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| 1 | Characteristics of dissolved organic matter(DOM) in leachate with different landfill ages显示文摘学习的主要目的是调查溶解有机物(DOM ) 的特征在沥滤通过化学、分光镜、元素的分析与不同垃圾堆年龄吃了。胡敏酸(哈) , fulvic (FA ) ,并且吸水(HyI ) 部分被与阳离子交换尸方法相结合的 XAD-8 树脂孤立并且净化。荧光刺激排放矩阵光谱学(EEM ) 的分析结果表明荧光山峰是为年轻垃圾堆的像蛋白质的荧光沥滤当为中等、旧的垃圾堆的荧光山峰沥滤时,吃了吃分别地是象腐殖一样和象 fulvic 一样荧光。元素的分析证明那碳,氢,和氮内容与垃圾堆年龄减少了,当氧内容增加了时。而且,在这些孤立的部分的氮内容列在后面:哈 >
HyI >
FA。元素的分析,英尺红外,和荧光 EEM 的结果也证实脂肪族的功能的组的芳香的碳和部分更充满沥滤与增加垃圾堆年龄吃了样品。 | HUO Shouliang XI Beidou YU Haichan HE Liansheng FAN Shilei LIU Hongliang | 2008 | Journal of Environmental Sciences2008,20,4: | 52 |
| 2 | Performance of a subsurface-flow constructed wetland in Southern China显示文摘The operational performance of a full scale subsurface flow constructed wetland, which treated the mixed industrial and domestic wastewater with BOD 5/COD mean ratio of 0 33 at Shatian, Shenzhen City was studied. The constructed wetland system consists of screens, sump, pumping station, and primary settling basin, facultative pond, first stage wetland and secondary stage wetland. The designed treatment capacity is 5000 m 3/d, and the actual influent flow is in the range of <2000 to >10000 m 3/d. Under normal operational conditions, the final effluent quality well met the National Integrated Wastewater Discharge Standard(GB 8978\1996), with the following parameters(mean values): COD 33 90 mg/L, BOD 5 7.65 mg/L, TSS 7.92 mg/L, TN 9.11 mg/L and TP 0 56 mg/L. Seven species of plants were selected to grow in the wetland: Reed, Sweetcane flower Silvergrass, Great Bulrush, Powdery Thalia and Canna of three colours. The growing season is a whole year round. The seasonal discrepancy could be observed and the plants growing in the wetland are vulnerable to lower temperature in winter. The recycling of the effluent in the first stage of the wetland system is an effective measure to improve the performance of the wetland system. The insufficient DO value in the wetland system not only had significant effect on pollutants removal in the wetland, but also was unfavourable to plant growth. The recycling of effluent to the inlet of wetland system and artificial pond to increase DO value of influent to the wetland is key to operate the subsurface constructed wetland steadily and effectively. | SHILei WANGBao-zhen CAOXiang-dong WangJin LEIZhi-hong WANGZhi-ren LIUZheng-ying LUBing-nan | 2004 | Journal of Environmental Sciences2004,16,3: | 18 |
| 3 | Modeling the epidemic dynamics and control of COVID-19 outbreak in China显示文摘Background:The coronavirus disease 2019(COVID-19)is rapidly spreading in China and more than 30 countries over last two months.COVID-19 has multiple characteristics distinct from other infectious diseases,including high infectivity during incubation,time delay between real dynamics and daily observed number of confirmed cases,and the intervention effects of implemented quarantine and control measures.Methods:We develop a Susceptible,Un-quanrantined infected,Quarantined infected,Confirmed infected(SUQC)model to characterize the dynamics of COVID-19 and explicitly parameterize the intervention effects of control measures,which is more suitable for analysis than other existing epidemic models.Results:The SUQC model is applied to the daily released data of the confirmed infections to analyze the outbreak of COVID-19 in Wuhan,Hubei(excluding Wuhan),China(excluding Hubei)and four first-tier cities of China.We found that,before January 30,2020,all these regions except Beijing had a reproductive number R>\,and after January 30,all regions had a reproductive number/?<1,indicating that the quarantine and control measures are effective in preventing the spread of COVID-19.The confirmation rate of Wuhan estimated by our model is 0.0643,substantially lower than that of Hubei excluding Wuhan(0.1914),and that of China excluding Hubei(0.2189),but it jumps to 0.3229 after February 12 when clinical evidence was adopted in new diagnosis guidelines.The number of unquarantined infected cases in Wuhan on February 12,2020 is estimated to be 3,509 and declines to 334 on February 21,2020.After fitting the model with data as of February 21,2020,we predict that the end time of COVID-19 in Wuhan and Hubei is around late March,around mid March for China excluding Hubei,and before early March 2020 for the four tier-one cities.A total of 80,511 individuals are estimated to be