Results 11 to 20 of about 254 (80)

Design and Implementation of a Medical Question and Answer System Based on Deep Learning

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Medical services play a pivotal role in people’s lives and in the national economy. Although the number of healthcare facilities is currently growing every year, there are still major problems in terms of access and pressure on the flow of people. Therefore, there is an urgent need for complementary medical services to alleviate the flow of patients ...
Yun Hu   +8 more
wiley   +1 more source

Starvation Affects the Muscular Morphology, Antioxidant Enzyme Activity, Expression of Lipid Metabolism‐Related Genes, and Transcriptomic Profile of Javelin Goby (Synechogobius hasta)

open access: yesAquaculture Nutrition, Volume 2022, Issue 1, 2022., 2022
Fish in natural and cultivated environments can be challenged by starvation. However, inducing starvation in a controlled manner cannot only reduce feed consumption but also reduces aquatic eutrophication and even improves farmed fish quality. This study investigated the effects of starvation on the muscular function, morphology, and regulatory ...
Xiangning Chen   +12 more
wiley   +1 more source

Effect of Gallic Acid on Muscle Quality and Myoglobin Conformation in Bluefin Tuna(没食子酸对蓝鳍金枪鱼肌肉品质及肌红蛋白构象的影响) [PDF]

open access: yesShipin kexue jishu xuebao
In order to study the effects of gallic acid (GA) on muscle quality and myoglobin conformation of bluefin tuna during refrigerated storage (4℃), different concentrations of GA (200mg/kg and 400mg/kg) were used to treat bluefin tuna and analyzed the ...
BU Ying(步营)   +6 more
doaj   +1 more source

基于深度学习的南海东北部亚中尺度过程识别与分析研究

open access: yesHaiyang yu huzhao
亚中尺度过程是海洋学研究的前沿热点领域,从高分辨率资料中实现亚中尺度信号的快速提取对开展亚中尺度动力学研究具有重要意义。为此,根据亚中尺度过程的物理特性,提出一种基于深度学习的自动识别方法,构建了基于U-Net网络的海洋亚中尺度过程识别网络(submesoscale processes automatic identification network, SM-Net),该网络采用视觉几何组网络作为主干特征提取网络并引入改进的混合注意力模块以提升识别能力。基于高分辨率MITgcm ...
金 宇涛, 缪 明芳, 张 志伟
doaj   +1 more source

Electron Extraction Optimization for Carbon‐Based Hole‐Conductor‐Free Perovskite Photovoltaics With Record 1.41 V VOC

open access: yesAdvanced Materials, Volume 37, Issue 26, July 3, 2025.
A gradient electron energy level strategy is constructed to reduce voltage losses in planar HTL‐free CsPbI2Br C‐PSCs. This electron extraction optimization enables rapid photogenerated electron extraction and carrier separation, thereby suppressing recombination at the back contact. The resulting PSCs deliver a record VOC of 1.41 V, a high PCE of 17.42%
Zhiqi Li   +13 more
wiley   +1 more source

China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition

open access: yesAntipode, Volume 57, Issue 3, Page 830-861, May 2025.
Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
wiley   +1 more source

台湾海峡不同环境介质中藻毒素的污染现状分析

open access: yesHaiyang yu huzhao
藻毒素是由海洋微藻产生的一类代谢产物,广泛分布于不同环境介质中,潜在威胁海洋生物与人类健康,以及水产养殖业的持续发展。台湾海峡渔业资源丰富,生物种类繁多,是我国重要的渔业养殖区。为进一步了解台湾海峡不同环境介质中常见藻毒素的污染现状,于2022年4月采集了浮游植物、海水和沉积物样品,应用液相色谱-串联质谱法(LC-MS/MS)进行分析。结果表明,浮游植物样品中软骨藻酸(domoic acid, DA)、大田软海绵酸(okadaic acid, OA)和鳍藻毒素-1(dinophysistoxin-1 ...
李 东岳   +5 more
doaj   +1 more source

Spatial and temporal distribution on fishery resources of marine pasture demonstration area in Xiangshan Harbor(象山港海洋牧场示范区渔业资源的时空分布)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2012
根据2010年春、夏两季对象山港海洋牧场示范区海域渔场调查的资料,分析了示范区海域渔业资源的时空分布、群落结构、资源密度等.调查中共有渔获物63种,其中鱼类29种、虾类19种、蟹类12种、头足类3种.无论在种类数、重量和尾数渔获量以及在重量和尾数资源密度上,夏季都明显高于春季.春、夏两季度,渔业资源平均品种重量和资源密度蟹类最高,为78.864 kg • km-2,其次是虾类、鱼类、头足类;平均品种尾数资源密度虾类最高,为2.976 5× 104 ind • km-2, 其次是鱼类、蟹类、头足类 ...
TANGFeng-hua(唐峰华)   +3 more
doaj   +1 more source

Uncovering Xi Jinping's Policy Agenda: Text As Data Approach

open access: yesThe Developing Economies, Volume 63, Issue 1, Page 9-46, March 2025.
How many agendas has Xi Jinping put forth and promoted since taking office in 2012, and what are the types of agendas? How much of political attention has each agenda received, and how has the allocation of attention changed over time? We utilize a dataset of presidential statements, speeches, and reports from 2012 to 2022 and employed automated text ...
Jaehwan Lim, Asei Ito, Hongyong Zhang
wiley   +1 more source

东南太平洋赤道海域茎柔鱼(Dosidicus gigas)雌雄性比变化及与海域环境的关系

open access: yesHaiyang yu huzhao
雌雄性比作为有性生殖生物种类繁衍的基础,是物种种群维持的关键。选取2017~2019年1~9月我国远洋鱿钓作业渔船在东南太平洋赤道海域捕获的茎柔鱼渔获样本,分析雌雄性比的时空变化,并利用混合模型分析雌雄性比与栖息海域环境因子的关系。结果显示,茎柔鱼的总体雌雄性比在1∶1至4.67∶1之间,随着月份推移呈下降趋势;成熟群体的雌雄性比在0∶1至0.34∶1之间,随着月份推移呈增大趋势;总体雌雄性比与性成熟个体占比呈负相关关系,而在性成熟个体占比>10%时成熟群体的雌雄性比呈增大趋势。同时 ...
梅 勇杰, 林 东明
doaj   +1 more source

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