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| 1 | Risk assessment and validation of flood disaster based on fuzzy mathematics显示文摘Floods often take place around rivers and plains,which indicates a higher risk of flooding in these areas.This paper adopts fuzzy comprehensive assessment(FCA),simple fuzzy classification(SFC),and the fuzzy similarity method(FSM) to assess flood disaster risk in Kelantan,Malaysia.Validation data,such as the flooded area,paddy area,urban area,residential area,and refuges,were overlaid to validate and analyze the accuracy of flood disaster risk.The results show that(1) 70-75% of flooded areas lie within the higher and high-est risk zones,which shows an effective assessment accuracy;(2) paddy,built-up,and residential areas concentrated in the higher and highest risk zones are more likely to be destroyed by flood disasters;(3) 200-225 refuges in the higher and highest risk zones account for around 50% of all refuges,which means that more refuges should be built in the higher and highest risk zones to meet the accommodation requirement;(4) three methods proved to be feasible and effective in evaluating flood disaster risk,among which FCA is more suitable for the study area than the two other methods. | Weiguo Jiang Lei Deng Luyao Chen Jianjun Wu Jing Li | 2009 | Progress in Natural Science:Materials International2009,19,10: | 35 |
| 2 | Therapeutic effects of the artemisinin analog SM934 on lupus-prone MRLIIpr mice via inhibition of TLR-triggered B-cell activation and plasma cell formation显示文摘我们以前报导了那 SM934,水溶性的 artemisinin 衍生物,是在鼠科的豺狼座模型的一个可行处理。在当前的学习,我们进一步在豺狼座容易的 MRL/lpr 老鼠上调查了 SM934 的修改剂量政体的治疗学的效果并且在 B 房间回答上探索了它的效果,在全身的豺狼座 erythematosus (SLE ) 的一个中央病原的事件。当口头上地管理了时两次每日, SM934 显著地延长了 MRL/lpr 老鼠的寿命,改善 lymphadenopathy 症状并且减少浆液的层次反原子的抗体(言论集) 并且病原的 cytokines IL-6, IL-10 和 IL-21。而且, SM934 处理由增加静止 B 房间数字在 MRL/lpr 老鼠的怒气恢复了 B 房间分隔空间,维持幼芽的中心 B 房间数字,减少激活的 B 房间数字和减少的血浆房间(PC ) 数字。前 vivo, SM934 压制了触发的像使用费的受体(TLR ) B 房间的激活和增长,以及抗体分泌物。而且,现在的学习证明 SM934 由 downregulating TLR7/9 mRNA 表示, MyD88 蛋白质表示和 NF-κ 防碍 B 房间内在的小径; B phosphorylation。在人的外部血 mononuclear 房间(PBMC ) ,与在 MRL/lpr 鼠标的结果一致, SM934 禁止了联系 TLR 的 B 房间激活和 PC 区别。在结论, SM934 的两次每日的 dosing 政体由压制 B 房间激活和血浆房间形成在豺狼座容易的 MRL/lpr 老鼠上有治疗学的效果。 | Yanwei Wu Shijun He Bingxin Bai Luyao Zhang Lu Xue Zemin Lin Xiaoqian Yang Fenghua Zhu Peilan He Wei Tang Jianping Zuo | 2016 | Cellular & Molecular Immunology2016,13,3: | 31 |
| 3 | Cervical cancer: Epidemiology, risk factors and screening显示文摘Cervical cancer is one of the leading causes of cancer death among females worldwide and its behavior epidemiologically likes a venereal disease of low infectiousness. Early age at first intercourse and multiple sexual partners have been shown to exert strong effects on risk. The wide differences in the incidence among different countries also influenced by the introduction of screening. Although the general picture remains one of decreasing incidence and mortality, there are signs of an increasing cervical cancer risk probably due to changes in sexual behavior. Smoking and human papillomavirus(HPV) 16/18 are currently important issues in a concept of multifactorial, stepwise carcinogenesis at the cervix uteri. Therefore, society-based preventive and control measures, screening activities and HPV vaccination are recommended. Cervical cancer screening methods have evolved from cell morphology observation to molecular testing. High-risk HPV genotyping and liquid-based cytology are common methods which have been widely recommended and used worldwide. In future, accurate,cheap, fast and easy-to-use methods would be more popular. Artificial intelligence also shows to be promising in cervical cancer screening by integrating image recognition with big data technology. Meanwhile, China has achieved numerous breakthroughs in cervical cancer prevention and control which could be a great demonstration for other developing and resource-limited areas. In conclusion, although cervical cancer threatens female health, it could be the first cancer that would be eliminated by human beings with comprehensive preventive and control strategy. | Shaokai Zhang Huifeng Xu Luyao Zhang Youlin Qiao | 2020 | Chinese Journal of Cancer Research2020,32,6: | 25 |
