chemical balance


  • WordNet 3.6
    • n chemical balance a beam balance of great precision used in quantitative chemical analysis
    • ***


In literature:

But during the eighteenth century the balance was introduced as an instrument of chemical research.
"History of the Conflict Between Religion and Science" by John William Draper
He had a chemical balance which dated from the days when he worked at chemistry with his brother Erasmus.
"The Life and Letters of Charles Darwin, Volume I (of II)" by Charles Darwin
These various hormones or chemical controllers in the blood interact in a nicely balanced chemical system.
"Taboo and Genetics" by Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
If the chemical balance cannot demonstrate this truth, how, then, can we know it?
"The Arena" by Various
Of course, love cannot be measured by the yard or bushel, nor can it be weighed on the most delicate chemical balance.
"Woman" by William J. Robinson
The metal worker made weapons and jewellery but he never made a chemical balance.
"A Short History of the World" by H. G. Wells
The bottles were then carefully labeled, numbered, and accurately weighed upon chemical balances.
"Paint Technology and Tests" by Henry A. Gardner

In news:

Renewable feedstocks can transform the chemical industry and keep it in the U.S. A Balanced Diet For The Chemical Industry.
Before winter, check your pool's chemical balance .
Before winter hits and you close your pool for the season make sure your water has a good chemical balance .
A correct chemical balance will protect your pool's surface.
Renewable feedstocks can transform the chemical industry and keep it in the U.S. A Balanced Diet For The Chemical Industry .
Facility managers (fms) need to balance many cost, environmental, personnel, and even chemical requirements in order to protect themselves, building occupants, and the businesses they serve.
Hands down, epoxies have the balance of mechanical, thermal, electrical, chemical and adhesion properties.
Balancing the load cuts utility costs at Eastman Chemical.
The chemical compound resveratrol, an antioxidant found in red wine and linked to many health benefits including anti-aging, can now claim to help improve balance.
Chemical link for hearing, balance found.
How to balance a chemical equation.

In science:

On the PSDW side, we map the square lattice PSDW at the balanced case into a hard core bosons hopping on a square lattice at half filling, then adding a small imbalance in the BLQH corresponds to adding a small chemical potential in the boson model.
Mutual Composite Fermion and composite Boson approaches to balanced and imbalanced bilayer quantum Hall system: an electronic analogy of the Helium 4 system
The dominant process governing the chemical balance is the photodissociation of H2 , the rate of which is determined by both H2 self-shielding and attenuation by dust.
Density structure of the Horsehead nebula photo-dissociation region
However, this is important as atoms play a dominant role in the energy balance of the gas, and observations of atomic species such as C i can be used to determine the physical and chemical conditions of the gas.
The eSMA: description and first results
To introduce the strong departure from chemical equilibrium for charm quarks we introduce a charm fugacity gc which regulates the number of charm quarks in the thermal ensemble via the charm balance equation.
Charmonium from Statistical Hadronization of Heavy Quarks -- a Probe for Deconfinement in the Quark-Gluon Plasma
Secondly, we are extending this approach to the more interesting case of the double von Neumann problem , which is able to incorporate information on the energy balance of the chemical reactions.
A weighted message-passing algorithm to estimate volume-related properties of random polytopes
This expression o f the chemical potential is attained by considering independent and indist inguishable particles. Eqn.5 is the detailed balancing i.e. the ratio between the rate constants is equal to the equilibrium constant of the reaction.
Vibrational temperature of the adlayer in "hot atom" reaction mechanism
After trapping, electron capture is balanced by νe capture to establish chemical equilibrium at a given electron lepton fraction.
Perspectives on Core-Collapse Supernova Theory
Above Ts the sterile neutrino and scalar singlet σ are in chemical equilibrium with the lepton and Higgs doublets and their number asymmetries are constrained by the equations of detailed balance.
Blocking Active-Sterile Neutrino Oscillations in the Early Universe with a Majoron Field
In addition, ratios of particles with the same mass, but different quark content, such as ¯p/p and K −/K + , are sensitive to the balance between matter and antimatter, characterized by the baryon chemical potential µB .
Exploring QCD with Heavy Ion Collisions
The equilibrium can also be understood in terms of a balance of the chemical processes of exoergic recombination and endoergic dissociation .
Ultracold Fermi gases in the BEC-BCS crossover: a review from the Innsbruck perspective
There are three mechanisms for bringing such a system out of equilibrium: preparing it in a nonequilibrium state, externally driving it, or putting it in contact with multiple reservoirs at different temperatures or chemical potentials thus breaking the detailed balance condition (DBC).
Entropy fluctuation theorems in driven open systems: application to electron counting statistics
Clearly many points in this simple description require study, including the energy balance and equlibrium temperature of the material, the temperature distribution in the shell, and the evolution of chemical equilibrium.
The molecular and dusty composition of Betelgeuse's inner circumstellar environment
Lodders 1994; Lodders 2003) which calculates chemical equilibrium compositions by considering the dual constraints of mass balance and chemical equilibrium.
A comparison of chemistry and dust cloud formation in ultracool dwarf model atmospheres
Now, to find the ionization balance for a mixture of chemical elements, for example, composed of H and elements from He to Fe, we close the system of balance equations described above by the equations for the conservation of the number of particles and electrical plasma neutrality.
The Light Curve of Supernova 1987A: The Structure of the Presupernova and Radioactive Nickel Mixing
To calculate the corresponding opacity, we solved the special problem of the populations of excited atomic and ionic levels and the ionization balance for a mixture of chemical elements from H to Zn with all ionization stages at given density and temperature using the Boltzmann and Saha formulas.
The Light Curve of Supernova 1987A: The Structure of the Presupernova and Radioactive Nickel Mixing