نتایج جستجو برای: metallic elements
تعداد نتایج: 313794 فیلتر نتایج به سال:
A detailed analysis of literary sources on the strengthening solid and glued wooden elements rectangular cross-section was carried out. Based analysis, purpose objectives research are given.
 It is possible to distinguish two methods manufacturing reinforced structures: first method a passive using reinforcement, where reinforcement used in bending without prestressing; second active, pres...
Most of the commercially available anti-infective agents are organic molecules. In fact, though, during pioneering times modern medicine, at beginning 20th century, several inorganic compounds transition metals were used for medicinal application, to date, only a small number drugs in clinical practice. Beyond metals, metalloids—or semimetals—offer rich chemistry between that metallic and non-m...
A spot that flickers at 16 Hz between two luminance levels (on a grey surround) has an appearance of metallic lustre, which we call 'monocular lustre'. Binocular and monocular lustre were measured in comparable conditions by a rating procedure, and both were reported only when the light and dark values of the flickering (or binocularly fused) spot straddled the surround luminance, so that the s...
A positive response from a metal detector when run over an area of the body is a strong positive indicator of the presence of a metallic object. If there is a possibility of a buried metallic foreign body this positive finding should not be ignored.
The disordered atomic structure of metallic glasses gives rise to unique mechanical and physical properties such as strength and elasticity, and are being considered for a wide range of applications. However, to understand and ultimately control these properties, it is important to study their disordered structure. Seen on the macroscale, metallic glasses are isotropic and homogeneous. On the m...
Konrad Zuse built the Z1, a mechanical programmable computing machine, between 1935/36 and 1937/38. The Z1 was a binary floating-point computing device. The individual logical gates were constructed using metallic plates and interconnection rods. This paper describes the design principles Zuse followed in order to complete a complex calculating machine, as the Z1 was. Zuse called his basic swit...
If strange quark matter is stable in small lumps, we expect to find such lumps, called “strangelets”, on Earth due to a steady flux in cosmic rays. Based on recent model predictions for this flux, we find that strangelets corresponding to gaseous elements (noble gases, N, and O) accumulate in the atmosphere at high concentration. Metallic and semimetallic strangelets accumulate in suprisingly h...
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