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Fabrication and size control of gold nanopartic...
64,90 € *
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Fabrication and size control of gold nanoparticles by laser ablation ab 64.9 EURO

Anbieter: ebook.de
Stand: 08.12.2019
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Opto-Injection Into Single Living Cells Byfemto...
82,90 CHF *
ggf. zzgl. Versand

This dissertation presents a novel technique of delivering membrane impermeable molecules into single living cells with the assistance of femtosecond (fs) near-infrared (NIR) laser pulses. This technique promises several major advantages, namely, very high transfection efficiency, high cell survival rate (~100%) and fully preserved cell viabilities. In this work, the system for fs NIR opto-injection was designed and built. Successful fs NIR opto-injection has been performed on several cell systems including single mammalian cells, marine animal eggs, and human cancer cells cultured in a tissue-like environment. The connections between laser parameters and cell responses were explored. Dye uptake rate of the target cells was observed to depend on incident laser intensity. Pore size was found dependent on incident laser intensity. The conclusion was made that laser-induced breakdown and plasma-induced ablation in cell membrane are the physical principles that govern the process of fs NIR opto-injection.

Anbieter: Orell Fuessli CH
Stand: 08.12.2019
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Nanoparticles by Continuous-wave Laser Ablation...
130,00 CHF *
ggf. zzgl. Versand

Laser ablation in liquid is becoming an important technique for the generation of nanoparticles (NPs). Until now only pulsed lasers have been used; this is a pioneer work, using high-power, high-brightness continuous-wave (CW) fibre laser ablation in liquid, for the generation of NPs. A mechanism is proposed based on experimental observations, including high-speed imaging and emission spectroscopic analysis of the ablated plume. Three different target materials (Titanium, Nickel and Alpha-aluminium-oxide), submerged in either water or sodium dodecyl sulphate (SDS) solution at various concentrations were used. The characterisation of the generated metal-oxide NPs, in terms of size, size-distribution, shape, chemical composition and phase structure was carried out by UV-Vis photo-spectroscopy, transmission electron microscopy (TEM), high-resolution TEM with energy-dispersive X-rays spectroscopy and X-ray diffraction. This study paves a route towards a new application of CW fibre lasers. The book is useful to engineering students, professional engineers, researchers, academicians and scientists in materials, NPs characterisation, mechanical, laser processing and related disciplines.

Anbieter: Orell Fuessli CH
Stand: 08.12.2019
Zum Angebot
Minimally Invasive Tumor Therapies
162,90 CHF *
ggf. zzgl. Versand

In the age of the World Wide Web, informed patients continue to surprise oncologists with detailed questions about popular tumor therapies. Although minimally invasive tumor therapies (MITT) have become daily clinical practice for palliative treatment of liver tumors, the acceptance of these palliative modalities still varies enormously. In addition, promising results have been published for in situ ablation of lung metastases, bone tumors, and renal cell carcinoma. This book gives an up-to-date overview of the popular techniques and clinical results of MITT, with a clarification of the actual indications including the size, tumor entities, and clinical benefits. Moreover, the book focuses on the prospectives and limitations of imaging methods - ultrasound, computed tomography, and magnetic resonance imaging - used for MITT. TOC:Image guidance of minimal invasive tumor therapies: Use of imaging modalities for the guidance of minimal invasive tumor therapies. Development of navigation systems for image-guided laparoscopic tumor resections in liver surgery.- Methods: Radiofrequency ablation: the percutaneous approach. Radiofrequency ablation: the surgical approach. Laser-induced thermotherapy (LITT).- Clinical results: Liver metastases. Percutaneous ablation of hepatocellular carcinoma. Lung tumors. Renal tumors. Thermal ablation in bone tumors.

