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The protective effect of cyclodextrin on the color quality and stability of Cabernet Sauvignon red wine

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Journal of Integrative Agriculture 2024年第1期23卷 310-323页

作者： Caiyun liu Lulu Wu shuyue Fan Yongsheng Tao Yunkui Li College of Enology Northwest A&F UniversityYangling 712100China Ningxia Helan Mountain’s East Foothill Wine Experiment and Demonstration Station of Northwest A&F University Minning 750104China

The impact of cyclodextrins(CDs)on wine quality and stability remains largely *** study systematically assessed the protective effect of the post-fermentation addition of CDs on color stability of red wine from the viewpoints of color characteristics,copigmentation and phenolic *** grey relational analysis(GRA)and principal component analysis(PCA)methods were employed to dissect the key effective determinants related to color *** addition of CDs induced a significant hyperchromic effect of 8.19-25.40%,a significant bathochromic effect and an enhancement of the color ***,the evolution of anthocyanin forms and the content of monomeric anthocyanins revealed that β-CD is a superior favorable cofactor during wine aging,but for long-term aging,2-HP-β-CD and 2-HP-γ-CD are more beneficial in promoting the formation of polymerized anthocyanins and color *** work provides an important reference for the use of CDs to enhance the color quality and stability of red wines.

关键词： cyclodextrins color properties copigmentation Helan Mountain’s East Foothill red wine aging

Analytical and Experimental Research on Wave Scattering by an Open-Type Rectangular Breakwater with Horizontal Perforated Plates

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Journal of Ocean University of China 2024年第5期23卷 1185-1201页

作者： HE shuyue liu Yong LI Huajun Fisheries College Ocean University of China Shandong Province Key Laboratory of Ocean Engineering Ocean University of China

This study proposes a novel open-type rectangular breakwater combined with horizontal perforated plates on both sides to enhance the sheltering effect of the rectangular box-type breakwaters against longer waves. The hydrodynamic characteristics of this breakwater are analyzed through analytical potential solutions and experimental tests. The quadratic pressure drop conditions are exerted on the horizontal perforated plates to facilitate assessing the effect of wave height on the dissipated wave energy of breakwater through the analytical solution. The hydrodynamic quantities of the breakwater, including the reflection, transmission, and energyloss coefficients, together with vertical and horizontal wave forces, are calculated using the velocity potential decomposition method as well as an iterative algorithm. Furthermore, the reflection and transmission coefficients of the breakwater are measured by conducting experimental tests at various wave periods, wave heights, and both porosities and widths of the horizontal perforated plates. The analytical predicted results demonstrate good agreement with the iterative boundary element method solution and measured data. The influences of variable incident waves and structure parameters on the hydrodynamic characteristics of the breakwater are investigated through further calculations based on analytical solutions. Results indicate that horizontal perforated plates placed on the water surface for both sides of the rectangular breakwater can enhance the wave dissipation ability of the breakwater while effectively decreasing the transmission and reflection coefficients.

关键词： analytical solution experimental test horizontal perforated plates hydrodynamic characteristics rectangular breakwater

Spatial Heterogeneity and Scale Effect of Influencing Factors of Crime Rate Based on MGWR

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Journal of Landscape Research 2022年第6期14卷 53-56,60页

作者： WANG Zhenbao liu shuyue GONG Xin School of Architecture and Art Hebei University of EngineeringHandanHebei 056038China

It is of great significance to analyze the factors influencing crime rate and their effect scale for reducing crime rate and improving the quality of living environment. By using MGWR model, combined with the data of crime rate in Chicago, the spatial scale differences of crime rate in Chicago were studied,and the causes of spatial scale differences were analyzed. By comparing R2 and AICC in the regression results of MGWR, GWR and OLS models, it is found that the fitting effect of MGWR model was *** results show that among the influencing factors ofcrime rate in Chicago, disadvantaged group factor had a small scale and strong sensitivity to crime rate, and had a great influence on local crime rate. Latino immigrant factor and employment convenience factor had a large impact scale and weak sensitivity, and had a small impact on local crime rate. It is suggested that Chicago government should take targeted measures to influence factors in different regions and scales.

