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TYPICAL TWO-STAGE SEr.O-VALVES AFFECTED BY CENTr.FUGAL FOr.E

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Chinese Jour.al of Mechanical Engineer.ng 1999年第3期12卷 2-7,23页

作者： He Yunbo Jian linke Lin Tingqi

０ＩＮＴＲＯＤＵＣＴＩＯＮＥｌｅｃｔｒｏｈｙｄｒａｕｌｉｃｓｅｒｖｏｓｙｓｔｅｍｓａｒｅｗｉｄｅｌｙｕｓｅｄｉｎａｕｔｏｍａｔｉｏｎ，ｅｎｇｉｎｅｅｒｉｎｇａｎｄｐｒａｃｔｉｃｅ，ｓｕｃｈａｓｅａｒｔｈｑｕａｋｅｓｉ... 详细信息

０ＩＮＴＲＯＤＵＣＴＩＯＮＥｌｅｃｔｒｏｈｙｄｒａｕｌｉｃｓｅｒｖｏｓｙｓｔｅｍｓａｒｅｗｉｄｅｌｙｕｓｅｄｉｎａｕｔｏｍａｔｉｏｎ，ｅｎｇｉｎｅｅｒｉｎｇａｎｄｐｒａｃｔｉｃｅ，ｓｕｃｈａｓｅａｒｔｈｑｕａｋｅｓｉｍｕｌａｔｉｏｎ，ｇｅｏｔｅｃｈｎ...

关键词： Fluid dynamics Electr.hydr.ulic ser.o-valves Centr.fugal for.e Centr.fugal for.e Dir.ctly pr.por.ional Ser.o systems ELECTr.HYDr.ULIC Electr.hydr.ulic ser.o system Hydr.dynamics

Distr.bution and sour.es of polycyclic ar.matic hydr.car.ons in the water.column of Kongsfjor.en, Ar.tic

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Jour.al of Envir.nmental Sciences 2020年第11期32卷 186-193页

作者： r.ijing Li Hui Gao Zhongqiang Ji Shuaichen Jin linke Ge Humin Zong Liping Jiao Zhifeng Zhang Guangshui Na National Mar.ne Envir.nmental Monitor.ng Center Dalian 116023China Key Labor.tor. of Mar.ne Ecosystems and Biogeochemistr. Second Institute of OceanographyMinistry of Nature ResourcesHangzhou 310012China Key Labor.tor. of Ocean-Atmospher.c Chemistr. and Global Change Third Institute of OceanographyMinistry of Nature ResourcesXiamen 361005China Hainan Tr.pical Ocean Univer.ity Key Laboratory of Utilization and Conservation for Tropical Marine BioresourcesMinistry of EducationChina

Kongsfjor.en is known for.its char.cter.stic multi-layer.water.mass for.ed by the conver.ence of fr.shwater. fr.m near.y glacier. and r.ver. and saline water.fr.m the Atlantic and *** distr.bution of polycyclic ar.matic hydr.car.ons(PAHs)in the water.column of Kongsfjor.en was investigated and their.potential sour.es wer. *** total concentr.tions of 16 PAHs in the sur.ace seawater.and r.ver.water.wer. in the r.nge of 33.4-79.8 ng/L(mean 48.5 ng/L)and 2.3-201.4 ng/L(mean 126.1 ng/L),***,PAHs wer. mainly concentr.ted ar.und r.ver.estuar.es and the glacier.fr.nt in the dissolved ***,the PAHs in the par.iculate phase followed sur.ace-enr.chment and depth-depletion patter.s in most stations,with the maximum concentr.tion found at 50 m depth in the centr.l ar.a of *** compositions of PAHs in seawater.and r.ver. wer. similar.with two-r.ng and tr.cyclic PAHs compr.sing the major.ty of the dissolved and par.iculate *** found in Kongsfjor.en water. appear.d to be der.ved fr.m multiple sour.es such as petr.leum and coal *** in the bay mouth of Kongsfjor.en wer. mainly intr.duced by the West Spitsber.en Cur.ent and the Ar.tic water.,while in the inner.bay,atmospher.c deposition and local sour.es wer. the major.*** distr.bution of PAHs was mainly attr.buted to the suspended par.iculate distr.bution.

