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Effect of dietary protein sources and storage temperatures on egg internal quality of stored shell eggs

Animal Nutrition 2015年第4期1卷 299-304页

作者： Xiaocui Wang Shugeng Wu Haijun Zhang Hongyuan Yue guanghai Qi Jie Li Key Laboratory of Feed Biotechnology of Ministry of Agriculture Feed Research Institute Chinese Academy of Agricultural Sciences College of Animal Nutrition and Feed Science Northeast Agricultural University

This study was conducted to evaluate the effects of various protein sources(soybean meal, SBM; cottonseed protein, CSP; double-zero rapeseed meal, DRM) on the internal quality(Haugh unit, yolk index,albumen pH,yolk hardness and yolk springiness) of eggs when stored at either 4 or 28℃ for 28 d. A total of 288 laying hens(32 wk of age) were randomly allotted to 6 treatment groups(4 replicates per treatment) and fed diets containing SBM, CSP, or DRM individually or in combination with equal crude protein content(SBM-CSP, SBM-DRM, and CSP-DRM) as the protein ingredient(s). A 6 x 2 factorial arrangement was employed with dietary types and storage temperatures(4 and 28℃) as the main effects. After 12 wk of diet feeding, a total of 216 eggs was collected for egg internal quality *** results showed as follows: 1) lower egg quality was observed in the DRM group compared with the other groups when stored at 4 and 28℃ for 28 d(P < 0.05), while there was no difference in egg internal quality among the other groups. 2) The CSP diet resulted in higher yolk hardness compared with the other diets when eggs were stored at 4℃ for 28 d(P < 0.05). Lower Haugh unit was observed in the DRM and SBM-DRM groups compared with the other groups when eggs were stored for 28 d at 4℃(P < 0.05).3) Yolk breakage occurred in the DRM group and eggs could not be analyzed for egg internal quality when stored at 28℃ for 28 d. The overall results indicated that CSP or DRM as the sole dietary protein source for laying hens may adversely affect the internal quality of stored eggs as compared with the SBM diet, and half replacement of CSP combined with SBM may maintain similar egg quality to SBM diet alone for eggs stored under refrigerated conditions.

关键词： Cottonseed protein Double-zero rapeseed meal Chicken egg Storage temperature Egg quality

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PHASE STRUCTURE OF W-DOPED NANO-TiO2 PRODUCED BY SOL-GEL METHOD

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China Particuology 2005年第4期3卷 233-236页

作者： Yucheng Wu Xiaoye Hu Ting Xie guanghai Li Lide Zhang Faculty of Materials Science and Engineering Hefei University of Technol Hefei 230009 P. R. China Institute of Solid State Physics Chinese Academy of SciencesHefei 230031 P. R. China

With Ti（OBu）4 as precursor, and HAc as complexing agent, pure and W-doped TiO2 gelatins were prepared by a sol-gel method. During the process of gel formation, metal ions were dispersed in the porous TiO2 matrix. Then, powders of nano-TiO2 and W-doped nano-TiO2 were prepared by drying, grinding and heat treatment at different temperatures. The grain size and structure of the samples, pure TiO2 and W-doped, and treated at different temperatures were studied by X-ray diffraction （XRD）, Beckman Coulter Sorption Analysis and TEM. Results showed that, with increasing temperature, the TiO2 transformed from anatase to rutile and the grain size increased. This transformation and grain growth of TiO2 could be retarded by doping with W.

关键词： nano-TiO2 W sol-gel dope

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Oxide Coated Cathode Plasma Source of Linear Magnetized Plasma Device

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Plasma Science and Technology 2016年第9期18卷 918-923页

作者： HU guanghai JIN Xiaoli YUAN Lin ZHANG Qiaofeng XIE Jinlin LI Hong LIU Wandong Department of Modern Physics University of Science and Technology of China Hefei 230026 China

Plasma source is the most important part of the laboratory plasma platform for fundamental plasma experimental research. Barium oxide coated cathode plasma source is well recognized as an effective technique due to its high electron emission current. An indirectly heated oxide coated cathode plasma source has been constructed on a linear magnetized plasma device. The electron emission current density can reach 2 A/cm2 to 6 A/cm2 in pulsed mode within pulse length 5-20 ms. A 10 cm diameter, 2 m long plasma column with density 10is m-3 to 1019 m3 and electron temperature Te --~ 3-7 eV is produced. The spatial uniformity of the emission ability is less than 4% and the discharge reproducibility is better than 97%. With a wide range of the plasma parameters, this kind of plasma source provides great flexibility for many basic plasma investigations. The detail of construction and initial characterization of oxide coated cathode are described in this paper.

关键词： oxide coated cathode plasma source magnetized plasma pulse discharge

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Analysis on Driving Forces behind Community Participation in Heritage Site Protection and Tourism Development

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Journal of Landscape Research 2015年第4期7卷 31-34页

作者： HUANG Qin FU guanghai College of Tourism and Urban-Rural Planning Chengdu University of Technology

This paper applied literature research, model analysis, considered current community-participated tourism development, established a four driving forces model on the basis of analyzing the driving forces for community participation in heritage site protection and tourism development. The driving forces and applicability of community participation in heritage site protection and tourism development from the perspectives of interests drive, government pushing, tourism development attraction and environmental protection pressure.

