Non positive

An iterative solution method is suggested to solve the system of equations whose coefficient matrices are non positive definite .

由于系统方程的系数矩阵非正定，系统方程不能用直接法和传统的迭代法求解，为此提出了一种求解该方程组的迭代解法。

Kernel functions in SVMs sometimes ; need to satisfy Mercer conditions , but some non positive semi-definite ( non PSD ) kernels , such as Sigmoid kernel , also apply to classification problems .

支持向量机的核函数往往需满足Mercer条件，但一些并不完全满足Mercer条件的核，比如Sigmoid核，也常常用于分类问题。

Cases accepted non invasive positive pressure ventilation .

应用无创正压通气（NIPPV）的5例；

Analysis of Non - positive PERT Network

非肯定型PERT网络分析

Objective : To observe the application and the roles of non invasive positive pressure ventilation ( NIPPV ) in the treatment of severe acute respiratory syndrome ( SARS ) .

目的：观察无创正压通气（NIPPV）在严重急性呼吸道综合征（severeacuterespiratorysyndrome，SARS，即非典型肺炎）治疗中的应用及其作用。

In the positive results , non of the positive cases showed cross agglutination phenomena , complete identified with clinical diagnosis .

阳性结果中未发现交叉反应，亦符合临床诊断。

It achieved the expression of fundamental positive sequence voltage and fundamental positive sequence current by using a few calculation of pending test signals multiplies with a cosine function and a sine function . The compensation of the non - fundamental positive sequence ingredients is established on this method .

该方法利用待检测信号与正弦和余弦参考信号的少量乘除法运算，快速获得待检测信号中的基波电压和基波电流表达式，为高效补偿待检测信号中的非基波分量奠定了基础。

Objective : Through the examination of immunohistochemical features of gastrointestinal stromal tumors ( GISTs ), to further discuss the cellular origin and differentiation , investigate the best immunohistochemical diagnosis combination markers of GISTs , seek the probable diagnosis marker in non - CD117 positive expression GISTs .

目的：通过观察68例胃肠间质瘤（GISTs）的免疫组化标记特点，进一步探讨GISTs的组织发生及分化问题；寻找GISTs的免疫组化诊断的最佳组合标记物；

Results In non tumor hepatocytes , positive expression of E cadherin was found , but CD54 and CD44 staining were negative .

结果非癌组肝细胞均见Ecadherin阳性表达，CD54，CD44均呈阴性染色。

Results The B19 DNA in 27 cases of immunological infertility and 11 cases of non immunological infertility was positive , the positive rates were 26.3 % and 13.7 % respectively .

结果102例免疫性不育患者精液中B19DNA阳性27例，阳性率为26.3%；

The results suggested that the expression of EBV was closely correlated to the histological type of NPC : keratinizing NPC was negative , while non keratinizing NPC was positive .

提示EB病毒原位杂交表达与NPC的组织学类型关系密切，角化型为阴性表达，非角化型为阳性表达。

[ Methods ] 60 cases of elderly patient , average age 71 years old , pass the colonoscopy check . The non - lifting sign positive to select to cure the indications for the EMR , 46 lesion < 2 cm implement to cut off ;

方法60例老年患者，年龄平均71岁，通过结肠镜检查，非抬举征（non-liftingsign）阳性入选为EMR适应证，46例病变<2cm行一次性切除；