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A nonradical oxidation process initiated by Ti-peroxo complex showed high specificity toward the degradation of tetracycline antibiotics

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Chinese Chemical Letters 2024年第5期35卷 366-370页

作者： Jian Peng Yue Jiang shuangyu Wu Yanran Cheng Jingyu Liang Yixin Wang Zhuo Li Sijie Lin College of Environmental Science and Engineering Biomedical Multidisciplinary Innovation Research InstituteShanghai East HospitalTongji UniversityShanghai 200092China Key Laboratory of Yangtze River Water Environment Shanghai Institute of Pollution Control and Ecological SecurityTongji UniversityShanghai 200092China

Nonradical oxidation has received wide attention in advanced oxidation processes for environmental *** the relationship between material characteristics and their ability to initiate nonradical oxidation processes is the key to better material design and ***,a novel titanium-based metal-organic framework MIL-12.-Ti/H_(2.O_(2. system was established to show a highly selective degradation efficacy toward tetracycline ***-12.-Ti with the abundance of TiO6 octahedra units was found to effectively activate H_(2.O_(2. under dark conditions by forming an oxidative Ti-peroxo *** presence of the Ti-peroxo complex,confirmed by UV-visible spectrophotometer,fourier transform infrared spectroscopy,and X-ray photoelectron spectroscopy characterizations,showed superior degradation(>95%removal rate)of oxytetracycline hydrochloride(OTC),doxycycline hydrochloride,chlortetracycline hydrochloride,and *** functional theory calculations were performed to assist the elucidation on the mechanism of H_(2.O_(2. activation and antibiotics *** MIL-12.-Ti/H_(2.O_(2. system was highly resistant to halogens and background organics,and could well maintain its original catalytic activity in actual water *** retained the ability to degrade 75%of OTC within ten test *** study provides new insight into the nonradical oxidation process initiated by the unique Ti-peroxo complex of Ti-based MOF.

关键词： Nonradical oxidation Metal-organic frameworks Advanced oxidation process Ti-peroxo complex Antibiotics degradation

Comparative analysis of four edible mushrooms based on HPLC fingerprint and pattein recognition analysis

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未来食品学报(英文) 2024年第1期4卷 105-110页

作者： Xiali Si Xinyu Liu shuangyu Shao Zhiyong Du Pengfei Tu Qingying Zhang Strate Key Laboratory of Natoral oud Biomimenic Drugs and Deportment of Natral Menicines School of Phormocutical ScimncesPekang Uravensin Heath Science CenterBeijing 100191China

A high performance liquid chromatography-ultraviolet(HPLC-UV)fingerprint method for the overall chemical analysis of edible mushrooms was established based on Auricularia heimuer for the first time,and then applied to analyze 60 batches of ***,Auricularia *** cornea*Yu Muer’and TremeUa fuciformis.A total of 9 characteristic peaks of ***.11 characteristic peaks of ***,6 characteristic peaks of ***‘Yu Muer’,and 9 characteristic peaks of I fuciformis were ***,a combinatory analysis,including similarity evaluation,hierarchical cluster analysis and principal component analysis,revealed the chemical consistency and difference between samples from the same and different *** HPLC fingerprint method established in this paper could be used to characterize the components of ***,***,***‘Yu Muer’,and *** and discriminate the 4 edible mushrooms effectively in combination with pattern recognition analysis.

关键词： Edible mushrooms High performance liquid chromatography fingerprint Pattern recognition analysis Auricularia heimuer Auricularia cornea Tremella fiiciformis

Three rare anti-inflammatory sesquiterpene lactones from Magnolia grandiflora

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Chinese Journal of Natural Medicines 2024年第3期22卷 265-272页

作者： XU shuangyu ZHANG Feng TAO Linlan JIANG Yangming HUANG Tao LI Yanan HU Zhanxing YANG Jue HAO Xiaojiang YUAN Chunmao State Key Laboratory of Functions and Applications of Medicinal Plants Guizhou Medical UniversityGuiyang 550014China School of Pharmaceutical Sciences Guizhou Medical UniversityGuiyang 550025China Natural Products Research Center of Guizhou Province Guiyang 550014China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China

