Results 91 to 100 of about 155,878 (259)

Metabolic Flux Analysis Reveals Cell Line‐Specific Rewiring in CHO Cells Following TCA Cycle Intermediate Feeding for Bioprocess pH Control

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Chinese hamster ovary (CHO) cells are the leading host for recombinant therapeutic protein production in the biopharma industry. In this study, we investigated how feeding acidic forms of tricarboxylic acid (TCA) cycle intermediates—malic acid, succinic acid, and α‐ketoglutaric acid—affects cell culture performance and metabolism in two ...
Sarah A. Sacco   +8 more
wiley   +1 more source

Anthropogenic radionuclides as tracers of climate change in the Pacific Ocean

open access: yesCommunications Earth & Environment
Anthropogenic radionuclides introduced into the ocean through atmospheric nuclear weapons testing, nuclear accidents, and controlled releases from nuclear facilities are powerful tracers of ocean circulation.
Pavel P. Povinec   +6 more
doaj   +1 more source

Cesium Bromide Crystal

open access: yes, 1950
In the early 1950s, NBS researchers Earle K. Plyler and Francis P. Phelps experimented with various alkali-halide crystals to explore their suitability for use in optical instruments that utilized infrared radiation. Initially, the only way to obtain the
Phelps, Francis P. (Creator)
core   +2 more sources

Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable Process

open access: yesCarbon Energy, EarlyView.
Platinum nanoparticles embedded nanoscale carbon network (Pt‐e‐Cn) are developed via a scalable flame spray pyrolysis process. Proton exchange membrane fuel cells (PEMFC) employing mesoporous Pt‐e‐Cn cathode electrocatalysts exhibit exceptional durability without compromising performance.
Suriya Venkatesan   +10 more
wiley   +1 more source

Radiasi gamma dari cesium 134 pada tanah [PDF]

open access: yes, 2011
Nilai efisiensi pada pengukuran radiasi gamma sangat dipengaruhi oleh faktor geometri. Pengukuran ini dilakukan terhadap tanah yang dicampur dengan cesium-134 dengan radionuklida yang teratur pada spektrometer gamma.
Suhatril, Cthevya Grice Shary
core  

Metal‐Ion Regulated Light‐Free Z→E Isomerization of Azobenzene Glycomacrocycle

open access: yesChemistry – A European Journal, EarlyView.
Metal ion‐catalyzed Z→E isomerization of photoswitchable azobenzene glycomacrocycle: A new azobenzene‐based glycomacrocycle is capable of forming a 1:1 complex with divalent metal ions in both E‐ and Z‐isomers. The complexes undergo light‐free Z→E isomerization in a timescale spanning from seconds to weeks.
Yang Zhou   +4 more
wiley   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi   +7 more
wiley   +1 more source

Neutron-Deficient Cesium Isotopes [PDF]

open access: yesPhysical Review, 1950
Fink, R.W.   +2 more
openaire   +2 more sources

Synergistic Optical Strategies for Enhanced Perovskite Photocatalytic Activity

open access: yesEcoEnergy, EarlyView.
This review addresses bottlenecks of halide perovskites' photoactive components from an optics‐driven perspective and organizes recent advances into four interconnected design principles. This review provides practical design principles and outlines key directions toward efficient, selective, and stable perovskite photocatalysis for CO2 reduction ...
Jaemin Jeong   +3 more
wiley   +1 more source

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

open access: yesEcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy