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Journal of Iron and Steel Research International 2024年第6期31卷 1320-1343页

作者： Wei Zhang wen-yong dai Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina Research and Development Department AGC Plibrico(Dalian)Industries Inc.Dalian 116600LiaoningChina

Lightweight refractories for the working lining of high-temperature furnaces play an important role in the smelting of advanced steels and *** prepare lightweight refractories for the working lining of high-temperature furnaces,the synthesis of lightweight aggregates is the ***,the research on the synthesis of lightweight aggregates with high service temperature,low thermal conductivity,high strength,and good slag resistance has received widespread *** available literature on the synthesis of lightweight aggregates was summarized,including corundum,mullite,mullite-corundum,spinel,corundum-spinel,cordierite,cordierite-mullite,calcium hexaluminate,corundum-calcium hexaluminate,bauxite,magnesia,magnesia-based,and forsterite-based ***,the future development trend of lightweight aggregates was proposed.

关键词： Lightweight aggregate Lightweight refractory Working lining Apparent porosity Closed porosity Thermal conductivity Pore-forming approach

In-situ synthesis of quantum dots in the nucleus of live cells

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National Science Review 2024年第3期11卷 172-182页

作者： Yusi Hu Zhi-Gang Wang Haohao Fu Chuanzheng Zhou wensheng Cai Xueguang Shao Shu-Lin Liu dai-wen Pang State Key Laboratory of Medicinal Chemical Biology Frontiers Science Centre for New Organic MatterTianjin Key Laboratory of Biosensing and Molecular Recognition Research Centre for Analytical Sciences College of Chemistry School of Medicine and Frontiers Science Centre for Cell Responses Nankai University Haihe Laboratory of Sustainable Chemical Transformations

The cell nucleus is the main site for the storage and replication of genetic material, and the synthesis of substances in the nucleus is rhythmic, regular and strictly regulated by physiological processes. However,whether exogenous substances, such as nanoparticles, can be synthesized in situ in the nucleus of live cells has not been reported. Here, we have achieved in-situ synthesis of CdSxSe1-xquantum dots（QDs） in the nucleus by regulation of the glutathione（GSH） metabolic pathway. High enrichment of GSH in the nucleus can be accomplished by the addition of GSH with the help of the Bcl-2 protein. Then, high-valence Se is reduced to low-valence Se by glutathione-reductase-catalyzed GSH, and interacts with the Cd precursor formed through Cd and thiol-rich proteins, eventually generating QDs in the nucleus. Our work contributes to a new understanding of the syntheses of substances in the cell nucleus and will pave the way for the development of advanced ‘supercells’.

关键词： glutathione live cell nucleus quantum dot intracellular synthesis

Intracellular redox potential-driven live-cell synthesis of CdSe quantum dots in Staphylococcus aureus

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Science China Chemistry 2024年第3期67卷 990-999页

作者： Cai-Qin Wu An-An Liu Xu Li Jia-Wei Tu Juan Kong Ling-Ling Yang Jian-Hong Jia Chuan Wang Bin Hu Zhi-Xiong Xie dai-wen Pang The Institute for Advanced Studies College of Chemistry and Molecular SciencesCollege of Life SciencesHubei Key Laboratory of Cell HomeostasisWuhan UniversityWuhan 430072China Research Center for Analytical Sciences College of ChemistryState Key Laboratory of Medicinal Chemical BiologyTianjin Key Laboratory of Biosensing and Molecular RecognitionFrontiers Science Center for New Organic MatterFrontiers Science Center for Cell Responsesand Haihe Laboratory of Sustainable Chemical TransformationsNankai UniversityTianjin 300071China

Biosynthesized semiconductor quantum dots(QDs) have bright fluorescence,adjustable particle sizes,and environmental friendliness,endowing them with convenience and potential for biological *** to the unclear mechanism of the cellular environment on the live-cell synthesis of QDs,it is still difficult to regulate their optical ***,the critical role of the intracellular redox environment in regulating the fluorescence properties of biosynthesized CdSe QDs in Staphylococcus aureus(***) has been *** glutathione peroxidase(GPx) activity directly affects the intracellular H_(2)O_(2) produced in the SeO_(3)^(2-) reduction,which further manipulates the glutathione redox cycle to determine the content of low-valence *** a result,the fluorescence intensity of the synthesized CdSe QDs increases by 60% in the GPx overexpressed *** cellular redox potential that is controlled by the GSH redox cycle provides the driving force for the reduction of SeO_(3)^(2-),facilitating the synthesis of CdSe QDs in *** *** proposed mechanism of the cellular redox state provides a new perspective for regulating the synthesis of semiconductor nanomaterials in live cells.

