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Compounds consisting of coplanar π-conjugated B_(3)O_(6)-typed structures:An emerging source of ultraviolet nonlinear optical materials

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Chinese Journal of Structural Chemistry 2023年第1期42卷 64-73页

作者： lingli wu Huixin Fan Chensheng Lin Min Luo Key Laboratory of Optoelectronic Materials Chemistry and Physics Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou350002China University of the Chinese Academy of Sciences Beijing100049China

Nonlinear optical(NLO)materials as a crucial part of the laser science have attracted increasing attention from researchers because of their wide applications in information storages,modern science and technologies,et *** on the anionic group theory,theπ-conjugated 6-membered rings(6-MRs),B_(3)O_(6)-typed structures have key contributions to the superior optical properties ofβ-Ba_(2)B_(2)O_(4)(β-BBO).In recent years,the organic coplanarπ-conjugated B_(3)O_(6)-typed structures have caught researchers'attention due to similar configurations to the(B_(3)O_(6))groups,which are the potential sources for expending the(B_(3)O_(6))groups with outstanding optical *** to know,researchers have obtained many ultraviolet(UV)NLO crystals with excellent properties withπ-conju-gated B_(3)O_(6)-typed ***,these B_(3)O_(6)-typed groups could be divided into different categories according to the atoms constituting the 6-MRs:(H_(x)C_(3)N_(3)O_(3))^(x-3)(x=0-3)(cyanurate ion),(H_(x)C_(4)N_(2)O_(3))^(x-4)(x=2,3)(barbi-turate ion),(C_(3)H_(7)N_(6))^(+)(melamine ion),(C_(5)H_(6)ON)^(+)(4-hydroxypyridine cation),and(C_(4)H_(6)N_(3))^(+)(2-amino-pyrimidinium cation).In this review,we introduced the research advances of NLO materials withπ-conjugated B_(3)O_(6)-typed groups,and summarized the crystal structures,synthetic methods,optical performances,as well as the relationships between structures and *** work provided a clear perspective for understanding the coplanarπ-conjugated B_(3)O_(6)-typed groups with their optical functional properties and promote the searches to develop potential NLO functional crystals.

关键词： NLO crystals B_(3)O_(6)-typed structures π-conjugated Anionic group theory

利拉鲁肽联合德谷胰岛素对老年肥胖T2DM患者血管内皮功能和胰岛功能的影响

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临床合理用药 2025年第1期18卷 29-32页

作者：郑弟蓉吴灵莉武夷山市立医院药剂科福建省武夷山市354300

目的观察利拉鲁肽联合德谷胰岛素对老年肥胖2型糖尿病(T2DM)患者血管内皮功能和胰岛功能的影响。方法选择2021年1月—2023年12月武夷山市立医院接收的老年肥胖T2DM患者153例,采用随机数字表法分为观察组76例和对照组77例。对照组单用德... 详细信息

目的观察利拉鲁肽联合德谷胰岛素对老年肥胖2型糖尿病(T2DM)患者血管内皮功能和胰岛功能的影响。方法选择2021年1月—2023年12月武夷山市立医院接收的老年肥胖T2DM患者153例,采用随机数字表法分为观察组76例和对照组77例。对照组单用德谷胰岛素治疗,观察组在对照组的基础上联合利拉鲁肽治疗。治疗12周后,比较2组血糖控制效果,治疗前后肥胖指标[体质指数(BMI)、腹围、臀围]、血管内皮功能指标[一氧化氮(NO)、内皮素-1(ET-1)、血管内皮生长因子(VEGF)]、炎性因子[白介素-6(IL-6)、白介素-10(IL-10)、肿瘤坏死因子-α(TNF-α)]、胰岛功能指标[空腹胰岛素(FINS)、空腹C肽(FCP)、胰岛素抵抗指数(HOMA-IR)]及不良反应。结果观察组血糖控制总有效率高于对照组(98.68%vs.89.61%,χ^(2)=4.167,P=0.041)。治疗12周后,2组BMI及ET-1、VEGF、IL-6、TNF-α、FINS、FCP水平和HOMA-IR降低,腹围、臀围减小,NO、IL-10水平升高,且观察组变化幅度大于对照组(P<0.01)。观察组不良反应总发生率与对照组比较差异无统计学意义(13.16%vs.15.58%,χ^(2)=0.182,P=0.668)。结论利拉鲁肽联合德谷胰岛素治疗老年肥胖T2DM患者,能显著提高血糖控制效果,降低患者体质量,减轻血管内皮损伤,调节炎性因子表达,改善胰岛功能,且未发生严重不良反应,安全性高。

