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Local singularity and S–A methods for analyzing ore-producing anomalies in the Jianbiannongchang area of Heilongjiang,China

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Acta Geochimica 2023年第2期42卷 360-372页

作者： Zhonghai Zhao Kai Qiao Yiwen Liu Xiaomeng Cui Binbin cheng shanshan Liang chenglu Li College of Mining Liaoning Technical UniversityFuxin 123000China Heilongjiang Institute of Natural Resources Survey Haerbin 150036China

The Heilongjiang Jianbiannongchang area is located at the confluence of the Great and Lesser Xing’an *** area has a complex magmatic and tectonic evolutionary history that has resulted in a complex and diverse geological background for *** this study,isometric logarithmic ratio(ILR)transformations of Au,Cu,Pb,Zn,and Sb contents were performed in the1:50,000 soil geochemical data of the Jianbiannongchang *** principal component analysis(RPCA)was conducted based on ILR *** local singularity and spectrum-area(S-A)methods were used to extract information on mineralogic *** results showed that:(1)the transformed data eliminated the influence of the original data closure effect,and the PC1and PC2 information obtained by applying RPCA reflected ore-producing element anomalies dominated by Au and Cu.(2)The local singularity method can enhance the information of the local strong and weak slow *** performing local singularity analysis on PC1 and PC2,the obtained local anomalies reflected the local singularity spatial anomaly patterns related to Cu and Au mineralization in this area,which is an effective method for trapping ore-producing anomalies.(3)Furthermore,the composite anomaly decomposition of PC1 and PC2 was performed using the S-A method,and the screened anomalous and background fields reflect the ore-producing anomalies related to Cu and Au *** information is in agreement with known Cu and Au mineralization.(4)The geochemical anomalies with mineralization potential were obtained outside the known mineralization sites by integrating the information of oreproducing anomalies extracted by the local singularity and S-A methods,providing the theoretical basis and exploration direction for future exploration in the study area.

关键词： Geochemistry Local singularity S-A method Robust principal component analysis Jianbiannongchang area in Heilongjiang Province

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社区居民对院前脑卒中发病症状处理知识掌握的现状及影响因素分析

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中国护理管理 2015年第7期15卷 865-869页

作者：赵秋利张肖左庆庆朱雨岚程姗姗罗潇哈尔滨医科大学护理学院哈尔滨医科大学附属第二医院哈尔滨市150001 哈尔滨医科大学附属第二医院神经内科哈尔滨医科大学

目的 :了解社区居民对院前脑卒中发病症状处理知识掌握的现状及影响因素。方法 :采用院前脑卒中发病症状处理知识问卷,调查哈尔滨市6个社区脑卒中高危者及其照顾者共574例。结果 :脑卒中高危者及其照顾者的院前脑卒中症状处理知识问卷... 详细信息

目的 :了解社区居民对院前脑卒中发病症状处理知识掌握的现状及影响因素。方法 :采用院前脑卒中发病症状处理知识问卷,调查哈尔滨市6个社区脑卒中高危者及其照顾者共574例。结果 :脑卒中高危者及其照顾者的院前脑卒中症状处理知识问卷得分为(59.45±16.16)分,呈中等偏下水平,问卷的三个部分按照标准化得分高低排序依次为典型症状伴抽搐的处理、典型症状的处理、典型症状伴呕吐的处理。多元线性回归分析结果显示,脑卒中高危者及其照顾者的院前脑卒中症状处理知识水平受不良生活习惯(吸烟、饮酒)、文化程度、体检情况、脑卒中知晓情况的影响(P<0.05)。结论 :哈尔滨市6个社区居民院前脑卒中症状处理的知识呈中等偏下水平,受不良生活习惯(吸烟、饮酒)、文化程度、体检情况、脑卒中知晓情况的影响。

关键词：院前卒中症状处理问卷调查

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Estimation of rock Fe content based on hyperspectral indices

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Journal of Arid Land 2021年第12期13卷 1287-1298页

作者： WANG Jinlin WANG Wei cheng Yinyi ZHANG Zhixin WANG shanshan ZHOU Kefa LI Pingheng State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Xinjiang Key Laboratory of Mineral Resources and Digital Geology Urumqi 830011China Xinjiang Research Centre for Mineral Resources Chinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Zhejiang A&F University Hangzhou 311300China