关键词： GWR MGWR Murder rate Chicago Spatial heterogeneity

温灸配合“清消法”治疗肉芽肿性乳腺炎临床研究

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辽宁中医药大学学报 2024年第2期26卷 210-213页

作者：郑懿史有阳郑金洲宋晓耘陈力新杨剑锋高阳刘舒月刘胜周细秋上海中医药大学附属龙华医院浦东分院上海200030

目的观察外用温灸法配合顾氏外科“清消法”治疗肉芽肿性乳腺炎的临床疗效。方法临床收集90例符合肉芽肿性乳腺炎诊断标准的患者,每组各45例,实验组使用温灸配合“清消法”治疗,对照组单纯使用“清消法”治疗,疗程14 d,随访1个月,观察... 详细信息

目的观察外用温灸法配合顾氏外科“清消法”治疗肉芽肿性乳腺炎的临床疗效。方法临床收集90例符合肉芽肿性乳腺炎诊断标准的患者,每组各45例,实验组使用温灸配合“清消法”治疗,对照组单纯使用“清消法”治疗,疗程14 d,随访1个月,观察两组患者创面愈合情况及中医局部证候评分和肿瘤坏死因子-α(tumor necrosis factor,TNF-α)、白细胞介素-6(interleukin-6,IL-6)的差异情况。结果在14 d及30 d的观察节点中,实验组和对照组患者的创面面积较入组前均有明显缩小,差异有统计学意义(P0.05),但已整体呈现出明显的下降趋势。在治疗过程中,两组患者均无明显不良反应发生,对该疗法的耐受度好。结论使用温灸法配合顾氏外科“清消法”能缩短患乳创面愈合时间,且该疗法安全、操作简单,值得在临床上进行推广。

关键词：肉芽肿性乳腺炎温灸法顾氏外科“清消法” 煨脓长肉

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静脉产业园区生态环境效益评估指标体系的构建与应用——以上海老港固废综合利用基地为例

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环境卫生工程 2022年第4期30卷 89-95页

作者：刘抒悦上海环境集团股份有限公司上海200336

在国家生态文明建设的背景下,生态环境效益评估是静脉产业园区管理和发展决策制定的重要依据。从评价指标体系在静脉产业园生态化建设和改造中的必要性出发,分析国内外静脉产业园生态环境评价方法及指标体系,对全生命周期评价、多准则... 详细信息

在国家生态文明建设的背景下,生态环境效益评估是静脉产业园区管理和发展决策制定的重要依据。从评价指标体系在静脉产业园生态化建设和改造中的必要性出发,分析国内外静脉产业园生态环境评价方法及指标体系,对全生命周期评价、多准则分析法、环境绩效指标法等评价方法进行阐述。并以老港固废综合利用基地(老港静脉产业园)为例,设计出一套针对静脉产业园的生态环境效益评价指标体系,运用层次分析法(AHP)分析各个指标的权重,得出老港静脉产业园生态环境效益评价的重点,可全面反映其环境质量情况及生态化建设情况。

关键词：老港静脉产业园生态环境效益评价指标体系层次分析法

“双碳”背景下可回收物回收模式现状调查及政策建议——以上海市黄浦区为例

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环境卫生工程 2023年第4期31卷 101-106页

作者：刘抒悦上海环境集团股份有限公司上海200336

“双碳”目标是我国构建人类命运共同体、实现可持续发展的重大战略决策,构建绿色低碳循环发展经济体系、加强再生资源回收利用是实现“双碳”目标的关键一环。通过采取3种研究方法 (实地走访、定性归纳、定量方法),对上海市黄浦区可回... 详细信息

“双碳”目标是我国构建人类命运共同体、实现可持续发展的重大战略决策,构建绿色低碳循环发展经济体系、加强再生资源回收利用是实现“双碳”目标的关键一环。通过采取3种研究方法 (实地走访、定性归纳、定量方法),对上海市黄浦区可回收物回收模式进行研究。结果显示:黄浦区已建立符合区域情况的“可回收物”体系,实现可回收物“点、站”基本覆盖,但也存在中心城区场地制约、邻避效应显著、居民分类意识不强、品类形态差异、回收企业积极性不足等一些问题,影响全程分类体系建设。基于黄浦区可回收物回收模式现状,系统性地提出加强居民精细分类宣传、合理规划设施建设、建立全程数字化监管体系、加强品类差异化补贴等建议。

关键词：上海市黄浦区可回收物回收模式

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Effective and selective electrocatalytic nitrate reduction to ammonia on urchin-like and defect-enriched titanium oxide microparticles

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Chinese Chemical Letters 2023年第12期34卷 269-274页

作者： Mue Tang Qiuwen Tong Yiming Li Ruchun Jiang Li Shi Fei Shen Yali Wei Zixun liu shuyue liu jun Zhang Guangming jiang College of Metallurgy and Materials Engineering Chongqing Key Laboratory of Nano/Micro Composites and DevicesChongqing University of Science and TechnologyChongqing 401331China Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Technology and Business University.Chongqing 400067Chin Sichuan Academy of Environmental Sciences Chengdu 610041China

