两分

A general model of two phase image segmentation based on variational level set method is proposed,and the region model is based on the image general probability distribution function.

基于变分水平集方法建立了两相图像分割的通用模型，其区域模型基于图像的一般概率分布函数，通过变分方法得到水平集函数的演化方程和符合常值分布、Gauss分布及Rayleigh分布的参数估计。

In Jiangsu Province promulgated "Foreign construction firms, construction management provisions into" requests, only enterprises in the province failed to meet the tender requirements, in order to allow foreign enterprises Senate bid; Taiyuan City, Shanxi Province and Taiyuan city where received "excellent project manager cards," in large, plus five hours in the field Accreditation of plus 2 hours lower probability of successful enterprise field; Shenzhen, Shanghai and other cities issued documents, only registered enterprises are eligible in the local tender for foreign enterprises in the past two years has stopped registration procedures.

在江苏省颁布的"省外施工企业进省施工管理规定"中要求，只有在省内企业满足不了招标要求时，才允许省外企业参中投标；太原市规定，凡在山西省或太原市领到"优秀项目经理证"的，在评标中加5分，在外地领证的加2分，降低外地企业的中标机率；深圳、上海等城市颁布文件，只有在当地注册的企业才有资格投标，近两年已停止办理外地企业注册登记手续。

By taking listed companies which took part in reform in 2006 for study samples, through descriptive statistic, and regression analysis, the influence of reformation in stock separation on listed company performances in China is analyzed. The result shows that there is a difference between companies which took part in reform and companies which did not take part in.

为了探讨股权分置改革对我国上市公司经营绩效的影响，本文选取沪深两市制造业上市公司为研究样本，通过回归分析和非参数检验进行研究表明参加股权分置改革的公司与未参加股改的公司经营绩效存在显著差异。

Twenty-four sites were sampled over three different periods in three rivers of the plateau. At each site, a riffle and a pool were identified, in a stretch of about 100 m, as separate habitat units, and were sampled for fish and physical habitat. A preference index and logistic regression were used to determine the important habitat variables for each species.

分3个时期选择3条河流的24个地点进行取样，每个样点长100 m左右；分急流和回水湾两种生境类型作为独立的栖息地单元取样，据此观察研究对象和物理环境间的关系；用喜好指数和逻辑回归分析每种鱼重要栖息地是否稳定。

The winners also demonstrated one of the most complicated free programmes of the final, finishing 37.50 points ahead of Ariel Rittenhouse and Kelci Bryant USA

她们两次获得满分10分（决赛的2跳和5跳）并在预赛中圆满完成了最难的自选动作，领先Ariel Rittenhouse 和 Kelci Bryant37.50分。

Research music rich gypsy music special characteristic like Gypsy scale, Csarads and Verbunkos, the music speed is divided quick and the slow two parts, respectively is Lassan and Friska, also rich Verbunkos unique rhythm figure like dotted note, imitates Cimbalom to knock the qin and the Trio timbre, Candenza, Lassan partial morendo recites the way, subject melody Sequence, Rubato and so on.

研究乐曲富吉普赛音乐特质如吉普赛音阶、查尔达斯舞曲和募兵音乐，乐曲速度分快和慢两部份，分别是拉散和富利斯卡、且富有募兵音乐特有节奏音型如附点节奏、模仿匈牙利扬琴的敲琴和震音的音色、装饰奏、拉散部份渐慢而弱的吟唱方式、主题旋律模进、弹性速度等。

Starting from their single word tone and sandhi, this chapter discusses the types and distribution of the the tone-split by aspiration, and its relationship with neighboring dialects and its characteristics of development and changes; analyzes in detail the peculiarities of the Jiashan dialect.

本章从单字调和两字组语音变调入手，探讨杭嘉湖方言气流分调的类型和分布、与周边方言的关系、发展演变的特点，并对嘉善方言独特的气流分调现象进行深入剖析。

The vibro-impact systems are familiar with the non-smooth dynamic systems.The dynamics research of the vibro-impact systems not only is significant in theory but also has practical values in engineering.Firstly,using the Poincaré map method,we get an existent criterion of single impact period-n motion in a two-degree-of-freedom vibro-impact system with damper.It is shown that our conclusions are valid through the numerical simulations.Moreover,the satiability of periodic motions is studied and the correspon...

基于Poincaré映射的方法，通过解析的方法导出了一类具有阻尼的两自由度碰撞振动系统的单碰周期n次谐运动存在性判据，经过数值模拟验证了理论分析的正确性，并给出了分析其稳定性的判别公式，通过数值模拟，讨论系统的局部分岔与全局分岔，同时比较了系统参数变化对其周期运动的影响，发现在强阻尼、弱激励、小质量比、较大恢复系数下系统将会出现较多的有规律的周期碰撞。

Using operator-theoretic-methods, we give some characterizations for a dual generalized frame of a generalized frame in a separable Hilbert space H. We also prove a result concerning two strongly disjiont generalized frames.

本文研究了可分的Hilbert空间H中的广义框架，运用算子理论方法，研究了可分的Hilbert空间H中广义框架的性质，给出了广义框架的对偶广义框架的一些刻画，并且证明了两个广义框架是强非交的一个充分必要条件。

The morphological characteristic showed that the colonies were black green and the hyphae were septum, brown, Spore size was 11.07×25.18μm, mostly ellipse, with three septate , two central cells were larger than both terminal cells , brown to dark brown , terminal cells subhyaline to light Brown after cultured on PDA medium at 5d. The DNA sequence of ribosomal ITS of the isolates was found to match 99% with an ITS sequence of Curvularia verruculosus in GenBank.

为致病菌。该菌在PDA培养基上培养5d后，菌落呈墨绿色，菌丝褐色，有隔，分枝，分生孢子平均大小为11.07×25.18μm，褐色至暗褐色，椭圆形，具有3个隔膜，主隔膜明显加粗，中间两细胞较大。rDNA-ITS测序结果与GeneBank中的序列进行同源性比较发现菌株与Curvularia verruculosus的同源性高达99％。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。