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“双碳”目标下湖南出口贸易发展路径研究

中国商论 2024年第15期33卷 89-93页

作者：陆芷妍胡雨湖南科技学院湖南永州425199

近年来,湖南省出口贸易发展迅速,但出口产品仍以高碳产品为主,碳排放量较高。“双碳”背景下,本文选取湖南省2005—2021年的数据对碳排放与出口贸易之间的关系进行了实证分析。结果表明,在出口贸易结构方面,一般贸易和加工贸易方式都会... 详细信息

近年来,湖南省出口贸易发展迅速,但出口产品仍以高碳产品为主,碳排放量较高。“双碳”背景下,本文选取湖南省2005—2021年的数据对碳排放与出口贸易之间的关系进行了实证分析。结果表明,在出口贸易结构方面,一般贸易和加工贸易方式都会对湖南省的碳排放量带来一定的影响,但加工贸易对湖南省的碳排放量影响最大,一般贸易次之。因此,本文提出了优化出口贸易结构、推动无碳能源使用、加强国际合作推广绿色出口等路径,为湖南省出口贸易的的绿色发展提供了参考建议。

关键词：双碳出口贸易绿色发展湖南省碳排放加工贸易

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新一代轨道交通综合监控培训与仿真系统设计

无线互联科技 2024年第7期21卷 82-84页

作者：葛淼李寅陆知言国电南京自动化股份有限公司江苏南京210031 南京国电南自轨道交通工程有限公司江苏南京210031

综合监控系统作为轨道交通重要子系统之一,负责全线多个专业设备的实时监控,保证地铁的正常运营,因此综合监控系统的培训工作是重中之重。文章针对地铁运营需求,设计了一套轨道交通综合监控培训与仿真系统,其功能全面,有利于轨道交通从... 详细信息

综合监控系统作为轨道交通重要子系统之一,负责全线多个专业设备的实时监控,保证地铁的正常运营,因此综合监控系统的培训工作是重中之重。文章针对地铁运营需求,设计了一套轨道交通综合监控培训与仿真系统,其功能全面,有利于轨道交通从业人员熟悉系统,提升工作实效,提高解决突发事件的能力。

关键词：城市轨道交通综合监控培训与仿真系统

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Engineering and Application of Pillar[6]arene Functionalized Chiral Surface in Selective Adsorption of R-Adrenaline

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Chinese Journal of Chemistry 2022年第8期40卷 925-930页

作者： Ming Cheng Wen Gong Mingxiang lu Junkai Ma zhiyan lu Haibing Li Hubei Key Laboratory of Wudang Local Chinese Medicine Research Department of ChemistrySchool of PharmacyHubei University of MedicineShiyanHubei 442000China Department of Forensic Medicine Zhongnan Hospital of Wuhan UniversityNo.169 East Lake RoadWuchang DistrictWuhanHubei 430071China Key Laboratory of Pesticide and Chemical Biology(CCNU) Ministry of EducationCollege of ChemistryCentral China Normal UniversityWuhanHubei 430079China Department of Cardiology The Third People's Hospital of Hubei Province Hospital of Hubei ProvinceWuhanHubei 430030China

Chiral properties of biological surface is of importance as they dominate interactions with biomolecules(such as proteins,nucleic acids,hormones)in a living *** by this phenomenon,we designed and constructed a L-/D-N-acetyl-cysteine-pillar[6]arene functionalized Si surface(L-/D-NACP surface)for studying the influence of superficial chirality on selective adsorption of *** fabricated chiral L-/D-NACP surface with consistency in hydrophilia and elementary composition exhibited a strong mirror-symmetric circular dichroism *** the adsorption study,the contact-angle of R-adrenaline droplet on D-NACP surface was more hydrophilic from macroscopical view,and the size and quantity of R-adrenaline aggregation on D-NACP surface was larger than L-NACP surface,implying selective adsorption of R-adrenaline appeared on the D-NACP *** possible mechanism was due to the stronger host-guest interaction between D-NACP and R-adrenaline,which facilitated the selective ***,the D-NACP surface with good selectivity can be used for chiral separation of racemic *** results enhance the under-standing of hormones adsorption affected by surface chirality,and may provide some helpful inspiration for practical application of chiral surface.

