Developing a 160 kW continuous wave circulator for the P-band high-frequency system of the Wuhan light source by XIAO Chengcheng, ZHANG Qiang, WANG Cheng, ZHANG Junqiang, FANG Wencheng, XU Yiming

“…BackgroundSolid-state amplifiers of synchrotron radiation high-frequency cavity equipment may sustain unrecoverable damage due to the excessive reflected power resulting from load detuning, a high-power circulator is used to guide the reflected power to the absorbing load and thus protect the power source. In this case, if the reflected power suddenly increases during device operation, the temperature of the circulator cavity will be risen and the parameter characteristics of the gyromagnetic ferrite will be changed in the circulator, and eventually lead to poor absorption of the reflected power by the load.PurposeThis study aims to design and develop a circulator with a temperature compensation control unit, capable of functioning at 499.654 MHz with a 160 kW continuous wave radiofrequency power.MethodsFirstly, the circulator was simulated and optimized using the HFSS software. …”
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Optimizing nutrient supplementation strategies for sustainable biological treatment of textile wastewater by Saidou Kinda, Naim Sezgin

“…The textile industry—one of the largest water-consuming and wastewater-producing sectors globally—faces major challenges in biological treatment, particularly due to nutrient deficiencies, mainly nitrogen (N) and phosphorus (P). …”
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Experimental Investigation on the Effects of Vapor Injection on Defrosting Performance Improvement of Quasi-two Stage Compression Air-source Heat Pumps by Wei Wenzhe, Xu Lintong, Liu Xuchen, Ni Long, Song Yiping, Wu Lintao

“…The results showed that vapor injection was beneficial for shortening the defrosting duration, decreasing power consumption, and increasing defrosting efficiency. At the optimal opening of the injection electronic expansion valve, the defrosting duration was shortened by 20.61%; the heat absorbed from water and power consumption decreased by 8.74% and 17.98%, respectively; whereas the defrosting efficiency increased by 6.22%.…”
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Multiscale Water Cycle Mechanisms and Return Flow Utilization in Paddy Fields of Plain Irrigation Districts by Jie Zhang, Yujiang Xiong, Peihua Jiang, Niannian Yuan, Fengli Liu

“…This study aimed to reveal the characteristics of returned water in paddy fields at different scales and the rules of its reuse in China’s Ganfu Plain Irrigation District through multiscale (field, lateral canal, main canal, small watershed) observations, thereby optimizing water resource management and improving water use efficiency. …”
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Research and application of well location deployment parameters for cluster development of medium-deep hydrothermal geothermal resources: A case study of HTC geothermal field by GAI Changcheng,ZHAO Zhongxin,REN Lu,YAN Yican,HOU Benfeng

“…We employ numerical simulation technology to integrate the underground temperature field, pressure field, and water flow field into a comprehensive mathematical model. …”
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Simultaneous water uptake from shallow groundwater and drip irrigation: Lysimeter experiments with ceramic cups by Ben Cohen, Ido Nitsan, Ilan Ben‐Noah, Shmulik P. Friedman

“…The findings underscore the potential of groundwater as a supplementary water source for crops, offering practical implications for optimizing supplemental irrigation strategies and sustainable water management in agriculture. …”
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Numerical Simulation on Heat Transfer Characteristics of Water Flowing through the Fracture of High-Temperature Rock by Xiaohu Zhang, Zhaolun Wang, Yanhua Sun, Chun Zhu, Feng Xiong, Qiongqiong Tang

“…Deep geothermal resources are becoming an increasingly important energy source worldwide. To achieve the optimal efficiency of this resource, the heat transfer characteristics between flowing water and rock need to be further studied. …”
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Numerical Simulation of Hydrodynamic Performance of an Offshore Oscillating Water Column Wave Energy Converter Device by Peng Tang, Xinyi Lin, Wei Wang, Hongsheng Zhang

“…Wave energy, as a renewable energy source, plays a significant role in sustainable energy development. …”
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FATTY ACID PROFILES OF MICROALGAE ISOLATES FROM THE WATERS OF ITS DORMITORY POND IN SURABAYA, INDONESIA by Alfiyyana Nurrahma Mawardani, Dini Ermavitalini, Triono Bagus Saputro, Farid Kamal Muzaki, Adi Setyo Purnomo, Hery Purnobasuki

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Water erosion and its mitigation in sloped black soil farmlands in Northeastern China: A review by SHEN Haiou, REN Ming, WEN Leilei, LIANG Yushi, LIU Yang

