scholarly journals Modeling exponential decay in maximum capacitance across specified flight patterns in small aircraft

2020 ◽  
Vol 12 (1) ◽  
pp. 11
Author(s):  
Pete Rigas Rigas ◽  
Chetan Kulkarni
Keyword(s):  
Electric Propulsion ◽  
Thermal Strain ◽  
The State ◽  
State Of Charge ◽  
Accurate Estimation ◽  
Health State ◽  
Mission Success ◽  
Starting Point ◽  
Parasitic Load ◽  
The Impact

With increased autonomy being an integral part of un- manned aerial system (UAS), during flight a vehicle needs to have an accurate estimation of its state of health and capabilities to perform and achieve mission success with utmost safety. Batteries are of key importance in electric-propulsion aircraft and are its most pertinent re- source. It is important to know the state of charge of the battery not only because the health state is directly re- lated to the flight profiles flown by the vehicle, but also because the state of charge of the vehicle and its opera- tional condition must be estimated after each flight. In this work a methodology is presented to generate pre- dictions for flight plans that experience anomalies, or un- expected system failure in due to a parasitic load in a specified stage of the flight that must return to its starting point of origin. We begin by describing the procedures by which a sequence of steps will be carried out to expo- nentially weigh the impact of different stages of a flight towards thermal strain on the capacitance Cmax of the battery during each flight.

The Developmental State

2019 ◽  
pp. 71-100
Author(s):  
Luis Eslava
Keyword(s):  
Twentieth Century ◽  
International Law ◽  
Developmental State ◽  
The State ◽  
The South ◽  
Post Colonial ◽  
Institutional Formation ◽  
Complex Process ◽  
Starting Point ◽  
The Impact

The battle for international law during the era of decolonization in the mid-twentieth century was to a large extent a battle fought over the nature, function and objectives of the state—above all, over their relationship to the idea of ‘development’. A particular normative and institutional formation resulted from this battle: the ‘developmental state’, the impact of which on (in)dependence in the South was and continues to be profound. However, the ‘developmental state’ did not spring ready-made out of nowhere. On the contrary, using Latin America’s much earlier experience of colonialism, decolonization and independent statehood as a starting-point, this chapter draws attention to the long and complex process through which the developmental state’s most important elements emerged, defining what was thinkable and doable there and elsewhere in the post-colonial world.

Modeling and Estimation for Advanced Battery Management

2019 ◽  
Vol 2 (1) ◽  
pp. 393-426 ◽  
Author(s):  
Xinfan Lin ◽  
Youngki Kim ◽  
Shankar Mohan ◽  
Jason B. Siegel ◽  
Anna G. Stefanopoulou
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
The State ◽  
Consumer Electronics ◽  
Accurate Estimation ◽  
Health State ◽  
Battery Management ◽  
Space Applications ◽  
Internal States ◽  
State Of Power

The commercialization of lithium-ion batteries enabled the widespread use of portable consumer electronics and serious efforts to electrify trans-portation. Managing the potent brew of lithium-ion batteries in the large quantities necessary for vehicle propulsion is still challenging. From space applications a billion miles from Earth to the daily commute of a hybrid electric automobile, these batteries require sophisticated battery management systems based on accurate estimation of battery internal states. This system is the brain of the battery and is responsible for estimating the state of charge, state of health, state of power, and temperature. The state estimation relies on accurate prediction of complex electrochemical, thermal, and mechanical phenomena, which increases the importance of model and parameter accuracy. Moreover, as the batteries age, how should the parameters of the model change to accurately represent the performance, and how can we leverage the limited sensor information from the measured terminal voltage and sparse surface temperatures available in a battery system? With a frugal sensor set, what is the optimal sensor placement? This article reviews estimation techniques and error bounds regarding sensor noise and modeling errors, and concludes with an outlook on the research that will be necessary to enable fast charging, repurposing of batteries for grid energy storage, degradation prediction, and fault detection.

scholarly journals The Impact of COVID-19 Crisis upon the Consumer Buying Behavior of Fresh Vegetables Directly from Local Producers. Case Study: The Quarantined Area of Suceava County, Romania

2020 ◽  
Vol 17 (15) ◽  
pp. 5485 ◽  
Author(s):  
Alina Butu ◽  
Ioan Sebastian Brumă ◽  
Lucian Tanasă ◽  
Steliana Rodino ◽  
Codrin Dinu Vasiliu ◽  
...  
Keyword(s):  
Sociodemographic Factors ◽  
The State ◽  
Buying Behavior ◽  
State Of Emergency ◽  
Purchasing Intention ◽  
Starting Point ◽  
Fresh Vegetables ◽  
Before And After ◽  
The Impact ◽  
Consumer Buying Behavior