关键词： Community participation Heritage site Driving force

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Effects of key species mud snail Bullacta exarata (Gastropoda) on oxygen and nutrient fluxes at the sediment-water interface in the Huanghe River Delta, China

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Acta Oceanologica Sinica 2019年第8期38卷 48-55页

作者： Baoquan Li Tjeerd J. Bouma Quanchao Wang Laura M. Soissons Francesco Cozzoli guanghai Feng Xiaojing Li Zhengquan Zhou Linlin Chen Yantai Institute of Coastal Zone Research Chinese Academy of Sciences Yantai 264003 China Department of Spatial Ecology Royal Netherlands Institute for Sea Research (NIOZ-Yerseke) Yerseke 140 4400 AC The Netherlands University of Applied Sciences Vlissingen 4382 NW The Netherlands University of Chinese Academy of Sciences Beijing 100049 China Dawenliu Management Station of Yellow River Delta National Nature Reserve Dongying 257500 China

Since the mud snail Bullacta exarata was introduced for economic aquaculture in the Huanghe River(Yellow River) Delta in 2001, its quick population growth and expanded distribution make it a key-species in the intertidal zone of this area. This significantly contributed to the economic income of the local people, but its potential ecological impact on the benthic ecosystem remains unknown. A mesocosm study was conducted to test whether its bioturbation activities affect the microphytobenthos(MPBs;i.e., sedimentary microbes and unicellular algae)productivity and the nutrient exchange between the sediment-water interface. Our results show that the mud snail significantly impacted the dissolved oxygen(DO) flux across the sediment-water interface on the condition of normal sediment and light treatment, and significantly increased the ammonium efflux during recovery period in the defaunated sediment and dark treatment. The presence of micro-and meiofauna significantly increased the NH4-N flux in dark treatment. Whereas, in light treatment, these small animals had less effects on the DO and NH4-N flux between sediment-water interface. Our results provide better insight into the effect of the mud snail *** on the ecosystem functioning via benthic fluxes.

关键词： bioturbation mud snail Bullacta exarata oxygen flux nutrient flux benthic metabolism Huanghe River(Yellow River) Delta

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Numerical Modelling Sediment-Bacteria Interaction Processes in the Severn Estuary

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Journal of Water Resource and Protection 2011年第1期3卷 22-31页

作者： guanghai Gao Roger A. Falconer Binliang Lin 不详

Faecal bacteria exist in both free-living and attached forms in estuarine waters. The deposition of sediments can take faecal bacteria out of the water column and to the bed. The sediments can subsequently be re-suspended to the water column, which can then lead to re-suspension of the faecal bacteria of the attached forms back to the water column. Therefore, the fate and transport of faecal bacteria is highly related to the governing sediment transport processes, particularly where these processes are significant, such as the Severn Estuary, UK. However, little attempt has been made to model such processes in terms of predicting the impact of the sediment fluxes on faecal bacteria levels. Details are given of the refinement of a numerical model of faecal bacteria transport, where the sediment transport processes are significant. After testing the sediment-bacteria interaction model favourably against known results in previous study, the model was applied to the Severn Estuary and Bristol Channel, UK, to investigate the impact of suspended sediment fluxes on the corresponding faecal bacteria transport processes. The model predictions have proved to be encouraging, with the results being compared to a traditional faecal bacteria modelling approach, where sediment bacteria interactions were not included. The new model provides improved predictions of faecal bacteria concentrations when sediment transport is included and for the Bristol Channel Severn Estuary it can be seen that the effects of the sediments on the bacterial levels in the water column can be significant.

关键词： Numerical Modelling Faecal Bacteria Sediment Transport Enterococci

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基于磁通不对称分布的串联电弧故障检测研究

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仪器仪表学报 2019年第3期40卷 54-61页

作者：鲍光海江润福州大学电气工程与自动化学院福州350108 新能源发电与电能变换福建省高校重点实验室福州350108

目前串联电弧故障检测以主线路电流为判断对象,该方法容易受非线性负载正常工作电流奇异性的影响而造成误判;而且小功率支路的电弧故障特征容易被干路电流"淹没"而造成漏判。为了解决该问题,根据电弧高频电流电磁耦合机理,提出一种基于... 详细信息

目前串联电弧故障检测以主线路电流为判断对象,该方法容易受非线性负载正常工作电流奇异性的影响而造成误判;而且小功率支路的电弧故障特征容易被干路电流"淹没"而造成漏判。为了解决该问题,根据电弧高频电流电磁耦合机理,提出一种基于L-N线不对称分布和高阶累积量识别的检测方法。通过分析电弧熄灭重燃时高频剩余磁通的耦合信号,利用高阶统计量工具计算出耦合信号的峭度值。对单一负载电弧故障、综合负载干路电弧故障和综合负载支路电弧故障等不同情况进行判断,得出统一峭度阈值。结果表明,该方法可有效检测和识别串联电弧故障。

