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冻干质控血清复溶后冰格保存的稳定性探讨 被引量:4
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作者 曾宇娟 邹燕 +1 位作者 冯树星 刘光金 《宜春学院学报》 2006年第2期90-91,共2页
目的:探讨冻干质控血清复溶后小包装冰格保存的稳定性。方法:将正常值和异常值两种室内质控血清复溶后各分装成15份,保存于普通冰箱的冰格内,然后每天各取出一份对ALT等18个临床生化项目进行检测,连续检测15天,计算15天检测结果的χ-、S... 目的:探讨冻干质控血清复溶后小包装冰格保存的稳定性。方法:将正常值和异常值两种室内质控血清复溶后各分装成15份,保存于普通冰箱的冰格内,然后每天各取出一份对ALT等18个临床生化项目进行检测,连续检测15天,计算15天检测结果的χ-、SD、RCV(%)和PT(%)平均成绩,以及测定值对保存时间进行直线回归方程分析。结果:18个项目,正常值和异常值RCV(%)均远小于我国以及WHO推荐的RCV(%);两种值的PT平均成绩(得分)均为100%;同时两种值的直线回归方程的斜率“b”与“0”均无显著性差异(P>0.05),其95%的可信区间均包括“0”这一点。结论:复溶后小包装放冰格保存的正常值和异常值质控血清非常稳定,对保证实验室日常工作的精密度和准确度具有实际意义。 展开更多
关键词 冻干质控血清 复溶 冰格 稳定性
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欢乐冰格
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作者 冰冻童年 《微型计算机》 2012年第23期96-96,共1页
小时候玩的冰格,只有一个简单的梯形,但也给我们带来了无尽的欢乐。现在冰格已经“改头换面”变得多种多样,让我们的欢乐有增无减。
关键词 冰格 产品介绍 设计方案 造型
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塑料冰格注塑模的设计改进
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作者 黄丽丹 《广东职业技术教育与研究》 2018年第1期190-193,共4页
笔者针对塑料冰格注塑件在试制时出现的问题,分析与排查了原因并从注塑模设计的浇注系统、冷却系统、排气系统三方面阐述了改进的依据与方法,对于提高注塑件合格率和生产效率及减少生产损耗有重要的指导意义。
关键词 塑料冰格 注塑模 模具改进
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世界上最快的冰格,10分钟就能冻出满满一盘冰
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《女性天地》 2016年第6期64-64,共1页
盛夏炎炎,人们开始对冰有了渴望。一口冰下肚,赶走躁热的烦。但我们常会碰到这样扫兴的情景:打开冰箱门才发现,自己忘记做冰块了。如果你家里有快速制冰神器“FreezeTHAT”,就不再扫兴了。
关键词 冰格 冰箱门 冰块 快速制冰神器
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临床化学室内质控品的选择 使用及保存 被引量:2
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作者 张东锋 戴彩华 《基层医学论坛》 2010年第7期257-259,共3页
目的探讨临床化学不同室内质控品的保存条件对其稳定性的影响,为基层医院选择与使用临床化学室内质控品提供实验依据。方法选取1种进口化学室内质控品(罗氏冻干血清)及2种国产质控品(北京中生及上海生物所)(以下简称中生和上生)。复溶... 目的探讨临床化学不同室内质控品的保存条件对其稳定性的影响,为基层医院选择与使用临床化学室内质控品提供实验依据。方法选取1种进口化学室内质控品(罗氏冻干血清)及2种国产质控品(北京中生及上海生物所)(以下简称中生和上生)。复溶后各以-20℃及4℃保存,用全自动生化仪分别测定其1d~6d12项生化项目,并对3种质控品的结果及2个月的结果进行统计分析。结果复溶后冰格保存的罗氏质控液结果比较稳定,月质控图CV(变异系数)值在3.3%~4.77%之间,而冰格保存的中生、上生质控品及冷藏室保存的全部质控品CV值大多数>5%.结论进口罗氏质控品复溶后经-20℃保存6d内结果稳定,是基层医院临床化学室内质控的理想质控品,国产上生所及中生公司质控品复溶后-20℃冰格保存6d内结果均呈下降趋势,不易保存,只能开瓶当日用完。 展开更多
关键词 临床化学 室内质控品 CV值 冰格保存
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一心一世界
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作者 ALISON 《汽车与驾驶维修(汽车版)》 2012年第2期154-155,共2页
smart,一个让您瞬间成为马路时尚达人的都市精灵,只要一出现就能hold住所有人的注意力!没错,smart虽然身材小,但却有着只属于自己的奇妙大世界。
关键词 冰格 产品介绍 设计方案 肩背包
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Development and Conservation of Glacier Tourist Resources——A Case Study of Bogda Glacier Park 被引量:10
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作者 LIU Xuling YANG Zhaoping XIE Ting 《Chinese Geographical Science》 SCIE CSCD 2006年第4期365-370,共6页
Glacier is one kind of the most beautiful geological sightseeing in the world as well as a special kind of tourism resources.The characters of glacier tourism include scarcity,frangibility,localization of tourist acti... Glacier is one kind of the most beautiful geological sightseeing in the world as well as a special kind of tourism resources.The characters of glacier tourism include scarcity,frangibility,localization of tourist activity,scien-tific connotation,and integrated function and value.The paper summarizes the latest researches in developing glacier tourism resources.Regarding the Bogda Glacier Park as an example,the authors analyze the characteristics of glacier tourism resources in detail and the conditions and potential threats of glacier tourism development.Suggestions on glacier tourism development and protection are given as follows:1) to plan function subarea scientifically and rea-sonably;2) to combine tourism,scientific research with ecological education;3) to take countermeasures of environ-mental protection;4) to integrate tourism resources and strengthening regional cooperation.Finally,emphases are put forward on resources conformity along the tourism line and cooperation of tourism management.The paper aims to seek after the coordination path in exploitation and protection of glacier tourism resources to guide the exploitation of other glacier tourism destinations. 展开更多
关键词 glacier park tourism development Bogda glacier tourism mountain glacier
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Unprecedented Retreat in a 50-Year Observational Record for Petermann Glacier, North Greenland 被引量:1
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作者 Ola M. JOHANNESSEN Mohamed BABIKER Martin W. MILES 《Atmospheric and Oceanic Science Letters》 CSCD 2013年第5期259-265,共7页
