Abstract: A wearable ballistic impact protection system detects impacts to a body. The system includes multiple sensors for detecting vibration. The sensed vibrations are converted to electrical signals which are filtered. Electronic components are provided to determine whether the filtered signal have frequency and amplitude characteristics of impact that cause injury to a body. Preferably, the sensors are Piezo-electric film sensing elements. Information regarding the extent of the impact and injuries to the body may be transmitted to a remote location so that medics or other personnel may be informed to the extent of injuries to the body so that they may provide medical assistance.

Abstract: A wearable ballistic impact protection system detects impacts to a body. The system includes multiple sensors 10L, 10R for detecting vibration. The sensed vibrations are converted to electrical signals which are filtered. Electronic components 15 are provided to determine whether the filtered signal have frequency and amplitude characteristics of impact that cause injury to a body. Preferably, the sensors 10L, 10R are Piezo-electric film sensing elements. Information regarding the extent of the impact and injuries to the body may be transmitted to a remote location so that medics or other personnel may be informed to the extent of injuries to the body so that they may provide medical assistance.

Abstract: An automated, computer-driven amino acid indexer for peptide synthesis uses programmed computer, a circuit board controller, and a combination of microtiter sample well trays, light emitting diodes to illuminate each sample well, and circuitry to control the illumination of the diodes. The apparatus simplifies technical difficulties present in large-scale laboratory syntheses of peptides by substantially reducing the time required for dispensing amino acids into sample trays and reducing the occurrence of error in the process to negligible levels in typical syntheses. A programmed, automated technique for synthesizing peptides is also provided.

Abstract: An apparatus for measuring insecticide activity. A chamber holds a plural of insects and a quantity of the insecticide to be tested. An exit is formed in the chamber so that insects escaping from the chamber pass through a detector to generate a signal. The signals are compared to other signals generated by the other insects passing the detector to determine the repellency of the insecticides.

Abstract: A semi-automatic critical point drying apparatus for the preparation of biological or organic specimens for examination thereof by scanning electron microscopy. In the preparation of such specimens, the specimen is placed in a chamber into which is introduced a transitional fluid, such as liquid CO.sub.2, which replaces the dehydrating liquid in the specimen as a part of the drying process. In critical point drying, the transitional fluid in the chamber is heated to elevate the chamber temperature and pressure above the critical point of the fluid. A five-way indicator valve replaces the manually adjustable valve of prior art apparatus for enabling the operator easily to control the cooling, filling, purging and bleeding operations of such a critical point drying apparatus.