ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Language
Number of Hits per Page
Default Sort Criterion
Default Sort Ordering
Size of Search History
Default Email Address
Default Export Format
Default Export Encoding
Facet list arrangement
Maximum number of values per filter
Auto Completion
Topics (search only within journals and journal articles that belong to one or more of the selected topics)
Feed Format
Maximum Number of Items per Feed
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Language
  • 1
    Keywords: Earth sciences. ; Evolution (Biology). ; Earth Sciences. ; Evolutionary Biology.
    Description / Table of Contents: 1 Introduction -- 2 Palaeogeographical settings of South China in the Changhsingian to Induan and palaeogeographic distribution of the studied Permian Triassic Boundary sections -- 3 Description of the studied Permian Triassic Boundary sections of South China -- 4 Age analysis and correlation -- 5 Temporal and spatial processes and dynamics of the Permian Triassic Boundary mass extinction (PTBME) in South China.
    Abstract: This book timely provides high-quality records of 32 PTB sections across different depositional settings from terrestrial to marine facies in South China, including descriptions of lithologies, high-resolution correlation of key boundaries and fossil occurrences at each section. This book also analyzes the patterns and processes of the community and ecosystem evolution over space and through time in the lead to the end-Permian mass extinction, and critically analyzes the mostly debated hypothesis, anoxia and volcanism, which were considered as the causes of mass extinction, based on the data from the studied sections of South China, together with materials from other regions of the world.
    Type of Medium: Online Resource
    Pages: XII, 287 p. 98 illus., 66 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9789819993505
    Series Statement: New Records of the Great Dying in South China,
    DDC: 550
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Online Resource
    Online Resource
    Singapore :Springer Nature Singapore :
    Keywords: Geotechnical engineering. ; Natural disasters. ; Engineering geology. ; Geotechnical Engineering and Applied Earth Sciences. ; Natural Hazards. ; Geoengineering.
    Description / Table of Contents: Introduction -- Part I Experimental Studies on Compression-Shear Failure Mechanism of Rock Mass -- Joint Surface Morphology and Shear Behavior -- Influence of Flaw Inclination on Shear Fracturing and Fractal Behavior -- Influence of Flaw Density on Shear Fracturing and Fractal Behavior -- Part II Failure Mechanism and Stability Analysis of Heavily Fractured Rock Slope -- Method for Determining Strength Parameters of Heavily Fractured Rock Mass -- Kinematical Element Method -- Integrated Karst Cave Stochastic Model-Limit Equilibrium Method -- Strain-Softening Behavior and Strength Reduction Method -- Three-dimensional Effects -- Part III Failure Mechanism and Stability Analysis of Rock Slope Controlled by Major Geological Discontinuities -- Joint Element and Displacement Discontinuity Method -- Discontinuity Kinematical Element Method -- Joint Element and Strength Reduction Method -- Fracture Mechanics Method.
    Abstract: This book presents in-depth coverage of laboratory experiments, theories, modeling techniques, and practices for the analysis and design of rock slopes in complex geological settings. It addresses new concepts in connection with the kinematical element method, discontinuity kinematical element method, integrated karst cave stochastic model-limit equilibrium method, improved strength reduction method, and fracture mechanics method, taking into account the relevant geological features. The book is chiefly intended as a reference guide for geotechnical engineering and engineering geology professionals, and as a textbook for related graduate courses. .
    Type of Medium: Online Resource
    Pages: XXVI, 248 p. 203 illus., 96 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9789811557439
    DDC: 624.151
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Online Resource
    Online Resource
    Singapore :Springer Nature Singapore :
    Keywords: Environmental Law. ; Environmental Law.
