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breadth index相关的网络例句

查询词典 breadth index

与 breadth index 相关的网络例句 [注:此内容来源于网络,仅供参考]

Based on the importance value, the Shannon-Wienner and Simpson index of niche breadth, the Schoener's niche proportional simulation and the Levins' niche overlap of the main trees in Qiandaohu water conservation forests were calculated in the paper.

以群落样地作为资源状态,以树种的重要值作为树种对资源位计测依据,用Shannon-Wienner、Levins和Schoener的生态位计测公式,分析了千岛湖水源涵养林26个主要树种的生态位宽度、生态位相似性比例和生态重迭指数。

The spatial niche breadth of mango anthracnose was found to have a higher index, indicating a full use of spatial resource by the mango anthracnose.

结果表明芒果炭疽病的空间生态位宽度指数比较大,对空间资源利用较充分。

The difference between the index in the shoulders with subacromial impingement syndrome and the index in normal shoulder was highly significantly (P.0001). Acormion index can be accurately reflected the acromion and the humeral head in the coronal position.

结论]肩峰指数可准确的反映肩峰与肱骨头在冠状位上的位置关系,肩峰下撞击综合征与较大的肩峰指数有关。

The nighttime blood pressure descend a rate to turn down (p<0.05).in the heart rate variation index sign,in addition to comparing with nighttime,the sdnn daytime increased,other index signs had no obvious difference.but each index sign of hrvin matched control in dynamicblood pressure day and night,the regulation presented a good relativity variety.conclusion the hypertension patient′s pneumogastric nerves function is dual damaged,expressing turn down for the hrv with day and night regulation disappeared.

观察组夜间血压下降率减低(p<0.05),其心率变异性指标中,除sdnn白昼较夜间增高外(p<0.05),其他指标无明显差异。而对照组hrv各指标则与动态血压昼夜节律呈现出良好的相关性变化。结论高血压病患者交感、迷走神经功能双重受损,表现为hrv减低和昼夜节律消失。

Evaluated, in the four stages of one month, 3 months, 6 months and 12 months after restoration, their Plaque Index, Gingival Index, Gingival Bleeding Index, Probing Depth and X-ray bone absorption. Subgingival plaque samples were isolated and cultured by the selective medium of black-pigment bacteria, F. nucleatum, Actinomyces viscosus and anaerobium.

临床选取32名种植患者的44枚种植体,记录了修复后1个月,修复后3个月,修复后6个月,修复后12个月四个时段,入选种植牙的菌斑指数,牙龈指数,牙龈出血指数,探诊深度;采用产黑菌、放线菌、具核梭杆菌及厌氧菌的选择性培养基对龈下菌斑标本进行了分离培养。

The instruments used ATmega16L onboard A / D converter channels to achieve the cold wind pressure, the hot blast pressure, the furnace top pressure and cold wind current capacity four way analog acquisition;used PWM waveform produced by ATmega16L internal timing / Counter to achieve the entire differential pressure ,the cold wind flow and the permeability index three-way analog output for recording instruments; realized the cold wind pressure, the hot blast pressure, the furnace top pressure, the cold wind current capacity and the entire differential pressure five group parameter tour demonstration and the fixed-point demonstration by key-elect key's coordination during demonstration blast furnace permeable index; produced acousto-optics alarm when the permeable index across the upper and lower limits;used RS-485 realizing the communication with the superior computer.

仪表利用ATmega16L自带的A/D转换通道实现对冷风压力、热风压力、炉顶压力及冷风流量四路模拟信号的采集;通过ATmega16L内部的定时/计数器产生的PWM波形来实现对全压差、冷风流量及透气性指数三路模拟量输出供记录仪表使用;通过键选键的配合在显示高炉透气性指数的同时实现冷风压力、热风压力、炉顶压力、冷风流量及全压差五路参数的巡回显示与定点显示;当高炉透气性指数越上、下限时,仪表产生声光报警信号;仪表采用RS-485与上位机实现通信。

In addition last year it's the fact that majority listing company's achievements have a larger scale growth enabling the computation cardinal number of the index have the obvious rise, furthermore this 3,000 index structure and the original 1,300-odd index had the obvious distorted factor, which also could not simply analogize.

加上2006年大部分上市公司的业绩有较大幅度的增长也是事实,使得指数的计算基数有了明显的上升,再加上此3000点指数的结构已和原1300多点指数时有了明显的失真因素,也不能简单类推。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。

The results show that injection locking synchronization is realized when injection rate is large enough. In the injection locking regime, similarity index is larger for external modulation than that for direct modulation. If injection rate keeps unchanged, synchronization is little affected by modulation index, but it is affected by modulation frequency. Since outputs of the master laser are antiphase for direct modulation and external modulation, the fluctuations of similarity index with modulation frequency for the two lasers are contrary.

研究结果表明:当注入强度足够大时,系统实现注入锁定同步,外部调制的相似指数大于内部调制;注入强度恒定时,同步品质几乎不受调制指数的影响,而受调制频率的影响;由于内部、外部调制引起主激光器的输出反相,两种调制方式下同步品质随调制频率的变化趋势也相反。

The relation of the chromatographic retention indices of alkene to topological index,double bond atomic hybridization state index,polarizability effect index of branched chain to double bond atomic,immobile liquid polarity values and column temperatureat different temperatures on different stationary phases was studied.

通过对部分烯烃在不同固定相不同柱温下的1031个样本集的气相色谱保留指数值与其部分参数关系的研究,发现RI与拓扑指数、双键原子杂化状态指数、支链对双键的极化效应指数、固定液极性值及柱温的关系可表示为:^RI=-58.138+57.7460Q-8.2591Q+0.120T+0.807CP+36.460PBD+7.919DHSI(R=0.9989)继以留一法(Leave-one-out,LOO)进行交互检验,相关系数RCV=0.9977,说明所建模型具有良好的稳定性和预测能力,较好地揭示了烯烃类化合物气相色谱保留指数RI随固定相极性、柱温的改变而变化的规律

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