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On large action space in EV charging scheduling optimization

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Science China(Information Sciences) 2022年第2期65卷 45-60页

作者： Zhaoyu JIANG qing-shan JIA Xiaohong GUAN Center for Intelligent and Networked Systems Beijing National Research Center for Information Science and Technology Department of Automation Tsinghua University MOE KLINNS Lab Xi'an Jiaotong University

In order to reduce the air pollution by traditional fossil fuel and save the charging cost, much attention has been paid to the charging scheduling of electric vehicles(EVs) in the uncertain supplement of wind power and solar power. Owing to the randomness in the renewable power generation and the EV charging demand, simulation-based policy improvement(SBPI) has been well adopted for making charging decision. However, it is challenging to explore the large action space which grows exponentially with respect to the system scale. We consider this important problem in this paper and make the following contributions.First, we explore the structural property of the problem and develop an urgency index to rank the EVs.Second, we apply three methods to search in the action space. Third, we numerically demonstrate the performance of the urgency index and the search methods, and compare the SBPI methods with the CPLEXbased method. It shows that SBPI improves the base policies in all these cases.

关键词： EV simulation-based policy improvement large action space sampling

二苯甲酮类多酚的糖基化衍生、活性评价及与PDIA6的相互作用

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药学学报 2024年第6期59卷 1706-1719页

作者：李蔷程宁宁冯秀娥李青山山西医科大学药学院山西太原030001 山西医科大学教育部慢性肾脏病医药基础研究创新中心山西太原030001 山西中医药大学基于炎性反应的重大疾病创新药物山西省重点实验室山西晋中030619

蛋白质二硫键异构酶A6(PDIA6)与炎症和内质网应激密切相关。为了获得靶向PDIA6且具有强抗炎作用的二苯甲酮类多酚糖基衍生物,本文以不同基团取代的二苯甲酮与α-溴代乙酰糖为起始原料,经傅克酰基化、脱乙酰基反应合成了25个目标糖基衍生... 详细信息

蛋白质二硫键异构酶A6(PDIA6)与炎症和内质网应激密切相关。为了获得靶向PDIA6且具有强抗炎作用的二苯甲酮类多酚糖基衍生物,本文以不同基团取代的二苯甲酮与α-溴代乙酰糖为起始原料,经傅克酰基化、脱乙酰基反应合成了25个目标糖基衍生物,并采用生物膜干涉(BLI)技术,定量研究其与PDIA6的相互作用,同时评价其体外抗炎作用。结果表明,化合物4b、10b、17b、18b、25b既与PDIA6有较高的亲和力,又具有很强的抗炎作用,这些化合物可能是通过直接作用于PDIA6,进而影响炎症相关的信号通路。尤其是,该类化合物对IL-1β和IL-6的抑制作用最为显著,推测其在治疗炎症性疾病方面有重要的开发前景。

关键词：二苯甲酮类多酚合成糖基化蛋白质二硫键异构酶A6 抗炎

基于语义地图的朝汉语正预期标记“■”与“果然”的对比研究

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中国朝鲜语文 2024年第3期 58-68页

作者：单清丛赵新建上海外国语大学

朝汉语预期范畴是近年来汉朝学界广泛关注的范畴之一。朝汉语通过不同的语法标记手段表示不同的预期范畴。本文主要基于语义地图,对朝汉语正预期标记“■”与“果然”的预期语义进行对比分析,初步可得出如下小结:第一,相同点方面,朝汉... 详细信息

朝汉语预期范畴是近年来汉朝学界广泛关注的范畴之一。朝汉语通过不同的语法标记手段表示不同的预期范畴。本文主要基于语义地图,对朝汉语正预期标记“■”与“果然”的预期语义进行对比分析,初步可得出如下小结:第一,相同点方面,朝汉语两种标记皆以正预期语义为核心在不同语境中向不同语义类型扩展,且主观化、语境吸收、认知突显等机制发挥重要作用;第二,不同点方面,朝鲜语“■”的语义类型较汉语“果然”有更丰富的倾向,且前者在语义地图中有向左侧扩展的倾向,后者有向右侧扩展的倾向。

关键词：正预期标记朝鲜语副词“■” 汉语副词“果然” 语义地图对比

Microporous metal-organic framework materials for efficient capture and separation of greenhouse gases

