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美食美器——清代宫廷饮食器具述论

白城师范学院学报 2024年第4期38卷 1-9页

作者：万秀锋故宫博物院宫廷历史部北京100009

清代作为中国最后一个专制王朝,其宫廷饮食器具在承继中国历代宫廷精致奢华的基础上也有一些自身特点。清代宫廷拥有造办处、御窑厂、江南三织造等御用器物制作机构,保证了其饮食器具的精美奢华。清宫的饮食器具材质上乘、工艺精湛、装... 详细信息

清代作为中国最后一个专制王朝,其宫廷饮食器具在承继中国历代宫廷精致奢华的基础上也有一些自身特点。清代宫廷拥有造办处、御窑厂、江南三织造等御用器物制作机构,保证了其饮食器具的精美奢华。清宫的饮食器具材质上乘、工艺精湛、装饰精美,代表着清代饮食器具的最高水平。清宫的饮食器具不仅继承了中国传统宫廷饮食文化的精华,还融合了清代统治区域内不同民族、不同文化的饮食器具的精髓。同时,清宫饮食器具又是宫廷典制和宫廷礼仪在饮食文化上的反映,严苛的等级差异和礼制要求使得精美的宫廷饮食器具带有部分“礼器”的性质。

关键词：清代宫廷饮食器具

1961~2020年三峡库区极端降水的变化特征研究

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长江流域资源与环境 2024年第3期33卷 625-633页

作者：艾婉秀赵珊珊陈鲜艳杨明珠国家气候中心北京100081

极端降水对于三峡水利工程的调度蓄水和防洪调控具有重要的作用,在气候变化背景下三峡库区极端降水的变化特征值得研究。基于三峡库区1961~2020年33个气象台站的降水观测资料,分析了该地区小时、日和连续降水量极端降水的时空变化特征... 详细信息

极端降水对于三峡水利工程的调度蓄水和防洪调控具有重要的作用,在气候变化背景下三峡库区极端降水的变化特征值得研究。基于三峡库区1961~2020年33个气象台站的降水观测资料,分析了该地区小时、日和连续降水量极端降水的时空变化特征。结果表明,三峡库区小时降水量、日降水量和连续降水量极大值的空间分布均呈东南部大、西南部和东北部小的特征,但历年最大值的变化趋势空间分布存在差异。三峡库区小时、日和连续降水量极端事件的阈值均呈“东大西小”的分布特征,其中湖北鹤峰的日降水量和连续降水量极端事件阈值均为各站点中最大。在气候增暖背景下,三峡库区日降水量极端事件在夏季尤其是6~7月发生频次增多,连续降水量极端事件更集中发生在夏季,小时和日降水量极端事件年频次自2001年以后呈增加趋势,这可能会加重三峡库区的暴雨洪涝灾害风险。

关键词：三峡库区极端降水事件阈值变化趋势

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《共产党宣言》中的现代化思想及其价值意蕴

社科纵横 2024年第2期39卷 60-68页

作者：万秀丽林玲新兰州大学马克思主义学院兰州730000

现代化思想是马克思主义科学理论研究的核心内容之一。回归马克思、恩格斯共同所写的《共产党宣言》,从经典文本内容中探寻和研读马克思、恩格斯现代化思想,通过历史动因、思想动因、现实动因分析和梳理马克思、恩格斯现代化思想的生成... 详细信息

现代化思想是马克思主义科学理论研究的核心内容之一。回归马克思、恩格斯共同所写的《共产党宣言》,从经典文本内容中探寻和研读马克思、恩格斯现代化思想,通过历史动因、思想动因、现实动因分析和梳理马克思、恩格斯现代化思想的生成逻辑,围绕主体力量、内在动力、制度保障、实现路径、价值旨归理解和阐释马克思、恩格斯现代化思想的丰富内涵,立足当代现代化发展的现实需要,从理论层面与实践层面思考和感悟马克思、恩格斯现代化思想的价值意蕴,将马克思主义现代化思想推向新的发展阶段。

关键词：《共产党宣言》现代化思想中国式现代化

Viscosity and surface tension of CaF_(2)-CaO-Al_(2)O_(3)-based slag with varying SiO_(2) and B_(2)O_(3) contents for ESR of rotor steel

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Journal of Iron and Steel Research International 2023年第1期30卷 74-81页

作者： Yi Huang Cheng-bin Shi xiu-xiu wan Yu-jing Liang Jing Li Shu-jie Liu State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Xingtai Shuzhi Metallurgy Technology Co. Ltd.Xingtai 054027HebeiChina

The effect of SiO_(2) and B_(2)O_(3) on viscosity and surface tension of CaF_(2)-CaO-Al_(2)O_(3)-MgO-SiO_(2)-B_(2)O_(3) slag designed for electroslag remelting of rotor steel was *** viscosity of the slag melts increases with increasing the SiO_(2) content from 0.37 to 8.03 mass%,and the viscous activation energy increases from 54.21 to 58.49 kJ/*** B_(2)O_(3) content of the slag from 0 to 3.62 mass%exhibits a similar effect on the viscosity,and the activation energy increases from 47.30 to 55.71 kJ/*** increase in the viscosity and activation energy for viscous flow of slag is attributed to the enhanced polymerization degree of slag melts network with increasing either SiO_(2) or B_(2)O_(3) *** surface tension of slag melts decreases with increasing *** surface tension of slag melts decreases with increasing either SiO_(2) or B_(2)O_(3) content,which is originated from the increase in the polymerization degree and the decrease in the CaO content of the slag.

