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| 1 | The Sunway TaihuLight supercomputer: system and applications显示文摘The Sunway Taihu Light supercomputer is the world's first system with a peak performance greater than 100 PFlops. In this paper, we provide a detailed introduction to the Taihu Light system. In contrast with other existing heterogeneous supercomputers, which include both CPU processors and PCIe-connected many-core accelerators(NVIDIA GPU or Intel Xeon Phi), the computing power of Taihu Light is provided by a homegrown many-core SW26010 CPU that includes both the management processing elements(MPEs)and computing processing elements(CPEs) in one chip. With 260 processing elements in one CPU, a single SW26010 provides a peak performance of over three TFlops. To alleviate the memory bandwidth bottleneck in most applications, each CPE comes with a scratch pad memory, which serves as a user-controlled cache. To support the parallelization of programs on the new many-core architecture, in addition to the basic C/C++and Fortran compilers, the system provides a customized Sunway Open ACC tool that supports the Open ACC2.0 syntax. This paper also reports our preliminary efforts on developing and optimizing applications on the Taihu Light system, focusing on key application domains, such as earth system modeling, ocean surface wave modeling, atomistic simulation, and phase-field simulation. | Haohuan FU Junfeng LIAO Jinzhe YANG Lanning WANG Zhenya SONG Xiaomeng HUANG Chao YANG Wei XUE Fangfang LIU Fangli QIAO Wei ZHAO Xunqiang YIN Chaofeng HOU Chenglong ZHANG Wei GE Jian ZHANG Yangang WANG Chunbo ZHOU Guangwen YANG | 2016 | Science China(Information Sciences)2016,59,7: | 45 |
| 2 | Extract of Naotaifang, a compound Chinese herbal medicine, protects neuron ferroptosis induced by acute cerebral ischemia in rats显示文摘Objective:Our previous research showed that Naotaifang(a compound traditional Chinese herbal medicine)extract(NTE)has clinically beneficial effects on neurological improvement of patients with acute cerebral ischemia.In this study,we investigated whether NTE protected acute brain injury in rats and whether its effects on ferroptosis could be linked to the dysfunction of glutathione peroxidase 4(GPX4)and iron metabolism.Methods:We established an acute brain injury model of middle cerebral artery occlusion(MCAO)in rats,in which we could observe the accumulation of iron in neurons,as detected by Perl’s staining.Using assay kits,we measured expression levels of ferroptosis biomarkers,such as iron,glutathione(GSH),reactive oxygen species(ROS)and malonaldehyde(MDA);further the expression levels of transferrin receptor1(TFR1),divalent metal transporter 1(DMT1),solute carrier family 7 member 11(SLC7 A11)and GPX4 were determined using immunohistochemical analysis,real-time quantitative polymerase chain reaction and Western blot assays.Results:We found that treatment with NTE reduced the expression levels of TFR1 and DMT1,reduced ROS,MDA and iron accumulation and reduced neurobehavioral scores,relative to untreated MCAO rats.Treatment with NTE increased the expression levels of SLC7 A11,GPX4 and GSH,and the number of Nissl bodies in the MCAO rats.Conclusion:Taken together,our data suggest that acute cerebral ischemia induces neuronal ferroptosis and the effects of treating MCAO rats with NTE involved inhibition of ferroptosis through the TFR1/DMT1 and SCL7 A11/GPX4 pathways. | Bin Lan Jin-wen Ge Shao-wu Cheng Xi-long Zheng Jun Liao Chao He Zheng-qing Rao Guo-zuo Wang | 2020 | Journal of Integrative Medicine2020,18,4: | 37 |
| 3 | Long-term follow-up of the effects of fecal microbiota transplantation in combination with soluble dietary fiber as a therapeutic regimen in slow transit constipation显示文摘As some studies have reported that strategies targeting the gut microbiota such as fecal microbiota transplantation(FMT) with or without other microecological therapy might have efficacy in treating slow transit constipation(STC), we conducted a singlecenter, open-label trial to study the long-term effect of FMT combined with soluble dietary fiber(pectin) on STC. Thirty-one adult patients with STC were enrolled into the trial. Patients received 6-day FMT procedures