The study has obtained the following conclusion : the increase of tonnage or the decrease of water depth will lead to an obvious decrease of the maximum velocity , while the increase of the tugboat power causes an unconspicuous increase of the maximum velocity 通过本论题的研究，得出以下结论：船舶排水量的增加，水深变浅，极限航速都将减小，且这种减小的趋势较为明显；增加拖轮功率，极限航速将增大，但增大的趋势并不十分明显。
Along with the doping content increases , the dielectric constant initially increased and then decreased . the dielectric loss was on the contrary . 4 . bt _ 4 doped with bi _ 2o _ 3 or v2o5 got a lower sintering temperature . a babi4ti4o15 phase raised when bi _ 2o _ 3 was doped and the dielectric properties ruined 3 . bst中掺杂zro _ 2 ,晶粒尺寸增大,掺杂量较大时会产生第二相bazro _ 3 ,介电常数随掺杂量的增大呈现先增大后减小的趋势,介电损耗则先减小后增大。
By studying the luminescence mechanism and the optical spectra , the two reasons for the diminish of light yield are given : the absorption of the fluorescence by the point defects when that produced and the scatter of the fluorescence by the macroscopic defects when that transmitting . in ce : yap scintillators , the available approach to improve the light yield is to diminish the self - absorption of the point defects 通过光谱分析和对发光机制的研究，指出在产生荧光辐射过程时晶体中的点缺陷对荧光的吸收以及荧光收集过程中宏观缺陷对荧光的散射是造成晶体光产额减小的原因，通过减小晶格缺陷是提高晶体光产额的有效途径。
The ratio of the length to the depth of scour hole decreases with the increasing scour depth , in spite of the reason is the increase of the air concentration , the decrease of the jet velocity or the decrease of the jet thickness . 5 . governing equations of the aerated jet flow are established 掺气对冲坑形态并没有实质性的影响，冲坑的宽深比随冲坑深度的减小而增大，无论造成冲坑深度减小的原因四） 1大学i学博士学位论文是掺气、降低流速还是减小入射水舌厚度，其变化规律都可用相同的直线关系表示。
With the input of a vibration acceleration history of subway train , a full dynamic analysis of soil - pile - structure is carried out . the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed . some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source , vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source , the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction , the vibration velocities and accelerations at the end points of each story of a building are the nominal identical , which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings 本文以北京地铁八王坟车辆段地上超大结构(车辆段大平台及其上的小区楼房)及其地基基础为研究对象，在研究和分析有关资料的基础上，用快速拉格朗日有限差分法软件flac建立了二维数值分析模型，并以列车振动加速度时程作为模型输入，进行了地基?桩基础?地上结构的整体动力学分析，分析了地铁列车运行产生的振动在地面的传播规律及其对地上结构的影响，得到了如下结论： ( 1 )随着与地铁线路距离的增大，地面的振动强度有减小的趋势； ( 2 )地面竖直方向的振动强度较之水平方向的略大； ( 3 )随着与振源距离的增大，在水平方向上，地上各幢楼房的振动强度由底层和顶层的最大、中间层的最小逐渐过渡到沿楼层增高而减小； ( 4 )在竖直方向上，每幢楼各层端点的振动速度、加速度完全相同，表明楼房各层在竖直方向上的运动状态一致； ( 5 )各幢楼房竖直方向的振动强度比水平方向的大； ( 6 )增加轨道弹性是减轻地面和地上建筑振动的有效途径。
The yield of ac decreases with the increase of koh , activating temperature and activating time while at first the amount of iodine adsorption increases then decreases . the amount of iodine adsorption of ac reached maximum when the ratio of koh to anthracite , activating temperature and activating time are 5 , 750 c and 1 . 5 hours respectively 随着碱炭比的增加，活化温度的升高，活化时间的延长，所得活性炭的收率减少，碘吸附值则呈先增大后减小的变化规律，在碱炭比为5 ，活化温度为750 ，活化时间为1 . 5h时，活性炭对碘的吸附出现峰值。
The results showed that the displacement of the surrounding rock of cavern evidently decreases with the increase of in - situ stress side pressure coefficient , as well as the decreasing rate of surrounding rock displacement of cavern with increasing at the condition of < 1 are significant larger than that of > 1 ; when < 1 , the displacements of measured points in cavern increase then decrease with the increasing incident angle of shear wave , while , when > 1 , the displacements decrease then increase with the increasing incident angle of shear wave , and the influence of incident angle on the displacements of measured points tends to decrease with the increasing in - situ stress side pressure coefficient 分析结果表明，地震荷载作用下，硐室位移随地应力侧压系数的增加明显减小，地应力侧压系数< 1时的硐室位移量值随侧压系数的变化幅度明显大于地应力侧压系数> 1时的情况；当侧压系数< 1 ，随剪切波入射角的变化，硐室测量点位移响应先增加后减小；而当侧压系数> 1 ，随剪切波入射角的增加，硐室测点位移先减小后增加，同时随地应力侧压系数的增加有减小的趋势。
Oxygen atoms in the air are known to actively react with the fresh gaas . it was observed that the ga - o bond is stronger than that of as - o and that ga atoms preferentially migrate towards the surface leaving vacancies behind in the subsurface region . this behavior can convert the subsurface layer into an as - enriched one 本文分析了硫钝化后源漏饱和电流减小的原因，认为gaas表面极易被空气中的氧原子氧化，由于ga - o键比as - o键结合的更紧， ga原子优先向表面移动，这导致亚表面层成为富as层。
The bats can simulate well on the temperature value and change of surface soil and subsurface soil , which can reflect very well that the daily changed temperature of subsurface is obviously lower than that of surface . snowmelt is considered in the computing of mohe ' s soil temperature , which decrease the effect of forced comeback . in the result , the characteristics of temperature stablization in snowmelt time span and the variety trend in other time span also are well simulated 2 ) bats模式对漠河表层和次表层土壤温度的变化趋势及量值有很好的模拟性能，能够反映出次表层土壤比表层土壤温度日变化幅度明显减小的特点，在对漠河融雪期间土壤温度的计算过程中，考虑了雪融，减小了强迫恢复作用，对融雪期间温度稳定少变的特点也能很好地模拟出来。
