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World Journal of Emergency Medicine 2024年第4期15卷 311-312页

作者： Zhaokun Fan Zhirong zhang Department of Intensive Care Unit the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou 310006China

Extracorporeal membrane oxygenation(ECMO)is a technology that can temporarily take over the functions of the heart and *** kidney injury is a common issue in patients receiving ECMO treatment,with reported incidence rates ranging from 70%to 85%.[1]To maintain the balance of fluids and electrolytes in patients,continuous renal replacement therapy(CRRT)is frequently employed.

关键词： Acute treatment perfusion

Radiosonde observations of high-latitude planetary waves in the lower atmosphere

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Science china Earth Sciences 2010年第6期53卷 919-932页

作者： WANG Rui1,2,3, zhang ShaoDong1,2,3 & YI Fan1,2,3 1 school of Electronic Information, Wuhan university, Wuhan 430079, china 2 Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, china 3 State Observatory for Atmospheric Remote Sensing, Wuhan 430079, china school of Electronic Information Wuhan University Wuhan China Key Laboratory of Geospace Environment and Geodesy Ministry of Education Wuhan China State Observatory for Atmospheric Remote Sensing Wuhan China

The characteristics of high-latitude planetary waves (PWs) in the troposphere and lower stratosphere (TLS) are studied by using the data from radiosonde observations during 1998 to 2006 at three Alaskan stations in USA (Nome, 64.50°N, 165.43°W; McGrath, 62.97°N, 155.62°W; Fairbanks, 64.82°N, 147.87°W). It is found that strong PWs exist in two regions. One is around tropopause, and the other is in the polar night jet (PNJ) in winter. The PW activities are rather intermittent, and their lifetimes are no longer than two months. Among three perturbation components in zonal and meridional winds and temperature, the temperature disturbance amplitude is the smallest, and the amplitude for the meridional wind component the largest. Around the tropopause, quasi 5-, 10-, and 16-day PW activities can be observed simultaneously. Among these PW components, the quasi 5-day and 10-day PW are the weakest and strongest, respectively. Moreover, PWs around the tropopause are complex and no obvious season variability can be observed. However, in the PNJ, the higher region, only obvious quasi 10-day and 16-day PWs remain, with smaller amplitudes than those around the tropopause. And significant PWs in the PNJ occur only in winter. By calculating the refractive index for PWs, it is found that there is a persistent reflection layer around 11 km, which is thick in summer and becomes thin or even disappears in winter, revealing that PWs in the stratosphere can only occur in winter. PWs in the 2003/2004 winter at the three stations are analyzed in detail. It is found that for the focused observation duration, the quasi 10-day and quasi 16-day waves exist mainly in the troposphere and stratosphere, respectively. The quasi 10-day wave is a standing wave in the vertical direction, with vertical wavelength about 12 km in the temperature component and larger than 26 km in the meridional component. Moreover, the tropospheric quasi 10-day wave propagates westward with the zonal numbers between 2 an

关键词： planetary waves troposphere and lower stratosphere radiosonde

Development of Germination Nonwoven Made from Straw/Cotton Fibers

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Development of Germination Nonwoven Made from Straw/Cotton F...

Functional genomics of maize submergence tolerance and cloning of the related gene Sicyp51

2010年信息技术和管理科学国际研讨会

作者： Jing zhang1 Zhaofang Du2 1 school of Textiles Tianjin Polytechnic university Tianjin 300160 china 2 College of Light-Textile Engineering and Art Anhui Agricultural university Hefei 230031 china

Agricultural nonwoven fabrics have been widely used for germination matrix,due to their advantages in terms of thermal insulation,air permeability,durability,strength and *** fabrics made from straw/cotton fibers were applied for wheat *** seeds"Wanmai 33"were used to explore the relationship between wheat germination rate and straw/cotton nonwowen structures. Based on the laboratory germination rate of wheat sprouting,the optimal fabric structure was straw mass ratio of 70%,area density 1500g/m2,fabric thickness 9 *** gave a wheat seeds sprouting ratio of 99%.

关键词： Germination nonwoven Wheat Sprouting Fabric structure.

