The variation of velocity and volume transport of the Tsugaru Warm Current (TWC) is investigated based on the data of continuous and cross‐sectional current monitoring in the Tsugaru Strait. During November 1999–March 2000, the structure of the velocity transection across the strait was almost stable in which the TWC occupied the central part of the strait, while the returning flows existed in the northern and southern part of the strait, and the velocity of these flows decreases with time. The volume transport of the TWC varies from 2.1 to 1.1 Sv, with the mean value of 1.5 Sv, following the variation of the TWC. The temporal variation of the volume transport shows a linear correlation with that of the sea level difference between the Japan Sea and the Pacific Ocean. The contribution of the sea level difference to the volume transport is estimated to be roughly 70%.
The ADCP on an advanced towed fish with controllable main and tail wings, called DRAKE measured a detailed sectional structure of the Kuroshio flowing to the NE along the East China Sea shelf slope west of Okinawa. At the observation period, a countercurrent directed to the SW formed in near-bottom water on the shelf slope. The horizontal flow perpendicular to the stream axis of the Kuroshio constructed a convergence zone around the boundary between the Kuroshio and the countercurrent. An intensive upwelling with the maximum velocity of 2.8 cm s -1 was found to distribute on the shelf slope around the convergence zone. A dynamic cause of this intensive upwelling is discussed carefully.
Magnetic and crystallographic measurements have been made for the compounds RCo4M (R = Y, Nd, and Ho; M = B, Al, and Ga) to intercompare the magnetic properties of RCOJB, RCoaM (M = Al and Ga) and RCo5. The compounds RCo4B crystallize in the CeCo,B type structure, while RCo4M (M = Al and Ga) in the CaCuS type. The following main conclusions have been obtained: ( 1) the Curie temperature and the averaged Co-moment of RCo,M (R = Y, Nd, and Ho; M = B, Al, and Ga) are lower and smaller than those of RCo5, respectively, and 6i-site Co-moment in RCo$ is smaller than the 2csite Co-moment by the influence of the neighboring B-layer; (2) magnetocrystalline anisotropy of R-sublattice of RCo4B is stronger than that of RCo,, while that of RCo4A1 is remarkably weaker than that of RCo,; (3) the Co-sublattice anisotropy constants of YCo&I (M = B and Al) are 20% or less of that of YCo,; and (4) JR-o0 and Jco-cO, which are the exchange parameters of the atomic pairs in NdCo,+M (M = B and Al), have been estimated to be JR.&k N 7 K and Jc,.co/k N 200 K, where k is the Boltzman constant. 5551
Pressure effects on spin-flop transition temperature (Tsf) of Mn2−xCoxSb have been measured in order to study the nature of spin-flop phase transitions. The magnetic phase diagrams for Tsf versus concentration and for Tsf versus pressure have been determined. Tsf increases with increasing applied pressure (dTsf/dp=2.9 K/kbar for x=0.05, dTsf/dp=3.7 K/kbar for x=0.10, dTsf/dp=3.3 K/kbar for x=0.15, and dTsf/dp=2.7 K/kbar for x=0.20). On the other hand, Tsf decreases slowly with x up to ≂0.05 and increases rapidly under further increasing x at normal atmospheric pressure. On the basis of these results, the microscopic origin of the magnetic anisotropy of Mn2−xCoxSb is discussed.
Spontaneous magnetization and paramagnetic susceptibility have been measured for the Rn+1Co3n+5B2n compounds with R=Y, Gd, and Dy and n=1, 2, and 3 in the temperature range from 4.2 up to 1000 K in fields up to 20 kOe. The data on the Gd system are analyzed based on the molecular field model. The exchange field at the Gd site from the Co sublattice is estimated. The averaged exchange field at T=0 K is estimated to be 101 T for n=1, 75T for n=2, and 56 T for n=3. Paramagnetic susceptibilities are fairly well expressed by the superposition of the Co- and the Gd-sublattice contributions. Other magnetic properties of the Y and the Gd system are also reported. Only magnetic data are given for the Dy system.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.