关键词： 2型糖尿病肥胖老年利拉鲁肽德谷胰岛素血管内皮功能胰岛功能炎性因子

Impacts of silver nanoparticles on enzymatic activities,nitrifying bacteria,and nitrogen transformation in soil amended with ammonium and nitrate

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Pedosphere 2021年第6期31卷 934-943页

作者： Xiaohong LIU Juan WANG lingli wu Li ZHANG Youbin SI Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention School of Resources and EnvironmentAnhui Agricultural UniversityHefei(China)

Silver nanoparticles(AgNPs)are effective antimicrobial compounds that are used in a myriad of *** microorganisms play crucial roles in nitrogen cycling,but there is a lack of comprehensive understanding of the effects of Ag NPs on enzymatic activity in the nitrogen cycle,nitrifying bacteria,and nitrogen transformation in ***,enzyme activities were determined following the addition of different forms of nitrogen,ammonium nitrogen((NH_(4))_(2)SO_(4)),nitrate nitrogen(KNO_(3)),and amide nitrogen(urea,CO(NH_(2))_(2))at 200 mg N kg^(-1),into the soil amended with AgNPs at 0,10,50,and 100 mg kg^(-1).After 7 d of incubation with 10 mg kg^(-1) Ag NPs,the activities of urease,nitrite reductase(NiR),nitrate reductase(NaR),and hydroxylamine reductase(HyR)were reduced by 12.5%,25.0%,12.2%,and 24.2%,*** particular note,more than 53.5%,61.7%,and 34.7% of Na R,NiR,and HyR activities,respectively,were inhibited at 100 mg kg^(-1) Ag *** abundance(most probable number)of ammonia-and nitrite-oxidizing bacteria(AOB and NOB,respectively)was measured using real-time quantitative polymerase chain reaction(qPCR)and the Cochran *** abundance of AOB and NOB decreased when Ag NPs were present in the *** NH_(4)NO_(3) amendment increased copy numbers of bacterial and archaeal amo A nitrification functional genes,by 38.3% and 12.4%,respectively,but AgNPs at 50 mg kg^(-1) decreased these values by 70% and 56.4%,*** results of ^(15)N enrichment(atom% excess)of NH_(4)^(+) and NO_(3)^(-) experiments illustrated the influence of AgNPs on soil nitrogen *** to the ^(15)N atom% excess detected,the conversion of ^(15)N-labeled NH_(4)^(+) to NO_(3)^(-) was significantly inhibited by the different levels of Ag NPs in *** reduced gross nitrification rate further confirmed this ***,this study revealed considerable evidence that AgNPs inhibited nitrogen cycle enzyme activity,the number of nitrifying bacteria,t

关键词： amoA gross N transformation nitrification gene nitrogen cycling nitrogen isotope fractionation soil enzyme activities

Covalent organic framework monolayer:Accurate syntheses and advanced application

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Nano Research 2024年第7期17卷 6603-6618页

作者： Guangyuan Feng Xiaojuan Li Miao Zhang Jiabi Xu Zhiping Liu lingli wu Shengbin Lei Key Laboratory of Organic Integrated Circuit Ministry of Education and Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistrySchool of Science and Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin UniversityTianjin 300072China Medical College Northwest Minzu UniversityLanzhou 730000China School of Chemistry and Chemical Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

