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Volume 16, Issue 4
Displaying 1-49 of 49 articles from this issue
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Hisashi Yamaguchi1961 Volume 16 Issue 4 Pages 583-592
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAngular distributions of protons from the alpha particle bombardment have been obtained for the following transitions, corresponding to discrete states of the residual nuclei: B10(α, p)C13 ground at bombarding energies 27.5 and 33.1 MeV; N14(α, p)O17 ground, first, second, third at bombarding energies 26.8, 28.1 and 33.3 MeV; O16(α, p)F19 ground to second (unresolved), third to fifth (unresolved), Sixth at bombarding energies 26.7 and 33.1 MeV; and Ne20(α, p)Na23 ground and first (unresolved), second to sixth (unresolved) at bombarding energy 26.9 MeV. These angular distributions show the so-called diffraction patterns and some of them are interpreted with the aid of predictions of the direct interaction theory. However, some deviations from the predictions of the direct interaction theory exist and suggest the effect of other nuclear reaction processes.View full abstractDownload PDF (1100K) -
Haruko Ohmura, Hiroyasu Ejiri, Yutaka Nakajima, Kinuko Horie, Kiichi E ...1961 Volume 16 Issue 4 Pages 593-597
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe reactions 28Si(p, γ)29P, 29Si(p, γ)30P and 30Si(p, γ)31P have been studied in the region of proton energy from 300 kev to 1700 kev. We have found in the reaction 29Si(p, γ)30P two new resonances at proton energies 1307.5±3 kev and 1331.5±3 kev, and in the reaction 30Si(p, γ)31P nine new resonances at proton energies 1094, 1179.5, 1209.5, 1290.5, 1300, 1302.5, 1324.5, 1394.5 and 1403 kev with the errors of ±3 kev. No definite resonant level has been observed in the reaction 28Si(p, γ)29P in the range of proton energy between 570 kev and 1400 kev.View full abstractDownload PDF (580K) -
Naoyuki Takano1961 Volume 16 Issue 4 Pages 598-604
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSAngular distributions and excitation functions of protons from the reaction Mg25 (d, p)Mg26 leading to the 1.83– and 2.97– MeV state of Mg26, have been in vestigated in the deuteron energy range from 1.55– to 3.00– MeV. The yield of the protons leading to the ground state were so small that this group was not measured. The results of angular distributions were compared with the deuteron stripping theory, and a qualitative agreement for the second excited state group at the deuteron energies above 2.5 MeV, was obtained in the forward directions, but not for the first excited state group and also in the backward directions for each groups.
The angular distributions of the first excited state group at the deuteron energies above 2.44 MeV, could be fitted to Bhatia’s formula with two ln-values of 0 and 2. Both angular distributions include considerably isotropic part, and show a competition between the deuteron stripping process and the compound nucleus formation. Also, the results of excitation functions for total cross section were compared with the statistical theory and a fairly good agreement was obtained with the interaction radius of (1.21+1.3·A1⁄3)×10−13 cm. Furthermore, a considerably small yield of this reaction seems to show that Coulomb effects play an important role in this lower energy range.View full abstractDownload PDF (760K) -
Sh\={u}ji Fukui1961 Volume 16 Issue 4 Pages 604-615
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe lateral distribution of electrons and also of the mean energy of extensive air showers (EAS) were observed with a detector array composed of 14 scintillation detectors, 15 \v{C}erenkov detectors, an arrival direction detector and a neon hodoscope. In particular the precise structure near the axes could be detected by the neon hodoscope. Each EAS was specified by various parameters, that is, the lateral distributions of electrons and energy flow, μ-mesons, and nuclear active component, and it was found that the structure of the EAS thus observed are different from case to case.
Near the axis the lateral distributions of electrons are rather flat and varied gradually from r−0.4 to r−1.0 according to the distance from the axis, up to a few meters. The slope of the distribution between 5 m–50 m distance from the shower axis is well fitted by the predicted one from the Nishimura-Kamata theory, adjusting the value of the s-parameter. The observed lateral distribution of mean energy of electrons is expressed by E=7.5×108×r−0.7±0.1 ev in the region from the axis to 7 m.