repeatedly for the first 3 months and soluble dietary fiber(pectin) daily during the follow-up. The rate of clinical remission and improvement, stool consistency, the Wexner constipation scale, and assessment of constipation-related symptoms were evaluated at week 4 and 1 year later. The clinical remission and improvement rates at week 4 were 69.0%(20/29) and 75.9%(22/29), respectively. At the end of the study,48.3%(14/29) of patients continued to have at least three complete spontaneous bowel movements per week and 58.6%(17/29)of patients showed clinical improvements. Stool consistency, the Wexner constipation scale, and constipation symptoms improved both at short-term and long-term follow-up. The results indicated that FMT in combination with soluble dietary fiber(pectin) had both short-term and long-term efficacy in treating STC. | Xueying Zhang Hongliang Tian Lili Gu Yongzhan Nie Chao Ding Xiaolong Ge Bo Yang Jianfeng Gong Ning Li | 2018 | Science China(Life Sciences)2018,61,7: | 33 |
| 4 | Infection with novel coronavirus(SARS-CoV-2)causes pneumonia in Rhesus macaques显示文摘The 2019 novel coronavirus(SARS-CoV-2)outbreak is a major challenge for public health.SARS-CoV-2 infection in human has a broad clinical spectrum ranging from mild to severe cases,with a mortality rate of^6.4%worldwide(based on World Health Organization daily situation report).However,the dynamics of viral infection,replication and shedding are poorly understood.Here,we show that Rhesus macaques are susceptible to the infection by SARS-CoV-2.After intratracheal inoculation,the first peak of viral RNA was observed in oropharyngeal swabs one day post infection(1 d.p.i.),mainly from the input of the inoculation,while the second peak occurred at 5 d.p.i.,which reflected on-site replication in the respiratory tract.Histopathological observation shows that SARS-CoV-2 infection can cause interstitial pneumonia in animals,characterized by hyperemia and edema,and infiltration of monocytes and lymphocytes in alveoli.We also identified SARS-CoV-2 RNA in respiratory tract tissues,including trachea,bronchus and lung;and viruses were also re-isolated from oropharyngeal swabs,bronchus and lung,respectively.Furthermore,we demonstrated that neutralizing antibodies generated from the primary infection could protect the Rhesus macaques from a second-round challenge by SARS-CoV-2.The non-human primate model that we established here provides a valuable platform to study SARS-CoV-2 pathogenesis and to evaluate candidate vaccines and therapeutics. | Chao Shan Yan-Feng Yao Xing-Lou Yang Yi-Wu Zhou Ge Gao Yun Peng Lian Yang Xue Hu Jin Xiong Ren-Di Jiang Hua-Jun Zhang Xiao-Xiao Gao Cheng Peng Juan Min Ying Chen Hao-Rui Si Jia Wu Peng Zhou Yan-Yi Wang Hong-Ping Wei Wei Pang Zheng-Fei Hu Long-Bao Lv Yong-Tang Zheng Zheng-Li Shi Zhi-Ming Yuan | 2020 | Cell Research2020,30,8: | 19 |
| 5 | Identification of differentially expressed microRNAs by microarray: a possible role for microRNAs gene in medulloblastomas显示文摘背景 MicroRNAs (miRNAs ) 是小 noncoding 其异常表示可以在许多恶意被观察的规章的 RNA。然而,很少数据在人的主要 medulloblastomas 上是还可得到的。这个工作试图识别那,并且在 carcinogenesis.Methods 期间探索一个可能的角色 miRNAs 将异常地从一样的病人与非肿胀的小脑纸巾相比在肿瘤纸巾被表示高产量 microRNA microarray 在人的主要 medulloblastoma 标本被执行调查差别表示 miRNAs ,并且某 miRNAs 用即时量的 RT-PCR 方法被验证。另外,为大多数的预言的目标基因显著地击倒 -- 或起来调整的 miRNAs 被分析由用最新修改的整体 algorithm.Results,九 miRNA 种是在 medulloblastoma 标本对正常非肿胀的小脑纸巾表示的差别。这些, 4 完了表示, 5 在下面表示。变化从 0.02 褶层到 6.61 褶层。这些调查结果为新奇并且一直不是的很重要的 deregulated miRNAs (miR-17, rniR-lO0, miR-lO6b,和 miR-218 ) 用即时量的 RT-PCR 被证实以前出版了。有趣地,大多数为这些 miRNAs 的预言的目标基因涉及 medulloblastoma carcinogenesis.Conclusions MiRNAs 差别在人的 medulloblastoma 和非肿胀的小脑织物之间被表示。MiRNAs 可以在 medulloblastoma 的 tumorigenesis 起一个作用并且也许在未来为新奇治疗学的策略用作潜在的目标。 | LIU Wei GONG Yan-hua CHAO Teng-fei PENG Xiao-zhong YUAN Jian-gang MA Zhen-yu JIA Ge ZHAO Ji-zong | 2009 | Chinese Medical Journal2009,,20: | 15 |
