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Potentiale und Herausforderungen bei der Aggregation und Inwertsetzung individueller Umweltinformationen in urbanen Ökosystemen: Entwicklung und Evaluierung eines serviceorientierten Frameworks unter Nutzung einer modellgetriebenen Prozessintegration am Beispiel der individuellen thermischen ExpositionGoblirsch, Tobias 30 June 2021 (has links)
Individualität und ökologisches Bewusstsein gewinnen in der gesellschaftlichen Wahrnehmung immer stärker an Bedeutung. Entsprechend dieser Treiber sind Menschen zunehmend interessiert, Informationen zu erhalten, die individuell auf die eigenen Bedürfnisse angepasst und auf die aktuelle Umgebungssituation abgestimmt sind. In der heutigen Wissensgesellschaft bilden Umweltinformationen dabei ein zentrales Element zur Bewertung ökologischer und ökonomischer Systemzusammenhänge. Zur Erfassung und wissenschaftlichen Beschreibung derartiger Informationen fehlen bislang geeignete Methoden, sodass sich die Dissertation diesem Thema nähert. Die vorliegende Arbeit beschreibt die Potentiale und Herausforderungen bei der Aggregation und Inwertsetzung individueller Umweltinformationen in urbanen Ökosystemen. Ziel dabei ist die Entwicklung und Evaluierung eines serviceorientierten Frameworks unter Nutzung einer modellgetriebenen Prozessintegration. Urbane Gebiete zeichnen sich insbesondere durch heterogene Strukturen und einer hohen zeitlichen Dynamik von Umweltkenngrößen aus und bilden somit sehr komplexe Ökosysteme. In diesen Punkten unterscheiden sich urbane Ökosysteme deutlich von Ökosystemen des ländlichen Raums. Charakteristische Merkmale wie intensive Flächennutzung, dichte Bebauung aber auch starke anthropogene Einflüsse haben Auswirkungen auf physikalische, chemische und biologische Prozesskreisläufe. Dadurch bilden sich in Städten gegenüber dem ländlichen Raum Besonderheiten aus, ein sog. Mesoklimaraum. Aufbauend auf einer allgemeinen Systemanalyse wird das Konzept des \textit{Raster Model Exposure Pattern} und des \textit{Exposure Data Service} eingeführt. Diese beiden Artefakte bilden eine Transformationsstrategie um ganzheitlich umwelt- und informationswissenschaftliche Betrachtungen durchzuführen, sowie individuelle Expositionen in urbanen Ökosystemen zu aggregieren.:1. Einleitung
1.1. Motivation
1.2. Forschungsgegenstand
1.3. Forschungsziel
1.4. Erwartete Ergebnisse
1.5. Forschungsmethode
1.6. Aufbau der Arbeit
2. Inwertsetzung individueller Umweltinformationen
2.1. Ein Blick in die Stadt der Zukunft
2.2. Anwendungsszenarien für individuelle Umweltinformationen
2.2.1. Individuelle Umweltinformationen zur Entscheidungsfindung
2.2.2. Individuelle Umweltinformationen zur Minimierung von Risiken
2.3. Exposom und Exposition
3. Systembeschreibung urbaner Ökosysteme
3.1. Hintergrund
3.2. Allgemeine Systemanalyse
3.3. Modelle im Kontext urbaner Ökosysteme
3.3.1. Konzeptionelles Modell
3.3.2. Technisches Modell
3.4. In situ Daten
3.5. Transformation
3.5.1. KDD Prozess
3.5.2. Wissensbasierte Systeme
3.5.3. Regelbasis - Regelbasierte Systeme
3.5.4. Regelbasis - Maschinelles Lernen
3.6. Systemmanagement
4. Urbanes Klima - ein komplexes Phänomen
4.1. Hintergrund
4.2. Das Phänomen von Wärmeinseln in urbanen Ökosystemen
4.3. Urbanisierung
4.4. Heterogenität urbaner Strukturen
4.5. Hohe Dynamik von Zustandsgrößen
4.6. Forschungskonzept zur Bestimmung individueller Expositionen in urbanen Ökosystemen
II. Konzeptionelles Vorgehensmodell zur Bestimmung individueller thermischer Expositionen in urbanen Ökosystemen
5. Raster Model Exposure Pattern
5.1. Analyse
5.2. Implementierung
5.2.1. Import der Rasterdaten und Bewegungsdaten
5.2.2. Zeitdiskretisierung der Bewegungsdaten
5.2.3. Georeferenzierung der Bewegungsdaten auf die Rasterelemente
5.2.4. Abfrage der Exposition
5.2.5. Berechnung der Individuellen Exposition
6. Exposure Data Services
6.1. Hintergrund
6.2. Vorgehensmodell
6.3. Die Transformation im Exposure Data Service
6.4. Die Durchführung der Systemanalyse im Exposure Data Service
