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Clinical application progress of regional oxygen saturation monitoring in perioperative period
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作者 Ye-Ying Zheng Fei Guo Wei Wei 《海南医科大学学报(英文版)》 2019年第6期67-72,共6页
Regional oxygen saturation (rSO2) is a new method to evaluate regional oxygen supply and demand balance by near-infrared spectroscopy. It has the advantages of noninvasive, continuous and sensitive, and has been succe... Regional oxygen saturation (rSO2) is a new method to evaluate regional oxygen supply and demand balance by near-infrared spectroscopy. It has the advantages of noninvasive, continuous and sensitive, and has been successfully applied in clinical guidance. Regional oxygen saturation is usually referred to as regional cerebral oxygen saturation (rScO2) and regional tissue oxygen saturation (rStO2) depending on the site of monitoring. Initially, cerebral oxygen saturation monitoring has been used in cardiothoracic surgery and in non-cardiac surgery for elderly and critically ill patients. With the increase of clinical application, regional oxygen saturation is gradually extended to the determination of oxygen saturation in peripheral tissues, which is used to evaluate the relationship between peripheral tissue microcirculation function and the prognosis of patients. Timely detection of tissue ischemia and hypoxia and intervention can optimize the whole clinical treatment management, especially for major surgery and critically ill patients can reduce the incidence of complications during hospitalization, shorten hospitalization time, improve the prognosis of patients. This article will focus on the clinical application of cerebral oxygen saturation and tissue oxygen saturation in perioperative period. 展开更多
关键词 REGIONAL OXYGEN SATURATION REGIONAL tissue OXYGEN SATURATION REGIONAL CEREBRAL OXYGEN SATURATION PERIOPERATIVE PERIOD Clinical application
Diurnal Variations of Precipitation over North China Regulated by the Mountain-plains Solenoid and Boundary-layer Inertial Oscillation 预览
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作者 He PAN Guixing CHEN 《大气科学进展:英文版》 SCIE CAS CSCD 2019年第8期863-884,共22页
The mountain-plains solenoid(MPS) and boundary-layer inertial oscillation(BLO) are two typical regional forcings at the diurnal time scale. Their relative role in regulating the diurnal variations of summer rainfall o... The mountain-plains solenoid(MPS) and boundary-layer inertial oscillation(BLO) are two typical regional forcings at the diurnal time scale. Their relative role in regulating the diurnal variations of summer rainfall over North China and their change under different monsoon conditions are studied using a 19-yr archive of satellite rainfall and reanalysis data. It is shown that both a strong MPS and BLO can increase nocturnal rainfall in the North China plains but exhibit evident regional differences. The MPS-induced nocturnal rainfall is relatively confined to the plains adjacent to mountains from late night to morning, due to the upward branch of the nighttime MPS. In contrast, the BLO-induced nocturnal rainfall strengthens from early evening and is more extensive in early morning over the open plains further east. The contrasting effect in the evening is related to the convergent(divergent) easterly anomaly in the plains under the BLO(MPS). The BLO also induces the relatively strong enhancement of moisture convergence and high humidity by the southerly anomaly at late night. On strong monsoon days, the nocturnal rainfall amount associated with the MPS and BLO increases considerably in the plains.Both regional forcings become effective in regulating the rainfall diurnal cycle with enhanced moisture convergence under monsoon conditions. Their induced diurnal amplitudes of moisture convergence can be comparable to the daily mean by monsoon flow. The regional forcings thus couple with monsoon flow to strengthen rainfall in the plains, particularly from late night to morning. The results highlight that a combination of regional and large-scale forcings can strongly regulate the warm-season climate. 展开更多
