Measuring of Quantity of Matter-mass and the Measuring of Inertia of Matter-momentclm

A new definition of inertia,i.e. the momentum is the measuring of inertia of matter, is proposed. The article through and etc., subjects, the correctness of the new notion of inertia:The monentum is the measuring of inertia has been demonstrated, and the unsolved contradictions of the traditional definition of inetia. And the mass is the measuring of inertia has been revealed.     

Simulation of regulatory driving cycle for motorcycle on the engine test bench

Dynamic performance test methods and experiments of motorcycle engine are investigated. The models of clutch, transmission and brake are simulated by changing the resistance torque imposed by the dynamometer to the engine and with the moment of inertia and road resistance data, the model of a 125 mL motorcycle is established on the dynamic engine test bench. On this basis, the road tests are simulated with models of different inertial mass. Compared with the experiments on the drum tester, the results show that when the inertial mass is set to 1.1 times the datum mass of the motorcycle, the deviations of its maximum speed, sliding distance and acceleration time are no more than 3% and the fuel consumption of 100 km is no more than 5% except the speed of 35 km/h. Through driver operational model, the effect of different gear change models on vehicle acceleration performance is studied. Finally, the regulatory driving cycle for motorcycle is implemented on the dynamic bench and the measurements show that it has high ability to accurately control speed.     

Energy-momentum Tensor of Electromagnetic Field Outside Neutron Star With Magnetic Moment

The energy-momentum tensor of electromagnetic field outside the neutron star with magnetic moment is cal-cuated based on the metric tensor and 4-dimmensioal potential outside the spherical symmetric mass with magnetic moment. The numerical calculation and the distributed curve indicate that the electromagnetic energy of the magnetic-dipole will be greater in curved space-time than in Minkowski space-time.     

Several Matters to be Noticed During the Moment Modulation Design of Prestressed Concrete Frame

The moment modulation of prestressed concrete frame has some differences compared with that of continuous beam.Based on the analysis of ratio of column linear rigidity to beam one,form of load,second moment and plastic hinge in column,this paper is intended to get some helpful advise for moment modulation design.     

Flexure-torsion Analysis of Variable-curvature-box Girder Considering Non-coincidence of Torsion Center and Gravity Center

In order to consider the effect of non-coincidence of torsion center and gravity center,the rectangular variable-curvature-box girder with vertical symmetrical axis is studied. Considering the influence of shear deflection and non-coincidence of torsion center and gravity center, the elastic equilibrium formulas are established. Based on deformation equations of the girder and the relations of inner forces and deformations,the flexure-torsion differential equations are developed. The equilibrium differential equations and Galerkin methods formulas for clothoid curved box girder are presented.     

SEVERAL THEORETICAL PROBLEMS OF VISCOELASTICITY MEASUREMENT OF BLOOD

In order to tackle the present difficult problems in viscoelasticity measurement of blood and other biofluids with Couette and cone-plate rheometers, the effect of inertia of inner cylinder and sample on the measurement result is studied. Rheological models of the instruments are reconsidered. Based on theoretical analysis of the flow state of the non-Newtonian fluid,a corrected method for calculating Theological parameters of sample is proposed.     

Study on Heat and Mass Transport of Porous Saline Materials

On_site measurement and numerical modeling are made for the interior heat mass distribution. The heat and mass coupling equation system to the porous saline materials in one-dimensional temperature and mass degree field was established. The dynamic distribution features of the materials in moderate temperature and mass degree field were obtained. The result of numerical modeling coincided with that of actual measurement and testified to the numerical model. The study has significance in promoting the interrelated sciences in their studies on the problem of heat and mass transport in porous saline materials.     

Site selection for a measuring and controlling device of initial phase based on maximum elevation angle

We introduced a site selection method based on the modified maximum elevation angle intended for mountains possibly affecting the measurement and control of the initial phase in a launching port located in mountainous areas. To use the former analysis results, the method, along the helices whose center is the launcher's project point, analyze each point's visibility on the helices. The visible area can be obtained by comparing the visibility at each moment in the initial phase. Finally, there can be three points in the above visible area with distances longer than required.     

Microstructures, Reaction Kinetics and Properties of Reaction Between Magnesium and Silica Glass

In earlier calculation models,the stiffness centers in frame-shear wall structures have been located by the structural torsion stiffness.However,the results are illogical owing to the difference between the distortion character and the shears distribute mechanism of the frames and shear walls.In this paper,a new formula for calculating story stiffness is introduced,which can consider the stiffness of the frames and shear walls at the same time.The structural stiffness centers,the torsion eccentric distances and torsion effect are calculated,and the stiffness of elements is considered also.It is shown that the concept of the presented stiffness model is clear and the results are reasonable,which can be used to calculate the appreciative torsion effect.     