6.5. Bestimmung der in situ Daten im Exposure Data Service
6.6. Das Systemmanagement im Exposure Data Service
7. Wärme in der Stadt - ein Fallbeispiel
7.1. Transformation
7.2. Systemanalyse
7.2.1. Definition der Zielkenngröße
7.2.2. Definition des Untersuchungsgebietes
7.2.3. A-priori Informationen über das Untersuchungsgebiet
7.2.4. Rasterung des Untersuchungsgebietes
7.2.5. Klassifizierung von Kontext und In situ Daten
7.2.6. Klassifizierung der Thermischen Exposition
7.2.7. Erarbeitung einer Monitoringstrategie
7.3. in situ Daten
7.3.1. Definition der Kenngrößen
7.3.2. Spezifikation der Datenquellen
7.3.3. Auswahl geeigneter Datenquellen
7.4. Systemmanagement
7.4.1. Entwicklung einer Systemarchitektur
7.4.2. Spezifikation der Komponenten
7.4.3. Erfassung der Datenflüsse
7.4.4. Inbetriebnahme der IT Infrastruktur
8. Thermische Charakterisierung 104
8.1. Material und Methode
8.2. Ergebnis und Auswertung
9. Instanziierung
9.1. Programmlogik
9.1.1. UI Rules Engine
9.1.2. Datenschnittstelle - API
9.1.3. Map Prozessierung
9.2. Prozessierung der Indikatoren
9.2.1. LST Prozessierung
9.2.2. NDVI Prozessierung
9.2.3. Landnutzung Prozessierung
9.2.4. Prozessierung der subjektiven Temperatur
9.2.5. Wärmeindex Prozessierung
9.3. Zusammenhängende Betrachtung der Indikatoren
10. Synthese und Diskussion
11. Schlussbetrachtung
11.1. Zusammenfassung
11.2. Forschungsbeitrag
11.3. Ausblick
Literaturverzeichnis
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Forest resources and forestry in Vietnam / Tài nguyên rừng và lâm nghiệp ở Việt NamLuong, Thi Hoan 09 December 2015 (has links) (PDF)
Forest and forestland are important roles and sources of livelihood for the population living in or near forests and in mountainous areas of Vietnam. The objectives of this paper analysed the change in forest resource, and policy of forestry in Vietnam. In recent several years, forest area rapidly covered an average rate of 240,000 ha/year and had about 13.39 million hectares in 2010. It has contributed to the use of bare land, job creation and improvement of livelihoods for 25% of Vietnam’s population living in mountainous areas. Those results were the purpose of reforestation program and the production of wood industry in Vietnam. In this addition, government policies and regulations have provided a solid foundation for development of the forest plantations and conservation of forest ecosystems though forest land allocation and lease to organizations, households, and individuals. Therefore, the forest utilization has motivated by both environmental and commercial factors in Vietnam based on dividing into three forest categories special use, protection and production forests. However, the development strategy of forest management plan is the difficulties associated with conflicting land claims and boundary disputes due to the value of the established forest. / Rừng và đất rừng đóng vai trò quan trọng và là nguồn sinh kế cho người dân sống trong hoặc gần rừng ở các khu vực miền núi của Việt Nam. Mục tiêu của nghiên cứu này phân tích sự thay đổi về tài nguyên rừng và chính sách về lâm nghiệp. Trong một vài năm gần đây, diện tích rừng bao phủ nhanh với tốc độ trung bình 240.000 ha/năm và có khoảng 13,39 triệu ha trong năm 2010 này đã góp phần vào việc sử dụng đất trống, tạo việc làm và cải thiện đời sống cho 25% dân số sống ở khu vực miền núi của Việt Nam. Kết quả này là mục đích của chương trình trồng rừng và sản xuất gỗ công nghiệp tại Việt Nam. Bên cạnh đó, chính sách và các quy định của chính phủ đã cung cấp một nền tảng vững chắc cho việc phát triển diện tích trồng rừng và bảo tồn hệ sinh thái rừng mặc dù rừng và đất rừng đã được giao và khoán cho các tổ chức, hộ gia đình, cá nhân. Vì vậy, việc sử dụng rừng đã thúc đẩy bởi hai yếu tố môi trường và thương mại ở Việt Nam, dựa trên phân loại rừng: rừng đặc dụng, rừng sản xuất và rừng phòng hộ. Tuy nhiên, chiến lược kế hoạch quản lý phát triển rừng có những khó khăn liên quan đến xung đột khiếu nại đất và tranh chấp biên giới do giá trị của rừng được thành lập.
