Results 11 to 20 of about 5,414,012 (318)

Uncertain Multi-Criteria Optimization Problems [PDF]

open access: yes, 2021
Most real-world search and optimization problems naturally involve multiple criteria as objectives. Generally, symmetry, asymmetry, and anti-symmetry are basic characteristics of binary relationships used when modeling optimization problems.

core   +2 more sources

Critical review of multi-criteria decision aid methods in conceptual design phases: application to the development of a solar collector structure [PDF]

open access: yes, 2014
At each stage of the product development process, the designers are facing an important task which consists of decision making. Two cases are observed: the problem of concept selection in conceptual design phases and, the problem of pre-dimensioning once
EL AMINE, Mehdi   +3 more
core   +1 more source

Development and evaluation of a Planktonic Integrity Index (PII) for Jingpo Lake, China

open access: yesJournal of Limnology, 2019
A Planktonic Integrity Index (PII) for the China’s largest alpine barrier lake (Jingpo Lake) was developed to assess the water quality of Jingpo Lake by using phytoplankton and zooplankton metrics.
Xing Wang   +5 more
doaj   +1 more source

Chemical Compositions and Source Analysis of PM2.5 during Autumn and Winter in a Heavily Polluted City in China

open access: yesAtmosphere, 2020
As one of the biggest cities in North China, Jinan has been suffering heavy air pollution in recent decades. To better characterize the ambient particulate matter in Jinan during heavy pollution periods, we collected daily PM2.5 (particulate matter with ...
Shasha Tian   +11 more
doaj   +1 more source

Rett Syndrome: Revised diagnostic criteria and nomenclature [PDF]

open access: yes, 2010
Objective: Rett syndrome (RTT) is a severe neurodevelopmental disease that affects approximately 1 in 10,000 live female births and is often caused by mutations in Methyl-CpG-binding protein 2 (MECP2). Despite distinct clinical features, the accumulation
Leonard, Helen   +44 more
core   +1 more source

Distribution and Characterization of Typical Antibiotics in Water Bodies of the Yellow River Estuary and Their Ecological Risks

open access: yesToxics, 2023
A total of 34 antibiotics from five major classes of antibiotics, including macrolides, sulfonamides, quinolones, tetracyclines and chloramphenicol, were considered as contaminants, considering the Yellow River Estuary as the study area. The distribution,
Jindong Wang   +5 more
doaj   +1 more source

STABILITY CRITERIA [PDF]

open access: yesJournal of the Experimental Analysis of Behavior, 1978
Three approaches to the determination of behavioral stability were examined. In the first, a learning curve was fit to acquisition data (from Cumming and Schoenfeld, 1960), and the “experiment” stopped when the data approached sufficiently close to the theoretical asymptote. In the second, the data were analyzed for variability and linear and quadratic
openaire   +2 more sources

Exploring HONO production from particulate nitrate photolysis in representative regions of China: characteristics, influencing factors, and environmental implications [PDF]

open access: yesAtmospheric Chemistry and Physics
The production mechanism of atmospheric nitrous acid (HONO), an important precursor of the hydroxyl radical (OH), remains controversial. Few studies have explored the effects of particulate nitrate photolysis on HONO sources under different environment ...
B. Li   +9 more
doaj   +1 more source

Characterization, occurrence, environmental behaviors, and risks of nanoplastics in the aquatic environment: Current status and future perspectives

open access: yesFundamental Research, 2021
Microplastics (MPs) are emerging contaminants that have attracted worldwide attention in recent years. Compared with MPs, nanoplastics (NPs) may exhibit greater toxicity and higher potential risks because of their unique physiochemical nanoscale ...
Junyu Wang   +9 more
doaj   +1 more source

A New Method for Ecological Risk Assessment of Combined Contaminated Soil

open access: yesToxics, 2023
Ecological risk assessment of combined polluted soil has been conducted mostly on the basis of the risk screening value (RSV) of a single pollutant. However, due to its defects, this method is not accurate enough.
Qiaoping Wang   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy