By deducting effect of cyclic creep, fatigue design curve of 16MnR steel at 420℃ is established, which is complementary to fatigue design curve of JB 4732—95.

Due to existence of "blue brittle" phenomenon, 250℃ and 375℃ can be regarded as critical temperatures of fatigue strength of 16MnR steel, and low-cycle fatigue design curves with temperature that ranged from 250℃ to375℃ and from 375℃ to420℃ are also established.

The design schematic diagram of the system and the principle designing curves of polygonal functions are given, the transfer functions in some relative segments of steam turbine and boiler coordinated control system are deduced,analyzing the system working principles.

The most common fatigue designing curves are provided in this papet. These Sa-Nf curves whose Nt are below 106 include those of the two sorts of carbon steels whose tensile strength are below 552MPa or of ranges from 793 to 896MPa,high intense steels and low alloy steels.

The blade of the turbine is analyzed,the principle and characteristics of the Bezier curve are elaborated,the paper presents a method of using Bezier curve to design turbine blade.

Fatigue analyses are carried out and the results are compared with the only available S-N design curve.

Based on these values a design curve can be constructed to relate the horizontal drain characteristics such as the longitudinal transmissivity of the drain, its thickness and its slope.

An example using the parameters of a specific site conditions along the Arabian Gulf coast is given to present the suggested design curve.

Design curve for fillet welds based on the critical plane model and hot spot stresses is FAT 114 with a slope of 3, see Figure 44.

This design curve mediates the transition between strength and stability.

Several design curves are presented, which are useful for practical antenna design.

The performance of various structures is examined and design curves are provided to ease the work of designer.

Sensitivity analysis and optimum design curves for the minimum cost design of singly and doubly reinforced concrete beams

Optimum design curves have been developed that can be used without prior knowledge of optimization.

A series of design curves for predicting the irreversible demagnetization loss for arc-shaped permanent magnets stabilized in air is presented in the paper.

Gait generation or designing curves in the base space that will produce a desired position change has been extensively studied.

In the present paper general formulas are derived for the resonant frequency, the amplication factor MP, the form coefficient (?), and the input impedance of a composite concentrator horn. On the bases of these general formulas, formulas for computation are given for the step type concentrator with either conical, or exponential, or catenoidal transition section at the step; for the conical concentrator with a cylinder at its small end; and for the catenoidal concentrator with a cylinder at its large end. Values...

In the present paper general formulas are derived for the resonant frequency, the amplication factor MP, the form coefficient (?), and the input impedance of a composite concentrator horn. On the bases of these general formulas, formulas for computation are given for the step type concentrator with either conical, or exponential, or catenoidal transition section at the step; for the conical concentrator with a cylinder at its small end; and for the catenoidal concentrator with a cylinder at its large end. Values of MP and (?) as well as the dependence of the input impedance on kl2 in the neighborhood of the resonant frequency are actually computed for the above mentioned composite concentrators. Design curves are given. Check by experimentation shows that the theoretical values basically agree with the experimental results.

Waveguide-dielectric surface wave cavity is a kind of surface wave cavity, with the speciality of relatively high Q, very suitable for light transmission, very small in dimension and very concentric electromagnetic energy distribution. A theo?etical analysis of field construction and elec-tric and magnetic field energy distributions of various cavity modes are presented. A set of design curves for various modes are given in this paper. It was shown experimentally that if quartz was used as the filling dielectric...

Waveguide-dielectric surface wave cavity is a kind of surface wave cavity, with the speciality of relatively high Q, very suitable for light transmission, very small in dimension and very concentric electromagnetic energy distribution. A theo?etical analysis of field construction and elec-tric and magnetic field energy distributions of various cavity modes are presented. A set of design curves for various modes are given in this paper. It was shown experimentally that if quartz was used as the filling dielectric in the cavity, the Q value could be as high as 2000～6000. A H_(101) mode cavity with Q?2300 was used as a sample cavity in the high frequency small field modulated EPR spectrometer, the sensitivity of the spectrometer was several times higher than before.

In this paper we described and discussed the experimental results of two new types of concrete armor units which were created and studied by us to meet the practical needs of harbor construction and shore protection engineering in our country. One of them, the wing type of armor, is principally applicable to breakwaters, and the other, the frog type of armor, to shore protection engineering. Model exper- iments indicated that the wave-resisting characteristics of both types of armor are superior, their technical...

In this paper we described and discussed the experimental results of two new types of concrete armor units which were created and studied by us to meet the practical needs of harbor construction and shore protection engineering in our country. One of them, the wing type of armor, is principally applicable to breakwaters, and the other, the frog type of armor, to shore protection engineering. Model exper- iments indicated that the wave-resisting characteristics of both types of armor are superior, their technical indices excellent. They can be recommended to be used in practical engineering. In this report we used graphs, tables and formulas to describe and explain the shape, dimensions and characteristic indices of these types of armor units and to calculate wave run-up on sloping structures pro- tected by them. In order to facilitate engineering application, design curves for each of them had also been drawn. Wing type of armor units had already been employedi n the break- water design plan of a certain foreign harbor, which will soon be con- structed through joint effort and mutual cooperation.