Abstract: Disclosed are a Ni-based catalyst for an unsteady-state trace CO, methanation reaction, and a preparation method thereof. The Ni-based catalyst according to the disclosure is composed of an active metal Ni and an oxide support, wherein the oxide support is composed of a rare earth oxide (REO) and an inert oxide; and the rare earth oxide and the inert oxide exhibit an excellent synergistic effect to ensure both high reactivity and weak adsorption and desorption interference. The Ni-based catalyst has a mass percentage of the active metal Ni of 40 wt. % to 90 wt. %, and a mass percentage of the REO of 0.5 wt. % to 20 wt. %, a balance being the inert oxide. The preparation method of the disclosure is a co-precipitation method, including a direct mixing for co-precipitation, a constant-speed dropwise addition for co-precipitation, and a microchannel mixing for co-precipitation.

Abstract: Critical resources are identified within a computer system such as operating system files, drivers, modules and registry keys that are used to bootstrap the computer. During a successful bootstrap, these resources are saved into persistent storage during the bootstrap phase. Changes to critical resources are monitored and these resources are backed up if they are changed. Upon computer system failure, steps of identifying the type of failure and an analysis of its root cause are optionally performed. A user is presented with a bootstrap menu and critical resources necessary to bootstrap the computer are retrieved from persistent storage and saved into their appropriate locations. A successful bootstrap is then performed of the computer system in order to recover from the failure.

Abstract: A computer network includes endpoint computers and a file history server with a file history database. An endpoint agent in an endpoint computer detects file access events in the endpoint computer and generates file activity data for storage in the file history database. The file activity data may include file access event information of file access events and file information of files involved in the file access events. The endpoint agent may consult the file history database to locate a duplicate of a damaged file in another endpoint computer, and restore the damaged file using the duplicate. A backup and restore program may also consult the file history database to determine whether or not to make a backup copy of a file involved in a file access event.

Abstract: A computing device is capable of automatically detecting malware execution and cleaning the effects of malware execution using a malware repair module that is customized to the operating features and characteristics of the computing device. The computing device has software modules, hardware components, and network interfaces for accessing remote sources which, collectively, enable the device to restore itself after malware has executed on it. These modules, components, and interfaces may also enable the apparatus to delete the malware, if not entirely, at least partially so that it can no longer execute and cause further harm. The malware repair module is created from a detailed malware behavior data set retrieved from a remote malware behavior database and then modified to take into account specific operating features of the computing device. The repair module executes on a repair module execution engine and the effects of the malware on the device are minimized.

Abstract: Scanning of the shadow copy instead of the hard disk of a computer (using an accessing interface instead of the file system interface or an API of the operating system) enables the scanning software to access any files that might have been locked by the malware on the hard disk and avoids root kits. Files cannot be locked because a disk parser is used instead of the operating system or normal file system interface. It is possible for malware to change or reinfect files during the scanning and cleaning process. Files on the hard disk in existence at the time a manual scan is begun are scanned and backed up to the cache if changed during scanning. Dropped malware is removed by reverting the hard disk to the shadow copy once scanning and cleaning has been performed. Even if a watchdog drops a file during the scanning and cleaning process (because it detects that other malware components are being affected) these dropped files will be removed.

Abstract: A method for detecting malware in a computer that employs a production operating system during normal use is provided. The method includes activating on the computer a first operating system while the production operating system is dormant and ascertaining at least a portion of the production operating system that would be involved in booting up the computer if the production operating system had been activated instead. The method further includes scanning, while the first operating system is activated and while the production operating system is dormant, the portion of the production operating system. The method further includes neutralizing, while the first operating system is activated and while the production operating system is dormant, the malware responsive to the scanning.

Abstract: Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20.

Abstract: Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20.

Abstract: Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20.

Abstract: Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20.