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四、請針對以下火羽在溫度層化環境下(Plumes in Temperature - StratifiedAmbients)的描述,解讀附圖的物理現象。火災科學 1原文:When a buoyant, turbulent plume rises, it cools by entrainment ofambient air. If the ambient air increases in temperature with height, which isnormal in buildings, and the fire source is weak, the temperature differencebetween the plume and the ambient, which gives the plume buoyancy, mayvanish and actually reverse in sign. Eventually the plume ceases to rise.Figure: Theoretical behavior of centerline plume variables in linearlytemperature-stratified ambients. Curve A: ratio of temperature rises (stratifiedversus unstratified), Curve B: ratio of axial velocities. Curve C: ratio of plumeradii. Curve D: ratio of volumetric species concentrations. Where z: heightabove top of combustible (m) and Zm: maximum vertical penetration of plumefluid in stratified ambient (m)火災科學 2

三、請以史帝芬-波茲曼(Stefan-Boltzmann)公式,說明幅射熱熱傳特性(10 分),並針對設備測試、系統功能及性能設計方面,提出 3 種在防火工程(Fire Safety Engineering)上的運用情境(15 分)。

二、A sinusoidal voltage \( E \sin \omega t \), where \( t \) is time, is passed through a half-wave rectifier that clips the negative portion of the wave. Find the Fourier series of the resulting period function. \[ u(t) = \begin{cases} 0 & \text{if } -L < t < 0 \\ E \sin \omega t & \text{if } 0 < t < L \end{cases} \quad p = 2L = \frac{2\pi}{\omega} \]

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16 下列何者是最不適當的鑄道放置位置? (A)3/4 牙冠(three-quarter crown)放在舌側面 (B)MOD 嵌體(inlay)放在遠心邊緣嵴(distal marginal ridge) (C)釘台體(pinledge)放在最大肉厚部且與釘子的方向平行 (D)瓷融合金屬冠(porcelain fused to metal crown)放在頰側咬頭(buccal cusp)

17.某校學務主任閱讀青少年次文化著作,書中提及勞工階級家庭背景學生的反學校文化,包括崇尚陽剛、輕蔑學術知識與文憑等。該著作最接近哪一位學者的觀點? (A)艾波(M. Apple) (B)布迪爾(P. Bourdieu) (C)傅柯(M. Foucault) (D)衛里斯(P. Willis)

13 食品安全性評估中,進行急性毒性試驗,最主要可獲得下列何種資料? (A) LD50 (B) ADI (C) NOAEL (D) GRAS

28. More flexible labor markets will shift (A) both the long-run Phillips curve and the long-run aggregate supply curve to the right. (B) both the long-run Phillips curve and the long-run aggregate supply curve to the left. (C) the long-run Phillips curve to the right and the long-run aggregate supply curve to the left. (D) the long-run Phillips curve to the left and the long-run aggregate supply curve to the right.

29. If the minimum wage increased, then at any given rate of inflation (A) both output and employment would be higher. (B) neither output nor employment would be higher. (C) output would be higher and unemployment would be lower. (D) output would be lower and unemployment would be higher.

22有關我國強制處分決定機關之立法模式,下列敘述何者錯誤?(A)羈押與鑑定留置,均採絕對法官保留模式(B)搜索、扣押以及暫行安置,均採相對法官保留模式(C)具保、責付、限制住居與法官、檢察官勘驗之身體檢查,採二分模式(D)拘提與鑑定人鑑定之身體檢查,採二分模式