Results 71 to 80 of about 24,942 (172)

Characterization of Peptide Utilization by Bifidobacterium bifidum: Insights From Computer Simulations and In Vitro Verification to Enhance Nitrogen Source Utilization

open access: yesFood Science &Nutrition, Volume 13, Issue 12, December 2025.
Bifidobacterium bifidum preferentially absorbs short peptides with molecular weights below 2000 Da that are rich in proline (Pro) and leucine (Leu). Molecular docking reveals that the length of transportable peptides correlates with the size of the OppA‐binding cavity, while the presence of Pro and Leu significantly enhances peptide‐OppA interactions ...
Xin Qian   +7 more
wiley   +1 more source

Design and Implementation of Pork Safety Traceability System Based on Open-source Framework [PDF]

open access: yes, 2015
社会发展和人们生活水平日益提高,国内个别食品安全事件的出现,政府和消费者都开始重视畜产品质量安全问题。猪肉的生产在畜产品中占有较高的比例,而我国作为最大的猪肉消费量国,近年来食品安全问题频发,因此,研究畜产品质量管理体系,进一步提高猪肉生产质量,具有重大的理论价值和必要的现实意义。然而,由于供给体系的复杂化以及缺乏生产信息的有效传递方式,猪肉安全生产、监督和管理面临着很多问题。可追溯系统被认为是猪肉食品质量安全管理的有效手段,已经受到消费者及食品质量监管部门的普遍关注 ...
王金锋
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基于文献计量的科学与工程计算发展态势分析 [PDF]

open access: yes, 2018
科学与工程计算利用高级计算能力理解和解决复杂的科学和工程问题,是计算机实现在高科技领域应用的纽带和工具。进入21世纪以来,千万亿次、百亿亿次科学与工程计算将显著提升各国在国家安全、航空航天、生命科学、材料科学、气候与生态环境等领域的科技创新能力,产生重大科学理论和应用突破。该文以Clarivate Analytics公司的Web of Science TM核心合集数据库中2007-2016年间的科学与工程计算研究论文为数据源,利用Thomson Data ...
刘小平, 吕凤先
core   +1 more source

The Genome of Phoebe zhennan (Lauraceae) and Comparative Genomics of Phoebe 楠木(樟科)基因组与楠属植物比较基因组学研究

open access: yesIntegrative Conservation, Volume 4, Issue 4, Page 584-599, December 2025.
Phoebe zhennan is a Chinese endemic and valuable timber species of Phoebe (Lauraceae). We present a chromosome‐level genome assembly of P. zhennan. Our research provides novel insights into the genome evolution of Phoebe, including whole‐genome duplication, phylogenetic relationships of magnoliids, and key MYB regulatory genes involved in lignin ...
Mao Yameng   +3 more
wiley   +1 more source

Study on Extraction and Structure of Four Kinds of Peanut Proteins(4种花生蛋白的分级提取及其结构的扫描电镜观察) [PDF]

open access: yesShipin kexue jishu xuebao, 2015
Four protein fractions (albumin, globulin, prolamine and glutelin) were fractionated from peanut meal and their surface structures were observed using scanning electron microscope.
LI Ting(李 婷)   +4 more
doaj   +1 more source

Research on Take-away Platform Users’ Repeat Ordering Intention: A Perspective of Perceived Price and Service Quality [PDF]

open access: yes, 2016
近几年来,随着团购网站的兴起、打车软件的大热以及外卖平台的风靡,O2O电子商务的商机和细分领域正不断被挖掘和深耕。本文聚焦于外卖平台,外卖O2O模式与其他O2O模式最大的区别在于外卖O2O模式是配送上门,其他O2O模式(如团购)是到店体验,因此,配送质量是外卖O2O模式需要考虑的重要因素。现有的研究要么没有考虑配送质量,要么仅仅将其作为某个变量的一个测度项来研究,无法全面地体现配送质量对外卖平台用户满意和重复订餐意愿的影响。其次,外卖平台近两年来对新老用户采取满减、满返、满送及红包等价格补贴政策 ...
林静如
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Advances in metals and metal hybrids‐based gas sensors and their applications

open access: yesRare Metals, Volume 44, Issue 12, Page 9363-9413, December 2025.
Graphical abstract Abstract As a kind of node on the Internet of Things, gas sensor is specifically utilized for detecting gaseous chemical species and humidity. Functioning as a kind of discrete electronic components, gas sensors have been extensively implemented in many fields, including agricultural production, public safety, healthcare activity ...
Danyao Qu   +7 more
wiley   +1 more source

Design and Implementation of Quality Management Assistant System of A Leather Manufacture Company [PDF]

open access: yes, 2015
为了有效地整合企业资源,简化企业业务流程,提高应变能力和竞争能力,某皮革制造公司购买了某知名的ERP系统开发企业的产品。由于该ERP系统开发企业没有完全针对某皮革制造公司的实际业务流程进行开发,而是套用已有的ERP系统模板进行简单地修改,导致某皮革制造公司在实际使用过程中为了适应系统而被迫改变原有的一些工作流程,并且影响工作效率。品质管理是皮革制造业的一个重要环节,对企业成败至关重要。由于目前的ERP系统中产品检测数据的录入过程较为繁琐,而产品检验具有工序多,速度快的特点 ...
罗兴辉
core  

Coactosin‐Like Protein Reduces Prostaglandin D2 Production in Alveolar Macrophages and Alleviates Allergic Airway Inflammation

open access: yesAdvanced Science, Volume 12, Issue 34, September 11, 2025.
Coactosin‐like protein inhibits prostaglandin D₂ (PGD2) secretion by modulating alveolar macrophage polarization, thereby suppressing activation of the PGD2 receptor CRTH2 in Th2‐associated immune cells and alleviating allergic airway inflammation.
Li‐Long Pan   +12 more
wiley   +1 more source

The Impact of Internal Control on Food Safety Information Disclosure

open access: yes, 2016
食品质量安全有关消费者身体健康和社会的稳定发展,是政府和公众关注的热点问题。然而近年来频发的食品质量安全事件,引发了公众对食品安全问题的担心。基于食品“经验品”和“信用品”的特性,学者们认为食品市场信息不对称和交易成本过高是食品质量安全问题的主要诱因。由此,理论研究关注的一个重要问题是企业的食品质量安全信息披露水平受哪些因素影响。目前的研究更多的将企业视为政府规制的接受者,着眼于从外部公共压力层面寻求影响食品质量安全信息披露水平的因素,但食品质量安全信息产生于企业内部 ...
陈素云
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