A specimen of iron is uniformly magnetised by a magnetising field of500Am−1. If the magnetic induction in the specimen is0.2Wbm−2. The susceptibility nearly is View Solution We getN1andN2β−perticles per second from two specimens of a radioactive specimen , then the ratio of numbe...
F. J. BretelerDepartment of Plant TaxonomyAgricultural UniversityPostbus 8010NL‐6700 EDWageningenThe NetherlandsJohn Wiley & Sons, LtdTAXONMOLLOY B., R. BRUMMITT, P. SHORT y F. BRETELER. 1992. What is a specimen?. Taxon 41 (3): 505-507....
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Figure a shows a compression type with a centrally positioned piezoelectric element-mass-spring system mounted on a circular central pillar that is attached to the base. The resonance frequency of this structure is quite high. When the base B is linked to the test object, however, deformation...
In rock units where the sections are less complete, the time frame is longer-even as much as a million years. In marine rocks (rocks formed in seas or oceans) the record is often more complete. It is here that the earliest and some of the strongest evidence for an extraterrestrial (...
In the short-time method, the most common test, voltage is applied across the two electrodes and raised to dielectric breakdown at a uniform rate. Breakdown is an electrical burn-through puncturing the specimen or decomposition in the sample. ...
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What is a Species A species of plants or animals, as the term has been generally used by naturalists, comprises all such individuals as are so similar to each other that we may suppose them all to have proceeded from one common parentage, and so dissimilar from all others that they could...
In the examined material of each species, a code is provided for each examined specimen (e.g., ZFMK-DIP-000852020), and all the label information is found as Supplementary Material (Table S1). 2.5. Genetics Specimens were processed at the ZFMK, where lysis and PCR were performed following ...
1) A specimen or foretaste of what is to come. 样本或预示 2) To betoken or symbolize; portend. 预兆预示或象征;预兆 3) sample mean-square contingency 样本均方或然性 4) prediction with few observations 小样本预测 例句>> 5) Out-of-Sample Forecasting ...