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玉米芯多孔碳超疏水棉织物的制备及性能

印染 2024年第1期50卷 6-9页

作者：滕毅徐丽慧潘虹姚程健李永贺王黎明上海工程技术大学纺织服装学院上海201620 国家先进印染技术创新中心山东泰安271000

以废弃玉米芯为原料,经氢氧化钾活化,高温炭化制备玉米芯多孔碳(CPC)。对CPC微观形貌进行表征,研究了不同炭化温度对CPC表面形貌的影响。当炭化温度为600℃时,制备的CPC粉末具有均匀的微观多孔粗糙结构。利用低表面能物质聚二甲基硅氧烷... 详细信息

以废弃玉米芯为原料,经氢氧化钾活化,高温炭化制备玉米芯多孔碳(CPC)。对CPC微观形貌进行表征,研究了不同炭化温度对CPC表面形貌的影响。当炭化温度为600℃时,制备的CPC粉末具有均匀的微观多孔粗糙结构。利用低表面能物质聚二甲基硅氧烷(PDMS)对棉织物整理,制备了超疏水棉织物。对整理织物的表面形貌进行表征,研究了不同质量分数的CPC与PDMS整理后棉织物的超疏水性能。结果表明,当CPC质量分数为0.5%,PDMS质量分数为4%时,整理棉织物水滴接触角达到156.9°,具有较好的超疏水、防污及自清洁性能。

关键词：生物质炭化玉米芯超疏水棉织物

Optimal interventional treatment for liver cancer:HAIC,TACE or iTACE?

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Journal of Interventional Medicine 2023年第2期6卷 59-63页

作者： Naijian Ge Hongbo wang chengjian He Xiangdong wang Jian Huang Yefa Yang Mini-Invasive Intervention Center Third Affiliated Hospital of Naval Medical University/Shanghai Eastern Hepatobiliary Surgery HospitalShanghai200438China

Primary liver cancer is a common and lethal malignancy in China.Transcatheter arterial chemoembolization(TACE)is globally recognized as the preferred treatment modality for the non-surgical resection of hepatocellular carcinoma(HCC),while transcatheter arterial infusion(TAI)is another effective interventional treatment for HCC.In recent years,hepatic arterial infusion chemotherapy(HAIC)has gained increasing attention as an application-regulated modality for TAI.Owing to the current debate in the medical community regarding the use of HAIC and TACE for the treatment of HCC,the application of both approaches should be considered at a higher level,with a broader perspective and a more normative aspect.Accordingly,we aimed to define the rational combination of liver cancer TAI/HAIC with TACE as infusion transcatheter chemoembolization(iTACE),which suggests that the two interventions are not superior but lead to a mutually beneficial situation.In this review,we sought to discuss the development,specification,application,challenge and innovation,debate,and union of TAI/HAIC and TACE,and the clinical application and latest research on iTACE.We aimed to introduce new concepts of iTACE and expect new breakthroughs in the treatment of liver cancer owing to the combined use of the two major interventional tools.

关键词： Hepatocellular carcinoma Hepatic artery infusion chemotherapy Transcatheter arterial chemoembolization

Obstacle detection:improved YOLOX-S based on swin transformer-tiny

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Optoelectronics Letters 2023年第11期19卷 698-704页

作者： ZHANG Hongying LU chengjian CHEN Enyao College of Electronic Information and Automation Civil Aviation University of ChinaTianjin300300China

Aiming at the accuracy challenge in obstacle detection for autonomous driving,we propose an improved you only look once X-S(YOLOX-S) model based on swin transformer-tiny YOLOX-S(ST-YOLOX-S) for obstacle detection,which could detect multiple targets,including people,cars,bicycles,motorcycles,and buses.Our method mainly comprises two aspects as follows.To improve the capability of local feature extraction and then obtain more accurate detection for obstacles under real-world vehicle conditions,the existing backbone of YOLOX-S is replaced with the swin transformer-tiny backbone.We reduced the number of channels between the swin transformer and path aggregation-feature pyramid network(PA-FPN) from [96,192,384,768] to [192,384,768],to decrease the computational cost and then make the swin transformer-tiny more compatible with the PA-FPN.Conclusively,on the popular COCO dataset,the proposed ST-YOLOX-S improves the detection mean average precision(mAP) by 6.1% when compared with YOLOX-S.Among the five types of obstacles that appear in simulated actual vehicle conditions,our ST-YOLOX-S also achieves superior performance compared to YOLOX-S.Furthermore,our method achieves significant performance over the YOLOv3 on obstacle detection,which shows the effectiveness of the proposed algorithm.

