Abstract The production of hydrogen peroxide (H 2 O ) through two‐electron oxygen reduction reaction (2e − ORR) has emerged as a more environmentally friendly alternative to the traditional anthraquinone method. Although oxidized carbon catalysts have intensive developed due their high selectivity and activity, yield conversion rate H under overpotential still limited. produced was rapidly consumed by increased intensity reduction, which could ascribe decomposition radicals voltage in...

Abstract Biomass feedstock ethylene glycol (EG) can be anodically oxidized to the high‐value glycolic acid (GA), which is widely considered as one critical raw material of biodegradable plastics. Developing low‐cost electrocatalyst economically produce GA with high selectivity still meeting challenges. Herein, a non‐precious Co‐Ni bimetal catalysts are developed for controllable electrooxidizing EG (EGOR). Through regulating generation key intermediate (CH 2 OH‐CO * ) on catalyst surface,...

Abstract The idea of green mining was proposed as a practical approach to make the industry more sustainable than before. Green is contemporary model centered on sustainability resources, environment, and socio-economic benefits. Its purpose develop apply technologies processes that increase environmental performance while maintaining competitiveness throughout entire cycle from exploration post-closure. Although strategy has achieved considerable significance, there still gap between its...

The Yangtze River estuary (YRE) are strongly influenced by the Kuroshio and terrigenous input from rivers, leading to formation of distinct water masses, however, there remains a limited understanding full extent this influence. Here variation masses bacterial communities 58 seawater samples YRE its adjacent waters were investigated. Our findings suggested that 5 in studied area: Black stream (BS), coastal East China Sea (CW), nearshore mixed (NM), middle deep layers (MM), blocks (DM). CW...

Machine learning offers a powerful framework for validating and predicting atomic mass. We compare three improved neural network methods representation extrapolation mass prediction. The method, adopting macroscopic-microscopic approach treating complex nuclear effects as output labels, achieves superior accuracy in AME2020, yielding much lower root-mean-square deviation of 0.122 MeV the test set, significantly than alternative methods. It also exhibits better performance when AME2020 from...

Abstract The production of hydrogen peroxide (H 2 O ) through two‐electron oxygen reduction reaction (2e − ORR) has emerged as a more environmentally friendly alternative to the traditional anthraquinone method. Although oxidized carbon catalysts have intensive developed due their high selectivity and activity, yield conversion rate H under overpotential still limited. produced was rapidly consumed by increased intensity reduction, which could ascribe decomposition radicals voltage in...

Recycled coarse aggregate is processed through the second crushing, which causes some internal damage, resulting in its physical indicators being far worse than natural aggregate; durability relatively poor, and northern region, soil contains a large number of acidic salt ions from erosion concrete, decline durability. In this test, concrete was made single composite immersion recycled using 5% water glass 8% silane solution subjected to rapid freeze–thaw test water, 3.5% NaCl solution,...

To improve the durability performance of recycled aggregate concrete in actual use, this paper uses nano-TiO2-modified coarse to study, through experiments, effects nano-TiO2 on pore distribution after freeze–thaw. The capillary-water-absorption law was used as evaluation index. prepared with different contents nano-TiO2, and changes 24 h capillary water absorption porosity freeze–thaw cycles were analysed. With help high-resolution image recognition binary-image-processing technology,...

This study examined the impact of various combinations metakaolin and 15% fly ash mix (M) on mechanical properties durability recycled fine aggregate concrete (RFAC), aiming to enhance performance, sustainability, cost-effectiveness cementitious materials, while also determining optimal admixture. Concrete (M/RFA) was tested by replacing natural with 0%, 30%, 60%, 90% aggregate, cement prepared 5%, 10%, mixed ash, respectively. The compressive strength, split tensile flexural strength...

