Communication model

Giới thiệu Do tiến sĩ E. F. Codd đưa ra - “A Relation Model for Large Shared Data Banks”, Communications of ACM, 6/1970 Cung cấp một cấu trúc dữ liệu đơn giản và đồng bộ - Khái niệm quan hệ Có nền tảng lý thuyết vững chắc - Lý thuyết tập hợp Là cơ sở của các HQT CSDL thương mại - Oracle, DB2, SQL Server… Nhập môn Cơ sở dữ liệu - Khoa CNTT 3 Nội dung chi tiết Giới thiệu Các khái niệm của mô hình quan hệ Quan hệ (Relation) Thuộc tính (Attribute) Lược đồ (Schema) Bộ (Tuple) Miền giá trị (Domain) Ràng buộc toàn vẹn Các đặc trưng của quan...

40p biodoc 20-09-2011 246 62   Download

Đƣợc giới thiệu ở .NET 3  WCF cung cấp mô hình lập trình đơn giản, thống nhất và có thể mở rộng và có thể tƣơng tác với các công nghệ phân tán khác: DCOM, .NET Remoting, XML web service, Sockets, P2P,…  Tích hợp các công nghệ phân tán vào trong API với namespace System.ServiceModel  Cung cấp các công nghệ khác nhau để ngƣời sử dụng service có thể sử dụng dễ dàng. Ví dụ WCF có thể cung cấp service làm việc với giao thức TCP hoặc sử dụng XML web service Wednesday, March 21, 2012...

29p thangkhongusi 10-04-2013 135 22   Download

Lecture Operating System: Chapter 02 - Processes and Threads presented Processes, Threads, Interprocess communication, Classical IPC problems, Scheduling.

55p talata_1 22-09-2014 82 9   Download

Bài giảng Chương 5: Giao tiếp liên tiến trình của Phạm Quang Dũng cung cấp cho các bạn những kiến thức về các dạng IPC, các tiêu chuẩn phân biệt loại IPC, Shared Memory, Fast Local Communication, Memory Model và một số nội dung khác.

34p maiyeumaiyeu25 16-12-2016 154 7   Download

Magnetic bearing systems have received much attention in the research community for the past decades. Its inherent nonlinearity and open-loop instability present challenges for controller design. This thesis investigates and designs model predictive control (MPC) systems for an experimental Active Magnetic Bearing (AMB) laboratory system. A host-target development environment of real-time control system with hardware in the loop (HIL) is used for implementation of the predictive control systems. In this thesis, both continuous and discrete time model predictive controllers are studied.

172p runthenight05 01-03-2023 9 3   Download

The mobile phone is a ubiquitous portable device capable of generating and displaying narrative content in the form of voice communications, text, images and video. It could be said that hybrid devices such as the mobile phone can create hybrid narratives. It is the aim of this exegesis to outline the theories, concepts and artistic practices that inform the design, production and display of narrative content that utilizes the potential of the mobile phone as a tool for storytelling.

82p runthenight05 01-03-2023 12 4   Download

Since community buildings are a large group of assets managed by local city councils, current research has the potential to identify asset management deficiencies and assist in improving an integrated management model by: Establishing deterioration trends in building components for community buildings; Validating proposed deterioration using case-study data; Developing a database of costs to facilitate optimisation of maintenance; Developing a methodology to integrate deterioration and cost to optimize maintenance requirements.

186p runthenight05 01-03-2023 9 3   Download

The aim of this research is to produce information on decision making in relation to fertiliser use. This information can be used in the Game Theory model to calculate optimal strategies on phosphorus fertiliser application amounts for the individuals within the group. If the results indicate a benefit to the individual and the community as a whole, and are seen as practical, then on a catchment wide basis this should lead to changes in management practices that will minimise phosphorus pollution of the Hopkins River catchment’s waterways.

174p runthenight07 01-03-2023 9 4   Download

The researcher of this project is a volunteer worker at the International Buddhist College of Victoria. Anecdotal evidence has put forwarded prior to this research that communication and relationships between parents and children in IBCV were deteriorating as a result of parents working long hours and children spending too much time playing computer games.