infected in China,among which 49,510 are from Wuhan,17,679 from Hubei(excluding Wuhan),and the rest 13,322 from other regions of China(excluding Hubei).Note that the estimates are from a deterministic ODE model and should be interpreted with some uncertainty.Conclusions:We suggest that rigorous quarantine and control measures should be kept before early March in Beijing,Shanghai,Guangzhou and Shenzhen,and before late March in Hubei.The model can also be useful to predict the trend of epidemic and provide quantitative guide for other countries at high risk of outbreak,such as South Korea,Japan,Italy and Iran. | Shilei Zhao Hua Chen | 2020 | Quantitative Biology2020,8,1: | 14 |
| 4 | Chemical Characteristic of Bioactive Polysaccharides Isolated from Ornithogalum caudatum Ait显示文摘A water soluble crude extract prepared from Ornithogalum caudatum Ait. (OCA) showing a high immunomodulating activitiy was isolated and characterized by virtue of gel filtration and column chromatography. The presence of the monosaccharides has been established by the chemical analysis. The quantitative analysis of the alditol acetate derivatives of them showed the ratios of the monosaccharides analyzed by means of GC respectively. The concentrations of protein(280 nm) and carbohydrate(496 nm) were detected respectively. The information of the molecular weight from the pure polysaccharide was obtained by several standard Dextrans from the Sephadex chromatography. | SHILei LIJuan LIUWen-Xiang WANGYong LIUZhi-qiang LIUShu-ying | 2003 | Chemical Research in Chinese Universities2003,19,3: | 12 |
| 5 | Leonurine protects ischemia-induced brain injury via modulating SOD, MDA and GABA levels显示文摘The present study was designed to investigate the protective effects of leonurine, a compound purified from Herba Leonuri that is active on ischemic rat behavior and cortical neurons, and explore the underlying mechanism. The general rat activity, cortical neuron morphology, superoxide dismutase (SOD), malondialdehyde (MDA),γ- aminobutyric acid (GABA) and glutamate decarboxylase 67 (GAD67) levels were measured. We found leonurine significantly improve the general activity of rats in an opefield test, which was associated with attenuated neuronal damage induced by ischemia. Moreover, serum SOD activity was significantly greater, MDA level lower in the leonurine group as compared with ischemia group. In addition, GABA content in the cerebral cortex was significantly greater in high-dose leonurine group. Correspondingly, GAD67 protein level coincided with the GABA level. Taken together, our results demonstrated that leonurine attenuated brain injury during ischemia via antioxidative and anti-excitotoxicity effects by targeting GABA and leonurine might become a useful adjuvant neuroprotective agent. | Shilei ZHENG Jingru ZHU Jiao LI Shuang ZHANG Yunfei MA | 2019 | Frontiers of Agricultural Science and Engineering2019,6,2: | 11 |
| 6 | Characteristics of secondary inorganic aerosol and sulfate species in size-fractionated aerosol particles in Shanghai显示文摘Sulfate, nitrate and ammonium(SNA) are the dominant species in secondary inorganic aerosol, and are considered an important factor in regional haze formation. Size-fractionated aerosol particles for a whole year were collected to study the size distribution of SNA as well as their chemical species in Shanghai. SNA mainly accumulated in fine particles and the highest average ratio of SNA to particulate matter(PM) was observed to be 47% in the fine size fraction(0.49–0.95 μm). Higher sulfur oxidation ratio and nitrogen oxidation ratio values were observed in PM of fine size less than 0.95 μm. Ion balance calculations indicated that more secondary sulfate and nitrate would be generated in PM of fine size(0.49–0.95 μm). Sulfur K-edge X-ray absorption near-edge structure(XANES) spectra of typical samples were analyzed. Results revealed that sulfur mainly existed as sulfate with a proportion(atomic basis) more than 73% in all size of PM and even higher at 90% in fine particles. Sulfate mainly existed as(NH4)2SO4 and gypsum in PM of Shanghai. Compared to non-haze days, a dramatic increase of(NH4)2SO4 content was found in fine particles on haze days only, which suggested the promoting impact of(NH4)2SO4 on haze formation. According to the result of air mass backward trajectory analysis, more(NH4)2SO4 would be generated during the periods of air mass stagnation. Based on XANES, analysis of sulfate species in size-fractionated aerosol particles can be an effective way to evaluate the impact of sulfate aerosols on regional haze formation. | Shilei Long Jianrong Zeng Yan Li Liangman Bao Lingling Cao Ke Liu Liang Xu Jun Lin Wei Liu Guanghua Wang Jian Yao Chenyan Ma Yidong Zhao | 2014 | Journal of Environmental Sciences2014,26,5: | 10 |
