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Design, Analysis and Experimental Performance of a Bionic Piezoelectric Rotary Actuator

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Journal of Bionic Engineering 2017年第2期14卷 348-355页

作者： Shupeng Wang Weibin Rong Lefeng Wang zhichao pei Lining Sun State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin 150080 China

This study presents a piezoelectric rotary actuator which is equipped with a bionic driving mechanism imitating the cen- tipede foot. The configuration and the operational principle are introduced in detail. The movement model is established to analyze the motion of the actuator. We establish a set of experimental system and corresponding experiments are conducted to evaluate the characteristics of the prototype. The results indicate that the prototype can be operated stably step by step and all steps have high reproducibility. The driving resolutions in forward and backward motions are 2.31 grad and 1.83 μrad, respectively. The prototype can also output a relatively accurate circular motion and the maximum output torques in forward and backward directions are 76.4 Nmm and 70.6 Nmm, respectively. Under driving frequency of 1 Hz, the maximum angular velocities in forward and backward directions are 1029.3 grad·s^-1 and 1165 μrad·s^-1 when the driving voltage is 120 V. Under driving voltage of 60 V, the angular velocities in forward and backward motions can be up to 235100 grad·s^-1 and 153650 μrad·s^-1 when the driving frequency is 1024 Hz. We can obtain the satisfactory angular velocity by choosing a proper driving voltage and frequency for the actuator.

关键词： bionic foot piezoelectric rotary actuator centipede foot stick-slip

Facile fabrication of branched-chain carbohydrate chips for studying carbohydrate-protein interactions by QCM biosensor

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Chinese Chemical Letters 2018年第1期29卷 65-68页

作者： Yuchao Lu Siyu Song Chenxi Hou Shuang Pang Xueming Li Xiaowen Wu Chen Shao Yuxin pei zhichao pei Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Chemistry and Pharmacy Northwest A & F University Attana

A novel approach for fabricating branched-chain （BC） carbohydrate chips to study carbohydrate-protein interactions using Quartz Crystal Microbalance （QCM） biosensor was developed. This approach utilizes functional alkynyl-branch molecule modified chip surfaces, which through the terminal alkynyl group for covalent linking of unprotected azide-carbohydrates. The unprotected azide-carbohydrates were syhthesized in one-step using 2-azido-l,B-dimethylqmidazolinium as catalyst, avoiding complex chemical modifications. Additionally, the branch surface modified with the carbohydrates not only supplies more specific binding site but also reveals significant cluster effect. To exemplify the sugar cluster effect on BC carbohydrate chips, BC Galactose and Mannose chips prepared in this work were used to determine carbohydrate-lectin interactions using QCM biosensor. The results clearly showed that BC chip significantly improves the detection sensitivity compared with the straight-chain （SC） chip. More importantly, the BC galactose chip sensitivity was enhanced 40% compared with the SC galactose chip.

关键词： MultivalentBrach carbohydrate chipO CMCarbohydrate-protein interactions

基于通用热气候指数的室外热环境优化方法及应用研究

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建筑科学 2022年第5期38卷 232-237页

作者：蒋璋贾珊裴智超国家建筑工程技术研究中心北京100013 中国建筑科学研究院有限公司北京100013 北京市绿色建筑设计工程技术研究中心北京100013

室外热舒适影响室外环境的舒适性,甚至影响室内热环境。室内热舒适度评价指数用于评价室外热环境是不适用的,这是因为室外热环境较室内环境更复杂。目前,室外热舒适度评价指标可分为三类,包括基于回归分析的冷热风险指标,基于稳态传热... 详细信息

室外热舒适影响室外环境的舒适性,甚至影响室内热环境。室内热舒适度评价指数用于评价室外热环境是不适用的,这是因为室外热环境较室内环境更复杂。目前,室外热舒适度评价指标可分为三类,包括基于回归分析的冷热风险指标,基于稳态传热模型的热舒适度指标和基于动态传热模型的热舒适度指标。本文以基于动态传热模型的热舒适度指标通用热气候指数(UTCI),作为优化指标,利用Rhino+Grasshopper参数化设计平台完成室外遮阳构件参数化表皮建模,并通过关联模型、参数和约束集方式让计算机自动进行复杂的计算和寻优过程,在较短时间内得到约束集内的多个结果,完成室外热环境优化在实际工程中的应用。

关键词：室外热舒适度通用热气候指数参数化技术性能模拟优化

近断层脉冲地震动下桥梁排架墩基于保险丝的损伤控制研究

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应用基础与工程科学学报 2024年第1期32卷 223-237页