| 6 | Topology optimization of compliant adaptive wing leading edge with composite materials显示文摘An approach for designing the compliant adaptive wing leading edge with composite material is proposed based on the topology optimization. Firstly, an equivalent constitutive relationship of laminated glass fiber reinforced epoxy composite plates has been built based on the symmetric laminated plate theory. Then, an optimization objective function of compliant adaptive wing leading edge was used to minimize the least square error(LSE) between deformed curve and desired aerodynamics shape. After that, the topology structures of wing leading edge of different glass fiber ply-orientations were obtained by using the solid isotropic material with penalization(SIMP) model and sensitivity filtering technique. The desired aerodynamics shape of compliant adaptive wing leading edge was obtained based on the proposed approach. The topology structures of wing leading edge depend on the glass fiber ply-orientation. Finally, the corresponding morphing experiment of compliant wing leading edge with composite materials was implemented, which verified the morphing capability of topology structure and illustrated the feasibility for designing compliant wing leading edge. The present paper lays the basis of ply-orientation optimization for compliant adaptive wing leading edge in unmanned aerial vehicle(UAV) field. | Tong Xinxing Ge Wenjie Sun Chao Liu Xiaoyong | 2014 | Chinese Journal of Aeronautics2014,27,6: | 12 |
| 7 | Landscape of DILI-related adverse drug reaction in China Mainland显示文摘Drug-induced liver injury(DILI)is a type of bizarre adverse drug reaction(ADR)damaging liver(L-ADR)which may lead to substantial hospitalizations and mortality.Due to the general low incidence,detection of L-ADR remains an unsolved public health challenge.Therefore,we used the data of 6.673 million of ADR reports from January 1st,2012 to December 31st,2016 in China National ADR Monitoring System to establish a new database of L-ADR reports for future investigation.Results showed that totally 114,357 ADR reports were retrieved by keywords searching of liver-related injuries from the original heterogeneous system.By cleaning and standardizing the data fields by the dictionary of synonyms and English translation,we resulted 94,593 ADR records reported to liver injury and then created a new database ready for computer mining.The reporting status of L-ADR showed a persistent 1.62-fold change over the past five years.The national population-adjusted reporting numbers of L-ADR manifested an upward trend with age increasing and more evident in men.The annual reporting rate of L-ADR in age group over 80 years old strikingly exceeded the annual DILI incidence rate in general population,despite known underreporting situation in spontaneous ADR reporting system.The percentage of herbal and traditional medicines(H/TM)L-ADR reports in the whole number was 4.5%,while 80.60%of the H/TM reports were new findings.There was great geographical disparity of reported agents,i.e.more cardiovascular and antineoplastic agents were reported in higher socio-demographic index(SDI)regions and more antimicrobials,especially antitubercular agents,were reported in lower SDI regions.In conclusion,this study presented a large-scale,unbiased,unified,and computer-minable L-ADR database for further investigation.Age-,sex-and SDI-related risks of L-ADR incidence warrant to emphasize the precise pharmacovigilance policies within China or other regions in the world. | Jiabo Wang Haibo Song Feilin Ge Peng Xiong Jing Jing Tingting He Yuming Guo Zhuo Shi Chao Zhou Zixin Han Yanzhong Han Ming Niu Zhaofang Bai Guangbin Luo Chuanyong Shen Xiaohe Xiao | 2022 | Acta Pharmaceutica Sinica B2022,12,12: | 12 |
| 8 | Recent progress in 2D materials for flexible supercapacitors显示文摘High performance supercapacitors coupled with mechanical flexibility are needed to drive flexible and wearable electronics that have anesthetic appeal and multi-functionality. Two dimensional(2D) materials have attracted attention owing to their unique physicochemical and electrochemical properties, in addition to their ability to form hetero-structures with other nanomaterials further improving mechanical and electrochemical properties. After a brief introduction of supercapacitors and 2D materials, recent progress on flexible supercapacitors using 2D materials is reviewed. Here we provide insights into the structure–property relationships of flexible electrodes, in particular free-standing films. We also present our perspectives on the development of flexible supercapacitors. | Yan Han Yu Ge Yunfeng Chao Caiyun Wang Gordon G.Wallace | 2018 | Journal of Energy Chemistry2018,27,1: | 11 |
