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Tortuosity regulation of two-dimensional nanofluidic films for water evaporation-induced electricity generation

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Nano Research 2024年第7期17卷 6192-6202页

作者： Zhihang Liu Chao Liu Anqi Ni Kunpeng Mao Long Chen Liang Xue jingwen sun Xin Wang Pan Xiong Junwu Zhu Key Laboratory for Soft Chemistry and Functional Materials of Ministry Education School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China

Water evaporation-induced electricity generation is a promising technology for renewable energy ***,the output power of some reported two-dimensional(2D)nanofluidic films is still restricted by the relatively weak water–solid interactions within the tortuous *** further enhance the comprehension and utilization of water–solid interactions,it is of utmost importance to conduct an in-depth investigation and propose a regulatory concept encompassing ion ***,we propose tortuosity regulation of 2D nanofluidic titanium oxide(Ti_(0.87)O_(2))films to optimize the ion transport within the interlayer nanochannel for enhanced efficiency in water evaporation-induced electricity generation for the first *** significance of tortuosity in ion transport is elucidated by designing three 2D nanofluidic films with different *** analysis and in situ Raman measurement demonstrate that low tortuosity can facilitate the formation of efficient pathways for hydrated proton transport and promote water–solid ***,devices fabricated with the optimized 2D nanofluidic films exhibited a significantly enhanced output power density of approximately 204.01μW·cm^(−2),far exceeding those prepared by the high-tortuosity 2D nanofluidic *** work highlights the significance of the construction of low tortuosity channels for 2D nanofluidic films with excellent performance.

关键词： water evaporation-induced electricity generation tortuosity ion transport two-dimensional nanofluidic films

Multiscale confinement nitridation in molybdenum carbide for efficient hydrogen production

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Journal of Energy Chemistry 2024年第7期94卷 61-69页

作者： Liming Dai Chenchen Fang Xiaoyuan Zhang Xuefeng Xu Xuanxuan Chen Xinyue Zong Xueming Hu Wenyao Zhang Liang Xue Pan Xiong Yongsheng Fu jingwen sun Junwu Zhu Key Laboratory for Soft Chemistry and Functional Materials Ministry of EducationNanjing University of Science and TechnologyNanjing 210094JiangsuChina

The molybdenum carbide(Mo_(2)C)has been regarded as one of the most cost-efficient and stable electrocatalyst for the hydrogen evolution reaction(HER)by the virtue of its Pt-like electronic ***,the inherent limitation of high density of empty valence band significantly reduces its catalytic reactivity by reason of strong hydrogen desorption ***,we propose a multiscale confinement synthesis method to design the nitrogen-rich Mo_(2)C for modulating the band structure via decomposing the pre-coordination bonded polymer in a pressure-tight tube sealing ***-bonded c/N-Mo in the coordination precursor constructs a micro-confinement space,enabling the homogeneous nitrogenization in-situ happened during the formation of Mo_(2)***,the evolved gases from the precursor decomposition in tube sealing system establish a macro-confinement environment,preventing the lattice N escape and further endowing a continuous *** the multiscale confinement effects,the nitrogen-rich Mo2C displays as high as 25%N-Mo concentration in carbide lattice,leading to a satisfactory band ***,the constructed nitrogen-rich Mo_(2)C reveals an adorable catalytic activity for HER in both alkaline and acid *** is anticipated that the multiscale confinement synthesis strategy presents guideline for the rational design of electrocatalysts and beyond.

关键词： Molybdenum carbide Hydrogen evolution reaction Multiscale confinement synthesis Valence band modulation Nitrogen doping

Modularized sulfur storage achieved by 100% space utilization host for high performance lithium-sulfur batteries

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Chinese Chemical Letters 2024年第4期35卷 237-243页

作者： Jun Jiang Tong Guo Wuxin Bai Mingliang Liu Shujun Liu Zhijie Qi jingwen sun Shugang Pan Aleksandr L.Vasiliev Zhiyuan Ma Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and TechnologyNanjing 210094China Changzhou Institute of Technology Changzhou 213032China Shubnikov Institute of Crystallography Russian Academy of SciencesLeninskii pr.59Moscow 119333Russia Jiangsu Pylon Battery Co. Ltd.Yangzhou 211400China

Popularization of lithium-sulfur batteries(LSBs) is still hindered by shuttle effect and volume ***, a new modularized sulfur storage strategy is proposed to solve above problems and accomplished via employing 100% space utilization host material of cobalt loaded carbon nanoparticles derived from ZIF-67. The modular dispersed storage of sulfur not only greatly increases the proportion of active sulfur,but also inhibits the occurrence of volume expansion. Meanwhile, 100% space utilization host material can greatly improve the conductivity of the cathode, provide a larger electrolyte wetting interface and effectively suppress the shuttle effect. Moreover, loaded cobalt particles have high catalytic activity for electrochemical reaction and can effectively improve the redox kinetics. The cell with new cathode host material carbonized at 650 ℃(ZIF-67(650 ℃)) exhibits superior rate performance and can maintain a high specific capacity of 950 m Ah/g after 100 cycles at 0.2 C, showing a good cycle stability.

关键词： Modularized sulfur storage Space utilization Cathode host material ZIF-67 Lithium-sulfur batteries

Efficacy of acupuncture in refractory irritable bowel syndrome patients: a randomized controlled trial

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FRONTIERS OF MEDICINE 2024年第4期18卷 678-689页

作者： Zhao, Jun Zheng, Hui Wang, Xin Wang, Xuefei Shi, Yunzhou Xie, Chaorong Tao, Qingfeng Li, Da sun, jingwen Tian, Junjian Gao, Junxia Liu, Huimin Shi, Suhua Ni, Jinxia Xue, Rongdan Hu, Hui Chen, Min Yu, Shuguang Li, Zhigang Beijing Univ Chinese Med Sch Acupuncture Moxibust & Tuina Beijing 100029 Peoples R China Sichuan Univ West China Hosp Dept Integrated Tradit & Western Med Chengdu Peoples R China Chengdu Univ Tradit Chinese Med Hosp 3 Acupuncture & Tuina Sch Chengdu 610000 Peoples R China Capital Med Univ Beijing Hosp Tradit Chinese Med Beijing 100010 Peoples R China Beijing Univ Chinese Med Dept Acupuncture & Moxibust Dongzhimen Hosp Beijing 100700 Peoples R China Beijing Univ Chinese Med Affiliated Hosp 3 Dept Rehabil Beijing 100029 Peoples R China Beijing Univ Chinese Med Dongfang Hosp Dept Acupuncture & Moxibust Beijing 100078 Peoples R China Hosp Chengdu Univ Tradit Chinese Med Anorectal Dis Dept Chengdu 610075 Peoples R China

Previous studies have confirmed that acupuncture for irritable bowel syndrome (IBS) provided an additional benefit over usual care alone. Therefore, we performed a multicenter, randomized, sham-controlled trial to assess the efficacy and safety of acupuncture versus sham acupuncture for refractory IBS in patients in the context of conventional treatments. Patients in the acupuncture and sham acupuncture groups received real or sham acupuncture treatment in 3 sessions per week for a total of 12 sessions. The primary outcome was a change in the IBS-Symptom Severity Scale (IBS-SSS) score from baseline to week 4. A total of 521 participants were screened, and 170 patients (85 patients per group) were enrolled and included in the intention-to-treat analysis. Baseline characteristics were comparable across the two groups. From baseline to 4 weeks, the IBS-SSS total score decreased by 140.0 (95% CI: 126.0 to 153.9) in the acupuncture group and 64.4 (95% CI: 50.4 to 78.3) in the sham acupuncture group. The between-group difference was 75.6 (95% CI: 55.8 to 95.4). Acupuncture efficacy was maintained during the 4-week follow-up period. There were no serious adverse events. In conclusion, acupuncture provided benefits when combined with treatment as usual, providing more options for the treatment of refractory IBS.

关键词： acupuncture functional gastrointestinal disorders irritable bowel syndrome clinical trial

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新冠病毒肺炎疫情对白内障患者就医的影响

航空航天医学杂志 2024年第2期35卷 132-135页

作者：孙敬文哈尔滨二四二医院哈尔滨150066

目的分析新冠病毒肺炎疫情对短眼轴白内障患者就医及术后疗效的影响。方法选取2020年01月-2022年10月到哈尔滨二四二医院眼科就诊的短眼轴(AL≤22.5)白内障患者60例。观察组30例为膨胀期老年性白内障患者,晶状体膨胀,眼压介于21 mmHg-40... 详细信息

