Polymers of Higher Alkyl (Meth)acrylates: The Effects of Structure on Dispersion Properties in Petroleum Oil I-20A

The analysis of geological and geophysical materials in order to study the peculiarities of the geological structure of the Vikulov Formation within the Vodorazdel license area was carried out. The presented factual material makes it possible to characterize the geological structure of the investigated area more informatively and for interpreting of seismic materials. The analysis of geological information (GIS and test results) confirms the approved water–oil contact (WOC) level in the investigated section of the deposit, which makes it possible to recalculate its reserves.

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Optical data signals in fiber optic communication links with fading

Information and Control Systems ◽

10.31799/1684-8853-2019-3-94-104 ◽

2019 ◽

pp. 94-104

Author(s):

I. Juwiler ◽

I. Bronfman ◽

N. Blaunstein

Keyword(s):

Spectral Efficiency ◽

Fiber Optic ◽

Fiber Optic Cable ◽

Optical Signals ◽

Dispersion Properties ◽

Optical Cable ◽

Time Dispersion ◽

Communication Links ◽

Fiber Optic Communication ◽

Optic Communication

Introduction: This article is based on the recent research work in the field of two subjects: signal data parameters in fiber optic communication links, and dispersive properties of optical signals caused by non-homogeneous material phenomena and multimode propagation of optical signals in such kinds of wired links.Purpose: Studying multimode dispersion by analyzing the propagation of guiding optical waves along a fiber optic cable with various refractive index profiles of the inner optical cable (core) relative to the outer cladding, as well as dispersion properties of a fiber optic cable due to inhomogeneous nature of the cladding along the cable, for two types of signal code sequences transmitted via the cable: return-to-zero and non-return-to-zero ones.Methods: Dispersion properties of multimode propagation inside a fiber optic cable are analyzed with an advanced 3D model of optical wave propagation in a given guiding structure. The effects of multimodal dispersion and material dispersion causing the optical signal delay spread along the cable were investigated analytically and numerically.Results: Time dispersion properties were obtained and graphically illustrated for two kinds of fiber optic structures with different refractive index profiles. The dispersion was caused by multimode (e.g. multi-ray) propagation and by the inhomogeneous nature of the material along the cable. Their effect on the capacity and spectral efficiency of a data signal stream passing through such a guiding optical structure is illustrated for arbitrary refractive indices of the inner (core) and outer (cladding) elements of the optical cable. A new methodology is introduced for finding and evaluating the effects of time dispersion of optical signals propagating in fiber optic structures of various kinds. An algorithm is proposed for estimating the spectral efficiency loss measured in bits per second per Hertz per each kilometer along the cable, for arbitrary presentation of the code signals in the data stream, non-return-to zero or return-to-zero ones. All practical tests are illustrated by MATLAB utility.

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Third-order Nonlinear Dispersion Properties of Surface Plasmon Resonance in Gold Nanoparticles

Journal of Nano- and Electronic Physics ◽

10.21272/jnep.12(3).03031 ◽

2020 ◽

Vol 12 (3) ◽

pp. 03031-1-03031-6

Author(s):

L. Poperenko ◽

◽

S. Rozouvan ◽

V. Staschuk ◽

◽

...

Keyword(s):

Gold Nanoparticles ◽

Surface Plasmon Resonance ◽

Surface Plasmon ◽

Plasmon Resonance ◽

Nonlinear Dispersion ◽

Third Order ◽

Dispersion Properties

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Soybean Oil Used as an Alternative Pesticide on Nursery Stock

HortScience ◽

10.21273/hortsci.33.3.485d ◽

1998 ◽

Vol 33 (3) ◽

pp. 485d-485

Author(s):

A.L. Lancaster ◽

D.E. Deyton ◽

C.E. Sams ◽

C.D. Pless ◽

D.C. Fare ◽

...

Keyword(s):

Soybean Oil ◽

Blue Color ◽

Water Control ◽

White Pine ◽

Blue Star ◽

Red Cedar ◽

Japanese Garden ◽

Nursery Stock ◽

Fine Spray ◽

Petroleum Oil

Research was conducted to determine if soybean oil sprays may substitute for petroleum oil for control of insects on nursery crops. Dormant field-grown `Globe' arborvitae shrubs infested with Fletcher scale were sprayed on 9 Mar. 1997 with 0%, 2%, 3%, or 4% soybean oil. One hundred scales per plant were evaluated on 4 Apr. 1997. Spraying 2% to 4% soybean oil on dormant arborvitae caused ≥97% mortality of Fletcher scale compared to only 7% mortality on untreated plants. of white pine, viburnum, `Anthony Waterer' spirea, `Green Beauty' boxwood, western red cedar, `Blue Star' juniper, `Blue Pacific' juniper, `Japanese Garden' juniper, and arborvitae plants in trade gallon pots and `Densiformus' yew and dwarf `Alberta' spruce in trade quart pots were sprayed with 0% (water control), 1%, or 2% soybean oil (emulsified with Latron B-1956) or 2% SunSpray Ultra-Fine Spray oil on 26 Aug. 1997 for phytotoxicity evaluation. No phytotoxicity occurred on western cedar, spirea, boxwood, yew, arborvitae, or viburnum. Spraying Sunspray or soybean oil caused initial loss of blue color on blue junipers and white pine. Spraying 1 or 2% soybean oil or 2% SunSpray caused phytotoxicity to `Blue Star' juniper. The `Blue Pacific' juniper, `Japanese Garden' juniper, and Alberta spruce were slightly damaged by 2% but not by 1% soybean oil.

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