The probable influences on the structure near the region the axis are discussed.View full abstractDownload PDF (1780K) -
Lesser Blum1961 Volume 16 Issue 4 Pages 616-620
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSBy means of a time-dependent perturbation procedure similar to that developed by Prigogine, the transport equation for a particle in a Bose-Einstein medium is obtained. This equation shows also a non local character.View full abstractDownload PDF (468K) -
Nobuhiko Saitô1961 Volume 16 Issue 4 Pages 621-626
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA quantum statistical mechanical proof of the equivalence of adiabatic and isolated susceptibilities in large systems is given by Broer’s method using a Gibbs relation. Further a brief mention is made of the susceptibilities in non-equilibrium cases.View full abstractDownload PDF (548K) -
Saburo Koba1961 Volume 16 Issue 4 Pages 627-632
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe convex-core model of molecules, which has been effective for discussing thermodynamic properties of polyatomic gases, is applied to the crystals of benzene and ethylene as a continuation of a previous article of the same title, in which crystals of methane, carbon dioxide, and nitrogen were treated. By use of model parameters determined from the second virial coefficients, cohesive energies and lattice constants are calculated. When we neglect zero-point energies, potential non-additivities, and electric multipole interactions, then the calculated cohesive energies are close to the observed values for benzene and 16% higher for ethylene. The calculated lattice constants agree well with observed ones in both cases. Stability of the benzene crystal is discussed, but the conclusions are not as definite as in the case of carbon dioxide.View full abstractDownload PDF (640K) -
Terutosi Murakami1961 Volume 16 Issue 4 Pages 633-654
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe balance equations and the fluxes of thermodynamical variables are obtained on the basis of the modified Boltzmann equation for a multicomponent rigid-sphere gas. The kinetic expression of entropy balance is obtained in terms of the H-theorem, the correction to the entropy due to imperfectness of the gas being added. The correction is calculated from the equation of state, which is derived from the momentum transport equation. The entropy balance is also formulated thermodynamically with the aid of the Gibbs relation. By the use of these two expressions a variational problem, concerning the entropy production rate can be set up. The solution of this problem leads to the first approximation equation for singlet distribution function, which is identical with Enskog’s one apart from the terms independent of the energy dissipation.View full abstractDownload PDF (1856K) -
Sh\={o}tar\={o} Tobisawa1961 Volume 16 Issue 4 Pages 654-657
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSMagnetic susceptibilities of crushed samples of KClO3, KBrO3 and KIO3 were measured with a recording magnetic balance which was operated by the Faraday method. The temperature was elevated at a constant rate, 250°C per hour. It was found that, being heated, KClO3 showed irregular paramagnetic susceptibilities in the solid or liquid state, before the evolution of oxygen gas at 500°C. A possible explanation for the irregular paramagnetic behaviors is suggested.
