The Beijing Secondary Ion Probe Center is a large national scientific instrument center jointly established by the Ministry of Science and Technology, the Ministry of Land and Resources and the Chinese Academy of Sciences, with a total investment of 26 million yuan, based on the proportion of capital contribution. Its core instrument is the world's ninth SHRIMP II secondary ion probe. In the past three years, the center has insisted on the joint construction and sharing of SHRIMP II secondary ion probes, and the operating efficiency of the instruments and the output rate of scientific research achievements have entered the international advanced ranks.
Sharing and bringing high utilization rate of instruments and equipment to open and share large national scientific instruments to domestic and foreign academic circles is the basic policy for the operation of Beijing Secondary Ion Probe Center. Since its establishment three years ago, the center has been allocated 40% of the Ministry of Land and Resources, 20% of the Chinese Academy of Sciences, 20% of universities, 8% of Hong Kong and Taiwan, and 12% of foreign countries. A total of 107 researchers from more than 30 units in the relevant departments of the Ministry of Land and Resources, Chinese Academy of Sciences, universities and universities, as well as Hong Kong and Taiwan, used the SHRIMP II of the center to analyze their samples, while a large number of them came from the United States, the United Kingdom, and France. Scholars from Italy, Germany, Australia, South Korea, Brazil, Cuba and other countries also came to the center to operate. In the past 3 years, the annual net analysis time (the time when the instrument performs sample or standard sample analysis) exceeded the original 24 hours and 24 hours of continuous operation. In 2004, the net analysis time was as high as 301 days and nights.
According to estimates, the utilization and openness of SHRIMP II in the secondary ion probe center in Beijing ranks among the top in the world. Of the same instruments, only two of Australia's laboratories have similar openness and efficiency to the center. One of the US's normal operating hours is less than one-third of the center. The two in Japan are basically unable to work. A Russian team only works 12 hours a day and runs less than 1/2 of the center.
Sharing a high level of high usage rate achieves high returns on equipment investment, maximizing opportunities for a wide range of geoscientists. Domestic and foreign scholars have used the SHRIMP II of the center to obtain a large amount of data, and have applied in their own research fields. They published a large number of articles. In 2003, they published 33 papers in domestic and international scientific journals. In 2004, they grew to 73, including Nature 1. Article.
Using SHRIMP II to determine the year, the three stages of the metamorphic evolution of the ultrahigh-pressure rock in the Dabie Mountains in China were measured and the accurate time was obtained. At the same time, the “return rate†of the ultra-high pressure rock from the deep surface was calculated. This is a breakthrough. .
Sharing accelerates the internationalization process The open use of SHRIMP II instruments has attracted a large number of scholars at home and abroad to form regular academic exchanges. Researchers at the Beijing Secondary Ion Probe Center are able to regularly access new and new materials from scholars from various countries. The center organizes a “Beijing SHRIMP Results Reporting Conference†every year, and the participants are very enthusiastic. Each time more than 40 latest achievement papers are exchanged at the meeting.
Due to its openness to the international community, Beijing Secondary Ion Probe Center is quickly familiar to the global peers and naturally integrated into the international geosciences community and is widely recognized by the international community. Foreign scholars have also changed from simply using instruments to collaborating with the center to jointly study international frontier topics. In the past year, Beijing Secondary Ion Probe Center has signed research projects on the Alps with three universities in Italy; signed a research agreement on the ophiolite in Mongolia with the Institute of Geology of the Mongolian Academy of Sciences; Research agreement for ophiolite; signed a research agreement with Australia on geological issues in Greenland. In the past, Westerners took new technology and funds to China to do China's geological research, and the Beijing Secondary Ion Probe Center began to use the SHRIMP II to make research abroad. This is not only beneficial to our geoscientists to understand global geoscience issues, but more importantly, to be able to fully understand and master the geological, environmental and resource conditions of neighboring countries. This is a work involving the long-term strategic interests of the country.
Railway Track steel rails are a very important element of the overall railway track and play basic role of supporting and guiding railway vehicles, the steel railroad track must provide a continuous, smooth and resistant rolling surface for the wheels. Due to the increased new requirements, regarding railroad rail steel quality must in standards for manufacture. Type of Railroad Track Steel is expressed in grams per kilometer of steel mass, we produce different type of steel rails including Light Steel Rail, Heavy Rail, crane rail, gantry rail, and customized rails, and all passed the qualifying tests and acceptance tests. 
Parameter of Railway Track
Light Rail
Height (mm)
Bottom width (mm)
Head width (mm)
Middle thickness (mm)
Length (m)
Weight (kg/m)
Standard
8
65
54
25
7
6
8.42
YB
18
90
80
40
10
6 /8
18.06
YB
24
107
92
51
10.9
8
24.46
YB
9
63.5
63.5
32.1
5.9
6
8.94
GB
12
69.85
69.85
38.1
7.54
6/8
12.2
GB
15
79.37
79.37
42.86
8.33
6/8
15.2
GB
22
93.66
93.66
50.8
10.72
8/ 10
22.3
GB
30
107.95
107.95
60.33
12.3
8 /10
30.1
GB
Heavy Rail
Height (mm)
Bottom width (mm)
Head width (mm)
Middle thickness (mm)
Length (m)
Weight (kg/m)
Standard
33
120
110
60
12.5
12.5
33.29
GB
38
134
114
68
13
12.5
38.73
GB
43
140
114
70
14.5
12.5
44.65
TB
50
152
132
70
15.5
12.5-25
51.51
TB
60
176
150
73
16.5
12.5-25
60.64
TB
75
192
150
75
20
12.5-25
74.41
TB
Crane Rail
Height (mm)
Bottom width (mm)
Head width (mm)
Middle thickness (mm)
Length (m)
Weight (kg/m)
Standard
QU70
120
120
70
28
12
52.8
GB
QU80
130
130
80
32
12
63.69
GB
QU100
150
150
100
38
12
88.96
GB
QU120
170
170
120
44
12
118.1
GB
Railway Track
Railway Track,Steel Rail,Railroad Track Steel,Light Steel Rail
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