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系列性悖论与“再系列”的衍生电影

当代电影 2024年第2期 107-113页

作者：刘姝媛上海大学上海电影学院

近年来,系列电影成为电影工业中的焦点议题。“唐人街探案”“流浪地球”“战狼”等系列电影品牌在票房市场大放异彩的同时,系列电影开发的周期性困境也开始浮现。面对系列电影品牌在生产、叙事、消费等环节日渐显露的系列性悖论,衍生... 详细信息

近年来,系列电影成为电影工业中的焦点议题。“唐人街探案”“流浪地球”“战狼”等系列电影品牌在票房市场大放异彩的同时,系列电影开发的周期性困境也开始浮现。面对系列电影品牌在生产、叙事、消费等环节日渐显露的系列性悖论,衍生电影通过“大系列开发”“边缘叙事”以及对观影经验的“过滤”与消费体验的“重置”巧妙突破系列性悖论的桎梏,实现系列电影的“再系列”与电影系列的“再生产”,为电影工业的可持续发展提供新面向。

关键词：系列电影衍生电影系列性悖论 “再系列” 电影工业美学

Numerical simulation of particle formation and evolution in a vehicle exhaust plume using the bimodal Taylor expansion method of moments

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Particuology 2019年第2期17卷 46-55页

作者： shuyuan liu Tat Leung Chan Huijie liu Department of Mechanical Engineering The Hong Kong Polytechnic University Kowloon Hong Kong China

The bimodal Taylor expa nsion method of moments (B-TEMOM) model scheme was developed to simulate the formation and evolution of vehicle exhaust particles. Two independent types of log-normal particle size distributions were selected in the B-TEMOM model scheme, comprising large and small particles to represent background (i.e., the surrounding environment) and vehicle exhaust particles, respectively. Concentration distributions of exhaust and background particles derived using this model scheme were verified against results from a moving secti onal method and the bimodal quadrature method of moments, showing excellent agreement. The effects of vehicle tailpipe ex 让 cond 让 ions (e.g., exhaust particle concentrations and velocity), sulfurcontent, and relative humidity on the evoluti on of particles were investigated numerically. Both two-dimensional and three-dimensional numerical simulations showed that tailpipe exit velocity and relative humid让y did not greatly affect the steady-state concentrations or the diameters of particles in urban atmospheres. Although an increase in sulfur content had little effect on the particle concentration, it led to background particles with larger geometric average diameter entering the environment. This coupled CFD-B-TEMOM numerical model provides a simple but accurate and efficient method for studying bimodal aerosol dynamics.

关键词： Vehicle exhaust particles Bimodal Taylor expansi on method of moments Homogeneous nucleation Coagulation Tailpipe exit velocity Sulfur content and ambient relative humidity

Zn掺杂提升AgSnSbSe3热电性能的研究

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华中科技大学学报(自然科学版) 2024年第6期52卷 124-129页

作者：刘海强罗裕波范淑媛华中科技大学材料科学与工程学院材料成型与模具技术国家重点实验室湖北师范大学物理与电子科学学院

通过高温熔炼的方法制备掺Zn的Ag Sn Sb Se3，分析了Ag Sn Sb Se3掺Zn后得到的Ag Sn Sb1-xZnxSe3（x=0.01,0.02,0.03,0.04）的相组成、形貌、元素组成和热电性能的关系，并利用COMSOL Multiphysic仿真模拟了热电优值（ZT值）最高的Ag Sn... 详细信息

通过高温熔炼的方法制备掺Zn的Ag Sn Sb Se3，分析了Ag Sn Sb Se3掺Zn后得到的Ag Sn Sb1-xZnxSe3（x=0.01,0.02,0.03,0.04）的相组成、形貌、元素组成和热电性能的关系，并利用COMSOL Multiphysic仿真模拟了热电优值（ZT值）最高的Ag Sn Sb0.98Zn0.02Se3的发电性能．研究表明：所有样品均为高对称的岩盐Na Cl结构，Zn掺杂可在样品中形成纳米第二相，一定量的Zn掺杂可协同优化Ag Sn Sb Se3的电声输运性能，样品Ag Sn Sb0.98Zn0.02Se3获得最高热电优值0.86@823 K．当温差为460 K时，获得的最大发电功率为11.372 m W，发电效率为5%，对Ag Sn Sb Se3掺杂外来原子可提升其热电性能．

