A new method for improving the tritium breeding and releasing performance of China Fusion Engineering Test Reactor phase
            II
            helium‐cooled ceramic breeder blanket

PurposeDifferent real cases indicate that the quality of a process is better monitored by a functional relationship rather than the traditional statistical process control (SPC) methods. This approach is referred to as profile monitoring. A serious objective in profile monitoring is the sensitivity of a model to very small changes of the process. The rapid progress of the precision manufacturing also indicates the importance of identifying very small shift types of a process/product profile curve. This sensitivity allows one to identify the fault of a process sooner compared to the case of lack of the capability.Design/methodology/approachThis paper proposed a new method to monitor very small shift types of a polynomial profile for phase II of the SPC. The proposed method was named as MGWMA-PF. The performance capability of the proposed approach was evaluated through several numerical examples. A real case study was also used to investigate the capability of the proposed model.FindingsThe results addressed that the proposed method was capable of detecting very small shift types effectively. The numerical report based on the average run length (ARL) term revealed the more sensitivity of the proposed model compared to other existing methods of the literature.Originality/valueThis paper proposes a new method to monitor very small shift types of a polynomial profile for phase II of the SPC. The proposed method provides detecting a very small change manifested itself to the process.

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Linear stability of toroidal Alfvén eigenmodes in the Chinese Fusion Engineering Test Reactor

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2016.12.011 ◽

2017 ◽

Vol 114 ◽

pp. 118-126 ◽

Cited By ~ 5

Author(s):

Wenjun Yang ◽

Guoqiang Li ◽

Youjun Hu ◽

Xiang Gao

Keyword(s):

Linear Stability ◽

Alfven Eigenmodes ◽

Fusion Engineering ◽

Test Reactor

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Longitudinal and circumferential spread of spike bursts in canine jejunum in vivo

AJP Gastrointestinal and Liver Physiology ◽

10.1152/ajpgi.1980.239.4.g311 ◽

1980 ◽

Vol 239 (4) ◽

pp. G311-G318 ◽

Cited By ~ 1

Author(s):

N. S. Dusdieker ◽

R. W. Summers

Keyword(s):

Phase Ii ◽

Slow Wave ◽

Intestinal Motility ◽

New Method ◽

Phase Iii ◽

Cross Sectional ◽

Spike Burst ◽

Healthy Dogs ◽

Spike Bursts

This study demonstrates a new method for quantitatively analyzing individual intestinal spike bursts and establishes the distribution of spike burst spread under conditions of fasting and feeding in conscious healthy dogs. The dimensions and propagation lengths of individual jejunal spike bursts were determined by studying spike burst spread within slow-wave cycles. Electromyograms were recorded simultaneously from multiple closely spaced serosal electrodes in the jejunum (4 equally distant around the circumference and 16 along the long axis at 3-cm intervals). At least 75% of the time, spike bursts involved the entire cross-sectional circumference simultaneously. Greater than 50% of spike bursts during fasting or feeding spread distally 3-30 cm. The remainder were isolated or segmental spike bursts involving < 3 cm of jejunum. The lengths of propagative spike bursts increased with the time during phase II and reached a maximum of 30-40 cm during phase III. Fed activity showed a mixture of segmental and longer propagative spike bursts that varied little with time after feeding. Propagative spike bursts > 3 cm in length produced at least 85% of the total myoelectric burst activity regardless of the state of fasting or feeding and constitute the major form of intestinal motility in the canine jejunum.

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Conceptual Design and Neutronics/Thermal-Hydraulic Coupling Optimization Analyses of Two Typical Helium Cooled Solid Breeder Blanket Modules for CFETR Phase II

Volume 5: Advanced Reactors and Fusion Technologies; Codes, Standards, Licensing, and Regulatory Issues ◽

10.1115/icone26-81539 ◽

2018 ◽

Author(s):

Shijie Cui ◽

Dalin Zhang ◽

Wenxi Tian ◽

G. H. Su ◽

Suizheng Qiu

Keyword(s):

Conceptual Design ◽

Phase Ii ◽

Fusion Energy ◽

Operation Condition ◽

The Past ◽

Self Sufficiency ◽

Hydraulic Coupling ◽

The Future ◽

Test Reactor ◽

Solid Breeder Blanket

Chinese Fusion Engineering Test Reactor (CFETR) is a new test Tokamak device which is now being designed in China to make the transition from the International Thermonuclear Experimental Reactor (ITER) to the future Fusion Power Plant (FPP). Breeding blanket is the key component of fusion reactor which is mainly responsible for the tritium self-sufficiency and fusion energy conversion. In the past few years, three kinds of blanket conceptual design schemes have been proposed and tested in parallel for CFETR Phase I, in which the helium cooled solid breeder (HCSB) blanket concept is acknowledged as the most promising one. However, nowadays, the design phase of CFETR has gradually changed from I to II aiming for the future DEMO operation condition, the main parameters of which are quite different from the previous one. Therefore, it’s necessary to perform conceptual design and various analyses for the HCSB blanket under the new working condition. In this work, firstly, a new conceptual design scheme of HCSB blanket for Phase II is put forward. Then, the radial build arrangements, of the two typical blanket modules are optimized by using the NTCOC. This work can provide valuable references for further conceptual design and neutronics/thermal-hydraulic coupling analyses of the HCSB blanket for CFETR Phase II.

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