terrible

It's frustrate that someone don't want to cooperate with you.
Sometimes I want to give up because the work is not mine original.
They said they want a club that can prove their right, and so? They do like this?
Don't say too many things while you don't want to do any things by yourself.
I want to burst out crying but I know that is my poor ability.

I have to learn more, but.....

WHO CAN HELP ME?

learn more

recently, I force myself to do many things that I never did before.
I think that is a big challenge I gave myself.
and.....I also got much pressure on my body because I don't have confidence to do well.

It's a voluntary work that I want to do, so I have to do my best though it is difficult to me.

To learn is to train, so I keep training myself.

When I fell in a bad mood and didn't know how to do, I was glad that too many friends supported me and cheered me up.

Not only in the past but also now, and in the future, I am delighted to have all you, my friends.

工廠實習－－車床作品

這次作品輪到我來操刀了～

車床阿，

就是車圓的東西吧！

還費盡一番心思參考了有造型的形狀，

結果由於能力不足，

還是只能車簡單的東西↓

有點像白巧克力泉的感覺～～

逆時、反時針～直線、斜線～都用到了

就是這次的成品。

熱力學定律

熱力學好無聊喔～！！！
機械系大三還要修耶！
oh no.......希望是堂有趣的課～可能嗎？？


熱力學第零定律：在不受外界影響的情況下，只要A和B同時與C處於熱平衡，即使A和B沒有熱接觸，他們仍然處於熱平衡狀態。這個定律說明，互相處於熱平衡的物體之間必然具有相等的溫度。

熱力學第一定律：能量守恆定律對非孤立系統的擴展。此時能量可以以功W或熱量Q的形式傳入或傳出系統。熱力學第一定律表達式為：Eint = Eint,f − Eint,i = Q − W

熱力學第二定律：孤立系統熵(失序)不會減少──簡言之，熱不能自發的從冷處轉到熱處，而不引起其他變化。任何高溫的物體在不受熱的情況下，都會逐漸冷卻。這條定律說明第二類永動機不可能製造成功。熵增原理：△S≥0。

熱力學第三定律：不可能以有限程序達到絕對零度──換句話說，絕對零度永遠不可能達到。

很久沒寫記事

上一次我的小朋友雅雲跟我要無名，
我才想到，
我很久沒寫心情記事的網誌了。

雅雲真的很可愛 ^ ^~
不愧是我帶的小朋友～～哈哈哈

Geneva mechanism 日內瓦輪

被動輪中若某一導槽關閉，則驅動輪A僅能在其他部份作雙向迴轉運動，碰到關閉的導槽，運動即會停止。這種改變方式也應用於一些鐘錶、音樂盒中，以防止發條過份上緊。其應用又稱為日內瓦制動機制(Geneva stop)。結構上，驅動輪A變為彈簧之安全裝置，當B接上發條時，由A上緊，但因B無法驅動A，故不會產生往後倒退的現象。B輪上導槽之數目可以改變，依其所需要之轉變而定。下圖為SimDesign 軟體應用之例，可以參考。

http://www.bime.ntu.edu.tw/~dsfon/Mechanism/chap1.htm