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Tuning the ion-dipole interactions between fluoro and carbonyl(EC)by electrolyte design for stable lithium metal batteries

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Chinese Chemical Letters 2025年第1期36卷 579-584页

作者： Guihuang Fang Ying liu Yangyang feng Ying Pan Hongwei Yang Yongchuan liu Maoxiang Wu Faculty of Metallurgy and Energy Engineering Kunming University of Science and TechnologyKunming 650093China Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

Ethylene carbonate(EC)is the conventional and promising solvent to achieve high energy lithium metal ***,the innate low energy level of lowest unoccupied molecular orbital(LUMO)in EC makes it incompatible with lithium metal,causing uncontrolled lithium growth and low Coulombic efficiency(CE).Herein,we introduced bis(2,2,2-trifluoroethyl)carbonate(TFEC),a carbonate with a strong electron-withdrawing effect(-CF_(3)),which enhances the stability of EC at electrode interface by reducing ion-dipole interactions between Li^(+)and *** the interaction between Li and EC weakens,TFEC and more PF_(6)^(-)anions coordinate with Li^(+),promoting the formation of contact ion pairs(CIPs)and aggregates(AGGs),thereby increasing the inorganic composition within the solid electrolyte ***,the distinct solvated sheath structure favors the decomposition of fluorinated solvents and PF_(6)^(-)anions,forming inorganic-rich electrode-electrolyte interfaces(SEI and CEI),thereby ensuring high stability for both the Li anode and high-voltage ***,when applied in the full-cell Li||LiMn_(0.8)Fe_(0.2)PO_(4),it displays consistent cycling performance,exhibiting minimal capacity decay with a retention rate of 62.5%after800 cycles,substantially surpassing that of cells using base electrolytes(29.8%).

关键词： Lithium-ion batteries LiMn_(0.8)Fe_(0.2)PO_(4) High-voltage Solvation structure Ethylene carbonate Bis(2,2,2-trifluoroethyl)carbonate

Comparison of antioxidant activities between salvianolic acid B and Ginkgo biloba extract(EGb 761)

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Acta Pharmacologica Sinica 2006年第9期27卷 1137-1145页

作者： Chang-suo liu Yong CHENG jin-feng HU Wei ZHANG Nai-hong CHEN Jun-tian ZHANG~2 Department of Neuropharmacology,Institute of Materia Medica,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100050.China Department of Neuropharmacology Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China

Aim:To investigate and compare the antioxidant activities of salvianolic acid B(SalB)and Ginkgo biloba extract(EGb 761)in aqueous solution,rat microsomesand the cellular ***:Superoxide anion(O2~-)was generated usingxanthine/xanthine oxidase system and phenazine methosulate/NADH system,andthe effects of SalB and EGb 761 on the generation of O2~- were achieved by spectro-photometric measurement of the product formed on reduction of nitro *** different methods were used to assess the scavenging effects ofthe extracts on hydroxyl radical(.OH):HPLC method was used for quantitation *** by oxy-radical trapping of 5,5-dimethyl- 1-pyrroline-N-oxide(DMPO)to formDMPO-OH adducts in Fe2+-*** confirm the HPLC data,.OHwas also measured by spectrophotometry using a commercial detection ***-lipid peroxidation effects of the extracts in microsomes of rat brain,liver andkidney induced by ascorbate-NADPH were determined by thiobarbituric acid(TBA)*** protective effects of the extracts on peroxide hydrogen(H2O2)-induced oxidative damage in SH-SY5Y cells were investigated by assessing cellviability assay,the level of lipid peroxidation,and the lactate dehydrogenase(LDH)***:Both SalB and EGb 761 were able to scavenge O2~- ***,inhibit lipid peroxidation of microsomes,and protect SH-SY5Y ceils againstH2O2-induced oxidative ***,the concentration of SalB was far lowerthan that of EGb 761 when a similar effect was ***:The antioxi-dant efficiency of SalB was greater than that of EGb *** results suggestthat SalB,like EGb 761,has promising potential in treating oxidative damage-derived neurodegenerative disorders.

关键词： antioxidant Ginkgo biloba extract 761 free radical salvianolic acid B SH-SY5Y cells

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507例女性生殖道感染性疾病调查结果分析

中国妇幼保健 2006年第2期21卷 262-263页

作者：刘晋凤北京市通州区妇幼保健院 101100

目的：了解性病门诊女性患者生殖道感染性疾病的患病状况。方法：选择507例患者进行滴虫性阴道炎、霉菌性阴道炎、细菌性阴道病、尖锐湿疣、淋病、沙眼衣原体、梅毒、盆腔炎的临床及实验室检查。结果：生殖道一种病原体感染者330例，占6... 详细信息

