完美反射扩散器（PRD）

Electrochemical potential, [latex]\bar{\mu}_i[/latex], quantifies the total energy of a charged species `i` in a system. It combines the chemical potential, [latex]\mu_i[/latex], which accounts for concentration and intrinsic properties, with the electrostatic potential energy, [latex]z_i F \phi[/latex]. The formula is [latex]\bar{\mu}_i = \mu_i + z_i F \phi[/latex], where [latex]z_i[/latex] is the ion's charge, [latex]F[/latex] is the Faraday constant, and [latex]phi[/latex] is the local electric potential.

相关色温 (CCT) 是衡量非理想黑体辐射光源（例如 LED 或荧光灯）色温的指标。它是指与光源颜色感知最接近的普朗克辐射体的温度。这种“接近度”是通过在普朗克轨迹上找到距离光源色度坐标最近的点来确定的。

A superacid is an acid with an acidity greater than that of 100% pure sulfuric acid. The conventional pH scale is inadequate for these media. Instead, their acidity is measured using the Hammett acidity function, [latex]H_0[/latex]. This function is based on the protonation of weak indicator bases and is defined as [latex]H_0 = pK_{BH^+} - \log\left(\frac{[BH^+]}{[B]}}\right)[/latex].

蒽醌法工艺开发于20世纪30年代，是生产过氧化氢的主要工业方法。该工艺首先将蒽醌衍生物加氢生成蒽氢醌，然后用空气氧化蒽醌，再生出原始蒽醌并生成过氧化氢。之后，用水提取过氧化氢并浓缩，形成一个连续高效的循环。

氧化态，或称氧化数，是指假设一个原子与不同原子的所有键均为100%离子键时，该原子所带的电荷。它提供了一种追踪氧化还原反应中电子转移的方法。氧化态升高表示氧化，氧化态降低表示还原。这种形式简化了复杂化学反应的分析。

A non-Newtonian fluid is one whose viscosity changes under an applied shear stress. Unlike a Newtonian fluid where viscosity is constant, its flow properties are not described by a linear relationship between shear stress ([latex]\tau[/latex]) and shear rate ([latex]\dot{\gamma}[/latex]). This dependency can manifest as shear-thinning (viscosity decreases with stress) or shear-thickening (viscosity increases with stress).

普朗克轨迹是白炽灯黑体辐射器的颜色随其温度变化在色度空间中的变化路径。它通常绘制在CIE 1931 xy色度图上，呈现为一条从红橙色区域到蓝白色区域的圆弧。它是定义色温的基本参考。

紫外线光谱通常细分为UVA（400-315纳米）、UVB（315-280纳米）和UVC（280-100纳米）。UVA，即长波紫外线，能量最低，穿透皮肤最深。UVB，即中波紫外线，会导致晒伤，对维生素D的合成至关重要。UVC，即短波紫外线，能量最高，具有杀菌作用，但会被地球大气层完全吸收。

Discovered in 1933 by Walther Meissner and Robert Ochsenfeld, the Meissner effect is the expulsion of a magnetic field from a superconductor during its transition to the superconducting state. When a material is cooled below its critical temperature ([latex]T_c[/latex]) in the presence of a weak external magnetic field, it actively cancels all magnetic flux inside it, becoming a perfect diamagnet.

太阳能电池的核心是pn结，即p型和n型半导体材料之间的界面。该结在耗尽区产生内置电场。当具有足够能量的光子撞击半导体时，它们会形成电子-空穴对。电场将这些载流子分离，驱动电子向n侧移动，空穴向p侧移动，从而产生电压。