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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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18.《高級中等學校訂定學生服裝儀容規定之原則》提及,學生的服裝儀容於重要活動應遵守學校統一規定,學校對於違反規定者,得視情節,採取適當且合乎比例原則之輔導或管教措施,並不得加以處罰。實際上,為達班級凝聚之目的,同儕會相互約束統一服儀。上述情境最符合涂爾幹(E. Durkheim)的哪一個理論觀點? (A)道德規範 (B)社會正義 (C)權力展演 (D)社會認同

10.航空器駕駛員,駕駛航空器飛越禁航區者:(A)處三個月以下有期徒刑 (B)處六個月以下有期徒刑 (C)處二年以下有期徒刑拘役或新台幣40萬元以下罰金 (D)處一年以下有期徒刑

8. The private school mainly serves ______ families who can afford high tuition and extensive extracurricular programs. (A) negligible (B) ubiquitous (C) unsightly (D) affluent

39. 吸入型類固醇根據生體獲得率的高低可以大分為四代,下列描述何者為非? (A) 第一代吸入型類固醇生體獲得率大於 20% (B) 第二代吸入型類固醇生體獲得率大約為 10%左右 (C) 第三代吸入型類固醇生體獲得率大約小於 1-2% (D) 第四代吸入型類固醇生體獲得率則小於 0.1% (E) Dexamethasone 吸入型類固醇生體獲得率小於 20%

Consider the following information about bread production at Beth's Bakery. 17. Beth pays all her workers the same wage, and labor is her only variable cost. From this information we can conclude that Beth's marginal cost (A) is constant. (B) increases as output increases from 0 to 33, but declines after that. (C) declines as output increases from 0 to 11, but increases after that. (D) declines as output increases from 0 to 33, but increases after that.