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Arbitrary constraints might be included into the problem domain in many engineering applications, which represent specific features such as multi-domain interfaces, cracks with small yield stresses, stiffeners attached on the plate for reinforcement and so on. To imprint these constraints into the final mesh, additional techniques need to be developed to treat these constraints properly.

This paper proposes an automatic approach to generate quadrilateral meshes for the geometric models with complex feature constraints. Firstly, the region is decomposed into sub-regions by the constraints, and then the quadrilateral mesh is generated in each sub-region that satisfies the constraints. A method that deals with constraint lines and points is presented. A distribution function is proposed to represent the distribution of mesh size over the region by using the Laplace equation. The density lines and points can be specified inside the region and reasonable mesh size distribution can be obtained by solving the Laplace equation.

An automatic method to define sub-regions is presented, and the user interaction can be avoided. An algorithm for constructing loops from constraint lines is proposed, which can deal with the randomly distributed constraint lines in a general way. A method is developed to deal with constraint points and quality elements can be generated around constraint points. A function defining the distribution of mesh size is put forward. The examples of constrained quadrilateral mesh generation in actual engineering analysis are presented to show the performance of the approach.

An automatic approach to constrained quadrilateral mesh generation is presented in this paper. It can generate required quality meshes for special applications with complex internal feature constraints.

Recent works on the structural transformation of developing countries usually include only a few countries because of the availability of data. Beyond the resulting lack of representativeness, these works also hit a strong disparity between the labour reallocation patterns of sub-regions. This paper devoted to sub-Saharan Africa, evaluates the performance of sub-Saharan Africa, as a whole, in structural transformation using a more exhaustive database and highlights key disparities that exist between the performances of sub-Saharan African sub-regions.

With a database covering 43 sub-Saharan African countries classified into 4 sub-regions, the paper uses the shift-share method over the period 1991–2012 with sub-periods of 1991–2000 and 2000–2012.

Results show that labour reallocation in sub-Saharan Africa occurred, though weakly, towards more productive activities over the period 1991–2012. Results also show a significant disparity between sub-regions' labour reallocation pattern. While East Africa has experienced a labour reallocation towards more productive activities, West Africa has seen a labour reallocation towards activities experiencing an increase in productivity. Central Africa and Southern Africa experienced a labour reallocation towards less productive activities, and these activities know, moreover, a decrease of productivity.

Findings suggest that any political strategy purposing to coordinate structural transformation in sub-Saharan Africa will result in a failure if countries' peculiarities are not taken into account.

This paper offers a representative picture of sub-Saharan Africa's structural transformation and illustrates disparities between its sub-regions' performances.

A new method of designing electromagnetic devices is presented in this paper. As a result of applying a very effective algorithm for non‐linear minimax optimization, a flexible method for Computer Aided Design (CAD) of electromagnetic devices has been obtained. The algorithm is based on successive linear approximation of the functions defining the problem. In each iteration step those functions are computed with the aid of the Finite Element Method (FEM). The resulting linear sub‐problems are solved in the minimax sense subject to the linear equality and inequality constraints. The application of the new method for the design of two different examples are presented. The first example is a classical case of shape designing with the aid of the independent nodes movement (INM) method. In the second example the applied equality constraints added to INM have reduced the problem to the optimal location. In both cases the method proved its flexibility and usefulness in CAD.

This paper aims to seek to find answers to three questions. First, is there any possibility of long-term cointegration between East and Southeast Asian equity markets? If so, how many cointegrating equations are there? Second, what are the short-term causal relationships between equity markets in East and Southeast Asia? Third, what is the East Asia’s most influential equity market toward their Southeast counterparts, and vice versa?

This study uses Johansen's (1988) cointegration method to test long-run relationships among East and Southeast Asian equity markets. With regards to short-run causal relationships, this study uses Granger-causality test as well as the forecast variance decomposition method.

