The control of step hoist, anti-jamming and following to the fuel pressure by the three control methods are simulated on the simulation platform-Simulink.

The results show that the poly-Si TFT/OLED pair has a low driving voltage,which is not larger than 8 V under 200 A/m~2.The poly-Si TFT current mirror has a perfect following capacity and its saturation voltage is only (1.5-2.5 V) under (0.0-)2.5 μA.

In this paper, the algorithm of the terrain following/terrain avoidance optimal trajectory programming has been improved, threat avoidance has been studied, and hardware-in-the-loop simulation system has been designed for validating the algorithm of trajectory planning and terrain match.

In the paper, we prove the following Veldman's Conjecture: If G is a K—connected graph with n vertices(K≥2)such that, for every k+1 mutually remote edges e_0, e_1,……e_k of G then G is D—Cyclic.

在本文中,我们证明了下述的Veldman猜想:设G是n阶的k-连通图(k≥2),且对任何k+1条相互隔开的边e_0,e_1,…,e_k,都有sum from i=0 to k d(e_i)>1/3(k+1)(n-2)则G是D—Cyclic图。

In this paper we show that in the classical definition of Banach Lie groups the following condition (a) implies condition (b): (a)The mapping a α×β→αβ is smooth.

According to statistics,there were altogether 35 delegations or individuals including 133 foreign experts and scientists from 28 countries who visited the Haicheng earthquake site during the seven years from September 1975 to September 1982.The paper briefly compiles the reflections from worldwide seismological community toward the Haicheng earthquake prediction with the following seven subtitles:1.“My Doubts Dispelled”;

In this paper we consider the approximations of f(x,y)∈Δ_x~r by its square Fourier partial sums S_(n.n) (f;x,y)and obtain the following theorem. Theorem.

The app- lication of this method will at least free the estimation from the following two assumptions:1)the life distributions of products at any stress level are of the same or similar type;

This paper take the actual project application as the research background, including about model establishment, model renewed, and the match algorithm has following research work:(1) The main body of personalization recommendation system is the documents resources and the user resources.

Then he considers the case of algebraic numbers and obtains some results like the following: Every real algebraic number field of finite degree is non-inductive;

Based on the current TQM implementation in Chinese SMEs, this research aims at achieving the following research objectives: (1) To investigate the implementation level of TQM in Chinese SMEs (2)To identify which quality activities are mostly implemented in Chinese SMEs.

In this paper we proved the following results:(1) If R is a kothe semisimple ring and for arbitrary a,b∈R,there exist a positive integer K=K(a,b),a word f_x(x, y) containing x￣2 and n=n(a,b)(≥K)Y's,and a polynomial with integer coefficients such that ab￣k-f_x(a,b)·then R is commutative;

An algebraicG-varietyX is called "wonderful", if the following conditions are satisfied:X is (connected) smooth and complete;X containsr irreducible smoothG-invariant divisors having a non void transversal intersection;G has 2r orbits inX.

We prove the following result: LetG be a finite irreducible linear group.

We prove the following converse: ifG is a reductive group andK[V]G is Cohen-Macaulay for every moduleV, thenG is linearly reductive.

We show the following: if there exists a k-variety which is birational to X and which has a smooth k-rational point, then X also has a k-rational point (Theorem 5.7).

85 (1963), 327-404] for these algebras and construct a maximal Poisson commutative subalgebra in the symmetric algebra, following the theory presented in [A.S.

The gravitational field and the motion of matter in the universe are investigated according to Einstein's field equations and his dynamical equations of motion. In a spatially isotropic and homogeneous space-time continuum it can be shown that up to about 2x10~8 l.y. the following relation holds between spectrum displacement δλ from distant spiral nebulae and their observa-tionally defined distance d,where A is Einstein's cosmological constant. The first term on the right hand side is essentially Hubble...

The gravitational field and the motion of matter in the universe are investigated according to Einstein's field equations and his dynamical equations of motion. In a spatially isotropic and homogeneous space-time continuum it can be shown that up to about 2x10~8 l.y. the following relation holds between spectrum displacement δλ from distant spiral nebulae and their observa-tionally defined distance d,where A is Einstein's cosmological constant. The first term on the right hand side is essentially Hubble and Humason's velocity-distance relation. The second part is a correction which amounts to 11.5% for d2x10~8 l.y. and hence lies within observational error of the present Mt. Wilson 100-inch telescope. The theory shows that both Milne's recent Newtonian theory of the expanding universe and Lemaitre's interpretation of tha velocity-distance are first order approximations and are valid only within 2xl08 l,y. from our galaxy. The calculation for the phenomsna of nebular recession beyond 2xl08 l.y. to be observed by the 200-inch telescope now under construction according to the present scheme will be presented in the near future.

Formulas are derived for the solution of the transient currents of dissipative low-pass T-type electric wave filters. Oscillograms taken by cathode ray oscillograph for d-c. and a-c. cases are found to agree with results calculated from these formulas. From these calculations, the following conclusions are derived. When terminating resistance is gradually increased from O, the damping constants of the sine terms begin to differ from each other, ranging in decreasing magnitude from term of the lowest frequency...

Formulas are derived for the solution of the transient currents of dissipative low-pass T-type electric wave filters. Oscillograms taken by cathode ray oscillograph for d-c. and a-c. cases are found to agree with results calculated from these formulas. From these calculations, the following conclusions are derived. When terminating resistance is gradually increased from O, the damping constants of the sine terms begin to differ from each other, ranging in decreasing magnitude from term of the lowest frequency to the last term of cut-off frequency. Hence the transient is ultimately of the cut-off frequency. At cut-off frequency, this constant is near to but greater than R/2L. For each increase of section, there is introduced an additional sine term with smaller damping constant. Therefore transients die out faster in filters of smaller number of sections. Since transient amplitudes are of the same order of magnitude before and after cut-off, filtering property only exists in the steady states.

Formulas are derived for the solution of the transient currents of resistance-terminated dissipative π-type low-pass, T- and π-type high-pass electric wave filters. Oseillograms taken by cathode ray oscillograph for d-c. and a-c. cases are found to agree with the results calculated from these formulas. From these calculations, the following conclusions are derived: (1) When the terminating resistance is gradually increased from 0, the damping constants of the damped sine terms begin to differ greatly from...

Formulas are derived for the solution of the transient currents of resistance-terminated dissipative π-type low-pass, T- and π-type high-pass electric wave filters. Oseillograms taken by cathode ray oscillograph for d-c. and a-c. cases are found to agree with the results calculated from these formulas. From these calculations, the following conclusions are derived: (1) When the terminating resistance is gradually increased from 0, the damping constants of the damped sine terms begin to differ greatly from each other, ranging in decreasing magnitudes from the first damped sine term to the last term of cut-off frequency. Hence the transient is ultimately of the cut-off frequency. At the cut-off frequency, this constant is greater than the corresponding constant (R/2L) when the termination is absent. (2) For each increase of one section, there is introduced an additional damped sine term with smaller damping constants. Therefore transients die out faster in filters of small no. of sections. (3) With the same network constants, the damping constants of π-type filters are greater than the corresponding values of T-type filters. As a result, transients die out faster in π-type filters. (4) The amplitudes of the transient terms in the attenuation and transmission ranges are of the same order of magnitude, and the filtering property only exists in the steady states. (5) The cut-off frequency of the π-type filters varies with the no. of sections used. When only two sections of low, or, high-pass filter are used, the variation amounts to nearly 26 per cent from the theoretical value.