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Combined Insights from Leachate Structure and Microstructure Characteristics for Eating Quality of Convenience Rice Processed by Super-Heated and Pressurized Steam Technologies
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作者 Mingyo HA Hyo-Young JEONG +1 位作者 Ju Hun LEE Hyun-Jung CHUNG 《Rice science》 SCIE CSCD 2024年第4期475-488,I0035,I0036,共16页
Convenience rice has become widely popular due to its easy availability for cooking. This study investigated the starch structure and composition of leachate and the microstructure of reheated convenience rice using n... Convenience rice has become widely popular due to its easy availability for cooking. This study investigated the starch structure and composition of leachate and the microstructure of reheated convenience rice using novel processing technologies: super-heated steaming(SHS), auto-electric cooking(AEC), and pressurized-steam cooking(PSC). Additionally, the effect of two different target water contents(58% and 63%) was also evaluated. The PSC_63% sample had the highest total solids and amylopectin amount in the leachate. The amylopectin amount in the leachate differed significantly based on the targeted water content. Morphological characterization revealed that the swelling of starch and the coated layer on the surface of rice grains were most pronounced in the PSC_63% sample due to the pressure processing. The textural hardness of the AEC_58% sample was much higher than that of the other samples. The PSC_63% sample had the highest textural adhesiveness value, which can be attributed to the highest amylopectin amount in the leachate. Sensory characterization showed that the PSC_63% sample had the highest glossiness, whiteness, moistness, and overall acceptability. The principal component analysis score plots presented substantial differences in the leachate and textural and sensory characteristics of reheated convenience rice among the different processing technologies. 展开更多
关键词 reheated convenience rice starch structure LEACHATE multi-scale structure eating quality processing technology
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Technology Transfer as the Process of Pharmaceutical Quality System: Modelling Technology Transfer as a Process Strategy
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作者 Valeriy Nikityuk Eugene Shakin Tatiana Yamikh 《Journal of Pharmacy and Pharmacology》 2017年第6期299-313,共15页
The recent GMP (good medical practice) rules actualisation and its requirements introduction widened the GMP guidelines for every life cycle of medicinal products, including the stage of processes scaling and techno... The recent GMP (good medical practice) rules actualisation and its requirements introduction widened the GMP guidelines for every life cycle of medicinal products, including the stage of processes scaling and technology transfer. This requires the technology transfer process to be regulated as the part of pharmaceutical quality system and the following development of corresponding written procedures. The following publication is dedicated to the development of TTP (technology transfer process) and its accessible graphic formalisation alongside the definition of main stages and possible procedures limited by the offered model. According to the actualized GMP rules, the technology transfer is an essential part of pharmaceutical quality system at a modem pharmaceutical company. 展开更多
关键词 MEDICINE life cycle technology transfer process scaling pharmaceutical quality system quality system procedures.