AREA-VECTOR METHOD CALCULATJJNG THE DISPLACEMENTS OF BEAMS AND FRAMES

A new method with which to calculat the displacements of beams and frames is presented. The areas of tending moment diagram of beam or frame and the slope at the origin of the elastic curve are treated as some rotatable vectors with this method. Angular displacement and in-line displacement can be calculated by using the projection and moment of these vectors. This method can be used to calculate displacement of the bar and the bar syttem ( including three dimensional forms. ) , which made from linear or ncnlinear elastic materials. The cross section of the bar is changeable.     

Numerical Analysis for Torsion of Prismatic Bars with Sectorial Cross-section

In mechanical design and application, in order to calculate torsion angle and shear stresses of prismatic bars with seetorial cross-section undergoing extemal couples, the numerical method is presented. The torsion equation is nonhomogeneous partial differential equation. First, using the method of separation of variables, torsion stress function is acquired in polar coordinate. Then, the method of boundary collocation is improved to calculate the undetermined parameters. Finally,approximate numerical solutions of stress function and shear stresses in cross-section are obtained. It is given the several calculation results of shear stresses of prismatic bars with different vertex angles. These results show that the method has some precision and application feasibility in engineering design. The method of separation of variables is combinied with the method of boundary collocation simplified calculation process.     

Signal Processing Method for Coriolis Mass Flowmeter Based on Lattice Notch Filter and DTFT

A novel signal processing method for Coriolis mass flowmeter is proposed based on time-varying signal model. First, an adaptive lattice notch filter is applied to filter the output signal, whose frequency, amplitude and phase are time-varying based on the random walk model, of Coriolis mass flowmeter to get its frequency and enhanced signal. Then, by short window intercepting, the DTFT algorithm with negative frequency contribution is introduced to calculate the real-time phase difference between two enhanced signals. With the frequency and the phase difference, the time interval between two signals is calculated. Simulation results show that the proposed method is efficient. Furthermore, the computation of algorithms is simple so that it can be applied to real-time signal processing for Coriolis mass flowmeter.     

Self-incompatibility in sexually propagated cultivated plants

Whenever self-incompatibility occurs in cultivated plants it can rarely be explained on the basis of a simple oppositional allele self-incompatibility system, and moreover, such self-incompatibility is rarely complete but is frequently characterised by pseudo-self-compatibility. Bearing in mind the selection pressures operating during mass cultivation, it would be surprising if many established crop species had retained a completely effective self-incompatibility mechanism. Furthermore, some crop species have a breeding system which is geared to produce an intermediate level of hybridit; a conflict between inbreeding and the inertia of the genetic system appears to be responsible for maintaining this intermediate hybridity level. The implications of this situation on inbreeding of cultivated crops are discussed.     

Apply the Hybrid Method of FDTD/MoM to Calculate the Radiation from the Aperture

This paper presents a hybrid method of the Finite-Difference Time-Domain(FDTD) and the method of moment(MoM) to compute the radiation from the aperture.The FDTD is a commonly used electromagnetic simulation way.It can solve the question with complex dielectric,but it is difficult(even cannot) for FDTD to calculate the far field because of large compute time and computer memory.So the authors can make use of the FDTD to get a large number of near electric field intensity,and then use the MoM,which based on electric field integral equation to compute the far field.Using this procedure,the authors solve the radiation of the box with apertures on one or more sides and reduced the compute time and the computer memory.     

A low-cost procedure for multi-purpose,large-scale field evaluation of forage crop genetic resources

The proposed procedure for field evaluation of large forage germplasm collections allows for simultaneously performing germplasm characterization, stratified mass selection and the assessment of the genetic structure of populations as revealed by among-population vs. within-population genetic variances. Unreplicated genotypes are randomly assigned to different units (grids) with the constraint that each unit should have a fixed proportion of genotypes from each population. The relative homogeneity of plant material between units allows for investigating major spatial trends.Within each unit, one plant is actually a clonal control allocated randomly and used for estimating the environmental variance. The units have a square shape, with plants grown in dense planting arranged at same spacing between and within rows. A set of adjacent units forms a column, and several parallel columns may exist. Observed data can be adjusted for the effects of: i) column of units; ii) row of units (by covariance analysis, using row number as the covariate); and iii) column of plants within units. The procedure was applied to the evaluation of 4,480 lucerne genotypes subdivided into 128 units and grown at 10 cm spacing. The efficiency of data adjustment, estimated as the variance among clones for unadjusted data relative to that for adjusted data, was 33.7% for length of the main stem, 9.8% for plant dry weight, and greater than 7% for three out of four other evaluated traits.     