关键词： High-fluoride slag Structure Viscosity Surface tension Activation energy

Effect of SiO_(2) and B_(2)O_(3) on crystallization and structure of CaF2–CaO–Al_(2)O_(3)-based slag for electroslag remelting of ultra-supercritical rotor steel

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Journal of Iron and Steel Research International 2021年第12期28卷 1530-1540页

作者： Yi Huang Cheng-bin Shi xiu-xiu wan Jiang-ling Li Ding-li Zheng Jing Li State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China College of Materials Science and Engineering Chongqing UniversityChongqing400044China The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina

Regarding development of the dedicated slag for electroslag remelting,crystallization characteristics of the slag exert a strong influence on the initial solidification of liquid metal in mold and surface quality of as-cast *** crystallization behavior of CaF_(2)-CaO-Al_(2)O_(3)-based slag with varying SiO_(2)and B_(2)O_(3)contents and their correlation with the slag structure were *** SiO_(2)(0.24-8.95 mass%)and B_(2)O_(3)(0-3.20 mass%)contents lowers the crystallization temperature and suppresses the crystallization of the slag melts,as well as decreases the sizes of the crystalline *** crystalline phases precipitated during continuous cooling of the slag melts are faceted 11CaO·7Al_(2)O_(3)·CaF_(2),faceted or spherical CaF_(2),and non-faceted MgO·Al_(2)O_(3)(or MgO)in sequence irrespective of the SiO_(2)and B_(2)O_(3)contents of the *** polymerization degree of slag melts increases with increasing either SiO_(2)or B_(2)O_(3)*** crystallization of the slag melts is increasingly retarded with increasing the SiO_(2)and B_(2)O_(3)contents of the slag caused by increased component diffusion resistance originating from increased polymerization degree of the slag melts.

关键词： Crystallization Slag structure Polymerization degree Electroslag remelting Ultra-supercritical rotor steel

Functional characterization of a potassium transporter gene NrHAK1 in Nicotiana rustica

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第12期9卷 944-952页

作者： Zhao-kui GUO Qian YANG xiu-qing wan Pei-qiang YAN Department of Life Sciences and Engineering Harbin Institute of Technology Harbin 150001 China Mudanjiang Tobacco Research Institute Mudanjiang 157011 China

The purpose of this study is to investigate the function of a novel potassium transporter gene (NrHAK1) isolated from Nicotiana rustica roots using yeast complement and real-time PCR technique. The complementary DNA (cDNA) of NrHAK1, 2 488 bp long, contains an open reading frame (ORF) of 2 334 bp encoding a protein of 777 amino acids (87.6 kDa) with 12 predicted transmembrane domains. The NrHAK1 protein shows a high sequence similarity to those of high-affinity potassium transporters in Mesembryanthemum, Phytolacca acinosa, Arabidopsis thaliana, and so on. We found that the NrHAK1 gene could complement the yeast-mutant defect in K+ uptake. Among several tissues surveyed, the expression level of NrHAK1 was most abundant in the root tip and was up-regulated when exposed to potassium starvation. Moreover, the transcript accumulation was significantly reduced by adding 5 mmol/L NH4+ to the solution. These results suggest that NrHAK1 plays an important role in potassium absorption in N. rustica.

关键词： Functional characterization K^+ transporter Nicotiana rustica

Repeatability and agreement of two anterior segment OCT in myopic patients before implantable collamer lenses implantation

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International Journal of Ophthalmology(English edition) 2020年第4期13卷 625-631页

作者： Xi-Fang Zhang Meng Li Yan Shi xiu-Hua wan Huai-Zhou wang Beijing Tongren Eye Center Beijing Tongren HospitalCapital Medical UniversityBeijing Institute of OphthalmologyBeijing Ophthalmology and Visual Sciences Key LaboratoryBeijing 100730China