关键词： R-Adrenaline Pillararene Chiral surface Molecular recognition Host-guest systems

Methylmercury chloride damage to the adult rat hippocampus cannot be detected by proton magnetic resonance spectroscopy

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Neural Regeneration Research 2014年第17期9卷 1616-1620页

作者： zhiyan lu Jinwei Wu Guangyuan Cheng Jianying Tian Zeqing lu Yongyi Bi Department of Radiology Zhongnan Hospital of Wuhan University Department of Radiology Hainan Provincial Nongken Hospital Department of Anatomy Ningxia Medical University School of Public Health University of Minnesota School of Public Health Wuhan University

Previous studies have found that methylmercury can damage hippocampal neurons and accord- ingly cause cognitive dysfunction. However, a non-invasive, safe and accurate detection method for detecting hippocampal injury has yet to be developed. This study aimed to detect methylmercury-induced damage on hippocampal tissue using proton magnetic resonance spectroscopy. Rats were given a subcutaneous injection of 4 and 2 mg/kg methylmercury into the neck for 50 consecutive days. Water maze and pathology tests confirmed that cognitive function had been impaired and that the ultrastructure of hippocampal tissue was altered after injection. The results of proton magnetic resonance spectroscopy revealed that the nitrogen-acetyl aspartate/ creatine, choline complex/creatine and myoinositol/creatine ratio in rat hippocampal tissue were unchanged. Therefore, proton magnetic resonance spectroscopy can not be used to determine structural damage in the adult rat hippocampus caused by methylmercury chloride.

关键词： nerve regeneration proton magnetic resonance spectroscopy methylmercury chloride cognitive dysfunction hippocampus behavior pathology NSFC grant neural regeneration

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热辐射模拟计算在高架火炬升级改造中的应用

广东化工 2024年第17期51卷 115-117页

作者：张霖琪张鑫潘博陆志艳于浩王昶文陈擎宇中国船舶集团有限公司第七一一研究所上海201108 华东理工大学上海200237

热辐射强度计算对于高架火炬设计有着重要的指导意义,它是周边装置安全距离及火炬高度设置的重要参考。为了研究热辐射模拟计算在高架火炬升级改造中的应用,以某厂绿色转型发展项目的高架火炬改造工程为例,基于Flaresim软件,计算分析了... 详细信息

热辐射强度计算对于高架火炬设计有着重要的指导意义,它是周边装置安全距离及火炬高度设置的重要参考。为了研究热辐射模拟计算在高架火炬升级改造中的应用,以某厂绿色转型发展项目的高架火炬改造工程为例,基于Flaresim软件,计算分析了实际项目中两套高架火炬火焰、热辐射及温度的相互影响,以指导高架火炬的完善设计。结果表明:新建火炬设计量排放对原有火炬无影响,无需对原有火炬改造。而原有火炬设计量排放对新建火炬影响较大,新建火炬塔架顶部20m需进行材质升级或设置防火措施,同时新建火炬应设计为可拆卸式,方便检修。Flaresim软件可为高架火炬升级改造及检修提供指导依据。

关键词：高架火炬热辐射强度 Flaresim软件塔架检修

Quantitative evaluation of adsorbed and free water in deep shales:a case study on the Wufeng-Longmaxi Formations from the luzhou area,southern Sichuan Basin,China

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Frontiers of Earth Science 2024年第2期18卷 336-346页

作者： Shengxian ZHAO Yongyang LIU Shuangfang lu Shuaihu LIU Wenbiao LI zhiyan ZHOU Yashuo WANG Zhaojing SONG Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China School of Geosciences China University of Petroleum(East China)Qingdao 266580China Shale Gas Research Institute of PetroChina Southwest Oil&Gasfield Company Chengdu 610051China Sanya Offshore Oil&Gas Research Institute Northeast Petroleum UniversitySanya 572025China

Deep shale gas reservoirs commonly contain connate water, which affects the enrichment and migration of shale gas and has attracted the attention of many scholars. It is significant to quantitatively estimate the amounts of adsorbed and free water in shale matrix pores, considering the different impacts of pore water (adsorbed water and free water) on shale gas. In this paper, pore water in six deep shale samples from the Wufeng-Longmaxi Formations in the luzhou area, southern Sichuan Basin, China, was quantitatively evaluated by saturation-centrifugation experiments. Further, the impact of shale material composition and microstructure on the pore water occurrence was analyzed. The results show that amounts of adsorbed and free water are respectively 1.7967–9.8218 mg/g (mean 6.4501 mg/g) and 9.5511–19.802 mg/g (mean 13.9541 mg/g) under the experimental conditions (30℃, distilled water). The ratio of adsorbed water to total water is 15.83%–42.61% (mean 30.45%). The amounts of adsorbed and free water are related to the pore microstructure and material compositions of shale. The specific surface area of shale controls the amount of adsorbed water, and the pore volume controls the amount of free water;organic pores developed in shale solid asphalt contribute specific surface area and pore volume, and inorganic pores developed in clay mineral contribute pore volume. Therefore, the pores of shale solid asphalt accumulate the adsorbed water and free water, and the pores of clay minerals mainly accumulate the free water.