    Description / Table of Contents: 1. Environmental Issues and Protection -- 2. Overview of Environmental Law -- 3. The Primary Regimes of Environmental Law -- 4. Environmental Torts and Environmental Civil Liability -- 5. Overview of the Environmental Pollution Prevention and Control Law -- 6. Air Pollution Prevention and Control Act -- 7. Water Pollution Prevention and Control Law -- 8. Soil Pollution Prevention and Control Law -- 9. Marine Environmental Protection Act -- 10. Environmental Noise Pollution Prevention and Control Law -- 11. Law on the Prevention and Control of Pollution by Toxic and Hazardous Substances -- 12. Natural Resources Protection Act.
    Abstract: This book mainly focuses on environmental and resource law under Chinese law, involving secondary disciplines such as international law, civil law, administrative law and criminal law, as well as issues related to other first-class disciplines such as environmental science and ecology. The contents include general theory of environmental law (basic theory), prevention and control of environmental pollution, natural resources protection law and international environmental law. It basically covers all fields of China's environmental law and is a handy reference for those seeking to understand it. Ke Zhou has been teaching at the Law School of Chinese Renmin University for a long time, has successively served as the deputy director of the Department of Economic Law and the director of the Department of Environmental Resources Law and has rich experience in teaching and scientific research. Luozhi Yi is a native of Wangcheng, Hunan. He is a D. in Law, a Master's degree supervisor, Associate Professor at Hunan University Law School. Specialties: Environmental and Resource Protection, Contract, and Economic Law. Xinxin Su, male, from Handan, Hebei. D. in Law, Professor of the Law School of Zhejiang Gongshang University. Specialties: Jurisprudence, Environmental, and Resource Protection Law. He earned the China Law Youth Forum Award. Yochai Sun, male, is a native of Rongcheng, Shandong. D. in Management. He was the deputy director of the Research Office of the Supreme People's Court and a first-class senior judge. He is currently a professor of law and the Dean of the Law School of Tianjin University, a member of the National Advisory Committee on the Environment, the Vice President of the China Environmental Resources Law Research Association, and the Executive Director of the Chinese Society for Environmental Science.
    Type of Medium: Online Resource
    Pages: XIII, 299 p. 2 illus., 1 illus. in color. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9789819944484
    DDC: 344.046
    Language: English
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Call number: AWI Bio-22-94767
    Type of Medium: Dissertations
    Pages: XVIII, 165 Seiten , Illustrationen, Diagramme
    Language: English
