mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
Satellite Constellation Design with Adaptively Continuous Ant System Algorithm

The ant system algorithm (ASA) has proved to be a novel meta-heuristic algorithm to solve many multivariable problems. In this paper, the earth coverage of satellite constellation is analyzed and a (n + 1)-fold coverage rate is put forward to evaluate the coverage performance of a satellite constellation. An optimization model of constellation parameters is established on the basis of the coverage performance. As a newly developed method, ASA can be applied to optimize the constellation parameters. In order to improve the ASA,a rule for adaptive number of ants is proposed, by which the search range is obviously enlarged and the convergence speed increased.Simulation results have shown that the ASA is more quick and efficient than other methods.
艾迪联合放疗治疗老年晚期非小细胞肺癌的疗效分析

目的:观察艾迪注射液联合放疗治疗老年晚期非小细胞肺癌的近期疗效及毒副作用.方法:75例老年晚期非小细胞肺癌患者随机分成两组,对照组37例行单纯常规放疗,1.8～2CGy/次,5次/周,总剂量60Gy,6～7周完成;治疗组38例行常规放疗的同时加用艾迪注射液50ml加入生理盐水500ml静脉滴注,每日一次,连用30天.结果:治疗组疗效优于对照组,治疗组的生活质量改善也优于对照组;放射性肺炎和放射性食道炎发生率治疗组为28.94%(11/38),明显低于对照组70.27%(26/37),白细胞Ⅰ～Ⅱ度下降治疗组占21.05%(8/38),明显低于对照组67.56%(25/37).结论:艾迪注射液联合放疗治疗老年晚期非小细胞肺癌,可以提高疗效、改善生活质量及降低放疗毒副作用.
黄芪建中汤对脾虚型慢性萎缩性胃炎大鼠胃粘膜防护因子复健作用研究

目的:观察黄芪建中汤对慢性萎缩性胃炎(CAG)大鼠胃粘膜防护因子的影响,为其临床应用提供实验参考.方法:24只Wistar大鼠随机分为4组,①正常(C)对照组;②CAG组:6只大鼠以2%的水杨酸钠灌胃8w造成胃粘膜损伤,后4w结合饥饱失常、疲劳过度使大鼠致虚;③维酶素(V)组:6只已造模大鼠,使用维酶素治疗21d;④黄芪建中汤(RA)组:6只已造模大鼠,使用黄芪建中汤治疗21d.治疗结束后,对其胃粘膜血流量、SOD活性、MDA 、PGE2及iNOS-mRNA表达量进行检测.结果:与正常大鼠相比,CAG组大鼠胃粘膜血流量、SOD活性及PGE2显著降低,而MDA 含量和iNOS-mRNA表达量显著增高;经黄芪建中汤治疗21d后,上述指标明显改善并明显优于V组.结论:黄芪建中汤对CAG大鼠多种胃粘膜防护因子的损伤有良好的复健作用.
Numerical Weather Prediction in China in the New Century——Progress,Problems and Prospects

This paper summarizes the recent progress of numerical weather prediction(NWP)research since the last review Was published.The new generation NWP system named GRAPES (the Global and Regional Assimilation and Prediction System),which consists of variational or sequential data assimilation and nonhydrostatic prediction model with options of configuration for either global or regional domains,is briefly introduced,with stress on their scientific design and preliminary results during pre-operational implementation.In addition to the development of GRAPES.the achievements in new methodologies of data assimilation,new improvements of model physics such as parameterization of clouds and planetary boundary layer,mesoscale ensemble prediction system and numerical prediction of air quality are presented.The scientific issues which should be emphasized for the future are discussed finally.
Detection,Causes and Projection of Climate Change over China:An Overview of Recent Progress

