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Food Science and Human Wellness 2023年第2期12卷 647-661页

作者： siyuan su Xiang Ding Yiling Hou Binbin Liu Zhouhe Du Junfeng Liu Key Laboratory of Southwest China Wildlife Resources Conservation College of Life SciencesChina West Normal UniversityNanchong 637009China Sericultural Research Institute Sichuan Academy of Agricultural SciencesNanchong 637000China College of Environmental Science and Engineering China West Normal UniversityNanchong 637009China

A new water-soluble heteropolysaccharide with a molecular weight of 15 k Da was isolated from the fruiting bodies of Boletus reticulatus *** characterization results revealed that *** Schaeff polysaccharide(BRS-X)had a backbone of 1,6-linkedα-D-galactose and 1,2,6-linkedα-D-galactose which branches were mainly composed of a terminal 4-linkedβ-D-glucose and the ratio of D-galactose and D-glucose was 5:*** assays indicated that BRS-X displayed a strong proliferative activity in T cells and B cells and promoted the secretion of immunoglobulin G(Ig G),Ig E,Ig D and Ig *** addition,BRS-X could facilitate the proliferation and phagocytosis of RAW264.7 cells and could significantly inhibit the growth of tumors in S180-bearing *** results of transcriptome sequencing analysis illustrated that total 46 genes enriched in MAPK and total 34 genes enriched in PI3 K/Akt signaling pathways in BRS-X *** protein VEGF and VEGFR expression were significantly reduced under the treatment with *** findings provide a scientific basis for the edible and medicinal value of BRS-X.

关键词： Boletus reticulatus Schaeff Polysaccharides Structure identification Immunomodulatory activity Antitumor activity

Effect of Shale Reservoir Characteristics on Shale Oil Movability in the Lower Third Member of the Shahejie Formation, Zhanhua Sag

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Acta Geologica Sinica(English Edition) 2020年第2期94卷 352-363页

作者： NING Chuanxiang MA Zhongliang JIANG Zhenxue su siyuan LI Tingwei ZHENG Lunju WANG Guozhen LI Fengxun State Key Laboratory of Shale Oil and Gas Enrichment and Effective Development Wuxi 214126.JiangsuChina Wuxi Research Institute of Petroleum GeologySinopec Exploration and Production Research Institute Wuxi 214126JiangsuChina Unconventional Natural Gas Institute China University of PetroleumBeijing 102249China College of Earth Science.Jilin University Changchun 130012China Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Mineral Shandong University of Science and TechnologyQingdao 266590China Gas Hydrate Engineering Technology Center Guangzhou Marine Geological SurveyGuangzhou 510075China

To reveal the effect of shale reservoir characteristics on the movability of shale oil and its action mechanism in the lower third member of the Shahejie Formation(Es3l), samples with different features were selected and analyzed using N2 adsorption, high-pressure mercury injection capillary pressure(MICP), nuclear magnetic resonance(NMR), high-speed centrifugation, and displacement image techniques. The results show that shale pore structure characteristics control shale oil movability directly. Movable oil saturation has a positive relationship with pore volume for radius > 2 μm, as larger pores often have higher movable oil saturation, indicating that movable oil is present in relatively larger pores. The main reasons for this are as follows. The relatively smaller pores often have oil-wetting properties because of organic matter, which has an unfavorable effect on the flow of oil, while the relatively larger pores are often wetted by water, which is helpful to shale oil movability. The rich surface provided by the relatively smaller pores is beneficial to the adsorption of immovable oil. Meanwhile, the relatively larger pores create significant pore volume for movable oil. Moreover, the larger pores often have good pore connectivity. Pores and fractures are interconnected to form a complex fracture network, which provides a good permeability channel for shale oil flow. The smaller pores are mostly distributed separately;thus, they are not conducive to the flow of shale oil. The mineral composition and fabric macroscopically affect the movability of shale oil. Calcite plays an active role in shale oil movability by increasing the brittleness of shale and is more likely to form micro-cracks under the same stress background. Clay does not utilize shale oil flow because of its large specific surface area and its block effect. The bedding structure increases the large-scale storage space and improves the connectivity of pores at different scales, which is conducive t

关键词： shale oil movability shale reservoirs pore structure characteristics lower third member of the Shahejie Formation

Lenalidomide downregulates ACE2 protein abundance to alleviate infection by SARS-CoV-2 spike protein conditioned pseudoviruses

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Signal Transduction and Targeted Therapy 2021年第6期6卷 1664-1667页

作者： siyuan su Jianfeng Chen Ying Wang Lilly M.Wong Zhichuan Zhu Guochun Jiang Pengda Liu Lineberger Comprehensive Cancer Center The University of North Carolina at Chapel HillChapel HillNCUSA Department of Biochemistry and Biophysics The University of North Carolina at Chapel HillChapel HillNCUSA UNC HIV Cure Center Institute of Global Health and Infectious DiseasesThe University of North Carolina at Chapel HillChapel HillNCUSA

