查询词典 mean difference

This might not be that significant, but when every beaker counts, losing two beakers in the beginning might mean the difference between getting that iron rush 1 turn faster.

这可能不太重要，不过在每个烧杯都很重要的时候，上来就损失2个烧杯也许等于抢铁的时候差1回合。

Looking at the Beatitudes one by one, he explores what they really mean for us today and shows how applying these positive principles can make a practical difference in anybody's life.

一个一个地仔细领悟这些美好的事物吧，他为生活在今天的我们诠释了这些美好语言的真正含义，并且告诉我们怎样把这些积极的规则应用到我们各个不同的实际生活当中去。

There were no significant differences in the normalization of alanine aminotransferase levels between the two groups at week 12 and 24 (52.5% vs 60.0%, 77.5% vs 75.0%). The mean reductions in serum HBV DNA from the baseline levels at week 12 and 24 were similar between the two groups [5.27 vs.5.36, 6.49 vs.6.18 log (on a base-10 scale) copies per milliliter]. More patients in the telbivudine group had HBeAg seroconversion at week12 than those in the entecavir group (20.0% vs 5.0%, P = 0.043); however, there was no significant difference between the two groups at week 24 (27.5% vs 17.5%).

治疗12周时，替比夫定组和恩替卡韦组患者 HBV DNA 低于检测值率均为50.0%， ALT 复常率分别为52.5%和60.0%（ P ＞0.05）， HBeAg 阴转率分别为30.0%和5.0%（ P ＜0.01）， HBeAg 血清学转换率分别为20.0%和5.0%（ P ＜0.05）；在治疗24周时，两组 HBV DNA 低于检测值率分别为80%和70%（ P ＞0.05）， ALT 复常率分别为77.5%和75.0%（ P ＞0.05）， HBeAg 阴转率分别为45.0%和32.5%（ P ＞0.05）， HBeAg 血清学转换率分别为27.5%和17.5%（ P ＞0.05）；两组均未发现明显不良反应。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

Methods By using SCL90, the parents of 36 children with schizophrenia were studiedResults The parents＇ mental health (including personal relations, depression, anxiety, paranoea, somatization, hostility and fear) was worse than the normal model (P01 or P05) The mean scores of somatization, depression and anxiety of the children's mother was significantly difference from those of their father (all P05) The average score of personal relation factor in mother was obviously lower than in father Conclusion Clinical medical and nursing staff should pay attention to the mental health of the diseased children's parents and provide corresponding mental interventional measures

目的 探讨精神分裂症患儿父母心理健康状况。方法采用SCL90 对36例精神分裂症患儿父母进行调查。结果患儿父母整体心理健康状况较常模差，其中人际关系、抑郁、焦虑及偏执4项因子分与常模比较，差异有极显著性意义（均P01）；躯体化、敌对和恐怖3项因子分与常模比较，差异有显著性意义（均P05）。患儿母亲躯体化、抑郁、焦虑3项因子分均明显高于父亲，两者比较，差异有显著性意义（均P05）；而人际关系因子分明显低于父亲。结论临床医护人员应重视精神分裂症患儿父母的心理健康状况，并给予相应的心理干预措施。

The mathematical model of complex countercurrent multi-effect evaporation with condensed water flash is established, which aims at minimum annual cost (including cost of fresh vapor, vacuum pump power, evaporator, maintenance and depreciation).Based on such decisive variables as the pressure of fresh vapor, the pressure of condenser and heat-transfer mean temperature difference of vari-effect,the model is solved by the complex method,Lagrangian multiplier method, iteration method and matrix method.The practical example indicates that the influence of the pressure of fresh vapor, the pressure of condenser and flash of condensed water on the optimum design results is notable.

建立了带有冷凝水闪蒸的复杂逆流多效蒸发系统优化设计的数学模型，该模型以整个蒸发系统的年总费用(包括加热蒸汽年费用、真空泵年动力费用以及蒸发器和辅助设备的年折旧维修费用等)最小为优化目标，以生蒸汽压力、冷凝器真空度及各效有效传热温度差为决策变量，提出一种新算法———复合形法结合Lagrangian乘子法、迭代法和矩阵法求解模型。

This paper analyzes the difference between new two-pipe heating system and traditional heating system, puts forword the way of determining mean friction resistance of new two-pipe heating system.

免费论文，内容包括自然循环作用压力水力平衡恒温阀预设值不平衡率双管计量计量供热供热供热系统问题分析

The difference in yield, its components, basic characteristics such as mean size and bare tip length of cobs, plant height, base internode diameter, secondary root number per plant, LAI and DMW at the same measuring date, between the three treatments were insignificant respectively; the optimized fertilization made the three leaves around corn cob rather smaller, the cob leaf slightly thinner, a decrease of the cob leaf chlorophyll content at greater rate at the later stage, and dry matter accumulation amount slightly reduced from flowering to grain filling.

在优化施肥、秸秆还田优化施肥及传统施肥条件下，夏玉米穗长、穗粗、秃顶长、株高、基部伸长节间粗度、单株各层次生根条数、同一时期的叶面积指数和干物质积累量无显著性差异。在优化施肥条件下，夏玉米棒三叶总叶面积略微减少，穗位叶叶片略微变薄，生育后期穗位叶叶绿素含量下降稍快，吐丝-收获的干物质积累量略有下降。

The geoid is used to be regarded as the theoretic global vertical reference .The actual national height references are regional mean sea levels determined by tide gauge station. The difference between them is apparent. The satellite altimetry has developed as a kind of important space geodetic technique since 1970s.

大地水准面作为全球高程测量的理论基准面，在现实工作中，国家或者地区高程系统的起算面是利用验潮方法来确定局部平均海平面的，两者之间的差距是显而易见的。

A snow cave can mean the difference between life and death during a storm, but digging one requires not just know-how but the right conditions: deep snow, a steep slope, and snow of the right consistency for digging.

在暴风雪来临的时候，一个雪洞可能意味着生和死的不同。但挖一个雪洞不仅仅是需要挖的决窍，还需要合适的情形：雪的深度，斜坡的陡峭程度，雪的密实程度是不是适合开挖。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。