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Effects of Fermented Rapeseed Meal on Growth Performance and Serum Parameters in Ducks
Fazhi, Xu,Lvmu, Li,Jiaping, Xu,Kun, Qian,Zhide, Zhang,Zhangyi, Liang Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.5
A trial was performed to study the effects of feeding a diet containing solid-state fermentation rapeseed meal (FRSM) replaced soybean meal (SBM) on growth performance and serum biochemistry parameters of ducks and then to determine the appropriate proportion of soybean meal replacement. The 75% rapeseed meal and 25% blood meal were mixed and inoculated with the Lactobacillus plantarum and Bacillus subtilis. Over the 21-day fermentation, isothiocyanates were reduced from 72.7 to 14.1 mmol/kg. A total of 1,280 fifteen-day-old Cherry Valley ducks were randomly allocated into 4 dietary treatments, 4 replicate groups of 80 ducks each for a 30-day feeding trial. In four treatment groups, fermentation rapeseed meal replaced soybean meal at 0, 33, 67 or 100%, respectively. Results showed that feed intake of ducks fed 100% FRSM was greater (p<0.05) than SBM and partial FRSM in both the finishing period (31-45 d) and entire feeding period (15-45 d). Daily gain increased gradually in the three treatment groups with augmenting FRSM over in the whole study period. In the growing period (15-30 d), compared with the SBM group, phosphorus and calcium content in serum from the FRSM group was improved (p<0.05). Total protein concentration was lower in ducks fed 100% FRSM than SBM and 33% FRSM (p<0.05). Concentrations of IgM were dramatically higher for animals fed 100% FRSM than in the SBM, 33% FRSM and 67% FRSM groups. In the finishing trail stage (31-45 d), only serum IgG content in 100% FRSM group was improved (p<0.05). Therefore, rapeseed meal fermented with Lactobacillus plantarum and Bacillus subtilis is a promising alternative protein source and fermented rapeseed meal can completely replace soybean meal in duck diet and potentially reduce the cost of duck production.
Fazhi Xie,Feng-Jun Zhang,Han Xuan,Yejun Ge,Yin Wang,Guolian Li,Lei Zhu,오원춘 한국세라믹학회 2014 한국세라믹학회지 Vol.51 No.5
In this work, a new method that utilizes L-cysteine salicylaldehyde Schiff-base modified macroporous polystyrene resin (PSCSC)as an effective sorbent has been developed for preconcentration of trace cadmium and lead in environmental water samples. The effect of pH, the contact time, the elution conditions, the flow rate, the initial concentration of target metal ions, andthe effects of interfering ions on the preconcentration of the analytes were investigated. The maximum adsorption capacity of PSCSCunder optimum conditions for cadmium and lead were found to be 6.03 - 18.17 mg/g and 12.58 - 36.13 mg/g when the initialconcentration of metal ions between 5.0 - 90 mg/L. The limits of detection for cadmium and lead were 2.46 ng/L and 0.52 μg/L,with a preconcentration factor of 200. The developed method has been validated by analyzing certified reference material andsuccessfully applied for the enrichment and determination of trace cadmium and lead from environmental water samples.
Sorption Behavior and Mechanism of Phosphate onto Natural Magnesite
Xie, Fazhi,Hu, Tingting,Oh, Won-Chun,Sheng, Dandan,Li, Haibin,Wang, Xuechun,Xie, Zhiyong,Li, Guolian,Han, Xuan,Xie, Wenjie,Sun, Mei Materials Research Society of Korea 2017 한국재료학회지 Vol.27 No.3
Removal of phosphate from environmental water has become more important to prevent eutrophication. In the present study, sorption behavior of phosphate onto magnesite was investigated under different conditions. The optimum pH of phosphate adsorption was determined to be 6.0. The adsorption capacity was found to decrease with increasing temperature, which indicates that a low temperature was beneficial for phosphate adsorption. The sorption capacity for phosphate was found to be 10.2 mg/g at an initial concentration of 100 mg/L and a dose of 2 g/L. The first order kinetic equation and Freundlich isotherm model fit the data well. Phosphate adsorption on magnesite was explained by electrostatic attraction and weak physical interactions.
Xie, Fazhi,Zhang, Fengjun,Xuan, Han,Ge, Yejun,Wang, Yin,Li, Guolian,Zhu, Lei,Oh, Won-Chun The Korean Ceramic Society 2014 한국세라믹학회지 Vol.51 No.5
In this work, a new method that utilizes L-cysteine salicylaldehyde Schiff-base modified macroporous polystyrene resin (PS-CSC) as an effective sorbent has been developed for preconcentration of trace cadmium and lead in environmental water samples. The effect of pH, the contact time, the elution conditions, the flow rate, the initial concentration of target metal ions, and the effects of interfering ions on the preconcentration of the analytes were investigated. The maximum adsorption capacity of PS-CSC under optimum conditions for cadmium and lead were found to be 6.03 - 18.17 mg/g and 12.58 - 36.13 mg/g when the initial concentration of metal ions between 5.0 - 90 mg/L. The limits of detection for cadmium and lead were 2.46 ng/L and $0.52{\mu}g/L$, with a preconcentration factor of 200. The developed method has been validated by analyzing certified reference material and successfully applied for the enrichment and determination of trace cadmium and lead from environmental water samples.
