应用数学

Sphere;; affine geometry;; similarity geometry;; motion of surface;; integrable equation

论文导师屈长征，论文学位硕士，论文专业应用数学

Characteristics of the development of applied mathematics.

应用数学的发展特点。

Presently I am interested in applied mathematics and later I would like to do research in control theory.

目前，我很感兴趣，应用数学，后来我想，以做研究，在控制理论。

There is no consensus of what the various branches of applied mathematics are.

还没有达成共识的是各部门的应用数学的。

At the same time, I am actively involved in applied mathematics, signal processing and information technology research and learning.

同时，我积极投身于应用数学，信号处理和信息技术方面的研究和学习。

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

上海大学上海市应用数学和力学研究所，上海，200072

As a new cross-subject of applied mathematics, the research on both basic theories and practical by using of probabilistic risk analysis which consists of judgment theory, uncertainty a.

作为应用数学新的交叉学科，集决策理论、不确定分析理论、概率统计于一体的概率风险分析，在国内无论是在基础理论研究和应用研究方面均十分薄弱，缺乏风险分析方向的专家和学术储备。

This program, in line with the development of modern science and national economic construction, aims at the cultivation of cross-disciplinary professionals who will be proficient in economics, management and applied mathematics, competent in the applications of computers and foreign languages, systematic in the mastery of the basic theories and methodology, familiar with the theories and methodology of risk control, market research and data mining, well-cultivated in political, professional and cultural awareness, sound in health, with fairly strong capacities in practical innovation and adaptability.

本专业方向旨在培养适应现代科技发展和国民经济建设需要，具备扎实的经济学、管理学、应用数学基础和较强的计算机应用能力与良好的外国语水平，系统掌握统计学基本理论与方法，熟练掌握风险管理、市场调查、数据挖掘理论与方法，具有良好的思想、业务、文化和身心素质，具有较强的实践创新和适应能力，能在金融机构（含银行、证券、保险、投资机构）、工商企业、政府部门从事统计分析、风险管理、数据分析以及其他经济管理工作的复合应用型专门人才。

How to launch new products in the shortest time, in the best quality, at the lowest cost become the focus of competition, along with increasingly acute market competition. Whatever fruits of science and technology were transformed into competitive commodities, design work pivotally extraordinarily. Every country in the world pays attention to design work. As a result of the development and application of control technique, computer technology, applied mathematics, design means has changed rudimentary. New theory and technology of design come forth ceaselessly.

随着市场竞争日益剧烈，如何以最短的时间、最高的质量、最低的成本将产品投放市场成了竞争的焦点，任何科技成果要转化为有竞争力的商品，设计起着极其关键的作用，世界各国都十分重视设计工作，由于控制技术，计算机技术和应用数学的发展和应用，设计手段发生了根本性变化，设计新理论、新技术不断涌现，逐步地形成和创建了一系列包括脑力劳动自动化和各种人工智能为特征的现代设计方法和技术。

The image processing of steel pipe welding seam X-ray inspection by means of mathematical morphology was analyzed.

应用数学形态学方法对钢管焊缝X 射线检测的图像处理进行了详细地分析研究，通过对钢管焊缝检测灰度图像的去噪、增强和分割处理的实例，讨论了灰度形态学图像处理的方法及其在焊缝射线检测中的应用。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。