目的分析新冠病毒肺炎疫情对短眼轴白内障患者就医及术后疗效的影响。方法选取2020年01月-2022年10月到哈尔滨二四二医院眼科就诊的短眼轴(AL≤22.5)白内障患者60例。观察组30例为膨胀期老年性白内障患者,晶状体膨胀,眼压介于21 mmHg-40 mmHg之间;对照组30例为老年性白内障患者未成熟期,晶状体混浊,眼压正常患者。观察组患者入院后给予降眼压治疗(派立明(布林佐胺)眼药水和阿法根(酒石酸溴莫尼定)眼药水,各一日两次点眼)。完善检查后行白内障超声乳化吸除术联合一期人工晶体植入术联合房角分离术;对照组行白内障超声乳化吸除术联合人工晶体植入术,术后1天分别观察两组患者的视力、眼压,术后一个月观察两组患者的视力、眼压、前房深度和视野。结果两组患者在发病年龄、术前视力和患眼眼轴长度三个方面比较,差异无统计学意义(P≥0.05),术前眼压和前房深度的差异有统计学意义(P≤0.01);术中白内障超声乳化时间的差异没有统计学意义(P≥0.05);术后一天观察组和对照组最佳矫正远视力和眼压比较差异均有统计学意义(P≤0.01);术后一个月观察组和的最佳矫正远视力、视野比较差异有统计学意义(P≤0.01),眼压和前房深度比较差异无统计学意义(P≥0.05);观察组的术前眼压分别与术后一天、术后一个月进行比较,差异均有统计学意义(P≤0.01);对照组术前眼压和术后一天、术后一个月比较差异无统计学意义(P≥0.05);两组术前和术后一天、术后一个月前房深度比较差异均有统计学意义(P≤0.01)。结论对于短眼轴的白内障患者,应及时行白内障超声乳化吸除联合人工晶体植入手术,形成有效前房深度,避免由于晶状体膨胀,前房变浅,加重房角粘连,继发青光眼,导致术后视力、视野不佳,甚至需要行二期抗青光眼手术。

关键词：新冠病毒肺炎短眼轴白内障视野

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酿酒酵母代谢工程改造高效合成齐墩果酸

食品与发酵工业 2024年第18期50卷 67-74页

作者：段丽娜曾伟主孙旸周景文吉林农业大学秸秆综合利用与黑土地保护教育部重点实验室吉林长春130118 江南大学未来食品科学中心江苏无锡214122

齐墩果酸因其在保肝、抗炎和抗肿瘤等方面具有突出的生物活性,已被广泛应用于医药领域。目前,齐墩果酸植物提取法效率低,微生物合成法受途径中异源细胞色素P450酶表达水平低和电子传递不平衡等限制,导致齐墩果酸生产无法满足市场需求。... 详细信息

齐墩果酸因其在保肝、抗炎和抗肿瘤等方面具有突出的生物活性,已被广泛应用于医药领域。目前,齐墩果酸植物提取法效率低,微生物合成法受途径中异源细胞色素P450酶表达水平低和电子传递不平衡等限制,导致齐墩果酸生产无法满足市场需求。该研究以实验室保存的一株敲除GAL 80的酿酒酵母菌株出发,构建了齐墩果酸前体物质β-香树脂醇的合成路径,并通过对甲羟戊酸途径及角鲨烯合成途径关键基因进行过量表达,得到一株β-香树脂醇产量为125.8 mg/L的菌株。以该菌株为底盘,导入适配性较高的产齐墩果酸的CYP716A12和ATR1基因,成功构建了齐墩果酸合成途径。通过平衡途径中CYP716A12和ATR1的表达,发现高的CYP716A12∶ATR1表达比率有利于提高齐墩果酸产量。结合增强乙酰辅酶A供应和NADPH再生,齐墩果酸摇瓶水平和5 L-发酵罐水平产量分别达到304.0 mg/L和680.8 mg/L,为目前报道最高产量。该研究为利用酿酒酵母合成齐墩果酸和下游产物相关研究奠定了基础。

关键词：酿酒酵母齐墩果酸 P450酶乙酰辅酶A NADPH

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针对高度近视并发性白内障患者的人工晶体选择的多因素分析:从患者和医生的双重视角

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航空航天医学杂志 2024年第8期35卷 905-908页

