[en] In the United States, coal provided 56 percent of the electricity generated in 1992. Nuclear energy was the next largest contributor, supplying 22 percent. Natural gas provided 9 percent, while hydro-electric and renewables together supplied another 9 percent. Currently, the 109 nuclear power plants in the U.S. have an overall generating capacity of 99,000 MWe. To improve efficiency, safety, and performance, the lessons of 30 years of experience with nuclear powerplants are being incorporated into design criteria for the next generation of U.S. plants. The new Advanced Light Water Reactor plants will feature simpler designs, which will enable more cost-effective construction and maintenance. To enhance safety, design margins are being increased, and human factors are being considered and incorporated into the designs

[en] AECL has over 40 years of experience in the nuclear field. Over the past 20 years, this unique Canadian nuclear technology has made a worldwide presence, In addition to 22 CANDU reactors in Canada, there are also two in India, one in Pakistan, one in Argentina, four in Korea and five in Romania. CANDU advancements are based on evolutionary plant improvements. They consist of system performance improvements, design technology improvements and research and development in support of advanced nuclear power. Given the good performance of CANOU plants, it is important that this CANDU operating experience be incorporated into new and repeat designs

[en] In a nuclear power plant project, the cost of components and equipments cover 55-60% of the total cost price of the plant. This percentage shows the importance of the national participation to the project. However, one should not ignore the necessity of the special technology, 'know-how' and qualified man power in manufacturing the components and equipments of the nuclear power plant. For countries, planing the utilization of the nuclear power, it is needed to have a preliminary preparation activity. Such an activity, concerning the preliminary preparation phase, should include a feasibility study aiming phase, the survey and assessment of the national manufacturing industries

[en] The document presents Statement to the 41st Session of the General Conference of the International Atomic Energy Agency made at the 40th anniversary of the IAEA

[en] This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1996 to March 31, 1997. Summary reports of 88 papers and 4 brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (J.P.N.)

[en] The dynamical analogy of the Cabibbo-Kobayashi-Maskawa matrices is built, i.e., the phenomenological expansion of the weak interaction theory by the inclusion of four doublets of the charged-vector bosons B^±, C^±, D^±, E^±, leading to transitions between the quark families, and of four doublets of the charged-vector bosons X₁^±, X₂^±, X₃^±, X₄^±, leading to transitions between the lepton families, is suggested. The bosons E^±, X₄^± realize CP-violation. This expansion works only at a tree level. An estimation of the boson masses is performed. The quasi-elastic processes proceeding through an exchange of the bosons and the production cross sections are given

[en] The Casimir energy of a solid ball placed in an infinite medium is calculated by a direct frequency summation using the contour integration. First it is assumed that the permittivity and permeability of the ball and medium satisfy the condition ε₁μ₁=ε₂μ₂. Then the calculations are extended to the dilute dielectric ball (ε₁-ε₂)²/(ε₁+ε₂)²<<1. The Casimir energy for the last configuration turns out to be positive, it being increased when the radius of the ball decreases. The latter eliminates completely the possibility of explaining, via the Casimir effect, the sonoluminescence for bubbles in a liquid

[en] It is shown that the best agreement of Migdal theory of the Landau-Pomeranchuk effect with experiment is achieved in the case, when electron-atomic scattering is described in quasiclassical approximation instead of usually used Born one. (author)

[en] This issue is the collection of the paper presented at the title meeting. The 10 of the presented papers are indexed individually. (J.P.N.)

[en] In this paper, developments in the world for utilization of nuclear energy and, in parallel to these developments, works undertaken in Turkey are summarized. Besides this, future prospects in the field of nuclear energy in the world and in Turkey, and our opinion about the action to be taken in our county, in the light of past experiences of nuclear power projects that could not be succeeded, are presented