Dear Editor,The recent health emergency caused by SARS-CoV-2 created a global *** to other CoVs,SARS-CoV-2 utilizes its Spike(S)protein to specifically recognize the human angiotensin converting enzyme 2(ACE2)membrane... 详细信息

关键词： ACE2 infection utilize

Fundamental Research and Application Exploration of Optoelectronic Materials and Nanocomposite Materials of Rare Earth

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Bulletin of the Chinese Academy of Sciences 2011年第2期25卷 133-134页

作者： ZHANG Hongjie WU Zhijian ZHANG siyuan su Qiang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry CAS

This project is set in one of the international frontier research fields in inorganic solid *** present, the research in organic/inorganic hybrid materials and nanocomposite optoelectronic functional materials is under the spotlight in the realm of materials science; there remain quite a few difficulties hiding in the traditional synthesis *** instance, the reaction cycle is generally too long, rare earth luminescence components are covalently grafted onto the matrix network, and the stability and luminescence properties are quite ***, *** and his colleagues proposed a series of new methods and technologies through systematic studies to prepare organic/inorganic hybrid materials and nanocomposite optoelectronic functional materials, striving to solve those kinds of *** many years' efforts, a scientific basis was established by the scientists for the design and performance of the materials, which is recognized of great practical significance.

关键词：纳米复合材料基础研究光电材料有机/无机杂化材料应用稀土无机固体化学光电功能材料

Discussion of Grading Evaluation Criteria to Study Shale Oil Resources in Zhanhua Sag

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Acta Geologica Sinica(English Edition) 2015年第A1期89卷 12-12页

作者： CHEN Weitao JIANG Zhenxue su siyuan CHEN Lei JI Wenming State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 Unconventional Natural Gas Institute China University of Petroleum Beijing 102249

The huge resources potential of shale oil has been paid more and more attention. The method to correctly evaluate the shale oil potential is the key for resources evaluation. Some foreign scholars argued that the amount of hydrocarbon-bearing per unit organic carbon （S1/TOC） was effective to determine the producible shale oil, known as ＂Oil crossover ＂, while the method has some limitation when used to evaluate the enrichment of shale oil.

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基于时频分析探究点火对煤油发动机爆震的影响

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航空动力学报 2019年第12期34卷 2635-2641页

作者：胡春明赵英博刘娜苏思源王赫天津大学内燃机研究所天津300072 天津大学机械工程学院天津300072

在一台自主研发的活塞式航空煤油发动机上,基于瞬时放热率对爆震燃烧进行时频分析,探究了双火花塞点火策略对航空煤油发动机爆震燃烧的作用效果。试验结果表明,此款发动机在8.2~14.8kHz频带内的放热率过高导致爆震燃烧的发生,推迟同步... 详细信息

在一台自主研发的活塞式航空煤油发动机上,基于瞬时放热率对爆震燃烧进行时频分析,探究了双火花塞点火策略对航空煤油发动机爆震燃烧的作用效果。试验结果表明,此款发动机在8.2~14.8kHz频带内的放热率过高导致爆震燃烧的发生,推迟同步相位点火提前角降低了此频带内的瞬时放热率,从而抑制爆震;增大异步点火相位差能够逐渐降低发动机的爆震指数(KF)和爆震特征频带内的瞬时放热率;提高点火能量会略微增大爆震倾向,但在一定程度上可以提高发动机的动力性。

关键词：爆震控制航空煤油同步相位点火异步相位点火点火能量时频分析

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煤矸石资源化利用现状与进展

煤炭科学技术 2024年第1期52卷 380-390页

作者：竹涛武新娟邢成鞠秋歌苏思源中国矿业大学(北京)化学与环境工程学院北京100083 中国天津生态环境科学研究院国家环境保护恶臭污染控制重点实验室天津300191

在实现“碳达峰与碳中和”目标的背景下,煤炭作为国家能源安全的基石,其绿色开发对我国经济建设和社会发展起到了至关重要的作用。然而,在煤矿开采及分选加工过程中,煤矸石作为煤炭主要伴生副产物,已成为我国急需处理的大宗固废之首。然... 详细信息