Information on the Fe content of bare rocks is needed for implementing geochemical processes and identifying ***,the influence of Fe content on the spectra of bare rocks has not been thoroughly analyzed in previous *** Saur Mountain region within the Hoboksar of the Russell Hill depression was selected as the study ***,we analyzed six hyperspectral indices related to rock Fe content based on laboratory measurements(Dataset I)and field measurements(Dataset II).In situ field measurements were acquired to verify the laboratory *** content of the rock samples collected from different fresh and weathered rock surfaces were divided into six levels to reveal the spatial distributions of Fe content of these *** addition,we clearly displayed wavelengths with obvious characteristics by analyzing the spectra of these *** results of this work indicated that Fe content estimation models based on the fresh rock surface measurements in the laboratory can be applied to in situ field or satellite-based measurements of Fe content of the weathered rock *** is not the best way to use only the single wavelengths reflectance at all absorption wavelengths or the depth of these absorption features to estimate Fe *** on sample data analysis,the comparison with other indices revealed that the performance of the modified normalized difference index is the best indicator for estimating rock Fe content,with R2 values of 0.45 and 0.40 corresponding to datasets I and II,***,the modified normalized difference index(the wavelengths of 2220,2290,and 2370 nm)identified in this study could contribute considerably to improve the identification accuracy of rock Fe content in the bare rock *** method proposed in this study can obviously provide an efficient solution for large-scale rock Fe content measurements in the field.

关键词： bare rocks Fe content reflectance spectral indices modified normalized difference index Saur Mountain

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Sustaining enhanced condensation on hierarchical mesh-covered surfaces

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National Science Review 2018年第6期5卷 878-887页

作者： Rongfu Wen shanshan Xu Dongliang Zhao Lixin Yang Xuehu Ma Wei Liu Yung-cheng Lee Ronggui Yang School of Energy and Power Engineering Huazhong University of Science and Technology Department of Mechanical Engineering University of Colorado Schoolof Mechanical Electronic and Control Engineering Beijing Jiaotong University State Key Laboratory of Fine Chemicals Liaoning Key Laboratory of Clean Utilization of Chemical ResourcesInstitute of Chemical Engineering Dalian University of Technology

Controlling the solid–liquid–vapor tri-phase interface is of fundamental importance for a broad range of industrial applications including biomedical engineering, energy production and utilization, environmental control, water production, and thermal management. Although a lot of progress has been made over the past few decades on surface manipulation for promoting droplet removal, it is challenging to accelerate both droplet growth and surface refreshing for enhancing vapor-to-liquid condensation. Here we present a superhydrophobic hierarchical mesh-covered(hi-mesh) surface to enable continuous sucking flow of liquid condensate, which achieves fourfold-higher droplet growth and 36.8% faster surface refreshing compared to the state-of-the-art dropwise condensation. Unprecedented enhanced condensation heat transfer is observed to be sustained over a wide range of surface subcooling on the hi-mesh surfaces. This demonstration of sustained enhanced condensation enhancement is not only of fundamental scientific importance, but also provides a viable strategy for large-scale deployment of micro/nanostructured surfaces in a diverse range of technologies.

关键词： condensation hierarchical mesh sucking flow droplet dynamic water-repellency heat transfer enhancement

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新型饮食干预方案对血脂异常的高校教师饮食行为改变效果的研究

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中国实用护理杂志 2016年第32期32卷 -页

作者：刘爽赵秋利王艳秋马江平程姗姗苍爽 150008 哈尔滨医科大学附属第二医院护理学院哈尔滨医科大学附属第二医院体检中心

目的：构建血脂异常的高校教师新型饮食干预方案，探讨此方案对饮食行为改变的效果。方法选取东北林业大学和黑龙江大学2014年6-9月体检血脂异常的教师，其中东北林业大学最终入选44名教师作为试验组，进行新型饮食方案干预，黑龙江大... 详细信息

