南海北部海区温跃层分布特征及成因的初步分析

利用二十一层海温再分析资料，详细分析了我国南海北部海区温跃层的强度、深度及厚度的季节变化特征。结果表明：在南海陆架浅水区域内，存在着随季节变化明显的辐射型温跃层；3－5月是温跃层的成长期：6－8月是该海域温跃层的强盛期；而9－11月温跃层开始减弱，到了冬季（12月到次年2月）温跃层变得最终，趋于消亡。结合本海区温跃层的这种变化特征，分析了该海域净辐射通量的分布状况及随季节的变化特征，证明了净辐射通量是影响该海域温跃层季节性分布特征的最重要因素之一。     

On the intrinsic shape of the gamma-ray spectrum for Fermi blazars

The curvature of the γ-ray spectrum in blazars may reflect the intrinsic distribution of emitting electrons, which will further give some information on the possible acceleration and cooling processes in the emitting region. The γ-ray spectra of Fermi blazars are normally fitted either by a single power-law(PL) or a log-normal(call Logarithmic Parabola, LP) form. The possible reason for this difference is not clear. We statistically explore this issue based on the different observational properties of 1419 Fermi blazars in the 3 LAC Clean Sample. We find that the γ-ray flux(100 Me V–100 Ge V) and variability index follow bimodal distributions for PL and LP blazars, where the γ-ray flux and variability index show a positive correlation. However, the distributions of γ-ray luminosity and redshift follow a unimodal distribution. Our results suggest that the bimodal distribution of γ-ray fluxes for LP and PL blazars may not be intrinsic and all blazars may have an intrinsically curved γ-ray spectrum, and the PL spectrum is just caused by the fitting effect due to less photons.     

Structural, curvature and electronic properties of Rh adsorption on armchair single-walled carbon nanotube

This paper systematically studies the rolling effects of the (n, n) single-wall carbon nanotubes (SWCNT) with different curvatures on Rh adsorption behaviours by using density functional theory. The outside charge densities of SWCNTs are found to be higher than those inside, and the differences decrease with the increase of the tube radius. This electronic property led to the discovery that the outside adsorption energies are higher than the inside ones, and that the differences are reduced with the increase of the tube radius. Partial density of states and charge density difference indicate that these strong interactions induce electron transfer between Rh atoms and SWCNTs.     

Magnetostriction of Fe81Ga19 oriented crystals

The effect of the orientation on the magnetostriction in Fe₈₁Ga₁₉ alloy has been investigated experimentally and theoretically. The Fe₈₁Ga₁₉ [001] and [110] oriented crystals were prepared and the magnetostriction was measured under different pre-stress. The saturation magnetostriction of the [001] oriented crystal increases from 170×10^-6 to 330×10^-6 under the pre-stress from 0 to 50 MPa. The [110] oriented crystal has a saturation magnetostriction from 20×10^-6 to 140×10^-6 with the compressive pre-stress from 0 to 40 MPa. The magnetostriction of [001] and [110] oriented crystals has been simulated based on the phenomenological theory. The domain rotation path has been determined and the resultant magnetostriction calculated under different pre-stress. The experimental and simulated results both show that the [001] oriented crystal exhibits better magnetostriction than [110] oriented crystal. The enhancement of the saturation magnetostriction by the compressive pre-stress in the [110] oriented crystal is higher than that in the [001] oriented crystal.     

Physical geographical background of the culture of traditional Chinese residential architecture

ThetheSisistoexplainthebasicfactorsreferringtothetraditionalChineseresidentialarchitecturebasicallyfinalizedintheMingandQingdynastiesinthecountry'sspecificphysicalenvironment.Restrainedbyaxialfactors,itadaptsitselftotheself-sufficientnatural~nomy.Itisfiexiblydesigned,rsoablyfunctioned,economicallyconstructedandfeaturedbyremarkablelocalcharacteristics.IINFLUENCEOFCLIMATEONTRADITIONalarSIOCNTIAnANCnITh~arNinetyPercentofChina'spopulationinhabitstheeasternareawithinthedemarcati…     

一种插值相似方法作温度预测的应用研究

将插值方法运用到短期气象预测中，其基本原理是按照相似原理将产生相似结果来作预报。对云南昆明等四站温度进行了九年定性和定量预报检验，结果表明：这种方法具有良好的预报能力，可以作要素预报应用。     

大欧拉角的空间直角坐标转换方法探讨

首先指出建立使用大旋转角的空间直角坐标转换模型的必要性，接着推导出以罗德里格矩阵为旋转矩阵的大欧拉角空间直角坐标转换的数学模型，然后以布尔沙模型为例、以Visual C#．NET2003编制了计算软件。该算法具有性能稳定、计算收敛速度快、精确度高、转换参数初始值可以为任意值的优点。     

盐井二次定向对接连通施工工艺

新汶矿业集团泰山盐化工ZJ03-PJ03井组为一对定向连通采卤井井组，采用二次定向钻井连通施工工艺，技术套管下入深度907．6m（8矿层顶板），有效地阻隔了上部含较多杂质的岩盐矿层，确保了卤水质量能满足盐化工的需要。本对接连通井组，采用随钻测量井斜、方位及钻进轨迹控制技术，为该井组的顺利对接提供了技术保障。     

绍兴市城镇用地扩展的遥感监测

随着我国改革开放政策的实施,绍兴市的经济得到飞速发展,城市规模迅速扩大。城市扩展趋势如何,土地的开发利用现状如何是制定今后土地利用规划,进行土地管理、开发的重要依据。为此绍兴市土地局开展了以TM影像为基本信息源的城镇遥感监测工作,本文对此工作进行了分析探讨。     

中国传统民居建筑文化的自然地理背景

讨论了气候、地貌与水文、地质与植被等自然地理要素对中国传统民居建筑的格局、型式、风格、特色等方面的影响。在此基础上分析了以功利观、审美观和生态观为内涵的中国传统民居建筑文化的自然观。