scholarly journals Performance Metrics for Fluidic Soft Robot Rotational Actuators

2021 ◽  
Vol 8 ◽  
Author(s):  
Levi Rupert ◽  
Benjamin O. Saunders ◽  
Marc D. Killpack
Keyword(s):  
Performance Metrics ◽  
Soft Robotics ◽  
Soft Robot ◽  
Uncertain Environments ◽  
Comprehensive List ◽  
Design Integration ◽  
And Performance ◽  
And Control

The field of soft robotics is continuing to grow as more researchers see the potential for robots that can safely interact in unmodeled, unstructured, and uncertain environments. However, in order for the design, integration, and control of soft robotic actuators to develop into a full engineering methodology, a set of metrics and standards need to be established. This paper attempts to lay the groundwork for that process by proposing six soft robot actuator metrics that can be used to evaluate and compare characteristics and performance of soft robot actuators. Data from eight different soft robot rotational actuators (five distinct designs) were used to evaluate these soft robot actuator metrics and show their utility. Additionally we provide a simple case study as an example of how these metrics can be used to evaluate soft robot actuators for a designated task. While this paper does not claim to present a comprehensive list of all possible soft robot actuator metrics, the metrics presented can 1) be used to initiate the development and comparison of soft robot actuators in an engineering framework and 2) start a broader discussion of which metrics should be standardized in future soft robot actuator research.

scholarly journals A market approach to social value co-creation: Findings and implications from “Mageires” the social restaurant

2018 ◽  
Vol 19 (1) ◽  
pp. 27-45 ◽  
Author(s):  
Marianna Sigala
Keyword(s):  
Social Entrepreneurship ◽  
Performance Metrics ◽  
Social Value ◽  
Social Entrepreneurs ◽  
Business Partners ◽  
The Social ◽  
Market Approach ◽  
Market Practices ◽  
And Performance

Literature on social entrepreneurship provides a limited understanding of how to generate social value. The article expands on a “learning with the market” approach for developing a framework, explaining how social entrepreneurs can manage, get engaged with, form, and create (new) markets for co-creating social value and transformation. The applicability and implications of the framework are examined through a case study of a social restaurant (Mageires). Data collected from various restaurant stakeholders (customers, employees, suppliers, owners/founders, and other business partners) identified three market capabilities for generating social value and change: network structure (building networks with various stakeholders), market practices (e.g. institutionalization of “new currencies” for conducting economic transactions, adoption of ethical, flexible, and all inclusive recruiting practices), and market pictures (e.g. use of a common terminology and performance metrics and generation of stakeholders’ dialogues for creating intersubjective meanings).

scholarly journals A Tour of Reinforcement Learning: The View from Continuous Control

2019 ◽  
Vol 2 (1) ◽  
pp. 253-279 ◽  
Author(s):  
Benjamin Recht
Keyword(s):  
Reinforcement Learning ◽  
Linear Quadratic Regulator ◽  
Continuous Control ◽  
Linear Quadratic ◽  
Uncertain Environments ◽  
Optimization And Control ◽  
The Cost ◽  
Merging Techniques ◽  
And Control

This article surveys reinforcement learning from the perspective of optimization and control, with a focus on continuous control applications. It reviews the general formulation, terminology, and typical experimental implementations of reinforcement learning as well as competing solution paradigms. In order to compare the relative merits of various techniques, it presents a case study of the linear quadratic regulator (LQR) with unknown dynamics, perhaps the simplest and best-studied problem in optimal control. It also describes how merging techniques from learning theory and control can provide nonasymptotic characterizations of LQR performance and shows that these characterizations tend to match experimental behavior. In turn, when revisiting more complex applications, many of the observed phenomena in LQR persist. In particular, theory and experiment demonstrate the role and importance of models and the cost of generality in reinforcement learning algorithms. The article concludes with a discussion of some of the challenges in designing learning systems that safely and reliably interact with complex and uncertain environments and how tools from reinforcement learning and control might be combined to approach these challenges.

