摘要:
Halide ion-sensitive devices and methods for their use are described. The devices contain a halide ion-permeable overlayer which is superposed on a layer of silver halide and meets certain criteria of thickness and permeability and/or certain compositional criteria. The methods involve bringing a portion of a solution to be analyzed into contact with the halide ion-permeable overlayer and, within a selected time thereafter, measuring the difference in potential between the portion of solution and the silver halide layer.
摘要:
A device and a method are disclosed for determining ion activity in liquids by the use of electrodes, particularly comprising an electrode mounting frame and transport means for promoting ionic migration between electrodes in the frame. Preferably, such electrodes are ion-selective electrodes.
摘要:
A dual-polarization common aperture antenna having fully populated common aperture dual polarized arrays. The inventive antenna includes a first and second arrays of radiating slots disposed in a faceplate. The second array is generally orthogonal and therefor cross-polarized relative to the first array. The first array is waveguide fed and the second array is stripline fed. In the illustrative implementation, the first array and the second array share a common aperture. The common aperture is fully populated and each array uses the aperture in its entirety. The first and second arrays of slots are arranged for four-way symmetry. Each slot in the first array is a vertically oriented, iris-excited shunt slot fed by a rectangular waveguide and centered on a broad wall thereof. The second array is a standing wave array in which each slot is an air cavity backed slot fed by an inverted micro-stripline offset from a center thereof.
摘要:
A process for manufacturing a lead frame having a pad, inner leads, outer leads and dambars, the lead frame being coated with a film on the back surface of the pad, which includes the steps of preparing a lead frame having a pad, inner leads and outer leads; placing a polyamic acid film on the back surface of the pad without using adhesive; and thermally compressing the polyamic acid film by using a heat; generator, to form polyimide film and simultaneously adhere that to the polyimide film the back surface of the pad.
摘要:
This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities, each such emulsion layer containing an image dye-forming coupler wherein at least one, but not all, of the emulsion layers of the dye-forming unit contains the hydrolyzed or unhydrolyzed form of a benzazolium compound represented by formula (I): ##STR1##
摘要:
A shunt connected energy stabilizing system with isolation switching for providing stored energy to loads or to a utility or industrial electrical distribution system or source of electrical power. An energy backup and recovery system stores energy in a superconducting magnet and releases the energy to a real power/reactive power (VARs) generator which in turn delivers energy to either the loads or to both the loads and the source of electrical power. During periods of voltage sag or power outage, an isolation switch provide a means for isolating the loads from the source of power so that energy can be supplied to the loads only to provide "ride-thru". In effect, the isolation of the load sheds this load from the power system, thereby boosting the rest of the electrical distribution to a level so that other loads on the power system are not disturbed by the voltage sags. By supplying energy to the loads only, small superconducting magnets can be used thereby providing economic and size advantages. The isolation switch also provides a smooth transition from the real power generation to the VAR compensation mode, and vice versa. Additionally, the isolation switch can direct stored energy to both the electrical system and to the loads at the same time.
摘要:
An electric motor control with integral battery charger includes battery terminals (201) for connection to a battery (203). A boost converter circuit (111) is coupled to an armature winding (209) of the electric motor (117), and has an input (131) coupled to a power source (211). A buck converter circuit (105) is coupled to a field winding (207) of the electric motor (117), and an input (133) coupled to the power source (211). A controller (205), is coupled to the battery terminals (201) and the power source (211). The controller (205) couples a boost output (107) of the boost converter circuit (111 ) to the battery terminals (201) while a terminal voltage of the power source (211) is lower than a terminal voltage of the battery (203) measured at the battery terminals (201), and couples a buck output (107) of the buck converter circuit (105) to the battery terminals (201 ) while the terminal voltage of the power source (211) is higher than the terminal voltage of the battery (203).
摘要:
A photographic element which has a blue sensitive emulsion with broad blue spectral coverage and yet, good speed and low fog. The element has a blue sensitive silver halide tabular grain emulsion which has a tabularity of at least 25 sensitized with a dye of formula (I) and a dye of formula (II), wherein the formula (I) dye on the emulsion has a peak sensitization of between 400-445 nm and the formula (II) dye on the emulsion has a peak sensitization of between 446-500 nm: ##STR1## wherein: Z.sub.1, Z.sub.2, Z.sub.3 and Z.sub.4 independently represent the atoms necessary to complete a substituted or unsubstituted benzene or naphthylene;X, Y, X.sub.1 and Y.sub.1 are independently O, S, Se or MR.sub.5, provided that at least X or Y is O or NR.sub.5, where R.sub.5 is a substituted or unsubstituted alkyl or aryl;R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent H or a substituted or unsubstituted alkyl or aryl.
摘要:
A silver halide photographic element having a green sensitive layer the silver halide of which is sensitized by a combination of three sensitizing dyes of the formula I, II and III: ##STR1## wherein: each of the benzo-rings of I, II or III may be substituted or unsubstituted;each L is a substituted or unsubstituted methine; andR1 through R9 are substituted or unsubstituted alkyl or aryl.
摘要:
This invention provides methods for inhibiting the proliferation of brain or hepatic metastases, in vivo, by contacting the cells with lonidamine and radiation.