2,461 results match your criteria: "College of Architecture[Affiliation]"

Microplastics, as a novel type of environmental pollutant, have attracted notable attention in environmental research due to their widespread distribution and potential biological toxicity. Drinking water treatment plants play a crucial role in ensuring the safety of the water supply, with a particular focus on the removal efficiency of microplastics in drinking water treatment plants. Different treatment processes in water plants exhibit various removal efficiencies of microplastics and they operate through distinct removal mechanisms.

View Article and Find Full Text PDF

Revealing the contribution of mountain ecosystem services research to sustainable development goals: A systematic and grounded theory driven review.

J Environ Manage

January 2025

Northwest Surveying, Planning Institute of National Forestry and Grassland Administration, Key Laboratory National Forestry Administration on Ecological Hydrology and Disaster Prevention in Arid Regions, Xi An 710048, PR China. Electronic address:

Ecosystem services are the bridge between people and nature, especially for mountains, which cover more than two thirds of the world's territory, and are able to provide a diversity of ecosystem services and are significant for the enhancement of human well-being. Understanding how mountain ecosystem services (MES) support The United Nations (UN) Sustainable Development Goals (SDGs) is critical to realizing effective benefits from mountain resources, yet the extent to which MES support the SDGs is currently unclear and needs to be further explored. This study systematically reviewed the current research works by using grounded theory.

View Article and Find Full Text PDF

Long-term care settings are at the center of strongly debated approaches to policies that shape the delivery of care and operational practices. There is advocacy for transformational change within these settings to support a person-centered approach to care delivery, but it is difficult and multifaceted involving everything from changing the level of staffing and care models to developing appropriate metrics to assess an individual's quality of life. The physical environment is a key component for accomplishing the organizational and operational goals related to person-centered care, but providers and their design teams need the appropriate tools to guide evidence-based decision-making.

View Article and Find Full Text PDF

Background: Takeaway food is often high in calories and served in portion sizes that exceed public health recommendations for fat, salt and sugar. This food is widely accessible in the neighbourhood food environment. As of 2019, of all local authorities in England (n=325), 41 had adopted urban planning interventions that can allow them to manage the opening of new takeaway outlets in "takeaway management zones around schools" (known elsewhere as "exclusion zones").

View Article and Find Full Text PDF

Biodegradation-assisted removal of sulfur-based odor compounds in rural drinking water using durable chitosan/polyvinyl alcohol biochar aerogels.

Bioresour Technol

November 2024

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, Sichuan 610207, PR China; Yibin Institute of Industrial Technology, Sichuan University Yibin Park, Yibin, Sichuan 644000, PR China. Electronic address:

Rural drinking water often suffers from unpleasant odors like dimethyl sulfide (DMDS) and dimethyl trisulfide (DMTS) due to poor raw water quality and limited treatment options. This study introduces durable chitosan/polyvinyl alcohol (PVA) biochar aerogels-supported bioflims in ultrafiltration (BAB-UF) reactors, where the incorporation of PVA significantly enhances structural integrity, biodegradation resistance, and functional lifespan, providing an efficient, sustainable solution for removing odorous compounds from rural water. Experimental results showed the enhanced chitosan/PVA porous biochar aerogels (CPPCA) displayed excellent biocapacity and structural stability.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how antibiotics like sulfamethoxazole and trimethoprim affect nitrogen removal in wastewater treatment, revealing that low levels (15 mg/L) can enhance performance by benefiting specific bacteria.
  • High antibiotic concentrations negatively impact bacterial gene expression and nitrogen removal efficiency, leading to system collapse (removal rates below 40% and 20% for ammonia and total nitrogen, respectively).
  • The research also highlights a slight increase in antibiotic resistance genes (ARGs), especially those related to efflux, with Klebsiella identified as a key host for these ARGs in the system.
View Article and Find Full Text PDF

Mechanism of selectivity filter constriction in potassium channel: Insights from high-throughput steered molecular dynamics simulations.

Biochem Biophys Res Commun

December 2024

Department of Mechanics, College of Architecture & Environment, & Failure Mechanics and Engineering Disaster Prevention, Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China. Electronic address:

Potassium channels are essential for regulating cellular excitability by controlling K ion flow. In voltage-gated potassium (Kv) channels, C-type inactivation modulates action potentials and holds significant physiological and clinical importance. The selectivity filter (SF) of potassium channels functions as the C-type inactivation gate by alternating between conductive and non-conductive states.

View Article and Find Full Text PDF
Article Synopsis
  • Previous research identified three types of multi-component mixtures based on hormesis concentration-response curves and toxicity analysis methods.
  • This study assessed the acute and long-term toxicity of six pollutants and 12 mixtures using microplate toxicity analyses, exploring the relationship between variance and effect ratios.
  • Findings showed that acute toxicity types were consistent across short-duration and long-term exposure, indicating that chronic toxicity predictions can be based on acute toxicity results for multi-component mixtures.
View Article and Find Full Text PDF

As peri-urbanisation becomes widespread, quantitative methods for identifying peri-urban areas (PUAs) are increasingly abundant. This study aims to quantitatively compare the differences in the results obtained from multiple PUA identification methods within the same study area and to analyse the spatial patterns of the PUAs. The Threshold Method, Breakpoint Clustering, and Multilayer Perceptron were chosen to compare the identification results of PUAs in Zhengzhou City, China.

