Sentence examples for hard base from inspiring English sources

The simplest screen for the projection of slides or motion pictures is, of course, a matte white surface, which may be on a hard base as in outdoor theatres or on a stretched cloth indoors.

The most usual type, called a basal cell carcinoma (or "rodent ulcer"), starts as a small nodule in the skin that gradually enlarges and breaks down to form an ulcer with a hard base and pearly, rolled edges.

In the presence of F−, the boronate ester, a "hard acid", strongly reacts with F−, a "hard base".

According to Pearson's classification, Cr III) and Cr VI) are categorized as a hard acid, and amine is classified as a hard base.

The compounds were then evaluated as additive in hard base bitumen in order to reduce the viscosity and increase the penetration.

Due to its high electronegativity and small ionic size, the fluoride ion is classified as a hard base, which has a strong affinity towards Al3+ which is classified as a hard acid, therefore Al3+ has good affinity towards F− ion.

Thus, reverse engineering the genome given the secure set is extremely hard based on the hardness of inverting one way functions.

Typical soft bases are iodide, thiocyanate, sulfide, and triphenylphosphine; whereas hard bases include hydroxide, fluoride, and many oxyanions.

Nevertheless, a surprising amount of factual information can be coordinated on the basis of preferential reactions of hard acids with hard bases and soft acids with soft bases.

This kind of behaviour has led to a classification of Lewis acids and bases into "hard" and "soft" categories; as a rule, hard acids react preferentially with hard bases and, similarly, soft acids react with soft bases.

The then environment minister Peter Garrett believed installing insulation batts was "not that hard" based on his own personal experience, an inquiry has heard.