查询词典 Ds

A structure of space-time diversity virtual double-route weighting interference mitigating is proposed, and the corresponding practical algorithm is derived in detail using block matrix inversion formula and matrix inversion theory for mitigating interference signals from both other cells and other users of local cell in the DS-CDMA up-link communication case. Performances of such algorithm are thoroughly analyzed through simulation and analytical results. The up-link and down-link channel characters and their relationship of DS-CDMA communication system are thoroughly analyzed, and the relationship of space-time diversity weighting matrix between time division duplexing and frequency division duplexing these two different transmission ways is derived.

本论文深入地比较了DS-CDMA通信系统的上传情形与下传情形的信道特性及其它们相互之间的关系；深入地分析并得到了时分双工和频分双工两种不同的传输模式下的上传情形与下传情形的空时分集权系数矩阵之间的数量关系，从而使得能够利用在基站端所拥有的上传情形的空时分集接收权系数矩阵信息以及其他信息在基站端直接形成空时分集发射权系数矩阵；推导了下传情形移动用户接收机端的最优组合接收策略及其算法；进一步地，对时分双工传输模式下的下传情形的通信系统性能和频分双工传输模式下的下传情形的通信系统性能进行了深入的比较仿真研究。

Trisomic triallelic pattem is a"Gold standard"for diagnosis of DS and trisomic diallelic pattern with a ratio of 2: l also is a powerful indicator for DS.

故在21号染色体上DS关键区内选择10个STR位点（D21S11、D21S1432、D21S1413、D21S1414、D21S1446、D21S1437、D21S2039、D21S1270、D21S1411、D21S1412），根据STR基因型的表现，可进行DS的基因诊断。

The language development lags behind the deveolpment of cognition in children with DS; II. The acceptive and productive language also lag behind the development of cognition; III. The auditory short-term memory deficit does exist in children with DS while the visual short-term memory is relatively a strength; IV.

在匹配两组儿章非语言智龄(以知觉—操作分量表的得分标示)的基础上，比较了两组儿童被试在语言障碍评量表、听力短时记忆测试、视觉短时记忆测试中的表现，并对男、女唐氏儿章在语言障碍评量表的得分情况进行了分析，经过统计分析得出了下列5个结论：Ⅰ。

In the CMKGM preparation section,with the indicators of DS andη, the optimum laboratory conditions preparation of a certain molecular weight of the high DS of CMKGM: reaction time (5～6) h, the theory of the degree of substitution (2～3), the molar ratio of monochloroacetic acid to Sodium hydroxide (2:1～3:1),the reaction temperature (55～65)℃, liquid ratio (10:1～12:1)mL/g, containing enthanol (50～70)%.

CM(来源：5e60ABC论文网www.abclunwen.com)KGM制备工艺研究中，以取代度、表观粘度为指标，建立了制备一定摩尔质量的高DS的CMKGM的实验室制备条件：反应时间(5～6)h、理论取代度(2～3)、氢氧化钠与氯乙酸摩尔比(2：1～3：1)、反应温度(55～65)℃、液料比(10：1～12：1)mL/g、乙醇体积分数(50～70)%。

The results showed that PPC was a thermotropic liquid crystal and displayed the cholesteric banded texture. The reaction conditions had the distinct effects on the propoxy content and liquid crystal property of PPC, with the reaction temperature and content of propionyl chloride increased, the degree of substitution of propoxy increased at the beginning, then trended to steady. The transition temperature and range of liquid crystalline phase were changed with the DS of propoxy, as the DS of propoxy increased, the melt point decreased, and the liquid crystalline phase transition temperature range of PPC get wider.

结果表明，产物PPC具有明显的热致液晶性能，且呈现出胆甾型液晶的彩色条纹织构；反应条件对产物丙酰基含量和液晶性能有显著影响，随反应温度提高和丙酰氯用量增加，产物丙酰基的取代度先增大，后趋于稳定；其相转变温度和温域随丙酰基取代度改变而相应变化，随丙酰基的取代度增大，产物的熔点降低，液晶温度范围变宽。

The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.

碱基含量分析可知，序列的G C含量(49.3％)＜A T含量(50.7％)，密码子第三位点的G、T含量都有较强的偏倚性；序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次)，C→A、T→G颠换数均为2次，其余颠换模式均未发生；转换数明显高于颠换数，Ts／Tv=9.5～19，密码子第三位点的转换数最高，呈现了相当强烈的转换偏倚性；密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239，表明密码子第一位点的替换速率变异最大，第二位点次之，第三位点的替换速率变异相对较小；编码同一氨基酸的同义密码子并非随机使用，表现出一定程度的使用偏倚性；同义替换速率和非同义替换速率分别为0.0787和0.0011，dS与dN值间的差异极显著(Z=4.713，p＜0.01)，而ω=0.0284，明显小于0.3，表明雁属鹅细胞色素b基因序列经历了中度净化选择作用；单步非同义替换(Sing-step nonsymonymous codon substitution，SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同；构建的最大简约树与邻接树拓扑结构一致，支持中国家鹅的双起源学说，即除伊犁鹅外的其它中国鹅品种起源于鸿雁，伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。

Southern blot analysis revealed that more than 70% of excised Ds elements reinserted into rice genome and above 70% of the reinserted Ds elements were located at different positions of the chromosome in rice.

本文介绍了SRAP和TRAP标记的原理、特点，综述了这两种新型分子标记在园艺植物遗传图谱构建、遗传多样性分析以及比较基因组学研究等方面的应用，并对其应用前景进行了展望。

Design: In our study, we defined a new grading system for DS severities. We applied UVA1 phototherapy for DS patients.

在本研究中，建立了一个新的疾病严重度分级系统去定义临床上糖尿病性硬肿症的严重度。

Development of the general selective attention parallels with the development of verbal mental age in DS children, while visual perception and shape discrimination are underdeveloping the verbal mental age. No difference is found in switching attention except error response of shape. DS children have worse performance in terms of sustained attention. Compare to verbal mental age, there is an uneven pattern of the development of attention.

2与词汇理解能力的发展水平相比，DS组儿童的一般选择性注意相对较好，但其视觉感知、形状辨别能力低于其词汇理解能力的发展；转移性注意和持续性注意也相对落后；注意力各组分与词汇理解能力发展不一致，处于不均衡状态。

I think that making is easy to learn to measure the colourful software is a proper way, what 3 Ds, 5 Ds, even foreign colourful kind of can measurelocal double of colors, seven star etc., the object that can do for the efficacy, can operate, belonging to didn't know.

我认为搞易学测彩软件才是正道，什么3D，5D，甚至国外的彩种都可以测（国内的双色，七星等，只能作为效验的对象，能否操作，属于未知。

It is called Fête Nationale in France, though it is generally referred to as "Bastille Day" in English.

在法国，它被称为&Fête Nationale&，不过在英语中却常常被叫做是&巴士底日&。

August 24, 2006 – Shearling came in all shapes and styles for fall, from the snappy vests at Daks and Akris to 3.1 Phillip Lim's cold-beating coat, a sixties-style topper he whipped up in the material he defines as "rough, yet soft."

2006年8月24日：秋天，剪毛羊皮以各种形式和风格出现，从Daks 和 Akris 活泼的背心到3.1 Phillip Lim 的御寒大衣，60年代的款式，用一种他称之为"粗犷但柔软"的材料包边。