The maximum load (ML) and bending rigidity coefficient (BRC) depressed ( P < 0.05), while the bending toughness coefficient (BTC) increased ( P <0.01) in H group.

Results: Compared to S rats, elastic ultimate load (EUL), the ultimate load(UL) and bending rigidity coefficient (BRC) of G1 rats ( P <0.05) improved significantly;

As compared with control group, wet weight, dried weight, ash, diameter and density of femur in suspension group were significantly lower( P <0.01), elastic load, maximum load, and bending rigidity coefficient significantly decreased( P <0.01), while maximum deformation and bending toughness coefficient markedly increased( P< 0.01 or P <0.05).

Based on theoritical and experimental research for a number of years, author proposes a new technique for engineering design of reed valve. Some main structure parameters, such as the average Mach number M of valve clearance, the characteristic lift h_0, the stiffness coefficient K_2 and the thickness δ_2 of valve plate have been correctly determined.

The curves describing the relation between stiffness coefficient K, deformation με and characteristic lift ho for various valve plate have been plotted.

And then the methods for engineering design was proposed through the analysis of the results that the displacement, stiffness coefficient, stresses and equivalent motion mass of the damping plate were calculated by means of FEM with different structural parameters.

2. At the same status of the loom, the possibility of appearing weaving defects is relative to the characteristic of the loomage, namely, if the stiffness coefficient of the loomage and organzine has lesser difference, the possibility of appearing weaving defects will be lesser, contrarily will bebiggish.

Analyzing the 5 aspects of thread fastener:under stress,working load,permissible stress,factor of rigidity,factor of pretightening and pretightening force,to provide basis for design of thread fastener of I type flameproof electrical apparatus.

The regression analysis shows that the main influential factors upon the ηb include the MCV, blood sugar (G), hemagglutination index (A 1, A 2), rigid coefficient of red blood cell (Tk), IR and ηp and the main influential factors upon the ηp include the Hb, CHO, blood sedimentation equation value (K) and IR.

The results showed:(1)Whole blood viscosity,whole blood reduced viscosity(at 10,20,60,80,120,200 s -1 ),plasma viscosity,erythrocyte accumulation index,and rigid coefficient of red blood cell of dairy cows suffering from endometritis were higher than that of normal dairy cows (P<0 01) and decreased after being cured by use of the curing recipe (P<0 01) .

The results are summarized in Table 2. For the case of strike-slip fault, they are as follows:(6) The expression for determining regional stress τ0, M0 =where M, magnitude of earthquake; L, W length and width of the fault; tj, seismic efficiency: To, regional shear stress;

It is shown that Anderson localization effects result in the reduction of the rigidity coefficient attached the gradient term in the Ginzburg-Landau functional.

However, the rigidity coefficient remains finite at the mobility edge, where the diffusion coefficient for normal excitations vanishes.

Using the relations obtained and the structure-sensitive parameters, the rigidity coefficient of macromolecules in a block, the thermal conductivity coefficient, the destruction stress, and other characteristics of polymers are determined.

The difference PmMT-PAT is increasing with the level of the intraocular pressure and with the rigidity coefficient.

Chronologic age and the scleral rigidity coefficient were the most significant factors affecting the closeness in readings.

In the present case the reactions of the ocular tension and of the coefficient of rigidity to an experimentally enlarged functional dead - space is investigated, as well as the increase in PaCO2 and the decrease in PaO2.

It affects the coefficient of rigidity of the stress state (Kij) at the crack tip and, thereby, characterizes the embrittling effect of the given crack.

The reduction of the coefficient of rigidity of heat exchanger tube plates during elastoplastic strain

It is shown that the Fermi surface distortion (FSD) reduces the instability-growth rate for surface fluctuations due to its effects on both the viscosity and the increase in the stiffness coefficient.

In a recent paper leit one of the authors noted, without presenting aproof, that appropriate variation of the stiffness coefficient in amass-spring-damper system leads to increase of the system energy during acycle of the motion.

The soleus stiffness coefficient was greater than the gastrocnemius stiffness coefficient by 87.6?m-1 in average.

Nonlinear and linear stability/perturbation analyses at deformed, stressed configurations with a linear stiffness-force relationship for muscles identified the system stability and critical muscle stiffness coefficient.

The resonance peak positions shift towards lower frequencies with increase in temperature as a consequence of the decrease in the stiffness coefficient (C11) of the crystal.