关键词： obstacle network backbone

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义乌法院优化买卖合同营商环境的实践

人民司法 2024年第4期 38-43页

作者：陈成建王亚萍朱晗晟叶璐莎浙江省义鸟市人民法院

营商环境是评价某一国家或地区经济发展潜力的重要指标,包括有形因素与无形因素。当今世界更注重对营商环境无形因素的评估,聚焦于其法治化程度。①习近平总书记在博鳌亚洲论坛2018年年会开幕式重要讲话中指出,营商环境就像空气,只有空... 详细信息

营商环境是评价某一国家或地区经济发展潜力的重要指标,包括有形因素与无形因素。当今世界更注重对营商环境无形因素的评估,聚焦于其法治化程度。①习近平总书记在博鳌亚洲论坛2018年年会开幕式重要讲话中指出,营商环境就像空气,只有空气清新才能吸引更多投资。2023年浙江省政府工作报告也把持续优化营商环境作为“一号改革工程”,对浙江营造市场化、法治化、国际化一流营商环境工作作出重要决策部署。

关键词：经济发展潜力政府工作报告营商环境买卖合同博鳌亚洲论坛法治化程度决策部署国际化

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钢包用耐火材料侵蚀机理与优化的研究进展

连铸 2024年第2期 14-27,63页

作者：李怡宏薛志彪张红旭王利勇王栋何奕波胡欣华承健胡啸太原科技大学材料科学与工程学院山西太原030024 山西建邦集团通才工贸有限公司山西临汾041000 太原科技大学电子信息与工程学院山西太原030024

耐火材料是保障钢铁生产安全以及增效提质的重要基石。在现代钢铁冶金生产中,对耐火材料提出了更高的标准,包括能够抵御更高温度、更强烈的化学侵蚀以及更严重的机械破坏。只有适配高品质的耐火材料,高端钢材的先进生产流程和创新技术... 详细信息

耐火材料是保障钢铁生产安全以及增效提质的重要基石。在现代钢铁冶金生产中,对耐火材料提出了更高的标准,包括能够抵御更高温度、更强烈的化学侵蚀以及更严重的机械破坏。只有适配高品质的耐火材料,高端钢材的先进生产流程和创新技术才能得到有效保证。综述了不同耐火材料抗侵蚀性能优化以及钢包耐火材料侵蚀机理,提出新型耐火材料的研发需要在原料组分选择和结构匹配设计上出发,以及表面涂层技术的应用,旨在提高钢包用耐火材料在高温、腐蚀性环境中的稳定性和寿命。

关键词：钢包耐火材料侵蚀机理熔渣钢液

Production,purific tion,characterization and application of two novel endoglucanases from buffalo rumen metagenome

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Journal of Animal Science and Biotechnology 2023年第3期14卷 1235-1251页

作者： Zhenxiang Meng chengjian Yang Jing Leng Weiyun Zhu Yanfen Cheng Laboratory of Gastrointestinal Microbiology National Center for International Research On Animal Gut NutritionNanjing Agricultural UniversityNanjing 210095China Buffalo Research Institute Chinese Academy of AgriculturalNanning 530000China Key Laboratory of Animal Nutrition and Feed Science of Yunnan Province Yunnan Agricultural UniversityKunming 650000China

Background Lignocellulose biomass is the most abundant and renewable material in nature.The objectives of this study were to characterize two endoglucanases Trep Cel3 and Trep Cel4,and determine the effect of the combination of them(1.2 mg Trep Cel3,0.8 mg Trep Cel4)on in vitro rumen fermentation characteristics.In this study,three nature lignocellulosic substrates(rice straw,RS;wheat straw,WS;leymus chinensis,LC)were evaluated for their in vitro digestibility,gas,NH3-N and volatile fatty acid(VFA)production,and microbial protein(MCP)synthesis by adding enzymatic combination.Methods Two endoglucanases’genes were successfully expressed in Escherichia coli(E.coli)BL21(DE3),and enzymatic characteristics were further characterized.The combination of Trep Cel3 and Trep Cel4 was incubated with lignocellulosic substrates to evaluate its hydrolysis ability.Results The maximum enzymatic activity of Trep Cel3 was determined at p H 5.0 and 40℃,while Trep Cel4 was at p H 6.0 and 50℃.They were stable over the temperature range of 30 to 60℃,and active within the p H range of 4.0 to 9.0.The Trep Cel3 and Trep Cel4 had the highest activity in lichenan 436.9±8.30 and 377.6±6.80 U/mg,respectively.The combination of Trep Cel3 and Trep Cel4 exhibited the highest efficiency at the ratio of 60:40.Compared to maximum hydrolysis of Trep Cel3 or Trep Cel4 separately,this combination was shown to have a superior ability to maximize the saccharification yield from lignocellulosic substrates up to 188.4%for RS,236.7%for wheat straw WS,222.4%for LC and 131.1%for sugar beet pulp(SBP).Supplemental this combination enhanced the dry matter digestion(DMD),gas,NH3-N and VFA production,and MCP synthesis during in vitro rumen fermentation.Conclusions The Trep Cel3 and Trep Cel4 exhibited the synergistic relationship(60:40)and significantly increased the saccharification yield of lignocellulosic substrates.The combination of them stimulated in vitro rumen fermentation of lignocellulosic substrates.This combination has the potential to be a feed addit

