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Journal of Iron and Steel Research International 2022年第9期29卷 1412-1422页

作者： Shao-wen wu Yan-ling zhang Shuai zhang State Key laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The effects of basicities and equilibrium temperatures on the enrichment of chromium in different mineral phases of synthesized argon-oxygen decarburization slags were investigated to understand the Cr concentrating behavior into Mg(Cr,Al)2O4 spinel phase and to determine the leaching stability of Cr-containing *** results showed that when the basicity decreased from 1.0 to 0.6 and temperatures decreased from 1600 to 800℃,the Cr content of amorphous phase and crystalline phase gradually decreased,with a subsequent increase in the Cr content of spinel *** range of Cr enrichment in spinel of slags S1,S2,and S3 is 92.03-96.89,91.63-96.36,and 90.67-95.42,*** mass fraction and the size of spinel increased with the decreasing equilibrium temperatures,and the Cr leaching values decreased ***,the trend of the amount of Cr-related ions in the leachate was consistent with the trend of Cr in the amorphous phase,diopside,and *** results suggest that the lower basicity and equilibrium temperatures could be conducive to stabilizing Cr into spinel phase to minimize Cr leaching into the environment.

关键词： Chromium enrichment Leaching behavior Basicity Temperature Cr-containing slag

Recognition of Py-Im Polyamides with Chiral Recognition Unit to Methylated Cytosine（mC）

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Recognition of Py-Im Polyamides with Chiral Recognition Unit...

Rejuvenated metallic glass strips produced via twin-roll casting

第六届全国化学生物学学术会议

作者： JIANG Shi-Kun~1,wu Yan-Ling~2,zhang wen~(1*) 1 Dept of Biopharmaceutical sciences,College of Pharmaceutical sciences, Zhejiang University of technology 18 Chaowang road,Hangzhou 310032,china 2 Zhejiang Provincial Center for Disease Control and Prevention 630 Xincheng Road,Binjiang Dist,Hangzhou 310032,china

＜正＞Polyamides,which are composed of several different types of heterocyclic rings,usually N-methylpyrrole（Py） and N-methylimidazole（Im）,analogous to the composition of the antibiotics, netropsin and distamycin,are currently the most promising synthetic compounds for the recognition of sequence-specific DNA and for use in chemotherapy and *** can recognize a

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Journal of Materials science & technology 2020年第3期38卷 73-79页

作者： Long zhang Yi wu Shidong Feng wen Li hongwei zhang Huameng Fu hong Li Zhengwang Zhu Haifeng zhang Shenyang National laboratory for Materials science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang Ligong University Shenyang 110159China Advanced Manufacturing technology Research Centre Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic University999077Hong KongChina State Key laboratory of Metastable Materials science and technology Yanshan UniversityQinhuangdao 066004China

The energy state and atomic level structure of metallic glasses(MGs)are very sensitive to their cooling rates,and a lower cooling rate generally causes a lower energy and more relaxed state of *** this work,the Zr41.2 Ti13.8 Cu12.5 Ni10 Be22.5(Vit.1)ribbons with a thickness of 40μm and 110μm and the strips with a thickness of 320μm and 490μm were produced by single-roll melt spinning and twin-roll casting,*** increase in thickness of either ribbons or strips results in a lower energy state with a smaller relaxation enthalpy,a lower content of free volume,and a higher *** the cooling rate of the twin-roll produced 320μm-thick strip is almost one magnitude lower than that of the single-roll produced 110μm-thick ribbon,the former,however,possesses a rejuvenated energy state as compared to the *** dynamics simulations reveal that the squeezing force during twin-roll casting affects the evolution of connection types of clusters,and the 2-atom and 4-atom connections are prone to be retained,which results in a higher energy state of *** a rejuvenation process during twin-roll casting can overwhelm the relaxation process caused by the lower cooling ***,twin-roll casting is not only a method being capable for producing strips with a large thickness,but also prone to obtain a high energy state of the MG strip.

