The roughness of the film was measured by atomic force microscopy and its thickness was measured. ... The obtained films show very low roughness. 한국탄소학회 Carbon letters J. Gruenwald, G. Eichenhofer, G.
In this study, the effect of cutting temperature and surface roughness of titanium alloy for medical ... The regression expressions of cutting temperature and surface roughness were respectively obtained as
From this study, the drag estimation method, considering the roughness by numerical analysis for ships ... As the roughness increases, the boundary layer becomes thicker and the turbulence kinetic energy on the ... or offshore structures, can be provided by using the suggested the y+ value and surface roughness with
In this study, we estimated the equivalent roughness using an estimation model, which considered grain ... Therefore the estimated equivalent roughness values by the model could be proved appropriate. ... We also reviewed the appropriateness of the estimated equivalent roughness at the Goksung and Gurey station
Correspondingly, the surface roughness is measured after the completion of turning operation. ... Later, the surface roughness values from the developed models are compared against the experimental values
In previous study, equivalent roughness is empirically estimated using characteristic grain size. ... of equivalent roughness is difficult because nonuniform size and irregular arrangement of distributed ... Therefore, the flow resistance can be calculated by equivalent roughness in gravel bed stream, but estimation
Eukaryotic의 세포소기관 중 Endoplasmic reticulum(ER)은 rough ER과 smooth ER로 나뉘는데, 이 두 기관이 세포 속에서 어떤 역할을 하는지 서술하고 ... 나눠지는데, 두 개의 소포체가 존재하는 것이 아니라 하나의 소포체 표면에 SER부위와 RER부위로 나누어져 있어 각각의 역할에 따라 구분하는 명칭이라고 볼 수 있다. smooth와 rough라는
North Korea expanded the distribution of propaganda to internet. The North Korea government is manipulating citizens using various methods of mediums...
The purpose of this essay is to analyze the start of North Korea’s propaganda and demagogy using Social Network system. I will define Social Network a..
기계가공은 절삭 부위의 냉각작용과 윤활작용을 위해 절삭유를 많이 소모한다. 절삭유는 염소계의 극압첨가제 등이 함유되어 있어 작업자들에게 유독할 뿐만 아니라 대기의 오염을 초래하여 청정생산을 저해하게 되므로 이런 전통적인 방법은 작업자의 직업병으로부터 보호와 환경보호를 ..
Surface roughness is an important factor to evaluate machined parts in precision machining. ... This research sets up experiments to select the factors which affect surface roughness in the machining
정상을 날든 , 바닥을 기든 .. 목차 1. 서론 Ready! 1-1) 영화를 보게 된 동기 배우도 자신의 인생을 연기하는 사람이다 1-2) 영화 ‘ 배우는 배우다 ’ 소개 1-3) 영화 줄거리 2. 본론 Action! 2-1) 인상 깊은 장면과 대화 의 의미 2-2)..
It is apparent that human language not only plays an important role of a medium which transmits both external and internal human experiences to next g..
Language and Culture It is apparent that human language not only plays an important role as a medium which transmits both external and internal human ..
지난 20년 간 여러 나라에서는 교통관리체계(Traffic Management System)를 발전시켜 오면서 빠른 시간 내에 돌발상황(Incident)을 감지하고 대처하는 방안에 대해서 연구를 해왔다. 돌발상황이 발생하게 되면 교통류의 정상적인 흐름이 어려워지고 도로..
counterpart roughness was rougher in wear test. ... The behavior of abrasive wear on counterpart roughness of glass fiber reinforcement polyurethane resin ... The friction coefficient, cumulative wear volume and surface roughness of these materials against SiC