关键词： Endoglucanase In vitro Lignocellulosic substrates Rumen fermentation

同步同心旋喷式复合斜撑桩周边底板开裂原因初步分析及预防措施

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建筑施工 2024年第5期46卷 741-744页

作者：胡磊邓岳保吕城坚王乾浩宁波宁大地基处理技术有限公司浙江宁波315211 宁波市能源地下结构重点实验室浙江宁波315211 浙江鸿晨建设有限公司浙江宁波315032

结合宁波滨海软土地区典型同步同心旋喷式复合斜桩支撑项目的各种底板裂缝情况,分析了复合斜撑桩周边底板出现裂缝的初步原因,并提出了多种预防措施,上述措施在后续项目实践中取得了良好效果,可供今后同类项目设计及施工借鉴。

关键词：复合斜撑桩滨海软土裂缝应力集中预防措施

《“十四五”中医药发展规划》背景下中医骨伤科学专业研究生的培养方案研究

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中国中医药现代远程教育 2024年第8期22卷 206-206,I0001,I0002页

作者：魏成建沈忠愿南京中医药大学附属医院骨伤科江苏南京210029

《“十四五”中医药发展规划》公布,明确提出在新时期将全力助推中医药事业振兴发展。在此背景下,我国对高素质中医药人才的需求日益增加。中医骨伤科学是传统中医药的重要组成部分,但在当前中医骨伤科学专业研究生的培养方案下,培养出... 详细信息

《“十四五”中医药发展规划》公布,明确提出在新时期将全力助推中医药事业振兴发展。在此背景下,我国对高素质中医药人才的需求日益增加。中医骨伤科学是传统中医药的重要组成部分,但在当前中医骨伤科学专业研究生的培养方案下,培养出的研究生对中医传统治疗方法掌握较少、专业素质较弱,很难满足新时代对中医骨伤科学优秀人才的需求。文章对新时代背景下,对中医骨伤科学专业研究生的培养方案进行探索,以期提高研究生专业能力,培养出高素质中医药人才。

关键词：中医骨伤科学培养方案研究生教学中医教学

基于湿热环境下的碳纤维复合材料力学性能研究及老化寿命预测

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宇航材料工艺 2024年第3期54卷 38-44页

作者：卢东滨刘欢马英杰李成建徐晋伟北京玻钢院复合材料有限公司北京102101

对T700/TDE-86碳纤维复合材料开展人工加速湿热老化试验,通过对比分析复合材料老化前后剖面形貌和物理化学特性,探讨了复合材料的吸湿扩散行为,研究了复合材料力学性能演变规律;并构建剩余强度计算模型,结合环境系数预测了湿热环境下复... 详细信息

对T700/TDE-86碳纤维复合材料开展人工加速湿热老化试验,通过对比分析复合材料老化前后剖面形貌和物理化学特性,探讨了复合材料的吸湿扩散行为,研究了复合材料力学性能演变规律;并构建剩余强度计算模型,结合环境系数预测了湿热环境下复合材料的老化寿命。结果表明:复合材料吸湿率随老化时间延长而逐渐增大直至趋于平缓,符合Fick扩散定律;相对于未进行湿热老化的复合材料,经60℃、95%RH湿热环境老化后的复合材料各力学性能均有所下降,其中剪切强度最为严重,老化64 d后其强度下降率高达25%;基于剩余强度与环境系数预估的T700/TDE-86碳纤维复合材料寿命期限约为30年,为树脂基复合材料未来服役可靠性奠定了基础。

关键词：碳纤维复合材料湿热老化力学性能寿命预测