作者：石岩张智超秦洪果裴银海兰州理工大学土木工程学院甘肃兰州730050

为增强临近断层区域桥梁双柱式排架墩的横向抗震性能,基于结构保险丝理念,引入防屈曲支撑(Buckling-Restrained Brace, BRB)作为牺牲性保险丝进行抗震性能提升.针对近断层脉冲型地震动的特点,采用单一函数解析模型模拟一组以矩震级、断... 详细信息

为增强临近断层区域桥梁双柱式排架墩的横向抗震性能,基于结构保险丝理念,引入防屈曲支撑(Buckling-Restrained Brace, BRB)作为牺牲性保险丝进行抗震性能提升.针对近断层脉冲型地震动的特点,采用单一函数解析模型模拟一组以矩震级、断层距为主要参数的低频脉冲分量,并叠加强震动记录滤波后的高频分量作为研究输入地震动.以一座公路桥梁中的典型排架墩为原型,建立动力分析模型,通过非线性地震反应时程分析,系统研究了BRB布置形式(人字、单斜和肘节式)、矩震级、断层距和脉冲数对排架墩损伤控制效果及抗震性能的影响.结果表明,采用BRB作为保险丝可明显提升排架墩的抗震性能,显著降低其地震损伤;位移放大型肘节式BRB体系较传统单斜式和人字形的耗能能力更强,在小位移情况下尤为显著.

关键词：桥梁工程近断层地震动双柱式排架墩防屈曲支撑损伤控制地震响应抗震性能

Glyco-nanocarriers Based on Galac/Lactose Derivative for Targeted Drug Delivery

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Glyco-nanocarriers Based on Galac/Lactose Derivative for Tar...

A multifunctional supramolecular vesicle based on complex of cystamine dihydrochloride capped pillar[5]arene and galactose derivative for targeted drug delivery

中国化学会第三届全国糖化学会议

作者： zhichao pei Yingcheng Chang Kui Yang Yinghua Lv Shoupeng Cao Xiaowen Wu Yuchao Lu Yuxin pei College of Chemistry and Pharmacy Northwest A＆F University

Glyco-nanocarriers including nano-vesicles and nano-rods based on amphiphilic pillar[5]arene and galactose derivatives for targeted drug delivery were ***,glycolvesicles based on the host-guest complexation of pillar[5]arene and galactose derivative have been constructed,which showed GSH and pH responsiveness resulting from its ferrocenium cations or disulfide bond and ferrocenecarboxylic acid units respectively,where the cancer cells targetability was resulted from galactose ***,a novel drug delivery system based on supramolecular vesicles（TP5 G） self-assembled by the host–guest complex of tryptophan（Trp）-modified pillar[5]arene（TP5） and galactose derivative（G） has been developed,where TP5 can strongly interact with DNA in cells due to its Trp-rich *** vesicles can encapsulate DOX efficiently,and be used for controllable release in response to ***,DOX-loaded TP5 G exhibited significantly enhanced cytotoxicity compared to free DOX towards hepatoma cells through the synergistic effect of TP5 with DOX,resulting from the strong interactions between Trp-rich structure of TP5 and DNA in ***,DOX-loaded TP5 G showed unexpected ability to restore the drug sensitivity of DOX-resistant hepatoma cells（HepG2/ADR）,which suggests TP5 G as a potential drug delivery system for overcoming multidrug resistance（MDR）.Thirdly,a smart drug delivery system based on porous CeO2 nano-rods capped with galactose functionalized pillar[5]arene via host–guest interactions have been constructed,which showed GSH-responsiveness,synergistic anticancer of drugs and cancer target ability resulting from its disulphide unit,ceria properties and galactose unit,***,the CeO2 nano-rods could be used not only as a drug carrier,but also as cancer cell-killing agent itself,which enhances anticancer efficiency in a synergistic *** report provides good examples for rationale design in the construction of multifunctional glyco-nanoc

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A multifunctional supramolecular vesicle based on complex of...

