)was there a molecular basis for the morphological divergence between the two ecotypes?(iii)which driving force dominated the intraspecies divergence,divergent natural selection,genetic drift or stabilizing selection?Methods We applied a series experiments on demographical,morphological and physiological traits of two Leymus chinensis ecotypes with gray green(GG)and yellow green(YG)leaf color in nine wild sites along a longitudinal gradient from 114°to 124°E in northeast China.The environmental data including mean annual precipitation,mean annual temperature,elevation and soil properties were collected.We compared the differences of morphological,physiological and genetic differentiations between the two ecotypes.Important FindingsThe GG type exhibited stronger fitness than YG type from the population densities,morphological traits(e.g.shoot height,leaf area,leaf and seed weights et al.),leaf mass per area(LMA)and physiological traits[relative water content(RWC),proline,soluble sugar contents].Most of above phenotypes(e.g.total shoot densities,spike length et al.)were significantly correlated with mean annual precipitation,mean annual temperature and soil water content(SWC),rarely a correlated with soil pH and soil nutrient.Transplanted populations showed convergence trend by their leaf chlorophyll contents and osmotic adjustments(proline and soluble sugar contents)in the greenhouse,but still exhibited their divergences between two ecotypes in the outdoor transplantation,suggesting that whether L.chinensis ecotype differentiated could be largely affected by the environmental conditions.Furthermore,by the comparison result of quantitative genetic variation(Q_(ST))values from phenotypes with theoretical neutral genetic differentiation(F_(ST)),differentiation in phenotypic traits greatly surpassed neutral predictions,implying that directional natural selection played a crucial role in L.chinen-sis ecotype differentiation.In addition,microsatellite analysis from Neighbor-joining tree and Bayesian assignment generated into two groups according to ecotypes,indicating molecular genetic differentiation also propelled the two ecotypes divergence.We conclude that L.chinensis population variations were driven by combing divergent natural selection(precipitation,temperature and SWCs)along the large-scale gradient and significantly intrinsic genetic differentiation. | Shan Yuan Chengyuan Guo Linna Ma Renzhong Wang | 2016 | Journal of Plant Ecology2016，9，5： | 4 |
| 3 | Viscoelasticity of Asphalt Modified With Packaging Waste Expended Polystyrene显示文摘In view of environmental and economic aspect,asphalt was modified with recycled packaging waste expended polystyrene(WEPS)instead of common polymer.The differential scanning calorimetry(DSC),rotational viscometer and dynamic shear rheology(DSR)were used to analyze and evaluate the viscoelasticity of modified asphalt.Results indicate that the sensitivity of modified asphalt to temperature is decreased while the rut resistance of asphalt is increased.In addition,the viscoelasticity of asphalt is improved after the modification with WEPS.Besides,the modified asphalt has high viscosity at low temperature and low viscosity at high temperature,which is favorable for construction. | Changqing Fang Linna Jiao Jingbo Hu Qian Yu Dagang Guo Xing Zhou Ruien Yu | 2014 | Journal of Materials Science & Technology2014，30，9： | 3 |
| 4 | Ag doped urchin-like α-MnO2 toward efficient and bifunctional electrocatalysts for Li-02 batteries显示文摘Rechargeable Li-O2 batteries (LOBs) have been receiving intensive attention because of their ultra-high theoretical energy densityclose to the gasoline. Herein, Ag modified urchin-like α-MnO2 (Ag-MnO2) material with hierarchical porous structure is obtained bya facile one-step hydrothermal method. Ag-MnO2 possesses thick nanowires and presents hierarchical porous structure of mesoporesand macropores. The unique structure can expose more active sites, and provide continuous pathways for O2 and discharge productsas well. The doping of Ag leads to the change of electronic distribution in α-MnO2 (i.e., more oxygen vacancies), which playimportant roles in improving their intrinsic catalytic activity and conductivity. As