Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Jian-hua QIN"'
Publikováno v:
Journal of Big Data, Vol 11, Iss 1, Pp 1-16 (2024)
Abstract Infrared small target detection is a challenging task. Morphological operators with a single structural element size are easily affected by complex background noise, and the detection performance is easily affected by multi-scale background
Externí odkaz:
https://doaj.org/article/0bd36e035f7f4742a9961eac5fca9226
Autor:
Rong-li XU, Tian-kui GUO, Zhan-qing QU, Ming CHEN, Jian-hua QIN, Shan-bo MOU, Huan-peng CHEN, Yue-long ZHANG
Publikováno v:
工程科学学报, Vol 44, Iss 3, Pp 451-463 (2022)
When a shale oil reservoir contains a mass of clay minerals, the salinity of formation water can reach up to 4.786×103 mol·m−3 and the formation water and low salinity fracturing fluid create significant osmotic pressure during the fracturing pro
Externí odkaz:
https://doaj.org/article/e926196b826242efb1ed1c83d982b564
Publikováno v:
Molecules, Vol 27, Iss 15, p 4690 (2022)
Dioxygen (O2) is an environmentally benign and abundant oxidant whose utilization is of great interest in the design of bioinspired synthetic catalytic oxidation systems to reduce energy consumption. However, it is unfortunate that utilization of O2
Externí odkaz:
https://doaj.org/article/06c41175656a4b20b46c7c1305ee16a8
Publikováno v:
Chinese Medical Journal, Vol 131, Iss 13, Pp 1625-1627 (2018)
Externí odkaz:
https://doaj.org/article/b8610729e23b4e91a50e2e7acf08fe38
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2483-o2483 (2009)
The title compound, C4H2N4S4, lies about a twofold rotation axis situated at the mid-point of the central S—S bond. Each of two thiadiazole rings is essentially planar, with an rms deviation for the unique thiadiazole ring plane of 0.0019 (7) Å. C
Externí odkaz:
https://doaj.org/article/ffc690f28e0a4d9596b42dda9a780111
Autor:
Li-Ping Xue, Jian-Hua Qin
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1790-o1790 (2009)
Crystals of the title compound, C8H9IO2, were obtained from a dimethyl sulfoxide solution of 2,6-dimethoxybenzoic acid and iodobenzene diacetate under a nitrogen atmosphere at 353 K. In the crystal structure, molecules are linked by weak C—H...π i
Externí odkaz:
https://doaj.org/article/cc4de7a0ec374dd793e03038d8bbd4b8
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 5, Pp m507-m507 (2009)
In the title compound, [AgCl(C2H2N2S2)]n, the AgI ion has a distorted tetrahedral geometry, defined by two S atoms of two symmetry-related 1,3,4-thiadiazolium-2-thiolate ligands and two chloride ions. The AgI ions are bridged into a two-dimensional n
Externí odkaz:
https://doaj.org/article/0a8b59d2f5304237abe8857d5c5268bb
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 4, Pp m415-m415 (2009)
In the title compound, {[Cu(C5H4N4S4)2(C2H3N)2](ClO4)2·C2H3N}n, the CuII atom occupies a crystallographic inversion centre and is six-coordinated by six N atoms of four symmetry-related 2,2′-(methylenedithio)bis(1,3,4-thiadiazole) (L) ligands and
Externí odkaz:
https://doaj.org/article/745550e917174c509ea86d67d4a31c12
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 1, Pp m80-m81 (2009)
In the title compound, [Cu(NO3)2(C6H6N4S4)]n, the CuII atom, occupying a crystallographic inversion centre, is six-coordinated by two N atoms of two 2,2′-[1,2-ethanediylbis(thio)]bis[1,3,4-thiadiazole] ligands in trans positions, and four O atoms f
Externí odkaz:
https://doaj.org/article/ee426c04b2734fa78b5e4772eca3f6e5
Autor:
Jian-Hua Qin, Jian-Ge Wang
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 1, Pp o131-o131 (2009)
The anions and cations of the title compound, C5H9N32+·2Cl−, are connected by two chloride-bridged three-centered N—H...Cl hydrogen bonds into a three-dimensional network. The aromatic rings are not involved in stacking interactions.
Externí odkaz:
https://doaj.org/article/9248df28cc1f44e6b126afa6828814b0