On the contrary, KBrO3 and KIO3 showed the diamagnetic susceptibilities, which were independent of temperature below the temperatures of the evolution of oxygen gas, 370° and 550°C, respectively.View full abstractDownload PDF (500K) -
Sanemi Sonoike, Kazuo Akimoto1961 Volume 16 Issue 4 Pages 658-664
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSLuminescences of silver chloride crystals doped with CdCl2 and FeCl3 are measured spectroscopically at low temperatures. Effects of auxiliary infrared light on them and on photoconductivities are also measured. Cd ions change the normal luminescence of silver chloride of maximum at about 485 mμ to longer wavelength one of 545 mμ at low temperatures. When the latter luminescence is thermally quenched, the usual maximum of 485 mμ recovers and then it is also thermally quenched. The infrared light enhances the luminescence of 545 mμ and quenched that of 485 mμ. This quenching is drastic when Fe ions are added. The photoconductivity is enhanced by the infrared light in Cd doped crystals and almost not quenched in Fe doped crystals. An energy band model is given to explain the experimental results.View full abstractDownload PDF (852K) -
Yosio Hiki1961 Volume 16 Issue 4 Pages 664-670
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSInternal friction of twenty six specimens of synthetic quartz was measured at room temperature using the composite oscillator method. Specimens were cylinders, axes of which lay in the crystallographic YZ-plane and made various angles extending from −35° to +40° with the Y-axis. Synthetic quartz had usually smaller values of the internal friction than natural quartz. The internal friction of specimens parallel or nearly parallel to the Y-axis was almost independent of the strain amplitude, while that of specimens inclined to the axis at high angles showed noticeable amplitude-dependence. The orientation-dependence of the values of the internal friction could be well explained by the theory of dislocation damping. The dislocation density in synthetic quartz was estimated to be 102–103 cm −2, being about one hundredth of the density in natural crystals. Effect of X-irradiation on the internal friction of quartz was also studied for both synthetic and natural ones.View full abstractDownload PDF (952K) -
Atsushi Okazaki, Yasutaka Suemune1961 Volume 16 Issue 4 Pages 671-675
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe crystal structures of the antiferromagnets KMnF3, KFeF3 KCoF3, KNiF3 and KCuF3 have been determined above and below their Néel temperatures (TN) by X-ray diffraction using single crystals. At room temperature (above TN) the structures of these compounds are of the ideal perovskite type (cubic) except for that of KCuF3 which crystallizes as a tetragonal modification (a>c) of the perovskite type. At 78°K (below TN) the lattice symmetries of KMnF3, KFeF3 and KCoF3 are monoclinic, rhombohedral (α<90°) and tetragonal (a>c), respectively, while KNiF3 and KCuF3 retain their own symmetries at room temperature. The lattice constants have been determined between these temperatures and their changes near the transition temperature were closely followed. This temperature region was extended up to 670°K for KCuF3.View full abstractDownload PDF (632K) -
Ry\={o}ji Suganuma, Toshiho Yoshida, Yoshibumi Fujiki1961 Volume 16 Issue 4 Pages 676-687
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe intermetallic diffusion was studied by electron and X-ray diffraction and electrical resistance measurement on vacuum deposited thin bimetallic films of Bi and Sb. The formation of triple-layer, which consisted of two outer layers of Bi and Sb and the intermediate layer of solid solution of the definite composition, was observed in the course of heating in vacuum. Such an anomalous diffusion could not be expected from a usual diffusion couple of bulk specimens. It was found that the degree of such a triple-layer formation depended on the kind and deposition rates of secondary deposits, and the maximum thickness of the intermediate layer attaind by diffusion was confined to a certain limiting value. The defectiveness of films was deduced from electrical resistance measurements, the results of which were related to the triple-layer formation. Tentative explanation and discussions for were proposed, assuming the existence of some strained intermediate layer of certain thickness where the diffusion rapidly took place.View full abstractDownload PDF (4288K) -
Yoshitaka Furukawa1961 Volume 16 Issue 4 Pages 687-694
