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Silver‐glass die attach materials represent a significant advance in silicon packaging technology and are expected to displace gold‐silicon eutectic bonding as the preferred method of die attachment for high reliability applications. In this paper the rle of the glass in the adhesion mechanism of silver‐glass to gold and chromium/gold backed die has been determined using thermal analysis and X‐ray diffraction in addition to scanning electron microscopy and electron probe microanalysis of the sintered film. An adhesion mechanism is proposed in which the glass of the silver‐glass system migrates to the die interface during the firing cycle and chemically bonds to the silicon which is present at the surface of the gold‐silicon eutectic. Adhesion between the die back and the silver of the die attach material is by means of a simple mechanical bond between ‘fingers’ of glass and the sintered silver matrix. Thermodynamic and kinetic considerations suggest that insufficient silicon dioxide may be formed using chromium/gold backed die for acceptable adhesion. Processing changes are proposed which resolve this adhesion problem.

The purpose of this paper is to present a new particle swarm optimization (PSO) algorithm called HelixPSO for finding ribonucleic acid (RNA) secondary structures that have a low energy and are similar to the native structure.

Two variants of HelixPSO are described and compared to the recent algorithms Rna‐Predict, SARNA‐Predict, SetPSO and RNAfold. Furthermore, a parallel version of the HelixPSO is proposed.

For a set of standard RNA test sequences it is shown experimentally that HelixPSO obtains a better average sensitivity than SARNA‐Predict and SetPSO and is as good as RNA‐Predict and RNAfold. When best values for different measures (e.g. number of correctly predicted base pairs, false positives and sensitivity) over several runs are compared, HelixPSO performs better than RNAfold, similar to RNA‐Predict, and is outperformed by SARNA‐Predict. It is shown that HelixPSO complements RNA‐Predict and SARNA‐Predict well since the algorithms show often very different behavior on the same sequence. For the parallel version of HelixPSO it is shown that good speedup values can be obtained for small to medium size PC clusters.

The new PSO algorithm HelixPSO for finding RNA secondary structures uses different algorithmic ideas than the other existing PSO algorithm SetPSO. HelixPSO uses thermodynamic information as well as the centroid as a reference structure and is based on a multiple swarm approach.

Unter intelligentem Tourismus soll hier ein Tourismus verstanden werden, der möglichst wenig negative Wirkungen auf die Umwelt (vor allem die Landschaft, aber auch Wasser, Luft usw.), die Wirtschaft und die Gesellschaft hat. Im folgenden soll primär auf die Umweltwirkungen des Tourismus eingegangen werden, während seine Wirkungen auf die Wirtschaft und Gesellschaft vernachlässigt werden.

In the context of the European city, the regeneration of former industrial sites is a unique opportunity to actively steer urban development. These plots of land gain strategic importance in actively triggering development on the city scale. Ideally, these interventions radiate beyond the individual site and contribute to the strengthening of the location as a whole. International competition between locations is rising and prosperous development a precondition for wealth and wellbeing. This approach to the regeneration of inner city plots makes high demands on all those involved. Our framework suggests a stronger focus of the conceptualization and analysis of idiosyncratic resources, to enable innovative approaches in planning. On the one hand, we are discussing spatially restrained urban plots, which have the capacity and need to be reset. On the other hand, each plot is a knot in the web of relations on a multiplicity of scales. The material city is nested into a set of interrelated scale levels – the plot, the quarter, the city, the region, potentially even the polycentric megacity region. The immaterial relations however span a multicity of scale levels. The challenge is to combine these two perspectives for their mutual benefit. The underlying processes are constitutive to urban space diversity, as urban form shapes urban life and vice versa.

The humans are gifted with the potential of recognizing others by their uniqueness, in addition with more other demographic characteristics such as ethnicity (or race), gender and age, respectively. Over the decades, a vast count of researchers had undergone in the field of psychological, biological and cognitive sciences to explore how the human brain characterizes, perceives and memorizes faces. Moreover, certain computational advancements have been developed to accomplish several insights into this issue.

This paper intends to propose a new race detection model using face shape features. The proposed model includes two key phases, namely. (a) feature extraction (b) detection. The feature extraction is the initial stage, where the face color and shape based features get mined. Specifically, maximally stable extremal regions (MSER) and speeded-up robust transform (SURF) are extracted under shape features and dense color feature are extracted as color feature. Since, the extracted features are huge in dimensions; they are alleviated under principle component analysis (PCA) approach, which is the strongest model for solving “curse of dimensionality”. Then, the dimensional reduced features are subjected to deep belief neural network (DBN), where the race gets detected. Further, to make the proposed framework more effective with respect to prediction, the weight of DBN is fine tuned with a new hybrid algorithm referred as lion mutated and updated dragon algorithm (LMUDA), which is the conceptual hybridization of lion algorithm (LA) and dragonfly algorithm (DA).

