In order to enrich the content of the anatomy and histology about andrias davidianus , obtain new data about systematic position and blood circulation physiology and also provide reference for comparative anatomy and vertebrate evolution reseach , we studied the anatomy and histology about andrias davidianus by means of normal inject method , normal paraffin section method , microcopy system and digital camera 本研究主要采用常規血管注射法,常規石蠟切片法,以及光學顯微照相系統和熒光顯微數碼照相系統對中國大鯢( andriasdavidianus )的循環系統進行了比較詳細的解剖學觀察研究,并對其心臟及血管進行了組織學研究。目的在于豐富中國大鯢解剖學和組織學的資料,為中國大鯢分類地位的探討和血液循環生理研究提供解剖學依據,同時也為比較解剖學和脊椎動物的進化提供解剖學依據。
After the orderly reduction methods of massive scattered data being studied , this paper proposes a partial tangent plane slicing method and a virtual second - scan line method after giving a new k - nearest algorithm to re - organize the massive data . the new proposed methods of data reduction and grey theory based unusual noisy data process can be used to generate the scan line type data and it can be directly used to reconstruct curves and surfaces . the research lays a good foundation for reconstructing the cad model in a point - line - surface manner 4 .深入研究了海量散亂數據的有序簡化技術,在提出建立海量數據點鄰接關系k -鄰近新的算法基礎上,提出了局部切平面切片法和虛擬二次掃描線法,實現了海量數據的有序重組,通過基于灰理論的數據簡化和異常點處理新方法,生成可用于直接重構曲線曲面的掃描線類型數據,為以點?線?面方式重構cad模型打下了良好的基礎。
On the basis of this analysis the radiation and diffraction forces of the ship are calculated using these three methods and compared . at the same time vertical ship motions in regular wave are solved by these three methods . the results are compared to test each method ' s availability and suitability , thus the theoretical basis of optimize design of sea - keeping performance is provided 分別介紹了二維切片法、高速細長體理論和三維理論的基本原理,分析了三種不同方法各自的適用性,在此基礎上分別計算了船舶的輻射力和繞射力,比較了這三種方法的計算結果,為不同營運目的的船舶耐波性計算提供陜速有效而實用的計算方法;同時應用三種方法計算了船舶在規則波中的垂向穩態運動響應,比較三種方法的計算結果,測試各種方法的有效性和適用性,為船舶耐波性的優化設計提供原始的理論基礎; 2