5 resultater (0,21405 sekunder)

Vis alle filtre

Mærke

Butik

Pris (EUR)

Nulstil filter

Produkter
Fra
Butikker

Neural Networks in Chemical Reaction Dynamics - Martin Hagan - Bog - Oxford University Press Inc - Plusbog.dk

Neural Networks in Chemical Reaction Dynamics - Martin Hagan - Bog - Oxford University Press Inc - Plusbog.dk

This monograph presents recent advances in neural network (NN) approaches and applications to chemical reaction dynamics. Topics covered include: (i) the development of ab initio potential-energy surfaces (PES) for complex multichannel systems using modified novelty sampling and feedforward NNs; (ii) methods for sampling the configuration space of critical importance, such as trajectory and novelty sampling methods and gradient fitting methods; (iii) parametrization of interatomic potential functions using a genetic algorithm accelerated with a NN; (iv) parametrization of analytic interatomic potential functions using NNs; (v) self-starting methods for obtaining analytic PES from ab inito electronic structure calculations using direct dynamics; (vi) development of a novel method, namely, combined function derivative approximation (CFDA) for simultaneous fitting of a PES and its corresponding force fields using feedforward neural networks; (vii) development of generalized PES using many-body expansions, NNs, and moiety energy approximations; (viii) NN methods for data analysis, reaction probabilities, and statistical error reduction in chemical reaction dynamics; (ix) accurate prediction of higher-level electronic structure energies (e.g. MP4 or higher) for large databases using NNs, lower-level (Hartree-Fock) energies, and small subsets of the higher-energy database; and finally (x) illustrative examples of NN applications to chemical reaction dynamics of increasing complexity starting from simple near equilibrium structures (vibrational state studies) to more complex non-adiabatic reactions.The monograph is prepared by an interdisciplinary group of researchers working as a team for nearly two decades at Oklahoma State University, Stillwater, OK with expertise in gas phase reaction dynamics; neural networks; various aspects of MD and Monte Carlo (MC) simulations of nanometric cutting, tribology, and material properties at nanoscale; scaling laws from atomistic to continuum; and neural networks applications to chemical reaction dynamics. It is anticipated that this emerging field of NN in chemical reaction dynamics will play an increasingly important role in MD, MC, and quantum mechanical studies in the years to come.

DKK 1110.00
1

Brithop - Justin A. Williams - Bog - Oxford University Press Inc - Plusbog.dk

Brithop - Justin A. Williams - Bog - Oxford University Press Inc - Plusbog.dk

With ongoing debates on Scottish independence, immigration, Britain''s place in the EU, multiculturalism, national identity and the specter of a past Empire complicating ethnically-defined notions of "Britishness," the Kingdom seems far from United. As a cultural force that is often discussed as giving voice to the voiceless and empowering marginalized communities, hip-hop has become a space in which to explore and debate these issues-defining global community while celebrating locality. In Brithop, author Justin A. Williams finds new hope in an often-neglected figure: the British rapper. Through themes of nationalism, history, subculture, politics, humor and identity, Brithop explores multiple forms of politics in rap discourses from Wales, Scotland and England. Featuring rappers and groups such as The Streets, Goldie Lookin Chain, Akala, Lowkey, Stanley Odd, Loki, Speech Debelle, Lady Sovereign, Shadia Mansour, Shay D, Stormzy, Sleaford Mods, Riz MC and Lethal Bizzle, Williams investigates how rappers in the UK respond to the "postcolonial melancholia" of post-Empire Britain. Brithop shows a rich, multifaceted cultural reality reflective of both the postcolonial condition of the UK and the importance of localism within its varying cultures.

