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关于钛白水解的几点见解

无机盐工业 2011年第7期43卷 42-44页

作者：周国娥湖南化工职业技术学院化工系湖南株洲412004

硫酸法生产钛白过程中,水解是关键核心技术。为了得到良好的水解粒子、水解收率,针对钛白生产过程中钛白水解的晶种粒子构成及水解控制方式对水解粒子、水解收率的影响进行了跟踪、调试和总结,找到了常压水解得到良好水解粒子、高的水... 详细信息

硫酸法生产钛白过程中,水解是关键核心技术。为了得到良好的水解粒子、水解收率,针对钛白生产过程中钛白水解的晶种粒子构成及水解控制方式对水解粒子、水解收率的影响进行了跟踪、调试和总结,找到了常压水解得到良好水解粒子、高的水解收率的合适工艺控制条件,即控制晶种配制时晶种雏晶粒度大小为2~3 nm,酸过量20%~25%,水解时二氧化钛的质量浓度为160~190 g/L,水解温度为112~114℃,搅拌强度预热时搅拌转速为30~40 r/min、诱导期前后为15~20 r/min、诱导期为8~15 r/min。

关键词：钛白常压水解晶种粒子构成控制方法水解粒子

Afforestation increases microbial diversity in low-carbon soils

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Journal of Forestry Research 2024年第2期35卷 14-22页

作者： Xuesen Pang Chuankuan Wang Chengjie Ren Zhenghu zhou Center for ecological Research Key Laboratory of Sustainable Forest Ecosystem Management‑Ministry of EducationNortheast Forestry UniversityHarbin 150040People’s Republic of China Northeast Asia Biodiversity Research Center Northeast Forestry UniversityHarbin 150040People’s Republic of China State Key Laboratory of Soil erosion and Dryland Farming on the Loess Plateau Northwest A&F UniversityYangling 712100People’s Republic of China

Afforestation has an important role in biodiversity conservation and ecosystem function improvement.A meta-analysis was carried out in China,which has the largest plantation area globally,to quantify the effects of plantings on soil microbial *** results showed that the overall effect of afforestation on soil microbial diversity was positive across the *** forest algorithm suggested that soil carbon was the most important factor regulating microbial diversity and the positive response was only found with new plantings on low-carbon bare lands but not on high-carbon farmlands and *** addition,afforestation with broadleaved species increased microbial diversity,whereas planting with conifers had no effect on microbial *** study clarified the effects of plantings on soil microbial diversity,which has an important implication for establishing appropriate policies and practices to improve the multiple functionalities(e.g.,biodiversity conservation and climate change mitigation)during plantation establishment.

关键词： Afforestation Microbial diversity Soil microbial communities Species-energy theory Plantations

A quadrivalent norovirus vaccine based on a chimpanzee adenovirus vector induces potent immunity in mice

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Virologica Sinica 2024年第4期39卷 675-684页

作者： Yihua Jiang Lingjin Sun Nan Qiao Xiang Wang Caihong Zhu Man Xing Hui Liu Ping zhou Dongming zhou Department of Pathogen Biology School of Basic Medical SciencesTianjin Medical UniversityTianjin300070China Shanghai Public Health Clinical Center Fudan UniversityShanghai201508China R&D Centre Chengdu Kanghua Biological Products Co.LtdChengdu610000China Institut Pasteur of Shanghai Chinese Academy of SciencesShanghai200031China

Norovirus(NoV)infection is a major cause of gastroenteritis *** virus poses great challenges in developing vaccines with broad immune protection due to its genetic and antigenic *** date,there are no approved NoV vaccines for clinical ***,we aimed to develop a broad-acting quadrivalent NoV vaccine based on a chimpanzee adenovirus vector,AdC68,carrying the major capsid protein(VP1)of noroviral GI and GII *** to intramuscular(i.m.),intranasal(i.n.),or other prime-boost immunization regimens(i.m.t i.m.,i.m.t i.n.,i.n.t i.m.),AdC68-GI.1-GII.3(e1)-GII.4-GII.17(e3),administered via i.n.t *** higher titers of serum IgG antibodies and higher IgA antibodies in bronchoalveolar lavage fluid(BALF)and saliva against the four homologous VP1s in *** also significantly stimulated the production of blocking antibodies against the four *** response to re-stimulation with virus-like particles(VLP)-GI.1,VLP-GII.3,VLP-GII.4,and VLP-GII.17,the quadrivalent vaccine administered according to the i.n.t *** effectively triggered specific cell-mediated immune responses,primarily characterized by IFN-γ***,the preparation of this novel quadrivalent NoV vaccine requires only a single recombinant adenovirus to provide broad preventive immunity against the major GI/GII epidemic strains,making it a promising vaccine candidate for further development.

关键词： Norovirus(NoV) Quadrivalent vaccine Adenovirus vector

Deep Global Multiple-Scale and Local Patches Attention Dual-Branch Network for Pose-Invariant Facial expression Recognition

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Computer Modeling in engineering & Sciences 2024年第4期139卷 405-440页

作者： Chaoji Liu Xingqiao Liu Chong Chen Kang zhou School of electrical and Information engineering Jiangsu UniversityZhenjiang212013China School of electrical engineering Yancheng Institute of TechnologyYancheng224051China

Pose-invariant facial expression recognition(FeR)is an active but challenging research topic in computer *** with the involvement of diverse observation angles,FeR makes the training parameter models inconsistent from one view to *** study develops a deep global multiple-scale and local patches attention(GMS-LPA)dual-branch network for pose-invariant FeR to weaken the influence of pose variation and selfocclusion on recognition *** this research,the designed GMS-LPA network contains four main parts,i.e.,the feature extraction module,the global multiple-scale(GMS)module,the local patches attention(LPA)module,and the model-level fusion *** feature extraction module is designed to extract and normalize texture information to the same *** GMS model can extract deep global features with different receptive fields,releasing the sensitivity of deeper convolution layers to pose-variant and *** LPA module is built to force the network to focus on local salient features,which can lower the effect of pose variation and self-occlusion on recognition ***,the extracted features are fused with a model-level strategy to improve recognition *** experimentswere conducted on four public databases,and the recognition results demonstrated the feasibility and validity of the proposed methods.