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSExperimental studies were made on electrical resistivity, Hall coefficient and magnetoresistance of As- Sb- and (As+Sb)-doped germanium in the election concentration range of (1018∼3×1019 cm−3). The mobility difference between As- and Sb-doped germanium has been observed at room temperature. This difference seems to be related with the difference in the ionization energy of group V elements. From the present experiment, it has been concluded that in heavily doped germanium, interaction between electron and ionized impurity should be treated as short range force instead of Coulomb force owing to the fairly large screening effect, and as the result the nature of the core of impurity influences directly upon the impurity scattering.View full abstractDownload PDF (804K) -
Yasaburo Yokozawa, Yukio Kazumata1961 Volume 16 Issue 4 Pages 694-700
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe paramagnetic resonance absorption of Mn++ ions associated with the impurities of fluorine or divalent anions has been investigated in the single crystals of NaCl and LiCl. A resolved fine structure was observed in a “not quenched crystal” and it did not fade into a broad single line in contrast with the spectra of Mn++ ions which had been usually observed in alkali halides. The ground level splitting parameters have been determined in the spin Hamiltonian DS12+E(S22−S32) as follows: D=(−420±1)·10−4 cm−1, |E|=(65±1)·10−4 cm−1 for Mn++−F−, D=(−511±5)·10−4 cm−1, |E|=(25±5)·10−4 cm−1 for Mn++−X−−, a manganese divalent anion pair, in NaCl, and D=(−672±5)·10−4 cm−1, |E|=(12±3)·10−4 cm−1 for Mn++−X−− in LiCl, the principal axes of the spin Hamiltonian being in nearly agreement with the cubic axes of the crystal. The large value of D suggests the existence of the strong attractive force between Mn++ and impurity ion.View full abstractDownload PDF (900K) -
Masao Kuriyama, Hirokage Yamanouchi, Sukeaki Hosoya1961 Volume 16 Issue 4 Pages 701-706
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSSingle-crystal thin films of nickel having the (100) and the (111) orientations were epitaxially grown by deposition in vaccum onto heated rock salt and zincblende. By electron diffraction, these films were examined to be 100 A to 500 A in size of crystallites without appreciable strain.
By the experiment of ferromagnetic resonance absorption at room temperature, three magnetic quantities were measured at the same time: the saturation magnetization, the crystalline anisotropy and the Landé splitting factor. The first quantity was found to be almost independent of the thickness of films (100 A to 1000 A) and its magnitude was 350 or 400 in gauss, respectively for the (111) or the (100) orientation. This difference may be ascribed to the stress in films. The second one varied in the range between −2×104 and −5×104 erg/cm3 and the third was 2.2 in average.
The crystalline anisotropy causes the shift of resonance line as the film is rotated in its plane. Besides, it was found that the more perfect orientation a film has, the narrower is the resonance line.View full abstractDownload PDF (980K) -
Shoichiro Nomura, Tatsuyuki Kawakubo, Taketoshi Yanagi1961 Volume 16 Issue 4 Pages 706-710
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA measurement of the specific heat of Ti2O3, prepared by the method of powder metallurgy, was carried out in the temperature range from 50° to 250°C, under the pressure of 10−4 mm Hg. A modified method of measurement by the conduction-type calorimeter was adopted, and its reliability of measurement was described in connection with the method of calculation. A broad anomaly of specific heat was observed near 180°C and the amount of anomalous heat was 36 cal/mol, which was smaller than Naylor’s result. Some discussions about the anomaly of specific heat were presented.View full abstractDownload PDF (584K) -
Masami Tomono1961 Volume 16 Issue 4 Pages 711-719
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSA single crystal of n-type germanium was alloyed with indium on its (111) plane and the resulting regrown layer of p-type germanium was observed. When the specimen was cooled at an intermediate speed, dendritic crystal is produced on the flank of the pan-shaped regrown layer. In the case of cooling at very low speed, steps bounded by (111) plane are produced also on the flank. Any of these may be indicative of the growth due to screw dislocation. On the other hand, when the specimen was cooled rapidly, growth due to surface nucleation takes place on the bottom while dendritic growth due to screw dislocation is produced on the flank. As to a specimen made by alloying Pb–As alloy on a p-type germanium pellet and subsequently cooled at low speed, several layers of striations are observed on its cross-section. By this method, it is possible to make observations on the state in which misfit grain boundary is formed in the course of regrowth and also on the anomaly of regrowth produced around a blowhole and other foreign materials.View full abstractDownload PDF (2656K) -
Jiro Yamashita1961 Volume 16 Issue 4 Pages 720-732