| 4 | Distant eQTLs and Non-coding Sequences Play Critical Roles in Regulating Gene Expression and Quantitative Trait Variation in Maize显示文摘 | Haijun Liu Xin Luo Luyao Niu Yingjie Xiao Lu Chen Jie Liu Xiaqing Wang Minliang Jin Wenqiang Li Qinghua Zhang Jianbing Yan | 2017 | Molecular Plant2017,10,3: | 13 |
| 5 | SVM-DT-Based Adaptive and Collaborative Intrusion Detection显示文摘As a primary defense technique, intrusion detection becomes more and more significant since the security of the networks is one of the most critical issues in the world. We present an adaptive collaboration intrusion detection method to improve the safety of a network. A self-adaptive and collaborative intrusion detection model is built by applying the Environmentsclasses, agents, roles, groups, and objects(E-CARGO) model. The objects, roles, agents, and groups are designed by using decision trees(DTs) and support vector machines(SVMs), and adaptive scheduling mechanisms are set up. The KDD CUP 1999 data set is used to verify the effectiveness of the method. The experimental results demonstrate the feasibility and efficiency of the proposed collaborative and adaptive intrusion detection method. Also, the proposed method is shown to be more predominant than the methods that use a set of single type support vector machine(SVM) in terms of detection precision rate and recall rate. | Shaohua Teng Naiqi Wu Haibin Zhu Luyao Teng Wei Zhang | 2018 | IEEE/CAA Journal of Automatica Sinica2018,5,1: | 11 |
| 6 | Water blocking effect caused by the use of hydraulic methods for permeability enhancement in coal seams and methods for its removal显示文摘To research techniques for removing the water blocking effect caused by hydraulic applications in coal seams,the use of surfactants is proposed,based on the mechanics of the water blocking effect.Centrifugal experiments were used to validate the effects of using surfactants;the results show that after dealing with vacuum saturation with water,the volume of micropores decreases,which results in a larger average pore size,and the volume of transitional pores,mesopores,macropores and total pores increases.Based on the distribution of pore size,the operation mode of ‘‘water infusion after gas extraction,then continuing gas extraction' is recommended to improve the volume of coal mine gas drainage.When the reflectance of vitrinite in coal samples is less than 1,using the surfactants Fast T,1631,APG,BS can mitigate the damage caused by the water blocking effect.But when the reflectance of vitrinite is larger than 1.4,the damage caused by the water blocking effect can be increased.When the surfactant CMC is used in hydraulic applications,the capillary forces of coal samples are almost negative,which means the capillary force is in the same direction as the gas extraction.The direction of capillary forces benefits the gas flow.So,using CMC can play an active role in removing the water blocking effect.Centrifugal experiments confirm that using CMC can effectively remove the water blocking effect,which has a beneficial effect on improving the gas drainage volume. | Liu Qian Guo Yusen An Fenghua Lin Luyao Lai Yongming | 2016 | International Journal of Mining Science and Technology2016,26,4: | 8 |
| 7 | Sintilimab versus docetaxel as second-line treatment in advanced or metastatic squamous non-small-cell lung cancer:an open-label,randomized controlled phase 3 trial(ORIENT-3)显示文摘Background:Treatment options for Chinese patients with locally advanced or metastatic squamous-cell non-small-cell lung cancer(sqNSCLC)after failure of first-line chemotherapy are limited.This study(ORIENT-3)aimed to evaluate the efficacy and safety of sintilimab versus docetaxel as second-line treatment in patients with locally advanced or metastatic sqNSCLC.Methods:ORIENT-3 was an open-label,multicenter,randomized controlled phase 3 trial that recruited patients with stage IIIB/IIIC/IV sqNSCLC after failure with first-line platinum-based chemotherapy.Patients were randomized in a 1:1 ratio to receive either 200 mg of sintilimab or 75 mg/m^(2) of docetaxel intravenously every 3 weeks,stratified by the Eastern Cooperative Oncology Group performance status.The primary endpoint was overall survival(OS)in the full analysis set(FAS).Secondary endpoints included progression-free survival(PFS),objective response rate(ORR),disease