Results 41 to 50 of about 622,398 (259)
Æ E Æ Å – Reshaping the Role of Træna Fishermen
This diploma project aims to strengthen the viability of Træna’s community by proposing an ocean research facility in the archipelago, enabling the next generation of local fishermen to collect oceanographic data while working at sea. The idea of the fisherman as oceanographer is inextricably linked to the architectural program on the island of ...
openaire +1 more source
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
根据一些常用的土壤持水经验模型(VG模型、BC模型和CP模型)推求用于估算非饱和导水率函数的表达式,并采用田间实测的导水率数据与模拟估值进行对比.结果表明这些估算模型适宜用来描述细质地以上土壤的非饱和导水特性,且VG模型的估值效果要好于其他模型.当满足使用条件时,间接估值法可获得较好的模拟估值精度.
许迪 Mermoud A
doaj
Regulatory compliance and support for altered management of the exotic pet trade
Abstract Globally, the exotic pet trade has contributed to species invasion, disease, and animal welfare risks. Although scientists have advocated for increased trade regulation, the success of management and regulatory efforts depends on compliance by participants in the exotic pet trade. We used a regulatory compliance framework to investigate exotic
Elizabeth N. Pratt +3 more
wiley +1 more source
建立了大载荷电磁线圈发射器的数学模型,结合相似原理推导了原型发射器与缩比模型各动态特性参数间的相似关系。根据实验条件确定了原型与缩比模型的相似比例系数并建立了EMCLHL缩比模型,通过仿真计算得到的结果证明了原型和缩比模型动态特性规律呈比例关系,且满足模型设计条件中各物理量的相似比例关系,相似模型条件是成立的。
王旻, 曹延杰, 邹本贵, 黄达
doaj
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando +54 more
wiley +1 more source
Estimating the total mortality of seabirds following a marine heat wave
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers +3 more
wiley +1 more source
雷电流数学模型的选择及仿真分析,对感应雷过电压的研究具有重要的意义。对目前感应雷过电压研究领域应用广泛的双指数函数模型,Heidler函数模型,脉冲函数模型3个函数模型,从雷电流的全波、波头两个方面做仿真分析,一阶导数做理论分析,并引入更加精确的双Heidler模型,进行对比分析。总结4种模型各自的优缺点,说明双Heidler模型的精确性及可行性,有助于雷电流模型的选择及感应雷过电压的进一步研究。
陈炜炜, 周懋坤, 詹跃东, 王磊
doaj
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
本发明提供了一种三维模型打印系统及三维模型的成型方法。该三维模型打印系统包括:工控机;驱动装置,所述驱动装置与所述工控机电连接,所述工控机控制所述驱动装置运动;以及喷嘴阵列,所述喷嘴阵列包括n行×m列个的喷嘴,其中,n≥1,m≥1,第n行中的第m个所述喷嘴的轴线和第n+1行中的第m或m+1个所述喷嘴的轴线之间存在距离,所述工控机控制所述驱动装置带动所述喷嘴开启或者关闭,解决了打印速度与打印精度不能兼容的技术难题 ...
张远明, 张文武
core