The performance of proposed work is compared over other state-of-the-art models in terms of accuracy and error performance. Moreover, LMUDA attains high accuracy at 100th iteration with 90% of training, which is 11.1, 8.8, 5.5 and 3.3% better than the performance when learning percentage (LP) = 50%, 60%, 70%, and 80%, respectively. More particularly, the performance of proposed DBN + LMUDA is 22.2, 12.5 and 33.3% better than the traditional classifiers DCNN, DBN and LDA, respectively.

This paper achieves the objective detecting the human races from the faces. Particularly, MSER feature and SURF features are extracted under shape features and dense color feature are extracted as color feature. As a novelty, to make the race detection more accurate, the weight of DBN is fine tuned with a new hybrid algorithm referred as LMUDA, which is the conceptual hybridization of LA and DA, respectively.

This paper gives a review of the finite element techniques (FE) applied in the area of material processing. The latest trends in metal forming, non‐metal forming and powder metallurgy are briefly discussed. The range of applications of finite elements on the subjects is extremely wide and cannot be presented in a single paper; therefore the aim of the paper is to give FE users only an encyclopaedic view of the different possibilities that exist today in the various fields mentioned above. An appendix included at the end of the paper presents a bibliography on finite element applications in material processing for the last five years, and more than 1100 references are listed.

The aim of the present study is twofold. First is investigating the factors associated with the effectiveness of Facebook advertising and its resultant impact on behavioral and attitudinal loyalty. The second is testing the moderating impact of control over ads and brand authenticity.

This study is conducted by adopting the cross-sectional data collection technique, two samples with 396 and 482 sample sizes were collected at different points in time. Partial least square-structural equation modeling (PLS-SEM) technique, using Smart PLS 3.0 software, was applied to analyze the data.

The results show that the moderating effect of behavioral control on the relationship between advertising intrusive and attitude towards Facebook advertising was insignificant for both samples. Brand authenticity was significant in moderating the relationship between an individual's attitude towards Facebook advertising and behavior towards the brand for sample 1 and was insignificant for sample 2. Behaving towards brands resulted in attitudinal and behavioral loyalty intentions of individuals for both samples.

This study contributes to the body of knowledge in four ways besides contextual contribution. First, it investigated the moderating influence of perceived behavioral control on the relationship between advertising intrusiveness and attitude towards Facebook advertising. Second, this study also studied the relationship between attitude towards Facebook advertising and behavior towards the brand, moderated by brand authenticity. Third, this study extended the Facebook advertising Framework to behavioral and attitudinal loyalty. Fourth, this study methodologically contributes by conducting a two-sample study to enhance the generalizability.

The purpose of this paper is to focus on links between former “Heilbronn Symposia” on social, economic and political changes, and evolutionary concepts of the nineteenth and early twentieth century to solve the “Social Question” (“S. Qu.”) in Germany.

The approach is based on references to authors of German historical schools, social policy, labor economics and liberal economic policy. The paper supplies a literature review in the area of social policy. It starts from different earlier definitions of the S. Qu. An overview is provided of selected studies of formerly leading German authors, who basically investigated economic and social policies conditioned by the existing economic system. The contents demonstrate different perspectives of the considered authors: Wilhelm Roscher's long‐term, even “modern” view of the development of property and wealth; Gustav Schmoller's broad view of economic and social development, demanding a strong state, efficient organizations of entrepreneurs and trade unions; Lujo Brentano's demand of basic institutional changes concerning labor markets and social security by trade unions; authors of different social‐economic studies written at the twentieth century, like Leopold von Wiese, Walter Eucken, Gerhard Weisser and Hans Peter Widmaier.

The findings point out: not all of the considered authors applied the same long‐term view; all of the authors demonstrated negative social effects of industrialization; authors of the twentieth century pointed out a broader concern of S. Qu. and social policy than former authors.

Areas of future research include: a broadening perspective of long‐term studies, and an increasing demand for analyses of social disturbances and of effects of social policy on the distribution of life conditions.

The comparison of selected authors focusing on their views of the S. Qu. in Germany during the nineteenth and twentieth centuries allows for special conclusions related to the causes, performance and measures to solve or at least reduce the burden of the S. Qu. in the considered economy.

The purpose of this paper is to carry out numerical modeling of single-blow transient analysis using FLUENT porous media model for estimation of heat transfer and pressure drop characteristics of offset and wavy fins.

A computational fluid dynamics program FLUENT has been used to predict the design data in terms of j and f factors for plate-fin heat exchanger wavy and offset strip fins, which are widely used in aerospace applications.

The suitable design data in terms of Colburn j and Fanning friction f factors is generated and presented correlations for wavy fins covering the laminar, transition and turbulent flow regimes.

The correlations for the friction factor f and Colburn factor j have been found to be good by comparing with other references. The correlations can be used by the heat exchanger designers and can reduce the number of tests and modification of the prototype to a minimum for similar applications and types of fins.