关键词 DIURNAL cycle NOCTURNAL rainfall REGIONAL forcings summer MONSOON REGIONAL climate
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Dynamical downscaling of regional climate: A review of methods and limitations
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作者 Zhongfeng XU Ying HAN Zongliang YANG 《中国科学:地球科学英文版》 SCIE EI CAS CSCD 2019年第2期365-375,共11页
The traditional dynamical downscaling (TDD) method employs continuous integration of regional climate models (RCM) with the general circulation model (GCM) providing the initial and lateral boundary conditions. Dynami... The traditional dynamical downscaling (TDD) method employs continuous integration of regional climate models (RCM) with the general circulation model (GCM) providing the initial and lateral boundary conditions. Dynamical downscaling simulations are constrained by physical principles and can generate a full set of climate information, providing one of the important approaches to projecting fine spatial-scale future climate information. However, the systematic biases of climate models often degrade the TDD simulations and hinder the application of dynamical downscaling in the climate-change related studies. New methods developed over past decades improve the performance of dynamical downscaling simulations. These methods can be divided into four groups: the TDD method, the pseudo global warming method, dynamical downscaling with GCM bias corrections, and dynamical downscaling with both GCM and RCM bias corrections. These dynamical downscaling methods are reviewed and compared in this paper. The merits and limitations of each dynamical downscaling method are also discussed. In addition, the challenges and potential directions in progressing dynamical downscaling methods are stated. 展开更多
关键词 Global circulation MODEL BIAS correction REGIONAL CLIMATE MODEL DOWNSCALING Projection of REGIONAL CLIMATE
Spatial Concentration of Innovation Activities in China and the Role of Mega-economic Zones
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作者 Ru Ma Wan-Hsin Liu 《中国与世界经济:英文版》 2019年第2期24-43,共20页
This paper analyzes the development of spatial concentration of various innovation activities in China from 2000 to 2015 by using a generalized Theil index based on a balanced provincial dataset.It tracks concentratio... This paper analyzes the development of spatial concentration of various innovation activities in China from 2000 to 2015 by using a generalized Theil index based on a balanced provincial dataset.It tracks concentration development back to the developing heterogeneity within and between regions in general and the mega-economic zones in particular.Results show that innovation activities tend to be distributed unequally across provinces in China,with more pronounced unequal distribution of innovation outcomes than innovation inputs.Over the research period,the innovation activities considered became more and more equally distributed across provinces.The between-region inequality of innovation activities has,however,not yet significantly improved,despite the implementation of Chinese regional policies to encourage more equal regional development.Instead,more equal distribution of innovation activities within megaeconomic zones is observed. 展开更多
关键词 innovation REGIONAL POLICY spatial CONCENTRATION THEIL index
High-speed Rail and Urban Economic Growth in China after the Global Financial Crisis
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作者 Shujie Yao Fan Zhang +1 位作者 Feng Wang Jinghua Ou 《中国与世界经济:英文版》 2019年第2期44-65,共22页