Anbieter: Orell Fuessli CH
Stand: 08.12.2019
Zum Angebot
Second-Generation HTS Conductors
233,90 CHF *
ggf. zzgl. Versand

The discovery of high temperature superconductors (HTS) in 1986 by two IBM scientists led to an unprecedented explosion of research and development efforts world-wide because of the significant potential for practical applications offered by these materials. However, the early euphoria created by the exciting prospects was dampened by the daunting task of fabricating these materials into useful forms with acceptable superconducting properties. Progress towards this goal has been hindered by many intrinsic materials problems, such as weak-links, flux-creep, and poor mechanical properties. The above problems led to the development of the Second-Generation of HTS wires. Three methods were invented to produce flexible metallic substrates, which were also crystallographically biaxially textured, and resembled a long, mosaic single crystal. The first method invented is the Ion-Beam-Assisted-Deposition (IBAD). The second method developed was the Inclined-Substrate-Deposition (ISD). The third method invented is called the Rolling-assisted-biaxially-textured-substrates (RABiTS). The book is divided into four sections. The first section discusses the three methods to fabricate biaxially textured substrates, upon which, epitaxial YBCO or other HTS materials can be deposited to realize a single-crystal-like HTS wire. The second section includes chapters on various methods of HTS deposition such as pulsed laser ablation (PLD), thermal co-evaporation, sputtering, pulsed electron beam deposition, ex-situ BaF2 by co-evaporation flowed by annealing, chemical solution based ex-situ processes, jet vapor deposition, metal organic chemical vapor deposition (MOCVD), and liquid phase epitaxy (LPE). The third section includes detailed chapters on other HTS materials such as the various Tl-based and Hg-based conductors. These Second-Generation HTS conductors, also referred to as 'Coated conductors' represent one of the most exciting developments in HTS technology. HTS wires based on this technology have the potential to carry 100-1000 times the current without resistance losses of comparable copper wire. HTS power equipment based on these HTS conductors has a potential to be half the size of conventional alternatives with the same or higher power rating and less than one half the energy losses. Upgrading of the world-wide electric power transmission and distribution with HTS based devices can significantly help in meeting the growing demand for electricity world-wide. There is little question that superconducting technology based on the Next-Generation HTS Superconducting Wires will make a substantial impact on the way we generate, transmit, distribute and use electric power. Of course the question is - how soon?

Anbieter: Orell Fuessli CH
Stand: 08.12.2019
Zum Angebot
Opto-Injection Into Single Living Cells Byfemto...
62,99 € *
ggf. zzgl. Versand

This dissertation presents a novel technique of delivering membrane impermeable molecules into single living cells with the assistance of femtosecond (fs) near-infrared (NIR) laser pulses. This technique promises several major advantages, namely, very high transfection efficiency, high cell survival rate (~100%) and fully preserved cell viabilities. In this work, the system for fs NIR opto-injection was designed and built. Successful fs NIR opto-injection has been performed on several cell systems including single mammalian cells, marine animal eggs, and human cancer cells cultured in a tissue-like environment. The connections between laser parameters and cell responses were explored. Dye uptake rate of the target cells was observed to depend on incident laser intensity. Pore size was found dependent on incident laser intensity. The conclusion was made that laser-induced breakdown and plasma-induced ablation in cell membrane are the physical principles that govern the process of fs NIR opto-injection.

Anbieter: Thalia AT
Stand: 08.12.2019
Zum Angebot
Nanoparticles by Continuous-wave Laser Ablation...
69,99 € *
ggf. zzgl. Versand

Laser ablation in liquid is becoming an important technique for the generation of nanoparticles (NPs). Until now only pulsed lasers have been used; this is a pioneer work, using high-power, high-brightness continuous-wave (CW) fibre laser ablation in liquid, for the generation of NPs. A mechanism is proposed based on experimental observations, including high-speed imaging and emission spectroscopic analysis of the ablated plume. Three different target materials (Titanium, Nickel and Alpha-aluminium-oxide), submerged in either water or sodium dodecyl sulphate (SDS) solution at various concentrations were used. The characterisation of the generated metal-oxide NPs, in terms of size, size-distribution, shape, chemical composition and phase structure was carried out by UV-Vis photo-spectroscopy, transmission electron microscopy (TEM), high-resolution TEM with energy-dispersive X-rays spectroscopy and X-ray diffraction. This study paves a route towards a new application of CW fibre lasers. The book is useful to engineering students, professional engineers, researchers, academicians and scientists in materials, NPs characterisation, mechanical, laser processing and related disciplines.

