• Membrane and Water Treatment
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• v.13 no.6
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• pp.259-290
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• 2022

Carbon nanotubes (CNTs), due to their excellent physical, chemical and mechanical properties and their ability to prepare new membranes with attractive properties, have found applications in water and wastewater technology. CNT functionalization, which involves the introduction of different types of functional groups into pure CNTs, improves the capabilities of CNT membranes for water and wastewater treatment. It turns out that CNT-based membranes have many advantages, including enhanced water permeability, high selectivity and anti-fouling properties. However, their full-scale application is still limited by their high cost. With their tremendous separation efficiency, low biofouling potential and ultra-high water flux, CNT membranes have the potential to be a leading technology in water treatment in the future, especially in desalination.

• Journal of Ginseng Research
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• v.46 no.1
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• pp.1-10
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• 2022

Ginseng has been well-known as a medicinal plant for thousands of years. Bacterial endophytes ubiquitously colonize the inside tissues of ginseng without any disease symptoms. The identification of bacterial endophytes is conducted through either the internal transcribed spacer region combined with ribosomal sequences or metagenomics. Bacterial endophyte communities differ in their diversity and composition profile, depending on the geographical location, cultivation condition, and tissue, age, and species of ginseng. Bacterial endophytes have a significant effect on the growth of ginseng through indole-3-acetic acid (IAA) and siderophore production, phosphate solubilization, and nitrogen fixation. Moreover, bacterial endophytes can protect ginseng by acting as biocontrol agents. Interestingly, bacterial endophytes isolated from Panax species have the potential to produce ginsenosides and bioactive metabolites, which can be used in the production of food and medicine. The ability of bacterial endophytes to transform major ginsenosides into minor ginsenosides using β-glucosidase is gaining increasing attention as a promising biotechnology. Recently, metabolic engineering has accelerated the possibilities for potential applications of bacterial endophytes in producing beneficial secondary metabolites.

• International Journal of Industrial Entomology and Biomaterials
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• v.48 no.1
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• pp.1-12
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• 2024

Silk sericin, a natural protein from silkworm cocoons, is emerging as a multifunctional biomaterial in biomedicine, particularly in tissue engineering and wound healing. Recent studies have highlighted its biocompatibility, biodegradability, and potential for chemical modification, which allows it to be incorporated into various scaffold architectures. This review article synthesizes current research, including the development of sericin-based hydrogel scaffolds for tissue engineering and sericin's role in enhancing wound healing. Key findings demonstrate sericin's ability to refine scaffold porosity and mechanical strength, expedite tissue healing, and reduce bacterial load in wounds. The integration of sericin into novel bioactive dressings and its use in peripheral nerve injury repair are also discussed, showcasing its adaptability and efficacy. The convergence of these studies illustrates the broad applications of sericin, from scaffold design to clinical interventions, making it a promising material in regenerative medicine and tissue engineering, with the potential to improve patient outcomes significantly.

• Science of Emotion and Sensibility
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• v.23 no.2
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• pp.35-50
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• 2020

This study aimed to investigate the changes of emotional perception biases according to the level of social phobia and the relationship with visuospatial attention allocation ability. This study used the Korean self-report assessment test (Korean version of social avoidance and distress, K-SAD) to measure the level of social phobia. Moreover, the emotional perception and useful field of view (UFOV) tasks were employed for measuring emotional perception biases and visuospatial attention allocation ability, respectively. A total of 118 participants participated in this experiment, and only 107 (males: 94, females: 13) data were analyzed due to the exclusion of response errors and other statistical problems. The average age of the participants used in the analysis was 21 years (SD: 3.64), and those participants were divided into three groups according to the K-SAD scores. Consequently, all experimental groups showed negative emotional perception biases in the emotional perception task, but the magnitudes of the biases of each group were not significantly different. Furthermore, the positive emotional perception biases were higher at higher levels of social phobia, which could be related to the tendency of interpreting positive stimuli negatively. In the UFOV task, the higher the level of social phobia, the lower the visuospatial attention allocation ability. These results suggest that the deterioration of visuospatial attention allocation ability potentially contributes to the increase of positive emotional perception biases by being difficult to perceive external stimuli. Thus, this paper discusses the potential contribution of visuospatial attention allocation ability to the increased perceptual biases of positive emotions as the level of social phobia increases.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.6
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• pp.99-109
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• 2017

