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World Journal of Gastroenterology 2004年第17期10卷 2598-2601页

作者： Guang-ShunYang Qi-GenLi jun-hualu NingYang Hai-BinZhang Xue-PingZhou EasternHepatobiliaryHospital SecondMilitaryMedicalUniversityShanghai200438China

AIM: To evaluate the immediate and long-term results in a series of patients with highly symptomatic polycystic liver disease (PLD) treated by combined hepatic resection with cystic ***: We reviewed our recent experience with a combined hepatic resection-fenestration procedure in seven highly symptomatic patients with PLD. Clinical data, liver manifestation of computed tomography (CT), and morbidity were recorded pre- and post-operation. Follow-up was made by clinical and CT examinations in all ***: Symptomatic relief and reduction in abdominal girth were obtained in all patients during an average followup period of 20.4 mo. CT scans confirmed post-resection hypertrophy of the spared liver and lack of significant cyst progression. All patients had mild to severe ascites. Two patients were complicated with pleural ***: Some highly symptomatic patients with massive PLD may benefit from combined hepatic resection and fenestration at acceptable risk. To stitch the dissected hepatic ligaments could prevent the instable remnant liver from kinking and collapsing.

关键词：肝切除术手术治疗开窗手术多囊性肝脏疾病病例报告消化系统

Isoflurane preserves energy balance in isolated hepatocytes during in vitro anoxia/reoxygenation

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World Journal of Gastroenterology 2005年第25期11卷 3920-3924页

作者： QuanLi Wei-FengYu Mai-TaoZhou XinLu Li-QunYang MingZhu Jian-GangSong jun-hualu DepartmentofAnesthesiology EasternHepatobiliarySurgeryHospitaltheSecondMilitaryMedicalUniversityShanghai200438China DepartmentofClinicalSurgery EasternHepatobiliarySurgeryHospitaltheSecondMilitaryMedicalUniversityShanghai200438China

AIM: To investigate the protective effect of isoflurane on energy balance in isolated hepatocytes during in vitro anoxia/reoxygenation, and to compare isoflurane with halothane. METHODS: Hepatocytes freshly isolated from fed rats were suspended in Krebs-Henseleit buffer, and incubated in sealed flasks under O2/CO2 or N2/CO2 (95%/5%, V/V) for 30 or 60 min, followed by 5 or 10 min of reoxygenation, with an added volatile anesthetic or not. ATP, ADP, and adenosine monophosphate in hepatocytes were determined by high performance liquid chromatography, and energy charge was calculated. RESULTS: During 30 min of anoxia, the energy charge and total adenine nudeotide steadily increased with the isoflurane dose from 0 to 2 minimum alveolar anesthetic concentration (MAC), then decreased from 2 to 3 MAC. In short incubations (30-35 min) at 1 MAC isoflurane, energy charge modestly decreased during anoxia, which was partially prevented by isoflurane and completely reversed by reoxygenation, and total adenine nudeotide did not decrease. In long incubations (60-70 min), both energy charge and total adenine nudeotide greatly decreased during anoxia, with partial and no reversal by reoxygenation, respectively. Isoflurane partly prevented decreases in both energy charge and total adenine nudeotide during anoxia and reoxygenation. In addition, 1 MAC isoflurane obviously increased ATP/ADP, which could not be changed by 1 MAC halothane. CONCLUSION: Isoflurane partially protects isolated hepatocytes against decreases in both energy charge and total adenine nudeotide during short (reversible) or long (irreversible) anoxia.

关键词： Isoflurane Hepatocytes Anoxia Energy balance

Subwavelength asymmetric Au–VO_2 nanodisk dimer for switchable directional scattering

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Chinese Physics B 2018年第11期27卷 321-326页

作者： Han-Mou Zhang Wu-Yun Shang hualu Fa-jun Xiao Jian-Lin Zhao MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information Technology School of Science Northwestern Polytechnical University Xi＇ an 710129 China

We propose an asymmetric Au–VO_2 nanodisk dimer for realizing a switchable directional scattering. Specifically, the directional scattering can be triggered on/off through controlling the phase transition of the VO_2 nanodisk from metallic to semiconductor state. More strikingly, an obvious directional scattering with the directivity of ～40 dB is achieved under the metallic state of VO_2 nanodisk. This tunable directional scattering is further explained with an interference model where the Au and VO_2 nanodisks are treated as two weakly interacting electric dipoles. The phase transition controlled scattering patterns of asymmetric Au–VO_2 nanodisk dimer are then well interpreted from the phase difference between these two dipoles.

