開発工学
Online ISSN : 2185-2480
Print ISSN : 1343-7623
ISSN-L : 1343-7623
31 巻 , 2 号
選択された号の論文の13件中1~13を表示しています
特集
論文
研究ノート
  • 河野 順一
    2011 年 31 巻 2 号 p. 157-162
    発行日: 2011年
    公開日: 2013/11/08
    ジャーナル フリー
    Domestic geothermal energy resources in Japan expanded the range of applications as complete economical technology with high cost-performance. It is a crystal of pioneers' wisdom and effort who aimed at saving petroleum oil. This paper shows the current state and future prospect of geothermal electric power generation and geothermal energy other than electric power generation. It is the guideline for the geothermal business based on the latest developments. The author hopes this will help challengers for the geothermal energy business in their macro decision.
  • 角田 晋也
    2011 年 31 巻 2 号 p. 163-166
    発行日: 2011年
    公開日: 2013/11/08
    ジャーナル フリー
    In consideration with the global trilemma of 3E (Economy, Energy, Environment), Japanese marine energy is reviewed for this century. The highest priority should be set on social sustainability. However, the question is how many years the society should keep sustainable, as the sustainability is perturbed not only by the human activities but also by planetary or universal activities. So far as human activities are concerned, attention should be paid to waste not only of materials but also of heat. In particular, waste heat under the sea surface should be elaborately released to the tropopause, as the second law of thermodynamics does not allow waste heat to be exhaustively converted. The United Nations expects global-population increase to slow down during this century. Labor-cost cut by improvement of labor productivity without discovery of new demand from stable population will results in wage cut or in unemployment-ratio increase. Depending on the future costs against typhoons and marine bio-fouling, wave farms off and north of the Boso Peninsula and ocean thermal energy conversion of the Kuroshio Current are estimated as highly potential.
ニューコーナー
  • 小川 公人
    2011 年 31 巻 2 号 p. 167-170
    発行日: 2011年
    公開日: 2013/11/08
    ジャーナル フリー
    The Globalization of Japanese businesses has involved large and small companies alike, and has become one of the inevitable missions to accomplish in the interest of Japanese society. It is considered that patent strategies of Japanese companies have been through qualitative transitions along with the changes of the times, and these transitions are difficult to define merely by the number of patent applications.
    However, under the recent economic circumstances, Japanese companies are beginning to see limitations being put on their investment capacity. Far-sighted and pain-staking patent strategies, which correspond not only to macroscopic globalization but also to market conditions in target countries, would be the key to the successful future of Japanese businesses.
  • 関口 誠一
    2011 年 31 巻 2 号 p. 171-174
    発行日: 2011年
    公開日: 2013/11/08
    ジャーナル フリー
    Bulgaria has long traditions, extensive experience in agriculture and very rich farmland. Now is the right time to revitalise and develop further the country's agriculture, which unfortunately is not utilized and managed effectively to its full potential.
    Our company which owns excellent farmland near the Danube river has successfully grown and sold profitably wheat, barley and sunflower. Excellent business relationships were cultivated with the Bulgarian Soy Research Institute, soil institutes and seed suppliers in Japan and Bulgaria, with leading foreign land management and commodities production funds operating in the area.
    With further growth in mind we obtained all permits and licenses, including EU subsidy approval for about 50% of the construction cost of a vegetable oil factory to be build on our land plot. Further growth is envisioned through modern irrigation, expansion of areas under cultivation through lease agreements, and solar panel energy generation on the grounds of the factory.
feedback
Top