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Science China Chemistry 2023年第8期66卷 2181-2203页

作者： shan-qing Yang Tong-Liang Hu Banglin Chen School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin300350China Department of Chemistry University of Texas at San AntonioSan AntonioTexas78249-0698USA

The release of anthropogenic greenhouse gases into the atmosphere poses serious risks to the environment and human health,and is a global threat of growing concern.In order to ameliorate the greenhouse gas emission problems,the efficient capture and separation of these greenhouse gases are greatly meaningful.Metal-organic framework(MOF)materials,a relatively new kind of organic-inorganic hybrid porous materials with unique framework features,tunable pore environment and high surface areas,have been widely studied as regards their applicability to this implementation.And the well-defined structures of MOF materials greatly promote the understanding of structure-property relationships.In this review,we intend to provide a profound account of significant progress in the field of capture and separation of greenhouse gases using MOFs as adsorbents,including carbon dioxide,methane,nitrous oxide and fluorocompounds(such as perfluorocarbons,sulfur hexafluoride,hydrochlorocarbons,and hydrofluocarbons).The strategies used to realize the efficient capture and separation of greenhouse gases have been summarized,and the relationships between the frameworks,their capture and separation performances and mechanisms are discussed.Furthermore,the existing challenges and perspectives with regard to the development of MOF materials for the capture and separation of greenhouse gases and industrial practical application are outlined to further promote this very significant and active emerging topic.

关键词： porous materials metal-organic frameworks greenhouse gases capture and separation structure-property relationship

Tuning d-spacing of graphene oxide nanofiltration membrane for effective dye/salt separation

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Rare Metals 2023年第2期42卷 418-429页

作者： Chao Xing Chang-Yu Liu Chao Lai shan-qing Zhang Center for Clean Environment and Energy School of Environment and ScienceGold Coast CampusGriffith UniversitySouthportQLD4222Australia School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou221116China School of Biotechnology and Health Sciences Wuyi UniversityJiangmen529020China

The interlayer spacing(i.e.,d-spacing)plays a crucial role in determining the selectivity and permeability of nanofiltration membranes.A high-throughput directional filtration can be achieved by designing and controlling the d-spacing.In this study,the d-spacing of a graphene oxide(GO)membrane was tuned and fixed to the desired value(approximately 0.79 nm)using a solution of polyethyleneimine(PEI)and GO at a PEI/GO mass ratio of15:1.The resultant PEI/GO was deposited on a polyacrylonitrile(PAN)substrate to form a robust composite nanofiltration membrane(a PEI/GO@PAN membrane).The as-prepared membrane exhibited an ultrahigh flux of117.8 L·m^(-2)·h^(-1),and the rejection values for Direct Red80(DR80)and Na_(2)SO_(4)reached 99.7%and<1.7%,respectively;these are desirable values for dye/salt separation.The PEI/GO@PAN membrane exhibited an excellent filtration performance,and had a longer lifespan and excellent reusability because of its reinforced nature.This work suggested that tuning the d-spacing with PEI would be an effective strategy to achieve the anticipated functions of nanofiltration membranes.

关键词： Separation Nanofiltration Graphene oxide Membrane d-spacing

混合灰色关联和有限元法的铝合金三明治板轻量化设计

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机械设计与制造 2024年第2期396卷 343-348页

作者：龚青山吴东雨张光国孙章栋湖北汽车工业学院机械工程学院湖北十堰442000

汽车轻量化设计是实现节能减排的重要途径,为设计出性能优良的铝合金三明治货车防滑踏板,针对不同芯层结构的铝合金三明治板展开研究;建立了I型、V型、U型三种芯层结构的铝合金三明治板结构模型;应用有限元法对实际工况下I型、V型、U型... 详细信息

汽车轻量化设计是实现节能减排的重要途径,为设计出性能优良的铝合金三明治货车防滑踏板,针对不同芯层结构的铝合金三明治板展开研究;建立了I型、V型、U型三种芯层结构的铝合金三明治板结构模型;应用有限元法对实际工况下I型、V型、U型三种芯层结构的铝合金板的应力、位移值进行分析,并基于灰色关联法建立以质量、最大挠度、最大应力为变量的综合性能评价函数,得出V型铝合金三明治板为优选结构;以上、下板以及芯层厚度为优化变量,质量最小化为优化目标,分别采用全局响应面法及可行方向法对V型铝合金板进行尺寸优化,并对优化结果进行对比分析,发现两种方法优化方式均有较好的优化结果,但基于可行方向法的迭代时间更短、效率更高,优化后铝合金板减重约29.5%,具有很好的应用价值。

