Results 91 to 100 of about 12,904,011 (291)

Innovative Flotation Reagents: Locked Cycle Flotation Testing by Florrea Specialty Reagents for the Challenging Gold Ores in Sarawak [PDF]

E3S Web of Conferences
Refractory gold ores, particularly those containing sulfide, pose significant challenges. Flotation is a promising alternative to enhance the recovery of gold from these types of ore. This study investigates gold ore samples from Sarawak, Malaysia.
Lisanul Karimah Armitha, Putri Kurniasari Anita, Dian Pahlevi Niko   +2 more
doaj   +1 more source

Nickel solution prepared for precision electroforming [PDF]

, 1965
Lightweight, precision optical reflectors are made by electroforming nickel onto masters. Steps for the plating bath preparation, process control testing, and bath composition adjustments are prescribed to avoid internal stresses and maintain dimensional

core   +1 more source

Random Polyelectrolytes and Polyampholytes in Solution

, 1998
The behavior of polyelectrolytes and polyampholytes in semi-dilute solutions is investigated theoretically. Various statistical charge distributions along the polyelectrolyte chains are considered: smeared, annealed, permuted and quenched.
Andelman, D., Borukhov, I., Orland, H.
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Parallel Searching for a First Solution [PDF]

, 1993
A parallel algorithm for conducting a search for a first solution to the problem of generating minimal perfect hash functions is presented. A message-based distributed memory computer is assumed as a model for parallel computations.
Bartoszek, Bozena, Czeck, Zbigniew, Konopka, Marek   +2 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Controlling the Solubility, Release Rate and Permeation of Riluzole with Cyclodextrins

Pharmaceutics
Riluzole (RLZ), a sodium channel-blocking benzothiazole anticonvulsant BCS class II drug, is very slightly soluble in aqueous medium. To improve aqueous solubility and modulate dissolution rate and membrane permeability, complex formation of RLZ with two
Tatyana Volkova, Olga Simonova, German Perlovich   +2 more
doaj   +1 more source

Solution generating with perfect fluids

, 1996
We apply a technique, due to Stephani, for generating solutions of the Einstein-perfect fluid equations. This technique is similar to the vacuum solution generating techniques of Ehlers, Harrison, Geroch and others.
A. Vilenkin, B. Berger, B. K. Harrison, D. Kramer, D. Kramer, D. Kramer, David Garfinkle, E. N. Glass, G. Neugebauer, H. D. Wahlquist, H. Stephani, I. Hauser, J. A. Allnutt, J. Ehlers, J. P. Krisch, J. P. Krisch, J. Wainwright, P. C. Vaidya, R. Geroch, R. Tabensky, S. W. Hawking, Z. Perjés   +21 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Mechanochemical Activation of Olanzapine in Mixed Solid Dispersions: Impact of Excipients on Release and Permeation Rates

Pharmaceutics
Background: The key parameters determining the bioavailability of an active pharmaceutical ingredient are its solubility/dissolution rate in physiological fluids and permeability across biological membranes.
Tatyana Volkova, Olga Simonova, German Perlovich   +2 more
doaj   +1 more source