Results 21 to 30 of about 157 (72)

钢塔-组合塔混合结构结合部承载性能试验研究

Jianzhu Gangjiegou Jinzhan
针对新型钢塔-组合塔混合结构结合部构造，开展了局部缩尺模型轴压试验，并建立了非线性有限元模型与试验结果进行比较。研究了钢塔-组合塔结合部的极限承载力以及破坏形式，探究了钢板应变分布规律和焊钉受力分布规律，并对传力路径和荷载分担比例进行了变参数分析。研究结果表明：新型钢塔-组合塔混合结构结合部的承载力符合设计要求；结合部的破坏形式表现为承压板下方钢壁板达到屈服并发生鼓曲变形；承压板为结合部的核心传力构件，增大板厚可以提高结合部承载力以及承压板所传递的荷载，其厚度宜与外壁钢板厚度相近 ...
高晓沛, 张伟, 康福军, 朱尧于, 刘玉擎   +4 more
doaj  

基于PSO-AFSA的特高压猫头塔等电位进入路径优化

Gaoya dianqi
带电作业作为确保特高压线路运行可靠性的重要技术方法，选择安全高效的等电位带电作业进入路径至关重要。鉴于当前等电位进入路径优化评估标准单一、没有考虑电场分布和放电特性的问题，本文提出了一种基于分段评估函数的混合粒子群—人工鱼群优化算法(PSO-AFSA)路径优化模型。首先，建立了1000kV猫头塔输电线路的有限元仿真模型，并通过与现场试验数据对比验证了模型的准确性；随后依据常规路径场强分布规律并结合组合空气间隙放电规律，以E40%作为畸变电场划分点，构建了基于电场畸变、路径与场强的分段评估函数；最后 ...
吴田, 唐生燚, 邱中华, 彭勇, 黎鹏, 普子恒, 方春华   +6 more
doaj  

[Determination of caffeine and taurine in electronic cigarette oil by high performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Sun X, Chang QZ, Wang C, Shao WH, Feng F.   +4 more
europepmc   +1 more source

[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]

Se Pu
Li YJ.
europepmc   +1 more source

[Magnetic one-step purification-high performance liquid chromatography-triple quadrupole/composite linear ion trap mass spectrometry for the determination of 54 veterinary drug residues in carp]. [PDF]

Se Pu
Wen YP, Huo WD, Zhang CY, Liu H, Mu YC, Wu LD, Li JC.   +6 more
europepmc   +1 more source

[Determination of 17 bisphenol compounds in human urine by solid supported liquid-liquid extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Jin Y, Zhang LG, Zhou JX, Ma JJ, Yuan LL, Xiao P, Wang GQ.   +6 more
europepmc   +1 more source

[Deep overparameterized blood cell detection algorithm utilizing hybrid attention mechanisms]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhu S, Zhang X, Wang Z, Jiang R, Liu Z.
europepmc   +1 more source

[Simultaneous determination of six rare sugars in solid foods by high performance liquid chromatography-evaporative light-scattering detection]. [PDF]

Se Pu, 2023
Liu Y, Xing JL, Shen J, Bi XL, Mao LY, Xu XR, Zhang SF, Lou YJ, Wu X, Mu YH.   +9 more
europepmc   +1 more source

[Determination of tetracyclines in animal muscle tissues by ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chu K, Li JH, Wang QQ, Li XT, Wu S, Chen C.   +5 more
europepmc   +1 more source

[Determination of 51 per- and polyfluoroalkyl substances in raw water and drinking water by online solid-phase extraction coupled with ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chen YY, Lyu J, Ye BX, Zhang L, Wang YY, Jin N.   +5 more
europepmc   +1 more source