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The Tradition of Humanistic Consciousness in Marxian Materialism Wang, Zheng
Mediterranean Journal of Social Sciences Vol. 13 No. 2 (2022): March 2022
Publisher : Richtmann Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36941/mjss-2022-0012

Abstract

Traditionally, the researchers of Marx ignored the Epicurean roots for the maturation of Marxian thoughts, insisting that Marx was engaged in it only during his writing of the doctoral dissertation of 1841. Indeed, Epicurus played a decisive role in Marx’s subsequent works, although this reality is not explicitly mentioned. Epicurean atomism, through the theory of the declination of the atom, refers to a utilitarian consciousness for realizing human freedom and ethics. From the heretical tradition of humanism, Marx inherited Epicurean materialism as an important source of the “materialism of freedom”, a materialism that may be considered as a philosophy of emancipation. Besides the freedom of nature from which it ultimately derives, this Marxian idea also combines with that of Epicurus in terms of history: Marxian historiography is actually narrating history in the present, by which we can recall our lack of humanity. Received: 21 September 2021 / Accepted: 24 February 2022 / Published: 5 March 2022
Orderly charging strategy for electric vehicles based on multi-level adjustability Teng, Changlong; Ji, Zhenya; Yan, Peng; Wang, Zheng; Ye, Xianglei
International Journal of Renewable Energy Development Vol 13, No 2 (2024): March 2024
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2024.60053

Abstract

The development of electric vehicles (EVs) is one of the essential ways to reduce environmental pollution. With the rapid growth in EVs, an orderly charging strategy based on multi-level adjustable charging power is proposed to address the problem of increasing peak-to-valley difference due to disorderly charging in different scenarios. Based on the information of multi-level adjustable charging power, information about staying in the residential area, and charging demands of EVs, this research designs a centralized charging mode with complete information under the centralized scenario and a decentralized charging mode with incomplete information under the decentralized scenario. This research takes the minimization of peak-to-valley difference in the residential area as the objective function and considers that the charging pile can have the function of multi-level adjustable charging power to support these two scenarios. Two charging modes of the charging pile are designed, and orderly charging model of EVs in the residential area is constructed. EVs can select charging time and charging power by using Bluetooth or code scanning in the charging pile. This research aims to design two orderly charging modes to effectively implement peak shaving and valley filling while ensuring the charging demand of EVs. This research uses the CPLEX solver in MATLAB to solve the objective. The simulation results show that EVs can reasonably select the multi-level adjustable charging power under different scenarios and provide a reference for engineering related to orderly charging. Strategy 4, proposed in this research, has the lowest peak-to-valley difference of the four strategies. The peak-to-valley difference is only 87 kW under the centralized scenario, and the peak-to-valley difference is 282 kW under the decentralized scenario.
A bilevel zonal dispatch strategy considering electric vehicle users' demand response Ji, Zhenya; Zhang, Yuyang; Wang, Zheng; Liu, Lulu; Li, Hao
International Journal of Renewable Energy Development Vol 14, No 4 (2025): July 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.61159

Abstract

With the growing global energy crisis and environmental problems, the large-scale deployment of electric vehicles (EVs) and various types of distributed renewable energy sources has become an important measure to promote sustainable development in China's power sector. However, the rapid increase in the penetration rate of these distributed resources has gradually increased the operational pressure on distribution networks. To effectively address this issue, this paper proposes a two-layer partitioned optimization scheduling strategy for the distribution network layer and the aggregation layer, considering the price-based demand response of EV users. The upper distribution network layer focuses on its own low-carbon and economic operation, establishing a low-carbon economic optimization scheduling model for the distribution network layer to allocate global resources and formulate energy interaction strategies and constraints between aggregation areas based on this. The lower layer first constructs a comprehensive partitioning scheme considering the electrical distance between nodes, the dispatchable potential of EVs, and the power balance of distributed resources. Then, aiming at the economic operation of the aggregation area itself, it establishes a price-based demand response model for EV users to achieve optimal scheduling of distributed resources in the aggregation layer. This study aims to achieve the economic and low-carbon operation of distribution networks through reasonable scheduling strategies, while meeting the charging needs of EVs and improving the utilization efficiency of distributed resources. Simulation results show that the proposed two-layer scheduling strategy can effectively mobilize distributed resources in the distribution network to meet the needs of system economic operation. After optimization at the distribution network layer, the daily operating cost is reduced from 11,551.88 yuan to 6,220.84 yuan, significantly improving economic benefits. Electric vehicles have achieved a reduction of 21.1% in load peak shaving. In conclusion, the two-layer partitioned optimization scheduling strategy proposed in this paper can effectively utilize distributed resources in distribution networks, reduce operation costs, and achieve economic and low-carbon operation of distribution networks.
ESTIMATION OF MIXING AND TRANSFORMATION OF SOUTH PACIFIC WATER MASSES IN THE HALMAHERA SEA: ESTIMASI PERCAMPURAN DAN TRANSFORMASI MASSA AIR PASIFIK SELATAN DI LAUT HALMAHERA Aprilia, Jesikha Dwi; Naulita, Yuli; Nurjaya, I Wayan; Purwandana, Adi; Wang, Zheng
Jurnal Teknologi Perikanan dan Kelautan Vol 16 No 4 (2025): NOVEMBER 2025
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.16.440-452

Abstract

Laut Halmahera merupakan bagian dari jalur timur Indonesian Throughflow dan adalah wilayah kunci untuk interaksi dan transformasi massa air. Penelitian ini bertujuan untuk memperkirakan pencampuran vertikal dan menganalisis implikasinya terhadap transformasi massa air Pasifik Selatan di Laut Halmahera. Data yang digunakan adalah data observasi arsip dari Badan Riset dan Inovasi Nasional (BRIN), menggunakan profiler CTD dan pengukuran kecepatan arus vertikal pada Februari 2021. Estimasi percampuran dilakukan menggunakan analisis Thorpe untuk menghitung tingkat dispersi energi kinetik turbulen (ε) dan difusivitas Eddy vertikal (Kρ). Area pencampuran turbulen diidentifikasi pada kedalaman 50–300 m. Massa air S. Pasifik Selatan memiliki nilai salinitas maksimum 35,5 psu pada isopiknal σθ = 25,4, dan salinitas minimum 34,5 pada  isopiknal σθ = 26,5. Laut Halmahera di dekat Selat Obi mengalami perubahan salinitas maksimum pada isopiknal σθ = 25,5 dengan nilai 35,4 psu, sedangkan salinitas minimum pada σθ = 26 adalah 34,8 psu. Lapisan ini (σθ = 24–26), memiliki tingkat disipasi energi kinetik turbulen yang relatif tinggi (10-6 W/kg) dan difusivitas eddy vertikal (10-3 m2/s) yang menggambarkan transportasi Air Subtropis Pasifik Selatan (SPSW). Lapisan isopiknal σθ = 26–27 menunjukkan penurunan salinitas minimum, dengan ε pada ordo (10-7 W/kg) dan Kρ pada ordo (10-3 m2/s) di lapisan tengah dan dalam di dekat Selat Obi, menunjukkan pencampuran yang didorong oleh instabilitas geser yang terkait dengan zona disipasi energi gelombang internal.