关键词： redox H_(2)O_(2) peroxidase quantum dot Staphylococcus aureus

Development and performance evaluation of high temperature resistant strong adsorption rigid blocking agent

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Petroleum Science 2024年第4期21卷 2650-2662页

作者： Zhe Xu Jin-Sheng Sun Jing-Ping Liu Kai-He Lv Xiao-Dong Dong Zong-Lun Wang Tai-Feng Zhang Yuan-Wei Sun Zhi-wen dai School of Petroleum Engineering China University of Petroleum (East China) CNPC Engineering Technology R&D Company Limited

As drilling wells continue to move into deep ultra-deep layers, the requirements for temperature resistance of drilling fluid treatments are getting higher and higher. Among them, blocking agent, as one of the key treatment agents, has also become a hot spot of research. In this study, a high temperature resistant strong adsorption rigid blocking agent(QW-1) was prepared using KH570 modified silica,acrylamide(AM) and allyltrimethylammonium chloride(TMAAC). QW-1 has good thermal stability,average particle size of 1.46 μm, water contact angle of 10.5., has a strong hydrophilicity, can be well dispersed in water. The experimental results showed that when 2 wt% QW-1 was added to recipe A(4 wt% bentonite slurry+0.5 wt% DSP-1(filtration loss depressant)), the API filtration loss decreased from 7.8to 6.4 m L. After aging at 240.C, the API loss of filtration was reduced from 21 to 14 m L, which has certain performance of high temperature loss of filtration. At the same time, it is effective in sealing 80-100mesh and 100-120 mesh sand beds as well as 3 and 5 μm ceramic sand discs. Under the same conditions,the blocking performance was superior to silica(5 μm) and calcium carbonate(2.6 μm). In addition, the mechanism of action of QW-1 was further investigated. The results show that QW-1 with amide and quaternary ammonium groups on the molecular chain can be adsorbed onto the surface of clay particles through hydrogen bonding and electrostatic interaction to form a dense blocking layer, thus preventing further intrusion of drilling fluid into the formation.

关键词： High adsorption Rigid microsphere High temperature resistance Blocking performance

Selective synthesis of heteroleptic PdAB-cages: modulating size-preference of supramolecular hosts via endo-functionalization

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Science China Chemistry 2024年

作者： wen-Tao dai Ting-Ting Liu Qixia Bai Zhe Zhang Pingshan Wang Wei Lu Qi Zhang Key Laboratory of Green Chemistry and Technology of Ministry of Education College of Chemistry Sichuan University Institute of Environmental Research at Greater Bay Area Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of Education Guangzhou University

The size complementarity between a host and a guest is a critical prerequisite for selective molecular recognition. Numerous artificial host systems have been designed to achieve size-selective recognition and chemical transformations. However, the inherent challenge lies in the fixed selectivity governed by a size-exclusion mechanism dictated by the host’s *** the selectivity necessitates structural modifications of hosts. Examples of host systems with modifiable sizeselectivity are rare. In this study, we present an approach to modulating guest-selectivity via endo-functionalization of supramolecular cavities. Heteroleptic Pd2A3B-cages are constructed with a Pd2A3precursor or directly from palladium ions and relevant ligands. Furthermore, the simultaneous and selective formation of multiple hetero-cages was achieved by simply mixing PdIIand the free ligands in a one-pot reaction. The fidelity of the assembly process relies on cooperative steric control at the periphery and within the cavity of the hetero-cages, respectively. The central steric group also functions as the endohedral moiety. Variations of the endohedral groups facilitate facile and modular derivatization of the microenvironment within the cages, enabling the fine-tuning of guest binding affinities as evidenced by titration experiments. This strategy offers a new solution for the development of customized host structures.