Petermann Glacier is a marine-terminating outlet glacier that had a 70 km-long floating ice tongue prior to a ~ 270 km2 calving event that was observed from satellite sensors in August 2010,shortening the ice tongue ... Petermann Glacier is a marine-terminating outlet glacier that had a 70 km-long floating ice tongue prior to a ~ 270 km2 calving event that was observed from satellite sensors in August 2010,shortening the ice tongue by ~ 27 km.Further,in July 2012,another 10 km was lost through calving.In order to understand these events in perspective,here the authors perform a long-term data analysis of Petermann Glacier calving-front variability and ice velocity for each year in the 1990s-2000s,supplemented by available observations from the previous three decades.Five major (on the order of 100 krm2) calving events are identified,with ~ 153 km2 calved from 1959 to 1961,~ 168 km2 in 1991,~ 71 km2 in 2001,~ 270 km2 in 2010,and ~ 130 km2 in 2012-as well as ~ 31 k m2 calved in 2008.The increased frequency of major calving events in recent years has left the front terminus position retreated nearly 25 km beyond the range of observed in previous decades.In contrast,stable ice-dynamics are suggested from ice-velocity measurements made each year between 1993-2012,which are on average 1063 m yr-1,with limited interannual variability and no significant trend; moreover,there is no apparent relationship between ice-velocity variability and calving events.The degree to which the massive calving events in 2010 and 2012 represent natural episodic variability or a response to atmospheric and/or oceanic changes remains speculative; however,melt-induced weakening of the floating ice tongue in recent years is strongly suggested. 展开更多
关键词 GREENLAND outlet glaciers iceberg calving satellite remote sensing
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Greenland Ice Sheet Elevation Change in Winter and Influence of Atmospheric Teleconnections in the Northern Hemisphere 被引量:1
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作者 CHEN Lin-Ling Ola M. JOHANNESSEN +1 位作者 Kirill KHVOROSTOVSKY WANG Hui-Jun 《Atmospheric and Oceanic Science Letters》 2009年第6期376-380,共5页
The relationship between the variability of the surface elevation of the Greenland Ice Sheet (GIS) in winter and sea level pressure is identified through analysis of data from satellite-borne radar altimeters, togethe... The relationship between the variability of the surface elevation of the Greenland Ice Sheet (GIS) in winter and sea level pressure is identified through analysis of data from satellite-borne radar altimeters, together with meteorological data fields during 1993 2005. We found that both the North Pacific Oscillation (NPO) and the North Atlantic Oscillation (NAO), the two major teleconnection patterns of the atmospheric surface pressure fields in the Northern Hemisphere, significantly influence the GIS winter elevation change. Further, it is suggested that the NPO may affect the GIS accumulation by influencing the NAO, particularly by changing the intensity and location of the Icelandic Low. 展开更多
关键词 Greenland ice sheet North Pacific Oscillation North Atlantic Oscillation atmospheric teleconnection patterns
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Relationship between flow speed variability of three tidewater glaciers and surface melt intensity in Greenland between 1979 and 2006
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作者 杨磊 王东晓 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2013年第1期202-209,共8页
The margin of the Greenland ice sheet has undergone rapid changes over the past decade as a result of the thinning, acceleration, and retreat of many fast-flowing tidewater outlet glaciers. Satellite observations show... The margin of the Greenland ice sheet has undergone rapid changes over the past decade as a result of the thinning, acceleration, and retreat of many fast-flowing tidewater outlet glaciers. Satellite observations show that three major tidewater outlet glaciers in Greenland retreated between 2000 and 2005, with synchronous increases in flow speed, causing a deficit in ice sheet mass budget and the potential for sea level rise. In this study, we investigated whether this acceleration was related to surface melt processes, and found that both flow speed and positive degree day (PDD) anomalies of the three glaciers varied together, indicating a causal relationship. Jakobshavn Isbr^e had lower flow speeds before 2000, during which PDD anomalies were negative, except for modest warming in 1993 and 1995. From 1999-2000, during which it is thought a threshold was passed, the flow speed of the glacier started to increase. However, the two glaciers in east Greenland showed a delayed response. Abrupt warming occurred in the vicinity of the two glaciers around 2001, but flow speed did not increase until 2003 for the Helheim Glacier, and until 2004 for the Kangerdlugssuaq Glacier. Furthermore, the two eastern glaciers switched to a deceleration mode more quickly than Jakobshavn lsbr^e. The observed differences in both acceleration and deceleration among the glaciers suggest that the relationship between surface melt and outlet glacier dynamics is not simple but complex. 展开更多