This article summarizes the main results and findings of studies conducted by Chinese scientists in the past five years.It is shown that observed climate change in China bears a strong similarity with the global average.The country-averaged annual mean surface air temperature has increased by 1.1℃over the past 50 years and 0.5-0.8℃ over the past 100 years.slightly higher than the global temperature increase for the same periods.Northern China and winter have experienced the greatest increases in surface air temperature.Although no significant trend has been found in country-averaged annual precipitation, interdecadal variability and obvious trends on regional scales are detectable,with northwestern China and the mid and lower Yangtze River basin having undergone an obvious increase,and North China a severe drought.Some analyses show that frequency and magnitude of extreme weather and climate events have also undergone significant changes in the past 50 years or so.Studies of the causes of regional climate change through the use of climate models and consideration of various forcings,show that the warming of the last 50 years could possibly be attributed to an increased atmospheric concentration of greenhouse gases,while the temperature change of the first half of the 20th century may be due to solar activity,volcanic eruptions and sea surface temperature change.A significant decline in sunshine duration and solar radiation at the surface in eastern China has been attributed to the increased emission of pollutants.Projections of future climate by models of the NCC(National Climate Center,China Meteorological Administration)and the IAP(Institute of Atmospheric Physics,Chinese Academy of Sciences),as well as 40 modeis developed overseas,indicate a potential significant warming in China in the 21st century,with the largest warming set to occur in winter months and in northern China.Under varied emission scenarios,the country-averaged annual mean temperature is projected to increase by 1.5-2.1℃ by 2020,2.3-3.3℃ by 2050,and by 3.9-6.0℃ by 2100,in comparison to the 30-year average of 1961-1990.Most models project a 10%-12%increase in annual precipitation in China by 2100,with the trend being particularly evident in Northeast and Northwest China,but with parts of central China probably undergoing a drying trend.Large uncertainty exists in the projection of precipitation,and further studies are needed.Furthermore,anthropogenic climate change will probably lead to a weaker winter monsoon and a stronger summer monsoon in eastern Asia.
Recent Progress in Atmospheric Observation Research in China

Recent progress in atmospheric observation techniques,observational systems and their application in China are reviewed.According to different observational platforms,the review is presented in three sections,i.e.,satellite remote sensing(SRS),ground-based observation technologies and applications,and aircraft/balloon measurements.The section"satellite remote sensing"presents advances in SRS techniques,SRS of clouds and aerosols,and SRS of trace gases and temperature/moisture profiles.The section"groundbased observation technologies and applications"focuses on research such as lidar systems and applications,sun/sky radiometer and broadband radiation observations,weather radar and wind profilers,GPS measurements,and some new concept systems.The section"aircraft/balloon measurements"presents some newly developed aircraft-and balloon-based sounding techniques.
Progress in Predictability Studies in China(2003-2006)

Since the last International Union of Geodesy and Geophysics General Assembly(2003),predictability studies in China have made significant progress.For dynamic forecasts,two novel approaches of conditional nonlinear optimal perturbation and nonlinear local Lyapunov exponents were proposed to cope with the predictability problems of weather and climate,which are superior to the corresponding linear theory.A (ENSO)Was provided based on a theoretical model.To improve the forecast skill of an intermediate coupled ENSO model,a new initialization scheme was developed,and its applicability was illustrated by hindcast experiments.Using the reconstruction phase space theory and the spatio-temporal series predictive method,Chinese scientists also proposed a new approach to improve dynamical extended range(monthly) prediction and successfully applied it to the monthly-scale predictability of short-term climate variations.In statistical forecasts,it Was found that the effects of sea surface temperature on precipitation in China have obvious spatial and temporal distribution features,and that summer precipitation patterns over east China are closely related to the northern atmospheric circulation.For ensemble forecasts,a new initial perturbation method was used to forecast heavy rain in Guangdong and Fujian Provinces on 8 June 1998.Additionally,the ensemble forecast approach was also used for the prediction of a tropical typhoons.A new dowuscaling model consisting of dynamical and statistical methods was provided to improve the prediction of the monthly mean precipitation.This new downscaling model showed a relatively higher score than the issued operational forecast.
An Improved Velocity Volume Processing Method

