Functional languages are renowned for their mathematical tractability, clarity of expression, abstraction powers, and more. There are problem domains, however, that still present real challenges to functional languages. One notoriously difficult problem domain is graph algorithms. Graph algorithms have been studied for a long time with conventional von Neumann languages. The emphasis has primar...

a new method for increasing ldr in deep drawing is application of anti-lock braking system (abs) on blank holder. in this method, instead of applying a constant force on blank and control the metal flow, the abs system holds and releases the blank several times (20 to 50 times) which results increasing ldr. this study investigates the effect of different parameters of abs on improving the condi...

A procedure for the microdetermination of dihydroxyacetone (DHA) in biological fluids has been reported by us (1). Because of its relative time-consuming manipulations, a simpler procedure is sought in sacrifice of accuracy for brevity. This paper describes a new method which is based on the reaction between a-hydroxycarbonyl compounds and pyridine nucleotides to form addition compounds (2). Wi...

Abstract   Fiber-metal laminates (FMLs) are new type of composite materials which could improve defects of traditional composites in ductility, formability, impact and damage tolerance. Drawing behavior of a thermoplastic based FML was investigated consisting of glass-fiber reinforced polypropylene composite laminate and aluminum AA1200-O as the core and skin layers, respectively. The effects o...

Radiocarbon is produced within minerals at the earth’s surface (in situ production) by a number of spallation reactions. Its relatively short half-life of 5730 yr provides us with a unique cosmogenic nuclide tool for the measurement of rapid erosion rates (>10–3 cm yr–1) and events occurring over the past 25 kyr. At SUERC, we have designed and built a vacuum system to extract 14C from quartz wh...

One of the main research directions in CAD/CAM machining area is the reducing of machining time. The feedrate scheduling is one of the advanced techniques that allows keeping constant the uncut chip area and as sequel to keep constant the main cutting force. They are two main ways for feedrate optimization. The first consists in the cutting force monitoring, which presumes to use complex equipm...

During work on coenzyme A (CoA), a method for the liberation of pantothenic acid from the coenzyme was worked out (1). The method involves the use of a combination of two enzymes; namely, intestinal phosphatase and an enzyme extractable from acetone powder of bird liver (chicken (2), duck, or pigeon). This procedure proved the most efficient pretreatment to liberate bound vitamin under conditio...

Blank size and form represent one of the main sources of variation in lithic assemblages. They reflect economic properties of blanks and factors such as efficiency and use life. These properties require reliable measures of size, namely edge length and surface area. These measures, however, are not easily captured with calipers. Most attempts to quantify these features employ estimates; however...