| 9 | Effects of planting methods on yield and quality of different types of japonica rice in northern Jiangsu plain, China显示文摘Mechanical transplanting with carpet seedlings(MC) and mechanical direct seeding(MD) are newly developed planting methods, which increase in popularity and planted area each year. Knowing the difference for yield and rice quality under different planting methods is of great importance for the development of high quality and yield cultivation techniques under mechanical conditions. Therefore, three kinds of japonica rice including hybrid japonica rice, inbreed japonica rice, and soft rice were adopted as materials. And the differences in the quality of processing, appearance, cooking and eating quality, nutrition, and the rapid viscosity analyzer(RVA) profile were studied to reveal the effects of planting methods on yield and quality of different types of japonica rice. Results showed that the milled rice and head rice rates under MC was significantly higher than those under MD, and the processing quality of inbreed japonica rice was the most stable. Compared with MC, length/width ratio of rice under MD was significantly increased, and chalkiness rate, size, and degree were significantly decreased. The protein content under MD was lower than that under MC. MC showed higher peak viscosity and breakdown value than MD. The taste value was the greatest for soft rice, followed by inbreed japonica rice, and then by japonica hybrid rice, with no significant differences resulting from planting methods. Compared with MC, MD significantly improved the appearance quality, though processing quality and nutritional quality were decreased. And there was no significant difference in cooking and eating quality between MC and MD. Under different planting methods, the appearance quality of inbreed japonica rice changed the most and the processing quality was the most stable. The nutritional, cooking and eating quality of soft rice changed the least. Therefore, according to the different planting methods and market needs, selecting the appropriate rice varieties can reduce the risks in rice production and achieve good rice quality. | BIAN Jin-long XU Fang-fu HAN Chao QIU Shi GE Jia-lin XU Jing ZHANG Hong-cheng WEI Hai-yan | 2018 | Journal of Integrative Agriculture2018,17,12: | 11 |
| 10 | Dual-Material Electron Beam Selective Melting:Hardware Development and Validation Studies显示文摘Electron beam selective melting(EBSM) is an additive manufacturing technique that directly fabricates three-dimensional parts in a layerwise fashion by using an electron beam to scan and melt metal powder. In recent years, EBSM has been successfully used in the additive manufacturing of a variety of materials. Previous research focused on the EBSM process of a single material. In this study, a novel EBSM process capable of building a gradient structure with dual metal materials was developed, and a powder-supplying method based on vibration was put forward. Two different powders can be supplied individually and then mixed. Two materials were used in this study: Ti6Al4 V powder and Ti47Al2Cr2 Nb powder. Ti6Al4 V has excellent strength and plasticity at room temperature, while Ti47Al2Cr2 Nb has excellent performance at high temperature, but is very brittle. A Ti6Al4V/Ti47Al2Cr2 Nb gradient material was successfully fabricated by the developed system. The microstructures and chemical compositions were characterized by optical microscopy, scanning microscopy, and electron microprobe analysis. Results showed that the interface thickness was about 300 μm. The interface was free of cracks, and the chemical compositions exhibited a staircase-like change within the interface. | Chao Guo Wenjun Ge Feng Lin | 2015 | Engineering2015,1,1: | 11 |
