Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequ...Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequency variation rule before and after voice change of multiple corpuses by analyzing map and data. The results show that the fundamental frequency before and after voice change exists a linearity relationship, we can realize speaker identification in electroacoustic disguised speech field through comparing Chinese pitch pattern.展开更多
The structural organization of initially random errors evolving in abarotropic tangent linear model, with time-dependent basic states taken from analyses, is examinedfor cases of block development, maturation and deca...The structural organization of initially random errors evolving in abarotropic tangent linear model, with time-dependent basic states taken from analyses, is examinedfor cases of block development, maturation and decay in the Southern Hemisphere atmosphere duringApril, November, and December 1989. The statistics of 100 evolved errors are studied for six-dayperiods and compared with the growth and structures of fast growing normal modes and finite-timenormal modes (FTNMs). The amplification factors of most initially random errors are slightly lessthan those of the fastest growing FTNM for the same time interval. During their evolution, thestandard deviations of the error fields become concentrated in the regions of rapid dynamicaldevelopment, particularly associated with developing and decaying blocks. We have calculatedprobability distributions and the mean and standard deviations of pattern correlations between eachof the 100 evolved error fields and the five fastest growing FTNMs for the same time interval. Themean of the largest pattern correlation, taken over the five fastest growing FTNMs, increases withincreasing time interval to a value close to 0.6 or larger after six days. FTNM 1 generally, but notalways, gives the largest mean pattern correlation with error fields. Corresponding patterncorrelations with the fast growing normal modes of the instantaneous basic state flow aresignificant' but lower than with FTNMs. Mean pattern correlations with fast growing FTNMs increasefurther when the time interval is increased beyond six days.展开更多
基于3~6岁学龄前132个男童的测量数据,分析得出三类体型,确定研究对象为最普遍的第2类正常体型;以第2类正常体男童的基本裤型为例,利用CLO3D进行虚拟仿真试验,结合髋关节、膝关节活动范围确定五种动态模拟,进行不同动态下基本裤型的虚...基于3~6岁学龄前132个男童的测量数据,分析得出三类体型,确定研究对象为最普遍的第2类正常体型;以第2类正常体男童的基本裤型为例,利用CLO3D进行虚拟仿真试验,结合髋关节、膝关节活动范围确定五种动态模拟,进行不同动态下基本裤型的虚拟压力和虚拟应力探究。结果显示:髋、膝关节角度较大时,后臀部位的B2点以及膝盖部位的F5点等虚拟压力和应力也较大;由于面料拉伸,大腿外侧的S2、S3点有较大的应力以及较小的压力,而膝盖以下几乎没有服装虚拟压力和应力。在此基础上进行版型优化,优化效果最好的是B2点,其平均虚拟压力和应力分别下降了5.59 k Pa和8.73%;使用汗布、毛圈布、珠地布三种针织面料进行模拟试穿,以及真人试穿测试,进一步验证了版型优化的有效性。展开更多
文摘Camouflage voice is the common check material form in judicial voice testing field that brings about many difficulties to speaker identification. Aiming at the electroacoustic disguised voice, we get fundamental frequency variation rule before and after voice change of multiple corpuses by analyzing map and data. The results show that the fundamental frequency before and after voice change exists a linearity relationship, we can realize speaker identification in electroacoustic disguised speech field through comparing Chinese pitch pattern.
文摘The structural organization of initially random errors evolving in abarotropic tangent linear model, with time-dependent basic states taken from analyses, is examinedfor cases of block development, maturation and decay in the Southern Hemisphere atmosphere duringApril, November, and December 1989. The statistics of 100 evolved errors are studied for six-dayperiods and compared with the growth and structures of fast growing normal modes and finite-timenormal modes (FTNMs). The amplification factors of most initially random errors are slightly lessthan those of the fastest growing FTNM for the same time interval. During their evolution, thestandard deviations of the error fields become concentrated in the regions of rapid dynamicaldevelopment, particularly associated with developing and decaying blocks. We have calculatedprobability distributions and the mean and standard deviations of pattern correlations between eachof the 100 evolved error fields and the five fastest growing FTNMs for the same time interval. Themean of the largest pattern correlation, taken over the five fastest growing FTNMs, increases withincreasing time interval to a value close to 0.6 or larger after six days. FTNM 1 generally, but notalways, gives the largest mean pattern correlation with error fields. Corresponding patterncorrelations with the fast growing normal modes of the instantaneous basic state flow aresignificant' but lower than with FTNMs. Mean pattern correlations with fast growing FTNMs increasefurther when the time interval is increased beyond six days.
文摘基于3~6岁学龄前132个男童的测量数据,分析得出三类体型,确定研究对象为最普遍的第2类正常体型;以第2类正常体男童的基本裤型为例,利用CLO3D进行虚拟仿真试验,结合髋关节、膝关节活动范围确定五种动态模拟,进行不同动态下基本裤型的虚拟压力和虚拟应力探究。结果显示:髋、膝关节角度较大时,后臀部位的B2点以及膝盖部位的F5点等虚拟压力和应力也较大;由于面料拉伸,大腿外侧的S2、S3点有较大的应力以及较小的压力,而膝盖以下几乎没有服装虚拟压力和应力。在此基础上进行版型优化,优化效果最好的是B2点,其平均虚拟压力和应力分别下降了5.59 k Pa和8.73%;使用汗布、毛圈布、珠地布三种针织面料进行模拟试穿,以及真人试穿测试,进一步验证了版型优化的有效性。
