Results 271 to 280 of about 424,296 (378)

Sound‐Insulation Performance of Polylactic Acid Parts 3D Printed by Fused Filament Fabrication with Functionally Graded Porous Structure for Effective Noise Reduction

Macromolecular Materials and Engineering, EarlyView.
This study examines the sound absorption properties of fused filament fabrication (FFF) 3D‐printed polylactic acid parts with functionally graded porous structures and controlled pore sizes. It analyzes the influence of infill densities on acoustic performance of printed parts.
Reza Navidpour, Taher Azdast, Rezgar Hasanzadeh, Milad Moradian, Peyman Mihankhah, Asghar Rasouli   +5 more
wiley   +1 more source

Evaluating Indoor Air Quality in Schools: Is the Indoor Environment a Haven during High Pollution Episodes? [PDF]

Toxics
Sun L, Wei P, Westerdahl D, Xue J, Ning Z.   +4 more
europepmc   +1 more source

Tenax‐Based Electrospun Fibrous Membranes for Efficient VOC Sampling

Macromolecular Rapid Communications, EarlyView.
The study investigates the effects of solvent mixtures on the electrospinning of poly‐2,6‐diphenyl‐p‐phenylene oxide (PPPO) solutions and the characteristics of the resulting fibers. By optimizing binary and ternary solvent systems, highly porous fibers with controlled intrinsic and surface morphology can be produced.
R. Vilensky, O. Marom, D. M. Rein, E. Zussman   +3 more
wiley   +1 more source

Impact of indoor air temperature and humidity in an office on perceived air quality, SBS symptoms and performance

, 2004
Lei Fang, David P. Wyon, Geo Clausen, Povl Ole Fanger   +3 more
openalex   +1 more source

Indoor Air Quality at an Urban Primary School in Madrid (Spain): Influence of Surrounding Environment and Occupancy. [PDF]

Int J Environ Res Public Health
Alonso-Blanco E, Gómez-Moreno FJ, Díaz-Ramiro E, Barreiro M, Fernández J, Figuero I, Rubio-Juan A, Santamaría JM, Artíñano B.   +8 more
europepmc   +1 more source

Ion Chemistry in Dielectric Barrier Discharge Ionization: Recent Advances in Direct Gas Phase Analyses

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Dielectric barrier discharge ionization (DBDI) sources, employing low‐temperature plasma, have emerged as sensitive and efficient ionization tools with various atmospheric pressure ionization processes. In this review, we summarize a historical overview of the development of DBDI, highlighting key principles of gas‐phase ion chemistry and the ...
Kseniya Dryahina, Miroslav Polášek, Juraj Jašík, Kristýna Sovová, Patrik Španěl   +4 more
wiley   +1 more source

Indoor Air Quality and Bioaerosols in Spanish University Classrooms. [PDF]

Toxics
Fuentes-Ferragud E, López A, Piera JM, Yusà V, Garrigues S, de la Guardia M, López Labrador FX, Camaró M, Ibáñez M, Coscollà C.   +9 more
europepmc   +1 more source

Practical Applications of Secondary/Extractive Electrospray Ionization (SESI): A Versatile Tool for Real‐Time Chemical Analysis

Mass Spectrometry Reviews, EarlyView.
ABSTRACT In the 1980s, researchers discovered the remarkable ability of electrospray plumes to effectively ionize gas‐phase molecules via secondary ionization. Around 20 years later—coinciding with the ambient mass spectrometry revolution—secondary electrospray ionization (SESI) and extractive electrospray ionization (EESI) coupled to mass spectrometry
Xin Luo, Huiling Wang, Xiaolan Hu, Sasho Gligorovski, Xue Li, Pablo Sinues   +5 more
wiley   +1 more source

Indoor Air Quality for Poor Families: New Evidence from Bangladesh

, 2004
Mainul Huq, Susmita Dasgupta, V. Khaliquzzaman, Kiran Pandey, David A. Wheeler   +4 more
openalex   +2 more sources

Pulsed radio wave as a sustainable control technology to improve indoor air quality. [PDF]

Sci Rep
Undi GSNVKSNS, Ramya CB, Sola S, Kanniganti R, Shinde K.   +4 more
europepmc   +1 more source