Among the issues that preoccupied ancient and modern grammarians is the phenomenon of grammatical disagreement among grammarians and their differences in many grammatical issues that many of them go back to the phenomenon of dialectical difference, so this filled our thinking with a lot of things that led us to look at the side of the reasons for this grammatical difference, and here lies the significance of research to know that it is a linguistic phenomenon dealing with the living language used among the Arabs and linguistic phenomena that reflect linguistic reality as well. Thus our chagrin determination in research and investigation in this issue is the scarcity of dialectical studies at the compositional grammar side, and the lack of a competent study on grammatical disagreement which are taken dialects as the main instrument and main reason in the field of study. In addition, lack of a research to talk about multifaceted grammatical rules; the multiplicity of cases of syntax, or to the different syntactic positions, hence the significance of our research is to indicate the reason for multifaceted grammatical rules, which is the dialectical difference. Therefore, the research is to study this problem explaining the main reasons behind the grammatical disagreement and its impact on the multiplicity of grammatical rules, namely the dialectical differences. Thus, the research is divided into three sections: the first section is devoted to the research terms, the second one is devoted to the definition of dialectical difference and to know the its causes and consequences, the third and the last one is about dialectical difference issues that have had an impact on the multiplicity of grammatical rules that reached twenty-one issues.
Key words: Multiple, object, provisions, disagreement, discord, grammatical
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A tungsten inert gas (TIG) welding is one of the most popular kinds of welding used to join metals mainly for aluminum alloys. However, many challenges may be met with this kind of joining process; these challenges arise from decay of mechanical properties of welded materials. In the present study, an attempt was made to enhancing the mechanical properties of TIG weld joint of 6061-T6 aluminum alloy by hardening the surfaces using shoot peening technique. To optimize the shoot peening process three times of exposure (5, 10, and 15) min. was used. All peened and unpeened, and welded and unwelded samples were characterized by metallographic test to indicate the phase transformation and modification in microstructure occurring d
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Coal fines are highly prone to be generated in all stages of Coal Seam Gas (CSG) production and development. These detached fines tend to aggregate, contributing to pore throat blockage and permeability reduction. Thus, this work explores the dispersion stability of coal fines in CSG reservoirs and proposes a new additive to be used in the formulation of the hydraulic fracturing fluid to keep the fines dispersed in the fluid. In this work, bituminous coal fines were tested in various suspensions in order to study their dispersion stability. The aggregation behavior of coal fines (dispersed phase) was analyzed in different dispersion mediums, including deionized-water, low and high sodium chloride solutions. Furthermore, the effect of Sodium
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