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Maoming, China

Jiang W.X.,Dongguan Polytechnic | Hu X.Z.,Dongguan Polytechnic | Wang S.,Dongguan Polytechnic | Liang Y.,Maoming Polytechnic
Applied Mechanics and Materials | Year: 2014

According to different node data access objects, and based on the idea of behavior-driven development, an interface-oriented node data access tool is designed and implemented. The tool mainly implements an executable node data access tool that is based on MFC, and writes a set of Win32 console application, which improves the node data automation access scripts and encapsulates the module interfaces, thus improving the distributed network data access speed. © (2014) Trans Tech Publications, Switzerland.

Chen S.-F.,Maoming Polytechnic | Zhang H.,Kingston University
Water Science and Technology | Year: 2014

The present study seeks to elucidate the effect of different electrolytes on the stability of citrate-coated silver nanoparticles synthesized by the reduction of the Ag(NH3)2 + complex via Tollens' method. Time-resolved dynamic light scattering technique was used to measure the aggregation behavior of the nanoparticles over a range of electrolyte (NaCl, CaCl2, and AlCl3) concentrations. From the aggregation kinetic data, the critical coagulation concentration values were calculated as 0.11, 1.7 × 10-3, and 5.06 × 10-6 M for NaCl, CaCl2, and AlCl3, respectively. Supernatant of the nanoparticle suspension in presence of the three electrolytes was collected and measured using inductively coupled plasma mass spectrometry to quantify the sedimentation. It was found that the silver nanoparticle aggregates settled rapidly in the slow aggregation and fast aggregation regimes. Their sedimentation followed a nanoparticle size-dependent manner. © IWA Publishing 2014.

Jiang W.,Dongguan Polytechnic | Hu Z.,Wuhan Polytechnic University | Liang Y.,Maoming Polytechnic | Chen Y.,Dongguan Polytechnic
Advance Journal of Food Science and Technology | Year: 2015

Aiming at improving the efficiency of food cold-chain logistics network, shortening the logistic time of food and reducing the logistics cost of food, this study analyzes the optimization strategy and various cost factors of the supply network of food cold chain and establishes and expands a kind of logistics network model adapting to the food cold-chain logistics. We use an improved genetic algorithm to solve the model and design an effective coding scheme, through the modified adaptive crossover probability and mutation probability, we integrate them into the elitism strategy, which has effectively avoided the prematurity of the algorithm and improved the operation efficiency of the algorithm. In the same instance, compared with the simple genetic algorithm, this study puts forward that the average running time and the average iteration number of the improved genetic algorithm have reduced nearly 50%, which has proved the feasibility and the effectiveness of the model and the algorithm. © Maxwell Scientific Organization, 2015.

Ke C.,Maoming Polytechnic
Proceedings - 2013 6th International Conference on Business Intelligence and Financial Engineering, BIFE 2013 | Year: 2014

In recent years, China's retail industry growing prosperity. From macro and micro perspective, this paper systematically analyzed the Maoming area's retail marketing environment. The results showed that the retail of Maoming have a great development space, county-level cities, the rural market still has a great potential, we should vigorously develop county-level city, town and village's retail market, building business networks in rural. In addition, medicine retail needs further development, and the network marketing is the development trend in the future. Through this study, hope can provide guidance for further prosperity and development of this local retail, and promote its sustainable development. © 2013 IEEE.

Chen S.-F.,Maoming Polytechnic | Zhang H.,University of Rhode Island | Lin Q.-Y.,Hezhou University
Water Science and Technology | Year: 2013

This study evaluates the time-dependent dissolution of nanosilver (nAg) in common electrolytes and natural waters. nAg was synthesized via Tollens' method using sodium citrate as stabilizer; its morphology, UV-Vis spectrum, and particle size were characterized. The dissolved silver was monitored over time using filtration, centrifugation, and inductively coupled plasma atomic emission spectroscopy (ICP-AES). Our results indicated that nanoparticle aggregation, Cl- presence, and natural organic compounds could affect the dissolution behavior of nAg. The dissolution of nAg was highly dependent on Cl- concentration. Excessive Cl- enhanced nanoparticle dissolution, whereas natural organic compound inhibited the dissolution. The dissolution data fitted well with the first-order kinetic model, and the dissolution rate coefficients were calculated using the first-order equation. This study showed the dissolution of nAg under various water conditions. The obtained results may be helpful in predicting nAg behavior in relevant environmental aquatic systems. © IWA Publishing 2013.

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