Results 51 to 60 of about 30,525 (149)
四川大学学报. 自然科学版, 2011 作者提出了潜半参数回归模型及其估计方法.该方法应用双重判罚,使得在估计非参数的同时可以对参数部分进行参数估计和变量选择.在分析过程中作者还得到了潜变量的估计值.
吴凤妹
doaj
Challenges in Advancing LGBTQ+ Equity and Research in Southeast Asian Countries: A Brief Report
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT This brief report provides preliminary findings on the challenges faced by academics, community workers, and other individuals involved in LGBTQ+ rights activism and research in Southeast Asia (SEA), with larger shares of participants from the Philippines, Malaysia, Thailand, and Vietnam.
Viet D. M. Trinh +2 more
wiley +1 more source
Dianci bileiqi构建精确的隔离开关电弧阻抗模型是提升VFTO仿真准确度的核心环节。然而，在击穿过程中间隙气压、温度等因素的动态变化会导致电弧模型阻抗参数具有不确定性。因此，深入研究不确定性参数对VFTO的影响具有重要意义。本研究基于电磁暂态程序ATP-EMTP构建隔离开关分段电弧模型，分析了电弧阻抗参数变化对VFTO峰值、陡度及上升时间等特征参数的影响，并采用Sobol’全局灵敏度分析法量化了VFTO特征参数对各参数的灵敏度。计算结果表明：稳态电弧电阻和击穿延时对VFTO的峰值、陡度及上升时间有显著影响 ...
刘青 +4 more
doaj
四川大学学报. 自然科学版, 2009 脚型自动测量的目的是提取与制鞋相关的特征参数,并用这些特征参数指导鞋楦的设计,制造出合脚的鞋.使用脚型三维扫描仪,获得了脚的三维数字模型.详细描述了主要特征参数的定义,提出了在未做标记的情况下特征参数的提取方法,结合实际脚型测量给出了测量结果.特征参数的自动提取可为个体化鞋楦的设计和量脚制鞋提供必要的数据支持.
胡安铎 +3 more
doaj
Dizhen xuebao, 2018 以SMART-1台阵第45号地震的南北分量加速度作为研究对象，计算截止频率fcut分别为8，16和24 Hz，台站间距分别为200，1 000和2 000 m这9种工况的相干系数，并进行曲线拟合，再根据9组拟合参数计算相应的相干系数并进行比较。结果表明：① 截止频率fcut的取值对相干函数统计模型参数和相干系数拟合曲线有很大影响；② 根据较小的截止频率fcut得到的拟合参数计算出的相干系数随频率的衰减很快，反之，根据较大的截止频率fcut得到的拟合参数计算出的相干系数随频率的衰减较慢；③ ...
Haiping Ding, Yi Luo, Weibo Rao, Yue Zhu
doaj +1 more source
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
Gaoya dianqi, 2016 变压器油纸绝缘系统的介质响应特性可以用扩展德拜模型等值电路来描述,研究变压器油纸绝缘系统等值电路参数的辨识方法具有十分重要的意义。文中提出一种应用极化电流辨识变压器油纸绝缘系统扩展德拜等值电路参数的方法,利用极化电流曲线末端主要取决于大时间常数指数项的特点,先在曲线末端不为零处选取初始点计算得到大时间常数支路参数的估计值,再以估计值为基础进行多次修正计算,待参数计算值稳定后再进行检验计算,从而求得各个参数较为准确的数值解;逐条计算,可以求出所有极化支路的参数 ...
蔡锋, 江修波, 蔡金锭
doaj
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT Digital communication has facilitated freedom of expression in various contexts worldwide. Digitalized communication is a form of expression that has become the norm worldwide despite cybercrime and other challenges. Communication preferences for social media determine attitudes to reporting crime.
Nomsa Ingrid Zikalala
wiley +1 more source
Curve desigh of multi-parameter uniform B-spline blending function of order four(多形状参数的四阶均匀B样条曲线设计)
Zhejiang Daxue xuebao. Lixue ban, 2007 给出带有四个形状参数的四阶均匀B样条调配函数，它以三次均匀B样条基函数为特殊情况.基于所给出的调配函数，得到带多个形状参数的分段多项式曲线的生成方法.通过改变形状参数的取值，可以调整曲线的形状.选取不同的形状参数值，可以得到不同位置的C2连续曲线，这些曲线与三次均匀B样条曲线有相同的端点性质，并且给出曲线设计的实例.
ZUOChuan-gui(左传桂) +1 more
doaj +1 more source
Sexuality, Gender &Policy, Volume 9, Issue 3, August 2026.ABSTRACT This article examines transmasculine pregnancy as a critical lens through which to analyze the intersections of cisnormativity, reproductive governance, and reproductive citizenship within healthcare systems. While existing research has documented barriers faced by transgender populations, less attention has been paid to how institutional and ...
Letícia Carolina Boffi +1 more
wiley +1 more source