关键词： Pose-invariant FeR global multiple-scale(GMS) local patches attention(LPA) model-level fusion

三相异步电机在单相电源供电时稳态运行性能的分析和计算

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中国电机工程学报 1999年第7期19卷 49-52页

作者：吴新振金明周鹗青岛大学电气及自动化工程学院东南大学电气工程系

基于分析单相电机稳态运行的等效电流法，结合近代电路理论中网络图论的有关内容，推导了三角形接法三相异步电机在单相电源供电时，以矩阵形式表示的性能计算公式。将计算值和实验值进行比较的结果表明，两者是比较接近的。

关键词：三相异步电机单相电源供电运行性能网络图论

Water and other volatiles on Mars

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National Science Review 2024年第6期11卷 12-14页

作者： Sen Hu Yubing Gao Zhan zhou Liang Gao Yangting Lin Key Laboratory of the earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of Sciences College of earth and Planetary Sciences University of Chinese Academy of Sciences

Mars, the intriguing red planet, is one of the planets most similar to the earth in our solar system. It is widely accepted that Mars could have had a warm and wet climate in its early history supported by numerous lines of evidence, e.g. topography, canyons, outflow channels, presence of phyllosilicates and evaporative salts,sedimentary formation, and many others (e.g.[1]), and thus Mars is believed to once have a potentially habitable environment which could be able to supply fundamental conditions for the evolution of potential lives.

关键词： ISOTOPIC COMPOSITION MARTIAN ATMOSPHeRe SUBSURFACe WATeR ABUNDANCe TISSINT H2O CO2

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中日东亚货币合作——国际关系视角的分析

东南亚研究 2007年第2期 50-55页

作者：周聿峨罗俊翀暨南大学华侨华人研究所广州510630

当今国际政治经济格局与美元霸权是东亚货币合作的大背景,在这一背景下,东亚货币合作有着更深刻的国际利益分配的潜在内涵,而不只是单纯的区域货币合作问题。美、日、中三方的利益关切共同推动和影响着东亚货币合作的进程。日元和人民... 详细信息

当今国际政治经济格局与美元霸权是东亚货币合作的大背景,在这一背景下,东亚货币合作有着更深刻的国际利益分配的潜在内涵,而不只是单纯的区域货币合作问题。美、日、中三方的利益关切共同推动和影响着东亚货币合作的进程。日元和人民币都不具备独立作为东亚主导货币的条件,东亚各国或地区的经济发展水平差异较大,货币合作的政治基础比较薄弱等现实条件,促使合作成为中日双方的最佳选择,其中,中日双方政治互信的改善对东亚货币合作尤为重要。

关键词：东亚货币合作美元霸权国家利益相对获益

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马来西亚华族的民族母语教育

世界民族 2002年第3期 49-55页

作者：周聿峨龙向阳暨南大学华侨华人研究所暨南大学

移居世界各地的华人经过世代繁衍生息 ,逐步融合于当地社会。但各国、各地华人的融合程度、对本民族语言文化的保留程度、对本民族的认同程度等是大不相同的 ,马来西亚华人形成了较成熟的华族。本文认为 :一个民族的语文是这个民族世代... 详细信息

移居世界各地的华人经过世代繁衍生息 ,逐步融合于当地社会。但各国、各地华人的融合程度、对本民族语言文化的保留程度、对本民族的认同程度等是大不相同的 ,马来西亚华人形成了较成熟的华族。本文认为 :一个民族的语文是这个民族世代创造的结晶 ,它反映着该民族的民族精神、民族文化。一个民族要想存在下去 ,只有从整体上保持本民族文化的独特性。而对于民族文化的保持而言 ,民族母语教育十分关键。

关键词：马来西亚民族母语教育华文教育华文族群

Oxidative stress mediates glycidol-induced endothelial injury and its protection by 6-C-(e-2-fluorostyryl)naringenin

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Food Science and Human Wellness 2024年第5期13卷 2584-2594页

作者： Yue zhou Hui Xu Ka-Wing Cheng Feng Chen Qian zhou Mingfu Wang College of Civil and Transportation engineering/College of Chemistry and environmental engineering Shenzhen UniversityShenzhen 518060China

Glycidol is a common lipid-derived foodborne toxicant mainly presents in refined oils and related *** endothelial cells may be potential targets of the deleterious effects associated with glycidol *** human umbilical vein endothelial cells(HUVeCs),we found that glycidol treatment promoted endothelialto-mesenchymal transition(endMT)at a lower concentration(0.5 mmol/L),while induced apoptosis and inflammation at a higher concentration(1 mmol/L).These harmful effects were achieved by the activation of NF-κB/MAPK signaling pathway and were mediated by reactive oxygen species(ROS).In addition,the protective potential of 6-C-(e-2-fluorostyryl)naringenin(6-CeFN)against glycidol was evaluated and compared with *** pre-treated with 6-CeFN,but not naringenin,displayed resistance to endothelial dysfunction caused by glycidol.

关键词： Glycidol endothelial cells 6-C-(e-2-fluorostyryl)naringenin Oxidative stress endothelial-to-mesenchymal transition