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31. Aoci currently is engaged in development and production of second generation HF power supply transformer ( planar transformer )and third generation power supply( coaxial transformer).

32. An experiment circuit to simulate primary voltage of HF switching transformer is put forward.

33. This paper describes a series of new HF complexing liquid agents , and there usage.

34. The invention relates to HF/fluoride-free etching and doping media which are suitable for etching silicon dioxide layers and doping subjacent silicon layers.

35. A new algorithm stream function method ( SFM ), engendering vector currents from radial currents mapped by two HF Radar sites detection is provided.

36. As loudspeaker radiation varies according to frequency, LF and HF drivers have intrinsically different radiation patterns whose directivity - known as 'Q' - changes at the crossover frequency.

37. Ab initio HF/6 31G calculations have been performed for the rearrangement mechanism of 1,2 shift in lithium allyl vinyl ether.

38. User at the telephone set A desires to place a call through the HF system to distant telephone set D.

39. This paper describes a HF networking controller for HF adaptive communication system, the protocol of HF network layer and hardware are introduced.

40. Wanshicheng has exquisite craft, advanced plating assembly line, stamping machine, HF welding machine and other relevant equipment.

41. Be sure your Gunn diode does not oscillate at audio or HF as well.

42. The corrosive action of neutral and reducing gas streams containing HF at high temperatures on fireclay and high-alumina refractories has been investigated.

43. We compared on - line hemofiltration to high - flux hemodialysis ( HF - HD ) in patients in a sequential manner.

44. All patients had either a recent hospitalization for HF or corroborative evidence of HF, such as pulmonary congestion or left-ventricular hypertrophy.

45. The application of HF ground wave radar in the remote sensing of sea-state is surveyed. The theory and method for extraction of sea-state from HF ground wave radar Doppler spectrum are outlined.

46. Skin contacted by HF, vapor, or aqueous solution rapidly produces an erythematous (reddened) area, often with a white or gray color at the surface caused by coagulation of tissue.

47. For HF ground wave OTH radar to detect ship targets in the shipboard environment is faced with a range of technical challenges.

48. Silicon, semiconductor material , can form different configurations at anodic bias etching system in the HF electrolyte.

49. In this paper, the conception of the model recognition-tracking-coordinate transfer data processor in HF skywave OTH-B Radar is described.

50. The simulation results show that the HF TDLs communication based on multitone parallel transmission can avoid narrowband jamming effectively such as multitone jamming.

51. The British had recently installed HF /DF (Huff-Duff) sets, an electronic radio detection system on their escorts.

52. This paper describes a series of new HF complexing liquid fluorinating agents , and there usage.

53. In this paper, some key technologies of frequency spectrum analysis and display are used to design real-time frequency analyzer which is suitable for HF signal.

54. Analytic expressions for the tap weights and minimum mean square errors of adaptive equalizer in HF serial systems are obtained.

54. Sentencedict.com try its best to collect and make good sentences.

55. Because the HF horn had a very large mouth diameter it had an inherently low cutoff frequency.

56. The enrichment of the HFS elements such as Nb, Ta, Zr, Hf suggests that the forming environment of Zedang ophiolite is not related to plate subduction.

57. In this paper, signal preprocessing for bearing determination of ocean surface radial current mapping by HF ground wave radar based on MUSIC is investigated.

58. The first hyperpolarizability and molecular frontier orbit properties of barbituric acid derivatives are studied at HF/6-31G level by coupled perturbed Hartree-Fock(CPHF) method.

59. When combining the absolute volume of HF with the DHF, the diagnostic rate was 76 %.

60. It is an economical and effective method to observe and study ionospheric movements by using HF Doppler shift and angle of arrival techniques.