Maturation of cultivated female Japanese eel was induced by implantated androstenedione(ADSD) enveloped silastic bar at 40-day intervals for120 days,with gonado-somatic index (GSI) of (40.

Analysis of in-situ measurement results of tunnel's stress field induced by linear charge explosion

In order to investigate the application of linear chamber blasting in complex environment,firstly,action mechanism of linear charge was analyzed.

Application of hydraulic chamber blasting with bar charge in earth-stone dig;

This article stresses on designing, arrangement of boreholes concentrated charges, bar charges, selection of blasting parameters, tamping and ini- tating circuits.

The paper introduces the experience of appling concentrated charge and bar charge in Zimudang Long Lao Ke cavern blasting and illustrates the problems of concern firing circuit and blasting safe.

This paper mainly introduces the practice of weak throwing room blast with uncoupl-ing strip cartridge in quarry and mine.

With the help of holographic astatic light bomb,the stress distribution of strip cartridge with different cavity ratios as well as its variation law are investigated.

The calculating formulas of the shock wave specific energy and bubble wave specific energy for underwater explosion of the limitless and limited cylindric charge are derived fromthe fluid dynamic theory and equivalent charge amount principle.

The particle velocity of the cylindric charge explosingwas measured by electromagneticparticle velocity testing technology.

Analysis of blast stress field of linear explosive charge based on starfield superprosition method;

Analysis of blast stress field is a basic problem of blasting theory research about linear explosive charge.