浮式储存和再气化装置FSRU(Floating Storage and Regasification Unit)一般长期靠泊码头,定期从来访LNG船上卸载LNG进行存储和再气化作业。当LNG船靠泊FSRU进行卸料作业时,两船在风、浪、流的作用下会产生不同的运动。其中,横荡时,两...浮式储存和再气化装置FSRU(Floating Storage and Regasification Unit)一般长期靠泊码头,定期从来访LNG船上卸载LNG进行存储和再气化作业。当LNG船靠泊FSRU进行卸料作业时,两船在风、浪、流的作用下会产生不同的运动。其中,横荡时,两船间存在较大挤压作用。横摇时,两船甲板舷边或驾驶室舷桥可能存在碰撞。为避免以上风险,确保靠泊船只安全,FSRU外侧一般会布置护舷系统。本文将基于某MOSS罐型FSRU船对船靠泊特点,进行护舷布置设计与研究,从而确保在FSRU服务期限内船对船过驳的安全。展开更多
Deuterium oxide is hereby defined asthe water composed of 100%D and Vienna-SMOW （standard mean ocean water） oxygen,whichcontains2000.45 ppm 18O and 371 ppm 17O.SMOW-oxygen is adopted instead of 16O simply because th...Deuterium oxide is hereby defined asthe water composed of 100%D and Vienna-SMOW （standard mean ocean water） oxygen,whichcontains2000.45 ppm 18O and 371 ppm 17O.SMOW-oxygen is adopted instead of 16O simply because the absolute density of SMOW, free from dissolved atmospheric gases, at a pressure of 101 325 Pa, for the temperature range from 0° to 40℃ （IPTS-68）, in unit of kg/m3, has been tabulated by Brown and Lane as the 1976 IUPAC data.展开更多
There have appeared a few papers describing the thermal stability of the deuterates of inorganic salts such as CuSO4, BaCl2 and CaC2O4. The present investigation is directed to the synthesis of MnSO4·D2O and a co...There have appeared a few papers describing the thermal stability of the deuterates of inorganic salts such as CuSO4, BaCl2 and CaC2O4. The present investigation is directed to the synthesis of MnSO4·D2O and a comparative study on the thermal stability of this isotopic species and its protium analogue.展开更多
As a continuation of a recent research on the thermal properties of manganous sulfate monodeuterate, this paper is directed toward an investigation on the isotopic level of the prepared zinc sulfate heptadeuterate, it...As a continuation of a recent research on the thermal properties of manganous sulfate monodeuterate, this paper is directed toward an investigation on the isotopic level of the prepared zinc sulfate heptadeuterate, its thermal stability, and the activation energy of dedeuteration of the monodeuterate. Interesting results have been obtained.展开更多
With enriched antimony isotopes of 99.224 atom% ^(121)Sb and 99.528 atom% ^(123)Sb, twotracer solutions were prepared, whose antimony content was ascertained by the isotopicdilution analysis utilizing an accurately as...With enriched antimony isotopes of 99.224 atom% ^(121)Sb and 99.528 atom% ^(123)Sb, twotracer solutions were prepared, whose antimony content was ascertained by the isotopicdilution analysis utilizing an accurately assayed laboratory standard. Mass spectrometricmeasurements were made on a Finnigan MAT- 261 instrument to find the ratio of masses121 and 123. Five synthetic mixtures formed from the tracers served to determine thecorrection factor of mass discrimination. The isotopic abundances thus found for the anti-mony in the mineral stibnite together with the known nuclidic masses yield an accurateatomic weight of antimony as 121 .7575± 0 .0009.展开更多
文摘浮式储存和再气化装置FSRU(Floating Storage and Regasification Unit)一般长期靠泊码头,定期从来访LNG船上卸载LNG进行存储和再气化作业。当LNG船靠泊FSRU进行卸料作业时,两船在风、浪、流的作用下会产生不同的运动。其中,横荡时,两船间存在较大挤压作用。横摇时,两船甲板舷边或驾驶室舷桥可能存在碰撞。为避免以上风险,确保靠泊船只安全,FSRU外侧一般会布置护舷系统。本文将基于某MOSS罐型FSRU船对船靠泊特点,进行护舷布置设计与研究,从而确保在FSRU服务期限内船对船过驳的安全。
文摘Deuterium oxide is hereby defined asthe water composed of 100%D and Vienna-SMOW （standard mean ocean water） oxygen,whichcontains2000.45 ppm 18O and 371 ppm 17O.SMOW-oxygen is adopted instead of 16O simply because the absolute density of SMOW, free from dissolved atmospheric gases, at a pressure of 101 325 Pa, for the temperature range from 0° to 40℃ （IPTS-68）, in unit of kg/m3, has been tabulated by Brown and Lane as the 1976 IUPAC data.
文摘There have appeared a few papers describing the thermal stability of the deuterates of inorganic salts such as CuSO4, BaCl2 and CaC2O4. The present investigation is directed to the synthesis of MnSO4·D2O and a comparative study on the thermal stability of this isotopic species and its protium analogue.
文摘As a continuation of a recent research on the thermal properties of manganous sulfate monodeuterate, this paper is directed toward an investigation on the isotopic level of the prepared zinc sulfate heptadeuterate, its thermal stability, and the activation energy of dedeuteration of the monodeuterate. Interesting results have been obtained.
基金Project supported by the National Natural Science Foundation of China.
文摘With enriched antimony isotopes of 99.224 atom% ^(121)Sb and 99.528 atom% ^(123)Sb, twotracer solutions were prepared, whose antimony content was ascertained by the isotopicdilution analysis utilizing an accurately assayed laboratory standard. Mass spectrometricmeasurements were made on a Finnigan MAT- 261 instrument to find the ratio of masses121 and 123. Five synthetic mixtures formed from the tracers served to determine thecorrection factor of mass discrimination. The isotopic abundances thus found for the anti-mony in the mineral stibnite together with the known nuclidic masses yield an accurateatomic weight of antimony as 121 .7575± 0 .0009.