In order to study the flexural fatigue resistance of calcium sulfate whisker-modified recycled fine aggregate concrete (RFAC), cyclic loading tests at different stress levels (0.6, 0.7, and 0.9) considering a whisker (CSW) admixture as main influencing factor were designed. Furthermore, life was analyzed, equations established using three-parameter Weibull distribution function theory. addition, micro-morphology CSW-modified observed analyzed through Scanning Electron Microscopy (SEM),...

This study examined the impact of various combinations metakaolin and 15% fly ash mix (M) on mechanical properties durability recycled fine aggregate concrete (RFAC), aiming to enhance properties, cost-effectiveness, sustainability concrete, while also determining optimal admixture. And effect 0%, 30%, 60%, 90% replaced natural compressive strength, splitting tensile flexural carbonation resistance RFAC was investigated, functional relationship equation strength model depth were established....

This study investigated soil development resulting from revegetation in a coal mining area northern Henan, China. The effectiveness of six distinct methods for reclaiming mine-degraded lands was assessed. These employed various species such as Ulmus pumila, Amorpha fruticosa, Robinia pseudoacacia, Jerusalem artichoke, and Sea buckthorn. Over three-year reclamation period, analyzed to identify the most suitable plant species. Soil samples were collected different depths, encompassing topsoil...

Abstract The gas content in shale reservoirs is often determined by the micro storage and sealing capacities of reservoir. Deep are high- or over-thermale maturity stage have complex pore structure connectivity, which highly heterogeneous vertical distribution. Research on gas-bearing property deep limited these microscopic conditions. To analyze characteristics reservoirs, this work collected summarized data total organic carbon content, mineral composition, porosity, water saturation,...

Transition metal catalysts are widely used in the 2e- oxygen reduction reaction (ORR) due to their cost-effectiveness. Defect engineering have been on developing high active catalyst, which can effectively modify sites and promote electron transfer. Here, we prepared carbon-coated Ni3S2 (Ni3S2@C), where additional sulfur vacancies (VS) induced by carbon layer coupled with nickel sites. It is demonstrated that regulate quantity of VS Ni3S2. Materials higher concentration exhibit enhanced ORR...

Summary: The gut microbiota plays a crucial role in food webs, carbon cycling, and related elements. Exopalaemon annandalei carinicauda are two important forage species the Yangtze River estuary with extremely similar living habits morphological characteristics. Exploring microorganisms guts of these shrimp can help us understand survival status estuary. Therefore, this study analyzed similarities differences intestinal flora E. through high-throughput sequencing 16S rRNA gene amplicons....

Abstract Transition metal catalysts are widely used in the 2e − ORR due to their cost‐effectiveness. However, they often encounter issues related low activity. Defect engineering on developing highly active catalysts, which can effectively modify sites and promote electron transfer. Here, carbon‐coated Ni 3 S 2 (Ni @C), where additional sulfur vacancies (V ) is prepared induced by carbon layer coupled with nickel sites. Through situ ex experiments combined DFT calculations, it demonstrated...

Global climate change will increase surface soil temperature, with consequences on plant seedling growth and population dynamics. In this study, we carried out a field experiment to investigate the effects of 2 ℃ warming physiological characteristics 1- 2-year-old seedlings dominant tree species in broadleaved Korean pine forest,

Remanufacturing widely exists in production activities. Two different game models are involved while considering reverse channels: (1) In Model P, the manufacturer provides new and remanufactured products to two retailers. New sold through an online platform (retailer R1), offline physical stores R2) a decentralized scenario. (2) C, units only one retailer R) that operates both channels centralized This research showed manufacturer’s profitability industry profits P were higher than those C...

Salt-tolerant superabsorbent polymer (SAP) was synthesized to improve the water retention properties of saline-alkali soil. The Lop Nur soil Xinjiang with high salinity (total dissolved salt: 18.13wt%) object improvement. good swelling capacity SAP (69.04 g/g) under condition contributed superb slow-release property and further [showed](https://www.wordhippo.com/what-is/another-word-for/build.html) [excellent](https://www.wordhippo.com/what-is/another-word-for/excellent.html)...