to identify the different movements generated by a human arm such as flexion

Top PDF to identify the different movements generated by a human arm such as flexion:

Analysis and identification of the movements of a human arm using an electromyographic signal acquisition and processing system

Analysis and identification of the movements of a human arm using an electromyographic signal acquisition and processing system

Previously, information of the aforementioned movements is obtained to determine the best method of processing these signals generated by the movements. We proceed to program in Matlab to acquire and process these signals in real time. The acquisition system is made up of an EMG sensor implemented with an accelerometer sensor that helps determine the position and the set is connected to an Arduino Promicro that is configured as an interface for data acquisition with Matlab. These signals that are processed by Matlab will be shown by a graph.
Mostrar más

14 Lee mas

Urban management solutions in promoting Iranian-Islamic lifestyle. (Case Study: Tehran Municipality)

Urban management solutions in promoting Iranian-Islamic lifestyle. (Case Study: Tehran Municipality)

The collective behavior of humans in the environment will become a culture of multi-dimensional interaction, in which social gains will emerge that will affect the human community. One of these products is the emergence of democratic and dynamic spaces that commit humans to society and their environment. This means that the hidden dialogue between the environment and the human being and the human community is formed that transforms space into a place. On the other hand, the design of the perimeter space by architects will act as a powerful catalyst for the formation of human interactions and the sense of space democracy and, as a result, the realization of social development. Such spaces range from the millennia BC to the present era, as well as from Greek and Roman civilization to Islamic civilization. The most important factor in these civilizations is the creation of a systemic people based on the opinions and opinions of the people of the community. Examples of these spaces include the Agouracas, the Forumas and the Herbab in ancient Greece, Rome, and Japan [1]. Also, mosques, churches, temples, squares, and markets are among the places where the idea of being democratic is quite clear. Nowadays, the emergence of the Senate in addition to the above spaces has helped the spirit of democracy and democracy in the community. The research approach has a verdict on the subject. Given the rapid and growing human population in today’s modern societies, the need for more cities to provide synergistic spaces in relation to human behavior is felt more and more. The emergence of spaces that are in line with the culture of civil society and the interactions formed at different levels of behavioral society, will gradually shape the concept of place and life in the quality of human spaces. The influence of thoughts and thoughts on shaping people’s lives and observing the behaviors and activities that shape cultural patterns lead us to formulate the basic principles for designing the environment. The need to identify the culture of the target community is an issue in the study of urban management strategies for the promotion of Iranian-Islamic lifestyles for the design of suitable space and the re-emergence of social values, such as social interactions, democracy, and the surrounding spheres of the phenomenon (Case study: Tehran Municipality). The need to identify the culture of the target community, to design suitable space and revitalize social values, such as social interactions, democracy and the bays of these phenomena, are the issues that in this research are the role of Tehran municipality in creating social development with the promotion of lifestyle of Iran - Islamic are considered.
Mostrar más

5 Lee mas

Sharing Human-Generated Observations by Integrating HMI and the Semantic Sensor Web

Sharing Human-Generated Observations by Integrating HMI and the Semantic Sensor Web

As we stated before, developing in-vehicle HMI systems requires not only the integration of the driver’s input/output information (e.g., speech, touch, graphic displays, etc.), but also the proper management of data provided from different sensor sources: from the car (e.g., speed, wheel traction), the driver (e.g., mood, fatigue), and environment (road, traffic, weather, etc.) [23]. The HMI designer typically needs to interpret the sensed data in order to identify situations that are either of direct interest to the driver, or which will help to shape communication strategies that are appropriate for each situation. The W3C is in the process of defining an architecture recommendation for the design of multimodal interfaces: the MMI Reference Architecture [15]. Major components in the W3C MMI architecture, represented in Figure 2, are the Input and Output Modality Components, which handle the information coming in from and going out to the human user, and the Interaction Manager, which coordinates the flow of the communication in the different modalities and decides the overall communication strategy in response to successive inputs from the user. The MMI architecture also considers two important elements: (1) a data component which stores the data that the Interaction Manager needs to perform its functions; and (2) an event-based communication layer to carry events between the modality components and the Interaction Manager.
Mostrar más

