Optimization parameter of transformation of parallel translation for ship pitch simulation

2002 ◽  
Vol 1 (2) ◽  
pp. 33-36
Author(s):  
Ji-hong Shen
Keyword(s):  
Parallel Translation ◽  
Optimization Parameter ◽  
Ship Pitch

Testing Study on the Influence Factors to the Straw Pellet Fuel Broken Strength

2013 ◽  
Vol 448-453 ◽  
pp. 786-790
Author(s):  
Wei Gao ◽  
Rong Fei Zhao ◽  
Qing Yu Liu ◽  
Xu Wei Bai
Keyword(s):  
Moisture Content ◽  
Optimal Parameter ◽  
Influence Factors ◽  
Raw Material ◽  
Single Factor ◽  
Quadratic Regression ◽  
Corn Straw ◽  
Fermentation Time ◽  
Optimization Parameter ◽  
Single Factor Experiment

This paper take link mold pellet pelletizer to carry on the pellet fuel manufacture experiment with corn straw stalk. The influence of moisture content, material size and fermentation time impact on broken strength is studied by single factor experiment. Through quadratic regression orthogonal rotating combination experiment, establish mathematics equation of the factors and the straw pellet fuel broken strength and analyze the important degree of each experimental factor impact on the granulation rate. Through the optimized computation, definite optimization parameter of the highest broken strength is that raw material moisture content is 20%, fermentation time is 4h and particle size is 2.5mm. The result of verifying experiment indicat that the optimal parameter combination and the predict data measured were consistent.

Ship pitch-roll stabilization by active fins using a controller based on onboard hydrodynamic prediction

2018 ◽  
Vol 164 ◽  
pp. 212-227 ◽  
Author(s):  
Limin Huang ◽  
Yang Han ◽  
Wenyang Duan ◽  
Yi Zheng ◽  
Shan Ma
Keyword(s):  
Roll Stabilization ◽  
Ship Pitch

scholarly journals VII. An account of a bitumen lake or plain in the island of Trinidad

1789 ◽  
Vol 79 ◽  
pp. 65-70 ◽  
Keyword(s):  
Leeward Side ◽  
High Mountains ◽  
The South ◽  
Mangrove Swamps ◽  
The North ◽  
North Side ◽  
Ship Pitch ◽  
Production Of Nature

A most remarkable production of nature in the island of Trinidad, is a bituminous lake, or rather plain, known by the name of Tar Lake; by the French called La Bray, from the resemblance to, and answering the intention of, ship pitch. It lies in the leeward side of the island, about half-way from the Bocas to the south end, where the Mangrove swamps are interrupted by the sand-banks and hills; and on a point of land which extends into the sea about two miles, exactly opposite to the high mountains of Paria, on the north side of the Gulf.

Parallel Translation in Vector Bundles with Abelian Structure Group and the Gauss-Bonnet Formula

1973 ◽  
Vol 25 (4) ◽  
pp. 765-771
Author(s):  
Hansklaus Rummler
Keyword(s):  
Riemannian Manifold ◽  
Simple Proof ◽  
General Result ◽  
Tangent Bundle ◽  
Vector Bundles ◽  
Structure Group ◽  
Parallel Translation ◽  
Result Theorem

Most proofs for the classical Gauss-Bonnet formula use special coordinates, or other non-trivial preparations. Here, a simple proof is given, based on the fact that the structure group SO(2) of the tangent bundle of an oriented 2-dimensional Riemannian manifold is abelian. Since only this hypothesis is used, we prove a slightly more general result (Theorem 1).

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