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Processing Technology and Quality of Low-fluoride Brick tea 被引量:1
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作者 李兰英 王云 +4 位作者 尧渝 马伟伟 李春华 张厅 刘飞 《Agricultural Science & Technology》 CAS 2017年第9期1680-1685,共6页
In order to promote the quality of brick tea and reduce its fluoride content, the fluoride contents in leaves of 25 tea varieties at the .stage of one bud and five leaves were determined by the method of fluodde-ion s... In order to promote the quality of brick tea and reduce its fluoride content, the fluoride contents in leaves of 25 tea varieties at the .stage of one bud and five leaves were determined by the method of fluodde-ion selective electrode method. The results showed that the fluodde contents in the 25 varieties were in the range of 181.92-345.06 mg/kg, end the fluoride content in 'Zhongcha 302' was the lowest. Based on traditional production process of brick tea, 3 new low-fluoride brick tea production processes with 'Zhongcha 302' as the raw material at the stage of one bud and five leaves were constructed. The fluoride content, physicochemical in- dex, sensory end main chemical contents in the brick tea samples were determined. The best processing process of Iow-fluodde brick tea was process 3, which included aldng, fixing, rolling, second fixing, second roiling, sun-drying, pile-fermentation, steaming, pile-fermentation, drying and shaping into brick by vapor treating. The re- sults showed that the fluoride content and physicochemical index of the brick tea sample of the third low-fluoride brick tea production process accorded with National Standard GB/T 9833.4-2013. The sensory evaluation of the brick tea sample was better than that of brick tea manufacture by the traditional process. The water extract, tea polyphenols, amino acids, caffeine and water-soluble sugar in the brick tea sample increased by 9.41%, 36.39%, 26.94%, 27.23% and 15.29%, respectively. Low-fluodds bdck tea could be produced by selecting low fluoride tea varieties, controlling the tondemess of fresh leaves, and optimizing the processing technique. 展开更多
关键词 Low-fluodde varieties Low-fluoride brick tea processing technology quality
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The Multiplicative Analytic Hierarchy Process (MIAHP) as a Quality Criterion Determining the Technological Value of the Egyptian Cotton Varieties
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作者 Khaled M. Hussein AbdElbaset A. Hassan Mostafa M. Kamal 《American Journal of Plant Sciences》 2010年第2期106-112,共7页
This study was undertaken to develop a numerical process that can be used as a quality criterion to determine the technological value of the Egyptian cotton varieties, which in turn would denote the end-use of their f... This study was undertaken to develop a numerical process that can be used as a quality criterion to determine the technological value of the Egyptian cotton varieties, which in turn would denote the end-use of their fibers. However the material used in the study comprised the 6 Egyptian cotton varieties Giza70, Giza80, Giza86, Giza88, Giza90 and Giza92. According to the local practice in Egypt, Giza70, Giza88 and Giza92 