| 7 | Urban Green Space Planning Based on Computational Fluid Dynamics Model and Landscape Ecology Principle:A Case Study of Liaoyang City,Northeast China显示文摘As a result of environmental degradation,urban green space has become a key issue for urban sustainable development.This paper takes Liaoyang City in Northeast China as an example to develop green space planning using the computational fluid dynamics (CFD) model,landscape ecological principles and Geographical Information System (GIS).Based on the influencing factors of topography,building density and orientation,Shou Mountain,Longding Mountain and the Taizi River were selected as the urban ventilation paths to promote wind and oxygen circulation.Oxygen concentration around the green spaces gradually decreased with wind speed increase and wind direction change.There were obvious negative correlation relationships between the oxygen dispersion concentration and urban layout factors such as the building plot ratio and building density.Comparison with the field measurements found that there was significant correlation relationship between simulated oxygen concentration and field measurements (R 2=0.6415,p<0.001),moreover,simulation precision was higher than 92%,which indicated CFD model was effective for urban oxygen concentration simulation.Only less than 10% areas in Liaoyang City proper needed more green space urgently to improve oxygen concentration,mainly concentrated in Baitai and west Wensheng districts.Based on land-scape ecology principle,green space planning at different spatial scales were proposed to create a green space network system for Liaoyang City,including features such as green wedges,green belts and parks.Totally,about 2012 ha of green space need to be constructed as oxygen sources and ventilation paths.Compared with the current green space pattern,proposed green space planning could improve oxygen concentration obviously.The CFD model and research results in this paper could provide an effective way and theory support for sustainable development of urban green space. | ZHOU Yuan SHI Tiemao HU Yuanman GAO Chang LIU Miao FU Shilei WANG Shizhe | 2011 | Chinese Geographical Science2011,21,4: | 9 |
| 8 | Sulfur speciation and bioaccumulation in camphor tree leaves as atmospheric sulfur indicator analyzed by synchrotron radiation XRF and XANES显示文摘Analyzing and understanding the effects of ambient pollution on plants is getting more and more attention as a topic of environmental biology.A method based on synchrotron radiation X-ray fluorescence and X-ray absorption near edge structure spectroscopy was established to analyze the sulfur concentration and speciation in mature camphor tree leaves (CTLs),which were sampled from 5 local fields in Shanghai,China.Annual SO2 concentration,SO42-concentration in atmospheric particulate,SO42-and sulfur concentration in soil were also analyzed to explore the relationship between ambient sulfur sources and the sulfur nutrient cycling in CTLs.Total sulfur concentration in mature camphor tree leaves was 766-1704 mg/kg.The mainly detected sulfur states and their corresponding compounds were +6 (sulfate,include inorganic sulfate and organic sulfate),+5.2 (sulfonate),+2.2 (suloxides),+0.6 (thiols and thiothers),+0.2 (organic sulfides).Total sulfur concentration was strongly correlated with sulfate proportion with a linear correlation coefficient up to 0.977,which suggested that sulfur accumulated in CTLs as sulfate form.Reduced sulfur compounds (organic sulfides,thiols,thioethers,sulfoxide and sulfonate) assimilation was sufficed to meet the nutrient requirement for growth at a balanced level around 526 mg/kg.The sulfate accumulation mainly caused by atmospheric sulfur pollution such as SO2 and airborne sulfate particulate instead of soil contamination.From urban to suburb place,sulfate in mature CTLs decreased as the atmospheric sulfur pollution reduced,but a dramatic increase presented near the seashore,where the marine sulfate emission and maritime activity pollution were significant.The sulfur concentration and speciation in mature CTLs effectively represented the long-term biological accumulation of atmospheric sulfur pollution in local environment. | Jianrong Zeng Guilin Zhang Liangman Bao Shilei Long Mingguang Tan Yan Li Chenyan Ma Yidong Zhao | 2013 | Journal of Environmental Sciences2013,25,3: | 9 |
