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Articles by Chenjun Zhang
Reallocating carbon responsibility: Does industrial restructuring increase the burden on less developed regions and deepen regional carbon inequality in China?
Abstract China’s industrial restructuring (2012–2017) yielded a net carbon emissions reduction of 432 Mt (4.6% of 2017 emissions), but these gains were distributed unevenly across regions. Emission cuts were concentrated in certain traditional resource-dependent and coastal provinces, while a few regions saw structural emission increases, reflecting heterogeneous regional outcomes.
Effects of Water-Fertilizer-Gas Coupling on Emitter Clogging and Uniformity of Drip Irrigation System
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Linear Active Disturbance Rejection Control System for the Travel Speed of an Electric Reel Sprinkling Irrigation Machine
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Processes | Free Full-Text | Study on Short-Term Electricity Load Forecasting Based on the Modified Simplex Approach Sparrow Search Algorithm Mixed with a Bidirectional Long- and Short-Term Memory Network
1. Introduction Electricity is a special kind of secondary energy that is produced, transmitted, distributed and consumed simultaneously. This means that power generation on the supply side and power consumption on the user side are in a dynamic equilibrium relationship. When power generation and consumption are not balanced, it can cause safety accidents and lead to large economic losses for the power system and users.
Influence of Runner Downstream Structure on the Flow Field in the Runner of Small-Sized Water Turbine
1. Introduction As a power machine driven by clean energy, a hydraulic turbine uses water pressure to drive the rotation of the runner and converts the pressure energy of water into mechanical energy or electric energy of the hydraulic turbine. As a driving element, it is widely used in electric power, agriculture, the ocean and other fields. The efficient and safe utilization of water energy puts forward stricter requirements for the stable operation of hydraulic turbines [1,2].
Influence of Runner Downstream Structure on the Flow Field in the Draft Tube of a Small-Sized Water Turbine
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
The Performance Evaluation of a Hybrid System Combining an Alkaline Fuel Cell with an Inhomogeneous Thermoelectric Generator
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Application and Analysis of Liquid Organic Hydrogen Carrier (LOHC) Technology in Practical Projects
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Enhanced Oil Recovery and CO2 Storage Performance in Continental Shale Oil Reservoirs Using CO2 Pre-Injection Fracturing
1. Introduction The Intergovernmental Panel on Climate Change (IPCC) of the United Nations reports that limiting global warming to 2 °C requires the global artificial carbon dioxide (CO2) emissions to be reduced by a quarter compared with those in 2010 before 2030 at the latest and achieve net zero CO2 emissions by 2075; for a more rigorous goal of 1.5 °C, net zero CO2 emissions need to be achieved globally by 2050 [1].
Forecasting China's water use peak path under coordinating perspective from economic development and technological progress
China holds the distinction of being the foremost global consumer of water resources and contends with a significant level of water scarcity. In light of this quandary, China has been assiduously endeavoring to foster water conservation practices with the ultimate objective of reaching a peak point in water use. In this paper, we construct a framework for forecasting China's total water use (TWU) peak path.
N-doped Carbon Encapsulated Molybdenum Carbide as Efficient Catalyst for Oxidant-Free Dehydrogenation of Alcohols
We report the molybdenum carbide (Mo2C) encapsulated in N-doped carbon as efficient and stable catalyst for oxidant-free dehydrogenation of alcohols, prepared by anion exchange of H3PMo12O40 (PMo) with ionic copolymer (DIM-AN) of dicationic imidazole ionic liquid and acrylonitrile, followed by a two-step carbonization at 400 ? in air and 800 ? in Ar, respectively.
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