Extended Playing Techniques on an Augmented Virtual Percussion Instrument

2018 ◽  
Vol 42 (2) ◽  
pp. 8-21
Author(s):  
Victor Zappi ◽  
Andrew Allen ◽  
Sidney Fels
Keyword(s):  
Virtual Instrument ◽  
Physical Modeling ◽  
Musical Instruments ◽  
Traditional Design ◽  
Two Factors ◽  
Percussion Instrument ◽  
And Control ◽  
Percussive Instruments ◽  
Difference Time

Innovation and tradition are two fundamental factors in the design of new digital musical instruments. Although apparently mutually exclusive, novelty does not imply a total disconnection from what we have inherited from hundreds of years of traditional design, and the balance of these two factors often determines the overall quality of an instrument. Inspired by this rationale, in this article we introduce the Hyper Drumhead, a novel augmented virtual instrument whose design is deeply rooted in traditional musical paradigms, yet aimed at the exploration of unprecedented sounds and control. In the first part of the article we analyze the concepts of designing an augmented virtual instrument, explaining their connection with the practice of augmenting traditional instruments. Then we describe the design of the Hyper Drumhead in detail, focusing on its innovative physical modeling implementation. The finite-difference time-domain solver that we use runs on the parallel cores of a commercially available graphics card and permits the simulation of real-time 2-D wave propagation in massively sized domains. Thanks to the modularity of this implementation, musicians can create several 2-D virtual percussive instruments that support realistic playing techniques but whose affordances can be enhanced beyond most of the limits of traditional augmentation.

A Concurrent Design Exploration Method for Realizing Networked Manufacturing Systems

2017 ◽  
Author(s):  
Jelena Milisavljevic ◽  
Sesh Commuri ◽  
Janet K. Allen ◽  
Farrokh Mistree
Keyword(s):  
Manufacturing Systems ◽  
Concurrent Design ◽  
Networked Manufacturing ◽  
Multistage Manufacturing ◽  
Traditional Design ◽  
Design Variables ◽  
And Control ◽  
Automotive Panel ◽  
Selection Of

Multistage manufacturing processes (MMPs) are networked manufacturing systems consisting of multiple operational stations that have characteristics of mechanical and control systems. Common challenges in the design of MMPs are the selection of sensors and tools as this not only affects the dimensional quality of the finished product, but also influences the computational complexity in representing and analyzing the problem. Imprecise or incomplete information results in uncertainty in the models used to represent the MMP and limit the use of traditional design approaches. In this paper, an exploration method for the concurrent design (CDEM) of MMPs under uncertainty is presented wherein the attributes of tools and sensors are treated as design variables, thereby allowing flexibility in a design process. The proposed method is illustrated using an example of automotive panel stamping process. Our focus in this paper is on the method rather than the results per se.

THE IMPACT OF ACOUSTIC OF SELECTED SPACES ON PERCUSSION INSTRUMENTS

Akustika ◽  
2020 ◽  
pp. 37-85
Author(s):  
Vojtěch Ondrejka ◽  
Tomáš Gergeĺ ◽  
Anna Danihelová ◽  
Martin Čulík ◽  
Dagmara Bednárová ◽  
...  
Keyword(s):  
Sound Quality ◽  
Musical Instrument ◽  
Musical Instruments ◽  
Acoustic Properties ◽  
Reverberation Time ◽  
Percussion Instruments ◽  
Percussion Instrument ◽  
The Impact ◽  
Physical Quantities

The results of the investigation of the room acoustic properties influence on the perception of the sound of percussion musical instruments are presented in the paper. At first, the acoustic properties of two rooms were determined without musical instrument. Subsequently, the acoustic properties of the rooms were determined during the presentation of cajon music. On the base of reverberation time (EDT, T30), Clarity C80, Definition D50 and bass index BI) we can conclude that the room of the Hron cinema is more suitable for musical presentation, but it cannot be considered as ideal one. The Royal Hall of Zvolen Castle has a smaller influence on the sound of a percussion instrument. The influence of room acoustic properties on the resulting sound of the instrument was evaluated only on the base of results obtained with using the objective methods by the physical quantities measurement. Finally, the design of these rooms modification is presented to achieve a better sound quality of percussion instruments.

scholarly journals Effectiveness of a self-myofascial conditioning programme on pain, depression, anxiety and sleep quality in people with Fibromyalgia

2019 ◽  
Vol 20 (1) ◽  
pp. 147-165
Author(s):  
Diego Ceca ◽  
Ana Pablos ◽  
Laura Elvira ◽  
Lourdes López-Hernández ◽  
Ana L. Ortega
Keyword(s):  
Repeated Measures ◽  
Intervention Group ◽  
Quality Of Sleep ◽  
Control Groups ◽  
Post Intervention ◽  
Myofascial Release ◽  
Two Factors ◽  
And Control ◽  
Los Grupos