24 Lee mas

(Re)Construcción de la Identidad a través del Aprendizaje de un Segundo Idioma

(Re)Construcción de la Identidad a través del Aprendizaje de un Segundo Idioma

Before presenting six examples of empirical studies which explain some of the changes that learners’ identity may undergo, there are some important constructs, such as identity, investment, imagined communities and communities of practice, that need to be defined to understand the content. Human beings have spent a great deal of their time trying to find answers to questions about life such as identity. This path has led many researchers to describe this construct as manageable and changeable, depending on the surroundings of the person who is involved (Block, 1997, p. 864). More specifically, it can easily be shaped by the exposure to other languages and cultures (Ruiz-Cecilia, 2012). Bonny Norton (as cited by Norton and McKinney, 2011) defines identity as “how a person understands his or her relationship to the world, how that relationship is constructed across time and space, and how the person understands possibilities for the future” (p. 73). In other words, learners’ identity is created from within the person and that is why language is so influential. Following this idea, learners come to realize that language can be used as a tool to identify who they are, to find a job, to make friends or even to create a new identity different from the one they own in their mother tongue. A new identity that might offer them the freedom and confidence that they lack in their first language. These situations, although unconsciously, are motivating factors for individuals to start learning a new language. Learners create a “socially and historically constructed relationship […] to the target language, and their often ambivalent desire to learn and practice it” (Norton as cited by Norton and McKinney, 2011, p. 75). This relationship between learners and the target language is defined as investment. The degree of investment in a second language depends on the gains perceived by the
Mostrar más

12 Lee mas

La integración de Internet en la educación escolar española : situación actual y perspectivas de futuro

La integración de Internet en la educación escolar española : situación actual y perspectivas de futuro

Regardless of the frequency and variety of ICT uses, educational innovation is not the main aim of the implementation of these technologies in schools. Most of the teachers who use ICT in class admit they have implemented it mainly as a support to teaching activities they already carried out (68.3%). A mere 17.5% of the teachers claim to have adopted ICT to introduce important changes in the way they teach and they assign tasks to their students. Only 13.7% of the head teachers admitted projects were being carried out by means of ICT to change essential aspects in the way their schools or high schools function. Similarly, when head teachers commented on the priorities in the implementation of ICT, the less frequent (27.5% of the schools and high schools where such priorities were considered) was the implementation of these technologies to change the general educational aims of the school or high school.
Mostrar más

9 Lee mas

Áreas potenciales para plantaciones forestales con Brosimum alicastrum Sw., con fines de restauración

Áreas potenciales para plantaciones forestales con Brosimum alicastrum Sw., con fines de restauración

Restoration forest plantations are an alternative to recover degraded land and prevent erosion, as well as the reconversion to forest use of dismantled soils for agricultural and livestock purposes. The objective of this study was to determine the potential areas of forest plantations with Brosimum alicastrum, for restoration purposes in the state of Michoacán, through the use of geographic information systems. The delimitation of the areas was done with the programs IDRISI 32 and ArcView, and the environmental requirements of the species. The variables considered were precipitation, temperature, soil, altitude and slope. Twelve maps were generated in total, 10 for five regions and two for the state, showing the potential areas for the establishment of forest plantations for the restoration of this species in slope ranges of 0-15 % (mechanized) and 15 -30 % (not mechanized). The total area with potential to establish plantations for restoration purposes in the entity was 86 408 ha, of these 71 687 ha correspond to slopes of 0-15 %, and 14 721 ha in slopes of 15-30 %. The plantations can be established in the region: IV Oriente, V Tepalcatepec, VIII Tierra Caliente, IX Sierra Costa and X Infiernillo. The dry tropic of the state of Michoacán due to its ecological, geological, physiographic, and topographic characteristics, presents favorable conditions for the potential development of forest plantations of restoration with Brosimum alicastrum.
Mostrar más

26 Lee mas

High-power, continuous-wave optical parametric oscillators from visible to near-infrared

High-power, continuous-wave optical parametric oscillators from visible to near-infrared

At the same time, for further progress in cw SRO technology, it is imperative to devise new strategies and improved architectures capable of reducing system complexity and cost, while maintaining or enhancing the device performance with regard to all important operating parameters. A major step in this direction is the deployment of more simplified and cost-effective pump sources based on the rapidly advancing fiber laser technology to replace the more complex and relatively expensive cw solid-state laser pump sources which have been predominantly used to date. This approach has already been extensively demonstrated by using cw fiber- laser-based pump sources at 1064 nm in combination with PPLN [89–91], providing high-power, single-frequency, cw radiation with wide tunability in the near- and mid-IR. However, extension of cw fiber laser technology to the green, necessary for pumping visible and near-IR (<1 µm) cw SROs based on, for example, MgO:sPPLT has so far not been possible, because of the difficulty in generating sufficient cw pump power with the required characteristics to drive the SRO. As, a result the realization of cw SROs, till date, using MgO:sPPLT crystal pumped in the visible [13; 58; 70] were only possible using commercially available, relatively expensive intracavity frequency-doubled solid-state green sources (e.g. Verdi 10, Coherent), due to the scarcity of alternative high-power source.
Mostrar más

