Time filter

Source Type

Hangzhou, China

Zhejiang University of Technology is located in the city of Hangzhou, Zhejiang Province. It is considered one of the top industrial universities in mainland China and the second largest university in Zhejiang Province after the most comprehensive university - Zhejiang University.Engineering, especially chemical and biological engineering, is its strongest element. During the 1980s it made an effort to become a comprehensive technological university instead of a technological college. It keeps a close and broad relationship to industry.It is a typical technical university of the new generation in China. It followed the trend during the 1980s and 1990s of Chinese technical institutes changing from the soviet specialized style into a much more comprehensive style. Wikipedia.

Zhang F.,Zhejiang University of Technology | Zhang F.,University of Cambridge | Spring D.R.,University of Cambridge
Chemical Society Reviews | Year: 2014

The use of coordinating moieties as directing groups for the functionalisation of aromatic carbon-hydrogen (C-H) bonds has become an efficient strategy for the selective construction of new carbon-carbon (C-C) and carbon-heteroatom (C-X) bonds in arenes. However many directing groups cannot be easily removed/modified from the products after C-H functionalisation, thus limiting the structural diversity of the products. This limitation can be overcome by employing removable/modifiable or traceless directing groups which can be easily attached to the starting materials and detached from the products. In this tutorial review, we give an overview of recent advances in this emerging field which have dramatically increased the synthetic applicability of C-H functionalisation processes. This journal is © the Partner Organisations 2014. Source

Pei Z.,Zhejiang University of Technology
Information Sciences | Year: 2013

In the age of mass customization with service oriented manufacturing, more and more production lines are designed according to the frequently changing customer demands. In order to improve upon the flexible production lines, rapid assessment tools have to be developed and implemented. Since uncertain information and incomplete knowledge coexist inevitably in the rapid assessment process, in literature, fuzzy multi-attribute decision making models are established to handle them simultaneously. However, very few papers have paid adequate attention to the decision maker's rationality, i.e., the optimism level of the decision maker. Therefore, in this paper, a series of novel rational decision making models are developed in dealing with the multi-attribute assessment problems, which include incomplete preference information. And the evaluating data are expressed under interval-valued intuitionistic fuzzy settings. Compared with the traditional distance-based method, correlation coefficient between each alternative and the ideal solution with (α, β) optimism level is applied. Furthermore, confidence level and cognitive dissonance of the decision maker are included in the overall decision making process in order to constitute a more comprehensive evaluation of the flexible production line. Besides, several insights are revealed concerning the levels of optimism and the weights of production line attributes. Finally, a three-stage empirical study is conducted to validate the proposed models, compare them with the traditional distance-based methods, and the result shows that our approach is not only valid but also outperforms the traditional methods. © 2012 Elsevier Inc. All rights reserved. Source

Chen S.Y.,Zhejiang University of Technology
IEEE Transactions on Industrial Electronics | Year: 2012

Kalman filters have received much attention with the increasing demands for robotic automation. This paper briefly surveys the recent developments for robot vision. Among many factors that affect the performance of a robotic system, Kalman filters have made great contributions to vision perception. Kalman filters solve uncertainties in robot localization, navigation, following, tracking, motion control, estimation and prediction, visual servoing and manipulation, and structure reconstruction from a sequence of images. In the 50th anniversary, we have noticed that more than 20 kinds of Kalman filters have been developed so far. These include extended Kalman filters and unscented Kalman filters. In the last 30 years, about 800 publications have reported the capability of these filters in solving robot vision problems. Such problems encompass a rather wide application area, such as object modeling, robot control, target tracking, surveillance, search, recognition, and assembly, as well as robotic manipulation, localization, mapping, navigation, and exploration. These reports are summarized in this review to enable easy referral to suitable methods for practical solutions. Representative contributions and future research trends are also addressed in an abstract level. © 2011 IEEE. Source

A device and a process for producing undecylenic acid methyl ester using methyl ricinoleate as raw material are provided. The device comprises a feed pump, a raw material pre-heater, a microwave catalytic reactor, a microwave generator, a temperature controller and an infrared sensor, a condenser, a product tank and a discharge pump. The feed pump is connected with the raw material pre-heater, which is connected with the inlet of the microwave catalytic reactor. The outlet of the microwave catalytic reactor is connected with the condenser, which is connected to the product tank and the discharge pump. The microwave catalytic reactor is located in the microwave generator, which is connected with the temperature controller and the infrared sensor. The process is as follows: high-purity methyl ricinoleate, used as the raw material, is converted to methyl undecene and heptaldehyde by microwave-assisted pyrolysis process, followed by isolation and purification to produce methyl undecene.

Queen's University of Belfast and Zhejiang University of Technology | Date: 2012-12-14

Disclosed are WC/CNT, WC/CNT/Pt composite material and preparation process therefor and use thereof. The WC/CNT/Pt composite material comprises mesoporous spherical tungsten carbide with diameter of 1-5 microns, carbon nanotubes and platinum nanoparticles, with the carbon nanotubes growing on the surface of the mesoporous spherical tungsten carbide and expanding outward, and the platinum nanoparticles growing on the surfaces of the mesoporous spherical tungsten carbide and carbon nanotubes. The WC/CNT composite material comprises mesoporous spherical tungsten carbide with diameter of 1-5 microns, and carbon nanotubes growing on the surface of the mesoporous spherical tungsten carbide and expanding outward. The WC/CNT/Pt composite material can be used as an electro-catalyst in a methanol flue battery, significantly improving the catalytic conversion rate and the service life of the catalyst. The WC/CNT composite material can be used as an electro-catalyst in the electro-reduction of a nitro aromatic compound, significantly improving the efficiency of organic electro-synthesis.

Discover hidden collaborations