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新媒体时代高校团属新媒体网络思政建设路径探析

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新闻研究导刊 2024年第4期15卷 156-159页

作者：阿的勒·扎克王琦璇林渝皓邢宇新疆大学党委学生工作部新疆乌鲁木齐830046 新疆大学旅游学院新疆乌鲁木齐830046 新疆大学“卓青新育”辅导员工作室新疆乌鲁木齐830046 新疆大学新闻与传播学院新疆乌鲁木齐830046

新媒体时代,青年群体对社会热点事件关注度更高,对社会焦点事件思虑更深,对网络媒体的依赖性更强。随着互联网技术逐渐渗透各个领域,新媒体已逐步成为青少年获取信息的重要渠道,新媒体平台上层出不穷的新闻、信息、观点、理念吸引青年... 详细信息

新媒体时代,青年群体对社会热点事件关注度更高,对社会焦点事件思虑更深,对网络媒体的依赖性更强。随着互联网技术逐渐渗透各个领域,新媒体已逐步成为青少年获取信息的重要渠道,新媒体平台上层出不穷的新闻、信息、观点、理念吸引青年群体关注,是高校思政教育工作亟须抢占的思想阵地,能为高校共青团提升思政教育水平和能力提供重要助力。但目前,各大高校团属新媒体工作仍存在没有深入了解青年需求、内容吸引力不足、高校重视程度较低等问题。文章采用文献综述和调查问卷的方法,阐述高校团属新媒体应加强新形势思政建设的重要原因,分析高校共青团组织要加快适应新媒体时代思政教育工作所面临的困境,提出新媒体时代高校团属新媒体网络思政建设路径:提高对新媒体时代文化传播形式的利用度,丰富新媒体时代思政教育模式;加强新媒体时代高校团属新媒体人员的能力,从基础层面强化整体工作能力;加大高校团属新媒体工作的保障力度,多措并举保障思政工作顺利开展等,旨在打造新媒体时代的宣传大格局,传播新媒体时代的强大正能量。

关键词：新媒体共青团网络思政高校团属新媒体

Co-Production of High-Grade Dissolving Pulp,Furfural,and Lignin from Eucalyptus via Extremely Low Acid Pretreatment and Pulping Technologies and Catalysis

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Journal of Renewable Materials 2023年第6期11卷 2555-2574页

作者： Chengxiang Li Yue Wu Chunhui Zhang Yao Liu qixuan Lin Junli Ren State Key Laboratory of Pulp and Paper Engineering School of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China

hemicellulose and lignin are not reasonably utilized during the dissolved pulp preparation *** work aimed to propose a process for the co-production of dissolving pulp,furfural,and lignin from ***-grade dissolving pulp was prepared from eucalyptus using a combination of extremely low acid(ELA)pretreatment,Kraft cooking,and elementary chlorine-free(ECF)*** obtained pre-hydrolysate was catalytic conversion into furfural in a biphasic system,and lignin during Kraft cooking and ECF was *** process condition was discussed as well as the mass flow *** results showed that ELA pretreatment could effectively remove 80.1%*** with traditional hydrothermal pretreatment,the ELA pretreatment significantly increased the xylose yield from 5.05 to 14.18 g/L at 170℃ for 2 h,which had practical significance for furfural *** 82.7%furfural yield and 82.9%furfural selectivity were obtained from xylose-rich pre-hydrolysate using NaCl as a phase modifier in a biphasic system with 4-methyl-2-pentanone(MIBK)as an organic phase by ion exchange resin catalysts at 190℃ for 2 ***,the pretreated eucalyptus was subjected to Kraft cooking,and the optimal alkali amount was 14%.Then,the Kraft pulp was bleached using the O-D1-EP-D_(2) sequence,and dissolving pulp was obtained with an ISO brightness of 86.0%,viscosity of 463 mL/g,andα-cellulose content of 95.4%.The Kraft lignin which has a potential application was investigated by 2D-HSQC NMR and 31P *** results showed that the S/G ratio of Kraft lignin was 1.93,and the content of phenolic hydroxyl groups was 2.53 mmol/***,based on the above proposed process,30.5 g dissolving pulp,5.5 g furfural,and 21.2 g lignin per 100 g eucalyptus chips(oven dry)were *** research will provide new catalysis and pulping technical routes for dissolving pulp,furfural,and Kraft lignin products,which are in great demand in the chemical industry.

