Understanding innovation of new energy industry: Observing development trend and evolution of hydrogen fuel cell based on patent mining

Zhou, Huijie; Dai, Jie; Chen, Xihui; Hu, Bin; Wei, Haoran; Cai, Huifen

doi:10.1016/j.ijhydene.2023.07.032

Cited by 38 publications

(3 citation statements)

References 42 publications

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“…For example, Zhang et al [6] used LDA to conduct technical evaluation and roadmap analysis in the blockchain field based on patent data and predicted future development trends. Zhou et al [7] used IPC joint analysis to map the hotspot knowledge map in the hydrogen fuel cell technology field and then identified hotspot technologies. Liu et al [8] further analyzed the development trend of technology in electric vehicle charging by analyzing high-frequency IPC classification numbers and their time distribution.…”

Section: Literature Reviewmentioning

confidence: 99%

Core Technology Topic Identification and Evolution Analysis Based on Patent Text Mining—A Case Study of Unmanned Ship

Lin,

Wang,

Yang

et al. 2024

Applied Sciences

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Accurate identification and evolutionary analysis of core technology topics within patent texts play a crucial role in enabling enterprises to discern the development trajectory of core technologies, optimize research and development (R&D) strategies, and foster technological innovation. Based on the perspective of time series dynamic analysis, this study uses the Latent Dirichlet Allocation (LDA) topic modeling and TF-IDF text vectorization methods to comprehensively mine and identify patent technology topics in the field of unmanned ships. This study deeply analyzes the dynamic evolution of unmanned ship technology topics from two aspects: the evolution of technology theme intensity and the evolution of technology theme content. We refine the development characteristics and future development directions of unmanned ship technology. The findings reveal two hot technologies, six growth technologies, and six declining technologies in unmanned ship technology. Furthermore, the analysis of technical topic evolution illustrates a pattern of fragmentation, inheritance, and integration. This study advances the methodologies used for identifying and analyzing patent technology topics and helps to grasp the development rules and evolutionary trends of core technologies. In addition, this paper has reference value for the research and practice of core technology topic identification and evolution analysis methods based on patent text mining.

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Section: Literature Reviewmentioning

confidence: 99%

Core Technology Topic Identification and Evolution Analysis Based on Patent Text Mining—A Case Study of Unmanned Ship

Lin,

Wang,

Yang

et al. 2024

Applied Sciences

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“…Most hydrogen is produced using fossil fuels, emitting 900 million tons of CO2 annually [55]. Green hydrogen, produced from renewable sources, is a favorable option but comes at a higher cost than gray hydrogen.…”

Section: Perspectives On the Existence Of Hydrogen In The Parecis Basinmentioning

confidence: 99%

The Tectonic Framework of Parecis Basin. Insights from a Multiphysics Interpretation Workflow

Loureiro,

Menezes,

Zalan

et al. 2024

Preprint

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The Parecis Basin is one of the largest intracratonic basins in Brazil. Despite its considerable size, the basin has yet to be extensively explored, with only five wildcat wells drilled for hydrocarbons. So far, no commercial discoveries have been announced. Regional studies have suggested Paleozoic sedimentation, while recent studies indicate a Neoproterozoic fill. However, no tectonic model accurately describes the basin’s development, and no detailed structural map for the entire basin has been published. The present work presents a new detailed structural map of the Parecis Basin based on a four-step interpretation workflow integrating seismic and gravimetric data. The first step includes converting the public 2D seismic lines to the depth domain. The second step is estimating the residual Bouguer anomaly, where the computed residual anomalies should relate to the basin’s tectonic features. The third step comprises the 2D forward modeling of the gravimetric anomalies using the 2D seismic interpretation as a constraint. The final step compiled all the interpreted features into our new structural map. This map reveals the top of the basement, forming a complex framework of horsts and grabens. Normal faults define the main structural style in the basin. Further, we could recognize thick, high-density bodies embedded in the crystalline basement. These bodies consist of Orosian-Calimian (1.8-1.6 Ga) mafic and ultramafic rocks, which may be a potential source for hydrogen exploration in the basin. Subsequent geophysical and geochemical surveys will assess the hydrogen potential in the area.

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“…Therefore, hydrogen fuel is regarded as an important energy carrier in the future. In the vehicle-power field, fuel cells are the main application scenario for hydrogen fuel, gaining a lot of technological progress in the last decades [4].…”

Section: Introductionmentioning

confidence: 99%

Semi-Solid Forging Process of Aluminum Alloy Connecting Rods for the Hydrogen Internal Combustion Engine

Wang,

Jiang,

Zhang

et al. 2024

Applied Sciences

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As an important piece of equipment for hydrogen energy application, the hydrogen internal combustion engine is helpful for the realization of zero carbon emissions, where the aluminum connecting rod is one of the key core components. A semi-solid forging forming process for the 7075 aluminum alloy connecting rod is proposed in this work. The influence of process parameters, such as the forging ratio, sustaining temperature, and duration time, on the microstructures of the semi-solid blank is experimentally investigated. The macroscopic morphology, metallographic structure, and physical properties of the connecting-rod parts are analyzed. Reasonable process parameters for preparing the semi-solid blank are obtained from the experimental results. Under the reasonable parameters, the average grain size is 41.48~42.57 μm, and the average shape factor is 0.80~0.81. The yield strength and tensile strength improvement ratio of the connecting rod produced by the proposed process are 47.07% and 20.89%, respectively.

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Understanding innovation of new energy industry: Observing development trend and evolution of hydrogen fuel cell based on patent mining

Cited by 38 publications

References 42 publications

Core Technology Topic Identification and Evolution Analysis Based on Patent Text Mining—A Case Study of Unmanned Ship

Core Technology Topic Identification and Evolution Analysis Based on Patent Text Mining—A Case Study of Unmanned Ship

The Tectonic Framework of Parecis Basin. Insights from a Multiphysics Interpretation Workflow

Semi-Solid Forging Process of Aluminum Alloy Connecting Rods for the Hydrogen Internal Combustion Engine

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