涡旋引力作用下的傅科摆进动、大气气旋及大洋环流

经建立的涡旋引力场,对傅科摆在引力洛伦兹力作用下产生的进动作了分析;对涡旋引力作用下的傅科摆进动、"水星进动"、地球"岁差",以及大气气旋和大洋环流运行机制的统一作了论证;提出了科里奥利力在理论的建立上及用以证明傅科摆进动方面所存在的问题;提出了证明涡旋引力场存在的方法。且对涡旋引力理论建立的合理性,作了进一步的论证。     

区域海洋管理视域下利益相关者治理探析

由于海洋区域经济和社会发展的不平衡,与海洋利益相关的各种矛盾和冲突也随之加剧。区域海洋管理过程实际上也是区域利益相关者平衡利益关系的过程。如何有效构建区域海洋管理机制,对利益相关者进行利益的合理平衡和治理,是当前区域海洋管理的一个重要问题。因此,需要通过确定利益相关者的权利和利益层次、明确利益相关者利益冲突的法律适用、调整公共政策、协调区域政府间的利益关系等方法展开。     

海权论与和谐海洋大战略观

21世纪是海洋世纪。在当今和平时代里，国家与国家之间的竞争，主要表现在能源、资源的竞争，人与自然的和谐发展以及科学技术的进步。如何用和平的手段去获取国家对海洋的控制权益，提高国家的综合竞争能力，是我国重要的海洋战略。文章结合马汉的海权论，立足海洋新世纪的发展趋势，论述如何构建当代我国和谐海洋大战略观。     

人海和谐:新海洋观与21世纪的社会发展

进入21世纪,人类社会迎来全面开发利用海洋资源和空间的“立体海洋”时代,但是人类对生存发展的思路还没有根本转变,人类对生存空间的争夺和对资源的掠夺性开发又再现于海洋,其消极后果已使人与海洋的关系、海洋活动中人与人、国与国的关系更形紧张。因此,人海和谐共处,应成为21世纪人类社会追求的海洋文明理念。其具体内容包括公平分享海洋利益、可持续地利用海洋资源、人与海洋和谐共处三个方面。     

大连城市经济与辽东半岛海洋经济协调发展的现实论证

随着海洋世纪潮的全球涌动,“实施海洋开发”已成为我国经济和社会发展的一项重要战略举措,需要从实际情况出发区域性地加以推进。在《全国海洋经济发展规划纲要》划分的11个海洋经济区中,辽东半岛海洋经济区居于首位,它对全国海洋经济发展负有表率作用和拉动使命;而大连作为核心城市,又对辽东半岛海洋经济区开发负有同样的表率作用和拉动使命,所以必须大力加快大连城市经济与辽东半岛海洋经济区的协调发展进程。既要认真考察大连城市经济与辽东半岛海洋经济区协调发展的有利条件和联动效应,又要认识到其中的不利因素,进而采取有效的操作对策:增强海洋开发意识,树立海洋环保观念;大力发展临海产业,调整与改善海陆产业结构;统一规划海陆经济开发,合理布局海陆区域功能;大力开发新兴海洋产业,更新传统海洋经济发展模式。只有这样,才能推动辽东半岛海洋经济区开发在全国海洋经济发展进程中力拔头筹。     

略论明朝的海洋政策

明朝的海洋政策具有外向性和内收性并存的特点。外向性集中体现在郑和下西洋时代 ,是时的海洋政策具有明确的海权意识和经略西洋的主观动机 ,是中国古代海洋事业的顶峰 ;内收性体现在贯穿明朝始终的海禁国策     

Fractional Price Matching Policies Arising from the Ocean Freight Service Industry

We consider a situation in which shippers (customers) can purchase ocean freight services either directly from a carrier (service provider)in advance or from the spot market just before the departure of an ocean liner. The price is known in the former case, while the spot price is uncertain ex‐ante in the latter case. Consequently, some shippers are reluctant to book directly from the carrier in advance unless the carrier is willing to “partially match” the realized spot price when it is lower than the regular price. This study is an initial attempt to examine if the carrier should bear some of the “price risk” by offering a “fractional” price matching contract that can be described as follows. The shipper pays the regular freight price in advance; however, the shipper will get a refund if the realized spot price is below the regular price, where the refund is a “fraction” of the difference between the regular price and the realized spot price. By modeling the dynamics between the carrier and the shippers as a sequential game, we show that the carrier can use the fractional price matching contract to generate a higher demand from the shippers compared to no price matching contract by increasing the “fraction” in equilibrium. However, as the carrier increases the “fraction,” the carrier should increase the regular price to compensate for bearing additional risk. By selecting the fractional price matching contract optimally, we show that the carrier can afford to offer this price matching mechanism without incurring revenue loss: the optimal fractional price matching contract is “revenue neutral.”     

Stabilization,birth waves,and the surge in the elderly*

Substantial regularities characterize the transition to stability that follows a shift from one set of vital rates to another. The new vital, rates interact with the population's initial age composition and generate birth waves whose amplitude and attenuation depend on the ratio of ultimate to initial growth and on the new pattern of stable net maternity. A greater change in growth and a later stable net maternity pattern produce larger fluctuations in the number of births. Stabilization begins at the youngest ages and proceeds upward. Sixty years after the shift, the birth waves have largely disappeared and the proportion under age 15 approximates the stable level implied by the new rates. Those patterns are manifest in the stabilization of both observed and Coale‐Demeny model stable populations.

When fertility falls, the new stable population has a larger fraction at all ages above (approximately) 30, with greater changes characterizing the extremes of life. Fifteen years after the fall, there is a trough in the number at ages 0–14. Sixty years after the fall, when the largest pre‐decline cohort is age 60–74 and the smallest post‐decline cohort is age 45–59, there is a surge in the relative size of the elderly population. Thus after two generations, the birth waves produced by a rapid decline in fertility accentuate the effects of population aging.     

普希金与海洋

俄国是一个后起的资本主义国家。它是从野蛮的内陆的封建农奴制走向海洋文明社会的。在古代的俄国的文学中,就已经出现对海洋的生动描写,但海洋形象大量出现还是在18世纪和19世纪,这与俄国地理环境的巨变密切相关,也是与启蒙主义和浪漫主义的思潮出现相关的。普希金的许多作品都描写或涉及了大海。普希金创作中的海洋形象和意义,与一个文学思潮和两个著名历史个性联系在一起的,这个文学思潮就是兴起于19世纪初期席卷欧洲大陆的浪漫主义文学思潮,而两个历史个性,一个是彼得大帝,另一个是拿破仑一世。普希金海洋主题和形象塑造对俄国文学的影响深远。普希金描绘海洋诗歌的美,不仅体现在这些诗歌作品的艺术形式上,也同样彰显在普希金可贵的人生价值观上,他歌颂自由,讴歌善良,同情下层民众,祈盼人民的解放,追求历史的进步。他的作品的思想主题与人类千百年来主流的价值观是相吻合的,一致的。     

模糊自动机在电磁波识别中的应用

研制了一个模糊处理和神经网络相结合的自动机,使用模糊技术从未处理的电磁信号波纹图像中处理模糊几何特征属性,进行波纹分类与识别。当使用模糊自动机(FA)进行识别紊乱波纹时,这些模糊几何特征是最好的。而对这些模糊几何特征的辨识,使用FA是很好的。