TRANSACTIONS OF NANJING UNIVERSITY OF AERONAUTICS ＆ ASTRONAUTICS

Transactions of Nanjing University of Aeronautics ＆ Astronautics （ISSN 1005-1120） is a comprehensive academic publication focusing on the research achievements in aeronautics, civil aviation, astronautics and their theoretical basis. It mainly publishes the papers on advancements in science and technology researches, and significant achievements in researches on aerospace engineering, aircraft design, energy and power engineering, automation engineering, electronic engineering, computer science and application, mechano-electronics, material science and technology, civil aviation and their theoretical basis, such as solid mechanics, fluid mechanics, flight mechanics, flight control, navigation theory, applied mathematics and applied physics as well. It is published quarterly by Nanjing University of Aero- nautics ＆ Astronautics, and has started its publication since Oct. 1982. It is the first ＂Ten-Best Science and Technology Journals＂ in jiangsu Province.     

TRANSACTIONS OF NANJING UNIVERSITY OF AERONAUTICS ＆ ASTRONAUTICS

Transactions of Nanjing University of Aeronautics ＆ Astronautics （ISSN 1005-1120） is a comprehensive academic publication focusing on the research achievements in aeronautics, civil aviation, astronautics and their theoretical basis. It mainly publishes the papers on advancements in science and technology researches, and significant achievements in researches on aerospace engineering, aircraft design, energy and power engineering, automation engineering, electronic engineering, computer science and application, mechano-electronics, material science and technology, civil aviation and their theoretical basis, such as solid mechanics, fluid mechanics, flight mechanics, flight control, navigation theory, applied mathematics and applied physics as well. It is published quarterly by Nanjing University of Aeronautics ＆ Astronautics, and has started its publication since Oct. 1982. It is the first ＂Ten-Best Science and Technology Journals＂ in Jiangsu Province.     

TRANSACTIONS OF NANJING UNIVERSITY OF AERONAUTICS & ASTRONAUTICS

Transactions of Nanjing University of Aeronautics &Astronautics ( TNUAA,in English) is acomprehensive academic publication which deals mainly with the research achievements in aeronautics,civil aviation,astronautics and their theoretical basis.It is published by Nanjing University ofAeronautics &Astronautics,and has started its publication since Oct.1 982 .The original name of thejournal is“Journal of Nanjing Aeronautical Institute”( English Edition) .Itwas an annual.Since1 993ithas…     

TRANSACTIONS OF NANJING UNIVERSITY OF AERONAUTICS ＆ ASTRONAUTICS

Transactions of Nanjing University of Aeronautics ＆ Astronautics （ISSN 1005-1120） is a comprehensive academic publication focusing on the research achievements in aeronautics, civil aviation, astronautics and their theoretical basis. It mainly publishes the papers on advancements in science and technology researches, and significant achievements in researches on aerospace engineering, aircraft design, energy and power engineering, automation engineering, electronic engineering, computer science and application, mechano-electronics, material science and technology, civil aviation and their theoretical basis, such as solid mechanics, fluid mechanics, flight mechanics, flight control, navigation theory, applied mathematics and applied physics as well. It is published quarterly by Nanjing University of Aeronautics ＆ Astronautics, and has started its publication since Oct. 1982. It is the first “Ten-Best Science and Technology Journals” in Jiangsu Province.     

AN ELEMENTARY ANALYSIS OF PROBLEMS IN APPLICATION OF SPACE METHOD IN STRATEGIC MANAGEMENT OF ENTERPRISES

企业战略管理在我国还是一门新兴学科，随着改革发展的深入，越来越多的企业已认识到它的重要性，并最终采用它。本文论述了在企业战略管理ＳＰＡＣＥ方法中，如何应用Ｄｅｌｐｈｉ方法确定企业战略要素及评价。而它的确定及评价，真实刻划了企业在目前竞争环境中所处的战略位置，为企业正确选择发展战略奠定了基础。     

STUDIES ON SINTERING TECHNOLOGY OF HAMMERS OF FOOD HAMMER MILL

提出了粉碎机锤片的烧结新工艺，并且系统研究了烧结配方、工艺参数。通过单因素试验和正交试验获得最佳参数。实验结果为锤片的进一步应用提供了理论指导和实验数据。     

PARAMETERIZATION OF TRIANGULAR MESHES

A new algorithm called the weighted least square discrete parameterization (WLSDP) is presented for the parameterization of triangular meshes over a convex planar region. This atgorithm is the linear combination of the discrete Conformal mapping (DCM) and the discrete Authalic mapping (DAM). It provides the good properties of both DCM and DAM, such as robustness and low distortion. By adjusting the scaling factor q embedded in the WLSDP, satisfactory parameterizations in different special applications can be achieved.     

EFFECTS OF MISCHMETAL ADDITION ON THE CAST MICROSTRUCTURE OF 6063 ALLOYS

采用光镜，电镜，阳极复膜等手段研究了稀土对６０６３合金铸态组织的影响。结果表明，稀土细化枝晶组织有一临界含量，这个临界含量约为０．１５％ＲＥ。当稀土含量大于０．１５％时，稀土才会减小二次枝晶间距并细化共晶组织。而稀土细化晶粒在低含量时最为明显。从铸态组织考虑，６０６３合金中加入０．２０％ＲＥ为宜。