نتایج جستجو برای: pbx
تعداد نتایج: 558 فیلتر نتایج به سال:
The benefits of using insensitive high explosives (IHE) like PBX 9502 (9502) have been well documented [1]. These desirable features come at a price. The reaction zone is longer for IHEs, thus making them more nonideal. In real world applications, this translates into significant performance problems, such as problems with detonation wave spreading. The speed of detonation propagation is affect...
Development of the vertebrate eye is dependent on multiple tissue interactions and distinct sets of transcription factors and signalling molecules. The latter are thought to be FGF8 and BMP4, proteins secreted from the neural plate to induce lens formation in the overlying ectoderm. Here we show that the Pbx transcription factor plays a crucial role in this process, as it is required for FGF8 e...
<sec>Polymer bonded explosive (PBX) is a kind of composite material with highly filled molding particles (normally more than 95%) and small quantity binders (less 5%). The effective detection internal cracks in PBX great significance evaluating structural integrity safety reliability .</sec><sec>Ultrasonic phased array imaging methods show advantages potential detecting crack ...
Multipotential stem cells throughout the developing central nervous system have common properties. Among these is expression of the intermediate filament protein nestin and the brain fatty acid binding protein (B-FABP). To determine if common mechanisms control transcription in CNS stem cells, the regulatory elements of these two genes were mapped in transgenic mice. A 257 basepair enhancer of ...
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