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Yan Zheng
College of Automobile and Traffic Engineering, Nanjing Forestry University, Longpan Road 159#, Nanjing 210037, China

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Journal article
Published: 16 February 2020 in Information
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The location and grade setting of a timber logistics center is an important link in the optimization of the timber logistics system, the rationality of which can effectively improve the efficiency of the timber logistics supply chain. There is a long distance between the main forested areas in China, and more than 55% of the timber demand depends on imports. Research and practice of systematically planning timber logistics centers in the whole country have not been well carried out, which reduces the efficiency of timber logistics. In this paper, 47 timber trading markets with a certain scale in China are selected as the basis for logistics center selection. Based on their transportation network relationship and the number of enterprises in the market, combined with the complex network theory and data analysis method, the network characteristics of three different transportation networks are measured. After determining the transportation capacity indicator, the logistics capacity coefficient is measured based on the freight volume of each node. Then, the important nodes are identified, and each node is graded to systematically set up the timber logistics center.

ACS Style

Liang Xue; Xin Huang; Yuchun Wu; Xingchen Yan; Yan Zheng. Grade Setting of a Timber Logistics Center Based on a Complex Network: A Case Study of 47 Timber Trading Markets in China. Information 2020, 11, 107 .

AMA Style

Liang Xue, Xin Huang, Yuchun Wu, Xingchen Yan, Yan Zheng. Grade Setting of a Timber Logistics Center Based on a Complex Network: A Case Study of 47 Timber Trading Markets in China. Information. 2020; 11 (2):107.

Chicago/Turabian Style

Liang Xue; Xin Huang; Yuchun Wu; Xingchen Yan; Yan Zheng. 2020. "Grade Setting of a Timber Logistics Center Based on a Complex Network: A Case Study of 47 Timber Trading Markets in China." Information 11, no. 2: 107.

Journal article
Published: 27 June 2019 in Entropy
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Thermoelastic damping is a critical issue for designing very high quality factor microresonators. This paper derives the entropy generation, associated with the irreversibility in heat conduction, that is used for ring resonators in in-plane vibration and presents an analytical model of thermoelastic damping according to heat increments calculated by entropy theory. We consider the heat flow only in radial thickness of the ring and obtain a complex temperature field that is out of phase with the mechanical stress. The thermoelastic dissipation is calculated in the perspective of heat increments that appear due to entropy generation. The analytical model is validated by comparing with an LR (Lifshitz and Roukes) model, finite-element method and measurement. The accuracy of the present model is found to be very high for different ambient temperatures and structures. The effects of structure dimensions and vibration frequencies on entropy generation and thermoelastic damping is investigated for ring resonators under in-plane vibration.

ACS Style

Yongpeng Tai; Pu Li; Yan Zheng; Jie Tian. Entropy Generation and Thermoelastic Damping in the In-plane Vibration of Microring Resonators. Entropy 2019, 21, 631 .

AMA Style

Yongpeng Tai, Pu Li, Yan Zheng, Jie Tian. Entropy Generation and Thermoelastic Damping in the In-plane Vibration of Microring Resonators. Entropy. 2019; 21 (7):631.

Chicago/Turabian Style

Yongpeng Tai; Pu Li; Yan Zheng; Jie Tian. 2019. "Entropy Generation and Thermoelastic Damping in the In-plane Vibration of Microring Resonators." Entropy 21, no. 7: 631.

Journal article
Published: 25 August 2017 in Sustainability
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With the intensification of global warming and the levy of energy tax, more industries are paying attention to energy saving and reduction of carbon footprint. For the food industry, energy cost in the supply chain of perishable food is quite high because of cold-chain transport and storage. Therefore, the efficacies of cold chain management and inventory control are the key factors that increase the efficiency of food supply chain and make it more ecological. This research analyzes the degradation process of perishable food and determines the optimal temperature of the cold chain as well as the optimal price to maximize the channel profit. We prove that there is an optimal price with a certain temperature and develop an efficient search algorithm to find the optimal temperature. We also perform sensitivity analyses to test which parameters affect the channel profit significantly. Numerical experiments are conducted to illustrate the proposed models.

ACS Style

Shuai Yang; Yujie Xiao; Yan Zheng; Yan Liu. The Green Supply Chain Design and Marketing Strategy for Perishable Food Based on Temperature Control. Sustainability 2017, 9, 1511 .

AMA Style

Shuai Yang, Yujie Xiao, Yan Zheng, Yan Liu. The Green Supply Chain Design and Marketing Strategy for Perishable Food Based on Temperature Control. Sustainability. 2017; 9 (9):1511.

Chicago/Turabian Style

Shuai Yang; Yujie Xiao; Yan Zheng; Yan Liu. 2017. "The Green Supply Chain Design and Marketing Strategy for Perishable Food Based on Temperature Control." Sustainability 9, no. 9: 1511.