Modeling of channel processes in large rivers with the use of field data

The paper deals with mathematical description of channel processes occurring in long sections of large rivers with a complex morphometry. To forecast negative manifestations of channel deformations, a computer model of river sediment transport in the study section is proposed. It is based on a three-dimensional (3D) / two-dimensional horizontal (2DH) flow model, a 2DH model of bed sediment transport and observation data. Comparative analysis of simulation results of channel processes in the Ob river section at the Barnaul water intakes and in situ data makes it possible to evaluate forecast capabilities of the designed model, in particular, for quantitative assessment of changes in channel topography of the study section caused by natural and anthropogenic impacts.

Islamic Ritual

This chapter begins by introducing readers to the five “pillars of Islam” (arkan al-Islam), as well as to other essential aspects of Islamic ritual (section 1). By so doing, it recognizes the enduring power of these rituals, in particular, to provide all Muslims—despite their differences in historical, socio-cultural and political realities—with a shared sense of religious identity. The following section (2) nuances this presentation of Islamic ritual as intrinsically a cohesive force, which necessarily relies heavily on canonical Sunni legal sources and authorities, by exploring five alternative strategies to ritual: Shi’i, esoteric, folk, rationalist, and reformist. Thereafter, it briefly discusses the potential of Islamic ritual in a variety of sources and contexts to both reflect and generate social hierarchies (section 3). It concludes by reflecting on Western scholarly approaches to Islamic ritual and by suggesting future directions for its study (section 4).

The performance of airlift pump for the solid particles lifting during the transportation of gas-liquid-solid three-phase flow: A comprehensive research review

Research about the enhancement of the airlift pump performance by changing the geometry and operational parameters has drawn considerable attention in recent years. This paper presents a comprehensive review of some published research articles on the enhancement performance of the airlift pump and the future direction of the research. In the introductory section, the description, the application, and the performance of the airlift pump are described. The influencing parameters of the airlift pump performance are classified in the geometry and operational. The geometry parameters are including submergence ratio, pipe diameter, pipe length, design, and position of the injector. The operational parameters are including the testing fluid, diameter and density particles, and the superficial velocity of injected air. All of the involved parameters are detail explained in the experimental study section. The detailed derivation of equations of the airlift pump performance and also the modified equation was shown in the theoretical study section. The numerical study of airlift pump operating on two and three phases was also discussed. In the last section, the future directions of the airlift pump are noted, and some conclusions were summarized. It was found that only limited literature about flow patterns in terms of the dynamic interface of each phase and development bubble jet generator airlift pump. Therefore, experimental data are needed to support this effort. Additional work, both theoretical and experimental, needs to be conducted on the effects of type and position bubble jet generators on the flow characteristic and the airlift pump performance, with the hope that the better performance will be obtained.

Basic Concepts and Strategies of Inquiry

Chapter 1 presents the conceptual and methodological tools that are required for this study. Section A examines the prevailing definitions of toleration in order to identify one that is specifically suitable for our subject matter—that is, contested sacred sites. This examination leads us to suggest a novel political definition of toleration. Section B situates our discussion of toleration at contested sacred sites within the framework of political and legal debates over the place of religion in public spaces. Section C proposes the concept of “thick sites” as a tool for encapsulating and investigating the distinct features of contested sacred sites. By using this concept, we aim to clarify the nature of such sites and the reasons for intractable conflicts that are often associated with them. Section D presents our contextual methodology and the rationale for developing a typology of governance models for contested sacred sites.