目的：了解性病门诊女性患者生殖道感染性疾病的患病状况。方法：选择507例患者进行滴虫性阴道炎、霉菌性阴道炎、细菌性阴道病、尖锐湿疣、淋病、沙眼衣原体、梅毒、盆腔炎的临床及实验室检查。结果：生殖道一种病原体感染者330例，占65．09％；两种感染者147例，占28．99％；3种以上感染者30例，占5．92％。以21～40岁患病最多。结论：普及生殖道感染的防治知识，做到早发现、早诊断、早治疗，降低生殖道感染对妇女健康的危害。

关键词：女性生殖道感染多重感染

Clinical effects of phospholipase D2 in attenuating acute pancreatitis

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World Journal of Gastroenterology 2025年第2期31卷 52-60页

作者： jin-Wei Niu Guo-Chao Zhang Wu Ning Hai-Bin liu Hua Yang Chao-feng Li Department of General Surgery China-Japan Friendship HospitalBeijing 100029China

BACKGROUND The objective of the current study was to elucidate the clinical mechanism through which phospholipase D2(PLD2)exerted a regulatory effect on neutrophil migra-tion,thereby alleviating the progression of acute *** To elucidate the clinical mechanism through which PLD2 exerted a regulatory effect on neutrophil migration,thereby alleviating the progression of acute *** The study involved 90 patients diagnosed with acute pancreatitis,admitted to our hospital between March 2020 and November 2022.A retrospective analysis was conducted,categorizing patients based on Ranson score severity into mild(n=25),moderate(n=30),and severe(n=35)*** data was collected for each *** blot analysis assessed PLD2 protein expression in patient ***-time reverse transcription polymerase chain reaction was used to evaluate the mRNA expression of chemokine receptors associated with neutrophil *** levels of inflammatory factors in patients were detected using enzyme-linked immunosorbent *** migration tests were conducted to compare migration of neutrophils across groups and analyze the influence of PLD2 on neutrophil *** Overall data analysis did not find significant differences between patient groups(P>0.05).The expression of PLD2 protein in the severe group was lower than that in the moderate and mild groups(P<0.05).The expression level of PLD2 in the moderate group was also lower than that in the mild group(P<0.05).The severity of acute pancreatitis is negatively correlated with PLD2 expression(r=-0.75,P=0.002).The mRNA levels of C-X-C chemokine receptor type 1,C-X-C chemokine receptor type 2,C-C chemokine receptor type 2,and C-C chemokine receptor type 5 in the severe group are significantly higher than those in the moderate and mild groups(P<0.05),and the expression levels in the moderate group are also higher than those in the mild group(P<0.05).The levels of C-reactive protein,tumo

关键词： Phospholipase D2 Neutrophil migration Acute pancreatitis Retrospective analysis Inflammatory response

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基于优先级策略的模型预测控制性能评估

上海交通大学学报 2015年第11期49卷 1641-1646,1654页

作者：周培杰刘进峰刘苏冯毅萍荣冈浙江大学智能控制与系统研究所杭州310027 阿尔伯塔大学化学工程与材料工程学系

为了解决基于函数加权法进行模型预测控制(MPC)潜在控制性能以及经济性能评估过程中出现的权重缺乏统一度量标准的问题,并考虑到实际操作中所考虑的安全平稳、产品质量、节能减排等目标具有不同的优先级的特点,提出了一种基于优先级策... 详细信息

为了解决基于函数加权法进行模型预测控制(MPC)潜在控制性能以及经济性能评估过程中出现的权重缺乏统一度量标准的问题,并考虑到实际操作中所考虑的安全平稳、产品质量、节能减排等目标具有不同的优先级的特点,提出了一种基于优先级策略的模型预测控制性能评估方法.对集中式MPC控制系统建模,基于线性二次最优控制(LQG)基准,将优先级引入控制目标,提出了优先级LQG基准,给出MPC参考参数,并通过稳态目标计算进行可行性判定,确定可行解空间,从而实现卡边控制,最大化经济效益.案例证明了该方法的有效性以及针对不同控制目标的灵活性.

关键词：模型预测控制双层结构经济性能评估线性二次最优控制优先级

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骨髓间充质干细胞对心肌梗死治疗的研究进展

中国医学科学院学报 2015年第1期37卷 108-112页

作者：刘金峰凌斌昆明医科大学第四附属医院重症医学科昆明650051

骨髓间充质干细胞拥有心肌再生的能力,移植后能够产生心肌样细胞,促进血管生成,分泌多种生长因子与细胞因子。本文总结了心肌修复的分子机制,探讨了心肌梗死后心肌潜在的再生能力,回顾了以往研究中干细胞移植对心肌梗死后心肌修复的治... 详细信息

骨髓间充质干细胞拥有心肌再生的能力,移植后能够产生心肌样细胞,促进血管生成,分泌多种生长因子与细胞因子。本文总结了心肌修复的分子机制,探讨了心肌梗死后心肌潜在的再生能力,回顾了以往研究中干细胞移植对心肌梗死后心肌修复的治疗效果,为制定临床策略提供了新的思路。

