Determination of the optical thickness and effective particle radius of clouds from transmitted solar radiation measurements

A method is presented for determining the optical thickness (τc) and effective particle radius (re) of stratiform cloud layers from transmitted solar radiation measurements. A detailed study shows that the cloud optical thickness and effective particle radius of water clouds can be determined from transmission function measurements at 0.75 and 2.13 μm, provided that the scaled optical thickness τ′0.75>1 and re>5 μm. The wavelengths adopted by our study are similar to the channels of the moderate resolution imaging spectrometer (MODIS). The proposed method is invalid for optically thin clouds since transmission at 2.13 μm is less sensitive to re. The retrieval errors of τ′0.75 and re monotonically decrease with increasing τc. For clouds having τ′0.75≥2, the retrieval errors of τ′0.75 and re are below 10% and 20%, respectively. Transmissions at 0.75 and 1.65 μm can also be used to retrieve τc and re.     

Data fusion based on fuzzy measures

Choquet integral based on fuzzy measure is a very popular data fusion approach.A major problem in applying the Cho- quet integral is how to determine a large number of fuzzy measures as the number of attributes increases.Theλ-fuzzy measure proposed by Sngeno is a powerful method to resolve this problem.However,the modeling ability of theλ-fuzzy measure is too limited to satisfy actual requirements.In this paper,an extendedλ-fuzzy measure is proposed using Shapley value index,and the limitation of theλ-fuzzy measure is significantly overcome under little additional computational loads.The extended fuzzy measure has stronger modeling power than theλ- fuzzy measure,straightforwardly representing interaction among attributes.We apply the extended fuzzy measure to an artificial data set and a real dataset in an iron-steel plant.The results verify the usefulness of the extended fuzzy measure compared with other main existing methods.     

KDS-CM： A Cache Mechanism Based on Top-K Data Source for Deep Web Query

Caching is an important technique to enhance the efficiency of query processing. Unfortunately, traditional caching mechanisms are not efficient for deep Web because of storage space and dynamic maintenance limitations. In this paper, we present on providing a cache mechanism based on Top-K data source （KDS-CM） instead of result records for deep Web query. By integrating techniques from IR and Top-K, a data reorganization strategy is presented to model KDS-CM. Also some measures about cache management and optimization are proposed to improve the performances of cache effectively. Experimental results show the benefits of KDS-CM in execution cost and dynamic maintenance when compared with various alternate strategies.     

马尾松愈伤组织诱导条件的研究

采用马尾松(Pinus massoniana Lamb.)成熟合子胚为起始材料,经过0.1%升汞溶液7~9min消毒后,接种于WPM培养基上,在温度26℃,光照强度2 000~3 000 lx,光照时间16 h/d的条件下培养得到无菌苗.采用无菌苗的各器官作为外植体在光照条件下进行愈伤组织的诱导条件的研究,结果显示,以幼茎为外植体,在含GD 6-BA 4.0 mg.L-1 NAA 0.10 mg.L-1 0.3%~0.4%活性碳(CA) 500 mg.L-1水解酪蛋白的培养基上,愈伤组织诱导率可达到93%.     

Effects on Structure and Abrasion Resistance of GCr15 Steel by Surface Gas-Phase RE Diffused Permeation with Laser Melting Solidification

The effects on abrasion resistance and the microstructure of GCr15 steel surface by the compound technology of permeating RE combined with laser melting modification was studied. The results show that after compound treatment, the abrasion resistance of samples has been improved significantly and the weight loss has been reduced to 14% of blank sample; the microstructure has been denser and more uniform than that of untreated; meanwhile, the grain has been refined and the concentration gradients of the elements permeated have been decreased obviously.     

DNA改组在腺相关病毒定向进化中的发展及其应用

DNA改组(DNA shuffling)是一种高通量的突变、筛选技术,自1994年提出以来,经过了几十年的发展,其在DNA、酶和药物蛋白等的改造上都有突出的表现.腺相关病毒(adenoassociated virus,AAV)是一种细小病毒,由于其无致病性和能有效呈递基因而成为一种非常理想的基因表达载体.但是AAV筛除存在一些不足,如对某些重要靶细胞感染效率不高、存在机体的免疫反应等限制了其临床研究的进展.应用DNA改组技术对AAV的衣壳蛋白进行定向进化,有望解决这些问题.本文重点综述DNA改组在AAV衣壳定向进化上的技术发展和应用,并结合本课题组在AAV衣壳DNA改组上的研究工作展开讨论.     

新的差族和几乎差族的构造

利用4阶分圆给出了新的差族,这类差族可以用来构造Hadamard矩阵;利用2阶分圆构造出了一类新的几乎差族,其在很多组合和统计问题中可以给出部分平衡的不完备区组设计.     

镇江市生态建设的现状、问题及对策

分析镇江市生态建设的现状及问题,在保持经济持续发展的前提下解决好社会、经济与环境之间的矛盾,从产业结构、环境质量、生态意识和推进水平等方面开展生态市创建工作。     

赢在管理的三部曲——以通用电气公司管理为例

纵观人类社会的发展,我们发现有人群的活动就有管理,有了管理,组织才能进行正常有效的活动.然而一个企业、组织想要在当代激烈的竞争中取得成功,就更需要重视组织的管理工作.笔者认为在众多的管理理念中,使命感和价值观、力争公平和有效的考评以及变革是管理过程中极其重要的三个部分.三者既各自独立又相互联系,共同构成了企业赢在管理的三部曲.文章着重从这三个方面进行分析,在指出三者重要性的前提下,提出合理化建议,旨在帮助企业和组织赢在管理上.     

Label-free and real-time detection of specific binding of IgG proteins by oblique-incidence reflectivity difference method

The entire interaction process between anti-mouse immunoglobulin-G (IgG) and mouse IgG with a concentration range from 1 to 0.25 mg/mL has been label-free detected by the oblique incidence reflectivity difference (OIRD) method.We achieved the two-dimensional scanning images of OIRD Re{△ p △s } intensities before and after interactions as well as the curves of reaction dynamic processes.The experimental results suggest that OIRD method not only can label-free distinguish the different concentrations of proteins and detect biological microarrays,but also can real-time monitor the kinetic processes of biomolecular interactions.