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  • 1
    Online Resource
    Online Resource
    Bristol :Institute of Physics Publishing,
    Keywords: Electronic books.
    Description / Table of Contents: This book discusses in detail the phenomena of Pre-equilibrium emission in statistical nuclear reactions. It is intended to help early-career nuclear physicists and doctoral students to understand the phenomenon of pre-equilibrium emission in nuclear reactions. It is ideal for postgraduate students studying accelerator-based experimental physics and dedicated researchers working in the field of nuclear reaction studies.
    Type of Medium: Online Resource
    Pages: 1 online resource (260 pages)
    Edition: 1st ed.
    ISBN: 9780750350792
    Series Statement: IOP Ebooks Series
    Language: English
    Note: Intro -- Preface -- Acknowledgments -- Author biographies -- Professor B P Singh -- Professor Manoj K Sharma -- Professor R Prasad -- Symbols -- Symbols -- Chapter 1 Introduction to the history of nuclear reactions and motivation for this book -- 1.1 Background -- 1.2 Nuclear atom -- 1.3 The first transmutation reaction -- 1.4 Discovery of neutron -- 1.5 Artificial radioactivity -- 1.6 Strong nuclear force -- 1.7 New isotopes -- 1.8 Discovery of fission -- 1.9 Self-sustained fission chain reaction -- 1.10 Fusion reaction -- 1.11 Accelerators -- 1.12 Particle accelerators in India -- 1.13 Radiation detectors -- 1.14 Study of reaction mechanism -- 1.15 Statistical reactions -- 1.16 Experimental verification of independence of formation and decay of compound nucleus -- 1.17 Particle spectra -- 1.18 Experimentally measured energy spectrum of ejectiles -- 1.19 Motivation -- Bibliography -- Chapter 2 Characteristics of binary nuclear reactions -- 2.1 Introduction -- 2.2 Classification of nuclear reactions -- 2.3 Conservation laws for nuclear reactions -- 2.4 Quantities not conserved in nuclear reactions -- 2.5 Nuclear reactions versus chemical reactions -- 2.6 Energetics of nuclear reactions -- 2.7 Centre-of-mass frame of reference -- 2.8 Cross-section -- 2.8.1 Nuclear scattering cross-section -- 2.8.2 Experimental determination of nuclear reaction cross-section -- 2.8.3 Experimental requirements for nuclear reaction studies -- Bibliography -- Chapter 3 Theoretical formulation of compound and pre-compound emission -- 3.1 Introduction -- 3.2 Compound reaction mechanism -- 3.3 Verification of Bohr's independent hypothesis -- 3.4 Theoretical formulation -- 3.4.1 Parameters of the entrance channel -- 3.4.2 Parameters of exit channel -- 3.5 Hauser-Feshbach formulations -- 3.6 Weisskopf-Ewing formulation -- 3.7 Nuclear level density. , 3.7.1 Models for level density -- 3.7.2 Sources of information about level density -- 3.7.3 Parameterization -- 3.8 Pre-equilibrium emission -- 3.8.1 Some early evidence of pre-equilibrium emission -- Bibliography -- Chapter 4 Models for pre-equilibrium emission -- 4.1 Introduction -- 4.2 Intra-nuclear cascade model (INC) -- 4.3 The exciton model -- 4.3.1 The state densities -- 4.3.2 Equilibrium solution of master equation -- 4.3.3 