3D printing provides access to complex multilevel architectures, though the capability routinely print and integrate structures of controlled porosity is limited. Herein, grayscale digital light projection a polymerization-induced phase separation ink introduced directly functionally graded porous within single layer from same formulation. The structural properties materials printed are tuned a...

In this work, we explore a new method for controlling fluid transport rate on paper-based analytical devices that enables both the delay and acceleration of flow. The delays were incorporated by wax printing linear patterns variable width within flow channel melted to penetrate paper. manner, surface tension decreases while its contact angle increases, causing pressure drop along path reduces c...

In recent years, the open microchannel has drawn increasing interest, but severe local dryout limited heat transfer capability of flow boiling. It was anticipated that nanostructures with exceptional capillary wicking abilities would overcome this problem. study, blade-like CuO were created in copper microchannels to experimentally investigate water Experiments carried out nanostructured (NMCs)...

A novel type of Janus polyvinylidene fluoride/deacetylated cellulose acetate (PVDF/D-CA) nanofiber membrane with multifunctional application is successfully fabricated by sequential electrospinning. The morphology, chemical composition, surface wettability, oil–water separation performance, and unidirectional liquid transmission capability have been systematically analyzed. It has asymmetric we...

High-performance electronic systems require efficient heat dissipation devices. Vapor chambers (VCs) are practical thermal solutions for lightweight portable electronics that have limited space. A functional VC requires an interior wick to sustain the capillary circulation of condensed fluid back heated region. The performance can be indexed by ratio liquid permeability effective pore size stru...

A heat-pipe-based multimode thermal rectifier, easily scalable for advanced energy management in industrial applications (e.g., waste heat recovery, solar application and building management), is proposed horizontal transport. The rectifier composed of a copper tube loop having superhydrophilic section superhydrophobic section. rectification effect achieved by the differences sections surface e...

Enhancing the wicking/evaporative functionality of materials by surface nano/microstructuring is a key approach in creating advanced technologies based on liquid–vapor phase change, particularly field power generation for substantial fuel savings and reducing global greenhouse gas pollution. Despite technological importance, capillary flow liquid undergoing intensive evaporation hot nano/micros...

When tendon injuries present a too large damage extension, the conventional treatment options do not result, so new prosthetic device needs to be developed partially replace tendon. Therefore, in this study, different braided textile structures based on polypropylene (PP) and poly (ethylene terephthalate) (PET) multifilament yarns were developed, using technology-based technique, order mimic fi...

background : cement industry has many process units. basically all of these units can be considered as a source of noise. since noise pollution is defined based on its offensive hearing effects, the importance of the noise sources depends directly on the number of workers in the unit.   materials and methods : an experimental study has been done at tehran cement factory to recognize and analyze...