Velocity volume processing (VVP) retrieval of single Doppler radar is an effective method which can be used to obtain many wind parameters. However, due to the problem of an ill-conditioned matrix arising from the coefficients of equations not being easily resolved, the VVP method has not been applied adequately and effectively in operation. In this paper, an improved scheme, SVVP (step velocity volume processing), based on the original method, is proposed. The improved algorithm retrieves each group of components of the wind field through a stepwise procedure, which overcomes the problem of an ill-conditioned matrix, which currently limits the application of the VVP method. Variables in a six-parameter model can be retrieved even if the analysis volume is very small. In addition, the source and order of errors which exist in the traditional method are analyzed. The improved method is applied to real cases, which show that it is robust and has the capability to obtain the wind field structure of the local convective system. It is very helpful for studying severe storms.
Measurements of Nighttime Nitrate Radical Concentrations in the Atmosphere by Long-Path Differential Optical Absorption Spectroscopy

The long-path differential optical absorption spectroscopy (LP-DOAS) technique was developed to measure nighttime atmospheric nitrate radical (NO_3) concentrations. An optimized retrieval method, resulting in a small residual structure and low detection limits, was developed to retrieve NOs. The time series of the NO_3 concentration were collected from 17 to 24 March, 2006, where a nighttime average value of 15.8 ppt was observed. The interfering factors and errors are also discussed. These results indicate that the DOAS technique provides an essential tool for the quantification of NO_3 concentration and in the study of its effects upon nighttime chemistry.
Impacts of the Thermal Effects of Sub-grid Orography on the Heavy Rainfall Events Along the Yangtze River Valley in 1991

A P - σ regional climate model using a parameterization scheme to account for the thermal effects of the sub-grid scale orography was used to simulate the three heavy rainfall events that occurred within the Yangtze River Valley during the mei-yu period of 1991. The simulation results showed that by considering the sub-grid scale topography scheme, one can significantly improve the performance of the model for simulating the rainfall distribution and intensity during these three heavy rainfall events, most especially the second and third. It was also discovered that the rainfall was mainly due to convective precipitation. The comparison between experiments, either with and without the sub-grid scale topography scheme, showed that the model using the scheme reproduced the convergence intensity and distribution at the 850 hPa level and the ascending motion and moisture convergence center located at 500 hPa over the Yangtze River valley.However, some deviations still exist in the simulation of the atmospheric moisture content, the convergence distribution and the moisture transportation route, which mainly result in lower simulated precipitation levels. Further analysis of the simulation results demonstrated that the sub-grid topography scheme modified the distribution of the surface energy budget components, especially at the south and southwest edges of the Tibetan Plateau, leading to the development and eastward propagation of the negative geopotential height difference and positive temperature-lapse rate difference at 700 hPa, which possibly led to an improved precipitation simulation over eastern China.
Bohr's Inequality on the Unit Ball Bn

Bohr's type inequalities are studied in this paper: if / is a holomorphic mapping from the unit ball Bn to B", /(O) = p, then we have ∞∑_k=0|Dψp(P)[Dkf(0)(zk)]|k!||Dψ_p(p)||＜1 for |z|＜ max{1/2+|p|,(1-|p|/2)~(1/2)} and ψ_p ∈ Aut(Bn) such that ψ_p (p) = 0. As corollaries of theabove estimate, we obtain some sharp Bohr's type modulus inequalities. In particular, whenn=1 and |P| →1, then our theorem reduces to a classical result of Bohr.
老年肝门部胆管癌24例外科诊治分析

目的 总结老年肝门部胆管癌的外科诊治经验.方法 回顾性分析我院1999～2004年收治的24例老年肝门部胆管癌的临床资料和随访.结果 24例中手术切除15例,切除率为62.5%(15/24),其中根治性切除6例、姑息性切除9例.体内引流3例、体外引流4例、探查手术2例.术后并发症7例、1例死于肝肾功能衰竭.根治性切除1、2、3年生存率分别为83.3% 、50.0%、16.6%;姑息性切除1、2年生存率分别为37.5%、12.5%;非切除引流者1年生存率为16.6%;探查性手术者生存期均＜3个月.结论 根治性切除优于姑息性切除,非根治性切除优于引流和探查.术前正确评价病情、术中选择适宜术式、术后并发症的合理治疗是提高疗效的关键.
坎地沙坦与低分子肝素联合治疗老年肺心病心衰的临床研究