208 Lee mas

“My Curse Fall on Sweeney”: A Critical Introduction to Seamus Heaney’s Sweeney Astray

“My Curse Fall on Sweeney”: A Critical Introduction to Seamus Heaney’s Sweeney Astray

We have considered it convenient to carry out a documental research in order to accomplish a revision of the different investigations so far. To help us in this analysis we will rely on some authors who have dealt with the topic before, such as J. W. Hanna’s “The Battle of ‘Mag Rath’: Its True Site Determined” (1856), Feargal Ó Béarra’s Mental Health, Spirituality, and Religion in the Middle Ages and Early Modern Age (2014), and Francis William Stubbs’ “Early Monastic History of Dromiskin, in the County of Louth” (1897). Despite not being the only authors who have dealt with issues that relate to the topics and events in Sweeney Astray, they have been nevertheless the most important ones for our analysis, as we will see henceforth. It is necessary to mention that, although there are authors who deal with issues related to our text, we have no record that anyone has done a study like this one we are presenting.
Mostrar más

34 Lee mas

A Motor-less and Gear-less Bio-mimetic Robotic Fish Design

A Motor-less and Gear-less Bio-mimetic Robotic Fish Design

of the actuators, at advantage of the available payload. Moreover, the actuators are absolutely silent and do not produce any vibration, a feature which can be exploited, e.g. in the observation of sea wild life since the robot would not disturb in any way (besides its presence). Current work is aimed at performing extensive experiments with the prototype in order to validate the results of the simulations. In conclusion, we believe that smart actuators and flexible continuous structures can be a promising field for making alternative robots, that are simpler and lighter, and that can have interesting application domains.
Mostrar más

6 Lee mas

Analysis of hedge funds, risk measures and portfolio construction

Analysis of hedge funds, risk measures and portfolio construction

New approaches try to overcome these limitations. The most successful one is the Omega ratio developed by Keating and Shadwick (2002). Although the approach is similar to the previous ratios, the Omega ratio considers all the moments of the distribution and differentiates between the excess upward and downward returns volatility (some researchers have named this ratio as the sharper Sharpe). It avoids the problem of estimating individual moments by measuring their total impact, which is of course precisely what is of interest to practitioners. The performance measure is a natural feature of the returns distribution, it is obtained through the cumulative distribution and hence there is no need to know any of the individual moments in order to observe their effect in total. In fact its construction from a returns distribution is entirely canonical, requiring no choices and admitting no ambiguity which is not already present in the data. As such it may be regarded as an extension of the notion of the cumulative distribution. It is a function that may be evaluated at any value in the range of possible returns, so that it allows performance comparisons with respect to any ‘risk’ threshold in this range. That is why the use of a function of returns rather than a single number to measure performance is essential
Mostrar más

129 Lee mas

Germans in space: astronomy and anthropologie in the eighteenth century

Germans in space: astronomy and anthropologie in the eighteenth century

In this essay I argue that post-Copernican astronomy was an essential factor in the rise of German Anthropology (Anthropologie), a new approach to understanding Man that arose in late eighteenth century Germany. Anthropologie was a highly philosophical cosmopolitanism that sought to unify all of humanity’s drives, experiences, and contradictions in a single, broad vision of the human being as a terrestrial phenomenon. It is, therefore, not to be confused with modern anthropology, which not only emphasizes the study of (usually incommensurable) cultures, but also lacks the metaphysical context that informed this German debate. Defined early in the eighteenth century in largely Cartesian terms as the study of the human being’s dual nature (body and soul), by the second half of the century thinkers such as Johann Gottfried Herder and Immanuel Kant, who were both heavily influenced by the latest astronomical literature, had reconceptualized the human being as an earthly creature whose spirit (Geist) could only be understood with reference to this world. For German thinkers in the late eighteenth century Man did not have an inherent nature, but was the result of an ongoing historical process that was anchored in a physical environment that had been created by God.
Mostrar más

