The Effects of Gain-Loss Framing and Message Sidedness on GMO Acceptance: The Mediating Role of Psychological Reactance

Han Lin,김용환 한국언론학회 2022 Asian Communication Research Vol.19 No.2

Misinformation about GMOs (genetically modified organisms) circulated on social media has negatively impacted people’s beliefs and behaviors. This study explores whether and how the information element of online news can improve public attitudes toward controversial issues such as GMOs. For this purpose, a 2 (gain vs. loss frames) x 2 (one-sided vs. two-sided messages) experimental design is adopted. The results of ANCOVA show that those exposed to two-sided messages showed greater levels of GMO acceptance compared with those exposed to one-sided messages. A significant interaction effect on GMO acceptance was also found, demonstrating that a two-sided message focusing on the gain frame showed the highest levels of GMO acceptance. In addition, the effects of message sidedness and gain-loss frames on GMO attitudes are mediated by psychological reactance. Specifically, two-sided messages, compared to one-sided messages, led to lower GMO risk perceptions and higher GMO acceptance by reducing psychological reactance. Furthermore, compared to loss-framed messages, gain-framed messages decreased GMO risk perceptions and increased GMO acceptance by lowering participants’ psychological reactance. These results can provide a deeper understanding of the mechanism by which news messages might influence individuals’ acceptance of scientific information through activating psychological reactance.

Seamless Transition Strategy for Wide Speed-Range Sensorless IPMSM Drives with a Virtual Q-axis Inductance

Hanlin Shen,Jinbang Xu,Baiqiang Yu,Qipeng Tang,Bao Chen,Chun Lou,Yu Qiao 전력전자학회 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.5

Hybrid rotor position estimation methods that integrate a fundamental model and high frequency (HF) signal injection are widely used for the wide speed-range sensorless control of interior permanent-magnet synchronous machines (IPMSMs). However, the direct transition of two different schemes may lead to system fluctuations or system instability since two estimated rotor positions based on two different schemes are always unequal due to the effects of parameter variations, system delays and inverter nonlinearities. In order to avoid these problems, a seamless transition strategy to define and construct a virtual q-axis inductance is proposed in this paper. With the proposed seamless transition strategy, an estimated rotor position based on a fundamental model is forced to track that based on HF signal injection before the transition by adjusting the constructed virtual q-axis inductance. Meanwhile, considering that the virtual q-axis inductance changes with rotor position estimation errors, a new observer with a two-phase phase-locked loop (TP-PLL) is developed to accurately obtain the virtual q-axis inductance online. Furthermore, IPMSM sensorless control with maximum torque per ampere (MTPA) operations can be tracked automatically by selecting the proper virtual q-axis inductance. Finally, experimental results obtained from an IPMSM demonstrate the feasibility of the proposed seamless transition strategy.

Effects of Intercropping on Soil Nutrients and Enzyme Activities in Continuous Taro Cropping Fields

Hanlin Zhang,Xianqing Zheng,Yifei Wang,Ke Song,Shuangxi Li,Juanqin Zhang,Qiyong He,Dawei Yuan,Weiguang Lv 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Responses of Soil Bacterial and Fungal Communities to Organic and Conventional Farming Systems in East China

( Hanlin Zhang ),( Xianqing Zheng ),( Naling Bai ),( Shuangxi Li ),( Juanqin Zhang ),( Weiguang Lv ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 Journal of microbiology and biotechnology Vol.29 No.3

