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Yi-Chang Liao,Man-Miao Yang 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.2
The mulberry psyllid Anomoneura mori Schwarz is reported for the first time from Taiwan. This species is associated with the mulberry tree and is a pest of sericulture. Adults and larvae are described and illustrated for identification. The topic of invasive species is further discussed.
Shin, Jae Man,Lee, Young Jun,Kim, Mingoo,Ku, Kang Hee,Lee, Junhyuk,Kim, YongJoo,Yun, Hongseok,Liao, Kin,Hawker, Craig J.,Kim, Bumjoon J. American Chemical Society 2019 Chemistry of materials Vol.31 No.3
<P>Control of the shape, size, internal structure, and uniformity of block copolymer (BCP) particles is crucial for determining their utility and functionality in practical applications. Here, we demonstrate a particle restructuring by solvent engineering (PRSE) strategy that combines membrane emulsification and solvent annealing processes to produce monodisperse BCP particles with controlled size, shape, and internal structure. A major advantage of the PRSE approach is the general applicability to different families of functional BCPs, including polystyrene-<I>block</I>-poly(1,4-butadiene) (PS-<I>b</I>-PB), polystyrene-<I>block</I>-poly(dimethylsiloxane) (PS-<I>b</I>-PDMS), and polystyrene-<I>block</I>-poly(4-vinylpyridine) (PS-<I>b</I>-P4VP). PRSE starts with the production of monodisperse BCP spheres in a wide range of particle sizes (from hundreds of nanometers to several tens of microns) using membrane emulsification, followed by successful transformation to shape-anisotropic BCP particles by solvent annealing under neutral wetting conditions. Particle size monodispersity was maintained during the PRSE process with shape transformations from sphere to ellipsoids (i.e., oblate and prolate). The approach was effective in controlling the aspect ratio (AR) of both prolate and oblate ellipsoids over wide ranges. These ARs were well-supported by free energy calculations based on a theoretical model describing particle elongation. Further investigation of the shape-transformation kinetics during the PRSE process revealed that the morphology transformation was driven by reorientation of BCP microdomains, with kinetics being strongly associated with the overall molecular weight of the BCP as well as the annealing time.</P> [FIG OMISSION]</BR>
Huang Xianbin,Hou Song,Liao Man,Zhu Zhiming 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.4
This paper investigates the Minjiang River Bridge No. 3 in Dujiangyan based on actual bridge tests and theoretical methods ofanalysis; here, we analyze the bearing capacity and the strengthening of the bridge. The detailed reinforcement measures for the bridgepile included the following actions: taking pile-patching measures on both sides of the severely scoured pile, adding bearing platforms,and adopting concrete-filled steel tube on the part of the pile leakage that lies above the current scour line. The bearing capacityevaluation of the bridge was performed before the reinforcement under strong earthquake and current scour conditions. Afterreinforcement, a bearing capacity evaluation for the bridge was performed under strong earthquake and current scour conditions usingthe load test for bridge piles. The analysis indicates that under current scour conditions, the maximum bending moments at the tops ofpiles 15-1, 15-3 and 16-3 are -4,824.5 kN.m, 5,206.9 kN.m, and 5,229.9 kN.m, respectively. These values are greater than the yieldbending moment 4,787.7 kN.m obtained by the M-ϕ curve. Thus, the pile foundation will incur bending failure. The bearing capacity ofthe bridge after reinforcement can meet the design requirements and tends to be stable under the action of a strong earthquake. Throughstatic load tests using vehicles, the maximum strain effect coefficient was 0.62, which meets the specific requirements for calibrationcoefficients (i.e., ξ ≤ 1.0) . The maximum pier settlement was 0.01 mm, and the settlement tended to stabilize during the loading process. After unloading, the settlement nearly completely recovered, and the bridge foundation was stable; thus, the strengthening scheme isfeasible. These results provide an important reference for bridge reinforcement in earthquake-prone areas and river erosion areas.
Li Chengcheng,Peng Meng,Liao Man,Guo Shuangshuang,Hou Yongqing,Ding Binying,Wu Tao,Yi Dan 아세아·태평양축산학회 2020 Animal Bioscience Vol.33 No.9
Objective: Cold stress induces oxidative damage and impairs energy status of broilers. N-acetylcysteine (NAC) exhibits antioxidant properties and modulates energy metabolism of animals. This study was conducted to investigate the effects of NAC on energy status and antioxidant capacity of heart and liver in the cold-stressed broilers. Methods: The experiment consisted of 4 treatments in a 2×2 factorial arrangement with two diets (basal diet or plus 0.1% NAC) and two ambient temperatures (thermoneutral [conventional ambient temperature] or cold stress [10°C±1°C during days 15 to 42]). Results: No ascites were seen in cold-stressed broilers. NAC did not attenuate the impaired growth performance of stressed birds. However, NAC decreased plasma asparagine but increased aspartate levels in cold-stressed birds (p<0.05). NAC reduced hepatic adenosine triphosphate (ATP) but elevated adenosine diphosphate contents in unstressed birds (p< 0.05). The hepatic ratio of adenosine monophosphate (AMP) to ATP was increased in birds fed NAC (p<0.05). NAC decreased plasma malondialdehyde (MDA) level and cardiac total superoxide dismutase (T-SOD) activity in unstressed birds, but increased hepatic activities of T-SOD, catalase and glutathione peroxidase in stressed birds (p<0.05). NAC down-regulated hepatic AMP-activated protein kinase but up-regulated cardiac heme-oxigenase mRNA expression in stressed birds, and decreased expression of hepatic peroxisome proliferator-activated receptor coactivator-1α as well as hypoxia-inducible factor-1α in liver and heart of birds. Conclusion: Dietary NAC did not affect energy status but enhanced the hepatic antioxidant capacity by increasing the activities of antioxidant enzymes in cold-stressed broilers.
Wenfeng Zhou,Shaoming Liao,Yanqing Men 대한토목학회 2022 KSCE Journal of Civil Engineering Vol.26 No.3
Long-term leakage at the tunnel joint induces significant tunnel deformations, which in turn aggravates the joint leakage. A finite element model (FEM) model with a defined leakage element incorporated in a segmental joint is developed to investigate the evolution of joint leakage and deformation. Subsequently, a series of parametric analyses are conducted to reveal the time-dependent law of joint opening and leakage variation with leakage location, water head, and waterproof capacity based on Qiongzhou Strait tunnel. The results show that the interaction between joint opening and leakage undergoes a dynamic evolution process during the long-term operation of the tunnel. It is found that the joint opening on the extrados is much more critical and hazardous than that on the intrados, and the synthetic action of water head and waterproof capacity can remarkably delay the development of joint opening and leakage. For Qiongzhou Strait tunnel, the joint opening on the extrados occurs after at least 30 years of initial leakage at the springline and increases to 1.28 mm, and the leakage rate increases from 0.909 × 10−4 m3/d to 1.508 × 10−4 m3/d after 120 years. It is suggested that the waterproof capacity and initial leakages near the springline should be strictly controlled to ensure the long-term safety of the tunnel.