belong to the Extra-Long Staple (ELS) category, while Giza80, Giza86 and Giza90 are included under the Long Staple (LS) category. The regression analysis of the relationships between fiber properties and yarn skein strength (lea product) of the 2 carded ring counts 40 and 50 Ne, was employed to drive an equation for calculating the Multiplicative Analytic Hierarchy Process (MIAHP) values. The values of the MIAHP have been used as numerical determinations of the technological values of the Egyptian cotton varieties. Nevertheless, the findings of this study clarified that with respect to the criteria weights, the pair-wise comparisons denoted that fiber length properties of Egyptian cotton ranked first where they revealed the most dominant effect on yarn strength, while tensile properties ranked second with a relative weight close to that of fiber length. On the contrary, the relative weight of fiber fineness (micronaire reading) was found to be marginal. With regard to the relative weight of sub-criterion, the pair-wise comparisons indicated that the role of fiber tenacity as a determinant of yarn strength is much superior to that of fiber elongation. Further the global weights of the sub-criterion of fiber length pointed out that the UHML (upper half mean length) plays an important role in determining yarn strength of the Egyptian cotton comparing with either the UI (uniformity index) or the SFC (short fiber content). In conformity with the values of the MIAHP, it was found that in the order of descending rank, Giza88 ranked first, followed by Giza92, Giza70, Giza86, Giza80 and finally Giza90. 展开更多
关键词 ANALYTIC HIERARCHY process Cotton Fiber quality Technological Value
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Granulation process analysis technologies and potential applications in traditional Chinese medicine 被引量:1
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作者 Tongcan Cui Yizhe Hou +3 位作者 Huimin Feng Sijun Wu Wenlong Li Zheng Li 《Acupuncture and Herbal Medicine》 2022年第1期9-24,共16页
Pharmaceutical production is changing from batch production to continuous production,during which granulation is one of the most important unit operations.The quality of mass-produced products is traditionally guarant... Pharmaceutical production is changing from batch production to continuous production,during which granulation is one of the most important unit operations.The quality of mass-produced products is traditionally guaranteed by conducting off-line testing,which cannot meet the demand of continuous production for real-time monitoring of critical process parameters and critical quality attributes(CQAs)of the pharmaceutical granulation technology.Since the U.S.Food and Drug Administration proposed process analytical technology(PAT)in 2004,many PAT tools have been developed to monitor the granulation process and provide information regarding the granulation operation conditions and endpoint determination.In this article,we review the recent research and application of two PAT modes in the granulation process,namely,single CQA and multi-CQA PAT,with the aim to provide references for comprehensively improving the technological level of the pharmaceutical granulation process.Furthermore,the potential applications in traditional Chinese Medicine are discussed. 展开更多