作者：孙敬文刘妍哈尔滨市二四二医院眼科哈尔滨150066

目的本研究旨在从患者角度和医生角度探讨高度近视并发性白内障患者选择不同人工晶体的影响因素。方法研究对象为高度近视并发性白内障患者,术前统计患者基本信息并完成全面的术前检查。术后使用VF-14问卷记录患者的术后满意度。数据采... 详细信息

目的本研究旨在从患者角度和医生角度探讨高度近视并发性白内障患者选择不同人工晶体的影响因素。方法研究对象为高度近视并发性白内障患者,术前统计患者基本信息并完成全面的术前检查。术后使用VF-14问卷记录患者的术后满意度。数据采用SPSS 26.0软件进行统计分析,重点分析影响患者和医生选择双焦点IOL与单焦点IOL的因素。结果结果显示,植入双焦点IOL的患者术后总体满意度和视近满意度显著优于植入单焦点IOL的患者(P<0.05)。患者选择双焦点IOL的主要原因包括年龄、工作性质和经济实力等因素(P<0.05)。而临床医生选择双焦点IOL的主要原因则是患者的术前矫正视力和患者自身的眼部情况等(P<0.05)。结论本研究结果表明,对于高度近视并发性白内障患者而言,植入双焦点IOL较单焦点IOL在术后满意度上具有显著优势。然而,双焦点IOL并不适用于所有患者。它更适用于年龄较小、工作生活对视近要求较高且具备一定经济实力的患者群体。未来,随着医疗技术的进步和政策的支持,双焦点IOL的应用范围有望进一步扩大,从而提升高度近视并发性白内障患者的整体术后满意度。

关键词：高度近视白内障双焦点IOL 术后满意度

“三孩”政策背景下社区支持与家庭育儿压力的关系探究

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成都师范学院学报 2024年第2期40卷 73-83页

作者：孙靖雯杨晓萍西南大学教育学部重庆400715

为探究社区支持对家庭育儿压力的影响,以502名幼儿家长作为调查对象,采用社区支持量表与家庭育儿压力量表调查社区支持水平和家庭育儿压力水平,以探析社区支持与家庭育儿压力之间的关系。结果发现,家庭育儿压力呈中等水平,且在育儿数量... 详细信息

为探究社区支持对家庭育儿压力的影响,以502名幼儿家长作为调查对象,采用社区支持量表与家庭育儿压力量表调查社区支持水平和家庭育儿压力水平,以探析社区支持与家庭育儿压力之间的关系。结果发现,家庭育儿压力呈中等水平,且在育儿数量、父母学历上存在显著差异;社区支持缺位,且在育儿数量、父亲学历上存在显著差异;社区支持与家庭育儿压力之间呈显著负相关,说明社区支持水平越高,家庭育儿压力越低。社区支持中的精神支持维度可以负向预测家长育儿压力。基于此,提出以下建议:转变家庭养育观念,充分认识社区支持家庭育儿的重要性;兼顾社区支持育儿的针对性和全面性;构建长效的社区支持育儿管理体制。

关键词：社区支持家庭育儿父母育儿压力 “三孩”政策生育政策生育意愿

数字物流、韧性经济、生态环境治理三元系统耦合协调时空演化及影响因素分析

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物流科技 2024年第18期47卷 81-85+110页

作者：万君孙婧雯辽宁工程技术大学基础教学部辽宁工程技术大学工商管理学院

数字物流、经济发展韧性与生态环境治理作为一个耦合协调的开放性系统，是推动各省高质量发展的关键路径。文章基于我国30个省份的面板数据，从韧性经济、数字物流、生态环境治理三个视角下构建指标框架，设计经济韧性高质量发展水平测... 详细信息

数字物流、经济发展韧性与生态环境治理作为一个耦合协调的开放性系统，是推动各省高质量发展的关键路径。文章基于我国30个省份的面板数据，从韧性经济、数字物流、生态环境治理三个视角下构建指标框架，设计经济韧性高质量发展水平测度指标体系和三元系统耦合模型，运用熵权Topsis法进行指标处理，测算了数字物流、韧性经济与生态环境治理的耦合协调度，并利用Moran's I指数和空间自相关数据,分析三元系统的耦合协调度时空演化格局以及灰色关联模型分析其内在驱动因素。

关键词：数字物流韧性经济耦合协调度高质量发展灰色关联模型