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Variability Modeling in the RealBerger, Thorsten 15 May 2013 (has links) (PDF)
Variability modeling is one of the key disciplines to cope with complex variability in large software product lines. It aims at creating, evolving, and configuring variability models, which describe the common and variable characteristics, also known as features, of products in a product line. Since the introduction of feature models more than twenty years ago, many variability modeling languages and notations have been proposed both in academia and industry, followed by hundreds of publications on variability modeling techniques that have built upon these theoretical foundations.
Surprisingly, there are relatively few empirical studies that aim at understanding the use of such languages. What variability modeling concepts are actually used in practice? Do variability models applied in real-world look similar to those published in literature? In what technical and organizational contexts are variability models applicable?
We present an empirical study that addresses this research gap. Our goals are i) to verify existing theoretical research, and ii) to explore real-world variability modeling languages and models expressed in them. We study concepts and semantics of variability modeling languages conceived by practitioners, and the usage of these concepts in real, large-scale models. Our aim is to support variability modeling research by providing empirical data about the use of its core modeling concepts, by identifying and characterizing further concepts that have not been as widely addressed, and by providing realistic assumptions about scale, structure, content, and complexity of real-world variability models. We believe that our findings are of relevance to variability modeling researchers and tool designers, for example, those working on interactive product configurators or feature dependency checkers. Our extracted models provide realistic benchmarks that can be used to evaluate new techniques.
Recognizing the recent trend in software engineering to open up software platforms to facilitate inter-organizational reuse of software, we extend our empirical discourse to the emerging field of software ecosystems. As natural successors of successful product lines, ecosystems manage huge variability among and within their software assets, thus, represent a highly interesting class of systems to study variability modeling concepts and mechanisms. Our studied systems comprise eleven highly configurable software systems, two ecosystems with closed platforms, and three ecosystems relying on open platforms. Some of our subjects are among the largest successful systems in existence today. Results from a survey on industrial variability modeling complement these subjects.
Our overall results provide empirical evidence that the well-researched concepts of feature modeling are used in practice, but also that more advanced concepts are needed. We observe that assumptions about variability models in the literature do not hold. Our study also reveals that variability models work best in centralized variability management scenarios, and that they are fragile and have to be controlled by a small team. We also identify a particular type of dependencies that is increasingly used in open platforms and helps sustain the growth of ecosystems. Interestingly, while enabling distributed variability, these dependencies rely on a centralized and stable vocabulary. Finally, we formulate new hypotheses and research questions that provide direction for future research.
