Articles in this Volume

Research Article Open Access
Research Progress on Carbon Dioxide Geological Storage
Carbon Capture, Utilization, and Storage (CCUS) technology is one of the key approaches to address global climate change and achieve carbon dioxide emission reduction. As a core component of the CCUS technology system, CO₂ geological storage will play a foundational supporting role in the process of achieving the carbon neutrality goal in China's energy industry. Currently, the main geological formations for CO₂ storage include deep saline aquifers, depleted oil and gas reservoirs, deep unmineable coal seams, and basalts. Due to differences in rock properties and geological conditions, different geological formations have formed distinct storage mechanisms and models. Based on a systematic analysis of CO₂ storage mechanisms in different geological formations, combined with typical domestic and international engineering cases, this paper summarizes the implementation effects and applicable conditions of various storage technologies. Additionally, aiming at the current technical bottlenecks and safety risks of CO₂ geological storage, this article discusses the future technical development directions and industrialization paths, in order to provide theoretical support and practical reference for promoting the large-scale application of CO₂ geological storage technology in China.
Show more
Read Article PDF
Cite
Research Article Open Access
Research on the Applicability and Process of Ship-Based Carbon Capture Technology
Shipping is one of the most energy-efficient modes of transport, and its carbon emissions are second only to road transportation. Applying carbon capture technology on vessels using carbon-based fuels not only meets the Carbon Intensity Indicator (CII) requirements proposed by the International Maritime Organization (IMO) but also avoids the modification of ship internal combustion engine power systems, thereby reducing investment costs. However, ship-based carbon capture technology still faces problems such as unclear process parameters, high energy consumption, and limited research on optimal performance regulation under different operating conditions. Aiming at the ship-based carbon capture system using Monoethanolamine (MEA) solution as an absorbent, this paper focuses on reducing operational energy consumption, comparatively analyzes the development of carbon capture technology and ship-based carbon capture processes, and proposes improvement measures for technical research.
Show more
Read Article PDF
Cite
Research Article Open Access
Recent Advances of Seismic Reflection and Transmission Response Characterization Incorporating the Stress Effect
Article thumbnail
The application of seismic waves has become increasingly important in the field of geological exploration. Seismic wave reflection and transmission (R/T) can reflect the properties of subsurface rocks and reconstruct underground structures through acquired seismic data. However, subsurface reservoirs, under the influence of rock gravity and tectonic forces, possess complex in-situ stresses. In practical exploration processes, stress significantly affects the propagation characteristics of seismic waves. Therefore, understanding the role of stress is of great importance for seismic R/T research. Nevertheless, current studies on seismic R/T incorporating in-situ stress are still in their early stages, with most research neglecting the influence of stress. Thus, we review the recent advancements on the characterization methods of stress-dependent seismic R/T responses based on acoustoelastic theory, which includes the both exact and approximate equations for seismic R/T coefficients and their applications. This paper is potential for contributing to the development of future deep research on stress-dependent seismic R/T responses.
Show more
Read Article PDF
Cite
Research Article Open Access
Experimental Study on Combustion of Hydrogen-blended Natural Gas Inhibited by Inert Gases
Article thumbnail
To address the fire and explosion safety hazards in the popularization and application of hydrogen-blended natural gas, and to explore the flame suppression effects and mechanisms of CO₂ and N₂ on its premixed combustion, an experimental platform integrated with an explosion pipeline, a high-speed camera and a pressure acquisition system was established. The influence laws of inert gas volume fractions (0%, 6%, 12%, 18%) and hydrogen blending ratios (0%, 20%, 40%) on explosion overpressure and flame suppression efficiency were systematically studied. The results show that CO₂ achieves flame suppression through the synergistic effect of thermodynamic dilution and chemical inhibition. Under the pure methane condition, 18% CO₂ can reduce the peak explosion overpressure from 0.21 MPa to 0.08 MPa with a reduction amplitude of 61.9%. When the hydrogen blending ratio increases to 40%, the overpressure reduction amplitude reaches 78% at the same CO₂ concentration. N₂ mainly exerts its effect through physical dilution; 18% N₂ in pure methane reduces the peak overpressure from 0.23 MPa to 0.08 MPa with a reduction amplitude of 65.2%, and the suppression efficiency is further increased to 68.4% at a high hydrogen blending ratio. The flame suppression efficiency of both inert gases increases with the rise of their own concentrations, and the increase of hydrogen blending ratio enhances their suppression effects, while the overall flame suppression performance of N₂ is weaker than that of CO₂. The research results provide experimental basis and technical reference for the explosion prevention and control of hydrogen-blended natural gas and the design of inert gas flame suppression systems.
Show more
Read Article PDF
Cite
Research Article Open Access
Analysis and Prospect of AI's Participation in Greenhouse Environmental Regulation
Article thumbnail
Greenhouse technology can achieve high-quality and high-yield crops and promote the development of the agricultural economy. With the rapid development of science and technology, measurement and control technology, computer technology and other technologies have been applied to improve and innovate greenhouse facilities, and different control technologies are also being updated. Artificial intelligence technology can achieve multi-factor efficient rapid collection and rapid linkage regulation of the greenhouse environment based on system data, injecting new vitality into greenhouse technology. Although not yet perfect, intelligent greenhouse technology has great prospects and is worth exploring and trying. It is one of the future development directions of facility agriculture.
