Transactions of Tianjin University

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Review on the Relationship Between Liquid Aerospace Fuel Composition and Their Physicochemical Properties
Transactions of Tianjin University - Tập 27 - Trang 87-109 - 2020
Xiaoyu Wang, Tinghao Jia, Lun Pan, Qing Liu, Yunming Fang, Ji-Jun Zou, Xiangwen Zhang
The development of advanced air transportation has raised new demands for high-performance liquid hydrocarbon fuels. However, the measurement of fuel properties is time-consuming, cost-intensive, and limited to the operating conditions. The physicochemical properties of aerospace fuels are directly influenced by chemical composition. Thus, a thorough investigation should be conducted on the inhere...... hiện toàn bộ
Peanut-Like Hematite Prepared by a New Facile Hydrothermal Process for Removal of As(V)
Transactions of Tianjin University - Tập 25 - Trang 23-30 - 2018
Chengjin Zhang, Shaoyi Jia, Songhai Wu, Yong Liu
Peanut-like hematite has been prepared by a new facile hydrothermal method and applied in the adsorption removal of As(V). The structural features of the as-prepared hematite were characterized systematically by X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller, scanning electron microscopy, energy-dispersive X-ray spectroscopy mapping, Fourier transform infrared spectros...... hiện toàn bộ
Progress in Electrolyte Engineering of Aqueous Batteries in a Wide Temperature Range
Transactions of Tianjin University - - 2023
Lingjun He, Chuyuan Lin, Peixun Xiong, Huakuan Lin, Wenbin Lai, Jingran Zhang, Fuyu Xiao, Liren Xiao, Qingrong Qian, Qinghua Chen, Zeng Ling
AbstractAqueous rechargeable batteries are safe and environmentally friendly and can be made at a low cost; as such, they are attracting attention in the field of energy storage. However, the temperature sensitivity of aqueous batteries hinders their practical application. The solvent water freezes at low temperatures, and there is a reduction in ionic conductivity...... hiện toàn bộ
Test on evaluation method for biodegradability of lubricants
Transactions of Tianjin University - Tập 14 - Trang 61-65 - 2008
Lihe Yang, Yong Zhu, Guochen Fan, Yude Sun, Shiwen Xie
Using carbon tetrachloride (CCl4) as extraction agent, the activated sludge from Tianjin Jizhuangzi Sewage Treatment Plant as inoculum, the test study on biodegradability of lubricants was carried out. The test flasks containing the mineral medium, the test oil and the inoculum were placed in incubation together with flasks containing poisoned blanks for periods of 0 and 21 days, respectively. Fla...... hiện toàn bộ
Synthesis of atrazine-HPCD inclusion and its bioactivity
Transactions of Tianjin University - Tập 20 - Trang 350-357 - 2014
Jinyan Zhang, Bin Li, Hongmei Bi, Ping Zhang
The inclusion of atrazine with 2-hydroxypropyl-β-cyclodextrin (HPCD) was synthesized by ultrasonic method, and it was characterized by UV, XRD and 1H NMR. The solubility in water and the bioactivity of the inclusion were also studied here. The results indicated that the UV maximum absorption wavelength of the inclusion remained at 223 nm, while its intensity decreased. The XRD peaks of atrazine di...... hiện toàn bộ
Coupled seepage and heat transfer intake model
Transactions of Tianjin University - Tập 15 - Trang 446-451 - 2009
Junhua Wu, Shijun You, Huan Zhang, Haishan Li
In the beach well intake system, heat is transferred from soil to fluid when seawater is filtered through the aquifer, providing higher temperature source water to the seawater source heat pump (SWHP) system in winter. A 3-D coupled seepage and heat transfer model for studying beach well intake system is established by adopting the computer code FLUENT. Numerical results of this model are compared...... hiện toàn bộ
Secrecy performance of untrusted relay’s cooperation under fading channels
Transactions of Tianjin University - - 2011
Xiaomei Fu, Li Zhang, Dawei Wang, Yandong Hou
Performance of Methanol-to-Olefins Catalytic Reactions by the Addition of PEG in the Synthesis of SAPO-34
Transactions of Tianjin University - Tập 23 - Trang 501-510 - 2017
Yaquan Wang, Zhao Wang, Chao Sun, Hengbao Chen, Hongyao Li, Haoyang Li
SAPO-34, a silicoaluminophosphate zeolite, has been synthesized by the hydrothermal method with the addition of different molecular weights of polyethylene glycol (PEG), and has been characterized with XRD, SEM, N2 adsorption–desorption, FT-IR, and NH3 temperature-programmed desorption (NH3-TPD). We studied SAPO-34 as a catalyst in the methanol-to-olefins (MTO) reaction, in a fixed-bed reactor. Th...... hiện toàn bộ
Preparation of boric-10 acid applied in nuclear industry
Transactions of Tianjin University - Tập 21 Số 2 - Trang 172-177 - 2015
Lei Zhang, Weijiang Zhang, Jun Xu, Bo Li
Effect of NaOH Treatment on Catalytic Performance of ZSM-5 in Cyclohexene Hydration
Transactions of Tianjin University - Tập 23 Số 1 - Trang 43-50 - 2017
Wang, Yaquan, Wang, Shougui, Meng, Fanjun, Wang, Shuhai, Ye, Jiaxin, Lin, Yongjie
ZSM-5 zeolite prepared by a hydrothermal method with the addition of seeds was treated with different concentrations of NaOH. The obtained samples were characterized by XRD, N2 adsorption, NH3-TPD, FT-IR, SEM, and studied in the catalytic performance of the hydration of cyclohexene to cyclohexanol. The characterization results showed that with the increase of NaOH concentration, the crystallinity ...... hiện toàn bộ
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