【Ｐtt養雞場】 批踢踢實業坊 看板《chicken》
Name :Chobits (羅莉) 生日 :07年12月 2日 (古希 17歲)
體: 2704/2707 法: 211/214 攻擊力:482 敏捷 :428 知識 :2704
快樂 :26779 滿意 :37886 疲勞 :2116 氣質 :160 體重 :27.44
病氣 :0 乾淨 :0 食物 :0 大補丸:0 藥品 :5
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◣ ︶ ◢ 全世界我最喜歡Kinght唷...
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很乾淨..很快樂..很滿足..
除了畢業、唸書、英文、經濟、教會…壓力外又多了一個…
一堆老師耳提面命後年教學評鑑…
說真的…評鑑又不是我們負責的…
只是…如果評鑑沒過…或許該擔心能不能在研所被關掉以前畢業
拜託上帝保佑我吧…學校不要倒…
不然砸了幾十萬換到一張廢紙…
Master_D討論著運動的問題…
但是想到吳媽口中的張老師…
記得張老師算Somebody吧…
等級不夠 還沒有榮幸被指導過…
隱隱約約的記得張老師的名字還蠻出現在reference裡
想想自己…
或許 張老師的地位是我想要的 投身研究 闖出點名堂
肝癌末期…「看他只剩一兩個禮拜了」
吳媽擔憂的說…吳媽才失去他的肋骨沒幾年…連警鈴都說他瘦了
真得是很簡單的道理…健康的重要
吳媽加油 許老大加油
不想失去你們 別把我丟下
假唸書 行灌水之實 Industral Noise
Noise-control Program
NOISE SOURCE Reduction of noise at source by
1.Acoustical design
a.Decrease energy for driving vibrating system.
b.Change coupling between this energy and acoustical radiating system.
c.Change structure so less sound is radiated.
2.Substitution with less noisy equipment.
3.Change in method of processing.
4.Enclosure of noise source.
PATH Reduction of noise by changes in path
1.Increase distance between source and receiver.
2.Acoustical treatment of ceiling, walls and floor to abosorb sound and reduce
reverberation.
RECEIVER Reducton od noise at reciver by
1.Personal protection.
2.Enclosures - isolating the worker.
3.Ratation of personnel to reduce exposure time.
4.Changeing job schedules.
The objectives in industrial audiometry are as follow:
*Obtain a baseline audiogram that indicates an individual's hearing ability
at the time of of the preplacement examinatoin.
*Provide a record of an employee's hearing acuity.
*Check the effectiveness of noise-contril measure by measuring the hearing
thresholds of exposed employees.
*Record significant hearing threshold shifts in exposed employees during the
course of their employment.
*Comply with government regualation.
Threshold Audiometry
Threshold audiometry is used to determine an employee's auditory threshold for
a given stimulus.
The quantity that is of interest, however, is not the sound pressure level of
the normal hearing threshold, but rather the magnitude of departure from a
standard reference threshold.
The term air conduction refers to the air path by whichthe test sounds
generated at the earphones are conducted through air to stimulate the eardrum.
The record of measured hearing thresholds is called a threshold audiogram.
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