关键词：串联电弧故障高阶累积量峭度不对称分布

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Safety reliability optimal allocation of food cold chain

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Agricultural Sciences 2013年第9期4卷 70-75页

作者： Yifeng Zou Ruhe Xie guanghai Liu Business School of Guangzhou University Guangzhou China

This paper applied the safety reliability of food cold chain logistics to establish reliability allocation model for cold chain systems, designed optimization algorithms, and made a case analysis. By applying system reliability allocation principle, this article firstly built safety reliability allocation model of food cold chain logistics system without cost constraint based on the safety reliability model of food cold chain logistics system, and then it set up optimal decision- making model of food cold chain logistics system with cost constraint using the functional relationship between the time, temperature of cold chain logistics and logistics costs. Next, according to the characteristics of the model, a heuristic algorithm was proposed to allocate safety reliability of the system to each cold chain unit so as to achieve the goal of operatingcosts optimization subject to assurance ofoverall safety reliability of the cold chain system. Taking the safety impact factor of food cold chain unit as a weight, the article also deduced the equation of reallocation of safety reliability of food cold chain system. In the end, these models were used to optimize the allocation of safety reliability in an example of Sushi cold chain process. It provided a new thought and method to optimally plan the unit safety of food cold chain system as well as reduce the cost of food cold chain.

关键词： Cold Chain Safety Reliability Food Logistics System Allocation Optimization

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Investigation of the compact torus plasma motion in the KTX-CTI device based on circuit analyses

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Plasma Science and Technology 2022年第2期24卷 36-44页

作者： Qilong DONG Defeng KONG Xiaohe WU yang YE Kun yang Tao LAN Chen CHEN Jie WU Sen ZHANG Wenzhe MAO Zhihao ZHAO Fanwei MENG Xiaohui ZHANG Yanqing HUANG Wei BAI Dezheng yang Fei WEN Pengfei ZI Lei LI guanghai HU Shoubiao ZHANG Ge ZHUANG School of Science Shihezi UniversityShihezi 832003People's Republic of China Institute of Energy Hefei Comprehensive National Science CenterHefei 230031People's Republic of China Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China Department of Plasma Physics and Fusion Engineering University of Science and Technology of ChinaHefei 230026People's Republic of China School of Computer Science and Information Engineering Hefei University of TechnologyHefei 230009People's Republic of China College of Physics and Electronic Engineering Hengyang Normal UniversityHengyang 421008People's Republic of China College of Electrical and Power Engineering Taiyuan University of TechnologyTaiyuan 030024People's Republic of China

Compact torus(CT)injection is one of the most promising methods for the central fuelling of next-generation reactor-grade fusion devices due to its high density,high velocity,and selfcontained magnetised structure.A newly compact torus injector(CTI)device in Keda Torus e Xperiment(KTX),named KTX-CTI,was successfully developed and tested at the University of Science and Technology in *** this study,first,we briefly introduce the basic principles and structure of KTX-CTI,and then,present an accurate circuit model that relies on nonlinear regression analysis(NRA)for studying the current waveform of the formation *** current waveform,displacement,and velocity of CT plasma in the acceleration region are calculated using this NRA-based one-dimensional point *** model results were in good agreement with the *** next-step upgrading reference scheme of the KTX-CTI device is preliminarily investigated using this NRA-based point *** research can provide insights for the development of experiments and future upgrades of the device.

关键词： compact torus(CT) circuit modelling nonlinear regression analysis(NRA) point model

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基于ResNeXt网络和迁移学习的非侵入式负荷监测

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电力系统自动化 2023年第13期47卷 110-120页

作者：鲍光海黄逸欣福州大学电气工程与自动化学院福建省福州市350108 福建省新能源发电与电能变换重点实验室福建省福州市350108

为了加快节能减排的建设和加强需求侧的用电管理,非侵入式负荷监测凭借其易实施性和可靠性等特点已成为研究热点,但目前的研究存在着低频数据负荷识别精度低、高频数据特征提取复杂及网络泛化性能差等问题。因此,提出基于ResNeXt网络和... 详细信息

为了加快节能减排的建设和加强需求侧的用电管理,非侵入式负荷监测凭借其易实施性和可靠性等特点已成为研究热点,但目前的研究存在着低频数据负荷识别精度低、高频数据特征提取复杂及网络泛化性能差等问题。因此,提出基于ResNeXt网络和迁移学习的非侵入式负荷监测,采用一维时间序列总功率通过格拉姆角场(GAF)算法转换为带有时间特性的二维图像作为输入,放入迁移学习下ResNeXt网络进行负荷识别。该方法采用现有电表采集的低频数据作为输入,减少数据输入维度并加入了时间特性,再将输入图像进行标准化处理后通过堆叠深层次的残差神经网络来学习负荷深层次信息,利用迁移学习将在ImageNet-1K数据集下已训练好的网络模型参数传入新的目标域,加快网络的收敛速度,提高负荷分类的识别准确率和网络的泛化性。最后,利用公开数据集AMPds和UK-DALE模拟不同用电场景验证了所提方法的高效性和泛化性。

关键词：非侵入式负荷监测图像编码格拉姆角场算法迁移学习残差神经网络

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