On a relationship between graph L-systems and picture languages

This paper presents the applicability of graph L-systems to the generation of two-dimensional pictures. It is shown that the class of graphs generated by extended tabled node-replacement graph L-systems (ETnGL) contains the class of isometric array languages under some stipulations which are used to regard an array as a graph.     

A preliminary study for fiber spinning of mixed solutions of polyrotaxane and cellulose in a dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system

Polyrotaxane fiber and polyrotaxane/cellulose blend fibers were prepared by wet-spinning of the polyrotaxane or polyrotaxane/cellulose blend solution dissolved in the new solvent system, i.e. dimethylacetamide/lithium chloride (DMAc/LiCl), into methanol and a subsequent annealing. In the resultant polyrotaxane/cellulose fiber, some undissolved rodlike cellulose microcrystals were oriented along with the fiber axis, resulting in formation of nanocomposite-like structure. From tensile measurements, it was found that the Young's modulus and tensile strength of the fibers with polyrotaxane/cellulose ratio of 1:1 and 2:1 were higher than those of the pure cellulose fiber. Although the mechanical properties of the fiber with polyrotaxane/cellulose ratio of 4:1 and the pure polyrotaxane fiber were lower than those of the pure cellulose fiber, these fibers showed significantly large strain at break (up to 90% strain), presumably due to the sliding of the cyclodextrin rings of the polyrotaxane in the fibers.     

SHAPE CHARACTERIZATION OF TWO-DIMENSIONAL FORMS BY A FRACTION OF ELLIPSE AND DIAMOND

Meloy's method is extended in its use to characterize two dimensional forms by a fraction of ellipse and diamond. The Fourier coefficients are calculated for a vectorial expression of the form about the center of gravity. The value interpolated at the wave number 10 is a good measure for the macroscopic shape, which is assumed to be expressed as a fraction of the values for elippse and diamond. As the microscopic shape index the surface roughness of the form is discussed in terms of the perimeter divided by that of the equivalent ellipse which has the same area as the particle. The shape analysis is applied for various particles of the reference standard dusts.     

Studies on synthetic-polymer plates with high surface energy. V. Diethylene glycol bis(allyl carbonate)–acrylic acid copolymer plate by vapor-phase transfer process

Synthetic-polymer plates with carboxyl group on their surface were prepared by a two-step copolymerization process transferring M₂ monomer via vapor phase. Diethylene glycol bis(allyl carbonate) (CR-39) was used as M₁ monomer, and acrylic acid was acid was used as M₂ monomer. The relations between the experimental conditions and the surface properties of the resulting plates were examined in the following terms: (1) composition of CR-39 prepolymer gel plate used and (2) concentration of benzoyl peroxide as the initiator. The plates had good water wettability and an excellent antifogging property.     

Thermal transport phenomena near the lambda line of 3He-4He mixtures

Effective thermal conductivities in the absence of mass diffusion have been measured near the lambda line of ³He-⁴He mixtures of up to 33% ³He concentration. The thermal conductivity in the normal phase has a rapidly increasing behavior as the temperature approaches the lambda point, but reaches a finite value there. Thermodiffusion ratios have also been measured, and show weak divergences—if any, weaker than logarithmic. Then, by using previous experimental values of the mass diffusivity given by Ahlers and Pobell, the thermal conductivity and the corresponding thermal diffusivity in the absence of the concentration gradient are deduced. The thermal diffusivity diverges with a critical exponent of approximately 1/3 irrespective of ³He concentration. The diffusivities D₀ and D₂ corresponding respectively to the linewidths of the Rayleigh and the second-sound Brillouin scatterings in the superfluid phase are obtained: D₂ diverges with a critical exponent of approximately 1/3 irrespective of ³He concentration, whereas D ₀ does not diverge at all. As a whole, the mode-coupling theory on the basis of the dynamic scaling hypothesis has been proved to hold in the superfluid transition.Based on a Ph.D. dissertation submitted by Mitsuru Tanaka to the University of Tokyo (1977).     

Feasibility study of nitride fuel core and recycle system toward self-consistent nuclear energy system

A concept of nitride core and recycling system in relation to SCNES⁽¹⁾ has been investigated and it has been found that the safety of intact core is enhanced by zero burnup reactivity and negative feedback at ULOF (Unprotected Loss of Flow) and ULOHS (Unprotected Loss of Heat Sink). The self-actuating modules are examined so as to eliminate recriticality of degraded core. The nitride core can employ transuranics-added fuels and burn long life radioactive fission products after isotope-separation of FPs. The enrichment of ¹⁵N and the laser isotope separation seem to need about 2.4% of produced electric energy in the preliminary evaluation.     

The Age- And Sex-Distributions of Systemic Lupus Erythematosus in Japan,the United States and Netherland

Behaviormetrika - We conformed the age- and sex-specific onset rates of SLE in three series from the United States, Netherland and Japan to the Weibull distribution. It was shown that all sample...