منابع مشابه
Study on Preparation of High-strength Gypsum by FGD Gypsum
With the enlarging of industrial desulfurization, the amount of FGD gypsum is increasing rapidly. The preparation of alpha-calcium sulfate hemihydrate (α-HH) is one of the biggest concerns for FGD gypsum reclamation. The influence of mixed chlorate solution of Mg-Ca-Na concentrations (5-30 wt%) and FGD gypsum concentrations(5-30 wt%) by hydrothermal salt solution method at atmospheric were inve...
متن کاملk-Efficient partitions of graphs
A set $S = {u_1,u_2, ldots, u_t}$ of vertices of $G$ is an efficientdominating set if every vertex of $G$ is dominated exactly once by thevertices of $S$. Letting $U_i$ denote the set of vertices dominated by $u_i$%, we note that ${U_1, U_2, ldots U_t}$ is a partition of the vertex setof $G$ and that each $U_i$ contains the vertex $u_i$ and all the vertices atdistance~1 from it in $G$. In this ...
متن کاملMinerva Rooms
Each of the Minerva houses has a seminar room that is equipped with a limited amount of technology. In keeping with the President's initiative to build a close relationship between academic and student life, the rooms are available to both students and faculty to use. each room contains a motorized projection screen, a ceiling-mounted data projector, and a DVD/VCR combo unit. A panel in the roo...
متن کاملCarbonate and Gypsum
Inorganic carbonate in soil occurs predominantly as the sparingly soluble alkaline-earth carbonates, calcite (CaCOs) and dolomite (CaMg(CO,),). Calcite is usually the dominant form in active pedogenic environments (Doner & Lynn, 1977; Nelson, 1982). There are only a few reported occurrences of aragonite (CaCOs) and vaterite (CaCOs) in soils. Sodium carbonate and magnesium carbonate and hydroxyc...
متن کاملLocalizing Sound in Rooms
Department of Cognitive and Neural Systems and Biomedical Engineering Boston University, 677 Beacon St., Boston, MA 02215 Email: [email protected] Ph: 617-353-5764 FAX: 617-353-7755 INTRODUCTION Relatively little psychoacoustic work has examined how realistic echoes and reverberation affect spatial auditory perception. Within psychoacoustics, echoes and reverberation are generally thought to 1) ...
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ژورنال
عنوان ژورنال: MATEC Web of Conferences
سال: 2018
ISSN: 2261-236X
DOI: 10.1051/matecconf/201817401005