Four new sesquiterpene lactones(SLs)(1–4),along with a biosynthetically related SL(5),have been isolated from the leaves of Magnolia *** A(1)is notable as the first C18 homogemarane type SL,featuring a unique 1,7-dioxaspiro[4.4]nonan-6-one *** 2.and 3,representing the first instances of chlorine-substituted gemarane-type SL analogs in natural products,were also *** structures of these isolates were elucidated through a combination of spectroscopic data analysis,electronic circular dichroism calculations,and X-ray single-crystal diffraction *** isolates demonstrated anti-inflammatory activity in lipopolysaccharide-stimulated RAW2.4.7 ***,3–5 showed a significant inhibitory effect on nitric oxide production,with IC50 values ranging from 0.79 to 4.73μmol·L^(−1).Additionally,4 and 5 exhibited moderate cytotoxic activities against three cancer cell lines,with IC50 values between 3.09 and 11.2.μmol·L^(−1).

关键词： Magnolia grandiflora Sesquiterpene lactones Isolation and identification Anti-inflammatory activity

Formation and growth of nanophase iron particles on the surface of Mercury revealed by experimental study

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Acta Geochimica 2024年第4期43卷 774-784页

作者： Ronghua Pang Yang Li Chen Li Pengfei Zhang Zhuang Guo Sizhe Zhao Han Yu Li Wang Chenxi Zhu shuangyu Wang Kairui Tai Qinwei Zhang Yuanyun Wen Rui Li Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyangChina University of Chinese Academy of Sciences BeijingChina Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefeiChina Institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijingChina State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacaoChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunmingChina State Key Laboratory of High Performance Ceramics and Superfi ne Microstructures Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiChina Laboratory for Space Environment and Physical Sciences Harbin Institute of TechnologyHarbinChina Research Center for Planetary Science College of Earth ScienceChengdu University of TechnologyChengduChina Key Laboratory of Planetary Sciences Purple Mountain ObservatoryChinese Academy of SciencesNanjingChina

Space weathering is a primary factor in altering the composition and spectral characteristics of surface materials on airless ***,current research on space weathering focuses mainly on the Moon and certain types of *** particular,the impacts of meteoroids and micrometeoroids,radiation from solar wind/solar flares/cosmic rays,and thermal fatigue due to temperature variations are being *** weathering produces various transformation products such as melted glass,amorphous layers,iron particles,vesicles,and solar wind *** in turn lead to soil maturation,changes in visible and near-infrared reflectance spectra(weakening of characteristic absorption peaks,decreased reflectance,increased near-infrared slope),and alterations in magnetism(related to small iron particles),collectively termed the“lunar model”of space weathering *** to the Moon and asteroids,Mercury has unique spatial environmental characteristics,including more intense meteoroid impacts and solar thermal radiation,as well as a weaker particle radiation environment due to the global distribution of its magnetic ***,the lunar model of space weathering may not apply to *** studies have extensively explored the eff ects of micrometeoroid ***,this work focuses on the eff ects of solar-wind particle radiation in global magnetic-field distribution and on the weathering transformation of surface materials on Mercury under prolonged intense solar *** the utilization of highvalence state,heavy ion implantation,and vacuum heating simulation experiments,this paper primarily investigates the weathering transformation characteristics of the major mineral components such as anorthite,pyroxene,and olivine on Mercury’s surface and compares them to the weathering transformation model of the *** experimental results indicate that ion implantation at room temperature is insufficient to generate np-Fe^(0)directly but

