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Optimization Study on Expansion Energy Used Air-Powered Vehicle with Pneumatic-Hydraulic Transmission

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Chinese Journal of Mechanical Engineering 2018年第1期31卷 220-229页

作者： Xiang-Heng Fu mao-lin cai Yi-Xuan Wang Yan Shi School of Automation Science and Electrical Engineering Beihang University The State Key Laboratory of Fluid Power & Mechatronic Systems Zhejiang University

Pneumatic-hydraulic transmission has been developed for years. However, its dynamic properties are not good enough for application. In this paper, in order to increase the output characteristics, a late-model air-powered vehicle using expansion energy is proposed which can boost energy through a pneumatic-hydraulic transmission. The dynamic characteristics of the air-powered vehicle is modeled and verified by conducting experiment. In addition,the influence of the key parameters of the air-powered vehicle is researched for the optimization of the system performance. Through the results, the author got the conclusion that, firstly, comparison of the results of model and experiment proves the built model to be effective; secondly, input air pressure should be set according to the request of the practical loads, and range of 0.65 to 0.75 MPa can be chosen; thirdly, as a key structure parameter of the airpowered vehicle, ratio of the areas is considered to be set to approximate 8; what’s more, a bigger orifice with a limit will promote the system dynamic characteristic property, and the limit is about 3.5 mm; last but not the least, not too farther position of the rings will increase the quality of output dynamic characteristics. This paper can be a reference for system design of air-powered vehicle and dynamic improvement.

关键词： Air-powered vehicle Expansion energy Pneumatic-hydraulic transmission Output dynamic characteristics

Profiles,exposure assessment and expanded screening of PAHs and their derivatives in one petroleum refinery facility of China

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Journal of Environmental Sciences 2025年第1期147卷 550-560页

作者： Ning Wang Fengjiao Jiang lin Xu Yaqi cai School of Municipal and Environmental Engineering Shandong Jianzhu UniversityJinan 250101China Resource and Environmental Innovation Institute Shandong Jianzhu UniversityJinan 250101China State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China School of Environment Hangzhou Institute for Advanced StudyUCASHangzhou 330106China Hubei Key Laboratory of Environmental and Health Effects of Persistence Toxic Substances Institute of Environment and HealthJianghan UniversityWuhan 430056China

This study investigated environmental distribution and human exposure of polycyclic aromatic hydrocarbons(PAHs)and their derivatives in one Chinese petroleum refinery *** was found that,following with high concentrations of 16 EPA PAHs(∑Parent-PAHs)in smelting subarea of studied petroleum refinery facility,total derivatives of PAHs[named as XPAHs,including nitro PAHs(NPAHs),chlorinated PAHs(Cl-PAHs),and brominated PAHs(Br-PAHs)]in gas(mean=1.57×10^(4)ng/m^(3)),total suspended particulate(TSP)(mean=4.33×10^(3) ng/m^(3))and soil(mean=4.37×10^(3) ng/g)in this subarea had 1.76-6.19 times higher levels than those from other subareas of this facility,surrounding residential areas and reference areas,indicating that petroleum refining processes would lead apparent derivation of ***,compared with those in residential and reference areas,gas samples in the petrochemical areas had higher∑NPAH/∑PAHs(mean=2.18),but lower∑Cl-PAH/∑PAHs(mean=1.43×10^(-1))and∑Br-PAH/∑PAHs ratios(mean=7.49×10^(-2)),indicating the richer nitrification of PAHs than chlorination during petrochemical *** occupational exposure to PAHs and XPAHs in this petroleum refinery facility were 24-343 times higher than non-occupational exposure,and the ILCR(1.04×10^(-4))for petrochemical workers was considered to be potential high ***,one expanded high-resolution screening through GC Orbitrap/MS was performed for soils from petrochemical area,and another 35 PAHs were found,including alkyl-PAHs,phenyl-PAHs and other species,indicat-ing that profiles and risks of PAHs analogs in petrochemical areas deserve further expanded investigation.