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Biodiversity research and conservation in Cat Ba National Park with updated records from recent field surveysCao, Thi Thanh Nga, Nguyen, Song Tung 21 February 2019 (has links)
Among the protected area system of Vietnam, Cat Ba appears as an ideal national park for biodiversity research and conservation. It covers a large area of karst landscape including islands and different ecosystems ranging from forests, wetland, mangroves, caves and others. Since the establishment of Cat Ba National Park in 1986, biodiversity research and conservation within the park have been strongly promoted and raised. The park has been well known as home to highly diverse flora and fauna with many species endemic to the archipelago and Vietnam. A series of projects and programmes have been effectively implemented for urgent and long-term conservation of threatened species. However, results from scientific research also indicated that many sites and species are still almost unstudied while several sections of the park’s buffer zone are affected by human activities including unscientific development of ecotourism. We recently conduct a field survey and recorded 2 bat species and echolocation calls in their natural habitats. This paper provides an overview of achievements with recent records and recommendations for strengthening conservation of biodiversity and habitats in the park and surroundings. / Trong hệ thống khu vực bảo vệ của Việt Nam, Cát Bà là một vườn quốc gia có điều kiện thuận lợi đối với công tác nghiên cứu và bảo tồn đa dạng sinh học. Vườn quốc gia này bao gồm diện tích lớn cảnh quan núi đá vôi với các đảo và hệ sinh thái đặc trưng như rừng trên núi, đất ngập nước, rừng ngập mặn, hang động và nhiều hệ sinh thái khác. Từ khi thành lập Vườn Quốc gia Cát Bà năm 1986, công tác nghiên cứu và bảo tồn đa dạng sinh học được quan tâm và thực hiện ngày càng nhiều. Vườn quốc gia cũng chứa đựng khu hệ động vật và thực vật đa dạng với nhiều loài đặc hữu cho quần đảo và Việt Nam. Nhiều dự án và chương trình đã được thực hiện nhằm bảo tồn cấp bách và lâu dài những loài bị đe dọa. Tuy nhiên, những kết quả nghiên cứu khoa học cũng cho thấy nhiều khu vực trong phạm vi vườn quốc gia gần như chưa được nghiên cứu trong khi một số tiểu khu thuộc vùng đệm đang bị ảnh hưởng bởi hoạt động của con người như sự phát triển du lịch. Chúng tôi đã ghi nhận được 2 loài dơi cùng với tiếng kêu siêu âm trong môi trường sống tự nhiên của chúng qua thời gian điều tra thực địa vừa qua. Bài báo này cung cấp dẫn liệu tổng quan và cập nhật về những kết quả đã đạt được với những thông tin cập nhật và đề xuất nhằm thúc đẩy công tác bảo tồn đa dạng sinh học và sinh cảnh ở vườn quốc gia và vùng phụ cận trong tương lai.
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Impacts of ship-induced waves on benthic macroinvertebratesGabel, Friederike 24 April 2012 (has links)
Schifffahrt stellt weltweit eine der wichtigsten Nutzungen der Flüsse und Seen dar, die zukünftig weiter zu nimmt. Sie schädigt Ufer durch Wellenschlag erheblich. Die Effekte von Schiffswellen auf benthische Wirbellose sind aber bisher kaum bekannt, obwohl diese eine zentrale Rolle im litoralen Nahrungsnetz spielen. Daher untersuchte ich 1) die direkten Effekte von Schiffswellen auf benthische Wirbellose, 2) die resultierenden Auswirkungen auf trophische Interaktionen und 3) das Wachstum und die Fitness von Wirbellosen, sowie 4) die langfristigen Änderungen der litoralen Wirbellosenzönosen. Labor- und Feldversuche zeigten, dass mit zunehmender wellengenerierter Sohlschubspannung mehr Individuen verdriftet wurden. Die Verdriftung wurde jedoch durch eine hohe strukturelle Habitatkomplexität gemindert, da diese die Wellenenergie stärker dissipierte und den Wirbellosen bessere Festhaltemöglichkeiten bot. Die Verdriftung der Wirbellosen bewirkte ein höheres Prädationsrisiko durch spindelförmige Fische, während hochrückige Fische die Ingestion bei Wellenexposition reduzierten. Wellenschlag verringerte auch das Wachstum und die Fitness nativer Wirbellosenarten, indem die Ingestion verringert oder der Energieverbrauch erhöht wurde, wohingegen Neozoen nicht beeinträchtigt wurden. Der kumulative Effekt von Schiffswellen veränderte die Artenzusammensetzung benthischer Zönosen sehr. Die Abundanz nativer Wirbelloser und die Artenzahl waren an exponierten Ufern geringer, während die Abundanz invasiver Arten zunahm. Folglich beeinträchtigen Schiffswellen benthische Wirbellose auf der Ebene der Individuen, Arten, Zönosen, sowie tropischer Interaktionen, und können