An original "force" model of fracture of solid bodies due to ideally sharp cracks of natural origin with allowance for the factor of "rigidity" of interatomic bonds at the tip of the crack is suggested.

This paper is chiefly composed of two parts. The first part deals with the buckling of the grillages with the same transverse beams. In solving the differential equations of the neutral equilibrium of these grillages, a simplified assumption is made that all the transverses and longitu-dinals have the same modes of buckling Y(y) and X(x) respectively. With this assumption the original problem is converted into that of buckling an equivalent longitudinal beam, attached to an elastic foundation or to some of the...

This paper is chiefly composed of two parts. The first part deals with the buckling of the grillages with the same transverse beams. In solving the differential equations of the neutral equilibrium of these grillages, a simplified assumption is made that all the transverses and longitu-dinals have the same modes of buckling Y(y) and X(x) respectively. With this assumption the original problem is converted into that of buckling an equivalent longitudinal beam, attached to an elastic foundation or to some of the same intermediate elastic supports, and loaded with an equiva-lent axial force, the mode of buckling being X(x). The modulus of the elastic foundation or the elastic supports, as well as the magnitude of the axial force, are related to the natural frequency of an equivalent beam having the natural mode of vibration as Y(y). The calculating formulas derived by the author can be used either for solving exactly the grillages with the same Iongitu-dinals, or for solving approximately those with different longitudinals symmetrically arranged in any form. As for the latter case, the new method possesses the santo degree of accuracy as those previousely used, but it has a wider field of applications snd reduces the labor of calculation drastically. In the second part of the paper, the problem of the buckling of the grillages consisting of both different longitudinals and different transverses has been studied. On the basis of the deduction made in the first part, this problem is converted into that of buckling an equivalent lougitudinal beam attached to some different intermediate elastic supports. For the cases of grillages with only one different transverse or with only one pair of different transverses symmetrically arranged, the solution can be simplified to one formula only. In each part of this paper numerical examples are given with the aim to illustrate the uses of the formulas and to show the amount of calculation labor involved.

This paper deals with the deflection of the Liberty ship resting on keel blocks during drydocking, which is regarded as a continuous beam of variable section and rigidity resting on an elastic foundation. By means of energy method we can adopt deflection curve of the vessel in the form of harmonically vibrating function. Thus the following basic differential equation [EI(x)y"-]" +k(x) y=q(x) may be expressed as linear simultaneous equations where S~(i)_n denotes the function of the moment of inertia, η~(i)_n...

This paper deals with the deflection of the Liberty ship resting on keel blocks during drydocking, which is regarded as a continuous beam of variable section and rigidity resting on an elastic foundation. By means of energy method we can adopt deflection curve of the vessel in the form of harmonically vibrating function. Thus the following basic differential equation [EI(x)y"-]" +k(x) y=q(x) may be expressed as linear simultaneous equations where S~(i)_n denotes the function of the moment of inertia, η~(i)_n denotes the function of the elastic foundation modulus of the keel blocks, Q_i denotes the function of load intensity of the vessel. Some features in ship-repairing have been taken into consideration, the original deflection exists such as before dry-docking and the effect of shear deflection occurs when large shell plates are removed from the side of hull. A simple and approximate formula is derived to evaluate them. Calculations applied to the Liberty ship also illustrate the effects of some technological factors in the process of ship-repairing such as (1) shifting the blocks, (2) removing shell plates at the side of hull, (3) the water test. This paper contains a series of interesting data obtained from the Liberty ship during drydocking, together with theoretical analysis the following conclusions may be drawn. Ⅰ. The results of theoretical calculations differ from those obtained by measurement, the main reason of which is that the calculations neglect the existence of the original deflection of the vessel and the gaps in the wooden structure of keel block. Ⅱ. Among the factors effecting on delection, the shifting of keel blocks has greater effect than the water test and the removal of shell plates has the least. Ⅲ. As required in ship-repairing, any removal of large shell plates at the side of hull should take into account at the same time the effect of shear deflection. Ⅳ. The deflection of the vessel during dry-docking mainly depeds upon the original deflection, the load intensity of the vessel, and the arrangement of the keel blocks. For the Liberty ship it is nsnally found to bend upwards amidships or to hog.

