摘要:
The circuit arrangement includes a measuring device having an output circuit connected to one input of a comparator, and including a voltage divider whose tap is connected to the other input of the comparator. A storage capacitor is connected to the tap of the voltage divider and to such other input of the comparator and provides a reference voltage bearing a fixed relation to, but always lower than, the signal voltage of the measuring device in the quiescent state of the arrangement. A bias voltage may be applied to the tap of the voltage divider. When the measuring device responds to a test object, the voltages at the comparator inputs are so switched that the reference voltage is held above the signal voltage until the measuring device returns to the quiescent state. In the quiescent state, the signal voltage exceeds the reference voltage and the comparator, changing back to the zero state, restores the initial condition of the two voltages. A switching arrangement is provided which, when the reference voltage falls below a predetermined minimum value, and if the arrangement has not switched to the operating state, provides a corresponding logic signal.
摘要:
A device for treating milk contained in a container is disclosed. The device comprises at least one heat source that comprises an air bath, a device for setting the container in motion and exposing the container to the heat source for a defined period of time, and a cooling source for cooling the milk.
摘要:
An improved automatic loading tray comprising a frame having lateral side rails and a pair of longitudinal cross-bar arrangements spaced from each other and secured to the lateral side rails for reciprocal movement therealong, each cross-bar arrangement including two laterally spaced substantially parallel bars, an inner and outer bar, said inner bar nearer said other cross-bar arrangement than said outer bar, and means to limit maximum separation between said two spaced bars, rotatable spacer means for positioning between said spaced bars, said rotatable means being of substantially uniform non-circular or non-square cross-section looking downwardly thereon for causing the bars to abut said means to limit their maximum separation when said rotatable means is positioned between said bars in a first position and for causing said bar to loosely seat between said means to limit maximum separation when said rotatable means is in a second position, and means to rotate said rotatable spacer means.
摘要:
The invention relates to a method for treating infectious diseases which are elicited by viruses which are pathogenic to humans comprising the step of administering an amphiphilic nucleoside-phosphonoformic acid derivative having an esterified or unesterified carboxyl group, preferably of a nucleoside-glycerol-(hydroxycarbonyl)-phosphonate, as an active compound.
摘要:
An enhancer has been located in the upstream region of the major immediate early gene of human cytomegalovirus and has been isolated, which enhancer is more active than that from SV40 and has a wide host cell spectrum. Hence, it is suitable for eukaryotic expression systems wherein it can be incorporated upstream or downstream of the structural gene or of the regulation region.
摘要:
A process is disclosed for replicating viruses of the HIV type which cause immune deficiency, in which process lymphocytes are employed which have been transformed with herpesvirus saimiri.
摘要:
An improved binder, of one step construction manufactured from a single sheet of material comprising front and back covers, a backing disposed therebetween joining the covers and forming a continuation of the plane of the adjacent covers a plurality of fastening means, each fastening means formed integrally from one portion of one of said covers and forming a continuation of the plane of said cover at the juncture of the fastening means and the cover thereby presenting a cut-out portion in the cover corresponding to the shape of the fastening means when a part of the fastening means is lifted from the plane of the binder cover, each of said fastening means comprising a strap and tab, the strap forming a continuation of the plane of the cover at one end, the tab being disposed at the other end of the strap and forming a continuation of the plane thereof and of a width at the juncture with the strap to define therewith at least one locking shoulder, a plurality of slots disposed in said binder, one slot for each fastening means, through which slot each fastening means is inserted for positioning exterior of the binder cover, for insertion through the cut-out portion in the cover to be positioned within the interior of the binder and be locked and secured therein by at least one locking shoulder of said tab engaging cover portions on either side of the cut-away portion.
摘要:
A building management system (1) for the control of plural actuators (10) arranged in a distributed manner, comprised of a central control unit (2) and at least one actuator (10) controlled by the central control unit (2), wherein the actuator (10) has a control device (11) which is formed to receive control commands from the central control unit (2) and to operate the actuator (10) in dependence upon these control commands, and a memory part (13) for storing function-relevant information. In accordance with the invention the memory part (13) is separate or separable from the control device (11).
摘要:
A method for treating milk, wherein milk is short-term heated in a container. At least during the heating, the container is set in motion in such a way that a milk film forms on the inner wall of the container. A device for carrying out the method is likewise described (FIG. 1).
摘要:
Diagnostically relevant polypeptides and fusion proteins comprising an amino acid sequence which originates from cytomegalovirus and corresponds to a region of the major DNA-binding protein or of the C-terminal region of the tegument protein pp150 fused with at least one further fragment from another antigenic protein of cytomegalovirus are disclosed. The major DNA-binding protein is encoded by the reading frame UL57. The poly-peptides and fusion proteins according to the invention can be used in an advantageous manner in diagnostic tests and methods for the detection of IgM antibodies against cytomegalovirus.