目的：构建血脂异常的高校教师新型饮食干预方案，探讨此方案对饮食行为改变的效果。方法选取东北林业大学和黑龙江大学2014年6-9月体检血脂异常的教师，其中东北林业大学最终入选44名教师作为试验组，进行新型饮食方案干预，黑龙江大学最终入选37名教师作为对照组，进行常规健康讲座。比较2组研究对象干预前后的饮食行为及血脂的变化。结果试验组在干预后饮食行为改变尤为明显，干预前、干预后3个月及6个月的成年人心脑血管病饮食倾向量表（DTS）分别为（58.82±18.47）、（48.36±14.25）、（44.18±14.92）分，差异有统计学意义（F=21.308，P0.05）。干预6个月后，试验组的总胆固醇（TC）为（4.28±3.73）mmol/L，对照组为（6.23±1.04）mmol/L，差异有统计学意义（t=3.082，P0.05）。结论新型饮食干预方案能够有效改进并维持血脂异常教师的饮食行为，并降低其血脂。

关键词：血脂异常高校教师饮食干预饮食行为改变

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哈尔滨市居民血脂相关膳食知识掌握现状及影响因素

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护理学杂志 2016年第23期31卷 83-86页

作者：梁娜赵秋利贺育华王艳秋刘爽马江平程姗姗哈尔滨医科大学护理学院/哈尔滨医科大学附属第二医院黑龙江哈尔滨150086

目的了解哈尔滨市居民对血脂相关膳食知识的掌握现状,并分析其影响因素。方法采用自制血脂相关膳食知识问卷调查哈尔滨市居民881名。结果血脂相关膳食知识问卷标准化得分为54.34±14.96,5个维度得分由高到低依次为胆固醇膳食知识、总能... 详细信息

目的了解哈尔滨市居民对血脂相关膳食知识的掌握现状,并分析其影响因素。方法采用自制血脂相关膳食知识问卷调查哈尔滨市居民881名。结果血脂相关膳食知识问卷标准化得分为54.34±14.96,5个维度得分由高到低依次为胆固醇膳食知识、总能量膳食知识、脂肪膳食知识、膳食纤维膳食知识、健康生活方式知识。回归分析结果显示,居民血脂相关膳食知识掌握受家庭所在地、文化程度、家庭人均月收入、是否吸烟影响(调整R2=0.148)。结论哈尔滨市居民血脂相关膳食知识掌握呈中等偏下水平,家庭在农村、低学历、家庭人均月收入低、吸烟人群血脂相关膳食知识掌握较差,应将其作为血脂相关膳食健康教育的重点人群。

关键词：社区居民血脂膳食知识

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Inducement of Sechenov inhibition by EtOH and NA in the Bufo toad

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Chinese Science Bulletin 2008年第8期53卷 1193-1196页

作者： LI RuXin JIA shanshan LI YingZi CAO Yin cheng XiuZhen XIE ZuoPing Department of Biological Sciences and Biotechnology National State Key Laboratory of Biomembrane and Membrane Biotechnology Tsinghua University Beijing 100084 China Department of Physiology Weifang Medical University Weifang 261042 China

Central inhibition, discovered by Sechenov in 1862, suggests that electrically stimulating the forebrain or medulla oblongata in frog generally suppresses reflexes. However, the underlying molecular mechanisms are still unclear. Using ethanol (EtOH), noradrenalin (NA), and other neurotransmitters in thalamic preparations, Sechenov inhibition was stimulated in Bufo toads in this study. The result showed that, similar to Sechenov inhibition, the acute application of EtOH or NA excited the thalamus and prolonged the latency of withdrawal reflex. Our study evidences the involvement of α-adrenoceptors in such central inhibition, and explains the role of acute EtOH application in the in- duction of reflex inhibition.

关键词：乙醇去甲肾上腺素抑制作用 NA 蟾蜍

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Gravity Flow on Slope and Abyssal Systems in the Qiongdongnan Basin,Northern South China Sea

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Acta Geologica Sinica(English Edition) 2011年第1期85卷 243-253页

作者： SU Ming XIE Xinong LI Junliang JIANG Tao ZHANG cheng HE Yunlong TIAN shanshan ZHANG Cuimei Key Laboratory of Tectonics and Petroleum Resources （China University of Geosciences） Ministry of Education Wuhan 430074 China CAS Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Department of Technology Zhanjiang Branch of CNOOC Zhanjiang 524057 China