Show more
Read Article PDF
Cite
Research Article Open Access
Evaluation of Immunization Effect and Significance of Ecological Protection for Feline Panleukopenia Vaccine
Article thumbnail
Feline panleukopenia (FPV) poses a potential pathogen spilt risk to wild cats in urban ecosystems from the perspective of "total health" concept. The aim of this study was to evaluate the FPV immunity status of felids in different ecological niches in Beijing. Empirical data show that the homeless population presents a wide range of immunity gaps, and some individuals are in the critical risk state of low valence. This study suggests that stray animal management strategies should be promoted from a single capture-neuter-release to an upgrade from capture-neuter-vaccine-release
Show more
Read Article PDF
Cite
Research Article Open Access
Self-Exfoliated COF Encapsulate Bacteria and Fungi via Electrostatic Interaction: A Potential Broad-Spectrum Contact-Killing Strategy
Article thumbnail
Microbial contamination by bacteria and fungi poses a serious threat to global public health security. With the widespread dissemination of drug-resistant strains and the high energy consumption and toxic residues associated with traditional disinfection methods, there is an urgent need to develop novel, efficient, and residue-free broad-spectrum antimicrobial strategies. Herein, we synthesized a cationic β-ketoenamine-linked covalent organic framework, EB-TFP-COF. The material exhibits high crystallinity, excellent water stability, strong visible-light absorption, and rapid self-exfoliation capability in water. Self-exfoliated EB-TFP-COF uses electrostatic interactions to encapsulate E. coli and yeast effectively, leveraging the positive charge of its backbone to form a uniform core-shell structure. The formation of the encapsulation layer was confirmed by PXRD and confocal microscopy. This study establishes a COF-based encapsulation platform for bacteria and fungi, providing a foundation for broad-spectrum contact-based antimicrobial strategies and offering new insights for designing COF-based antimicrobial materials.
Show more
Read Article PDF
Cite
Research Article Open Access
High-Throughput Analysis of ²³⁸Pu in Urine by ICP-MS/MS
As a highly toxic α radionuclide, plutonium-238 can enter the human body through inhalation, ingestion and other pathways and remain for a long time in nuclear industry and radioactive workplaces, posing potential risks to the ecological environment and occupational health. The traditional alpha spectrometry has a long analysis cycle, which is difficult to meet the timeliness requirements of environmental emergency monitoring and batch screening. In this study, a high-throughput analysis method for ²³⁸Pu in urine based on ICP-MS/MS was established, with the chemical separation and purification process optimized as the key part. The performances of TEVA and TK200 extraction chromatography resins were compared systematically, and the elution conditions were optimized via orthogonal experiments. Elution with 20 mL of 0.1 mol/L HCl–0.05 mol/L hydroxylamine hydrochloride achieved a chemical recovery of 98.74% for ²³⁸Pu and a decontamination factor of 1.55×10⁵ for ²³⁸U, which significantly eliminated mass spectral interference. The method detection limit was 0.38 Bq/L, applicable for the routine monitoring of occupational personnel and rapid screening in environmental emergencies, and it provides technical support for the assessment of internal exposure dose and early warning of ecological risks.
Show more
Read Article PDF
Cite
Research Article Open Access
Enhanced Biophotocatalytic Performance via Photoinduced Interfacial Charge Transfer in MIP-208/E. coli Hybrids
Article thumbnail
Photosynthetic biohybrid systems (PBSs) represent a new paradigm combining the photon-capturing function of synthetic photodynamic sensitizers with the complex catalytic apparatus of living beings, and it is very promising for sustainable energy conversion. In order to avoid the dependence of intricate structural hybridization on interfacial electron transfer, we rationally designed a binary semi-artificial photosynthetic system that connects MIP-208 and Escherichia coli. This integrated platform has preserved the inherent metabolic ability of the biological chassis and significantly enhanced its capacity to utilise solar energy. Under the condition of 100 mW cm⁻² light irradiation, the MIP-208/E. coli system achieved a hydrogen production yield of 40.0 μmol per 10¹⁰ cells, which is 4.3 times that of the bacteria-only group. This work offers new ideas for the reasonable design of light-driven biohybrid systems to achieve hydrogen production.
Show more
Read Article PDF
Cite
Research Article Open Access
When Sea Urchins Dine: The Roles of Friends, Food and Fear and Implications to Kelp Forest Conservation
Article thumbnail
Kelp forests are vital "blue carbon" sinks and biodiversity hotspots, yet increasingly threatened by sea urchin overgrazing, which can convert them into barren seascapes. Understanding the behavioral drivers of urchin feeding—such as group dynamics, food availability, and predation risk—is therefore critical for effective conservation and ecosystem-based management.This study investigates the behavioral drivers behind overgrazing by the sea urchin Strongylocentrotus intermedius through controlled laboratory experiments, focusing on the roles of group size, diet composition, and predator cues. Results indicate that solitary urchins exhibit lower overall consumption and a preference for drift kelp, whereas grouped urchins show significantly higher feeding rates and shift toward live kelp, intensifying grazing pressure on kelp forests. Diet composition further modulates foraging behavior, with drift kelp abundance sustaining urchin populations even when live kelp is limited. Predator cues suppress total feeding but do not alter the preference for live kelp. The interplay between food availability and predation risk highlights that grazing dynamics are shaped by both bottom-up and top-down factors. The findings underscore the need for integrated conservation strategies that manage urchin densities, prevent aggregation, maintain kelp bed integrity, and consider predator roles to mitigate kelp forest degradation.
Show more
Read Article PDF
Cite