目的 研究坎地沙坦与低分子肝素联合治疗对老年肺心病心衰患者的治疗作用.方法 将80例肺心病心衰患者随机分为两组.对照组(n=38)给予肺心病心衰常规治疗,观察组(n=42)给予常规治疗基础上加用低分子肝素及坎地沙坦酯片治疗2 w,然后停用低分子肝素,继续用坎地沙坦酯片4 w(共用6 w).于治疗前、治疗后2 w及6 w分别测定动脉血氧分压及二氧化碳分压、右室流出道内径、右心室内径、右心肺动脉内径、左心室射血分数、左室舒张末期内径及血流变学主要指标的变化,并观察临床疗效.结果 观察组总有效率明显高于对照组(P＜0.05),低分子肝素与坎地沙坦联合治疗2 w及6 w后,动脉血氧分压、动脉血二氧化碳分压在治疗以后均明显改善;右室流出道内径、右心室内径、右心肺动脉内径、左室舒张末期内径明显缩小(P＜0.05),治疗6 w后这种差异更为显著(P＜0.01).血流变学主要指标显著改善,尤其在治疗2 w时这种差异更为显著.结论 在常规治疗的基础上加用坎地沙坦与低分子肝素可以更好地改善老年肺心病心衰患者的心功能和临床症状,亦能明显改善肺血管及右心室重构,降低肺动脉压.
单晶铜线材在冷拉拔变形过程中的组织演化

采用光学金相、电子背散射衍射和透射电子显微镜对单晶铜线材拉拔变形的组织演化进行了分析. 发现单晶铜线材除了有少量的晶界之外, 还有枝晶和少量生长孪晶, 但凝固过程中所产生的枝晶在变形组织中却很难观察到. 在室温下拉拔变形过程中, 单晶铜线材的组织演化可分为 3 个阶段, 当真应变小于0.94时, 宏观尺度上晶粒没有发生明显的分裂, 从微观尺度上讲, 组织的演化为位错胞形成以及沿拉丝方向拉长的变形阶段; 真应变为0.94～1.96时, 宏观上出现晶粒分裂, 微观上胞块和沿{111}的MBs开始增多; 真应变大于1.96时, 宏观上晶粒分裂加剧, 形成纤维状组织, 微观上出现剪切变形的S带. 随变形量的增加, 由晶粒竞争生长形成的<100>丝织构转变为<100>, <111>以及比较弱的<112>丝织构, 剪切变形是织构组分转变的原因. 变形形成的界面, 其角度随变形量增加而增大. 真应变为0.94时, 界面属于小角度界面; 真应变为1.96时, 界面角度超过50°, 并在25°～30°高角度范围出现了由织构演化所形成的第2个峰.
温度影响下煤层顶板砂岩的破坏机制及塑性特性

通过扫描电镜(SEM)研究了煤层顶板砂岩拉伸断裂后的断口形貌图, 结合砂岩破坏的表面形貌图, 在细观和微观层次对砂岩的断裂机制进行了研究; 比较了受不同温度影响后的微观断口形貌差异, 特别是高温疲劳断口的出现, 证实了温度对砂岩破坏的微观断裂机制产生了影响, 即随着温度的升高, 砂岩的断裂机制由以局部脆性断裂机制为主向局部脆性和延性耦合断裂机制转变, 并观察到大量的塑性变形, 这是影响砂岩强度变化的根本原因, 并可能是微褶皱.
基于MODIS晴空数据的森林日净第一性生产力估算

基于光能利用率模型提出了一个基于MODIS数据参数反演的日净第一性生产力估算模型.其中包括基于植被冠层叶面积指数和地表反照率的光合有效辐射比例能量平衡模型, 基于大气气溶胶光学厚度、水汽含量和Bird模型相结合的光合有效辐射计算模型.日净第一性生产力模型所需的主要参数从MODIS数据反演获得.为了验证净第一性生产力结果的估算精度, 用中国生态系统研究网络2003和2004年千烟洲和长白山观测站点的日净第一性生产力观测数据和模型估算结果对比, 结果表明两者具有较好的一致性.同时也将同期NASA的净第一性生产力产品加以对比, 结果表明千烟洲站点上2004年的NASA产品低估了净第一性生产力值, 但长白山站则高估了净第一性生产力结果.
平流层准两年变化对南海夏季风影响机制的探讨

