中值
- 与 中值 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In modern specification of handset, there is one about SAR. However, current mobile phone antenna is dipole antenna with omni-directional radiation pattern in azimuth plane. So much better performance of antenna means higher SAR value. Therefore, in order to improve SAR performance, designer may be forced to detune antenna or use resistor. The two methods will reduce efficiency of antenna.
在移动电话的技术规范中往往有SAR值的要求,这给手机天线的设计带来了严峻的挑战,因为现代的手机天线基本上是在水平面具有全向辐射特点的偶极子天线,因此天线的性能越好往往SAR值越高,所以有时为了降低SAR值甚至故意劣化天线的性能。
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Compared with the conventional analytic methods, the author studies the feasibility that the elastic bearing model is used to simulate the boundary constraint condition of the enrockment.
引入弹性边界模型,对比传统分析中对边界约束的处理,研究用弹性边界来模拟堆石体边界约束条件的可行性;选用规则典型的坝体,研究面板堆石坝的面板及堆石体的应力应变规律,特别是周边缝的变形规律;分别讨论了岸坡坡比、坝前水深、坝高、河床底宽等几何参数对弹簧系数取值的影响,确定弹簧系数的取值范围,给出了可用于实际工程计算的最佳取值范围;以松山面板堆石坝作为工程实例,验证弹性边界模型的实用性,并为工程建设提供了一定的参考。
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For a room with different functions, the standard values, which represent the floor live loads of the room with the specified functions, are calculated in accordance with 79.1%-fractile and 97.4% fractile, respectively.
针对不同使用功能的房间,分别按照79.1%分位值和97.4%分位值计算出代表各类型房间的楼面活荷载标准值,并与荷载规范中住宅楼面活荷载标准值的单一取值相比。
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Results: Within-run CV 、day-to-day CV and total CV were 1.33%、1.42% and 2.01% respectively by iterant test; average recovery rate was 96.6%; anticoag-ulant、septic、uric acid and bilirubin under a certain concentration also did not interfere with the glucose re-sult in this method. Compared with HK method, the pertinence was Y =1.038X-1.172,r =0.994. The linearity studies showed the method was linear up to 20mmol/L.
结果: 重复性试验批内 CV 值为1.33%,批间CV 值为1.42%,总 CV 值为2.01%;回收试验中回收样品I、Ⅱ、Ⅲ的回收率分别为105%,93.5%和91.4%,平均为96.6%;干扰试验表明一般浓度的抗凝剂、防腐剂、尿酸、胆红素对葡萄糖的测定不产生干扰;比较试验,与HK法比较其相关性为Y =1.038X-1.172,r =0.994;线性范围试验表明葡萄糖浓度在20 mmol/L以下呈现良好的线性。
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Results: Within-run CV 、day-to-day CV and total CV were 1.33%、1.42% and 2.01% respectively by iterant test; average recovery rate was 96.6%; anticoag-ulant、septic、uric acid and bilirubin under a certain concentration also did not interfere with the glucose re-sult in this method.
结果: 重复性试验批内 CV 值为1.33%,批间CV 值为1.42%,总 CV 值为2.01%;回收试验中回收样品I、Ⅱ、Ⅲ的回收率分别为105%,93.5%和91.4%,平均为96.6%;干扰试验表明一般浓度的抗凝剂、防腐剂、尿酸、胆红素对葡萄糖的测定不产生干扰;比较试验,与HK法比较其相关性为Y =1.038X-1.172,r =0.994;线性范围试验表明葡萄糖浓度在20 mmol/L以下呈现良好的线性。
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The larger the niche overlap of two species is, the more similarly resource space they occupy. the niche overlap of Leontopodium leontopodioides and Polygonum viviparum amounts to 0.892 (in the community Ⅰ). This proves that they are very similar in utilizing the resources. In the general community, the niche overlaps among species are very low.
两个种群的生态位重叠值越大,说明它们占据越相似的资源空间,珠芽蓼和火绒草的生态位重叠值高达0.892,说明它们利用资源的相似性程度很高;在总群落中,各种群之间生态位重叠值都很低。
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Results All 34 cases included 29 carotid atherosclerosis,10 mlid luminal stenosis, 12 moderate luminal stenosis, 5 severe luminal stenosis,2 segmental occlusion;15 calcified plaque,10 noncalcified plaque,9 mixed plaque ;The total CT value ranged from 20-1140Hu,and the CT value of calcified plaque ranged from 220-1140Hu,the CT value of noncalcified plaque ranged from 20-73Hu; hese 7 positive findings included 1 left common carotid artery abnomal origin,2 carotid artery aneurysm and 4 vertebral artery stenosis.
结果 34例患者中,颈动脉粥样硬化者29例,管腔轻度狭窄者10例,中度狭窄者12例,重度狭窄者5例,节段闭塞者2例;钙化斑块15例,非钙化斑块10例,混合斑块9例; CT值范围20-1140Hu,其中钙化斑块CT值220-1140Hu,非钙化斑块CT值20-73Hu;左侧颈总动脉起源异常者1例;颈动脉体瘤2例;椎动脉狭窄者4例。
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The cyclic variation of integrated backscatter and echo intensity of three different myocardial regions perfused by left anterior descending coronary artery, left circumflex coronary artery and right coronary artery (on the frozen frame of parasternal short-axis image,those position were approximately at the 12, 4 and 8 o'clock direction to the center of the left ventricle, respectively) were measured with HP-5500 ultrasonic system and DFY ultrasonographic quantitative analysis system.
在35例急性心肌梗死患者发病2周内,用HP-5500型超声诊断仪和DFY型超声图像定量分析诊断仪,在胸骨旁左室乳头肌短轴切面,分别测量冠状动脉左前降支、左回旋支和右冠状动脉支配区域心肌组织(分别相当于左室乳头肌短轴切面上12、4、8点的位置)的IB和EI心动周期变化幅度值,以CVIB和CVEI值≤同一切面三个不同部位中最高值的1/2作为诊断心肌梗死的标准,部分病例与冠脉造影结果对比。
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Secondly, a improvement of image denoising algorithm based Ridgelet tra...
其次,针对图像去噪中常用阈值方法的缺点和不足,提出了一种基于脊波变换的改进的图像去噪算法,该算法采用指数型阈值函数,利用SureShrink自适应阈值。
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The result shows that for both PCL homopolymers and PCL-b-PEG block copolymers, the spherulitic linear growth rate first increases with molecular weight and reaches a maximum, then decreases as molecular weight increases. Crystallization temperature has greater influence on the spherulitic growth rate of polymers with higher molecular weight.
当自由PEG在水中的占有面积S_o与单根PEG链段所占有的表面积S的比值S_o/S的值接近或小于3时,PEG链段对胶束形状的影响较小,PCL嵌段的影响占主导地位,易形成片状胶束;当S_o/S的值在3-10之间时,随着PCL嵌段分子量的增加,PCL-b-PEG嵌段共聚物在水溶液中自组装形成类似球状、棒状和蠕虫状胶束,是PEG与PCL嵌段共同的作用的结果;当S_o/S的值大于10时,易形成球状胶束。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。