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Therefore the dispersion curves obtained in the field are primarily consisted of the first mode. For a heterogeneous elastic solid consisting of three homogeneous layers whose interlayer has low velocity, the phase velocity V〓 of the first mode will also close up to the Rayleigh wave velocity of the bottom layer when frequency f→OHz, but V〓 of the first mode will close up to the shear wave velocity of the interlayer when f→∞, and there is a cut-off frequency at high frequency region for the first mode and V〓 close up to the compressional velocity of interlayer when interlayer is liquid.

当三层固体介质中存在软夹层时,若f→OHz,则其基阶模式的相速度V〓→V〓(V〓为最底层介质的瑞利波速度);若f→∞,其基阶模式V〓→V〓(V〓为中间层介质的横波速度);若三层介质中存在液体夹层,当f→OHz时,基阶模式V〓→V〓,而基阶模式在高频段存在一个截止频率,截止频率处的瑞利波速度V〓→V〓;由此可判定,野外实测的相速度频散曲线不仅有基阶导波模式,同时还应有高阶导波模式波的存在,接收信号中存在模式间的跳跃,因此频散曲线会产生"之"字形现象。

First of all, the report introduced evolution, achievments and problems in the study of anisotropy in the inner of earth. The first-order hyperbolic system of equations is work out, which is used to describe the wave motion in 2D transversely isotropic media. Utilizing the characteristics of free-divergence, We have imposed MacCormack theme that is used to simulate multicomponent records in anisotropic media and have developed a fast high order vectorized finite-difference algorithm adapted for the vector supercomputer.

本文首先阐述了地球内部介质各向异性研究的沿革、成就和问题,接着给出了描述二维横向各向同性介质中波动的一阶双曲型方程,利用其自由发散特性,构制了各向异性介质中多波多分量地震记录数值模拟的MacCormack算式,导出了适用于并行计算的二维横向各向同性介质中波动的有限差分模拟算子,该算子具有可并行化计算、相位差小等优点。

The confidentiality of the existing rules and regulations to conduct a comprehensive clean-up, failed to meet the job requirements of confidentiality under the new situation, the timely amendment, supplement; right not included in the management of classified computers within the LAN, it is necessary to develop practical management systems into effective Monitoring scope; the establishment of classified removable storage media, a registration system for the device model, hardware number, custodian, enable time registered in the books, and report to the offices of record; the establishment of classified computers, classified removable storage media to go out the registration ledger system; non-classified computer connected to the Internet is strictly prohibited non-classified computer and between computers with classified national security department without the approval of the removable storage media to transfer data directly; classified obsolete computers and removable storage media must be submitted to Council Committee for the record confidentiality, rosters later physical methods for destruction.

对现有的保密规章制度进行一次全面清理,对不适应新形势下保密工作要求的,及时进行修订、补充;对未纳入局域网内管理的涉密计算机,要制定切实可行的管理制度,纳入有效监控范围;建立涉密移动存储介质登记制度,将设备型号、硬件编号、保管人、启用时间等登记在册,并报局办公室备案;建立涉密计算机、涉密移动存储介质外出登记台账制度;严禁涉密计算机接入互联网,严禁非涉密计算机与涉密计算机之间用未经国家保密部门认可的移动存储介质直接传输数据;涉密计算机及移动存储介质报废,须报局保密委备案,登记造册后用物理方法进行销毁。

In order to research dielectric barrier discharge characteristics at characteristics at various exciting voltage peak V(subscript P-P and dielectric thickness l(subscript d, a DBD experiment system was established. Using Q-V Lissajous figure method, the effect of exciting voltage peak V(subscript P-P and dielectric thickness l(subscript d on the main discharge parameters were studied.

为了解介质阻挡放电在不同激励电压峰值V和介质厚度l下的放电特性,通过建立介质阻挡放电试验系统,采用Q-V Lissajous图形法研究了激励电压峰值V、介质厚度l对DBD主要放电参量的影响。

The dielectric barrier corona discharge in a wire-cylinder configuration and the dielectric barrier discharge in a coaxial cylinder configuration are investigated, then the dissipated power and gas gap voltage are calculated by analyzing the measured Lissajous figure.

