ABSTRACT We examined the ability of snow molds to grow at temperatures from -5 to 30 degrees C and to influence the growth of ice through assays for ice nucleation and antifreeze activities. Isolates of Coprinus psychromorbidus (low temperature basidiomycete variant), Microdochium nivale, Typhula phacorrhiza, T. ishikariensis, T. incarnata, and T. canadensis all grew at -5 degrees C, whereas Sc...

Myxomycetes, the true slime molds, are highlighted in research and teaching that emphasizes various stages of the life cycle as experimental models. Past and current phylogenetic classifications of Myxomycetes on the tree of life are presented. Life cycle stages are illustrated, described, and discussed. Simple laboratory demonstrations and experiments are described that include spore germinati...

The investigation presented in this paper is a unique assemblage of ceramic casting molds discovered at one the sites from Bohai period (698–926) territory southern Russian Far East. main research aim to recognize probable traces metal alloys cast molds. Nondestructive pXRF and SEM-EDS methods were used as instruments for detecting expected alloys’ chemical components. As result, elements Pb, S...

Recently, with the increase in application of UHSS plates automobiles, service life existing molds is being shortened, and directed energy deposited type 3D printing technology considered as a way to extend life. In this study, order improve cold molds, wear characteristics parts using composition systems were analysed, possibility practical was estimated through evaluation shear molds.</br&...

Cellular slime molds are enigmatic and fascinating organisms whose life cycles of both single and multicellular stages have long charmed and perplexed biologists (1). Increasingly, cellular slime molds—of which the most widely studied is Dictyostelium discoideum—have been used as models to study the maintenance of cooperation, but viewed from this perspective, there are puzzles to resolve. Two ...

Yeasts, molds, bacteria, actinomycetes, algae, and fungal spores were screened for their ability to degrade aflatoxin. Some molds and mold spores partially transformed aflatoxin B(1) to new fluorescing compounds. Only one of the bacteria, Flavobacterium (aurantiacum?) NRRL B-184, removed aflatoxin from solution. Both growing and resting cells of B-184 took up toxin irreversibly. Toxin-contamina...

This paper describes algorithms for automated design of rotary-platen type of multi-shot molds for manufacturing multi-material objects. The approach behind our algorithms works in the following manner. First, we classify the given multi-material object into several basic types based on the relationships among different components in the object. For every basic type, we find a molding sequence ...

A novel method for fabricating nanoimprint lithography (NIL) molds for T-shaped gates (T-gates) for high speed transistors is proposed and demonstrated. This method uses NIL, low pressure chemical vapor deposition and reactive ion etching processes, and avoids costly electron beam lithography and high accuracy alignment technology. Using the T-gate nanoimprint molds fabricated by this novel met...

We investigated the effect of nitrogen fixing Azotobacter bioinoculant on the mycelial growth and the rate of substrate utilization by Pleurotus eous. The synergistic or antagonistic role of the microorganism during dual culturing with the mushroom or the competitor molds Trichoderma viride, and Trichoderma reesi was studied. Azotobacter was inhibitory to the molds, which are competitive to the...

Mold Shape Deposition Manufacturing (Mold SDM) is a Solid Freeform Fabrication technique for producing complex shaped fugitive wax molds. A variety of castable polymer and ceramic materials have been used to make parts from these molds. This paper describes the Mold SDM method and an automated mold building machine based on a commercial CNC mill. Process steps, material selection and equipment ...