so die ökologische Struktur und Funktion des gesamten Litorals beeinflussen. Durch Schutz komplexer Habitate wie Wurzeln und dichte Schilfbestände, sowie durch Wellenschlagsreduzierung durch größere Mindestabstände zum Ufer und angepasste Fahrtgeschwindigkeit, können die Auswirkungen von Schiffswellen gemindert werden. / Inland navigation is a major human use of rivers and lakes worldwide which is expected to increase in the future. It significantly affects shore habitats by ship-induced waves. In contrast to the importance of such pressures, the effects of these hydrodynamic disturbances on benthic invertebrates in the littoral zones are poorly understood, even that invertebrates are a central element of littoral food webs. Hence, I investigated 1) the direct and immediate effects of ship-waves on benthic invertebrates, 2) their subsequent effects on trophic interactions and 3) on the growth and fitness of invertebrates, and finally 4) the long-term effects on the community composition. Laboratory and field experiments showed increasing detachment of invertebrates with higher wave-induced shear stress. Detachment was significantly mitigated by higher structural complexity of the habitats, as complex habitats dissipate wave energy and provide better fixing possibilities. Moreover dislodgement of invertebrates led to a higher risk of being preyed upon by fusiform fish, while deep bodied fish reduced feeding under waves. Waves also reduced growth and fitness of native invertebrates via reduced feeding or increased energy costs, while non-native invertebrates were not affected. The cumulative impact of ship-waves alters the community composition of benthic invertebrates. The abundance of native invertebrates and total species richness was lower at exposed sites, while non-native invertebrates increased in abundance. Thus, ship-waves affect benthic invertebrates on the individual, species, and community levels, as well as the interaction of trophic levels, and hence will alter the ecological structure and function of whole littoral zones. Adverse effects of ship-waves may be mitigated by protecting structural complex habitats such as tree roots and dense reed belts, and by minimizing wave generation by increasing minimum sailing distance to shore or by adjusting vessel speed.
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Die Bedeutung der Landschaftsstruktur für die Bienendiversität und Bestäubung auf unterschiedlichen räumlichen Skalen / Effects of landscape structure on bee diversity and pollination at different spatial scalesBürger, Christof 15 July 2004 (has links)
No description available.
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Design and Evaluation of Domain-Specific Platforms and the Special Case of Digital HealthcareBenedict, Martin 10 June 2020 (has links)
The implementation of digital innovations in the healthcare sector is faced with different barriers and challenges. The complex system of regulations, the lack of interoperability, and highly dynamic interorganisational networks lead to missing widespread adoption of eHealth solutions. Digital platforms can help to overcome these barriers by providing a holistic infrastructure. They create a modularised foundation that innovators can use to create own innovations and provide them to demanders of digital solutions. As intermediaries, they can be accessed both by healthcare professionals and eHealth solution providers. Providers can offer their eHealth services via the platform. Healthcare professionals can use these services to create own interorganisational information systems.
In the field of information systems research, effects and strategies for two-sided platforms are well researched and the potentials of eHealth platforms are also discussed. However, the organisational and technological design and methods for the construction of platforms are fewer questioned. Nonetheless, platform owners can benefit from implementation strategies and architectural guidance to create sustainable platforms and surrounding ecosystems.
This doctoral thesis questions how domain-specific platforms can be designed systematically. Conducting a design-science research process, it develops both a modelling system and the Dresden Ecosystem Management Method (DREEM) to support the development of platforms in different domains. Furthermore, it describes the design characteristics of two-sided platforms in the healthcare sector and provides an evaluation approach to analyse the platforms’ ability to create a viable innovation ecosystem in the healthcare sector.