Integrated emission rates -- 4.3.4 Never-come-back approximation -- 4.3.5 Gamma emission -- 4.3.6 Emission of protons and neutrons -- 4.3.7 Two-component exciton states -- 4.3.8 Conservation of angular momentum -- 4.3.9 The generalised exciton model -- 4.3.10 Question mark about the assumption of exciton model -- 4.4 Harp-Miller-Berne (HMB) model -- 4.5 Hybrid model -- 4.5.1 Geometry dependent hybrid model -- 4.6 Quantum mechanical model for pre-equilibrium process -- 4.6.1 MSD theory of FKK -- 4.6.2 Multi-step compound processes (MSCs) -- 4.7 Computer codes -- Bibliography -- Chapter 5 Experimental measurements -- 5.1 Introduction -- 5.2 Neutron induced reactions -- 5.2.1 Measurement and analysis of cross-sections -- 5.2.2 Measurements and analysis of energy spectra of light charged particles -- 5.3 Proton induced reactions -- 5.3.1 Measurements and analysis of EFs -- 5.3.2 Measurement and analysis of energy spectra of neutrons -- 5.4 Alpha induced reactions -- 5.4.1 Measurement and analysis of EFs -- 5.4.2 Measurements of neutron energy spectra in α,xn reactions -- 5.5 Heavy-ion induced reactions -- 5.5.1 Measurement and analysis of EFs with 7Li and 11B beams: 7Li+93Nb -- 7Li+89Y and 11B+181Ta systems -- 5.5.2 Measurement and analysis of EFs with 12C beam: 12C+169Tm, 12C+128Te and 12C+ 197Au systems. , 5.5.3 Measurement and analysis of EFs with 14N, 16O, and 19F beams: 14N+181Ta, 16O+159Tb, 16O+169Tm, 16O+181Ta and 19F+169Tm systems -- 5.5.4 Pre-equilibrium emission from recoil range distribution: 16O+159Tb system -- 5.6 In-beam studies of the pre-equilibrium emission -- 5.6.1 Forward-to-backward yield ratios of reaction residues -- 5.6.2 Spin distribution and angular momentum -- Bibliography -- Chapter 6 Data analysis, parameterisation of pre-equilibrium fraction -- 6.1 Introduction -- 6.2 Pre-equilibrium fraction -- 6.3 Energy dependence in light-particle-induced reactions -- 6.3.1 In-proton-induced reactions -- 6.3.2 In α-induced reactions -- 6.4 Dependence of relative magnitudes of ƒR and ƒCN on energy -- 6.5 Systematics of pre-equilibrium fraction in odd Z and odd A nuclei -- 6.5.1 In the case of A = 139-203 nuclei -- 6.5.2 In case of A = 63-109 nuclei -- 6.6 Systematics for heavy-ion induced reactions -- 6.7 Pre-equilibrium component from recoil range distribution (RRD) -- 6.8 Pre-equilibrium component from spin distribution measurement -- 6.9 Pre-equilibrium emission and synthesis of SHE -- 6.10 Future perspective -- Bibliography.
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  • 2
    Online Resource
    Online Resource
    Cambridge :Cambridge University Press,
    Keywords: Heavy ion collisions. ; Particle acceleration. ; Electronic books.
    Description / Table of Contents: A comprehensive text in the field of experimental accelerator physics covering necessary details for performing experiments with accelerated HI beams. It contains a detailed analysis of results which leads to a better understanding of incomplete fusion (ICF) reactions at low energies.
    Type of Medium: Online Resource
    Pages: 1 online resource (322 pages)
    Edition: 1st ed.