关键词： Eucalyptus extremely low acid pretreatment dissolving pulp furfural kraft lignin

In situ surface-confined fabrication of single atomic Fe-N_(4) on N-doped carbon nanoleaves for oxygen reduction reaction

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Journal of Energy Chemistry 2021年第8期30卷 482-491,I0011页

作者： Xiaojing Jiang Jianian Chen Fenglei Lyu Chen Cheng qixuan Zhong Xuchun Wang Ayaz Mahsud Liang Zhang Qiao Zhang Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China

Controllable fabrication of Fe-N-C based single-atom catalysts(SACs)for enhanced electrocatalytic performance is highly desirable but still ***,an in situ surface-confined strategy was demonstrated for the synthesis of single atomic Fe-N_(4))on N-doped carbon nanoleaves(L-FeNC).The in situ generated Zn3[Fe(CN)6]2 could not only serve as a protection layer against collapse of nanoleaves but also provide abundant Fe source for the formation of Fe-N moieties during pyrolysis,leading to high surface area and high graphitization degree of L-FeNC *** from abundant Fe-N_(4))active sites,enhanced mass and charge transfer,the as-prepared L-FeNC manifested a half-wave potential of 0.89 V for oxygen reduction reaction(ORR)in 0.1 M KOH.A maximum power density of 140 m W cm^(-2)and stable discharge voltage even after operation for 50,000 s have been demonstrated when the L-FeNC was used as air cathode for Zn-air *** work not only provided a unique surfaceconfined strategy for the synthesis of two-dimensional nanocarbons,but also demonstrated the significant benefit from rational design and engineering of Fe-N-C SACs,thus offering great opportunities for fabrication of efficient energy conversion and storage devices.

关键词： Single atom catalyst Iron-nitrogen-carbon Surface confine Oxygen reduction reaction Metal-organic frameworks

Self-templated formation of cobalt-embedded hollow N-doped carbon spheres for efficient oxygen reduction

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Nano Research 2021年第8期14卷 2819-2825页

作者： Ayaz Mahsud Jianian Chen Xiaolei Yuan Fenglei Lyu qixuan Zhong Jinxing Chen Yadong Yin Qiao Zhang Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesJoint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow University199 Ren’ai RoadSuzhou 215123China School of Chemistry and Chemical Engineering Nantong UniversityNantong9 Seyuan RoadNantong226019China Department of Chemistry Materials Science and Engineering programand UCR Center for CatalysisUniversity of CaliforniaRiversideCA 92521USA

The slow kinetics at the cathode of oxygen reduction reaction(ORR)seriously limits the efficiencies of fuel cells and metal-air ***,the state-of-the-art ORR electrocatalyst,suffers from high cost,low earth abundance,and poor *** a self-templated strategy based on metal-organic frameworks(MOFs)is proposed for the fabrication of hollow nitrogen-doped carbon spheres that are embedded with cobalt nanoparticles(Co/HNC).The Co/HNC manifests better ORR activities,methanol tolerance,and stability than commercial Pt/*** high ORR performance of Co/NHC can be attributed to the hollow structure which provides enlarged electrochemically active surface area,the formation of more Co-N species,and the introduction of *** work highlights the significance of rational engineering of MOFs for enhanced ORR activity and stability and offers new routes to the design and synthesis of high-performance electrocatalysts.

关键词： cobalt self-templated metal organic framework hollow sphere oxygen reduction reaction

A flutter-effect-based triboelectric nanogenerator for breeze energy collection from arbitrary directions and self-powered wind speed sensor

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Nano Research 2019年第12期12卷 3018-3023页

作者： Jie Hu Xianjie Pu Hongmei Yang qixuan Zeng Qian Tang Dazhi Zhang Chenguo Hu Yi Xi Department of Applied Physics State Key Laboratory of Power Transmission Equipment&System Security and New TechnologyChongqing UniversityChongqing 400044China

Triboelectric nanogenerators(TENGs)have been developed rapidly into an efficient wind energy collection *** the frictionwear and energy loss in breeze energy collection is a research direction worthy of ***,a flutter-effect-based triboelectricnanogen erator(FE-TENG)is designed to collect the breeze energy at low wind speed from arbitrary *** from previouswind-driven TENGs,the wind-driven part of this device is separated from the TENG units,which not only avoids the wear of friction layerscaused by direct wind contact but also reduces the energy loss,therefore,relatively stable electric outputs are obtained with Voc-281 V,Isc-13.4μA,Qsc-143 nC,and output power-4 mW at the wind speed of 4.5 m/s,*** addition,a real-time wind speed monitoringsystem based on LabVIEW software with high sen sitivity and fast response to wind is achieved relying on the excellent linear relation shipbetween wind speed and electrical output ***,it has been successfully applied as power sources for portable electronics,about 170 commercial light-emitting devices(LEDs)are lighted and a digital watch is successfully driven at the wind speed of 2.9 m/*** worknot only provides a new structure and idea for the future collection of clean and sustainable breeze energy from arbitrary directions but also hasgreat potential in the field of self-powered systems.

