Abstract: A method for communicating messages in a multiple communication protocol network is disclosed. A first message is received at a first signaling adapter. The first message is based on a first communication protocol. A second message is received at a second signaling adapter. The second message is based on a second communication protocol. The first message is converted from the first communication protocol to a generic protocol, and the second message is converted from the second communication protocol to the generic protocol. The first message and the second message are received at a signaling adapter interface. The first signaling adapter and the second signaling adapter are detachable from the signaling adapter interface. The first message and the second message are sent to a network component.

Abstract: The time, difficulty, and expense of running DNA sequencing gels is substantially reduced by running the DNA sequence in a minigel of approximately 8.times.11 cm at a reduced electrophoretic voltage and without preheating the buffer solution in contact with the gel. The image produced from the sequence gel or autoradiograph is then scanned with a CCD line camera. The pixel map of the autoradiograph image is then magnified using software techniques within the computer so that it is displayed on the CRT screen at an increased scale permitting easy visual separation between the DNA bands.

Abstract: Disclosed are the DNA sequences of probes specific for Plasmodium vivax and the methods by which they were obtained. These nucleic acid sequences proved useful in detection of malaria in man caused by P. vivax by nucleic acid hybridization assays. The high sensitivity of these assays and the ease with which they can be performed enables them to be used for analyses of blood and other tissues of vertebrates and the invertebrates.

Abstract: A gas-liquid contact system for absorption of gaseous contaminants in an absorptive liquid where contact is attained by a controlled flow relationship between the gas and the liquid forming a fluidized liquid mass for intimate contact between the two.

Abstract: An attitude control system for a three-axis controlled spacecraft (1) in which the location of thrusters causes significant cross-coupling torques. A thruster command conditioning electronics module (TCCEM) (3) is positioned between the conventional roll, pitch, and yaw loop controllers (41-43) and the thrusters (61-63). The TCCEM (3) converts spacecraft-axis-based torque requirement signals (TDX, TDY, TDZ) emanating from the loop controllers (41-43) into scalar quantities (UL, UM, UN) that are input to thruster modulators (51-53) that turn on one or more thrusters of the thruster pairs (L,M,N). The TCCEM (3) causes the spacecraft (1) attitude to be adjusted as commanded by the torque requirement signals (TDX, TDY TDZ) despite the presence of the cross-coupling. Two embodiments are illustrated: a working embodiment in which cross-coupling torques are produced about two axes (Y,Z), and a more general embodiment in which cross-coupling torques are present about all three axes (X,Y,Z).

Abstract: Mechanical oscillations of a mechanism containing a stepper motor, such as a solar-array powered spacecraft, are reduced and minimized by the execution of step movements in pairs of steps, the period between steps being equal to one-half of the period of torsional oscillation of the mechanism. Each pair of steps is repeated at needed intervals to maintain desired continuous movement of the portion of elements to be moved, such as the solar array of a spacecraft. In order to account for uncertainty as well as slow change in the period of torsional oscillation, a command unit may be provided for varying the interval between steps in a pair.