本文把安置在干塢中龙骨墩上修理的自由輪的变形,视为彈性基础上的变断面、变剛性連續梁来計算,应用能量法选择主振动形式函数来表示船身撓曲曲线。这样基本微分方程 [EI(x)y″]″+k(x)y=q(x) 可以用绕性联立方程組来表示: sum from i=1 to n[I_0/L~4S_n~((i))+k_0η_n~((i))]A_n=q_0Q_i式中S_n~((i))、η_n~((i))、Q_i分别表示慣性矩、彈性基础剛性系数和船身重量的分布函数。进而考虑了修船生产的特点,論述了(1)船体修理前的初始撓度;(2)拆落大面积船側外板时剪切变形的影响。也给出了近似計算公式。通过对自由輪的实例計算討論了修理过程中的下列工艺因素:(1)移动龙骨墩;(2)拆落船体外板;(3)装水試驗对船体变形的影响。并作了定性上的分析。本文还統計了一系列自由輪变形測量资料,进行整理并繪成图表。在理論分析和实际测量基础上,可以得到下列主要結論: 1.理論計算值和实际测量值相差較大,其主要原因是計算中沒有考虑墩木的間隙和船身的初始撓曲的影响。 2.在影响塢修变形的諸因素中,以移动龙骨墩的影响最大,装水次之,拆落外板影响較小。 3.在修理过程...

本文把安置在干塢中龙骨墩上修理的自由輪的变形,视为彈性基础上的变断面、变剛性連續梁来計算,应用能量法选择主振动形式函数来表示船身撓曲曲线。这样基本微分方程 [EI(x)y″]″+k(x)y=q(x) 可以用绕性联立方程組来表示: sum from i=1 to n[I_0/L~4S_n~((i))+k_0η_n~((i))]A_n=q_0Q_i式中S_n~((i))、η_n~((i))、Q_i分别表示慣性矩、彈性基础剛性系数和船身重量的分布函数。进而考虑了修船生产的特点,論述了(1)船体修理前的初始撓度;(2)拆落大面积船側外板时剪切变形的影响。也给出了近似計算公式。通过对自由輪的实例計算討論了修理过程中的下列工艺因素:(1)移动龙骨墩;(2)拆落船体外板;(3)装水試驗对船体变形的影响。并作了定性上的分析。本文还統計了一系列自由輪变形測量资料,进行整理并繪成图表。在理論分析和实际测量基础上,可以得到下列主要結論: 1.理論計算值和实际测量值相差較大,其主要原因是計算中沒有考虑墩木的間隙和船身的初始撓曲的影响。 2.在影响塢修变形的諸因素中,以移动龙骨墩的影响最大,装水次之,拆落外板影响較小。 3.在修理过程中,如大面积拆落船侧外板(尤其在1/4L处)时、必須計入剪切对于船体变形的影响。 4.船舶修理过程中的变形,主要是取决于船舶的初始撓曲和船身重量及墩木的分布。以自由輪而言,通常以呈中拱变形较为普遍。

The formulas of strain energy release rate and crack sliding displacement pro-pesed in fracture mechanics have been used in the study of earthquake faulting process. Then, by applying the magnitude-energy relation, logεe=α1M+α2, the relations between the earthquake source parameters and the stress conditions in the crust, for strike-slip, dip-slip and circular disk-shaped shear faults were derived. The results are summarized in Table 2. For the case of strike-slip fault, they are as follows:(6) The expression...

The formulas of strain energy release rate and crack sliding displacement pro-pesed in fracture mechanics have been used in the study of earthquake faulting process. Then, by applying the magnitude-energy relation, logεe=α1M+α2, the relations between the earthquake source parameters and the stress conditions in the crust, for strike-slip, dip-slip and circular disk-shaped shear faults were derived. The results are summarized in Table 2. For the case of strike-slip fault, they are as follows:(6) The expression for determining regional stress τ0, M0 =where M, magnitude of earthquake; L, W length and width of the fault; tj, seismic efficiency: To, regional shear stress; τy, yielding shear strength; fi, rigidity modulus; v, Poisson Ratio; D, average dislocation and M0, the seismic moment.The yielding strength under the stress condition prevailing in the crust, can be measured in the laboratory, therefore, by means of (6) or (1), the regional shear stress can be esyimated from earthquake data. It can be seen that a considerable difference exists between the relations mentioned above and the relations for the earthquake source parameters in current use. It is because, in the latter case, the initial and final stress condition of the fracture are only taken into consideration, whereas in the former case, the fracture process in the light of fracture mechanics has been dealt with.