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Three species of the family Noctuidae (Lepidoptera) new to China
Hui-Lin HAN,Zhao-Yao DUAN,Zhi-Wei FENG2 한국곤충학회 2008 Entomological Research Vol.38 No.3
Three species of the family Noctuidae –- Phlogophora striatovirens (Moore, 1867), Usbeca kulmburgi (Rebel, 1918) and Feliniopsis leucostigma (Moore, 1867) –- are reported for the first time from China. Photographs of adults and genital characteristics are provided.
Lin, Shu-Feng,Kim, Eun-Soo Elsevier 2018 OPTICS COMMUNICATIONS - Vol.426 No.-
<P><B>Abstract</B></P> <P>A new type of optical in-line holographic three-dimensional (3-D) video display system with omnidirectional viewing zones by using a center-symmetric multi-sideband filtering method is proposed. The frequency spectrum of the complex hologram is center-symmetrically divided into even numbers of multi-sidebands and partitioned into two groups by being alternately selected along the angular direction. One group corresponding to the conjugate image is filtered out in both of the digital-recording and optical-reconstruction processes with their specific filter masks. Then, from the other group, the real image, which can be viewed from almost all directions with a set of angularly-subdivided viewing zones, is reconstructed on the optical 4-<I>f</I> lens system without a conjugate image. Fourier-optical analysis and experiments with 3-D objects in motion confirm the feasibility of the proposed system.</P>
Streptomyces Telomeres Contain a Promoter
Lin, Yuh-ru,Hahn, Mi-Young,Roe, Jung-Hye,Huang, Tzu-Wen,Tsai, Hsiu-Hui,Lin, Yung-Feng,Su, Tsung-Sheng,Chan, Yu-Jiun,Chen, Carton W. American Society for Microbiology 2009 Journal of Bacteriology Vol.191 No.3
<B>ABSTRACT</B><P>Bidirectional replication of the linear chromosomes and plasmids of <I>Streptomyces</I> spp. results in single-strand overhangs at their 3′ ends, which contain extensive complex palindromic sequences. The overhangs are believed to be patched by DNA synthesis primed by a terminal protein that remains covalently bound to the 5′ ends of the telomeres. We discovered that in vitro a conserved 167-bp telomere DNA binds strongly to RNA polymerase holoenzyme and exhibits promoter activities stronger than those of an rRNA operon. In vivo, the telomere DNA exhibited promoter activity in both orientations on a circular plasmid in <I>Streptomyces</I>. The telomere promoter is also active on a linear plasmid during exponential growth. Such promoter activity in a telomere has not hitherto been observed in eukaryotic or prokaryotic replicons. <I>Streptomyces</I> telomere promoters may be involved in priming the terminal Okazaki fragment (during replication) replicative transfer (during conjugation), or expression of downstream genes (including a conserved <I>ttrA</I> helicase-like gene involved in conjugal transfer). Interestingly, the <I>Streptomyces</I> telomeres also function as a promoter in <I>Escherichia coli</I> and as a transcription enhancer in yeast.</P>
Feng, Zhi-Qiang,Yang, Xiao-Li,Ye, Yuan-Feng,Hao, Lin-Yun Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.4
The design, synthesis, and structural characterization of two new palladium complexes based on Schiff base ligands is reported; $[Pd(L1)_2]$ (1) and $[Pd(L2)_2]$ (2), [HL1 = 2-((E)-(2,6-diethylphenylimino)methyl)-4,6-dibromophenol, L2 = (E)-N-benzylidene-2,6-diethylbenzenamine], which are obtained by functionalizing Schiff base ligands with or without electron-withdrawing groups. Both compounds are mononuclear structures. Comparisons are made to the compounds 1 and 2 to analyze and understand the effect of electron-withdrawing groups. Antibacterial activity studies indicate the electron-withdrawing groups on Schiff base ligands enhance antibacterial activity. Catalytic activity, however, is reduced due to the enhanced steric-hindrance of the electron-withdrawing groups. Electronic absorption and emission properties of HL1, L2, 1 and 2 are also reported.
Lin, Feng,Wu, Xiaobao Korea Concrete Institute 2016 International Journal of Concrete Structures and M Vol.10 No.4
Experimental studies were conducted on 36 grouted splices to investigate their mechanical performance under four loading schemes: (1) incremental tensile loading, (2) repeated tensile loading, (3) cyclic loading at high stress, and (4) cyclic loading at large strain. Load-deformation responses of the grouted splices under cyclic loadings were featured with pinching effect and stiffness degradation compared to those responses under tensile loadings. The shape of the hysteresis loops of load-deformation curves was similar to that under incremental tensile loading. For the purpose of structural analysis, stress-strain relationships were presented for grouted splices under various loadings.