利用美国大气研究中心(the National Center for Atmospheric Research, NCAR)的中层大气模式模拟了平流层准两年振荡(Quasi-Biennial Oscillation, QBO)过程对对流层顶和对流层上层的影响, 并结合NCEP(the National Centers for Environmental Prediction)/NCAR、欧洲中期天气预报中心(European Centre for Medium-Range Weather Forecasts, ECMWF)月平均的风场资料和实际的探空观测资料, 分析了平流层QBO对南海夏季风的影响作用.结果表明: 平流层QBO会引起平流层的异常经向环流并向下传播, 在QBO位相的中后期和位相转换期影响到对流层顶和对流层上层, 使热带和低纬度的对流层上层形成异常的经向气压梯度, 最终在夏季的对流层热带地区激发出不同类型的异常环流-西风位相时, 激发出与南海夏季风环流相反的异常环流, 在南海地区有显著的异常下沉运动, 对南海夏季风有削弱作用; 东风位相时, 激发出反Hadley环流型的异常环流, 在南海地区有明显的异常上升气流, 对南海夏季风有加强的效果.虽然QBO对南海夏季风经向环流有影响, 但它并不是决定南海夏季风准两年变化的唯一因子.
气候变化和人类活动对黄土高原植被覆盖变化的影响

利用GIMMS和SPOT VGT两种归一化植被指数(NDVI)数据对黄土高原地区1981～2006年期间植被覆盖的时空变化进行了研究, 并从气候变化和人类活动的角度分析了植被覆盖变化的原因.黄土高原地区植被覆盖经历了以下4个阶段: ① 1981～1989年植被覆盖持续增加时期; ② 1990～1998年以小幅波动为特征的相对稳定时期; ③ 1999～2001年植被覆盖迅速下降时期; ④ 2002～2006年植被覆盖进入迅速上升时期.黄土高原地区植被覆盖变化存在显著的空间差异, 内蒙古和宁夏沿黄农业灌溉区和鄂尔多斯退耕还林还草生态恢复区的植被覆盖明显提高, 而黄土丘陵沟壑区和六盘山、秦岭北坡等山地森林区的植被覆盖明显退化.从不同的植被类型来看, 沙地、草地和耕地的NDVI上升趋势显著, 而森林植被的NDVI呈明显的下降趋势.研究表明: 植被覆盖变化是气候变化和人类活动共同作用的结果.黄土高原地区气候变暖在加剧土壤干燥化抑制夏季植被生长的同时, 提高了春、秋季节植被生长活性, 延长了植被生长期.黄土高原地区植被覆盖和降水关系密切, 降水变化是植被覆盖变化的重要原因.农业生产水平的提高致使农业区NDVI在不断上升, 同时, 正在黄土高原大规模进行的退耕还林还草工程建设, 其生态效应也正在呈现.
中国东部新生代玄武岩高Fe/Mn比值的成因意义

中国东部新生代玄武岩普遍具有的高Fe/Mn比值(平均 = 68.6 ± 11.5)与OIB型微量元素特征暗示高Fe/Mn比值与OIB型特征之间具有耦合关系.尽管单斜辉石分离结晶作用会引起玄武岩Fe/Mn比值增加, 但对华北克拉通北缘的汉诺坝和南缘安徽境内新生代玄武岩的详细研究, 发现这些玄武岩的高Fe/Mn比值无法单独用单斜辉石分离结晶作用解释, 而必须存在高Fe/Mn比值原始岩浆.橄榄岩和辉石岩部分熔融实验研究和模拟计算结果表明, 高Fe/Mn比值与OIB型特征之间的耦合关系应反映了地幔源区中存在的辉石岩组分, 而不必求助于核-幔作用或高度亏损岩石圈地幔的再熔融作用.结合中国东部的岩石圈演化历史和新生代玄武岩Sr-Nd-Pb同位素组成, 新生代玄武岩的高Fe/Mn比值和OIB型微量元素组成之间的耦合特征应是中国东部岩石圈演化过程中广泛的岩石圈物质再循环作用的记录.
多变量线性回归的平均值概念及其在地学研究中的应用