关键词： PAHs Distr.bution Sour.e Water.mass Kongsfjor.en

Ther.o-kinetic connectivity by integr.ting ther.o-kinetic cor.elation and gener.lized stability

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Jour.al of Mater.als Science & Technology 2022年第32期127卷 225-235页

作者： Yuqing He Shaojie Song Jinglian Du Haor.n Peng Zhigang Ding Huaiyu Hou linke Huang Yongchang Liu Feng Liu State Key Labor.tor. of Solidification Pr.cessing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an 710072China School of Mater.als and Chemical Engineer.ng Xi’an Technological UniversityXi’an 710021China Nano and Heter.geneous Mater.als Center School of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China State Key Lab of Hydr.ulic Engineer.ng Simulation and Safety School of Materials Science&EngineeringTianjin UniversityTianjin 300072China

Designing str.ctur.d mater.als with optimized mechanical pr.per.ies gener.lly focuses on engineer.ng micr.str.ctur.s,which ar. closely deter.ined by the pr.cessing r.utes,such as phase tr.nsfor.ations(PTs)and plastic defor.ations(PDs).Both PTs and PDs follow inher.nt tr.de-off r.lation between ther.odynamic dr.ving for.e ΔG and kinetic ener.y bar.ier.Q,i.e.,so-called ther.o-kinetic *** analyzing nucleation and gr.wth and pr.posing a conception of negative dr.ving for.e integr.ting str.in ener.y,inter.ace ener.y and any kind of ener.y that equivalently inhibits the PT itself,ΔG^(S),unified expr.ssions for.the ther.o-kinetic cor.elation and gener.lized stability(GS)wer. der.ved for.thr.e kinds of PTs,i.e.,diffusive PTs with simultaneously decr.asedΔG and incr.ased Q,diffusive PTs with simultaneously incr.asedΔG and decr.ased Q,and displacive PTs with simultaneously incr.ased ΔG and decr.ased *** leads to so-called ther.o-kinetic connectivity by integr.ting the ther.o-kinetic cor.elation and the GS,wher.,by application in typical PTs,it was clear.y shown,a cr.ter.on of high ΔG-high GS can be pr.dicted by modulating chemical dr.ving for.e,negative dr.ving for.e and kinetic ener.y bar.ier.for.diffusion or.*** ther.o-kinetic connectivity,analogous pr.cedur. for.dislocation evolution upon PDs was per.or.ed,and mater.als design in ter.s of the highΔG-high GS cr.ter.on was discussed and pr.spected.

关键词： Ther.o-kinetic cor.elation Negative dr.ving for.e Gener.lized stability Ther.o-kinetic connectivity

Wavelength and sensitivity tunable long per.od gr.tings fabr.cated in fluid-cladding micr.fiber.

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Chinese Physics B 2022年第1期31卷 299-304页

作者： Wa Jin linke Zhang Xiang Zhang Ming Xu Weihong Bi Yuefeng Qi Key Labor.tor. for.Special Fiber.and Fiber.Sensor.of Hebei Pr.vince Qin Huangdao 066004China School of Infor.ation Science and Engineer.ng Yanshan UniversityQin Huangdao 066004China

We r.por. the fabr.cation of long per.od gr.tings in fluid-cladding micr.fiber. by dir.ctly focusing a femtosecond laser.beam on the micr.fiber. sur.ace to induce per.odical modification a long one side of the micr.fiber..A long per.od gr.ting is fabr.cated in a water.cladding micr.fiber.with a diameter.of~5μm,which demonstr.tes a r.sonant attenuation of 28.53 dB at wavelength of 1588.1 nm with 10 *** water.cladding is changed to be r.fr.ctive index oil of n=1.33 and alcohol solution with concentr.tion of 5%,the r.sonance wavelength shifts to 1575.1 nm with r.sonant attenuation of 24.91 dB and 1594.1 nm with r.sonant attenuation of 35.9 dB,*** long per.od gr.ting demonstr.tes differ.nt temper.tur. sensitivities of-0.524 nm/℃,-0.767 nm/℃and-1.316 nm/℃for.water.alcohol solution and r.fr.ctive index oil cladding micr.fiber.,r.spectively,which means the alter.ble liquid cladding allows the availability of tunable wavelength and *** fluid-cladding pr.tects the micr.fiber. fr.m exter.al distur.ance and contamination and allows mor. flexibility in contr.lling the tr.nsmission pr.per.y and sensing char.cter.stics of long per.od gr.tings,which can be used as fiber.devices and sensor. for.chemical,biological,and envir.nmental applications.