control rate(DCR),duration of response(DoR)and safety.Results:Between August 25,2017,and November 7,2018,290 patients were randomized.For FAS,10 patients fromthe docetaxel armwere excluded.Themedian OS was 11.79(n=145;95%confidence interval[CI],10.28-15.57)months with sintilimab versus 8.25(n=135;95%CI,6.47-9.82)months with docetaxel(hazard ratio[HR]:0.74;95%CI,0.56-0.96;P=0.025).Sintilimab treatment significantly prolonged PFS(median 4.30 vs.2.79 months;HR:0.52;95%CI,0.39-0.68;P<0.001)and showed higher ORR(25.50%vs.2.20%,P<0.001)and DCR(65.50%vs.37.80%,P<0.001)than the docetaxel arm.The median DoRwas 12.45(95%CI,4.86-25.33)months in the sintilimab arm and 4.14(95%CI,1.41-7.23)months in the docetaxel arm(P=0.045).Treatment-related adverse events of grade≥3were reported in 26(18.1%)patients in the sintilimab arm and 47(36.2%)patients in the docetaxel arm.Exploratory biomarker analysis showed potential predictive values of expression levels of two transcription factors,including OVOL2(HR:0.35;P<0.001)and CTCF(HR:3.50;P<0.001),for sintilimab treatment.Conclusions:Compared with docetaxel,sintilimab significantly improved the OS,PFS,and ORR of Chinese patients with previously treated locally advanced or metastatic sqNSCLC. | Yuankai Shi Lin Wu Xinmin Yu Puyuan Xing Yan Wang Jianying Zhou Airong Wang Jianhua Shi Yi Hu Ziping Wang Guangyu An Yong Fang Sanyuan Sun Caicun Zhou Changli Wang Feng Ye Xingya Li Junye Wang Mengzhao Wang Yunpeng Liu Yanqiu Zhao Ying Yuan Jifeng Feng Zhendong Chen Jindong Shi Tao Sun Gang Wu Yongqian Shu Qisen Guo Yi Zhang Yong Song Shucai Zhang Yuan Chen Wei Li Hongrui Niu Wenwei Hu Lijun Wang Jianan Huang Yang Zhang Ying Cheng Zhengdong Wu Bo Peng Jiya Sun Christoph Mancao Yanqi Wang Luyao Sun | 2022 | Cancer Communications2022,42,12: | 8 |
| 8 | Unsteady aerodynamic characteristics of a horizontal wind turbine under yaw and dynamic yawing显示文摘Horizontal axis wind turbine(HAWT)often works under yaw due to the stochastic variation of wind direction.Yaw also can be used as one of control methods for load reduction and wake redirection of HAWT.Thus,the aerodynamic performance under yaw is very important to the design of HAWT.For further insight into the highly unsteady characteristics aerodynamics of HAWT under yaw,this paper investigates the unsteady variations of the aerodynamic performance of a small wind turbine under static yawed and yawing process with sliding grid method,as well as the there-dimensional effect on the unsteady characteristics,using unsteady Reynolds-averaged Navier-Stokes(URANS)simulations.The simulation results are validated with experimental data and blade element momentum(BEM)results.The comparisons show that the CFD results have better agreement with the experimental data than both BEM results.The wind turbine power decreases according to a cosine law with the increase of yaw angle.The torque under yaw shows lower frequency fluctuations than the non-yawed condition due to velocity component of rotation and the influence of spinner.Dynamic yawing causes larger fluctuate than static yaw,and the reason is analyzed.The aerodynamic fluctuation becomes more prominent in the retreating side than that in the advancing side for dynamic yawing case.Variations of effective angle of attack and aerodynamic forces along the blade span are analyzed.The biggest loading position moves from middle span to outer span with the increase of yaw angle.Three-dimensional stall effect presents load fluctuations at the inner board of blade,and becomes stronger with the increase of yaw angle. | Zhaoliang Ye Xiaodong Wang Ziwen Chen Luyao Wang | 2020 | Acta Mechanica Sinica2020,36,2: | 8 |
| 9 | Design and analysis of a truss deployable antenna mechanism based on a 3UU-3URU unit显示文摘Space deployable structures with large calibers, high accuracy, and large folding ratios are indispensable equipment in the aerospace field. Given that the single-DOF 3 RR-3 RRR deployable unit cannot be fully folded, this study proposes a 3 UU-3 URU deployable unit with two kinds of DOF: folding movement and orientation adjustment. First, based on the G-K formula, the DOF of the 3 UU-3 URU unit is analyzed. Then, the 3 UU-3 URU unit is used to construct a deployable truss antenna with a curved surface, and the DOF of the whole deployable antenna containing multiple 3 UU-3 URU units is calculated. The structural design of a deployable antenna with two loops is carried out with specific parameters and geometric relations. Next, a DOF simulation of a basic combination unit composed of three 3 UU-3 URU units is performed. Finally, a prototype of the basic combination unit is manufactured, and the DOF of the mechanism is experimentally verified. | Yundou XU Jinwei GUO Luyao GUO Wenlan LIU Jiantao YAO Yongsheng ZHAO | 2019 | Chinese Journal of Aeronautics2019,32,12: | 7 |
