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1

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Measurement of the differential cross sections ofe + e −→γγ ande + e −→γγγ at $$sqrt s = 55,56,56.5$$ and 57 GeV and search for unstable photino pair production (1989)

, ; Abe, K. ; Amako, K. ; [weitere]

Springer

In: Zeitschrift für Physik C: Particles and Fields. 1989; 45(2): 175-191. Published 1989 Jun 01. doi: 10.1007/bf01674449.

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Publikationsdatum: 1989-06-01

Print ISSN: 0170-9739

Digitale ISSN: 1431-5858

Thema: Physik

Publiziert von Springer

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2

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Abstracts of the Twenty-second Annual Meeting of the Japanese Society of Biometeorology, Kanazawa, 28–29 October 1983 (1985)

Hirose, F. ; Tokura, H. ; Shibuya, I. ; [weitere]

Springer

In: International Journal of Biometeorology. 1985; 29(4): 361-384. Published 1985 Dec 01. doi: 10.1007/bf02189212.

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Publikationsdatum: 1985-12-01

Print ISSN: 0020-7128

Digitale ISSN: 1432-1254

Thema: Geographie , Physik

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3

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Abstracts of the Twenty-Fourth Annual Meeting of the Japanese Society of Biometeorology, Tsukuba, 2–3 December, 1985 (1987)

Yoshino, M. ; Kawamura, T. ; Park, H. ; [weitere]

Springer

In: International Journal of Biometeorology. 1987; 31(4): 339-365. Published 1987 Dec 01. doi: 10.1007/bf02188946.

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Publikationsdatum: 1987-12-01

Print ISSN: 0020-7128

Digitale ISSN: 1432-1254

Thema: Geographie , Physik

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4

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Abstracts of the Twenty-Third Annual Meeting of the Japanese society of Biometeorology, Nagakute, 30 November–1 December 1984 (1986)

Mohri, M. ; Ohno, H. ; Yahata, T. ; [weitere]

Springer

In: International Journal of Biometeorology. 1986; 30(4): 359-385. Published 1986 Dec 01. doi: 10.1007/bf02189374.

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Publikationsdatum: 1986-12-01

Print ISSN: 0020-7128

Digitale ISSN: 1432-1254

Thema: Geographie , Physik

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5

Digitale Medien

Solidification and interfacial structure of in situ Al-4.5Cu/TiB2 composite (2000)

Chen, Z. Y. ; Chen, Y. Y. ; Shu, Q. ; [weitere]

Springer

Journal of materials science 35 (2000), S. 5605-5608

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ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: Abstract In situ particle reinforced Al-4.5Cu/TiB2 composite was fabricated with TiO2, H3BO3, Na3AlF6 powders and Al-4.5Cu alloy by reaction in melt. The composite can be directly casted into moulds to make composite parts. TiB2 particles distribute uniformly in the matrix. The average size of TiB2 particles is 0.93 μm. At the atomic scale, TiB2 is hexagonal, and exhibits hexagon or quadrilateral shape. The orientation relationships exist in the interfaces between TiB2 particle and α-Al, and between the reinforced small Al2Cu phase and α-Al in the composite. They are $$\begin{gathered} \left[ {0\bar 332} \right]_{TiB_2 } //\left[ {110} \right]_{\alpha - AI} \left\langle {01\bar 11} \right\rangle _{TiB_2 } //\left\langle {002} \right\rangle _{\alpha - AI} and\left[ {\bar 1\bar 32} \right]_{\alpha - AI} //\left[ {123} \right]_{AI_2 Cu} , \hfill \\ \left\langle {211} \right\rangle _{\alpha - AI} //\left\langle {111} \right\rangle _{AI_2 Cu} \hfill \\ \end{gathered}$$ . TiB2 particle is nucleation site for α-Al matrix growth in the composite. The interface between TiB2 particles and the matrix is clean and well bonded. No reaction product has been found through HREM observation. This is beneficial to the strength of the composite. The as-cast Al-4.5Cu/TiB2 composite exhibits mechanical excellent properties: the tensile strength is 416.7 MPa, the yield strength is 316.9 MPa, and the elongation is 3.3 pct.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1004869400097

