Results 41 to 50 of about 25,079 (167)
A JOINT INVERSION ALGORITHM FOR THIN LAYER IDENTIFICATION USING CEPSTRUM [PDF]
, 2014 为解决层状介质探地雷达信号频率域反演算法中存在薄层识别问题,提出一种利用倒频谱辨别薄层的联合反演算法。为了可以在没有任何先验信息的前提下,对地下薄层进行识别,引入了新的实(虚)部倒频谱,这两种倒频谱上的峰值对应地下各反射面。通过将反射系数序列频谱的虚部进行相位移动,并将结果与实部相加后,计算两者之和的倒频谱。将两者之和倒频谱上的峰值与实(虚)部倒频谱峰值进行对比,可以判断该峰值位置是否存在薄层,从而可为谱反演算法提供正确的反射面位置信息。A joint inversion method using ...
吴楠, 黄忠来
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ABCA12 Frameshift Deletion in Domestic Cats With Ichthyosis Fetalis
Veterinary Dermatology, EarlyView.ABSTRACT Background Ichthyosis fetalis (IF), also known as harlequin ichthyosis, is a rare and often fatal autosomal recessive congenital skin disorder. It is characterized by thickened, hard skin plaques and deep skin fissures that limit mobility and cause malformations of the eyes, lips and ears.
Jeanna M. Blake +2 more
wiley +1 more source
[[abstract]]本文結合一階層板理論與Partial Hybrid Stress Method,PHSM),對直交異向性 積層板而言,可修正Hellinger-Reissner principle,於撓曲部分包含.sigma.x, .sigma.y,.tau.xy,橫向剪力部分 (.tau.xz,.tau.yz)則以橫向剪應 力場假設之,經由修正的Hellinger-Reissner principle可推導得PHSM的元素勁度矩陣為撓 曲部分之位移法勁度矩陣與橫向剪力部分之 ...
[[alternative]]Tseng, Y. P., 曾一平
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How New Issues Become Polarized: Partisan Triggers and Subsystem Shopping in Early AI Policymaking
Policy &Internet, Volume 18, Issue 1, March 2026.ABSTRACT Early AI policymaking in the United States appeared bipartisan, but subsequent developments raise the question of whether AI policy will become more polarized over time. To examine how partisanship takes root around novel policy issues, we perform a mixed‐methods study, analyzing survey data from 129 state legislators in 44 states and ...
Robin Jacobson +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Low conductivity and poor oxygen reduction reaction (ORR) catalytic activity limit the bifunctional catalytic performance of layered double hydroxide (LDH) in zinc–air batteries. In this work, an efficient bifunctional electrocatalyst was prepared by loading nitrogen and phosphorus co‐doped carbon quantum dots (NPCQDs) onto a cationic‐vacancy ...
Wenhao Tang +4 more
wiley +1 more source
ローラ駆動される球体の運動学及びその搬送制御に関する研究 [PDF]
, 2018 九州工業大学博士学位論文（要旨）学位記番号：生工博甲第318号 学位授与年月日 ...
筑紫 彰太
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Optimized Copper Distribution and Enhanced Coercivity in PrO2‐Doped Sm2Co17‐Type Magnets
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT A rational design of Cu distribution is crucial for achieving optimal magnetic properties in Sm2Co17‐type magnets. In this study, nanostructured PrO2 powders were employed to induce Cu redistribution at grain boundaries while preserving the cellular microstructure. The corresponding coercivity (Hcj), remanence (Br), and maximum energy product (
Qi‐Qi Yang +5 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 1987 本文报告自1964～1981年经外科治疗的女性单侧乳腺癌1656例,随访1—18年(中位11年),有128例发生骨转移,骨转移率为7.7％。骨转移的主要部位为脊柱(46.6％),肩胛带(15.1％),骨盆带(10.9％),显示乳腺癌的骨转移与肋间——脊椎静脉系统密切相关。本组术后发生骨转移的中位时间为22个月,发现骨转移后的中位生存时间为7个月。影响乳腺癌术后骨转移的主要因素为乳腺癌的病理组织学类型及区域淋巴结转移情况。作者认为预访和减少乳腺癌骨转移率的切实可行的措施是早期发现、早期诊断、早期治疗 ...
詹友庆
doaj
[[alternative]]Investigation of Effects on Dynamic Characteristics for Piezoelectric Materials Due to Quasi-Hyperbolic Approximation and Functionally Graded Properties [PDF]
計畫編號：NSC96-2221-E032-044研究期間：200708~200807研究經費：400,000行政院國家科學委員會結案報告[[abstract]]本三年期計畫將探討半雙曲近似與功能性梯度性質對壓電材料動力 破壞之影響，半雙曲線近似假設乃是忽略壓電材料旋轉電場之影響，但卻 維持光速為有限值之假設，比半靜定假設更接近材料真實之情況。第一年 擬研究在半雙曲線近似假設下，一含裂紋之壓電材料受反平面應力與平面 電位移承受穩態振動負載之動力破壞問題，將求得不同振動頻率負載下之 ...
應宜雄
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Gaoya dianqi, 2018 GIS长母线在运行过程中,由于安装状态、气候环境等因素会导致母线筒体位移及部分区域应力集中。文中所研制的GIS长母线位移监测系统能够实时监测母线筒体的轴向、径向以及相对于地面的高度位移,同时基于所采集数据源进行多维度分析,研判位移趋势,对GIS长母线运维及安全稳定运行提供辅助参考。
蒋晓旭
doaj