文章以实例阐述了多变量一元线性回归计算中的"平均值概念". 作者根据"平均值概念", 利用珊瑚δ18O比值重建了最近90年西沙表层海水盐度的变化历史,并运用洛川黄土10Be记录示踪了最近80 ka全球性的古地磁漂移事件, 从而阐明了"平均值概念"在地学数据分析中的重要意义及应用前景.
准噶尔盆地示踪石油运移的无机地球化学新指标研究

迁以准噶尔盆地为例, 探索了石油运移示踪研究的新思路和新方法. 基于对储层中典型流体-岩石反应产物(方解石胶结物)的元素地球化学分析, 结合样品的地质产状, 提出方解石胶结物的MnO含量是示踪含油气流体活动的良好指标. Mn是典型与火山物质相关的元素, 胶结物中富集的Mn主要来自于油源流体对本区烃源层系中火山岩物质的溶蚀. 同一世代方解石胶结物中MnO含量降低的方向指示石油运移方向. 据此, 结合石油运移过程中的有机地球化学分析, 研究了多源充注地区的石油运移通道和方向, 取得良好效果.
近10 a中国对流层NO_2的变化趋势、时空分布特征及其来源解析

利用卫星遥感资料, 分析了1997～2006年中国对流层NO2的变化趋势和时空分布特征以及来源解析. 研究发现中国近10 a来对流层NO2垂直柱密度具有明显的增长趋势. 东部地区近10 a的NO2垂直柱密度平均值(9.3×1015 molec/cm2)是西部地区(0.6×1015 molec/cm2)的15倍, NO2污染最严重的地区主要集中在京津冀、长江三角洲、珠江三角洲以及四川盆地等人口聚居和工业发达的地区, 与人口的分布有密切的关系. 由于气象因素、人居和自然环境等因素的差异, 东部和西部地区对流层NO2浓度季节变化具有明显不同的特征, 东部地区在冬季浓度最高, 而西部地区在夏季达到极大值. 还分析了几个典型的超大城市对流层NO2垂直柱密度变化趋势, 上海以每年～20%的增长速率呈线性上升趋势, 增长率最高. 卫星遥感同地面实测资料的比较和验证表明, 大城市对流层NO2垂直柱密度与近地面的NO2浓度呈现一致的变化趋势, 且与机动车保有量的变化有显著的相关性, 表明剧烈的人为工业和经济活动对对流层NO2的来源有重要的贡献.
New ent-Isopimarane Diterpene from Mangrove Excoecaria agallocha L.

A new ent-isopimarane diterpenoid, Agallochaone A(1), together with the known 8,13-epoxy-14-labden-3-one(2) and Excoecarin B(3) were isolated from the whole plant of mangrove Excoecaria agallocha L. and identified on the basis of a detailed spectral analysis, including 2D NMR spectrometry and HRESI-MS.
GROWTH AND MORPHOLOGY OF POLYMER-ACTIN COMPLEXES

F-actins are semi-flexible polyelectrolytes and can be assembled into large polymer-actin complex with polymorphism through electrostatic interaction with polycations. This study investigates the structural phase behavior and the growth of polymer-actin complexes in terms of its longitudinal and lateral sizes. Our results show that formation of polymer-actin complexes is cooperative, and morphology and growth of polymer-actin complexes depend on polycation species and concentrations of polycation and salt in a constant actin concentration. We found that the longitudinal growth and lateral growth of polymer-actin complexes are dominated by different factors. This induces the structural polymorphism of polymer-actin complexes. Major factors to influence the polymorphism of polymer-actin complexes in polyelectrolyte system have been discussed. Our results indicate that the semi-flexible polyelectrolyte nature of F-actins is important for controlling the morphology and growth of actin architectures in cell.
STUDIES ON STRUCTURE AND PHASE BEHAVIOR OF MULTICOMPONENT POLYMERS THROUGH RHEOLOGICAL TESTS

