scholarly journals Battery lifespan calculation and principles of design for low power mode

2019 ◽  
Vol 70 (1) ◽  
pp. 39-45
Author(s):  
Vladimír Levek ◽  
Pavel Šteffan
Keyword(s):  
Low Power ◽  
High Performance ◽  
Battery Life ◽  
Short Term ◽  
Specific Category ◽  
Power Mode ◽  
Design Requirements ◽  
Primary Focus ◽  
Principles Of Design

Abstract This paper addresses the issue concerning the design of battery-powered devices. In particular, it examines aspects affecting both short-term and long-term consumption. The primary focus of the paper is a low-power device powered by miniature batteries. From a broader perspective, it can also prove useful in designing devices powered by high-performance autonomous sources. The paper first identifies the basic design requirements with an emphasis placed on the key parameters of this specific category. The following chapters describe processing and circuit measures aimed at eliminating device consumption. The concluding part sums up the findings and presents some recommendations. The described methodology for the calculation of battery life has been experimentally validated and can be used to determine the battery lifespan in virtually any system.

scholarly journals “Is It Overtraining or Just Work Ethic?”: Coaches’ Perceptions of Overtraining in High-Performance Strength Sports

Sports ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 85
Author(s):  
Lee Bell ◽  
Alan Ruddock ◽  
Tom Maden-Wilkinson ◽  
Dave Hembrough ◽  
David Rogerson
Keyword(s):  
Physical Performance ◽  
Thematic Analysis ◽  
High Performance ◽  
Higher Order ◽  
Short Term ◽  
Semistructured Interviews ◽  
Diagnostic Symptoms ◽  
Careful Manipulation ◽  
Sport Coaches

Optimal physical performance is achieved through the careful manipulation of training and recovery. Short-term increases in training demand can induce functional overreaching (FOR) that can lead to improved physical capabilities, whereas nonfunctional overreaching (NFOR) or the overtraining syndrome (OTS) occur when high training-demand is applied for extensive periods with limited recovery. To date, little is known about the OTS in strength sports, particularly from the perspective of the strength sport coach. Fourteen high-performance strength sport coaches from a range of strength sports (weightlifting; n = 5, powerlifting; n = 4, sprinting; n = 2, throws; n = 2, jumps; n = 1) participated in semistructured interviews (mean duration 57; SD = 10 min) to discuss their experiences of the OTS. Reflexive thematic analysis resulted in the identification of four higher order themes: definitions, symptoms, recovery and experiences and observations. Additional subthemes were created to facilitate organisation and presentation of data, and to aid both cohesiveness of reporting and publicising of results. Participants provided varied and sometimes dichotomous perceptions of the OTS and proposed a multifactorial profile of diagnostic symptoms. Prevalence of OTS within strength sports was considered low, with the majority of participants not observing or experiencing long-term reductions in performance with their athletes.

scholarly journals Evaluation of Muscular Forces That Can be Applied to Flight Controls

2019 ◽  
Vol 63 (1) ◽  
pp. 141-145
Author(s):  
Dennis B. Beringer ◽  
Robert E. Joslin
Keyword(s):  
Flight Control ◽  
Reference Points ◽  
Age Group ◽  
Short Term ◽  
Aircraft Accidents ◽  
Flight Controls ◽  
Design Requirements ◽  
Control Forces ◽  
Rotary Wing

Excessive pilot flight-control forces have been identified as a causal factor in aircraft accidents, incidents, and anomalous events. However, the regulatory design requirements for fixed-wing and rotary-wing air-craft that are contained in the Code of Federal Regulations (CFR) have not been validated or updated in decades, and data for some specific situations were never included in the specifications. Results are presented for a recent study of over 300 participants categorized by gender, pilot/nonpilot status, and age group (10-year brackets from 18 through 69). Controls examined included sticks (left, center, right), yoke, rudder pedals (left, right), and helicopter collective. Results indicated that, on average, more than half of the sample could not achieve the short-term tabled forces used as reference points. However, more than half (60 to 87%) were able to sustain the prescribed long-term forces for 4 minutes or more in some control axes. It is recommended that reference tables both internal to the CFR and referenced by the CFR be modified to accommodate a larger percentage of the current user population.

scholarly journals High performance leadership in unusually challenging educational circumstances

2015 ◽  
Vol 3 (1) ◽  
pp. 28-49 ◽  
Author(s):  
Andy Hargreaves ◽  
Alma Harris
Keyword(s):  
High Performance ◽  
Educational Achievement ◽  
Limited Resources ◽  
Short Term ◽  
Past Performance ◽  
High Performing ◽  
The Face ◽  
Oecd Pisa ◽  
And Performance

This paper draws on findings from the results of a study of leadership in high performing organizations in three sectors. Organizations were sampled and included on the basis of high performance in relation to no performance, past performance, performance among similar peers and performance in the face of limited resources or challenging circumstances. The paper concentrates on leadership in four schools that met the sample criteria.  It draws connections to explanations of the high performance ofEstoniaon the OECD PISA tests of educational achievement. The article argues that leadership in these four schools that performed above expectations comprised more than a set of competencies. Instead, leadership took the form of a narrative or quest that pursued an inspiring dream with relentless determination; took improvement pathways that were more innovative than comparable peers; built collaboration and community including with competing schools; and connected short-term success to long-term sustainability.