| 9 | Geological cycling of potassium and the K isotopic response:insights from loess and shales显示文摘Shales are a major sink for K into seawater delivered from continental weathering,and are potential recorders of K cycling.High precision K isotope analyses reveal a[0.6%variation in δ^41K values(41K/39K relative to NIST SRM 3141a)from a set of well characterized postArchean Australian shale(PAAS)samples.By contrast,loess samples have relatively homogenous δ^41K values(-0.5±0.1%),which may represent the average K composition of upper continental crust.Most of the shales analyzed in this study have experienced K enrichment relative to average continental crust,and the majority of them define a trend of decreasing δ^41K value(from-0.5to-0.7%)with increasing K content and K/Na ratio,indicating cation exchange in clays minerals is accompanied by K isotope fractionation.Several shale samples do not follow the trend and have elevated δ^41K values up to-0.1%,and these samples are characterized by variable Fe isotope compositions,which reflect post-depositional processes.The K isotope variability observed in shales,in combination with recent findings about K isotope fractionation during continental weathering,indicates that K isotopes fractionate during cycling of K between different reservoirs,and K isotopes in sediments may be used to trace geological cycling of K. | Weiqiang Li Shilei Li Brian L.Beard | 2019 | Acta Geochimica2019,38,4: | 8 |
| 10 | Persistent organic pollutants PCNs and PBDEs in sediments from coastal waters of Qingdao,Shandong Peninsula显示文摘Thirty-one congeners of polychlorinated naphthalenes (PCNs) and 21 congeners of polybrominated diphenylethers(PBDEs)in surface sediments at 5 stations and one mussel sample from Qingdao coastal waters were analyzed. The maximum contents occur at the station near the Haibo River mouth. The total PCNs contents are in the range of 212-1209 pg/g dw, dominated by tri-Cl CN. The total PBDEs contents are in the range of 117-5510 pg/g dw,dominated by tri- to hexa-BrBDEs. The local sources of PCNs are likely from combustion processes such as incinerations and coal burnings. The sources of PBDEs are molecular diffusion from the materials containing them. Except for the area near the river mouth where is affected by the sewage sludges, an important source of PCNs and PBDEs in this area is believed to be the atmospheric deposition. Mussels enrich PCNs and PBDEs relative to the sediments. The total TEQs of PCNs in mussels are lower than the total TEQs of PCBs. | YANGYongliang PANJing LIYue YINXiaocai SHILei | 2004 | Chinese Science Bulletin2004,49,1: | 6 |
| 11 | Sediment pollution characteristics and in situ control in a deep drinking water reservoir显示文摘Sediment pollution characteristics, in situ sediment release potential, and in situ inhibition of sediment release were investigated in a drinking water reservoir. Results showed that organic carbon(OC), total nitrogen(TN), and total phosphorus(TP) in sediments increased from the reservoir mouth to the main reservoir. Fraction analysis indicated that nitrogen in ion exchangeable form and Na OH-extractable P(Fe/Al-P) accounted for 43% and 26% of TN and TP in sediments of the main reservoir. The Risk Assessment Code for metal elements showed that Fe and Mn posed high to very high risk. The results of the in situ reactor experiment in the main reservoir showed the same trends as those observed in the natural state of the reservoir in 2011 and 2012; the maximum concentrations of total OC, TN, TP, Fe,and Mn reached 4.42 mg/L, 3.33 mg/L, 0.22 mg/L, 2.56 mg/L, and 0.61 mg/L, respectively. An in situ sediment release inhibition technology, the water-lifting aerator, was utilized in the reservoir. The results of operating the water-lifting aerator indicated that sediment release was successfully inhibited and that OC, TN, TP, Fe, and Mn in surface sediment could be reduced by 13.25%, 15.23%, 14.10%, 5.32%, and 3.94%, respectively. | Zizhen Zhou Tinglin Huang Yang Li Weixing Ma Shilei Zhou Shenghai Long | 2017 | Journal of Environmental Sciences2017,29,2: | 6 |
