Results 111 to 120 of about 54,052 (308)

Expanding Metabolic Online Monitoring Capabilities in 96‐Deepwell Microtiter Plates by Combining Optoelectronic O2 and CO2 Sensors

Biotechnology and Bioengineering, EarlyView.
ABSTRACT To increase the information content in early stages of bioprocess development, various technologies have been introduced for monitoring cultivations in microtiter plates (MTPs). Besides spectroscopical measurements, like in the BioLector technology, optical measurements with luminescent sensors, placed directly in the cultivation medium ...
Robert Dinger, David Pfeifer, David Flitsch, Jan P. Fischer, Clemens Lattermann, Sergey M. Borisov, Jochen Büchs   +6 more
wiley   +1 more source

Ambient air PM2.5-bound PAHs in low traffic, high traffic, and industrial areas along Tehran, Iran [PDF]

, 2021
Polycyclic aromatic hydrocarbons (PAHs) have aroused considerable concern over their ubiquitous presence and potentially hazardous effects on the environment.
Gholami, M., Taghizadeh, F., Jonidi Jafari, A, Arfaeinia, H., Kermani, M, Jonidi Jafari, A., Shahsavani, A, Arfaeinia, H, Kermani, M., Shahsavani, A., Gholami, M   +10 more
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Interface‐Engineered Li–Ni–O/Ni Heterostructures With Tunable Vacancies on Biochar Enable Biomass‐to‐Hydrogen Conversion

Carbon Energy, EarlyView.
This study shows that lithium induces Li–Ni–O/Ni heterostructures on biochar, creating oxygen vacancies and optimal acid–base environments that enhance steam activation and suppress carbon deposition. These interfacial effects and synergistic modulation lead to high hydrogen yields at moderate temperatures, providing a scalable catalyst design strategy
Jiali Guo, Jit Loong Cyrus Foo, Guicai Liu, Liya Ge, Andrei Veksha, Wei Ping Chan, Dean Song, Grzegorz Lisak   +7 more
wiley   +1 more source

Post‐Modification of Tripyrenylenes to Enantiopure π‐Extended D3‐Symmetric Propellers

Chemistry – A European Journal, EarlyView.
The post‐modification of tripyrenylenes to π‐extended enantiopure propellers with tris‐phenanthrophenazines is presented and the chiroptical properties as well as the solid‐state packings investigated in comparison to the corresponding racemic mixtures.
Dennis Popp, Melanie Bruttel, Sebastian Möbert, Anusha Sounder Rajan, Christoph Keck, Darius Boehm, Frank Rominger, Sven M. Elbert, Michael Mastalerz   +8 more
wiley   +1 more source

Evaluating the Relationship Between Occupational Exposure to Polycyclic Aromatic Hydrocarbons (PAHs) and Urinary Metabolite Levels in Built-Up Roofing Asphalt Workers in Ilam City [PDF]

بهداشت و ایمنی کار
Introduction: Exposure to various chemicals can occur in the workplace. Polycyclic aromatic hydrocarbons (PAHs) are among these compounds. The aim of this study was to investigate the relationship between exposure to PAHs and urinary metabolites among ...
Hossein Ali Rangkooy, Behzad Fouladi Dehaghi, Maedeh Kamalvandi, Hojatollah Kakaei   +3 more
doaj  

Removal of PAHs from n-Paraffin by Modified Clinoptilolite [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2007
The ability of natural clinoptilolite and its modified forms were studied for removal of PAHs from n-paraffin. Surfactant modified zeolite (SMZ) was obtained by modifying clinoptilolite with hexadecyltrimethylammonium ion. Homoionic forms of zeolite were
Hossein Faghihian, Mohammad Hossein Mousazadeh   +1 more
doaj  

Microwave‐assisted catalytic pyrolysis of textile wastes: Synergistic effects and product characteristics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study examines the microwave‐assisted catalytic pyrolysis (MACP) of individual and blended textiles (cotton, polyester, nylon 6) using ZnO and a ZnO/natural zeolite catalyst. In a custom‐built microwave reactor operated at 500°C, 1 kW power, and a 15‐min residence time, textile wastes were pyrolyzed.
Peyman Alizadeh, Taylor Wright, Preksha Sharma, Xiaotao Bi   +3 more
wiley   +1 more source

Emisiones de hidrocarburos aromáticos policíclicos y bifenilos carboxilados policíclicos en hornos eléctricos de arco

Revista de Metalurgia, 2008
Este artículo contiene resultados del trabajo ejecutado para estudiar la determinación de las emisiones de los micropolutantes orgánicos muy tóxicos que se emiten por los hornos eléctricos de arco utilizados en la producción de acero.
J. F. P. Gomes
doaj   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou   +4 more
wiley   +1 more source

Svalbard local air contamination by PAHs and nitro- and oxy- PAHs [PDF]

, 2020
International audiencePolycyclic aromatic hydrocarbons (PAHs) are of great public concern due to their toxicity and potential carcinogenicity. PAHs are listed as chemicals of emerging concern in the Arctic (AMAP, 2016).
Halse, Anne Karine, Kallenborn, Roland, Albinet, Alexandre, Drotikova, Tatiana, Ali, Aasim M., Reinardy, Helena C.   +5 more
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