| 11 | Impacts of continuously regenerating trap and particle oxidation catalyst on the NO_2 and particulate matter emissions emitted from diesel engine显示文摘Two continuously regenerating diesel particulate filter(CRDPF) with different configurations and one particles oxidation catalyst(POC) were employed to perform experiments in a controlled laboratory setting to evaluate their effects on NO 2,smoke and particle number emissions.The results showed that the application of the after-treatments increased the emission ratios of NO 2 /NOx significantly.The results of smoke emissions and particle number(PN) emissions indicated that both CRDPFs had sufficient capacity to remove more than 90% of total particulate matter(PM) and more than 97% of solid particles.However,the POC was able to remove the organic components of total PM,and only partially to remove the carbonaceous particles with size less than 30 nm.The negligible effects of POC on larger particles were observed due to its honeycomb structure leads to an inadequate residence time to oxidize the solid particles or trap them.The particles removal efficiencies of CRDPFs had high degree of correlations with the emission ratio of NO 2 /NOx.The PN emission results from two CRDPFs indicated that more NO 2 generating in diesel oxidation catalyst section could obtain the higher removal efficiency of solid particles.However this also increased the risk of NO 2 exposure in atmosphere. | Zhihua Liu Yunshan Ge Jianwei Tan Chao He Asad Naeem Shah Yan Ding LinxiaoYu Wei Zhao | 2012 | Journal of Environmental Sciences2012,24,4: | 11 |
| 12 | Experimental cancer gene therapy by multiple anti-survivin hammerhead ribozymes显示文摘为癌症改进基因治疗的功效,我们设计了指向 survivin mRNA 的暴露的区域的四撞木鲛 ribozyme 侵入人体气管粘膜的病菌(到 R4 的 R1 ) 。除了在里面 vitro 描述,由教材扩展包括了劈开的顺序特性的一颗决心,为细胞增长并且为的试金在 vivo 肿瘤,生长被用来为 ribozyme 效率得分。survivin 表示的产生抑制经由 caspase-3-dependent 小径导致了有丝分裂的大祸和房间死亡。重要地, ribozyme 侵入人体气管粘膜的病菌的管理在一个 hepato 细胞的癌异种皮移植老鼠模型禁止了肿瘤生长。R1, R3 和 R4 ribozymes 的合作表示 synergistically 压制了 survivin 并且当这联合指向 survivin 抄本的所有主要形式,生产了大多数有势力反癌症效果。带在这份报告描述的多重撞木鲛 ribozymes 的侵入人体气管粘膜的病菌对癌症提供了柔韧的基因治疗策略。 | Qi Fei Hongyu Zhang Lili Fu Xinlan Dai Baomei Gao Min Ni Chao Ge Jinjun Li Xia Ding Yuwen Ke Xuebiao Yao Jingde Zhu | 2008 | Acta Biochimica et Biophysica Sinica2008,40,6: | 10 |
| 13 | Experimental investigation on enhanced damage to fuel tanks by reactive projectiles impact显示文摘Enhanced damage to the full-filled fuel tank,impacted by the cold pressed and sintered PTFE/Al/W reactive material projectile(RMP)with a density of 7.8 g/cm3,is investigated experimentally and theoretically.The fuel tank is a rectangular structure,welded by six pieces of 2024 aluminum plate with a thickness of 6 mm,and filled with RP-3 aviation kerosene.Experimental results show that the kerosene is ignited by the RMP impact at a velocity above 1062 m/s,and a novel interior ignition phenomenon which is closely related to the rupture effect of the fuel tank is observed.However,the traditional steel projectile with the same mass and dimension requires a velocity up to 1649 m/s to ignite the kerosene.Based on the experimental results,the radial pressure field is considered to be the main reason for the shear failure of weld.For mechanism considerations,the chemical energy released by the RMP enhances the hydrodynamic ram(HRAM)effect and provides additional ignition sources inside the fuel tank,thereby enhancing both rupture and ignition effects.Moreover,to further understand the enhanced ignition effect of RMP,the reactive debris temperature inside the kerosene is analyzed theoretically.The initiated reactive debris with high temperature provides effective interior ignition sources to ignite the kerosene,resulting in the enhanced ignition of the kerosene. | Hai-fu Wang Jian-wen Xie Chao Ge Huan-guo Guo Yuan-feng Zheng | 2021 | Defence Technology(防务技术)2021,17,2: | 9 |
| 14 | Prioritizing natural-selection signals from the deep-sequencing genomic data suggests multi-variant adaptation in Tibetan highlanders显示文摘Human genetic adaptation to high altitudes(>2500 m)has been extensively studied over the last few years,but few functional adaptive genetic variants have been identified,largely owing to the lack of deep-genome sequencing data available to previous studies.Here,w e build a list of putative adaptive variants,including 63 missense,7 loss-of-function;1,298 evolutionarily conserved variants and 509 expression quantitative traits loci.Notably,the top signal of selection is located in TMEM 247,a transmembrane protein-coding