Seismic Analysis and Shaking Table Test of China Pavilion for EXPO 2010 Shanghai

China Pavilion for Expo 2010 Shanghai is designed with peculiar style and special structural system. The main structure is composed of four concrete tubes with steel-concrete composite floors. It is designed with a shape of inverted trapezoid in elevation. The fundamental vibration mode of this structure is a torsional mode due to the special shape with greater moment of inertia in upper floor, which exceeds the limit value stipulated in Chinese code. The seismic analysis of prototype is carried out by ANSYS program to evaluate its overall seismic performance and improve the structural design. At the same time, shaking table tests of a 1/27-scale structural model are conducted. It is faund that although the first mode is torsional, the torsional responses are not so large, which agrees well with the results of shaking table tests. Both the test results and calculation results demonstrate that the designed structural system satisfies the seismic damage patterns and meets the pre-defined performance objectives. Based on the test results, suggestions for improving design are also put forward.     

Adaptive Image Segmentation Method Based on Ncut

In order to solve the problem that requires some factors by manual in the traditional Ncut algorithm, limit the generality of the algorithm, an adaptive image segmentation method is proposed by improving the traditional Ncut algorithm. First, instead of the two control parameters on the calculation of weight matrix that influence the segmentation results in the traditional Ncut algorithm by groups of potential theory; then in order to reduce the sensitive to the number of the cluster and the center of the cluster in the K-means algorithm, calculate on the eigenvector of the Ncut algorithm by the minimum spanning tree, to get the final number of cluster and the center, and then uses the K-means clustering algorithm to get the final segmentation result. The experimental results show that the proposed method not only improves the versatility of the algorithm, and the segmentation is good.     

多点锚固体外无粘结CFRP预应力加固RC梁的抗弯性能

在梁侧或梁底用波形齿横向张拉CFRP片材并锚固的体外预应力加固混凝土结构技术,对3根完全相同的7 m跨T形截面梁进行加固：其中2根梁侧面加固;1根梁底部加固。试验表明：多点锚固体外无粘结CFRP预应力可以依据构件的弯矩来调整各段的加固量从而更有效的利用CFRP材料的高强性能;梁底与梁侧加固对提高构件的抗弯刚度差别不大;波形齿能彻底解决预应力CFRP片材的锚固问题。以该3根加固梁的试验结果为基础,提出了梁体极限状态下塑性绞区长度的体外无粘结预应力碳纤维加固受弯构件的抗弯承载力公式,以及考虑二次效应的有效惯性矩法的挠曲变形的计算公式,通过与试验值的对比分析可知,所提出的方法可供设计参考使用。     

两种测定风化煤与土壤腐殖酸含量方法的比较

选择GB11957-2001中的容量法和土壤腐殖质组成测定法，比较二者对风化煤、耕层土壤（石灰性褐土）、矿区土壤（栗钙土）腐殖酸含量的测定结果，及其实验过程、样品用量的不同，并对土壤腐殖质组成测定法中重铬酸钾溶液浓度进行比较选择。结果表明，GB11957-2001中的容量法对风化煤、耕层土壤（石灰性褐土）腐殖酸含量测定结果约为土壤腐殖质组成测定法的4倍，但对于腐殖酸含量较低的矿区土壤（栗钙土），两种方法测定结果相同。相对而言，GB11957-2001中的容量法在实验过程中更易达到实验要求，具有易操作性。通过实验，提出了风化煤、土壤样品分别在两种实验方法中的合理用量，和土壤腐殖质组成测定法中重铬酸钾的合理浓度为0.4000 mol/L。     

Study on Heat and Moisture Transport Properties of Moist Porous Media

By analyzing heat and mass transport process and transport properties of moist porous media, this paper established a computational model for one dimensional field of heat and moisture transport process. Based on the distinguishing characteristic functions, the inner temperature and humidity distribution of porous media was worked out. With the actual spot measurement, the heat and moisture properties were obtained by nonlinear least square method.