DKK 879.00
1

Brithop - Justin A. (senior Lecturer In Music Williams - Bog - Oxford University Press Inc - Plusbog.dk

Brithop - Justin A. (senior Lecturer In Music Williams - Bog - Oxford University Press Inc - Plusbog.dk

With ongoing debates on Scottish independence, immigration, Britain''s place in the EU, multiculturalism, national identity and the specter of a past Empire complicating ethnically-defined notions of "Britishness," the Kingdom seems far from United. As a cultural force that is often discussed as giving voice to the voiceless and empowering marginalized communities, hip-hop has become a space in which to explore and debate these issues-defining global community while celebrating locality. In Brithop, author Justin A. Williams finds new hope in an often-neglected figure: the British rapper. Through themes of nationalism, history, subculture, politics, humor and identity, Brithop explores multiple forms of politics in rap discourses from Wales, Scotland and England. Featuring rappers and groups such as The Streets, Goldie Lookin Chain, Akala, Lowkey, Stanley Odd, Loki, Speech Debelle, Lady Sovereign, Shadia Mansour, Shay D, Stormzy, Sleaford Mods, Riz MC and Lethal Bizzle, Williams investigates how rappers in the UK respond to the "postcolonial melancholia" of post-Empire Britain. Brithop shows a rich, multifaceted cultural reality reflective of both the postcolonial condition of the UK and the importance of localism within its varying cultures.

DKK 255.00
1

The Obama Victory - Kate Kenski - Bog - Oxford University Press Inc - Plusbog.dk

The Obama Victory - Kate Kenski - Bog - Oxford University Press Inc - Plusbog.dk

Barack Obama''s stunning victory in the 2008 presidential election will go down as one of the more pivotal in American history. Given America''s legacy of racism, how could a relatively untested first-term senator with an African father defeat some of the giants of American politics? In The Obama Victory, Kate Kenski, Bruce Hardy, and Kathleen Hall Jamieson draw upon the best voter data available, The National Annenberg Election Survey, as well as interviews with key advisors to each campaign, to illuminate how media, money, and messages shaped the 2008 election. In a crisp, incisive narrative, the authors identify the candidates'' major themes-Maverick versus Mc-Same; Change versus Tax and Spend Liberal, etc.-and then apply them to the five main periods of the campaign: the early summer; the period from the vice presidential nominations through the conventions; the financial meltdown from mid-September to mid-October; the two weeks after the final debate; and the final week. Throughout, they explain how both sides worked the media to reinforce or combat images of McCain as too old and Obama as not ready; how Obama used a very effective rough-and-tumble radio and cable campaign that was largely unnoticed by the mainstream media; how the Vice Presidential nominees impacted the campaign; how McCain''s age and Obama''s race affected the final vote, and much more. Analyzing each nominee''s broadcast, cable, and radio spending, the authors conclude that Obama''s media campaign was more savvy than McCain''s, and that early voting and the complete collapse of campaign finance reform will change elections for years to come.Briskly written and filled with surprising insights, The Obama Victory goes beyond opinion to offer the most authoritative account available of precisely how and why Obama won the presidency.

DKK 303.00
1

The Obama Victory - Bruce W. Hardy - Bog - Oxford University Press Inc - Plusbog.dk

The Obama Victory - Bruce W. Hardy - Bog - Oxford University Press Inc - Plusbog.dk

Barack Obama''s stunning victory in the 2008 presidential election will go down as one of the more pivotal in American history. Given America''s legacy of racism, how could a relatively untested first-term senator with an African father defeat some of the giants of American politics? In The Obama Victory, Kate Kenski, Bruce Hardy, and Kathleen Hall Jamieson draw upon the best voter data available, The National Annenberg Election Survey, as well as interviews with key advisors to each campaign, to illuminate how media, money, and messages shaped the 2008 election. In a crisp, incisive narrative, the authors identify the candidates'' major themes--Maverick versus Mc-Same; Change versus Tax and Spend Liberal, etc.--and then apply them to the five main periods of the campaign: the early summer; the period from the vice presidential nominations through the conventions; the financial meltdown from mid-September to mid-October; the two weeks after the final debate; and the final week. Throughout, they explain how both sides worked the media to reinforce or combat images of McCain as too old and Obama as not ready; how Obama used a very effective rough-and-tumble radio and cable campaign that was largely unnoticed by the mainstream media; how the Vice Presidential nominees impacted the campaign; how McCain''s age and Obama''s race affected the final vote, and much more. Analyzing each nominee''s broadcast, cable, and radio spending, the authors conclude that Obama''s media campaign was more savvy than McCain''s, and that early voting and the complete collapse of campaign finance reform will change elections for years to come. Briskly written and filled with surprising insights, The Obama Victory goes beyond opinion to offer the most authoritative account available of precisely how and why Obama won the presidency.

DKK 1170.00
1