| 12 | Cromakalin pretreatment affects mitochondrial structure and function in a rat model of ischemia/reperfusion injury显示文摘BACKGROUND:Mitochondrial structural changes and energy dysmetabolism frequently occur subsequent to cerebral ischemia.Adenosine triphosphate(ATP)-sensitive potassium channel openers exhibit protective effects on cerebral ischemia/reperfusion injury.OBJECTIVE:To validate the effects of cromakalin on mitochondrial structure and function in ischemic penumbra brain tissue in a rat model of middle cerebral artery occlusion(MCAO).DESIGN,TIME AND SETTING:The present single-factor analysis of variance,randomized,controlled,animal experiment was performed at the Institute of Brain Science,Affiliated Hospital of Qingdao University Medical College between October 2007 and March 2008.MATERIALS:Forty male,Wistar rats were randomly divided into four groups,with 10 rats per group:sham-operated,MCAO,MCAO+ATP-sensitive potassium channel opener(cromakalin),and MCAO+cromakalin+ATP-sensitive potassium channel blocking agent(glibenclamide).METHODS:Focal cerebral ischemia/reperfusion injury was induced by MCAO in all groups except the sham-operated group.The MCAO cromakalin group was administered 10 mg/kg cromakalin(i.p.) prior to MCAO induction.The MCAO+cromakalin+glibenclamide group received an injection of 10 mg/kg cromakalin(i.v.),and subsequently an injection of 10 mg/kg cromakalin(i.p.) prior to MCAO induction.MAIN OUTCOME MEASURES:At 24 hours after cerebral ischemia/reperfusion injury,cellular apoptosis was detected by terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate(dUTP) nick-end labeling technique.Cytochrome C expression was measured by immunohistochemistry.In addition,mitochondrial swelling,membrane fluidity,membrane phospholipid and malonaldehyde(MDA) contents,as well as Na+-K+-ATPase,Ca2 +-ATPase,and superoxide dismutase(SOD) activities were determined.RESULTS:Compared with the sham-operated group,the three ischemia groups exhibited significantly elevated mitochondrial MDA content,reduced membrane phospholipid and ATP contents,down-regulated membrane fluidity,and reduced Na+-K+-ATPase,Ca2+-ATPase,and SOD activities(P < 0.05-0.01).In the MCAO+cromakalin group,the number of apoptotic cells decreased,and cytochrome C expression,as well as MDA content,were reduced.However,ATP content and Na+-K+-ATPase,Ca2+-ATPase,and SOD activities significantly increased compared with the MCAO group(P < 0.05-0.01).Glibenclamide noticeably antagonized cromakalin protection of mitochondria.CONCLUSION:Pretreatment with the ATP-sensitive potassium channel opener cromakalin increased mitochondrial Na+-K+-ATPase,Ca2+-ATPase,and SOD activities,decreased neuronal apoptosis,and inhibited cytochrome C expression following MCAO. | Shilei Wang Peng Wang Qingxian Chang Yu Li Yan Jiang Shiduan Wang | 2008 | Neural Regeneration Research2008,3,9: | 6 |
| 13 | Functional Diversity of CYCLOIDEA-like TCP Genes in the Control of Zygomorphic Flower Development in Lotus japonicus显示文摘CYCLOIDEA (CYC)-like TCP genes play key roles in dorsoventral differentiation of zygomorphic flowers in Papilionoideae legumes. In this study, we analyzed the kew mutants whose flowers lost lateral identity, and investigated the diverse functions of three LjCYC genes during zygomorphic flower development in the model legume Lotus japonicus. We showed that kew1 and kew3 are allelic mutants of LjCYC3, a CYC-like TCP gene. Through transgenic experiments, it was shown that LjCYC1 possesses dorsal activity similar to LjCYC2, and that LjCYC3 alone is sufficient to confer lateral activity, and an epistatic effect between dorsal and lateral activities was identified. Sequence analysis revealed a striking alteration at the 3 end of the LjCYC3 open reading frame (ORF) in comparison with those of LjCYC1 and LjCYC2 ORFs. Furthermore, it was found that LjCYC proteins could interact with each other and possess different activities by means of a transcriptional activity assay. Our data demonstrate that the sequence variation and the subsequent alteration of protein property play important roles in the functional diversity of different LjCYC genes in controlling zygomorphic flower development in Lotus japonicus. | Shilei Xu Yonghai Luo Zhigang Cai Xiangling Cao Xiaohe Hu Jun Yang Da Luo | 2013 | Journal of Integrative Plant Biology2013,55,3: | 6 |
