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Towards carbon neutrality of calcium carbide-based acetylene production with sustainable biomass resources

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Green Energy & Environment 2024年第6期9卷 1068-1078页

作者： Peng Jiang Guanhan Zhao Hao Zhang Tuo Ji Liwen Mu xiaohua lu Jiahua Zhu State Key Laboratory of Materials-oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing211816China

Acetylene is produced from the reaction between calcium carbide(CaC_(2))and water,while the production of CaC_(2) generates significant amount of carbon dioxide not only because it is an energy-intensive process but also the raw material for CaC_(2) synthesis is from ***,a comprehensive biomass-to-acetylene process was constructed that integrated several units including biomass pyrolysis,oxygen-thermal CaC_(2) fabrication and calcium *** comparison,a coal-to-acetylene process was also established by using coal as *** carbon efficiency,energy efficiency and environmental impacts of the bio-based calcium carbide acetylene(BCCA)and coal-based calcium carbide acetylene(CCCA)processes were systematically ***,the environmental impacts were further evaluated by applying thermal integration at system level and energy substitution in CaC_(2) *** though the BCCA process showed lower carbon efficiency and energy efficiency than that of the CCCA process,life cycle assessment demonstrated the BCCA(1.873 kgCO_(2eq) kg-prod^(-1))a lower carbon footprint process which is 0.366 kgCO_(2eq) kg-prod^(-1) lower compared to the CCCA *** sustainable energy(biomass power)substitution in CaC_(2) furnace,an even lower GWP value of 1.377 kgCO_(2eq) kg-prod^(-1) can be achieved in BCCA *** work performed a systematic analysis on integrating biomass into industrial acetylene production,and revealed the positive role of biomass as raw material(carbon)and energy supplier.

关键词： Biomass pyrolysis CO_(2)mitigation Calcium carbide Acetylene Calcium loop

A thermodynamic view on the in-situ carbon dioxide reduction by biomass-derived hydrogen during calcium carbonate decomposition

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Chinese Journal of Chemical Engineering 2024年第4期68卷 231-240页

作者： Peng Jiang Hao Zhang Guanhan Zhao Lin Li Tuo Ji Liwen Mu xiaohua lu Jiahua Zhu State Key Laboratory of Materials-oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China

In the carbonate industry,deep decarbonization strategies are necessary to effectively remediate CO_(2).These strategies mainly include both sustainable energy supplies and the conversion of CO_(2)in downstream *** study developed a coupled process of biomass chemical looping H2 production and reductive calcination of CaCO_(3).Firstly,a mass and energy balance of the coupled process was established in Aspen *** this,process optimization and energy integration were implemented to provide optimized operation ***,a life cycle assessment was carried out to assess the carbon footprint of the coupled *** reveal that the decomposition temperature of CaCO_(3)in an H_(2)atmosphere can be reduced to 780℃(generally around 900℃),and the conversion of CO_(2)from CaCO_(3)decomposition reached 81.33%with an H2:CO ratio of 2.49 in gaseous *** optimizing systemic energy through heat integration,an energy efficiency of 86.30%was ***,the carbon footprint analysis revealed that the process with energy integration had a low global warming potential(GWP)of-2.624 kg·kg^(-1)(CO_(2)/CaO).Conclusively,this work performed a systematic analysis of introducing biomass-derived H_(2)into CaCO_(3)calcination and demonstrated the positive role of reductive calcination using green H_(2)in mitigating CO_(2)emissions within the carbonate industry.

关键词： Biomass CaCO_(3)reductive calcination Chemical looping Hydrogen production Carbon footprint Thermodynamics process

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基于中国鸟情的鸟撞适航条款充分性和适宜性

北京航空航天大学学报 2024年第9期50卷 2810-2818页

作者：陆晓华蔡景张柱国张迎春南京航空航天大学民航学院南京211106 中国民用航空上海航空器适航审定中心上海200335

以中国民航近十余年运输类飞机鸟撞信息为数据源,利用混合威布尔函数拟合鸟撞能量分布,并应用列文伯格-马夸尔特(L-M)寻优算法得到更为精确的拟合分布参数估计值。对照安全性指标,通过鸟撞能量分布函数评估出现有鸟撞适航条款对机翼而... 详细信息

以中国民航近十余年运输类飞机鸟撞信息为数据源,利用混合威布尔函数拟合鸟撞能量分布,并应用列文伯格-马夸尔特(L-M)寻优算法得到更为精确的拟合分布参数估计值。对照安全性指标,通过鸟撞能量分布函数评估出现有鸟撞适航条款对机翼而言是具有充分性和适宜性的,对尾翼而言具有充分性但过于保守。以发生灾难性事故的安全性指标为依据,中国鸟情环境下机翼结构抗鸟撞鸟体质量最低适航要求为1.218 kg;同时验证了美国联邦航空局(FAA)在美国鸟情环境下提高机翼结构抗鸟撞鸟体质量最低适航要求的愿景(约3.6 kg),证明了基于两重两参数混合威布尔分布的鸟撞冲击能量统计分析方法的有效性及结果的可信度,为中国民航自主修订相关适航条款修订提供了理论依据和实践参考。