The doctoral thesis contributes by providing methodical guidance for platform owners and researchers to design and evaluate digital platforms in different domains and improves the understanding of platform theory in the healthcare sector.:A. Synopsis of the Doctoral Thesis
1. Introduction
2. Foundational Considerations
3. Requirements for Design Artefacts and Knowledge
4. Structure of the Doctoral Thesis
5. Conclusion
B. Paper 1 - Governance Guidelines for Digital Healthcare Ecosystems
C. Paper 2 - Revise your eHealth Platform!
D. Paper 3 - Business Model Open ”E-Health-Platform”
E. Paper 4 - Modelling Ecosystems in Information Systems
F. Paper 5 - Designing Industrial Symbiosis Platforms
G. Paper 6 - Management of Digital Ecosystems with DREEM
H. Paper 7 - Guiding the Development of Digital Ecosystems
I. Paper 8 - Towards Maintenance Analytics Ecosystems
J. Paper 9- Sustainability of E-Health-Projects
K. Paper 10 - ISO 11354-2 for the Evaluation of eHealth-Platforms
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Variability Modeling in the Real: An Empirical Journey from Software Product Lines to Software EcosystemsBerger, Thorsten 16 April 2013 (has links)
Variability modeling is one of the key disciplines to cope with complex variability in large software product lines. It aims at creating, evolving, and configuring variability models, which describe the common and variable characteristics, also known as features, of products in a product line. Since the introduction of feature models more than twenty years ago, many variability modeling languages and notations have been proposed both in academia and industry, followed by hundreds of publications on variability modeling techniques that have built upon these theoretical foundations.
Surprisingly, there are relatively few empirical studies that aim at understanding the use of such languages. What variability modeling concepts are actually used in practice? Do variability models applied in real-world look similar to those published in literature? In what technical and organizational contexts are variability models applicable?
We present an empirical study that addresses this research gap. Our goals are i) to verify existing theoretical research, and ii) to explore real-world variability modeling languages and models expressed in them. We study concepts and semantics of variability modeling languages conceived by practitioners, and the usage of these concepts in real, large-scale models. Our aim is to support variability modeling research by providing empirical data about the use of its core modeling concepts, by identifying and characterizing further concepts that have not been as widely addressed, and by providing realistic assumptions about scale, structure, content, and complexity of real-world variability models. We believe that our findings are of relevance to variability modeling researchers and tool designers, for example, those working on interactive product configurators or feature dependency checkers. Our extracted models provide realistic benchmarks that can be used to evaluate new techniques.
Recognizing the recent trend in software engineering to open up software platforms to facilitate inter-organizational reuse of software, we extend our empirical discourse to the emerging field of software ecosystems. As natural successors of successful product lines, ecosystems manage huge variability among and within their software assets, thus, represent a highly interesting class of systems to study variability modeling concepts and mechanisms. Our studied systems comprise eleven highly configurable software systems, two ecosystems with closed platforms, and three ecosystems relying on open platforms. Some of our subjects are among the largest successful systems in existence today. Results from a survey on industrial variability modeling complement these subjects.
Our overall results provide empirical evidence that the well-researched concepts of feature modeling are used in practice, but also that more advanced concepts are needed. We observe that assumptions about variability models in the literature do not hold. Our study also reveals that variability models work best in centralized variability management scenarios, and that they are fragile and have to be controlled by a small team. We also identify a particular type of dependencies that is increasingly used in open platforms and helps sustain the growth of ecosystems. Interestingly, while enabling distributed variability, these dependencies rely on a centralized and stable vocabulary. Finally, we formulate new hypotheses and research questions that provide direction for future research.
