Abstract. Process planning and scheduling are important stages in manufacturing, and good strategies can significantly improve the energy performance of manufacturing to achieve sustainability. In this paper, an innovative optimization approach has been developed to facilitate sustainable process planning and scheduling. In the approach, honey-bee mating and annealing processes are simulated to optimize multi-objectives including energy consumption, makespan and the balanced machine utilization. Experiments on practical cases show that the optimization results from this approach are promising in comparison with those from a genetic algorithm, a honey bee mating optimization algorithm, ant colony optimization and a simulated annealing algorithm, respectively.

Abstract. Model security for collaborative product development in a networked environment (or called networked manufacturing, grid manufacturing, and cloud manufacturing) is an important and also challenging research issue. An encryption based partial sharing approach for CAD models has been developed and presented in this paper. First, a random invertible decimal matrix to support the encryption approach is proposed, with which parts of a CAD model can be selected flexibly by the model owner for encrypting by different keys; Second, in order to guarantee the security, a dual-key mode and a key based authorization mechanism are proposed. Based on the model, different levels of security are achieved based on different key spaces, and the key based authorization mechanism is used for the model owner to control the partial access of the CAD model flexibly.

SummaryThe aim of this study was to examine the effects of different sources and levels of | INTRODUCTIONBirds were vulnerable to high temperatures during summer because of the insufficient heat dissipation after a meal, especially possible for waterfowl (e.g., duck). Heat stress (HS) badly effects on both immune function and production (Humphrey, 2006). Further, HS results in negative effects on growth performance and the relevant mechanisms were explored to mitigate the negative effects (Quinteirofilho et al., 2010;Quinteiro-Filho et al., 2012;Sandhu, Mirza, Afzal, & Mukhtar, 2012;Song et al., 2013). On the cellular level, high temperature promotes proteolysis and induces the production of excessive free radicals which caused oxidative stress damaging different organs of the body (Del Vesco et al., 2015), such as the liver and intestine. | MATERIALS AND METHODSThe study was conducted in a research farm (Hebei, China), and all procedures described here were approved by the Institutional Animal Care and Use Committee of the China Agricultural University (Beijing, China). | Animals and dietsA total of 720 four-day-old Peking ducks were randomly allotted to Table 1. And, the highest, the lowest and the comfortable temperature during study are shown in Table 2. In addition, mortality was recorded daily during the entire trial. And, mortality was almost no. | Sample collectionSix birds per treatment were randomly selected at 16 and 35 day age and euthanized by CO 2 inhalation and decapitation. Liver samples (~2 g) were collected and separated into two portions. Tissue samples were snap frozen immediately in liquid nitrogen and then stored at −80°C and −40°C until further qRT-PCR and protein carbonylation content analyses respectively. Tissue samples (~5-8 mm) were taken