    Note: Dissertation, Universität Potsdam, 2021 , Table of Contents Acknowledgements Abstract Zusammenfassung List of figure List of tables List of abbreviation Chapter 1 1. Introduction 1.1 Research background 1.1.1 Response of mountain plant diversity to climate change 1.1.2 Response of Arctic vegetation composition and diversity to climate change 1.1.3 Understanding the critical mechanisms of community assembly are essential for sustaining ecosystem services 1.1.4 Pollen analysis as a traditional tool for representing palaeovegetation 1.1.5. Sedimentary ancient DNA (sedaDNA) is a useful tool for Quaternary ecology tracking 1.2 Study area 1.3 Aims and objectives 1.4 Structure of the thesis 1.4.1 Overview of the chapter 1.4.2 Author's contributions 1.4.3 Methods Chapter 2 2 Manuscript 1: Sedimentary ancient DNA reveals warming-induced alpine habitat loss threat to Tibetan Plateau plant diversity 2.1 Abstract 2.2 Introduction 2.3 Results and discussion 2.4 Methods 2.5 Acknowledgements · Chapter 3 3 Manuscript 2: Holocene vegetation and plant diversity changes in the north-eastern Siberian treeline region from pollen and sedimentary ancient DNA 3.1 Abstract 3.2 Introduction 3.3 Materials and methods 3.3.1 Study area 3.3.2 Lake sediment cores and subsampling 3.3.3 Dating 3.3.4 Pollen analysis 3.3.5 DNA extraction and amplification 3.3.6 Sequencing filtering and taxonomic assignment 3.3.7 Statistical analyses 3.4 Results 3.4.1 Chronology 3.4.2 SedaDNA and pollen assemblages 3.4.3 Gradient analysis and correlation analysis 3.5 Discussion 3 .5.1 Contributions of pollen and sedaDNA to vegetation reconstruction and taxon richness 3.5.2 Variation in Holocene vegetation composition in the Omoloy area, north-eastern Siberia 3.5.3 SedaDNA-based plant diversity changes within lake catchments of the Omoloy region 3.6 Conclusions 3.7 Acknowledgements Chapter 4 4 Manuscript 3: Vegetation reconstruction from Siberia and Tibetan Plateau using modern analogue technique - comparing sedimentary ancient DNA (sedaDNA) and pollen data 4.1 Abstract 4.2 Introduction 4.3 Materials and methods 4.3.1 Sites ofthe modern analogues 4.3.2 Sedimentary (ancient) DNA collection 4.3.3 Metabarcoding data processing and filtering 4.3.4 Pollen data collection 4.3.5 Numerical analysis 4.4 Results 4.4.1 Modern training-set, ROC curve analyses and AT results 4.4.2 Modern analogues for Lake Naleng and Omoloy lake II 4.4.3 Vegetation type reconstruction based on MAT 4.4.4 Projecting fossil samples in ordination space of modern assemblages 4.4.5 Comparing past and present intertaxa relationships 4.5 Discussion 4.5.1 Assessment of analogue quality using modem training-sets 4·5·2 Comparison of sed(a)DNA-based and pollen-based vegetation reconstruction for the Lake Naleng, Tibetan Plateau 4.5.3 Comparison of sedDNA based and pollen-based vegetation reconstruction for the Lake Omoloy, northern Siberia 4.6 Conclusions 4.7 Acknowledgements Chapter 5 5 Manuscript 4: Terrestrial-aquatic ecosystem links on the Tibetan Plateau inferred from sedaDNA shotgun sequencin 5.1 Abstract 5.2 Introduction 5.3 Results 5.4 Discussions 5.5 Methods 5.6 Acknowledgments Chapter 6 6 Synthesis 6.1 The ability of metabarcoding and metagenomic shotgun sequencing to reveal ecological community pattern 6.2 Driver of plant diversity change in high altitude and high latitudes 6.3 High-altitude and high-latitude vegetation type change 6.4 Past terrestrial and aquatic ecological change at ecosystem-scale 6.5 Conclusions and outlook Appendix 1 Appendix-1 Materials for Manuscript #1 1.1 Appendix discussion: Contamination in NTC6 2. Appendix-2 Materials for Manuscript #2 3. Appendix-3 Materials for Manuscript #3 4. Appendix-4 Materials for Manuscript #4 References Eidesstattliche Erklarung
