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Yu R.,Changzhou Vocational Institute of Engineering
Chemical Engineering Transactions | Year: 2015

Considering the parameters of the traditional PID control algorithm are not capable of online adjustment and do not have adaptive capability once they are determined, which can not satisfied the precision control requirement of servo system with complex nonlinear friction, a PID controller based on radial basis function neural network (RBFNN) is designed, the advantages of RBFNN such as infinity approaching nonlinear system, little operation quantity and speedy constringency are combined with PID control technology organically to obtain high position tracking accuracy. The simulate results show that compared with common PID control, the RBFNN PID controller can adaptively adjust the controller parameters, greatly improving the control precision of the system. Copyright © 2015, AIDIC Servizi S.r.l.

Li D.-M.,Changzhou Vocational Institute of Engineering
Conference Proceedings of the 4th International Symposium on Project Management, ISPM 2016 | Year: 2016

The success of enterprises in the future lies in two important elements, flow (reduce lead time) and flexibility (equipment, personnel and product), which require enterprises to continuously carry out lean production VSM based on macro strategy and reduce waste during production. Waste during production usually adopts the form of shotpoint to be promoted and improved in the hope of decreasing total production cycle time (namely increasing flow of enterprise product). Total freight volume management discussed in this paper is a theory to present flow and flexibility of enterprise products based on the product of hauling distance and hauling weight during all production links within total production cycle time under VSM. Total freight volume fully reflects waste and efficiency of VSM during production and is presented to enterprise managers in the form of macro data.

Yu R.,Changzhou Vocational Institute of Engineering
Chemical Engineering Transactions | Year: 2015

Storage battery's thin energy density has directly restricted the industrial development of electric vehicles, the pivotal parameters have been matching based on the theoretical analysis of circulating operation, and combined with genetic algorithm's superior ability, the peak power of motor and ratio of transmission have been optimized with the consideration of dynamic restriction. The results show that the optimized parameter can lead the automobile' driving mileage to increase 18.78% on the basic dynamic requirement of national standard. Copyright © 2015, AIDIC Servizi S.r.l.

Yu R.,Changzhou Vocational Institute of Engineering
International Journal of Control and Automation | Year: 2016

Aiming at the market shares of automatic mechanical transmission, the driving smoothness was studied. Based on the dynamical model of automatic mechanical transmission, the numerical model of automatic mechanical transmission had been established and a shifting strategy was analyzed. The result shows that the impact of automatic mechanical transmission on the condition of shifting fast can meet the national legislation. © 2016 SERSC.

Hao Y.,Xi'an Jiaotong - Liverpool University | Chong W.,Xi'an Jiaotong - Liverpool University | Man K.L.,Xi'an Jiaotong - Liverpool University | Liu O.,Xi'an Jiaotong - Liverpool University | Shi X.,Changzhou Vocational Institute of Engineering
Lecture Notes in Engineering and Computer Science | Year: 2016

With the Increasing popularity of Information communication technologies, crowdsowcing has become a significant method for companies to involve customers in various enterprises' activities. Also, since user experience (UX) emerges as an important element in the design of interactive products, it is essential to indentify the main detcnninants that can improve UX. Based on recent siudics, this paper provides a conceptual framework indicating key factors that influence the LJX of mobile crowdsourcing applications. These factors range from easiness of tasks in crowdsourcing applications, users' attitudes towards crowdsourcisg companies, social influences to economic reward in crowdsourcing activities.

Xu H.,Ludong University | Chen X.,Changzhou Vocational Institute of Engineering | Pan S.,Changzhou University | Qin Y.,Changzhou University | And 2 more authors.
Synthetic Metals | Year: 2016

Sulfur and nitrogen codoped three-dimensional graphene-MnS (MnS/S,N-3DG) hybrids are facilely synthesized via a hydrothermal method followed by freeze-drying and pyrolysis treatment. The obtained MnS/S,N-3DG as an electrocatalyst for oxygen reduction reaction (ORR) shows excellent electrocatalytic performance. The codoped S and N as well as the introduced MnS significantly promote the electrocatalytic activity of graphene and efficiently catalyze the ORR process through a mixture of two-electron transfer pathway and four-electron transfer pathway (electron transfer number equals to 3.8 or 3.9), which is even better than the commercial Pt (5%)/C catalyst. Moreover, the developed MnS/S,N-3DG electrocatalyst possesses excellent long-term stability and methanol tolerance, and could be a promising cathode electrocatalyst in future energy conversion and storage systems. © 2016 Elsevier B.V.