关键词 Critical process parameters Critical quality attributes Pharmaceutical granulation technology process analytical technology
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The Rice Processing Industry in Nepal: Constraints and Opportunities 被引量:2
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作者 Krishna Dev Joshi Santosh Upadhyay +3 位作者 Pashupati Chaudhary Suchit Shrestha Kamal Bhattarai Bhaba Prasad Tripathi 《Agricultural Sciences》 2020年第11期1060-1080,共21页
A rice mill survey covering diverse rice processing companies in terms of their milling output, type of technology and year of establishment was conducted to understand the current situation of the rice milling indust... A rice mill survey covering diverse rice processing companies in terms of their milling output, type of technology and year of establishment was conducted to understand the current situation of the rice milling industry and to identify enablers and barriers to its growth in Nepal. Coarse rice varieties dominate Nepal’s rice processing industry, with a 42% share by total weight, followed by medium rice (34%) and fine varieties (less than 7%). Polished white rice (<em>Arwa</em>) was the dominant rice type in Nepal in the survey, followed by parboiled and steamed rice. The price and profit margins increased from coarse to fine rice varieties and from <em>Arwa</em> to parboiled and steamed rice. The cost of milling also followed a similar trend. The rice milling industry in Nepal largely influences the adoption or non-adoption of any specific type of rice variety by dictating specific brands in the market and this has important implications for rice research and development. The rice processing industry of Nepal was unable to compete with the Indian rice milling industry because of: 1) low profit margins due to the high cost of rice production and procurement, 2) a lack of economies of scale, 3) a lack of milling technologies for long and extra-long and steamed rice in the country and a lack of investment to modernize rice milling technology, and 4) unavailability of paddy throughout the year locally. Millers were willing to upgrade their rice milling technology to include high throughput parboiling, steamed rice as well as long and extra-long grain rice. This will be a strategic decision in counteracting the ever-increasing rice imports in Nepal. We believe that the findings of the study will be vital for formulating an appropriate rice research, development and rice processing strategy for Nepal to achieve food and nutritional security and the Sustainable Development Goals. 展开更多
关键词 Rice Industry Grain quality Economy of Scale Rice Varieties Rice Imports Value Chain processing technology Efficiency Profit Margins New Strategy Nepal
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Application of quality by design in the current drug development 被引量:13
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作者 Lan Zhang Shirui Mao 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2017年第1期1-8,共8页
