Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Zheng-guo YAN"'
Publikováno v:
DEStech Transactions on Materials Science and Engineering.
Zirconium diboride (ZrB2) powders were synthesized by a combined sol-gel and carbothermal reduction method in which zirconium oxychloride, boric acid and phenolic resin were used as source of zirconia, boron oxide, and carbon. The infuences of molar
Publikováno v:
DEStech Transactions on Engineering and Technology Research.
In recent years, the system of traditional home hasn’t fulfilled people’s pursuit of a higher quality of life requirements. Smart home is a big trend in the future development. For the Android open platform for intelligent terminals, in order to
Autor:
Lin Zhao, Zheng Guo Yan
Publikováno v:
Applied Mechanics and Materials. :856-860
Electromagnetic defect detection logging can measure multilayer pipeline and provide the information of casing defect and the remaining metal thickness, is the hot spot of the casing defect detection technology. This paper elaborates the advantages a
Publikováno v:
Applied Mechanics and Materials. 290:133-137
This paper has designed data transmission system of logging cable based on CPLD and DSP. This system realizes the function of modulation and demodulation in BPSK with CPLD, in which the application is flexible and the circuit is simple and reliable.
Autor:
Zheng Guo Yan, Jing Kun Yu
Publikováno v:
Advanced Materials Research. :1248-1252
The nanocrystalline MgAl2O4powder was prepared by thermal explosion mode of low-temperature combustion synthesis (LCS) using urea as fuel and nitrates as oxidizers. The molar ratio of nitrates to urea and the adiabatic flame temperature was calculate
Autor:
Juan Su, Zheng Guo Yan
Publikováno v:
Advanced Materials Research. :2659-2662
Weak signal detection is the key technique in developing through-casing resistivity logging tool. In this paper, ultra-low-noise preamplifier, oversampling method, sampling integration and sampling average method, digital phase-sensitive detection te
Autor:
Juan Su, Zheng Guo Yan
Publikováno v:
Applied Mechanics and Materials. :3068-3071
Image compression method and long distance transmission technology are technical difficulties in researching digital down-hole television. A down-hole image compression and transmission system is designed. Data are transmitted with quad logging cable
Publikováno v:
Advanced Materials Research. :417-422
The paper mainly introduces C-language graphics library functions based on JRD320240B. For example, it can display Chinese word, character list, painting line and picture on any point of the LCD. And gives the corresponding hardware interface circuit
Publikováno v:
Advanced Materials Research. :716-719
Based on approximation principle, water model experiment was carried out during teeming in a 60t steel ladle. Based on the previous research work, trapezoidal nozzlein with lager upper cross section was used to decrease the critical level of vortex i
Publikováno v:
Advanced Materials Research. :467-471
This paper introduces the basic content of JRB320240B, including LCD tube foot function and operation sequence. Gives a kind of simple and practical hardware interface circuit of LCD and MCU. Design two general functions ,the painting line and circle