Results 131 to 140 of about 7,205 (295)

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

Natural South African iron‐rich sand as a functional catalyst in hybrid photocatalytic wet peroxide oxidation technology for the degradation of methyl orange dye pollutant

The Canadian Journal of Chemical Engineering, EarlyView.
This research explored South African iron‐rich sand (SAIRS) as a natural catalyst for light‐mediated wet peroxide oxidation of methyl orange dye in wastewater and at an optimized of conditions of 3500 mg/L catalyst dose, 6 mM H2O2, and pH 2.5, SAIRS achieved 94% methyl orange degradation within 90 min under visible light.
Aaliyah Ebrahim, Stephen Sunday Emmanuel, Alicia Levana Dorling, Shepherd M. Tichapondwa   +3 more
wiley   +1 more source

Safety soft sensor development for pilot‐scale ilmenite electric arc furnace using long short‐term memory‐based architecture

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Ilmenite electric arc furnaces (EAFs) are used for smelting titanium‐iron oxide ore at high temperatures generated by electrical arcs to produce titanium slag and pig iron. As these units are pushed to their limits, ensuring safe and reliable operation becomes challenging.
Antony Gareau‐Lajoie, Djogap F. Chrysler J., Daniel Rodrigues, Marie‐Ève Gosselin, Moncef Chioua   +4 more
wiley   +1 more source

High-Frequency Flp Recombinase-Mediated Inversions of the oriC -Containing Region of the Pseudomonas aeruginosa Genome

, 2000
The genomes of the two clonally derived Pseudomonas aeruginosa prototypic strains PAO1 and DSM-1707 differ by the presence of a 2.19-Mb inversion including oriC .
RoxAnn Karkhoff-Schweizer, Nazir Barekzi, Tung T. Hoang, Kerry Beinlich, Herbert P. Schweizer, Xuan-Quynh Pham   +5 more
core   +1 more source

Firm‐Level Corporate Social Responsibility and Employees' Affective Outcomes: A Multilevel Approach

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study advances research on corporate social responsibility (CSR) and employees' work attitudes by distinguishing between employee‐level CSR perceptions and firm‐level CSR practices. Prior research has mainly focused on how employees' perceptions of CSR relate to their affective outcomes; this study extends that perspective by jointly ...
Alexander C. Kraaij, Agnieszka Paruzel, Arnoud de Jong   +2 more
wiley   +1 more source

Establishment of pediatric reference ranges for circulating naïve and memory T and B cell subsets guided by the human immunophenotyping consortium standardization initiative: A large, single center U.S. experience

Cytometry Part B: Clinical Cytometry, EarlyView.
Abstract Our knowledge of the immune system continues to expand at a rapid pace, and this coupled with technological advances now enables us to interrogate both the breadth and the depth of the immune response at levels without precedent. This has also facilitated rapidly integrating some of this carefully vetted knowledge into clinical practice ...
Aaruni Khanolkar, Aisha Ahmed
wiley   +1 more source

Effect of GATC mutations in oriC on initiation synchrony and the level of HM DNA at the MboII site of oriC.

, 2016
(A) The top line shows a schematic map of oriC as in Fig 1B except for an additional GATC site (#3*) included in this study. In these experiments oriC was marked with a zeo drugR cassette. GATC sites at positions #1–9 and #3* were individually mutated to
Jyoti K. Jha (3387164), Dhruba K. Chattoraj (180110)   +1 more
core   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Strand-specific loading of DnaB helicase by DnaA to a substrate mimicking unwound oriC

, 2002
We analysed the enzymatic activity (strand dis-placement) of the Escherichia coli DnaB helicase on a mirror-image pair of oligonucleotide-based substrates mimicking the unwound replication origin oriC. Loading of the helicase complex occurred exclusively
Weigel, Christoph, Seitz, Harald
core  

Uniaxial compressive strength prediction and ratio parameter optimization of titanium tailings composite backfill materials using intelligent hybrid models

Deep Underground Science and Engineering, EarlyView.
Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley   +1 more source