42 Lee mas

Descriptions of interpreting and their ethical consequences

Descriptions of interpreting and their ethical consequences

Finally in this category, one sub-stream of interest in interpreting has been an often theoretical, rather than professional, interest in the phenomenon of the ‘natural interpreter’; that is, a bilingual who may demonstrate that bilingualism by translating at any time in an informal setting, not for professional purposes but in any social, familial or personal context. Arising from a long and well-established field of research and theory on bilingualism, this would be of tangential relevance to the area of the professional conduct of interpreting, except that so many instances in the natural translation research draw on examples of children or other bilinguals interpreting in situations where professional interpreters may well be used but are not. Recent work redrawing attention to the long-time theoretical work of Brian Harris (Mayor and Ivars 2011, Ivars and Mayor 2012) interestingly contains material that begins to argue for the benefits to bilingual children of having them performing interpreting tasks, rather than earlier views of the detrimental side of such practice. For our concern with ethics, however, wherever natural interpreters are permitted to interpret in any critical or institutional situation, ethical responsibility continues to rest with those granting such permission.
Mostrar más

19 Lee mas

Characterization of amorphous Si generated through classical molecular dynamics simulations

Characterization of amorphous Si generated through classical molecular dynamics simulations

Si: a lower first peak in the radial distribution function, a wider second peak, and higher values in the region between the first and the second peaks. Weak peaks at the sides of the empty region around 2.8 ˚ A are known effects due to the cut-off function in the empirical potential [12]. Thus, the more relaxed a-Si sample is achieved by quenching l-Si with the slowest cooling rate considered (7.8 · 10 12 K/s). While its energy (0.24 eV/atom) is comparable to the obtained by other theoretical models, its structural characteristics are still far from well re- laxed a-Si: high atomic coordination (4.14), low average bond angle (108.5 ◦ ), and high bond angle dispersion (∆θ = 14.6 ◦ ). A logarithmic fit of data shown in Fig. 1 indicates that a cooling rate of ∼ 4.3 · 10 10 K/s would
Mostrar más

6 Lee mas

Characterization of spread in a mesoscale ensemble prediction system: multiphysics versus initial conditions

Characterization of spread in a mesoscale ensemble prediction system: multiphysics versus initial conditions

In this research, uncertainty associated with initial and boundary conditions is evaluated for short-term wind speed prediction in complex terrain. The study area is the Alaiz mountain range, a windy region in the northern Iberian Peninsula. A multiphysics and multiple initial and boundary condition ensemble prediction system (EPS) was generated using the Weather Research and Forecasting model. Uncertainty of the EPS is analyzed using an index based on the spread between ensemble members, considering its behavior under different wind speed and direction events, and also during distinct atmospheric stability conditions. The results corroborate that physical parameterization uncertainty is greater for short-term forecasts (63.5 %). However, it is also necessary to consider the uncertainty associated with initial conditions, not only for its quantitative importance (36.5 %) but also for its behavior during thermal inversion conditions in the narrow valleys surrounded by mountains.
Mostrar más

9 Lee mas

GAME LEVELS AND DECLARATIVE KNOWLEDGE IN YOUNG BASKETBALL PLAYERS FROM CEARÁ STATE  [Niveles de Juego y conocimiento declarativo en jóvenes jugadores de baloncesto del Estado de Ceará]

GAME LEVELS AND DECLARATIVE KNOWLEDGE IN YOUNG BASKETBALL PLAYERS FROM CEARÁ STATE [Niveles de Juego y conocimiento declarativo en jóvenes jugadores de baloncesto del Estado de Ceará]

Starting from the tactical evaluation, with regard to the choice of what to do with the ball, student A (figure 4) had a moderate use in the decisions taken, according to the experts. This result was only due to the errors in the shoots. Leal & Sillero (2010) say that “a tactical and decisive behavior is based on the athlete's anticipatory ability, the forecast that certain events can happen is a variable that facilitates the correct decision making”. This student did very well in both defensive and offensive aspects, participating in the game. Passes have a high hit rate, always done objectively. However, the shoots were not very good, considering the number of attempts and hits, even so the student A was able to add 12 points. The execution of skills can be considered effective. Student A was very objective in his game, risking dribbles, performing accurate passes and kicks at the appropriate times, although not all were successful, showing having, according to the definition of Garganta (1998) a great notion of adaptability. The support actions have been performed correctly, thanks to moving in search of space, always creating pass line as well as spaces for your teammate play. The defensive actions were very effective, making very few mistakes in the defensive sliding.
Mostrar más

14 Lee mas

Esquemas de contratos agrícolas para la producción de Agave Tequilana Weber en la región de Tequila, Jalisco.

Esquemas de contratos agrícolas para la producción de Agave Tequilana Weber en la región de Tequila, Jalisco.

