Design and performance tests of gas circulation heating of JT-60U vacuum vessel

2002 ◽  
Author(s):  
M. Yotsuya ◽  
T. Masuzaki ◽  
H. Sago ◽  
M. Nishikane ◽  
T. Uchikawa ◽  
...  
Keyword(s):  
Vacuum Vessel ◽  
Performance Tests ◽  
Gas Circulation ◽  
And Performance

Development of Thick Wall Welding and Cutting Tools for ITER

1998 ◽  
Vol 10 (2) ◽  
pp. 116-120
Author(s):  
Masataka Nakahira ◽  
◽  
Hiroyuki Takahashi ◽  
Kentaro Akou ◽  
Koichi Koizumi
Keyword(s):  
Arc Welding ◽  
Cutting Tools ◽  
Thick Wall ◽  
Vacuum Vessel ◽  
Performance Tests ◽  
Design Requirement ◽  
Core Component ◽  
Superconducting Coil ◽  
Narrow Space ◽  
And Performance

The Vacuum Vessel, which is a core component of International Thermonuclear Experimental Reactor (ITER), is required to be exchanged remotely in a case of accident such as superconducting coil failure. The in-vessel components such as blanket and divertor are planned to be exchanged or fixed. In these exchange or maintenance operations, the thick wall welding and cutting are inevitable and remote handling tools are necessary. The thick wall welding and cutting tools for blanket are under developing in the ITER R&D program. The design requirement is to weld or cut the stainless steel of 70 mm thickness in the narrow space. Tungsten inert gas (TIG) arc welding, plasma cutting and iodine laser welding/cutting are selected as primary option. Element welding and cutting tests, design of small tools to satisfy space requirement, test fabrication and performance tests were performed. This paper reports the tool design and overview of welding and cutting tests.

scholarly journals Development and performance tests of μ-PIC with DLC electrodes

2020 ◽  
Vol 1498 ◽  
pp. 012001
Author(s):  
A Ochi ◽  
F Yamane ◽  
Y Ishitobi ◽  
H Setsuda
Keyword(s):  
Performance Tests ◽  
And Performance

KONTRIBUSI PENGUASAAN KALIMAT EFEKTIF TERHADAP KETERAMPILAN MENULIS TEKS EKSPOSISI SISWA KELAS X SMK NEGERI 2 PADANG

2019 ◽  
Vol 8 (3) ◽  
pp. 78
Author(s):  
Diana Citra ◽  
Afnita Afnita
Keyword(s):  
Random Sampling ◽  
Writing Skills ◽  
Sampling Technique ◽  
First Year ◽  
Performance Tests ◽  
First Year Students ◽  
Correlational Design ◽  
Writing Skill ◽  
And Performance ◽  
Descriptive Method

ABSTRACT The purpose of this study was categorized into three. First, to describe the effective sentence mastery of the first year students at SMK Negeri 2 Padang. Second, to describe the writing skills of a exposition of the first year students at SMK Negeri 2 Padang. Third, to describe the contribution of the effective sentence mastery into the writing skills of a exposition text made by the first year students at SMK Negeri 2 Padang. The design of this research was quantitative with a descriptive method. Then, this study also was a correlational design. The population of this study was the first year students at SMK Negeri 2 Padang for about 498 students. The sample of this study was taken by using a proportional random sampling technique (15%), which was 70 students. The data of this study were the results of effective sentence mastery and the results of the writing skill of a exposition text. The instrument of this study was an objective test to measure effective sentence mastery and performance tests to measure expositon text. There were several results of this study. First, the effective sentence mastery of the first year students at SMK Negeri 2 Padang was in Good qualifications (B). Second, the writing skills of a exposition of the first year students at SMK Negeri 2 Padang was in a Good qualification (B). Third, describe the effective sentence mastery contributed 82,00% to the exposition text writing skills of the first year students of SMK Negeri 2 Padang. Kata Kunci: kontribusi, penguasaan kalimat efektif,  keterampilan menulis teks eksposisi 

Design on Plug Seedling Automatic Transplanter in Greenhouse

2011 ◽  
Vol 317-319 ◽  
pp. 586-589 ◽  
Author(s):  
Su Bo Tian ◽  
Li Chun Qiu
Keyword(s):  
Performance Tests ◽  
Lower Efficiency ◽  
Production Scale ◽  
Conveyor System ◽  
Flower Production ◽  
Plc Control ◽  
Urgent Task ◽  
Plug Seedling ◽  
And Performance ◽  
Production Automation

Transplanting of plug seedling is one of the most important operations during vegetable and flower production. Due to the higher labor intensity and lower efficiency for the operation, it is difficult to enlarge production scale for vegetables and flowers. Although transplanting of plug seedling is now common method, all operations are still manually conducted in China. To enlarge productivity for increasing food supply, it has become an urgent task to achieve automation of plug seedling transplanting for Chinese horticulture industry. This paper deals with the automatic transplanter for plug seedling, which is significant to promote development of production automation of seedling nursing and transplanting in China. Then, the simple, practical automatic transplanter for plug seedling, including manipulator, conveyor system for plug tray and flowerpots, overall structure and PLC control system was designed. Finally, Prototype was manufactured and performance tests were conducted. Results showed that the automatic transplanter had reliable transplanting performance.

scholarly journals Pengaruh Model Pembelajaran Kooperatif Tipe Cooperative Integrated Reading and Compositi (CIRC) dan Minat Baca Terhadap Keterampilan Menulis Karangan Deskripsi Siswa Kelas X SMA Negeri 1 Bangkinang

GERAM ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 18-26
Author(s):  
Fenny Anita
Keyword(s):  
Writing Skills ◽  
Learning Model ◽  
Performance Tests ◽  
Learning Models ◽  
Factorial Experimental Design ◽  
Essay Writing ◽  
Quasi Experimental ◽  
And Performance ◽  
Reading Interest ◽  
Better Than

This research was conducted to explain the effect of the learning model CIRC and reading interest on the results of the descriptive essay writing skills of class X SMA Negeri 1 Bangkinang. This type of research is a quantitative study using a quasi-experimental method and a 2x2 factorial experimental design. The population of this study was students of class X SMA Negeri 1 Bangkinang. Sampling was done by purposive sampling with a sample size of 60 students. Data collection was carried out using two instruments, namely questionnaires and performance tests. Based on the research results, it can be concluded that four things are as follows. First, the skills of writing essays of descriptions of students taught using the learning model CIRC are better than those taught by conventional learning models of class X students of SMA Negeri 1 Bangkinang. Second, the writing skills of students who have high reading interest who are taught using the learning model CIRC are higher than students who have high reading interest who are taught using the conventional learning model of class X students of SMA Negeri 1 Bangkinang. Third, the writing skills of students who have low reading interest who are taught using the learning model CIRC are higher than students who have low reading interest who are taught using the conventional learning model of class X students of SMA Negeri 1 Bangkinang. Fourth, there is no interaction between reading interest and learning models in influencing the writing skills of descriptive essays of class X SMA Negeri 1 Bangkinang.

scholarly journals Fabrication of PMMA X-ray Compound Refractive Lenses for the Pohang Light Source and Performance Tests

2007 ◽  
Vol 51 (4) ◽  
pp. 1256 ◽  
Author(s):  
Guk Bae Kim ◽  
Sang Joon Lee ◽  
Jin Pyung Lee ◽  
Jong Hyun Kim ◽  
Suk Sang Chang ◽  
...  
Keyword(s):  
Light Source ◽  
Performance Tests ◽  
X Ray ◽  
Pohang Light Source ◽  
And Performance
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