gene.The Tibetan version of TMEM 247 harbors one high-frequency(76.3%)missense variant,rsl 16983452(c.248C>T;p.Ala83Val);with the T allele derived from archaic ancestry and carried by>94%of Tibetans but absent or in low frequencies(<3%)in non-Tibetan populations.The rsl 16983452-T is strongly and positively correlated with altitude and significantly associated with reduced hemoglobin concentration(p=5.78×10^-5),red blood cell count(p=5.72×10^-7)and hematocrit(p=2.57×10^-6).In particular,TMEM247-rs 116983452 shows greater effect size and better predicts the phenotypic outcome than any E P A S1 variants in association with adaptive traits in Tibetans.Modeling the interaction between TM£M247-rsl 16983452 and EPAS1 variants indicates weak but statistically significant epistatic effects.Our results support that multiple variants may jointly deliver the fitness of the Tibetans on the plateau,where a complex model is needed to elucidate the adaptive evolution mechanism. | Lian Deng Chao Zhang Kai Yuan Yang Gao Yuwen Pan Xueling Ge Yaoxi He Yuan Yuan Yan Lu Xiaoxi Zhang Hao Chen Haiyi Lou Xiaoji Wang Dongsheng Lu Jiaojiao Liu Lei Tian Qidi Feng Asifullah Khan Yajun Yang Zi-Bing Jin Jian Yang Fan Lu Jia Qu Longli Kang Bing Su Shuhua Xu | 2019 | National Science Review2019,6,6: | 9 |
| 15 | Catastrophic Debris Flows on July 10^(th) 2013 along the Min River in Areas Seriously-hit by the Wenchuan Earthquake显示文摘Over 240 debris flows occurred in hillslopes, gullies( indicated those with single-channel)and watersheds(indicated those with tributaries and channels) on July 10 th 2013 in the Wenchuan county,and caused 29 casualties and about 633×106 USD losses. This work aimed to analyze characteristics,hazards and causes of these events and explore mitigating measures based on field investigation and remote sensing images interpretation. The debris flows contained clay content of 0.1%~3.56%, having densities of 1.72~2.14 t/m3, velocities of 5.0~12.7 m/s,discharges of 335~2353 m3/s and sediment yields of0.10~1.26×106 m3, and also numerously occurred in large watersheds with the area over 10 km2. Large debris flows formed 3 hazard-chains in slopes, gullies,watersheds and rivers, which all evolved in dammed lakes and outburst flood, and 26 dammed lakes and10 newly ones were generated along the rivers of Min and Yuzi. The remarkable spatial difference of loose solid materials accumulation and intense rainfall,with the cumulative of about or more than 150 mm and the hourly of over 16 mm, caused debris flows in the sections from Yingxiu to Miansi and Gengda. The damages on buildings, reconstructions, highways,factories and hydro power station originated from the impacting, scouring, burying of debris flows, the submerging of dammed lake and the scouring of outburst flood, and the huge losses came from the ruinous destructions of control engineering works of debris flows as well as the irrational location and lowresistant capabilities of reconstructions. For hazards mitigating of debris flows in long term, the feasible measures for short term, including risk-reassessing of foregone and potential hazard sites, regional alarming system establishing and integrated control in disastrous sites, and middle-long term, including improving reconstruction standard, rationally disposing river channel bed rise and selecting appropriate reconstruction time and plans, were strongly suggested. | GE Yong-gang CUI Peng ZHANG Jian-qiang ZENG Chao SU Feng-huan | 2015 | Journal of Mountain Science2015,12,1: | 8 |
| 16 | Geometrical feature analysis and disaster assessment of the Xinmo landslide based on remote sensing data显示文摘At 5:39 am on June 24, 2017, a landslide occurred in the village of Xinmo in Maoxian County, Aba Tibet and Qiang Autonomous Prefecture(Sichuan Province, Southwest China). On June 25, aerial images were acquired from an unmanned aerial vehicle(UAV), and a digital elevation model(DEM) was processed. Landslide geometrical features were then analyzed. These are the front and rear edge elevation, accumulation area and horizontal sliding distance. Then, the volume and the spatial distribution of the thickness of the deposit were calculated from the difference between the DEM available