Johansen test proves that there is cointegration between East and Southeast Asian equity markets, but the integration process is not complete. Cointegrating vector also provides evidence that member countries of ASEAN+3 respond differently to external shocks. With regards to short-run causal direction, this study finds that Japan Granger-causes all equity markets in Southeast Asia, while Singapore and Vietnam Granger-cause all equity markets in East Asia. These results imply that Japan is the market with most linkages in Southeast Asia, while Singapore and Vietnam are the markets with most linkages to East Asia. Furthermore, forecast variance decomposition reveals that Japan is the East Asia’s most influential equity markets, while Singapore is the most influential equity market in Southeast Asia. This study suggests that policymakers in East and Southeast Asian countries to synchronize the capital market standards and regulations as well as to reduce the barriers for capital mobility to spur the regional equity market integration.

Increasing integration of East and Southeast Asian capital markets forces policymakers in ASEAN+3 countries to synchronize monetary policies, as it has been found that regionally integrated capital markets reduce the degree of independent monetary policy (Logue et al., 1976). It is therefore important for policymakers in East and Southeast Asian countries to assess the possibility of stock market integration within this region to anticipate the future risks associated with economic integration as well as to build collective regional institutions (Wang, 2004). Click and Plummer (2005) also argued that integrated stock markets is more efficient than nationally segmented equity markets, and the efficiency of Asian capital markets has been questioned in particular after the 1997 Asian financial crises. Yet, the empirical evidence on the extent of financial integration among ASEAN+3 member countries has been limited and inconclusive. This study is therefore an attempt to investigate the recent development of ASEAN+3 equity markets integration.

This study focuses its attention on the existence and the extent of financial integration in East and Southeast Asia region, and it provides evidence that equity market integration in ASEAN+3 is far from complete, and for that reason, there is a need for policymakers in ASEAN+3 member countries to synchronize their standards and regulations. Furthermore, the policymakers in East and Southeast Asia can gain benefit from this study, as it provides the evidence that ASEAN+3 member countries respond differently to policy shocks, which may hinder the development of regional financial integration as well as the policy effectiveness of region-wide authority in ASEAN+3.

This research is different from previous studies, as it puts the regional financial integration within the context of ASEAN+3 frameworks. Unlike previous research that considers East and Southeast Asian countries as an individual entity, this research considers East and Southeast Asia into two different blocks, following Tourk (2004) who documented that negotiation process for ASEAN+3 financial integration is conducted in sub-regional level (ASEAN vs East Asia), rather than national level (country per country basis). Second, this study covers the period after the 1997 Asian financial crisis. As suggested in Wang (2014), that the degree of stock market integration tends to change around the periods marked by financial crises, the updated study on Asian financial integration in the aftermath of 1997 financial crises is important to document the development of regional financial integration.

Many engineering and scientific problems require the filling of a two‐dimensional region with scan lines of finite width. The number of contiguous scan line segments required for the filling depends on the direction used for scanning. When the cost of the filling operation increases with the number of scan line segments, as is the case in numerically controlled machining, layered fabrication and computer graphics applications, then it is desirable to select a direction that minimizes this number. In this paper we provide a method for efficiently computing such an optimal direction when the region to be filled is bounded by straight‐line segments and/or circular arcs.

Taking into account the long‐term influences of the non‐linear behavior of the material as well as the large deformation and contact conditions, the limiting factors of the computer simulation are the computer runtime and the memory requirement during solution of seismic response analysis for immersed tunnel. This research aims to overcome these problems.

This research deals with parallel explicit finite element simulation with domain decomposition for seismic response analysis of immersed tunnel, which is the non‐linear and time‐dependent behavior of complex structures in engineering. A domain decomposition method based on parallel contact algorithm and dynamic‐explicit time integration procedure are used, and the latter is used for the solution of the semi‐discrete equations of motion, which is very suited for parallel processing. Using the high performance computer SGI Onyx3800, the seismic response analysis of the immersed tunnel in Shanghai is processed with more than 1.2 million nodes and more than 1 million elements in final finite element model.

The results show numerical scalability of this algorithm and reveal the dangerous joints in this immersed tunnel under Tangshan seismic acceleration, and it could also provide references for the antiseismic design of the immersed tunnel.

With the increasing demands in the scale, accuracy and speed of numerical simulation in geotechnical engineering, parallel computing has its great application in this area. This paper fulfils an identified method need, and it is believed more and more research work will be devoted to this research field in the near future.