    Location: AWI Reading room
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Monograph available for loan
    Monograph available for loan
    Cheltenham : Edward Elgar
    Call number: PIK N 531-16-90166
    Type of Medium: Monograph available for loan
    Pages: XII, 263 Seiten , Illustrationen , 25 cm
    ISBN: 9781782548027 , 1782548025 , 9781782548034 , 1782548033
    Language: English
    Note: Contents: PART I GENERAL ANALYSIS 1. Conceptual Framework and Analytical Methods ; 2. Global Urban Sustainable Competitiveness Index ; 3. Global Urban Sustainable Competitiveness: A Comprehensive Analysis ; 4. Global Urban Sustainable Competitiveness: A Regional Analysis ; 5. Global Urban Sustainable Competitiveness and Urban GDP Per Capita ; 6. Global Urban Sustainable Competitiveness and Urban Population Size ; 7. Global Urban Sustainable Competitiveness: Characteristics of Functional Centers ; PART II SPECIALIZED ANALYSIS ; 8. The Specialized Differences: One Key Vector in Urban Competitiveness ; 9. Social and Technological Innovations in the Competitiveness of Cities ; 10. Green Cities: Examples of Governing for Green Growth from OECD Countries ; 11. Institutions and Urban Competitiveness – a Doing Business Perspective ; 12. The Challenge of World City Network Pattern Changes on the World City Network Analysis ; 13. Population Aging and Urban Competitiveness ; 14. Driving Factors of Urban Prosperity: An Empirical Analysis of Global Cities ; 15. Patterns of the Global Cities: Present and Future ; PART III INDEX REPORT ; 16. The State of Sustainable Competitiveness of 500 Cities
    Location: A 18 - must be ordered
    Branch Library: PIK Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Call number: AWI Bio-18-91599-26
    In: Flora Reipublicae Popularis Sinicae, Tomus 26
    Type of Medium: Monograph available for loan
    Pages: 506 Seiten , Illustrationen
    ISBN: 7030048873
    Language: Chinese , Latin
    Note: Table of Contents: NYCTAGINACEAE. - 1. Pisonia L. - 1. P. aculeata L.. - 2. Ceodes J. et G. Forst. - 1. C. grandis (R. Br.) D. Q. Lu. - 2. C. umbellifera J. et G. Forst. - 3. Bougainvillea Comm. ex Juss. - 1. B. glabra Choisy. - 2. spectabilis Willd. - 4. Mirabilis L. - 1. M. jalapa L. - 5. Oxybaphus L' Her. ex Willd. - 1. O. himalaicus Edgew. - 6. Boerhavia L. - 1. B. diffusa L. - 2. B. erecta L.. - 3. B. crispa Heyne. - 7. Commicarpus Standl. - 1. C. chinensis (L. ) Heim. - 2. C. lantsangensis D. Q. Lu. - PHYTOLACCACEAE. - 1. Phytolacca L. - 1. Ph. acinosa Roxb. - 2. Ph. polyandra Batalin. - 3. Ph. japonica Makino. - 4. Ph. americana L. - 2. Rivina L. - 1. R. humilis L. - AIZOACEAE. - 1. Gisekia L. - 1. G. pharnaceoides L. - 2. Glinus L. - 1. Gl. lotoides L. - 2. Gl. oppositifolius (L.) A. DC. - 3. Mollugo L. - 1. M. nudicaulis Lam. - 2. M. cerviana (L.) Ser. - 3. M. stricta L. - 4. M. verticillata L. - 4. Sesuvium L. - 1. S. portulacastrum (L.) L. - 5. Trianthema L. - 1. Tr. portulacastrum L. - 6. Mesembryanthemum L. - 1. M. cordifolium L. f. - 2. M. crystallinum L. - 3. M. uncatum Salm-Dyck. - 4. M. edule L.. - 5. M. spectabile Haw. - 7. Tetragonia L. - 1. T . tetragonioides (Pall. ) Kuntze. - PORTULACACEAE. - 1. Portulaca L. - 1. P. oleracea L. - 