    ISBN: 9781108628198
    DDC: 539.757
    Language: English
    Note: Cover -- Fundamentals and Applications of Heavy Ion Collisions -- Title Page -- Copyright Page -- Contents -- Figures -- Tables -- Preface -- Acknowledgements -- Chapter 1: Introduction -- 1.1 Background -- 1.1.1 Artificial radioactivity -- 1.1.2 Neutron era -- 1.2 Classification of Ions and Research with Accelerated Light Ions -- 1.3 Accelerated Heavy Ions -- 1.4 Special Features of Heavy Ions -- 1.5 Motivation for this Book -- Chapter 2: Theoretical Tools, Reaction Mechanism and Computer Codes -- 2.1 Complete Fusion of Heavy Ions -- 2.1.1 Hauser-Feshbach formalism for spinless particles -- 2.1.2 Level width and level separation -- 2.1.3 Evaporation spectra -- 2.1.4 Width fluctuation correction -- 2.1.5 Effective transmission coefficients -- 2.1.6 De-excitation sequence of the compound nucleus -- 2.2 The Pre-equilibrium Emission in Statistical Nuclear Reactions -- 2.2.1 The exciton model -- 2.2.2 The Harp-Miller-Berne (HMB) model -- 2.2.3 The hybrid model -- 2.2.4 The intra-nuclear cascade model -- 2.2.5 The totally quantum mechanical model of pre-equilibrium emission -- 2.3 The Incomplete Fusion of Heavy Ions -- 2.3.1 The hot spot model -- 2.3.2 The promptly-emitted particles (PEPs) model -- 2.3.3 The sum rule model -- 2.3.4 Breakup fusion model (BUF) -- 2.4 Computer Codes -- 2.4.1 Computer code PACE 4 -- 2.4.2 Computer code CASCADE -- 2.4.3 Computer codes GNASH and McGNASH -- 2.4.4 Computer code ALICE 91 and ALICE IPPE -- 2.4.5 The computer code EMPIRE -- Chapter 3: Experimental Details and Formulations -- 3.1 Introduction -- 3.2 Formulations for Measuring Cross-section -- 3.3 Experimental Details -- 3.3.1 Off-beam experiments -- 3.3.2 Pelletron accelerator at the IUAC, New Delhi -- 3.3.3 Experimental details for the measurement of excitation functions -- 3.4 Target Preparation -- 3.5 Sample Irradiation by HI Beam. , 3.6 Post-irradiation Analysis -- 3.6.1 Calibration of HPGe detector and efficiency measurement -- 3.6.2 Identification of reaction residues -- 3.7 Measurement of Recoil Range Distribution (RRD) of Heavy Residues -- 3.7.1 Target and catcher foil preparation for RRD measurements -- 3.8 Measurement of Angular Distribution of Residues -- 3.9 In-beam Experiments -- 3.9.1 Target preparation -- 3.9.2 Experimental setup used -- 3.9.3 The gamma detector array (GDA) setup -- 3.9.4 Charged particle detector array (CPDA) setup -- 3.9.5 Irradiations for spin distribution measurement -- Chapter 4: Measurements -- 4.1 Measurement of Excitation Functions and their Analysis -- 4.1.1 Reactions initiated by 12C beam -- 4.1.2 Reactions initiated by 13C beam -- 4.1.3 Reactions initiated by 14N beam -- 4.1.4 Reactions initiated by 16O beam -- 4.1.5 Reactions initiated by 18O beam -- 4.1.6 Reactions initiated by 19F beam -- 4.2 Measurement of Recoil Range Distributions (RRD) and their Analysis -- 4.2.1 Recoil range distribution for the system 12C+159Tb -- 4.2.2 Recoil range distribution for the system 16O+159Tb -- 4.2.3 Recoil range distribution for the system 16O+169Tm -- 4.2.4 Recoil range distribution for the system 16O+181Ta -- 4.3 Measurement of Angular Distribution of Heavy Residues and their Analysis -- 4.3.1 Angular distribution of residues emitted from the system 16O+169Tm -- 4.3.2 Angular distributions of the residues emitted from 16O+27Al system -- 4.4 Measurement of Spin Distribution and Feeding Intensity Profiles -- 4.4.1 Measurement of spin distribution and feeding intensity for the system 16O+169Tm -- 4.4.2 Measured spin distribution and feeding intensity profile for the 12C+169Tm system -- 4.5 Measurement of Pre-equilibrium Component in Heavy Ion Reactions at < -- 10 MeV/n Energy -- 4.5.1 Measurement of pre-equilibrium component in the 16O+169Tm system. , 4.5.2 Measurement of pre-equilibrium components in 16O+159Tb, 16O+169Tm and 16O +181Ta systems -- Chapter 5: Results and Conclusions -- 5.1 Incomplete Fusion below 10 MeV/A Energy and its Dependence on Entrance Channel Parameters -- 5.1.1 Dependence of ICF on projectile structure and incident energy -- 5.1.2 Dependence of ICF on mass asymmetry -- 5.1.3 Dependence of ICF on a Q value of the projectile -- 5.1.4 Dependence of ICF on the Coulomb factor (ZP.ZT) -- 5.1.5 Angular momentum (l) distribution and mean input angular momentum for complete and incomplete fusion reactions -- 5.2 Pre-equilibrium Emission in Heavy Ion Reactions at Energies < -- 10 MeV/A -- 5.3 Applications of Heavy Ion Reactions at Energy < -- 10 MeV/A -- 5.3.1 Study of high spin states populated via incomplete fusion -- 5.3.2 Incomplete fusion and synthesis of super heavy elements -- 5.2.3 Incomplete fusion and production of isotopes of special interest -- Appendix -- References -- Index.
