Impact of mass uncertainty on astrophysical rates and $$(p,\gamma )$$–$$(\gamma ,p)$$ equilibrium in the rp-process

2021 ◽  
Author(s):  
N. N. Duy ◽  
N. K. Uyen ◽  
K. Y. Chae
Keyword(s):  
Rp Process ◽  
Mass Uncertainty

Masses along the rp-process path and large scale surveys on Cu, Ni and Ga with ISOLTRAP

2004 ◽  
Vol 746 ◽  
pp. 487-492 ◽  
Author(s):  
F. Herfurth ◽  
G. Audi ◽  
D. Beck ◽  
K. Blaum ◽  
G. Bollen ◽  
...  
Keyword(s):  
Large Scale ◽  
Rp Process

scholarly journals High-precision mass measurements for the rp-process at JYFLTRAP

2017 ◽  
Vol 165 ◽  
pp. 01008
Author(s):  
Laetitia Canete ◽  
Tommi Eronen ◽  
Ari Jokinen ◽  
Anu Kankainen ◽  
Ian D. Moore ◽  
...  
Keyword(s):  
High Precision ◽  
Mass Measurements ◽  
Rp Process ◽  
High Precision Mass Measurements ◽  
Precision Mass Measurements

scholarly journals Revelation of Double Magicity in N = Z Nuclei in the RP-Process Region

2010 ◽  
Author(s):  
M. M. Sharma ◽  
J. K. Sharma ◽  
Yu. E. Penionzhkevich ◽  
S. M. Lukyanov
Keyword(s):  
Process Region ◽  
Rp Process

scholarly journals USE OF FUSED DEPOSITION MODELING PROCESS IN INVESTMENT PRECISION CASTING AND RISK OF USING SELECTIVE LASER SINTERING PROCESS

2012 ◽  
pp. 226-230
Author(s):  
SIVADASAN M ◽  
N.K SINGH ◽  
ANOOP KUMAR SOOD
Keyword(s):  
Fused Deposition Modeling ◽  
Selective Laser Sintering ◽  
Thermal Response ◽  
Acrylonitrile Butadiene Styrene ◽  
Laser Sintering ◽  
Precision Casting ◽  
Fused Deposition ◽  
Rp Process ◽  
Deposition Modeling ◽  
Metallic Parts

Investment Castings (IC) is one of the most economical ways to produce intricate metallic parts when forging, forming and other casting processes tend to fail. However, high tooling cost and long lead time associated with the fabrication of metal moulds for producing IC wax (sacrificial) patterns result in cost justification problems for customized single casting or small-lot production. Generating pattern using rapid prototyping (RP) process may be one of the feasible alternatives. For this purpose present study assessed the suitability of the fused deposition modeling (FDM) process for creating sacrificial IC patterns by studying FDM fabricated part thermal response at various temperatures. A series of experiments with RP patterns are conducted and a set of test castings are also made in steel for establishing feasibility. The build material used is acrylonitrile butadiene styrene (ABS). As an annexe to this work a concurrent attempt is also made to quantify the risk in using Selective Laser Sintering patterns for Investment Castings. Authors hope this work might establish applicability of ABS in IC and also lead the investigations to theoretically tone down the shell cracking tendency with Selective Laser Sintering patterns when Proprietary Duraform is used as the build material.

scholarly journals Mass Measurements for the rp Process

2017 ◽  
Author(s):  
Anu Kankainen ◽  
Laetitia Canete ◽  
Tommi Eronen ◽  
Dmitry Gorelov ◽  
Jani Hakala ◽  
...  
Keyword(s):  
Mass Measurements ◽  
Rp Process

An Infrastructure to Support Closed Loop Product Development Practice Coupled With Rapid Prototyping

1998 ◽  
Author(s):  
Shuichi Fukuda ◽  
Ping-Yu Jiang
Keyword(s):  
Product Development ◽  
Rapid Prototyping ◽  
Quality Function Deployment ◽  
Closed Loop ◽  
Design Procedure ◽  
Optimal Solution ◽  
Chain Process ◽  
Process Chain ◽  
Rp Process ◽  
Development Practice

Abstract This paper deals with a methodology to use rapid prototyping and tooling to aid the product development practice. Under the support of the distributive activity scheduling mechanism and the unified product data model, a closed loop is described, which consists of design-phase-oriented requirement analysis of RP/RT applications, multi-criterion decision-making mechanism for selecting the combination of materials, RP method, and RP process chain, process planning for rapid prototyping and tooling, data collections from RP manufacturing, design evaluations based on manufactured prototypes, as well as case-based learning from RP process chain. Here, quality function deployment is used for quality control and assurance of such a design closed cycle. Several such closed loops during product design procedure will make the product go to a optimal solution. In addtion, concurrence and competence issues inside a closed loop design evaluation cycle are also discussed. Finally, a conclusion about this methodology is drawn.

scholarly journals Consistency of Control Performance in 3D Overhead Cranes under Payload Mass Uncertainty

Electronics ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 657 ◽  
Author(s):  
Uyen Tu Thi Hoang ◽  
Hai Xuan Le ◽  
Nguyen Huu Thai ◽  
Hung Van Pham ◽  
Linh Nguyen
Keyword(s):  
Closed Loop ◽  
Sliding Mode ◽  
Lyapunov Theory ◽  
Control Technique ◽  
Control Performance ◽  
Loop Control ◽  
Closed Loop Control System ◽  
Loop Control System ◽  
Mass Uncertainty ◽  
Payload Mass

The paper addresses the problem of effectively and robustly controlling a 3D overhead crane under the payload mass uncertainty, where the control performance is shown to be consistent. It is proposed to employ the sliding mode control technique to design the closed-loop controller due to its robustness, regardless of the uncertainties and nonlinearities of the under-actuated crane system. The radial basis function neural network has been exploited to construct an adaptive mechanism for estimating the unknown dynamics. More importantly, the adaptation methods have been derived from the Lyapunov theory to not only guarantee stability of the closed-loop control system, but also approximate the unknown and uncertain payload mass and weight matrix, which maintains the consistency of the control performance, although the cargo mass can be varied. Furthermore, the results obtained by implementing the proposed algorithm in the simulations show the effectiveness of the proposed approach and the consistency of the control performance, although the payload mass is uncertain.

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