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Quartz调度器与Web程序整合的研究和应用

Quartz是一个开源的作业调度框架,它完全由Java写成,运用于J2SE和J2EE  (本文共3页) 阅读全文>>

《International Journal of Minerals Metallurgy and Materials》2019年03期
International Journal of Minerals Metallurgy and Materials

Applications of two electric arc plasma torches for the beneficiation of natural quartz

Experimental beneficiation processes of quartz concentrate in arc plasma torches of two different types and electric powers were studied. An emission scanning electron microscope and a universal laser analyzer were used to investigate the structures as well as the size distributions of grains and microparticles. Inductively coupled plasma–mass spectrometry was used to determine the chemical compositions of nonstructu...  (本文共7页) 阅读全文>>

《International Journal of Mining Science and Technology》2018年02期
International Journal of Mining Science and Technology

Triboelectric properties of ilmenite and quartz minerals and investigation of triboelectric separation of ilmenite ore

Triboelectric separation, as an entirely dry technology, is a prospective method to process fine minerals.The aim of this paper is to investigate the performance of triboelectric separation of ilmenite and quartz minerals in a lab unit and to get ready for the separation of ilmenite ore. A tribocharge measurement system was used to test the triboelectric properties of ilmenite and quartz particles with tribochargers ...  (本文共8页) 阅读全文>>

《地学前缘》2009年S1期
地学前缘

Characteristic Analysis of a Powder Quartz Mine in Yunnan Province

The characteristic study of powder quartz is the basis of the comprehensive utilization of quartz powder resources.In this paper,the characteristic of a powder quartz mine in Yunnan Province is analyzed, through the analysis ...  (本文共1页) 阅读全文>>

《Progress in Natural Science》2006年10期
Progress in Natural Science

A new way of transformation from a-quartz to coesite

A laboratory method combining the high-energy mechanical ball milling and high static pressure has been suggested for modelling synthesis of coesite in the Earth's crust. A window of milling time, a mechanical collision-induced intermediate phase ofα-quartz and its condition of easily crystallizing into coesite under the conditi...  (本文共8页) 阅读全文>>

《Chinese Science Bulletin》2005年05期
Chinese Science Bulletin

An experiment study of quartz-coesite transition at differential stress

In order to study quartz-coesite transition under the conditions of differential stress, experiments of quartzite deformation were carried out using a triaxial testing system with a Griggs type solid medium pressure vessel. Analyses on the plastically-deformed samples under optical microscope and Raman spectra show that fine-grained coe-site was present in the region of samples adjacent to the pistons at...  (本文共6页) 阅读全文>>