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The main objective of the paper was to determine the significance of particular methods of supporting women's entrepreneurship in Greater Poland. Five groups of such support have been identified: socio-cultural, promotional and informational, financial, institutional, consulting and training. This led to identifying gaps in existing support and to finding the most significant support for entrepreneurial women. The study revealed a discrepancy between the assessment carried out by experts, students and women entrepreneurs. Owners of enterprises’ opinions show that the available forms of support are not as useful as it might seem from the perspective of researchers and potential owners. There are also forms of support that are not used by the female owners.

The purpose of this study is to investigate science teacher identity development as climate change educators. In applying the theoretical construct of identity as narrative to investigate the climate change related instructional experiences, I posed the overarching question: How do teachers’ lived experiences shape their science teacher identity development as a ‘teacher of climate change’? ☐ I used qualitative narrative inquiry methods to examine professional and personal stories of science teachers and their descriptions of instructional enactment of climate change lessons. I described the ways in which teachers draw on aspects of their teaching identity to navigate the opportunities and challenges encountered while teaching this controversial and complex, yet critically important science topic. I collected empirical data to form insights regarding how teachers negotiate competing demands while planning, implementing, and reflecting on their instruction. Data sources included multiple interviews with each teacher and teacher reflections. ☐ In analyzing the collected data, I determined how the identity narratives play a role in their enactment of climate change instruction. Results demonstrate how identity development for teaching climate change is embedded in one’s personal histories, professional teaching and learning experiences, and the political context. Through this process, I developed a conceptual model to show how these lived experiences influence patterns of identity development through five trends: Personal Valuation of Nature; Experiences in Science Teaching and Learning; Teacher Instructional Support and Agency; Epistemic Evidence-based Instruction; and Civic and Social Awareness via Socioscientific Literacy. The strength of enactment of these five trends leads to four possible constructions of identity. These four identities are: Passionate Environmentalist, Student Interest Engager, Content First Educator, and Civic & Epistemic Skills Promoter. ☐ The findings suggest that teacher identities for climate change are frequently multifaceted and these various identities are usually cohesive within an individual, but at times, they may present competing tensions for enactment. Additionally, this study demonstrates the critical need to support educators to strengthen their perceptions of instructional agency to effectively overcome challenges to the enactment of climate change lessons. Implications for teaching, teacher education, educational policy, and educational research related to climate change education and science teacher identity development are also presented.

ABSTRACT: Charging infrastructure supports the rapid development of China's new energy vehicle industry. It not only plays a decisive role in providing accessible and convenient services for electric vehicle (EV) users but also, in one of the seven new infrastructure areas, plays an important role in stabilizing growth and unleashing economic potential during the new coronavirus (COVID-19) pandemic, impacting China's economy. In this study, the system dynamics model was used to predict the development of the EV industry and the demand for charging infrastructure, while considering the influence of policy, increase in EV mileage, and consumer purchase intention index. Furthermore, using the matching of EVs and charging infrastructure in Beijing and policy-oriented sensitivity analysis, a simulation of the construction of battery swap taxis and power stations under three policy scenarios was conducted. This research shows that with policies implemented to support charging infrastructure and swapping compatible taxis, Beijing can achieve its goal of replacing all EVs with fast-swap batteries and fast-charging functions within three years.

Abstract The present paper examines the phenomenon of energy poverty in Greece. Specifically, energy poverty concerns a growing number of households that have limited access to energy or are unable to pay for this energy, mainly due to insufficient thermal insulation, low income and high energy costs. The continuing economic crisis in Greece has increased the rate of energy poverty as incomes have fallen, the price of oil and PPC tariffs have risen, more households are asked to pay more than 20% of their energy bill income. Excessive energy poverty in turn has an impact on the environment (illegal logging, smog, etc.), but also to the physical and mental health of people exposed to it. The paper includes a case study which provides information and data collected from a sample of 384 households using the questionnaire method in four areas of northern Greece, which is the Edessa area in Central Macedonia, the area of Drama in Eastern Macedonia, the area of Xanthi and the Municipality of Myki (Pomakohoria) in Thrace. Initially, personal data, housing characteristics and household health status are presented. The types of heating system of the examined households and the extent to which they meet the required levels of thermal comfort are presented below. In addition, the aforementioned data is associated with the energy accounts. The findings, show that energy poverty has affected a significant proportion of households in Greece. This is due to the fact that there are households that do not meet the energy needs of their home.

Abstract The equation for the temperature distribution in a uranium rod under transient conditions is subjected to the finite Hankel transform, to produce a formal relationship between the physical parameters of rate of heat production, rate of heat removal and the temperature at any point in the rod. The form of solution is then applied to find the changes in uranium surface and centre temperatures following arbitrary changes in the rates of heat production and heat removal. The method is an inverse one in that arbitrary forms are assumed for a function φ(t) which is introduced into the equations, and the resulting variations of uranium temperature and rates of heat production and removal are examined. Within this limitation, however, the temperature and reactivity changes within the reactor can be determined for a short period of time following a disturbance, during which the relatively small thermal capacity of the uranium makes it the dominating variable.

Editorial Complex Optimization and Simulation in Power Systems

In order to achieve paramount economy, hybrid renewable energy sources are gaining importance, as renewable sources are costless. Over the past few years wind energy incorporation drew more consideration in the electricity market, as wind power took an affirmative role in energy saving as well as sinking emission pollutants. Recently developed Grey wolf optimizer (GWO) algorithm has conspicuous behavior for verdicting global optima, without getting ensnared in premature convergence. In the proposed research the exploitation phase of the grey wolf optimizer has been further improved using random exploratory search algorithm, which uses perturbed solutions vectors along with previously generated solution vectors. The paper presents a hybrid version of Grey Wolf Optimizer algorithm combined with random exploratory search algorithm (hGWO-RES) for the solution of combinatorial scheduling and dispatch problem of electric power systems. To validate the feasibility of the algorithm, the proposed algorithm has been tested on 23 benchmark problems. To verify the feasibility and efficacy of operation of proposed algorithm on generation scheduling and dispatch of electric power systems, small and medium scale power systems consisting of 7-, 10-, 19-, 20- and 40-generating units systems taken into consideration. Commitment and scheduling pattern has been evaluated with and without wind integration and it has been experimentally founded that proposed hybrid algorithm provides superior solution as compared to other recently reported meta-heuristics search algorithms.