采用同轴管状反应器产生介质阻档放电,采用同轴线管反应器产生局部电晕放电及介质阻档电晕放电,研究介质阻档放电与介质阻档电晕放电在放电特性与脱硫能耗上的差异。

The study has indicated that the adsorption capability of nitrobenzene transporting in silt medium is better than that in sand medium.

研究表明,硝基苯在淤泥介质中的吸附能力大于砂砾介质,其在淤泥介质中的阻滞系数为2.22,在砂砾介质中的阻滞系数为1.74。

Environment radon is mainly from rock and soil in geological environment, but the research is not connected with geological environment now. On the basis of physical field, the theoretical distribution model of radon in soil and exchange model of earth—air are set up by using Fick diffusion law and Dacy law, and then the research of environment radon is linked with geological environment. This paper described how the evry parameter of the theoretical model influence the radon concentration in air. The results of research indicat that molecule diffusion of radon is different from it's eddy form. Under the condition of surface radon source, the model experiment is used to study the transportation and distribution of radon in medium. The data of experiment show the relationship between radon and depth can be described by exponent. If the radioelement is well—distributtion, the concentration of radon in different depth or in different point at the same depth change with time, but the accumulated exhalation amount of radon at different point on the surface of model are close in relative long time. The author studied the exchange of radon between mediums and verified the theoretical models too.

环境氡主要来自岩石、土壤,而目前环境氡研究中与地质环境结合很少,为此作者以物理场为基础,运用气体运移的费克扩散定律和达西定律,建立起壤中氡浓度分布与大地—大气间氡交换理论模型,首次在理论上将环境氡与地质环境结合起来;论文中从理论上讨论了模型中各参数对空气中氡浓度的影响,发现空气中氡运移的分子扩散方式和湍流扩散方式存在明显差异;通过面状氡源条件下的氡运移模型实验,研究了介质中氡的运移与分布,实验数据表明氡浓度随深度的变化规律可用指数函数描述,在放射性元素分布均匀的条件下,介质中不同深度和同一深度不同点的氡浓度随时间而变,但介质表面不同点在较长时间内向空气中累计释放的氡的量是相近的;同时研究了不同介质间氡的交换,并验证了所建立的理论模型;运用理论模型预测青岛市城区壤中氡浓度、江西临川一住宅区空气中氡浓度及江西二个测区的区域空气中氡浓度分布,取得了较好的效果。

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下,进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析;选择编号10322、10675与51534之大肠杆菌为实验菌株,依定量培养之生长曲线取出代表不同时生长特性时期的培养时间,利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析,以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA;当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2;加以负载有平均工作功率密度294 mW/m2;从生长曲线与电性效能来分析,得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现;对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现,则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2;另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现,以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2;对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能,则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

The results of research on the factors affecting titanium tannage show that high concentration NaCl medium has larger negative effect on titanium tannage. When the NaCl concentration exceeds 5%, the titanium tanning action is reduced rapiddly. Traditional NaCl pickling is unsuitable for titanium tannage, tanning in water medium directly, the best tanning effect can be obtained, so titanium tanning can not only eliminate chrome pollution, but also diminish salt pollution. The optimum tanning conditions for HPZ-Ti tan liquor are pH3. 5, TiO〓 offer of 7. 5%(based on the weight of 65% moisture pelt), the best Bascity of tan liquor is between 30% and 50%.

以HPZ—Ti鞣液为基础,研究了不同鞣制介质,鞣制pH值,鞣剂用量和浓度,鞣液的碱度,不同提碱剂,不同的预处理和后处理等因素对钛鞣的影响,结果表明:高浓度的NaCl溶液介质对钛鞣有很大的负面作用,当介质NaCl浓度超过5%,革内钛的结合量和革的Ts明显降低,传统的高浓度NaCl浸酸工艺不适合于钛鞣,在水介质中直接鞣制效果最好,所以钛鞣不仅消除了铬污染而且大大降低了盐的污染。

The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.

塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的"瓶子模型",解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了"缝洞单元"的概念,并制定了"缝洞单元"纵横向划分的基本原则和依据及划分方法,并对"缝洞单元"进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。