The present paper intends to address the impact of COVID-19 crisis upon the consumer buying behavior of fresh vegetables directly from local producers as observed 30 days later, after enforcing the state of emergency in Romania within a well-defined area, namely, the quarantined area of Suceava. The study relies on the interpretation of answers received from the quarantined area (N = 257) to a questionnaire applied online nationwide. The starting point of this paper is the analysis of the sociodemographic factors on the purchasing decision of fresh vegetables directly from local producers before declaring the state of emergency in Romania (16 March 2020). Further research has been conducted by interpreting the changes triggered by the COVID-19 crisis on the purchasing intention of such products before and after the end of the respective crisis. The aim of this scientific investigation relies on identifying the methods by which these behavioral changes can influence the digital transformation of short food supply chains.

scholarly journals Evaluation of the State of Charge of a Solid/Liquid Phase Change Material in a Thermal Energy Storage Tank

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1425 ◽  
Author(s):  
Gabriel Zsembinszki ◽  
Christian Orozco ◽  
Jaume Gasia ◽  
Tilman Barz ◽  
Johann Emhofer ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Residential Buildings ◽  
The State ◽  
State Of Charge ◽  
Accurate Estimation ◽  
Change Material

Monitoring of the state of charge of the thermal energy storage component in solar thermal systems for space heating and/or cooling in residential buildings is a key element from the overall system control strategy point of view. According to the literature, there is not a unique method for determining the state of charge of a thermal energy storage system that could generally be applied in any system. This contribution firstly provides a classification of the state-of-the-art of available techniques for the determination of the state of charge, and secondly, it presents an experimental analysis of different methods based on established sensor technologies, namely temperature, mass flow rates, and pressure measurements, tested using a lab-scale heat exchanger filled with a commercial phase change material for cooling applications. The results indicate that, depending on the expected accuracy and available instrumentation, each of the methods studied here can be used in the present application, the deviations between the methods generally being below 20%. This study concludes that a proper combination of two or more of these methods would be the ideal strategy to obtain a more reliable and accurate estimation of the state of charge of the latent heat thermal energy storage.

scholarly journals Research on the State of Charge of Lithium-Ion Battery Based on the Fractional Order Model

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6307
Author(s):  
Lin Su ◽  
Guangxu Zhou ◽  
Dairong Hu ◽  
Yuan Liu ◽  
Yunhai Zhu
Keyword(s):  
Kalman Filter ◽  
Fractional Order ◽  
Colored Noise ◽  
Unscented Kalman Filter ◽  
The State ◽  
State Of Charge ◽  
Accurate Estimation ◽  
Order Model ◽  
Discrete State ◽  
Fractional Order Model

Accurate estimation of the state of charge (SOC) of lithium batteries is paramount to ensuring consistent battery pack operation. To improve SOC estimation accuracy and suppress colored noise in the system, a fractional order model based on an unscented Kalman filter and an H-infinity filter (FOUHIF) estimation algorithm was proposed. Firstly, the discrete state equation of a lithium battery was derived, as per the theory of fractional calculus. Then, the HPPC experiment and the PSO algorithm were used to identify the internal parameters of the second order RC and fractional order models, respectively. As discovered during working tests, the parameters identified via the fractional order model proved to be more accurate. Furthermore, the feasibility of using the FOUHIF algorithm was evaluated under the conditions of NEDC and UDDS, with obvious colored noise. Compared with the fractional order unscented Kalman filter (FOUKF) and integer order unscented Kalman filter (UKF) algorithms, the FOUHIF algorithm showed significant improvement in both the accuracy and robustness of the estimation, with maximum errors of 1.86% and 1.61% under the two working conditions, and a terminal voltage prediction error of no more than 5.29 mV.

scholarly journals Influence of Occupant Behaviour on the State of Charge of a Storage Battery in a nearly-Zero Energy Building

2020 ◽  
Vol 172 ◽  
pp. 16010
Author(s):  
Pedro F. Pereira ◽  
Nuno M. M. Ramos
Keyword(s):  
Energy Storage ◽  
Second Life ◽  
Storage Systems ◽  
The State ◽  
State Of Charge ◽  
Occupant Behaviour ◽  
Zero Energy ◽  
Electrical Vehicle ◽  
The Impact

The development of nearly zero energy buildings (nZEB) is a goal being set for many countries for the next years. In order to achieve that goal, on-site energy generation is needed, and the use of photovoltaic and storage systems is a possible strategy. Hence, the objective of this work is to evaluate the impact that occupant behaviour has on the batteries energy storage systems (BESS) of an nZEB. This study considers as a case study an nZEB with lightweight construction, located in the university campus, and used by different occupants. The case study has 12 PVs located on the root and a second-life BESS from an electrical vehicle (EV). The monitoring system consists of interior T, RH, CO2 and energy sensors and an exterior on-site meteorological station. The research started with a state of the art review of the support policies for the on-site photovoltaic generation and energy storage. Different storage charge profiles were obtained as different occupant behaviours were applied to the test building. In total, it were considered three occupant profiles and a base scenario was the unoccupied. The occupant behaviour showed to be determinant in the state of charge of the BESS independently from the impacts in the indoor temperature. The need to know the profile of the occupants before the design of the buildings was enhanced.