关键词 tidewater glaciers ice sheet surface melt intensity polar meteorology climate warming
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Spatial distribution of Ice Shelf Water in front of the Amery Ice Shelf,Antarctica in summer 被引量:5
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作者 郑少军 史久新 +1 位作者 矫玉田 葛人峰 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第6期1325-1338,共14页
As a unique low-temperature water mass in Antarctic coastal region, the Ice Shelf Water (ISW) is an important component for the formation of the Antarctic Bottom Water (AABW). In this paper, we present a criterion for... As a unique low-temperature water mass in Antarctic coastal region, the Ice Shelf Water (ISW) is an important component for the formation of the Antarctic Bottom Water (AABW). In this paper, we present a criterion for ISW identification based on freezing point at the sea surface, and we study spatial distribution of ISW in front of the Amery Ice Shelf (AIS) and its flow path in Prydz Bay by analyzing hydrographic data from Australian cruises in 2001 and 2002, as well as Chinese cruises in 2003, 2005, 2006, and 2008, all being made in the austral summer. The relatively cold and fresh ISW occurred as several discrete water blocks with cold cores in front of the AIS, within the depth range of 100?600 m, under the seasonal thermocline. ISW had obvious temporal and spatial variations and the spatial distribution pattern changed greatly after 2005. Most of ISW was concentrated west of 73°E during 2001 to 2003 and 2006, but it was widespread to east in 2005 and 2008. In all observation years, a small amount of cold ISW always occurs at the west end of the AIS front section, where the coldest ISW in the whole section also occurred in 2001, 2003 and 2006. Considering general cyclonic circulation pattern under the AIS, the ISW flowing out from west end of the AIS front might have experienced the longest cooling period under ice shelf, so it would have the lowest temperature. Analysis of data from meridian sections in Prydz Bay in 2003 implied that ISW in the west could spread north to the continental break along the east flank of the Fram Bank near 70.5°E, mix with the upwelling Circumpolar Deep Water and possibly contribute to the formation of AABW. 展开更多
关键词 Ice Shelf Water TEMPERATURE Amery Ice Shelf ANTARCTICA
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Detection and Monitoring of New-Ice in the East Greenland Sea Using the SeaWinds Scatterometer
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作者 Robert Ezraty 《Journal of Ocean University of Qingdao》 2002年第2期109-118,共10页
Space borne radar scatterometers are primarily designed to measure the wind vector over the world ocean; yet they also provide useful information on sea ice type and extent. In this paper, it is shown how the SeaWinds... Space borne radar scatterometers are primarily designed to measure the wind vector over the world ocean; yet they also provide useful information on sea ice type and extent. In this paper, it is shown how the SeaWinds scatterometer can be used to detect new sea ice at the very beginning of its growth. Taking advantage of the very good coverage of the East Greenland Sea by SeaWinds on board the QuikSCAT satellite it has been possible to detect the early stage of formation of the sea ice peninsula, named the Odden, and to monitor its evolution during March 2001. The early sea ice detection has been validated by using RADARSAT Synthetic Aperture Radar scenes. It is also shown that microwave radiometers, such as the Special Sensor Microwave Imager (SSM/I), which are used as standard sensors for sea ice monitoring, do not detect the very early stage of sea ice growth and lag behind new sea ice occurrence by about twelve to twenty four hours. 展开更多
关键词 sea ice East Greenland Sea Odden SCATTEROMETER