关键词：掺杂高温熔炼热电材料电声输运性能热电性能

Bimetallic nickel molybdate supported Pt catalyst for efficient removal of formaldehyde at low temperature

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Journal of Environmental Sciences 2020年第1期32卷 173-183页

作者： Gang Huang Zhaoxiong Yan shuyuan liu Tingting Luo Liang An Zhihua Xu Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan UniversityWuhan 430056China Department of Pharmacology Shenyang Medical CollegeShenyang 110034China Materials Analysis Center Wuhan University of TechnologyWuhan 430070China

Efficient removal of formaldehyde from indoor environments is of significance for human health.In this work,a typical binary transition metal oxide that could provide various oxidation states,β-NiMoO4,was employed as a support to immobilize the active Pt component(Pt/NiMoO4)for catalytic formaldehyde elimination at low ambient temperature(15℃).The results showed that the hydrothermal preparation temperature and time had a noticeable impact on the morphology and catalytic activity of the samples.The catalyst prepared with hydrothermal temperature of 150℃for 4 hr(Pt-150-4)exhibited superior catalytic activity and stability mainly due to its distinctly porous structure,relative abundance of adsorbed surface hydroxyls/water,and high oxidation ability,which resulted from the interaction of Pt with Ni and Mo of the bimetallic NiMoO4 support.Our results might shed light on the rational design of multifunctional catalysts for removal of indoor air pollutants at low ambient temperature.

关键词： Catalytic oxidation HCHO removal Supported Pt nanoparticles NiMoO4 nanoflakes Ambient temperature Porous structure

Characteristics of earthquake clustering in and around Japan revealed by single-link cluster analysis

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Earthquake Science 2019年第5期32卷 221-228页

作者： shuyuan liu Qinghua Huang Department of Geophysics School of Earth and Space SciencesPeking UniversityBeijing 100871China

In this study,we apply the single-link cluster(SLC)method to analyze the characteristics of earth-quake clustering in Japan.Among the clustering algorithms,the SLC method is effpctive in characterizing earthquake clusters or isolated events at both global and local scales.The results indicate that link lengths for the whole investigated area in and around Japan follow negative exponential functi-onal or Gamma distribution functional increase.Besides,some difference is revealed among different areas,e.g.,link lengths in the area of the Japan Trench and the Kuril Trench are shorter than those in other areas;the densest spatial distribution of the SLC framework is also in the area of the Japan Trench and the Kuril Trench.The close investigations indicate that the a and 1/θvalues estimated respectively from the exponential function and Gamma distribution may relate to spatial clustering,which is supported by the results of the distribution of link lengths and the spatial distribution of the SLC framework in the investigated areas.

关键词： earthquake clustering single-link cluster method Japan

The spectrum of rare monogenic diseases in patients with premature coronary artery disease

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中华医学杂志(英文版) 2024年第10期137卷 2024 Feb 1页

作者： Teng Yaqun Du Tian Feng Siqin Tian Ran liu Yaping Guo Jian Wang Lei Zhang Zhiyu Luan Xiaodong He Shan Zhuang Shengsheng Wang Yifei Zhang shuyuan Chen Shi liu Zhenyu Zhang Shuyang Department of Cardiology State Key Laboratory of Complex Severe and Rare disease Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China Department of Internal Medicine Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China Department of Basic Medical Sciences Tsinghua University School of Medicine Beijing China Department of Breast Oncology Sun Yat-sen University Cancer Center Guangzhou Guangdong China McKusick-Zhang Center for Genetic Medicine State Key Laboratory of Medical Molecular Biology Institute of Basic Medical Sciences Chinese Academy of Medical Sciences School of Basic Medicine Peking Union Medical College Beijing China Tsinghua University-Peking University Joint Center for Life Sciences Beijing China Department of Cardiology Beijing Tsinghua Changgung Hospital Tsinghua University Beijing China Department of Endocrinology Key Laboratory of Endocrinology of National Health Commission Peking Union Medical College Hospital Chinese Research Center for Behavior Medicine in Growth and Development Beijing China