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe low-temperature electrical breakdown effect in n-type germanium which was observed by Sclar and Burstein, and Koenig and Gunther-Mohr, is discussed from viewpoint of the hot electron theory. At first, we assume that the energy loss of conduction electrons comes only from the acoustic scattering, while the mobility is determined by ionized and neutral impurity scatterings besides the acoustic scattering. We evaluated the electron temperature as a function of applied field and then estimated the rate of ionization of donors and the thermal recombination coefficient. By using these values we estimated the breakdown field of some specimens and compared it with the experiment. The result of the theory seems to be in good agreement with the experiment, when the concentration of donors and acceptors is fairly small. The theoretical result is, however, inconsistent with the experiment, when specimens contain donors above 1015/cm3. It seems to be other mechanisms of the energy loss which work more effectively than the acoustic scattering does, when the concentration of the donors is above 1015/cm3. Further, we proposed a mechanism of the energy loss at compensated germanium which leads to the negative resistance.View full abstractDownload PDF (1560K) -
Zensho Ishii1961 Volume 16 Issue 4 Pages 733-736
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSThe anomalous boundary effect similar to these found by Fukushima in guartz were studied by x-ray diffraction topography methods in Ge and Si single crystals. Both Laue and Bragg cases are examined using CuKα and AgKα radiations for various net planes. Results are reasonably explained by assuming a strain gradient perpendicular to the boundary as the previous workers. It was shown that the Borrmann effect as well as the ordinary extinction effect are useful in point-by-point examination of lattice distortions in nearly perfect single crystals.View full abstractDownload PDF (564K) -
Motoyosi Sugita1961 Volume 16 Issue 4 Pages 737-740
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe analogy or the correspondence between the controlled or catalytic reaction and the switching circuit is given, showing that an arbitrary logical circuit can be translated into a system of controlled chemical reactions, which are catalyzed by some of the reaction products of this system. The realizability of such a chemical system is not considered but the logical possibility is discussed using several examples. Nevertheless, we can imagine a way to combine the knowledge of biochemical reactions to various physiological functions and can give useful suggestions to the experimental analysis of the biochemical reactions from the view-point of logical or functional analysis.View full abstractDownload PDF (524K) -
Kisaku Nakagawa1961 Volume 16 Issue 4 Pages 741-745
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSMany ions were observed in the spectra of polyethylene heated in the ion source of a mass spectrometer for the temperature range of 150–330°C. With elevation of temperature, the rate of ionic yield displayed a stage of slower increase, Process I, followed by a steeper uprise, Process II. For two commercially available polyethylene, Marlex and Hostalen, it was found that the values of activation energy for the latter stage appeared to be 34 kcal/mol for Marlex and 24.7 kacl/mol for Hostalen. On the contrary, the values for Process I were found to be 6.5±1.2 kal/mol for both samples. According to the mass spectra obtained and the values of activation energy, it was concluded that Process II is corresponding to the stage of thermal degradation, while Process I would be explained by the presence of a stage of evaporation of lighter components included originally in polyethylene.View full abstractDownload PDF (620K) -
Nobuhisa Imai1961 Volume 16 Issue 4 Pages 746-760
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe characteristic nature of ion-binding of much charged polyions has been investigated mainly on the basis of the Poisson-Boltzmann (P.B.) equation and partly through the conductance experiment. In general, the ion-binding can be classified into two types, the ψ-binding and the P-binding. The former is due to the electrostatic field around polyions, while the latter is due to the short-range interaction between ionized groups of polyions and salt-ions. Through the theoretical analysis of non-linear property of the P.B. equation, we have found, for every shape of polyions, the strong ψ-binding of counterions which greatly depresses the polyion-charge within a thin ion-condensation phase around the polyion. By exactly solving the two-dimensional P.B. equation, we have also obtained the ion-distribution around many rod-like polyions and found the two-step ion-condensation phenomenon; at the first step, counterions are condensed in the neighbourhood of the assembly of polyions, and at the second step, a similar condensation phenomenon occurs around each of the polyions. The alteraction of spatial arrangement of polyions causes a larges change of activity coefficient of small ions.