Quality by Test was the only way to guarantee quality of drug products before FDA launched current Good Manufacturing Practice. To clearly understand the manufacture processes, FDA generalized Quality by Design(QbD) i... Quality by Test was the only way to guarantee quality of drug products before FDA launched current Good Manufacturing Practice. To clearly understand the manufacture processes, FDA generalized Quality by Design(QbD) in the field of pharmacy, which is based on the thorough understanding of how materials and process parameters affect the quality profile of final products. The application of QbD in drug formulation and process design is based on a good understanding of the sources of variability and the manufacture process. In this paper,the basic knowledge of QbD, the elements of QbD, steps and tools for QbD implementation in pharmaceutics field, including risk assessment, design of experiment, and process analytical technology(PAT), are introduced briefly. Moreover, the concrete applications of QbD in various pharmaceutical related unit operations are summarized and presented. 展开更多
关键词 quality by design(QbD) process analytical technology(PAT) Critical quality attributes(CQA) DESIGN of experiment(DoE) Risk assessment Near infrared(NIR)spectroscopy
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Applications of quality by design(QbD) and its tools in drug delivery 被引量:2
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作者 Lan Zhang Shirui Mao 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2016年第1期144-145,共2页
Quality by Test (Qb T) was the only way to guarantee the quality of drug products before FDA launches current Good Manufacturing Practice (c GMP)[1], which is an approach without clear understanding of the processes. ... Quality by Test (Qb T) was the only way to guarantee the quality of drug products before FDA launches current Good Manufacturing Practice (c GMP)[1], which is an approach without clear understanding of the processes. In order to solve this problem,FDA generalized Quality by Design (QbD) in the field of pharmacy (2)In pharmaceutical industry, Qb D brings cost-efficiency and simplicity of manufacturing process into reality. 展开更多
关键词 quality by Design(QbD) Critical quality attributes(CQAs) DESIGN of experiment(DoE) process ANALYTICAL technology(PAT)
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A new PAT application: Optimization of processing methods for honeysuckle flower (Lonicerae Japonicae Flos) and wild honeysuckle flower (Lonicerae Flos) 被引量:1
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作者 Jiangbo Hao Zhisheng Wu +2 位作者 Weidong Li Zhongshuang Zhang Jinrui Gu 《Journal of Traditional Chinese Medical Sciences》 2018年第2期199-205,共7页
Objective:A novel processing analytical framework of Chinese Material Medica (CMM) includes breeding process analysis,planting process analysis,producing process analysis and manufacture process analysis.In order to s... Objective:A novel processing analytical framework of Chinese Material Medica (CMM) includes breeding process analysis,planting process analysis,producing process analysis and manufacture process analysis.In order to study this framework,we used quality control of honeysuckle flower (Lonicerae japonicae Flos) including diploid and tetraploid Lonicera japonica,and wild honeysuckle