AIM: To evaluate the intra-operator repeatability of time domain and swept-source Fourier domain anterior segment optical coherence tomography(AS-OCT), namely, Visante ASOCT and Casia SS-1000 OCT, in measuring the preoperative parameters of implantable collamer lens(ICL) in myopic eyes, as well as the agreement between the two ***: A total of 97 eyes from 49 myopes were investigated in this prospective case series study. The anterior chamber depth(ACD), angle-to-angle distance(ATA), pupil diameter(PD) and crystalline lens rise(CLR) in all subjects were measured for three times during one session by the same operator. The repeatability was evaluated using the within-subject standard deviation(Sw), repeatability limits and intraclass correlation coefficients(ICC). The agreement between the two systems was evaluated using the Bland-Altman plots and 95% limits of agreement(Lo A).RESULTS: The repeatability limits of Visante AS-OCT in measuring ACD, ATA, PD and CLR were 0.099, 0.141, 0.304, and 0.079 mm, respectively. The repeatability limits of Casia SS-1000 OCT in measuring ACD, ATA, PD, and CLR were 0.105, 0.127, 0.357, and 0.082 mm, respectively. Excellent repeatability could be attained in both devices, with the ICC>0.8 for all the measured variables. The interdevice agreement was excellent(P>0.05) for ACD and ATA, but poor(P<0.05) for PD and ***: Good repeatability can be attained by time domain and swept-source Fourier-domain OCT for all the measured variables. Moreover, interdevice agreement analysis suggests that interchangeable measurements between two devices can be achieved for ACD and ATA, but not for PD and CLR;but the differences in measurements were not clinically significant.

关键词： repeatability agreement Visante AS-OCT Casia SS-1000 OCT implantable collamer

Climate services for addressing climate change: Indication of a climate livable city in China

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Advances in Climate Change Research 2021年第5期12卷 744-751页

作者： wanG Yu-Jie CHEN Yu Chris HEWITT DING Wei-Hua SONG Lian-Chun AI wan-xiu HAN Zhen-Yu LI xiu-Cang HUANG Zi-Li Key Laboratory of Meteorological Disaster Ministry of Education/International Joint Research Laboratory on Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjing210044China School of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing210044China Laboratory for Climate Change National Climate CenterChina Meteorological AdministrationBeijing100081China Met Office ExeterEX13BPUK University of Southern Queensland ToowoombaQld4350Australia Jiande Meteorological Service Zhejiang Meteorological BureauHangzhou311600China

China, like many countries, is under great pressure to reduce climate change and adapt to current situations while simultaneously undertaking economic development and transformation. This study takes advantage of climate opportunities and provides a new concept and mode of urban climate services in order to address climate change. Eighteen indicators based on climate and climate-related variables were used to provide an assessment, in the form of an index, of how livable a city is depending on prevailing climatic conditions. The resulting index can also be used to investigate how recent and future changes in the climatic conditions could affect livability. All Chinese cities and regions share the common goals of promoting low-carbon development, improving resilience against climate change, and integrating economic growth with climate actions. Climate services have been developed in China to provide decision-makers this measure of livability. Such a move facilitates sustainable development alongside economic growth by aiding government efforts in climate adaptation and low-carbon development. Our approach represents multidisciplinary and demand-driven research on adaptation to and the impacts of regional climate change, thereby transforming climate science into a climate service and ensuring that climate information can be provided in a scientific, practical, and customized way for policy-makers. The outputs can be used locally to take concrete climate actions and integrate climate services into decision-making processes.

关键词： Climate services Addressing climate change Climate livable city China

Ascovirus and its Evolution

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中国病毒学 2007年第2期22卷 137-147页

作者： Xiao-Wen Cheng xiu-Feng wan Jianli Xue Richard C. Moore Department of Microbiology Department of Botany Miami University Oxford Ohio 45056 USA

Ascoviruses, iridoviruses, asfarviruses and poxviruses are all cytoplasmic DNA viruses. The evolutionary origins of cytoplasmic DNA viruses have never been fully addressed. Morphological, genetic and molecular data were used to test if all four cytoplasmic virus families (Ascoviridae, Iridoviridae, Asfarviridae, and Poxvirirdae) evolved from nuclear replicating baculoviruses and how the four virus groups are related. Molecular phylogenetic analyses using DNA polymerase predicted that cytoplasmic DNA viruses might have evolved from nuclear replicating baculoviruses, and that poxviruses and asfarviruses share a common ancestor with iridoviruses. These three cytoplasmic viruses again shared a common ancestor with ascoviruses. Morphological and genetic data predicted the same evolutionary trend as molecular data predicted. A genome sequence comparison showed that ascoviruses have more baculovirus protein homologues than do iridoviruses, which suggested that ascoviruses have evolved from baculoviruses and iridoviruses evolved from ascoviruses. Poxviruses showed genetic and morphological similarity to other cytoplamic viruses, such as ascoviruses, suggesting it has undergone reticulate evolution via hybridization, recombination and lateral gene transfer with other viruses. Within the ascovirus family, we tested if molecular phylogenetic analyses agree with biological inference; that is, ascovirus had an evolutionary trend of increasing genome size, expanding host range and widening tissue tropism for these viruses. Both molecular and biological data predicted this evolutionary trend. The phylogenetic relationship among the four species of ascovirus was predicted to be that TnAV-2 and HvAV-3 shared a common ancestor with SfAV-1 and the three virus species again shared a common ancestor with DpAV-4.

关键词：细胞病毒分子种系系统识别技术