关键词： Metallic glass Metallic glass strip Twin-roll casting Rejuvenation Cluster connection

Survey of antioxidant capacity and phenolic composition of blueberry,blackberry,and strawberry in Nanjing

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Journal of Zhejiang University-science B(Biomedicine & Biotechnology) 2012年第2期13卷 94-102页

作者： wu-yang HUANG hong-cheng zhang wen-xu LIU Chun-yang LI Department of Functional Food and Bioactive Compounds Institute of Farm Product ProcessingJiangsu Academy of Agricultural SciencesNanjing 210014China Bee Research Institute Chinese Academy of Agricultural SciencesBeijing 100093China College of Food science and technology Nanjing Agricultural UniversityNanjing 210095China

Berries are a good source of natural antioxidants. In the present study, the total antioxidant capacity and phenolic composition of three berry fruits （blueberry, blackberry, and strawberry） cultivated in Nanjing were investigated. Blueberry, with a Trolox equivalent antioxidant capacity （TEAC） value of 14.98 mmol Trolox/100 g dry weight （DW） exhibited the strongest total antioxidant capacity using both the 2,2-azinobis（3-ethylbenzothiazoline-6-sulfonic acid） diammonium salt （ABTS） and the 2,2-diphenyl-l-picrylhydrazyl （DPPH） methods. Blueberry also had the highest total phenolic content （TPC, 9.44 mg gallic acid/g DW）, total flavonoid content （TFC, 36.06 mg rutin/g DW）, and total anthocyanidin content （TAC, 24.38 mg catechin/g DW）. A preliminary analysis using high performance liquid chromatography （HPLC） showed that the blueberry, blackberry, and strawberry samples tested contained a range of phenolic acids （including gallic acid, protocatechuic acid, p-hydroxybenzoic acid, vanillic acid, caffeic acid, p-coumaric acid, ferulic acid, eUagic acid, and cinnamic acid） and various types of flavonoids （flavone： luteolin; flavonols： rutin, myricetin, quercetrin, and quercetin; flavanols： gallocatechin, epigallocatechin, catechin, and catechin gallate; anthocyanidins： malvidin-3-galactoside, malvidin-3-glucoside, and cyanidin）. In particular, the blueberries had high levels of proanthocyanidins and anthocyanidins, which might be responsible for their strong antioxidant activities. These results indicate a potential market role for berries （especially blueberries） as a functional food ingredient or nutraceutical.

关键词： Berries Antioxidants Phenolics Flavonoids Anthocyanidins

Role of corneal collagen fibrils in corneal disorders and related pathological conditions

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International Journal of Ophthalmology(English edition) 2017年第5期10卷 803-811页

作者： hong-Yan Zhou Yan Cao Jie wu wen-Song zhang Department of Ophthalmology China-Japan Union Hospital of Jilin University Department of Ophthalmology the Second Hospital of Jilin University

The cornea is a soft tissue located at the front of the eye with the principal function of transmitting and refracting light rays to precisely sense visual information. Corneal shape, refraction, and stromal stiffness are to a large part determined by corneal fibrils, the arrangements of which define the corneal cells and their functional behaviour. However, the modality and alignment of native corneal collagen lamellae are altered in various corneal pathological states such as infection, injury, keratoconus, corneal scar formation, and keratoprosthesis. Furthermore, corneal recuperation after corneal pathological change is dependent on the balance of corneal collagen degradation and contraction. A thorough understanding of the characteristics of corneal collagen is thus necessary to develop viable therapies using the outcome of strategies using engineered corneas. In this review, we discuss the composition and distribution of corneal collagens as well as their degradation and contraction, and address the current status of corneal tissue engineering and the progress of corneal cross-linking.

