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  • 1
    Online Resource
    Online Resource
    Power Quality Enhancement Using Artificial Intelligence Techniques. (2023)
    Milton :Taylor & Francis Group,
    Details
    Keywords: Artificial intelligence. ; Electronic books.
    Description / Table of Contents: The text discusses the use of optimization algorithms in determining the optimal planning of both distributed generation units and capacitor banks in distribution systems. It also showcases the measure in selecting the optimal parameters of the single tuned filter to mitigate a specific harmonic passband based on a parametric analysis.
    Type of Medium: Online Resource
    Pages: 1 online resource (127 pages)
    Edition: 1st ed.
    ISBN: 9781000844986
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=7184850
    DDC: 621.31/2028563
    Language: English
    Note: Cover -- Half Title -- Title Page -- Copyright Page -- Table of Contents -- Preface -- Acknowledgments -- Authors -- List of Abbreviations and Symbols Used -- Chapter 1 Introduction -- 1.1 General -- 1.2 Book Objectives -- 1.3 Book Contributions -- 1.4 Book Outlines -- Chapter 2 Power Quality in Smart Distribution Systems -- 2.1 Introduction -- 2.2 Smart Distribution Systems -- 2.3 Distributed Generation Units (DGs) -- 2.4 Power Quality in Distribution Systems -- 2.4.1 Power Quality Definition -- 2.4.2 Power Quality Parameters -- 2.4.2.1 Voltage Sag -- 2.4.2.2 Voltage Swell -- 2.4.2.3 Over-Voltage -- 2.4.2.4 Under Voltage -- 2.4.2.5 Voltage Fluctuation -- 2.4.2.6 Transient Voltage -- 2.4.2.7 Noise Disturbance -- 2.4.2.8 Voltage Unbalance -- 2.4.2.9 Power Factor -- 2.4.2.10 Harmonics -- 2.4.3 Impacts of Power Quality Issues -- 2.4.4 Power Quality Solutions -- 2.4.5 Harmonic Standards -- 2.4.6 Harmonic Elimination Techniques -- 2.4.6.1 Passive Filters -- 2.4.6.2 Active Filters -- 2.4.6.3 Harmonic Cancellation -- 2.4.6.4 Isolation Transformer -- 2.4.6.5 Harmonic Blocking -- Chapter 3 Optimization Techniques -- 3.1 Introduction -- 3.2 Optimization Techniques Classification -- 3.2.1 Conventional Optimization Techniques -- 3.2.1.1 Linear Programming -- 3.2.1.2 Quadratic Programming -- 3.2.2 Artificial Intelligence Techniques -- 3.2.2.1 Genetic Algorithm -- 3.2.2.2 Ant Colony Optimization Algorithm -- 3.2.2.3 Proposed Water cycle Algorithm -- 3.3 Mathematical Formulation of WCA -- 3.3.1 Creation of the Initial Population -- 3.3.2 Evaporation Condition -- 3.3.3 Raining Process -- 3.3.4 Constraint Handling -- 3.3.5 Convergence Criteria -- 3.3.6 Steps of WCA -- 3.4 Conclusion -- Chapter 4 Harmonic Load Flow Analysis for Radial Distribution Systems -- 4.1 Introduction -- 4.2 Fundamental Load Flow -- 4.3 Harmonic Load Flow. , 4.4 Single-Tuned Filter Representation in Load Flow -- 4.5 Conclusion -- Chapter 5 Optimal Placement and Sizing of Distributed Generation and Capacitor Banks in Distribution Systems -- 5.1 Introduction -- 5.1.1 Distributed Generation Units Placement -- 5.1.2 Capacitor Banks Placement -- 5.1.3 Hybrid DGs/CBs Placement -- 5.1.4 Chapter Contribution -- 5.2 Problem Formulation -- 5.2.1 Objective Functions -- 5.2.2 System Constraints -- 5.3 Applications -- 5.3.1 Test Distribution Systems -- 5.3.2 WCA for Allocating DGs and CBs in the System Problem -- 5.3.3 Cases Studied -- 5.4 Results and Comments -- 5.4.1 Results of 33-Bus Network -- 5.4.2 Results of 69-Bus Network -- 5.4.3 Results of the Real Distribution System -- 5.5 Conclusion -- Chapter 6 Parametric Analysis of Single-Tuned Harmonic Filter -- 6.1 Introduction -- 6.2 Single-Tuned Filter Design -- 6.2.1 Single-Tuned Filter Designing Steps -- 6.3 Impact of Filter Parameters on Its Characteristics Curve -- 6.3.1 Impact of t[sub(f)] (At Fixed Q[sub(c)] and Q[sub(f)]) -- 6.3.2 Impact of Q[sub(f)] (At Fixed Q[sub(c)] and t[sub(f)]) -- 6.3.3 Impact of Q[sub(c)] (at Fixed Q[sub(f)] and t[sub(f)]) -- 6.4 Single-Tuned Filter Passband -- 6.5 Impact of System Characteristics on Filter Performance -- 6.6 Conclusion -- Chapter 7 Harmonic Mitigation for Distribution Systems with Inverter-Based DGs -- 7.1 Introduction -- 7.2 Problem Formulation -- 7.2.1 Objective Functions -- 7.2.2 System Constraints -- 7.3 Proposed STF Planning Procedure -- 7.4 Applications -- 7.5 Simulation Results and Discussions -- 7.5.1 Test Distribution System -- 7.5.2 Simulation Results -- 7.5.2.1 Results of Case 1 -- 7.5.2.2 Results of Case 2 -- 7.6 Conclusion -- Chapter 8 Conclusions -- 8.1 Conclusions -- References -- Appendix A: Test Systems.