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Science china(Life Sciences) 2005年第4期48卷 337-345页

作者： TANG Wanhu1, zhang Zuxin1,2, ZOU Xiling1 & ZHENG Yonglian1 1. National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural university, Wuhan 430070, china 2. College of Life Science, Yangtze university, Jingzhou 434025, china National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China College of Life Science Yangtze University Jingzhou 434025 China

In this study, SSH (Suppression Subtractive Hybridization) and cDNA microarray were used to identify genes associated with waterlogging response of maize roots. Mo17 and Hz32 are two maize inbred lines with differential tolerance to hypoxia. Seedlings of the inbred lines with two leaves were submerged in hypoxia buffer. SSH libraries were constructed with cDNA samples from roots. Both forward and reverse subtractions were performed for each inbred line, and 105 positive clones induced by hypoxia were selected by differential screening. The treated and control message RNA were hybridized with the cDNA microarray of Mo17, sequen-tially, 57 of 3-fold differentially expressed clones were obtained. A total of 162 positive clones were all sequenced. Bioinformatics analysis showed these positive clones represent 85 TUGs, including genes involved in several biochemistry pathways, such as glycolysis, protection, signal transduction, cell construction and energy metabolism and 41 EST with unknown function. Comparison between Mo17 and Hz32 indicates that genes related to hypoxia tolerance have different expression patterns in submerged roots. Several positive clones’ expression patterns were revealed by Northern or RT-PCR, and a new gene (Sicyp51), which may contribute to hy-poxia tolerance, was identified.

关键词： maize, waterlogging tolerance, functional genomics, Submergence-inducible CYP51.

Mapping upland crop–rice cropping systems for targeted sustainable intensification in South china

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The Crop Journal 2024年第2期12卷 614-629页

作者： Bingwen Qiu Linhai Yu Peng Yang Wenbin Wu Jianfeng Chen Xiaolin zhu Mingjie Duan Key Laboratory of Spatial Data Mining&Information Sharing of Ministry of Education Academy of Digital China(Fujian)Fuzhou UniversityFuzhou 350116FujianChina Key Laboratory of Agricultural Remote Sensing Ministry of Agriculture and Rural AffairsBeijing 100081China Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityKowloon 999077Hong KongChina

Upland crop-rice cropping systems(UCR)facilitate sustainable agricultural *** UCR cultivation mapping is needed to ensure food security,sustainable water management,and rural ***,datasets describing cropping systems are limited in spatial coverage and crop *** UCR is more challenging than crop identification and most existing approaches rely heavily on accurate phenology calendars and representative training samples,which limits its applications over large *** describe a novel algorithm(RRSS)for automatic mapping of upland crop-rice cropping systems using Sentinel-1 Synthetic Aperture Radar(SAR)and Sentinel-2 Multispectral Instrument(MSI)*** indicator,the VV backscatter range,was proposed to discriminate UCR and another two indicators were designed by coupling greenness and pigment indices to further discriminate tobacco or oilseed *** RRSS algorithm was applied to South china characterized by complex smallholder rice cropping systems and diverse topographic *** study developed 10-m UCR maps of a major rice bowl in South china,the Xiang-Gan-Min(XGM)*** performance of the RRSS algorithm was validated based on 5197 ground-truth reference sites,with an overall accuracy of 91.92%.There were7348 km^(2) areas of UCR,roughly one-half of them located in *** UCR was represented mainly by oilseed-UCR and tobacco-UCR,which contributed respectively 69%and 15%of UCR *** patterns accounted for only one-tenth of rice production,which can be tripled by intensification from single rice *** to complex and fragmented subtropical regions suggested the spatiotemporal robustness of the RRSS algorithm,which could be further applied to generate 10-m UCR datasets for application at national or global scales.

关键词： Cropping-pattern mapping Paddy rice Sentinel-1/2 china Sustainable intensification

PPB structure elimination,DRX nucleation mechanisms and grain growth behavior of the3rd-generation PM superalloy for manufacturing aviation components

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Chinese Journal of Aeronautics 2024年第1期37卷 325-344页

作者： Baoyun zhang Yongquan NING Zhaotian WANG Qiaomu LIU school of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072China AECC Sichuan Gas Turbine Establishment Chengdu 610500China

