军事环境图象的光学处理

为了改善军事环境图象的质量,现已对几种纯光学处理的方法进行了研究。从军事角度考虑,有两种方法证明是不适用的,这就是众所周知的Vander Lugt滤波器和采用相干照明由4f系统形成的经典空间滤波。 另一方面,另外两种方法给出了令人鼓舞的结果:这两种方法就是空间频率的伪彩色编码和借助于一种双象差媒介的密码术。

用认知象似性来解释英汉表达的差异

象似性理论是认知语言学研究的一项重要课题,是对索氏提出的任意性的挑战。本文尝试以新的角度对语言象似性进行探讨,提出4种认知象似性,即文化传统象似性、风俗习惯象似性、地理环境象似性、思维定式象似性,并应用这4种象似性来解释中英两族人对同一事物在语言表达上的差异。

法象思维视域下地龙治疗勃起功能障碍探析

法象思维是指通过效法中药之形态、颜色、栖息环境等表象,取其象而比其类,进而推衍中药的升降走势、归经属性与功效应用。法象思维视域下认识中药,可进一步丰富中药内涵、拓展中药功效、提高临床疗效。地龙为虫类药之一,味苦、性寒,从其性味象、形态象、环境象、行动象可知,地龙具有咸味入肾,性善下行;形态屈曲,归肝定魄;栖息湿壤,引经利湿;行动走窜,通络化瘀的特点,恰与阳痿“肝郁气滞、湿热蕴结、血瘀阻络”之病机合拍。故临床上治疗勃起功能障碍佐用地龙具有满意疗效。需要注意的是,地龙性味寒凉,阳痿属脾肾阳虚者慎用。此外,地龙含有异体蛋白,体质过敏者慎用。

解释中国历史的新思维:环境史——评述伊懋可教授的新著《象之退隐:中国环境史》

这是一篇对伊懋可教授的新著《象之退隐 :中国环境史》的评述 ,由三部分组成。第一部分分析了伊懋可的环境史概念、理论基础和本书的分析框架 ,认为它是经济史、科技文化史和环境史的有机结合。第二部分分析它的史料和方法论特点。史料方面引人注目的是诗歌、传教士回忆录和多种语言研究成果的吸收。在方法论上主要使用了跨学科研究、比较研究和综合分析与案例研究相结合的方法。第三部分提出了三个需要深入研究的问题 ,分别是人口增长与环境破坏的关系 ,介于文人环境意识和农业生产之间的农学知识 ,以及双向比较方法的应用等问题。总之 ,《象之退隐》虽然存在一些问题 ,但瑕不掩瑜。它是一部谁也绕不开的著作 。

TYPICAL WEATHER CHARACTERISTICS ASSOCIATED WITH AIR POLLUTION IN HONG KONG AREA

With the hourly data of Air Pollution Index （AP1） by Hong Kong Environmental Protection Department （HKEPD） during the 6 years of 2000 - 2005 and NCEP / NCAR reanalysis data of 2.5°× 2.5° wind and pressure fields, the characteristics of API in Hong Kong area and the impacts of typical weather characteristics on the air pollution in Hong Kong have been studied. The results are shown as follows. （1） The API exhibits obvious seasonal variability as the number of air pollution days increases by the year. For most of the local monitoring stations, it is the most from January to March, a little less from July to September and the least from April to June. （2） There are four typical types of weather situations that are responsible for the air pollution in Hong Kong： tropical cyclones, continental cold highs, transformed highs that have moved out to sea and low pressure troughs.

Simulating Hydrologic Changes with Climate Change Scenarios in the Haihe River Basin

Climate change scenarios, predicted using the regional climate modeling system of PRECIS (providing regional cli-mates for impacts studies), were used to derive three-layer variable infiltration capacity (VIC-3L) land surface model forthe simulation of hydrologic processes at a spatial resolution of 0.25° × 0.25° in the Haihe River Basin. Three climatescenarios were considered in this study: recent climate (1961-1990), future climate A2 (1991-2100) and future climateB2 (1991-2100) with A2 and B2 being two storylines of future emissions developed with the Intergovernmental Panel onClimate Change (IPCC) special report on emissions scenarios. Overall, under future climate scenarios A2 and B2, theHaihe River Basin would experience warmer climate with increased precipitation, evaporation and runoff production ascompared with recent climate, but would be still likely prone to water shortages in the period of 2031-2070. In addition,under future climate A2 and B2, an increase in runoff during the wet season was noticed, indicating a future rise in theflood occurrence possibility in the Haihe River Basin.

