巻号一覧
8 巻 (1953)
- 6 号 p. 689-
- 5 号 p. 571-
- 4 号 p. 435-
- 3 号 p. 283-
- 2 号 p. 139-
- 1 号 p. 1-
8 巻, 2 号
選択された号の論文の34件中1～34を表示しています
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Isao Kita, Osamu Minakawa1953 年 8 巻 2 号 p. 139-141
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありUsing counter controlled cloud chamber in conjunction with hodoscope, nuclear interactions which were caused by secondary shower particles were investigated, and these events classified as high and low energy showers by the inspection of hodoscope pictures. The results show that the multiplicities of the low and the high energy secondary showers are 2.8±0.4 and 3.1±0.4 respectively and from angular distributions of tertiary particles, it is concluded that the mesons are presumably produced multiplily and isotropically in C-system.抄録全体を表示PDF形式でダウンロード (472K) -
Takehiko Oguchi1953 年 8 巻 2 号 p. 142-148
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe theory of the rotational phase transitions in the dipolar molecular crystals are discussed. In these crystals, the molecules are under the dipole-dipole interactions between them. The dipole-dipole interactions are simplified as following : the interaction potential between two neighboring molecules along x or y axis is (J⁄4)cos(ω,ω′) and that along z axis is −(J⁄2)cos(ω,ω′), where (ω,ω′) is the angle of the orientations of the dipole moments and J is the positive constant. By the cause of such an potential, the dipoles are arranged parallel to each other along z axis and anti-parallel along x and y axis at lower temperatures. The equilibrium state is obtained by solving the non-linear integral equation which is constructed by minimizing the free energy at the stage of the Bethe’s approximation and the transition point is determined from the branching point of this integral equation.抄録全体を表示PDF形式でダウンロード (892K) -
Yoshinobu Seki1953 年 8 巻 2 号 p. 149-151
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありA series of striae equally spaced was observed in a region of electron-micrograph where two thin rectangular crystal flakes of sericite, a clay mineral, overlapped each other in almost parallel orientation, but with a small rotational angle around their common axis. An interpretation of this striation by hypothesis of double diffraction of electrons caused by rotational overlapping of two crystal flakes was carried out. The possible spacing of the net plane responsible for this diffraction was calculated from the separation of the striation and the small rotational angle of the two flackes. The result did not contradict with that from the electron diffraction photograph of a single flake obtained by a three-stage electron microscope. Thus, this hypothesis has proved itself to work for the interpretation of the present observation.抄録全体を表示PDF形式でダウンロード (788K) -
Ryoitiro Sato1953 年 8 巻 2 号 p. 152-158
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありIn order, on the one hand, to accumulate data on crystal overgrowth on single crystal surfaces in solid-liquid systems, and, on the other, to elucidate the mechanism involved in activation of sphalerite by heavy metal salts in flotation, electron diffraction investigation has been carried out on the action of silver nitrate and sulfate of comparatively low concentrations upon sphalerite cleavage face. Three kinds of surface products have been revealed: acanthite (Ag2S), metallic silver, and silver carbonate. It is noteworthy that the produced acanthite crystallites assume a certain epitaxial orientation with respect to the substrate even at room temperatures. In addition, it has been shown that the aging of the surface products in dry atmosphere results in the growth of the acanthite crystallites and the disappearance of the silver.抄録全体を表示PDF形式でダウンロード (1044K) -
Jitsuo Terada1953 年 8 巻 2 号 p. 158-164
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありCrystal structures of the co-precipitated triple carbonates of Ba, Sr and Ca were studied by x-ray powder method using an x-ray Geiger counter spectrometer. There exist three kinds of solid solutions : aragonite type crystal (λ-carbonate), calcite type crystal (β-carbonate) and vaterite type crystal (μ-carbonate); in the BaCO3-SrCO3-CaCO3 system. The phase domains of these three crystal forms are affected some-what by the temperature at which the precipitation is carried out. The triple diagrams are obtained at two stages of precipitation temperatures.抄録全体を表示PDF形式でダウンロード (1288K) -
Sigeru Nagahara1953 年 8 巻 2 号 p. 165-168
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありA general theory of the scattering of slow electrons by diatomic molecules is formulated. The ellipsoidal coordinates are used, but the separability of the wave equation in these coordinates is not assumed. Explicit expressions for differential and total cross-sections are given, but the numerical evaluation is reserved for a later paper.抄録全体を表示PDF形式でダウンロード (444K) -
Hisao Miyazawa1953 年 8 巻 2 号 p. 169-175
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありSpectral distributions of the photoelectric yield and energy distributions of the photoelectrons were observed at room temperature, 195°K and 90°K for Cs3Sb. The facts obtained are as follows: (1) The quantum efficiency Y rises rapidly as hν increases above 2ev, and reaches the maximum at hν∼3.8ev, where the magnitude of Y exceeds 10−1. Further, there appears the second maximum at hν∼5ev. (2) For hν\gtrsim3ev Y increases with the decrease in temperature in accordance with the relation (∂Y⁄∂T)⁄Y\fallingdotseq−10−3/deg. (3) On the contrary, in the low energy tails at hν∼2ev Y decreases with decreasing temperature, or the photoelectric work function \varphi shifts with temperature in the form ∂\varphi⁄∂T=−3∼5×10−4ev/deg. (4) At lower temperatures a minor hump in Y can be seen at hν∼2.2ev. (5) Energy distributions are comparatively temperature-insensitive, but for hν∼5ev, corresponding to the second maximum in Y, there is a growing preponderance of low velocity electrons, which is quite unlike those for smaller hν.
