Results 201 to 210 of about 164,870 (306)

Process optimization and quality assessment of redistilled Ethiopian traditional spirit (Areke): ethanol yield and zinc contamination control. [PDF]

Sci Rep
Kassahun E, Tamene A, Tadesse Y, Semagn B, Sewunet A, Ayalneh S, Tibebu S.   +6 more
europepmc   +1 more source

Data‐driven simulation of crude distillation using Aspen HYSYS and comparative machine learning models

The Canadian Journal of Chemical Engineering, EarlyView.
Integrated Aspen HYSYS–machine learning framework for predicting product yields and quality variables. Abstract Crude oil refining is a complex process requiring precise modelling to optimize yield, quality, and efficiency. This study integrates Aspen HYSYS® simulations with machine learning techniques to develop predictive models for key refinery ...
Aldimiro Paixão Domingos, Heleno Bispo, Thiago Vaz da Costa, Sérgio Mauro da Silva Neiro   +3 more
wiley   +1 more source

Predictors of COPD exacerbations differ between grades of airflow limitation. [PDF]

ERJ Open Res
Lan Y, Chen R, Zheng J, Sun Y, Wen F, Ye T, Liu C, Hu X, Goh J, Compton C, Zhong N, Jones PW, Ma Q.   +12 more
europepmc   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Prevalence of anxiety, depression and associated risk factors in gastroenterology outpatients: a multicenter cross-sectional study. [PDF]

BMC Gastroenterol
Dong Q, Li S, Zhu X, Lin K, Li Y, Wang S, Shi Y.   +6 more
europepmc   +1 more source

Tunable amylopectin graft copolymers for flocculating and dewatering iron ore tailings

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Polyacrylamide (PAM), the standard flocculant for mining tailings, often produces turbid supernatants and poorly dewatered sediments, limiting water reuse and tailings densification. We synthesized amylopectin‐graft‐poly[(2‐methacryloyloxy)ethyl]trimethylammonium chloride (AP‐g‐PMETAC) copolymers with systematically varied graft frequency (N = 
Gustavo P. Zago, Reinaldo Giudici, João B. P. Soares   +2 more
wiley   +1 more source

Spouted bed drying parameters and adjuvant effects on polyphenol retention and antioxidant activity in mango peel powders

The Canadian Journal of Chemical Engineering, EarlyView.
Spouted bed drying of mango peels with colloidal SiO2 and corn starch produces a free‐flowing powder with reduced agglomeration, increased drying yield, and preserved antioxidant and polyphenol content. Abstract The production of polyphenol‐rich powders is a promising strategy for valorizing agro‐industrial byproducts. This study evaluated drying yield,
Guilherme Henrique Alves Pinto, Fábio Bentes Freire, José Teixeira Freire, Wanderley Pereira Oliveira   +3 more
wiley   +1 more source

Prevalence of asthma and gastro-oesophageal reflux disease, and their association with health-related quality-of-life: a cross-sectional study among a cohort of Sri Lankan adolescents. [PDF]

BMJ Open
Kumari MV, Rajapakse S, Mohamed S, Devanarayana N, Rajindrajith S, Amarasiri L.   +5 more
europepmc   +1 more source

A Fast and Highly Stable Aqueous Calcium‐Ion Battery for Sustainable Energy Storage

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Aqueous batteries provide a low‐cost, safer alternative to lithium‐ion batteries, but their viability is often limited by rapid electrode degradation. This study shows that replacing K+ with divalent Ca2+ ions in the electrolyte significantly boosts the stability of both copper hexacyanoferrate cathodes and polyimide anodes, enabling fast‐charging ...
Raphael L. Streng, Samuel Reiser, Sabrina Wager, Nykola Pommer, Aliaksandr S. Bandarenka   +4 more
wiley   +1 more source

Analysis of factors influencing the efficacy of ovarian vein embolization for pelvic venous insufficiency and development of a short-term efficacy prediction model with internal validation. [PDF]

J Vasc Surg Venous Lymphat Disord
Zheng B, Xia Y, Ye R, Liu D, Liu G, Liu Y.   +5 more
europepmc   +1 more source