Impacts of Park Landscape Structure on Thermal Environment Using QuickBird and Landsat Images

Urban parks composed mostly of vegetation and water bodies can effectively mitigate the urban heat island effect. Many studies have investigated the cooling effects of urban parks; however, little attention has been given to park landscape structure. Based on landscape metrics, this study has explored the influences of the park landscape structure on its inner thermal environment, taking heavily urbanized Beijing Municipality in China as the study area. Three indices, including the percentage of landscape （PLAND）, landscape shape index （LSI） and aggregation index （AI）, were used to measure the composition and configuration characteristics of the landscape components inside the parks. The indices were calculated for five landscape types being interpreted from Quickbird images. Urban thermal conditions were measured using the land surface temperature （LST） derived from Landsat TM images. The results showed that the park LST had a negative relationship with the park size, but no significant relationship was found with park shape. For the park＇s interior landscape, however, the configuration and composition characteristics of the landscape components inside the park explained 70% of the park LST variance. The area percentage of water bodies and the aggregation index of woodland were identified as the key influencing characteristics. In addition, when the composition and configuration characteristics of the park landscape components were separately considered, the configuration characteristics （LSI and A1） explained approximately 54% of the variance in park LST, which was comparable with that explained by the composition characteristics （PLAND）. Thus, this study suggested that an effective and practical way for urban cooling park design is the optimization of spatial configuration of landscape components inside the park.

Geo-environment in the Sustainable Development of Chinese Cities

Urban geo_environment mainly concerns those regards in and around a city,such as the movement of earth crust and earth surface,conditions of hydrology,geology,geography and meteorology.The relevant studies on geo_disaster reduction and the influences resulted from human activities on the geo_environment are included as well.It is stressed in the paper that geo_environmental protection and management are of significance to the sustainable development for Chinese cities.

ATMOSPHERIC BOUNDARY LAYER CONCEPT MODEL OF THE PEARL RIVER DELTA AND ITS APPLICATION

Based on the geographical circumstance, climate and the boundary layer meteorology features of the Pearl River Delta, a boundary layer concept model of the Pearl River Delta was built. The concept model consists of four fundamental factors that affect the boundary layer meteorology of the Pearl River Delta and can convincingly explain the reason of the air quality change in the Pearl River Delta. The model can be used to the diffusion capability analysis, the air pollution potential forecasting or haze forecasting, etc.

Influence of urbanization on the thermal environment of meteorological station:Satellite-observed evidence

In this paper, five national meteorological stations in Anhui province are taken as typical examples to explore the effects of local urbanization on their thermal environment by using Landsat data from 1990 to 2010. Satellite-based land use/land cover(LULC), land surface temperature(LST), normalized difference vegetation index(NDVI) are used to investigate the effects. The study shows that LULC around meteorological stations changed significantly due to urban expansion. Fast urbanization is the main factor that affects the spatial-temporal distribution of thermal environment around meteorological stations. Moreover, the normalized LST and NDVI exhibit strong inverse correlations around meteorological stations, so the variability of LST can be monitored through evaluating the variability of NDVI. In addition, station-relocation plays an important role in improving representativeness of thermal environment. Notably, the environment representativeness was improved, but when using the data from the station to study climate change, the relocation-induced inhomogeneous data should be considered and adjusted. Consequently,controlling the scale and layout of the urban buildings and constructions around meteorological stations is an effective method to ameliorate observational thermal environment and to improve regional representativeness of station observation. The present work provides observational evidences that high resolution Landsat images can be used to evaluate the thermal environment of meteorological stations.

Variable refractive index in environment matte

Environment matting and compositing is a technique to extract a foreground object, including color, opacity, reflec- tive and refractive properties, from a real-world scene, and synthesize new images by placing it into new environments. The description of the captured object is named environment matte. Recent matting and compositing techniques can produce quite realistic images for objects with complex optical properties. This paper presents an approximate method to transform the matte by simulating variation of the foreground object’s refractive index. Our algorithms can deal with achromatous-and-transparent ob- jects and the experimental results are visually acceptable. Our idea and method can be applied to produce some special video effects, which could be very useful in film making, compared with the extreme difficulty of physically changing an object’s refractive index.