2. P. pilosa L. - 3. P. grandiflora Hook - 4. P. quadrifida L. - 5. P. psammotropha Hance. - 6. P. insularis Hosokawa. - 2. Talinum Adans. - 1. T. paniculatum (Jacq.) Gaertn. - BASELLACEAE. - 1. Basella L. - 1. B. alba L. - 2. Anredera Juss. - 1. A. scandens (L.) Moq. - 2. A. cordifolia (Tenore) Steenis. - CARYOPHYLLACEAE. - I. Subfam. PARONYCHIOIDEAE Vierh. - 1. Trib. PARONYCHIEAE Pax. - 1. Gymnocarpos Forssk. - 1. G. przewalskii Maxim. - 2. Herniaria L. - 1. H. glabra L. - 2. H. polygama J. Gay. - 3. H. caucasica Rupr. - 2. Trib. SPERGULEAE Vierh. - 3. Spergula L. - 1. Sp. arvensis L. - 4. Spergularia (Pers.) J. et C. Presl. - 1. Sp. rubra (L.) J. et C. Presl. - 2. Sp. diandra (Guss.) Heldr. et Sart. - 3. Sp. media (L.) C. Presl. - 4. Sp. salina J. et C. Presl. - 3. Trib. POLYCARPEAE Pax. - 5. Drymaria Willd. ex Roem. et Schult. - 1. Dr. villosa Cham. et Schlecht. - 2. Dr. diandra Bl. - 6. Polycarpon Loefl. ex L. - 1. P. prostratum (Forssk.) Aschers. et Schweinw. - 7. Polycarpaea Lam. - 1. P. corymbosa (L.) Lam. - 2. P. gaudichaudii Gagnep. - ll. Subfam. ALSINOIDEAE Vierh. - 1. Subtrib. STELLARIINAE Aschers. et Graebn. - 8. Pseudostellaria Pax. - 1. Ps. sylvatica (Maxim.) Pax. - 2. Ps. heterophylla (Miq.) Pax. - 3. Ps. japonica (Korsh.) Pax. - 4. Ps. davidii (Franch.) Pax. - 5. Ps. rupestris (Turcz.) Pax. - 6. Ps. heterantha (Maxim.) Pax. - 7. Ps. himalaica (Franch.) Pax. - 8. Ps. maximowicziana (Franch. et Sav.) Pax. - 9. Myosoton Moench. - 1. M. aquaticum (L.) Moench. - 10. Cerastium L. - 1. C. cerastoides (L.) Britt. - 2. C. pauciflorum Stev. ex Ser. - 3. C. falcatum Bge. - 4. C. maximum L. - 5. C. lithospermifolium Fisch. - 6. C. dahuricum Fisch. - 7. C. perfoliaturn L. - 8. C. glomeratum Thuill. - 9. C. furcatum Cham. et Schlecht. - 10. C. fontanum Baumg. - 11. C. tianschanicum Schischk. - 12. C. limprichtii Pax et Hoffm. - 13. C. szechuense Williams. - 14. C. wilsonii Takeda. - 15. C. pusillum Ser. - 16. C. baischanense Y. C. Chu. - 17. C. arvense L. - 18. C. subpilosum Hayata. - 11. Stellaria L. - 1. Sect. Stellaria. - 1. Subsect. Stellaria. - 1. Ser. Petiolares Fenzl. - 1. St. bungeana Fenzl. - 2. St. nemorum L. - 3. St. nepalensis Majumdar et Vartak. - 4. St. arisanensis (Hayata) Hayata. - 5. St. wushanensis Williams. - 6. St. neglecta Weihe ex Bluff et Fingerh. - 7. St. media (L.) Cyr. - 8. St. apetala Ucria ex Roem. - 9. St. vestita Kurz. - 10. St. chinensis Regel. - 11. St. pilosa Franch. - 12. St. petiolaris Hand. -Mazz. - 13. St. lanipes C. Y. Wu et H. Chuang. - 2. Ser. Sessilifoliae Y. W. Tsui ex P. Ke. - 14. St. omeiensis C. Y. Wu et Y. W. Tsui ex P. Ke. - 15. St. reticulivena Hayata. - 16. St. infracta Maxim. - 17. St. gyirongensis L. H. Zhou. - 18. St. zangnanensis L. H. Zhou. - 19. St. tibetica Kurz. - 20. St. lanata Hook. f. ex Edgew. et Hook. f. - 21. St. patens D. Don. - 3. Ser. Dichotomae Roshev. - 22. St. dichotoma L. - 23. St. amblyosepala Schrenk. - 4. Ser. Holosteae Fenzl. - 24. St. henryi Williams. - 2. Subsect. Larbraea (St. Hil.) Fenzl. - 1. Ser. Foliaceo-bracteatae Schischk. - 25. St. ebracteata Korn. - 26. St. winkleri (Briq.) Schischk. - 27. St. crassifolia Ehrh. - 2. Ser. Discolares Schischk. - 28. St. discolor Turcz. - 29. St. gyangtseensis Williams. - 3. Ser. Uliginosae Schischk. - 30. St. pusilla E. Schmid. - 