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Fluoroscopy Reduction Techniques for Catheter A...
103,99 € *
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Fluoroscopy Reduction Techniques for Catheter Ablation of Cardiac Arrhythmias ab 103.99 € als epub eBook: . Aus dem Bereich: eBooks, Fachthemen & Wissenschaft, Medizin,

Anbieter: hugendubel
Stand: 24.11.2020
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Fluoroscopy Reduction Techniques for Catheter A...
105,99 € *
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Fluoroscopy Reduction Techniques for Catheter Ablation of Cardiac Arrhythmias ab 105.99 EURO

Anbieter: ebook.de
Stand: 24.11.2020
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Spectroscopic studies in solid helium
89,90 € *
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First implantations of Ba and Cs atoms into solid He by means of laser ablation were done in 1993 at MPQ (Max Planck Institut für Quantenoptik). Solid He is very well suited for high precision spin physics. The implanted atoms diffuse only very slowly out of the investigation region (few hours) in contrast to superfluid He (less than one second). Atoms in solid He are mainly lost due to dimer and cluster formation. A constant number of foreign atoms can be obtained by applying pulses from the same Nd:YAG laser used for the ablation process, thereby destroying the clusters. Longitudinal spin relaxation times of 1 second for Cs in solid He and magnetic resonance linewidths of 2,kHz (two orders of magnitude smaller than in superfluid He) were measured. The lines were broadened by residual magnetic fields and later, linewidths of only 20,Hz were obtained after reduction of magnetic field inhomogeneities. Doped solid He is such a complex and unique system that it has led to many interesting discoveries, some of them are discussed in detail in this work.

Anbieter: Dodax
Stand: 24.11.2020
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Hypertrophic Cardiomyopathy
163,42 € *
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This extensively updated edition provides a comprehensive review of hypertrophic cardiomyopathy, the most common genetic disorder of the heart characterized by dysfunctional contractility at the sarcomere level. The disease produces abnormal and oftentimes focal hypertrophy on a macroscopic level that further impairs cardiac performance and may lead to life-threatening arrhythmias. This edition provides a practical approach, establishing evidence-based best practice for all scenarios.Hypertrophic Cardiomyopathy provides readers with key points and critical clinical pearls to assist them in managing patients. New chapters have been included on managing hypertension, sleep apnea, coronary artery disease, structural and congenital disease, nutrition and pharmacotherapies. All aspects of treatment are covered - medications, pacemakers and defibrillators, and invasive septal reduction therapy (both surgical myectomy and alcohol septal ablation) - in addition to genetics, family screening, lifestyle concerns, and athletic screening. The practical approach has been reinforced with an expanded emphasis on creating a Center of Excellence, how to facilitate the multi-disciplinary approach, and on case-based reviews and discussions, with each chapter ending with a post-test.This book is an essential text for cardiology professionals from trainee to board-certified physician, and includes important information for interventional cardiologists, cardiac surgeons, cardiac imagers, critical care physicians, sports medicine physicians, genetic counsellors, and electrophysiologists.

Anbieter: Dodax
Stand: 24.11.2020
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Atmospheric Pressure Plasma-Assisted Laser Abla...
28,26 € *
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In the present work, two different approaches for atmospheric pressure plasma-assisted ablation of optical glasses were investigated. For sequential plasma-assisted ablation, the glasses were plasma pre-treated prior to laser ablation. Here, a hydrogenous process gas was applied in order to initiate a plasma-chemical surface modification. It was shown that relevant optical properties and in particular the transmission characteristics of the investigated glasses were modified as a result of such pre-treatment. Several underlying mechanisms were determined: (i) the formation of suboxide layers close to the glass surface, (ii) the implantation of hydrogen into deeper regions of the glass bulk material and (iii) surface roughening due to the plasma pre-treatment. As a result, an enhanced coupling of incoming laser irradiation during subsequent ablation was achieved. This effect allowed a significant reduction of the laser ablation threshold as well as an improved machining quality, i.e. a higher contour accuracy and a reduced surface roughness of the ablated area.For simultaneous plasma-assisted ablation, the laser beam was guided coaxially to an argon plasma beam in order to benefit from plasmaphysical interactions. Due to an additional energy transfer by the plasma during ablation, the ablation rate was notably increased. It was further shown that the plasma beam used for this simultaneous process effects the smoothing of rough optical glass surfaces.The combination of the investigated approaches thus allows providing a novel integrated plasma-assisted ablation process for the micro structuring of optical devices of high quality.

Anbieter: Dodax
Stand: 24.11.2020
Zum Angebot
Atmospheric Pressure Plasma-Assisted Laser Abla...
28,26 € *
ggf. zzgl. Versand

In the present work, two different approaches for atmospheric pressure plasma-assisted ablation of optical glasses were investigated. For sequential plasma-assisted ablation, the glasses were plasma pre-treated prior to laser ablation. Here, a hydrogenous process gas was applied in order to initiate a plasma-chemical surface modification. It was shown that relevant optical properties and in particular the transmission characteristics of the investigated glasses were modified as a result of such pre-treatment. Several underlying mechanisms were determined: (i) the formation of suboxide layers close to the glass surface, (ii) the implantation of hydrogen into deeper regions of the glass bulk material and (iii) surface roughening due to the plasma pre-treatment. As a result, an enhanced coupling of incoming laser irradiation during subsequent ablation was achieved. This effect allowed a significant reduction of the laser ablation threshold as well as an improved machining quality, i.e. a higher contour accuracy and a reduced surface roughness of the ablated area.For simultaneous plasma-assisted ablation, the laser beam was guided coaxially to an argon plasma beam in order to benefit from plasmaphysical interactions. Due to an additional energy transfer by the plasma during ablation, the ablation rate was notably increased. It was further shown that the plasma beam used for this simultaneous process effects the smoothing of rough optical glass surfaces.The combination of the investigated approaches thus allows providing a novel integrated plasma-assisted ablation process for the micro structuring of optical devices of high quality.