Bao L.,Changzhou University | Chen X.,Changzhou Vocational Institute of Engineering | Yang B.,Changzhou University | Tao Y.,Changzhou University | Kong Y.,Changzhou University
ACS Applied Materials and Interfaces | Year: 2016

Polysaccharides of sodium carboxymethyl cellulose (CMC) and chitosan (CS) were integrated together via amidation reactions between the carboxyl groups on sodium CMC and the amino groups on CS. Compared with individual sodium CMC and CS, the integrated polysaccharides with a mass ratio of 1:1, CMC-CS (1:1), exhibited a three-dimensional (3D) porous network structure, resulting in a significantly enhanced hydrophility due to the exposed polar functional groups in the CMC-CS (1:1). Chiral interfaces were constructed with the integrated polysaccharides and used for electrochemical enantiorecognition of tryptophan (Trp) isomers. The CMC-CS (1:1) chiral interfaces exhibited excellent selectivity toward the Trp isomers owing to the highly hydrophilic feature of CMC-CS (1:1) and the different steric hindrance during the formation of H bonds between Trp isomers and CMC-CS (1:1). Also, the optimization in the preparation of integrated polysaccharides such as mass ratio and combination mode (amidation or electrostatic interactions) was investigated. The CMC-CS (1:1) presented the ability of determining the percentage of d-Trp in racemic mixtures, and thus, the proposed electrochemical chiral interfaces could be regarded as a potential biosensing platform for enantiorecognition of chiral compounds. © 2016 American Chemical Society.

Chen X.,Kochi University | Chen X.,Changzhou Vocational Institute of Engineering | Chen Z.,Changzhou University | Hojo M.,Kochi University
Journal of Molecular Liquids | Year: 2016

In binary mixed solvents, acetonitrile-water (MeCN-H2O) and acetonitrile-methanol (MeCN-MeOH), specific interactions between alkali metal (M+ = Li+, Na+) or alkaline earth metal ions (Mg2 +, Ca2 +, Ba2 +) and the 1,4- or 2,3-naphthalenedicarboxylate ion [(n-Bu4N+)2L2 -] have been thoroughly examined by UV-visible spectroscopy. With increasing LiClO4 concentration, tetrabutylammonium 1,4-naphthalenedicarboxylate (1.0 × 10- 4 mol dm- 3) causes the precipitation of Li2L in 2.0-15% (v/v) MeOH-MeCN, however, the precipitates are apt to re-dissolve completely to form the "reverse-coordinated" species, Li3L+, with the further addition of an excess amount of LiClO4. NaClO4 causes similar precipitation and re-dissolution of the precipitates in similar conditions. The formation of ML and M2L2 + species of Mg2 +, Ca2 +, and Ba2 + have been observed up to15 or 20% (v/v) H2O-MeCN. Even in sole EtOH, the ML and M2L2 + species have been clearly observed for Mg2 + and Ba2 + but not for Ca2 +. Contrastingly, the precipitates of Li2L and Na2L of 2,3-naphthalenedicarboxylate (1.0 × 10- 4 mol dm- 3) would not re-dissolve in the presence of 1.0 mol dm- 3 LiClO4 or NaClO4 in 2.0 or 5.0% (v/v) H2O-MeCN. Because of the higher solubility of MgL in H2O-MeCN solvents, the Mg2L+ species can be observed only in 2.0 or 5.0% (v/v) H2O-MeCN. Between the L2 - ion and Ca2 + or Ba2 +, the precipitation and the successive re-dissolution of precipitates have been observed obviously in a narrow range around 25 or 30% (v/v) H2O. The precipitates of BaL and "reverse-coordinated" species of Ba2L2 + of the 2,3-derivative have been observed in sole MeOH or EtOH. Generally speaking, the solubility products (pKsp) and the "reverse" coordination constants (log K3 or log K2) both for 1,4- and 2,3-derivatives decrease with increasing contents of H2O or MeOH in MeCN; where, 3 M+ + L2 - ⇄ M3L+, K3 = [M3 L+] / ([M+]3 [L2 -]) or 2 M2 + + L2 - ⇄ M2L2 +, K2 = [M2 L2 +] / ([M2 +]2 [L2 -]). © 2016 Elsevier B.V. All rights reserved.

Ji D.,China Pharmaceutical University | He X.,China Pharmaceutical University | He X.,Changzhou Vocational Institute of Engineering | Zhu Q.,China Pharmaceutical University | Xu Y.,China Pharmaceutical University
Organic Letters | Year: 2016

An efficient and facile process was developed for the remote C-H bond amidation of 8-aminoquinoline scaffolds on the C5 position which is geometric. The method only made use of PhI(OAc)2 as a mediator and showed good tolerance toward numerous dibenzenesulfonimides and amides, giving the corresponding products in moderate to excellent yield. © 2016 American Chemical Society.

Wu Y.,Changzhou Vocational Institute of Engineering | Wei Y.,Nanjing University of Aeronautics and Astronautics
Hanjie Xuebao/Transactions of the China Welding Institution | Year: 2015

The first intelligentialized welding CAPP system was developed by combining expert system based on the current research situation of welding CAPP at home and abroad. This system can complete welding document preparation with its welding process design module, process cards compile module and material cost quota calculation module. Welding process design module can deduce welding process parameters based on welding knowledge base, welding inference engine and welding explanation facility. There are three ways to compile process cards: the typical procedure method, the similar procedure method and the menu method. Thus the user can complete the work easily and fast. By parametric groove and iteration method, the total and every layer consumption of multi-pass welding can be calculated. ©, 2015, Harbin Research Institute of Welding. All right reserved.

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