关键词： localized surface plasmon resonance directional scattering vanadium dioxide

Characteristics and genesis of hematite in Chinese loess and paleosol sequences: Mineral genetic restriction for magnetic susceptibility as paleoclimate proxy and iron geochemistry

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Chinese Journal Of Geochemistry 2006年第B8期25卷 279-280页

作者： Tianhu CHEN Huifang XU Qiaoqin XIE jun CHEN junfeng JI hualu LU Xiaoyong WANG School of Natural Resource and Environment Hefei University of Technology Hefei 230009 China Department of Geology and Geophysics University of Wisconsin Madison WI 53706 USA Department of Geoscience Nanjing University Nanjing 210093 China Institute of Earth Environment Chinese Academy of Sciences Xi＇an 710075 China

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冲角对正弯曲叶片扩压叶栅气动性能的影响

推进技术 2003年第2期24卷 130-134页

作者：王会社袁新钟兢军王仲奇马征清华大学热能工程系北京100084 哈尔滨工业大学能源科学与工程学院黑龙江哈尔滨150001 中国华录工程公司陕西西安710065

为了研究冲角对正弯曲叶片压气机叶栅气动性能的影响,在平面叶栅低速风洞上,对具有可控扩散叶型(CDA)的直叶片,正弯曲15°和20°弯曲叶片压气机叶栅在0°,±6°和±10°冲角下进行了实验,获得了不同冲角下不同弯曲角度叶栅出口流场的能... 详细信息

为了研究冲角对正弯曲叶片压气机叶栅气动性能的影响,在平面叶栅低速风洞上,对具有可控扩散叶型(CDA)的直叶片,正弯曲15°和20°弯曲叶片压气机叶栅在0°,±6°和±10°冲角下进行了实验,获得了不同冲角下不同弯曲角度叶栅出口流场的能量损失系数和叶片表面静压系数等的分布。与直叶栅相比,叶片正弯曲后叶栅总损失在所有冲角下均得到了降低,在正冲角下,叶栅端部流动状况得到改善,在负冲角下,叶栅流道中的流动相对于直叶栅改善不明显。直叶栅在10°冲角下发生了遍布整个流道的分离流动,而正弯曲叶片的采用则削弱了流动的分离。

关键词：压气机叶片压气机叶栅叶型弯曲气动特性

Characteristics and genesis of hematite in Chinese loess and paleosol sequences: Mineral genetic restriction for magnetic susceptibility as paleoclimate proxy and iron geochemistry

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Acta Geochimica 2006年第S1期 279-280页

作者： Tianhu CHEN1, Huifang XU2, Qiaoqin XIE1, jun CHEN3, junfeng JI3, hualu LU4, Xiaoyong WANG1,4 1 School of Natural Resource and Environment, Hefei University of Technology, Hefei 230009, China 2 Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA 3 Department of Geoscience, Nanjing University, Nanjing 210093, China 4 Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China

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刚性筏板下群桩基础共同作用实用分析方法

湖南大学学报（自然科学版） 2018年第11期45卷 54-61页

作者：罗如平杨敏杨军同济大学岩土及地下工程教育部重点实验室上海200092 同济大学地下建筑与工程系上海200092 广东华路交通科技有限公司广东广州510420

为了分析实际工程中大规模桩筏基础荷载分担及沉降特性,基于桩-土-筏相互作用理论提出了在竖向荷载作用下考虑土体弹塑性的刚性筏板下群桩基础共同作用的实用分析方法.桩-土-筏相互作用包括桩-土、桩-桩、筏-土和桩-筏相互作用,土体弹... 详细信息

为了分析实际工程中大规模桩筏基础荷载分担及沉降特性,基于桩-土-筏相互作用理论提出了在竖向荷载作用下考虑土体弹塑性的刚性筏板下群桩基础共同作用的实用分析方法.桩-土-筏相互作用包括桩-土、桩-桩、筏-土和桩-筏相互作用,土体弹塑性考虑了土体模量的双曲线型变化特性.通过对不同尺寸条件下桩筏基础现场实测案例进行分析,介绍了计算过程中相应土体参数的取值方法,并基于基础沉降及桩-土荷载分担比实测和计算值对比结果,验证了该计算方法用于分析实际工程中大规模桩筏基础的合理性.同时基于某工程桩基优化分析,其计算结果表明:考虑筏板的荷载分担能显著降低桩基用量,桩数降为原设计1/3左右时,基础沉降并不会显著增加.