关键词： cornea collagen fibril collagen degradation collagen contraction tissue engineering

Design,Synthesis of Novel oxo-heterocylic naphtalimides and Their Interaction with guanine-rich telomeric DNA Sequence

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Design,Synthesis of Novel oxo-heterocylic naphtalimides and ...

营造支持科技创新引领现代化产业体系建设的政策生态

中国化学会第28届学术年会

作者： hong-Fei zhang1,Yi-Qian Jiang1,Jia-Hua Yu1,Yan-Juan Ji1,Yan-Ling wu2,*,wen zhang1,* 1Dept of Biopharmaceutical sciences,College of Pharmaceutical sciences,Zhejiang University of technology,310014,Hangzhou,china 2Virus Inspection Dept,Zhejiang Provincial Center for Disease Control and Prevention,310051,Hangzhou,china

＜正＞Telomeres are significant structures at the end of chromosomes, which play an essential role in various biological events, such as aging and apoptosis. In recent years, the research on telomeres and telomerase i... 详细信息

关键词： Oxo-heterocylic naphtalimide Telomere Intercalation G-DNA

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中国科学院院刊 2024年第7期39卷 1153-1162页

作者：周程彭晓艺谢雯张赤东邱雨荷吴凡北京大学哲学系北京100871 中国科学院科技战略咨询研究院北京100190 中国科学院大学公共政策与管理学院北京100049

发挥科技创新引领作用,加速现代化产业体系建设,需要营造科技、教育、经济、社会政策协同的创新政策生态。与此需求相比,目前我国科技创新政策在政策横纵向协同性、产业技术攻关组织机制性、创新企业主体性、产学研合作创新激励性、资... 详细信息

发挥科技创新引领作用,加速现代化产业体系建设,需要营造科技、教育、经济、社会政策协同的创新政策生态。与此需求相比,目前我国科技创新政策在政策横纵向协同性、产业技术攻关组织机制性、创新企业主体性、产学研合作创新激励性、资源配置市场性方面亟待进一步完善。文章提出5个建议:(1)在中央科技管理部门内设置创新政策协调审查机构以健全政策协同性;(2)完善关键核心技术攻关的“常规科技计划+新型举国体制”政策组合以优化攻关组织机制性;(3)构建分工明确、合作畅通、创新高效的国家创新体系,以强化企业创新主体性;(4)优化大学和科研院所评价考核制度以提高产学研合作激励性;(5)坚持市场配置资源的决定性作用。

关键词：科技创新现代化产业体系政策生态

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基于复图像的稀疏SAR成像方法在高分三号数据上的验证

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雷达学报（中英文） 2020年第1期9卷 123-130页

作者：毕辉张冰尘洪文吴一戎南京航空航天大学电子信息工程学院南京211106 中国科学院空天信息创新研究院北京100094

基于稀疏信号处理的合成孔径雷达(SAR)成像(稀疏SAR成像)是稀疏微波成像的一个重要研究方向,相较于经典SAR,稀疏SAR成像在提升成像性能等方面具有重要优势。然而,受困于较大计算代价,其难以用于大观测场景的稀疏恢复,这极大限制了其应... 详细信息

基于稀疏信号处理的合成孔径雷达(SAR)成像(稀疏SAR成像)是稀疏微波成像的一个重要研究方向,相较于经典SAR,稀疏SAR成像在提升成像性能等方面具有重要优势。然而,受困于较大计算代价,其难以用于大观测场景的稀疏恢复,这极大限制了其应用范围。此外,无论军用还是民用,各国星载SAR系统的技术性能指标均是保密的,因此相较于原始回波,通常的公开数据都是经匹配滤波算法重构的SAR复图像。因而如何基于复图像数据进行稀疏成像,对提升现有SAR图像质量、降低稀疏成像计算代价具有重要意义。高分三号是我国首颗1 m分辨率C波段多极化SAR卫星,它具有成像分辨率高、幅宽大等优势,对提升我国灾害监测、海洋监视等能力具有重要作用。该文将一种基于复图像数据的稀疏SAR成像技术引入到高分三号SAR复图像的性能提升当中。实验结果表明,经稀疏处理后的图像拥有更低的旁瓣、更高的信杂噪比以及更优的目标可分辨率能力。且类似于匹配滤波算法重建图像,稀疏恢复结果也可以很好地保持图像统计分布及相位信息,使得稀疏重构的高分三号SAR图像仍适用于干涉、恒虚警率检测等应用。

