Based on the existing statistical data of the Lingang Special Area in Shanghai and considering its future socio-economic development, industrial structure, and technological development, a LEAP-Lingang model was developed to analyze the evolution trends of energy demand and carbon emissions under the baseline scenario, low-carbon scenario, and enhanced low-carbon scenario. To enhance the prediction accuracy of the model, the Logistic population growth model was used to predict future population data, and the learning curve model was used to simulate the cost evolution trend of related carbon reduction technologies. In addition, an economic evaluation model for carbon reduction technologies was developed, and the economic costs and emission reduction potential of typical carbon reduction technologies were evaluated by drawing a marginal emission reduction cost curve.
View Article and Find Full Text PDFDietary-derived substances possess significant potential as anthropogenic markers owing to the large consumption and different intake habit. To investigate and evaluate such markers, wastewater samples from 35 wastewater treatment plants across 29 Chinese cities were collected to analyze artificial sweeteners (acesulfame and cyclamate) and natural spicy compounds (capsaicin and dihydrocapsaicin). Acesulfame (mean: 14.
View Article and Find Full Text PDFBackground: Carbapenem-resistant (CRKP) infection has proven to be difficult to control and typically presents with devastating effects.
Methods: This retrospective study was conducted on the renal recipients at our institution between January 2021 to January 2022. Clinical data was collected to identify factors associated with CRKP infection and clinical outcomes.
Sewage epidemiology is a real-time tool used to monitor tobacco consumption. In this study, we investigated the tobacco consumption in eight cities in Jilin province using sewage epidemiology. We collected influent wastewater samples from ten wastewater treatment plants (WWTPs) that serve nearly four million people.
View Article and Find Full Text PDFChlorinated flame retardants, particularly dechlorane plus (DP), were widely used in commercial applications and are ubiquitous in the environment. A total of seven species of aquatic organisms were collected concurrently from the region of a chemical production facility in Huai’an, China. DP and structurally related compounds including mirex, dechloranes 602, 603, 604, chlordene plus (CP), DP monoadduct (DPMA), and two dechlorinated breakdown products of DP, decachloropentacyclooctadecadiene (anti-Cl(10)-DP) and undecachloropentacyclooctadecadiene (anti-Cl(11)-DP), were detected in these aquatic organisms.
View Article and Find Full Text PDFEndosulfan concentrations and its distribution in air, soil, sediment and foodstuffs in the area surrounding a production facility in Huai'an, China were investigated because of its threats to the environment and human health. Air concentrations for endosulfan Ι, endosulfan II and endosulfan sulfate measured in this study were several orders of magnitude higher than those reported previously for this region. Surface soil concentration ranges of endosulfan I, endosulfan II, and endosulfan sulfate were greater than in sediment.
View Article and Find Full Text PDFIn this work, the time-dependent density functional theory (TDDFT) method was carried out to investigate the hydrogen-bonded intramolecular charge-transfer excited state of 2-(4'-N,N-dimethylaminophenyl)imidazo[4,5-b]pyridine (DMAPIP) in methanol (MeOH) solvent. All the geometric conformations of the ground state and locally excited (LE) state and the twisted intramolecular charge-transfer (TICT) state for isolated DMAPIP and its hydrogen-bonded complexes have been optimized. At the same time, the absorption and fluorescence spectra of DMAPIP and the hydrogen-bonded complexes in different electronic states are also calculated.
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