特征曲线

Therefore, the thermoluminescence curve characteristics of the fish otoliths are quite sensitive to water quality and water environment, and this can be regarded as an important indicator to the contamination degree of the water.

研究结果表明，鱼耳石的热释光曲线特征对鱼所生长的水体水质和水环境相当敏感，通过更深入研究，可能成为水质和水环境的重要标型。

In this paper, thermoluminescence characteristics of otoliths of the wild carps in the Baiyangdian Lake of Hebei Province and the Miyun reservoir of Beijing were studied, and the difference of energy gap between the fish otoliths in the two regions was analyzed.

本文对生长在河北白洋淀和北京密云水库的野生鲤鱼耳石的热释光曲线特征进行了研究，分析了两水域野生鲤鱼耳石中陷阱深度值的差别。

Based on physical characteristics, existing stochastic estimation methods of equipment sensitivity to voltage sag use subjective probability models to express the probability distribution of voltage tolerance curve of equipment in the uncertain region. But the parameter estimation needs vast sample data. These methods may result in man-made errors.

现有负荷敏感度随机估计法以电压暂降的物理特征为基础，用主观概率模型描述负荷电压耐受曲线(voltage tolerance curve，VTC)的随机分布规律，所需样本量大，在实际中难以实现且可能引入主观误差。

Finally, a method is developed for detecting feature points of the fragment con-tour based on total curvature.

将曲率和挠率相结合得出轮廓曲线上各点的全曲率，然后由全曲率值来检测碎片轮廓的特征点。

The results indicated that there existed significant variation for the density of glandular trichome among different parents and different individuals of F2 generation.

研究结果表明：烤烟腺毛密度在亲本间和杂交组合F2代个体间存在着较大的遗传变异，F2代不同个体腺毛密度的次数分布经卡方测验符合正态分布曲线，说明腺毛密度具有数量性状的遗传特征，其广义遗传率和狭义遗传率分别为83.3%和26.6%。

Trilinear hysteretic model is put forward for SRSHC, and the calculation formula of the characteristic parameters in hysteretic model of SRSHC is put up. This model also can be usedfor steel reinforced high strength concrete columns. It is the basis of the time analysis of elasto-plastic dynamic.

通过对试验试件的滞回曲线分析，提出了刚度退化的三线型钢骨超高强混凝土柱恢复力模型，通过试验现象和数据，求出了其特征参数的计算公式，从而为工程上进行弹塑性时程分析提供理论基础。

Key words: geometry; fractal; characteristic angle sequence function; method of undetermined coefficient; square wave Koch-like curve

关键 词：几何学；分形；特征角序列函数；待定系数法；Koch类方波曲线

Since the lengths of the line segments and the angles between line segments are treated as representation parameters, it is convenient to construct energy function and to deal with displacement and length constraints. Based on this advantage, a parametrical model for human body is proposed, which can easily produce human body models with different feature sizes. The above method is just suitable for polylines. Therefore, a generic deformation method for both discrete curves and surfaces is presented. The energy function is constructed by analyzing the relationship of the points before and after deformation. Together with the displacement constraints, the deformation problem is converted to a convex quadratic programming. A necessary condition for constraint points and a sufficient condition for the uniqueness of solution are given. The proposed method can be combined with skeleton-driven animation to control the deformation.

将线段长度与线段之间的角度作为表示参数，既有利于能量函数的构造，又便于处理位移约束和长度内蕴约束条件，利用这一优势，将其应用于三维人体的参数化建模，可以方便地产生具有不同特征尺寸参数的人体模型，由于这种方法只适用于折线变形，具有较大局限性，因此，本文进一步提出一种较通用的离散曲线曲面变形方法，通过分析变形前后的位置关系来构造能量函数，再加上位移约束条件，将变形问题转化为一个凸二次规划问题，并且给出了约束点应满足的必要条件及模型解唯一的充分条件，这种方法还可以与骨架驱动变形的思想相结合，能更好的控制变形。

Effect of austenitizing temperature and air cooling rate on microstructure and properties of the CFB/M steel;2. Discussion on the feasibility and economy of 1000MW ultra-supercritical direct air cooling unit;3. Metal transformation temperature under air cooling condition was actually measured.

实测了空冷条件下金属的温度，分析了相变潜热释放引起的温降速度变化规律，并通过冷却速度曲线畸变特征点对实际工况下的金属相变开始温度和结束温度以及相变持续时间进行了判定。

Objective To study the age distribution of the urolithiasis patients in Guangxi province.

目的 探讨尿石症患者发病年龄高峰及年龄分布曲线的形态与特征。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。