93p runthenight07 01-03-2023 15 3   Download

The project's main objectives were to analyse the data obtained during geological exploration and use it to model and predict biological patterns in order to answer the main research questions: 1) Is there a statistical relationship between the environmental parameters and the benthic community composition and morphospecies observed? 2) Can predictive models be developed from this relationship? In achieving these main objectives, the project also developed recommendations for methods that could be applied during geological exploration voyages to maximise the potential use of data collected.

206p runthenight04 02-02-2023 6 2   Download

The aim of the research is to explore the effects of Thai culture on the efficacy of Western modelled performance management (PM) in a cross-cultural setting. Thailand is becoming increasingly important to Australian businesses, particularly in view of the ASEAN Economic Community Plan, which is now in its final stages implementation (ASEAN 2015). The primary data for this study was sourced from 43 semistructured and in-depth interviews with 30 participants.

264p runthenight04 02-02-2023 8 2   Download

Trade and world economic integration are seen as the impetus for accelerating the well-beings of the domestic Vietnamese communities and international community in the region. However, an understanding of the link between trade and economic integration from the perspective of Vietnam is missing. Empirical studies on Vietnamese trade are in lack to address these determinants (see, Le, 1996; Nguyen, 2010). This thesis identifies the key factors that have driven the impressive growth of Vietnamese exports during the world economic integration process (1986-2010).

473p runthenight04 02-02-2023 12 3   Download

This study has explored the impact of the community integration of ATDs (Australian Trained Doctors) and OTDs (Overseas Trained Doctors) in rural and remote communities on their quality of life (QOL) and its resultant effect on their retention by developing a model of research linking QOL as the intervening variable between community integration (the independent variable) and retention (the dependent variable). A national survey of 279 rural and remote GPs was conducted between September and December 2010.

327p runthenight04 02-02-2023 8 3   Download

This thesis provides a first step towards understanding how fear of crime, perceived risk, perceptions of unsafety, and avoidance behavior reciprocally and positively influence each other; and how personal characteristics and community-related factors influence threat of victimization within a nonrecursive frame of reference, laying the groundwork and advancing conceptual foundations upon which threat of victimization can be assessed.

270p runthenight04 02-02-2023 7 3   Download

The present study contributed to the body of knowledge by providing a theoretical framework in modelling and predicting host residents’ interactive behaviour towards tourists, and a comprehensive understanding of the roles that psychologic, demographic and socio-graphic factors plays in the different directions of community attitudes towards tourism. It also provided tourism authorities with practical recommendations and implications in terms of tourism planning and a harmonious relationship between the host residents and tourists.

178p runthenight04 02-02-2023 12 5   Download

The study "A study on the use of body language in oral presentations by the English majors at Hai Phong University of Management and Technology" is conducted with the aims to: introduction to body language for students; the effect of using sign language on the presentation; the importance of using sign language for presenters and listeners; practical application of sign language in presentations of Hai Phong University of Management and Technology students;...

53p vuhuyennhi 06-09-2022 23 10   Download

Two following objectives: To survey the BMD with DXA method and determine the rate of osteoporosis in the community, along with factors related to osteoporosis in postmenopausal women; To assess the fracture risk in the community through two Garvan and FRAX models.

27p petsematary 02-06-2021 20 3   Download

Evaluating nonlinear HPA models regarding to problem of simulating intermodulation products (IMP). Proposing the polysine model for precise simulation of IMPs, especially for signals with complex structures. Proposing the use of predistortion schemes for MIMO-STBC systems based on thorough analyses of the nonlinear HPA effects on these systems with transmit/receive filters introduced in the model.

14p gaocaolon6 30-07-2020 36 1   Download

In this thesis, we investigate the problem of IoT services deployment in Cloud-Fog system to provide IoT services with minimal resource usage cost. We for-mulate the problem using a Mixed-Integer Linear Programming model taking into account the characteristics of computing and transmission resources in Cloud-Fog system as well as the IoT services specific requirements.

55p tamynhan0 04-07-2020 15 3   Download

Soil erosion strongly affects crop yield, undermines the long term productivity of farm land and sustainability of farming system, and poses a major threat to the livelihood of the farmers and rural communities. The United Nations Environmental Program reported that the productivity of soil has reduced and resulting in economically unfeasible cultivation on about 20 million hectare of land each year due to soil erosion and resulting degradation of land.

17p chauchaungayxua6 26-06-2020 23 3   Download