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  2. 4 Blocks - Wikipedia

    en.wikipedia.org/wiki/4_Blocks

    4 Blocks is a German drama series. It stars Kida Khodr Ramadan as Ali "Toni" Hamadi, the leader of a drug cartel in Berlin - Neukölln which has strong connections with the Arab crime families including his clan.

  3. Polish railway signalling - Wikipedia

    en.wikipedia.org/wiki/Polish_railway_signalling

    S2 proceed (>2 blocks free) S3 proceed (2 blocks free) S5 stop at next signal (1 block free) S1 stop, train ahead: other: S1a is a special-case aspect, which forbids passing a signal displaying it, just like S1 on semi-automatic signals. It is used for safety reasons, for example, to forbid entering a tunnel during fire alarm. Other aspects are ...

  4. Signalling block system - Wikipedia

    en.wikipedia.org/wiki/Signalling_block_system

    These moving block systems have become popular since the required technology first started appearing in the 1970s. In such systems, any train on the route can listen for signals from all the other trains, and then move in a way to ensure they have enough distance to stop. Early moving block systems used a cable strung along the rail line.

  5. Railway signalling - Wikipedia

    en.wikipedia.org/wiki/Railway_signalling

    Most blocks are "fixed", i.e. they include the section of track between two fixed points. On timetable, train order, and token-based systems, blocks usually start and end at selected stations. On signalling-based systems, blocks start and end at signals. The lengths of blocks are designed to allow trains to operate as frequently as necessary.

  6. DC block - Wikipedia

    en.wikipedia.org/wiki/DC_block

    DC blocks also help suppress signal leakage, such as modulation leakage in signal sources, thereby improving the system’s signal integrity. They can enhance the signal-to-noise ratio (SNR) in sensitive communication systems by preventing the intrusion of unwanted currents.

  7. Residual neural network - Wikipedia

    en.wikipedia.org/wiki/Residual_neural_network

    A bottleneck block [1] consists of three sequential convolutional layers and a residual connection. The first layer in this block is a 1x1 convolution for dimension reduction (e.g., to 1/2 of the input dimension); the second layer performs a 3x3 convolution; the last layer is another 1x1 convolution for dimension restoration.

  8. List of multi-level bridges - Wikipedia

    en.wikipedia.org/wiki/List_of_multi-level_bridges

    Bridge between New Town Plaza I and Citylink Plaza and Sha Tin station across Tai Po Road — Sha Tin and East Rail; Between the north and south blocks of S.K.H. St. Peter's Primary School [14] A footbridge across Shek Yam Street [15] Tai Po Road — Tai Wai and Tsing Sha Highway over East Rail (two levels of flyovers and a footbridge over ...

  9. Poland - Wikipedia

    en.wikipedia.org/wiki/Poland

    In 2020, 50.2% of Poles resided in detached dwellings and 44.3% in apartments. [292] The most populous administrative province or state is the Masovian Voivodeship and the most populous city is the capital, Warsaw , at 1.8 million inhabitants with a further 2–3 million people living in its metropolitan area .