Results 41 to 50 of about 322,172 (167)
Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
wiley +1 more source
Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
高温射流流场计算是尾焰辐射目标特性计算的前提,然而由于缺少可靠实验数据,针对湍流超声速射流的数值模拟多集中于低温射流,高温射流计算与实验的对比工作还很少见。本文利用k-ωSST双方程湍流模型,模拟了多个典型超声速射流实验的流场速度与温度分布,通过与实验结果进行对比,建立了一种超声速射流计算方法。首先,通过对比多个低温射流的实验与计算结果,探索了湍流模型中可压缩修正以及来流湍动粘性比对超声速射流计算结果的影响;进而,针对火箭发动机尾焰实验,计算尾焰流场与流场红外辐射 ...
万田, 丛彬彬, 樊菁
core
ABSTRACT Early diagnosis of liver cancer demands high sensitivity, high specificity, convenience and real‐time monitoring capabilities. However, it encounters challenges such as low concentration of markers, numerous interfering factors, and limitations of detection technologies.
Changsheng Shi +10 more
wiley +1 more source
为了提高RFID测温芯片在电缆实际工况中的实用性,文中提出了一种10 k V三芯电缆的温度反演计算方法。该方法基于标准IEC 60287和JB/T 10181建立电缆热路模型,并通过RFID芯片的测量温度反演计算电缆导体的温度。文中首先进行了电缆升流与测温实验,然后建立了有限元计算模型,并对实验结果、仿真计算结果和反演计算结果进行了对比校验分析。结果表明:RFID测温芯片的测量相对误差最大值在4.5%左右,其测量可靠性满足现场应用的精度要求。同时 ...
陶霰韬 +7 more
doaj
ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao +6 more
wiley +1 more source
Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid
ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao +7 more
wiley +1 more source
Hierarchical Structured TiO2/Boron‐Doped Diamond for Efficient Photo‐Electrocatalytic Degradation
ABSTRACT The discharge of refractory organic dye wastewater poses a significant threat to the ecological environment, necessitating the development of efficient treatment technologies. Herein, a uniform TiO2 array (TiO2‐AR) electrode is fabricated using a combination of magnetron sputtering and a mask plate process with a boron‐doped diamond (BDD ...
Haiming Sun +10 more
wiley +1 more source
模糊系统是一种可解释性强的人工智能方法,经典Wang-Mendel(WM)方法因能从数据中自动获取模糊规则,而成为一种重要的智能建模方法。但是该方法存在规则数目较多、精度不高等不足,且目前的改进方法普遍存在计算复杂、效率低等问题。为此,提出一种改进遗传算法与基于支持度的规则约简相结合的模糊系统优化建模新方法——遗传模糊系统(GFS),通过优化模糊系统的结构及隶属函数参数,由目标函数的不同组合构成GFS1、GFS2与GFS3这3种模型的具体实现算法。在标准及加噪的电能输出数据集上进行模糊建模试验 ...
杜宏庆 +4 more
doaj
A survey of depth learning methods for detecting lung nodules by CT images(应用于平扫CT图像肺结节检测的深度学习方法综述)
肺癌是一种致死率很高的癌症.通过肺部平扫CT影像检测肺结节对肺癌早期诊断、治疗意义重大.全面介绍了 一种革命性的图像识别技术——深度学习方法,在肺结节检测中的应用.首先,横向对比了不同卷积神经网络的结构及其在图像识别上的效果,其次着重分析了不同深度学习方法在训练肺结节分类器上的应用,包括faster-RCNN、迁移学习、残差学习以及迁移学习.还介绍了一些可用的肺部CT影像数据集供读者参考.
HUWeijian(胡伟俭) +5 more
doaj +1 more source

