Abstract Hydrophobic metakaolin-based flat sheet membrane was developed via phase inversion and sintering technique modified through 1H,1H,2H,2H-perfluorooctyltriethoxysilane grafting agents. The prepared characterized by different techniques such as XRD, FTIR, SEM, contact angle, porosity, mechanical strength. Their results indicated that the wettability, structural, properties of confirm suit...

The bistability of embedded elements provides a natural route through which to introduce reprogrammability elastic meta-materials. One example this is the soft morphable sheet, in bistable that can be snapped up or down, are within sheet. state sheet then programmed by snapping particular resulting different global shapes. However, attempts leverage programmability have been limited tendency fo...

To realize the roller forming process of curved edges aluminium alloy auto-body closure panels, a numerical simulation method is proposed for sheet with adhesive in flat variable curvature. Firstly, motion calculated by discrete curvature curve method. Secondly, FEM-SPH coupling established to simulate interaction between layer and sheet. Subsequently, model was constructed finite element calcu...

In this paper, using theory of sheets, the deflection of suspended diaphragm has been obtained under uniform and circular loading. This type of diaphragm, unlike other diaphragms, has a central support which is recommended to be used in MEMS applications. The relationship between diaphragm deflection and static analysis of this diaphragm enjoys a great significance in investigating and understa...

We introduce soft folding, a new interactive method for designing and exploring thin-plate forms. A user specifies sharp and soft folds as two-dimensional(2D) curves on a flat sheet, along with the fold magnitude and sharpness of each. Then, based on the soft folds, the system computes the three-dimensional(3D) folded shape. Internally, the system first computes a fold field, which defines loca...

PURPOSE To investigate long-term ultrastructural changes in the retina after internal limiting membrane (ILM) peeling through the examination of morphologic changes 3 years after vitrectomy in cynomolgus monkeys. DESIGN Laboratory investigation. METHODS Pars plana vitrectomy was performed, followed by ILM peeling, in 2 primate eyes. Ultrastructural changes were investigated using light micr...

Reproducible dry and wet transfer techniques were developed to improve the transfer of large-area monolayer graphene grown on copper foils by chemical vapor deposition (CVD). The techniques reported here allow transfer onto three different classes of substrates: substrates covered with shallow depressions, perforated substrates, and flat substrates. A novel dry transfer technique was used to ma...