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Cespitulones A and B,Cytotoxic Diterpenoids of a New Structure Class from the Soft Coral Cespitularia taeniata

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Cespitulones A and B,Cytotoxic Diterpenoids of a New Structu...

Chemical Constituents from the Roots of Aphanamixis polystacha

第十四届全国中药和天然药物学术研讨会

作者： Yu-Chi Lin Shih-Sheng Wang Chung-Hsiung Chen yao-haur kuo Ya-Ching Shen National Taiwan University National Cheng Kung University National Sun Yat-Sen University National Research Institute of Chinese Medicine

＜正＞Members of the genus Cespitularia,along with morphologically similar Xenia species,inhabit the coral reefs along the coasts of *** interesting cnidarians have brilliant colors and their outer layers are covered with thick ***,several members of the genus Cespitularia were reported to contain a series of complex terpenoids,including

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Chemical Constituents from the Roots of Aphanamixis polystac...

Pressure generation under deformation in a large-volume press

第十四届全国中药和天然药物学术研讨会

作者： Ching-Jie Lin l-Wen Lo Ching-Te Chien yao-haur kuo Tsong-Long Hwang Ya-China Shen National Taiwan University Taiwan Forestry Research Institute National Research Institute of Chinese Medicine Ministry of Health and Welfare Chang Gung University

＜正＞The triterpene limonoids（tetranortriterpenoids）have been extensively studied due to their significant biological activities such as antifeedant,insecticidal,antitumor,and antimalarial activities,and also their interesting structures with diverse *** plant Aphanamixis polystachya（Wall.）*** is a timber tree mainly distributed in the tropical areas of Asia

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Chinese Physics B 2024年第9期33卷 622-626页

作者： Saisai Wang Xinyu Zhao kuo Hu Bingtao Feng Xuyuan Hou Yiming Zhang Shucheng Liu Yuchen Shang Zhaodong Liu Mingguang yao Bingbing Liu State Key Laboratory of Superhard Materials Synergetic Extreme Condition User FacilityCollege of PhysicsJilin UniversityChangchun 130012China College of Earth Sciences Jilin UniversityChangchun 130012China

Deformation can change the transition pathway of materials under high pressure,thus significantly affects physical and chemical properties of ***,accurate pressure calibration under deformation is challenging and thereby causes relatively large pressure uncertainties in deformation experiments,resulting in the synthesis of complex multiphase ***,pressure generations of three types of deformation assemblies were well calibrated in a Walker-type largevolume press(LVP)by electrical resistance measurements combined with finite element simulations(FESs).Hard Al_(2)O_(3) or diamond pistons in shear and uniaxial deformation assemblies significantly increase the efficiency of pressure generation compared with the conventional quasi-hydrostatic *** uniaxial deformation assembly using flat diamond pistons possesses the highest efficiency in these deformation *** finding is further confirmed by stress distribution analysis based on *** this deformation assembly,we found shear can effectively promote the transformation of C60 into diamond under high pressure and realized the synthesis of phase-pure diamond at relatively moderate pressure and temperature *** present developed techniques will help improve pressure efficiencies in LVP and explore the new physical and chemical properties of materials under deformation in both science and technology.

关键词： shear/uniaxial deformation pressure calibration finite element simulations large- volume press high pressure

激光增材制造沉淀强化镍基高温合金热裂纹研究进展

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表面技术 2024年第7期53卷 1-14页

作者：李尧寇浩南李梦阳张阔刘源虢婷张凤英宋绪丁长安大学材料科学与工程学院西安710064 长安大学道路施工技术与装备教育部重点实验室西安710064

针对沉淀强化镍基高温合金中的裂纹现象,对比了2类热裂纹(即凝固裂纹和液化裂纹)的典型特征、形成位置和条件。从枝晶生长、元素偏析、强化相析出、固态相变和残余应力应变等角度,系统综述了热裂纹的形成机理和热裂纹敏感性影响因素。... 详细信息

针对沉淀强化镍基高温合金中的裂纹现象,对比了2类热裂纹(即凝固裂纹和液化裂纹)的典型特征、形成位置和条件。从枝晶生长、元素偏析、强化相析出、固态相变和残余应力应变等角度,系统综述了热裂纹的形成机理和热裂纹敏感性影响因素。在此基础上,从合金成分调控、工艺参数优化、基板预热以及热等静压处理等方面,概述了增材制造高温合金热裂纹调控和抑制的主要措施。最后,针对激光增材制造沉淀强化镍基高温合金热裂纹研究中存在的问题,提出了进一步研究和发展的建议,为实现无裂纹镍基高温合金的增材制造提供了参考。