Previous Particle Boundary(PPB),as the detrimental structure in Powder Metallurgy(PM)components,should be eliminated by subsequent hot process to improve the mechanical *** objective is to investigate the Dynamic Recrystallization(DRX)nucleation mechanisms and grain growth behavior of the 3rd-generation PM superalloy with PPB *** observation reveals that PPB decorated with(Ti,Ta,Nb)C carbides belongs to the discontinuous chain-like *** elimination of PPB networks can be achieved effectively via hot deformation due to the occurrence of *** different DRX nucleation mechanisms were proposed and discussed in detail according to the special microstructure characteristics of the PM ***,local lattice rotations can be detected in the vicinity of(Ti,Ta,Nb)C carbides during hot deformation and thus PPB structure serves as the preferential nucleation sites for DRX grains via Particle-Stimulated Nucleation(PSN).Then,Discontinuous-DRX(DDRX)characterized by grain boundary bulging dominates the microstructure refinement and Continuous-DRX(CDRX)operated by subgrain rotation can be regarded as an important assistant *** last,the initial Σ3 boundaries would lose their twin characteristics owing to the crystal rotation and then transform into the general High Angle Grain Boundaries(HAGBs).The distorted twins provide additional DRX nucleation sites,viz.,twin-assisted *** attention was focused on the grain growth behavior of the PM superalloy in subsequent annealing *** recrystallization temperature was determined to be about 1110.C and 1140.C can be considered as the critical temperature for grain *** findings would provide theoretical support for microstructure refinement of the 3rd-generation PM superalloy,which is of pivotal significance for improving the mechanical properties of aviation components.

关键词： PM superalloy Previous Particle Boundary(PPB) DRX nucleation Grain growth Microstructure refinement

Aboveground carbon sequestration of Cunninghamia lanceolata forests:Magnitude and drivers

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Forest Ecosystems 2024年第1期11卷 32-41页

作者： Chen Wang Shuguang Liu Yu zhu Andrew R.Smith Ying Ning Deming Deng National Engineering Laboratory for Applied Technology of Forestry&Ecology in South china Central South University of Forestry and TechnologyChangsha 410004China Technology Innovation Center for Ecological Conservation and Restoration in Dongting Lake Basin Ministry of Natural ResourcesChangsha 410007China College of Life Science and Technology Central South University of Forestry and TechnologyChangsha 410004China school of Ecology and Environment Hainan UniversityHaikou 570228China school of Natural Sciences Bangor UniversityGwyneddLL572UWUK College of Forestry Central South University of Forestry and TechnologyChangsha 410004China Hunan Prospecting Designing&Research General Institute for Agriculture Forestry&IndustryChangsha 410007China

Understanding the spatial variation,temporal changes,and their underlying driving forces of carbon sequestration in various forests is of great importance for understanding the carbon cycle and carbon management *** carbon density and sequestration in various Cunninghamia lanceolata forests,extensively cultivated for timber production in subtropical china,vary with biodiversity,forest structure,environment,and cultural factors remain poorly explored,presenting a critical knowledge gap for realizing carbon sequestration supply potential through *** on a large-scale database of 449 permanent forest inventory plots,we quantified the spatial-temporal heterogeneity of aboveground carbon densities and carbon accumulation rates in Cunninghamia lanceolate forests in Hunan Province,china,and attributed the contributions of stand structure,environmental,and management factors to the heterogeneity using quantile age-sequence analysis,partial least squares path modeling(PLS-PM),and hot-spot *** results showed lower values of carbon density and sequestration on average,in comparison with other forests in the same climate zone(i.e.,subtropics),with pronounced spatial and temporal ***,quantile regression analysis using carbon accumulation rates along an age sequence showed large differences in carbon sequestration rates among underperformed and outperformed forests(0.50 and 1.80 Mg·ha^(-1)·yr^(-1)).PLS-PM demonstrated that maximum DBH and stand density were the main crucial drivers of aboveground carbon density from young to mature ***,species diversity and geotopographic factors were the significant factors causing the large discrepancy in aboveground carbon density change between low-and high-carbon-bearing *** analysis revealed the importance of culture attributes in shaping the geospatial patterns of carbon *** work highlighted that retaining largesized DBH trees and increasing shade-t

关键词： Carbon density Carbon accumulation rate Forest age Spatial variation Cultural influence

The variation and regional differences of precipitation in the Longitudinal Range-Gorge the Region

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Science Bulletin 2007年第S2期 59-73页

作者： HE DaMing~(1+) LI ShaoJuan~1 zhang YiPing~2 1 Asia Intamational Rivers Center,Yunnan university,Kunming 650091,china 2 Xishuangbanna Tropical Botanic Garden,Chinese Academy of Sciences,Kunming 650223,china

