Results 111 to 120 of about 3,931 (161)

[Clinical characteristics and prognosis of primary immune thrombocytopenia complicated with diffuse alveolar hemorrhage]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
An ZY, Fu HX, Zhao P, Zhu XL, He Y, Wu J, Wang CC, Yang LP, Zhang XH.   +8 more
europepmc   +1 more source

C₄F₇N/CO₂混合气体湿度检测技术研究

Gaoya dianqi
电气设备中C4F7N/CO2混合绝缘气体的湿度水平影响气体的绝缘性能，定期检测湿度是日常运维工作之一。文中研究采用变电站日常运维中常规的冷镜式露点仪和阻容式湿度计对不同湿度的C4F7N/CO2混合绝缘气体进行检测，实验表明上述常规湿度检测仪器均不能直接应用于C4F7N/CO2混合气体的湿度检测。文中将上述冷镜式露点仪进行技术改造后，采用标准湿度的C4F7N/CO2混合气体对其进行准确度实验，结果表明，改造后的冷镜式露点仪的露点测量误差不超过±0.2 ℃，且在C4F7N比例不超过12 ...
谢成, 邵先军, 张伟, 王鑫, 丁五行, 何毅帆   +5 more
doaj  

13X分子筛对C₄F₇N混合气体碳氟分解产物吸附性能研究

Gaoya dianqi
环保绝缘气体C4F7N具有优异的绝缘性能，与缓冲气体CO2混合后具有在气体绝缘设备中运用的潜力。选择合适吸附材料对C4F7N混合气体分解产物吸附处理，可保证环保绝缘气体设备的安全稳定运行。文中通过气体吸附实验探究了13X分子筛对C4F7N混合气体主要4种碳氟分解产物的吸附性能，并分析其对主要气体C4F7N和CO2体积分数的影响。通过观测吸附实验后各碳氟分解产物体积分数变化，进而对13X分子筛关于开断实验后的混合气体吸附性能进行评估。实验结果表明13X分子筛对C3F6和C3F8有较强吸附性能 ...
杨景刚, 丁然, 赵科, 高山, 肖焓艳, 卞超, 田双双, 王毅   +7 more
doaj  

[Determination of vitamin A and vitamin E in human tear by liquid chromatography-tandem mass spectrometry and analysis of their relationship with dry eye]. [PDF]

Se Pu
Luo BB, Jiao JR, Bai J, Liu XY.
europepmc   +1 more source

[Epidemiological characteristics of human metapneumovirus and risk factors for severe pneumonia in hospitalized children]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Wang YX, Lu SK, Huang KL, Cao LJ, Chu YJ, Niu B.   +5 more
europepmc   +1 more source

[<i>Shengmai San</i> improves osimertinib resistance of non-small cell lung cancer cells by regulating the lactate/Wnt/β-catenin/LDHA pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Liang Z, Pan F, Deng L, Mai Z, Ma Y, Shi C, Fu W.   +6 more
europepmc   +1 more source

[Interpretation of the "Expert consensus on the management of neonatal parenteral nutrition (2025)"]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Lin XZ, Zhang R, Chang YM, Li ZH, Liu XH, Bei F, Shen W, Tong XM, Chen C.   +8 more
europepmc   +1 more source

C₄F₇N/CO₂混合气体自由燃弧特性仿真研究

Gaoya dianqi
目前电力行业中采用C4F7N/CO2混合气体作为绝缘介质替代SF6的可推广性较高，但对其灭弧性能的研究仍有待深入。文中基于磁流体动力学（MHD）理论模拟了棒—棒电极间隙的自由燃弧动态过程，计算了0.6 MPa的C4F7N/CO2混合气体（C4F7N占比分别为7%、10%、20%）和SF6的电弧伏安特性。研究结果表明：C4F7N/CO2混合气体在轴向的扩散能力强于SF6气体；与C4F7N/CO2混合气体相比，SF6气体的燃弧温度更低，增大C4F7N的比例可降低燃弧温度；在燃弧过程中SF6气体的电弧电压最低，
李爽, 理乐, 陈圣, 毕海涛, 林莘, 庚振新   +5 more
doaj  

[Whole genome sequencing and analysis of familial nonsyndromic congenital tooth agenesis]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zheng Y, Wang D, Jiang T, Yang D, Lu H.
europepmc   +1 more source

[Performance validation and consistency assessment of three liquid chromatography-tandem mass spectrometry methods for detecting fat-soluble vitamins]. [PDF]

Se Pu
Li BC, Li BH, Chen ZY, Li ZY, Yin ML, Lyu X, Xiang ZY, Long QC, Hu M.   +8 more
europepmc   +1 more source