关键词： flutter effect triboelectric nanogenerator arbitrary directions wind speed sensor

银杏雌、雄植株叶片药用成分含量及转录组差异分析

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中南林业科技大学学报 2024年第1期44卷 162-174页

作者：傅芸钟寅枭许薇刘玉华张心娴魏启轩曹福亮付芳芳南京林业大学南方现代林业协同创新中心江苏南京210037 江苏农林职业技术学院风景园林学院江苏镇江212400

【目的】探究雌、雄银杏叶片中萜内酯和黄酮醇苷及其主要组分的含量差异及基因在转录水平上的差异。【方法】选取雌、雄银杏各10株,以叶片为试验材料,运用液相色谱-质谱联用技术(LC-MS)、高效液相色谱-紫外检测法(HPLC-UV),分别测定萜... 详细信息

【目的】探究雌、雄银杏叶片中萜内酯和黄酮醇苷及其主要组分的含量差异及基因在转录水平上的差异。【方法】选取雌、雄银杏各10株,以叶片为试验材料,运用液相色谱-质谱联用技术(LC-MS)、高效液相色谱-紫外检测法(HPLC-UV),分别测定萜内酯、黄酮醇苷含量,并选取萜内酯和黄酮醇苷含量具有代表性的3个雌株和3个雄株进行转录组测序。【结果】雌株中萜内酯及其主要组分含量均略高于雄株,但差异不显著;黄酮醇苷及其主要组分含量均高于雄株,但各组分中仅槲皮素含量差异显著(P=0.045)。转录组测序共得到288 023 696条Raw reads,257 059 884条Clean reads,Q30≥91.24%,GC含量≥45.95%,唯一比对率≥85.04%。共鉴定(P <0.05且|log2FC|≥1)出676个差异表达基因,与雌株相比,雄株有340个差异表达基因上调表达,336个差异表达基因下调表达。GO富集分析显示有372个差异表达基因显著富集到氧化还原过程、碳水化合物代谢过程、解毒、催化活性等163个GO条目中。KEGG富集分析表明差异表达基因主要与植物激素信号转导、植物-病原互作、其他聚糖降解、类固醇生物合成等代谢通路有关。银杏萜内酯和黄酮醇合成通路上相关结构基因的表达在雌株中均高于雄株,与雌株中萜内酯、黄酮醇苷含量高于雄株的趋势相一致。【结论】不同性别银杏叶片中萜内酯和黄酮醇苷含量及生物合成途径相关基因的表达量均有差异,雌株略高于雄株。研究为基于不同性别的叶用银杏优良种质的筛选和培育提供了一定的理论基础。

关键词：银杏叶片雌、雄植株萜内酯黄酮醇苷转录组

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地震作用下半填路堤的伤损评价研究

石家庄铁道大学学报（自然科学版） 2024年第2期37卷 99-105页

作者：尹腾谦司春棣凡涛涛张勇李奇轩石家庄铁道大学土木工程学院河北石家庄050043 石家庄铁道大学交通运输学院河北石家庄050043 河北省交通安全与控制重点实验室河北石家庄050043 河北省高速公路京雄筹建处河北保定071799

针对当前半填路堤动力响应问题研究成本高、参数调整不灵活、影响因素单一等问题,基于数值模拟,以四川某路段发生震害的半填路堤为例,分析不同等级地震荷载(6级、7级、8级、9级)作用下半填路堤的设施损伤。采用人工拟合地震波,引入黏弹... 详细信息

