Online Section

2022 ◽  
Keyword(s):  
Full Size

Online section presents full-size, uninterrupted figures presented on sequential pages in the printed edition.

LUKENS TOOL STEELS

Alloy Digest ◽  
1997 ◽  
Vol 46 (2) ◽  
Keyword(s):  
Tool Steel ◽  
Cold Work ◽  
Tool Steels ◽  
Steel Company ◽  
Full Size ◽  
Heat Treated

Abstract Lukens cold-work tool steels A2, D2, O1, S5, and S7 are used in applications where an air-hardening, oil-hardening, or shock-resisting tool steel is required. These steels are available in full-size, annealed plates suitable for saw cutting and/or finishing. Parts can subsequently be machined and heat treated to a range of hardness requirements. For improved internal cleanliness, all Lukens cold-work tool steels are produced with maximum sulfur levels of 0.010%. This datasheet provides information on composition. It also includes information on machining and joining. Filing Code: TS-550. Producer or source: Lukens Steel Company.

Compact specification of polar codes

2019 ◽  
pp. 40-47
Author(s):  
R. A. Morozov ◽  
P. V. Trifonov
Keyword(s):  
Storage Capacity ◽  
Low Complexity ◽  
Practical Implementation ◽  
Polar Codes ◽  
Practical Relevance ◽  
Memory Consumption ◽  
Full Size ◽  
The Family ◽  
Erasure Probability ◽  
Binary Erasure Channel

Introduction:Practical implementation of a communication system which employs a family of polar codes requires either to store a number of large specifications or to construct the codes by request. The first approach assumes extensive memory consumption, which is inappropriate for many applications, such as those for mobile devices. The second approach can be numerically unstable and hard to implement in low-end hardware. One of the solutions is specifying a family of codes by a sequence of subchannels sorted by reliability. However, this solution makes it impossible to separately optimize each code from the family.Purpose:Developing a method for compact specifications of polar codes and subcodes.Results:A method is proposed for compact specification of polar codes. It can be considered a trade-off between real-time construction and storing full-size specifications in memory. We propose to store compact specifications of polar codes which contain frozen set differences between the original pre-optimized polar codes and the polar codes constructed for a binary erasure channel with some erasure probability. Full-size specification needed for decoding can be restored from a compact one by a low-complexity hardware-friendly procedure. The proposed method can work with either polar codes or polar subcodes, allowing you to reduce the memory consumption by 15–50 times.Practical relevance:The method allows you to use families of individually optimized polar codes in devices with limited storage capacity. 

FULL-SIZE BENDING TEST AND ANALYSIS OF SQUARE STEEL PIPES WITH BOLTED JOINTS FOR UNDERPASS CONSTRUCTION METHOD

2016 ◽  
Vol 72 (1) ◽  
pp. 39-52
Author(s):  
Tomoya NAKAMURA ◽  
Yota TOGASHI ◽  
Kiwamu TSUNO ◽  
Noriyuki OKANO ◽  
Yukinori KOYAMA
Keyword(s):  
Construction Method ◽  
Bolted Joints ◽  
Bending Test ◽  
Full Size ◽  
Steel Pipes

scholarly journals Effect of buried depth on thermal performance of a vertical U-tube underground heat exchanger

Open Physics ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 327-330
Author(s):  
Li Yang ◽  
Bo Zhang ◽  
Jiří Jaromír Klemeš ◽  
Jie Liu ◽  
Meiyu Song ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Fluid Velocity ◽  
Three Dimensional ◽  
Simplified Model ◽  
Two Dimensional ◽  
Construction Sites ◽  
Full Size ◽  
Unit Depth ◽  
Research Show

Abstract Many researchers numerically investigated U-tube underground heat exchanger using a two-dimensional simplified pipe. However, a simplified model results in large errors compared to the data from construction sites. This research is carried out using a three-dimensional full-size model. A model validation is conducted by comparing with experimental data in summer. This article investigates the effects of fluid velocity and buried depth on the heat exchange rate in a vertical U-tube underground heat exchanger based on fluid–structure coupled simulations. Compared with the results at a flow rate of 0.4 m/s, the results of this research show that the heat transfer per buried depth at 1.0 m/s increases by 123.34%. With the increase of the buried depth from 80 to 140 m, the heat transfer per unit depth decreases by 9.72%.

Preliminary Research of Manufacturing Technology for ITER Magnet Supports

2012 ◽  
Vol 249-250 ◽  
pp. 466-471
Author(s):  
Bing Lin Hou ◽  
Peng Yuan Li ◽  
Shu Juan Yang ◽  
Chuan Jie Pan
Keyword(s):  
Reliable Method ◽  
Manufacturing Technology ◽  
Total Weight ◽  
Toroidal Field ◽  
Poloidal Field ◽  
Full Size ◽  
Safety Requirements ◽  
The Core ◽  
Preliminary Research ◽  
Working Procedure

The International Thermal Experiment Reactor (ITER) is designed to operate for 20 years with high safety requirements. The magnets with their total weight being about 10,000t sit at the core of the ITER machine. In order to guarantee the safety of the ITER machine, the research of the manufacturing technology for ITER magnet supports (MS) is an indispensable working procedure before the MS are produced. The MS consist of toroidal field (TF) gravity supports (GS), poloidal field (PF) supports and correction coils (CC) supports. This paper summarizes that the preliminary research results for the manufacturing of the GS with thermal anchor, the reliable method to manufacture the U-shaped clamp with tapered slots for PF coil supports and the special devices for test of full-size fasteners used in all the MS.

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