关键词：桩筏基础竖向荷载相互作用沉降荷载分担实用方法

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减沉桩基变形控制机理的案例分析

土木建筑与环境工程 2018年第5期40卷 34-43页

作者：杨军杨敏罗如平广东华路交通科技有限公司广州510420 同济大学土木工程学院上海200092

桩数沉降关系是按变形控制设计桩基础(减少沉降桩基础设计)的重要依据,受荷载大小、桩位布置和场地类别等多个因素共同影响。结合某工程现场实测数据,运用近似数值方法和平面应变有限元方法对2幢采用不同桩数的多层住宅桩筏基础进行计... 详细信息

桩数沉降关系是按变形控制设计桩基础(减少沉降桩基础设计)的重要依据,受荷载大小、桩位布置和场地类别等多个因素共同影响。结合某工程现场实测数据,运用近似数值方法和平面应变有限元方法对2幢采用不同桩数的多层住宅桩筏基础进行计算分析,研究不同桩间距对地基压缩变形、基础内力和土体应力应变分布的影响,对桩数减少一半时基础沉降几乎没有变化这一问题给出合理解释。结果表明,作用于基础顶面的荷载水平越低,桩侧与桩端土层可压缩性差异越小,基础沉降量对桩数变化越不敏感。对于深厚软土地基中的低承台群桩基础,按变形控制进行桩基设计,能最大程度地节约基础用桩量,可获得十分显著的经济效益。

关键词：减沉桩沉降桩数近似数值解法有限元法

单丝20 mm碳纤维含量对CFRC梁抗弯性能的影响试验

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混凝土 2023年第5期 124-127,133页

作者：游俊李峰广东华路交通科技有限公司广东广州510420 华南理工大学建筑学院广东广州510655

为了提高碳纤维增强混凝土(Carbon Fiber-Reinforced Concrete,CFRC)的动态抗弯性能,研究了低速落锤冲击作用下,单丝20 mm碳纤维的CFRC抗弯性能。试验工况设置为6种碳纤维体积分数(0、0.20%、0.25%、0.30%、0.35%、0.40%)。主要结论如下... 详细信息

为了提高碳纤维增强混凝土(Carbon Fiber-Reinforced Concrete,CFRC)的动态抗弯性能,研究了低速落锤冲击作用下,单丝20 mm碳纤维的CFRC抗弯性能。试验工况设置为6种碳纤维体积分数(0、0.20%、0.25%、0.30%、0.35%、0.40%)。主要结论如下:提出了结合化学分散剂的多级物理分散法,实现了长度为20 mm碳纤维在混凝土中以单丝态均匀分布,改善了20 mm碳纤维在混凝土中难分散的现状。当冲击速度为3 m/s时,随着碳纤维体积分数由0提高至0.40%,碳纤维体积分数为0.35%的CFRC梁断裂吸收能量最多,约为相同工况下素混凝土梁的2.3倍。长度为20 mm的碳纤维实现在混凝土的水泥相中呈单丝态均匀分散。基于本试验,相较于其他工况,碳纤维体积分数为0.35%的CFRC梁断裂耗能最多。该研究对提高CFRC梁的综合性能具有很好的实际应用价值,易于推广使用。

关键词：碳纤维增强混凝土抗弯性能碳纤维试验均匀分布断裂

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高模量改性剂的作用机理及应用研究

建筑材料学报 2021年第2期24卷 355-361页

作者：卢桂林许新权唐志赟杨军东南大学交通学院江苏南京211189 广东华路交通科技有限公司广东广州510420

以70#石油沥青、SBS改性沥青和高模量改性沥青为研究对象,通过流变试验,定量研究了高模量改性剂掺量对沥青黏弹特性的影响,并与SBS改性沥青进行了对比分析,结合荧光显微试验,研究了高模量改性剂的改性机理;基于车辙试验和动态模量试验,... 详细信息

以70#石油沥青、SBS改性沥青和高模量改性沥青为研究对象,通过流变试验,定量研究了高模量改性剂掺量对沥青黏弹特性的影响,并与SBS改性沥青进行了对比分析,结合荧光显微试验,研究了高模量改性剂的改性机理;基于车辙试验和动态模量试验,分析比较了高模量改性沥青混合料和SBS改性沥青混合料在路用性能方面的差异.结果表明:高模量改性剂在改善基质沥青的高温性能和黏弹性能方面具有良好的效果,其掺量为6.67%时改性效果优于SBS改性沥青;高模量改性剂颗粒可以在沥青中溶胀发育,形成聚合物链接,改善了沥青的黏弹特性;与SBS改性沥青混合料相比,高模量改性沥青混合料的抵御变形能力更好,在高温地区的使用性能优越.

关键词：道路工程高模量改性剂作用机理抗车辙能力