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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Isotope dilution analysis. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (197 pages)
    Edition: 1st ed.
    ISBN: 9781483160924
    Language: English
    Note: Front Cover -- Isotope Dilution Analysis -- Copyright Page -- Table of Contents -- Preface -- Chapter 1. Principles, Types and Theory of Isotope Dilution Analysis -- 1.1. General principles -- 1.2. Classification of the methods of IDA -- 1.3. Types of IDA -- 1.4. Precision, accuracy and sensitivity of IDA -- 1.5. Advantages, drawbacks, trends -- 1.6. References -- Chapter 2. Experimental Techniques, Separation and Mass Determination -- 2.1. Reagents and tracers -- 2.2. Separation of Components -- 2.3. Determination of the amount of substance separated -- 2.4. References -- Chapter 3. Inorganic Applications -- 3.1. Determination of various elements -- 3.2. Selected procedures -- 3.3. References -- Chapter 4. Applications in Organic Chemistry and Biochemistry -- 4.1. Alcohols and ethers -- 4.2. Carboxylic acids, acid chlorides and anhydrides -- 4.3. Sulpho derivatives -- 4.4. Proteins and amino acids -- 4.5. Steroids -- 4.6. Vitamin B12 -- 4.7. Penicillin -- 4.8. Insecticides -- 4.9. Other applications in organic chemistry and biochemistry -- 4.10. References -- Chapter 5. Isotope Dilution Analysis with Stable Isotopes -- 5.1. Introduction -- 5.2. Methods for the determination of isotopic composition. Analysis by mass spectrometry -- 5.3. Fundamentals and technique -- 5.4. Practical applications -- 5.5. References -- Chapter 6. Special Applications of Isotope Dilution -- 6.1. Volume determination -- 6.2. Determination of solubility -- 6.3. Determination of radioactive contaminants -- 6.4. Determination of the content of isotopic carriers in radioactive preparations -- 6.5. Determination of dissociation constants -- 6.6. Studies on reaction rates and equilibria -- 6.7. Determination of the capacity of ion exchangers -- 6.8. Determination of the coefficient of self-absorption and of specific activity -- 6.9. Measurement of flow rates. , 6.10. References -- Index.
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  • 2
    Online Resource
    Online Resource
    San Diego :Elsevier,
    Keywords: Nuclear activation analysis. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (243 pages)
    Edition: 1st ed.
    ISBN: 9781483280042
    DDC: 543.088
    Language: English
    Note: Front Cover -- Introduction to Radioanalytical Physics -- Copyright Page -- Table of Contents -- PREFACE -- SYMBOLS AND ABBREVIATIONS -- CHAPTER 1. NUCLEAR REACTIONS -- 1.1 Introduction -- 1.2 Kinematics and consequences -- 1.3 Classification of nuclear reactions -- 1.4 Reaction mechanisms -- 1.5 Nuclear reaction cross sections -- REFERENCES -- CHAPTER 2. INTERACTION OF CHARGED PARTICLE BEAMS WITH SOLID SAMPLES -- 2.1 Ionization following charged particle bombardment -- 2.2 X-ray emission following charged particle bombardment -- 2.3 Energy loss of charged particles in matter -- 2.4 Channeling effects -- REFERENCES -- CHAPTER 3. ANALYSIS BY ELASTIC SCATTERING OF CHARGED PARTICLES -- 3.1 Introduction -- 3.2 Kinematics -- 3.3 Elastic scattering cross section -- 3.4 Backscattering from solid samples -- 3.5 Applications of backscattering to elemental analysis -- REFERENCES -- CHAPTER 4. ANALYSIS BY GAMMA-RAY DETECTION -- 4.1 Gamma-rays from nuclear reactions -- 4.2 Kinematical effects -- 4.3 Nuclear reaction mechanisms -- 4.4 Prompt gamma-ray yield from thick sample bombardment -- 4.5 Elemental analysis by prompt gamma-ray detection -- 4.6 Elemental analysis by delayed methods -- REFERENCES -- CHAPTER 5. ANALYSIS BY CHARGED PARTICLE AND NEUTRON SPECTROSCOPY -- 5.1 Introduction -- 5.2 Reaction cross sections -- 5.3 Kinematics of rearrangement collisions -- 5.4 Particle spectra -- 5.5 Solid sample bombardment -- 5.6 Analytical applications -- REFERENCES -- CHAPTER 6. ANALYTICAL APPLICATIONS OF NUCLEAR REACTIONS -- 6.1 Introduction -- 6.2 Sensitivity -- 6.3 Light element determination by delayed techniques -- 6.4 Light element determination by prompt radiation detection -- 6.5 Heavy elements -- 6.6 Typical applications -- REFERENCES -- TABLES -- AUTHOR INDEX -- SUBJECT INDEX.
