When the IP3 concentration remains stable, by varying intracellular Ca2+ level, the bell shape curve of the open probability of IP3-receptor/Ca2+-channel could be observed.

In order to build up the calculating formula of the lateral stiffness for the bell shape rubber spring, a group of heuristic functions are assumed with regard to its deformed feature.

In order to quantitatively calculate the stiffness of the complicated bell shape rubber spring, we set up the outline equation of the spring by means of the step function and derive the axial stiffness calculation formulas with the help of the variation principle and the second Castigliano's Theorem.

According to the sectional patterns, the elasticity energy field potentials of the formation pressure in the area are divided into three types with bell shape, stable hillock shape and funnel shape. They respectively indicate the Preservation and loss degrees of elasticity energy in each gas reservoir.

However, a bell shape age structure was found with infrequent recruitments and the <60a age class accounted for 14% of total individuals in the cold high altitudinal treeline.

Results: The plain films demonstrated the mass at the apex of lung in 3 cases, enlargement of cervical intervertebral foramen in 1. CT scan revealed that the average diameter of the masses was 4cm, with spindle shape in 4, dumb bell shape in 2 cases.

Because of some unfavourable conditions in the area (i.e. complicated seismic and geologic condition, thin reservoir, big depth and so on), only the clear “bell shape”reflection pattern consisting of the “bright spot”reflection from gas reservoir bottom and the reflection from overlying formation is the important indication of gas reservoir in seismic section.

The radial profiles of bubble frequency at different levels in the spout exhibit a bell shape; the bubble frequency decreases with increasing height.

At the high concentrations (0.1-0.5 M) used in the permeability experiments, glutamate eliminated the bell shape of the voltage dependence of VDAC channel conductance.

Disintegration of the materials with 70% PEO content and dumb-bell shape was noted at 3 wk.

Amplitude distribution of these fluctuations (reaction "noise") are of the "bell" shape, which is typical for the normal Gaussian distribution.

Bell shape changes of the passivation time constant vs state-of-discharge in the 0-40% state-of-discharge range preclude the selection at low state-of-discharge values.

The Present article has described the dependence of sizing dimension accuracy on the density distribution of sintered compacts and the tensile strength of materials. The determination of entrance angle of both R coining dies and conical coining dies and the approach to eliminating bell shapes during sizing have been outlined.

In this paper an algorithm of finite element modelling is discussed for elastic wave propagating in two dimensional media. Two analytical formulas of the initial motion and wave form of P wave are derived in time domain for a point force source directing vertically down as a function of time with a bell shape. Then the theoretical distribution of initial motion are compared with the results obtained by the finite element algorithm with 16 × 22 node points under similar conditions. The agreement is well....

In this paper an algorithm of finite element modelling is discussed for elastic wave propagating in two dimensional media. Two analytical formulas of the initial motion and wave form of P wave are derived in time domain for a point force source directing vertically down as a function of time with a bell shape. Then the theoretical distribution of initial motion are compared with the results obtained by the finite element algorithm with 16 × 22 node points under similar conditions. The agreement is well. Analysis of various evidences for several cases including the arrival times, the distribution of initial motions, the wave form, and the motion of particles in a Rayleigh wave at the surface indicates that the finite element algorithm used here is more practical and has great potential in calculating real full wave synthetic seis-mogram.

To interprete sedimentary environment, it is necessary to master the threefoundamental elements with marking features: amplitude, shape and assemnlage. Accondng to the analysis and comparison on the petroliferous series inthe Gaoyou Depression, North Jiangsu, the curves' shape and sequence assem-blages of subaqueous alluvial fan, delta, fluvial and deep-water turbidite fan aresummarized as below: 1.Subaqueous alluvial fan: From bottom to top, SP appears to be a se-quence assemblage changed from low-amplitude,...

To interprete sedimentary environment, it is necessary to master the threefoundamental elements with marking features: amplitude, shape and assemnlage. Accondng to the analysis and comparison on the petroliferous series inthe Gaoyou Depression, North Jiangsu, the curves' shape and sequence assem-blages of subaqueous alluvial fan, delta, fluvial and deep-water turbidite fan aresummarized as below: 1.Subaqueous alluvial fan: From bottom to top, SP appears to be a se-quence assemblage changed from low-amplitude, serrated tank shape or positive serrated shape to middle-high amplitude serrated box shape or bell (funnel)shapeto low-amplitude reverse serrated shape; R changes from dense serrated highresistance to serrated high-middle resistance and then disperse serrated middle-lowresistance. 2.Delta: The logs of regressive constructive deltas show that the appearsto be a sequence assemblage changing from smooth line associated with low-middle amplitude funnel shape to funnel, finger or box shapes of middle-highamplitude to box or bell shape of middle-high amplitude,and R is relativelylow. 3.Fluvial: Land-based rivers are developed gradually from braid channelsto meandering channels; SP shows shapes from box with fine sawtooth to bellor separated box to bell assemblage maintained by middle amplitude. R changesfrom serrated middle-high value to middle-lower value. 4.Deep-water turbidite fan: These curves are difficult to be distinguishedfrom that of subaqueous alluvial fan, it is therefore necessary to see about itsoccurrence location.