关键词： Polycyclic aromatic hydrocarbons(PAHs) Derivatives Petroleum refinery Human exposure Non-targeted screening

Development of a net ozone production rate detection system based on dual-channel cavity ring-down spectroscopy

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Journal of Environmental Sciences 2025年第3期149卷 419-430页

作者： Jinzhao Tong Renzhi Hu Changjin Hu Xiaoyan Liu Haotian cai Chuan lin Liujun Zhong JiaweiWang Pinhua Xie School of Environmental Science and Optoelectronic Technology University of Science and Technology of ChinaHefei 230026China Anhui Institute of Optics and Fine Mechanics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China School of Pharmacy Anhui Medical UniversityHefei 230032China

A novel system for measuring net photochemical ozone production rates in the atmosphere based on cavity ring-down spectroscopy(OPR-CRDS)was *** system consists of two chambers(a reaction chamber and a reference chamber)and a dual-channel O_(x)-CRDS *** minimize the wall loss of O_(x)in the chambers,the inner surfaces of both chambers are coated with Teflon *** performance of the OPR-CRDS system was *** was found that even though the photolysis frequency(J value)decreased by 10%,the decrease in the P(O_(3))caused by the ultraviolet-blocking film coating was less than 3%.The two chambers had a good consistency in the mean residence time and the measurement of NO_(2)and O_(x)under the condition of no *** detection limit of the OPR-CRDS was determined to be 0.20 ppbv/*** further verify the accuracy of the system,the direct measurement values of the OPR-CRDS systemwere comparedwith the calculation results based on radical(OH,HO_(2),and RO_(2))reactions,and a good correlation was obtained between the measured and calculated ***,the developed instrument was applied to obtain the comprehensive field observations at an urban site in the Yangtze River Delta(China)for 40 days,the time series and change characteristics of the P(O_(3))were obtained directly,and the good environmental adaptability and stability of the OPR-CRDS system were *** is expected that the new instrument will be beneficial to investigations of the relationship between P(O_(3))and its precursors.

关键词： Ozone Net photochemical production rate CRDS Atmospheric chemistry

Advanced pancreatic cancer treated with camrelizumab combined with apatinib:A case report

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World Journal of Gastrointestinal Oncology 2025年第2期17卷 284-290页

作者： Yun-Hao Luo Ting He Lu lin Rong-Qiu Wang Hong-Xia cai Wen Hu Department of Critical Care Medicine Chengdu First People's HospitalChengdu 610000Sichuan ProvinceChina Department of Radiology Sichuan Second Hospital of Traditional Chinese MedicineChengdu 610000Sichuan ProvinceChina Department of Oncology Chengdu Seventh People's HospitalChengdu 610000Sichuan ProvinceChina Department of Oncology West China Tianfu HospitalSichuan UniversityChengdu 610000Sichuan ProvinceChina

BACKGROUND The 5-year survival rate for patients with pancreatic cancer(PC)is 4%-12%.Surgery is the only treatment that offers curative potential,but only 15%-20%of patients are eligible for *** is prone to recurrence and metastasis,and the antitumor effect of chemotherapy is notably *** SUMMARY Histopathological analysis of a 53-year-old female PC patient who underwent Whipple surgery revealed poorly differentiated tumor cells infiltrating nerves,lymphatics,and blood *** patient received two different first-line chemotherapy regimens consecutively;however,both regimens struggled to control disease *** this period,the patient underwent liver metastasis ablation surgery,Candida albicans liver abscess,and stereotactic body *** the addition of camrelizumab to the modified FOLFIRINOX regimen,tumor control was *** patient subsequently refused to continue chemotherapy,and the antitumor regimen was changed to a combination of camrelizumab and *** patients received a combination of immunotherapy and targeted therapy,the length of hospital stay was significantly ***,all side effects were within acceptable limits,leading to an improved quality of life and prolonged progression-free ***,the pain associated with cancer,coupled with the side effects of opioid analgesics,has led the patient to reject all available anticancer treatment *** one month after camrelizumab and apatinib were discontinued without medical authorization,the PC recurred and rapidly progressed to widespread metastasis,ultimately leading to the patient's death approximately one month *** overall survival was 2 *** Immunotherapy and targeted therapy have the potential to increase both the quality of life and survival time of PC patients,particularly those whose tumor progression is not effectively controlled by chemotherapy ***,further clinical trials a

关键词： Advanced pancreatic cancer Immunotherapy Camrelizumab Targeted therapy Apatinib Case report