These results are discussed in terms of a possible energy structure for Cs3Sb.抄録全体を表示PDF形式でダウンロード (1060K) -
Hideya Gamo1953 年 8 巻 2 号 p. 176-182
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありExact solutions of the magnetic rotation of the guided waves in a circular waveguide of infinite length are described, whereby the rotational terms in both magnetization and electric polarization are considered. The normally degenerate modes of the circular guide are separated by the external magnetic field into two partial waves—i.e., the right-handed and left-handed circularly polarized waves, which are neither transverse-electric nor transverse-magnetic but are reduced to the TE- or TM-mode in the limit of vanishing magnetic field. The propagation constant of each partial wave is determined by a transcendental equation derived from the boundary conditions. Curves giving the frequency dependency of the propagation constants for both partial waves are shown for the quasi-TE11-modes, and quasi-TM11-modes for a special value of the coefficients of rotational terms. The dependence of the cutoff frequencies on these coefficients is also obtained. For TM-modes, the cutoff frequencies of both partial waves are found to coincide.抄録全体を表示PDF形式でダウンロード (732K) -
Masaki Hirashima1953 年 8 巻 2 号 p. 182-193
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありA description of experiments which were carried out to measure the plate-current distribution in a retarding-field tube of concentric structure, and the energy distribution of electrons flowing into the plate of another experimental tube, both under optimum receiving conditions at the wave lengths of 54 cm and 58 cm respectively, is contained. It is deduced that only a small portion of the plate electrode is effective in contributing to the plate current, and that the mean energy and the increment of energy of electrons gained from the high-frequency fields induced by the incoming wave whose field intensity is estimated to be of the order of 10 mV/m at most are 0.1 eV and approximately 1.2 eV respectively. Approximate calculations, performed on the assumptions that the grid alone is given a superimposed high-frequency voltage, the filament and plate being assumed grounded for high-frequency currents, and that the fields are linear, show that the high-frequency voltage induced on the grid by the incoming wave is about 0.6 volt. The voltage step-up ratio of the receiver under consideration is then calculated to be about 320. The apparent input resistance of the tube is roughly estimated to be of the order of −3.16×103 ohms. The equivalent circuit and the condition for generation of self-oscillation are thus derived.抄録全体を表示PDF形式でダウンロード (1564K) -
Shoji Kimura1953 年 8 巻 2 号 p. 193-199
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありBy applying an impulsive voltage to the anode of a glass mercury arc rectifier wherein the cathode spot exists, the wave forms of anode voltage, anode current and excitation anode voltage were observed through a high speed oscilloscope or a transient analyser. In consequence it was found that a mercury arc has a characteristic of reactance and it can be explained through the inertia of mercury ions.抄録全体を表示PDF形式でダウンロード (884K) -
Shoji Kimura1953 年 8 巻 2 号 p. 200-206
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありThe research on a mercury arc was performed by movable probes. Through the result of this research the aspect of the distribution of potential, electron temperature, electron density, neutral molecul density and luminous appearance of discharge were made clear. Then the considerations on these quantities were done by dividing the phenomena into the anode fall, the positive column and the distribution of the mercury vapour density. Thus the extensive characteristics of a mercury arc were known.抄録全体を表示PDF形式でダウンロード (980K) -
Shoji Kimura1953 年 8 巻 2 号 p. 207-212
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありVarious experiments and considerations on the condition of ignition, the are voltage drop fluctuation due to the motion of the cathode spot, the arc pathes depending upon a baffle inserted in the arc space were performed. And some characters which depended upon the temperatures of some parts of the arc equipment were studied too. As the motion of the cathode spot and the temperatures of the arc equipment have interesting and particular effects on the mercury arc, the relations with those are mentioned in this report.抄録全体を表示PDF形式でダウンロード (876K) -
Kiyoshi Murakawa1953 年 8 巻 2 号 p. 213-214
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありIsotope shift (Mg26–Mg24) in the lines Mg I λ4571 (31S0–33P1) and λ2852 (31S0–31P1) was measured. For terms of Mg I isotope shifts that have been measured by various authors are summarized in a diagram (Fig. 4).抄録全体を表示PDF形式でダウンロード (300K) -
Kiyoshi Murakawa1953 年 8 巻 2 号 p. 215-218