Features of financial and legal regulation of public relations in the context of mitigating economic consequences in the fight against the COVID-19 pandemic

2021 ◽  
pp. 670-677
Author(s):  
Anna V. Savina
Keyword(s):  
Public Relations ◽  
Small Businesses ◽  
Legal Regulation ◽  
The State ◽  
Economic Consequences ◽  
Modern World ◽  
Special Role ◽  
Role Of The State ◽  
Starting Point ◽  
The Impact

The relevance of this study is due to the fact that in the modern world, including Russian, law and order, a special mechanism of “anti-crisis regulation” is being transformed, which in the context of a pandemic has be-come heterogeneous, with a permanent convergence of the norms of private and public law. Proceeding from the fact that anti-crisis regulation is pre-dominantly part of the state policy in a particular area, it is proposed to un-derstand that the epidemiological crisis itself is the starting point for other crisis phenomena (financial, demographic and other crises), the prevention or reduction of the impact of which is the most important task of any state. We consider the relevant aspects of crisis management. We analyze the catego-ries of countercyclical and pro-cyclical regulation, investigated the issues of fiscal policy. We pay attention to behavioral economics and the role of the state in its functioning. We note that the directions of spending budget funds in one way or another depend on the behavioral economy, which is not al-ways manageable. We provide an analysis of the concept of “choice architecture” in the aspect of a “push” decision-making mechanism, in which a special role is assigned to the state. We emphasize the growing importance of financial programs to support small businesses or citizens wishing to become individual entrepreneurs, self-employed.

Perception of Corporate Social Responsibility by the Employees

2015 ◽  
pp. 51-72
Author(s):  
Zlatko Nedelko ◽  
Vojko Potocan
Keyword(s):  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Social Issues ◽  
The State ◽  
Economic Outcomes ◽  
Empirical Survey ◽  
Starting Point ◽  
Corporate Social ◽  
The Impact ◽  
Insight Into

The main purpose of this chapter is to examine the relationships between three underlying aspects of Corporate Social Responsibility (CSR), namely economic, environmental, and societal aspects, and the level of CSR, as perceived by the employees. The strength and direction of the impact of a single underlying aspect of CSR, on the level of CSR in organizations, is examined through a sample of 288 employees in Slovenian organizations. Results from the empirical survey suggest that employees' higher concern for environmental and social issues increases the level of organizational CSR, while higher striving for solely economic outcomes lowers the level of organizational CSR. Findings in this chapter provide insight into the state of CSR in organizations as perceived by the employees, providing an important starting point for definition or re-thinking of strategies in relation to CSR, and as a starting point for other actions as well, like changes in academia.

scholarly journals DIREITO À SAÚDE E PODER JUDICIÁRIO: decisões no âmbito do Tribunal de Justiça do Estado do Maranhão

2013 ◽  
Author(s):  
Ana Karolyne Araújo de Sousa ◽  
Laurena Silva Pinto ◽  
Mônica Teresa Costa Sousa
Keyword(s):  
Right To Health ◽  
The State ◽  
Health State ◽  
The Public ◽  
Politica Publica ◽  
Treatment Medication ◽  
The Individual ◽  
Reasons For Decisions ◽  
The Right ◽  
The Impact

