Application of DDST in assessing development of infants 应用丹佛发育筛查法评价婴幼儿发育状况
The improved DDST intelligence examination was done on 67 cases of endemic cretinism in Qinghai through random sampling and had got developmental quotient ( DQ). 通过随机抽样对青海省67例地克病患者做改进后的DDST智能检查,取得发育商。
Both groups were given NBNA examination before and after treatment ( mean interval was 12 days), also given DDST examination for follow-up. 两组治疗前后行NBNA检查(平均间隔12d),并用丹佛发育筛查法进行随访。
The use of DDST in china: Retrospect and Prospect 丹佛智能发育筛选检查(DDST)在国内的应用:回顾与瞻望
DDST results and analysis of 397 children in IDD area 397名碘缺乏病区儿童DDST测试结果分析
Methods The extended spectrum β-lactamase-producing Klebsiella pneumoniae ( ESBL-KP) spp. were screened out by the double disc synergy test ( DDST); 方法以双纸片协同试验(DDST)筛选出产超广谱β内酰胺酶肺炎克雷伯菌(ESBLKP);
Methods Bacterium identification and antimicrobial susceptibility were tested by WalkAway-40 full automated microbial analytic instrument and the producing of metallo-β-lactamases ( MBLs) was detected by double-disk synergy test ( DDST). 方法细菌鉴定、药敏实验采用WalkAway-40全自动微生物分析仪,金属β-内酰胺酶检测采用双纸片增效法。
And the performance of TDM, ST and DDST is compared by training sequence selection, channel estimation MSE, data detection BER and system throughput. 论文从训练序列选择,信道估计性能,信道容量以及信号检测误码率和系统吞吐率等方面比较了TDM,ST和DDST的性能。
To remove the error floor, a data coding method is also proposed and the redundant ratio of the coding algorithm is given. 为消除DDST信号检测的错误平层,论文又提出一种信号编码算法并给出了该算法数据冗余率的表达式。
Analysis and simulation results show that the optimal power of DDST training sequences is independent of SNR and whether the DDS removal algorithm is employed. Finally, the channel capacity lower bounds of ST and DDST schemes are derived when optimal training power is employed. 研究结果表明,DDST训练序列的最优功率与信噪比无关,与是否采用DDS消除算法无关与信道增益也无关。论文最后给出了ST和DDST系统训练序列功率最优时,信道容量下界的表达式。