View Article and Find Full Text PDF

Accelerated Hydrothermal Aging and Degradation Mechanism of PE100 Butt-Fusion Welded Joint.

Materials (Basel)

November 2024

College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China.

High-density polyethylene (HDPE) pipelines are extensively utilized in energy transportation in the ocean. However, long-term exposure to water can alter the performance of HDPE, potentially leading to pipeline accidents. This study focuses on simulating the aging characteristics of PE100 polyethylene pipeline butt-fusion welded joints (B-FWJs) in water using hydrothermal accelerated aging experiments at various temperature gradients.

View Article and Find Full Text PDF

This study investigates the role of anthropomorphic design in alleviating consumer anxiety induced by mortality salience and delves into the underlying emotional and non-emotional mechanisms. Through a series of meticulously designed experiments, we confirm that anthropomorphic design significantly enhances positive emotional responses in consumers, reduces negative emotions, and thereby increases their preference and willingness to purchase products. Even after the diminution of emotional reactions, anthropomorphic design continues to sustain consumer preference by enhancing psychological intimacy.

View Article and Find Full Text PDF

Ecosystem services (ESs), the benefits nature provides to people, are an important basis for fulfilling sustainable development goals (SDGs). Therefore, an ES-based approach will help deepen our understanding of the relationships between natural systems and human well-being and provide co-benefit pathways for sustainable development. However, monitoring progress towards achieving the SDGs based on the contributions of ESs to SDGs is lacking.

View Article and Find Full Text PDF

Influence of steel-to-concrete ratio on sustainable column design in Saudi Arabia.

Heliyon

November 2024

Department of Building Engineering, College of Architecture and Planning, Imam Abdulrahman Bin Faisal University, PO Box 1982, Dammam, 31441, Saudi Arabia.

This study investigates the impact of the steel-to-concrete ratio in building columns on environmental factors, embodied energy, and cost estimations in a hotel construction scenario in the Eastern Province of Saudi Arabia. This study focuses on the production (A1-A3) and construction (A4-A5) stages, omits the use and disposal phases, and extensively examines the material components and their environmental implications. It evaluates the environmental impact of diverse column types.

View Article and Find Full Text PDF

Microplastics (MPs) and heavy metals widely coexist in agricultural soils, posing significant risks to soil-plant ecosystems. This study explores the effects of five common MPs-polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), and polylactic acid (PLA)-and environmental-simulating microplastics (EMPs), composed based on the composition of local MPs in agricultural soils, on the bioavailability and phytotoxicity of Cd and Cr in soils. Pot experiments demonstrated that MPs, particularly PE and EMPs at a 5 % dosage, markedly decreased soil pH, water-holding capacity, and soil organic carbon content.

View Article and Find Full Text PDF

Diffuse Ferroelectric Phase Transition-Dependent Photovoltaic Effect in BiFeO-BaTiO-Based Solid Solutions.

Inorg Chem

December 2024

Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.

Article Synopsis
  • The photovoltaic effect in ferroelectric semiconductors, known as the FPV effect, is under exploration, particularly in the BFC-BTM system, as its microscopic mechanisms remain poorly understood.
  • Research revealed a transition from rhombohedral and tetragonal to pseudocubic phases for specific compositions, leading to reduced lattice distortion and fewer macro-sized ferroelectric domains.
  • Findings indicate that the FPV effect is influenced more by the complex microstructures and phase transitions than by the overall ferroelectric polarization, suggesting a shift current mechanism related to non-centrosymmetry.
View Article and Find Full Text PDF

Background: In England, the number of takeaway food outlets ('takeaways') has been increasing for over two decades. Takeaway management zones around schools are an effective way to restrict the growth of new takeaways but their impacts on population health have not been estimated.

Methods: To model the impact of takeaway management zones on health, we used estimates of change in and exposure to takeaways (across home, work, and commuting buffers) based on a previous evaluation suggesting that 50% of new outlets were prevented from opening because of management zones.

View Article and Find Full Text PDF

Self-cleaned surface of vanadium boride for long-lasting and boosted Fenton oxidation.

J Hazard Mater

January 2025

State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China.

Coupling extra electron supply with iron-mediated advanced oxidation processes (AOPs) is an efficient strategy for long-lasting oxidation of organic contaminants in environmental remediation. Many subsequent attempts have been made, such as homogeneous catalysts and metal catalysts, of which secondary organic pollution and surface passivation layers limit their application. In this work, metal borides as co-catalysts can efficiently accelerate the Fenton reaction by firmly sacrificing electrons to Fe(III) reduction.

