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Non Delivery Report
A bounce message or just "bounce" is an automated message from an email system, informing the sender of a previous message that the message has not been delivered (or some other delivery problem occurred). The original message is said to have "bounced". This feedback may be immediate (some of the causes described here) or, if the sending system can retry, may arrive days later after these retries end. More formal terms for bounce message include "Non-Delivery Report" or "Non-Delivery Receipt" (NDR), [Failed] "Delivery Status Notification" (DSN) message, or a "Non-Delivery Notification" (NDN). Classification Although the Simple Mail Transfer Protocol, SMTP is a mature technology, counting more than thirty years, its architecture is increasingly strained by both normal and unsolicited load. The email systems have been enhanced with reputation systems tied to the actual sender of the email, with the idea of recipient's email servers rejecting the email when a forged sender is used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Data Representation
Network Data Representation (NDR) is an implementation of the presentation layer in the OSI model. It is used for DCE/RPC and Microsoft RPC (MSRPC). Network Data Representation (NDR) is a data encoding and decoding method used in distributed systems, specifically in Remote Procedure Call (RPC) systems. NDR is part of the Distributed Computing Environment (DCE) RPC, allowing different computers and systems to communicate by exchanging data in a standardized format. NDR facilitates data transfer between systems with different architectures, ensuring that data is correctly represented and understood on both ends. See also * DCE/RPC * Microsoft RPC Microsoft RPC (Microsoft Remote Procedure Call) is a modified version of DCE/RPC. Additions include partial support for UCS-2 (but not Unicode) strings, implicit handles, and complex calculations in the variable-length string and structure paradigm ... References External linksNDR Specification Internet Standards Internet protocol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network Detection And Response
Network detection and response (NDR) refers to a category of network security products that detect abnormal system behaviors by continuously analyzing network traffic. NDR solutions apply behavioral analytics to inspect raw network packets and metadata for both internal (east-west) and external (north-south) network communications. Description NDR is delivered through a combination of hardware and software sensors, along with a software or SaaS management console. Organizations use NDR to detect and contain malicious post-breach activity such as ransomware or insider malicious activity. NDR focuses on identifying abnormal behavior patterns and anomalies rather than relying solely on signature-based threat detection. This allows NDR to spot weak signals and unknown threats from network traffic, like lateral movement or data exfiltration. NDR provides visibility into network activities to identify anomalies using machine learning algorithms. The automated response capab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Negative Differential Resistance
In electronics, negative resistance (NR) is a property of some electrical circuits and devices in which an increase in voltage across the device's terminals results in a decrease in electric current through it. This is in contrast to an ordinary resistor, in which an increase in applied voltage causes a proportional increase in current in accordance with Ohm's law, resulting in a positive resistance. Under certain conditions, negative resistance can increase the power of an electrical signal, amplifying it. Negative resistance is an uncommon property which occurs in a few nonlinear electronic components. In a nonlinear device, two types of resistance can be defined: 'static' or 'absolute resistance', the ratio of voltage to current v / i, and ''differential resistance'', the ratio of a change in voltage to the resulting change in current \Delta v/\Delta i. The term negative resistance means negative differential resistance (NDR), \Delta v / \Delta i < 0. In general, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naming And Design Rules
{{Short description, Formal rules in metadata In metadata, Naming and Design Rules are the formal rules associated with how data elements are structured within a process of creating exchange documents between organizations. Naming and Design Rules are a set of guidelines and naming conventions that go beyond what a single data exchange standard specification will permit. The most common standard that Naming and Design Rules are created on is XML Schema. For example, the use of upper camel case data element names is a convention used in many standard but is not specified by the XML Schema specification. Naming and Design Rules have become an important aspect of each organizations data exchange standards. Within the United States, Naming and Design Rules standards are recommended for each federal and state agency. See also * metadata * XML * XML Schema An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neighborhood Deformation Retract
In topology, a retraction is a continuous mapping from a topological space into a subspace that preserves the position of all points in that subspace. The subspace is then called a retract of the original space. A deformation retraction is a mapping that captures the idea of ''continuously shrinking'' a space into a subspace. An absolute neighborhood retract (ANR) is a particularly well-behaved type of topological space. For example, every topological manifold is an ANR. Every ANR has the homotopy type of a very simple topological space, a CW complex. Definitions Retract Let ''X'' be a topological space and ''A'' a subspace of ''X''. Then a continuous map :r\colon X \to A is a retraction if the restriction of ''r'' to ''A'' is the identity map on ''A''; that is, r(a) = a for all ''a'' in ''A''. Equivalently, denoting by :\iota\colon A \hookrightarrow X the inclusion, a retraction is a continuous map ''r'' such that :r \circ \iota = \operatorname_A, that is, the composition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Data Repository
