1,724,573 research outputs found
SEM morphological study of the Late Triassic clam shrimp Shipingia hebaozhaiensis (Spinicaudata, Crustacea) from Yunnan, southwestern China
No full textLI, GANG (2022): SEM morphological study of the Late Triassic clam shrimp Shipingia hebaozhaiensis (Spinicaudata, Crustacea) from Yunnan, southwestern China. Palaeoentomology 5 (4): 298-304, DOI: 10.11646/palaeoentomology.5.4.2, URL: http://dx.doi.org/10.11646/palaeoentomology.5.4.
Modelling substitution between domestic and outbound tourism in Australia: a system-of-equations approach
No full textThis study uses a system-of-equations approach to model the substitution relationship between Australian domestic and outbound tourism demand. A new price variable based on relative ratios of purchasing power parity index is developed for the substitution analysis. Short-run demand elasticities are calculated based on the estimated error correction almost ideal demand systems. The empirical results reveal significant substitution relationships between Australian domestic tourism and outbound travel to Asia, the UK and the US. This study provides scientific support for necessary policy considerations to promote domestic tourism further.http://www.journals.elsevier.com/tourism-management/http://dx.doi.org/10.1016/j.tourman.2014.03.01
FIGURE 1. A in SEM morphological study of the Late Triassic clam shrimp Shipingia hebaozhaiensis (Spinicaudata, Crustacea) from Yunnan, southwestern China
No full textFIGURE 1. A Norian clam shrimp zonation in North America (after Weems & Lucas, 2015).Published as part of LI, GANG, 2022, SEM morphological study of the Late Triassic clam shrimp Shipingia hebaozhaiensis (Spinicaudata, Crustacea) from Yunnan, southwestern China, pp. 298-304 in Palaeoentomology 5 (4) on page 299, DOI: 10.11646/palaeoentomology.5.4.2, http://zenodo.org/record/733341
FIGURE 1. A in Taxonomy of the clam shrimp Halysestheriidae (Diplostraca: Spinicaudata) from the Upper Cretaceous Nenjiang Formation in central Dayangshu Basin of eastern Inner Mongolia, northeastern China
No full textFIGURE 1. A geological sketch map of the Ganhe area, Oroqen Autonomous Banner, Inner Mongolia to show the fossil locality (after Zhang et al., 2020).Published as part of LI, GANG, 2021, Taxonomy of the clam shrimp Halysestheriidae (Diplostraca: Spinicaudata) from the Upper Cretaceous Nenjiang Formation in central Dayangshu Basin of eastern Inner Mongolia, northeastern China, pp. 156-164 in Palaeoentomology 4 (2) on page 157, DOI: 10.11646/palaeoentomology.4.2.4, http://zenodo.org/record/550775
A well-balanced finite difference WENO scheme for shallow water flow model
No full textIn this paper, we are concerned with shallow water flow model over non-flat bottom topography by high-order schemes. Most of the numerical schemes in the literature are developed from the original mathematical model of the shallow water flow. The novel contribution of this study consists in designing a finite difference weighted essentially non-oscillatory (WENO) scheme based on the alternative formulation of the shallow water flow model, denoted as "pre-balanced'' shallow water equations and introduced in Rogers et al. (2003) [23]. This formulation greatly simplifies the achievement of the well-balancing of the present scheme. Rigorous numerical analysis as well as extensive numerical results all verify that the current scheme preserves the exact conservation property. It is important to note that this resulting scheme also maintains the non-oscillatory property near discontinuities and keeps high-order accuracy for smooth solutions at the same time
Research Progress on the Renewal in Peri-urbanization Areas of the Pearl River Delta
No full textThe renewal in peri-urbanization areas of the Pearl River Delta is the special object of urban renewal and 'three old' transformation research. This paper sorts out the relevant research and differentiates it into three aspects. Firstly, this paper analyzes its overall characteristics and define it qualitatively. It is regarded as the movement to confirm and empower the collective construction land, the institutional change that breaks the government's monopoly of the primary land market, or the 'secondary urbanization' of peri-urbanization areas. Secondly, it studies the research about 'renewal into real estate' and finds that: (1) The defects of property rights and
the internalization of collective management lead to the complex pattern of interests. The balance of interests is the
key to the renewal. The conversion of collective land to state-owned land in practice is an important institutional
breach. (2) The fragmentation of space also restricts the renewal. The key to the integration of renewal is the overall planning of the government, and its effective way is the renewal of the whole village. (3) The renewal may cause the losses of public interest, which are attributed to the pursuit of interests by developers, rent seeking of government, the government controlled by the community of village and society, and the fragmented renewal. Only the roleof government is a positive factor in safeguarding public interests. Thirdly, it focuses on research on 'industrial protection zone' and renewal of 'industry to industry' in recent years. The practice of 'industrial protection zone' is an innovation of policy and planning management, aiming at protecting industrial land. The core of renewal of 'industry to industry' is to break the financial dilemma through institutional innovation and model innovation
Guest editorial: Innovative radar detection, tracking and classification for small UAVs as an emerging class of targets
No full textGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Microwave Sensing, Signals & System
A comparison between bottom-discontinuity numerical treatments in the DG framework
No full textIn this work, using an unified framework consisting in third-order accurate discontinuous Galerkin schemes, we perform a comparison between five different numerical approaches to the free-surface shallow flow simulation on bottom steps. Together with the study of the overall impact that such techniques have on the numerical models we highlight the role that the treatment of bottom discontinuities plays in the preservation of specific asymptotic conditions. In particular, we consider three widespread approaches that perform well if the motionless steady state has to be preserved and two approaches (one previously conceived by the first two authors and one original) which are also promising for the preservation of a moving-water steady state. Several one-dimensional test cases are used to verify the third-order accuracy of the models in simulating an unsteady flow, the behavior of the models for a quiescent flow in the cases of both continuous and discontinuous bottom, and the good resolution properties of the schemes. Moreover, specific test cases are introduced to show the behavior of the different approaches when a bottom step interact with both steady and unsteady moving flows
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