关键词：激光增材制造沉淀强化镍基高温合金开裂机理热裂纹敏感性裂纹抑制

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Co基赫斯勒合金研究进展

稀有金属材料与工程 2024年第5期53卷 1471-1485页

作者：许铭扬李明华张垚刘沛桥李阔王东伟于广华北京科技大学材料科学与工程学院材料物理与化学系北京100083 中国科学院纳米标准与检测重点实验室国家纳米科学中心北京100190

Co基赫斯勒合金是一类具有高度有序晶体结构的金属间化合物,其化学组成常用Co2XY表示,其中X为过渡金属元素,Y为主族元素。相比于其他材料,它具有更高的自旋极化率、更高的居里温度以及更低的阻尼因子。基于这些优良特性使得Co基赫斯勒... 详细信息

Co基赫斯勒合金是一类具有高度有序晶体结构的金属间化合物,其化学组成常用Co2XY表示,其中X为过渡金属元素,Y为主族元素。相比于其他材料,它具有更高的自旋极化率、更高的居里温度以及更低的阻尼因子。基于这些优良特性使得Co基赫斯勒合金在自旋阀、隧道结及半导体自旋场效应管等自旋电子学器件中具有巨大的应用前景。本文回顾了近年来国际上关于Co基赫斯勒合金在垂直磁各向异性和自旋轨道转矩上的研究,从合金成分、微观结构、磁性层的厚度、缓冲层的材料、氧化物层的材料、元素扩散等方面总结了垂直磁各向异性和自旋轨道转矩的影响因素。对垂直磁各向异性和自旋轨道转矩的影响因素的总结有助于更好地理解其深层物理机制以及在未来研究中的挑战与前景。

关键词： Co基赫斯勒合金垂直磁各向异性自旋轨道转矩影响因素

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浙江安吉气候生态产品总值探索和评估

气候变化研究进展 2024年第4期20卷 475-484页

作者：翟晓瑶王阔李正泉宋超辉方贺姚霞张含郁珍艳徐婵婵湖州市南浔区气象局湖州313001 浙江省气候中心杭州310051 衢州市衢江区气象局衢州324001 湖州市安吉县气象局湖州313301 宁波市北仑区气象局宁波315800

本研究探索构建气候生态产品价值核算体系,以浙江安吉为例从气候资源开发价值、气候调节服务价值、气候固碳释氧价值、气候文旅附加价值四大类目核算安吉县气候生态经济价值量和功能量。结果显示,安吉县2022年气候生态产品总值为259.08... 详细信息

本研究探索构建气候生态产品价值核算体系,以浙江安吉为例从气候资源开发价值、气候调节服务价值、气候固碳释氧价值、气候文旅附加价值四大类目核算安吉县气候生态经济价值量和功能量。结果显示,安吉县2022年气候生态产品总值为259.08亿元,约占当年国内生产总值(582.37亿元)的44.49%。其中,气候资源开发价值为13.35亿元,占气候生态产品总值的5.15%;气候调节服务价值为167.11亿元,占气候生态产品总值的64.50%;气候固碳释氧价值为33.88亿元,占气候生态产品总值的13.08%;气候文旅附加价值为44.74亿元,占气候生态产品总值的17.27%。安吉县水能资源、风能资源和光能资源潜在开发价值丰富,总功能量为281.43亿kW∙h,总值达到141.52亿元。研究表明,气候生态产品总值核算可以货币化反映安吉县的气候生态环境状态和变化,为地方绿色发展规划和适应气候变化提供评估参考。

关键词：气候生态产品总值(GEPC) 生态系统生产总值(GEP) 价值核算

温拌SBS改性再生沥青混合料的路用性能研究

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应用化工 2024年第5期53卷 1031-1035页

作者：田耀刚覃超张梦缘蒋静纪括齐琳张军长安大学材料科学与工程学院陕西西安710064 中国电建集团昆明勘测设计研究院有限公司云南昆明650051 长安大学公路养护装备国家工程实验室陕西西安710064