A multi-user Selective Undo/Redo Approach for Collaborative CAD Systems
Yuan Cheng,Fazhi He,Xiantao Cai,Yilin Chen (사)한국CDE학회 2013 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8
The engineering design process is a creative process and the designers must apply Undo/Redo to modify the CAD model repeatedly to explore new solutions. Undo/Redo has become one of most important facilities in interactive graphics/CAD systems. Undo/Redo in collaborative CAD system is also very helpful for collaborative awareness among a group of cooperative designers to eliminate misunderstanding and recover from design error. However, Undo/Redo in collaborative CAD is much more difficult than that in single-user CAD. For an example, a single erroneous operation can be propagated to several remote sites since the concurrency of CAD operations. This paper presents a multi-user Undo/Redo approach to maintain operation intention and collaborative awareness in full distributed collaborative CAD systems. The paper proposes the composition of 3D designing artifacts and adopts a tree-like structure for representing the combination of features/sub-configurations and the dependency relationship among modeling operations. Based on the feature combination hierarchy, a multi-user selective Undo/Redo approach for full replicated collaborative CAD systems is studded. The proposed method uses site identification and state-vector to track the undo operations. Intention preservation and consistency maintenance are both promised with our method.
Fengjun Zhang,Fazhi Xie,Hongzhang Wu,Hao Wang,김동백 한국비교정부학회 2009 한국비교정부학보 Vol.13 No.1
Bilingual education is in an inevitable trend of China’s higher education linking with international standards and implementing of quality education, it is also the current education reform hotspot. Bilingual education is the education methods of simultaneous using of mother tongue and non‐native speakers language to teach a non‐foreign language courses. The environment effect of bilingual education was analyzed based on a questionnaire in this paper. A lot of practical suggestions and concrete construction measures were put forward in three aspects of bilingual education: classroom environment, school environment and social environment. To this end, we should make bilingual education mode diversification, intensify efforts to train teachers, and build a good bilingual education and learning environment.
One-Dimensional Topological Entities Matching for Heterogenous Data Exchange
Xiaoxia Li,Fazhi He,Xiantao Cai,Zhiyong Huang (사)한국CDE학회 2010 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8
In the process of feature-based data exchange (FBDE), one-dimensional topological entities are always used as references or operational objects in the source CAD system. To ensure FBDE, the corresponding one-dimensional topological entities in the target CAD system should be found to match the source ones. In this paper we describe in detail an algorithm for supporting the match for FBDE. The algorithm has been used in the procedure recovery architecture. It has efficiently improved the import algorithm used in the UPR.
Efficient Random Saliency Map Detection
Zhiyong Huang,Fazhi He,Xiantao Cai (사)한국CDE학회 2010 한국CAD/CAM학회 국제학술발표 논문집 Vol.2010 No.8
Most image retargeting algorithm rely heavily on valid saliency map detection to proceed. But the inefficiency of high quality saliency map detection severely restricts applications of these image retargeting methods. In this paper, we describe a random algorithm for efficient context-aware saliency map detection. Our method is a multiple level saliency map detection algorithm which integrates multiple level coarse saliency maps into result saliency map and selectively updates unreliable regions of saliency map to refine detection results. With the virtue of randomized search, our method just needs very little extra memory beyond the input image and result, map, and does not need build auxiliary data structures to accelerate saliency map detection. We implemented our algorithm on GPU, the performance of the proposed algorithm was demonstrated on a variety of images and video sequences, and was compared with the state of the art in image processing.
A multi-user selective undo/redo approach for collaborative CAD systems
Cheng, Yuan,He, Fazhi,Xu, Bin,Han, Soonhung,Cai, Xiantao,Chen, Yilin Society for Computational Design and Engineering 2014 Journal of computational design and engineering Vol.1 No.2
The engineering design process is a creative process, and the designers must repeatedly apply Undo/Redo operations to modify CAD models to explore new solutions. Undo/Redo has become one of most important functions in interactive graphics and CAD systems. Undo/Redo in a collaborative CAD system is also very helpful for collaborative awareness among a group of cooperative designers to eliminate misunderstanding and to recover from design error. However, Undo/Redo in a collaborative CAD system is much more complicated. This is because a single erroneous operation is propagated to other remote sites, and operations are interleaved at different sites. This paper presents a multi-user selective Undo/Redo approach in full distributed collaborative CAD systems. We use site ID and State Vectors to locate the Undo/Redo target at each site. By analyzing the composition of the complex CAD model, a tree-like structure called Feature Combination Hierarchy is presented to describe the decomposition of a CAD model. Based on this structure, the dependency relationship among features is clarified. B-Rep re-evaluation is simplified with the assistance of the Feature Combination Hierarchy. It can be proven that the proposed Undo/Redo approach satisfies the intention preservation and consistency maintenance correctness criteria for collaborative systems.