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Vonoprazan-amoxicillin dual therapy for Helicobacter pylori eradication in Chinese population:A prospective,multicenter,randomized,two-stage study

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World Journal of Gastroenterology 2024年第27期30卷 3304-3313页

作者： Xue-Ping Huang Zhi-Hui Lin Yi-Juan Liu Shao-Wei Lin Yan-Feng Shao Feng Qiu Qing-Wu Qiu Zhang-Kun Xu Jin-Xian Chen Liang-Huo Chen Zhen-Qun Lin wen-Hua dai Ming-Qing Zhang Qi Jiang Zhong-Qin Xiao Xian-Xing Cheng Xiang-Fei Zhang wen-Bin You Wei Chen Long-Qin Li Wei-Xing Lin Yong-Fu Wang Fu-Jin Lai Long-Qun Chen Zhong-Hua Huang wen-Qi Zheng Jin-Qi Wei Department of Gastroenterology Shengli Clinical Medical College of Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina Department of Gastroenterology Fujian Provincial HospitalFuzhou 350001Fujian ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina School of Public Health Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina Department of Gastroenterology The Third People’s Hospital of Fujian ProvinceFuzhou 350000Fujian ProvinceChina Department of Gastroenterology Fujian Provincial Hospital North Brance Fujian Provincial Geriatric HospitalFuzhou 350000Fujian ProvinceChina Department of Gastroenterology Xiaoao HospitalFuzhou 350000Fujian ProvinceChina Department of Gastroenterology The General Hospital of Fujian Energy GroupFuzhou 350000Fujian ProvinceChina Department of Gastroenterology The Second Hospital of ZhangzhouZhangzhou 363000Fujian ProvinceChina Department of Gastroenterology Anxi Country HospitalQuanzhou 362000Fujian ProvinceChina Department of Gastroenterology Zhangzhou Municipal Hospital of TCMZhangzhou 363000Fujian ProvinceChina Department of Gastroenterology Zhangpu HospitalZhangzhou 363000Fujian ProvinceChina Department of Gastroenterology The Affiliated Dongnan Hospital of Xiamen UniversityZhangzhou 363000Fujian ProvinceChina Department of Gastroenterology First Hospital of Nanping CityNanping 353000Fujian ProvinceChina Department of Gastroenterology Fujian Nanping Second HospitalNanping 353000Fujian ProvinceChina Department of Gastroenterology Wuyishan Municipal HospitalNanping 353000Fujian ProvinceChina Department of Gastroenterology Fuzhou Changle District HospitalFuzhou 350000Fujian ProvinceChina Department of Gastroenterology Changle City Second HospitalFuzhou 350000Fujian ProvinceChina Department of Gastroenterology Jinjiang Municipal HospitalQuanzhou 362000Fujian ProvinceChina Department of Gastroenterology Fuding Hospital Affiliated to Fuj

BACKGROUND The efficacy of Vonoprazan-amoxicillin dual therapy(VAT)in the treatment of Helicobacter pylori(***)is *** To evaluate the efficacy of VAT in the Chinese *** This prospective,multicenter,randomized,open-label,and two-stage study was conducted at 23 centers in Fujian,China(May 2021-April 2022).***-infected patients were randomized to bismuth quadruple therapy(BQT),BQT-Vonoprazan(BQT-V),seven-day VAT(VAT-7),ten-day VAT(VAT-10),and fourteen-day VAT(VAT-14)*** primary endpoint was the *** eradication *** secondary endpoint was the frequency of adverse *** study was registered with the Chinese Clinical Trial Registry,*** In the first stage,VAT-7 and BQT-V groups were selected for early termination because less than 23 among 28 cases were *** the second stage,the eradication rates for BQT,VAT-10,and VA-14 were 80.2%[95%confidence interval(95%CI):71.4%-86.8%],93.2%(86.6%-96.7%),92.2%(85.3%-96.0%)in the intention-to-treat(ITT)analysis,and 80.9%(95%CI:71.7%-87.5%),94.0%(87.5%-97.2%),and 93.9%(87.4%-97.2%)in the per-protocol *** ITT analysis showed a higher eradication rate in the VAT-10 and VAT-14 groups than in the BQT group(P=0.022 and P=0.046,respectively).The incidence of adverse events in the VAT-10 and VAT-14 groups was lower than in the BQT group(25.27%and 13.73%vs 37.62%,respectively;P<0.001).CONCLUSION VAT with a duration of 10 or 14 days achieves a higher eradication rate than the BQT,with a more tolerable safety profile in ***-infected patients in *** XP et *** for *** eradication.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Bismuth quadruple therapy