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Forest resources and forestry in Vietnam: Review paperLuong, Thi Hoan 09 December 2015 (has links)
Forest and forestland are important roles and sources of livelihood for the population living in or near forests and in mountainous areas of Vietnam. The objectives of this paper analysed the change in forest resource, and policy of forestry in Vietnam. In recent several years, forest area rapidly covered an average rate of 240,000 ha/year and had about 13.39 million hectares in 2010. It has contributed to the use of bare land, job creation and improvement of livelihoods for 25% of Vietnam’s population living in mountainous areas. Those results were the purpose of reforestation program and the production of wood industry in Vietnam. In this addition, government policies and regulations have provided a solid foundation for development of the forest plantations and conservation of forest ecosystems though forest land allocation and lease to organizations, households, and individuals. Therefore, the forest utilization has motivated by both environmental and commercial factors in Vietnam based on dividing into three forest categories special use, protection and production forests. However, the development strategy of forest management plan is the difficulties associated with conflicting land claims and boundary disputes due to the value of the established forest. / Rừng và đất rừng đóng vai trò quan trọng và là nguồn sinh kế cho người dân sống trong hoặc gần rừng ở các khu vực miền núi của Việt Nam. Mục tiêu của nghiên cứu này phân tích sự thay đổi về tài nguyên rừng và chính sách về lâm nghiệp. Trong một vài năm gần đây, diện tích rừng bao phủ nhanh với tốc độ trung bình 240.000 ha/năm và có khoảng 13,39 triệu ha trong năm 2010 này đã góp phần vào việc sử dụng đất trống, tạo việc làm và cải thiện đời sống cho 25% dân số sống ở khu vực miền núi của Việt Nam. Kết quả này là mục đích của chương trình trồng rừng và sản xuất gỗ công nghiệp tại Việt Nam. Bên cạnh đó, chính sách và các quy định của chính phủ đã cung cấp một nền tảng vững chắc cho việc phát triển diện tích trồng rừng và bảo tồn hệ sinh thái rừng mặc dù rừng và đất rừng đã được giao và khoán cho các tổ chức, hộ gia đình, cá nhân. Vì vậy, việc sử dụng rừng đã thúc đẩy bởi hai yếu tố môi trường và thương mại ở Việt Nam, dựa trên phân loại rừng: rừng đặc dụng, rừng sản xuất và rừng phòng hộ. Tuy nhiên, chiến lược kế hoạch quản lý phát triển rừng có những khó khăn liên quan đến xung đột khiếu nại đất và tranh chấp biên giới do giá trị của rừng được thành lập.
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Towards a web-scale data management ecosystem demonstrated by SAP HANALehner, Wolfgang, Faerber, Franz, Dees, Jonathan, Weidner, Martin, Baeuerle, Stefan 12 January 2023 (has links)
Over the years, data management has diversified and moved into multiple directions, mainly caused by a significant growth in the application space with different usage patterns, a massive change in the underlying hardware characteristics, and-last but not least-growing data volumes to be processed. A solution matching these constraints has to cope with a multidimensional problem space including techniques dealing with a large number of domain-specific data types, data and consistency models, deployment scenarios, and processing, storage, and communication infrastructures on a hardware level. Specialized database engines are available and are positioned in the market optimizing a particular dimension on the one hand while relaxing other aspects (e.g. web-scale deployment with relaxed consistency). Today it is common sense, that there is no single engine which can handle all the different dimensions equally well and therefore we have very good reasons to tackle this problem and optimize the dimensions with specialized approaches in a first step. However, we argue for a second step (reflecting in our opinion on the even harder problem) of a deep integration of individual engines into a single coherent and consistent data management ecosystem providing not only shared components but also a common understanding of the overall business semantics. More specifically, a data management ecosystem provides common “infrastructure” for software and data life cycle management, backup/recovery, replication and high availability, accounting and monitoring, and many other operational topics, where administrators and users expect a harmonized experience. More importantly from an application perspective however, customer experience teaches us to provide a consistent business view across all different components and the ability to seamlessly combine different capabilities. For example, within recent customer-based Internet of Things scenarios, a huge potential exists in combining graph-processing functionality with temporal and geospatial information and keywords extracted from high-throughput twitter streams. Using SAP HANA as the running example, we want to demonstrate what moving a set of individual engines and infra-structural components towards a holistic but also flexible data management ecosystem could look like. Although there are some solutions for some problems already visible on the horizon, we encourage the database research community in general to focus more on the Big Picture providing a holistic/integrated approach to efficiently deal with different types of data, with different access methods, and different consistency requirements-research in this field would push the envelope far beyond the traditional notion of data management.
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