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Virtual Routing
VRF may refer to: * Variable refrigerant flow, for heating and cooling * Verifiable random function, in cryptography * Virtual routing and forwarding * Vitiligo Research Foundation * Visiting research fellow (see Visiting scholar) {{Disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variable Refrigerant Flow
Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented by Daikin, Daikin Industries, Ltd. in 1982. Similar to ductless mini-split systems, VRFs use refrigerant as the primary cooling and heating medium, and are usually less complex than conventional chiller-based systems. This refrigerant is conditioned by one or more condensing units (which may be outdoors or indoors, water or air cooled), and is circulated within the building to multiple indoor units. VRF systems, unlike conventional chiller-based systems, allow for varying degrees of cooling in more specific areas (because there are no large air handlers, only smaller indoor units), may supply hot water in a heat recovery configuration without affecting efficiency, and switch to heating mode (heat pump) during winter without additional equipment, all of which may allow for reduced energy consumption. Also, air handlers and large ducts are not used which can reduce the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verifiable Random Function
Verification or verify may refer to: General * Verification and validation, in engineering or quality management systems, is the act of reviewing, inspecting or testing, in order to establish and document that a product, service or system meets regulatory or technical standards ** Verification (spaceflight), in the space systems engineering area, covers the processes of qualification and acceptance * Verification theory, philosophical theory relating the meaning of a statement to how it is verified * Third-party verification, use of an independent organization to verify the identity of a customer * Authentication, confirming the truth of an attribute claimed by an entity, such as an identity * Forecast verification, verifying prognostic output from a numerical model * Verifiability (science), a scientific principle * Verification (audit), an auditing process Computing * Punched card verification, a data entry step performed after keypunching on a separate, keyboard-equipped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Routing And Forwarding
In IP-based computer networks, virtual routing and forwarding (VRF) is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time. One or more logical or physical interfaces may have a VRF and these VRFs do not share routes. Therefore, the packets are only forwarded between interfaces on the same VRF. VRFs are the TCP/IP layer 3 equivalent of a VLAN. Because the routing instances are independent, the same or overlapping IP addresses can be used without conflicting with each other. Network functionality is improved because network paths can be segmented without requiring multiple routers. Simple implementation The simplest form of VRF implementation is VRF-Lite. In this implementation, each router within the network participates in the virtual routing environment in a peer-based fashion. While simple to deploy and appropriate for small to medium enterprises and shared data centers, VRF Lite does not scale to the size req ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitiligo Research Foundation
The Vitiligo Research Foundation (VRF) is a 501(c)(3) non-profit organization focused on the human skin disease, vitiligo. Main initiatives Initiatives established or supported by the VRF include a Vitiligo BioBank and CloudBank, sponsorship of World Vitiligo Day, a World Vitiligo Map of vitiligo research centers, patient support groups, and related healthcare providers, and an initiative to facilitate crowdfunding of small related research efforts. History, governance, and funding The Vitiligo Research Foundation was founded in 2010 by Russian entrepreneur Dmitry Aksenov, whose daughter has vitiligo, after he concluded that there was a lack of research into the disease. It is managed by a small team of permanent staff, and led by a Board of Directors (Torello Lotti, Professor, Dermatology Division, Marconi University, chair). A Scientific Advisory Board advises on scientific issues. The VRF's Public Advisory Board advises the Foundation on aspects of living with vitiligo and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