This work reported a facile approach to surface oxygen vacancy(O_(v))-enriched urchin-like TiO_(2) microparticles(U-TiO_(2)),which were highly effective and durable in catalyzing selective nitrate reduction to ammonia(NOgRR),Specifically,the U-TiO_(2)delivered a mass activity of 1.15 min^(-1)mg^(-1)calyst.a low yield of toxic NO_(2)^(-)-N intermediate(≤0.4mg/L)and an exceptional high NH_(3)^(-)-N selectivity of 98.1%in treating 22.5 mg/L of NO_(3)^(-)-N under a potential of-0.60V ***,outperforming most of the reported oxidebased *** comparing the performance of U-TiO_(2)with that of the solid amorphous TiO_(2) counterpart(A-TiO_(2))that had close particle size but more O_(v) on surfaces,we identified that the O_(v) was the reactive sites,but rather than its content,the NO_(3)RR kinetics were primarily limited by the electron and mass transfer at U-TiO_(2)/water ***,the superior performance of U-TiO_(2)to A-TiO_(2)could be ascribed to the hierarchical urchin-like structure in U-TiO_(2).The in-situ DEMS test revealed that the NO_(3)RR on U-TiO_(2)followed a pathway of ^(*)NO_(3)^(-)→^(*)NO_(2)^(-)→^(*)NO→^(*)N→^(*)NH^(-)→^(*)NH_(2)→^(*)NH_(3).We also demonstrated that the U-TiO_(2) could keep its robust performance under a wide NO_(3)^(-)-N concentration range and in the presence of some co-existing ions(such as Ca^(2+),Cl^(-),Mg^(2+)).However,the presence of humic acid and CO_(3)^(2-) in water slowed down the NO_(3)RR on U-TiO_(2).This work provides a more fundamental insight into the O_(v)-driven NO_(3)RR process on TiO_(2),which should benefit for the development of eficient TiO_(2)-based catalvsts.

关键词： Nitrate pollution TiO_(2) Electrocatalytic nitrate reduction Oxygen vacancy Ammonia selectivity

基于最短距离法的机场辐射范围研究--以陕西省为例

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科技和产业 2023年第6期23卷 174-179页

作者：刘姝玥中国民用航空飞行学院机场学院四川广汉618307

针对最短距离法在选择机场时没有考虑到机场性质、忽略掉了机场所在地区的地域经济水平等一系列因素,导致计算结果十分不合理的问题,利用模糊理论对最短距离法进行优化,阐述机场辐射范围的界定方法,建立机场辐射范围计算模型。以陕西省... 详细信息

针对最短距离法在选择机场时没有考虑到机场性质、忽略掉了机场所在地区的地域经济水平等一系列因素,导致计算结果十分不合理的问题,利用模糊理论对最短距离法进行优化,阐述机场辐射范围的界定方法,建立机场辐射范围计算模型。以陕西省为例进行实证研究,对陕西省的4个民用机场辐射范围进行计算。最后对机场建设提出建议。

关键词：最短距离法模糊理论隶属度

大渡河成矿带黄金坪金矿床黄铁矿标型特征及矿床成因探讨

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山西冶金 2023年第5期46卷 35-36,73页

作者：刘舒月成都理工大学四川成都610059

以大渡河金成矿带中的黄金坪金矿床作为研究对象,从黄铁矿的形态特征、主量元素和热电系数等方面进行矿物学研究,探讨该矿床中的黄铁矿标型特征及矿床成因。结果显示:该矿床中黄铁矿存在两个阶段,早期黄铁矿晶型主要呈立方体和五角十二... 详细信息

以大渡河金成矿带中的黄金坪金矿床作为研究对象,从黄铁矿的形态特征、主量元素和热电系数等方面进行矿物学研究,探讨该矿床中的黄铁矿标型特征及矿床成因。结果显示:该矿床中黄铁矿存在两个阶段,早期黄铁矿晶型主要呈立方体和五角十二面体,颗粒较大,晚期黄铁矿则呈立方体,颗粒较小;黄铁矿中主量元素表现出铁亏损特征,其m(S)/m(Fe)比值大于2;黄铁矿热电导型均为N型,热电系数为-390~-164μV/℃,成矿温度为173~297℃,平均温度为261℃。综合分析认为,黄金坪金矿床为与岩浆热液有关的中低温热液矿床。

关键词：黄金坪金矿床黄铁矿标型特征