关键词： fluid-cladding micr.fiber long-per.od gr.ting temper.tur.

基于行为转变理论的肺康复运动方案在肺癌化疗患者中的应用效果

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中国医药导报 2024年第6期21卷 176-180页

作者：吕利杰陈玉红叶亮吴林珂林征南京医科大学附属南京医院南京市第一医院呼吸内科江苏南京210006 南京医科大学附属南京医院南京市第一医院护理部江苏南京210006 南京医科大学护理学院南京医科大学第一附属医院护理部江苏南京210029

目的探讨基于行为转变理论的肺康复运动方案在肺癌化疗患者中的应用效果。方法选取江苏省南京市第一医院呼吸内科2022年7月至2023年3月收治的肺癌化疗患者80例,按入院时间顺序将其分为对照组和试验组,各40例。对照组予常规肺康复运动... 详细信息

目的探讨基于行为转变理论的肺康复运动方案在肺癌化疗患者中的应用效果。方法选取江苏省南京市第一医院呼吸内科2022年7月至2023年3月收治的肺癌化疗患者80例,按入院时间顺序将其分为对照组和试验组,各40例。对照组予常规肺康复运动指导,试验组予基于行为转变理论的肺康复运动指导。比较两组肺康复运动依从性评分、运动耐力及生活质量。结果干预第12周,两组运动依从性得分高于干预第4周,且试验组高于对照组,差异有统计学意义(Pr.评分时间点比较,差异有统计学意义(Pr.评分均低于本组干预前及干预第4周,干预第4周低于干预前(Pr.评分比较,差异无统计学意义(P>0.05)。干预后,两组生活质量评分高于干预前,且试验组高于对照组,差异有统计学意义(P<0.05)。结论基于行为转变理论的肺康复运动依从性干预方案,有利于提高患者运动依从性,增强运动耐力,改善患者生活质量。

关键词：依从性化疗患者肺康复行为转变理论

Distr.bution char.cter.stics and indicator.significance of Dechlor.nes in multi-matr.ces at Ny-lesund in the Ar.tic

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Jour.al of Envir.nmental Sciences 2015年第2期27卷 8-13页

作者： Guangshui Na Wei Wei Shiyao Zhou Hui Gao Xindong Ma Lina Qiu linke Ge Chenguang Bao Ziwei Yao Key Labor.tor. for.Ecological Envir.nment in Coastal Ar.as National Marine Environmental Monitoring Center r.sear.h Center.for.Eco-envir.nmental Sciences Chinese Academy of Sciences School of Chemistr. and Chemical Engineer.ng Liaoning Normal University Dalian Institute of Science & Technology School of Biological Technology Dalian Polytechnic University

In r.cent year., Dechlor.nes have been widely detected in the envir.nment ar.und the ***, under.tanding and knowledge of Dechlor.nes in r.mote r.gions, such as the Ar.tic,r.main lacking. Ther.for., the concentr.tions of 5 Dechlor.nes in sur.ace seawater. sediment,soil, moss, and dung collected fr.m Ny-lesund in the Ar.tic wer. measur.d with the concentr.tions 93 pg/L, 342, 325, 1.4, and 258 pg/g, r.spectively, which wer. much lower.than those in Asian and Eur.pean r.gions. The mean r.tios of anti-Dechlor.ne Plus（DP） to total DP（fanti） in seawater. sediment, soil, moss, dung, and atmospher.c samples wer. 0.36, 0.21, 0.18,0.27, 0.66, and 0.43, r.spectively. r.sults suggested that the main sour.e of DP in seawater.sediment, soil, and moss was long-r.nge atmospher.c tr.nspor.. However. the r.tio identified in dung was differ.nt, for.which the migr.tion behavior.of the or.anism is pr.bably the main sour.e of DP.

