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
Reduction rate of dragload and downdrag of piles by taper angles
Transactions of Tianjin University - Tập 22 - Trang 434-440 - 2016
Gangqiang Kong, Liduo Zhou, Huaifeng Peng, Hongwei Gu
Taper angle is one of the effective methods to reduce the dragload and downdrag of piles under the surcharge load. The model tests on the tapered pile and uniform cross-section pile embedded in sand were carried out under the surcharge load. The values of dragload and downdrag of piles versus the surcharge loads were measured. Based on the concentric cylinder shearing theory, a simplified theoreti...... hiện toàn bộ
3D Reconstruction technique for tomographic PIV
Transactions of Tianjin University - Tập 21 - Trang 533-540 - 2015
Nan Jiang, Quan Bao, Shaoqiong Yang
Tomographic particle image velocimetry (Tomo-PIV) is a state-of-the-art experimental technique based on a method of optical tomography to achieve the three-dimensional (3D) reconstruction for three-dimensional three-component (3D-3C) flow velocity measurements. 3D reconstruction for Tomo-PIV is carried out herein. Meanwhile, a 3D simplified tomographic reconstruction model reduced from a 3D volume...... hiện toàn bộ
3D finite element simulation of tunnel boring machine construction processes in deep water conveyance tunnel
Transactions of Tianjin University - Tập 15 - Trang 101-107 - 2009
Denghua Zhong, Dawei Tong
Applying stiffness migration method, a 3D finite element mechanical model is established to simulate the excavation and advance processes. By using 3D nonlinear finite element method, the tunnel boring machine (TBM) excavation process is dynamically simulated to analyze the stress and strain field status of surrounding rock and segment. The maximum tensile stress of segment ring caused by tunnel c...... hiện toàn bộ
Rational Manipulation of Intermediates on Copper for CO2 Electroreduction Toward Multicarbon Products
Transactions of Tianjin University - Tập 28 Số 4 - Trang 265-291 - 2022
Guangyi Jiang, Daliang Han, Zishan Han, Jian Gao, Xinyu Wang, Zhe Weng, Quan‐Hong Yang
AbstractExcess greenhouse gas emissions, primarily carbon dioxide (CO2), have caused major environmental concerns worldwide. The electroreduction of CO2 into valuable chemicals using renewable energy is an ecofriendly approach to achieve carbon neutrality. In this regard, copper (Cu) has attracted considerable attention as ...... 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
Simplest normal forms of generalized Neimark-Sacker bifurcation
Transactions of Tianjin University - - 2009
Yumei Ding, Qichang Zhang
The normal forms of generalized Neimark-Sacker bifurcation are extensively studied using normal form theory of dynamic system. It is well known that if the normal forms of the generalized Neimark-Sacker bifurcation are expressed in polar coordinates, then all odd order terms must, in general, remain in the normal forms. In this paper, five theorems are presented to show that the conventional Neima...... hiện toàn bộ
Thuật toán di truyền cho việc lập lịch công việc vào lại trên các máy song song với một máy chủ từ xa Dịch bởi AI
Transactions of Tianjin University - Tập 19 - Trang 463-469 - 2013
Hong Wang, Haijuan Li, Yue Zhao, Dan Lin, Jianwu Li
Bài báo này xem xét một vấn đề lập lịch công việc vào lại trên các máy chính song song với một máy chủ từ xa, được yêu cầu thực hiện hoạt động thiết lập. Trong vấn đề này, mỗi công việc có ba hoạt động. Hai hoạt động đầu tiên và cuối cùng được thực hiện bởi cùng một máy chính, cho thấy sự quay lại, và hoạt động thứ hai được xử lý trên máy chủ đơn. Thứ tự các công việc được xác định trước trong bối...... hiện toàn bộ
Polydopamine-assisted fabrication of fiber-optic localized surface plasmon resonance sensor based on gold nanoparticles
Transactions of Tianjin University - Tập 21 - Trang 412-419 - 2015
Rongxin Su, Zheyuan Pei, Renliang Huang, Wei Qi, Mengfan Wang, Libing Wang, Zhimin He
A fast and facile method of fabricating fiber-optic localized surface plasmon resonance sensors based on spherical gold nanoparticles was introduced in this study. The gold nanoparticles with an average diameter of 55 nm were synthesized via the Turkevich method and were then immobilized onto the surface of an uncladded sensor probe using a polydopamine layer. To obtain a sensor probe with high se...... hiện toàn bộ
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