View Article and Find Full Text PDF

Source identification of water distribution system contamination based on simulated annealing-particle swarm optimization algorithm.

Environ Monit Assess

November 2024

Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China.

Ensuring the safety of water supplies is critical for urban areas requires rapid response when water quality anomalies are detected in the pipeline network. Prompt action is essential to prevent widespread contamination, protect public health, and mitigate potential social unrest. The particle swarm optimization (PSO) algorithm has faced challenges for contamination source identification (CSI) in water distribution systems (WDS), primarily due to its susceptibility to locally optimal solutions.

View Article and Find Full Text PDF
Article Synopsis
  • - The study assessed noise pollution levels at five major intersections in Cox's Bazar City, Bangladesh, during peak tourist season, using various noise measurement indices and surveys from 675 respondents to gauge public perception.
  • - Results showed that noise levels consistently exceeded national guidelines, particularly on weekends, and high TNI scores indicated significant dissatisfaction, especially at Link Road and Kolatoli Circle intersections.
  • - Over 95% of respondents reported increased noise pollution during peak tourist times, with many linking it to health issues like annoyance, headaches, and cognitive impairment, highlighting the need for urban planning that considers both tourist activity and resident well-being.
View Article and Find Full Text PDF

In order to optimize the overall form of electromagnetic scattering in two-dimensional dielectric media, this work offers a frequency-domain boundary element method based on isogeometric analysis. The Isogeometric boundary element method (IGABEM) is used to guarantee geometric correctness during optimization and prevent over-refinement of the mesh. Non-uniform rational B-splines are used to discretize the boundary integrals of the model, enabling rapid numerical computation while ensuring high accuracy.

View Article and Find Full Text PDF

This paper revisits the relationships among the perceived built environment, travel attitude, perceived value, and consumer travel in the particular era of the changing retail landscape amid advances in information technology. This study thus uses consistent partial least squares structural equation modelling (PLSc-SEM) to estimate the focal parameters on the basis of data from 30 commercial centres in Shanghai, China. Additionally, this inquiry uses multigroup analysis structural equation modelling (MGA-SEM) to evaluate the disparities between two types of consumer travel: purchasing goods and experiencing services.

View Article and Find Full Text PDF

Dynamic properties of mortar with oyster shell sand replacement.

Sci Rep

November 2024

Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, No.1 Xikang Road, Nanjing, China.

Article Synopsis
  • The demand for natural river sand in construction has led to environmental issues, prompting research into using crushed oyster shell sand (OSS) as a sustainable alternative for fine aggregates in mortar.
  • This study conducted Split Hopkinson Pressure Bar tests on mortar samples with varying OSS replacement ratios to analyze changes in dynamic properties like peak stress and elastic modulus.
  • Results indicated that while using up to 20% OSS improved mortar strength and energy absorption, higher replacement ratios resulted in decreased performance due to the porous nature of OSS, highlighting the need for careful balance in OSS incorporation.
View Article and Find Full Text PDF
Article Synopsis
  • The study examined how different carbon/nitrogen (C/N) ratios in sequencing batch biofilm reactors (SBBR) affect nitrogen removal from mariculture effluent, finding that a higher C/N ratio led to impressive nitrogen removal rates, achieving 95% for ammonia nitrogen and 73% for total nitrogen at a ratio of 30.
  • The effect of the seed sludge was minimal, but a higher C/N ratio resulted in more tightly bound extracellular polymeric substances (TB-EPS), which closely correlated with nitrogen removal efficiency.
  • Additionally, while high C/N ratios inhibited certain ammonia-oxidizing archaea and bacteria, they promoted other bacteria involved in nitrogen removal, highlighting the importance of C/N ratios in optimizing biological processes for wastewater treatment
View Article and Find Full Text PDF

Kindergarten activity rooms benefit children's growth and development under good natural indoor lighting conditions. Therefore, it is of great significance to conduct research on the indoor daylighting effects of kindergarten activity rooms under different orientations. However, most of the existing studies are based on the analysis and simulation of fixed orientations and single elements, and lack of comprehensive evaluation and analysis.

View Article and Find Full Text PDF

Investigating the robustness of microbial communities in municipal sludge anaerobic digestion under organic loading rate disturbance.

J Environ Manage

December 2024

College of Architecture and Environment, Sichuan University, No.24 South Section 1 First Ring Road, Chengdu, Sichuan, 610065, China.

Article Synopsis
  • Anaerobic digestion (AD) can face disturbances from changes in organic loading rates (OLRs), impacting sludge treatment, but there has been limited research on how these systems cope with such issues.
  • The study assessed both the performance of reactors and the active microbial communities during OLR shocks and fluctuations, revealing that the mesophilic communities exhibited resilience and recovered from these disturbances.
  • Analysis revealed that a diverse microbial community contributed to functional redundancy, enhancing robustness against OLR changes, and also highlighted the discovery of metabolic diversity in aerobic autotrophic bacteria in AD systems, pointing to new avenues for optimizing microbial regulation and AD design.
View Article and Find Full Text PDF