| 10 | The calcium-dependent protein kinase ZmCDPK7 functions in heat-stress tolerance in maize显示文摘Global warming poses a serious threat to crops.Calcium-dependent protein kinases(CDPKs)/CPKs play vital roles in plant stress responses,but their exact roles in plant thermotolerance remains elusive.Here,we explored the roles of heat-induced ZmCDPK7 in thermotolerance in maize.ZmCDPK7-overexpressing maize plants displayed higher thermotolerance,photosynthetic rates,and antioxidant enzyme activity but lower H2 O2 and malondialdehyde(MDA)contents than wild-type plants under heat stress.ZmCDPK7-knockdown plants displayed the opposite patterns.ZmCDPK7 is attached to the plasma membrane but can translocate to the cytosol under heat stress.ZmCDPK7 interacts with the small heat shock protein sHSP17.4,phosphorylates sHSP17.4 at Ser-44 and the respiratory burst oxidase homolog RBOHB at Ser-99,and up regulates their expression.Site-directed mutagenesis of sHSP17.4 to generate a Ser-44-Ala substitution reduced ZmCDPK7’s enhancement of catalase activity but enhanced ZmCDPK7’s suppression of MDA accumulation in heat-stressed maize protoplasts.sHSP17.4,ZmCDPK7,and RBOHB were less strongly upregulated in response to heat stress in the abscisic acid-deficient mutant vp5 versus the wild type.Pretreatment with an RBOH inhibitor suppressed sHSP17.4 and ZmCDPK7 expression.Therefore,abscisic acid-induced ZmCDPK7 functions both upstream and downstream of RBOH and participates in thermotolerance in maize by mediating the phosphorylation of sHSP17.4,which might be essential for its chaperone function. | Yulong Zhao Hanwei Du Yankai Wang Huali Wang Shaoyu Yang Chaohai Li Ning Chen Hao Yang Yihao Zhang Yulin Zhu Luyao Yang Xiuli Hu | 2021 | Journal of Integrative Plant Biology2021,63,3: | 6 |
| 11 | Application of nanotechnology in a silver/graphite contact material and optimization of its physical and mechanical properties显示文摘By applying nanotechnology, a new type of silver/graphite (AgC) electrical contact was fabricated and characterized. The AgC coating powders were obtained through high-energy ball milling and reducer liquid spraying-coating method. The as-prepared powders were examined by transmission electron microscope (TEM), scanning electron microscope (SEM), and X-ray diffraction (XRD). The results show that the thickness of graphite flakes milled for 10 h is about 50-60 nm and the AgC coating powders exhibit flocculent structure with quite fine and homogeneous internal rnicropores.XRD implies that the average crystalline size of silver in coating powders is about 50 nm. The mechanical and physical properties of this newly developed AgC contact made from the above-mentioned nanocrystalline powders by traditional powder metallurgy technique were measured. Compared with its counterparts made from other techniques, the properties of this new AgC contact have been optimized. High sm-face energy and high-energy interfaces of the nanocrystalline AgC coating powders provide powerful driving force for sintering densification. Moreover, the flocculent structure of the powders is also an important factor to acquire fine density ratio. | YUHaifeng LEIJingxuan MAXueming ZHULihui LUYao XIANGJing WENGWei | 2004 | Rare Metals2004,23,1: | 5 |
