Results 71 to 80 of about 106,544 (192)
, 2013 针对水土流失预测的多因素及非线性等特征,引入自适应模糊神经推理系统(Adaptive network-based fuzzy inference system,ANFIS),对自然降雨条件下不同生态措施的水土流失规律进行了预测。结合MATLAB模糊推理工具箱,以试验站2001—2005年的51场降雨为训练样本进行学习训练,以2008年观测的10场降雨为检验样本进行验证,结果表明:4个处理(百喜草全园覆盖、百喜草覆盖果园、清耕果园和裸露对照)的径流预测的平均相对误差的绝对值分别为17.04%、18.89%、
赵成义 +4 more
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Compliance in Regulatory Gray Areas: The Case of the Organic Seed Standard
Policy Studies Journal, EarlyView.ABSTRACT Adaptive regulations, designed to balance flexibility with accountability, can embed provisions that unintentionally leave room for firms to shirk on their responsibilities by exploiting flexibility. We call these provisions “regulatory gray areas,” and ask: how should we understand (non‐)compliance in adaptive regulatory settings?
Liza Wood +3 more
wiley +1 more source
, 2016 本发明公开一种不确定时延条件下机械臂运动状态的预测方法，包括：对于机械臂的各关节，建立预测模型及对应的离散模型；计算下行时延的估计值，并利用各关节的预测模型，计算各关节的运动状态的预测数据；根据所述运动状态的预测数据，和接收自位于远端的机械臂的实测数据，对所述机械臂各关节的预测模型对应的离散模型进行修正；并利用修正后的离散模型，得到当前时刻修正后的机械臂各关节运动状态的预测值。本发明实施例还公开一种不确定时延条件下机械臂运动状态的预测装置。采用本发明实施例，能够提高机械臂运动状态的精确度 ...
张珩, 马欢, 李文皓
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Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT The study aimed to investigate the cultural and gender differences in the attitudes of Israeli Jews and Israeli Arabs toward homosexuality. A self‐reporting questionnaire was completed by 519 participants. A significant difference was discovered between Jewish and Arab individuals, with those who had prior familiarity with the lesbian, gay ...
Vered Ben David, Felix Kaplan
wiley +1 more source
, 2012 害虫危害是制约农业生产持续稳定发展的重要因素之一,我国每年粮食、棉花两大作物的害虫危害损失分别约为3000多万吨和60多万吨。实现区域性、网络化的农作物害虫的监测和预警,将有效地提升我国有害生物的管理水平。 本项目在信息技术和害虫生物生态学研究基础上,构建了新疆地区棉花主要害虫区域性、网络化监测和预警系统,解决了农作物网络化监测和管理中的关键技术。 1、利用自动化气象站和害虫自动化监测系统,对病虫害的部分数据实现自动化采集; 2、构建了区域性害虫生物数据库系统 ...
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The underappreciated roles of fog and dew on vegetation and biocrusts
New Phytologist, Volume 251, Issue 1, Page 46-63, July 2026.Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1995 用１１项肝功能试验预测１０３例原发性肝癌合并肝硬变病人的手术前肝储备功能。对照术后恢复状况，对这些检查采用多因素判别法（Ｆｉｓｈｅｒ＇ｓ法）分析。推导出两个方程式。用Ｙ１方程式预测病人术后是否出现肝功能损害，Ｙ２方程式预测肝功能损害的程度。用方程式回代，两个方程式的预测准确率分别为８８．０％和８３．１％。为了更准确地预测肝储备功能，我们设计了二步判别法，其预测敏感性、准确性和阴性预测值均高于Ｐｕｇｈ法（Ｐ＜０．０５）。再用此法对另外一组病人（ｎ＝６０）作术前预测，准确率分别为８３．３％和７７．８％。
doaj
Gongye shui chuli, 2007 重点对地表水质预测模型的几种人工智能方法进行了评述，具体说明了BP神经网络水质预测模型、地表水COD灰色预测模型、时间数列预测方法及WASP5模型系统等方法的原理和特点。并提出地表水质预测模型WASP5与GIS系统集成的趋势,建立水质自动监测系统是我国水质现状和社会发展的需要,并分析了发展水质自动检测系统的方法及可行性。
王志红, 孙超
doaj
, 2013 随着世界各国对矿产资源的需求量越来越大和找矿难度的日益增大，找到高效的成矿预测方法迫在眉睫.GIS这一高新技术的出现，为成矿预测理论方法的发展起到了促进的作用.本文主要总结了GIS技术在成矿预测中的应用现状、以及基于GIS技术在成矿预测中应用的主要方法 ...
周曙光 +5 more
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Does the Community Understand the Community Guidelines?
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT Amid continued public controversy and political debate about online speech governments and civil society have pushed social media platforms to increase transparency around how they regulate speech, through community guidelines and content moderation systems, to support users to hold companies accountable for content removals.
Friederike Quint +4 more
wiley +1 more source