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现代食品科技 2017年第5期33卷 311-318页

作者：易建勇毕金峰彭健 Tamara Allaf Karim Allaf 中国农业科学院农产品加工研究所、农业部农产品加工综合性重点实验室北京100193 Laboratory of Engineering Science for Environment LaSIE-UMR-ONRS 7356 University of La RochelleLa Rochelle 17042France abcar-dic process BP12053 La Rochelle Cedex01 17010France

可控瞬时压差加工技术(Instant controlled pressure drop processing,法语为Détente instantannée contr?lée,简称dic),又称变温压差膨化技术,于1988年由法国学者发明。dic加工技术的原理是基于将处理仓内高压(或大气压力)瞬时下降... 详细信息

可控瞬时压差加工技术(Instant controlled pressure drop processing,法语为Détente instantannée contr?lée,简称dic),又称变温压差膨化技术,于1988年由法国学者发明。dic加工技术的原理是基于将处理仓内高压(或大气压力)瞬时下降到真空状态,利用这一过程中产生的热力学效应使物料内部水分快速闪蒸,实现体积膨胀或质构改性等目的。经dic技术处理后的农产品可获得多孔的组织结构和酥脆的口感。此外,dic技术的优点还体现在色泽、风味,以及较低的生产成本等方面。本文综述了国内外可控瞬时压差加工技术的研究和应用现状,重点介绍了dic在农产品质构改性、化学成分提取、杀菌消毒、食物脱敏、粮食干燥过程减损、生物能源制造、生物大分子改性和农产品干燥等方面的研究进展,分析了国内可控瞬时压差加工技术存在的主要问题,并对该技术未来的发展趋势进行了展望。

关键词：质构改性提取膨化干燥杀菌瞬时压差

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低VOC含量丙烯酸酯乳液聚合物合成方法研究

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广东化工 2009年第8期36卷 51-52,74页

作者：熊浩中山dic色料有限公司技术部广东中山528467

为了满足某些行业加工的要求,在传统合成树脂的基础上改良VOC,重新设计了适合行业加工要求的丙烯酸酯乳液聚合物,同时也考察了乳化剂、聚合工艺和脱臭工艺对残留单体的影响。结果表明,在预乳化体系中使用B组合物的乳化剂,采用氧化-还原... 详细信息

为了满足某些行业加工的要求,在传统合成树脂的基础上改良VOC,重新设计了适合行业加工要求的丙烯酸酯乳液聚合物,同时也考察了乳化剂、聚合工艺和脱臭工艺对残留单体的影响。结果表明,在预乳化体系中使用B组合物的乳化剂,采用氧化-还原引发体系聚合工艺,并在聚合完成后,加入叔丁基过氧化氢(TBHP)和连二亚硫酸钠(保险粉)来消除体系中残留的微量单体,完全可以得到接近净味的乳液树脂,最终符合相关的行业测试标准。

关键词：丙烯酸酯乳液聚合物乳化剂氧化-还原叔丁基过氧化氢连二亚硫酸钠

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Plain metallic biomaterials:opportunities and challenges

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Regenerative Biomaterials 2023年第1期10卷 140-147页

作者： Jiazhen Zhang Bao Zhai Jintao Gao Zheng Li Yufeng Zheng Minglong Ma Yongjun Li Kui Zhang Yajuan Guo Xinli Shi Bin Liu Guobiao Gao Lei Sun Center for Medical Device Evaluation National Medical Product AdministrationBeijing 100081China Guangdong-Hong Kong-Macao Greater Bay Area Center for Medical Device Evaluation and Inspection of NMPAShenzhen 518045China School of Materials Science and Engineering Peking UniversityBeijing 100871China State Key Laboratory of Nonferrous Metals and process GRINM Group Corporation Limited(General Research Institute for Nonferrous Metals)Beijing 100088China

The‘plainification of materials’has been conceptualized to promote the sustainable development of *** perspective,for the first time in the field of biomaterials,proposes and defines‘plain metallic biomaterials(PMBs)’with demonstrated research and application case studies of pure titanium with high strength and toughness,and biodegradable,fine-grained and high-purity ***,after discussing the features,benefits and opportunities of PMBs,the challenges are analyzed from both technical and regulatory *** perspectives on PMB-based medical devices are also provided for the benefit of future research,development and commercialization.

关键词： plainification metallic biomaterials regulatory science medical devices pure titanium high-purity magnesium

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Characteristics of dissolved inorganic carbon in produced water from coalbed methane wells and its geological significance

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Petroleum Exploration and Development 2020年第5期47卷 1074-1083页

作者： YANG Zhaobiao QIN Yong QIN Zonghao YI Tongsheng LI Cunlei ZHANG Zhengguang Key Laboratory of Coalbed Methane Resources and Reservoir Formation process Ministry of EducationChina University of Mining and TechnologyXuzhou 221008China School of Resource and Geosciences China University of Mining and TechnologyXuzhou 221116China Guizhou Research Center of Shale Gas and CBM Engineering Technology Guiyang 550009China

Based on long-term dynamic tracing of dissolved inorganic carbon(dic)and stable carbon isotope(δ13Cdic)in produced water from 20 coalbed methane(CBM)wells in western Guizhou,the spatial-temporal dynamic variations ofδ13Cdic of the GP well group produced in multi-layer commingled manner were analyzed,and the relationship between the value ofδ13Cdic and CBM productivity was *** produced water samples of typical wells in the GP well group were amplified and sequenced using 16S rDNA,and a geological response model ofδ13Cdic in produced water from CBM wells with multi-coal seams was put *** research shows that:δ13Cdic in produced water from medium-rank coal seams commonly show positive anomalies,the produced water contains more than 15 species of methanogens,and Methanobacterium is the dominant *** dominant methanogens sequence numbers in the produced water are positively correlated withδ13Cdic,and the positive anomaly of v is caused by reduction of methanogens,and especially hydrogenotrophic *** segmentation of sedimentary facies and lithology in stratum with multi-coal seams will result in permeability and water cut segmentation,which will lead to the segmentation ofδ13Cdic and archaea community in produced water,so in the strata with better permeability and high water cut,theδ13Cdic of the produced water is abnormally enriched,and the dominant archaea is mainly *** the strata with weak permeability and low water cut,theδ13Cdic of the produced water is small,and the microbial action is *** shallow layer close to the coal seam outcrop is likely to be affected by meteoric precipitation,so theδ13Cdic of the produced water is *** geological response model ofδ13Cdic in produced water from multi-coal seams CBM wells in the medium-rank coal reveals the geological mechanism and microbial action mechanism of theδ13Cdic difference in the produced water from the multi-coal seams CBM *** also provides effect

关键词： coalbed methane produced water from coal seam dissolved inorganic carbon stable carbon isotope archaea community microbial gene CBM productivity geological response model

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