University learning for innovation places great importance on maximizing the creation of new opportunities. In other words, universities are carrying out a new meaning that entrepreneurship education should enable students to discover potential opportunities and play an important role in the development of new society and industry. However, current entrepreneurship education programs are being developed and are being developed from diverse perspectives on rapidly changing environments. However, there is a growing awareness of the necessity of developing more professional and systematic entrepreneurship education programs, and it is argued that the emphasis on necessity is not enough have. This study empirically analyzed the cognitive abilities that influence innovative behavior to create and realize innovative ideas and the usefulness of team-based learning that influences these factors. The results of empirical research showed that self-directed learning ability and problem solving ability had a positive effect on innovation behavior and problem solving ability had a positive effect on innovation behavior as a part of self-directed learning ability. Team-based learning in entrepreneurship education has been shown to be beneficial as a moderating effect on the relationship between problem-solving ability and self-directed learning ability and innovation behavior. In the case of four factors of team-based learning, Respectively. This study suggests the effectiveness and application of team-based learning method in entrepreneurship education.

• Proceedings of the IEEK Conference
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• 2002.07a
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• pp.345-348
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• 2002

A complementary VHF CMOS active inductor is described. The proposed circuit employs 'p-type' and 'n-type' active inductor to obtain enlarged signal handling ability. Under the same inductance, Q value, and power consumption, the proposed circuit shows more than 12-㏈ improvement in dynamic range while maintaining high-frequency operation. Further enhancement is obtained by using a fully differential floating inductor structure. A 1-㎓ 4$\^$th/-order coupled-resonator filter is designed to demonstrate the potential of the proposed active inductor.

• Proceedings of the PSK Conference
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• 2002.10a
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• pp.98-114
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• 2002

The completion of the draft sequence of the human genome has provided us with a partial list of known and putative human genes, the total number of which is estimated between 30, 000 and 45, 000 (1, 2). These genes provide many potential targets for drugs, some of which may be useful in stopping the growth of cancers. The development of gene-targeting anticancer drugs could be greatly facilitated by the ability to narrow down the list of human genes to those that are necessary for the growth of tumor cells. (omitted)

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.157.6-157
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• 2001

We estimated various neuron functions to construct of engineering neurons, which are the combination of sigmoid, linear, sine, quadric, double/single bended, soft max/minimum functions. These combinations are estimated by the property on the potential surface between the learning points, calculation speed, and learning convergence; because the surface depends on the inference ability of a neuron system; and speed and convergence are depend on the efficiency on the points of engineering applications. After the evaluating discussions, we can select more appropriate combination than original sigmoid function´s, which is single bended function and linear one. The combination ...

• Proceedings of the Korean Society of Applied Pharmacology
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• 2003.11a
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• pp.118-118
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• 2003

The use of PPARν (peroxisome proliferator activated receptor ν) activators in the treatment of type 2 diabetes is well established due to their ability to lower blood glucose and insulin levels and omprove insulin sensitivity. Thiazolidinedione analog is one of the potential antidiabetic drug that binds and activates PPARν selectively. In an effort to develop novel and effective antidiabetic thiazolidindione analogs, synthesis of tetrahydroquinoline and para-substituted benzene-linked thiazolidinedione analogs were carried out via coupling reaction of the hydrophobic segments with hydroxybenzylthiazolidinedione.

• 제어로봇시스템학회:학술대회논문집
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• 1992.10a
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• pp.224-229
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• 1992

We investigate a neural network as a dynamic system controller when system characteristics are abruptly changing. The shape of sigmoid functions are determined by autotuing method for the optimum sigmoid function of the neural networks. By using information stored in the identifying network a novel algorithm that can adapt the control action of the controller has been developed. Robustness can be seen from its ability to adjust large variations of parameters. The potential of the proposed method is demonstrated by simulations.