نتایج جستجو برای: limiting draw ratio
تعداد نتایج: 613593 فیلتر نتایج به سال:
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...
Phosphate (P) is an important nutrient potentially limiting for primary productivity, yet, we currently know little about the relationship between growth rate and physiological response to P limitation in abundant marine Cyanobacteria. Thus, the aim of this research was to determine how variation in growth rate affected the physiology of marine Synechococcus WH8102 and CC9311 when growing under...
Category Ratio Scale Category External Internal Abstract Nominal Scale Category External InternalNominal Scale Category External Internal Oridinal Scale Magnitude Equal Interval Absolute Zero Abstract Ratio Scale Nominal Scale Ratio Scale Ratio ScaleRatio Scale Nominal Scale Ratio Scale Ratio Scale (A) Shape→File Size (B) Length→File Type (C) Length→File Size Excel Word Draw
This open access book explores how children draw god around the world. It looks at children’s drawings in a large variety of cultural and religious
Imagine a hopeful mother, desperate after many failed attempts to become pregnant. She consults a fertility clinic and decides to undergo the invasive and costly process of in vitro fertilization (IVF). The procedure is more than successful—she finds herself pregnant with quadruplets. At less than five feet tall and with a petite frame, she will not be able to carry all four fetuses to term. He...
Deep drawing of cylindrical shapes with high limiting drawing ratio (LDR) values is relatively difficult. Annealing is a further operation, which in turn adds costs and consumes significantly time to the forming process. In the present work, cylindrical cups from brass sheet were made with only limited anneal during few steps, but having LDR of 9 that is about 2 times higher than previous works...
The synthesis of a high-melting temperature semiconductor in a low-temperature fiber drawing process is demonstrated, substantially expanding the set of materials that can be incorporated into fibers. Reagents in the solid state are arranged in proximate domains within a fiber preform. The preform is fluidized at elevated temperatures and drawn into fiber, reducing the lateral dimensions and br...
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