关键词： deep shales pore water adsorbed amount free amount

艾滋病进行性多灶性脑白质病的影像学表现及分期

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中华放射学杂志 2020年第8期54卷 759-762页

作者：李航龚晓明鲁植艳武汉大学中南医院影像科 430071 武汉大学口腔医院放射科 430079

目的探讨艾滋病患者进行性多灶性脑白质病(PML)的典型MRI特点及各期影像学表现,为临床诊断、评估和分期提供依据。方法回顾性分析2016年1月至2018年4月在武汉大学中南医院住院11例艾滋病合并PML的患者的临床及MRI资料,其中5例行多次MRI... 详细信息

目的探讨艾滋病患者进行性多灶性脑白质病(PML)的典型MRI特点及各期影像学表现,为临床诊断、评估和分期提供依据。方法回顾性分析2016年1月至2018年4月在武汉大学中南医院住院11例艾滋病合并PML的患者的临床及MRI资料,其中5例行多次MRI检查,共计25次MRI检查。重点观察病灶的分布、形态、信号特征,对比多次MRI检查中病变的变化,并对25次MRI结果进行影像分期。结果典型MRI表现为双侧大脑不对称的多灶性脑白质病变,顶额叶最常见,呈扇形T1高信号,T2低信号,液体衰减反转恢复序列高信号,无明显占位效应,增强扫描一般不强化。进展期多灶性脑白质病变扩大融合呈大片状,并逐渐累及深部脑白质,部分可合并深部脑灰质及小脑病变。病变内出现坏死而信号不均。周围新发病变呈明显扩散受限,表现为不完整的扩散加权成像高信号环,相应表观扩散系数值减低。晚期病变以坏死为主,周围伴局灶性脑萎缩。结论PML具有一定特征性的MRI表现及各期影像学特点,MRI可以帮助临床进行诊断、评估和分期。

关键词：脑白质病,进行性多灶性获得性免疫缺陷综合征磁共振成像诊断分期

Comprehensive Evaluation of Flower Border Application Value of New and Superior Plants in Hefei Area

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Journal of Landscape Research 2024年第2期16卷 69-71,76页

作者： MENG Yi ZHAO zhiyan LIANG Tingwu lu Zhaoliang Anhui Xinhua University HefeiAnhui 230088China

An analytic hierarchy process(AHP)was employed to assess the applicability of 18 new and superior varieties of flowers in Hefei City flower border applications.A total of 12 indicators were selected from three distinct aspects of adaptability,ornamental characteristics and use traits,in order to establish a comprehensive evaluation *** results demonstrate that grade I(J≥2.685)exhibits excellent application value,encompassing six species of plants,such asHydrangeamacrophylla‘Endless Summer’;grade II(2.684≤J≤2.420)is also of notable application value,encompassing five species of plants,such asCallistemonrigidus;grade III(2.419≤J≤2.615)is of average application value,including five species of plants,such asCrocosmiacrocosmiflora;grade IV(J≤2.16)is of relatively poor application *** evaluation results may be utilized as a theoretical reference for the promotion of new and superior varieties in the flower border of Hefei.

关键词： Analytic hierarchy process(AHP) New and superior variety Application value Comprehensive evaluation

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NTO晶体空穴缺陷对热分解机理的影响

高等学校化学学报 2023年第8期44卷 97-106页

作者：宁丽媛李丽洁陈锟金韶华鲁志艳北京理工大学材料学院北京100081 甘肃银光化学工业集团有限公司白银730900

为了研究晶体缺陷对3-硝基-1,2,4-三唑-5-酮(NTO)热分解过程的影响,构建了内含256个NTO分子的完美晶体模型及分别含有0.78%,1.17%,2.34%,3.13%和5.10%空穴缺陷的晶体模型,分别计算了1500 K下6种模型的势能、产物变化等,分析了反应初始... 详细信息

为了研究晶体缺陷对3-硝基-1,2,4-三唑-5-酮(NTO)热分解过程的影响,构建了内含256个NTO分子的完美晶体模型及分别含有0.78%,1.17%,2.34%,3.13%和5.10%空穴缺陷的晶体模型,分别计算了1500 K下6种模型的势能、产物变化等,分析了反应初始路径并计算了热分解反应速率.结果表明,在1500 K条件下,NTO初始分解反应包含NTO聚集产生团簇、C—NO_(2)键断裂脱硝基、分子间质子转移导致的开环反应和环断裂反应(包括C3—N4,N1—C5键的断裂和C3—N4,N1—N2键的断裂)4种类型.在0.78%~2.34%空穴浓度范围内,随着缺陷浓度增加,4种初始反应发生频次增加,质子化反应提前,环断裂反应延后.当缺陷浓度超过2.34%时,空穴的存在导致晶体塌陷,4种初始反应频次降低,复杂反应频次增加.空穴缺陷的存在使整体热分解进程加快.

关键词： 3-硝基-1,2,4-三唑-5-酮分子反应动力学热分解晶体缺陷热安全性