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- Publications
- Influence
Fumigant toxicity of essential oils from the Myrtaceae family and 1,8-cineole against 3 major stored-grain insects
- B. Lee, P. Annis, Fa’ale Tumaalii, W. Choi
- Biology
- 2004
Abstract Six out of 42 essential oils extracted from species of the family Myrtaceae found in Australia were shown to have potent fumigant toxicity against three major stored-grain insects:… Expand
Fumigant toxicity of essential oils and their constituent compounds towards the rice weevil, Sitophilus oryzae (L.)
- Byung-ho Lee, W. Choi, Sung-Eun Lee, Byeoung-Soo Park
- Biology
- 1 May 2001
Abstract Toxicity of various essential oils and their volatile constituents towards the rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae), was determined. The most potent toxicity was… Expand
Insecticidal and acaricidal activity of pipernonaline and piperoctadecalidine derived from dried fruits of Piper longum L.
- Byeoung-Soo Park, Sung-Eun Lee, W. Choi, Chang-Yoon Jeong, Cheol Song, Kwang-Yun Cho
- Biology
- 1 April 2002
Abstract Toxicities of two piperidine alkaloids, pipernonaline and piperoctadecalidine, isolated from Piper longum L. were determined against five species of arthropod pests. The most potent… Expand
Neighborhood-scale air quality impacts of emissions from motor vehicles and aircraft
- W. Choi, S. Hu, +4 authors S. Paulson
- Environmental Science
- 1 December 2013
Abstract A mobile monitoring platform (MMP) was used to measure real-time air pollutant concentrations in different built environments of Boyle Heights (BH, a lower-income community enclosed by… Expand
Fungicidal activity of pipernonaline, a piperidine alkaloid derived from long pepper, Piper longum L., against phytopathogenic fungi
- Sung-Eun Lee, Byeoung-Soo Park, +5 authors Hoi-Seon Lee
- Biology
- 1 July 2001
Abstract Fungicidal activity of Piper longum L . fruit-derived materials toward six phytopathogenic fungi, Pyricularia oryzae , Rhizoctonia solani , Botrytis cineria , Phytophthora infestans ,… Expand
Prevalence of wide area impacts downwind of freeways under pre-sunrise stable atmospheric conditions
- W. Choi, M. He, +4 authors S. Paulson
- Environmental Science
- 1 December 2012
Abstract In urban areas, a large fraction of the population typically lives within 1.5–2 km of a freeway. In an earlier study, Hu et al. (2009) showed that in the pre-sunrise hours, with stable,… Expand
Factors controlling pollutant plume length downwind of major roadways in nocturnal surface inversions
- W. Choi, A. Winer, S. Paulson
- Environmental Science
- 30 September 2013
Abstract. A fitting method using a semi-empirical Gaussian dispersion model solution was successfully applied to obtain both dispersion coefficients and a particle number emission factor (PNEF)… Expand
Site-controlled VLS growth of planar nanowires: yield and mechanism.
- C. Zhang, Xin Miao, P. Mohseni, W. Choi, X. Li
- Materials Science, Medicine
- Nano letters
- 13 November 2014
The recently emerged selective lateral epitaxy of semiconductor planar nanowires (NWs) via the vapor-liquid-solid (VLS) mechanism has redefined the long-standing symbolic image of VLS NW growth. The… Expand
III-V Junctionless Gate-All-Around Nanowire MOSFETs for High Linearity Low Power Applications
- Y. Song, Chen Zhang, +4 authors X. Li
- Materials Science
- IEEE Electron Device Letters
- 9 January 2014
III-V junctionless gate-all-around (GAA) nanowire MOSFETs (NWFETs) are experimentally demonstrated for the first time. Source/drain resistance and thermal budget are minimized by regrowth using… Expand
Closing the ultrafine particle number concentration budget at road-to-ambient scale: Implications for particle dynamics
- W. Choi, S. E. Paulson
- Chemistry
- 11 April 2016
ABSTRACT Freshly emitted vehicle exhaust particles are diluted quickly as they mix into ambient air, but the contribution of evaporation, coagulation, and/or nucleation of new particles to the number… Expand