关键词：轻量化设计三明治板灰色关联法全局响应面法可行方向法

γ辐照-腐蚀后硼硅酸盐玻璃的形貌及元素行为

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辐射研究与辐射工艺学报 2024年第2期42卷 42-50页

作者：牛书通王相龙凌永生单卿史潮贾文宝张建东中核四〇四有限公司嘉峪关735100 南京航空航天大学材料科学与技术学院南京211106

硼硅酸盐玻璃是现有综合性能最好的深地处置高放废物固化材料,其辐照稳定性是影响放射性核素向生物圈泄漏的重要因素。对此,在室温下分别以8 kGy和800 kGy的γ射线辐照三组分硼硅酸盐玻璃(NBS),并对辐照后的样品在不同时间下的浸出行为... 详细信息

硼硅酸盐玻璃是现有综合性能最好的深地处置高放废物固化材料,其辐照稳定性是影响放射性核素向生物圈泄漏的重要因素。对此,在室温下分别以8 kGy和800 kGy的γ射线辐照三组分硼硅酸盐玻璃(NBS),并对辐照后的样品在不同时间下的浸出行为展开研究。采用光学显微镜和扫描电子显微镜(SEM)对实验样品的表面形貌进行分析,利用能量色散X射线谱仪(EDS)分析元素分布,并用电感耦合-等离子体光发射光谱仪(ICP-OES)对溶液元素进行表征。结果表明:γ射线在8~800 kGy的吸收剂量范围内会对硼硅酸盐玻璃的浸出行为产生影响。此外,随着腐蚀时间的延长,玻璃腐蚀效应逐渐覆盖了辐照效应。与8 kGy辐照相比,NBS玻璃样品在800 kGy辐照下的元素行为变化更为明显。在高剂量辐照后,腐蚀对表面形貌的影响更为显著,而腐蚀7 d后NBS玻璃的元素浸出率更高。

关键词： γ 辐照硼硅酸盐玻璃表面形貌元素浸出

高原缺氧环境下肠道菌群紊乱与肠道疾病的研究进展

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中国现代普通外科进展 2024年第3期27卷 242-244页

作者：梁青山刘沙庄卓男武警西藏总队医院外一科西藏拉萨850000 武警西藏总队医院外三科西藏拉萨850000 清华大学附属北京清华长庚医院胃肠外科北京102218

青藏高原以其高海拔、低氧分压、强紫外线及寒冷干燥的气候为特点,其中低氧分压对人体损害尤为严重[1]。对于初入高原的新兵而言,低氧分压导致的急性高原反应可通过吸氧缓解,而对于肠道菌群紊乱引起的肠道疾病大多较为隐匿,且进展缓慢,... 详细信息

青藏高原以其高海拔、低氧分压、强紫外线及寒冷干燥的气候为特点,其中低氧分压对人体损害尤为严重[1]。对于初入高原的新兵而言,低氧分压导致的急性高原反应可通过吸氧缓解,而对于肠道菌群紊乱引起的肠道疾病大多较为隐匿,且进展缓慢,易被忽视,待出现肠道症状时,疾病进展便可能具有不可逆性[2],极大影响了高原部队的战斗力。

关键词：高原低氧分压肠道菌群紊乱

Repair of posterior ventricular septal rupture by right atrial approach

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Journal of Geriatric Cardiology 2023年第12期20卷 886-889页

作者： shan-qing BAO Teng-Long WANG Yuan-Hong LI Cheng-Xin ZHANG Department of Cardiovascular Surgery First Affiliated Hospital of Anhui Medical UniversityHefeiChina

Ventricular septal rupture(VSR)is a serious complication that may occur after myocardial infarction(MI).[1]If left untreated,it will lead to high morbidity and mortality.Although several surgical interventions have been developed,mortality and complications associated with surgical management are still high,especially in terms of transventricular approaches.[2]

关键词： rupture mortality ventricular