Abstract:
An electron amplifier device is provided which comprises a substrate (10) having a plurality of vias extending between opposing faces. An electrically conductive layer (20) is formed on at least one of the faces, and a secondary electron emission layer (22) is formed on the conductive layer.
Abstract:
Apparatus and methods for electrospinning and/or electrospray are disclosed. The apparatus and methods are provided for electrospinning of fibre, or deposition of droplets on a surface by electrospraying. The apparatus comprises: a band tensioned between first and second rollers and curved around the rollers, an electric field generator for providing an electric field between an electrospinning zone at the first roller and a counter electrode, and a bath for containing liquid arranged to wet the band or regions of the band as it passes around the second roller. The band is arranged to transport liquid from the bath to the electrospinning zone for the production of fibres in said zone. The electric field generator may be arranged to provide an electric field between the counter electrode and the surface of the band where it is curved around the first roller.
Abstract:
The band 30 moves about a roller 20 within an immersion bath 40 and a 2nd roller 10. An electrostatic field is established between the second roller 10 and a counter electrode. The fibres are preferably removed by means of airflow. The preferred apparatus also includes means for cleaning the belt 30, and depositing biological or charged material. The apparatus can be used for electrospinning of nanofibres 50 or the production of charged droplets.
Abstract:
A method of manufacturing a component formed of parts capable of being separated for reassembly around another component. The process starts by taking separated, e.g., rod (3) and cap (5), forgings and coining or forging them together prior to machining. The mating surfaces of the forgings are formed with a ridge-groove or a dimple/lug-recess configuration giving them a self-locating ability. After machining, the forgings are fractured along the original division to obtain two uniquely matched surfaces that need no further processing before being reassembled, e.g, to form a connecting rod for an internal combustion engine.
Abstract:
A method of manufacturing a component formed of parts capable of being separated for reassembly around another component. The process starts by taking separate, e.g., rod (3, 3') and cap (5, 5') forgings and coining or forging them together prior to machining. The mating surfaces of the forgings are formed with a ridge-groove (9) or a dimple/lug-recess (12) configuration giving them a self-locating ability. After machining, the forgings are fractured along the original division to obtain two uniquely matched surfaces that need no further processing before being reassembled, e.g., to form a connecting rod for an internal combustion engine.
Abstract:
A motion platform for use in a simulator comprising linear slides 20, 30 providing surge and sway and a rotary table 40 providing yaw. Payload carrying platform 100 is mounted on the rotary table 40 via three bell cranks 56, 57, 58 to provide heave, pitch and roll.
Abstract:
A new route to the solvents and intermediates cyclooctanol and cyclooctanone via cyclooctyl formate is disclosed. Cyclooctyl formate may be made by acylating cyclooctene with formic acid, preferably without a catalyst, the better conversion and simplified procedure allowing the formate to be obtained at a fraction of the cost of the corresponding acetate.