| 12 | Harnessing the native type I-B CRISPR-Cas for genome editing in a polyploid archaeon显示文摘Research on CRISPR-Cas(clustered regularly interspaced short palindromic repeats-CRISPR associated protein) systems has led to the revolutionary CRISPR/Cas9 genome editing technique. However, for most archaea and half of bacteria, exploitation of their native CRISPR-Cas machineries may be more straightforward and convenient. In this study, we harnessed the native type I-B CRISPR-Cas system for precise genome editing in the polyploid haloarchaeon Haloarcula hispanica. After testing different designs, the editing tool was optimized to be a single plasmid that carries both the self-targeting miniCRISPR and a 600-800 bp donor. Significantly, chromosomal modifications, such as gene deletion, gene tagging or single nucleotide substitution, were precisely introduced into the vast majority of the transformants. Moreover, we showed that simultaneous editing of two genomic loci could also be readily achieved by one step. In summary, our data demonstrate that the haloarchaeal CRISPR-Cas system can be harnessed for genome editing in this polyploid archaeon, and highlight the convenience and efficiency of the native CRISPR-based genome editing strategy. | Feiyue Cheng Luyao Gong Dahe Zhao Haibo Yang Jian Zhou Ming Li Hua Xiang | 2017 | Journal of Genetics and Genomics2017,44,11: | 5 |
| 13 | The role of recrystallization and grain growth in optimizing the sheet texture of magnesium alloys with calcium addition during annealing显示文摘The contribution of recrystallization and grain growth to the texture evolution in AZ31 alloy and a modified version AZ31+0.5 wt.%Ca was investigated utilizing a multi-step annealing process.The results showed that the addition of Ca triggered a considerable texture modification by increasing the texture spread and decreasing the overall texture intensity.This effect was found to be temperature dependent.When the annealing temperature remained lower than 450℃,a weak double peak texture with large basal pole tilt towards the RD was formed.This is correlated to microstructure observations of a large number of Ca-containing nano-sized particles that seemed to suppress grain growth below 450℃,which stabilized the weak recrystallization texture.This favorable texture was lost upon annealing at higher temperatures.In AZ31,recrystallization nuclei were found to preserve the orientation of their deformed parents,which offered limited potential to optimize the texture via annealing treatments.Grain growth of recrystallized grains resulted in a distinct sheet texture transition from a double-peak to a single-peak basal texture.Aspects of grain boundary energy and grain topology are discussed to explain the growth advantage of the sharp basal component over other orientations. | Fei Guo Risheng Pei Luyao Jiang Dingfei Zhang Sandra Korte-Kerzel Talal Al-Samman | 2020 | Journal of Magnesium and Alloys2020,8,1: | 4 |
| 14 | Development of Cryogenic Disinfectants Using in-18℃and-40℃Environments—Worldwide,2021显示文摘Introduction:Since the outbreak of coronavirus disease 2019(COVID-19)in Beijing Xinfadi Wholesale Market,a series of COVID-19 outbreaks has indicated the threat of transmission due to outer surfaces of objects under low temperatures.Therefore,2 kinds of chlorine-containing disinfectants for−18℃and−40℃were developed in order to solve the problem of low temperature disinfection.Methods:The properties of two cryogenic disinfectants were evaluated by low-temperature test.Staphylococcus aureus and Escherichia coli were used as two indicator microorganisms to evaluate the effects of the two cryogenic disinfectants in the laboratory and field tests according to Technical Specifications for Disinfection(2002 version)and Test method for bactericidal effect of disinfectants in laboratory(GB/T 38502-2020).Results:Two disinfectants could remain in the liquid state at−18℃or−40℃in 72 hours without crystallization and precipitation,and the average log values of microbial reduction before and after disinfection(the average killing log value)both on Staphylococcus aureus and Escherichia coli were>3 in the laboratory and field tests.Discussion:The results showed that these two disinfectants remained functional at low temperature to disinfect the packaging of imported cold chain food and surrounding packaging to prevent transmission of COVID-19 from material to people. | Huihui Sun Hongyang Duan Wei Zhang Chen Liang Luyao Li Yuan Lyu Yanyan Chen Jin Shen Liubo Zhang | 2021 | China CDC weekly2021,3,13: | 4 |