Anbieter: Thalia AT
Stand: 08.12.2019
Zum Angebot
Minimally Invasive Tumor Therapies
130,89 € *
ggf. zzgl. Versand

In the age of the World Wide Web, informed patients continue to surprise oncologists with detailed questions about popular tumor therapies. Although minimally invasive tumor therapies (MITT) have become daily clinical practice for palliative treatment of liver tumors, the acceptance of these palliative modalities still varies enormously. In addition, promising results have been published for in situ ablation of lung metastases, bone tumors, and renal cell carcinoma. This book gives an up-to-date overview of the popular techniques and clinical results of MITT, with a clarification of the actual indications including the size, tumor entities, and clinical benefits. Moreover, the book focuses on the prospectives and limitations of imaging methods - ultrasound, computed tomography, and magnetic resonance imaging - used for MITT. TOC:Image guidance of minimal invasive tumor therapies: Use of imaging modalities for the guidance of minimal invasive tumor therapies. Development of navigation systems for image-guided laparoscopic tumor resections in liver surgery.- Methods: Radiofrequency ablation: the percutaneous approach. Radiofrequency ablation: the surgical approach. Laser-induced thermotherapy (LITT).- Clinical results: Liver metastases. Percutaneous ablation of hepatocellular carcinoma. Lung tumors. Renal tumors. Thermal ablation in bone tumors.

Anbieter: Thalia AT
Stand: 08.12.2019
Zum Angebot
Second-Generation HTS Conductors
190,39 € *
ggf. zzgl. Versand

The discovery of high temperature superconductors (HTS) in 1986 by two IBM scientists led to an unprecedented explosion of research and development efforts world-wide because of the significant potential for practical applications offered by these materials. However, the early euphoria created by the exciting prospects was dampened by the daunting task of fabricating these materials into useful forms with acceptable superconducting properties. Progress towards this goal has been hindered by many intrinsic materials problems, such as weak-links, flux-creep, and poor mechanical properties. The above problems led to the development of the Second-Generation of HTS wires. Three methods were invented to produce flexible metallic substrates, which were also crystallographically biaxially textured, and resembled a long, mosaic single crystal. The first method invented is the Ion-Beam-Assisted-Deposition (IBAD). The second method developed was the Inclined-Substrate-Deposition (ISD). The third method invented is called the Rolling-assisted-biaxially-textured-substrates (RABiTS). The book is divided into four sections. The first section discusses the three methods to fabricate biaxially textured substrates, upon which, epitaxial YBCO or other HTS materials can be deposited to realize a single-crystal-like HTS wire. The second section includes chapters on various methods of HTS deposition such as pulsed laser ablation (PLD), thermal co-evaporation, sputtering, pulsed electron beam deposition, ex-situ BaF2 by co-evaporation flowed by annealing, chemical solution based ex-situ processes, jet vapor deposition, metal organic chemical vapor deposition (MOCVD), and liquid phase epitaxy (LPE). The third section includes detailed chapters on other HTS materials such as the various Tl-based and Hg-based conductors. These Second-Generation HTS conductors, also referred to as 'Coated conductors' represent one of the most exciting developments in HTS technology. HTS wires based on this technology have the potential to carry 100-1000 times the current without resistance losses of comparable copper wire. HTS power equipment based on these HTS conductors has a potential to be half the size of conventional alternatives with the same or higher power rating and less than one half the energy losses. Upgrading of the world-wide electric power transmission and distribution with HTS based devices can significantly help in meeting the growing demand for electricity world-wide. There is little question that superconducting technology based on the Next-Generation HTS Superconducting Wires will make a substantial impact on the way we generate, transmit, distribute and use electric power. Of course the question is - how soon?

Anbieter: Thalia AT
Stand: 08.12.2019
Zum Angebot