| 14 | Deformation-induced martensitic transformation kinetics and correlative micromechanical behavior of medium-Mn transformation-induced plasticity steel显示文摘An in situ high-energy X-ray diffraction(HE-XRD) technique was mainly used to investigate the micromechanical behavior of medium-Mn Fe-0.12 C-10.16 Mn-1.87 Al(in wt%) transformation-induced plasticit(TRIP) steel subjected to intercritical annealing at 625℃, 650℃, 675℃ and 700℃ for 1 h. As the intercritical annealing temperature increased, the volume fraction of retained austenite(RA) and ultimate tensilstress(UTS) increased, while the Lüders strain and yield stress(YS) decreased. The incremental workhardening exponent of experimental steel increased with increasing intercritical annealing temperatureThe overall trend of the transformation kinetics of the RA with respect to the true strain followed thsigmoidal shape predicted by the Olson and Cohen(OC) model. Load partitioning occurred among the ferrite, austenite and martensite immediately after entering the yielding stage. Because the stability of thRA decreased with increasing intercritical annealing temperature, the load undertaken by the martensitincreased. The moderate transformation kinetics of the RA and effective load partitioning among constituent phases were found to contribute to a favorable combination of strength and ductility for thimedium-Mn TRIP steel. | Minghe Zhang Haiyang Chen Youkang Wang Shengjie Wang Runguang Li Shilei Li Yan-Dong Wang | 2019 | Journal of Materials Science & Technology2019,35,8: | 5 |
| 15 | The CARMA3-BCL10-MALT1 (CBM) complex contributes to DNA damage-induced NF-κB activation and cell survival显示文摘 | Shilei Zhang Deng Pan Xin-Ming Jia Xin Lin Xueqiang Zhao | 2017 | Protein & Cell2017,8,11: | 5 |
| 16 | A Modular DC/DC Photovoltic Generation System for HVDC Grid Connection显示文摘A modular DC/DC conversion system with distributed MPPT and centralized step-up converter for photovoltaic energy integrated into HVDC grids is proposed in this paper.The conversion system consists of two power stages,with MPPT converter as the first stage and a step-up converter as the second stage.Both stages are modular structures.For the distributed MPPT stage,interleaved boost topology is utilized to effectively reduce the input and output ripples without adding extra components.For the centralized step-up stage,narrow-switching-frequency-variation LLC topology is employed,with the modules being configured as input-parallel-output-series structure.Full-range soft-switching property is achieved in the LLC stage to minimize switching losses.Theoretical analysis is carried out for the system voltage gain and design principles.Simulation and experimental results of a 3kW prototype system are presented to verify the theoretical analysis of the proposed system. | Guoen Cao Kai Sun Siyue Jiang Shilei Lu Yibo Wang | 2018 | Chinese Journal of Electrical Engineering2018,4,2: | 5 |
| 17 | Effects of the mitochondrial calcium uniporter on cerebral edema in a rat model of cerebral ischemia reperfusion injury显示文摘The present study investigated the effects of the mitochondrial calcium uniporter inhibitor ruthenium red and the agonist spermine on cerebral edema in rats with cerebral ischemia reperfusion injury. Left middle cerebral artery occlusion (MCAO) was induced in rats using the suture method. Following 24 hours of ischemic reperfusion, neurological function scores of rats with MCAO, and rats pretreated with ruthenium red and spermine were significantly lower, however, water content of brain tissue, aquaporin 4 expression and immunoglobulin G (IgG) exudation were significantly higher than those of sham-operated rats. Compared with MCAO rats and spermine-treated rats, neurological function scores were considerably higher, and brain tissue water content, aquaporin 4 expression and IgG exudation decreased in ruthenium red-treated rats. These findings suggest that preventive application of the mitochondrial calcium uniporter inhibitor ruthenium red can significantly decrease aquaporin 4 and IgG expression, influence the permeability of the blood brain barrier, and thereby decrease the extent of cerebral edema. | Linlin Li Shilei Wang Haihong Luan | 2011 | Neural Regeneration Research2011,6,22: | 4 |
