9-Chlorofluorene reacted with aromatic aldehydes and ketones in the presence of phase transfer catalyst, giving the Darzens condensation epoxy products.
The structural studies of the telluronium saltrformation between dibutyl telluride and secondary (?)-bromo compounds and the use of the obtai- ned salts for the olefination of carbonyl compounds were reported.
This paper introduces the theory of continuous lattices to the study of the Hutton unit interval I(L). some theorems related to I(L) are pithily proved. A kind of intrinsic topologies is applied to refining the topolo...This paper introduces the theory of continuous lattices to the study of the Hutton unit interval I(L). some theorems related to I(L) are pithily proved. A kind of intrinsic topologies is applied to refining the topology of I(L),and a new fuzzy unit interval,called the H(λ) unit interval,is defined.Based on the H(λ) unit interval the H(λ)-complete regularity is introduced.Also,the theory of. H(λ)-stone-ech compactifications is展开更多
This letter deals with the standard of the normal subgroups of linear group (n≥3) over a ring called the Ore strong right ring. which contains commutative rings and the rings of product of division as a special case....This letter deals with the standard of the normal subgroups of linear group (n≥3) over a ring called the Ore strong right ring. which contains commutative rings and the rings of product of division as a special case. Thus it has extended J. S.展开更多
Let X be normed linear space, 8 (X)={x∈X|‖x‖ = 1}. The author tried to introduce the concept of the function of convexity for any BANACH space, as J. A. Clarkson had introduced the concept of modulus of convexity f...Let X be normed linear space, 8 (X)={x∈X|‖x‖ = 1}. The author tried to introduce the concept of the function of convexity for any BANACH space, as J. A. Clarkson had introduced the concept of modulus of convexity for uniformly convex space.展开更多
The complete miscible solid solution with a minimum freezing point (-50.75℃; 26.88% para-) of the ortho- and para-chlorotoluene has been proved in this paper by many methods as the thermal analysis method, the X-ray ...The complete miscible solid solution with a minimum freezing point (-50.75℃; 26.88% para-) of the ortho- and para-chlorotoluene has been proved in this paper by many methods as the thermal analysis method, the X-ray matter phase analysis, the fractional crystallized separation method and the solidified separation method of solid solution, and by the Fel’dman’s experiential productivity formula compared with the theoretical productivity formula which was obtained from the solidified separation according to the solid solution phase diagram. Therefore, the international official conclusion of simple eutectic type phase diagram of ortho- and para-chlorotoluene mixture does not agree with the experimental facts.The powder diffraction files of ortho- and para-chlorotoluenes are given in this paper.展开更多
文摘9-Chlorofluorene reacted with aromatic aldehydes and ketones in the presence of phase transfer catalyst, giving the Darzens condensation epoxy products.
基金The product of 23-27 were prepa(?)ed by hydrolysis after usual work up as described in the text.
文摘The structural studies of the telluronium saltrformation between dibutyl telluride and secondary (?)-bromo compounds and the use of the obtai- ned salts for the olefination of carbonyl compounds were reported.
基金Project supported by the National Natural Science Foundation of China
文摘This paper introduces the theory of continuous lattices to the study of the Hutton unit interval I(L). some theorems related to I(L) are pithily proved. A kind of intrinsic topologies is applied to refining the topology of I(L),and a new fuzzy unit interval,called the H(λ) unit interval,is defined.Based on the H(λ) unit interval the H(λ)-complete regularity is introduced.Also,the theory of. H(λ)-stone-ech compactifications is
文摘This letter deals with the standard of the normal subgroups of linear group (n≥3) over a ring called the Ore strong right ring. which contains commutative rings and the rings of product of division as a special case. Thus it has extended J. S.
文摘Let X be normed linear space, 8 (X)={x∈X|‖x‖ = 1}. The author tried to introduce the concept of the function of convexity for any BANACH space, as J. A. Clarkson had introduced the concept of modulus of convexity for uniformly convex space.
文摘The complete miscible solid solution with a minimum freezing point (-50.75℃; 26.88% para-) of the ortho- and para-chlorotoluene has been proved in this paper by many methods as the thermal analysis method, the X-ray matter phase analysis, the fractional crystallized separation method and the solidified separation method of solid solution, and by the Fel’dman’s experiential productivity formula compared with the theoretical productivity formula which was obtained from the solidified separation according to the solid solution phase diagram. Therefore, the international official conclusion of simple eutectic type phase diagram of ortho- and para-chlorotoluene mixture does not agree with the experimental facts.The powder diffraction files of ortho- and para-chlorotoluenes are given in this paper.