“…【Background and Objective】 Water erosion is a common form of soil degradation, affecting 1.071 4 million km2 of soil in China, accounting for 40.77% of national soil erosion. …”
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Degradation modeling of polymer electrolyte membrane water electrolyzers for hydrogen production: motivation, status, and strategies by Thomas Waite, Mohammad Yazdani-Asrami

“…Polymer electrolyte membrane water electrolyzers (PEMWEs) are an important fixture in the generation of green hydrogen. …”
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External Moderation of Reactor Core Neutrons for Optimized Production of Ultra-Cold Neutrons by Graham Medlin, Ekaterina Korobkina, Cole Teander, Bernard Wehring, Eduard Sharapov, Ayman I. Hawari, Paul Huffman, Albert R. Young, Grant Palmquist, Matthew Morano, Clark Hickman, Thomas Rao, Robert Golub

“…The ultra-cold neutron (UCN) source being commissioned at North Carolina State University’s PULSTAR reactor is uniquely optimized for UCN production in the former graphite-filled thermal column outside of the reactor pool. …”
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Enhanced biogas production from water hyacinth and cow dung with wood and faecal sludge biochar by Robinah N. Kulabako, Swaib Semiyaga, Rodney S. Tumwesige, Collin Irumba, Miria I. Opio, Musa Manga, Vianney Tumwesige, Jessica Quintana-Najera, Andrew B. Ross

“…Water hyacinth (WH), known for its ecotoxicity and economic burden in tropical regions, can play an important role as a lignocellulosic biomass source for biogas production. …”
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System and engineering practice of coal mining technology under buildings, water bodies and railways in China by Wenbing GUO, Yuhang HU, Chaoqun HU, Longxiang LI, Dongtao WU, Zhibo GE

“…There is a large amount of coal resources that are difficult to mine due to buildings, water bodies and railways in China. Conducting research on coal mining technology and liberating pressed coal under building, water body and railways are significant for improving the recovery rate of coal resources, optimizing the layout of mining and extending the service years of mines. …”
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Illuminating the dynamic water–nitrogen relationship in rice via stable isotope techniques to improve cultivation by Linlin Jiang, Bin Yang, Fan Zhao, Jie Pan, Zhenjie Chen, Junen Wu

“…Rice is a staple food for more than half of the global population, and optimizing water and nitrogen (N) management is crucial for sustainable rice production. …”
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Synergistic Effects of Drivers on Spatiotemporal Changes in Carbon and Water Use Efficiency in Irrigated Cropland Ecosystems by Guangchao Li, Zhaoqin Yi, Tiantian Qian, Yuhan Chang, Hanjing Gao, Fei Yu, Liqin Han, Yayan Lu, Kangjia Zuo

“…Based on a multi-source remote sensing dataset, this study applies a trend analysis (Sen + Mann–Kendall), a dual-type randomized extraction algorithm, and an optimized XGBoost model to examine the spatiotemporal variations in cropland CWUE, including the water use efficiency of net primary production (WUE_NPP), water use efficiency of gross primary production (WUE_GPP), and carbon use efficiency (CUE) in Henan Province from 2001 to 2019. …”
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Sediment stability is optimized by manipulating planting design during coastal marsh establishment by Christine B. Rohal, Xiao Yu, Jesse Mason Crawford, Ollie Montgomery, Laura K. Reynolds, Carrie Reinhardt Adams

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POSSIBLE REDUCTION OF ENVIRONMENTAL IMPACTS OF GEOTHERMAL ENERGY EXTRACTION IN A THEORETICAL SPA by TAMÁS BUDAY

“…Four water extraction models are discussed in which the water and heat demand of the theoretical spa are supplied using different sources. …”
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The impact of urban parks on the thermal environment of built-up areas and an optimization method. by Yujun Yang, Yuheng Lv, Dian Zhou

“…It is demonstrated that, the influencing factors of the cooling effect of urban park cold islands are summarized: the area and perimeter of the park, the area and perimeter of water bodies, and the area of trees are all positively correlated with the cooling effect. …”
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Optimization of biodegradation efficacy of acrylic-based paint contaminated soil by Alcaligenes faecalis by P. I. Orjiakor

“…During industrial production and applications, the acrylates and acrylic-containing compounds could contaminate/accumulate in water bodies and soil systems, hence the need for bioremediation. …”
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