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  • 3
    Keywords: Computer networks. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (276 pages)
    Edition: 1st ed.
    ISBN: 9783030206154
    Series Statement: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering Series ; v.276
    DDC: 4.5999999999999996
    Language: English
    Note: Intro -- Preface -- Organization -- Contents -- Performance Analysis of Femtocell on Channel Allocation -- Abstract -- 1 Introduction -- 2 System Configuration -- 3 Design and Analysis -- 3.1 Models and Their Blocking Probabilities -- 3.2 Other Performance Parameters -- 4 Results and Discussion -- 5 Conclusion -- References -- System Level Performance Analysis of Designed LNA and Down Converter for IEEE 802.11ad Receiver -- Abstract -- 1 Introduction -- 2 Design of Receiver Components -- 2.1 Design of Low Noise Amplifier -- 2.2 Design of RF Down Converter -- 2.3 Nonlinearity Issue of Down Converter -- 3 System Level Development of IEEE 802.11ad Receiver -- 4 Results and Discussions -- 4.1 Performance of LNA and Down Converter -- 4.2 Impact of Nonlinearity of Down Converter on Receiver Performance -- 5 Conclusion -- Funding Information. -- References -- Optimizing Multi Gateway Wireless Mesh Networks for Throughput Improvement -- Abstract -- 1 Introduction -- 2 Proposed Architecture -- 3 Optimizing the IEEE 802.11s WMN -- 3.1 Partitioning the WMN -- 3.2 Load Management Scheme (LMS) Among the Partitions of WMN for QoS -- 3.3 Matrix Model of Partitioned WMN and Its Implementation to Validate Integrity of WMN -- 4 Performance Results and Discussion -- 4.1 Analysis of the IMW -- 4.2 Analysis of Average Packet Transfer Delay in WMN -- 4.3 Analysis of Packet Loss -- 5 Conclusions -- 6 Future Work -- References -- Direction Finding Capability in Bluetooth 5.1 Standard -- Abstract -- 1 Introduction to Bluetooth Standard -- 2 Terminologies and Methodology Used for Direction Finding -- 2.1 General Requirements for Target and Tracker Device -- 2.2 Angle of Departure -- 3 Proposed Packet Design -- 4 Results and Discussion -- 4.1 Hardware Testing Results for Direction Finding Capability -- 5 Conclusion and Future Work -- Acknowledgment -- References. , An Investigation of Transmission Properties of Double-Exponential Pulses in Core-Clad Optical Fibers for Communication Application -- Abstract -- 1 Introduction -- 2 Characterization of Gaussian and Double Exponential Pulses -- 2.1 Verification of Simulation Technique Using Gaussian Pulse -- 2.2 Gaussian and Double-Exponential Pulses Used -- 2.3 Dispersion Characteristics of Double Exponential Pulses in Single Mode Fibers -- 2.4 Dispersion Characteristics of Double Exponential Pulses in Multi-mode Fibers -- 3 Results and Discussion -- 4 Conclusion -- References -- Hybrid Energy Efficient and QoS Aware Algorithm to Prolong IoT Network Lifetime -- 1 Introduction -- 2 Related Work -- 3 Problem Statement -- 3.1 Lifetime of the Network -- 3.2 QoS Stipulation -- 4 Network Architecture -- 4.1 Network Model -- 4.2 Energy Model -- 4.3 Route Discovery Process -- 5 Proposed HEEQA Algorithm -- 6 Simulation and Results -- 6.1 Simulation Model -- 6.2 Simulation Results -- 6.3 Variation of Energy Level -- 6.4 Average End-to-End Delay -- 6.5 Delivery Ratio -- 6.6 Transmission Overhead -- 6.7 Network Lifetime -- 6.8 Network Throughput -- 7 Conclusions and Future Work -- References -- Data