针对当前半填路堤动力响应问题研究成本高、参数调整不灵活、影响因素单一等问题,基于数值模拟,以四川某路段发生震害的半填路堤为例,分析不同等级地震荷载(6级、7级、8级、9级)作用下半填路堤的设施损伤。采用人工拟合地震波,引入黏弹性边界,分析半填路堤在不同条件下的位移变形、边坡稳定性和路堤承载力。通过强度折减法与极限平衡法评估边坡稳定性,运用Terzaghi公式计算路堤承载力。结果表明,不同工况下,强度折减法对比极限平衡法得到的安全系数误差均在4%以内,说明强度折减法可以较好地评估边坡稳定性;随着地震等级的提高,半填路堤的位移增量逐渐增大,边坡稳定性逐渐降低,路堤承载力逐渐降低;半填路堤在8级、9级地震荷载作用下处于失稳状态;在8级地震荷载作用下,半填路堤位移增量增长约20倍,安全系数下降52.8%,路堤承载力下降57.0%,同比变化幅度均最明显,表明8级地震荷载对半填路堤的破坏性更显著。

关键词：半填路堤地震位移变形边坡稳定性路堤承载力

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基于斑马鱼炎症模型筛选荔枝草抗炎药效物质

中国医院药学杂志 2024年第18期44卷 2101-2108页

作者：孔庆新王淇漩李苏楠刘学琴汲晓玲李泽浩赵俊毅曲中原重庆化工职业学院制药工程学院重庆401228 哈尔滨商业大学药学院黑龙江哈尔滨150076

目的:基于斑马鱼炎症模型筛选荔枝草抗炎药效物质。方法:运用UPLC-Q-TOF-MS/MS技术表征荔枝草95%、70%、50%、30%乙醇和水提取部位的化学成分质谱信息,确定共有成分;建立斑马鱼炎症模型,以TNF-α、IL-6以及IL-10表达量为指标评价各部位... 详细信息

目的:基于斑马鱼炎症模型筛选荔枝草抗炎药效物质。方法:运用UPLC-Q-TOF-MS/MS技术表征荔枝草95%、70%、50%、30%乙醇和水提取部位的化学成分质谱信息,确定共有成分;建立斑马鱼炎症模型,以TNF-α、IL-6以及IL-10表达量为指标评价各部位抗炎活性;利用皮尔森相关系数和灰色关联度分析共有成分峰面积与抗炎活性指标的相关性,筛选最佳抗炎活性部位及相关药效物质,并进行实验验证。结果:95%乙醇部位抗炎活性最好。5个提取部位有22个共有成分,其中高车前苷、高车前素、异鼠李素、木犀草素、芹菜素、鼠尾草酚和6-羟基木犀草素为荔枝草抗炎潜在药效物质。对前6个成分进行验证,结果显示均能显著降低斑马鱼炎症模型TNF-α、IL-6的表达,促进IL-10的表达(P<0.01)。结论:荔枝草抗炎药效物质的阐明为其质量评价、资源综合开发利用奠定了基础。

关键词：荔枝草化学表征抗炎活性相关性分析

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悬挂式腹膜透析液加热保温袋的研制与应用

医疗装备 2024年第14期37卷 21-24页

作者：吕明花王惠珍杨绮璇李申恒南方医科大学珠江医院广东广州510280

目的研制一款悬挂式腹膜透析液加热保温袋,使腹膜透析液加热后能够恒温灌注腹腔,减少换液中因透析液温度下降导致的相关胃肠道症状。方法悬挂式腹膜透析液加热保温袋袋体由3层组成,内层为碳纤维发热膜和热探头感应器,中间层为防水布,外... 详细信息

目的研制一款悬挂式腹膜透析液加热保温袋,使腹膜透析液加热后能够恒温灌注腹腔,减少换液中因透析液温度下降导致的相关胃肠道症状。方法悬挂式腹膜透析液加热保温袋袋体由3层组成,内层为碳纤维发热膜和热探头感应器,中间层为防水布,外层为潜水面料并装有拉链,袋体顶部连接悬挂绳。连接电源工作后,悬挂式腹膜透析液加热保温袋可加热腹膜透析液并进入保温模式,恒温腹腔灌注至换液结束。选取2021年8月至2022年4月医院收治的400例腹膜透析患者进行临床验证,以随机数字表法分为观察组与对照组,每组200例。观察组使用本研究设计的悬挂式腹膜透析液加热保温袋进行腹腔灌注,对照组使用保温箱加热透析液进行腹腔灌注。比较两组腹腔灌注疼痛评分和灌注后24 h腹泻情况。结果腹腔灌注过程中,观察组疼痛评分低于对照组(P<0.05);灌注后24 h内,观察组腹泻发生率低于对照组(P<0.05)。结论悬挂式腹膜透析液加热保温袋能够减少换液中因透析液温度下降导致的相关胃肠道症状,适用于住院或居家腹膜透析患者。

关键词：腹膜透析透析液温度加热保温袋

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