flower (Lonicerae Flos) including Lonicerae hypoglauca,Lonicerae confusa,Lonicerae fulvotomentosa and Lonicerae macranthoides as an example.Methods:A total of 360 samples were analyzed from three variables including species,growing areas,and optimization of processing methods.For quantitative analysis,chlorogenic acid (CA),isochlorogenic acid A (3,5-DCA),and isochlorogenic acid C (4,5-DCA) were measured with high performance liquid chromatography (HPLC).Results:The three organic acids contents are higher in wild honeysuckle flower than honeysuckle flower;L.japonica (tetraploid) is higher than L.japonica (diploid).Modern processing methods (kill-enzyme torrefaction and fixing machine drying) are popular in growing areas and are superior to traditional methods (sun and shade drying).Conclusions:Novel process analysis concepts in processing analytical technology (PAT) enriched the Chinese MateHal Medica contents. 展开更多
关键词 HONEYSUCKLE FLOWER WILD HONEYSUCKLE FLOWER processING ANALYTICAL technology quality control processING method
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Polyphenols, Carotenoids, Vitamin C Content in Tropical Fruits and Vegetables and Impact of Processing Methods
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作者 Emy Njoh Ellong Corinne Billard +1 位作者 Sandra Adenet Katia Rochefort 《Food and Nutrition Sciences》 2015年第3期299-313,共15页
Thirty-five fruits and seventeen vegetables from Martinique were evaluated for total phenol content (TPC), Vitamin C and carotenoid content. TPC, Vitamin C and carotenoid contents ranged from 11.7 to 978.6 mg/100g, 0.... Thirty-five fruits and seventeen vegetables from Martinique were evaluated for total phenol content (TPC), Vitamin C and carotenoid content. TPC, Vitamin C and carotenoid contents ranged from 11.7 to 978.6 mg/100g, 0.1 to 2853.8 mg/100g and 9.7 to 9269.7 μg/100g respectively. Fruits and vegetables from Martinique have equivalent or higher TPC, Vitamin C and carotenoid contents than fruits and vegetables from temperate climates. Cashew apple had high values for all three parameters (55.8 mg/100g of Vitamin C, 603 mg/100g of TPC and 924 μg/100g of carotenoids). Bassignac mango and mamey apple had the highest carotenoid contents, with 3800.3 and 3199.7 μg/100g respectively. Acerola had the highest Vitamin C and polyphenol contents with 2853.8 μg/100g and 727.4 mg/100g respectively. Pigeon peas had high values for all three parameters (569.2 mg/100g of Vitamin C, 978.6 mg/100g of TPC and 364.3 μg/100g of carotenoids). Pumpkin and watercress had the highest carotenoid content, with 9269.7 and 4339 μg/100g respectively. TPC, Vitamin C and carotenoid content were significantly impacted by processing techniques. TPC, Vitamin C and carotenoid contents decreased by up to 75.78%, 100% and 70.18% respectively, depending on the processing technique used. 展开更多
关键词 MARTINIQUE Fruits and VEGETABLES Total POLYPHENOLS VITAMIN C Carotenoids technology process FOOD Composition FOOD Analysis NUTRITIONAL quality
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Analysis and Suggestions for Process Control of Offset Platemaking
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作者 Vadim Sevryugin,Yuri Andreev (Prepress department,Moscow State University of Printing,Russian) 《中国印刷与包装研究》 CAS 2010年第S1期238-238,共1页
