We experimentally study the drying of loosely packed wet glass beads at low initial water content. The rate is found to decrease start, corresponding decreasing period controlled by vapor diffusion, followed a deviation in from diffusion limited evaporation. propagation front associated with sharp saturation gradient identified through both image analysis and magnetic resonance imaging techniqu...

Direct metal SLS processes use a high power laser beam to selectively fuse fully metallic powder to directly produce functional metal components or tooling. As a thermal dynamic process, it inevitably causes thermal stresses, stress-induced deformations and cracking. Understanding these is very important in controlling residual stresses and stress-induced deformations. In this research, the res...

Abstract Before use, timber must have reduced moisture content. Kiln drying causes cracking risk. This study aims to evaluate the risk of during beech wood samples using response surface methodology. Additionally, we aim develop an empirical model that describes critical tensile stress early stages and air parameters commonly used in kiln-drying schedules for timber, specifically, effects dry-b...

This paper investigates the induced stresses in circular single deck roofs floating on seismically excited storage tanks. Equations of motion are derived using variational principle. Response of deck floating roofs is evaluated for two different classes of ground motions; near-source and long-period far-field records. Besides time histories and frequency contents for a specific tank, peak value...

Abstract—Lyophilization, also called freeze-drying, is an important dehydration technique mainly used for pharmaceuticals. Food industry also uses lyophilization when it is important to retain most of the nutritional quality, taste, shape and size of dried products and to extend their shelf life. Vacuum-Induced during freezing cycle (VI) has been used in order to control ice nucleation and, con...

BACKGROUND The current typical drying methods for red ginseng are sun drying and hot-air drying. The purpose of this study was to investigate drying characteristics of red ginseng by using far-infrared drying. METHODS The far-infrared drying tests on red ginseng were conducted at two drying stages: (1) high temperature for 24 h drying and (2) low temperature drying until the final moisture co...

Abstract The applicability of Additive Manufacturing for operational parts expands with the availability new materials specific properties. For elastomeric components produced Fused Filament Fabrication, challenges associated printing process due to nature material are faced. This paper investigates effect under-extrusion in this regarding feeding system and, predominantly, moisture thermoplast...

The encapsulation efficiency (EE%) and structural changes within the Anthraquinones-encapsulated casein micelles (CM) powders were evaluated in this study. For purpose, anthraquinone powder extracted from Aloevera, its freeze-dried (FDP) whole leaf Aloe vera gel (WLAG) has been encapsulated CM through ultrasonication prior to spray dying produce nanocapsules: (CMAQP), (CMFDP) Whole aloe (CMWLAG...

Cd and Zn have been shown to interact antagonistically or synergistically in various plants. In the present study of dwarf polish wheat (DPW)roots, Cd uptake was inhibited by Zn, and Zn uptake was inhibited by Cd, suggesting that Cd and Zn interact antagonistically in this plant. A study of proteomic changes showed that Cd, Zn, and Cd+Zn stresses altered the expression of 206, 303, and 190 prot...

A fascinating class of patterns, often encountered in nature as wiggling cracks on rocks, dried out fields and tectonic plates, is produced by the fracture of solids 1. Here we report the observation and modeling of an unusual type of patterns consisting of spiral cracks within fragments of a thin layer of drying precipitate. We find that this symmetry-breaking cracking mode arises naturally no...