The study of new seismic data permits the identification of sediment gravity flows in terms of internal architecture and the distribution on shelf and abyssal setting in the Qiongdongnan Basin （QDNB）. Six gravity flow types are recognized：（1） turbidite channels with a truncational basal and concordant overburden relationship along the shelf edge and slope, comprising laterally-shifting and vertically-aggrading channel complexes; （2） slides with a spoon-shaped morphology slip steps on the shelf-break and generated from the deformation of poorly-consolidated and high water content sediments; （3） slumps are limited on the shelf slope, triggered either by an anomalous slope gradient or by fault activity; （4） turbidite sheet complexes （TSC） were ascribed to the basin-floor fan and slope fan origin, occasionally feeding the deep marine deposits by turbidity currents; （5） sediment waves occurring in the lower slope-basin floor, and covering an area of approximately 400 km2, were generated beneath currents flowing across the sea bed; and （6） the central canyon in the deep water area represents an exceptive type of gravity flow composed of an association of debris flow, turbidite channels, and TSC. It presents planar multisegment and vertical multiphase characteristics. Turbidite associated with good petrophysical property in the canyon could be treated as a potential exploration target in the QDNB.

关键词： gravity flow slope and abyssal system Qiongdongnan Basin South China Sea

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Adjustment of flood discharge capacity with varying boundary conditions in a braided reach of the Lower Yellow River

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Journal of Geographical Sciences 2021年第11期31卷 1615-1632页

作者： cheng Yifei XIA Junqiang ZHOU Meirong DENG shanshan LI Zhiwei State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan UniversityWuhan 430072China

It is of necessity to investigate the adjustment of flood discharge capacity in the Lower Yellow River(LYR)because of its profound importance in sediment transport and flood control decision-making,and additionally its magnitude is influenced by the channel and upstream boundary conditions,which have significantly varied with the ongoing implementation of soil and water conservation measures in the Loess Plateau and the operation of the Xiaolangdi *** braided reach between two hydrometric stations of Huayuankou and Gaocun in the LYR was selected as the study *** parameters in the study reach during the period 1986-2015 were calculated,covering bankfull discharge(the indicator of flood discharge capacity),the pre-flood geomorphic coefficient(the indicator of channel boundary condition),and the previous five-year average fluvial erosion intensity during flood seasons(the indicator of incoming flow and sediment regime).Functional linkages at scales of section and reach were then developed respectively to quantitatively demonstrate the integrated effects of channel and upstream boundary conditions on the flood discharge *** show that:(1)the reach-scale bankfull discharge in the pre-dam stage(1986-1999)decreased rapidly by 50%,accompanied with severe channel aggradation and main-channel *** recovered gradually as the geometry of main channel became narrower and deeper in the post-dam stage,with the geomorphic coefficient continuously reducing to less than 15 m-12.(2)The response of bankfull discharge to the channel and upstream boundary conditions varied at scales of section and reach,and consequently the determination coefficients differed for the comprehensive equations,with a smallest value at the Jiahetan station and a highest value(0.91)at reach ***,the verified results calculated using the comprehensive equations agreed well with the corresponding measured values in 2014-2015.(3)The effect of channel boundary c

关键词： flood discharge capacity channel boundary flow-sediment regime braided reach Lower Yellow River

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3D-printed controllable gradient pore superwetting structures for high temperature efficient oil-water separation

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Journal of Materiomics 2021年第1期7卷 8-18页

作者： Zhipeng Jin Hui Mei Yuekai Yan Longkai Pan Hongxia Liu shanshan Xiao Laifei cheng Science and Technology on Thermostructural Composite Materials Laboratory School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi'anShaanxi710072China

Superwetting surfaces have the potential to address oil pollution in water,through their ability to separate the ***,it remains a great challenge to fabricate stable and efficient separation structures using conventional manufacturing ***,the materials traditionally used for oil-water separation are not stable at high ***,there is a need to develop stable,customizable structures to improve the performance of oil-water separation *** recent years,3D printing technology has developed rapidly,and breakthroughs have been made in the fabrication of complicated ceramic structures using this ***,a ceramic material with a gradient pore structure and superhydrophobic/superoleophilic properties was prepared using 3D printing for high-efficiency oil-water *** gradient pore structure developed here can support a flux of up to 25434 L/m^(2)h,which is nearly 40%higher than that an analogous structure with straight *** 200℃,the oil-water separation performance was maintained at 97.4%.Furthermore,samples of the material exhibited outstanding mechanical properties,and chemical stability in a variety of harsh *** study provides an efficient,simple,and reliable method for manufacturing oil-water separation materials using 3D printing,and may have broader implications for both fundamental research and industrial applications.

关键词： 3D printing Gradient pore structure High temperature resistance Surface functionalization Oil/water separation

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