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6

Digitale Medien

The hall coefficient of YBa2Cu3O7-x thin films with (100) orientation (1989)

Lu, Y. ; Zhao, B. R. ; Yuan, C. W. ; [weitere]

Springer

The European physical journal 74 (1989), S. 283-287

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ISSN: 1434-6036

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The Hall coefficientR H and the resistivity ρ of an (100) orientated YBa2Cu3O7-x thin film was measured. A very smallR H was obtained. The resulting carrier density is very different from the widely accepted value of the order of 1021 cm−3 for the bulk sample. The result is explained with the influence of grain boundaries and the anisotropy of the thin films.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01307874

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7

Digitale Medien

Abstracts of the Twenty-second Annual Meeting of the Japanese Society of Biometeorology, Kanazawa, 28–29 October 1983 (1985)

Hirose, F. ; Tokura, H. ; Shibuya, I. ; [weitere]

Springer

International journal of biometeorology 29 (1985), S. 361-384

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ISSN: 1432-1254

Quelle: Springer Online Journal Archives 1860-2000

Thema: Geographie , Physik

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02189212

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8

Digitale Medien

Precise excision of bacterial transposon Tn 5 in yeast (1988)

Gordenin, D. A. ; Trofimova, M. V. ; Shaburova, O. N. ; [weitere]

Springer

Molecular genetics and genomics 213 (1988), S. 388-393

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ISSN: 1617-4623

Schlagwort(e): Tn5 ; Transposon excision ; Yeast

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Summary We have demonstrated that precise excision of bacterial transposon Tn5 can occur in the yeast, Saccharomyces cerevisiae. Tn5 insertions in the yeast gene LYS2 were generated by transposon mutagenesis made in Escherichia coli by means of a λ::Tn5 vector. Nine insertions of Tn5 into the structural part of the yeast LYS2 gene situated in a shuttle epsiomal plasmid were selected. All the plasmids with a Tn5 insertion were used to transform yeast strains carrying a deletion of the entire LYS2 gene or a deletion of the part of LYS2 overlapping the point of insertion. All insertions inactivated the LYS2 gene and were able to revert with low (about 10-8) frequencies to lysine prototrophy. Restriction analysis of revertant plasmids revealed them to be indistinguishable from the original plasmid without Tn5 insertion. DNA sequencing of the regions containing the points of insertions, made for two revertants, proved that Tn5 excision was completely precise.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00339607

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9

Digitale Medien

Neutron activation studies of refractory siderophile element anomaly and other trace element patterns in boundary clay between Permian/Triassic, Changxin, China (1987)

Chai, C. F. ; Ma, S. L. ; Mao, X. Y. ; [weitere]

Springer

Journal of radioanalytical and nuclear chemistry 114 (1987), S. 293-301

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ISSN: 1588-2780

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie , Energietechnik

Notizen: Abstract Although Ir anomaly has been discovered in a number of C/T boundaries in the world, no positive results of this anomaly in Permian/Triassic (P/Tr) boundary were given. There are many well-developed P/T sections in South China. One of representative sections is located at the Baoqing quarry, Meishan Town, Changxin County, Zhejiang Province. Ir, Os, Re, Au, Pt, Cu and Mo were determined by the radiochemical procedure developed in our laboratory. (1) Besides those accessible by INAA. The results reveal that the refractory siderophile and other chalcophile elements have certain enrichment near and at the boundary layer. However, the Ir/Au and other element abundance ratios fail to accord with the extraterrestrial values. The nature of the boundary event was discussed in terms of elemental geochemistry.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02039803

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10

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Measurement of energy and charged particle emission in the central rapidity region from O+A andp+A collisions at 14.5 GeV/c per nucleon and preliminary results from Si+A collisions (1988)

Remsberg, L. P. ; Tannenbaum, M. J. ; Abbott, T. ; [weitere]

Springer

In: Zeitschrift für Physik C: Particles and Fields. 1988; 38(1-2): 35-43. Published 1988 Mar 01. doi: 10.1007/bf01574512.

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Publikationsdatum: 1988-03-01

Print ISSN: 0170-9739

Digitale ISSN: 1431-5858

Thema: Physik

Publiziert von Springer

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