Through the conductance measurement, we have found the strong P-binding of divalent cations to polyions. Generally, the P-binding is very much strengthened by the effect of φ-binding.View full abstractDownload PDF (1756K) -
Hiroshi Asai1961 Volume 16 Issue 4 Pages 761-766
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
JOURNAL RESTRICTED ACCESSIn this study, the ultrasonic velocity and the density of the polycarboxylic acid solutions which are neutralized at various degrees by sodium hydroxide or tetra-n-butyl ammonium hydroxide have been measured. From these results, the amount of hydrated water molecules has been estimated. An abnormal behavior of hydration has been found in polyacid solutions neutralized by NaOH, which is interpreted as being due to the partial dehydration resulting from Na ion-polyion binding at high degree of neutralization. The effects of adding various mono- or di-valent salts upon the hydration state of polyanion were also examined. From these experiments, it has been found that Ba ion-polyion binding gives rise to 40 percent dehydration of the water molecules which were hydrated in no binding state, and Mg ion-polyion binding gives rise to 20 percent dehydration. The whole results in polyacids were always compared with the results in monoacids, and it was concluded that the above dehydration phenomenon was one of the important characteristics of polyacids.View full abstractDownload PDF (716K) -
Motokazu Hirono1961 Volume 16 Issue 4 Pages 766-776
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA theoretical study of cross relaxation in Maser materials has been carried out based on the moment method. The energy level splittings due to the crystalline electric field and the applied magnetic field are utilized for the computation of the moments of the cross relaxation. If the lattice points are populated at random by paramagnetic ions in highly diluted salts, the second moment is much greater than the overlap integral of the individual ordinary resonance line shapes and to some extent influenced by the orientation of the applied magnetic field. The shape function of the cross relaxation is roughly Gaussian but takes slightly less values in the wings. The cross relaxation in ruby Maser successfully operated at liquid nitrogen temperatures has been briefly discussed.View full abstractDownload PDF (1012K) -
Tadao Shimizu, Koichi Shimoda1961 Volume 16 Issue 4 Pages 777-791
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSCharacteristics of a low frequency beam-type maser is discussed. A particularly interesting phenomenon is a breakdown of the adiabatic focusing approximation. Theories of electro-static focusing and the line-width of the low frequency transition are obtained by taking into consideration the effect of transition induced by the Stark field which changes with time on a moving molecule.
Saturation of the effective number of focused molecules with the focuser voltage is calculated. The induced radio-frequency transition of a molecule in a mixed state is calculated and the line shape is shown to be the same as for a molecule in a pure state.View full abstractDownload PDF (1356K) -
Mieko Takagi, Norihisa Kitamura, Setsu Morimoto1961 Volume 16 Issue 4 Pages 792-793
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSDensity (D)-Exposure (E) curves measured for Fuji Process Orthochromatic plates for electrons with energy 20∼200 kV were given. Dependence of developing conditions on D–E curves was also examined. At a suitable developing condition, D–E curves for electrons with higher energy than 50 kV are linear over a wide range of density, and for electrons with lower energy they bend over at lower density.View full abstractDownload PDF (264K) -
S. K. Datta1961 Volume 16 Issue 4 Pages 794-797
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSIn this paper the steady flow of a certain type of elastico-viscous liquid in the annulus between two coaxial circular cylinders and between parallel plane boundaries has been considered. It is assumed that fluid is injected at one boundary and withdrawn at the other, both at the same rate and one of the boundaries is assumed to be moving with a constant velocity parallel to its generator. Numerical values have been given both for the annulus and for the parallel plates.View full abstractDownload PDF (320K) -
Keishiro Niu1961 Volume 16 Issue 4 Pages 798-805