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基于红外热图像的光伏组件缺陷检测系统研究

水电站机电技术 2024年第6期47卷 62-66页

作者：戴文五凌电力有限公司宁夏分公司宁夏中卫755000

在实现碳达峰、碳中和“双碳”目标这一背景下,光伏等新能源的发展面临着很好的机遇。实际运行中太阳能组件的遮挡、隐裂等缺陷,常导致光伏电站设备出现故障,严重影响光伏电站的发电能力。而光伏组件的缺陷检测可以通过红外热图像来实现... 详细信息

在实现碳达峰、碳中和“双碳”目标这一背景下,光伏等新能源的发展面临着很好的机遇。实际运行中太阳能组件的遮挡、隐裂等缺陷,常导致光伏电站设备出现故障,严重影响光伏电站的发电能力。而光伏组件的缺陷检测可以通过红外热图像来实现,一般情况下,红外热图像是以RGB颜色空间的形式呈现的。然而,RGB颜色空间不能提供用于图像处理的有效直观特征。因此,将红外热图像从RGB颜色空间转换到HSI颜色空间,是为了提取更有效的图像特征。通过研究将光伏组件的缺陷从背景图像中分割出来,以便达到缺陷诊断的目的,应用中能更好的实现光伏组件故障检测。

关键词：红外热图像光伏组件缺陷检测系统研究

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元宇宙赋能城市创新创业人才培养模式研究

产业科技创新 2024年第4期6卷 114-117页

作者：戴雯安徽理工大学化学工程学院

本文探讨了元宇宙作为新兴技术如何赋能城市创新创业人才的培养模式。论文以产学研用的融合为主线，详细分析了人才链对创新链的赋能作用以及创新链如何进一步赋能产业链。通过案例分析、理论构建揭示了元宇宙环境下，城市创新人才培养... 详细信息

本文探讨了元宇宙作为新兴技术如何赋能城市创新创业人才的培养模式。论文以产学研用的融合为主线，详细分析了人才链对创新链的赋能作用以及创新链如何进一步赋能产业链。通过案例分析、理论构建揭示了元宇宙环境下，城市创新人才培养的新模式和路径，并提出了相应的策略和建议。

关键词：元宇宙城市创新创业人才产学研用人才链

业财融合视角下业务场景教学改革探索与实践——以“业务税务管理”课程为例

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职业教育研究 2024年第1期 77-82页

作者：戴文琛湖南财经工业职业技术学院湖南衡阳421001

“以数治税”对企业税务人员提出了转型新目标,也对高职院校税收类课程的教学提出了改革新要求。湖南财经工业职业技术学院“业务税务管理”课程以业务场景为基础,以业务流、知识流、数据流、核算流为主线,实施业务场景教学改革,在课程... 详细信息

“以数治税”对企业税务人员提出了转型新目标,也对高职院校税收类课程的教学提出了改革新要求。湖南财经工业职业技术学院“业务税务管理”课程以业务场景为基础,以业务流、知识流、数据流、核算流为主线,实施业务场景教学改革,在课程体系、教学资源、教学方法等三个方面开展创新性研究与实践,对高职税收类课程及财经专业课程的教学改革具有借鉴意义。

关键词：业财融合业务税务管理业务场景场景教学教学改革

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副文本因素对典籍外译出版传播的影响研究——以1880年版翟译《聊斋志异选》为例

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广东开放大学学报 2024年第3期33卷 60-67页

作者：戴文艺湛江开放大学广东湛江524000

作为百年域外传播的开山之作,1880版翟译本《聊斋志异选》成功开启了《聊斋志异》异域出版和传播的破冰之旅,其副文本元素研究对《聊斋志异》外译和传播研究有着重要的现实意义。翟译本的内副文本提升了译本对读者的吸引力和诱惑力,增... 详细信息

作为百年域外传播的开山之作,1880版翟译本《聊斋志异选》成功开启了《聊斋志异》异域出版和传播的破冰之旅,其副文本元素研究对《聊斋志异》外译和传播研究有着重要的现实意义。翟译本的内副文本提升了译本对读者的吸引力和诱惑力,增加了译本的学术性和趣味性。其外副文本形式多样,影响深远,是翟译本成功传播仰仗的助力。除上述传统的副文本元素外,数字时代新生的外副文本策略对于当代典籍外译出版发行和传播同样具有极大的影响力,适合年轻读者的短视频、动漫、音频等都是促进流通和销售的有效副文本策略。关注副文本元素在吸引读者消费、保持阅读热度、促进典籍译作的长期传播和接受起到有效的促进作用,对于我国的典籍外译传播和出版具有积极指导意义。

关键词：副文本典籍外译出版传播