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  • 3
    Online Resource
    Online Resource
    Amsterdam :Elsevier Science & Technology,
    Keywords: Liquid chromatography. ; Liquid chromatography -- Bibliography. ; Electronic books.
    Description / Table of Contents: EXTRACTION CHROMATOGRAPHY.
    Type of Medium: Online Resource
    Pages: 1 online resource (585 pages)
    Edition: 1st ed.
    ISBN: 9780080858029
    Series Statement: Issn Series ; v.Volume 2
    DDC: 543.08
    Language: English
    Note: Front Cover -- Extraction Chromatography -- Copyright Page -- Contributors -- Preface -- Contents -- Chapter 1. Theoretical Aspects Of Extraction Chromatography -- 1. General comments -- 2. The influence of the support on the thermodynamic activities of the extractant and extracted complex -- 3. Main factors influencing the distribution coefficient and selectivity -- 4. Dynamic factors in extraction chromatography -- Chapter 2. Correlation Between Extraction Chromatography And Liquid-Liquid Extraction -- 1. Theoretical correlation between liquid-liquid extraction and extraction chromatography -- 2. General considerations on the comparison of liquid-liquid extraction and extraction chromatographic results -- 3. Similarities in the practice of liquid-liquid extraction and extraction chromatography in each type of extraction system -- 4. Concluding remarks -- Chapter 3. Techniques In Column Extraction Chromatography -- Introduction -- 1. Standardization of support material -- 2. Loading of the support material with stationary phase -- 3. Bed dimensions, column types and column packing procedures -- 4. Determination of column parameters -- 5. Working techniques in operating extraction chromatographic columns -- 6. Detection methods -- Chapter 4. Stationary Phases In Extraction Chromatography -- Introduction -- 1. General performances of stationary phases -- 2. Systematic survey of the extractants used as stationary phases -- Chapter 5. Inert Supports In Column Extraction Chromatography -- 1. Requirements for supports in partition chromatography -- 2. Materials used for supports -- 3. The influence of the structure and size of the support particles on the efficiency of chromatographic columns -- 4. Properties of the different supports -- 5. Loading of the stationary phase on the supports. Regeneration of supports. , 6. Supports for preparative and continuous chromatography -- Chapter 6. Extraction Chromatography Of Metallic And Non-Metallic Ions -- Introduction -- 1. Radiochemical separations and production of carrier-free radioisotopes. The separation of mother-daughter pairs -- 2. The separation of alkali and alkaline earth metals -- 3. The separation of I B and IIB sub-group elements -- 4. The separation of aluminium group metals -- 5. The separation of IVB sub-group elements -- 6. The separation of chromium sub-group elements -- 7. The separation of iron sub-group elements -- 8. The separation of noble metals -- 9. The separation of halide ions -- 10. The separation of other ions -- Chapter 7. Extraction Chromatography Of Actinides -- 1. Introduction -- 2. Liquid-liquid extraction of actinides -- 3. Extraction chromatography of actinides -- 4. Examples of actinide separations by extraction chromatography -- Chapter 8. Extraction Chromatography Of Lanthanides -- Introduction -- 1. Extraction of lanthanides -- 2. The double-double effect and its significance for the lanthanide and actinide separation -- 3. The enthalpies of lanthanide extraction and the influence of temperature on the separation factor -- 4. Survey of the lanthanide separations -- 5 . Resolution ability of columns used for the separation of lanthanides -- Chapter 9. Extraction Chromatography Of Fission Products -- 1. Introduction -- 2. Separation systems and procedures -- 3. Reprocessing analysis -- 4. Burn-up Analysis -- 5. Fission products in nuclear chemistry -- 6. Commercial fission product recovery -- Chapter 10. Use Of Extraction Chromatography In Radiotoxicology -- 1. General remarks -- 2. Analytical procedures -- 3. Conclusions -- Chapter 11. Chelating Agents As Stationary Phase In Extraction Chromatography -- 1. Introduction -- 2. Theory of extraction by chelating agents. , 3. Experimental technique -- 4. Chelating agents and systems used -- Chapter 12. Use Of Extraction Chromatography For Trace Metal Preconcentration And Separation -- 1. Introduction -- 2. Experimental techniques -- 3. Individual and collective preconcentration and separation of trace impurities -- 4. Effects of certain factors on the preconcentration and separation of elements by column extraction chromatography -- 5. Conclusions -- Chapter 13. Use Of Cellular Plastics In Extraction Chromatography -- I. Introduction -- 2. Cellular plastics as extraction chromatographic supports -- 3. The application of foam-filled columns in some inorganic and radiochemical separations -- Chapter 14. Laminar Techniques As An Aid In Planning Column Extraction Chromatographic Separations -- 1. Introduction -- 2. Experimental techniques in laminar extraction chromatography -- 3. Correlation between Rf values and distribution coefficients -- 4. Correlation between Rf values and retention volumes -- 5. Planning column separations from laminar results -- 6. Literature survey of available Rf spectra -- 7. Conclusions -- Chapter 15. Bibliography Of Extraction Chromatography -- 1. Introduction -- 2. Selection of papers -- 3. Bibliographies -- 4. Reviews and books -- 5. Original publications on laminar extraction chromatography -- 6. Original publications on column extraction chromatography -- 7. Tabular survey of experimental data on column extraction chromatographic investigations -- 8. Stationary phases used in column extraction chromatography -- 9. Support materials used in column extraction chromatography -- 10. Author index -- 11. Corporate author index -- Subject Index.
