Hasil untuk "cs.SC"

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CrossRef Open Access 2025
Dynamic Evolution and Drivers of Modernization of Harmonious Coexistence Between Humans and Nature: A Case Study in Nanping Counties (Cities and Districts)

Chuanmao Hua, Weiping Hua, Baoyin Li

This study builds an evaluation index system for the modernization of harmonious coexistence between man and nature from 2014 to 2024, including three criteria for ecological environmental protection, green economic transformation, and enhancement of people’s livelihood, to help Nanping City’s sustainable development and build a “Pilot Demonstration Zone for the Modernization of Harmonious Coexistence between Humans and Nature”. Despite the 2020 coronavirus pandemic, the study area’s modern development of harmonious coexistence between humans and nature increased from 2014 to 2024, narrowing the development gap between counties. The coupling coordination degree of the criterion layer is “high in the middle, low in the east and west, high in the south and low in the north”. Under the spatial spillover effect, counties with higher development stages radiate driving force on surrounding counties with lower development stages. In 2014, 2019, and 2024, resource agglomeration, social civilization progress, economic development, and government policy regulation drove harmonious coexistence between humans and nature in Nanping City.

CrossRef Open Access 2009
Die Suboxometallate A<sub>9</sub>MO<sub>4</sub> (A = Rb, Cs; M = Al, Ga, In, Fe, Sc) 

Constantin Hoch, Johannes Bender, Andreas Wohlfarth et al.

AbstractSingle crystals of the suboxometallates A9MO4 (A = Rb, Cs;M = Al, Ga, Fe, Sc) were prepared by reaction of stoichiometric mixtures of M2O3 with alkali metals and their oxides A2O. They crystallize in the tetragonal Cs9InO4 structure type (space group I4/mcm) and contain ortho‐oxometallate(III) anions in a metallic matrix. Cesium can be partially substituted by rubidium, as shown for phases of arbitrary compositions (RbxCs1–x)Cs8GaO4 (x = 0.57) and (RbxCs1–x)Cs8InO4 (x = 0.87). The substitution leads to statistical occupation of one crystallographic position. The same holds for substitutions of M, as in Cs9(AlxIn1–x)O4 (x = 0.51) and Cs9(ScxIn1–x)O4 (x = 0.68).

CrossRef Open Access 1994
Cs<sub>4</sub>[Sc<sub>6</sub>C]Cl<sub>13</sub> und Cs<sub>4</sub>[Pr<sub>6</sub>(C<sub>2</sub>)]I<sub>13</sub> — zwei Beispiele für das fehlende Bindeglied bei der Verknüpfung der Baueinheiten [M<sub>6</sub>Z]XX

Holger M. Artelt, Thomas Schleid, Gerd Meyer

AbstractCs4[Sc6C]Cl13 (tetragonal, I41/amd; a = 1 540,5(4); c = 1 017,9(7) pm; c/a = 0,661; Z = 4; R = 0,038; Rw = 0,026 und Cs4[Pr6(C2)]I13 (a = 1 804,9(3); c = 1 259,5(3) pm; c/a = 0,698; R = 0,106; Rw = 0,068) werden bei der metallothermischen Reduktion von ScCl3 bzw. PrI3 mit Caesium in Gegenwart von Kohlenstoff in verschweißten Tantalampullen in Form von grünschwarzen bzw. blauschwarzen, messingglänzenden Einkristallen erhalten. Die weitgehend isotypen Kristallstrukturen enthalten isolierte [Sc6C]‐ bzw. [Pr6(C2)]‐Cluster, die von 18 Halogenid‐Ionen (X−, 12 Xi und 6 Xa; X = Cl bzw. I) umgeben sind. Die Verknüpfung erfolgt gemäß dem Motiv [M6Z]XXXX (M = Sc bzw. Pr; Z = C bzw. C2) und stellt damit ein noch unbekanntes Verknüpfungsmuster für Verbindungen der Zusammensetzung Ax[M6Z]X13 dar, das jenem der [TiO6]‐Oktaeder in der Anatas‐Struktur von TiO2 entspricht.

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