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| 1 | 冷湖油田在溶气驱油中温度对泡沫油流的有效作用显示文摘最近几年 ,在溶解气驱油条件下 ,在重油冷采过程中 ,泡沫油流所起的作用正在被广泛地研究 ,但目前为止 ,泡沫油流在孔隙介质中的机理至今仍然不十分清楚。重油和沥青的粘度常常是高到使溶解气驱只能产出很少的一点油。然而在加拿大和委内瑞拉的几个重油油藏已经显示出很高的溶解气驱采收率 ,相信这是泡沫油流所致。在冷湖油田为注蒸汽增产作业所设计的采收率也是很高的 ,达到原始地质储量的 30 %。在冷湖因为一次采油的动能来自溶解气驱 ,这就提示我们泡沫油流是高采收率的主要原因。这篇论文的目的在于考察含有冷湖的油和甲烷气的砂样中 ,温度对泡沫油流的影响。在填砂模型中用不同温度和递减速度做了溶解气驱试验。试验结果表明 ,在等温递减试验中 ,最高采收率并没有产生在最高温处 ,相反 ,最高采收率对应着许多较低的最佳温度值。这篇论文所持的理由认为在最高温度条件下减少了天然气的溶解度并降低了泡沫性能 。 | Y.P.ZHANG 史权 | 2002 | 国外油田工程2002，18，12： | 2 |
| 2 | EFFECT OF SILICON ON PRODUCING DUCTILE IRON WITH COMPLEX STRUCTURE OF BAINITE AND MARTENSITE显示文摘This paper deals with an important role of silicon in producing ductile iron with quenched complex structure of bainite and martensite. The samples are cast in permanent mold and quenched in solution of sodium silicate. The result of thc experiments shows that the austenizing temperature should rise with increasing silicon content, otherwise much undissolved ferrite is present in the matrix after quenching. However the undissolvec ferrite can be decreased greatly or even eliminated by adding appropriate amount of ooron. On this condition, the amount of bainite gets increasing and the amount of residual austenite decreasing with the silicon cortent increasing. An approach has also been made to the mechanism of the effect of silicon on the transformation of bainite in ductile iron. The T.T.T. curves measured show that the increase of sllicon content causes the curve to shift to the left. This is quite different from the fact in steel. | Y.P.Zhang J.X.Zhu Y.Q.Wang J.Y.Su | 1998 | Acta Metallurgica Sinica(English Letters)1998，11，1： | 2 |
| 3 | 查看详情显示文摘 | Hao Y. Z Cao Y. H Sun B Li Y.P.Zhang Y.H.Xu D.S | | 0，，： | 1 |
| 4 | Engineering nanostructured Bi2WO6-TiO2 toward effective utilization of natural light in photocatalysis显示文摘 | Y.P.Zhang C.X.Pan Y.Wang | | 0，，： | 1 |
| 5 | Gain-enhanced miniaturised rectangular dielectric resonator antena显示文摘 | Y.Hwang Y.P.Zhang K.M.Luk E.K.N.Yung | | 0，，05： | 1 |
| 6 | Hybrid TiO_(2)/Ag NPs/g-C_(3)N_(4) nanocomposite coatings on TC4 titanium alloy for enhanced synergistic antibacterial effect under full spectrum light显示文摘The hybrid TiO_(2)/AgNPs/g-C_(3) N_(4) nanocomposite coatings were constructed on TC4 alloy by a hydrothermal and calcining method.TiO_(2)/AgNPs/g-C_(3) N_(4) nanocomposite coatings demonstrated excellent biocompatibility and osteogenesis compared to those of titanium alloy.The existence of trace AgNPs on the surface and interface of the heterojunction could further enhance the transfer and separation of photogenerated electron/hole pairs,which greatly improved the antibacterial performance under full spectrum light.Holes at the valence band of TiO_(2) and g-C_(3) N_(4) reacted with adsorbed H_(2) O to generate·OH,killing bacteria through photocatalytic redox reaction under light irradiation,while released AgNPs exhibited bacteriostatic efficacy with or without light.This study provides a pathway of coating modification for further improving the antibacterial properties of heterojunction coatings and maintaining the biocompatibility of matrix materials. | Xi.Rao L.Du J.J.Zhao X.D.Tan Y.X.Fang L.Q.Xu Y.P.Zhang | 2022 | Journal of Materials Science & Technology2022，，23： | 0 |
| 7 | A Method for Measuring Thermal Radiation Properties of Semi-Transparent Films显示文摘This paper presents a method(F method)for determining the optical constants and the thicknesses of semitransparent thin films.It has the following distinctive features:high precision;rapid determination of the measured quantities;wide range of convergence of solutions;capable of judging whether of not the results are reasonable,In order to meet the needs of application and engineering desigen,a family of curves designated Fig.n-F was prepared.Using it n,k,d of the thicknesses of the films determined by the F method.all important thermal radiation properties of the semi-transparent films needed in application can be obtained. | Y.P.Zhang X.S.Ge X.G.Liang | 1992 | Journal of Thermal Science1992，1，1： | 0 |