关键词：合成孔径雷达稀疏成像高分三号正则化

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基于碳卫星与电力排放数据的碳计量

电力系统自动化 2024年第1期48卷 2-9页

作者：章政文顾津锦赵俊华黄建伟吴海峰文福拴香港中文大学(深圳)理工学院广东省深圳市518100 悉尼大学电气与信息工程学院澳大利亚悉尼2006 香港中文大学(深圳)高等金融研究院广东省深圳市518100 浙江大学电气工程学院浙江省杭州市310027

目前,基于温室气体卫星遥感探测技术的碳感知正逐步成为新一代碳计量方法的重要组成部分。然而,从碳卫星数据中准确提取由人类活动产生的碳排放数据是一项至关重要且极具挑战性的任务。文中结合碳卫星与电力排放数据,提出一种新的人工... 详细信息

目前,基于温室气体卫星遥感探测技术的碳感知正逐步成为新一代碳计量方法的重要组成部分。然而,从碳卫星数据中准确提取由人类活动产生的碳排放数据是一项至关重要且极具挑战性的任务。文中结合碳卫星与电力排放数据,提出一种新的人工智能算法,以实现准确的碳排放计量。首先,介绍了所使用的包括碳卫星和电力数据在内的多模态数据源,并设计了相应的数据筛选方法。然后,提出了考虑此多模态数据特性的深度学习方法,构建反映碳卫星数据、发电量数据与碳源碳排放量之间函数关系的数据驱动模型。最后,基于美国OCO-2碳卫星的碳浓度遥感数据及美国1304家火力发电厂的连续烟气监测系统数据验证了所提方法在发电厂碳排放量计量问题上的有效性。

关键词：碳卫星电力人工智能深度学习碳排放碳计量

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大米免疫活性肽在小鼠体内的作用机制

食品与机械 2024年第3期40卷 141-148,240页

作者：文诗雨张芷萌吴昊谢雨菲黄庆明廖娟文李长沙理工大学食品与生物工程学院湖南长沙410014 湖南助农米业有限公司湖南益阳413200

目的:证明前期筛选出的肽GBP1(NSVFRALPVDVVANAYR)在小鼠体内的免疫调节活性。方法:通过动物试验探讨GBP1肽的免疫调节作用机制;利用RNA-Seq技术对GBP1肽处理前后的小鼠脾脏组织进行转录组测序分析,阐释GBP1肽免疫调节作用的分子机制。... 详细信息

目的:证明前期筛选出的肽GBP1(NSVFRALPVDVVANAYR)在小鼠体内的免疫调节活性。方法:通过动物试验探讨GBP1肽的免疫调节作用机制;利用RNA-Seq技术对GBP1肽处理前后的小鼠脾脏组织进行转录组测序分析,阐释GBP1肽免疫调节作用的分子机制。结果:GBP1肽处理组小鼠脾细胞增殖数趋于正常值水平,肝脏器系数显著降低,血清中IgG含量稳定;终质量分数为25 mg/kg的GBP1肽能够在一定程度上抑制小鼠血清中IL-2、IFN-γ以及TNF-α的分泌;通过转录组分析,从脾脏组织中获得780个差异基因,该基因在机体内涉及与免疫相关的p53信号通路、铁死亡、补体和凝血级联等通路密切相关。结论:GBP1肽可以影响细胞因子的表达,介导信号转导通路,行使免疫调节功能。

关键词：大米免疫活性肽炎症反应小鼠试验转录组分析