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  • 2
    Online Resource
    Online Resource
    Reactive Oxygen Species : Prospects in Plant Metabolism (2023)
    Singapore : Springer Nature Singapore | Singapore : Imprint: Springer
    Details Availability
    Keywords: Stress (Physiology). ; Plants. ; Plant physiology. ; Botanical chemistry. ; Metabolism, Secondary.
    Description / Table of Contents: Chapter 1:An Update on Reactive Oxygen Species Synthesis and its Potential Application -- Chapter 2 :Mechanism of Reactive Oxygen Species Regulation in Plants -- Chapter 3: Biomolecules Targeted by Reactive Oxygen Species -- Chapter 4: Functions of Reactive Oxygen Species in Improving Agriculture and Future Crop Safety -- Chapter 5: The Ecology of Reactive Oxygen Species Signaling -- Chapter 6: Physiological Impact of Reactive Oxygen Species on Leaf -- Chapter 7: Reactive Oxygen Species: Role in Senescence and Signal Transduction -- Chapter 8: Hazardous Phytotoxic Nature of Reactive Oxygen Species in Agriculture -- Chapter 9: Hormonal Response in Plants Influenced by Reactive Oxygen Species -- Chapter 10: The Dual Role of Reactive Oxygen Species as Signals that Influence Plant Stress Tolerance and Programmed Cell Death -- Chapter 11: ight into the Interaction of Strigolactones, Abscisic Acid, and Reactive Oxygen Species Signals -- Chapter 12: 12. Hydrogen Peroxide: Regulator of Plant Development and Abiotic Stress Response -- Chapter 13:Towards Sustainable Agriculture: Strategies Involving Phyto-Protectants against Reactive Oxygen Species -- chapter 14:Signaling Pathway of Reactive Oxygen Species in Crop Plants under Abiotic Stress -- Chapter 15: Adverse Impact of ROS on Nutrient Accumulation and Distribution in Plants.
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource(XIII, 295 p. 1 illus.)
    Edition: 1st ed. 2023.
    ISBN: 9789811997945
    URL: https://doi.org/10.1007/978-981-19-9794-5
    DOI: 10.1007/978-981-19-9794-5
    Language: English
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  • 3
    Electronic Resource
    Electronic Resource
    Design, synthesis, and testing of potential antisickling agents. 1. Halogenated benzyloxy and phenoxy acids (1982)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 25 (1982), S. 1015-1017 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00351a002
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Production of Cysteic Acid, Taurine and Cystamine under Primitive Earth Conditions (1966)
    [s.l.] : Nature Publishing Group
    Nature 210 (1966), S. 628-629 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Primitive Earth atmospheres, in the presence of added hydrogen sulphide, have been studied by Heyns, Walter and Meyer4. These authors passed a spark through the mixture and found essentially that the hydrogen sulphide had no effect on the syntheses of non-sulphur-containing amino-acids. They ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/210628a0
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  • 5
    Electronic Resource
    Electronic Resource
    Crystal Structures of the Lamellar Calcium Aluminate Hydrates (1967)
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 622-623 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have partially determined the structure of a crystal which approximated in composition to Ca2Al(OH)7.3H2O with some structural CO32-, and which may have been a polytype of hydrocalumite (Ca16Al8(OH)54(CO3).21H2O approximately). Fig 1 Diagram of parts of the structure, seen in projection along ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/215622a0
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  • 6
    Electronic Resource
    Electronic Resource
    Reduction of incubation time in citric acid fermentation by vermiculite (1966)
    Springer
    Cellular and molecular life sciences 22 (1966), S. 806-808 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung In Gegenwart des exfolierten Tonminerals Vermikulit wird die Zitronensäurebildung durchAspergillus niger besonders stimuliert. Dabei wird die Induktionsphase verkürzt sowie die gesamte Gärgeschwindigkeit im messbaren Bereich der Zitronensäurebildungsphase erhöht. Die Stimulierung scheint einzig auf verbesserten Haushalt der Spurenelemente zurückzuführen zu sein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01897428
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  • 7
    Electronic Resource
    Electronic Resource
    Pathological changes in inbred strains of mice following early thymectomy and irradiation (1981)
    Springer
    Cellular and molecular life sciences 37 (1981), S. 1341-1343 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Mice subjected to thymectomy and irradiation were found to develop a range of pathological change in various organs. These changes were accompanied by antibodies to a variety of self-components. The pattern of pathological and autoimmune change was found to vary with the strain. This strain-related expression did not appear to be associated with the major histocompatibility complex (H-2).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01948400
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of packaging materials on photochemical changes in Buffalo milk (1983)
    Springer
    European food research and technology 177 (1983), S. 121-123 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Summary Liquid Buffalo milk was packed in four different types of containes. The packing materials were clear glass, green glass, amber glass and a coextruded wax-leminated paper (Tetra-Pak). These samples, along with exposed and unexposed controls, were kept at 5–6 °C and 16–24 °C for 24 and 16 h, respectively. Chemical analysis revealed significant effects of the packages and light on ascorbic acid contents of milk (P〈0.01). Brown glass gave the best protection followed by Tetra-Pak, green and clear glass bottles. Sensory taste testing of milk samples also showed a congruent pattern of flavour changes in relation to the packing materials tested.
