منابع مشابه
The Ordering of Points on a Curve. Part IV
For simplicity, we adopt the following rules: n denotes an element of N, V denotes a subset of the carrier of En T , s, s1, s2, t, t1, t2 denote points of E n T , C denotes a simple closed curve, P denotes a subset of the carrier of E T , and a, p, p1, p2, q, q1, q2 denote points of E 2 T . Next we state several propositions: (1) For all real numbers a, b holds (a − b) = (b − a). (2) Let S, T b...
متن کاملThe Ordering of Points on a Curve . Part IV 1
s 2 , t, t 1 , t 2 are points of E n T , C is a simple closed curve, P is a subset of E 2 T , and a, p, p 1 , p 2 , q, q 1 , q 2 are points of E 2 T. We now state several propositions: (1) For all real numbers a, b holds (a − b) 2 = (b − a) 2. (2) Let S, T be non empty topological spaces, f be a map from S into T , and A be a subset of T. If f is a homeomorphism and A is connected, then f −1 (A...
متن کاملPart I : Part Ii : Part Iii : Part Iv
The theory of stick-slip is developed, based on the concept of a static and dynamic coefficient of friction. The dynamic coefficient is assumed to be independent of displacement and to depend wholly on normal stress across the surface. It is also assumed to be velocity-independent. The theory predicts that the stress drop during stick-slip is independent of machine stiffness. The displacement d...
متن کاملPurity and Identification of Solids Using Melting Points
Class-obtained melting points were used to create a melting point diagram of naphthalene and biphenyl. The eutectic point was estimated by extrapolation to be at 45 mole percent naphthalene. Unknown “A” was determined to be benzophenone by mixed melting point method. Introduction Melting points are used to help determine the purity and identification of solids. A melting point is the temperatur...
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ژورنال
عنوان ژورنال: J. Chem. Soc., Trans.
سال: 1878
ISSN: 0368-1645
DOI: 10.1039/ct8783300273