Search
Author
- Osman, Ahmed I. (5)
- Daqing, Ma (3)
- Jorgensen, Ed (3)
- Li, Yan (3)
- next >
Subject
- kinh tế (26)
- Economics (12)
- programming (10)
- XRD (10)
- next >
Date issued
- 2020 - 2025 (2128)
- 2010 - 2019 (129)
- 2000 - 2009 (9)
- 1999 - 1999 (1)
Has File(s)
Search Results
We propose a novel method to compute globally injective parameterizations with arbitrary positional constraints on disk topology meshes. Central to this method is the use of a scaffold mesh that reduces the globally injective constraint to a locally flipfree condition. Hence, given an initial parameterized mesh containing flipped triangles and satisfying the positional constraints, we only need to remove the flips of a overall mesh consisting of the parameterized mesh and the scaffold mesh while always meeting positional constraints. To successfully apply this idea, we develop two key techniques. |
This research investigates the impact of R&D and innovation (R&D&I) subsidies on the innovative inputs and outputs of Polish manufacturing companies. We combine unique survey data that incorporates a representative sample of Polish manufacturing companies with data on the state aid from the State Aid Data Sharing System (SUDOP). Our results confirm the positive role of R&D&I subsidies on the likelihood of applying for a patent, filing for intellectual property protection for utility models, industrial designs, trademark registrations, and the introduction of process innovations, consistent with the existing literature. However, the results also indicate an insignificant impact of the intervention on firms’ R&D expenditures and product innovations. |
At the heart of the post-COP26 era and the European Green deal lies the underlying goals in Europe targeting climate neutrality and zero pollution through tourism developments and promotion of economic well-being of regions. This study empirically investigates the dynamic linkages among tourism developments and emission while controlling for the influence of economic growth, trade, energy demand under the framework of Panel Autoregressive Distributed Lag (PARDL) using the top 12 tourist countries in the EU from 1995 to 2018. The findings are as follows: First, the study found that trade openness negatively influences emissions. Second, economic growth, tourism, and energy use positively and significantly influence emissions. Third, energy demand positively and significantly influenc... |
Her Şey Bir Merhaba ile Başlar was developed for intermediate level Turkish language courses at the University of Texas at Austin. Intermediate learners and their instructors may use it for different purposes: self-study, classroom instruction, tutoring, or as a pastime. The lessons in Her Şey Bir Merhaba ile Başlar integrate reading, listening and viewing comprehension, writing and speaking practice, grammar, vocabulary, and cultural activities. Dozens of audio and video clips of Turkish speakers describing their lives, their culture, and their country support and enhance these activities. The Her Şey Bir Merhaba ile Başlar textbook, interactive H5P exercises, and YouTube channel comprise a media-rich open educational resource (OER) developed by Dr. Jeannette Okur at the Universit... |
This paper deals with a limiting case motivated by contact geometry. The limiting case of a tensorial characterization of contact hypersurfaces in Kähler manifolds leads to Hopf hypersurfaces whose maximal complex subbundle of the tangent bundle is integrable. It is known that in non-flat complex space forms and in complex quadrics such real hypersurfaces do not exist, but the existence problem in other irreducible Kähler manifolds is open. In this paper we construct explicitly a one-parameter family of homogeneous Hopf hypersurfaces, whose maximal complex subbundle of the tangent bundle is integrable, in a Hermitian symmetric space of non-compact type and rank two. |
This paper assesses capital mobility for a panel of 15 European countries for the period 1970–2019 using dynamic common correlated effects modeling as proposed in Chudik and Pesaran (J Econ 188(2):393–420, 2015). In particular, we account for the existence of cross section dependence, slope heterogeneity, nonstationarity and endogeneity in a multifactor error correction model (ECM) that includes one homogeneous break. The analysis also identifies the heterogeneous structural breaks affecting the relationship for each of the individual countries. |
This paper concerns the persistence of kink and periodic waves to singularly perturbed two-component Drinfel’d-Sokolov-Wilson system. Geometric singular perturbation theory is first employed to reduce the high-dimensional system to the perturbed planar system. By perturbation analysis and Abelian integrals theory, we then are able to find the sufficient conditions about the wave speed to guarantee the existence of heteroclinic orbit and periodic orbits, which indicates the existence of kink and periodic waves. Furthermore, we also show that the limit wave speed c0(k) is increasing. |
General Enterprise Architecting (GEA) is an enterprise architecture method which has emerged out of a need in practice, and has been developed and matured over the past 15 years. The GEA method differs from other enterprise architecture approaches in that it has a strong focus on enterprise coherence and the explicit governance thereof. This focus followed from the observed need to move beyond the Business-IT alignment and ‘Business-to-IT’ stack thinking that is embodied in most of the existing enterprise architecture approaches. The main objective of this paper is to report, and reflect on, the development of the GEA method (so-far), which involved a co-evolution between theory and practice. |
The existing empirical literature on export promotion policies is almost exclusively focused on their effects for domestic exporters. This paper contributes to this research by empirically examining the effects of export incentives for third-country exports. Using novel CEPR Global Trade Alert data, the study investigates the impact of Brazilian, Indian and Chinese export incentives on exports of OECD and emerging countries. The findings confirm the existence of negative third-country effects of export incentives and demonstrate that these effects are expectedly larger for foreign exporters who exhibit higher similarity in geography of export with subsidized exporters. |
The facciata double meaning as façade and outer appearance embodies the Italian city-state’s political, cultural, and social values that Leon Battista Alberti outlined in his famed De re aedificatoria libri decem (1485). This concept lies at the heart of Florence’s urban fabric: one of the early cradles of Renaissance architecture that originated from the artistic expenditure of prosperous families including, the Medici, Strozzi, and Rucellai. In this context, the Palazzo Rucellai (c.1446-66) marks an important historical moment in history as its façade, with its three superimposed orders and well-proportioned urban composition, was the first of its kind in Renaissance Florence. |