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The Glacier Area Changes in the Qangtang Plateau Based on the Multi-temporal Grid Method and its Sensitivity to Climate Change 被引量:5
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作者 WANG Liping XIE Zichu +3 位作者 WANG Xin LIU Shiyin DING Liangfu SHANGGUAN Donghui 《Journal of Mountain Science》 SCIE CSCD 2011年第6期882-893,共12页
Glacier area changes in the Qangtang Plateau are analyzed during 1970-2000 using air photos,relevant photogrammetric maps and satellite images based on the multi-temporal grid method.The results indicate that the melt... Glacier area changes in the Qangtang Plateau are analyzed during 1970-2000 using air photos,relevant photogrammetric maps and satellite images based on the multi-temporal grid method.The results indicate that the melting of glaciers accelerated,only a few of glaciers in an advancing state during 1970-2000 in the whole Qangtang Plateau.However,the glaciers seemed still more stable in the study area than in most areas of western China.We estimate that glacier retreat was likely due to air temperature warming during 1970-2000 in the Qangtang Plateau.Furthermore,the functional model of glacier system is applied to study climate sensitivity of glacier area changes,which indicates that glacier lifespan mainly depends on the heating rate,secondly the precipitation,and precipitation increasing can slow down glacier retreat and make glacier lifespan prolonged. 展开更多
关键词 The Qangtang Plateau Glacier change MULTI-TEMPORAL Climate change Functional model ofglacier system Simulation
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Spike in phytoplankton biomass in Greenland Sea during 2009 and the correlations among chlorophyll-a,aerosol optical depth and ice cover 被引量:3
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作者 瞿波 Albert J. GABRIC +1 位作者 路海浪 林道荣 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2014年第2期241-254,共14页
The distributions and correlations of chlorophyll-a(Chl-a),aerosol optical depth(AOD)and ice cover in the southeast Arctic Ocean-Greenland Sea(10°W–10°E,70°–80°N)between 2003 and 2009 were studie... The distributions and correlations of chlorophyll-a(Chl-a),aerosol optical depth(AOD)and ice cover in the southeast Arctic Ocean-Greenland Sea(10°W–10°E,70°–80°N)between 2003 and 2009 were studied using satellite data and statistical analyses.Regression analysis showed correlations between Chl-a and AOD,Chl-a and ice cover,and AOD and ice cover with different time lags.The time lag of Chl-a and AOD indicated their long-term equilibrium relationship.Peaks in AOD and Chl-a and generally occurred in May and July,respectively.Despite the time lag,the correlation between Chl-a and AOD in the study region was as high as 0.7.The peak gap between Chl-a and AOD shifted for about 6 weeks during 2003–2009.In the summer and autumn of 2009,Chl-a and AOD levels were much higher than during the other years,especially in the northern band of the study region(75°–80°N).The driving forces for this localized increase in phytoplankton biomass could be mainly attributed to the very high rate of ice melting in spring and early summer and the high wind speed in autumn,together with the increased deposition of aerosol throughout the year.The unusually high AOD in the spring of 2003 was mainly due to a massive fi re in Russia,which occurred in the fi rst half of the year.Over the 7 years of the study,the sea surface temperature generally decreased.This may have been due to the release of dimethylsulfi de into the air,excreted in large amounts from abundant phytoplankton biomass,and its subsequent reaction,form large amounts of aerosol,and resulting in regional cooling. 展开更多
关键词 phytoplankton biomass aerosol optical depth (AOD) ice cover wind speed Arctic Ocean
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Preliminary Results on Hydrological and Hydrochemical Features of Kartamak Glacier Area in Mt. Muztag Ata 被引量:5
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作者 ZHAO Huabiao YAO Tandong XU Baiqing 《Journal of Mountain Science》 SCIE CSCD 2007年第1期77-85,共9页
