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strpos: Returns the numeric position of the first occurrence of needle (second string) in the haystack (first string). This function may return 0 when the needle is found at the begining of the haystack, so it might be misinterpreted as false value by another comparative operator.
String functions are used in computer programming languages to manipulate a string or query information about a string (some do both).. Most programming languages that have a string datatype will have some string functions although there may be other low-level ways within each language to handle strings directly.
The use of a needle is optional; where desired it may be fitted to the end of the syringe filter. A syringe filter generally consists of a plastic housing with a membrane that serves as a filter. The fluid to be purified may be cleaned only by being pushed through the filter from syringe, it cannot be drawn into the syringe through the filter ...
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The a needle lies across a line, while the b needle does not. In probability theory, Buffon's needle problem is a question first posed in the 18th century by Georges-Louis Leclerc, Comte de Buffon: [1] Suppose we have a floor made of parallel strips of wood, each the same width, and we drop a needle onto the floor.
As opposed to low dead space syringes, high dead space syringes are conventional needle and syringe designs. The term "high dead space" refers to the fluid remaining within the needle and between the syringe hub and the plunger. This space can be as high as 84 micro liters in conventional syringes. [2]
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