High-speed rail(HSR)has been an important driver of China s economic expansion over the last decade.Using data of 285 prefecture-level cities over 2010-2014,this paper proposes an endogenous economic growth model to e... High-speed rail(HSR)has been an important driver of China s economic expansion over the last decade.Using data of 285 prefecture-level cities over 2010-2014,this paper proposes an endogenous economic growth model to explain how and why HSR may have propelled China s economic growth by reducing the time-space between cities.The research results show that HSR has a potent effect on urban economic growth and regional convergence.Ceteris paribus,HSR appears to have accelerated economic growth by more than 0.6 percent and the pace of regional economic convergence by approximately 2 percent per annum over the data period.Our research findings have important policy implications for the sustainability of China s economic development,backed by HSR. 展开更多
关键词 China ECONOMIC growth HIGH-SPEED RAIL REGIONAL CONVERGENCE
A Fundamental Study on Multi-agent Pedestrian Model Based on Risk Avoidance Behavior during Road Blockage and Evacuation Simulation of Regional Urban Disaster 预览
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作者 Hideaki Takayanagi Tatsuto Kihara +5 位作者 Yosuke Kurita Kazuhide Kawaguchi Hidetoshi Kawaguchi Takaaki Furukawa Takuhi Ono Shogo Yamada 《土木工程与建筑:英文版》 2019年第4期219-237,共19页
Regional cities in Japan are at the risk of experiencing big fire accidents or earthquakes every day.However,neither the number nor the capacity of shelters has increased because local governments might not consider t... Regional cities in Japan are at the risk of experiencing big fire accidents or earthquakes every day.However,neither the number nor the capacity of shelters has increased because local governments might not consider them owing to budget shortfall.By contrast,wide-area evacuation simulations can easily provide an antagonizing image of regional urban disasters.After a disaster,the city collapses and the evacuation routes are closed;consequently,evacuees feel anxious and they cannot move as usual.This anxiety behavior has not been considered in previous related studies and simulations.In this study,a wide-area evacuation simulation is developed;this model can not only calculate the possibility of blocking escape routes when the city is broken but also provide safe and more realistic evacuation plans before a disaster occurs by incorporating into the simulation the risk avoidance behaviors of evacuees from road blockage,such as“the route re-seeking behavior”and“the shelter re-selecting behavior”. 展开更多
关键词 Wide-area EVACUATION simulation MULTI-AGENT model risk AVOIDANCE BEHAVIOR regional DISASTER prevention plan
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臀部软组织解剖及脂肪塑形安全层次探讨
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作者 孟湉 斯楼斌 +2 位作者 龙飞 戚征 王阳 《中华整形外科杂志》 CAS CSCD 北大核心 2019年第8期741-747,共7页
目的研究臀部各组织层次的形态学特点和重要解剖结构,探讨臀部脂肪塑形推荐层次及安全区域。方法对14具成人尸体28侧臀部标本进行解剖,其中新鲜尸体8具16侧,甲醛溶液保存的尸体6具12侧,男性2例,平均年龄49岁,女性12例,年龄23~72岁,中位... 目的研究臀部各组织层次的形态学特点和重要解剖结构,探讨臀部脂肪塑形推荐层次及安全区域。方法对14具成人尸体28侧臀部标本进行解剖,其中新鲜尸体8具16侧,甲醛溶液保存的尸体6具12侧,男性2例,平均年龄49岁,女性12例,年龄23~72岁,中位年龄46岁。对尸体臀部进行逐层解剖,观察其各组织层次形态学特点,浅、深筋膜系统、脂肪组织分布特点以及臀部大血管神经与组织层次的关系。结果臀部软组织层次由浅入深为皮肤、皮下脂肪、浅筋膜系统、深筋膜系统、肌肉及其筋膜室。皮下脂肪分浅、深2层分布;浅筋膜系统发达致密,呈层状结构;深筋膜菲薄,呈肌外膜性筋膜特点;臀部存在一危险三角区,即以第一骶椎为顶点、两侧臀下皱襞内侧2/3为底点相连的三角形区域的深层肌肉,重要血管神经位于此区。结论针对中国人臀部的形态特点,脂肪塑形时主要抽吸髂腰部、大腿后外侧脂肪,可显著增加臀部相对突度和饱满度;臀部丰满者可适当抽吸深层脂肪;应轻柔纵向抽吸,以减少对浅筋膜系统的损伤。臀部脂肪注射存在较高风险,推荐使用内径3 mm以上的钝头针管,平行于臀大肌纤维走向,边退针边扇形均匀注射。将大部分脂肪注射于皮下脂肪层即可获得满意效果,避免向危险区域深层注射移植物。 展开更多
关键词 臀部 解剖学 局部 脂肪抽吸 脂肪颗粒注射移植术
基于区域体育赛事创新网络的社会文化环境的营造 预览
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作者 张辉 诸葛善兵 《浙江体育科学》 2019年第1期26-30,共5页
运用规范研究范式,依托区域经济学相关理论,首先分别对区域体育赛事网络内涵及结点构成、区域体育赛事社会文化环境的内涵和作用进行了研究,进一步基于区域体育赛事创新网络视角讨论了体育价值观以及协作、信任等社会文化环境的营造问... 运用规范研究范式,依托区域经济学相关理论,首先分别对区域体育赛事网络内涵及结点构成、区域体育赛事社会文化环境的内涵和作用进行了研究,进一步基于区域体育赛事创新网络视角讨论了体育价值观以及协作、信任等社会文化环境的营造问题。研究认为:区域内人们的体育价值观主要是由赛事网络内的政府、体育中介、赛事管理者及高校等行为主体通过一系列的制度创新在长期的共同努力中形成的;协作和信任的社会文化环境主要是由赛事网络内的政府、体育中介、赛事管理者等行为主体通过一系列的制度创新在长期的共同努力下营造的。 展开更多
关键词 区域 体育赛事 创新网络 社会文化环境
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Building the Bridge between the Academia and the Regional Government in Hospitality. A Case Study 预览
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作者 Luís Farinha Ana Rita Baptista Garcia Sara Brito Filipe 《人力资源管理和服务》 2019年第1期49-59,共11页