| 15 | Silicon lithium-ion battery anode with enhanced performance: Multiple effects of silver nanoparticles显示文摘Silicon has been regarded as one of the most promising next generation lithium-ion battery anode. However, the poor cyclic stability of the Si based anode has severely limited its practical applications, which is even worse with high mass loading density(>1 mg cm^(-2)). A new concept has been developed to enhance the electrochemical performance of the Si nanoparticle anode. Silver nanoparticles are composited with the silicon nanoparticles in a facile way for the first time. It is found that the mechanical properties of the Si electrode have been significantly improved by the incorporation of the silver nanoparticles, leading to enhanced cyclic performance. With the Si/Ag mass ratio of 4:1, the reversible specific discharge capacity is retained as 1156 m A h g^(-1) after 100 cycles at 200 mA g^(-1), which is more than three times higher than that of the bare silicon(318 mA h g^(-1)). The rate performance has been effectively improved as well due to excellent electron conductivity of the silver nanoparticles. | Shanshan Yin Qing Jia Xiuxia Zuo Shuang Xie Kai Fang Yonggao Xia Jinlong Li Bao Qiu Meimei Wang Jianzhen Ban Xiaoyan Wang Yi Zhang Ying Xiao Luyao Zheng Suzhe Liang Zhaoping Liu Cundong Wang Ya-Jun Cheng | 2018 | Journal of Materials Science & Technology2018,34,10: | 4 |
| 16 | Impacts of Park Landscape Structure on Thermal Environment Using QuickBird and Landsat Images显示文摘Urban parks composed mostly of vegetation and water bodies can effectively mitigate the urban heat island effect. Many studies have investigated the cooling effects of urban parks; however, little attention has been given to park landscape structure. Based on landscape metrics, this study has explored the influences of the park landscape structure on its inner thermal environment, taking heavily urbanized Beijing Municipality in China as the study area. Three indices, including the percentage of landscape(PLAND), landscape shape index(LSI) and aggregation index(AI), were used to measure the composition and configuration characteristics of the landscape components inside the parks. The indices were calculated for five landscape types being interpreted from Quickbird images. Urban thermal conditions were measured using the land surface temperature(LST) derived from Landsat TM images. The results showed that the park LST had a negative relationship with the park size, but no significant relationship was found with park shape. For the park's interior landscape, however, the configuration and composition characteristics of the landscape components inside the park explained 70% of the park LST variance. The area percentage of water bodies and the aggregation index of woodland were identified as the key influencing characteristics. In addition, when the composition and configuration characteristics of the park landscape components were separately considered, the configuration characteristics(LSI and AI) explained approximately 54% of the variance in park LST, which was comparable with that explained by the composition characteristics(PLAND). Thus, this study suggested that an effective and practical way for urban cooling park design is the optimization of spatial configuration of landscape components inside the park. | XU Xinliang CAI Hongyan QIAO Zhi WANG Liang JIN Cui GE Yaning WANG Luyao XU Fengjiao | 2017 | Chinese Geographical Science2017,27,5: | 4 |
| 17 | Chromosome doubling of Sedum alfredii Hance: A novel approach for improving phytoremediation efficiency显示文摘Sedum alfredii Hance is a cadmium(Cd)/zinc(Zn)hyperaccumulator native to China.However,its relatively low biomass restricted the large-scale application for heavy metal contamination remediation.The chromosome set doubling of S.alfredii in vitro was achieved by 0.1%–0.2%(W/V)colchicine treatment.The plant DNA ploidy was analyzed by flow cytometry and chromosome set doubling plants(CSD)were identified based on the obvious different sharp peak.A tissue culture experiment with different Cd treated levels and a field trial with natural polluted mined soil were conducted to study the effects of chromosome doubling on plant biomass and Cd accumulation in shoots.The results suggested that S.alfredii is a mixoploid.Compared with the wild type plants(WT),CSD exhibited typical'gigas'characteristics in morphology including stem thickness,root hair production,number of leaves and size of stoma guard cell.Fresh weight