关键词：骨髓间充质干细胞心肌梗死干细胞移植

Laser image refractive index sensor based on the combination of a coreless optical fiber and a digital camera

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Optoelectronics Letters 2025年第2期21卷 65-68页

作者： GUO jingzhong LAN feng CHEN Xiang liu Haifeng Xi’an Institute of Space Radio Technology Xi’an 710100China Key Laboratory of Optoelectronic Sensor and Sensing Network Technology College of Electronic Information and Optical EngineeringNankai UniversityTianjin 300350China

As a laser passes through a scattering medium,the light interacts with the irregular reflections within the medium,resulting in light scattering and the formation of *** this paper,an image sensor based on the combination of a coreless optical fiber and a digital camera is proposed for liquid refractive index sensing *** coreless fiber is used as a sensing unit,and the change in the speckle pattern is measured using the digital correlation method to detect the magnitude of the liquid's refractive *** experimental results indicate that the laser image sensing technique is capable of effectively distinguishing liquid samples with refractive indices ranging from 1.332 8 to1.390 8,with a sensing sensitivity of-1.306 ***,the laser image sensing technique,with its advantages of high experimental reproducibility,simple system design,remote over-control,holds great research significance and potential application in laser communication and sensor integration.

关键词： fiber scattering optical

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含水层和土壤的随机特征对水分运动的影响

水科学进展 2005年第3期16卷 313-320页

作者：蔡树英林琳杨金忠刘金峰武汉大学水资源与水电工程科学国家重点实验室湖北武汉430072 石家庄经济学院资源与环境工程系河北石家庄050031

将土壤或含水层的介质参数视为随机分布,建立了饱和非饱和水流运动的随机微分方程,利用随机数值求解方法,得到各种随机参数对水头分布和含水量空间变异性的影响。分析结果表明,随着渗透系数空间变异性和相关尺度的增大,含水层水头分布... 详细信息

将土壤或含水层的介质参数视为随机分布,建立了饱和非饱和水流运动的随机微分方程,利用随机数值求解方法,得到各种随机参数对水头分布和含水量空间变异性的影响。分析结果表明,随着渗透系数空间变异性和相关尺度的增大,含水层水头分布的变异性增大;对于区域内有抽水井分布的问题,在井点附近区域,z向水流速度空间变异性大,而在井点处变异性较小。当采用Gardner Russo模型描述非饱和水分特征时,其非饱和土壤介质参数α的变异性对土壤负压和含水量变异性的影响大于饱和渗透系数,土壤含水量越小,含水量的空间变异性越大。初步讨论了根据随机数值方法研究地下水运动问题的可靠性分析方法。

关键词：含水层土壤随机特征饱和-非饱和水分运动

Chronic oleoylethanolamide treatment attenuates diabetes-induced mice encephalopathyby activating peroxisome proliferator-activatedreceptor alpha in hippocampus

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中国药理学与毒理学杂志 2018年第9期32卷 680-681页

作者： REN Tong liu jin-feng ZHUO Ren-gong XU Lan-xi ZHANG Yi-jiao ZHANG Hui-jun PENG Lu CHEN Cai-xia ZHOU Yu ZHAO Yun LI Wen-jun LI Ying jin Xin YANG Li-chao Medical College Xiamen University Xiamen 361102 China Xiamen Hospital of Traditional Chinese Medicine Xiamen 361102 China Xiamen Medical College Xiamen 361000 China

OBJECTIVE Oleoylethanolamide(OEA) is an endogenous peroxisome proliferatoractivated receptor alpha(PPARα) agonist that acts on the peripheral control of energy *** studies have shown that OEA exerts neuroprotection after cerebral ***,whether OEA affects the outcomes of diabetes-induced encephalopathy(DE) requires further *** The chronic effects of OEA on DE were evaluated in C57BL/6 and PPARαknockout mice,*** cognitive function was assessed with Morris water *** expression of receptor for advanced glycation end products(RAGE) and phosphorylation of Tau in mice hippocampus were determined using Western *** influence of OEA in neuron loss and neuroplasticity were assessed with immunofluorescent staining and Western *** OEA markedly ameliorated performance in the Morris water maze,which was correlated with its capabilities of suppressing glycometabolism and phosphorylation of Tau in the *** offered protection from diabetes-induced impairments in hippocampal ***,the changes in Morris water maze performance and neuron loss could not be observed in PPARα knockout mouse models with OEA *** The ability of OEA to control PPARα signaling can serve as a novel neuroprotective approach for the treatment of diabetes-induced encephalopathy.

关键词： oleoylethanolamide diabeticencephalopathy spatial cognitive function neuroprotection peroxisome proliferator-activated receptor alpha