before the landslide, and the UAV-derived DEM collected after the landslide. Also, the disaster was assessed using high-resolution satellite images acquired before the landslide. These include Quick Bird, Pleiades-1 and GF-2 images with spatial resolutions of 0.65 m, 0.70 m, and 0.80 m, respectively, and the aerial images acquired from the UAV after the landslide with a spatial resolution of 0.1 m. According to the analysis, the area of the landslide was 1.62 km2, and the volume of the landslide was 7.70 ± 1.46 million m3. The average thickness of the landslide accumulation was approximately 8 m. The landslide destroyed a total of 103 buildings. The area of destroyed farmlands was 2.53 ha, and the orchard area was reduced by 28.67 ha. A 2-km section of Songpinggou River was blocked and a 2.1-km section of township road No. 104 was buried. Constrained by the terrain conditions, densely populated and more economically developed areas in the upper reaches of the Minjiang River basin are mainly located in the bottom of the valleys. This is a dangerous area regarding landslide, debris flow and flash flood events Therefore, in mountainous, high-risk disaster areas, it is important to carefully select residential sites to avoid a large number of casualties. | FAN Jian-rong ZHANG Xi-yu SU Feng-huan GE Yong-gang Paolo TAROLLI YANG Zheng-yin ZENG Chao ZENG Zhen | 2017 | Journal of Mountain Science2017,14,9: | 8 |
| 17 | Inositol Pyrophosphate lnsP8 Acts as an Intracellular Phosphate Signal in Arabidopsis显示文摘The maintenance of cellular phosphate(Pi)homeostasis is of great importance in living organisms.The SPX domain-containing protein 1(SPX1)proteins from both Arabidopsis and rice have been proposed to act as sensors of Pi status.The molecular signal indicating the cellular Pi status and regulating Pi homeostasis in plants,however,remains to be identified,as Pi itself does not bind to the SPX domain.Here,we report the identification of the inositol pyrophosphate lnsP8 as a signaling molecule that regulates Pi homeostasis in Arabidopsis.Polyacrylamide gel electrophoresis profiling of InsPs revealed that lnsP8 level positively correlates with cellular Pi concentration.We demonstrated that the homologs of diphosphoinositol pentaki-sphosphate kinase(PPIP5K),VIH1 and VIH2,function redundantly to synthesize lnsP8,and that the vih1 vih2 double mutant overaccumulates Pi.SPX1 directly interacts with PHR1,the central regulator of Pi starvation responses,to inhibit its function under Pi-replete conditions.However,this interaction is compromised in the vih1 vih2 double mutant,resulting in the constitutive induction of Pi starvation-induced genes,indicating that plant cells cannot sense cellular Pi status without lnsP8.Furthermore,we showed that lnsP8 could directly bind to the SPX domain of SPX1 and is essential for the interaction between SPX1 and PHR1.Collectively,our study suggests that lnsP8 is the intracellular Pi signaling molecule serving as the ligand of SPX1 for controlling Pi homeostasis in plants. | Jinsong Dong Guojie Ma Liqian Sui Mengwei Wei Viswanathan Satheesh Ruyue Zhang Shenghong Ge Jinkai Li Tong-En Zhang Christopher Wittwer Henning JJessen Huiming Zhang Guo-Yong An Dai-Yin Chao Dong Liu Mingguang Lei | 2019 | Molecular Plant2019,12,11: | 8 |
| 18 | Numerical Experiment of the Solid Particle Erosion of Bionic Configuration Blade of Centrifugal Fan显示文摘In this paper, a bionic method was presented to improve the erosion resistance of blade of the centrifugal fan. A numerical investigation of the solid particle erosion on the standard and bionic configuration blade of 4-72N10C centrifugal fan was presented. The numerical study employs computational fluid dynamics (CFD) software, based on a finite volume method, in which the discrete phase model was used to modele the solid particles flow, and the Eulerian conservation equation was adopt to simulate the continuous phase. Moreover, user-defined function was used to define wear equation. The various diameters of the particles were taken into account. The positions of collision of standard and bionic fan blades were discussed, and two kinds of centrifugal fan blade wear were compared. The results show that the particles from the incident source with different positions have different processes of turning and movement when enter into the impeller. The trajectories of flow in the fan channel are significantly different for the particles with different diameters. Bionic fan blade have lower erosion rate than the standard fan blade when the particle size is 20 μm. The anti-erosion mechanism of the bionic fan blade was discussed. | Junqiu ZHANG Zhiwu HAN Wei YIN Huiyuan WANG Chao GE Jialian JIANG | 2013 | Acta Metallurgica Sinica(English Letters)2013,26,1: | 8 |