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分工与合作:源起性社会伦理的生成

社会科学战线 2024年第3期345卷 8-15页

作者：李建华刘树源武汉大学哲学学院湖北武汉430072 武汉大学应用伦理学研究中心湖北武汉430072

分工与合作是社会学、政治学、人类学、管理学、心理学等学科关注的重点问题,但一直游离于伦理学视野之外。就真实的社会伦理生活景象而言,社会分工关系才是人类最早的社会关系,它不仅是生产力的范畴,也是生产关系的范畴;不仅是经济现象... 详细信息

分工与合作是社会学、政治学、人类学、管理学、心理学等学科关注的重点问题,但一直游离于伦理学视野之外。就真实的社会伦理生活景象而言,社会分工关系才是人类最早的社会关系,它不仅是生产力的范畴,也是生产关系的范畴;不仅是经济现象,更是一种重要的伦理现象,因为它是人类生活的“第一秩序”,也是最原初的伦理关系。因分工产生的合作是人类道德进步的标志性成果,也是社会伦理关系缔结的重要纽带,更是伦理协调的坚实基础,但合作的进化与合作的复杂性也充分表明,在现代社会,合作本身的伦理问题日益凸现,集中在合作的利益取舍上。在传统社会治理模式下,合作的规则外在于合作本身,选择合作就是先选择合作规则,而现代社会治理模式下,合作则表现为与对规则的选择与遵守是同时进行的,这其中不但有充分的对话沟通机制,而且均出自人己皆利的价值立场,否则会各自强调对自己有利的规则而导致合作失败,这就需要构建一种超越于自利性的现代合作伦理。

关键词：分工合作人己皆利协调伦理

CCUS应用下660MW燃煤电站度电成本与电力供应成本分析

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动力工程学报 2024年第4期44卷 547-556,574页

作者：赵淑媛袁鑫刘骏陈衡王修彦华北电力大学能源动力与机械工程学院北京102206

为研究燃煤机组进行碳的捕获、利用与封存(CCUS)改造后度电成本与电力供应成本的变化情况,综合当前电-碳双市场发展趋势总结分析出燃煤机组CCUS应用的成本、收益情况并建立仿真模型,同时对配备CCUS的660 MW燃煤电站进行度电成本与电力... 详细信息

为研究燃煤机组进行碳的捕获、利用与封存(CCUS)改造后度电成本与电力供应成本的变化情况,综合当前电-碳双市场发展趋势总结分析出燃煤机组CCUS应用的成本、收益情况并建立仿真模型,同时对配备CCUS的660 MW燃煤电站进行度电成本与电力供应成本的折算分析,最后以碳捕集成本、碳交易价格为变量进行敏感性分析。结果表明:火电机组经CCUS改造后,预测度电成本将于2034—2035年下降至电网区域煤电交易基准价向上浮动20%的范畴,于2039年后实现改造前后度电成本变化率为负数,即改造后度电成本低于改造前度电成本的目标,此外尽管碳捕集成本、碳交易价格将对度电成本和电力供应成本产生不同程度的影响,但在两者的耦合作用下,火电机组CCUS改造项目仍具有良好的经济性效果。

关键词：燃煤电站燃烧后碳捕集度电成本电力供应成本碳交易市场

鱼油n-3 PUFA富集、稳态化技术及生物活性研究进展

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中国食品学报 2024年第2期24卷 467-478页

作者：刘书源郭明珠马爱进桑亚新孙纪录河北农业大学食品科技学院河北保定071000 北京工商大学食品与健康学院北京100048

鱼油富含人体所需的多不饱和脂肪酸,在科研与应用领域具有广泛价值。本文重点围绕其n-3 PUFA富集工艺、稳态化技术及生物活性进行综述,阐述不同方法的优、缺点,分析工业化生产的可行性,展望未来鱼油加工领域的发展趋势,旨在为鱼油类资... 详细信息

鱼油富含人体所需的多不饱和脂肪酸,在科研与应用领域具有广泛价值。本文重点围绕其n-3 PUFA富集工艺、稳态化技术及生物活性进行综述,阐述不同方法的优、缺点,分析工业化生产的可行性,展望未来鱼油加工领域的发展趋势,旨在为鱼油类资源的合理、健康、可持续发展提供理论依据。

关键词：鱼油富集工艺稳态化 n-3 PUFA