a result, LOBs with Ag-MnO2 catalysts exhibit loweroverpotential, higher discharge specific capacity and much better cycle stability compared to pure a-MnO2. LOBs with Ag-MnO2catalysts exhibit a superior discharge specific capacity of 13,131 mA·h·g^-1 at a current density of 200 mA·h·g^-1, a good cycle stabilityof 500 cycles at the capacity of 500 mA·h·g^-1. When current density is increased to 400 mA·h·g^-1, LOBs still retain a long lifespan of170 cycles at a limited capacity of 1,000 mA·h·g^-1. | Linna Dai Qing Sun Lina Chen Huanhuan Guo Xiangkun Nie Jun Cheng Jianguang Guo Jianwei Li Jun Lou Lijie Ci | 2020 | Nano Research2020，13，9： | 2 |
| 5 | The effects of corn silk on glycaemic metabolism显示文摘 | Guo Jianyou Liu Tongjun Han Linna | | 0，，01： | 1 |
| 6 | Near-infrared quantum cutting in Ho 3+ , Yb 3+ -codoped BaGdF 5 nanoparticles via first-and second-order energy transfers显示文摘 | Linna Guo Yuhua Wang Jia Zhang Yanzhao Wang Pengyu Dong | 2012 | Nanoscale Research Letters2012，，1： | 1 |
| 7 | The effects of corn silk on glycaemic metabolism 显示文摘 | GUO Jianyou LIU Tongjun I-IAN Linna | 2009 | Nutri- tion & Metabolism2009，，6： | 1 |
| 8 | Defect characterization of amorphous silicon thin film solar cell based on low frequency noise显示文摘The reliability of solar cells is the key factor todetermine the performance and lifetime of photo-voltaic products. Compared to the insensitivity oftraditional electrical detection and the limitationsof in-situ characterization methods, noise measure-ment has been widely used in semiconductor de-vice reliability characterization for its rapid, sen-sitive and nondestructive. The energy band struc-ture shows that there are two kinds of defects existin amorphous silicon solar cells. | Linna HU Liang HE Hua CHEN Xiaofei JIA Ying HU Hongmei MA DANDan GUO Yu QIN | 2018 | Science China(Information Sciences)2018，61，6： | 1 |
| 9 | Light-triggered NO-releasing nanoparticles for treating mice with liver fibrosis显示文摘Liver fibrosis, resulting from chronic liver damage and characterized by the accumulation of extracellular matrix (ECM) proteins, is a characteristic of most types of chronic liver diseases. The activation of hepatic stellate cells (HSC) is considered an essential pathological hallmark in liver fibrosis. Although nitric oxide (NO) can effectively induce HSC apoptosis, the systemic administration of NO is ineffective and may cause severe complications such as hypotension. To overcome this limitation, nanoparticles were designed to target HSCs and release NO locally under the exposure of near infrared light (NIR). To achieve this, upconversion nanoparticle (UCNP) cores were enveloped in mesoporous silica shells (UCNP@mSiO2), which were modified with hyaluronic acid (HA-UCNP@mSiO2) and Roussin’s black salt (RBS). HA molecules recognize and bind to CD44 proteins, which are overexpressed on activated HSCs. Under exposure to a 980-nm NIR laser, the UCNP cores convert the 980-nm wavelength into ultraviolet (UV) light, which then energizes the RBS (NO donors), resulting in an efficient release of NO inside of the HSCs. Once released, NO triggers HSC apoptosis and reverses the liver fibrosis. This targeted and controlled release method provides the theoretical and experimental basis for novel therapeutic approaches to treat hepatic fibrosis. | Hongxia Liang Zhenhua Li Zhigang Ren Qiaodi Jia Linna Guo Shasha Li Hongyu Zhang Shiqi Hu Dashuai Zhu Deliang Shen Zujiang Yu Ke Cheng | 2020 | Nano Research2020，13，8： | 1 |
| 10 | DCLK1 autoinhibition and activation in tumorigenesis显示文摘Doublecortin-like kinase 1(DCLK1)is upregulated in many tumors and is a marker for tumor stem cells.Accumulating evidence suggests DCLK1 constitutes a promising drug target for cancer therapy.However,the regulation of DCLK1 kinase activity is poorly understood,particularly the function of its autoinhibitory domain(AID),and,moreover,no physiological activators of DCLK1 have presently been reported.Here we determined the first DCLK1 kinase structure in the autoinhibited state and identified the neuronal calcium sensor HPCAL1 as an activator of DCLK1.The C-terminal AID functions to block the ATP-binding site and is competitive with ATP.HPCAL1 binds directly to the AID in a Ca^(2+)-dependent manner,which releases the autoinhibition.We also analyzed cancer-associated mutations occurring in the AID and elucidate how these mutations disrupt DCLK1 autoinhibition to elicit kinase activity upregulation.Our results present a molecular mechanism for autoinhibition and activation of DCLK1 kinase activity and provide insights into DCLK1-associated tumorigenesis. | Linna Cheng Zejing Yang Wenhao Guo Chengyong Wu Shufang Liang Aiping Tong Zhongwei Cao Rick F.Thorne Sheng-Yong Yang Yamei Yu Qiang Chen | 2022 | The Innovation2022，3，1： | 1 |