Organic farming is considered an effective form of sustainable agricultural management. However, understanding of soil microbial diversity and composition under long-term organic and conventional farming is still limited and controversial. In this study, the Illumina MiSeq platform was applied to investigate the responses of soil bacterial and fungal diversity and compositions to organic farming (OF) and improved conventional farming (CF, applied straw retention) in the rice-wheat rotation system. The results highlighted that the alpha diversity of microbial communities did not differ significantly, except for higher bacterial diversity under OF. However, there were significant differences in the compositions of the soil bacterial and fungal communities between organic and conventional farming. Under our experimental conditions, through the ecological functional analysis of significant different or unique bacterial and fungal taxonomic members at the phyla and genus level, OF enhanced nitrogen, sulfur, phosphorus and carbon dynamic cycling in soil with the presence of Nodosilinea, Nitrospira, LCP-6, HB118, Lyngbya, GOUTA19, Mesorhizobium, Sandaracinobacter, Syntrophobacter and Sphingosinicella, and has the potential to strengthen soil metabolic ability with Novosphingobium. On the other hand, CF increased the intensity of nitrogen cycling with Ardenscatena, KD1-23, Iamia, Nitrosovibrio and Devosia, but enriched several pathogen fungal members, including Coniochaeta, Corallomycetella, Cyclaneusma, Cystostereum, Fistulina, Curvularia and Dissoconium.

A Robust Dynamic Decoupling Control Scheme for PMSM Current Loops Based on Improved Sliding Mode Observer

Hanlin Shen,Xin Luo,Guilin Liang,Anwen Shen 전력전자학회 2018 JOURNAL OF POWER ELECTRONICS Vol.18 No.6

A complete current loop decoupling control strategy based on a sliding mode observer (SMO) is proposed to eliminate the influence of current dynamic coupling and back electromotive force (EMF) in the vector control of permanent magnet synchronous motors. With this strategy, current dynamic decoupling and back EMF compensation can be simultaneously achieved. Unlike conventional methods, the proposed strategy can avoid the disturbances caused by the parametric variations of motor systems and maintain the advantages of proportional integral (PI) controllers, which are robust and easy to operate. An improved SMO, which uses a special PI regulator other than a linear saturation function as the equivalent control law in the boundary layer of a sliding surface, is proposed to eliminate the estimated errors caused by the quasi-sliding mode and obtain a satisfactory decoupling performance. The stability and parameter robustness of the proposed strategy are also analyzed. Physical experimental results are presented to verify the validity of the method.

Benzothiazole-based fluorescent probe for N2H4

Hanlin Wang,Jiexun Huang,Weidong Huang,Longyuan Yang 대한화학회 2023 Bulletin of the Korean Chemical Society Vol.44 No.1

A fluorescence enhancement probe 2-[2-(1,3-benzothiazol-2-yl)phenyl]-1H- isoin-dole-1,3(2H)-dione (HL1) for N2H4 was synthesized and characterized by using 2-(2-aminophenyl)benzothiazole as a fluorophore, and its spectroscopic properties had been researched. The results exhibited that HL1 was highly selective and sensitive to N2H4, and it had the excellent anti-interference ability and displayed a fast response. The fluorescent intensity of HL1 showed a good linear relationship with the concentration of N2H4 (1.5–12.5 μmolL1), and its detection limit was 0.12 μmol/L. In addition, HL1 was also applied for determin- ing N2H4 levels in real water samples and imaging N2H4 in living HeLa cells.

Fabrication of PAN/Ag/ZnO Microporous Membrane and Examination of Visible Light Photocatalytic Performance

Hanlin Liu,Haihong Gu,Guoqing Li,Ni Li 한국섬유공학회 2021 Fibers and polymers Vol.22 No.2

In the paper, a novel polyacrylonitrile/Ag/ZnO (PAN/Ag/ZnO) microporous membrane was prepared by sequentialelectrospinning, chemical silver plating and hydrothermal reaction. Morphology and structure of PAN/Ag/ZnO membraneand the photocatalytic performance of Rhodamine Bsolution under visible-light irradiation were systematically investigated. It was found that ZnO nanorod and ZnO nanosheet with hexagonal wurtzite structure were prepared in different concentrationof growth solution. The visible light photocatalytic performance test showed that ZnO nanorod had higher photocatalyticefficiency than ZnO nanosheet. After 6 hours of irradiation, the degradation efficiency of the RhB solution of PAN/Ag/ZnOfilm with only 2 mg of ZnO nanorods reached 98 %. After 5 times of repeated experiments, there was no notable decrease inthe performance. The photocatalytic performance of the material is enhanced by chemical silver plating. Compared with theunsilvered samples, the addition of Ag not only made the microporous film grow more ZnO, but also greatly improved thevisible light photocatalytic performance by forming Ag-ZnO metal-semiconductor interface.