O trabalho tem por objetivo principal analisar decisões judiciais do TJMA considerando demandas individuais relacionadas à efetivação e garantia do direito à saúde, a partir da oferta de tratamento médico/ medicamento específico por parte do Estado. Analisa-se a fundamentação das decisões e atuação do Poder Judiciário ante a defesa justificada como "reserva do possível" por parte do ente público. Com base na teoria da reserva do possível, o Estado defende-se alegando ser impossível a prestação de serviços específicos considerando ou a generalidade da política pública de saúde ou questões financeiras. Por sua vez, o Judiciário se manifesta ora considerando a pretensão individual (posicionamento mais comum) ora afastando essa possibilidade. Tomando por base decisão do Supremo Tribunal Federal, determinaram-se padrões mínimos para que as decisões sejam capazes de atender as demandas específicas sem que haja comprometimento da atividade generalizada por parte do Estado. A escolha das decisões foi realizada por meio de pesquisa junto ao sítio oficial do Tribunal de Justiça do Estado do Maranhão considerando os termos "saúde - Estado - reserva do possível". As decisões analisadas referem-se aos últimos cinco anos. Já as decisões de tribunais superiores foram analisadas tomando-se como base os mesmos termos de procura bem como a repercussão da decisão STA 175, de 2009, cujo relator foi o Min. Gilmar Mendes.Palavras-chave: Direito à saúde. Reserva do possível. Poder Judiciário. Estado.HEALTH LAW AND JUDICIARY: decisions in the Court of Maranhão StateAbstract: The study aims to at analyzing the judgments TJMA considering individual claims related to the execution and guaranteeing the right to health, from the offer of medical treatment / medication specific for the state. Analyze the reasons for decisions and actions of the judiciary before the defense justified as "possible reserves" by the public entity. Based on the theory of reserve for the state defends itself saying it is impossible to provide specific services or considering the general public health policy or financial matters. In turn, the judiciary is manifested sometimes claim considering the individual (most common position) now that possibility away. Based on the decision of the Supreme Court, it was determined minimum standards for decisions to be able to meet the specific demands without compromising the widespread activity by the state. The choice of the decisions was conducted through survey to the official Court of the State of Maranhão considering the terms "health - state - reserve the possible." The decisions analyzed refer to the last five years. Since the decisions of higher courts were analyzed taking as base the same search terms as  well as the impact of the decision STA 175, 2009, which was the rapporteur Justice Gilmar Mendes.Keywords: Right to health. Possible Reservation. The Judiciary Power. State.EL PODER JUDICIAL Y EL DERECHO A LA SALUD: decisiones en la esfera del Tribunal de Justicia del estado de MaranhãoResumen: El trabajo tiene como objetivo analizar decisiones en juicios del TJMA considerando reclamaciones individuales relacionadas con la ejecución y garantía del derecho a la salud, a partir de la oferta de tratamientomédico / medicamento específico por el estado. Analizar las razones de las decisiones y acciones del poder judicial ante defensas justificadas como "reservas posibles" por la entidad pública. Sobre la base de la teoría de la reserva posible, el Estado se defiende diciendo que es imposible proporcionar servicios específicos, considerando la política general de salud pública o los asuntos financieros. Por su parte, el Poder Judicial se manifiesta a veces considerando la posición individual (posición más común) y otras veces desconsiderándola. Sobre la base de la decisión de la Corte Suprema de Justicia, se definieron las normas mínimas para que las decisiones sean capaces de satisfacer las demandas específicas sin comprometer la actividad generalizada por el estado. La elección de las decisiones se llevó a cabo mediante una encuesta oficial a la Corte del Estado de Maranhão, teniendo en cuenta los términos "salud - estado -. Reserva de lo posible" Las decisiones analizadas se refieren a los últimos cinco años. Por otro lado, las decisiones de los tribunales superiores fueron analizadas tomando como base los mismos términos de búsqueda, así como el impacto de la decisión STA 175 de 2009, relatada por el Ministro de la Justicia Gilmar Mendes.Palabras clave: Derecho a la salud. Reserva posible. Poder Judicial. Estado.

scholarly journals Li-Ion Cell Safety Monitoring Using Mechanical Parameters: Part I. Normal Battery Operation

2022 ◽  
Author(s):  
Angel Kirchev ◽  
Nicolas guillet ◽  
David Brun-Buisson ◽  
Vincent Gau
Keyword(s):  
Strain Gauge ◽  
Lithium Ion ◽  
The State ◽  
State Of Charge ◽  
Normal Operation ◽  
Thermal Shrinkage ◽  
Cell Diameter ◽  
Deformation Pattern ◽  
Discharge Process ◽  
The Impact

Abstract The normal operation of a 18650 Lithium-ion cells has been monitored using rectangular rosette strain gauge and a pair of piezoelectric transducers. The sensors for mechanical measurements provide information about the cell deformation mechanism and electrodes structure during the cycling. The strain gauge signal revealed three type of mechanical processes. The predominant deformation pattern during galvanostatic discharge process is an isotropic cylindrical shrinkage relevant to the extraction of lithium ions from the graphite negative electrode. In the case of low-rate discharge in cyclic voltammetry mode, the deformation pattern changes to spherical growth when the state of charge falls below 40. In contrast, the thermal shrinkage and growth of the cell corresponds to simple decrease of the cell diameter with much smaller hysteresis effect. The ultrasound interrogation is able to detect repeatable progressive change of the acoustic waveform transferred across the cell in direction of the jellyroll diameter, which depends on the state of charge and does not undergo any significant changes at different cycling rates. The impact of the state of health under 2h – rated charge/discharge cycling at 25°C reveals slow progressive drift of the strain and acoustic signals corresponding to the growth of the cell size.

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