首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3篇
  免费   0篇
水路运输   3篇
  2013年   1篇
  1978年   1篇
  1975年   1篇
排序方式: 共有3条查询结果,搜索用时 0 毫秒
1
1.
A concern of many environmentalists is that marine pollution conventions are usually slow in coming into force. The reasons for this vary with each convention. Instead of exhaustively examining each convention, this paper suggests a general framework of inquiry which may be used in seeking to ascertain the speed and degree of ratification of any particular convention.  相似文献   
2.
One of the most serious and persisting problems confronting the shipping companies of all the developed maritime nations is the retention of seafarers who will yield long periods of service at sea. Turnover and wastage involves considerable expenses in recruiting and training of new seafarers. One of the means for the recruitment and retention of seafarers is the vocational nautical school system. In contrast to general education, where the objectives are diffuse, vocational institutions have very specific functions. Their achievements are therefore generally measured by means of the relative number of graduates who enter and remain in the industry for which they were trained. The present study examines the problem of the commitment to the maritime occupation of graduates of nautical schools in Israel in recent years, and it attempts to evaluate nautical education by examining the proportion of graduates who actually entered the maritime occupation and the extent of their stability at sea. No attempt is made to evaluate the economic efficiency of the nautical training system.  相似文献   
3.
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号