Results 121 to 130 of about 9,904 (178)

[Risk factors for overall postoperative complications in elderly patients undergoing gastrointestinal surgeries: a multicenter observational study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Lü X, Liu Y, Han S, Zhang H, Hou A, Zhou Z, Shi L, Gao J, Cao J, Zhang H, Mi W.   +10 more
europepmc   +1 more source

Biomechanical analysis of three kinds of rigid internal fixation methods for condylar head fractures. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sun J, Lan D, Wang D, Xu Y, Wang Z, Zhang C, Zhang K, Xu T.   +7 more
europepmc   +1 more source

[Comparative study of posterior axillary edge approach and arthroscopic assisted reduction in treatment of Ideberg type <b>Ⅰ</b> and <b>Ⅱ</b>glenoid fracture of the scapula]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li B, Yuan Y, Xu P, Yuan Y, Wang Y, Zhang X, He Z.   +6 more
europepmc   +1 more source

[Research on intelligent fetal heart monitoring model based on deep active learning]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Quan B, Huang Y, Li Y, Chen Q, Zhang H, Li L, Liu G, Wei H.   +7 more
europepmc   +1 more source

[Deep learning algorithms for intelligent construction of a three-dimensional maxillofacial symmetry reference plane]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zhu Y, Shen H, Wen A, Gao Z, Qin Q, Shan S, Li W, Fu X, Zhao Y, Wang Y.   +9 more
europepmc   +1 more source

[Meta analysis of the prevalence and risk factors of non-alcoholic fatty liver disease in overweight and obese children and adolescents in China]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Xiao Y, Pan YF, Dai Y, Sun YJ, Zhou Y, Yu YF.   +5 more
europepmc   +1 more source

[Materialistic values and their association with depression in medical postgraduates: materialism leads to higher risk of depression]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Lv X, Xiao R.
europepmc   +1 more source

[Surgical Perspective on Lung Cancer in 2024: Innovation and Challenges]. [PDF]

Zhongguo Fei Ai Za Zhi
Kong P, Chen X, Lv W, Xia P, Wang L, Hu J.   +5 more
europepmc   +1 more source

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半均衡定价: CAPM 公式和 SDF 定价 (Semi-Equilibrium Pricing: CAPM Formula and SDF Pricing)

, 2020
Chinese abstract: 半均衡定价通过投资者的最优证券组合直接寻求基本证券价格，对比均衡定价，半均衡定价缺少了市场出清条件求解均衡价格的步骤。将 CAPM 公式当成均衡定价是错误的，因为 CAPM 公式只是最优证券组合与市场组合为同一组合的等价表述，其中市场组合的总价值是自由变量，故 CAPM 公式成立时不能确保市场出清，CAPM 公式是半均衡定价。此外，我们求解出 SDF 模仿支付的显式解，并通过它证明了 CAPM 市场中模仿支付与市场贝塔的等价性，佐证了 SDF 定价也是半均衡定价。
Deng-Ta Chen
semanticscholar   +1 more source

等价掺杂转换理论预示扩散-外延穿通P-N结的击穿电压和击穿峰值电场强度

, 2001
基于等价掺杂转换理论的应用，得到了解析计算扩散－外延穿通P－N给击穿电压和击穿峰值电场强度的一系列结果。介绍了等价掺杂转换方法的基本理论，然后运用该理论得到了用于低压功率器件优化设计的系列 穿电压和击穿峰值电场强度计算公式，并正确地预示了最大击穿电压和击穿峰值电场强度的位置。理论结果显示出与以前的数值 分析结果良好的一致性。
何进, 张兴, 黄如, 王阳元
semanticscholar   +1 more source