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe hyperfine structure of the W I spectrum was studied, and the ratio of the distances of the neighbouring components corresponding to the even isotopes Δ(184−182)⁄Δ⁄(186−184) was determined to be 1.206±0.010. Isotope displacement effect in 55 lines of W I and the relative isotope displacement effect in about 29 terms of W I are tabulated. Some odd levels are interpreted as arising from the electron configuration 5d36s26p.抄録全体を表示PDF形式でダウンロード (984K) -
Koreo Kinosita1953 年 8 巻 2 号 p. 219-225
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありIntensity distribution curve of a multiple-beam Fizeau fringe is numerically evaluated for a typical case: normal incidence, R (the reflectivity of silver film)=0.90, θ (the wedge angle)=3×10−3 rad., and the order of fringe t⁄\fracλ2=6 in which t represents the thickness of the wedge at the point where the fringe is formed and λ the wave-length of light. The main maximum is about 80% as high as that of the corresponding Fabry-Perot fringe, and is slightly asymmetric. Secondary maxima suggested by Brossel are verified. They are restricted to one side of the main maximum in which the wedge is thicker. The cause of the asymmetry of the main maximum and the origin of secondary maxima are discussed.抄録全体を表示PDF形式でダウンロード (824K) -
Kikusaburo Osada1953 年 8 巻 2 号 p. 226-228
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありThe characteristic ultraviolet absorption spectra of glasses with simple compositions were measured to 180 mμ with a small quartz spectrograph. The following results were obtained:
(Remark: Graphics omitted.)
To investigate, particularly, the mechanism of the absorption maximum at 237 mμ of the Pb glass, spectra of acetate- and of plumbite-solution were measured. And, from the evidence that the spectrum of mixed solution of sodium- and lead-acetate coincides with that of the Pb glass, it may be interpreted that the appearance of the absorption maximum of the Pb glass is due to lead ions bonded weakly unsaturated oxygens in the network of SiO4.
The variation of luminescence efficiency of them with wave-length of exciting radiations was also measured within the range between 200∼300 mμ, and it was found that the luminescence maximum appeared near the correspond ing wave-length to the absorption maximum.抄録全体を表示PDF形式でダウンロード (468K) -
Goro Kuwabara1953 年 8 巻 2 号 p. 229-233
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe fatigue of Ag–Cs photoelectric tubes was measured for the light of low intensity at room temperature. The results can be explained neither by the hypothesis of de Boer nor by that of Suhrmann. The necessary conditions for obtaining a high accuracy in photoelectric photometry with Ag–Cs phototubes were discussed.抄録全体を表示PDF形式でダウンロード (748K) -
Yasuo Torikai1953 年 8 巻 2 号 p. 234-242
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe transmission of ultrasonic waves at oblique incidence through a plane plate made of viscoelastic material is theoretically studied. The absorptive properties of the solid medium which have been neglected in the preceding theory are considered. The resulting expression for the transmission is of the same form as in the case of a non-absorptive plate, but the propagation constants of the waves are replaced by complex quantities in the expression. It is shown that when the absorption by the plate is appreciable, the more simple formula can be applied and the formula agrees well with the experimental result. As a note on Srivastava’s papers, it is explained that the velocity of rotational waves obtained from the apparent critical angle for rotational waves is always larger than the real value on account of the absorptive property of the solid medium.抄録全体を表示PDF形式でダウンロード (1040K) -
K\={o} Tamada1953 年 8 巻 2 号 p. 242-247
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありIn this paper is given an approximate analysis of the transition from attached to detached shock wave for the case of a finite wedge. Neglecting the vorticity, the flow behind the shock is expressed approximately by a velocity potential which consists of two parts, one corresponding to a uniform flow and the other to the perturbation flow respectively. The perturbation potential and the shape of the shock wave are determined simultaneously by a fundamental linearized equation in conjunction with appropriate boundary conditions on the shock wave and at the surface of the wedge. They are found to reveal characteristic singularities at the tip of the wedge. Some special treatment is needed for the extreme case of the detachment Mach number. Numerical computations are made for several Mach numbers on the shape of the shock wave and the velocity distributions along the side of the wedge. The drag coefficient of the wedge is also calculated as a function of the Mach number. It may be noticing that the calculated value of the drag coefficient attains its maximum in the midst course of the transition.抄録全体を表示PDF形式でダウンロード (676K) -