In economic terms, the contracts allow establishing commercial relationships between agaveros and industries and reduce the economic risk, in exchange for the industry subjecting its interests to the primary producers through financing (Macías and Valenzuela, 2009). Another negative factor that generates conflicts in the contracts between industry and producers is that some costs are not stipulated; for example, the price of shoots (Nava et al., 2006), which can represent important expenses for agaveros. Orozco (2010) mentions various problems with the contracts due to three causes: 1) the risk specific to agricultural activities (environmental), due to the very long biological cycle of agave (7 years); 2) defaults from tequila companies when they do not pay the market price in periods of scarcity, since it is higher than the agreed on; and 3) on the contrary, when the price paid to agaveros is lower than the one agreed on during periods of oversupply.
Mostrar más

19 Lee mas

Conceptualizing sexual orientation as a “suspect” category in non-discrimination law: Some reflections on the atala judgment of the inter-american court of human rights

Conceptualizing sexual orientation as a “suspect” category in non-discrimination law: Some reflections on the atala judgment of the inter-american court of human rights

In its first judgment on sexual orientation, the Inter-American Court has recognized the protected status of sexual orientation under the non-discrimination clause of the American Convention on Human Rights. Conceptually, sexual orientation is identified as a “suspect” ground of differentiation. To arrive at this conclusion two conceptual foundations mentioned in legal scholarship seem to have played a particularly important role in the Court’s approach. Sexual orientation is to be regarded as a suspect ground for differentiation because it is a core part of personal identity and of the way in which a person gives meaning to his or her life project. I would say this is the most important reason why sexual orientation is to be regarded as suspect ground. In addition, it is to be considered suspect because homosexuals have suffered all kinds of detrimental and damaging treatment due to the prejudice and stereotyping attached to this characteristic. Any distinction based on sexual orientation should therefore be regarded with great suspicion.
Mostrar más

18 Lee mas

Sustainable building design decisions for a large number of alternatives

Sustainable building design decisions for a large number of alternatives

The design of buildings, civil infrastructure and other complex systems in our built environment involves considering many, often conflicting, design criteria. Architecture, engineering and construction (AEC) project teams often use multi-criteria decision making (MCDM) methods to help them arrive at a preferred design solution. An emergent MCDM methods in practice today is Choosing by Advantages (CBA) which has been has been successfully applied to many AEC projects to assess between two and ten design alternatives. This study presents a new protocol for applying CBA to hundreds or thousands of alternatives. It involves clustering alternatives into a few representative design configurations based on feature similarity using the K-means method. Preferences between these designs are then generalized using linear regression. An experiment involving student subjects was conducted to measure the level of accuracy in which preferences can be generalized by the proposed protocol. The experiment considered 1,000 different building design alternatives and four different clustering configurations (3, 6, 8 and 10 clusters). When eight clusters were used, decisions were always consistent to those made without clustering.
Mostrar más

118 Lee mas

Dynamic Facial Emotion Recognition Oriented to HCI Applications

Dynamic Facial Emotion Recognition Oriented to HCI Applications

The first expression on the top left of Fig.9 is surprise. The user has quite a pronounced nasolabial wrinkle, even in rest position, so the algorithm detects a slight activation of joy expression. However, as the rest of the facial features become more noticeable (eyelids opening, eyebrows rising or mouth opening), neuron competition makes the output change clearly to the correct surprise expression. The second expression on the top is sadness. It can be seen that the presence of glasses does not affect the method performance. The third expression shown is fear. Here, the algorithm starts detecting a surprise expression, due to the fact that, at the beginning of the sequence, facial features which are characteristic for this emotion are active: whole eyebrow rising (AU1+AU2), eyelids opening (AU5) and mouth opening (AU26). As the expression evolves, fear expression features become more intense: inner part of the eyebrows rising (AU1), mouth corners pulled down (AU15), and nostrils opening (AU10). Also, the position of the lips in the second half of the sequence causes a little rise in the output that corresponds to the sadness expression. However, neuron competition makes the fear expression prevail over the rest of the expressions.
Mostrar más

28 Lee mas

Anlisis por elementos finitos del efecto de los movimientos bsicos de la cadera en el estmulo mecnico en el fmur proximal

Anlisis por elementos finitos del efecto de los movimientos bsicos de la cadera en el estmulo mecnico en el fmur proximal

ponded to those areas where the trabecular patter- ns crossed each other (Figure 3). We found that ex- tension is the hip joint movement that exhibits the highest stress gradient in both the mid-sagittal cut and the femoral neck. If a higher mechanical sti- mulus that is characterized by a high shear stress value produces stronger bone tissue, we can say that the stress patterns exhibited in the extension loading case very effectively support both bending and torsional loads (Figure 4). The abduction loading case has the second best stress distribu- tion, followed by the adduction and flexion loading cases.
Mostrar más

7 Lee mas

Show all 10000 documents...