关键词： Mercury Space weathering Np-Fe^(0) Solar thermal radiation Solar wind

珠三角城市群建设用地转型指数测度与格局演变

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经济地理 2024年第4期44卷 91-99页

作者：刘宝涛蒋双玉吉林农业大学经济管理学院吉林长春130118

文章基于土地利用系统“结构—功能—效益”要素嵌套人地耦合“生产—生活—生态”属性构建了建设用地转型理论框架和测度指标体系,并运用组合赋权模型、TOPSIS模型及空间差异测度方法对2.04—2.2.年珠三角城市群建设用地转型进行了综... 详细信息

文章基于土地利用系统“结构—功能—效益”要素嵌套人地耦合“生产—生活—生态”属性构建了建设用地转型理论框架和测度指标体系,并运用组合赋权模型、TOPSIS模型及空间差异测度方法对2.04—2.2.年珠三角城市群建设用地转型进行了综合测度,探究了其时空格局演变特征和成因。研究发现:(1)研究期内珠三角城市群建设用地转型呈现先波动上升后波动下降、增减交替、趋于平稳的两阶段波动演化趋势,空间差异化程度呈缩小态势。(2.建设用地结构转型呈现以“广深莞”三市为轴心向周边地区递减的空间分布格局,空间差异化程度扩大,空间极化效应明显且具有较强的突变性和波动性。(3)建设用地功能转型呈现中间高外围低的“核心—边缘”空间分布格局,空间差异化程度有所缩小但扩散效应并不明显,空间均衡协调发展水平有待提升。(4)建设用地效益转型呈现以深广为双核心的梯度递减空间分布格局,空间差异化程度扩大,空间均衡协调发展水平严重失衡。同时,建设用地转型框架体系强调土地利用系统与以人类活动为主体的生产、生活、生态属性的相互作用关系,从土地利用系统视角实现了显性形态转型和隐性形态转型的系统集成。

关键词：土地利用系统建设用地转型结构—功能—效益生产—生活—生态产业结构升级珠三角城市群

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湿法炼铜浸出液萃取分离硫酸机理

化工进展 2024年第6期43卷 3410-3419页

作者：马海飞廖亚龙武敏贾小宝杨双宇昆明理工大学冶金与能源工程学院云南昆明650093

针对湿法炼铜浸出液中游离硫酸含量高的问题,提取铜前需进行中和处理,不仅碱性试剂消耗量大、作业成本高,还会造成金属离子损失的问题。本文提出采用溶剂萃取回收硫酸的工艺,研究了三辛胺(TOA)-正辛醇体系选择性萃取分离硫酸过程的传质... 详细信息

针对湿法炼铜浸出液中游离硫酸含量高的问题,提取铜前需进行中和处理,不仅碱性试剂消耗量大、作业成本高,还会造成金属离子损失的问题。本文提出采用溶剂萃取回收硫酸的工艺,研究了三辛胺(TOA)-正辛醇体系选择性萃取分离硫酸过程的传质机理。结果表明,TOA萃取硫酸的过程中会发生水化作用而产生第三相,加入正辛醇后,因形成疏水性络合体(R_(3)NH)_(2.(A)_(0.3)(H_(2.O)_(1.7)SO_(4),避免了第三相的形成;在有机相构成为45%TOA+10%正辛醇+45%2.0#溶剂油、相比O∶A(有机相与水相之比)为1∶1、温度2.℃、震荡速度2.0r/min、反应时间10min的条件下,硫酸单级萃取率达90.2.%,三级逆流萃取率达99%以上,杂质离子Cu^(2.)、Fe^(2.)、Zn^(2.)的萃取率分别小于2.7%、2.2.、2.3%;萃取过程为放热反应,通过计算得萃取反应的ΔH为-14.9kJ/mol。

关键词：萃取分离综合回收湿法炼铜三辛胺

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基于区间理论的油田综合能源系统优化规划

电力自动化设备 2024年第3期44卷 31-39页

作者：王艳松罗双禹苗人杰倪承波衣京波中国石油大学(华东)新能源学院山东青岛266580 国网临沂供电公司山东临沂276000 胜利石油管理局山东东营257087 胜利石油管理局胜利发电厂山东东营257087

