Application Of Different Concepts Research Articles

Techno-functional and 3D shape analysis applied for investigating the variability of backed tools in the Late Middle Paleolithic of Central Europe.

In the Late Middle Paleolithic of Central Europe, two main cultural complexes have been distinguished: the Micoquian or Keilmessergruppe (KMG), and the Mousterian. Their differences mainly consist in the frequence of some retouched tools and the presence of bifacial technology. When these industries coexist, one element of discussion is the application of different concepts to manufacture tools with the same techno-functionality. This is particularly true for backed artifacts, such as Keilmesser (backed, asymmetrical bifacially-shaped knives) opposed to flake-tools equipped with a natural or knapped back. We conducted a techno-functional analysis of the backed tools from the G-Layer-Complex of Sesselfelsgrotte, one of the main Late Middle Paleolithic sequences in Central Europe, characterized by a combination of KMG and Mousterian aspects. In order to better understand the morpho-metrical data, 3D scans were used for recording technical features and performing semi-automatic geometric morphometrics. Results indicate that the techno-functional schemes of Keilmesser show a moderate variability and often overlap with the schemes of other typological groups. Within bifacial backed knives, a process of imitation of unifacial flake tools' functionaly was recognized particularly in the cutting edge manufacturing. Keilmesser proved to be the long-life, versatile version of backed flake-tools, also due to the recurrent valence as both tool and core. This is why Keilmesser represent an ideal strategic blank when a mobile and multi-functional tool is needed. Based on these data, it is assumed that the relationship between Mousterian and KMG is deeply rooted and the emergence of KMG aspects could be related to constrained situations characterizing the long cold stages of the Early Weichselian. A higher regional mobility caused by the comparably low predictability of resources characterized the subsistence tactics of Neanderthal groups especially at the borders of their overall distribution. For this reason, Keilmesser could have represented an ecological answer before possibly becoming a marker of cultural identity.

Car in the modern world

Car stands idle in the parking lot for most of its “life”. Natural solution is to change the form of ownership – one car must serve as many people as possible. Solution to the problem is achieved by the emergence of non-existing technologies. Digital technologies allow us to take a slightly different look at the situation and make possible approaches that have not previously been possible to implement. This study is aimed at the application of different concepts of car use to improve vehicle use efficiency.Car sharing is the use of the same car by different people. First attempts to implement car sharing were made as early as 1948 in Zurich. However, the concept did not go further. First implementation of car sharing projects occurred only in the 1970s. A new era in car sharing was opened in the 2000s. Success of car sharing was facilitated by high level of urbanization and low incomes, in which buying and maintaining a personal car can be difficult. Car sharing becomes an integral part of the city network. Ride sharing is guaranteed to reduce traffic, help offload roads during rush hours and reduce the harmful environmental impact of car emissions. Ride sourcing in today ‘s world is one of the most recognizable and common forms of mobility. How quickly and successfully digital technologies will be introduced, when using various concepts of car use, the speed of the emergence of truly unmanned vehicles on the street and road network of cities, the presence of a competent information policy, that popularizes the departure from traditional ways of owning a car, and most importantly, increasing public confidence, that after the mass rejection of personal cars, the cost of using services will not increase significantly, defines the role of various forms of car use in the future transport system of the world’s cities.

Optimally solving a versatile Traveling Salesman Problem on tree networks with soft due dates and multiple congestion scenarios

This paper considers a versatile Traveling Salesman Problem (TSP) on tree networks with soft due date restrictions. Data unreliability is handled by introducing multiple congestion scenarios. The objective function sums up customizable monotonous cost assessments of the scenario-dependent total tardiness. Due to its generality, this covers a versatile application of different concepts including several robustness issues. Various complexity results are derived for the minimization of total tardiness: While the problem is proven to be at least binary NP-hard in all cases, strongly NP-hardness is shown if either the number of congestion scenarios or the number of roads are allowed to increase linearly with the number of requests. The same applies if non-zero unloading times occur. In order to efficiently solve the problem, a best-first Branch&Bound approach is proposed that attains a pseudo-polynomial running time if none of the three aforementioned cases applies. The Branch&Bound approach is evaluated by a computational study.

In-process evaluation of culture errors using morphology-based image analysis.

IntroductionAdvancing industrial-scale manufacture of cells as therapeutic products is an example of the wide applications of regenerative medicine. However, one bottleneck in establishing stable and efficient cell manufacture is quality control. Owing to the lack of effective in-process measurement technology, analyzing the time-consuming and complex cell culture process that essentially determines cellular quality is difficult and only performed by manual microscopic observation. Our group has been applying advanced image-processing and machine-learning modeling techniques to construct prediction models that support quality evaluations during cell culture. In this study, as a model of errors during the cell culture process, intentional errors were compared to the standard culture and analyzed based only on the time-course morphological information of the cells.MethodsTwenty-one lots of human mesenchymal stem cells (MSCs), including both bone-marrow-derived MSCs and adipose-derived MSCs, were cultured under 5 conditions (one standard and 4 types of intentional errors, such as clear failure of handlings and machinery malfunctions). Using time-course microscopic images, cell morphological profiles were quantitatively measured and utilized for visualization and prediction modeling. For visualization, modified principal component analysis (PCA) was used. For prediction modeling, linear regression analysis and the MT method were applied.ResultsBy modified PCA visualization, the differences in cellular lots and culture conditions were illustrated as traits on a morphological transition line plot and found to be effective descriptors for discriminating the deviated samples in a real-time manner. In prediction modeling, both the cell growth rate and error condition discrimination showed high accuracy (>80%), which required only 2 days of culture. Moreover, we demonstrated the applicability of different concepts of machine learning using the MT method, which is effective for manufacture processes that mostly collect standard data but not a large amount of failure data.ConclusionsMorphological information that can be quantitatively acquired during cell culture has great potential as an in-process measurement tool for quality control in cell manufacturing processes.