The variations of the meltwater runoff draining from Kartamak Glacier in Mt. Muztag Ata in China were studied by using the measured hydrological data from 1 June to 25 August 2003. The meltwater runoff is mainly affec... The variations of the meltwater runoff draining from Kartamak Glacier in Mt. Muztag Ata in China were studied by using the measured hydrological data from 1 June to 25 August 2003. The meltwater runoff is mainly affected by ambient temperature and precipitation. Meltwater and precipitation samples were collected from 10 to 23 August 2003. Their pH, EC (electric conductivity) and the major ions (Na^+, K^+, Ca^(2+), Mg^(2+), Cl^-, NO_3^-, SO_~4^(2-)) were determined. pH values showed a positive correlation with EC values for all samples. Meltwater samples were slightly alkaline. Sulfate and calcium were the dominant anion and cation in the measured ions, respectively. All the ion concentrations had inverse relationships with runoff or water level. In order to discuss the origins of dissolved chemical substances in the glacial meltwater, a principal component analysis was carried out. The results showed that water-rock interaction determined the ion components of the meltwater. 展开更多
关键词 Muztag Ata Kartamak Glacier Meltwater runoff Hydrochemical characteristics
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Numerical simulation of icing effect and ice accretion on three-dimensional configurations 被引量:5
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作者 SANG WeiMin SHI Yu XI Chao 《Science China(Technological Sciences)》 SCIE EI CAS 2013年第9期2278-2288,共11页
It is common for an aircraft to encounter icing weather conditions, which would be dangerous to the flight. Thus, there is a need to study the detail of icing effect and the process of ice accretion on the aircraft. I... It is common for an aircraft to encounter icing weather conditions, which would be dangerous to the flight. Thus, there is a need to study the detail of icing effect and the process of ice accretion on the aircraft. In this paper, considering three different icing models according to weather conditions, i.e., sharp-angled ice, blunt-nosed ice and double horn ice, the Reynolds-averaged N-S equations and the S-A turbulence model are used to analyze the flow field for an iced wing/body configuration with a multi-block strategy and structured grid technique. The numerical result is compared with the experimental data. A flow solver is developed based on the Euler equations to investigate the ice accretion process. The droplets are tracked by using the Lagrangian method. In addition, a revised Messinger model is proposed to simulate the ice accretion. This numerical simulation is conducted for the ice accretion on an M6 wing and a wing/body/tail configuration. The presented results preliminarily show that the numerical methods are feasible and effective. 展开更多
关键词 aircraft icing N-S equations ice accretion icing effect Lagrangian method droplet equation
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Evolution of Landscape Pattern and Tourism Service Value in Zhangjiakou City
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作者 LI Ying DAI Yuexingtong +1 位作者 HAN Jingting ZOU Tongqian 《Journal of Resources and Ecology》 CSCD 2022年第6期1098-1108,共11页
Zhangjiakou is a northern Chinese city that hosted the Beijing 2022 Winter Olympic Games. As an important ice and snow tourist destination, it is essential to investigate Zhangjiakou’s rate of landscape pattern chang... Zhangjiakou is a northern Chinese city that hosted the Beijing 2022 Winter Olympic Games. As an important ice and snow tourist destination, it is essential to investigate Zhangjiakou’s rate of landscape pattern change,the landscape ecological security level, and ecosystem service value, particularly the tourism ecological service value during its construction. With land use data from 2000 to 2020, this study comprehensively analyzed the dynamic changes in Zhangjiakou, including land use dynamics, the land use transfer matrix, landscape vulnerability,landscape disturbance, ecosystem service value, tourism ecological service value, and other aspects. The results show that the landscape pattern in Zhangjiakou was greatly disturbed from 2015 to 2018, and the landscape ecological security was threatened in the process of landscape pattern adjustment. By 2020, after the landscape pattern was adjusted and stabilized, the landscape ecological security was restored, and the ecosystem service value was significantly improved, especially the tourism ecological service value. The results of this study will play an important role in promoting the optimization of Zhangjiakou’s ice and snow landscape pattern and the improvement of tourism ecological value. In addition, it provides important lessons for the development of other ice and snow tourist destinations. 展开更多
关键词 ice and snow tourist destination landscape pattern landscape ecological security tourism leisure value Zhangjiakou City
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