Abstract: The invention provides a multi-Vt vertical power device and a method of making the same. Through patterning a contact mask, a contact structure array having a shared trench gate structure may be formed, and different traversal gaps between an edge of a contact portion of a second conductivity type and an edge of a trench may be formed in the contact structure array. As such, multi-Vt vertical states may be implemented for storing information. The present invention allows making a multi-Vt vertical power device having different Vt's to be capable to store information without additional process steps. Therefore, with respect to the present invention, the process is simple, cost is low, and application field is wide; number of Vt varies to store multi-bit digital information or analog information in the power device; the built-in multi-Vt power MOSFET and IGBT are adapted not only for the high power applications but also for information storage.

Abstract: The present disclosure discloses a tobacco leaf foliar spraying substance for reducing harmful ingredients in cheroot, a method for reducing carcinogenic components in flue-cured tobacco leaves and flue-cured tobacco shreds. The tobacco leaf foliar spraying substance contains a lotus leaf extract, the harmful chemical ingredients comprise N-nitrosonornicotine, 4-(N-methyl-nitrosamine)-1-(3-pyridinyl)-1-butanone, N-nitrosoanabasine and N-nitrosoanatabine. Foliar spraying is performed on a fertile field by using the lotus leaf extract before tobacco leaves are harvested and modulated, which not only significantly promotesagronomic characters and economic traits of tobacco and alleviates tobacco leaf browning but also effectively reduces harmful chemical ingredients unique to tobacco leaves, such as nitrosamine and nicotine.

Abstract: The techniques described herein may provide deadlock detection and prevention with improved performance and reduced overhead over existing systems. For example, in an embodiment, a method for improving performance of software code by preventing deadlocks may comprise executing software code in a computer system comprising a processor, memory accessible by the processor, and program instructions and data for the software code stored in the memory, the program instructions executable by the processor to execute the software code, logging information relating to occurrence of deadlock conditions among threads in the executing software code, detecting occurrence of deadlock conditions in the software code based on the logged information, and modifying the software code or data used by the software code so as to prevent occurrence of at least one detected deadlock condition.

Abstract: The techniques described herein may provide deadlock detection and prevention with improved performance and reduced overhead over existing systems. For example, in an embodiment, a method for improving performance of software code by preventing deadlocks may comprise executing software code in a computer system comprising a processor, memory accessible by the processor, and program instructions and data for the software code stored in the memory, the program instructions executable by the processor to execute the software code, logging information relating to occurrence of deadlock conditions among threads in the executing software code, detecting occurrence of deadlock conditions in the software code based on the logged information, and modifying the software code or data used by the software code so as to prevent occurrence of at least one detected deadlock condition.