关键词 OFFSET PRINTING PLATE CTP technology process control of platemaking Basic working properties of PRINTING FORMS quality parameters of image ELEMENTS
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新质生产力的科学内涵、构成要素和制度保障机制 被引量:133
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作者 赵峰 季雷 《学习与探索》 CSSCI 北大核心 2024年第1期92-101,175,共11页
科学把握新质生产力的内涵需要回到其形成和发展的社会历史背景中。本文遵循历史唯物主义的分析逻辑,从技术形态、发展阶段和人类社会生产力演进三个层面,探寻新质生产力的丰富内涵;通过对劳动过程的剖析解构新质生产力的构成要素,并分... 科学把握新质生产力的内涵需要回到其形成和发展的社会历史背景中。本文遵循历史唯物主义的分析逻辑,从技术形态、发展阶段和人类社会生产力演进三个层面,探寻新质生产力的丰富内涵;通过对劳动过程的剖析解构新质生产力的构成要素,并分析其对社会再生产过程的影响;最后考察经济制度对新质生产力形成的重要作用。我们认为,新质生产力是新一轮产业技术革命及其战略性新兴产业集群形成的生产力,是新时代实现高质量发展必需的一类生产力,要融合提升传统生产力,展现新时代新活力。新质生产力的形成将对新时代社会生产组织方式和社会再生产过程产生重要影响。为形成新质生产力培育动力不仅要坚持创新驱动发展,还要依靠全面深化改革激发内生活力。中国共产党的领导是我国形成新质生产力的独有优势和根本保障。 展开更多
关键词 新质生产力 技术革命 高质量发展 劳动过程
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以功效物质为质量目标的中药生产过程质量控制研究与实践
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作者 肖伟 张欣 +2 位作者 徐芳芳 章晨峰 王振中 《南京中医药大学学报》 CAS CSCD 北大核心 2024年第10期1030-1038,共9页
中药生产过程质量控制是影响中药产品质量的关键,但中药成分的多样性和生产过程的复杂性给过程质量的精准控制带来巨大挑战。首先提出了以功效物质为核心的中药智能化控制理念,系统阐释了中药质量的科学内涵,为中药复杂成分体系“控什... 中药生产过程质量控制是影响中药产品质量的关键,但中药成分的多样性和生产过程的复杂性给过程质量的精准控制带来巨大挑战。首先提出了以功效物质为核心的中药智能化控制理念,系统阐释了中药质量的科学内涵,为中药复杂成分体系“控什么”“怎么控”提供了理论依据。同时,通过先进信息化、数字化和智能化技术,对中药生产过程开展了智改数转的研究和建设实践。最终建立了以功效物质为质量目标的中药生产过程质量控制体系,为解决过程质量控制难题提供了契机。 展开更多
关键词 中药生产 过程质量控制 功效物质 智能制造 过程分析技术
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油田采出水处理技术的研究进展
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作者 李哲 张璐 +2 位作者 梁舒娟 梁志龙 齐晗兵 《化学工程师》 CAS 2024年第3期59-62,103,共5页
在油田开采中,采出水的直接排放会对环境造成影响,通常需要经过深度处理后再排放或者回用。而油田采出水含油量高且含有高浓度有机物和悬浮物,处理难度大。水质特性、处理技术以及处理设备等都会对处理效果产生直接影响,因此,有必要对... 在油田开采中,采出水的直接排放会对环境造成影响,通常需要经过深度处理后再排放或者回用。而油田采出水含油量高且含有高浓度有机物和悬浮物,处理难度大。水质特性、处理技术以及处理设备等都会对处理效果产生直接影响,因此,有必要对上述问题进行深入研究。本文对现有研究中油田采出水的水质特性、新型的膜分离技术以及气浮工艺进行了总结,分析了各类处理技术研究现状,并对今后发展趋势进行了展望。 展开更多
关键词 油田采出水 水质特性 膜分离技术 气浮工艺
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吉林油田CCUS-EOR技术攻关与实践新进展
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作者 王峰 黎政权 张德平 《天然气工业》 EI CAS CSCD 北大核心 2024年第4期76-82,共7页
CO_(2)捕集、埋存与提高原油采收率(CCUS-EOR)技术可大幅度提高原油采收率并实现CO_(2)有效埋存,同时兼具减碳、增油两大功能,是落实“双碳”战略和保障能源安全的重要技术手段。中国石油高度关注CO_(2)资源化利用问题,在系统研究原始... CO_(2)捕集、埋存与提高原油采收率(CCUS-EOR)技术可大幅度提高原油采收率并实现CO_(2)有效埋存,同时兼具减碳、增油两大功能,是落实“双碳”战略和保障能源安全的重要技术手段。中国石油高度关注CO_(2)资源化利用问题,在系统研究原始油藏、中高含水、高含水及特高含水油藏CO_(2)驱油机理与埋存潜力的基础上,研发了关键技术和工艺装备,形成了集CO_(2)捕集、输送、注入、采出、驱油、埋存、防腐等为主体的CCUS-EOR全产业链一体化技术体系,并率先在中国石油吉林油田开展了CO_(2)捕集埋存与提高采收率矿场实践。研究结果表明:①矿场试验证实CO_(2)驱油可提高采收率20%以上,现已累计注入CO_(2)达320×10^(4) t;②矿场实践系统揭示了陆相低渗透油藏CO_(2)驱油与埋存规律,验证了CO_(2)捕集输送、注入采出、驱油埋存与循环利用全流程技术的适应性,实现了CCUS-EOR减排增效一体化。结论认为:①吉林油田建成了国内首个全产业链、全流程CO_(2)捕集、驱油、埋存与循环利用示范工程,实现了陆相沉积低渗透油藏CO_(2)驱油采收率的大幅提高和CO_(2)的安全埋存;②系统总结了吉林油田近年来在CCUS-EOR方面的最新研究进展和矿场实践认识,指明了油气田CCUS-EOR应用前景,并提出了以新质生产力推动相关企业产业化发展的具体建议。 展开更多
关键词 吉林油田 CCUS-EOR 全流程技术 产业化发展 驱油与埋存一体化 新质生产力 战略布局
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基于夜空保护理念的城市滨水绿地暗夜景观质量评价体系的构建研究
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作者 王敏 赵明 《黑龙江生态工程职业学院学报》 2024年第3期24-28,62,共6页
