TAILIEUCHUNG - Introduction to Database Systems: Module 1, Lecture 1

We define the data placement problem for a P2P system as follows. Assume we are given a set of cooperating nodes connected by a network (typically, but not necessarily, the Internet) that has limited bandwidth on each link. Nodes know about and exchange data with a collection of participating peers, and they may serve any or all of four roles. The first of these is a data origin, which provides original content to the system and is the authoritative source of that data. As a storage provider, a peer stores materialized views (consuming disk resources, and perhaps replacing previously materialized views if there is insufficient. | ntroduction to Database Systems Module 1 Lecture 1 Instructor Raghu Ramakrishnan raghu@ UW-Madison Database Management Systems R. Ramakrishnan 1 What Is a DBMS A very large integrated collection of data. Models real-world enterprise. - Entities . students courses - Relationships . Madonna is taking CS564 A Database Management System DBMS is a software package designed to store and manage databases. Database Management Systems R. Ramakrishnan 2 Why Use a DBMS Data independence and efficient access. Reduced application development time. Data integrity and security. Uniform data administration. Concurrent access recovery from crashes. Database Management Systems R. Ramakrishnan

• Cơ sở dữ liệu
• Phytoremediation
• Biofortification and Nanoparticles
• Absorption
• Transport and Control Mechanisms
• Defence Strategies
• Annual Plants
• Cơ chế làm sạch môi trường nước
• Làm sạch môi trường nước bằng thực vật
• Làm sạch môi trường nước
• Ứng dụng của phytoremediation
• Giới hạn của phytoremediation
• Phương pháp phytoremediation
• Phytoremediation of contaminated soils
• Contaminated soils
• Plant leaves
• Transformation of organic contaminants
• Phytoremediation includes phytotransformation
• công nghệ thực vật PHYTOREMEDIATION
• xử lý môi trường
• thực vật
• thuốc bảo vệ thực vật
• các hợp chất cao phân tử
• earth sciences
• Research
• scientific research
• scientific reports
• THỰC VẬT CẢI TẠO MÔI TRƯỜNG PHYTOREMEDIATION
• bài giảng sinh học
• sự đa dạng sinh học
• sinh thái nông nghiệp
• Textile effluent
• Promoting bacillus spp
• Paenibacillus Alvei
• Sesuvium Portulacastrum
• Phytoremediation of salt affected soils
• Công nghệ môi trường
• Giải pháp công nghệ môi trường
• Vùng đất nước bị ô nhiễm
• Bảo vệ môi trường
• Công nghệ Phytoremediation
• Nước bị ô nhiễm lâu năm
• Phytoremediation efficiency
• Plant growth
• Plant based remediation
• Total petroleum hydrocarbons
• Hydrocarbon pollutants
• Heavy metals
• Phytoremediation and hyperaccumulators
• Based technology
• Heavy metals accumulation
• Inorganic pollutants
• C demersum
• Heavy metal
• Ceratophyllum demersum Lab work
• Phytoremediation of lead
• Lab aqueous ecosystem
• Resource Competition
• Environmental Clean Up
• Conserving
• Biodiversity
• Microclimate
• Abiotic Stress
• Mineral Nutrition
• Biofortification
• Nanoparticles
• Plant Antioxidative