Results 21 to 30 of about 1,924,634 (308)

Does Usage of Online Social Media Help Users With Depressed Symptoms Improve Their Mental Health? Empirical Evidence From an Online Depression Community

Frontiers in Public Health, 2021
Online depression communities offer people with depressed symptoms new opportunities to obtain health information and provide social support for each other to fight against the depression.
Yingjie Lu, Taotao Pan, Jingfang Liu, Jun Wu   +3 more
doaj   +1 more source

The impact of air pollution on corporate cash holdings

Borsa Istanbul Review, 2021
Based on the data of A-share listed companies in Shanghai and Shenzhen from 2013 to 2017 and the air quality monitoring data released by the China National Environmental Monitoring Centre, this paper conducts an empirical test on the relationship between
Bin Li, Mingyao He, Fengying Gao, Yating Zeng   +3 more
doaj   +1 more source

Research on Regional Carbon Emission Reduction in the Beijing–Tianjin–Hebei Urban Agglomeration Based on System Dynamics: Key Factors and Policy Analysis

Energies, 2023
Urban agglomerations are regions where the economy and population are highly concentrated, which are also spatial units with more concentrated carbon emissions.
Yuan Zeng, Wengang Zhang, Jingwen Sun, Li’ao Sun, Jun Wu   +4 more
doaj   +1 more source

Integration of a failure monitoring within a hybrid dynamic simulation environment [PDF]

, 2008
The complexity and the size of the industrial chemical processes induce the monitoring of a growing number of process variables. Their knowledge is generally based on the measurements of system variables and on the physico-chemical models of the process.
Alur, Anderson, Barton, Basseville, Chen, Chow, David, David, De Kleer, Franck, Frank, Gertler, Gilles Hétreux, Isermann, Jean Marc Le Lann, Jourda, Marie Véronique Le Lann, Mehra, Nelly Olivier-Maget, Olivier, Olivier, Perret, Shih, Shih, Sifakis, Simani, Venkatasubramanian, Watanabe, Willsky, Wöllhaf, Xiong, Zaytoon   +31 more
core   +2 more sources

Integration of an object formalism within a hybrid dynamic simulation environment [PDF]

, 2004
PrODHyS is a general object-oriented environment which provides common and reusable components designed for the development and the management of dynamic simulation of systems engineering.
Hétreux, Gilles, Le Lann, Jean-Marc, Perret, Jocelyne   +2 more
core   +3 more sources

Model based fault diagnosis for hybrid systems : application on chemical processes [PDF]

, 2009
The complexity and the size of the industrial chemical processes induce the monitoring of a growing number of process variables. Their knowledge is generally based on the measurements of system variables and on the physico-chemical models of the process.
Hétreux, Gilles, Le Lann, Jean-Marc, Le Lann, Marie-Véronique, Olivier Maget, Nelly   +3 more
core   +2 more sources

ReRec: A Divide-and-Conquer Approach to Recommendation Based on Repeat Purchase Behaviors of Users in Community E-Commerce

Mathematics, 2022
Existing studies have made a great endeavor in predicting users’ potential interests in items by modeling user preferences and item characteristics. As an important indicator of users’ satisfaction and loyalty, repeat purchase behavior is a promising ...
Jun Wu, Yuanyuan Li, Li Shi, Liping Yang, Xiaxia Niu, Wen Zhang   +5 more
doaj   +1 more source

Development of αFe2O3-TiO2/PPOdm Mixed Matrix Membrane for CO2/CH4 Separation [PDF]

E3S Web of Conferences, 2021
Magnetophoretic dispersion of magnetic fillers has been proven to improve gas separation performances of mixed matrix membrane (MMM). However, the magnetic field induced is usually in a horizontal or vertical direction during membrane casting.
Yap Yun Kee, Oh Pei Ching, Chin Evan Yew Jin   +2 more
doaj   +1 more source

Environmental efficiency of ports under the dual carbon goals: Taking China’s Bohai-rim ports as an example

Frontiers in Marine Science, 2023
In 2020, China proposed the country’s dual carbon goals of peaking carbon emissions by 2030 and achieving carbon neutrality by 2060. Under the dual carbon goals, the low-carbon transformation has become an important development direction for Chinese ...
Jinpei Li, Jianing Ren, Xun Ma, Guangnian Xiao   +3 more
doaj   +1 more source

CHEMICAL INDUSTRY RISK MANAGEMENT

Nonconventional Technologies Review, 2022
The main objective of this work is represented by the identification of the necessary tools for the estimation of the acute toxicity of a chemical based on mathematical models and chemical databases.
Anca Cristina Tatarcan, Victoria Petroesc, Augustin Semenescu   +2 more
doaj