Anbieter: Dodax
Stand: 24.11.2020
Zum Angebot
Hypertrophic Cardiomyopathy
163,42 € *
ggf. zzgl. Versand

This extensively updated edition provides a comprehensive review of hypertrophic cardiomyopathy, the most common genetic disorder of the heart characterized by dysfunctional contractility at the sarcomere level. The disease produces abnormal and oftentimes focal hypertrophy on a macroscopic level that further impairs cardiac performance and may lead to life-threatening arrhythmias. This edition provides a practical approach, establishing evidence-based best practice for all scenarios.Hypertrophic Cardiomyopathy provides readers with key points and critical clinical pearls to assist them in managing patients. New chapters have been included on managing hypertension, sleep apnea, coronary artery disease, structural and congenital disease, nutrition and pharmacotherapies. All aspects of treatment are covered - medications, pacemakers and defibrillators, and invasive septal reduction therapy (both surgical myectomy and alcohol septal ablation) - in addition to genetics, family screening, lifestyle concerns, and athletic screening. The practical approach has been reinforced with an expanded emphasis on creating a Center of Excellence, how to facilitate the multi-disciplinary approach, and on case-based reviews and discussions, with each chapter ending with a post-test.This book is an essential text for cardiology professionals from trainee to board-certified physician, and includes important information for interventional cardiologists, cardiac surgeons, cardiac imagers, critical care physicians, sports medicine physicians, genetic counsellors, and electrophysiologists.

Anbieter: Dodax
Stand: 24.11.2020
Zum Angebot
Hypertrophic Cardiomyopathy
249,00 CHF *
ggf. zzgl. Versand

This extensively updated edition provides a comprehensive review of hypertrophic cardiomyopathy, the most common genetic disorder of the heart characterized by dysfunctional contractility at the sarcomere level. The disease produces abnormal and oftentimes focal hypertrophy on a macroscopic level that further impairs cardiac performance and may lead to life-threatening arrhythmias. This edition provides a practical approach, establishing evidence-based best practice for all scenarios. Hypertrophic Cardiomyopathy provides readers with key points and critical clinical pearls to assist them in managing patients. New chapters have been included on managing hypertension, sleep apnea, coronary artery disease, structural and congenital disease, nutrition and pharmacotherapies. All aspects of treatment are covered – medications, pacemakers and defibrillators, and invasive septal reduction therapy (both surgical myectomy and alcohol septal ablation) – in addition to genetics, family screening, lifestyle concerns, and athletic screening. The practical approach has been reinforced with an expanded emphasis on creating a Center of Excellence, how to facilitate the multi-disciplinary approach, and on case-based reviews and discussions, with each chapter ending with a post-test. This book is an essential text for cardiology professionals from trainee to board-certified physician, and includes important information for interventional cardiologists, cardiac surgeons, cardiac imagers, critical care physicians, sports medicine physicians, genetic counsellors, and electrophysiologists.

Anbieter: Orell Fuessli CH
Stand: 24.11.2020
Zum Angebot
Atmospheric Pressure Plasma-Assisted Laser Abla...
33,90 CHF *
ggf. zzgl. Versand

In the present work, two different approaches for atmospheric pressure plasma-assisted ablation of optical glasses were investigated. For sequential plasma-assisted ablation, the glasses were plasma pre-treated prior to laser ablation. Here, a hydrogenous process gas was applied in order to initiate a plasma-chemical surface modification. It was shown that relevant optical properties and in particular the transmission characteristics of the investigated glasses were modified as a result of such pre-treatment. Several underlying mechanisms were determined: (i) the formation of suboxide layers close to the glass surface, (ii) the implantation of hydrogen into deeper regions of the glass bulk material and (iii) surface roughening due to the plasma pre-treatment. As a result, an enhanced coupling of incoming laser irradiation during subsequent ablation was achieved. This effect allowed a significant reduction of the laser ablation threshold as well as an improved machining quality, i.e. a higher contour accuracy and a reduced surface roughness of the ablated area. For simultaneous plasma-assisted ablation, the laser beam was guided coaxially to an argon plasma beam in order to benefit from plasmaphysical interactions. Due to an additional energy transfer by the plasma during ablation, the ablation rate was notably increased. It was further shown that the plasma beam used for this simultaneous process effects the smoothing of rough optical glass surfaces. The combination of the investigated approaches thus allows providing a novel integrated plasma-assisted ablation process for the micro structuring of optical devices of high quality.

Anbieter: Orell Fuessli CH
Stand: 24.11.2020
Zum Angebot