This paper presents a boundary element method (BEM) based on a subdomain approach for the solution of non‐Newtonian fluid flow problems which include thermal effects and viscous dissipation. The volume integral arising from non‐linear terms is converted into equivalent boundary integrals by the multi‐domain dual reciprocity method (MD‐DRM) in each subdomain. Augmented thin plate splines interpolation functions are used for the approximation of field variables. The iterative numerical formulation is achieved by viewing the material as divided into small elements and on each of them the integral representation formulae for the velocity and temperature are applied and discretised using linear boundary elements. The final system of non‐linear algebraic equations is solved by a modified Newton's method. The numerical examples include non‐Newtonian problems with viscous dissipation, temperature‐dependent viscosity and natural convection due to bouyancy forces.

This paper aims to present the dynamics of housing prices in Italian cities based on unpublished data with regional details from the late 1960s, half-yearly base, for all main Italian cities measuring the average prices for three city dimensions: city centre, sub-centres and outskirts or suburbs. It estimates the Italian long-term house price index, city based in real terms, and shows a combination of methods to deal with large time-series data.

This paper builds long-term cycles based on the city (real) data by estimating the common components of cointegrated time series and extracting the unobservable signals to build real house price index for sub-regions in Italy. Three different econometric methodologies are used: Johansen cointegration test and VAR models to identify the long-term pattern of prices at the estimated aggregate level; principal components to obtain the common (permanent and transitory) components; and signal extraction in ARIMA time series–model-based approach method to extract the unobserved time signals.

Results show three long-term cycle-trends during the period and identify several one-direction causal non-permanent relationships among house prices from different Italian areas. There is no evidence of convergence among regional’s house prices suggesting that the Italian housing prices converge inside the local market with only short diffusion effects at larger regional level.

Data are measured as the average price in squared meters, and the resulting index is not quality controlled.

The long-term trends on housing prices serve to implement further research and know deeply the evolution of Italian housing prices.

This paper contains new and unknown information about the evolution of housing prices in Italian regions and cities.

We examine how the degree of regional financial integration in African stock markets has evolved over the last eleven years. Despite increasing regional economic cooperation, the process of stock market integration has been slow. To facilitate growth via developed financial markets but keep financial stability risk at a minimum, further regional integration should be promoted, and mild capital controls on non-African investors may be necessary. A Diebold-Yilmaz spillover analysis is applied to ten African stock markets for the period between August 2004 and January 2015. We examine spillovers among four regions and among individual countries. Regional integration, as measured by total spillovers in Africa, is increasing but remains very low. These spillovers were temporarily heightened during the global financial crisis. Cross-regional spillovers are high between Northern and Southern Africa. Asymmetric capital controls on African and non-African investors must be considered to foster further regional integration and to mitigate financial stability risk. This is one of the few studies to address the construction of the future architecture of regionally integrated stock markets in emerging countries.

The purpose of this paper is to decompose inequality in Sri Lanka by population subgroups and income sources.

The study is based on the latest Sri Lankan Household Income and Expenditure Survey. The study firstly sketches an inequality profile for Sri Lanka and then investigates the principle components of inequality by applying several decomposition techniques. Essentially a decomposable class of inequality measures were computed by considering households characteristics such as geographic location/sector, gender, education and type of employment. Inequality within and between population subgroups/sectors in the distribution of expenditure was done by employing the Theil's entropy index, mean logarithmic deviation, and the half the squared coefficient of variation. Concentration curves and indices were utilized to decompose inequality by expenditure components.

The empirical findings are broadly encouraging. Decomposition analysis results reveal that in all groups used, the between‐group inequality accounts only for a very small part of the overall inequality. Thus, reducing inequality between the household groups would have only limited effect on reducing the overall inequality. Results confirm the fact that inequality in Sri Lanka was driven by relatively higher levels of expenditure inequalities of those at the top of the expenditure distribution. Decomposition estimates of the Gini index by expenditure sources via Rao's method revealed that the distribution of non‐food expenditure was more asymmetric as compared to food expenditure. Findings in general point to the wisdom of considering the redistribution of economic resources within‐sectors and sub‐groups rather than between‐sectors and sub‐groups if the intention is to cost effectively reduce overall inequalities in Sri Lanka. However, in practice an optimal‐mix of within and between‐group policies would be required in addressing overall inequality.

This is the first study that analyzes the latest Sri Lankan Household Income and Expenditure Survey to decompose inequality by population subgroups and income sources.