为研究再生SBS改性沥青混合料(RAP)掺量和温拌剂种类对温拌SBS改性再生沥青混合料的路用性能的影响,通过车辙试验、小梁弯曲试验和冻融劈裂试验分析了在RAP掺量为0,10%,30%,50%,Sasobit温拌剂掺量为3.0%和Evotherm温拌剂掺量为2.0%的温... 详细信息

为研究再生SBS改性沥青混合料(RAP)掺量和温拌剂种类对温拌SBS改性再生沥青混合料的路用性能的影响,通过车辙试验、小梁弯曲试验和冻融劈裂试验分析了在RAP掺量为0,10%,30%,50%,Sasobit温拌剂掺量为3.0%和Evotherm温拌剂掺量为2.0%的温拌SBS改性再生沥青混合料的高温稳定性能、低温抗裂性能和水稳性能,并通过灰色关联度分析RAP掺量对两种温拌再生沥青混合料路用性能的影响。结果表明,RAP的掺入可以极大地改善温拌再生沥青混合料的高温性能,但不利于其低温抗裂性能和水稳定性能。不同RAP掺量的沥青混合料对各项路用性能影响程度大小排序均为:水稳定性能<低温抗裂性能<高温稳定性能。在RAP掺量为30%时,掺入Evotherm温拌剂的再生沥青混合料的高温性能、低温抗裂性能、水稳定性能优于掺入Sasobit温拌剂的再生沥青混合料。

关键词：温拌再生沥青混合料废旧SBS改性沥青混合料路用性能温拌剂

Malignant pleural mesothelioma mimics thoracic empyema: A case report

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World Journal of Clinical Cases 2023年第35期11卷 8372-8378页

作者： Ya-Hsin yao Yen-Shou kuo Department of General Medicine Tri-Service General HospitalNational Defense Medical CenterTaipei 114202Taiwan Division of Thoracic Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei 114202Taiwan

BACKGROUND Thoracic empyema and malignant pleural mesothelioma(MPM)are distinct medical conditions with similar symptoms,including cough,chest pain,and breathing *** present a rare MPM case mimicking thoracic *** must consider MPM risks for patients exposed to building material who exhibit lobulated pleural effusions,indicating thoracic *** SUMMARY A 68-year-old retired male construction worker suffered from shortness of breath and chest tightness over 10 d,particularly during physical activity.A poor appetite and 4 kg weight loss over the past 3 wk were also *** images and laboratory data concluded a tentative impression of empyema thoracis(right).Video-assisted thoracic surgery with decortication and delobulation(right)was *** pathological report yielded an MPM *** pleural bilateral effusions and respiratory failure developed postoperatively,and the patient died three weeks after the *** Thoracic empyema and MPM are distinct medical conditions that can present similar symptoms,and video-assisted thoracic surgery facilitates an accurate ***-mimicking presentations and postoperative refractory pleural effusion may indicate a poor MPM outcome.

关键词： Thoracic empyema Malignant pleural mesothelioma Video-assisted thoracic surgery Case report

Case Report:Breast metastasis from small cell lung carcinoma

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第1期9卷 39-43页

作者： Shi-ping LUH Chih kuo Thomas Chang-yao TSAO Department of Surgery Chia-Yi Christian Hospital and Chung-Shan Medical University and HospitalTaichung 402TaiwanChina Department of Pathology Chung-Shan Medical University and HospitalTaichung 402TaiwanChina Department of Medicine Chung-Shan Medical University and HospitalTaichung 402TaiwanChina

Breast metastases from extramammary neoplasms are very rare. We presented a 66 year-old female with metastasis of small cell lung carcinoma to the breast. She presented with consolidation over the left upper lobe of her lung undetermined after endobronchial or video-assisted thoracoscopic surgery (VATS) biopsy,and this was treated effectively after antibiotic therapy at initial stage. The left breast lumps were noted 4 months later,and she underwent a modified radical mastectomy under the im-pression of primary breast carcinoma. However,the subsequent chest imaging revealed re-growing mass over the left mediastinum and hilum,and cells with the same morphological and staining features were found from specimens of transbronchial brushing and biopsy. An accurate diagnosis to distinguish a primary breast carcinoma from metastatic one is very important because the therapeutic planning and the outcome between them are different.

关键词： Small cell carcinoma Breast metastasis Lung