Results 31 to 40 of about 1,452,075 (137)
Guangtongxin yanjiu, 2011 文章介绍了用已成缆光纤偏振模色散（PMD）系数估算链路PMD系数分布的3种方法:蒙特卡罗数值法、伽马分布分析法和模式独立分析法,从而计算出光缆链路PMD系数设计值（PMDQ）。通过3组样品说明了3种方法及其近似解的计算过程和适用条件,分析了PMDQ值与已成缆光纤PMD系数的关系。结果表明,决定PMDQ值的关键因素是已成缆光纤PMD系数的统计分布而不是其平均值。
李春生, 王宇亮, 刘骋
doaj
Assessing and quantifying variations in the functioning of marine food webs across scales
Conservation Biology, EarlyView.Abstract The mismatch between the scale of ecological processes and management decisions represents a significant challenge in marine conservation. This misalignment can result in ineffective conservation measures and compromise the sustainability of marine ecosystems.
Izaskun Preciado +16 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2013 为了考察国产Q460高强钢焊接箱形压弯构件的力学性能,以数值积分法和有限单元法对7个已有焊接箱形压弯构件试验进行了数值分析。试件宽厚比分别为8、12、18,长细比分别为35、50、80。介绍的数值模型中考虑了实测的初始挠度、初始偏心及残余应力对构件极限承载力的影响,采用简化的残余应力分布模型、实测残余应力分布与理想弹塑性材料模型、线性强化材料模型相组合,对Q460高强钢焊接箱形压弯构件的极限承载力与荷载-挠度曲线进行了数值计算。为了验证数值分析的准确性,将预测结果与已有试验结果进行了对比,分析结果表明 ...
闫晓雷, 李国强, 陈素文
doaj
International Journal of Applied Linguistics, EarlyView.ABSTRACT With the increasing number of Chinese international students in Australian universities, intercultural competence has become a critical factor influencing their interactions with Australian tutors in university classroom settings. Existing research often examines students’ intercultural competence from a single‐method or single‐perspective ...
Jiangyu Han, Linda Tsung
wiley +1 more source
Finetuning Pre‐Trained Language Models for Automatic Assessment of English‐Chinese Interpreting
International Journal of Applied Linguistics, EarlyView.ABSTRACT Recent years have seen growing interest in leveraging pre‐trained language models (PLMs) for automatic assessment of spoken‐language performance. Contributing to this emerging line of work, the present study offers the first attempt to finetune two PLMs, GTE‐multilingual and mmBERT, for assessing English‐Chinese interpreting, using over 1700 ...
Zhaokun Jiang, Chao Han
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Understanding learners’ English speaking self‐efficacy is essential for promoting effective oral communication in EFL contexts. However, variable‐centered research on English speaking self‐efficacy often overlooks heterogeneity among learners.
Cha Li, Lawrence Jun Zhang
wiley +1 more source
Public Administration, EarlyView.ABSTRACT As the public sector increasingly adopts AI‐powered automated decision systems (ADS), understanding how citizens experience and value ADS use in public decision‐making is both normatively and practically important. Therefore, we examine and compare the effects of seven attributes of public values on citizens' support for ADS adoption in two ...
Guimin Zheng +4 more
wiley +1 more source
四川大学学报. 自然科学版, 2003 采用模式识别中的K最近邻法(KNN方法)对不满足于统计模型的数据阵中的缺省值进行预测,预测以样本值作为预测参照 由于原始数据阵没有训练集,故采用对原始数据进行最大似然主成分分析(MPCA),获得的结论与KNN方法处理后的数据的主成分分析结论相比较,结果表明,两套数据分析得出的主因子数、因子负载阵基本一致,而因子得分阵有细微的差别 ...
李梦龙 +4 more
doaj
Latin American Policy, Volume 17, Issue 4, December 2026.ABSTRACT The public budget has been widely used as an indicator of government attention to measure the distribution of government priorities and the dynamics of budgetary changes across policy sectors. Shifting the debate and analytical locus on budget dynamics to Latin America, recent studies have applied the Punctuated Equilibrium Theory to the ...
Felipe Gonçalves Brasil +2 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2023 目的探讨磁共振表观弥散系数（ADC）评估磁共振引导聚焦超声术（MRgFUS）治疗子宫肌瘤效果的价值。方法回顾性分析佛山市中医院2018年1月至2022年10月期间56例接受MRgFUS治疗子宫肌瘤患者治疗前、治疗3月后和6月后的MRI及临床资料，比较患者病灶ADC值与肌瘤的体积，症状严重评分（SSS）和子宫肌瘤症状-生活质量问卷（UFS-QOL）评分的相关性。使用方差分析比较治疗前后相关数据的差异，采用Pearson法进行数据的相关性分析。结果56例患者治疗前及治疗3个月后、6个月后病灶ADC值［（1 ...
曾雪伟 +6 more
doaj +2 more sources