Rheological measurement has been a preferred approach to the characterization of the structure and phase behaviors for multi-component multi-phase polymer systems, due to its sensitive response to the changes of structure for these heterogeneous polymers. In the present article, recent progresses in the studies on rheology for heterogeneous polymer systems including phase-separated polymeric blends and block copolymers are reviewed, mainly depending on the results by the authors' research group. By means of rheological measurements, not only some new fingerprints responsible for the evolution of morphology and structure concerning these polymer systems arc obtained, also the corresponding results are significant for design and preparation of novel polymeric structural materials and functional materials.
关于"改进的桩土界面荷载传递双曲线模型及其在单桩负摩阻力时间效应研究中的应用"的讨论

笔者近日有幸拜读了发表于《岩土工程学报》2007年第6期的"改进的桩土界面荷载传递双曲线模型及其在单桩负摩阻力时间效应研究中的应用"[1]一文.笔者意欲在以下几点向原文作者请教和商讨.
利用病区一览表多种色彩显示不同信息

病区一览表作为病区护士站标示住院病人疾病诊断的浏览牌,其部分信息功能随电脑办公的普及正被逐渐弱化.但是有些信息,如身份类别、费用类别等则要求标示更加细化.目前,一些医院采用剪制各色条状标记插入一览表标志卡上以示区别的方法,这又带来了一览表整体凌乱和使用不便的问题.
院前急救人员心理健康状况的研究现状

院前急救是指对遭受各种危及生命的急症、创伤、中毒、灾难事故的患者的医院前期救护,包括现场紧急处理和转运途中监护.快速而有效的院前急救工作,对挽救患者生命、减少医院前期患者的伤残率和死亡率至关重要[1].
注意缺陷多动障碍儿童对图画的视知觉加工特点

目的 通过比较注意力缺陷多动障碍(ADHD)儿童与正常儿童观察主题图画时眼球运动特点的异同,探究ADHD儿童的视知觉加工特点.方法应用EYELINK眼动记录仪对20例ADHD儿童及与之按年龄、性别配对的20名正常儿童以主题图画为视靶,进行眼球运动轨迹检查.比较两组儿童眼球注视点、眼球平均注视时间、眼跳数目以及平均眼跳幅度.结果 ADHD儿童在第一幅图画中的注视点数目低于正常儿童(P＜0.05),但平均注视时间和眼跳数目差异元显著性(P＞0.05).ADHD组在其他两幅图画的眼动测试参数如注视点数目、平均注视时间、眼跳数目以及平均眼跳幅度几乎都与对照组差异存在显著性(P＜0.05).同时,注视敏感区域和扫描轨迹也和对照组不同.结论 ADHD儿童可能存在视觉认知功能方面的缺陷,ADHD儿童信息加工的整体水平低于正常儿童.他们可能在处理复杂信息方面的能力要低于正常儿童,而对干扰信息不多的简单图形的识别和理解可能与正常儿童无异.
广西壮族自治区眼科现状调查与分析

目的 全面掌握目前广西县级及县级以上眼科医疗机构、人力、服务能力等情况.方法 以信函方式由广西卫生厅发放卫生部医政司与全国防盲办统一编制的《眼科现状调查表》到各地区所有县及县级以上综合医院,调查2003年度上述情况,应用EXCEL对其函调结果进行汇总及分析.结果 除百色市及其附属县未寄回函,无统计数据外,有63所县级以上综合医院及83所县级医院寄回有效调查表.2003年我区眼科医疗机构共有146家,眼科卫技人员2 473人;全区平均每46 995人口中拥有1名眼科医师;医师职称高、中、初级比例是1.0:2.1:1.9,眼科医护比为1.0:0.8;75.38%和99.48%的高级职称眼科医师和护士集中在城市;全年完成白内障复明手术16 919例.结论 我区眼科机构、人力、服务能力等现状基本与2000年全国平均水平相当,但是仍存在眼科医疗机构分布不合理、人力资源分布不均衡的情况,是制约我区防盲治盲工作深入开展的主要原因.
整体厨柜的标准化(6)

与其他家具产品相比,整体厨柜本身并不是一个直接可以销售和使用的标准化工业产品,每套厨柜都是一个规模不大,但专业性比较强的工程项目,厨柜企业向消费者的供货过程包括测量、设计、制造、安装、服务等环节,缺一不可.
热诚祝贺刘东生院士九十华诞——六十年相交与钦敬