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThis paper deals with the flow of a condensing vapour. The vapour flow in a pipe of constant cross-sectional area with heat-removal effect through the pipe walls has the temporary supersaturated state in the supersonic flow by the effect of surface tension of the droplets which are born in the vapour. In case when the fluid is maintained continually in the supersaturated state, the ratio of the increase in relative humidity to the increase in Mach number or to the decrease in pressure is greater in the flow with heat-removal than in the adiabatic flow. Numerical calculations have been carried out for an example of the flow with definite initial conditions and the region where the condensation shock takes place is predicted theoretically.View full abstractDownload PDF (828K) -
Shin Kawamata1961 Volume 16 Issue 4 Pages 805-807
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSA some what simplified method calculating the steady and incompressible laminar boundary layer flow is developed basing on the idea of the “local similarity”. The analysis is performed by using the variables proposed by Goertler. The calculated results are utilized to predict the separation points in some decelerated flows and the comparison with other exact solutions shows that the value of the “similar parameter” may be taken as −0.224 at the separation points in this method.View full abstractDownload PDF (212K) -
Koreo Kinosita1961 Volume 16 Issue 4 Pages 807-818
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSIt is known that acids leach out metal ions from the outermost layer of glass, leaving a skeleton film. We found that the refractive index of such a film nf changes with the relative humidity p⁄p0, and studied nf vs. p⁄p0 relations for some dense flint and dense crown glasses. The following conclusions are derived from the analysis of nf vs. p⁄p0 curves: (1) The refractive index of the skeleton ns (>nf) is always greater than that of fused silica, indicating that metal ions are still contained in the skeleton. (2) The porosity of the film ranges from 0.05 to 0.21, and the mean pore radius from 6Å to 23Å, depending on the composition of glass as well as the leaching conditions.View full abstractDownload PDF (1576K) -
Yûkichi Nomura, Tadao Osanai1961 Volume 16 Issue 4 Pages 819-831
Published: April 05, 1961
Released on J-STAGE: June 01, 2007
JOURNAL RESTRICTED ACCESSThe solution of the problem, when the holes do not overlap but are distributed arbitrarily in one plane, is obtained by the method of expansion in hypergeometrical polynomials. Formulae of some physical quantities concerned are given. In the case of normal incidence, we also give approximate formulae which are valid when the wave length is large in comparison with the radius.View full abstractDownload PDF (924K) -
Junji Shirafuji, Yoshio Inuishi1961 Volume 16 Issue 4 Pages 832
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Yasuo Matukura, Shigezo Tanaka1961 Volume 16 Issue 4 Pages 833-834
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Zenji Nishiyama, Atsuo Kore’eda, Isamu Eguchi, Koshi Kato1961 Volume 16 Issue 4 Pages 834
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Ryosuke Hoshino1961 Volume 16 Issue 4 Pages 835-836
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Hidetaro Abe1961 Volume 16 Issue 4 Pages 836
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Kohzoh Masuda, Tokuo Suita1961 Volume 16 Issue 4 Pages 837-838
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Hiroshi Nosé1961 Volume 16 Issue 4 Pages 838
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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James A. Ibers, C. H. Holm1961 Volume 16 Issue 4 Pages 839
Published: April 05, 1961
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Yoji Nakamura, Tetsuo Nakajima, Hideo Takaki1961 Volume 16 Issue 4 Pages 840-841
Published: April 05, 1961
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Saburo Homma, Tokihiro Kuroyanagi, Haruhiko Morinaga1961 Volume 16 Issue 4 Pages 841-842
Published: April 05, 1961
Released on J-STAGE: May 29, 2007
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Yasuo Matukura1961 Volume 16 Issue 4 Pages 842-843
Published: April 05, 1961
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Kiyoshi Kume, Yoshinobu Kakiuchi1961 Volume 16 Issue 4 Pages 843-844
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Tutomu Inoue1961 Volume 16 Issue 4 Pages 844-845
Published: April 05, 1961
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Wataru Segawa1961 Volume 16 Issue 4 Pages 845A
Published: April 05, 1961
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Setsuo Okuda1961 Volume 16 Issue 4 Pages 845B
Published: April 05, 1961
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Yoshihiro Kamiya, Keiichi Ando, Minoru Nonoyama, Rhozi Uyeda1961 Volume 16 Issue 4 Pages 846A
Published: April 05, 1961
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Wataru Segawa1961 Volume 16 Issue 4 Pages 846B
Published: April 05, 1961
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