Environmental anomalies in the northeastern East China Sea during the last 3 000 years:implications for El Nio activity in the Holocene

To reconstruct the productivity changes for the last 10 500 a in the northeastern East China Sea （ECS）, biogenic compounds （such as carbonate, organic carbon and opal）, marine micropaleontological fossils （planktonic foraminifera, benthic foraminifera, radiolarian and silicoflagellate） and the compositional characters of benthic foraminifera fauna analyses were carried out on a sediment core DOC082 obtained from the western slope of Okinawa Trough （29°13.93′N, 128°08.53′E; 1 128 m water depth）. The long-term changes of biogenic and micropaleontological proxies display some similarities through the last 10 500 a, which show three different phases： lower values are recorded during the early and middle ttolocene （before about 4 000 a BP）, followed by an abrupt and remarkable increase at about 4 000 a BP, the late Holocene （after about 3 000 a BP） is characterized by continuously high values. The multi-proxy data of paleoproductivity and percents of benthic foraminifera genera （Uvigerina and Bulimina） show that during the early and middle Holocene （10 500-4 000 a BP） productivity was relatively low with a sudden and distinct increase at about 4 000 a BP, and the late Holocene （3 400-0 a BP） is marked by significantly higher productivity. Also, the radiolarian-based sea surface temperature （SST） records reveal a distinct decline in SST in the late Holocene after 3 200 a BP, very different from the early and middle Holocene. For the last 3 000 a, the enhanced biological productivity and distinctly lower SST indicate a major change of oceanographic conditions in the northeastern ECS. These marine environmental anomalies are consistent with other paleoclimatic records for the late Holocene in the Chinese continent and its surrounding regions. After analyzing the mechanisms of modern productivity and SST changes in the northeastern ECS, and based on the climatic anomalies in the Chinese continent and variations in the Kuroshio Current during modern El Nino periods, we suggest that the anomalous environmental conditions in the northeastern ECS may imply intensified El Nino activity during the late Holocene.

The new basic theory on Quaternary environmental research

On the basis of extensive survey to the Quaternary paleosols, soils and weathering layers in the vast northern China and the Loess Plateau, we found some unusually special phenomena of chemical components such as unsuccessive illuvium, twin illuviums, unusually thick illuvium and multi-illuviums etc. According to the analysis on the content of CaCO 3 and the data of penetrating experiment, a new theory of illuvial depth or removal depth of CaCO 3 in weathering and leaching belt was constructed, which indicates that the time of CaCO 3 removing to the illuvial depth is very short, and the effect of time factor on illuvial depth can be ignored. The theory can be taken as a credible foundation for studying many geological and geographical problems in weathering and leaching belt. When the illuvial depth of CaCO 3 is bigger than the thickness of developing belt of soil or paleosol, it can be determined that the paleosol has turned into weathering crust. When the illuvial depth of CaCO 3 is bigger than the thickness of paleosol, paleosol is leaching moderately acid soil. When two, three layers or unusually thick CaCO 3 illuviums exist in the same weathering section or at the bottom of the same paleosol, there were two or more periods forming paleosol and corresponding climatic stages at that time. On the basis of the equation of relationship between mean annual rainfall (y) and illuvial depth of CaCO 3 (x) (y = 305.5x + 168.5) determined in the paper, mean annual precipitation during the development of paleosol can be calculated.

Imagery perspective among young athletes: Differentiation between external and internal visual imagery

Purpose： This study aimed to investigate the construct of external visual imagery （EVI） vs. internal visual imagery （IV/） by comparing the athletes＇ imagery ability with their levels of skill and types of sports. Methods： Seventy-two young athletes in open （n = 45） or closed （n = 27） sports and with different skill levels completed 2 custom-designed tasks. The EVI task involved the subject generating and visualizing the rotated images of different body parts, whereas the IVI task involved the subject visualizing himself or herself performing specific movements. Results： The significant Skill-Level x Sport Type interactions for the EVI task revealed that participants who specialized in open sports and had higher skill-levels had a higher accuracy rate as compared to the other subgroups. For the IVI task, the differences between the groups were less clear： those with higher skill-levels or open sports had a higher accuracy rate than those with lower skill-levels or closed sports. Conclusion： EVI involves the visualization of others and the environment, and would be relevant to higher skill-level athletes who engage in open sports. IVI, in contrast, tends to be more self-oriented and would be relevant for utilization by higher skill-level athletes regardless of sport type.

