Abstract: A natural biopreservative for a flour product, a preparation method therefor and an application thereof. The natural biopreservative for the flour product is prepared by mixing lactic acid bacteria, distiller's yeast, an edible culture medium, and water, and performing fermentation, wherein, in parts by weight, 0.5-5 parts of the lactic acid bacteria, 0.5-5 parts of the distiller's yeast, 90-130 parts of the edible culture medium, and 90-130 parts of water. The natural biopreservative for a flour product of the present invention is prepared by fermentation using common lactic acid bacteria, distiller's yeast and edible culture medium, the raw materials are readily available and the preparation process is simple. When the biopreservative is applied to the production of the flour product, secondary or even multiple times of fermentation is not needed, the use method is simple, and the shelf life of the flour product is extended.

Abstract: Current sensing devices that are capable of surviving harsh ambient environment of ocean worlds, such as Jupiter and Saturn moons are disclosed. The described devices can meet 300 Krad radiation requirements and can survive at cold temperatures down to ?184° C. Exemplary implementations of the constituent circuits of the devices are presented. A scheduling algorithm to perform various measurement by the disclosed current sensing devices is also described.

Abstract: Current sensing devices that are capable of surviving harsh ambient environment of ocean worlds, such as Jupiter and Saturn moons are disclosed. The described devices can meet 300 Krad radiation requirements and can survive at cold temperatures down to ?184° C. Exemplary implementations of the constituent circuits of the devices are presented. A scheduling algorithm to perform various measurement by the disclosed current sensing devices is also described.

Abstract: Example methods, apparatus and articles of manufacture to selectively provide cached and presently compiled applications are disclosed. An example method includes receiving a request for an application from a device, querying a cache of pre-compiled applications based on the request for the application, if a pre-compiled version of the requested application is found in the cache, sending the pre-compiled requested application to the device; and if a pre-compiled version of the requested application is not found in the cache, thereupon compiling the requested application, and sending the compiled requested application to the device.

Abstract: Example methods, apparatus and articles of manufacture to selectively provide cached and presently compiled applications are disclosed. An example method includes receiving a request for an application from a device, querying a cache of pre-compiled applications based on the request for the application, if a pre-compiled version of the requested application is found in the cache, sending the pre-compiled requested application to the device; and if a pre-compiled version of the requested application is not found in the cache, thereupon compiling the requested application, and sending the compiled requested application to the device.

Abstract: A bump proof lock has stationary part and movable part in lockable sliding contact with each other. The stationary part has first passages and a driver pin slidably disposed in each first passage. The movable part has: A key way for receiving a key with key shank. Second passages arranged in pair wise communication with first passages. A key pin slidably disposed in each second passage. Each key pin has a pre-determined length such that the lengths define a unique key pin spatial profile. One end of each key pin is in sliding contact with the key shank and another end of each key pin is in slidable contact with its corresponding driver pin forming a local key-driver pin pair and a global key-driver contact spatial profile. Numerous key-driver pin pairs are made of magnets attracting each other causing the pairs to resist separation under a mechanical shock.