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  • 4
    Keywords: Forschungsbericht
    Description / Table of Contents: Flip Chip technology, underfilling, encapsulation, material characterization, reliability analysis, thermal conductivity
    Type of Medium: Online Resource
    Pages: Online-Ressource ([2], 20 p., 1,32 Mb.) , ill., graphs
    Edition: [Elektronische Ressource]
    Language: German , English
    Note: Differences between the printed and electronic version of the document are possible. - Contract BMBF 03 N 3058 E. - joint project number 01013309. - Engl. abstract under title: Characterization of underfill materials regarding thermal and thermomechanical properties and analysis of the reliability behavior of Flip Chip assemblies "PUMA-IZM" within the project "PUMA". - nBibliography p. 20 , Also available as printed version , Systemvoraussetzungen: Acrobat Reader.
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  • 5
    Publication Date: 2020-02-12
    Description: On 2012 May 20 and 29, two damaging earthquakes with magnitudes Mw 6.1 and 5.9, respectively, struck the Emilia-Romagna region in the sedimentary Po Plain, Northern Italy, causing 26 fatalities, significant damage to historical buildings and substantial impact to the economy of the region. The earthquake sequence included four more aftershocks with Mw ≥ 5.0, all at shallow depths (about 7–9 km), with similar WNW–ESE striking reverse mechanism. The timeline of the sequence suggests significant static stress interaction between the largest events. We perform here a detailed source inversion, first adopting a point source approximation and considering pure double couple and full moment tensor source models. We compare different extended source inversion approaches for the two largest events, and find that the rupture occurred in both cases along a subhorizontal plane, dipping towards SSW. Directivity is well detected for the May 20 main shock, indicating that the rupture propagated unilaterally towards SE. Based on the focal mechanism solution, we further estimate the co-seismic static stress change induced by the May 20 event. By using the rate-and-state model and a Poissonian earthquake occurrence, we infer that the second largest event of May 29 was induced with a probability in the range 0.2–0.4. This suggests that the segment of fault was already prone to rupture. Finally, we estimate peak ground accelerations for the two main events as occurred separately or simultaneously. For the scenario involving hypothetical rupture areas of both main events, we estimate Mw = 6.3 and an increase of ground acceleration by 50 per cent. The approach we propose may help to quantify rapidly which regions are invested by a significant increase of the hazard, bearing the potential for large aftershocks or even a second main shock.
