查询词典 prematurity

Optimal algorithm of combined nonlinear Hopfield network appears powerful validity in solving nonlinear planning, which includes nonlinear objective function, linear constrains and high-demension of decision-making variants, for its ability of nonlinear parallel computation. It is prominent among optimal algorithms because of its function of simply implement with electrocircuit hardware. Genetic algorithm is expressly suitable for optimal calculation regarding the planning of massive, highly nonlinear, inconsecutively differentiable and multiobjective function as well as objective function without analytical expression. However, it inclines to prematurity, as well as its limitation in ability of partial optimal search. Introducing the optimal algorithm of niche genetic simulated annealing to standard Genetic algorithm, can therefore improve the full-scale or partial search ability of Genetic algorithm effectively. It has a far-flung perspective in the field of systemic planning of water pollution control.

组合式非线性Hopfield网络优化算法所具有的非线性大规模并行计算能力在求解具有非线性目标函数、线性约束条件及高维决策变量的非线性规划问题方面显示出了强大的生命力，它易于电路硬件实现的功能更是在优化算法中独树一帜；遗传算法采用概率搜索技术，不受目标函数与约束条件的限制，特别适合大规模、高度非线性的不连续可微的多峰目标函数及无解析表达式的目标函数的规划问题的优化计算，但其存在容易早熟、局部寻优能力较差等缺点，本文在标准遗传算法中引入小生境技术及模拟退火算法有效地改善遗传算法的全局和局部搜索性能，提高了全局最优解的寻优质量，小生境遗传退火模拟优化算法在水污染控制系统规划中的应用前景极为广阔。

Most cases with pneumomediastinum are associated with prematurity, pneumonia, meconium aspiration syndrome, difficult delivery or mechanical ventilation.

大多数的案例都与早产、肺炎、胎便吸入症候群、难产或机械性换气有关。

PURPOSE: To compare the speed of retinopathy of prematurity diagnosis using standard indirect ophthalmoscopy with that of telemedicine.

目的：比较速度，早产儿视网膜病变的诊断标准采用间接眼底镜与远程医疗。

Objective To observe the characteristics of images of ocular fundus obtained by computer-assisted imaging system of binocular indirect ophthalmoscopy in the healthy premature infants and the ones with retinopathy of prematurity, and evaluate the value of the clinical practice of CABIO in ROP screening.

目的观察计算机辅助的双目间接检眼镜成像系统检查所见的早产儿正常眼底以及早产儿视网膜病变图像特征，探讨计算机辅助的双目间接检眼镜成像系统在ROP筛查中的临床应用价值。

The incidence of asphyxia was also related with gender, polyembryony, birth weight, prematurity babies and aids to delivery from voginal. Conclusions The incidence of perinatal asphyxia is related with the gender, polyembryony, birth weight and gestation age as well as seasons. New resuscitation technique can reduce the morbidity of mild birth asphyxia, and no effect on the severe asphyxia as well as fatality rate.

围生期窒息的发生与性别、双／多胎、出生体质量、胎龄密切相关；新法复苏能显著降低轻度窒息的发生率，对重度窒息的发生率和窒息病死率无明显影响；窒息儿的死亡率和病死率与季节有关。

It complicates 5 to 8 percent of pregnancies and is associated with iatrogenic prematurity.

它使5－8％的妊娠复杂化并引起医源性的早产。

Objective To analyze the incidence and severity of retinopathy of prematurity.

目的 分析早产儿视网膜病变的发病情况。

OBJECTIVE: Retinopathy of prematurity is one of important causes of childhood visual impairment and blindness.

目的：早产儿视网膜病是儿童视觉损害及致盲的重要原因之一。

It complicates 5 to 8 percent of pregnancies and is associated withiatrogenic prematurity.

它使5－8％的妊娠复杂化并引起医源性的早产。

A major reason is prematurity -- the death rates are among the highest in the world.

一个主要的原因是早产－死亡率在世界居于最高水平。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。