针对油田的能源结构和用能负荷的特征,构建了油田综合能源系统架构;考虑可再生能源出力的不确定性和油田多元负荷用能的随机性,建立了光伏、光热出力的区间模型,热负荷区间模型和基于价格型响应的电负荷区间模型;通过分析设备投资成本... 详细信息

针对油田的能源结构和用能负荷的特征,构建了油田综合能源系统架构;考虑可再生能源出力的不确定性和油田多元负荷用能的随机性,建立了光伏、光热出力的区间模型,热负荷区间模型和基于价格型响应的电负荷区间模型;通过分析设备投资成本的时间价值和区域碳中和途径,建立一种计及源荷不确定性的综合能源系统规划模型,并结合仿射算法和区间序关系,将不确定性优化问题转化为确定性的多目标优化问题进行求解。算例分析表明,油田综合能源系统架构符合油田能源禀赋和负荷实际耦合情况,设备配置方案投资回收年限短,不确定性权重系数越高,投资越大,年净收益区间越大,结果验证了规划方法的有效性。与传统鲁棒凸规划优化方法相比,所提方法为决策者提供了满足区间约束的解集,避免了规划方案的保守性。

关键词：综合能源系统仿射算法不确定性优化规划多目标区间优化模型

雷蒙·格诺的《蓝花》对“吾丧我”的哲学观照

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赤峰学院学报（哲学社会科学版） 2024年第8期45卷 43-47页

作者：严霜钰安徽师范大学外国语学院安徽芜湖241000

《蓝花》是法国当代作家雷蒙·格诺代表作之一,封页上“庄周梦蝶”的典故折射了与老庄哲学的联系。格诺本人对东方哲学尤其是中国道家智慧表现出特别的兴趣,并从中撷取了精神营养和写作灵感,于是在《蓝花》中,性情殊异却相互成梦的两位... 详细信息

《蓝花》是法国当代作家雷蒙·格诺代表作之一,封页上“庄周梦蝶”的典故折射了与老庄哲学的联系。格诺本人对东方哲学尤其是中国道家智慧表现出特别的兴趣,并从中撷取了精神营养和写作灵感,于是在《蓝花》中,性情殊异却相互成梦的两位主角身上仿佛闪现道家“吾丧我”的哲学。格诺借其中一位主角外化其对“智者”的理解,主张打破自我中心的立场和对象性关系,追求物化之境,提倡和谐共处的自然辩证观。格诺转向中国道家智慧汲取灵感,实际是西方文化采东方文明之长的缩影,为东西方异质文化对话和互鉴提供了启示。

关键词：《蓝花》雷蒙·格诺老庄哲学 “吾丧我”

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传统村落旅游发展中的居民诉求及其影响因素研究——以恩施州二官寨村为例

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四川师范大学学报（社会科学版） 2024年第1期51卷 113-121,M0009,M0010页

作者：谢双玉聂黎莎金昳欣华中师范大学城市与环境科学学院

以二官寨村为例,运用内容分析法、扎根理论分析法探究传统村落旅游发展中的居民诉求及其影响因素。研究表明,在传统村落旅游发展中,居民诉求主要面向当地政府、其他居民、外来投资者和游客提出;诉求内容主要包括维护社会关系、保护地方... 详细信息

以二官寨村为例,运用内容分析法、扎根理论分析法探究传统村落旅游发展中的居民诉求及其影响因素。研究表明,在传统村落旅游发展中,居民诉求主要面向当地政府、其他居民、外来投资者和游客提出;诉求内容主要包括维护社会关系、保护地方形象、满足个人需要、提升社区环境;传统村落居民诉求的产生受到个人偏好因素的内在驱动、人地关系因素的情感推动、人际关系因素和环境感知因素的现实推动,是环境感知不满足、人际关系失调的现实与个人美好追求、人地情感表达之间矛盾冲突与协调作用的结果。

关键词：传统村落旅游发展居民诉求恩施州二官寨