PURPOSE:To prevent heating of a turbine when the turbine is stream-blown in a test run by interposing a valve on an auxiliary steam pipe for introducing steam from an auxiliary steam source, and introducing auxiliary steam to the steam turbine through the valve. CONSTITUTION:Steam from an auxiliary steam source 31 is controlled by an auxiliary steam header 32 under a constant pressure, and the ste...

In order to solve handling problems which arise during use of a mammograph, the x-ray tube of the mammograph is carried by the end of an arm which rotates about an axis at right angles to the arm. The other elements of the mammograph are carried by another arm which is placed in a plane parallel to the plane of rotation of the first arm and rotates about the same axis. It is shown that, by moving ...

The gamma camera equipment according to the invention comprises two detector heads 10, 30 which are capable either of being combined for an examination of the whole-body type, in which the two detector heads cooperate, or of being separated for a tomography type examination, only one head 10 being used, while the other 30 is in a stand-by position but continues to be fed with current. To strengthe...

To improve the preparation of the thread ends for splicing, the pneumatic holding devices (15', 16'), which hold the thread ends and, if appropriate, prepare them, have switchable thread-guide elements (49', 50'). The switchable thread-guide elements act on the position of the thread ends in the pneumatic holding devices and also on the air flow.

Ethylene/1,5-hexadiene copolymers and higher interpolymers having structural characteristics that provide improved physical properties and processability. The ethylene polymers of the invention have narrow molecular weight distribution and/or narrow composition distribution and/or a low cluster index. The 1,5-hexadiene comonomer is predominantly incorporated as a cyclic ring in the polyethylene ba...

The invention relates to an X-ray apparatus with a polychromatic X-ray radiator (1) for producing a primary beam (3) of low cross section, an energy-resolving measuring detector arrangement (D) for detecting the scattered radiation produced by elastic scattering processes in the primary beam (3) with several detector elements (D0...D7) which are arranged on rings concentric to the primary beam an...

First sensors measure physical quantities correlated with the heat release value of a fire source, and second sensors measure physical quantities correlated with the amount of the product of burning. At least a pair of one first sensor and one second sensor are arranged in a zone to be monitored. A first threshold of high sensitivity and a second threshold of low sensitivity are set at the first s...

PURPOSE:To obtain the title luminescent layer which gives a multicolor EL, element of high luminance by forming a thin ZnS:TbMnF film for the luminescent layer under specified conditions in the manufacture of the luminescent layer of a multicolor EL element made by combining prescribed filters with an EL element having a thin ZnS:TbMnF film as its luminescent layer. CONSTITUTION:In the manufacture...

PURPOSE:To obtain the title element which gives white light of high luminance by superposing a specified SrS:Ce layer that emits bluish green light and a specified SrS:Eu, Ce layer that emits red light one on the other in two or more layers to form a luminescent layer. CONSTITUTION:An SrS:Ce layer having a Ce concentration of 0.05-0.2at% and an SrS:Eu, Ce layer having a Ce concentration of 0.05-0....

A process for preparing low-density flexible polyurethane foams obtained, in the absence of expanding agents of chlorofluoroalkane type, by the polycondensation of an organic polyisocyanate with at least one polyol of equivalent weight exceeding 50 and functionality equal to or greater than 2, in the presence of an expanding system comprising water and dimethyl carbonate (DMC).

A guidance system for an unmanned transporting vehicle which runs along a guide track. The guide track is composed of a belt-shaped light reflective material and laid out on a floor or the like. The unmanned transporting vehicle has two rows of photodetectors longitudinally arranged thereon forwardly of the front wheel. Since the two rows of the photodetectors are spaced apart from each other with...

During the manufacture of semiconductor components, the surface quality of the semiconductor chips as well as their relative position with respect to a housing, in particular the bonding pads between the chip and the connection elements in the housing, must be monitored. For that purpose, the semiconductor components are lighted by means of a lighting device and observed by means of a camera that ...