1从初识到建立中国第四纪研究委员会　欣逢我国第四纪科学成就最大者、楷模、长者和老友刘东生院士九十华诞,敬致最热忱的祝贺.回忆1946年冬在长江三峡东口江边与东生同志初次相识,他正随同侯德封先生勘查三峡大坝工程地质,我是在做大坝水库淹没损失调查,沿江步行去宜昌.
华南五峰组-龙马溪组黑色岩系时空展布的主控因素及其启示

在回顾五峰组-龙马溪组两个地层单位沿革并重申其定义与划分基础上,重建了华南五峰组-龙马溪组及其相关地层序列的区域地层框架.根据这一框架中奥陶-志留纪黑色笔石岩系的穿时性、以及相关地层序列纵向演化特征与岩石圈板块挠曲模式的联系,结合所发现钾质斑脱岩源岩的板块汇聚背景,以及该阶段海平面升降与黑色岩系对应关系,提出控制该阶段华南黑色岩系的时空展布格局的主要因素有两个,即该阶段自南东向北西的华夏地块与扬子地块幕式汇聚过程所产生的岩石圈板块挠曲-周缘前陆盆地的同向迁移,以及该阶段两次全球性的三级海平面变化快速上升阶段所导致的缺氧及欠补偿水体.本文认为,要在华南奥陶-志留纪(包括其他断代)寻找其他可能的烃源岩层位,可能要首先考虑类似背景下这两种因素综合作用所导致的快速沉降及深水缺氧的沉积环境.
吸附-微生物脱硫原位耦合工艺的吸附剂选择

吸附-生物原位耦合脱硫工艺是耦合了吸附脱硫的速率快和生物脱硫的选择性高的优点的新型油品脱硫工艺. 该耦合工艺通过在脱硫微生物表面组装脱硫吸附剂来实现. 比较了常用脱硫吸附剂γ-Al_2O_3、Na-Y分子筛和活性炭在与德氏假单胞杆菌R-8进行吸附-微生物催化原位耦合脱硫工艺中的应用效果. 其中, Na-Y分子筛抑制细胞的脱硫活性, 活性炭吸附了底物二苯并噻吩(DBT)之后难以解吸, 因此, 二者均不适用于耦合脱硫工艺. γ-Al_2O_3由于能够快速地从油相中吸附DBT, 然后将DBT解吸下来传递给R-8细菌进行生物降解, 加快了DBT的传质速率, 从而有效地提高了脱硫速率. 研究还发现纳米结构的γ-Al_2O_3与R-8耦合脱硫的效果优于普通尺寸的γ-Al_2O_3, 所以认为纳米γ-Al_2O_3是原位耦合脱硫较好的吸附剂选择.
Coulomb Interaction in Quantum Dot with a Precessing Magnetic Field

We study electronic transport through a quantum dot (QD) with a precessing magnetic field. By using the Keldysh nonequilibrium Green function method, formulas of local density of states (LDOS) and conductance of QD are derived self-consistently. It shows that the LDOS and conductance have obvious changes with the Coulomb blockade interaction. The intensity and angle of the magnetic field or temperatures, which reflect the mesoscopic structure of the QD are derived. The superiority of this device is that the QD can be controlled easily by the magnetic field, so it is valuable to apply in generating, manipulating and probing spin state.
Three New Integrable Hierarchies of Equations

A general Lie algebra V_s and the corresponding loop algebra ~～V_s are constructed, from which the linear isospectral Lax pairs are established, whose compatibility presents the zero curvature equation. As its application, a new Lax integrable hierarchy containing two parameters is worked out. It is not Liouville-integrable, however, its two reduced systems are Liouville-integrable, whose Hamiltonian structures are derived by making use of the quadratic-form identity and the γ formula (i.e. the computational formula on the constant γ appeared in the trace identity and the quadratic-form identity).
A New Type of Conserved Quantity of Mei Symmetry for Lagrange Systems

A new type of conserved quantity, which is induced from the Mei symmetry of Lagrange systems, is studied.The conditions for that the new type of conserved quantity exists and the form of the new type of conserved quantity are obtained. An illustrated example is given. The Noether conserved quantity induced from the Mei symmetry of Lagrange systems is a special case of the new type of conserved quantity given in this paper.