Covalent organic framework(COF)monolayers,with atomically thin,ordered networks,and rich functionality,are widely studied due to their unusual structure/property ***,synthesizing COF monolayer has remained an unmet challenge due to the difficulty of controlling reactions at the monolayer limit with large-scale *** identification and development of new reactions and polymerization conditions are critical for the further advancement of COF monolayer ***,as one-molecule-thick a freestanding films,COF monolayer offers an ideal material *** advanced applications of COF monolayer have been explored in recent *** review provides an overview of the current state of precise synthetic strategies for COF monolayer,highlighting the advantages and limitations of different synthetic approaches and key challenges related to enhancing quality,and emphasizing the unique benefits of COF monolayer as both an ideal model system and for advanced applications.

关键词： covalent organic frameworks monolayer accurate syntheses advanced application

老化时间对聚乙烯导线火蔓延及滴落行为的影响研究

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清华大学学报（自然科学版） 2024年第12期64卷 2177-2184页

作者：张英吴凌立张波武汉理工大学安全科学与应急管理学院武汉430070 武汉理工大学资源与环境工程学院武汉430070

为研究老化聚乙烯导线火灾特性的影响规律,该文开展了不同老化时间下聚乙烯导线火蔓延特性实验研究,探讨不同老化时间对聚乙烯导线火蔓延行为的影响规律,包括火蔓延行为和滴落行为。实验结果表明,火焰高度、宽度和火蔓延速度随着老化时... 详细信息

为研究老化聚乙烯导线火灾特性的影响规律,该文开展了不同老化时间下聚乙烯导线火蔓延特性实验研究,探讨不同老化时间对聚乙烯导线火蔓延行为的影响规律,包括火蔓延行为和滴落行为。实验结果表明,火焰高度、宽度和火蔓延速度随着老化时间的增加而降低,聚乙烯导线熔融滴落物的滴落频率和滴落质量随着老化时间的增加而降低,单液滴的质量随着老化时间的增加而增加。结合实验结果和理论分析得到了老化对聚乙烯导线火蔓延行为特性的影响规律。

关键词：老化断裂伸长率聚乙烯导线火蔓延行为滴落行为

Optimization of Fermentation Process for Hyaluronic Acid Production by Streptococcus zooepidemicus

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Agricultural Biotechnology 2015年第5期4卷 56-60页

作者： Jing YUAN Zhiping ZHAO Baoqu WANG lingli wu Li ZHANG School of Chemistry and Pharmaceutical Engineering Sichuan University of Science & Engineering Institute of Pharmaceutical Engineering Technology and Application Sichuan University of Science & Engineering

Hyaluronic acid （HA） is a high molecular weight glycosaminoglycan consisting of alternating D-glucuronic acid and N-acetylglueasamine and plays ex- tremely important roles in many biological processes. In this study, we optimized fermentation process for the production of HA by Streptococcus zooepidemicus ATCC35246, including fermentation broth composition and various fermentation parameters. The experimental results showed that the optimal fermentation broth composition was： glucose 45 g/L, yeast extract 10 g/L, tryptone 12 g/L, KH2PO4 2 g/L, K2HPO4 . 3H20 2 g/L, MgSO4 · 7H2O 2 g/L, and （NH4 ）2SO4 0.4 g/L. The optimal parameters involved in fermentation was： liquid volume 20%, pH 6. 0, rotation speed 180 r/min, fermentation temperature 35 ℃, fermentation duration 18 h, CTAB concentration 25 mg/L. Under the optimized conditions, the yield of HA was 0. 305 g/L, which was dramatically improved by 43.87% compared to that of 0. 212 g/L before optimization.

