2. A bird came down the Walk
A Bird came down the Walk-
He did not know I saw-
He bit an angle-worm in halves
And ate the fellow, raw.
And then he drank a Dew
From a convenient Grass,
And then hopped sidewise to the Wall
To let a Beetle pass-
He glanced with rapid eyes
That hurried all abroad-
They looked like frightened Beads, I thought-
He stirred his velvet H
*******[C]*********
CAF(Currency Adjustment Factor) 통화할증료
- 정기선사나 정기선 운임동맹에 의하여 부과되는 Surcharge의 일종이다. 선박회사의 Tariff에 규정된 통화로 환전할 때 발생할 수 있는 불이익을 보충하며 선박회사의 수익을 보장하기 위하여 부과한다. CAF는 기본 운임률에 일정한 Percentage로서 부과된
2-5 파르트렉 트레이닝(Fartlek Training)
인터벌 트레이닝에 대해 이야기할 때 빠뜨릴 수 없는 것이 파르트렉 트레이닝이다. 파르트렉은 스웨덴어인데 문자 그대로 번역하면 "속도 놀이(speed play)"이다. 그것은 무엇인가? 그것은 단순하다. 파르트렉 트레이닝은 모든 종류의 인터벌 트레이닝을 하나의 운동에
1. Getting Started
Around the early 1990's, imported automobiles were difficult to spot in Korea parked around the bustling streets of big cities. These were the automobiles one could only dream of riding in, which gave a unique look and flavour one would only desire to taste. Now, after ten years, these automobiles can be seen quite frequently, and out of the imported automobiles the one t
NOTAR(NO Tail Rotor)
Antitorque by using airflow
More expensive but less noise
Coaxial Helicopter (concentric or located along the same axis)
Coaxial Helicopter use Two shafts.
Each shaft rotate opposite direction.
→anti-torque
High Useful Load but complicate rotor design
Problem 3.52
One of the tail rotor blade of a helicopter has an unbalanced mass if m = 0.5