Zir\={o} Hasimoto1953 年 8 巻 2 号 p. 248-251
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありExplicit representation of cross Mach lines in simple waves has already been obtained for the case of polytropic gases. In the present paper, a more general expression is deduced without restriction to any special type of gases. It is also shown that the distribution of the stream function along a cross Mach line can be expressed in a very simple form.抄録全体を表示PDF形式でダウンロード (448K) -
Zir\={o} Hasimoto1953 年 8 巻 2 号 p. 251-254
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありA few discussions are made on the condition in the neighbourhood of an envelope formed by the straight Mach lines in a simple wave, obtaining the result that at the envelope, which may be called a “limiting line” as in the case of ordinary flows other than simple waves, the cross Mach lines have a cusp and the distribution of the stream function along the cross Mach lines takes an extremum.抄録全体を表示PDF形式でダウンロード (424K) -
Sh\={o}ichi Wakiya1953 年 8 巻 2 号 p. 254-257
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe Poiseuille flow through a circular tube as affected by the presence of a fixed spherical obstacle with its center on the axis of the tube is considered on the basis of the Stokes approximation. Expressions for the resultant force acting on the sphere and for the pressure difference which must be added to maintain the total flux through the tube at the value corresponding to the case of absence of the obstacle are obtained correctly to (a⁄r0)5, where a and r0 are the radii of the sphere and the tube respectively. If terms of the order of (a⁄r0)2 can be neglected, the magnitude of the resistance is shown to be equal to that of a sphere moving with a constant velocity along the axis of a tube, which was first obtained by Ladenburg.抄録全体を表示PDF形式でダウンロード (340K) -
Kinz\={o} Hida1953 年 8 巻 2 号 p. 257-264
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありThe steady irrotational subsonic flow of a compressible fluid past a prolate spheroid is discussed by Janzen-Rayleigh’s method and the velocity potential correct to M2 is given in elliptic coordinates, where M is the Maeh number for the undisturbed flow at infinity. Numerical discussions are made for two cases in which t=0.9 and 0.1, t being the thickness-ratio of the body. In the former case the velocity distribution on the surface of the body is shown, while in the latter only the maximum velocity at the end of the minor-axis of the spheroid is given. The so-called critical Mach number, Mcrit, at which the maximum fluid velocity in the field of flow first becomes equal to the local sound velocity, is also calculated in both cases and is found to be Mcrit=0.615 and 0.972 respectively. In Appendix some numerical values of Legendre’s spherical functions Pn(z) and Qn(z)(n=1∼13) are tabulated for various values of z ranging from 1.01 to 2.抄録全体を表示PDF形式でダウンロード (844K) -
Takeo Yokobori1953 年 8 巻 2 号 p. 265-268
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありIn the previous paper the author studied the statistical aspects of fatigue fracture. In this paper as a fundamental case experiments were carried out under the reversed tension and compression fatigue test. From the results the fluctuations of the number of repeated cycles to fracture were found to have marked characteristics, which are basic features of fatigue fracture. Theoretically the problems were treated as successive events such as of damage and fracture from the standpoint of the stochastic theory, and the theory is in good agreement with these experiments. Attempt has been made to interprete the physical meaning of the transition probability from the standpoint of rate process theory, and it seems to be understood as the reaction rate.抄録全体を表示PDF形式でダウンロード (492K) -
Kozo Ishiguro1953 年 8 巻 2 号 p. 269
発行日: 1953年
公開日: 2007/06/01
ジャーナル 認証ありPDF形式でダウンロード (232K) -
Izuo Hayashi, Kazuo Ôno1953 年 8 巻 2 号 p. 270-271
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (160K) -
Hiroshi Fujita1953 年 8 巻 2 号 p. 271-272
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (152K) -
Toshimichi Sakata1953 年 8 巻 2 号 p. 272-273
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (140K) -
Yoshiyuki Kobayashi, Gor\={o} Miyamoto1953 年 8 巻 2 号 p. 273-274
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (136K) -
Chiyoe Yamanaka, Tokuo Suita1953 年 8 巻 2 号 p. 274-277
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (272K) -
Chiyoe Yamanaka, Tokuo Suita1953 年 8 巻 2 号 p. 277-278
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (200K) -
Sei-ichi Kondo, Masaru Matsumoto1953 年 8 巻 2 号 p. 279
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (164K) -
E. Fukushima, A. Ookawa1953 年 8 巻 2 号 p. 280
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (1424K) -
Tadashi Ino1953 年 8 巻 2 号 p. 282
発行日: 1953年
公開日: 2007/05/29
ジャーナル 認証ありPDF形式でダウンロード (20K)
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