关键词： Streptococcus zooepidemicus Hyaluronic acid Fermentation process Optimization

中美媒体有关“一带一路”倡议报道中的介入资源分析

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外语研究 2018年第6期35卷 1-7,112页

作者：辛斌吴玲莉南京师范大学外国语学院江苏南京210097

本文分析了中美媒体有关"一带一路"倡议的报道中介入资源的分布情况,发现中美都更多地调用了"对话性扩展"资源,表明双方都愿意在表达自己立场态度的同时,愿意为不同的观点预留对话空间。在"对话性扩展"资源中,两国媒体都倾向于使用情态... 详细信息

本文分析了中美媒体有关"一带一路"倡议的报道中介入资源的分布情况,发现中美都更多地调用了"对话性扩展"资源,表明双方都愿意在表达自己立场态度的同时,愿意为不同的观点预留对话空间。在"对话性扩展"资源中,两国媒体都倾向于使用情态动词,中方媒体主要表达对"一带一路"未来的良好愿望,而美方媒体则不看好其发展。在"归属"资源中,中方更多引用领导人的话语,而美方则更多引用普通人的话语,其目的都是限制对话性。在"对话性压缩"资源中,中方媒体往往直接否定反对"一带一路"倡议的观点,而美方媒体则更倾向于使用"反预期"资源质疑"一带一路"倡议。至于"宣告"资源,中方媒体更多使用"宣布"资源直接介入命题,而美方则经常调用"认可"资源来认同某些权威观点,并以此降低对话性。

关键词：一带一路中美媒体介入资源

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大推力低矮式直线超声电机的研究

压电与声光 2010年第4期32卷 622-624,628页

作者：吴玲俐李朝东上海大学直线驱动技术研究室上海200072

提出了一种定子高度尺寸不足20 cm的直线型微型压电超声电机,并通过原理样机的实验研究证实其合理性和可行性。该电机体积小,输出功率较大,最大速度可达150 mm/s,输出推力为3 N,能满足一般的驱动和控制要求,适用于要求结构紧凑、成本相... 详细信息

提出了一种定子高度尺寸不足20 cm的直线型微型压电超声电机,并通过原理样机的实验研究证实其合理性和可行性。该电机体积小,输出功率较大,最大速度可达150 mm/s,输出推力为3 N,能满足一般的驱动和控制要求,适用于要求结构紧凑、成本相对较低的应用场合。

关键词：直线超声电机压电微型

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基于网络平台市场的销售商促销竞争策略研究

管理工程学报 2022年第1期36卷 217-227页

作者：姜璇贾朕吴伶俐中南财经政法大学工商管理学院湖北武汉430073 华中师范大学经济与工商管理学院湖北武汉430079

网络平台市场(Online Marketplace)上平台商发起促销活动邀请销售商参加是常见的商业现象。本文围绕竞争的销售商和网络零售平台构建了一个三阶段的促销博弈模型,研究网络平台市场上的销售商面对平台商发起促销活动时决定是否参加的促... 详细信息

网络平台市场(Online Marketplace)上平台商发起促销活动邀请销售商参加是常见的商业现象。本文围绕竞争的销售商和网络零售平台构建了一个三阶段的促销博弈模型,研究网络平台市场上的销售商面对平台商发起促销活动时决定是否参加的促销选择博弈,以及销售商和平台商的促销折扣决策。研究发现,对销售商们来说,都不参加,部分参加或者都参加平台促销活动都有可能成为均衡策略。参加平台促销活动在一定程度上能够缓和竞争,当参与成本均趋近于零时,都选择参加平台促销活动是唯一的均衡策略,而当参与成本均处于中等偏低范围内时,销售商的促销选择博弈将陷入"囚徒困境"。此外,佣金费率也将影响销售商促销选择均衡策略的分布;对平台商来说,销售商参加平台促销活动的数量越多,平台商将提供更高的促销折扣且其获得的利润将更高,而其制定的佣金费率越高或者销售商间的竞争程度越激烈并非一定对自身利润有利。

关键词：网络平台市场平台促销折扣竞争博弈论