CFD Based Multi-Disciplinary Optimization Design of High-Performance Deep Sea Seismic Vessel

2017 ◽  
Author(s):  
Mao Xiaofei ◽  
Zhang Wenxu ◽  
Qian Jiankui ◽  
Wu Minghao
Keyword(s):  
High Performance ◽  
Optimization Design ◽  
Optimal Solution ◽  
Solution Set ◽  
Short Term ◽  
Hull Form ◽  
Optimal Solution Set ◽  
Computational Fluid Dynamics Cfd ◽  
The Stability

This paper focuses on the application of a ship hull form multi-disciplinary optimization (MDO) system based on the computational fluid dynamics (CFD). Using the iSIGHT software, the MDO system integrates an automatic geometry transformation program and high-fidelity CFD solvers for different sub-disciplines. Hydrodynamics analysis subsystem includes resistance, seakeeping and stability modules. The resistance and seakeeping is analyzed by commercial potential-flow CFD codes, the stability is assessed by in-house code. The geometry variation output can be automatically used by the numerical solvers. By means of the design of experiment (DOE) technique, a neural network metamodel is trained to predict short term motion response of the derived ships efficiently. The system has been used in a seismic vessel’s hull form optimization to minimize the resistance and maximize the long term seakeeping operability index. Meanwhile, the stability in waves is concerned as a constraint. The hybrid MIGA-NLPQL optimization algorithm is applied for a global-to-local search in resistance optimization. For the synthesis optimization, a Pareto optimal solution set has been obtained and the final solution is achieved by trade-off analysis of the solution set. The entire automatic optimization process can be used for the preliminary design of new high performance vessels.

scholarly journals Low Power and High Performance MTCMOS Conditional Discharge Flip Flop

2019 ◽  
Vol 8 (6S2) ◽  
pp. 341-345
Keyword(s):  
Integrated Circuits ◽  
Low Power ◽  
High Performance ◽  
Leakage Power ◽  
Battery Life ◽  
Flip Flop ◽  
Circuit Performance ◽  
Processing Information ◽  
Conditional Discharge ◽  
Standby Mode

Utilization in high-performance integrated circuits has been one of the most severe limitations in models in recent years.. Conditional discharge flip flop (CDFF) related to one of the earliest pulses caused flipflop reduces internal switching activities as that of existing explicit pulse triggered Data close to output flipflop (Ep-DCO). Registers are the main parts for processing information eg: in counters, accumulators etc.,. Implementation of these registers using CDFF can achieve low power consumption and high performance. MTCMOS (multi threshold CMOS) technique saves the leakage power during standby mode operations and hence, enhances the circuit performance for long battery life applications. We find that, using both MTCMOS and conditional discharge technique in flip flop, improves the performance and also consumes low power. In this paper, we simulate CDFF and the proposed MTCMOS CDFF to prove that MTCMOS CDFF is the best among the fastest pulse triggered flipflops. We also implement an application 4 bit shift register using proposed MTCMOS conditional discharge flip flop

Implicit Cognitive Vulnerability through Nudges, Boosts and Bounces

2022 ◽  
Vol 6 (1) ◽  
pp. 0-0
Keyword(s):  
Conceptual Framework ◽  
Cognitive Vulnerability ◽  
Instructional Environment ◽  
Short Term ◽  
Theoretical Understanding ◽  
Community Environment ◽  
New Information ◽  
Motivational Support ◽  
Primary Focus

Implicit Cognitive Vulnerability is a developing theoretical understanding, wherein feeling safe within an instructional environment is of significant impact upon short-term and long-term memory’s cognitive acquisition of information so as to embed new information within a learner’s conceptual framework of understanding. Towards successfully individualizing a learner’s implicit cognitive vulnerability, the primary focus has been upon the larger community environment in which the learner is housed, yet the viability of the learner’s ability and cognitive viability must also be addressed through nudges, boosts and bounces of motivational support. Recognizing this individualized need of learners, this discussion revolves around the ability of a learner to embed implicit cognitive vulnerability within their own cognitive viability through structured and unstructured synchronous and asynchronous nudges and boosts that support self-regulatory and self-efficacy understandings.

