نتایج جستجو برای: air density
تعداد نتایج: 607238 فیلتر نتایج به سال:
Cylindrical density depressions generated by femtosecond laser pulses filamenting in air for different energy depositions is investigated numerically, using a set of hydrodynamic equations. The evolution profile calculated temperature elevations, the results indicate that gas hole getting shallower and wider with increasing elevations. A simulation propagation inside low-density channel implies...
FIG lo-Erect chest radiograph showing a large pneumoperitoneum with air under both diaphragms. The right hemidiaphragm is raised. Dilated air filled loops of bowel are projected overthe liver (arrows)-both sides ofthe bowel wall can be seen (Rigler's sign). Summary Diagnostic quality Alignment of bones Bone margins and density Cartilage and joints Soft tissues Bowel gas pattern Pneumoperitoneum...
BACKGROUND Relatively few studies have examined the association between air pollution and stroke mortality. Inconsistent and inclusive results from existing studies on air pollution and stroke justify the need to continue to investigate the linkage between stroke and air pollution. No studies have been done to investigate the association between stroke and greenness. The objective of this study...
An efficient, durable and low cost air-cathode is essential for a high performance metal-air battery for practical applications. Herein, we report a composite bifunctional catalyst, Co3O4 nanoparticles-decorated carbon nanofibers (CNFs), working as an efficient air-cathode in high performance rechargeable Zn-air batteries (ZnABs). The particles-on-fibers nanohybrid materials were derived from e...
Non-aqueous Li-air batteries have been intensively studied in the past few years for their theoretically super-high energy density. However, they cannot operate properly in real air because they contain highly unstable and volatile electrolytes. Here, we report the fabrication of solid-state Li-air batteries using garnet (i.e., Li6.4La3Zr1.4Ta0.6O12, LLZTO) ceramic disks with high density and i...
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