可行性研究

Space curve is one of the basic elements in geometric modeling, and its effective representation is the basis of modeling. Parametric representation based on features is a kind of high-level representation including semantic information. In Chapter 4, para- metric representations based on features for free form space curve are investigated, and a parametric model for the loop of plain knitted fabric is established, in which 5 parameters with practical meanings are used to represent the shape of a loop and the relationship between loops. A new shrinkage prediction method for knitted fabric are proposed based on the parametric representation and energy minimizing. Experimental results on some plain knitted fabrics illustrate the feasibility of the proposed method.

空间曲线是造型中最基本的几何元素之一，对其有效的表示是造型的基础，而特征参数化表示是其中一种包含语义信息的高层次表示，本文对空间自由曲线的特征参数化表示进行研究，建立了一种针织物线圈的特征参数化几何模型，采用5个具有实际意义的参数表示织物线圈的几何形状及线圈之间的位置关系，并将该模型与能量极小化的方法相结合，得到了一种能较好地预测针织物缩水率的新模型，对随机选取的一些针织布缩水预测实验表明了算法的可行性。

By employing two kinds of molecular marker of mitochondrial DNA, i. e. Cyt b and CoI gene, the sequences of 15 species representing 6 families from Passeriformes were compared. We analysed their sequences compose and characteristic with the sorft of MEG3.1, and built the phylogenetic trees in PAUP~*4.0. We deeply analysed the feasibility that CoI gene qua the marker to research the phylogenetic relationship of Passeriformes, and afford the academic proof for building the DNA barcoding of the birds.

本文分别以线粒体DNA的细胞色素b和CoI基因作为分子标记，对雀形目6科15种鸟类的细胞色素b基因全序列(1，143bp)和CoI基因部分序列(1，176bp)的组成特点及其系统发育树进行了比较分析，还探讨了CoI基因作为雀形目系统发育研究和构建鸟类物种DNA编码库的分子标记的可行性，旨在为DNA编码库的构建积累基础资料。

The model proposed by Penna TJP in 1995 has then used a computer Bit-String to represent an individual,i.e.,the genome of this individual.

这些工作从不同侧面显示了相应研究方法的可行性和必要性，但其中对个体信息的表达一般不充分，利用效率不高。

With further researches of the relationship of the network states with maximum or minimum value of network throughput,the fast algorithms of calculating exact value,approximate value,upper and lower bounds on network performability are proposed,respectively.

以此为基础，对不同数目失效链路所有网络状态中最大通过量和最小通过量的状态之间的关系进行了研究，得到了快速计算电信网可行性精确值，近似值及其上下界的方法。

Objective To evaluate the use of peripherally inserted central catheter in perioperative patients with abdominal malignancies for parenteral nutrition.

目的 前瞻性研究外周静脉穿刺中心静脉导管(peripherally inserted central catheter， PICC)临床应用的可行性。

According to the results of morphological, cytological and molecular identification, it was proved that cybrids were obtained from 7-0-8-4+66-3 fusion combination, and the petaloid cytoplasmic male st

论文对影响胡萝卜原生质体非对称融合的若干因子、组培茵的先期抽墓、利用非对称融合转移胡萝卜瓣化型雄性不育性的可行性、本研究存在的问题及改进方案以及非对称原生质体融合在胡萝卜资源创新中的应用价值等进行了讨论。

Objective: To investigate the feasibility of using arch-crossing intramedullary nail to fix the phalanx fracture.

目的：研究应用弧形交叉髓内钉在治疗指骨骨折的固定可行性。

Objective:To find a good protocol of decellularization and dye-mediated photooxidation in bovine pericardium,evaluation the feasibility as a new biomaterial substitution in cardiac surgery.

目的：研究比较理想的去细胞结合光氧化法处理牛心包的方案，初步探讨其作为心血管生物组织替代材料的可行性。

In measuring the physiographic features of watersheds, geographic information systems were applied. The accuracy of the model prototypes adopted in this study is parallel to that of the unit-hydrograph models.

结果显示本研究提出的解决方案确实具有可行性，模式雏型对洪峰流量与测时间推估的正确性，可以达到单位流量历线模式的水准。

The paper suggests some principles for forest structure adjustment,named principle of integrative decision-making,principle of safeguarding ecosystem integrality of physiographic region,principle of environmental rationality and principle of economic feasibility and dynamic.

该文运用可持续发展的研究方法，结合我国正在进行的森林资源结构调整和林业分类经营，提出了森林资源结构调整的原则，即综合决策原则，保障生态区生态系统完整性的原则，环境合理性、经济可行性和动态性原则。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。