31. St. mainlingensis L. H. Zhou. - 32. St. depressa E. Schmid. - 33. St. uliginosa Murr. - 4. Ser. Gramineae Roshev. - 34. St. graminea L. - 35. St. brachypetala Bge. - 36. St. yunnanensis Franch. - 37. St. palustris Ehrh. ex Retz. - 38. St. salicifolia Y. W. Tsui ex P. Ke. - 39. St. dianthifolia Williams. - 40. St. longifolia Muehl. ex Willd. - 41. St. imbricata Bge. - 42. St. nipponica Ohwi. - 43. St. filicaulis Makino. - 5. Ser. Parviflorae Schischk. - 44. St. alaschanica Y. Z. Zhao. - 45. St. oxycoccoides Korn. - 46. St. uda Williams. - 47. St. souliei Williams. - 6. Ser. Pedunculares Schischk. - 48. St. soongorica Roshev. - 7. Ser. Umbellatae Schischk. - 49. St. irrigua Bge. - 50. St. parvi-umbellata Y. Z. Zhao. - 51. St. umbellata Turcz. - 52. St. suburnbellata Edgew.. - 2. Sect. Adenonerna (Bge.) Pax. - 53. St. arenaria Maxim.. - 54. St. cherleriae (Fisch. ex Ser.) Williams. - 55. St. petraea Bge. - 56. St. decumbens Edgew. - 57. St. congestiflora Hara. - 3. Sect. Fimbripetalurn Turcz. - 58. St. radians L. - 4. Sect. Leucostemma (Benth. ex G. Don f.) Pax. - 59. St. rnartjanovii Krylov. - 5. Sect. Schizothecium Fenzl. - 60. St. monosperma Buch. -Ham. ex D. Don. - 61. St. ovatifolia (Mizushima) Mizushima. - 62. St. delavayi Franch. - 6. Sect. Oligosperma Boiss. - 63. St. bistyla Y. Z. Zhao. - 64. St. strongylosepala Hand.-Mazz. - 12. Holosteum L. - 1. H. umbellatum L. - 13. Arenaria L. - 1. Subgen. Arenaria. - 1. Sect. Arenaria. - 1. A. serpyllifolia L. - 2. Sect. Rotundifoliae McNeill. - 2. A. orbiculata Royle ex. Edgew. et Hook f. - 3. A. neelgerrensis Wight et Arn. - 3. Sect. Rariflorae Williams. - 4. A. monosperma Williams. - 5. A. puranensis L. H. Zhou. - 4. Sect. Compressae McNeill. - 6. A. compressa McNeill. - 2. Subgen. Eremogone (Fenzl) Fenzl. - 1. Sect. Monogone Maxim. - 7. A. potaninii Schischk. - 2. Sect. Capillares McNeill. - 8. A. juncea M. Bieb. - 9. A. capillaris Poir. - 10. A. acicularis Williams ex Keissler. - 11. A. grüningiana Pax et Hoffm. - 12. A. formosa Fisch. ex Ser. - 13. A. haitzeshanensis Y. W. Tsui. - 3. Sect. Sclerophyllae (Boiss.) McNeill. - 14. A. griffithii Boiss. - 15. A. androsacea Grub. - 3. Subgen. Eremogoneastrum Williams. - 16. A. brevipetala Y. W. Tsui et L. H. Zhou. - 17. A. baxoiensis L. H. Zhou. - 18. A. kumaonensis Maxim. - 19. A. kansuensis Maxim. - 20. A. ischnophylla Williams. - 21. A. roborowskii Maxim. - 22. A. lancangensis L. H. Zhou. - 23. A. gerzeensis L. H. Zhou. - 24. A. qinghaiensis Y. W. Tsui et L. H. Zhou. - 25. A. aksayqingensis L. H. Zhou. - 26. A. pulvinata Edgew. - 27. A. shannanensis L. H. Zhou. - 28. A. edgeworthiana Majumdar. - 29. A. bryophylla Fernald. - 30. A. zadoiensis L. H. Zhou. - 31. A. taibaishanensis L. H. Zhou. - 32. A. festucoides Benth. - 4. Subgen. Dolophragma (Fenzl) McNeill. - 33. A. przewalskii Maxim. - 34. A. smithiana Mattf. - 35. A. oreophila Hook. f. ex Edgew. et Hook. f. - 36. A. densissima Wall. ex Edgew. et Hook. f. - 37. A. polytrichoides Edgew. ex. Edgew. et Hook f. - 5. Subgen. Solitaria McNeill. - 38. A. ciliolata Edgew. - 39. A. ramellata Williams. - 40. A. stracheyi Edgew. - 41. A. rhodantha Pax et Ho , Text in chinesischer Schrift , Überschriften in lateinischer Sprache
    Location: AWI Reading room
