One of the factors that can affect to the quality of lubricantion is metal particle content due to friction of engine parts.Metal particle in lubricanting oil could damage the engine parts, so it is neccessary to reduce the metal particle content which mingled in lubricant oil.The experiment was conducted in laboratory scale using power magnetic ty
We consider two ways of inserting a key into a binary search tree: leaf insertion which is the standard keychron m4 mouse method, and root insertion which involves additional rotations.Although the respective cost of constructing leaf and root insertion binary search trees trees, in terms of comparisons, are the same in the average case, we show th
The mechanism and action of a new retractable barbneedle for drug darts are described.This dart needle is particularly successful in obviating unnecessary flight reactions andtrauma in darted animals, and facilitates hemi procharger the complete injection of the drug dose before the barb is retracted and the dart is dislogded from the animal.The wh
In this paper, the straight-wall-arch structure in the rock medium 27 inch cruiser board is taken as the research object, and the high-pressure plane charge loading test technology is adopted to study the anti-explosion performance of different types of structures under the explosion loading.Three types of structures, which are individually built w