| 11 | Investigation of the Potential and Mechanism of Clove for Mitigating Airborne Particulate Matter Emission from Stationary Sources显示文摘植物的障碍(VB ) 有潜力减轻从区域来源射出的空气污染物质,包括喂操作(AFO ) 的集中的动物。然而,机制充分没被调查,从而在实践限制植被系统的应用程序。有可重复、可控制的条件的一个试验性的方法被开发测量微粒事(下午)集中的变化在在风中的 VB 迎风、顺风与扫描电子显微镜( SEM )在叶子掘并且观察积累的下午,因此在减轻从 AFO 射出的下午评估 VB 的能力。分支规模植被,劈开(syzygium aromaticum ) 因为它的叶子是专业之一,被选择因素影响下午分散。结果证明分支规模障碍多孔的媒介有能力防碍气流和还原剂下午,它能被风速度,粒子尺寸部分和表面区域密度影响劈开。而且,劈开元素能适应风和微结构劈开(例如叶子的层次结构) 在 PM 免职上影响了。这些结果显示在这研究开发的方法可以被用来在从静止来源减轻下午评估植被的潜力,并且植被的一些特征能是为探索减少微粒的工程申请的进一步学习的同样仿生的原型。 | Jin Tong Xin Liu Ronaldo Maghirang Kaiqi Wei Linna Liu Chun Wang Yunhai Ma Donghui Chen Hongjia Yan Li Guo | 2017 | Journal of Bionic Engineering2017，14，2： | 1 |
| 12 | Isoliquiritigenin inhibits Ishikawa endometrial carcinoma cells proliferation and promotes apoptosis显示文摘Endometrial cancer is the fourth most frequent neoplasia i women worldwide,and the molecular mechanisms involved in the etiology and pathogenesis continue to be investigated.Isoliquiritigenin(ISL),an important flavonoid isolated from Glycyrrhizae radix,possesses a wide range of pharmacological properties such as antioxidant,antiinflammatory,antitumor and immunoreg ulatory activities.This study aimed to investigate the molecular mechanisms of ISL on the proliferation and apoptosis resistance of Ishikawa endometrial carcinoma cells. | Yao Lijie Jiang Yang Ma Yong Guo Linna Jin Haifeng | 2021 | 解剖学杂志2021，44，S01： | 0 |
| 13 | 锂氧电池中基于自支撑Ag/δ-MnO_(2)纳米花正极的可逆LiOH化学显示文摘因放电产物对有机电解液具有高攻击性,使得锂-氧电池能量效率低和循环稳定性差的问题一直限制着其实际应用.与典型放电产物过氧化锂相比,氢氧化锂(LiOH)具有更好的化学和电化学稳定性.本文通过在碳纸上原位生长嵌有纳米银的花状二氧化锰作为锂-氧电池的正极(Ag/δ-MnO_(2)@CP),并证明了它能催化LiOH的可逆生成和分解.原位拉曼测试和理论计算表明Ag/δ-MnO_(2)催化放电中间体LiO2*与水分子解离的H+反应最终生成LiOH.以Ag/δ-MnO_(2)@CP为正极的锂-氧电池在潮湿氧气环境下表现出更高的比容量和放电平台.在电流密度为200 mA g^(−1)时,锂-氧电池的过电位仅为0.5 V,在500 mA h g^(−1)的限制比容量下可循环867圈.该工作为研究固相催化剂在锂-氧电池中的作用提供了新的思路,并将促进基于LiOH放电产物的锂-氧电池的实际应用. | Linna Dai Qing Sun Yuqing Yao Huanhuan Guo Xiangkun Nie Jianwei Li Pengchao Si Jingyu Lu Deping Li Lijie Ci | 2022 | Science China Materials2022，65，6： | 0 |
| 14 | Modulating surface cation vacancies of nickel-cobalt oxides as efficient catalysts for lithium-oxygen batteries显示文摘Rechargeable lithium-oxygen batteries(LOBs)have received incremental attention owing to their high energy density and applicability to mobile devices and electric vehicles.However,the lack of robust,low-cost,and environmentally benign bifunctional catalysts is a major impediment to the commercial application.The introduction of vacancies is one of the effective strategies to enhance the performance of cathode catalysts for lithium-oxygen batteries,but the preparation is complicated.In this work,needle-like microsphere cathode catalysts of nickel-cobalt oxide containing cationic vacancies are constructed by controlling the annealing temperature.It is demonstrated that the presence of cationic vacancies can modulate the electronic structure of the catalyst,reduce the energy barrier for the oxygen electrode re-action,meanwhile enhance the bifunctional catalytic activity.Impressively,the nickel-cobalt oxide-based LOB with cationic vacancies exhibits large specific capacity(12,205 mAh g^(-1)at 200 mA g^(-1))and good durability.This work provides worthwhile insight into the formation and catalytic enhancement mech-anism of transition metal oxide catalysts with cationic vacancies,and to some extent,the creation of efficient and low-cost oxygen electrocatalysts for LOBs. | Yuan Yang Linna Dai Jianwei Qiu Zhibiao Hu Peng Wang Yongtao Zhao Huanhuan Guo Pengchao Si Rui Song | 2023 | Journal of Materials Science & Technology2023，，8： | 0 |
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