Sentences with phrase «catalytic efficiency of»

The structure reveals key interactions that probably contribute to the high catalytic efficiency of this enzyme relative to other flaviviruses, indicating promising starting points for drug design.

Among the features that determine the catalytic efficiency of a nanoparticle is its electrical charge, which is difficult to quantify in technologically relevant systems, where the particles interact with the surfaces of other materials.

Not exact matches

The P2 4 - aminomethylphenylalanine moiety of the inhibitor forms a salt - bridge with the nonconserved Asp83 of NS2B; ion - pairing between Asp83 and the P2 residue of the substrate likely accounts for the enzyme's high catalytic efficiency.

Analysis of Zika virus protease bound to a peptidomimetic inhibitor reveals its catalytic efficiency and promise as a drug target.

The research, supported by DOE's BioEnergy Technologies Office, has implications for the energy efficiency and cost of catalytic upgrading technologies proposed for use in bio-refineries.

Thus, TOFs, as time derivatives of turnover numbers with time intervals significantly shorter than the observation time, are useful for describing the catalytic efficiency as a function of time.

If this level of efficiency is possible to achieve in a fuel cell, the amount of required platinum would be comparable to what is used in an ordinary car catalytic converter.

That PNNL research team, led by Dr. Wendy Shaw, predicted that many parts of the protein scaffold play critical roles in catalytic activity and efficiency instead of only the active site.

This «single - site» catalyst — meaning the entire reaction sequence takes place on a single catalytic site of one molecule — is the first to match the efficiency of the catalytic sites that drive this reaction in nature.

To enhance the catalytic reactivity of anatase and the efficiency of devices for solar energy conversion based on anatase, it is critical to gain in - depth understanding and control of the reactions taking place at the surface of this material down to the atomic level.

β - Lactamases encoded by reconstructed sequences corresponding to the GNCA node have been previously shown11 to be able to degrade a variety of antibiotics, including penicillin and third - generation antibiotics with efficiencies similar to that of a modern average enzyme (by contrast, the modern TEM - 1 β - lactamase is a specialist enzyme that displays high catalytic efficiency with penicillin and a substantially lower efficiency with third - generation antibiotics).

Therefore, the ∼ 30-fold range of catalytic efficiency observed suggests long - range communication between residues, a feature that is often linked to conformational dynamics37, 38,39.

Using scanning transmission electron microscopy (STEM) to monitor the behaviour of the nickel - graphene combination, the scientists discovered the atom - thin carbon sheet was ensuring the efficiency of the catalytic conversion by preventing the nickel moving around.

That o2 only monitors the efficiency of the catalytic converter.

For efficiency and to save space, this concept has a tandem catalytic converter housing on each side of the vehicle: adjacent to the firewall, two thin - walled ceramic substrates are grouped into each housing.

This guarantees improved operating efficiency for team engineers and a general lowering of temperatures, thanks to the cooler and more efficient catalytic converters.

* Horsepower and torque expected to top previous model (testing is ongoing — check media.gm.com for updates) * NOx emissions reduced at least 63 percent over 2010 models * Quieter operation * High - pressure (30,000 psi / 2, 000 bar) Piezo - actuated fuel system for greater fuel efficiency, improved performance and reduced emissions * Exhaust brake system that enables controlled vehicle slowdown on downhill grades without actuating the brakes * Selective catalytic reduction after - treatment system using diesel exhaust fluid (DEF) injection to provide the best overall diesel characteristics and performance — with a range of about 5,000 miles (8,000 km) between DEF refills * Combustion and after - treatment have been optimized to provide about 700 miles (1,125 km) between diesel particulate filter regenerations — a 75 - percent improvement over the previous system and significant contributor to improved fuel efficiency, as the regeneration process requires additional fuel * B20 biodiesel capability for an alternative fueling option * Internal revisions that improve durability

The catalytic converter and GM High Energy electronic ignition were advertised among the components of «Chevrolet's new Efficiency System» which was promoted to offer other benefits to owners of 1975 models versus comparable 1974 models that included extended maintenance intervals from 6,000 to 7,500 miles (12,100 km) for oil / filter changes and spark plugs that lasted up to 22,500 miles (36,200 km) compared to 10,000 miles (16,000 km) on»74 models.

NREL shows graded catalytic - protective layer boosts longevity of high - efficiency photocathodes for renewable hydrogen

Introduction of a pump - driven AIR system in the late model year replaced PAIR to help efficiency of the catalytic converter.

Researchers at Oak Ridge National Laboratory have used on - board catalytic fuel reforming to increase the brake efficiency of a multicylinder, stoichiometric spark - ignited (SI) engine by increasing EGR dilution tolerance.

The Mercedes - Benz BlueTEC diesel engine makes use of a selective catalytic exhaust system, which uses exhaust fluid for increased efficiency, while Audi and Volkswagen use the TDI clean diesel system to spray atomized fuel directly into each cylinder.