    Branch Library: AWI Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 329 (Jan. 2007), p. 225-230 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In order to obtain ultra-smooth and damage free substrate surfaces for MgOsingle-crystal substrate with high polishing efficiency, an experimental investigation based onsystemically designed polishing experiments are presented and discussed. Considering the structuralcharacteristics and chemical properties of the MgO single crystal, the experiments use a polishingslurry containing SiO2 abrasives so that the process is performed under a combination ofmechanical and chemical actions. The effects of the polishing process parameters, such as polishingpressure, rotational speed of polishing plate, and the flow rate and concentration of the polishingslurry, on the surface roughness and material removal rate (MRR) are analyzed. Finally, arecommendation is made for selecting the appropriate polishing parameters for MgO single crystalsubstrate, based on which a surface roughness of 0.3nm can be achieved on the MgO substrate in20min of polishing time
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 930-932 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, α-SiAlON powders co-doped with (Ca+M) (M=Mg, Yb, Sr) were prepared bycombustion synthesis. The effect of Ca incorporation on the phase composition and grain morphology ofreaction products was discussed. The experimental results showed that Ca incorporation promoted thegrowth of rod-like α-SiAlON crystals in (Ca+Mg) and (Ca+Yb) systems. For (Ca+Sr) system, the additionof Ca assisted Sr into α-SiAlON crystal lattice and increased the relative content of α-SiAlON in reactionproduct
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: SrBi2(Ta1-xNbx)2O9(SBTN) ferroelectric ceramics with typical bismuth layered perovskitestructure were synthesized with a reactive hot-press sintering process at 1000°C for 2h. The as-sinteredSBTN (x=0.2, 0.4, 0.6, 0.8) materials had a maximum relative density of 95.97%. Bi-layered perovskitestructure was obtained. The grain sizes increased with increasing Nb content. In 1MHz frequency,remanent polarization (Pr) of SBTN (x=0.2, 0.4, 0.6, 0.8) were 10.0, 3.0, 1.7 and 1.0, while coercive field(Ec) of SBTN (x=0.2, 0.4, 0.6, 0.8) were 50, 32, 33 and 33kV/cm, respectively
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 336-338 (Apr. 2007), p. 1179-1181 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In present work, ultra-fine powders with alpha phase content higher than 95 wt% and specificsurface area of 15.33 m2/g were prepared by mechanical activated combustion synthesis (MACS) process.The sinterability of as-fabricated Si3N4 as well as the microstructure and mechanical properties of thesintered bulk were investigated by comparing with a kind of commercial available Si3N4 powders used asdiluents in MACS process. Employing hot-pressing method, both powders were sintered equally by usingY2O3 and Al2O3 as sintering aids. Results showed that smaller particle size and higher specific surfacearea were obtained by MACS process when compared with the commercial one. Bulk Si3N4 appearedapproximately the same relative density, hardness, strength and fracture toughness, however, proved to behigher while using MACS powders
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...