Unión y separación de palabras en las Osservationi della lingua castigliana de Giovanni Miranda

The amalgamation and separation of Spanish words is an orthographic feature that should be taken into account to characterize an old grammatical text because it contributes to a better understanding of some grammatical and linguistic questions. Regardless of the level of modernization edition of an old grammatical text, the phenomena of amalgamation and separation should be explained, since we believe that it is possible to discover a set of frequent habits in the separation of words and that these can contribute to the immanent grammatical characterization of the text. This article will discuss summarily some problems of phraseologization and de-phraseologization from the fraseological and grammaticographic point of view (section 2), it will approach the subject seen as a mere orthographic problem (section 3), and conclude with some considerations from the perspective of the edition of texts (section 4). The main purpose of this study (section 5) is to explain the preparatory work on which the criteria for the critical edition of a Spanish grammar for Italians of the 16th century can be based.

Carboniferous deposits of northern Sierra de Tecka, central-western Patagonia, Argentina: paleontology, biostratigraphy and correlations

A narrow upper Paleozoic belt crops out in the northern tip of Sierra de Tecka through the Quebrada de Güera-Peña (Patagonia, Argentina). There, black shales of the Pampa de Tepuel Formation contain marine fossil invertebrates previously listed as belonging to the “Levipustula” fauna. Material recently recorded by the authors comprises, in order of abundance, gastropods [Glabrocingulum (Glabrocingulum) poperimense (Maxwell), G. (Stenozone) argentinum (Reed), G. (Stenozone) sp., Peruvispira teckaensis sp. nov., Ananias riccardii Pinilla], bivalves [Nuculopsis (Nuculopsis) patagoniensis González, Phestia tepuelensis González, Streblochondria sueroi González, Streblopteria sp.], conulariids [Paraconularia cf. ugartei Cúneo and Sabattini], brachiopods [Amosia sueroi Simanauskas, Languigneotus laevicaudatum (Amos), Beecheria patagonica Amos], trilobites [Australosutura argentinensis Hahn and Hahn], cephalopods [Pseudoorthoceratidae Flower and Caster, Sueroceras? sp., Mitorthoceras? sp.], and rugose corals [?Lophophyllidiidae Moore and Jeffords]. In addition, the present study includes the new key brachiopods Languigneotus dammanorum gen. et sp. nov. and Tuberculatella waterhousei sp. nov. from younger localities of the Tepuel-Genoa Basin. The Languigneotus laevicaudatum and Languigneotus-Verchojania subzones (late Pennsylvanian) are proposed herein to replace the former Tuberculatella Zone. In addition, previous stratigraphic relationships and correlations of the study section with the Arroyo Pescado (Estancia Ap Iwan) and Esquel areas are discussed. The general stratigraphic profile of a glacial-related section cropping out at Estancia Ap Iwan includes lower conglomeradic beds, which are reinterpreted as early Jurassic in age, and glacimarine levels that are partially equivalent to the Pampa de Tepuel Formation but older than those of Quebrada de Güera-Peña. A correlation of the Esquel Formation with the Arroyo Pescado Formation and other contemporaneous units on the paleopacific margin is assessed, implying that the Esquel Formation should be segregated from the Tepuel Group. The Esquel and Arroyo Pescado formations can be regarded as the basement of the glaciomarine column of the Tepuel-Genoa Basin.

Syntactic and Semantic Analysis of English and Arabic Objects: A Contrastive Study

English and Arabic belong to different language families since they have different grammar and structures .The main purpose of this paper is to show similarities and differences between English and Arabic objects in terms of syntactic and semantic classification. Moreover, the current paper aims at highlighting the divergences and convergences that exist between English and Arabic objects from syntactic and semantic point of view .The paper falls into three sections: section one sheds some light on basic terms that are of relevance to the core of the study. Section two deals with the syntactic and semantic analysis of English objects. Section three deals with the syntactic and semantic analysis of Arabic objects. The main findings that this paper has come up with can be summarized as follows : an object is an entity or participant that undergoes an action done by the performer of the action. Syntactically speaking, an English object can be direct , indirect or complement .Semantically speaking , objects can be affected , recipient, attribute and effected. Syntactically speaking , Arabic objects can be cognate , causative ,or concomitant .Semantically speaking , Arabic objects can come as a receiver , agentive or beneficiary.