The generation of a reference design for TRIUMF kaon factory booster magnet excitation

Author(s):  
K.W. Reiniger
Electronics ◽  
2021 ◽  
Vol 10 (13) ◽  
pp. 1572
Author(s):  
Ehab A. Hamed ◽  
Inhee Lee

In the previous three decades, many Radiation-Hardened-by-Design (RHBD) Flip-Flops (FFs) have been designed and improved to be immune to Single Event Upsets (SEUs). Their specifications are enhanced regarding soft error tolerance, area overhead, power consumption, and delay. In this review, previously presented RHBD FFs are classified into three categories with an overview of each category. Six well-known RHBD FFs architectures are simulated using a 180 nm CMOS process to show a fair comparison between them while the conventional Transmission Gate Flip-Flop (TGFF) is used as a reference design for this comparison. The results of the comparison are analyzed to give some important highlights about each design.


Author(s):  
Andrzej Gessner ◽  
Roman Staniek

The publication demonstrates an accuracy assessment method for machine tool body casting utilizing an optical scanner and a reference design of the machine tool body. The process allows assessing the casting shape accuracy, as well as determining whether the size of the allowances of all work surfaces is sufficient for appropriate machining, corresponding to the construction design. The described method allows dispensing with the arduous manual operation - marking out. Marking out, depending on the size and complexity, might take several working shifts for prototype casting. In case of large and elaborate casts, as those of machine tool bodies, marking out is often restricted only to the first cast of the desired body produced in a given casting mold. Such course of action is based on an assumption that casting is reproducible; hence, no need to assess each and every individual cast. While this approach saves time, it often results in late detection of casting errors (allowance shifts or insufficiencies) during the actual machining process. That, in turn, results in considerable losses due to the disruption of the work process and often demands cast repair. The aim of the hereby presented study is to introduce a new technological premise dispensing with manual marking out as well as allowing fast verification of the cast shapes.


Author(s):  
Andres Lopez ◽  
Daniel E. Quevedo ◽  
Ricardo Aguilera ◽  
Tobias Geyer ◽  
Nikolaos Oikonomou

2012 ◽  
Vol 591-593 ◽  
pp. 148-151
Author(s):  
Yuan Yuan Teng ◽  
Da Shan Dong ◽  
Hui Qing Qiu

Taking the limit intensity as a starting point, a plasticity design theory is introduced in the design of the transit platform’s panel of double trolley quayside container crane for replacing elasticity design theory as a conventional method. As to the impact dynamics issue, the study gives a theoretical derivation based on the energy law as well as a verification of the experiments of the lockpins’ falling , and uses simulations with Ansys/Ls-dyna condition. Combining the above three aspects, the results prove to be correct. Given the limitations and requirements of the practical situation and the standards, a reasonable design is offered. Through full consideration, it provides the value of the experience for future reference design and should be widely extended to use.


1965 ◽  
Author(s):  
P.J. Persiani ◽  
T.R. Bump ◽  
W.J. Kann
Keyword(s):  

Science ◽  
1991 ◽  
Vol 254 (5028) ◽  
pp. 36-37
Author(s):  
F. FLAM
Keyword(s):  

2021 ◽  
Author(s):  
Bas Reedijk ◽  
Pieter Bakker

<p>The Afsluitdijk forms 32 km of the primary sea defence of the Netherlands. The Afsluitdijk was built as a closure dam in 1932 and separates the IJsselmeer from the Wadden-Sea and North Sea. Because of climate change the Afsluitdijk needs to be strengthened. A higher crest height is required to limit overtopping at higher water levels due to sea level rise. Heavier armour is required to protect the Afsluitdijk from higher wave heights. Because of the historic value of the Afsluitdijk, stringent architectural requirements are in place on the visual appearance of the dam after strengthening [1]. Therefore, a new concrete armour unit was developed to provide protection of the seaward side of the Afsluitdijk. This armour unit is called XblocPlus. The development of the armour unit is based on the breakwater armour unit Xbloc which has been applied since 2004. A saving of 56% on CO2 footprint was achieved compared to the Clients reference design.</p>


Author(s):  
Arun Shivaram ◽  
Nagi G. Naganathan

Abstract Given the design of a sheet metal component that is to be produced by pressworking, there can be more than one design for the die to produce that component. It will be desirable if a mechanism exists to identify the better of the design alternatives. A method referred to as Die Producibility Evaluation Method (DPEM) is presented in this paper to evaluate the design of a given pressworking die. The method involves identification and classification of the parameters involved in the design and operation of the pressworking die. These parameters are categorized as design cost factors and process cost factors. For a given die design, the design and process cost factors are identified and the results are tabulated in the DPEM table. In order to illustrate the method, a particular sheet metal component is chosen. A set of dies required to produce this component is then designed by a novice designer. This design is referred to as the initial design. The Die Producibility Evaluation Method is applied to the initial design, the DPEM table is updated, and an improved design is identified based on the evaluations recorded in the DPEM table. In order to provide a measure of quality, a second design is carried out under the guidance of an expert designer and is referred to as the reference design. It is shown that the improved design closely matches the reference design, thus illustrating the level of performance and applicability of the Die Producibility Evaluation Method.


Sign in / Sign up

Export Citation Format

Share Document