and dry weight of CSD were increased to 1.62–2.03-fold and 2.26–3.25-fold of WT.And Cd content of CSD showed a17.49%–42.82%increase and 59%increase under tissue culture and field condition,accordingly.In addition,the TF and in BCF of CSD were 2.37-and 1.59-fold of WT,respectively.These results proved that it is feasible to promote phytoextraction efficiency of S.alfredii in Cd contaminated soils through chromosomal engineering,which provides a novel approach for hyperaccumulator application in phytoremediation. | Ying Feng Qiong Wang Qian Meng Yongjun Liu Fengshan Pan Sha Luo Yingjie Wu Luyao Ma Xiaoe Yang | 2019 | Journal of Environmental Sciences2019,31,12: | 4 |
| 18 | Toxicity and mechanisms of action of titanium dioxide nanoparticles in living organisms显示文摘Titanium dioxide nanoparticles(TiO_2 NPs) are one of the most widely used nanomaterials in the consumer products, agriculture, and energy sectors. Their large demand and widespread applications will inevitably cause damage to organisms and ecosystems. A better understanding of TiO_2 NP toxicity in living organisms may promote risk assessment and safe use practices of these nanomaterials. This review summarizes the toxic effects of TiO_2 NPs on multiple taxa of microorganisms, algae, plants, invertebrates, and vertebrates. The mechanism of TiO_2 NP toxicity to organisms can be outlined in three aspects: The Reactive Oxygen Species(ROS)produced by TiO_2 NPs following the induction of electron–hole pairs; cell wall damage and lipid peroxidation of the cell membrane caused by NP-cell attachment by electrostatic force owing to the large surface area of TiO_2 NPs; and TiO_2 NP attachment to intracellular organelles and biological macromolecules following damage to the cell membranes. | Jing Hou Luyao Wang Chunjie Wang Songlin Zhang Haiqiang Liu Shiguo Li Xiangke Wang | 2019 | Journal of Environmental Sciences2019,31,1: | 4 |
| 19 | Feasibility study for joint retrieval of air density and ozone concentration profiles in the mesosphere using an ultraviolet limb-scan technique显示文摘For joint retrieval of vertical distributions of both air density and ozone concentration in the mesosphere which are two of the most important atmospheric parameters in this region,a retrieval scheme is suggested by using satellite limb scan observation at two UV wavelengths,i.e. 255 nm and 296 nm . The retrieval scheme is the modification of the direct method by Aruga and Heath with two UV wavelengths and two atmospheric parameters. Feasibility study was made based on simulated limb scan radiances computed with a single scattering radiative transfer algorithms of spherical geometry developed by the present authors and the inversion technique. Results of the simulations show that it is feasible to retrieve air density and ozone concentration vertical distributions on a global basis from satellite UV limb scan over the altitude range of 50 km ~ 100 km with a vertical resolution of 1 km. The errors of the inferred profiles by using the joint inversion algorithm are greatly deduced,especially in the upper-mesosphere heights,compared with those by using the single inversion technique with a single wavelength. | GUOXia LUYao LU^eDaren | 2004 | Progress in Natural Science:Materials International2004,14,6: | 3 |
| 20 | Clinical phenotype of a Chinese patient with RIPK1 deficiency due to novel mutation显示文摘Accumulating evidence indicates that RIPK1 is associated with inflammation and apoptotic.RIPK1 deficiency leads to proinflammatory signaling impaired.However,only few patients with homozygous loss-of-function mutation in RIPK1 gene had been reported until now.Here,we report a Chinese combined immunodeficiency patient.He had recurrent infection,diarrhea after 3 months old.Immune function indicated that T,B and NK cells decreased significantly but immunoglobulins approximately remained normal.Whole-exome sequencing indicated that he had novel compound heterozygous mutations(c.998 C>A from his mother and c.1934 C>T from his father)in RIPK1 gene,which were confirmed by Sanger sequencing.Our study reports novel mutations in RIPK1 gene and new phenotype of patient with RIPK1 deficiency. | Li Lin Ying Wang Luyao Liu Wenjing Ying Wenjie Wang Bijun Sun Jinqiao Sun Xiaochuan Wang | 2020 | Genes & Diseases2020,7,1: | 3 |