关键词：鸟情环境适航条款鸟撞能量分布评估充分性适宜性安全性指标

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大学生学业适应性影响机制研究

河北师范大学学报（教育科学版） 2024年第5期26卷 77-82页

作者：马征潘静怡鲁小华北京交通大学心理素质教育中心北京100044 北京字节跳动科技有限公司数据与模型服务中心北京100020

从中学升入大学后,大学生的学习内容和方法面临较大调整,影响学业适应性的各类因素持续受到关注。随着大学生数量的增长和心理问题的增加,从大学生个人特质角度研究学业适应问题显得尤为重要。在大学生宿舍内,每位同学的学业适应情况因... 详细信息

从中学升入大学后,大学生的学习内容和方法面临较大调整,影响学业适应性的各类因素持续受到关注。随着大学生数量的增长和心理问题的增加,从大学生个人特质角度研究学业适应问题显得尤为重要。在大学生宿舍内,每位同学的学业适应情况因个体羞耻感水平的高低而变化。一般而言,羞耻感高的个体更容易产生社交障碍,影响人际交往,从而降低对社会支持的感知,导致适应困难。学业适应是大学生适应过程中的重要一环,通过分析羞耻感、宿舍关系、领悟社会支持与学业适应性四个变量可以看出,宿舍关系、领悟社会支持在羞耻感与大学生学业适应性之间的链式中介作用,降低羞耻感有助于改善宿舍关系,提升领悟社会支持能力,改善大学生学业适应情况。

关键词：学业适应性羞耻感宿舍关系领悟社会支持链式中介

标准化营养护理在改善结直肠癌患者化学疗法毒性反应和生活质量中的作用

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中国医药指南 2024年第23期22卷 115-117页

作者：卢小华龙岩市第二医院肿瘤内科龙岩364000

目的探讨将标准化营养护理用于改善结直肠癌患者的化学疗法(以下简称化疗)毒性反应和生活质量中的作用。方法选取101例在我院进行治疗且治疗时间为2021年2月至2023年12月的结直肠癌患者,以电脑产生随机数分组,对照组和观察组患者数量分... 详细信息

目的探讨将标准化营养护理用于改善结直肠癌患者的化学疗法(以下简称化疗)毒性反应和生活质量中的作用。方法选取101例在我院进行治疗且治疗时间为2021年2月至2023年12月的结直肠癌患者,以电脑产生随机数分组,对照组和观察组患者数量分别为50例、51例,对照组接受常规营养护理,观察组实施标准化营养护理,比较两组的化疗毒性反应、生活质量。结果护理后,观察组与对照组消化道反应1~4级、神经毒性反应1~3级、血液毒性反应1~4级比较,均P<0.05;观察组的中国癌症患者化学生物治疗生活质量量表(QLQ-CCC)评分高于对照组(P<0.05)。结论对结直肠癌化疗患者实施标准化营养护理,可提高患者的生活质量。

关键词：结直肠癌标准化营养护理化疗毒性反应

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构建更有效力国际传播体系的三个重要命题

天津大学学报（社会科学版） 2024年第5期26卷 392-398页

作者：陆小华天津大学新媒体与传播学院天津300072

党的二十届三中全会审议通过的《中共中央关于进一步全面深化改革、推进中国式现代化的决定》提出的重要改革任务“构建更有效力的国际传播体系”,是关乎全局、影响深远的重大改革举措和具有战略意义的部署。从党和国家战略全局和改革... 详细信息

党的二十届三中全会审议通过的《中共中央关于进一步全面深化改革、推进中国式现代化的决定》提出的重要改革任务“构建更有效力的国际传播体系”,是关乎全局、影响深远的重大改革举措和具有战略意义的部署。从党和国家战略全局和改革的系统布局高度理解、把握“构建更有效力的国际传播体系”,及其与其他改革举措间的战略协同关系,就需要研究、分析构建更有效力的国际传播体系所涉及的三个重要命题:以体制机制改革形成的体系力量,推进全面提升国际传播效能;以加快适应信息技术迅猛发展新形势,支撑构建更有效力的国际传播体系;以构建和有力运作更有效力的国际传播体系,助力营造中国式现代化发展的良好外部环境。文章对这3个重要命题做了系统深入的剖析和解答。

