Ⅰ. INTRODUCTION
In fourth semester most of our department students attend the subject of mechanical manufacturing practice and we have made a bolt by ourselves. But the process was not a soft job. A bolt and nut is used diversely but it seemed that we don't know much about a importance and manufacture of bolts.
A bolt is a threaded fastener used in industry to make two or more mechanical
CAVITY
일정한 속도의 액체가 면적이 작은 부위(수축부 Vena Contracta)를 지날 때 유체의 속도(V)는 빨라지고 압력(P)은 떨어진다, 이때 액체압력이 그 액체의 증기압(Pv)보다 낮아지면 기포가 발생 Vapor 상태가 되는데 이것을 Cavity라 한다. 이 기포는 다시 압력이 상승함에 따라서 밸브Trim 이나 Body 내벽에서
1. List and describe the security controls
and weaknesses at TJX Companies
TJX used Wired Equivalent Privacy (WEP) encryption system which was easy for hackers to attack. Furthermore, TJX had neglected to install firewalls and data encryption on many of the computers in the wireless network. Besides, TJX transmitted credit card details to banks without encryption, violating credit card com
Ⅰ. IBM
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Global Capability and world scale
Technology leadership
Corporation with society
Ⅱ. IBM’s Mission
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Dedication to every client's success
Innovation that matters, for our company and the world
Efforts to crack the big
2. 본론
2.1 형상 결정
구조시스템과의 연계 활동을 통해 선정한 Box형과 Aluminum7075, Titanium재료를 바탕으로 앞으로의 모든 결과 값 산출에 대해 다음의 세 가지 경우를 수행해 보았다.
Case1) Aluminum7075 +Box Case1) - Case2) 같은 형상, 다른 재료
Case2) Titanium +Box Case1) - Case3) 다른 형상