Nuclear energy is a competitive and environmentally friendly low-carbon energy source. It is seen as an important avenue for satisfying energy demands, responding to the energy crisis, and mitigating global climate change. However, much attention has been paid to achieving the effective treatment of radionuclide ions produced in nuclear waste.
View Article and Find Full Text PDFGraphite (Gr)-based lithium-ion batteries with admirable electrochemical performance below -20 °C are desired but are hindered by sluggish interfacial charge transport and desolvation process. Li salt dissociation via Li-solvent interaction enables mobile Li liberation and contributes to bulk ion transport, while is contradictory to fast interfacial desolvation. Designing kinetically-stable solid electrolyte interphase (SEI) without compromising strong Li-solvent interaction is expected to compatibly improve interfacial charge transport and desolvation kinetics.
View Article and Find Full Text PDFA macrocyclic tetra-imidazolium salt () based on quinoxaline was prepared and characterized. The recognition of to nitro compounds was investigated by fluorescence spectroscopy, H NMR titrations, MS, IR spectroscopy, and UV/vis spectroscopy. The results displayed that was able to effectively differentiate -dinitrobenzene from other nitro compounds via the fluorescence method.
View Article and Find Full Text PDFInhalation of crystalline silica causes silicosis, the most common and serious occupational disease, which is characterized by progressive lung inflammation and fibrosis. Recent studies revealed the anti-inflammatory and anti-fibrosis role of Caveolin-1 (Cav-1) in lung, but this role in silicosis has not been investigated. Thus, this study evaluated Cav-1 regulatory effects in silicosis.
View Article and Find Full Text PDFIn this paper, the development of a five-stage solid-state linear transformer driver (LTD) is described. Each stage consists of eight compact pulse generating modules and a magnetic core. The pulse generating modules contain a multilayer-ceramic-capacitor-based pulse-forming network (PFN) and an insulated-gate bipolar transistor (IGBT) switch array, as well as magnetic switches, which are used to speed up the pulse front.
View Article and Find Full Text PDFA solid-state pulse-forming network (PFN) module was designed using multilayer ceramic capacitors (MLCCs). In addition, an all-solid-state pulse generator was fabricated with a Blumlein line that consisted of two PFN single lines and an insulated gate bipolar transistor (IGBT) switch array. This generator was integrated on printed circuit boards (PCBs).
View Article and Find Full Text PDFA novel anthracene-based tetraperimidine hexafluorophosphate was prepared, and its structure was determined through X-ray analysis, HRMS as well as H and C NMR spectroscopy. In the cationic moiety of , two (-ethylperimidinyl-CH)NCH- arms were attached to the 9- and 10-positions of anthracene. In addition, compound was used as a chemosensor to research the ability to recognize Cr through fluorescence and UV titrations, HRMS, as well as H NMR and IR spectroscopy.
View Article and Find Full Text PDFFour bis-benzimidazolium salts, 1,4-bis[1'-(-R-benzimidazoliumyl)methyl]-2,3,5,6-tetramethylbenzene 2X ( : R = ethyl, X = PF; : R = picolyl, X = Br; : R = benzyl, X = Br; and : R = allyl, X = Br), and their three -heterocyclic carbene (NHC) Pd(II) and Ag(I) complexes, (), (), and (), as well as one anionic complex (), have been synthesized and characterized. Complex adopts a funnel-like type of structure, complex adopts a cyclic structure, and complex is an open structure. In the crystal packing of -, one-dimensional polymeric chains and two-dimensional supramolecular layers are formed via intermolecular weak interactions, including hydrogen bonds, π-π interactions, and C-H···π contacts.
View Article and Find Full Text PDFEight metal complexes, {[Co(bibim-4)2(H2O)2](NO3)2}n (1), {[Cu(bibim-4)2(NO3)](NO3)}n (2), [Co(bibim-3)(TP)]n (3), [Zn2(bibim-3)]2(OAc)4] (4), [Co(bibim-2)(NO3)2]n (5), [Zn(bibim-4)(NO3)2]n (6), [Zn(bibim-4)(OAc)2]n (7) and [Cd(bibim-4)(NO3)2(DMF)]n (8) (bibim-2 = 1,2-bis(benzimidazol-l-yl)ethane, bibim-3 = 1,3-bis(benzimidazol-l-yl)propane, bibim-4 = 1,4-bis(benzimidazol-l-yl)butane and TP = terephthalate) have been prepared by means of the self-assembly of Co(II), Cu(II), Zn(II) or Cd(II) salts, dibenzimidazolyl bidentate ligands bearing alkanyl linkers and terephthalic acid. These complexes are structurally characterized by X-ray diffraction analyses. In complexes 1 and 2, 2D network layers with macrometallocycles are formed via metal centers and the ligand bibim-4.
View Article and Find Full Text PDFZhonghua Jie He He Hu Xi Za Zhi
November 2012
Objective: To investigate the expression of β-catenin in pulmonary tissues of smokers with and without chronic obstructive pulmonary disease (COPD).
Methods: Pulmonary tissues were obtained from patients who had underwent pneumonectomy in Tongji Hospital. The subjects were assigned into non-smokers without COPD (control group), smokers without COPD (smoker group) and smokers with COPD (smoker + COPD group) based on their pulmonary functions and smoking history, with 12 subjects each group.
Acta Crystallogr Sect E Struct Rep Online
June 2012
The title compound, {(C(13)H(22)N(4))[Ag(2)I(4)]}(n), was prepared by reaction of 1,3-bis-(N-ethyl-imidazolium-1-yl)propane iodide with silver (I) oxide. In the 3,3'-diethyl-1,1'-(propane-1,3-di-yl)di(1H-imidazol-3-ium) cation, the dihedral angle between the imidazole rings is 49.3 (1)°.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
November 2009
In the title compound, (C(11)H(15)N(2))(2)[HgBr(4)], the tetra-coordinated Hg(II) center of the complex anion adopts a distorted tetra-hedral geometry [Hg-Br = 2.5755 (8)-2.623 (11) Å and Br-Hg-Br = 103.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
November 2009
In the title compound, (C(22)H(23)N(2))[Hg(2)I(6)](0.5)·(CH(3))(2)SO, the 1-butyl-3-(1-naphthyl-meth-yl)benzimidazolium anion lies across a centre of inversion. The dihedral angle between the benzimidazolium and naphthalene ring systems is 81.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
January 2008
In the title compound, C(10)H(11)N(2) (+)·PF(6) (-)·C(10)H(10)N(2), the H atom involved in protonation is disordered equally between the cation and the neutral mol-ecule. The dihedral angle between the phenyl and imidazole rings is 82.6 (2)°.
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