New Aconitine-Type C19-Diterpenoid Alkaloids from Aconitum hemsleyanium var. circinacum
Feng Gao,Dong-Lin Chen,Feng-Peng Wang 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.12
Two new aconitine-type C19-diterpenoid alkaloids, hemsleyanines C (1) and D (2), were isolated from the roots of Aconitum hemsleyanium var. circinacum, their structures were determined by the chemical evidence and spectral analyses.
Photocatalytic study of Zinc Oxide with bismuth doping prepared by spray pyrolysis
Lin, Tzu-Yang,Hsu, Yu-Ting,Lan, Wen-How,Huang, Chien-Jung,Chen, Lung-Chien,Huang, Yu-Hsuan,Lin, Jia-Ching,Chang, Kuo-Jen,Lin, Wen-Jen,Huang, Kai-Feng Techno-Press 2015 Advances in nano research Vol.3 No.3
The unintentionally doped and bismuth (Bi) doped zinc oxide (ZnO) films were prepared by spray pyrolysis at $450^{\circ}C$ with zinc acetate and bismuth nitrate precursor. The n-type conduction with concentration $6.13{\times}10^{16}cm^{-3}$ can be observed for the unintentionally doped ZnO. With the increasing of bismuth nitrate concentration in precursor, the p-type conduction can be observed. The p-type concentration $4.44{\times}10^{17}cm^{-3}$ can be achieved for the film with the Bi/Zn atomic ratio 5% in the precursor. The photoluminescence spectroscopy with HeCd laser light source was studied for films with different Bi doping. The photocatalytic activity for the unintentionally doped and Bi-doped ZnO films was studied through the photodegradation of Congo red under UV light illumination. The effects of different Bi contents on photocatalytic activity are studied and discussed. Results show that appropriate Bi doping in ZnO can increase photocatalytic activity.
Feng Lin,Hongzhi Li 한국원자력학회 2017 Nuclear Engineering and Technology Vol.49 No.5
Nuclear power plants under expansion and under construction in China are mostly located in coastal areas, which means they are at risk of suffering strong earthquakes and subsequent tsunamis. This paper presents a safety analysis for a new reinforced concrete containment vessel in such events. A finite element method-based model was built, verified, and first used to understand the seismic performance of the containment vessel under earthquakes with increased intensities. Then, the model was used to assess the safety performance of the containment vessel subject to an earthquake with peak ground acceleration (PGA) of 0.56g and subsequent tsunamis with increased inundation depths, similar to the 2011 Great East earthquake and tsunami in Japan. Results indicated that the containment vessel reached Limit State I (concrete cracking) and Limit State II (concrete crushing) when the PGAs were in a range of 0.8-1.1g and 1.2-1.7g, respectively. The containment vessel reached Limit State I with a tsunami inundation depth of 10 m after suffering an earthquake with a PGA of 0.56g. A site-specific hazard assessment was conducted to consider the likelihood of tsunami sources.
Lin Feng-Sheng,Shih Po-Yuan,Sung Chao-Hsien,Chou Wei-Han,Wu Chun-Yu 대한마취통증의학회 2024 Korean Journal of Anesthesiology Vol.77 No.1
Background: The bispectral index (BIS) may be unreliable to gauge anesthetic depth when dexmedetomidine is administered. By comparison, the electroencephalogram (EEG) spectrogram enables the visualization of the brain response during anesthesia and may prevent unnecessary anesthetic consumption. Methods: This retrospective study included 140 adult patients undergoing elective craniotomy who received total intravenous anesthesia using a combination of propofol and dexmedetomidine infusions. Patients were equally matched to the spectrogram group (maintaining the robust EEG alpha power during surgery) or the index group (maintaining the BIS score between 40 and 60 during surgery) based on the propensity score of age and surgical type. The primary outcome was the propofol dose. Secondary outcome was the postoperative neurological profile.Results: Patients in the spectrogram group received significantly less propofol (1585 ± 581 vs. 2314 ± 810 mg, P < 0.001). Fewer patients in the spectrogram group exhibited delayed emergence (1.4% vs. 11.4%, P = 0.033). The postoperative delirium profile was similar between the groups (profile P = 0.227). Patients in the spectrogram group exhibited better in-hospital Barthel’s index scores changes (admission state: 83.6 ± 27.6 vs. 91.6 ± 17.1; discharge state: 86.4 ± 24.3 vs. 85.1 ± 21.5; group–time interaction P = 0.008). However, the incidence of postoperative neurological complications was similar between the groups.Conclusions: EEG spectrogram–guided anesthesia prevents unnecessary anesthetic consumption during elective craniotomy. This may also prevent delayed emergence and improve postoperative Barthel index scores.