It mainly introduces Jinzhong electric power supply branch company making use of optical fiber channel to realize interconnection between the lines of company branches,aiming to raise the real-time character,dependability,continuity of data gathering,so as to realize the resources sharing ability and some prospects of its applications.

The charger adopts GMS97C2051 as the programming controller whose inner comparable apparatus works as cell detection with high temperature,constant voltage and current,circuit of voltage detection and basic circuit of voltage resource are composed by an LM324,a TL431 and several branch components.

It mainly introduces Jinzhong electric power supply branch company making use of optical fiber channel to realize interconnection between the lines of company branches,aiming to raise the real-time character,dependability,continuity of data gathering,so as to realize the resources sharing ability and some prospects of its applications.

Second, four practical control methods of adjustable reactors with high voltage and large capacity are studied in the paper while reducing production cost and restraining harmonic waves are taken into account. The first is the compensation technology by injecting current into the multiple branches of the reactor secondary. And the second is a method of controlling current available to a power switch devices with low frequency but large power or high frequency but small power.

Formulating the Z-bus equation and its modifications for large power networks is facilitated by the modification of bus-current sources presented in this paper. All of the networks associated with changes of the topology structures and parameters can be treated adding a group equivalent link branches z eq to the original network.

As an example, the method is applied to calculate the nature frequencies of metal thin rectangular plate with two opposite edges simply supported and the other two edges clamped in transverse magnetic field.

The thesis, based on existing researches, tries to e xplain our research to design complex compactly supported biorthogonal wavelets by real compactly supported biorthogonal wavelets, and then explore the features of the extraction of partial discharge signal based on complex wavelets obtaini ng the general particular feature information from original signal, and finally propose ten novel complex information by combining the results of complex wavele t transform to analyze PD signal.

A practical method using Daubechies compactly supported orthogonal wavelets to derive complex wavelets is proposed. The application of these complex wavelets in short duration power quality disturbance (SDPQD) detection is presented. Integrating phase information of disturbance signals provided by the complex wavelets transform, some new combined information is constructed.

For the Daubechies N wavelet series,it is indicated that the frequency band energy (FBE) of the signal in its own frequency band increases conformably with the increase of the parameter N. The lengthof the compactly supported set increases with the increase of the parameter N. This results in that the calculating time of the wavelet algorithm increases with the length of the set in direct ratio.

针对 Daubechies Ⅳ小波系列，指出了信号所在频带的能量随参数 N 一致递增，但 是紧支集长度增长，从而导致小波算法的执行时间与其长度成正比增加。

A branch-and-price algorithm for solving the cutting strips problem

After giving a suitable model for the cutting strips problem, we present a branch-and-price algorithm for it by combining the column generation technique and the branch-and-bound method with LP relaxations.

The double points may be the double points of either branch, or the intersection points of the two branches.

When the thickness is d >amp;gt; 2 Rg (radius of gyration), the polymer can crystallize into spherulites; when Rg >amp;lt; d >amp;lt; 2 Rg, a dense-branch morphology and dendrites could be found; when d >amp;lt; Rg, an "islands" structure could be obtained.

In addition, considering the non-convex and non-concave nature of the sub-problem of combinational optimization, the branch-and-bound technique was adopted to obtain or approximate a global optimal solution.

In signal processing, communications, and other branches of information technologies, it is often desirable to map the higher-dimensional signals on Sn.

Its basic step is to divide the plane into subdomains that include only simple branches of the algebraic curve without singular points.

Each of the branches is then stably and efficiently traced in the particular subdomain.

The link curve of a spherical four-bar mechanism can be separated into two branches.

The double points may be the double points of either branch, or the intersection points of the two branches.

This fact is deduced from results about equivariantD-modules supported on the nilpotent cone of.

Given integers n,d,e with $1 \leqslant e >amp;lt; \frac{d}{2},$ let $X \subseteq {\Bbb P}^{\binom{d+n}{d}-1}$ denote the locus of degree d hypersurfaces in ${\Bbb P}^n$ which are supported on two hyperplanes with multiplicities d-e and e.