在实现“碳达峰与碳中和”目标的背景下,煤炭作为国家能源安全的基石,其绿色开发对我国经济建设和社会发展起到了至关重要的作用。然而,在煤矿开采及分选加工过程中,煤矸石作为煤炭主要伴生副产物,已成为我国急需处理的大宗固废之首。然而,目前煤矸石的综合利用率仍处于较低水平,尚未形成较为规范可行的研究体系。因此,针对煤矿开采与煤矸石堆积所造成的水、大气与土壤环境污染问题,通过煤矸石在生产能源、有价金属回收、建筑材料生产与其他方向的资源化利用的相关研究进展,结合煤矸石在防止重金属污染、土壤修复、防止水土流失等方面的应用,最后提出了煤矸石资源化利用未来的发展方向,根据整体进行规划与资源整合,不仅有大量用于常规目的的煤矸石资源化利用方向,同时还有用于生产高附加值产品的特殊用途,通过两者相结合,实现煤矸石的综合化和资源化利用,为其“减量化、资源化、循环化”发展提供借鉴。总之,煤矸石资源化利用是我国煤炭产业转型升级的重要方向,也是实现绿色可持续发展的必由之路。只有通过不懈的努力和持续的创新,才能更好地解决煤矸石堆积问题,推动煤矸石资源化利用向更加高效、环保、可持续的方向发展,为我国经济社会可持续发展做出更大的贡献。

关键词：煤矸石资源化利用高值化利用生态环境土壤复垦

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活塞式航空煤油发动机冷启动性能试验

航空动力学报 2020年第1期35卷 97-105页

作者：苏思源胡春明刘娜赵英博王旸天津大学内燃机研究所天津300072 天津大学机械工程学院天津300072

针对启喷转速、燃油温度、点火能量等影响因素,在一台排量650mL的单缸试验机上,开展了对航空煤油发动机冷启动性能的试验研究。结果表明:随着启喷转速的提高,启动时间呈现先变短后变长的趋势,启喷转速为1 200r/min时启动时间最短;燃油... 详细信息

针对启喷转速、燃油温度、点火能量等影响因素,在一台排量650mL的单缸试验机上,开展了对航空煤油发动机冷启动性能的试验研究。结果表明:随着启喷转速的提高,启动时间呈现先变短后变长的趋势,启喷转速为1 200r/min时启动时间最短;燃油温度的提高对冷启动性能和燃烧特性都有提升,在本文试验条件下,燃油温度为50℃时即可成功启动;提升点火能量对火核形成和火焰传播都有积极影响,可显著缩短启动时间,但当点火能量增大到75mJ之后,其改善作用已不明显。

关键词：冷启动航空煤油启喷转速燃油温度点火能量

基于环境监测数据的大气重污染应急管控措施效果评估

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环境与发展 2019年第11期31卷 159-159,161页

作者：粟思源景谷县气象局

本文主要针对重污染快速应急响应的需求,基于当地区域空气质量模型,建立了可依据监测事实来进行调整的控制措施效果评价方法。在进行计算的过程中,需要进行设计多种PM参数组以及相应系数,才能得到需要进行控制措施实施效果的范围,此外... 详细信息

本文主要针对重污染快速应急响应的需求,基于当地区域空气质量模型,建立了可依据监测事实来进行调整的控制措施效果评价方法。在进行计算的过程中,需要进行设计多种PM参数组以及相应系数,才能得到需要进行控制措施实施效果的范围,此外还利用建立的方法,对重污染应急提出了相应的管控措施。

关键词：环境监测大气重污染应急管控

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点燃式航空煤油直喷发动机冷起动性能试验

内燃机学报 2022年第1期40卷 54-61页

作者：何永辉胡春明刘娜张振东苏思源天津大学机械工程学院天津300350 天津大学内燃机研究所天津300072

以自主开发的低压空气辅助直喷航空煤油发动机为平台,开展了冷起动燃烧特性试验.基于油、气顺序喷射和同步喷射策略分别探究了油、气喷射间隔时间和喷气截止时刻对燃烧的影响;设计并验证了基于过量空气系数的动态油量控制策略对冷起动... 详细信息

以自主开发的低压空气辅助直喷航空煤油发动机为平台,开展了冷起动燃烧特性试验.基于油、气顺序喷射和同步喷射策略分别探究了油、气喷射间隔时间和喷气截止时刻对燃烧的影响;设计并验证了基于过量空气系数的动态油量控制策略对冷起动过程燃烧稳定性的影响.结果表明:随油、气喷射间隔时间的延长,平均最高燃烧压力先增大后减小,3 ms时具有最好的燃烧性能;喷气截止时刻为压缩上止点前180°CA附近,有利于可燃混合气制备,缸内燃烧稳定;油、气同步喷射策略较油、气顺序喷射策略更有利于提高冷起动过程的燃烧稳定性;应用基于过量空气系数的动态油量控制策略,有利于过量空气系数的平稳过渡,燃烧稳定性和平均指示压力均有所提升.

关键词：航空煤油冷起动喷射策略动态油量控制低压空气辅助直喷