Effect of Leaf Removal on Grapes of Cabernet Sauvignon and Sangiovese Cultivated in Different Italian Environments

Leaf removal is a farming practice that can affect must and grape quality; it is closely related to the meteorological conditions of the year and the climate of the area. The present study aims to analyse the effects of different types of defoliation, all conducted at veraison and removing 5-6 basal leaves. The trial provided four tests： leaf removal only on the east side, only on the west side, total defoliation （both sides）, and a non-defoliated treatment （control test）. Two different cultivars, the Sangiovese and the Cabernet Sauvignon, were studied in five different Italian environments： Puegnago （BS）, Scansano （GR）, Bolgheri （LI）, Brisighella （RA）, and Montefalco （PG）. The trial was repeated four times, once per year for the successive years 2007, 2008, 2009, and 2010. The years differed mainly with regard to the total rainfall; because of the variability of the years, different results, both for the same cultivar and between the cultivars, were observed. The differences existing between these two varieties and among the different environments led to different reactions to defoliation, especially concerning the analytical parameters of musts and grapes.

Environmental impact prediction using remote sensing images

Environmental impact prediction is an important step in many environmental studies. A wide variety of methods have been developed in this concern. During this study, remote sensing images were used for environmental impact prediction in Ro-batkarim area, Iran, during the years of 2005～2007. It was assumed that environmental impact could be predicted using time series satellite imageries. Natural vegetation cover was chosen as a main environmental element and a case study. Environmental impacts of the regional development on natural vegetation of the area were investigated considering the changes occurred on the extent of natural vegetation cover and the amount of biomass. Vegetation data, land use and land cover classes (as activity factors) within several years were prepared using satellite images. The amount of biomass was measured by Soil-adjusted Vegetation Index (SAVI) and Normalized Difference Vegetation Index (NDVI) based on satellite images. The resulted biomass estimates were tested by the paired samples t-test method. No significant difference was observed between the average biomass of estimated and control samples at the 5% significance level. Finally, regression models were used for the environmental impacts prediction. All obtained regression models for prediction of impacts on natural vegetation cover show values over 0.9 for both correlation coefficient and R-squared. According to the resulted methodology, the prediction models of projects and plans impacts can also be developed for other environmental elements which may be derived using time series remote sensing images.

北京房地产广告发展趋势浅议

北京作为北派房地产广告的代表，有明显不同于海派（上海）、南派（广州）的特点，2003年以前玩艺术、玩概念、玩态度的既定认知已经不再是主流，随着南派地产的北上，全国各大广告公司纷纷建立驻京分公司；与此同时，北京本土广告从业人员一直没有停止自我升级；全球化与网络传播也给广告业带来新气象。北京房地产广告呈现出新的特点与发展趋势。

Quantum Decoherence of Macroscopic Object Induced by Inner Environments： an Exactly Solvable Model

We revisit the quantum decoherence problem of the center of mass motion of a macroscopic object, which is modelled as a one-dimensional atom chain. Induced by the coupling of the center of mass （C.M） motion with the inner degrees of freedom, this inner-environment-induced decoherence is reflected by the localization of the C.M wave packet. We show that, the C.M motion is coupled to the inner states only when the chain has interaction with the external potential. This result provides a realistic mechanism for the analysis of the inner-environment-induced localization of a macroscopic object.

Internet based design of distributed virtual environment for multi-robot teleoperation

Studies the design of distributed virtual environments （DVEs） for tele-multi-robotics. The proposed design, incorporating two models （ distributlon-supported model and VE-supported model）, attempts to represent common functionality, communication issues, and requirements found in multi-operator DVEs. The distribution-supported model concentrates on the introduction of computer-supported collaborative work （CSCW） to realize the coordination of multi-operators, while the VE-supported model concentrates on the utilization of an object-oriented approach to strengthen the expandability and robustness of the system. Finally, the configuration anti running environments of the system are given.

The Role of the Forest in German Literature： From the Medieval Forest to the Griines Band

This paper demonstrates how much the forest was used by medieval writers as a symbolic space where critical events take place deeply affecting their protagonists. The forest motif can be found in the works of St. Augustine as well as in Dante＇s Divina Commedia （ca. 1308-1321）, and then in a plethora of other texts. Here the author examines more closely the symbolic meaning of the forest as a mysterious, dangerous, yet also spiritual location in Wolfram von Eschenbach＇s Titurel （ca. 1220） and then in two 15th-century prose novels： Thtiring von Ringoltingen＇s Melusine （1456） and the anonymous Fortunatus （1509）. Each time we recognize how much the poets placed their central figures one in the forest where their life takes a major turn. Recognizing this intriguing function of the forest as a metaphor and symbol, we can employ the modern interest in and fascination with the forest as a refuge from the destruction of the natural environment through modem civilization as segue to attract students to the study of medieval literature once again.