Narrow band resonance in the UV light region of a plasmonic nanotextured surface used as a refractive index sensor

An aperiodic plasmoic nanotextured surface with metal-dielectric-metal (MDM) multilayer nanostructure acts as a refractive index (RI) sensor in the ultra-violet light region.

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DAYA PATOGENESITAS Helicoverpa armigera Nuclear Polyhedrosis Virus HaNPV SETELAH TERKENA RADIASI SINAR ULTRAVIOLET

Journal of Biological Researches ◽

10.23869/bphjbr.6.1.20008 ◽

2000 ◽

Vol 6 (1) ◽

pp. 65-70

Author(s):

Mahanani Tri Asri ◽

Isnawati Isnawati

Keyword(s):

Biological Control ◽

Helicoverpa Armigera ◽

Nuclear Polyhedrosis Virus ◽

Uv Light ◽

Ultra Violet ◽

Ultra Violet Light ◽

Violet Light ◽

Helicoverpa Armígera ◽

Polyhedrosis Virus ◽

Nuclear Polyhedrosis

This research is about pathogen capacity of the Helicoverpa armigera nuclear Polyhedrosis Virus (HaNPV) after irradiation by ultra violet (UV) light. The HaNPV is the one kind of the virus which attack the insect Helicoverpa armigera-attacker the some species of the crop life tobacco, cotton, potato, tomato. Because of that the HaNPV can be used as the biological control of the pest. Some researcher stated that the pathogen capacity of the HaNPV is decrease if the virus was expose in the ultra violet (UV) light. Because of the fact the virus in not useful as the biological control of the pest in the land corp. This research to test the statement. Laboratory experimental was done to tested the pathogen capacity of the HaNPV after irradiation treatment by the ultra violet light. The intensity of the UV light in this experiment were 28.7 lux, 97.3 lux, and 127.4 lux with the lighting period were 0, 1, 3, 6, 9, 12, and 15. The result of the research stated that the pathogen capacity of the HaNPV was not influenced by ultra violet light. So the virus is still useful as the biological control of the pest in the land crop.

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The micrography of metals in ultra-violet light

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1937.0047 ◽

1937 ◽

Vol 158 (895) ◽

pp. 671-681 ◽

Cited By ~ 3

Keyword(s):

Lamellar Structure ◽

Narrow Band ◽

Wave Length ◽

Numerical Aperture ◽

Ultra Violet ◽

Metallic Structures ◽

Ultra Violet Light ◽

Violet Light ◽

Deep Blue ◽

Oil Immersion

The resolution of metallic structures under the microscope has, during many years, been limited to that given by oil immersion apochromatic objectives of N. A. 1·30 or 1·40. With such objectives fine lamellar structure of the order of 140,000 lines per inch can be resolved. In October, 1933,* one of the authors published micrographs taken with a new monochromatic objective! for metallurgy designed to work in a narrow band of the visual deep blue at a wave-length of approximately 4395 A., and having the large numerical aperture of 1·60. With this objective lamellar structure measuring 180,000 lines per inch has been resolved.

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