关键词： Dechlor.nes Ar.tic Multi-matr.ces Distr.bution char.cter.stic r.tio Sour.e analysis

船用大功率氢燃料电池的液氢供氢系统数值仿真

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北京石油化工学院学报 2024年第1期32卷 20-24页

作者：兰林柯杜文海邹玉巩宁峰聂连升北京石油化工学院机械工程学院氢能研究中心北京102617 北京海德利森科技有限公司北京102699

相较于高压气态储氢、固态储氢等储氢方式,低温液态储氢具有有效储氢密度大、运输成本低、汽化纯度高和储运压力低等优势,因此对大功率燃料电池而言是最有潜力的一种储氢方式。利用Fluent软件对某船用大功率氢燃料电池的液氢供氢系统进... 详细信息

相较于高压气态储氢、固态储氢等储氢方式,低温液态储氢具有有效储氢密度大、运输成本低、汽化纯度高和储运压力低等优势,因此对大功率燃料电池而言是最有潜力的一种储氢方式。利用Fluent软件对某船用大功率氢燃料电池的液氢供氢系统进行非定常计算,研究了使罐内液氢在给定时间内完全排出所需的最小气氢充注速度。数值模拟结果表明:在高温气氢充注到液氢罐过程中,由于热量聚集导致入口处存在局部高温,氢气进入液氢罐后沿水平方向流动,在重力与壁面作用下向下方流动,通过与罐内低温流体的对流换热作用,引起不同区域内的流体密度发生改变,从而使气氢与液氢分别产生涡旋;随着液氢罐气氢入口流速线性增加,液氢罐排空所需时间减小,但减小幅度随着入口速度的增加而降低。

关键词：液氢燃料电池数值模拟两相流动非定常流动

四逆散调控GSK-3β/A20/C/EBPβ抑制小胶质细胞激活改善抑郁模型小鼠抑郁样行为

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中国实验方剂学杂志 2024年第12期30卷 16-23页

作者：陈虹云杨东英廖回庆曾妍妍潘琳可白莎莎邓迪史亚飞张荣杨蕾广州中医药大学中药学院广州510006

目的:探讨四逆散通过调控糖原合成酶激酶-3β(GSK-3β)/肿瘤坏死因子-α诱导蛋白3(A20)/CCAAT增强子结合蛋白β(C/EBPβ)抑制小胶质细胞激活发挥抗抑郁作用。方法:将72只雄性C57/6J小鼠随机分出正常组、模型组、氟西汀组(5.0 mg·kg^(-... 详细信息

目的:探讨四逆散通过调控糖原合成酶激酶-3β(GSK-3β)/肿瘤坏死因子-α诱导蛋白3(A20)/CCAAT增强子结合蛋白β(C/EBPβ)抑制小胶质细胞激活发挥抗抑郁作用。方法:将72只雄性C57/6J小鼠随机分出正常组、模型组、氟西汀组(5.0 mg·kg^(-1))、四逆散低、中、高剂量组(4.9、9.8、19.6 g·kg^(-1)),每组12只。适应性喂养1周后,采用慢性不可预知温和应激(CUMS)建立抑郁模型,第5周开始进行药物治疗4周。第9周进行行为学实验,包括蔗糖偏好实验、旷场实验、高架十字迷宫实验和强迫游泳实验。采用蛋白免疫印迹法(Wester. blot)检测皮质白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)、一氧化氮合酶(iNOS)炎症蛋白的表达水平和GSK-3β、A20、C/EBPβ的表达水平。利用免疫荧光法检测皮质小胶质细胞的M1型极化标志物离子钙结合衔接分子1(Iba1)和巨噬细胞抗原(CD68)的荧光表达。结果:CUMS造模8周后,与正常组比较,模型组小鼠蔗糖偏好率显著降低(P<0.01),旷场实验中央区域活动显著减少(P<0.01),在高架十字迷宫实验开臂区域的活动明显减少(P<0.05),强迫游泳的不动时间显著增加(P<0.01);炎症蛋白IL-1β、IL-6、iNOS的表达水平显著升高(P<0.01),Iba1和CD68的荧光共定位的指数升高(P<0.05);GSK-3β蛋白表达水平升高(P<0.05),C/EBPβ蛋白表达水平显著升高(P<0.01)。药物干预4周后,与模型组比较,四逆散组小鼠糖水偏好率显著提高(P<0.01),旷场实验和高架十字迷宫实验中在中央区域和开臂区域的活动明显增加(P<0.05),四逆散中、高剂量组小鼠在强迫游泳实验中不动时间显著减少(P<0.01);IL-1β、IL-6、iNOS的蛋白表达水平明显下降(P<0.05),四逆散高剂量组Iba1和CD68的荧光共定位的指数明显下降(P<0.05);四逆散中、高剂量组GSK-3β、C/EBPβ的蛋白表达水平显著下降(P<0.01),A20的蛋白表达显著上调(P<0.01)。结论:四逆散抗抑郁作用与调控GSK-3β/A20/C/EBPβ蛋白的表达,抑制小胶质细胞M1型激活有关。