关键词：国际传播体系更有效力体制机制改革国际传播效能话语权

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算法侵害民事公益诉讼的证立及其制度展开

河南财经政法大学学报 2024年第5期39卷 100-111页

作者：陆小华陆赛赛天津大学新媒体与传播学院天津300072 天津大学法学院天津300072

数字时代,司法如何预防算法侵害的公共性是关涉算法治理成效的重要命题。通过公益诉讼制度应对算法侵害的公共性,既是构建算法多元治理体系的客观要求,也是履行司法机构公益监管的制度义务。针对算法侵害的公共性,现有的公共治理模式及... 详细信息

数字时代,司法如何预防算法侵害的公共性是关涉算法治理成效的重要命题。通过公益诉讼制度应对算法侵害的公共性,既是构建算法多元治理体系的客观要求,也是履行司法机构公益监管的制度义务。针对算法侵害的公共性,现有的公共治理模式及私人治理模式均无法对受侵害的社会公共利益提供充足保护。算法侵害民事公益诉讼制度的确立是保障司法救济有效性的题中应有之义,兼具合理性及可行性。为完善算法风险治理体系,总体架构应当明确以风险预防为中心的建构理念,确定“重大风险”的识别标准,合理界定受案范围;具体层面应当审慎地设置诉权主体,科学配置证明责任,引入禁令救济措施,以期实现维护更广泛的社会公共利益和司法救济的目标。

关键词：算法侵害算法治理司法救济风险预防禁令

A novel interfacial thermodynamic model for predicting solubility of nanoparticles coated by stabilizers

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Chinese Journal of Chemical Engineering 2021年第3期34卷 103-112页

作者： Kai Ge Yuanhui Ji xiaohua lu Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing 211189China Key Laboratory of Material and Chemical Engineering Nanjing Tech UniversityNanjing 211816China

To improve the stability of nanoparticles in aqueous solution,polymer or surfactant,*** often added in solutions during the preparation process of nanoparticles,which can induce new interfaces that influence the solubility of *** this work,a novel interfacial thermodynamic model for describing the Gibbs energy of the nanoparticles coated by stabilizers was proposed to predict the solubility of *** the developed model,the activity coefficient of nano metal system was determined by Davies model and that of nano drug system by Perturbed-Chain Statistical Associating Fluid Theory(PC-SAFT).The Gibbs energy of the interface was established as a function of molecular parameters via the application for nano metal ***,the model was further used to predict the solubility of nano drugs itraconazole,fenofibrate,and *** was found that the Gibbs energy of the interface plays an important role especially when the radius of nano metal is less than 40 nm,and the developed model can predict the solubility of nano drug with high accuracy in comparison with the experimental data as well as predict the changing trend of solubility of nano drugs that increases as the particle size ***,the stabilization mechanism of stabilizers on nano drugs was studied which provided theoretical guidance for the selection of polymer or surfactant *** findings showed that the developed model can provide a reliable prediction of the solubility of nanoparticles and help to comprehend the stabilization mechanism of the stabilizers on nano drugs with different particle sizes,which is expected to provide important information for the design of nano drugs formulations.

关键词： Nanoparticles Solubility Gibbs energy of the interface PC-SAFT Molecular parameters

Thermodynamic analysis and modification of Gibbs–Thomson equation for melting point depression of metal nanoparticles

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Chinese Journal of Chemical Engineering 2021年第3期34卷 198-205页

作者： Nanhua Wu xiaohua lu Rong An Xiaoyan Ji Division of Energy Science/Energy Engineering LuleåUniversity of Technology97187 LuleåSweden State Key Laboratory of Materials-Oriented and Chemical Engineering Nanjing Tech UniversityNanjing 211816China Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Herbert Gleiter Institute of Nanoscience Nanjing University of Science&TechnologyNanjing 210094China

Abnormal melting point depression of metal nanoparticles often occurs in heterogeneous catalytic reactions,which leads to a reduction in the stability of reactive *** study this abnormal phenomenon,the original and surface-energy modified Gibbs-Thomson equations were analyzed in this work and further modified by considering the effect of the *** results revealed that the original Gibbs-Thomson equation was not suitable for the particles with radii smaller than 10 ***,the performance of the surface-energy modified Gibbs-Thomson equation was improved,and the deviation was reduced to(-350-100)K,although further modification of the equation by considering the interfacial effect was necessary for the small particles(r<5 nm).The new model with the interfacial effect improved the model performance with a deviation of approximately-50 to 20 K,where the interfacial effect can be predicted quantitatively from the thermodynamic properties of the metal and ***,the micro-wetting parameterα_W can be used to qualitatively study the overall impact of the substrate on the melting point depression.

关键词： Melting point depression Metal nanoparticle Gibbs–Thomson equation Substrate Interfacial effect