浦东新区客源市场分析评价

在细分了浦东新区国际，国内客源市场的基础上，确定了浦东新区国际，国内目标市场的需求和特征，并以东方明珠为实例作了具体分析，同时运用线性回归和指数预算等方法对２０００年和２０１０年客流量作了预测。     

洪门水电站土石坝反馈分析

反馈分析是一种由结果来反推成因，以了解结构本质或参数的方法，本文在反馈分析研究中首次使用了有限元改进弦法，得出了较优的土石坝反馈计算通式，进而以洪门１９８４￣１９９２年沉陷观测资料作为反馈因子，反馈计算出洪门坝体土料的变形模量基数。     

改性羽毛对工业废水中Cr_2O_7~(2-)的吸附性能研究

用不同方法制备改性羽毛及其对Cr2O72-的吸附性能.结果表明:(1)经过不同方法处理过的羽毛对Cr2O72-吸附量不同;(2)不同浓度的含Cr2O72-废水,羽毛的吸附性能也不同;(3)改性羽毛吸附量大,再生性强.     

基于模拟退火机制的网络蜘蛛搜索策略

在分析传统网络蜘蛛搜索机制特点的基础上，将模拟退火机制引入网络蜘蛛的链接选择策略。提出了一种基于模拟退火机制的启发式网络蜘蛛搜索算法。针对国外四所著名大学计算机系网站中计算机论文资源的搜索实验表明，新算法可以有效提高搜索效率。     

A novel audio watermarking scheme using multiscale wavelet modulation

A novel audio watermarking scheme to embed robust and inaudible watermarks for the purpose of copyright protection is proposed. The key innovation is to add time-frequency redundancy into watermark signals by multiscale wavelet modulation. In order to maximize the watermarking strength within perceptual constraints, the signals synthesized from different scales are masked using a frequency auditory model, respectively, and then intergrated to form the final watermark signal. The detection structure is built using the redundancy in watermark signals, and the performance is further enhanced by modeling the statistical behaviors of wavelet coefficients as generalized Gaussian distribution. The use of original audio signal is not required in watermark detection. The experimental results show that our approach can achieve not only good transparency but also satisfying robustness to common audio manipulations.     

“高层建筑结构及辅助设计”教学体系改革与实践

"高层建筑结构及辅助设计"是土木工程专业的专业技术必修课程。围绕培养学生的"工程设计能力",从能力体系、教学内容体系、教学授课体系、能力考核体系等多方面进行了改革与实践。实践表明,教学环节的体系化建设、体系化执行,对培养学生的"工程能力"行之有效。     

具有强迫项正负系数中立型差分方程的振动性

考虑具有强迫项正负系数的中立型差分方程Δ（xn-γnXn-r) pnXn-r-qnXn-σ=cn,n≥n0,其中cn∈R,γn,qn,pn∈[0, ∞}和r,τ,σ∈{1,2,…},获得了这个方程振动的充分条件。     

SLAC1 is required for plant guard cell S-type anion channel function in stomatal signalling

Stomatal pores, formed by two surrounding guard cells in the epidermis of plant leaves, allow influx of atmospheric carbon dioxide in exchange for transpirational water loss. Stomata also restrict the entry of ozone--an important air pollutant that has an increasingly negative impact on crop yields, and thus global carbon fixation and climate change. The aperture of stomatal pores is regulated by the transport of osmotically active ions and metabolites across guard cell membranes. Despite the vital role of guard cells in controlling plant water loss, ozone sensitivity and CO2 supply, the genes encoding some of the main regulators of stomatal movements remain unknown. It has been proposed that guard cell anion channels function as important regulators of stomatal closure and are essential in mediating stomatal responses to physiological and stress stimuli. However, the genes encoding membrane proteins that mediate guard cell anion efflux have not yet been identified. Here we report the mapping and characterization of an ozone-sensitive Arabidopsis thaliana mutant, slac1. We show that SLAC1 (SLOW ANION CHANNEL-ASSOCIATED 1) is preferentially expressed in guard cells and encodes a distant homologue of fungal and bacterial dicarboxylate/malic acid transport proteins. The plasma membrane protein SLAC1 is essential for stomatal closure in response to CO2, abscisic acid, ozone, light/dark transitions, humidity change, calcium ions, hydrogen peroxide and nitric oxide. Mutations in SLAC1 impair slow (S-type) anion channel currents that are activated by cytosolic Ca2+ and abscisic acid, but do not affect rapid (R-type) anion channel currents or Ca2+ channel function. A low homology of SLAC1 to bacterial and fungal organic acid transport proteins, and the permeability of S-type anion channels to malate suggest a vital role for SLAC1 in the function of S-type anion channels.     

Extraction of a weak climatic signal by an ecosystem

The complexity of ecosystems can cause subtle and chaotic responses to changes in external forcing. Although ecosystems may not normally behave chaotically, sensitivity to external influences associated with nonlinearity can lead to amplification of climatic signals. Strong correlations between an El Ni?o index and rainfall and maize yield in Zimbabwe have been demonstrated; the correlation with maize yield was stronger than that with rainfall. A second example is the 100,000-year ice-age cycle, which may arise from a weak cycle in radiation through its influence on the concentration of atmospheric CO2 (ref. 5). Such integration of a weak climatic signal has yet to be demonstrated in a realistic theoretical system. Here we use a particular climatic phenomenon-the observed association between plankton populations around the UK and the position of the Gulf Stream-as a probe to demonstrate how a detailed marine ecosystem model extracts a weak signal that is spread across different meteorological variables. Biological systems may therefore respond to climatic signals other than those that dominate the driving variables.     

复方雪莲胶囊的药效学研究

目的观察复方雪莲胶囊的抗炎镇痛作用和对血液流变学的影响。方法用二甲苯所致小鼠耳廓及乙酸引起小鼠毛细血管通透性的增高试验，观察该药的抗炎作用，用乙酸扭体法研究其镇痛作用；用WTP-B1型毛细血管血液粘度计测定血液流变学指标。结果复方雪莲胶囊对二甲苯所致小鼠耳廓肿胀有明显的抑制作用，并抑制乙酸所致小鼠毛细血管通透性的增高，同时具有明显的镇痛效应，并能降低小鼠全血高切、低切的血粘度。结论复方雪莲胶囊具有活血化瘀之功效。