Integration and Management in Indian Poultry Sector -- Abstract -- 1 Introduction -- 2 State of Art -- 3 Proposed System -- 4 Implementation -- 5 Conclusion and Future Work -- References -- CA-RPL: A Clustered Additive Approach in RPL for IoT Based Scalable Networks -- 1 Introduction -- 2 Related Work -- 3 Proposed Work -- 4 Result and Discussion -- 5 Conclusion -- References -- Implementation of Trilateration Based Localization Approach for Tree Monitoring in IoT -- Abstract -- 1 Introduction -- 2 Proposed System -- 3 Implementation and Simulation -- 4 Result and Analysis -- 5 Conclusion and Future Work -- References. , Expert System Design for Automated Prediction of Difficulties in Securing Airway in ICU and OT -- Abstract -- 1 Introduction -- 2 Recent Related Work -- 3 Proposed Methodology -- 3.1 Proposed Expert System Approach -- 3.2 Architecture of Proposed Expert System Design -- 3.3 Architecture of Airway Management Physical Parameters -- 3.4 Patients Physical Airway Parameters Associated with Difficult Mask Ventilation -- 3.5 Rulebase Design -- 3.6 Rulebase for Mask Ventilation -- 4 Expert System Implementation -- 4.1 Software Tools Used -- 4.2 Patient Data Processing -- 5 Results Analysis -- 6 Conclusions -- References -- A Comparative Study on Load Balancing Algorithms in Software Defined Networking -- Abstract -- 1 Introduction -- 2 Background and Related Work -- 2.1 SDN Architecture -- 3 Load Balancing Architecture -- 4 Result and Discussion -- 5 Conclusion and Future Work -- Acknowledgment -- References -- CloudSDN: Enabling SDN Framework for Security and Threat Analytics in Cloud Networks -- Abstract -- 1 Introduction -- 2 Background and Motivation -- 2.1 SDN-Enabled Cloud Computing -- 2.2 SDNFV Converged Architecture -- 2.3 SDN - OpenStack Interaction Model -- 2.4 New Opportunities and Challenges in Cloud Security -- 2.5 Related Work -- 3 Proposed Architecture -- 3.1 Architecture Overview -- 3.2 Multi-plane Collaborative Defense -- 3.3 Security Service Function Chaining -- 3.4 Operation of CloudSDN -- 4 Design and Implementation -- 4.1 OpenStack Neutron SDN Layers -- 4.2 OpenvSwitch SDN Data Plane -- 4.3 OpenDaylight SDN Control Plane -- 4.4 Implementation -- 5 Preliminary Experimentation -- 5.1 Comparison with Traditional Snort-Iptables IDS/IPS -- 5.2 Comparison with Classic OpenFlow SDN -- 5.3 Comparison of Linux Bridge/Classic OpenStack/CloudSDN -- 6 Conclusions and Future Work -- References. , NB-FTBM Model for Entity Trust Evaluation in Vehicular Ad Hoc Network Security -- 1 Introduction -- 2 Related Work -- 3 Entity Trust Model (ETM) -- 3.1 Entity Identification (E-ID) Module -- 3.2 Entity Reputation (E-RP) Module -- 4 Fuzzy Trust Boundary Model -- 4.1 E-ID Trust Boundary -- 4.2 E-RP Trust Boundary -- 5 Decision making in NB-FTBM -- 5.1 Naive Bayesian theorem -- 6 Performance Evaluation -- 7 Conclusion -- References -- Threshold Cryptography Based Light Weight Key Management Technique for Hierarchical WSNs -- Abstract -- 1 Introduction -- 2 Related Works and Problem Statement -- 3 Network Model -- 3.1 Key Generation Phase -- 3.2 Construction Phase -- 4 Proposed Hierarchal Threshold Scheme -- 4.1 Sharing Phase -- 4.2 Recovering Phase -- 4.3 Network Initialization Phase -- 4.4 Intra Cluster Pairwise Key Generation -- 5 Simulation Results -- 6 Conclusion -- References -- Denoising Epigraphical Estampages Using Nested Run Length Count -- Abstract -- 1 Introduction -- 2 Literature Survey -- 3 Proposed Method -- 4 Results and Discussion -- 5 Conclusion -- Acknowledgement -- References -- Improving Transition Probability for Detecting Hardware Trojan Using Weighted Random Patterns -- Abstract -- 1 Introduction -- 2 Proposed Methodology -- 2.1 Generating the Circuit's Netlist -- 2.2 Determining the Transition Probability for Each Gate -- 2.3 Identifying Suitable Insertion Point -- 2.4 Application of Weighted Random Patterns -- 3 Weighted Random Pattern -- 3.1 Introduction to Weighted Random Number Generator -- 3.2 Weight Random Pattern Number Generator Algorithm -- 3.3 Algorithm for Detection of HTS -- 4 Experimental Results -- 5 Conclusion -- References -- Prefix Tree Based MapReduce Approach for Mining Frequent Subgraphs -- 1 Introduction -- 2 Related Work -- 3 Proposed Work -- 3.1 Data Pre-processing -- 3.2 Candidate Generation. , 3.3 Support Counting -- 4 Experimental Validation and Verification -- 5 Conclusion -- References -- A Taxonomy of Methods and Models Used in Program Transformation and Parallelization -- 1 Introduction -- 2 Taxonomy of Methods Used in Program Transformation -- 2.1 Instruction Count Reduction -- 2.2 Locality Improvement -- 2.3 Memory Latency Reduction -- 2.4 Parallalization Enablement -- 2.5 Transformation Enablement -- 3 Taxonomy of Methods Used in Program Parallelization -- 3.1 Simplicity and Ease of Use -- 3.2 Performance -- 3.3 Granularity -- 3.4 Program Structure or Module -- 3.5 Scalability -- 3.6 Novelty -- 3.7 Orchestration and Management -- 4 Taxonomy of Models Used in Transformation and Parallelization -- 4.1 Tree Based Models -- 4.2 Graph Based Models -- 4.3 Machine Learning Based Models -- 4.4 Models Based on Algebra -- 4.5 Models Based on Statistics -- 4.6 Models Based on Enumeration -- 4.7 Models Based on Heuristics -- 5 A Graphical Taxonomy of Methods and Models Used in Transformation and Parallelization -- 5.1 A Graphical Taxonomy of Methods Used in Transformation -- 5.2 A Graphical Taxonomy of Methods Used in Parallelization -- 5.3 A Graphical Taxonomy of Models Used in Transformation and Parallelization -- 6 Conclusion -- References -- Time Bound Robot Mission Planning for Priority Machine Using Linear Temporal Logic for Multi Goals -- Abstract -- 1 Introduction -- 2 Linear Temporal Logic -- 3 Proposed Methodology -- 3.1 Overall Solution Design -- 3.2 Triangulation -- 4 Mission Solver -- 5 Results and Discussions -- 5.1 Simulation Scenario 1 -- 5.2 Simulation Scenario 2 -- 5.3 Simulation Scenario 3 -- 6 Conclusions -- Acknowledgement -- References -- Author Index.
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  • 4
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    In:  http://aquaticcommons.org/id/eprint/16152 | 12051 | 2015-02-08 09:35:45 | 16152 | Society of Fisheries Technologists, India
    Publication Date: 2021-06-29
    Description: The importance of the ocean as a source of cheap protein food is too well-known to be emphasised. In recent years there has been a tremendous increase in the fishing activity in all maritime nations and during the last few years the total world production has markedly grown. This study explains the importance of a planned exploitation according to scientific principles to preserve the availability and natural fluctuations in the abundance of stocks of marine fish and other commercially important organisms.