    Notes: Zusammenfassung Flüssige Büffelmilch wurde in 4 verschiedenen Behältern (klares Glas, grünes Glas, braunes Glas und beschichtete Kartonverpackung) verpackt. Diese Muster wurden mit Vergleichsproben bei 5–6 °C für 24 Std bzw. bei 16–24 °C für 16 Std gehalten. Chemische Analysen zeigten signifikante Verpackungs-und Lichteinflüsse auf den Ascorbinsäuregehalt der Milch (P〈0,01). Braunes Glas gab den besten Schutz, gefolgt von der Kartonverpackung und von den grünen bzw. klaren Glasflaschen. Sensorische Geschmackstests zeigten zusammen mit den Geruchsveränderungen Übereinstimmung mit den Verpakkungsmaterialien.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01043077
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  • 9
    Electronic Resource
    Electronic Resource
    Species differences in accumulation of nitrogen pools in phytoplankton (1984)
    Springer
    Marine biology 81 (1984), S. 237-250 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The changes in the intracellular concentrations of nitrate, ammonium, free amino acids, protein, DNA, RNA and total nitrogen were measured in batch cultures of seven species of marine phytoplankton as they progressed from being nitrogen sufficient to being nitrogen starved. After several days of nitrogen starvation, either nitrate or ammonium was added to the cultures, and the measurements were continued for 10 to 36 h. By this means it was possible to assess the long-term and short-term changes in cellular nitrogen compounds and how they relate to phytoplankton nitrogen uptake and growth. Considerable species differences were observed in the amounts and kinds of nitrogen compounds which were stored and the degree to which the utilization of these compounds could support growth if the external nitrogen supply is low or variable. Despite the species variation, the results suggest that the concentrations or ratios of a number of intracellular nitrogen compounds can be used to assess the nitrogen deficiency and/or growth rate of natural phytoplankton populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00393218
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  • 10
    Electronic Resource
    Electronic Resource
    Composition and stability constants of iron- and copper-oxytetracycline chelates (1984)
    Springer
    Microchimica acta 84 (1984), S. 165-175 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Spektrophotometrische Methoden und pH-Messung ermöglichten die Bestimmung der im Titel angeführten Größen. Die Stabilitätskonstanten für die Eisen- bzw. Kupfer-Chelate sind: log/gb1 9,79; logβ 2 7,08; logβ 3 5,92; bzw. logβ 1 7,28; logβ 2 5,59. Die thermodynamischen Parameter dieser Reaktionen und die Art der Chelatbildung des Oxytetracyklin-Moleküls wurden ebenfalls untersucht. Die Reaktion mit Eisen(III) wurde für die Bestimmung von Oxytetracyklin verwendet. Ergebnisse mit einem Variationskoeffizienten 1,6% und einer mittleren Wiederfindungsrate von 98,6% wurden erzielt.
    Notes: Summary The composition and stability constants of iron and copper oxytetracycline chelates are determined by spectrophotometric and pH-metric methods. The stepwise stability constants are logβ 1 9.79, logβ 2 7.08, logβ 3 5.92 and logβ 1 7.28 and logβ 2 5.29 for iron and copper chelates, respectively. The thermodynamic parameters of these reactions and the site of chelation in oxytetracycline are also investigated. The reaction of iron(III) has been used for the spectrophotometric determination of oxytetracycline in some pharmaceutical preparations. Results with a coefficient of variation in the range of 1.6% and a mean recovery of 98.6% are obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01212382
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