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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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33.發泡錠(effervescent tablets)遇水所產生的泡沫(bubble)有何製劑上的作用? (A)泡沫導引而增強滲透 (B)懸浮作用而留置胃內 (C)崩解錠片而增強溶離 (D)張力降低而易於分散

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28 受監護宣告之人的行為能力為何? (A)無行為能力 (B)限制行為能力 (C)部分行為能力 (D)完全行為能力

13. The sales figures show that the company has seen ____ growth this quarter.(A) consider(B) consideration(C) considerably(D) considerable

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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