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991.
Jian-Guo Lin Ling Qiu Wen Cheng Shi-Neng Luo Ke Wang Qing-Jin Meng 《Inorganic chemistry communications》2010,13(7):855-858
Employing nicotinamide and 2-nitrobenzoate as mixed ligands, a new complex was obtained and characterized by single crystal X-ray diffraction, [Co(C7H5NO4)2(C6H5NO2)2(H2O)2]·2H2O (1). It is connected by the strong O–H…O and N–H…O hydrogen bonds to form a two-dimensional (2-D) supramolecular network. The biological activity of complex 1 was investigated and the results indicate that it is an effective inhibitor of vascular endothelial growth factor receptor-2 tyrosine kinase (VEGFR-2 TK) with an IC50 value of 608 nM. 相似文献
992.
993.
Xiang-nan Zhu Qiang Wang Xian-jun Lv Jun Qiu Yan Zhang 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2018,40(12):1477-1484
Effect of porosity on particle density was analyzed, which can be a potential factor of low efficiency. The porosity of particle with different densities was detected by surface area analyzer. In addition, Three-dimensional X-ray micro-imaging system (3D-XRM) was used to analyze the spatial distribution of internal pores. Results show that mesoporous and microporosity content increase with the increase of particle density. Three-dimensional distribution of pores shows that the pores are very rich and show a good connection. The density model including porosity and medium density was established, which shows the effect of medium filling on the change of particle density. 相似文献
994.
Study of tritium transport characteristics in a transportable fluoride‐salt‐cooled high‐temperature reactor
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Tritium management is one of the most critical issues that limit the development of fluoride‐salt‐cooled high‐temperature reactor (FHR); therefore, it is important to figure out the tritium transport characteristics in FHRs. In this paper, 3 works concerning about tritium in FHR are conducted: first, the tritium transport characteristics in the primary loop of FHRs are introduced, including tritium production and speciation, the absorption and desorption by graphite, dissolution and diffusion in molten salt, and permeation through structural materials. Second, the physical and mathematical models are established for tritium transport characteristic analysis in a transportable FHR (TFHR). The tritium transport characteristic analysis code (TAPAS) for TFHR is developed and benchmarked. The results prove the fidelity and accuracy of TAPAS. Finally, the tritium transport characteristics in the TFHR are analyzed systematically by TAPAS. Three conclusions are obtained: (1) tritium in the primary coolant loop is mainly in the form of T2; (2) when TFHR operates at steady state, the permeation rate of T2 can be regarded as a constant (9.03 × 109 Bq ? EFPD?1 ); and (3) 7Li enrichment and redox potential of molten salt have great influence on the tritium distribution. This work might provide contribution to the tritium control in FHRs. 相似文献
995.
996.
997.
In this study, a thermal-hydraulic and safety analysis code (TSACO) for helium cooling system has been developed using Fortran 90 language, and the simulation has been performed for the cooling system of the Chinese helium cooled ceramic breeder test blanket module (CH HCCB TBM). The semi-implicit finite difference technique was adopted for the solution of the dynamic behavior of helium cooling system. Furthermore, a detailed illustration of the numerical solution for heat structures and critical model was presented. The code was verified by the comparison of RELAP5 code with the same initial condition, boundary condition, heat transfer and flow friction models. The TBM inlet/outlet temperatures and pressure drop were obtained and the results simulated by TSACO were shown in good agreement with those by RELAP5. Thereafter, the design basis accident in-vessel loss of coolant accident (LOCA), was investigated for the CH HCCB TBM cooling system. The critical flow model was also verified by comparing with RELAP5 code. The results indicated that the TBM can be cooled down effectively. The vacuum vessel (VV) pressure and the mass of helium spilled into the VV maintained below the design limits with a large margin. 相似文献
998.
999.
Peng Du Feng Yang Xiaomei Zang Chengcheng Qiu 《Journal of Materials Science: Materials in Electronics》2014,25(12):5316-5321
BiFeO3 (BFO)-based ferroelectric films thicker than 1 µm are promising in dielectric, piezoelectric, and pyroelectric applications. However, using the common sol–gel technology to prepare BFO-based thick films is difficult because of crack formation and poor crystallization. In this study, we demonstrate that it is possible to prepare well-crystallized Bi0.95La0.05FeO3 (BLFO) thick films with a thickness of 1.4 µm by modifying excess Bi content. The effect of excess Bi content on the electrical properties of the BLFO thick film was investigated. Most excess Bi particles were found to be concentrated in the grain boundaries of thick films instead of volatilizing. Adding appropriate excess Bi when preparing BLFO thick films was also found to promote crystal growth and improve electrical properties. 相似文献
1000.
During the last 10 years, there has been considerable interest in the development of conformal load-bearing antenna structure (CLAS) for communication and aerospace applications. CLAS combines the antenna into a composite structure such that it can carry the designed load while functioning as an antenna. In this paper, a 3D integrated microstrip antenna (3DIMA) was designed and fabricated. The input return loss and radiation pattern of the antennas were simulated using a computer aided design tool (HFSS) and also measured experimentally. The swept input return loss curve in the range of 1–2 GHz of the 3DIMA showed a return loss of ?13.15 dB at the resonant frequency of 1.872 GHz with a voltage standing wave ratio (VSWR) of 1.56; the radiation pattern has a maximum at 180° and agrees well with the simulation results, indicating that 3DIMA can be an effective approach for a CLAS. 相似文献