This paper attempts to shed light on the current role of academia in the context of rural areas of low population density, which are regional interaction models. In this study, we follow a qualitative research methodo... This paper attempts to shed light on the current role of academia in the context of rural areas of low population density, which are regional interaction models. In this study, we follow a qualitative research methodology of a case study. We found that through the case study applied to a hotel unit, that the Academia can through its third mission, and in the context of regional triple helix dynamics (Academia-Business-government interaction), play an important role in terms of knowledge dissemination, wealth creation and employability. The limitations, which our study presents, are principally related to the measurement of the variables. Some of the characteristics of education should be studied more deeply. In the instance of a case study applied to the hospitality industry, it is important to take as limitations of the study to its direct application to any economic context. This study allowed however, contribute to the enrichment of literature through case studies presented in the hospitality industry. 展开更多
关键词 HEIs Third MISSION TRIPLE HELIX TOURISM HOSPITALITY Regional Development Monsanto GeoHotel Escola
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区域危险废物集散平台构建研究 预览
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作者 乔贞 《中国资源综合利用》 2019年第8期55-57,共3页
目前,危险废物处理处置领域普遍存在设施相对过剩和区域性不足并存的现象。本研究提出建立区域性的危险废物集散平台,将危险废物信息交换平台、危险废物鉴别核准预处理技术中心、危险废物区域性暂存中心功能纳入其中,以提高区域危险废... 目前,危险废物处理处置领域普遍存在设施相对过剩和区域性不足并存的现象。本研究提出建立区域性的危险废物集散平台,将危险废物信息交换平台、危险废物鉴别核准预处理技术中心、危险废物区域性暂存中心功能纳入其中,以提高区域危险废物的处理处置效率和资源化利用水平。 展开更多
关键词 区域 危险废物 集散平台
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Regional and Global Land Data Assimilation Systems: Innovations,Challenges, and Prospects
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作者 Youlong XIA Zengchao HAO +5 位作者 Chunxiang SHI Yaohui LI Jesse MENG Tongren XU Xinying WU Baoqing ZHANG 《气象学报:英文版》 SCIE CSCD 2019年第2期159-189,共31页
Since the North American and Global Land Data Assimilation Systems(NLDAS and GLDAS) were established in2004, significant progress has been made in development of regional and global LDASs. National, regional, projectb... Since the North American and Global Land Data Assimilation Systems(NLDAS and GLDAS) were established in2004, significant progress has been made in development of regional and global LDASs. National, regional, projectbased, and global LDASs are widely developed across the world. This paper summarizes and overviews the development, current status, applications, challenges, and future prospects of these LDASs. We first introduce various regional and global LDASs including their development history and innovations, and then discuss the evaluation, validation, and applications(from numerical model prediction to water resources management) of these LDASs. More importantly, we document in detail some specific challenges that the LDASs are facing: quality of the in-situ observations, satellite retrievals, reanalysis data, surface meteorological forcing data, and soil and vegetation databases;land surface model physical process treatment and parameter calibration;land data assimilation difficulties;and spatial scale incompatibility problems. Finally, some prospects such as the use of land information system software, the unified global LDAS system with nesting concept and hyper-resolution, and uncertainty estimates for model structure,parameters, and forcing are discussed. 展开更多
关键词 LAND data ASSIMILATION system (LDAS) REGIONAL and GLOBAL LDASs in-situ observation satellite RETRIEVAL LAND surface model (LSM)
Seasonal variation in surface ozone and its regional characteristics at global atmosphere watch stations in China
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作者 Ningwei Liu Weili Lin +2 位作者 Jianzhong Ma Wanyun Xu Xiaobin Xu 《环境科学学报:英文版》 SCIE EI CAS CSCD 2019年第3期291-302,共12页