| 19 | The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)显示文摘The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, also called the Guo Shou Jing Telescope) is a special reflecting Schmidt telescope. LAMOST's special design allows both a large aperture (effective aperture of 3.6 m-4.9 m) and a wide field of view (FOV) (5°). It has an innovative active reflecting Schmidt configuration which continuously changes the mirror's surface that adjusts during the observation process and combines thin deformable mirror active optics with segmented active optics. Its primary mirror (6.67m×6.05 m) and active Schmidt mirror (5.74m×4.40 m) are both segmented, and composed of 37 and 24 hexagonal sub-mirrors respectively. By using a parallel controllable fiber positioning technique, the focal surface of 1.75 m in diameter can accommodate 4000 optical fibers. Also, LAMOST has 16 spectrographs with 32 CCD cameras. LAMOST will be the telescope with the highest rate of spectral acquisition. As a national large scientific project, the LAMOST project was formally proposed in 1996, and approved by the Chinese government in 1997. The construction started in 2001, was completed in 2008 and passed the official acceptance in June 2009. The LAMOST pilot survey was started in October 2011 and the spectroscopic survey will launch in September 2012. Up to now, LAMOST has released more than 480 000 spectra of objects. LAMOST will make an important contribution to the study of the large-scale structure of the Universe, structure and evolution of the Galaxy, and cross-identification of multiwaveband properties in celestial objects. | Xiang-Qun Cui Yong-Heng Zhao Yao-Quan Chu Guo-Ping Li Qi Li Li-Ping Zhang Hong-Jun Su Zheng-Qiu Yao Ya-Nan Wang Xiao-Zheng Xing Xin-Nan Li Yong-Tian Zhu Gang Wang Bo-Zhong Gu A-Li Luo Xin-Qi Xu Zhen-Chao Zhang Gen-Rong Liu Hao-Tong Zhang De-Hua Yang Shu-Yun Cao Hai-Yuan Chen Jian-Jun Chen Kun-Xin Chen Ying Chen Jia-Ru Chu Lei Feng Xue-Fei Gong Yong-Hui Hou Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge Jin Ai-Hua Li Yan Li Ye-Ping Li Guan-QunLiu Zhi-Gang Liu Huo-Ming Shi Zheng-Hong Tang Qing-Sheng Tao Xiang-Yan Yuan Chao Zhai Jing Zhang Yan-Xia Zhang Yong Zhang Ming Zhao Fang Zhou Guo-Hua Zhou Jie Zhu Si-Cheng Zou | 2012 | Research in Astronomy and Astrophysics2012,12,9: | 8 |
| 20 | Synthesis of a Novel Core-shell Type Acrylic-polyurethane Hybrid Emulsion Containing Siloxane and Fluorine as well as Water and the Oil Resistances of Cured Film显示文摘Siliconated polyurethane (Si-PU) was synthesized using isophorone diisocyanate (IPDI), hydroxybutyl-terminated polydimethylsiloxane (PDMS), polytetramethylene ether glycol (PTMG), polypropylene glycol (PPG), 1,6-hexanediol (HDO), dimethylol propionic acid (DMPA) and triethylamine (TEA). Based on butyl acrylate (BA), 2, 2, 2-trifluoroethylmethacrylate (TFEMA) and Si-PU as a seed emulsion, a novel core-shell type acrylic-polyurethane hybrid emulsion, containing siloxane and fluorine (F-Si-PU), was prepared by seeded emulsion polymerization. The contents of siloxane and fluorine were determined according to the feed ratio. Fourier transform infrared spectroscopy (FTIR) was used to identify the chain structures of Si-PU and F-Si-PU. Investigation of transmission electron microscopy (TEM) confirmed the core-shell structure of F-Si-PU emulsion. Measurement results of water contact angle and the swelling ratio in water and n-octane for cured film showed that the water and the oil resistances for F-Si-PU had been significantly improved at a suitable content of fluorine and siloxane. | Jing CHAO Xing Yuan ZHANG Jia Bing DAI Zhen GE Lin Lin FENG | 2006 | Chinese Chemical Letters2006,17,8: | 7 |