다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

Vegetation Indices (VIs) obtained from remote sensing based canopies are quite simple and effective algorithms for quantitative and qualitative evaluations of vegetation cover, vigor, and growth dynamics, among other applications These indices have been widely implemented within RS applications using different airborne and satellite platforms with recent advances using Unmanned Aerial Vehicles (UAV) Up to date, there is no unified mathematical expression that defines all VIs due to the complexity of different light spectra combinations, instrumentation, platforms, and resolutions used Therefore, customized algorithms have been developed and tested against a variety of applications according to specific mathematical expressions that combine visible light radiation, mainly green spectra region, from vegetation, and nonvisible spectra to obtain proxy quantifications of the vegetation surface In the real-world applications, optimization VIs are usually tailored to the specific application requirements coupled with appropriate validation tools and methodologies in the ground The present study introduces the spectral characteristics of vegetation and summarizes the development of VIs and the advantages and disadvantages from different indices developed This paper reviews more than 100 VIs, discussing their specific applicability and representativeness according to the vegetation of interest, environment, and implementation precision Predictably, research, and development of VIs, which are based on hyperspectral and UAV platforms, would have a wide applicability in different areas

/pdf/significant-remote-sensing-vegetation-indices-a-review-of-4szax6zlwz.pdf

Significant remote sensing vegetation indices: A review of developments and applications

13. 벼잎선충의 약제처리 방법별 방제 효과

Q-Switching Pulses Generation Using Topology Insulators as Saturable Absorber

A simple humidity sensor is suggested basing on a tapered single-mode fibre coated with a mixed polymer composite hydroxyethyl cellulose/polyvinylidene fluoride. The tapered fibre produced by an etching technique and coated with a humidity-sensitive cladding creates intermodal interference which enables detecting humidity changes. The performance of the sensor is studied for the two fibre diameters, 50 and 87.5 μm. As the relative humidity increases, the interference spectrum shifts towards longer wavelengths. The highest sensitivity, 0.0116 nm/%, is obtained at the smallest tapered-fibre diameter of 50 μm, with the linearity being more than 98.20%.

http://www.ifo.lviv.ua/journal/UJPO_PDF/2014_2/0502_2014.pdf

Humidity sensor based on tapered single mode fiber coated with a hydroxyethyl cellulose/poly-vinylidene fluoride composite

Four-wave mixing in dual wavelength fiber laser utilizing SOA for wavelength conversion

Double-pass L-band erbium-doped fiber amplifier with flat gain and improved noise figure characteristics is demonstrated. It incorporates a short length of forward pumped EDF in front of double pass amplifier to reduce the noise figure. The amplifier has achieved a flat-gain output at about 34.2 dB, which is 14.2 dB higher than that of the single pass system with gain variation less than 1.3 dB at flat gain region from 1568 to 1598 nm. The noise figure varies from 5.0 to 5.8 dB at this region.

Double-pass L-band EDFA with flat-gain and improved noise figure characteristic

We propose and demonstrate the most compact and stable multiwavelength Brillouin Erbium Fibre Laser (MBEFL) by incorporating a 10-km long nonzero dispersion shifted fiber (NZ-DSF) acting as a Brillouin gain medium. This proposed configuration with only a single ring cavity is able to produce odd-order Brillouin Stokes waves appear in the backward direction with the line spacing 0.16nm (~20GHz). Brillouin pump and the even Stokes orders act as a Brillouin pump in the forward direction using a pre-amplified Brillouin power approach in a ring cavity. Up to 12 odd-order Brillouin Stokes lines are observed with the Brillouin pump power of around 8 dBm at injected 980 nm pump power of 125 mW. The anti-Stokes lines are also obtained due to four wave mixing and bidirectional operation.

Sulaiman Wadi Harun

Papers

Q-Switching Pulses Generation Using Topology Insulators as Saturable Absorber

Humidity sensor based on tapered single mode fiber coated with a hydroxyethyl cellulose/poly-vinylidene fluoride composite

Four-wave mixing in dual wavelength fiber laser utilizing SOA for wavelength conversion

Double-pass L-band EDFA with flat-gain and improved noise figure characteristic

Multiwavelength brillouin-erbium fiber laser generation with double-brillouin-frequency spacing in a ring cavity