La autoliberación miofascial puede facilitar la disminución o desaparición del dolor intenso percibido por las terminaciones nerviosas localizadas en el tejido miofascial. Según algunos investigadores, la fibromialgia (FM) puede estar directamente relacionado con la teoría de la "sensibilización central". El presente estudio tiene como objetivo determinar la efectividad de la aplicación de un programa de autoacondicionamiento miofascial sobre el dolor, la depresión, la ansiedad y la calidad del sueño en personas diagnosticadas con fibromialgia (FM). La muestra se asignó al azar a los grupos de intervención (n =33) y control (n =33). Los sujetos del grupo intervención participaron en un programa de autoacondicionamiento miofascial compuesto por un total de 40 sesiones de 50 minutos cada una de ellas. Se tomaron medidas pre y post intervención. Los resultados se obtuvieron mediante un ANOVA 2x2 de medidas repetidas con dos factores (tiempo y grupo). Los resultados muestran que, después de completar el programa, los sujetos del grupo intervención obtuvieron una disminución significativa en el dolor general (p <0,01), el nivel de depresión (p <0,05), la ansiedad-estado (p <0,01) y rasgo (p <0,01), así como en tres subescalas relacionadas con la calidad del sueño, como son la "calidad subjetiva del sueño" (p <0,05), la "eficiencia habitual del sueño" (p <0,05) y la "disfunción diaria ”(p <0,001). Estos resultados indican que participar en un programa de autoacondicionamiento miofascial regularmente, bajo el control de un profesional de educación física y deporte, puede afectar positivamente a los pacientes con FM tanto física como psicológicamente. Self-myofascial release can facilitate the diminution or disappearance of the intense pain perceived by the nerve endings located in the myofascial tissue. According to some researchers, fibromyalgia (FM) can be directly related to the "central sensitization" theory. The present study aims to determine the effectiveness of the application of a self-myofascial conditioning programme on pain, depression, anxiety, and quality of sleep in people diagnosed with Fibromyalgia (FM). The sample was randomly assigned to intervention (n = 33) and control groups (n = 33). Subjects in the intervention group took part in a self-myofascial conditioning programme, which consisted of 40 sessions of 50 minutes each. Pre and post-intervention measurements were taken. Results were obtained by a 2x2 ANOVA for repeated measures with two factors (time and group). Results show that, after completing the programme, subjects in the intervention group had seen a significant decrease in general pain (p < 0,01), level of depression (p < 0,05), state (p < 0,01) and trait anxiety (p < 0,01), as well as three subscales related to the quality of sleep, such as “sleep subjective quality” (p < 0,05), “habitual sleep efficiency” (p < 0,05) and “daily dysfunction” (p < 0,001). These results indicate that participating in a self-myofascial conditioning programme regularly and under the control of a physical education and sport professional can affect patients with FM positively both physically and psychologically. A auto-liberação miofascial pode facilitar a diminuição ou o desaparecimento da dor intensa percebida pelas terminações nervosas localizadas no tecido miofascial. Segundo alguns pesquisadores, a fibromialgia (FM) pode estar diretamente relacionada à teoria da "sensibilização central". O presente estudo tem como objetivo determinar a eficácia da aplicação de um programa de auto-condicionamento miofascial na dor, depressão, ansiedade e qualidade do sono em pessoas diagnosticadas com fibromialgia (FM). A amostra foi randomizada para os grupos intervenção (n =33) e controle (n =33). Os sujeitos do grupo de intervenção participaram de um programa de auto- condicionamento miofascial composto por um total de 40 sessões de 50 minutos cada. Medidas de intervenção pré e pós foram tomadas. Os resultados foram obtidos por meio de uma ANOVA 2x2 de medidas repetidas com dois fatores (tempo e grupo). Os resultados mostram que, após o término do programa, os sujeitos do grupo de intervenção obtiveram uma diminuição significativa na dor geral (p <0,01), o nível de depressão (p <0,05), estado de ansiedade (p < 0,01) e traço (p <0,01), assim como em três subescalas relacionadas à qualidade do sono, como a "qualidade subjetiva do sono" (p <0,05), a "eficiência habitual do sono" (p <0,05) e "disfunção diária" (p <0,001). Esses resultados indicam que participar de um programa de auto-condicionamento miofascial regularmente, sob o controle de um profissional de educação física e esportes, pode afetar positivamente os pacientes com FM fisicamente e psicologicamente.

