2017년 한해 동안 9개 공항만에서 중국 등 32개국, 120개 품목 8,660건을 조사한 결과, 523건에서 해충 검출이 있었다. 반입빈도가 높은 품목은 사과, 망고, 감귤, 배, 복숭아, 바나나, 오렌지, 오이, 고추. 호두(미탈각), 자두, 드래곤프릇, 포멜로, 토마토, 풋콩, 망고스틴, 대추 등의 순이었으며, 중국, 베트남, 일본, 필리핀, 대만, 태국 등의 나라에서 반입건수가 많았다. 해충 검출 빈도가 높은 품목은 망고스틴, 망고, 사과, 슈가애플, 람부탄, 고추, 자두, 구아바 등이며, 해충 검출 빈도가 높은 국가는 중국, 베트남, 태국 등이었다. 검출 해충류 중 금지해충으로 오리엔탈과실파리류(Bactrocera dorsalis sp. complex) 52건, 오이과실파리(Bactrocera cucurbitae) 1건, Bactrocera latifrons 2건이 있었으며, 과실파리류 32건이 동정중이며, 코드린나방(Cydia pomonella)이 1건 검출되었다.

We have estimated the fractal dimension of the molecular clouds associated with the H ΙΙ region Sh 156 in the Outer Galaxy. We selected the 12CO cube data from the FCRAO CO Survey of the Outer Galaxy. Using a developed code within IRAF, we identified slice-clouds (2-dimensional clouds in velocity-channel maps) with two threshold temperatures to estimate the fractal dimension. With the threshold temperatures of 1.8 K, and 3 K, we identified 317 slice-clouds and 217 slice-clouds, respectively. There seems to be a turn-over location in fractional dimension slope around NP (area; number of pixel) = 40. The fractal dimensions was estimated to be D = 1.5 ∼ 1.53 for NP ≥ 40, where P ∝ AD/2 (P is perimeter and A is area), which is slightly larger than other results. The sampling rate (spatial resolution) of observed data must be an important parameter when estimating fractal dimension. Fractal dimension is apparently invariant when varying the threshold temperatures applied to slice-clouds identification.

Infrared color-color diagram of 10 giant molecular clouds are examined to explore the dust property from the COBE Diffuse Infrared Background Experiment of the 100, 140, and 240μm emission. Four of them, Taurus, Mon OB1, Gem OB1, and Chameleon, show the anti-correlation in R100/140−R140/240 plot and the horizontal distribution in R100/240−R140/240 plot, which disagree with those of theoretical calculation. These could be explained by the depletion of 100μm and the excess of 140μm emission, though no existing dust model could support them. Mean color temperature of the anti-correlation region appears to be lower than that of the linear region, whose temperatures are 15.3, 17.0 K, respectively. And the linear region shows large dispersion in the plot of intensity relation. Both imply that a star formation would be more active, but not homogeneous, in the linear region compared to the anti-correlation region.

The DE405 ephemeride is introduced as TRAO solar ephemeris system to support the apparent coordinates of planets after 2000. The time delay between planets and observer has to be regarded to get the apparent position of planet. Some fast algorithms about time delay are suggested to reduce the computing time. The CSI method is applied to run these algorithms on any O/S including both real-time and run-time machine.

The molecular cloud associated with the H II region S301 has been mapped in the J = 1-0 transitions of 12CO and 13CO using the 13.7 m radio telescope of Taeduk Radio Astronomy Observatory. The cloud is elongated along the north-south direction with two strong emission components facing the H II region. Its total mass is 8.7 × 10 3 M⊙. We find a velocity gradient of the molecular gas near the interface with the optical H II region, which may be a signature of interaction between the molecular cloud and the H II region. Spectra of CO, CS, and HCO+ exhibit line splitting even in the densest part of the cloud and suggests the clumpy structure. The radio continuum maps show that the ionzed gas is distributed with some asymmetry and the eastern part of the H II region is obscured by the molecular cloud. We propose that the S301 H II region is at the late stage of the champagne phase, but the second generation of stars has not yet been formed in the postshock layer.