为保护璀璨星空的夜间自然资源和打造近人尺度的城市滨水绿地景观光环境,基于层次分析法,结合夜空保护理念,对城市滨水绿地暗夜景观质量评价指标进行筛选和权重计算。结果表明:(1)准则层的权重排序为优质户外照明B3(0.3714)>星空品质... 为保护璀璨星空的夜间自然资源和打造近人尺度的城市滨水绿地景观光环境,基于层次分析法,结合夜空保护理念,对城市滨水绿地暗夜景观质量评价指标进行筛选和权重计算。结果表明:(1)准则层的权重排序为优质户外照明B3(0.3714)>星空品质B1(0.3197)>夜间环境B2(0.3089)。(2)指标层中防眩光的总权重高于其他评价指标。(3)各指标层中重要性程度最高和最低分别是:B1中夜间灯光指数C2(0.1720)、滨水视域开阔度C3(0.0177);B2中滨水绿地生态保护性C7(0.1729)、标识可识别性C6(0.0167);B3中防眩光C12(0.2361)、照明能耗与智能控制C10(0.0252)。该评价体系旨在为今后暗夜景观的定量评价、城市夜间光环境规划建设和保护发展提供理论和方法上的研究参考。 展开更多
关键词 城市滨水绿地 暗夜景观 质量评价 层次分析法 夜空保护理念
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庐山云雾茶机械化加工技术及品质分析
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作者 王伟伟 黄纪刚 +4 位作者 杨丽娟 陈艳 江新凤 刘爽 江和源 《中国茶叶》 2024年第5期62-66,共5页
庐山云雾茶是中国传统十大名茶之一,具有悠久的历史和文化底蕴。研究采摘了不同等级的鲜叶原料,按照摊青、杀青、回潮、揉捻、初烘、做形、干燥的工艺加工成庐山云雾茶,总结了庐山云雾茶加工工艺参数、加工设备和不同等级茶叶的品质特点... 庐山云雾茶是中国传统十大名茶之一,具有悠久的历史和文化底蕴。研究采摘了不同等级的鲜叶原料,按照摊青、杀青、回潮、揉捻、初烘、做形、干燥的工艺加工成庐山云雾茶,总结了庐山云雾茶加工工艺参数、加工设备和不同等级茶叶的品质特点,并分析了庐山云雾茶化学成分含量,为庐山云雾茶的标准化加工提供科学依据。 展开更多
关键词 庐山云雾茶 机械化 加工技术 品质特征 化学成分
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轻揉捻轻发酵条件下茶树品种‘湘波绿’与‘槠叶齐’红茶品质分析
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作者 黄静 黄怀生 +4 位作者 龚乐 钟兴刚 黎娜 银霞 粟本文 《茶叶通讯》 2024年第2期202-209,共8页
采摘茶树品种‘湘波绿’‘槠叶齐’春梢一芽一叶及一芽二叶,采用轻揉捻轻发酵工艺分别制成红茶,对茶样进行感官审评与生化成分检测分析。感官审评结果表明,轻揉捻轻发酵条件下两品种红茶香气兰花香显(‘湘波绿’一芽一叶红茶)、有花香(... 采摘茶树品种‘湘波绿’‘槠叶齐’春梢一芽一叶及一芽二叶,采用轻揉捻轻发酵工艺分别制成红茶,对茶样进行感官审评与生化成分检测分析。感官审评结果表明,轻揉捻轻发酵条件下两品种红茶香气兰花香显(‘湘波绿’一芽一叶红茶)、有花香(‘湘波绿’一芽二叶红茶)、带花香(‘槠叶齐’一芽二叶红茶);条索分别较紧结(一芽一叶红茶)或尚紧结(一芽二叶红茶);汤色明亮,分别为橙红(一芽一叶红茶)或尚红(一芽二叶红茶);滋味均表现为鲜醇。一芽一叶红茶生化成分检测结果表明,‘湘波绿’红茶水浸出物略低于‘槠叶齐’红茶,氨基酸含量等则相当;两品种红茶的香气成分均以醇类含量最高,其次是酯类和醛类。‘湘波绿’红茶酯类、醇类和酸类香气化合物含量高于‘槠叶齐’红茶。‘湘波绿’一芽一叶红茶主要香气成分有香叶醇、芳樟醇、水杨酸甲酯、氧化芳樟醇Ⅱ(呋喃型)、顺-茉莉酮、氧化芳樟醇Ⅰ(呋喃型)、顺-己酸-3-己烯酯、反-柠檬醛和橙花醇,‘槠叶齐’一芽一叶红茶主要香气成分有香叶醇、芳樟醇、水杨酸甲酯、氧化芳樟醇Ⅱ(呋喃型)、顺-茉莉酮、氧化芳樟醇Ⅰ(呋喃型)、橙花醇、反-柠檬醛、顺-罗勒烯和顺-己酸-3-己烯酯;香叶醇、芳樟醇、水杨酸甲酯3种香气成分含量两品种均相当,氧化芳樟醇Ⅱ(呋喃型)和氧化芳樟醇Ⅰ(呋喃型)、顺-茉莉酮、顺-己酸-3-己烯酯、桃金娘烯醇、a-萜品醇、2,6-二甲基-5-庚烯醛、苯乙醛、反-3,7-二甲基-2,6-丁二烯酸等‘湘波绿’高于‘槠叶齐’,反-3-己烯醇、2-正戊基呋喃、苯甲醛、杜松烯、异戊酸叶醇酯、己醇、壬醛、反,反-2,4-庚二烯醛、反-2-己烯醇、1-辛烯-3-醇、紫罗酮、月桂烯等‘湘波绿’低于‘槠叶齐’。这些生化成分含量及其差异分别构成了轻揉捻轻发酵工艺条件下‘湘波绿’红茶和‘槠叶齐’红茶的品质特征。试验结果可为优质红、绿茶适制茶树品种‘湘波绿’及‘槠叶齐’的加工利用及提升红茶品质新工艺探索提供一定的启示与参考。 展开更多
关键词 红茶 茶树品种 加工工艺 茶叶品质 ‘湘波绿’ ‘槠叶齐’ 轻揉捻 轻发酵
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我国乳品加工业75年科技创新发展历程概述
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作者 王晶 王礞礞 +2 位作者 田园 肖鑫鑫 张超 《中国乳业》 2024年第6期2-8,共7页
在中国乳业从小到大、从弱到强的发展历程中,科技创新始终扮演着关键角色。本文分析了自1949年以来,中国乳业经历了生产技术萌芽期(1949—1978年)、机械化发展高速期(1979—2007年)、现代奶业结构调整期(2008—2017年),以及高质量发展... 在中国乳业从小到大、从弱到强的发展历程中,科技创新始终扮演着关键角色。本文分析了自1949年以来,中国乳业经历了生产技术萌芽期(1949—1978年)、机械化发展高速期(1979—2007年)、现代奶业结构调整期(2008—2017年),以及高质量发展跃升期(2018年至今),在每一阶段,科技创新都发挥的引领行业革新的作用,从初期的机械化应用提高生产效率,到后续的灭菌技术和灌装技术推动行业规模扩张,再到智能化技术的引入让中国乳品企业跻身世界先进水平。历史表明,科技创新对提升中国乳业的国际竞争力,实现产业升级和结构优化具有重大意义。 展开更多
关键词 乳品加工 科技创新 高质量发展 液态奶
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高质量科技期刊开放获取及论文处理费(APC)的调查与分析——以食品科学与工程领域为例
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作者 李冬梅 吴青林 刘瑞华 《江苏科技信息》 2024年第9期102-104,共3页
文章调查了《食品科学与工程领域高质量科技期刊分级目录(2022年版)》收入的155种期刊的开放获取出版情况、论文处理费、出版商、CC协议、JCR指标数据等,分析食品工程与技术领域高质量期刊的发展现状,从规范OA期刊出版、搭载群集出版传... 文章调查了《食品科学与工程领域高质量科技期刊分级目录(2022年版)》收入的155种期刊的开放获取出版情况、论文处理费、出版商、CC协议、JCR指标数据等,分析食品工程与技术领域高质量期刊的发展现状,从规范OA期刊出版、搭载群集出版传播平台、优化期刊生态方面为国内高质量期刊的建设、评价与可持续发展提供参考。 展开更多
关键词 开放获取 论文处理费 科技期刊 质量评价
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