基于CFD模拟的展厅空调气流组织优化设计与实践

中国化学会第三届全国糖化学会议

作者： Lan Chen Chenxi Hou Jingli Ren Yuxin pei Jiafeng Xi Yijie Hua Yuchen Lu zhichao pei Analysis Center of College of Science & Technology Hebei Agricultural University Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Chemistry and PharmacyNorthwest A&F University

A multifunctional supramolecular vesicle（CAAP5 G） based on the complex of CAAP5 and galactose derivative（G） assembled via host-guest interaction was *** Human embryonic kidney T（293 T） cells as experimental models,the cytotoxic effects of CAAP5 G was investigated to 0-50 μmol/L for 24 ***,the CAAP5 G vesicles revealed low-toxicity to 293 T cells,it was critical to designing drug ***,we have evaluated Doxorubicin hydrochloride（DOX）-loaded CAAP5 G vesicles anticancer efficiency,where DOX-loaded CAAP5 G vesicles and free DOX incubated with Human hepatocellular carcinoma cancer cell（HepG2 cells） and293 T cells for 24 h,48 h,72 *** turned out that CAAP5 G vesicles encapsulated anticancer drug（DOX） could decrease DOX side-effect on 293 T cells and increase DOX anticancer *** importantly,the cysteamine as an adjuvant chemotherapy drug was released from CAAP5 G vesicles in HepG2 cells where a higher GSH concentration *** adjuvant chemotherapy efficiency was evaluated,where free DOX and DOX-loaded CAAP5 G vesicles incubated with DOX-resistance HepG2 cells（HepG2-ADR cells） for 24,48,72 h,*** results revealed that DOX encapsulated by CAAP5 G vesicles could enhance the cytotoxicity of DOX and provide insights for designing advanced nano-carriers toward adjuvant chemotherapies.

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建设科技 2023年第15期 52-55页

作者：袁舒裴智超王少锋中国建筑科学研究院有限公司北京100013 国家建筑工程技术研究中心北京100013 北京市绿色建筑设计工程技术研究中心北京100013

会展建筑的展览空间通常建筑高度超过10米、宽度超过30米,展览空间内部无建筑隔断,此空间通常采用全空气空调系统,为保证空间空调工况的热舒适度,需要做到温度分布均匀、气流速度可控;本文结合如意湖项目会展空间形态,利用CFD模拟技术... 详细信息

会展建筑的展览空间通常建筑高度超过10米、宽度超过30米,展览空间内部无建筑隔断,此空间通常采用全空气空调系统,为保证空间空调工况的热舒适度,需要做到温度分布均匀、气流速度可控;本文结合如意湖项目会展空间形态,利用CFD模拟技术对空调气流组织进行模拟分析,通过对空间内PMV-PPD的分析,提出保证空间高舒适度的适宜送风角度等参数,为同类会展建筑空调气流组织设计提供参考和借鉴。

关键词： CFD 气流组织 PMV PPD 会展建筑

引孔插板技术在沿海滩涂区深厚淤泥层上的应用

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水利建设与管理 2020年第8期40卷 39-43页

作者：裴志超中国水利水电第六工程局有限公司辽宁沈阳110000

本文以526国道岱山段改建工程软土地基处理施工为背景,针对沿海滩涂区深厚淤泥层上进行堆载预压排水固结的难题,提出了应用引孔插板技术,并详述了其关键施工工艺流程及控制要点。此方法施工设备简单、工艺便捷,可缩短工期,节约成本,可... 详细信息

本文以526国道岱山段改建工程软土地基处理施工为背景,针对沿海滩涂区深厚淤泥层上进行堆载预压排水固结的难题,提出了应用引孔插板技术,并详述了其关键施工工艺流程及控制要点。此方法施工设备简单、工艺便捷,可缩短工期,节约成本,可为类似工程提供参考。

关键词：引孔沿海滩涂区超厚工作垫层塑料排水板

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算法逻辑下零工工作者的情绪劳动策略选择

管理学报 2024年第3期21卷 381-391页

作者：张志朋闻效仪钱智超高雪原裴嘉良中国劳动关系学院劳动关系与人力资源学院华南理工大学工商管理学院

依据工作要求-资源模型,通过分析收集到的352名零工工作者3个时点的问卷数据,探讨零工工作者感知算法评估约束对其情绪劳动策略(浅层扮演和深层扮演)的作用关系。研究结果发现,感知算法评估约束能够通过影响零工工作者的交互性心理紧张... 详细信息

依据工作要求-资源模型,通过分析收集到的352名零工工作者3个时点的问卷数据,探讨零工工作者感知算法评估约束对其情绪劳动策略(浅层扮演和深层扮演)的作用关系。研究结果发现,感知算法评估约束能够通过影响零工工作者的交互性心理紧张对其浅层扮演产生正向影响,对其深层扮演产生负向影响;在线社群支持削弱了感知算法评估约束到交互性心理紧张的正向关系;同时,也负向调节了交互性心理紧张在感知算法评估约束和两种情绪劳动策略间的中介作用。

关键词：零工工作者感知算法评估约束交互性心理紧张在线社群支持情绪劳动