We investigated the seasonal and spatial ozone variations in China by using three-year surface ozone observation data from the six Chinese Global Atmosphere Watch(GAW)stations and tropospheric column ozone data from s... We investigated the seasonal and spatial ozone variations in China by using three-year surface ozone observation data from the six Chinese Global Atmosphere Watch(GAW)stations and tropospheric column ozone data from satellite retrieval over the period2010–2012. It is shown that the seasonal ozone variations at these GAW stations are rather different, particularly between the western and eastern locations. Compared with western China, eastern China has lower background ozone levels. However, the Asian summer monsoon(ASM) can transport photochemical pollutants from the southern to the northern areas in eastern China, leading to a northward gradual enhancement of background ozone levels at the eastern GAW stations. Over China, the tropospheric column ozone densities peak during spring and summer in the areas that are directly and/or indirectly affected by the ASM, and the peak time lags from the south to the north in eastern China. We also investigated the regional representativeness of seasonal variations of ozone at the six Chinese GAW stations using the yearly maximum tropospheric column month as indicator.The results show that the seasonal variation characteristics of ozone revealed by the Chinese GAW stations are typical, with each station having a considerable large surrounding area with the ozone maximum occurring at the same month. Ozone variations at the GAW stations are influenced by many complex factors and their regional representativeness needs to be investigated further in a broader sense. 展开更多
关键词 Surface OZONE TROPOSPHERIC OZONE COLUMN GAW STATIONS SEASONAL variations Regional REPRESENTATIVENESS
综合性人文社科期刊影响力和传播力分析——以长三角地区为例 预览
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作者 刘鑫 薛晶晶 《金陵科技学院学报:社会科学版》 2019年第1期83-87,共5页
综合性人文社科期刊在传承文明、创新理论、提升民族文化素质等方面具有重要作用。采用文献计量学方法总体评估长三角地区综合性人文社科期刊的影响力和传播力,结果显示,无论是地区整体还是各省(市)内部,综合性人文社科期刊的传播力和... 综合性人文社科期刊在传承文明、创新理论、提升民族文化素质等方面具有重要作用。采用文献计量学方法总体评估长三角地区综合性人文社科期刊的影响力和传播力,结果显示,无论是地区整体还是各省(市)内部,综合性人文社科期刊的传播力和影响力水平都存在较大差异。因此有必要从区域性和协同性两个方面破解发展困境,以实现长三角地区文化特色发展和期刊整体水平提升的目标。 展开更多
关键词 综合性人文社科期刊 影响力 传播力 区域性 协同性 长三角地区
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立足区域优势,壮大鄂茶区域公用品牌 预览
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作者 曾维超 唐海燕 杨玻 《湖北农业科学》 2019年第S1期101-102,共2页
分别从区域特色、品牌知名度、品牌价值和品牌管控等方面具体介绍湖北茶叶区域公用品牌发展的特点,分析当前主要面临的困难,并针对壮大鄂茶区域公用品牌提出合理化对策与建议。
关键词 鄂茶 区域 公用品牌
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Impact of Ningbo Port Logistics on Regional Economic Development of Zhejiang Province 预览
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作者 Ye TIAN 《亚洲农业研究:英文版》 2019年第7期16-18,共3页
In related academic circles, the research on port logistics industry and regional economic development has become a hot topic in recent years, and there are already extensive studies about this topic. Taking Ningbo Po... In related academic circles, the research on port logistics industry and regional economic development has become a hot topic in recent years, and there are already extensive studies about this topic. Taking Ningbo Port as an example, this paper analyzed its logistics development status, and discussed the existing problems. Besides, taking the time series data of Ningbo Port from 2007 to 2016 as sample data, and using the quantitative analysis methods such as correlation analysis and regression analysis, it systematically studied the interaction between the port development and regional economic development. Finally, on the basis of the problems, it came up with some recommendations. 展开更多
关键词 PORT LOGISTICS REGIONAL ECONOMIC DEVELOPMENT IMPACT Empirical study
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基于区域划分方法的中国人口分布格局及变化研究——从1953年到2010年
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作者 刘翠玲 许亚平 王法辉 《地理学报:英文版》 SCIE CSCD 2019年第11期1908-1922,共15页