关键词：抑郁症慢性不可预知温和应激(CUMS) 小胶质细胞四逆散神经炎症

Pd/silicalite-1: An highly active catalyst for.the oxidative r.moval of toluene

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Jour.al of Envir.nmental Sciences 2022年第6期34卷 209-219页

作者： linke Wu Jiguang Deng Yuxi Liu Lin Jing Xiaohui Yu Xing Zhang r.yi Gao Wenbo Pei Xiuqing Hao Ali r.stegar.anah Hongxing Dai Beijing Key Labor.tor. for.Gr.en Catalysis and Separ.tion Key Laboratory of Beijing on Regional Air Pollution ControlKey Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaLaboratory of Catalysis Chemistry and NanoscienceDepartment of Environmental Chemical EngineeringSchool of Environmental and Chemical EngineeringFaculty of Environment and LifeBeijing University of TechnologyBeijing 100124China

Catalytic combustion is thought as an efficient and economic pathway to r.move volatile or.anic compounds, and its cr.tical issue is the development of high-per.or.ance catalytic mater.als. In this wor., we used the in situ synthesis method to pr.par. the silicalite-1(S-1)-suppor.ed Pd nanopar.icles(NPs). It is found that the as-pr.par.d catalysts displayed a hexagonal pr.sm mor.hology and a sur.ace ar.a of 390-440 m^(2)/g. The sample(0.28Pd/S-1-H)der.ved after.r.duction at 500°C in 10 vol% H_(2)showed the best catalytic activity for.toluene combustion(T50%= 180℃ and T90%= 189℃ at a space velocity of 40,000 m L/(g·hr., tur.over.fr.quency(TOFPd) at 160℃ = 3.46 × 10^(-3)sec^(-1), and specific r.action r.te at 160℃ = 63.8μmol/(gPd·sec)), with the appar.nt activation ener.y(41 k J/mol) obtained over.the bestper.or.ing 0.28Pd/S-1-H sample being much lower.than those(51-70 k J/mol) obtained over.the other.samples(0.28Pd/S-1-A der.ved fr.m calcination at 500℃ in air. 0.26Pd/S-1-im der.ved fr.m the impr.gnation r.ute, and 0.27Pd/ZSM-5-H pr.par.d after.r.duction at 500℃ in 10 vol% H_(2)). Fur.her.or., the 0.28Pd/S-1-H sample possessed good ther.al stability and its par.ial deactivation due to CO_(2) or.H_(2)O intr.duction was r.ver.ible, but SO_(2) addition r.sulted in an ir.ever.ible deactivation. The possible pathways of toluene oxidation over.0.28Pd/S-1-H was toluene → p-methylbenzoquinone → maleic anhydr.de, benzoic acid, benzaldehyde → car.on dioxide and water. We conclude that the good disper.ion of Pd NPs, high adsor.tion oxygen species concentr.tion, lar.e toluene adsor.tion capacity, str.ng acidity,and mor. Pd~0 species wer. r.sponsible for.the good catalytic per.or.ance of 0.28Pd/S-1-H.

关键词： Silicalite-1 Hexagonal pr.sm shape Suppor.ed palladium catalyst Volatile or.anic compound Toluene combustion