Digitalisation in wind and solar power technologies

Kangas, Hanna-Liisa; Ollikka, Kimmo; Ahola, Jero; Kim, Yoo-Jung

doi:10.1016/j.rser.2021.111356

Cited by 24 publications

(9 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We note the wide dynamic range between the different emission lines and the large difference in flux between the ejecta and ER (the ER spectrum has been multiplied by a factor 0.15 in the figure). The emission from the ER is strongly dominated by the western side (Figure 1), as noted in previous mid-IR (MIR) and NIR observations (Kangas et al 2022a;Matsuura et al 2022), as well as in optical and soft X-ray images (Frank et al 2016;Larsson et al 2019a).…”

Section: Spectra Of the Ejecta And Ersupporting

confidence: 82%

“…The shock interaction between the ejecta and the ER has produced bright multiwavelength emission since ∼5000 days post-explosion (e.g., McCray & Fransson 2016), but the IR, optical, and soft X-ray emission is currently fading (Fransson et al 2015;Larsson et al 2019a;Arendt et al 2020;Alp et al 2021;Kangas et al 2022a;Maitra et al 2022), signaling that the dense ER is being destroyed by the shocks and that the blast wave has passed through it (Fransson et al 2015). At the same time, the dense inner ejecta have continued their free expansion inside the ER, revealing a highly asymmetric distribution in increasingly greater detail over time.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock

Larsson

Fransson

Sargent

et al. 2023

ApJL

View full text Add to dashboard Cite

We present initial results from JWST NIRSpec integral field unit observations of the nearby supernova SN 1987A. The observations provide the first spatially resolved spectroscopy of the ejecta and equatorial ring (ER) over the 1–5 μm range. We construct 3D emissivity maps of the [Fe i] 1.443 μm line from the inner ejecta and the He i 1.083 μm line from the reverse shock (RS), where the former probes the explosion geometry and the latter traces the structure of the circumstellar medium. We also present a model for the integrated spectrum of the ejecta. The [Fe i] 3D map reveals a highly asymmetric morphology resembling a broken dipole, dominated by two large clumps with velocities of ∼2300 km s−1. We also find evidence that the Fe-rich inner ejecta have started to interact with the RS. The RS surface traced by the He i line extends from just inside the ER to higher latitudes on both sides of the ER with a half-opening angle ∼45°, forming a bubble-like structure. The spectral model for the ejecta allows us to identify the many emission lines, including numerous H2 lines. We find that the H2 is most likely excited by far-UV emission, while the metal-line ratios are consistent with a combination of collisional excitation and recombination in the low-temperature ejecta. We also find several high-ionization coronal lines from the ER, requiring a temperature ≳2 × 106 K.

show abstract

Section: Spectra Of the Ejecta And Ersupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock

Larsson

Fransson

Sargent

et al. 2023

ApJL

View full text Add to dashboard Cite

show abstract

“…As digitalization is a widely described topic [52,86,87], it is perfectly understandable that in 50% of job offers, knowledge and usage of MS Office and other back-office software are required.…”

Section: Discussionmentioning

confidence: 99%

Employer Expectations Regarding the Competencies of Employees on the Energy Market in Poland

et al. 2021

View full text Add to dashboard Cite

It is because of competencies that there is a possibility of ensuring the strategic safety of each country when it comes to energy security. With the vast development of IT and teamwork, there are various competencies needed in the whole energy sector. The aim of this study is to assess the needs of competencies in the Polish energy labor market as well as the trends among hard ad soft skills also in the context of renewable energy sources. Within an exploratory approach, 245 job advertisements were analyzed using various tools, including general descriptive statistics, Shapiro-Wilk, Kruskal–Wallis H and Mann–Whitney U tests, as well as Spearman’s Rho. The research confirmed that teamwork and MS Office are crucial demands of employers. It is also important that the market is diverse when it comes to competence demands, but soft skills are needed in every position, even purely technical ones.

show abstract

“…For example, Son and Cho (2020) conducted an IPC code cooccurrence network analysis of PV patents over a 15-year period to analyse technology fusion in the PV industry in South Korea and demonstrated that the structural pattern of fusion has been diversified or decentralized over time; the emergence of new combinations of unrelated technologies in the solar domain at the regional level was explored to prove that unrelated technologies are more likely to be recombined when they are strongly colocated in the same region (Li et al, 2020). Kangas et al (2021) studied the technological convergence between information and communication technology (ICT) and solar energy. They found that the development of basic technologies has been even faster than the development of solar PV ICT solutions.…”

Section: Innovation Study Of Solar Energy Technologymentioning

confidence: 99%

Radical innovation detection in the solar energy domain based on patent analysis

Feng

Fang

2023

Front. Energy Res.

View full text Add to dashboard Cite

Introduction: Detecting radical innovations in the solar energy domain could offer innovation references and support the promotion of solar energy. However, relevant studies in the solar energy domain are lacking, and the related methods need to be improved.Methods: In this paper, a new framework to identify radical innovations in the solar energy domain is proposed by combining a technological convergence study and scientific relation analysis, and the link prediction method is utilized to detect potential radical innovations in this domain.Results: 1) The distributions of both the technological classes and scientific categories are uneven in the solar energy domain. The top 15 technological classes account for nearly 75.46% of all classifications. Fifteen scientific categories are cited by all the patents, and applied physics, multidisciplinary material science, energy and fuels play important roles in this domain. 2) The relationships among technological classes have evolved over time and have mainly focused on neighbouring disciplines. 3) A total of 130 patents containing new convergence relationships and/or closely related to science are identified as radical innovations. Radical innovative topics are related to the subdomains of solar photovoltaic (solar PV), heat storage, heat exchangers, and solar collectors. 4) Five potential radical innovative topics are identified. Automatic plants for producing electric energy, solar energy ecology houses, and so on are considered to have great potential in the future.Discussion: The results are consistent with the authoritative report and previous studies, which verify the viability of our methods. And the findings have important implications for scientists, policy-makers, and investors in this domain.

show abstract

Digitalisation in wind and solar power technologies

Cited by 24 publications

References 26 publications

JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock

JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock

Employer Expectations Regarding the Competencies of Employees on the Energy Market in Poland

Radical innovation detection in the solar energy domain based on patent analysis

Contact Info

Product

Resources

About