Recommendations for Long-Term Operation of High-Performance Submersible Motor Pumps in Mine Dewatering

2020 ◽  
Author(s):  
David Beck ◽  
Sebastian Wulff ◽  
Paul Uwe Thamsen ◽  
Morris Reich ◽  
Jean Pierre Worringer
Keyword(s):  
High Performance ◽  
Initial Conditions ◽  
Mining Industry ◽  
Open Pit ◽  
Open Pit Mining ◽  
Short Term ◽  
Term Operation ◽  
Deep Wells ◽  
Submersible Motor

Abstract Modern submersible pumps are high performance aggregates for long-term operation, which find application in open-pit mining. Dewatering of groundwater to run an open-pit mine with various conditions for submersible pumps often leads to short-term performance based on different circumstances in the well as well as in the general operation. These result in high maintenance and energy costs and decreases the drawdown in open-pit mining. To ensure a long-time performance, a proper selection of submersible pump and motor is required. It is also necessary to consider the geometry of different deep wells in order to take into account the initial conditions of the pumps. This paper shows recommendations for long-term operation of high-performance submersible pumps due to the conditions of the mining industry. Therefore, a holistic consideration of the aggregate takes place to receive recommendations, which minimize the rate of pump failures and increase the efficiency of the dewatering process. These recommendations are based on various failures found during an investigation. Furthermore, this paper recommends different methods to prevent these failures, for instance clogging and erosion through particles in the well. These recommendations are linked to the research of different submersible motor pumps from various manufacturers in different wells in German open-pit mines with short-term operation caused by several circumstances.

Securitization in the Capital Markets Union

2018 ◽  
Author(s):  
Gerard Kastelein
Keyword(s):  
Capital Markets ◽  
Negotiation Process ◽  
Short Term ◽  
Market Participants ◽  
Capital Markets Union ◽  
Negative Effect ◽  
Commercial Paper ◽  
Application Date ◽  
Primary Focus

On 30 May 2017, the European Parliament, Council, and Commission reached a political agreement on the package of regulatory reforms of the European securitisation market. The package is aimed at facilitating the development of a securitisation market in Europe. The package represents the latest development of a negotiation process that started back in September 2015. The application date is expected to be 1 January 2019. Meanwhile, market participants have expressed uncertainties as to its effectiveness. This chapter considers the risk that the package will have a negative effect on the European securitisation market, resulting in further contraction. The primary focus of the chapter is on the rules on long-term securitisations as opposed to the short-term securitisations (asset-backed commercial paper).

scholarly journals Model of a Device-Level Combined Wireless Network Based on NB-IoT and IEEE 802.15.4 Standards for Low-Power Applications in a Diverse IoT Framework

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3718
Author(s):  
Juan Pablo García-Martín ◽  
Antonio Torralba
Keyword(s):  
Low Power ◽  
Ieee 802.15.4 ◽  
Link Quality ◽  
Battery Life ◽  
Personal Area Networks ◽  
Fifth Generation ◽  
Geographic Coverage ◽  
Machine Type Communications ◽  
Cluster Tree Topology

With the development of the Internet of Things (IoT), Low Data Rate-Personal Area Networks (LR-WPAN) have been deployed for different applications. Now comes the need to integrate these networks in search of greater connectivity, performances, and geographic coverage. This integration is facilitated by the recent deployment of low power wide area networks (LPWAN) in the licensed bands, especially narrowband IoT (NB-IoT) and long-term evolution for machine-type communications (LTE-M), which are standardized technologies that will continue evolving as part of the fifth generation (5G) specifications. This paper proposes a design methodology for combined networks using LR-WPAN and LPWAN technologies. These networks are combined at the device level using a cluster-tree topology. An example is shown here, where an existing IEEE 802.15.4 network is combined with NB-IoT. To this end, new dual nodes are incorporated, acting as cluster heads. The paper discusses the different aspects of formation and operation of the combined network. A dynamic link selection (DLS) algorithm is also proposed, based on which cluster headers dynamically determine the preferred link, depending on link quality and type of traffic. Extensive simulations show that the DLS algorithm significantly increases battery life on dual nodes, which are the nodes with the highest power demands.

scholarly journals Leadership of a High Performance Department

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Jed Smith
Keyword(s):  
Servant Leadership ◽  
High Performance ◽  
Work Load ◽  
Servant Leader ◽  
Short Term ◽  
Strength And Conditioning ◽  
The Relationship ◽  
Taking Care

In a service profession, such as the field of strength and conditioning, in the management of the athlete as well as the administration of the high performance sport development staff, servant leadership is necessary to effectively motivate performance through the wearisome day to day work load, which is of utmost importance for executing short term tasks, mid-range goals and in long-term mission completion.  Dierendonck (2011), describes servant leadership as displayed in the empowerment and the development of people, conveyed by authentically providing direction, demonstrating stewardship with the act of taking care of your staff and the organization, by being humble with the understanding that no work within the organization is beneath you, and through interpersonal acceptance, established by taking ownership of anything that will eventually go wrong.  A servant leader understands there is reciprocity in the strong affiliation with individuals within the organization and builds the relationship through trust and fairness. 

Sign in / Sign up

Export Citation Format

Share Document