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提高高职院校招聘会成功率的思考

闽西职业技术学院学报 2009年第1期11卷 61-63,106页

作者：林茂才闽西职业技术学院学工处福建龙岩364021

校园招聘会是今后一段时期内高校毕业生求职的主渠道。随着毕业生数量的迅速增加,就业压力的持续上升,许多高职院校也采取扩大校园招聘会规模或增加校园招聘会场次的办法来推介毕业生,促进广大毕业生就业。通过人职匹配,做到人尽其才,... 详细信息

校园招聘会是今后一段时期内高校毕业生求职的主渠道。随着毕业生数量的迅速增加,就业压力的持续上升,许多高职院校也采取扩大校园招聘会规模或增加校园招聘会场次的办法来推介毕业生,促进广大毕业生就业。通过人职匹配,做到人尽其才,才尽其用,可以有效提高校园招聘会的成功率,保证校园招聘会取得预期的效果。

关键词：就业指导校园招聘人职匹配理论高职院校

提升高校办公室执行力的思考——兼谈闽西职业技术学院办公室工作

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闽西职业技术学院学报 2011年第2期13卷 18-21,66页

作者：林茂才闽西职业技术学院办公室福建龙岩364021

执行力是决定一个企业、组织治理成败的重要因素,它决定着企业与组织的兴衰。高校办公室执行力的高低,反映出学校的行政管理水平,关系着各项目标任务能否顺利实现。闽西职业技术学院办公室从思想观念、队伍建设、目标任务、政务职能、... 详细信息

执行力是决定一个企业、组织治理成败的重要因素,它决定着企业与组织的兴衰。高校办公室执行力的高低,反映出学校的行政管理水平,关系着各项目标任务能否顺利实现。闽西职业技术学院办公室从思想观念、队伍建设、目标任务、政务职能、绩效评估等方面求突破,强化责任意识、团队意识、精细意识、服务意识和质量意识,切实加强办公室建设,提升执行力。

关键词：闽西职业技术学院高校办公室行政管理执行力

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浅谈高职毕业生就业思想教育工作

闽西职业技术学院学报 2006年第4期8卷 83-85页

作者：林茂才闽西职业技术学院学工处福建龙岩364021

高职高专院校必须从人才培养的目标和任务出发,充分认识就业思想教育的意义和作用,把握新形势下就业思想教育的主要内容,创新就业思想教育的理念和机制,有组织、有计划、有步骤地做好就业思想教育工作,帮助毕业生树立正确的就业思想,引... 详细信息

高职高专院校必须从人才培养的目标和任务出发,充分认识就业思想教育的意义和作用,把握新形势下就业思想教育的主要内容,创新就业思想教育的理念和机制,有组织、有计划、有步骤地做好就业思想教育工作,帮助毕业生树立正确的就业思想,引导他们走上适合的工作岗位,成为社会主义事业合格建设者和可靠接班人。

关键词：高职院校就业思想素质教育

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论离校未就业大学生的职业指导

闽西职业技术学院学报 2015年第2期17卷 78-81页

作者：林茂才闽西职业技术学院学生工作处福建龙岩364021

高等教育大众化,使高校毕业生数量逐年增加;社会转型期和产业结构调整,对人才要求不断提高;毕业生就业竞争力和就业期望值的差异,离校未就业问题日益突出。通过分析大学生离校未就业的成因,明确高校职业指导工作的现状和面临的挑战,加... 详细信息

高等教育大众化,使高校毕业生数量逐年增加;社会转型期和产业结构调整,对人才要求不断提高;毕业生就业竞争力和就业期望值的差异,离校未就业问题日益突出。通过分析大学生离校未就业的成因,明确高校职业指导工作的现状和面临的挑战,加强职业指导队伍建设和离校未就业大学生的管理,突出人职匹配和指导服务,推动离校未就业大学生的职业指导工作更上一个新台阶。

关键词：高等学校离校未就业大学生职业指导

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高校办公室精细化管理探讨

浙江工商职业技术学院学报 2010年第2期9卷 73-76页

作者：林茂才闽西职业技术学院福建龙岩364021

规范化管理是办公室工作效率和质量的保证,高校办公室必须更新理念,增强责任意识和质量意识,积极采取有效措施,建立规范、高效的学校行政管理体制和运行机制,从细微处入手,实施精细化管理,确保各项工作高效率、零失误,实现可持续发展。

关键词：高校行政管理办公室工作精细化管理