Beauty Metaphors in Advertising in American and Russian Women’s Fashion Magazines

Metaphors are widely used in advertising, where they have special characteristics and serve to persuade customers to buy products or services being advertised. Metaphors can be seen as a reflection of the culture where they are used. In this paper we look at metaphors from the perspective of Conceptual Metaphor Theory and examine metaphors for beauty that are used in American and Russian fashion magazines for women. In analyzing beauty metaphors, we characterize which source domains each culture uses and explore how these source domains are similar or different. As recognizing the cultural applicability of different concepts based on metaphors is essential for advertising, translation, cultural communication, product placement and other areas, we believe that our study can make some contributions.

Measuring customer profitability: The applicability of different concepts in practice

Measuring customer profitability implies the quantification of the contribution of customers or customer groups to the company's financial performance, regardless of whether profit or net cash flow is used as financial output. The need for measuring customer profitability stems from the fact that each customer does not equally contribute to the profitability of the company. Customer profitability can be measured at the level of individual customers or groups of customers. Companies can calculate the contribution of customers to their current profitability or evaluate customers' ability to generate profits in the future by means of projecting revenues and costs (cash flow) t hat will be caused by customers in the forthcoming years of cooperation. Bearing in mind that management accounting theory is predominantly focused on the development of new methods and techniques as well as on the improvement of already existing ones, and being aware that there is a frequent absence of consideration of the extent to which these methods have been accepted in practice, this paper will attempt to identify the level of acceptance of the methods for measuring customer profitability in business practice, to determine contingent factors that influence the companies' need for the application of these methods and to acknowledge the difficulties that companies experience in the process of their implementation and application.

Different applications of concept maps in Higher Education

Purpose: The aim of this work is to show different applications of concept maps in higher education, concretely in qualifications of the Polytechnic University of Valencia. Design/methodology/approach: Different methodologies have been used depending on the application of concept maps: as evaluation tool, as knowledge organizing tool, and as meaningful learning tool. Findings: Students consider the concept maps useful principally to select key ideas, to achieve a comprehensive view of the lesson, and to bring up the subject. Moreover, concept maps promote the meaningful and active learning, help students to understand, follow-up, and learn subjects with a high load of contents. Research limitations/implications: The most important limitation is the use of the concept maps in subjects with a high number of students. Practical implications: The realization of concept maps allows the student to develop generic competences. Originality/value: The originality of this work is to show how a same tool can be used in different subjects of different qualifications.

Different applications of concept maps in Higher Education

Purpose: The aim of this work is to show different applications of concept maps in higher education, concretely in qualifications of the Polytechnic University of Valencia. Design/methodology/approach: Different methodologies have been used depending on the application of concept maps: as evaluation tool, as knowledge organizing tool, and as meaningful learning tool. Findings: Students consider the concept maps useful principally to select key ideas, to achieve a comprehensive view of the lesson, and to bring up the subject. Moreover, concept maps promote the meaningful and active learning, help students to understand, follow-up, and learn subjects with a high load of contents. Research limitations/implications: The most important limitation is the use of the concept maps in subjects with a high number of students. Practical implications: The realization of concept maps allows the student to develop generic competences. Originality/value: The originality of this work is to show how a same tool can be used in different subjects of different qualifications.

Application of different concepts for fatigue design of welded joints in rotating components in mechanical engineering

Several concepts are used for the fatigue design of welded joints. In this paper investigations are presented, which were carried out in a joint project between five research institutes [1]. The aim is to investigate currently applied fatigue concepts with respect to their limitations, compatibility and reliability, in order to improve the accuracy of lifetime estimation and to simplify the choice of the optimum fatigue concept. Here, the results of the investigation of welded joints in rotating universal joint shafts are shown [2]. In the critical weld, a structural steel and a quenched and tempered steel are joined. In practice, stresses result from rotating bending, torsion and also residual stresses are sometimes present. Several welding techniques, MAG, TIG and laser welding, and two seam geometries were investigated with regard to their influence on fatigue strength. Experiments were conducted with welded tube specimens representative of the actual component application and with derived flat specimens as detail specimens. The welded sheet thickness was 5.5 mm. Fatigue strength was investigated from 10 4 to 10 7 numbers of cycles. In numerical analyses, nominal stress, structural hot spot stress and elastic notch stress with reference radii of 0.3 mm and 0.05 mm were calculated. In the comparison of the concepts, their respective advantages and disadvantages have been demonstrated. A comparison of the results with the IIW recommendation for fatigue design of welded joints and components [3] has been carried out and improvements have been suggested.