| 8 | Study on the radon removal for the water system of Jiangmen Underground Neutrino Observatory显示文摘Background The Jiangmen Underground Neutrino Observatory(JUNO),a 20-kton multipurpose underground liquid scintillator detector,was proposed with the determination of the neutrino mass hierarchy as a primary physics goal.To veto the cosmogenic background and shield the central detector from the environmental radioactivity,a multi-veto system,which consists of a water Cherenkov detector and a top tracker detector,is required.In order to keep the water quality good and remove the radon from water,an ultrapure water system,a radon removal system and radon concentration measurement system have been designed.Method The JUNO ultrapure water system was designed on the basis of the water system of the Daya Bay experiment.By installing the degassing membrane devices on the water system of JUNO prototype and Daya Bay experiment which can remove radon from water,the radon removal efficiency has been measured at the conditions of different gas–liquid phase pressures and different gas concentrations in water using the radon measurement system.Result Loading carbon dioxide into the water and increasing the inlet water pressure could help to improve the radon removal efficiency of the degassing membrane devices,and the radon concentration in water can be reduced to∼0.1 Bq/m^(3).Conclusion A reliable ultrapure water production and circulation system has been designed to keep the water quality good and to reduce the radon concentration in water for JUNO water Cherenkov detector.The radon concentration in water can satisfy the requirement of JUNO by using the Liqui-Cel degassing membrane devices. | C.Guo J.C.Liu Y.P.Zhang P.Zhang C.G.Yang Y.B.Huang W.X.Xiong H.Q.Zhang Y.T.Wei Y.Y.Gan | 2018 | Radiation Detection Technology and Methods2018，2，2： | 0 |
| 9 | The development of ^(222)Rn detectors for JUNO prototype显示文摘Background JUNO(The Jiangmen Underground Neutrino Observatory)is a multipurpose neutrino experiment,and it has very strict requirements for the detector.According to the MC simulation for JUNO experiment requirements,the Rn concentration in the water of the veto detector should be less than 0.2Bq/m^(3).In order to measure such low Rn concentration,two kinds of high-sensitivity Rn measurement systems have been developed.Method Based on the water system of JUNO prototype,two kinds of high-sensitivity Rn detectors have been developed,namely the Si-PIN Rn detector and the LS Rn detector.The Si-PIN Rn detector uses a Si-PIN photodiode to detect theαfrom ^(214)Po decay and the LS Rn detector detects the coincident signals ofβfrom ^(214)Bi decay andβfrom ^(214)Po decay.Result The background measurement of Si-PIN Rn detector and LS Rn detector is performed to estimate the sensitivity.The sensitivity of Si-PIN Rn detector is around 9.0mBq/m^(3) and the sensitivity of LS Rn detector is around 64.0Bq/m^(3).Conclusion Both of the Si-PIN Rn detector and the LS Rn detector are working well with the JUNO prototype at present,and both of them can be developed as an online Rn concentration monitoring device for JUNO veto detector. | Y.P.Zhang J.C.Liu C.Guo Y.B.Huang C.Xu M.Y.Guan C.G.Yang P.Zhang | 2018 | Radiation Detection Technology and Methods2018，2，1： | 0 |
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