Winning Isn’t Everything: Examining the Impact of Performance Goals on Collegiate Swimmers’ Cognitions and Performance

1989 ◽  
Vol 3 (2) ◽  
pp. 105-132 ◽  
Author(s):  
Damon Burton
Keyword(s):  
Goal Setting ◽  
Performance Standards ◽  
Study Data ◽  
Performance Goals ◽  
Perceived Ability ◽  
And Performance ◽  
And Control ◽  
The Impact ◽  
Case Study Data

Sport psychologists believe that contemporary sport’s pervasive preoccupation with winning may actually be responsible for athletes’ anxiety, motivation, and self-confidence problems. Winning is a goal that lacks the flexibility and control necessary for athletes to (a) achieve consistent success and (b) take credit for success. Martens and Burton (1982) concluded that performance goals (PGs) based on attaining personal performance standards offer the flexibility and control needed to develop high perceived ability and performance. Thus the purpose of this study was twofold: (a) to evaluate whether a goal setting training (GST) program could teach athletes to set appropriate PGs, and (b) to assess the impact of the GST program on the perceived ability, competitive cognitions, and performance of collegiate swimmers. A collegiate swim team (N=30) participated in a season-long GST program, and program effects were systematically evaluated with a multimethod approach using interteam, intrateam, and case study data. Interteam and case study data generally supported both predictions. Intrateam analyses revealed that high-accuracy GST swimmers demonstrated more optimal cognitions and performance than low-accuracy teammates, suggesting that goal setting skill mediated GST effectiveness.

Soft Robotics in Medical Applications

2018 ◽  
Vol 03 (03n04) ◽  
pp. 1841006 ◽  
Author(s):  
Zion Tsz Ho Tse ◽  
Yue Chen ◽  
Sierra Hovet ◽  
Hongliang Ren ◽  
Kevin Cleary ◽  
...  
Keyword(s):  
Soft Tissues ◽  
Sensor Integration ◽  
Robotic Systems ◽  
Soft Robotics ◽  
Soft Robot ◽  
Future Directions ◽  
Power Sources ◽  
Regulatory Issues ◽  
And Control ◽  
Actuation Power

Soft robotics are robotic systems made of materials that are similar in softness to human soft tissues. Recent medical soft robot designs, including rehabilitation, surgical, and diagnostic soft robots, are categorized by application and reviewed for functionality. Each design is analyzed for engineering characteristics and clinical significance. Current technical challenges in soft robotics fabrication, sensor integration, and control are discussed. Future directions including portable and robust actuation power sources, clinical adoptability, and clinical regulatory issues are summarized.

scholarly journals Study of the Relationship between Strategic Human Resource Management and Firm Performance (Case Study: Iran Khodro Company)

2016 ◽  
Vol 11 (3) ◽  
pp. 38 ◽  
Author(s):  
Matin Jannatian
Keyword(s):  
Resource Management ◽  
Human Resource Management ◽  
Human Resource ◽  
Strategic Human Resource Management ◽  
Survey Method ◽  
Statistical Population ◽  
And Performance ◽  
And Control ◽  
The Relationship

Strategic human resource management is related to strategic and sustainable management and control of the most valuable assets of firm that are staffs working in it helping the company to achieve its goals. The purpose of this paper is to study the relationship between strategic human resource management and performance of Iran Khodro Company. Statistical population of this study includes all staff (54000 members) of Iran Khodro Company that 384 members were chosen out of them using Morgan table. A questionnaire with 28 items was used through survey method to collect data. To test hypotheses, Pearson test was used through SPSS-19 software. According to the obtained results of study, there is a positive relationship between dimensions of human resource management and performance of Iran Khodro Company.

Innovativeness and accounting practices: an empirical investigation

2018 ◽  
Vol 15 (2) ◽  
pp. 231-250 ◽  
Author(s):  
Margaret Healy ◽  
Peter Cleary ◽  
Eimear Walsh
Keyword(s):  
Performance Metrics ◽  
Structuration Theory ◽  
Integrated Approach ◽  
Content Type ◽  
Study Approach ◽  
Organisational Capabilities ◽  
And Performance ◽  
Development And Management

