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The Effect of Laser Induced Thermal Ablation on...
78,99 € *
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The Effect of Laser Induced Thermal Ablation on Liver Tumours ab 78.99 € als Taschenbuch: . Aus dem Bereich: Bücher, Wissenschaft, Medizin,

Anbieter: hugendubel
Stand: 10.08.2020
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Photoionization and Photo-Induced Processes in ...
105,60 € *
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Provides comprehensive coverage of laser-induced ionization processes for mass spectrometry analysis Drawing on the expertise of the leading academic and industrial research groups involved in the development of photoionization methods for mass spectrometry, this reference for analytical scientists covers both the theory and current applications of photo-induced ionization processes. It places widely used techniques such as MALDI side by side with more specialist approaches such as REMPI and RIMS, and discusses leading edge developments in ultrashort laser pulse desorption, to give readers a complete picture of the state of the technology. Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications starts with a complete overview of the fundamentals of the technique, covering the basics of the gas phase ionization as well as those of laser desorption and ablation, pulse photoionization, and single particle ionization. Numerous application examples from different analytical fields are described that showcase the power and the wide scope of photo ionization in mass spectrometry. -The first general reference book on photoionization techniques for mass spectrometry -Examines technologies and applications of gas phase resonance-enhanced multiphoton ionization mass spectrometry (REMPI-MS) and gas phase resonance ionization mass spectrometry (RIMS) -Provides complete coverage of popular techniques like MALDI -Discusses the current and potential applications of each technology, focusing on process and environmental analysis Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications is an excellent book for spectroscopists, analytical chemists, photochemists, physical chemists, and laser specialists.

Anbieter: buecher
Stand: 10.08.2020
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Photoionization and Photo-Induced Processes in ...
105,60 € *
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Provides comprehensive coverage of laser-induced ionization processes for mass spectrometry analysis Drawing on the expertise of the leading academic and industrial research groups involved in the development of photoionization methods for mass spectrometry, this reference for analytical scientists covers both the theory and current applications of photo-induced ionization processes. It places widely used techniques such as MALDI side by side with more specialist approaches such as REMPI and RIMS, and discusses leading edge developments in ultrashort laser pulse desorption, to give readers a complete picture of the state of the technology. Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications starts with a complete overview of the fundamentals of the technique, covering the basics of the gas phase ionization as well as those of laser desorption and ablation, pulse photoionization, and single particle ionization. Numerous application examples from different analytical fields are described that showcase the power and the wide scope of photo ionization in mass spectrometry. -The first general reference book on photoionization techniques for mass spectrometry -Examines technologies and applications of gas phase resonance-enhanced multiphoton ionization mass spectrometry (REMPI-MS) and gas phase resonance ionization mass spectrometry (RIMS) -Provides complete coverage of popular techniques like MALDI -Discusses the current and potential applications of each technology, focusing on process and environmental analysis Photoionization and Photo-Induced Processes in Mass Spectrometry: Fundamentals and Applications is an excellent book for spectroscopists, analytical chemists, photochemists, physical chemists, and laser specialists.

Anbieter: buecher
Stand: 10.08.2020
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The Effect of Laser Induced Thermal Ablation on...
78,99 € *
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The Effect of Laser Induced Thermal Ablation on Liver Tumours ab 78.99 EURO

Anbieter: ebook.de
Stand: 10.08.2020
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The Effect of Laser Induced Thermal Ablation on...
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Laser thermal ablation (LTA) is an in situ ablative techniquethat induces heat destruction of liver tumours. Despite increasingclinical use of LTA, reports of long-term outcomes and limitationsof treatment in specific cohorts of patients with liver tumours arelacking. In addition, the mechanisms of action of therapy are notfully understood. This book highlights some of the clinical resultsand limitations of LTA in the treatment of colorectal livermetastases and examines its mechanisms of action. Overall, there isa high incidence of local tumour recurrence following thermalablation due to incomplete tumour destruction and regional andextrahepatic tumour recurrences. The mechanisms of action ofthermal ablation appear to be multifactorial with interplay ofseveral factors. An understanding and manipulation of the processesmay further ensure complete tumour destruction and reduce local anddistal recurrences. This may encourage more widespread use of thistechnology for the treatment of liver tumours. This book should beespecially useful for health professionals and researchers with aninterest in the ever expanding field of thermal ablation of livertumours.