    Keywords: Fisheries ; Management ; integrated fisheries ; fishery management ; resource conservation ; fishery development ; marine fisheries ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 37-40
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 44 (1979), S. 3643-3652 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 7520-7527 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Intense heliumlike sodium 11-A(ring) line radiation is required to resonantly photopump a neon plasma in the Na-Ne soft x-ray laser scheme. The implosion of a NaF capillary-discharge plasma with a 3-MA peak current is used to produce a power exceeding 100 GW in this Heα line. The power is optimized by varying both the initial radius of the 3-cm-long NaF plasma column and the time delay between the capillary current and the generator current. Maximum power of 115 GW is obtained for implosions which occur just after peak current. Burn-through of the heliumlike sodium stage is evident in spectroscopic measurements where sodium Lyα line emission is 2–4 times stronger than Heα emission. Mass loadings of 200–400 μg/cm are inferred from measured implosion times and initial plasma diameters. The nearly pure density dependence of the Heα power and the nearly pure temperature dependence of the Lyα/Heα ratio allow the state of the plasma to be determined by measuring both quantities on a single shot. For these implosions, electron temperatures are 350–560 eV and total ion densities approach 1020 cm−3. The mass load inferred from implosion dynamics is consistent with the ion density deduced from spectral measurements.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Implosions of 2.5-cm-diam neon gas shells on a 1.2 μs quarter-period, 3 MA driver, FALCON, have produced no more than 7.6 kJ of kilovolt neon K-shell radiation. The incorporation of a plasma opening switch produces faster current pulses: up to 1.8 MA in 190 ns. With the higher rate of rise of current, neon gas puffs have produced up to 13.5 kJ of kilovolt K-shell radiation. Numerical calculations indicate that this increase in radiation is due to the achievement of a higher kinetic energy per ion at higher current levels. Spectroscopic measurements confirm that a significant fraction of the plasma is heated into the K-shell ionization states and that the faster current pulses increase this fraction up to 40%.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 61 (1990), S. 2807-2809 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: X-ray pinhole images are formed on microchannel plate striplines to time-resolve Z-pinch emissions. Applications include a study of Z-pinch linearity necessary for x-ray lasers, the evolution of hot spots, and a study of Z-pinch heating mechanisms. In particular, multiple pinholes per strip with different filters allow the spatial and temporal variation of different temperature regions to be studied.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 61 (1990), S. 2804-2806 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A stripline gated microchannel plate framing camera is used as a detector in a crystal spectrometer. Typical 10 ns time gates are fast enough to record the evolution of both heating and expansion of Z pinches. By introducing spatially imaging cross slits, an x-ray spectrum from a Z pinch has been simultaneously space and time resolved.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. A multicentre trial was conducted to compare the efficacy and side-effects of an intramuscularly administered PGE2 analogue and vacuum aspiration in women with a delay of up to 21 days in the expected onset of menses. A total of 473 such women were randomly allocated to treatment with either 16-phenoxy-W-17, 18, 19, 20-tetranor PGE2 methyl sulfonylamide (three intramuscular injections of 0.5 mg at 3-h intervals) or vacuum aspiration, and the outcome of therapy assessed 1, 2 and 6–8 weeks later. Retrospective analysis of hCG levels indicated that 419 (88.6%) women had been pregnant at the time of treatment. With few exceptions, administration of the PGE2 analogue induced vaginal bleeding in both pregnant and non-pregnant women but the duration and subjectively perceived amount of bleeding were greater than after vacuum aspiration. Both treatments were equally effective. In pregnant women the overall frequency of complete abortion was 91% for prostaglandin treatment and 94% for vacuum aspiration. If non-pregnant women were included, the respective success rates (i.e. percentages of women not pregnant 2 weeks after treatment) were 92% and 95%. Gastrointestinal side-effects and lower abdominal pain requiring intramuscular analgesia were more common after prostaglandin therapy than following vacuum aspiration in both pregnant and non-pregnant women.
    Type of Medium: Electronic Resource
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