Purpose Innovation, the outcome of innovativeness, is a collaborative activity, requiring an integrated approach to the development and management of organisational capabilities (Tushman and Nadler, 1986), and therefore inextricably implicated in the accounting practices of organisations. Extant research however is not conclusive as to the influence of accounting practices on organisational innovativeness with some considering them enabling while others view them as restricting. This study aims to investigate the process of innovation as suggestive of a greater understanding of innovativeness as a dynamic organisational capability and therefore requiring greater consideration of the enabling conditions underpinning this. Design/methodology/approach Using a case study approach, and from the perspectives of three separate functionally specific organisational actors, this paper investigates the role of accounting practices in managing innovativeness within one high-technology organisation. Structuration theory is used as a lens through which the data collected are analysed. Findings Creative tensions (Simons, 2000) at the operational level between innovativeness and performance measurement are managed through the development of creative boundaries (“guide rails”), within which innovative solutions must be developed. Practical implications The findings support the assertion that the use of performance metrics (i.e. accounting practices) can support organisational innovativeness thereby potentially contributing to enhanced organisational performance. Originality/value Accounting metrics are simultaneously enabling and constraining, whereby the tension created from this dual functionality generates ways of empowering organisational capabilities for innovativeness throughout the organisation.

scholarly journals The Role of Activity-Based Costing for Assessing and Performance Accounting Costs System to Products Costing Pricing in Manufacturing Environment A case study applying on gadget co: دور أسلوب التكلفة على أساس النشاط لتقييم أداء النظام المحاسبي لتكلفة المنتجات وتسعيرها في بيئة التصنيع دراسة تطبيقية على شركة جاد للزجاج

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Ezzat Kamal Abdalla Mousa
Keyword(s):  
Decision Making ◽  
Performance Management ◽  
Manufacturing Cost ◽  
Activity Based Costing ◽  
Cost System ◽  
Abc Analysis ◽  
And Performance ◽  
The Cost ◽  
And Control

The study builds for accounting Activity-Based Costing (ABC) analysis supporting decision-making concerning product modularity and the accounting cost system for whether assessing performance to pricing basic and control to the product cost and allocate the activity. the paper aims to investigate the merits. of the Activity-Based Costing (ABC) as a method for assessing the cost consequences of better applied in modularization. This is done through a case study followed by reflections on how ABC (might) need to be developed to be able to serve as the relevant costing tool for assessing and performance in cost system and to whether allocate cost to each unit. The second aim some general rules on the cost efficiency of modularization from the case study the main problem study ABC is not sufficient enough to applying at any organization that may lower overhead costs. the result of this study The ABC provided the more accurate cost per unit as results good price, sales strategy, performance management and decision making that should be improved It provided much better insight into what drivers overhead costs. ABC recognizes that overhead costs are not all related to production and sale volume applying ABCTD in the manufacturing cost and to whether this more study about ABC in public sectors.

scholarly journals Control Strategies and Performance Assessment of Upper-Limb TMR Prostheses: A Review

Sensors ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 1953
Author(s):  
Federico Mereu ◽  
Francesca Leone ◽  
Cosimo Gentile ◽  
Francesca Cordella ◽  
Emanuele Gruppioni ◽  
...  
Keyword(s):  
Performance Metrics ◽  
Control Strategies ◽  
Surgical Techniques ◽  
Control Performance ◽  
Prosthetic Control ◽  
Targeted Muscle Reinnervation ◽  
And Performance ◽  
Definition Of ◽  
Evaluation Approaches

The evolution of technological and surgical techniques has made it possible to obtain an even more intuitive control of multiple joints using advanced prosthetic systems. Targeted Muscle Reinnervation (TMR) is considered to be an innovative and relevant surgical technique for improving the prosthetic control for people with different amputation levels of the limb. Indeed, TMR surgery makes it possible to obtain reinnervated areas that act as biological amplifiers of the motor control. On the technological side, a great deal of research has been conducted in order to evaluate various types of myoelectric prosthetic control strategies, whether direct control or pattern recognition-based control. In the literature, different control performance metrics, which have been evaluated on TMR subjects, have been introduced, but no accepted reference standard defines the better strategy for evaluating the prosthetic control. Indeed, the presence of several evaluation tests that are based on different metrics makes it difficult the definition of standard guidelines for comprehending the potentiality of the proposed control systems. Additionally, there is a lack of evidence about the comparison of different evaluation approaches or the presence of guidelines on the most suitable test to proceed for a TMR patients case study. Thus, this review aims at identifying these limitations by examining the several studies in the literature on TMR subjects, with different amputation levels, and proposing a standard method for evaluating the control performance metrics.

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