| 18 | Fingerprinting hydrothermal fluids in porphyry Cu deposits using K and Mg isotopes显示文摘In this study, we performed an integrated investigation of K and Mg isotopes in hydrothermally altered rocks from the giant Dexing porphyry Cu deposit in China. Both the altered porphyry intrusion and the surrounding wall rocks exhibit large variations in K and Mg isotope compositions, with δ41K values ranging between-1.02‰ and 0.38‰, and δ26Mg values ranging between-0.49‰ and 0.32‰. The δ41K and δ26Mg values of the majority of altered samples are higher than the isotopic baseline values for upper continental crust. We attribute the general increase in δ41 K and δ26Mg in altered rocks to hydrothermal alteration,which caused preferential incorporation of heavy K and Mg isotopes in alteration products, particularly phyllosilicates. However,a few altered samples show anomalously low δ41K and δ26Mg values. The δ41K and δ26Mg values do not correlate with K and Mg concentrations, or mineralogy of altered samples. The variable K-Mg isotope data likely reflect fluids of different physicalchemical properties, or different isotopic compositions. Based on the combined K-Mg isotope data, at least three groups of hydrothermal fluids are distinguished from the Dexing porphyry deposit. Therefore, K-Mg isotopes are potentially a novel tracer for fingerprinting fluids in complex hydrothermal systems. | Weiqiang LI Shugao ZHAO Xiaomin WANG Shilei LI Guoguang WANG Tao YANG Zhangdong JIN | 2020 | Science China Earth Sciences2020,63,1: | 4 |
| 19 | The energy performance and passive survivability of high thermal insulation buildings in future climate scenarios显示文摘Given that the passive performance simulation of buildings based on typical meteorological year data and specific design schemes makes it challenging to respond to climate change and refine design requirements on time,this article established a passive performance prediction model for future buildings considering multi-dimensional variables including climate change,building design,and operational characteristics.For high thermal insulation buildings under future climates,the mild climate zone is more sensitive than the others,cooling energy demand is more sensitive than heating demand,apartments are more sensitive than office buildings,and passive survivability is more sensitive than energy performance;for buildings of the same type located in the same climate zone,thermal design solutions determine the increase rate of cooling demand.The potential benefits of climate warming on heating demand reduction are almost zero,but the cooling demand increases significantly,with apartments and office buildings increasing up to 22.1% and 5.0%,respectively.Buildings generally overheat in the future,and the increase rate of the mild zone far exceeds other zones with duration and severity being 3004.8% and 877.7%for apartments,and 884.3% and 288.9%for office buildings,respectively. | Ran Wang Shilei Lu Xue Zhai Wei Feng | 2022 | Building Simulation2022,15,7: | 4 |
| 20 | Perfection of Perovskite Grain Boundary Passivation by Rhodium Incorporation for Efficient and Stable Solar Cells显示文摘Organic cation and halide anion defects are omnipresent in the perovskite films,which will destroy perovskite electronic structure and downgrade the properties of devices.Defect passivation in halide perovskites is crucial to the application of solar cells.Herein,tiny amounts of trivalent rhodium ion incorporation can help the nucleation of perovskite grain and passivate the defects in the grain boundaries,which can improve efficiency and stability of perovskite solar cells.Through first-principle calculations,rhodium ion incorporation into the perovskite structure can induce ordered arrangement and tune bandgap.In experiment,rhodium ion incorporation with perovskite can contribute to preparing larger crystalline and uniform film,reducing trap-state density and enlarging charge carrier lifetime.After optimizing the content of 1% rhodium,the devices achieved an efficiency up to 20.71% without obvious hysteresis,from 19.09% of that pristine perovskite.In addition,the unencapsulated solar cells maintain 92% of its initial efficiency after 500 h in dry air.This work highlights the advantages of trivalent rhodium ion incorporation in the characteristics of perovskite solar cells,which will promote the future industrial application. | Wei Liu Nanjing Liu Shilei Ji Hongfeng Hua Yuhui Ma Ruiyuan Hu Jian Zhang Liang Chu Xing’ao Li Wei Huang | 2020 | Nano-Micro Letters2020,12,9: | 4 |