    Keywords: 550 - Earth sciences
    Language: English
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 6
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    In:  Eos, Transactions American Geophysical Union
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/article
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  • 7
    Publication Date: 2021-12-21
    Description: In a joint project called OMEGA, between GFZ-Potsdam and the Istituto Nazionale di Geofisica e Vulcanologia (INGV), an experimental seismic monitoring system was installed in 2015 near the power plants of the geothermal area of Mt. Amiata (central Italy). The main objectives of this three-year experiment are: i) to monitor the seismic activity connected to any type of seismicity inside the geothermal field, ii) to verify if the low local seismicity rate near Mt. Amiata reported by the INGV bulletin is natural, or due to the sparse distribution of the INGV network, and iii) to discriminate natural from possibly induced seismicity. The eight-station network was extended by a sevenelement seismic array for the first four weeks. The aim of this paper is to present the first automatic hypocentre locations of the joint network/array analysis.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 8
    Publication Date: 2020-02-13
    Description: On 26 April 1917, an earthquake Mw 6.0 (known as the Monterchi earthquake) struck the upper Tiber basin, central Italy. This Quaternary basin is situated on the hanging wall of a segmented low‐angle normal fault (LANF) named the Alto Tiberina fault (ATF), whose capability to act with stick‐slip behavior is debated. We reanalyzed instrumental historical data and performed a relocation of the hypocenter along with a reassessment of the scalar moment and magnitudes (⁠Mw and Ms⁠); we calculate the fault radius and stress drop and propose a focal solution based on first‐arrival polarities. The methodologies that we applied strongly take into account the intrinsic uncertainties present in the historical data to obtain solutions that provide well‐defined error estimates. The hypocentral solution is consistent with the known macroseismic scenario and is plausible in terms of root mean square (rms) and error ellipse. The calculated focal depth at ≈8  km⁠, even considering the depth uncertainty of ±4  km⁠, locates the earthquake source inside the ATF footwall. The Mw distribution (median Mw 5.8) suggests an overestimate of the macroseismic Mw probably due to seismic amplification caused by site effects. A preferred focal solution (strike 60/dip 84/ rake −162) defines an antiapenninic‐oriented fault, with predominantly right‐lateral slip. Our results strongly suggest that the 1917 Monterchi earthquake did not nucleate on one of the splays of the low‐angle ATF but rather was generated by a deeper seismic source, which could be referred to as a structural transfer zone responsible for the Quaternary LANF segmentation.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 9
    Publication Date: 2022-03-28
    Description: The temporary Extended Pollino Seismic Experiment (FDSN network code Y4) monitored the earthquake swarm in the Pollino Range region, Italy, between September 2014 and April 2015. The experiment followed the Pollino Seismic Experiment, 2012-2014 (network code: 4A) [1] in the same area, further enhancing the detection and analysis capabilities there. It was part of a collaborative effort made by the German Research Centre for Geosciences (GFZ) and the Istituto Nazionale di Geofisica e Vulcanologia (INGV) within the CCMP-Pompei, FEFI and NERA projects. The Pollino Range region is located at the transition from the Southern Apennines chain to the Calabrian arc. Striking a volume of about 20x20x15 km, the swarm started in October 2010, culminated in a Mw=5.2 on 25 October 2012 and has continued since with a variable rate of activity. The area represents a seismic gap as there are no documented historical M〉6 earthquakes during the last thousand years. The tectonic structures of the area are poorly known. The Y4 network consisted of 19 stations including 14 broadband and five short-period instruments. All instruments were provided by the Geophysical Instrument Pool Potsdam (GIPP) and the CCMP-Pompei project at GFZ and INGV. They were complemented by another four temporary IV stations installed by INGV. The short-period stations had Mark L-4C3D sensors with EDR digitizers. The broadband stations were equipped with STS2.5 seismometers and RefTek RT130S digitizers or Güralp CMG-ESP or Güralp CMG-40T seismometers and EDR digitizers. Eleven broadband (CSA0 to CSA10) were installed in a small-aperture detection array in the west of the range. The other eight stations (broadband: CSB, CSE, CSD0 and short period: CSF, CSG, CSH, CSI, CSK) formed a network in the swarm area. The array and the network stations recorded in continuous mode at 200 Hz. The sensors were buried in the ground at 0.5 m depth except for CSB, CSE and CSD0 which were installed on the surface. High-precision station coordinates were obtained by using differential GPS measurements. The data have been used to analyze the earthquakes and seismogenetic structures and to discern the characteristics of the swarm sequence. Waveform data will be fully open after April 2017. [1] Pollino Seismic Experiment, 2012-2014, doi:10.14470/9N904956
    Language: English
    Type: info:eu-repo/semantics/workingPaper
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  • 10
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    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Publication Date: 2023-08-09
    Description: The recent advances in the hardware development of instruments that record gradients of the seismic wavefield made several novel measurement strategies at active volcanoes possible. Especially the recording of rotational motions is a prominent candidate to solve some of the problems that are eminent in volcano monitoring. Near field recordings of volcano-induced events often suffer from unaccounted effects of local tilt and unknown shallow velocity structure. In addition, if the station number is limited moment tensor inversions (MTI) are very often unconstrained. However, possible advantages of gradient measurements in these fields come also with a price: the wavefield gradient is very sensitive to local site conditions/heterogeneities. To investigate the advantages and drawbacks of the combined recording of translational and rotational motion measurements (6C), we designed an experiment using six blueSeis-3A rotational motion sensors together with six TrilliumCompact seismometers at Stromboli volcano, Italy. In order to estimate the responses of different sites as well as to evaluate the performance of 6C recordings for location and moment tensor inversion, the stations were distributed along two rings at different height levels. Standard estimates of backazimuth and 1D-velocity profiles using 6C are performed. The results are compared to synthetic data which involve growing complexity of the modelled structure. The results of this tests confirm that local heterogeneities play a key role in the complexity of the recorded gradient wavefield. This complexity needs to be accounted for in order to be able to perform a MTI which should reduce the ambiguity using sparse seismic networks.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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