Results 21 to 30 of about 1,331,409 (150)
, 1982 本文用连续介质力学的理论分析了岩石屈服前的性状,导出了岩石介质的非线性弹性的本构方程并与试验资料进行了比较,结果令人满意。进而用非线性弹性取代一般帽盖模型中关于弹性区的线弹性假设,给山了一个新的非线性弹性 ...
章根德, 钱寿易
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Trust in the Machine? Practitioner Perspectives on the Role of AI in Online Content Moderation
Policy &Internet, Volume 18, Issue 3, September 2026.ABSTRACT The scale and volume of user‐generated content produced in the Web 2.0 era have led to content moderation becoming an essential aspect of most online platforms' business models. This form of digital labour is often performed by human content moderators (CMs) in the Global South, however, artificial intelligence (AI) technology has increasingly
Elena Martellozzo +4 more
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Dianci bileiqi, 1992 提出了SiC非线性电阻的导电模型.利用半导体理论分析了SiC非线性电阻的静态及动态伏安特性,认为SiC非线性电阻的伏安特性是由形成SiC非线性电阻的两大组分—SiC、结合剂共同决定的.
贺西民
doaj
Nonlinear free vibration analysis of Timoshenko beams with porous functionally graded materials
Xibei Gongye Daxue Xuebao, 2022 基于Timoshenko梁变形理论研究多孔功能梯度材料梁的非线性自由振动问题。针对多孔功能梯度材料梁的孔隙均匀分布和孔隙线性分布2种形式, 根据广义Hamilton原理推导多孔功能梯度材料Timoshenko梁的非线性自由振动的控制微分方程组并对方程组进行无量纲化。采用微分变换法(DTM)对各种边界条件下的控制微分方程组进行变换, 得到等价代数特征方程。计算了多孔功能梯度材料Timoshenko梁在固支-固支(C-C)、固支-简支(C-S)、简支-简支(S-S)和固支-自由(C-F ...
TENG Zhaochun, MA Lingquan, FU Xiaohua
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Aiming at the problems of insufficient forming quality and poor surface performance in the preparation of Ti‐6Al‐4V alloy by laser powder bed fusion (LPBF), this study proposed a laser in situ forging additive manufacturing (LIF‐AM) technology, which integrates LPBF with femtosecond laser in situ shock forging and realizes defect control and ...
Peng He +10 more
wiley +1 more source
, 2005 解释土体强度非线性的物理本质,结合常规直剪试验、三轴试验结果,给出了几个非线性强度准则的确定方法,其中,强调优化处理的作用。接着,基于Janbu普遍条分法,运用SPREADSHEET模板程序,提出一个能将非线性强度准则逐点等效到Mohr-Coulomb直线强度准则处理上的迭代方法,准确方便地获得了非线性强度下的边坡稳定性分析 ...
王建锋
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Gaoya dianqi, 2001 介绍了非线性负荷的种类及其用电特性 ;分析了非线性负荷对电力系统及电器设备的危害 ;提出了分析非线性负荷时所采取的数学模型 ,论述了在解决实际问题时非线性负荷的处理方式。
薛军, 汪鸿, 华峰, 刘军成
doaj
World Medical &Health Policy, Volume 18, Issue 3, September 2026.ABSTRACT The integration of artificial intelligence (AI) in healthcare is rapidly evolving, offering immense potential to transform service delivery, diagnostics, and health systems governance. However, Sub‐Saharan Africa faces significant readiness challenges due to limited infrastructure, capacity gaps, and fragmented digital strategies.
Said Baadel +3 more
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四川大学学报. 自然科学版, 1998 ＫＴｉＯＡｓＯ４（ＫＴＡ）晶体是一种新型的性能优良的铁电晶体，它的电光效应和非线性光学效应尤为突出，使得它在光电子技术及非线性光学领域有一系列重要应用［１］．ＫＴＡ与另一种已知的性能出众的非线性光学材料ＫＴｉＯＰＯ４（ＫＴＰ）相比，具有更高的非线性光...
廖宇, 焦志峰, 唐林昌, 徐晓非
doaj
World Medical &Health Policy, Volume 18, Issue 3, September 2026.ABSTRACT This study examines the association between catastrophic health expenditure (CHE) and distress financing among India's uninsured “missing middle,” a population largely excluded from public insurance schemes and private coverage. While healthcare‐induced financial hardship is well documented, evidence on subsequent coping strategies among this ...
Neha Parikh +1 more
wiley +1 more source