Anbieter: Dodax
Stand: 10.08.2020
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Parallel Diffractive Multi-beam Ultrafast Laser...
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Ultrafast lasers have been widely employed for material micro/nano processing with little thermal damage. Due to the ultra high intensity of ultrashort pulses, nonlinear absorption can be induced at the focus leading to highly localised material ablation or modification. This is now opening up applications ranging from integrated optics, through multi-photon induced refractive index engineering to precision surface micro-structuring. To ensure the non-thermal processing, input pulse energy must be kept around micro-joule level. However, running at kilohertz repetition rate, many ultrafast laser systems can provide milli-joule level output. Therefore, significant energy attenuation causes a great deal of energy loss. With this limitation in mind, a multi-beam ultrafast laser processing, where the milli-joule output is split into many desired diffracted beams, is proposed in this book. The multi-beam patterns are generated by phase modulation through a Spatial Light Modulator (SLM) and can be applied in real time with synchronized scanning methods. The results demonstrate high precision parallel ultrafast laser micro/nano fabrication with greatly increased efficiency and throughput.

Anbieter: Dodax
Stand: 10.08.2020
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Fundamental study: Space-temporal evolution of ...
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After decades of development, laser ablation has become an important technique for a large number of applications such as thin film deposition, nanoparticle synthesis, micromachining, chemical analysis, etc. Experimental and theoretical studies have been conducted to understand the physical mechanisms of the laser ablation processes and their dependence on the laser wavelength, pulse duration, ambient gas and target material. The present work describes and investigates the relative importance of the physical mechanisms influencing the characteristics of aluminum laser-induced plasmas. The general scope of this research encompasses a thorough study of the interplay between the plasma plume dynamics and the ambient gas in which they expand. This is achieved by imaging and analyzing the temporal and spatial evolution the plume in terms of spectral intensity, electron density and excitation temperature within various environments, extending from vacuum to atmospheric pressure (760 Torr), in an inert gas like argon and heluim, as well as in a chemically active gas like nitrogen.

Anbieter: Dodax
Stand: 10.08.2020
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Laser Induced Plasmas & Optical Diagnostics
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Laser induced plasmas are of significant interest in a large domain of research and industrial applications including ablation, micro-machining, photochemistry, fission, fusion, materials characterization, aerospace, combustion and space applications. This book covers the fundamentals of laser induced gas breakdown for infrared and ultraviolet laser radiation. The basic principles and theories of laser induced plasma formation by multi-photon ionization and cascade ionization process are discussed in detail. The laser breakdown thresholds that are extended to microwave frequencies through quantum correction and universal scaling processes are conferred elaborately. Laser shadowgraphy diagnostics to study the spatio-temporal shock wave propagation and hydrodynamic behavior as well as to measure plasma electron temperature, Two-wavelength laser interferometry to measure spatio-temporal plasma density and optical emission spectroscopy diagnostics to measure plasma rotational and vibrational temperatures of the laser induced plasmas are elaborately covered. The modeling of plasma decay through diffusion, attachment, 2-body and 3-body recombination processes is demonstrated.

Anbieter: Dodax
Stand: 10.08.2020
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OPTO-INJECTION INTO SINGLE LIVING CELLS BY FEMT...
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This dissertation presents a novel technique ofdelivering membrane impermeable molecules into singleliving cells with the assistance of femtosecond (fs)near-infrared (NIR) laser pulses. This techniquepromises several major advantages, namely, very hightransfection efficiency, high cell survival rate( 100%) and fully preserved cell viabilities. In this work, the system for fs NIR opto-injectionwas designed and built. Successful fs NIRopto-injection has been performed on several cellsystems including single mammalian cells, marineanimal eggs, and human cancer cells cultured in atissue-like environment. The connections betweenlaser parameters and cell responses were explored.Dye uptake rate of the target cells was observed todepend on incident laser intensity. Pore size wasfound dependent on incident laser intensity. Theconclusion was made that laser-induced breakdown andplasma-induced ablation in cell membrane are thephysical principles that govern the process of fs NIRopto-injection.

Anbieter: Dodax
Stand: 10.08.2020
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