Study on the relationship between machining errors and transmission accuracy of planetary roller screw mechanism using analytical calculations and machine-learning model

Wu Hanlin,Wei Peitang,Hu Rui,Liu Huaiju,Du Xuesong,Zhou Pengliang,Zhu Caichao 한국CDE학회 2023 Journal of computational design and engineering Vol.10 No.1

Correlation between machining errors and transmission accuracy of planetary roller screw mechanism (PRSM) plays an important role in tolerance design. In this study, analytical calculations, machine learning, and experimental verification are utilized for exploring the internal correlation between the machining errors and the transmission accuracy of the PRSM. A multi-roller meshing transmission error model is established, which comprehensively considers the eccentric error, nominal diameter error, flank angle error, and cumulative pitch error of the screw, roller, and nut. The importance coefficients of various machining errors on the transmission error are determined using the random forest algorithm. A genetic algorithm-back propagation neural network algorithm-based method is utilized for training the dataset generated via analytical calculations. The results show that the proposed analytical calculation model reflects the alternate meshing characteristics of rollers during the PRSM motion, providing a more accurate prediction of the transmission error than the existing prediction methods. For an actual mean travel deviation, the most significant machining error is the cumulative pitch error of the screw, whereas for the actual bandwidth of useful travel, the most significant machining errors are the eccentric errors of the screw and nut. The proposed prediction formulae for transmission error considering the essential machining errors illustrate reasonable prediction accuracy, with an average error of 10.63% for the actual mean travel deviation and 14.27% for the actual bandwidth of useful travel compared with the experiments, which can effectively support the direct design of PRSM tolerance in engineering practice.

A Robust Dynamic Decoupling Control Scheme for PMSM Current Loops Based on Improved Sliding Mode Observer

Shen, Hanlin,Luo, Xin,Liang, Guilin,Shen, Anwen The Korean Institute of Power Electronics 2018 JOURNAL OF POWER ELECTRONICS Vol.18 No.6

A complete current loop decoupling control strategy based on a sliding mode observer (SMO) is proposed to eliminate the influence of current dynamic coupling and back electromotive force (EMF) in the vector control of permanent magnet synchronous motors. With this strategy, current dynamic decoupling and back EMF compensation can be simultaneously achieved. Unlike conventional methods, the proposed strategy can avoid the disturbances caused by the parametric variations of motor systems and maintain the advantages of proportional integral (PI) controllers, which are robust and easy to operate. An improved SMO, which uses a special PI regulator other than a linear saturation function as the equivalent control law in the boundary layer of a sliding surface, is proposed to eliminate the estimated errors caused by the quasi-sliding mode and obtain a satisfactory decoupling performance. The stability and parameter robustness of the proposed strategy are also analyzed. Physical experimental results are presented to verify the validity of the method.

PBK drives PARP inhibitor resistance through the TRIM37/NFκB axis in ovarian cancer

Ma Hanlin,Qi Gonghua,Han Fang,Peng Jiali,Yuan Cunzhong,Kong Beihua 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-

Resistance to PARP inhibitors (PARPi) remains a therapeutic challenge in ovarian cancer patients. PDZ-binding kinase (PBK) participates in the chemoresistance of many malignancies. However, the role of PBK in PARPi resistance of ovarian cancer is obscure. In the current study, we demonstrated that overexpression of PBK contributed to olaparib resistance in ovarian cancer cells. Knockdown of PBK sensitized olaparib-resistant SKOV3 cells to olaparib. Inhibition of PBK using a specific inhibitor enhanced the therapeutic efficiency of olaparib. Mechanically, PBK directly interacted with TRIM37 to promote its phosphorylation and nuclear translocation. which subsequently activates the NFκB pathway. Additionally, PBK enhanced olaparib resistance of ovarian cancer by regulating the NFκB/TRIM37 axis in vitro and in vivo. In conclusion, PBK confers ovarian cancer resistance to PARPi through activating the TRIM37-mediated NFκB pathway, and targeted inhibition of PBK provided the new therapy to improve PARPi treatment outcomes for ovarian cancer patients.