When concentration of baicalin was between 5～15 μg·ml -1 ,the linear relation is good ( r = 0.9994 ),average recovery rate was 101.5% ( n = 5,RSD 1.1% ).

RESULTS When concentration of berberine hydrochloride was between 2～10 μg·ml -1 ,the linear relation was good( r = 0.9996 ),average recovery rate was 100.5% ( n =5,RSD 1.65% ).

The results shown that a linear relationship of ΔE against C(Al~(3+)) is good (r=0.999?8) and the linear range is 0～5 μg/mL for Al when the concentration of NaF is about 6 μg/mL.

Results Within the range of 0.8～2.4 μg of ephedrin,the linearity of this method was good(r=0.999 7). The average recovery of the different processed products was 97.22% with RSD of 1.72%.

This method showed that recovery was high(in the range of 937%～987%), and correlation coefficient was good (in the range of 09995～09998),and selection of derivation reagents was satisactory.

The postoperative results were evaluated according to Sanders Score System. Results Of the 78 cases, 28 were excellent (35.9%), 38 good (48.7%),11 fair (14.1%) and 1 failure(1.3%).

The hip functions were evaluated by Harris score: 12 hips reached excellent results(>90 scores), 23 hips good (80 to 90 scores), 3 hips fair (70 to 79 scores), and no poor (<70 scores).

Results The degree of difficulty reached the idealvalues (the value for city being 0.62, 0.58 for rural area); the different degree was very good (rpb > 0.195, P < 0.05),80% of the testing questions had a distinguishing index D > 0.2, the reliability was very high(correlation coefficientrtt= 0.91), and the validity was ideal.

This method showed that recovery was high(in the range of 937%～987%), and correlation coefficient was good (in the range of 09995～09998),and selection of derivation reagents was satisactory.

Open subsets of projective spaces with a good quotient by an action of a reductive group

The aim of the paper is to describe all open subsets of a projective space with an action of a reductive group which admits a good quotient.

As in the case of Mumford's geometric invariant theory (which concerns projective good quotients) the problem can be reduced to the case of an action of a torus.

We also show how to distinguish examples of open subsets with a good quotient coming from Mumford's theory and give examples of open subsets with non-quasi-projective quotients.

Finiteness of the number of maximal open subsets with good quotients

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle...

This paper presents an investigation of the"Automatic Operator" of Diesel Loco-motive based on the principle of compound programming control. According to the sur-rounding conditions of locomotive, the"Automatic Operator"can change its structure automatically in order to obtain better quality of control.In this paper, the principle scheme, the characteristics of"Automatic Operator" and the experimental results of automatic control of Diesel locomotive with "Automatic Operator"are presented, the principle and the design of logical circuit for changing the characteristics of"Automatic Operator"is emphasized. The latter part of the paper in-cludes a discussion of quality of control; and finally, formulas for determining the para-meters of the control system are derived.

A new method of generating electric pulses of short duration with good amplitude and steadiness is devised by superposing two similar and opposite pulses produced with two glow discharge tubes. Confirming experiments are made and fully reported. A useful formula for passing a pulse through a transformer is also derived.

By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of the...

By surrounding a photo-neutron source of Ra+Ee with a thin spherical sbell of paraffin, a continuous spectrum of scattered neutrons, extending from zero energy to the energies of the primary neutrons is obtained. When a silver detector is exposed to such a spectrum, a part of the neutrons having just the energies at resonance with the silver nuclei is strongly absorbed by the detector and thereby produces the induced β-activity. By measuring the activity of silver and the apparent absorption coefficient of the resonance neutrons in a thin silver absorber, the total width of the resonance levels effective to neutron capture and located in the above spectrum is estimated. Let τ He the average value of one half of the half-value width of the resonance levels, expressed in volts, and n be the number of resonance levels here concerned. We find nτ=260 volts for the silver nuclei of half period 22" if the energies of the primary neutrons are taken to be 2x 105 volts. Knowing nτ, we can evaluate the average spacing between adjacent resonance levels effective to neutron capture by giving a plausible value to τ. We find a spacing of the order 80-800 volts if τ be given the value 0.1-1.0 volt. This result is in good accord with the recent theoretical calculation of Bethe and also with observations of resonance groups in the low energy region.