scholarly journals Research on Measurement and Control System of Common Parameters of Agricultural Equipment Based on Wireless Transmission

2021 ◽  
Vol 12 (2) ◽  
pp. 73-86
Author(s):  
Fan Wu ◽  
Aiqin Li ◽  
Saihua He ◽  
Mohammad Ikbal ◽  
Mohamed A. Sharaf Eldean
Keyword(s):  
Control System ◽  
Virtual Instrument ◽  
Wireless Transmission ◽  
Channel Measurements ◽  
Measurement And Control System ◽  
Agricultural Equipment ◽  
Agricultural Use ◽  
And Control ◽  
Measurement And Control

To resolve the limited transmission and complicated layout, the common parameter measurement and control system of agricultural equipment use virtual instrument technology and embedded technology. The research results show that the wireless transmission data of the system is accurate and reliable. The linearity errors of acquisition divestiture (AD) and frequency counting (FI) channel measurements are only 0.38% and 0.006%, respectively, and the resolution is 0.01V and 1 Hz. This performance evaluation fully meets equipment detection in agricultural use. The system is integrated with various wireless transmission platforms, intelligent agricultural equipment, and computer wireless reception and processing. These parameters can significantly improve the automation level and quality of agricultural equipment.

Resistance Monitor and Control for Vacuum Evaporation of Metals and Carbon

1976 ◽  
Vol 34 ◽  
pp. 572-573
Author(s):  
Russell L. Steere ◽  
Eric F. Erbe ◽  
J. Michael Moseley
Keyword(s):  
Electronic Device ◽  
Point Sources ◽  
High Contrast ◽  
Variable Resistor ◽  
Quality Of Results ◽  
Low Contrast ◽  
Evaporation Source ◽  
And Control ◽  
At Will

We have designed and built an electronic device which compares the resistance of a defined area of vacuum evaporated material with a variable resistor. When the two resistances are matched, the device automatically disconnects the primary side of the substrate transformer and stops further evaporation.This approach to controlled evaporation in conjunction with the modified guns and evaporation source permits reliably reproducible multiple Pt shadow films from a single Pt wrapped carbon point source. The reproducibility from consecutive C point sources is also reliable. Furthermore, the device we have developed permits us to select a predetermined resistance so that low contrast high-resolution shadows, heavy high contrast shadows, or any grade in between can be selected at will. The reproducibility and quality of results are demonstrated in Figures 1-4 which represent evaporations at various settings of the variable resistor.

Boilerplate

2012 ◽  
Author(s):  
Margaret Jane Radin
Keyword(s):  
Economic Efficiency ◽  
Analytical Framework ◽  
Daily Basis ◽  
Regulatory Agencies ◽  
Jury Trial ◽  
Comprehensive Treatment ◽  
New Methods ◽  
And Control ◽  
Fine Print

Boilerplate—the fine-print terms and conditions that we become subject to when we click “I agree” online, rent an apartment, or enter an employment contract, for example—pervades all aspects of our modern lives. On a daily basis, most of us accept boilerplate provisions without realizing that should a dispute arise about a purchased good or service, the nonnegotiable boilerplate terms can deprive us of our right to jury trial and relieve providers of responsibility for harm. Boilerplate is the first comprehensive treatment of the problems posed by the increasing use of these terms, demonstrating how their use has degraded traditional notions of consent, agreement, and contract, and sacrificed core rights whose loss threatens the democratic order. This book examines attempts to justify the use of boilerplate provisions by claiming either that recipients freely consent to them or that economic efficiency demands them, and it finds these justifications wanting. It argues that our courts, legislatures, and regulatory agencies have fallen short in their evaluation and oversight of the use of boilerplate clauses. To improve legal evaluation of boilerplate, the book offers a new analytical framework, one that takes into account the nature of the rights affected, the quality of the recipient's consent, and the extent of the use of these terms. It goes on to offer possibilities for new methods of boilerplate evaluation and control, and concludes by discussing positive steps that NGOs, legislators, regulators, courts, and scholars could take to bring about better practices.