This study uses six censuses (1953,1964,1982,1990,2000,and 2010) at the county level since the foundation of the People’s Republic of China to examine the changes of population density pattern in mainland China over ... This study uses six censuses (1953,1964,1982,1990,2000,and 2010) at the county level since the foundation of the People’s Republic of China to examine the changes of population density pattern in mainland China over time.Based on the Gini coefficient,the change of disparity in population density followed a “U-shaped” trend,i.e.,decreasing during 1953–1982 and increasing during 1982–2010.The shrinking disparity in the pre-reform periods was largely attributable to various ill-conceived political movements,and the enlarging gap in population growth rates in the post-reform era reflected a natural outcome of urbanization,which will continue in the foreseeable future.In addition,this research employs a GIS-automated regionalization method,REDCAP,to uncover a natural demarcation line like the classic “Hu Line” that divides China into two regions of similar area sizes but a strong contrast in population.The results show that the regionalization-derived lines were largely consistent with the Hu Line over time.Therefore,the disparity between the high-density southeast and low-density northwest regions is likely due to differing physical environments that form a natural barrier.Any public policy to overcome this barrier at a large scale is destined to be a vain attempt. 展开更多
关键词 regional population distribution TEMPORAL change DISPARITY GINI COEFFICIENT REGIONALIZATION GIS HU Line China
惠州市全域空间轴线研究
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作者 朱健华 《住宅产业》 2019年第5期12-15,共4页
为积极探索多规合一的空间规划编制和管理体系,集聚创新动能,谋划惠州未来20年的城市发展目标、发展路径、资源配置和空间部署。本文以惠州为例,以构建全域空间轴线为抓手,推动空间格局的供给侧结构性改革,激发沿线重要功能平台的空间活... 为积极探索多规合一的空间规划编制和管理体系,集聚创新动能,谋划惠州未来20年的城市发展目标、发展路径、资源配置和空间部署。本文以惠州为例,以构建全域空间轴线为抓手,推动空间格局的供给侧结构性改革,激发沿线重要功能平台的空间活力,协调解决市域发展不平衡不充分问题,提升城市能级,为新一轮的国土空间规划编制工作打下基础。 展开更多
关键词 全域 轴线 空间格局
城市休闲广场设计中的地域性表达--以衡阳市太阳广场提质改造设计为例
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作者 雷旭华 《住宅产业》 2019年第6期17-21,共5页
城市广场作为城市开放性户外活动空间,既是展示城市风貌的平台,又是市民活动的载体。随着中国城市化进程的加快,具有地域性特色的城市广场对于城市形象的塑造有着重要作用。本文结合设计实例,对城市广场地域性表达设计方法进行探索。
关键词 城市广场 地域性 广场设计
Projection of Landslides in China during the 21st Century under the RCP8.5 Scenario
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作者 Shuangshuang HE Jun WANG Huijun WANG 《气象学报:英文版》 SCIE CSCD 2019年第1期138-148,共11页
More and more rainstorms and other extreme weather events occur in the context of global warming, which may increase the risks of landslides. In this paper, changes of landslides in the 21 st century of China under th... More and more rainstorms and other extreme weather events occur in the context of global warming, which may increase the risks of landslides. In this paper, changes of landslides in the 21 st century of China under the high emission scenario RCP8.5(Representative Concentration Pathway) are projected by using a statistical landslide forecasting model and the regional climate model RegCM4.0. The statistical landslide model is based on an improved landslide susceptibility map of China and a rainfall intensity–duration threshold. First, it is driven by observed rainfall and RegCM4.0 rainfall in 1980–99, and it can reproduce the spatial distribution of landslides in China pretty well.Then, it is used to forecast the landslide changes over China in the future under the RCP8.5 scenario. The results consistently reveal that landslides will increase significantly in most areas of China, especially in the southeastern, northeastern, and western parts of Northwest China. The change pattern at the end of the 21 st century is generally consistent with that in the middle of the 21 st century, but with larger increment and magnitude. In terms of the probability,the proportion of grid points that are very likely and extremely likely to experience landslides will also increase. 展开更多
关键词 LANDSLIDES PROJECTION STATISTICAL LANDSLIDE forecasting MODEL regional climate MODEL
单元与聚落--湖北省竹溪县龙坝镇菜市场 预览
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作者 李伟 袁媛 《建筑技艺》 2019年第4期80-87,共8页
龙坝镇菜市场的设计以售卖单元作为设计研究的主要出发点,通过对使用尺度的研究,结合日常的身体经验,构建了一套完整的生成逻辑。同时,轻盈漂浮的屋顶形象与纤细钢柱组织而成的内部空间都是对场所特性阅读后的理想结果。
关键词 单元 日常 建构 菜市场 地域性
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