Marine

摘要： The Southern Ocean breeds a special ecosystem.The evolution and adaptability of Antarctic marine organisms is a key research field of the Scientific Committee on Antarctic Research.The study of the Antarctic marine ecosystem is also one of the tasks of Chinese National Antarctic Research Expedition(CHINARE).However,the early investigations by Chinese scientists mainly focused on plankton and benthos,as well as their environmental variables.Since 2019,financially supported by National Polar Special Program“Impact and Response of Antarctic Seas to Climate Change”(IRASCC),the research objects have been gradually expanded to large marine animal,such as birds and mammals,and other related disciplines.

摘要： 2022年4月19日,日本商船三井宣布,其全资子公司MOLCT与大宗商品贸易公司托克(Trafigura)及其船舶燃料供应合资公司TFG Marine签署谅解备忘录,共同研究在世界各地的加油港为MOLCT运营的船舶全面供应生物柴油燃料。通过此次合作,商船三井希望为MOLCT运营的船队建立一个全球性的生物柴油燃料供应。作为联合研究的一部分,MOLCT已经在其运营的化学品船“Niseko Galaxy”号上使用TFG Marine提供的生物柴油燃料进行了海上试验。该船于3月初在荷兰鹿特丹港装载了大约200公吨生物柴油燃料,前往美国墨西哥湾沿岸。

摘要： 新课标(2020年修订版)提出,核心素养的培养需重视现代地理信息技术,从而提高学生解释地理事物现象与认识自然环境的能力。Marine Traffic(全球船舶追踪网站)是一款为船舶航行提供天气信息、船舶信息、港口信息、航线规划等服务的网站,与地理教学高度契合。目前,该网站应用于地理教学的相关研究较少。因此,本文探讨如何借助Marine Traffic网站功能培养中学生的地理核心素养。

摘要： The higher dynamics in the climate change became quite visible in the last decades.Although there are still theories assuming these changes to the cyclic character of the climate,it is obvious that this dynamics is also driven to a large extent by the human activities.According to the Intergovernmental Panel on Climate Change(IPCC),which is the United Nations body for assessing the science related to climate change,various climate scenarios have been designed.

摘要： The introduction of non-indigenous species(NIS),de­liberately or unintentionally,by means of human action,is considered one of the major threats to biodiversity and ecosystem functioning worldwide[1].Some of these spe­cies successfully establish,spread rapidly into new loca­tions,and become invasive,altering ecosystem services and causing both significant ecological and socio-econom­ic impacts[1,2].

摘要： Shale gas is an unconventional natural gas,clean and efficient.The effective development and utilization of shale gas not only effectively ensures national energy security,but also protects the environment by reducing CO_(2) emissions.China is rich in shale gas resources According to research,it is predicted that there are 11.10×10^(12)-14.18×10^(12)m^(3) of technically recoverable shale gas resources.

摘要： The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research results on oceanography and marine fisheries.The fields covered include the physical,chemical,biological,geo-logical,environmental,engineering and technological aspects of these sciences.

摘要： In the aftermath of the terrorist attacks on 11 September 2001,a great lull fell over North America,above and below the water.Understandably,fewer people were traveling by air.But ship traffic was also significantly reduced,even as far north as the Bay of Fundy in Canada.As a result,underwater noise in the bay dropped by an incredible six decibels,and sounds at pitches below 150 Hz were significantly reduced.

摘要： Environmental loads that act on marine structures are highly non-deterministic in general.Estimating these loads is a basic requirement for their structural design,but their response is far beyond just counteracting the loads[1,2].The marine environment poses more challenges starting from the choice of material,structural form,design meth­ods,construction techniques,inspection methods,repair,and retrofitting.

摘要： The atmospheric corrosion behavior of new-type weathering steels(WSs)was comparatively studied,and the effects of Nb and Sb during corrosion were clarified in detail through field exposure and characterization.The results showed that the addition of Nb and Sb played positive roles in corrosion resistance,but there was a clear difference between these two elements.Nb addition slightly improved the rust property of conventional WS but could not inhibit the electrochemical process.In contrast,Sb addition significantly improved the corrosion resistance from the aspects of electrochemistry and rust layer.Compared with only 0.06wt%Nb,the combination of 0.05wt%Sb and 0.06wt%Nb could better optimize the rust structure,accelerate the formation of a high proportion of dense and protectiveα-FeOOH,repel the invasion of Cl−,and retard the localized acidification at the bottom of the pit.