Management and engineering solutions to improve processing stock quality and reduce resource-intensity of mining

2018 ◽  
pp. 56-68
Author(s):  
V. V. Agafonov ◽  
V. Yu. Zalyadinov ◽  
M. E. Yusupov ◽  
N. S. Bikteeva
Keyword(s):  
Development Strategy ◽  
Open Pit ◽  
Mining Operations ◽  
High Concern ◽  
General Production ◽  
Resource Intensity ◽  
Product Output ◽  
And Control ◽  
A Company

Sustainability of mining companies is of of high concern. The problem is specifically acute at companies that are monotownor monosettlement-forming. Sustainability of a mine depends in many ways on product quality and production resource-intensity. This article discusses formation of mineral quality indexes in terms of an open pit chrysotile mine. The studies took into account specific features of operation procedures implemented by each structural division of the mine. The analysis has found managerial and technological inconsistencies which affect quality and marketable product output, as well as efficiency of the mine in whole. The background for efficiency enhancement at a company is, by the authors’ opinion, consolidation of personnel subject to the single development strategy, namely: improvement of production and control efficiency, as well as use of available reserves and resources by means of better setup for production. The proposed approaches to planning mining operations and forming mineral quality allow higher quality of processing stock. In addition, a new model proposed for interaction between structural divisions of a mining company ensures improvement of general production indexes.

EFFICIENT MANAGEMENT SYSTEM OF TEACHING TECHNICAL MEANS AT CENTRAL KINDERGARTEN PEDAGOGY COLLEGE IN INDUSTRIAL REVOLUTION 4.0

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Vũ Xuân Hùng
Keyword(s):  
Intellectual Development ◽  
Industrial Revolution ◽  
Current Period ◽  
Efficient Management ◽  
Urgent Task ◽  
Creative Learning ◽  
Cognitive Activities ◽  
And Control ◽  
Technical Teaching

In the process of teaching, technical teaching facilities are both a content and a means of conveying information, they help the lecturer organize and control the students' cognitive activities, in addition, they also help students be interested in learning, practice practical skills from which to form active and creative learning methods. Teaching technology is one of the necessary conditions to help teachers carry out their related work of educating, teaching and bringing up, and intellectual development, arouse the inherent intelligence qualities of students. Currently, the management of technical teaching facilities at the Central Kindergartens College has been carried out on a regular basis and achieved certain results, but in fact, there are still many inadequacies. Finding a number of limitations in the management of teaching technical facilities, thereby proposing solutions to overcome those limitations, improve the efficiency of investment, preservation and use of teaching technical facilities in the trend of Industry Revolution 4.0, improving the quality of teaching at Central Kindergarten Pedagogy colleges in the current period is a very important and urgent task.

PENGARUH KONSENTRASI RAGI Saccharomyces cerevisiae DAN LAMA FERMENTASI TERHADAP KUALITAS CUKA TOMI-TOMI (Flacourtia inermis)

2015 ◽  
Vol 4 (2) ◽  
pp. 50-55
Author(s):  
Sandra J Nendissa ◽  
Rachel Breemer ◽  
Nikholaus Melamas
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Experimental Design ◽  
Total Dissolved Solids ◽  
Total Sugar ◽  
Dissolved Solids ◽  
Randomized Experimental Design ◽  
Two Factors ◽  
Four Levels

This objectives of this research were both to study and determine the best level of concentration of yeast Saccharomyces cereviseae and period of fermentation on the quality of tomi-tomi vinegar (Flacourtia inermis). A completely randomized experimental design with two factors of treatment was applied in this research. The first factor was concentration of yeast S. cereviseae having four levels of tretament, i.e.: without the addition of yeast 0.5, 1 and 1.5 g yeast. The second factor was period fermentation with 1, 2, 3, 4, and 5 weeks. The result indicated that the concentration of yeast S. cereviseae 1.5 g and period fermentation 5 week produced a good tomi-tomi vinegar with total acids 51.22%, total dissolved solids 8.35, total sugar 8.07% and pH 5.40.

The Implementation of Learning Materials Based on Local Wisdom of Agricultural in Binjai to Improve the Students Problem Solving Abilities

2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni
Keyword(s):  
Problem Solving ◽  
Control Group ◽  
School Grade ◽  
Teaching Materials ◽  
Quasi Experimental ◽  
Equivalent Control ◽  
The Subject ◽  
And Control ◽  
Experimental Group

Teaching materials by integrating local culture makes easier for students to understand the subject matter in the learning process. The aims of the study is to measure the effectiveness of teaching materials based on local wisdom of agriculture in Binjai in improving the students problem solving abilities. The research method was a quasi experimental which use non equivalent control group in the pretest posttest design. The sample of study were students of Senior High School grade X in Binjai that consisted of experiment group which used teaching materials based on local wisdom of agriculture in Binjai and control group that used student handbooks. Teaching materials are tested by material experts and technology experts to ensure the quality of teaching materials. Data collection was conducted through test. The results showed that the teaching materials based on local wisdom of agriculture in Binjai effective in improving students problem solving abilities in the experimental group students based on the results of N gain value was 0.67 which has medium criteria. It means teaching materials based on agricultural local wisdom of agriculture in Binjai can be used as one of the teaching materials in learning activities.

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