A National Data Repository (NDR) is a data bank that seeks to preserve and promote a country's natural resources data, particularly data related to the petroleum exploration and production (E&P) sector. A National Data Repository is normally established by an entity that governs, controls and supports the exchange, capture, transference and distribution of E&P information, with the final target to provide the State with the tools and information to assure the growth, govern-ability, control, independence and sovereignty of the industry. The two fundamental reasons for a country to establish an NDR are to preserve data generated inside the country by the industry, and to promote investments in the country by utilizing data to reduce the exploration, production, and transportation business risks. Countries take different approaches towards preserving and promoting their natural resources data. The approach varies according to a country's natural resources policies, level of openness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonlinear Dispersion Relation
A nonlinear dispersion relation (NDR) is a dispersion relation that assigns the ''correct'' phase velocity v_0 to a nonlinear wave structure. As an example of how diverse and intricate the underlying description can be, we deal with plane electrostatic wave structures \phi(x-v_0t) which propagate with v_0 in a collisionless plasma. Such structures are ubiquitous, for example in the magnetosphere of the Earth, in fusion reactors, or in a laboratory setting. Correct means that this must be done according to the governing equations, in this case the Vlasov-Poisson system, and the conditions prevailing in the plasma during the wave formation process. This means that special attention must be paid to the particle trapping processes acting on the resonant electrons and ions, which requires phase space analyses. Since the latter is stochastic, transient and rather filamentary in nature, the entire dynamic trapping process eludes mathematical treatment, so that it can be adequately taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nador International Airport
Nador International Airport (; ), , is an international airport serving Nador, from DAFIF (effective October 2006) a city in the Oriental region in Morocco. It is also known as Arwi Airport. Location The original location at Taouima moved to El Aroui, some 14 miles (24 km) south-southwest of Nador city. The airport lies nearly directly along the N2 national road. There is no public transport to the airport. Directly in front of the terminal there is a large (paid) parking-place which is mainly used for people bringing or picking up passengers. Also outside the terminal there are many Grand Taxis offering shared connections with most major destinations for people flying to Nador. The taxis are also often offered for private-hire: thus where there is only one (group of) passenger(s). Petit Taxis are available to come or go to the town of Al Aroui only. Overview An initial airport was created in 1931 in the village of Tawima (south of Nador town) and was the primary ai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nadur
Nadur () is an Local councils of Malta, administrative unit of Malta, located in the eastern part of the island of Gozo. Nadur is built on a plateau and is one of the largest localities in Gozo. Known as the 'second city', it spreads along a high ridge to the east of Victoria, Malta, Victoria. It had a population of 4,509 as of March 2014. The word is derived from the Arabic word ‘nadara’, which means 'lookout', pretty much having the same meaning as its motto ‘Vigilant’. The motto appears in Nadur’s coat of arms that shows the sun coming up from blue seas. The town is famous for its bakeries. Near Nadur are San Blas and Dahlet Qorrot Bays, tiny rocky bays on the North Eastern coast. These are locations for swimming, snorkeling, picnics, and trekking. History There are no documents or archaeology, archaeological evidence which could shed light on the colonisation of Nadur by its first inhabitants. Nevertheless, the plateau and its surroundings, with a few farmhouse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Driver Register
The National Driver Register (NDR) is a computerized database of information about United States drivers who have had their driver's licenses revoked or suspended, or who have been convicted of serious traffic violations, such as driving under the influence or drugs or alcohol (see 23 Code of Federal Regulations 1327 Appendix A for a complete list of violations). The records are added and maintained and deleted by the motor vehicle agency (MVA) of the state that convicted the driver or withdrew the driver's license. Checks for problem drivers When a person applies for a driver's license, either as a new applicant or as a renewing applicant in a participating state, the state MVA must check if the name is on the NDR's Problem Driver Pointer System (PDPS) (as required by federal regulation—see 23 CFR 1327.5(b)(1)). If a person has been reported to the NDR by any state as a "problem driver", the prospective licensing state must investigate the driver's history from the state that a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NDR Method
The NDR Method is a registered trademark with the US Patent and Trademark Office for the non-surgical medical treatment of spinal discs. The NDR Method was developed by Dr. Eric M. Shapiro, D.C. of Charlotte, North Carolina, US. The treatment is only for use with patients whose medical histories and advanced radiological diagnostics (magnetic resonance imaging Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and ...) have been performed and evaluated. The treatment is an advanced protocol for herniated, bulging and degenerative discs, based on the currently known and accepted anatomy of the spinal disc. References Medical treatments {{treatment-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
