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相关概念视频

Seasoning of Wood01:15

Seasoning of Wood

185
Seasoning of wood is a crucial process aimed at reducing and stabilizing the moisture content within the wood to prevent future shrinkage, structural damage, or aesthetic issues once the wood is used in construction. Wood naturally swells when it absorbs moisture and contracts as it dries.
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
185
Response Surface Methodology01:16

Response Surface Methodology

288
Response Surface Methodology (RSM) is a collection of statistical and mathematical techniques used to develop, improve, and optimize processes. It is particularly valuable when many input variables or factors potentially influence a response variable.
The process of RSM involves several key steps:
288
Drying Shrinkage01:21

Drying Shrinkage

161
When hardened concrete is exposed to air with a relative humidity of less than 100 percent, it begins to lose the free water within its capillaries. As this water evaporates, the water initially adsorbed onto the calcium silicate hydrates migrates towards these now empty spaces and eventually evaporates as well. Over time, as more water leaves, the volume of the concrete decreases, a phenomenon known as drying shrinkage.
A portion of this drying shrinkage can be reversed; if the concrete is...
161
Factors Affecting Workability01:24

Factors Affecting Workability

124
The workability of concrete is a critical characteristic that influences the ease of mixing, handling, and finishing the concrete. It is affected by several factors including water content, aggregate properties, and admixtures like air entrainment. Water plays a fundamental role as it lubricates the concrete mix, facilitating easier movement and placement. However, the water requirement varies depending on the texture and shape of aggregates. Finer particles and angular, rough-textured...
124
Factorial Design02:01

Factorial Design

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Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
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Curing Methods01:26

Curing Methods

123
Concrete members with a small surface-to-volume ratio are cured by oiling and moistening the forms before casting the concrete member. These forms can be left in place for a prolonged period to prevent moisture loss, and can be wetted if made of a material suitable for wetting. If the forms are removed early, the concrete member is moistened and covered with polythene sheets to maintain moisture. For large horizontal concrete surfaces exposed to dry weather, a temporary covering is suspended...
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相关实验视频

Updated: Sep 20, 2025

Author Spotlight: Optimization of Processing Technology for Tiebangchui with Zanba Based on CRITIC Combined with Box-Behnken Response Surface Method
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使用Taguchi和复合可取性方法优化干燥.

Wael El-Kolaly1,2,3, Tarek Kh Abdelkader1,2,4, Yunfeng Wang1,2

  • 1Solar Energy Research Institute, Yunnan Normal University, Kunming, China.

Journal of the science of food and agriculture
|May 27, 2025
PubMed
概括

使用热干燥机和超声波预处理优化干燥,显著提高了干燥效率和质量. 最佳条件涉及特定的温度,空气速度和切片厚度,以提高的保存.

关键词:
塔古奇优化的优化干燥动力学 干燥动力学热干燥机 热干燥机多目标优化多目标优化的是一种菌.

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科学领域:

  • 食品科学与技术 食品科学与技术
  • 农业工程 农业工程
  • 生物技术是生物技术.

背景情况:

  • 类很容易腐烂,对热量很敏感,因此需要优化干燥过程.
  • 有效的干燥对于保持的营养和身体完整性至关重要.

研究的目的:

  • 使用热干燥机优化的干燥动力学和质量属性.
  • 评估不同操作条件和预处理方法对干的影响.

主要方法:

  • 使用Taguchi L16直角设计来评估干燥温度,空气速度,切片厚度和预处理 (控制,漂白,超声波,化学).
  • 采用主要组件分析和复合可取性函数,用于多目标优化.
  • 测量的反应包括干燥速率 (DR),特定水分蒸发速率 (SMER),有效扩散系数 (Deff),颜色变化 (ΔE),再水合率 (Rh),总黄含量 (TFC) 和总含量 (TPhC).

主要成果:

  • 超声波预处理,结合特定的干燥参数 (70°C,4米/秒,1厘米厚度),产生了最高的干燥率.
  • 干燥温度和空气速度是影响干燥速度的关键因素,而切片厚度则主导了有效的扩散系数.
  • 最佳条件 (60°C,4米/秒,4厘米厚度,超声波) 最大化了补水率和颜色保留.

结论:

  • 过程优化显著提高了干的干燥效率和产品质量.
  • 超声波成为最有效的预处理方法来改善干燥结果.
  • 这项研究为优化热干燥的优化提供了一个框架,以便更好地保存.