Abstract: Grease filtration systems suitable for use on the rooftop of a building are disclosed. Methods of making and using grease filtration systems are also disclosed.

Abstract: A device for inspecting microscopic objects. A plurality of LEDS is arranged in an array underneath a lens. Some of the LEDS are lighted and some of the LEDS are unlighted. A computer is in control of the LED array. The computer turns on selected LEDS from the array to form the lighted LEDS. Also, the computer turns off selected LEDS from the array to form the unlighted LEDS. The lighted LEDS form a pattern of lighted LEDS underneath the lens. In a preferred embodiment, the lens is connected to a computer controlled camera and the microscopic objects are microscopic crystals. In another preferred embodiment UV LEDS are utilized and illuminate crystals from above. In another preferred embodiment UV LEDS are utilized to illuminate a loop of a Hampton pin to locate a crystal in the loop of a Hampton pin for the purpose of x-ray crystallography.

Abstract: Grease filtration systems suitable for use on the rooftop of a building are disclosed. Methods of making and using grease filtration systems are also disclosed.

Abstract: A cold-gas coolant nozzle which limits the amount of turbulence induced in the flow of cold gas due to interaction with ambient air by creating a intermediate temperature buffer zone between the cold gas and the ambient air.

Abstract: The invention provides an improved nozzle and method for delivering a coolant stream to a location in an ambient atmosphere.

Abstract: The invention provides a method of performing x-ray crystallography on samples by using a robot to select the target sample, to position the sample for x-ray crystallography, and to deposit the sample, all without transferring the sample to another device, such as a goniometer. This method allows high throughput, automated crystallography, thereby providing a high volume of samples to be tested while lessening the need for human intervention.

Abstract: A focusing device for x-radiation is disclosed. The device is fabricated from a block of optical material. The block can be monolithic or formed of multiple pieces joined together. A groove is cut into the monolithic block preferably in the form of a “V” groove. The active surfaces of the groove are finished and coated so that they are optically reflective, or can be coated with material forming a multilayer surface so that they are optically diffractive. The active surfaces thereby form two side-by-side mirrors which are preferably at right angles to one another. Means for deforming the groove are provided. The focal length of x-radiation impinging upon the groove is defines as a function of controlled deformation of the groove.