Publications by authors named "Q B Sun"
Hydrogen is a promising clean energy source with geological reserves widely distributed globally, offering an annual flow exceeding 23 trillion grams. However, natural hydrogen extraction wells face unique safety challenges compared to conventional oil and gas wells. This paper reviews well safety concerns such as tubing/casing damage, cement/sealant failure, and excessive annular pressure buildup.
View Article and Find Full Text PDFThe hydrodynamics, water temperature, and water quality model for the Dan River and Renzhuang Reservoir continuum were developed using field monitoring data and the Environmental Fluid Dynamics Code (EFDC). An in-situ water discharge experiment enabled the calculation of water propagation time using a simulated flood progression method and the hydrodynamics module of EFDC. Based on these model results, degradation coefficients for chemical oxygen demand, biochemical oxygen demand, nitrogen (N), phosphorus (P), fluoride, arsenic were determined, revealing significantly higher values when the wetland barrage was opening.
View Article and Find Full Text PDFThiol-Ene Click Chemistry: A General Strategy for Tuning the Properties of Vinylene-Linked Covalent Organic Frameworks.
ACS Appl Mater Interfaces
January 2025
Article Synopsis
- Vinylene-linked Covalent Organic Frameworks (V-2D-COFs) are advanced materials known for their stable, crystalline structures and excellent optoelectronic properties, but their synthesis is limited due to challenges with C═C bonds.
- Postsynthetic modification (PSM) offers a solution by allowing the introduction of functional groups into these frameworks, thus expanding their potential applications.
- The study demonstrates a thiol-ene click reaction to successfully modify two COFs, enhancing their properties and structural versatility, which could lead to new applications in areas like hydrophilicity and proton conductivity.
Background: Many studies have developed or validated predictive models to estimate the risk of sarcopenia in dialysis patients, but the quality of model development and the applicability of the models remain unclear.
Objective: To systematically review and critically evaluate currently available predictive models for sarcopenia in dialysis patients.
Methods: We systematically searched five databases until March 2024.
Purpose: To present the different findings of Chlamydia psittaci (C. psittaci) pneumonia on computed tomography (CT) according to the progression of the disease, to improve diagnostic accuracy, guide early clinical diagnosis, evaluate treatment efficacy, and reduce the mortality associated with the disease.
Methods: In total, 80 cases of C.