Additive manufacturing is expected to transform and upgrade the traditional foundry industry realize integrated rapid low-cost development of high-performance components with complex shapes. The additive technology commonly applied in casting mold preparation (fusible molds, sand molds/cores ceramic cores) mainly includes selective laser sintering (SLS) binder injection three-dimensional printi...

A heterogeneous design of mechanical metamaterial enables digital stiffness programmability. The prototype is composed an elastomer matrix containing diamond-shaped cavities that are selectively confined along their diagonals by semi-rigid plastic beam inserts. Unit-cell perturbations caused insert placement or removal reshape the global constitutive relation, whose lower and upper bounds corre...

A thermally fusible softwood lignin was directly isolated by a solvolysis of cedar wood chips with a mixture of polyethylene glycol 400 (PEG 400) and sulfuric acid. Its fusibility was found to be due to a PEG moiety introduced into the lignin by the solvolysis. The lignin was easily formed into fibers by melt-spinning at temperatures ranging from 145 to 172 o C without any modification. The lig...

A new experimental method of the determination of the evaporating fields F, based on Fowler-Nordheim theory is described. This method fits to any materials both refractory and fusible. Especially this method is effective for the thermo-field microprotrusions. The microprotrusions have usually the radii of curvature r-10-100 A and one or some atoms on the top and well-known methods of Fev determ...

The human chemokine receptor (CKR) genes CCR2, CCR6, CCR7, CCR9, CCR10, CXCR4, and CXCR5 harbor one or two introns. CCR7, CCR9, CCR10, and CXCR5 introns, (but not CCR2, CCR6, and CXCR4 introns) encompass retrovirus-like inserts with the characteristics of SINEs (short interspersed nuclear elements) up to 300 nucleotides (nt) long. Other characteristic elements of the retroviral genome, such as ...

The article deals with the rationalization of production shaped inserts for casting rotors. theoretical part describes characteristics rotor casting, die technology, analysis existing technology inserts. main is focused on proposed technological process production, comparison and process. concludes a technical economic benefit solution evaluation work. Rationalization has its justification in d...

The results of an experimental study the combined enamelling technique are presented – enamel with granulation. Original inserts, decorated granules various colours and sizes, were obtained, use which expands possibilities decorative enamelling. It is shown that different degrees fusion grain on prepared base gives artistic effects. Spherical grains, qualitatively adhered to ground, give a more...

A microchannel heat exchanger effectively evacuates from a confined space. This paper attempts to gain insight into the combinatorial repercussions of simultaneously coupling two factors that affect microchannel’s performance, which channel size and micro-insert complexity are main contributors. With water as working fluid, an ANSYS-based numerical analysis was carried out for distinct sizes, 1...

   Prolonged residence of drug formulation in the nasal cavity is important for the enhancing intranasal drug delivery. The objective of the present study was to develop a mucoadhesive in-situ gelling nasal insert which would enable the reduced nasal mucociliary clearance in order to improve the bioavailability of metoclopramide hydrochloride. Metoclopramide hydrochloride is a potent antiemetic...