在模型验证与应用方面,机器学习辅助紫外吸收光谱法通过在供体 A 的 MSC 培养中加入 10 CFU 的大肠杆菌,在9 小时到 24 小时之间,每隔 3 小时提取 3 次上清液样本,以展示该方法对低浓度污染物的检测能力。结果如下图所示,SVM 模型能够在 21 小时后准确预测样本受污染,总检测时间约为 21.5 小时。 大肠杆菌加标...
对 418 个测试样本的分析显示,模型真正阳性率达 92.7%,检测限稳定维持在 10 CFU;但 77.7% 的真阴性率表明仍存在改进空间,其中供体 F 样本因 NA 水平异常导致的假阳性问题尤为突出,为后续优化模型对供体间代谢差异的适应性指明了方向。 机器学习辅助紫外吸收光谱法:以支持向量机为核心算法 为了让机器学习更好地...
oxide (GO) in GO@Cu2O-Apt has a large surface area and good conductivity, on the surface of which a large amount of Cu2O that can switch the polarity of the Bi2S3 photocurrent was loaded, resulting in a highly selective and sensitive detection of VP with a detection limit of 1.0 CFU/...
在50000 CFU/mL临界值下,其准确度进一步提升到98.5%。在预测革兰氏染色反应方面,该模型在两个临界水平上的预测精度令人满意。由于分析时间仅为30分钟,我们的方法有望作为一种新的筛选工具,在尿液培养前预测细菌的存在。 重点 本研究...
aureus reduction in chicken and beef of 8.41 and 8.20 log10 CFU/ml, respectively, which were found when PAW was combined with UV and US for 20 min of treatment. This study arrives to the conclusion that combining PAW with appropriate supplementary technologies increased efficiency and enhance ...
S4c‒e). After knocking down UHRF1, we found the increased BAX and decreased PARP in these cells (Supplementary information, Fig. S4f), and the expansion of AML cells were reduced in CFU assay (Supplementary information, Fig. S4g, h). The flow cytometry results indicated that AML cells...
E. ≦30cfu/件 查看完整题目与答案 目前各国货币发行准备得构成一般有( ) A. 现金准备 B. 证券准备 C. 黄金准备 D. 票据准备 E. 外汇准备 查看完整题目与答案 相关题目: 目前我国高血压流行情况是() A. 患病率呈明显增长态势;知晓率、治疗率、控制率均较低 B. 患病率呈明显增...
B. ≦10cfu/件 C. ≦15cfu/件 D. ≦20cfu/件 E. ≦30cfu/件 查看完整题目与答案 目前各国货币发行准备得构成一般有( ) A. 现金准备 B. 证券准备 C. 黄金准备 D. 票据准备 E. 外汇准备 查看完整题目与答案 水轮机为__式布置. A. 卧 B. 立 C. 斜 查看完整题...
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