粤港澳大湾区海洋技术创新动态网络演化研究

海洋经济已经成为我国经济的重要组成部分,其增长极作用愈发显著.提高海洋技术创新能力与创新协同水平,推动海洋技术创新网络优化升级,对发展海洋经济、保护海洋生态具有重要意义.本文基于粤港澳大湾区11座城市1986～2018年海洋专利数据,运用动态网络分析的方法,从整体网络和关键实体两个层面出发,对3个不同阶段下的海洋技术创新网络进行研究.研究发现:粤港澳大湾区海洋技术创新网络规模不断扩大,但结构改善相对滞后;网络呈现出整体松散、局部紧密的特点.     

船舶柴油机教学改革与研究——以钦州学院为例

以"11规则"新的要求为导向,进行教学改革,在授课过程中,增加实践教学环节,实现理论结合实践,化抽象为具体,克服了船舶柴油机传统教学过程中理论脱离实际的弊端,为其他专业课教学改革提供了思路。     

激光熔覆在海洋工程上的应用现状

介绍了激光熔覆技术的原理与特点，重点综述了激光熔覆技术在海洋工程上的研究与应用现状，指出了激光熔覆技术在海洋工程上实际应用存在的问题。     

几种海洋动物的药用及其在临床上的应用

研究报告了牡蛎，贻贝，鲨鱼，海参，海胆的药效，对以这几种海洋动物为主要原料配制的药物的作用及用途作了简单论述。     

调距桨推进装置及其控制系统的建模与仿真研究

利用准稳态、循环平均值等建模方法,给出了包含MAN B＆W 6S35MC柴油机、调距桨、螺距调节液压伺服装置、DGS8800e数字调速器、MAN B＆W MC气动遥控系统以及Alphatronic 2000 PCS调距桨推进控制系统的实时仿真模型,开发了调距桨推进装置及其控制系统的仿真软件,给出了柴油机在不同负荷下的稳态和动态仿真曲线以及船舶在紧急倒航工况下调距桨推进装置的动态仿真结果.仿真计算与试验数据对比表明：模型能很好地预测调距桨推进装置及其控制系统在不同工况下的稳态和动态特性.     

Isolation and characterization of a new hemagglutinin from the red algaGracilaria bursa-pastoris

Summary A new agglutinin has been isolated from the red algaGracilaria bursa-pastoris by affinity chromatography on a yeast mannan-Cellulofine column. This agglutinin was isolated as a monomeric glycoprotein with a relatively low molecular weight. It had an isoelectric point of 4.7 and contained large amounts of Gly, Asx and Glx. It agglutinated trypsin-treated rabbit erythrocytes at the low concentration of 30 ng/ml. The activity was inhibited only by glycoproteins bearing N-glycans. This agglutinin also showed mitogenic activity for mouse splenic lymphocytes.     

Sibling species in the marine pollution indicator genus Pontonema Leidy (Nematoda: Oncholaimidae), with a description of P. mediterranea sp. nov.

Species of the marine nematode genus Pontonema have been found to dominate the macrobenthos under abnormally high conditions of particulate organic enrichment. Populations from organically enriched habitats in six localities (Kiel fjord, Germany; the Garroch Head sewage-sludge dump ground in the Firth of Clyde, Scotland; Cornelian Bay, N.E. England; the Tyne estuary, N.E. England; Sete, N.W. Mediterranean, France; Blanes Bay, N.W. Mediterranean, Spain) have been compared. Multivariate analyses of 16 morphometric characters in males, and 13 in females, shows that each population is significantly different morphologically from every other population. However, there is morphological overlap between the populations, and it is considered pragmatic to recognize three species in this group, based on a few stable morphological characters: P. vulgare (Bastian, 1865) from the Baltic, P. alaeospicula Bett and Moore 1988 from the UK sites, and P. mediterranea sp. nov. from the Mediterranean. P. mediterranea sp. nov. is described. The species were not found to have established sympatry in this study, unlike many other opportunistic taxa from organically enriched habitats, and the significance of this is discussed.     

Some anisakid nematodes from marine fishes of Japan and the North Pacific Ocean

A recent collection of anisakid nematodes from marine fishes from Japan and the North Pacific Ocean comprised a total of seven species of two genera; six of them (Raphidascaroides nipponensis Yamaguti, 1941, Hysterothylacium aduncum aduncum (Rudolphi, 1802), H. auctum (Rudolphi, 1802), H. cornutum (Stossich, 1904), H. marinum (Linnaeus, 1767) and H. physiculi sp. n.) parasitize fishes as adults, whereas one (Hysterothylacium sp.) occurred as larvae encapsulated in the host's abdominal cavity. Hysterothylacium physiculi sp. n. from the intestine of the gadiform fish Physiculus maximowiczi (Herzenstein) (family Moridae) from the western North Pacific (Kamaishi Bay, Honshu) is characterized mainly by shape of the lips, presence of well developed lateral alae starting some distance posterior to base of the lips, a short caecum, and markedly short (324-416mum) spicules. SEM study of R. nipponensis, type species of the genus, did not confirm the presence of dentigerous ridges on the lips. All species are briefly described and illustrated and some taxonomic problems are discussed. Several new host and geographical records are presented.     

New species of Copidognathinae (Acari: Halacaridae) from southern Africa

Three new species of Copidognathinae (Acari: Halacaridae) are described from the eastern coast of southern Africa (Mozambique; South Africa: Eastern Cape and KwaZulu-Natal). Copidognathus caloglossae sp. nov. and Acarothrix umgenica sp. nov. were collected in mangrove habitats, whereas Copidognathus xaixaiensis sp. nov. was collected on a rocky shore. Acarothrix umgenica represents the first record of the genus Acarothrix Bartsch, 1990 from the African continent.     

海洋石油降解菌不同固定化方法的研究进展

近年来,海洋溢油等事故频发使得海洋石油污染严重,给社会和人类本身带来危害,因此探索海洋石油污染的高效修复方法十分必要。微生物固定化技术修复石油污染土壤和石油污染水体已被广泛研究。简要介绍了微生物固定所使用的吸附、包埋和交联法及其适宜的载体,还有目前在固定化方法、添加营养元素和无机盐离子、载体材料方面对固定化技术的改进,以及海洋环境对微生物的影响,为固定化技术修复海洋环境提供基础。