This paper examines the regional differences of precipitation in the Longitudinal Range-Gorge Region (LRGR)based on the daily rainfall records during 1960 to 2001 observed at 36 meteorological stations. The regional differences of precipitation in different spatial and temporal scale are analyzed,under the effecting of the special"corridor-barrier"function in *** results indicate that very close link- ages exist between the regional differences and the"corridor-barrier"function:in most areas of the northern LRGR(>26°N),the general features of intra-annual precipitation pattern(IPP)exhibit"multi-peak pattern"with"peach blossom flood period"(PBFP).When latitude is close to 26°N,the PBFP disappears gradually and IPP patterns change from"multi-peak pattern"to"single-peak pattern". From 24°N to 25°N,the"single-peak pattern"appears again;in the southern LRGR,the pattern shows quasi"double-peak pattern"with the characteristic of so-called"autumn rain period",and the larger the longitude is,the more significant the pattern will *** dry season,the annual variations of pre- clpitation vary similarly because the controlling of atmospheric circulation is relatively single in the LRGR and the influence of the"barrier"function is not significant on precipitation annual variation,but in wet season,the spatial distribution of precipitation annual variations becomes more complicated.

关键词： precipitation variation and regional differences "corridor-barrier"function the Longitudinal Range-Gorge Region(LRGR) Southwest china

Plasma spray coating on interconnector toward promoted solid oxide fuel cells and solid oxide electrolysis cells

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Frontiers in Energy 2024年第3期18卷 390-398页

作者： Junwen CAO Yun ZHENG Wenqiang zhang Bo YU Institute of Nuclear and New Energy Technology(INET) Collaborative Innovation Center of Advanced Nuclear Energy TechnologyTsinghua UniversityBeijing 100084China Department of Chemical Engineering University of WaterlooWaterlooOntario N2L 3G1Canada Institute of New Energy Materials and Engineering School of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China

Interconnector is a critical component to construct solid oxide cells (SOCs) stack. Oxidation of metallic interconnectors and Cr poisoning caused by oxidation are important factors that lead to long-term performance degradation of SOCs. Coating on the interconnector surface is an important approach to inhibit the oxidation and Cr migration of the interconnector. Herein, (La0.75Sr0.25)0.95MnO3–δ (LSM) and Mn1.5Co1.5O4 (MCO) are used to fabricate the coatings of interconnector. Two advanced thermal spray technology, atmospheric plasma spraying (APS) and low-pressure plasma spray (LPPS), are adopted for the coating preparation. The electrochemical performance, rising and cooling cycle stability, and Cr diffusion inhibition performance of the coatings are tested and evaluated. The result indicates that MCO can generate more uniform and denser coatings than LSM. In addition, MCO coatings prepared by LPPS shows the best electrochemical performance, rising and cooling cycle stability, and Cr diffusion inhibition. The initial area specific resistance (ASR) is 0.0027 Ω·cm2 at 800 °C. After 4 cooling cycle tests, the ASR increases to 0.0032 Ω·cm2 but lower than other samples. Meanwhile, the relative intense of Cr at the interface of SUS430 with MCO coatings fabricated by LPPS is lower than that of MCO fabricated by APS after 4 rising and cooling cycle operations, showing more favorable Cr diffusion inhibition performance.

关键词： interconnector coating plasma spray electrochemical performance Cr diffusion inhibition solid oxide cells(SOCs)

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天然气水合物声学检测技术

同济大学学报（自然科学版） 2004年第7期32卷 977-980页

作者：顾轶东林维正张剑业渝光同济大学声学研究所上海200092 青岛海洋地质研究所山东青岛266071

讨论了天然气水合物在合成和分解过程中声学参数如声速、频率、声波幅度的一些变化规律 ,并利用这些参数的变化对纯水中天然气水合物形成和分解进行声学检测 ,找出声学参数与水合物形成和分解之间的变化规律 ,以达到判断和预测水合物形... 详细信息

讨论了天然气水合物在合成和分解过程中声学参数如声速、频率、声波幅度的一些变化规律 ,并利用这些参数的变化对纯水中天然气水合物形成和分解进行声学检测 ,找出声学参数与水合物形成和分解之间的变化规律 ,以达到判断和预测水合物形成和分解的目的 .

关键词：天然气水合物超声声速频率幅度