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- 北京大学中文核心期刊目录(北大核心)(31)
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- 四川大学学报(自然科学版)(31)
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- Extraction of symmetry energy coefficient in heavy-ion reactions near the Fermi energies北大核心摘要:An improved method is proposed for the extraction of the symmetry energy coefficient relative to the temperature,a_(sym)/T,in the heavy-ion reactions near the Fermi energy region,based on the modified Fisher Model.This …查看全部>>
- Dual encoding feature filtering generalized attention UNET for retinal vessel segmentation北大核心Vessel segmentationData balancingData augmentationDual encoderAttention MechanismModel generalization摘要:Retinal blood vessel segmentation is crucial for diagnosing ocular and cardiovascular diseases.Although the introduction of U-Net in 2015 by Olaf Ronneberger significantly advanced this field,yet issues like limited …查看全部>>
- The well-posedness of incompressible impinging jet flow in an axisymmetric finitely long nozzle北大核心Existence and uniquenessImpinging jet flowIncompressible flowFree boundaryAxisym-metric finitely long nozzle摘要:This paper mainly studies the well-posedness of steady incompressible impinging jet flow problem through a 3D axisymmetric finitely long nozzle.This problem originates from the physical phenomena encountered in practica…查看全部>>
- Moment analysis of bio-inspired stochastic energy harvesters under wind conditions北大核心摘要:To further understand the performance of the energy harvesters under the influence of the wind force and the random excitation,this paper investigates the stochastic response of the bio-inspired energy harvesters subjec…查看全部>>
- 用于高速软X射线相机的Y_(2)SiO_(5):Ce荧光粉涂层测试北大核心摘要:高速软X射线成像诊断系统(HSXR),又叫高速软X射线相机,具有成像速度快且耐辐射的优点,在托卡马克诊断装置中占有一席之地,但其尚不具备粒子鉴别能力、成像反演精度有待提高、标定难.为此,我们搭建了一套测试装置对其目前使用的核心部件P47荧光屏(Y_(2)SiO_(5):Ce)进行了测量,以找到余辉处理办法和标定方案,提高其能量分辨率和探测效率.以放射源为入射源,考虑空气衰减和面源立体角修正得到入射粒子强度,再除以净计数率得到探测效率.…查看全部>>
- 距离分布函数构成的完备格Δ^(+)上的三角模北大核心
- TB-COP对I_(2)和硝基苯酚的吸附性能及机理研究北大核心
- 《四川大学学报(自然科学版)》编辑委员会北大核心
- 稀疏复杂网络邻接拓扑的l_(1)–正则化辨识方法北大核心
- “学者-高校”匹配的双向就业推荐系统研究北大核心