edgepedia

Technology and the built world

61,984 articles

Noise schedule

A noise schedule in a diffusion model is the sequence of noise variances specifying how much Gaussian noise is added at each forward step, shaping training and sampling quality.

Noise schedules and preconditioning

A noise schedule controls how much signal and noise mix at each diffusion step, and preconditioning rescales the network's inputs, outputs, and loss for stable training.

Noise shaping (computation)

Noise shaping (computation), also known as stochastic rounding, randomly maps numbers to maintain zero-mean error, limiting accumulated error growth to the square root of $n$.

Noise uncertainty

Noise uncertainty is the gap between a receiver's estimated and actual noise power, which degrades cognitive radio spectrum sensing and imposes an SNR wall below which reliable detection fails.

Nokia

Nokia Corporation, also known as Nokia Oyj, is a Finnish telecommunications company founded in 1865 and headquartered in Espoo, one of the world's main suppliers of 5G network equipment.

Nokia 1100

The Nokia 1100 is a basic, durable GSM mobile phone announced by Nokia in 2003 for first-time users in fast-growing markets such as India and China.

Nokia 2660 Flip

The Nokia 2660 Flip is a 4G clamshell feature phone made by HMD Global and released in July 2022, reviving the original Nokia 2660 flip phone from 2007.

Nokia 3210

The Nokia 3210 is a mobile phone announced by Nokia in 1999, the first mass-market phone with an internal antenna, known for Snake and T9 text.

Nokia 3210 (2024)

The Nokia 3210 (2024) is a 4G feature phone by HMD Global, announced in May 2024, 25 years after the 1999 original, with a camera, USB-C charging, and Snake.

Nokia 3310

The Nokia 3310 is a monochrome-display GSM mobile phone announced by Nokia in 2000 and remembered as one of the best-selling phones ever, with about 126 million units sold.

Nokia 3310 (2017)

The Nokia 3310 (2017) is a 2G feature phone by HMD Global that revived the 2000 classic, unveiled at Mobile World Congress in February 2017.

Nokia 5110

The Nokia 5110 is a consumer GSM mobile phone announced by Nokia in 1998, the first with fully user-swappable front covers via Xpress-on shells and one of the phones that carried Snake to a mass audience.

Nokia 6230

The Nokia 6230 was a business-oriented feature phone released in 2004, combining EDGE data, Bluetooth, an MP3 player, a stereo FM radio, and a VGA camera in a small body.

Nokia 9210 Communicator

The Nokia 9210 Communicator is a clamshell phone and organizer from Nokia. Shipped in 2001, it was the first Communicator model to feature a color screen.

Nokia N95

The Nokia N95 is a smartphone Nokia announced as an "all-in-one multimedia computer," released in March 2007 with GPS, a 5-megapixel camera, and a two-way sliding design.

Nokia Networks

Nokia Networks is the telecommunications network equipment business of Finland's Nokia Corporation, formed in 2007 as the Nokia Siemens Networks joint venture and fully acquired in 2013.

Nolan (helmet manufacturer)

Nolan is an Italian motorcycle helmet manufacturer founded in 1972 by Lander Nocchi, which has made all its helmets in Brembate di Sopra, Bergamo, since its founding and also produces the X-lite, Grex, and N-Com brands.

Noland Arbaugh

Noland Arbaugh is an American from Yuma, Arizona, paralyzed in a 2016 swimming accident, who became the first human recipient of a Neuralink brain implant in January 2024.

Nolen matrix

The Nolen matrix is a passive microwave beamforming network, described by John C. Nolen in 1965, that gives each antenna array input port an independent radiated beam.

Nomad (motorcycle club membership)

A nomad is a full member of a motorcycle club attached to no specific chapter, wearing a bottom rocker reading "Nomad" instead of a territory.

Nomad 200

The Nomad 200, also sold as the N200, is a 1990s mobile research robot from Nomadic Technologies, combining a three-wheel synchro-drive base, a rotating sensor turret, and on-board computers.

NOMAD Laboratory

The NOMAD Laboratory, established in 2014 in Berlin, is a German research group operating NOMAD, an open-source platform making materials science data FAIR and reusable.

NOMAD Repository

The NOMAD Repository is an open repository for computational materials-science data, launched in 2014 by the NOMAD Laboratory as the first FAIR storage infrastructure for materials simulations.

NOMADS ground-based air defence system

NOMADS is a highly mobile short-range air defense system developed by Kongsberg for the Norwegian Army, combining radar, command-and-control, and missiles on one tracked vehicle.

Nomex honeycomb

Nomex honeycomb is a lightweight structural core made from DuPont's Nomex aramid paper dipped in phenolic resin, formed into hexagonal cells for aircraft sandwich panels.

Nomic Embed

Nomic Embed is a family of fully open embedding models, text, vision, and multimodal, released by Nomic AI from February 2024 with weights, code, and data all public.

Nominal Pipe Size

Nominal Pipe Size, also known as nominal bore, is a North American standard for naming pipe sizes, where each size is a name rather than an actual measurement.

Nominet

Nominet, formally Nominet UK, is the British not-for-profit registry that has operated the .uk domain since 1996, managing over 10 million names and the .gov.uk registry.

Non-blocking algorithm

A non-blocking algorithm, also called non-blocking synchronization, is a concurrent algorithm in which a delayed or failed process cannot prevent others from completing, typically built from atomic primitives like compare-and-swap.

Non-breaking space

A non-breaking space (NBSP) is a space character, written   in HTML, that prevents a line break between the words or symbols on either side.