Smoothing Minimally Supported Frequency Wavelets: Part II

The main purpose of this paper is to give a procedure to "mollify" the low-pass filters of a large number of Minimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also low-pass filters for an MRA.

Smoothing minimally supported frequency wavelets: Part II

Notfallm??ige Stent-Implantation in dem Bereich einer ausgedehnten Muskelbrücke des Ramus interventricularis anterior nach posti

Bei einem 64j?hrigen Patienten mit progredienter Angina-pectoris-Symptomatik zeigte die koronare Angiographie eine Muskelbrücke im Ramus interventricularis anterior.

Akuter Myokardinfarkt bei Muskelbrücke des Ramus interventricularis anterior: Komplizierter Verlauf mit Gef??perforation nach St

Eine dringlich durchgeführte koronarangiographische Untersuchung zeigte einen proximalen Verschlu? des Ramus interventricularis anterior (RIVA).

Das Infarktgef?? war in 43% der Ramus interventricularis anterior, in 37% die Arteria coronaria dextra, in 16% die Arteria circumflexa, in 2,3% ein Bypassgef?? und in 1,4% der Hauptstamm der linken Koronararterie.

This paper presents two kinds of small convertor for 48V direct current fluorescent lamp used in passenger train. Each kind contains one silicon transistor, which can light up two commercial fluorescent lamps each of 15W connected in series, can start rapidly without ballast and starter, and can operate with high efficiency and tolerate to appreciable flutuation of voltage up to 25% of normal value. These convertors are designed to be made as easily as possible. Their transformer core is made by ordinary laminated...

This paper presents two kinds of small convertor for 48V direct current fluorescent lamp used in passenger train. Each kind contains one silicon transistor, which can light up two commercial fluorescent lamps each of 15W connected in series, can start rapidly without ballast and starter, and can operate with high efficiency and tolerate to appreciable flutuation of voltage up to 25% of normal value. These convertors are designed to be made as easily as possible. Their transformer core is made by ordinary laminated steel. The rating of transistor is decreased by two means, one of which is preheating the heater of lamp with low voltage source and the other is using the reflector of light as ignitode, so thus the whole convertor is minimized both in size and weight.

An estimate of the radial temperature non-uniformity (gradient) effects on the cryogenic thermometer calibrations is often required in order to make sure of the total uncertainty. A method of determining such effects is presented. For two resistance thermometers of the same type, the necessary condition of zero gradient effects is that the ratio of their resistances remains unchanged throughout the test in spite of the temperature fluctuations of the comparator block; whereas the sufficient condition is that...

An estimate of the radial temperature non-uniformity (gradient) effects on the cryogenic thermometer calibrations is often required in order to make sure of the total uncertainty. A method of determining such effects is presented. For two resistance thermometers of the same type, the necessary condition of zero gradient effects is that the ratio of their resistances remains unchanged throughout the test in spite of the temperature fluctuations of the comparator block; whereas the sufficient condition is that there are no constant synchronous temperature differences between the thermometer sites. The gradient effects can be obtained, therefore, from the deviations of the measured data from these two conditions. An example is given. Discussions are made on the experimental factors.

In this paper, the various states of double-circuit transmission lines with uniform mutual inductance, which are often encountered in clculation of faulted power systems (for example douole-circuit transmission lines with mutual inductance coupling being removed or added simultaneously, one of them being added or removed, both terminals for one of them being connected to the earth under reparation, any point being faulted on any one of the lines, and one of the lines being opened at one of its terminals), are...

In this paper, the various states of double-circuit transmission lines with uniform mutual inductance, which are often encountered in clculation of faulted power systems (for example douole-circuit transmission lines with mutual inductance coupling being removed or added simultaneously, one of them being added or removed, both terminals for one of them being connected to the earth under reparation, any point being faulted on any one of the lines, and one of the lines being opened at one of its terminals), are transformed respectively into an equivatlent circuit without mutually coupled branches. The changes in each state can be transformed into changes of its equivalent circuit parameters and/or a new bus which appears on a branch of its equivalent circuit. The Z'-Bus matrix after these line changes can be found directly from branch impedance data of mutually