Impact of Artificial Intelligence on the Development of Art Projects: Opportunities and Limitations

Zheng, Xiang,Xiong, Jinghao,Cao, Xiaoming,Nazarov, Y.V. International Journal of Computer ScienceNetwork S 2022 International journal of computer science and netw Vol.22 No.9

To date, the use of artificial intelligence has already brought certain results in such areas of art as poetry, painting, and music. The development of AI and its application in the creative process opens up new perspectives, expanding the capabilities of authors and attracting a new audience. The purpose of the article is to analyze the essential, artistic, and technological limitations of AI art. The article discusses the methods of attracting AI to artistic practices, carried out a comparative analysis of the methods of using AI in visual art and in the process of writing music, identified typical features in the creative interaction of the author of a work of art with AI. The basic principles of working with AI have been determined based on the analysis of ways of using AI in visual art and music. The importance of neurobiology mechanisms in the course of working with AI has been determined. The authors conclude that art remains an area in which AI still cannot replace humans, but AI contributes to the further formation of methods for modifying and rethinking the data obtained into innovative art projects.

Pilot’s Cognitive State Recognition using Wavelet Singular Entropy and Gaussian Process Classification via Full Flight Simulation

Zhengxiang Cai,Qi Wu,Shan Fu,Dan Huang 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

Cognitive state of human is vital to the man-machine system. This research proposes a method of wavelet singular entropy and Gaussian process classification to recognize the human cognitive state via physiological data during flight simulation. Experiments are implemented in a 6-degree-of-freedom full flight simulator under an emergency flight scenario. Classification results validate the effectiveness of the proposed method. Further analysis suggests a three-channel physiological signal selection to be optimal for classification as a tradeoff of the accuracy and computational cost.

Error Analysis of Multidimensional Evaluation of Pilot’s Workload Based on Objective Measures

Chan Wei,Liming Wei,Zhengxiang Cai,Yanyu Lu,Qi Wu,Dan Huang,Shan Fu 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

Evaluation of pilot’s workload during flight is a significant consideration for the safety of civil aviation. However, some errors may be brought in the measurement and the recording of objective parameters. Based on a multidimensional workload evaluation, the time delay of cardiac activity and its impacts on workload are analyzed. The results suggest that within a certain limit of error around 10s, varying from individual to individual, workload can keep the main information compared to the original workload. As the error increases, the workload may become unreliable. As a consequence, the time-delay error of cardiac activity should be controlled in a limited scale to ensure the validity and reliability of workload.

Nonlinear response history analysis and collapse mode study of a wind turbine tower subjected to tropical cyclonic winds

Kaoshan Dai,Chao Sheng,Zhi Zhao,Zhengxiang Yi,Alfredo Camara,Girma Bitsuamlak 한국풍공학회 2017 Wind and Structures, An International Journal (WAS Vol.25 No.1

The use of wind energy resources is developing rapidly in recent decades. There is an increasing number of wind farms in high wind-velocity areas such as the Pacific Rim regions. Wind turbine towers are vulnerable to tropical cyclones and tower failures have been reported in an increasing number in these regions. Existing post-disaster failure case studies were mostly performed through forensic investigations and there are few numerical studies that address the collapse mode simulation of wind turbine towers under strong wind loads. In this paper, the wind-induced failure analysis of a conventional 65 m hub high 1.5-MW wind turbine was carried out by means of nonlinear response time-history analyses in a detailed finite element model of the structure. The wind loading was generated based on the wind field parameters adapted from the cyclone boundary layer flow. The analysis results indicate that this particular tower fails due to the formation of a full-section plastic hinge at locations that are consistent with those reported from field investigations, which suggests the validity of the proposed numerical analysis in the assessment of the performance of wind-farms under cyclonic winds. Furthermore, the numerical simulation allows to distinguish different failure stages before the dynamic collapse occurs in the proposed wind turbine tower, opening the door to future research on the control of these intermediate collapse phases.

A Rapid PCR-Based Approach for Molecular Identification of Filamentous Fungi

Yuanyuan Chen,Bernard A. Prior,Guiyang Shi,Zhengxiang Wang 한국미생물학회 2011 The journal of microbiology Vol.49 No.4

In this study, a novel rapid and efficient DNA extraction method based on alkaline lysis, which can deal with a large number of filamentous fungal isolates in the same batch, was established. The filamentous fungal genomic DNA required only 20 min to prepare and can be directly used as a template for PCR amplification. The amplified internal transcribed spacer regions were easy to identify by analysis. The extracted DNA also can be used to amplify other protein-coding genes for fungal identification. This method can be used for rapid systematic identification of filamentous fungal isolates.

Nonlinear response history analysis and collapse mode study of a wind turbine tower subjected to tropical cyclonic winds

Dai, Kaoshan,Sheng, Chao,Zhao, Zhi,Yi, Zhengxiang,Camara, Alfredo,Bitsuamlak, Girma Techno-Press 2017 Wind and Structures, An International Journal (WAS Vol.25 No.1

The use of wind energy resources is developing rapidly in recent decades. There is an increasing number of wind farms in high wind-velocity areas such as the Pacific Rim regions. Wind turbine towers are vulnerable to tropical cyclones and tower failures have been reported in an increasing number in these regions. Existing post-disaster failure case studies were mostly performed through forensic investigations and there are few numerical studies that address the collapse mode simulation of wind turbine towers under strong wind loads. In this paper, the wind-induced failure analysis of a conventional 65 m hub high 1.5-MW wind turbine was carried out by means of nonlinear response time-history analyses in a detailed finite element model of the structure. The wind loading was generated based on the wind field parameters adapted from the cyclone boundary layer flow. The analysis results indicate that this particular tower fails due to the formation of a full-section plastic hinge at locations that are consistent with those reported from field investigations, which suggests the validity of the proposed numerical analysis in the assessment of the performance of wind-farms under cyclonic winds. Furthermore, the numerical simulation allows to distinguish different failure stages before the dynamic collapse occurs in the proposed wind turbine tower, opening the door to future research on the control of these intermediate collapse phases.

Antifungal Effect of Triglycerol Monolaurate Synthesized by Lipozyme 435-Mediated Esterification

Song Zhang,Jian Xiong,Wen-Yong Lou,Zhengxiang Ning,Denghui Zhang,Jiguo Yang 한국미생물·생명공학회 2020 Journal of microbiology and biotechnology Vol.30 No.4

This study was designed to synthesize triglycerol monolaurate (TGML) with Lipozyme 435 as the catalyst, and explore its effects on the growth of Aspergillus parasiticus (A. parasiticus) and Aspergillus flavus (A. flavus) and the secretion of aflatoxin b1. The highest content of TGML (49.76%) was obtained at a molar ratio of triglycerol to lauric acid of 1.08, a reaction temperature of 84.93°C, a reaction time of 6 h and an enzyme dosage of 1.32%. After purification by molecular distillation combined with the washes with ethyl acetate and water, the purity of TGML reached 98.3%. Through characterization by electrospray-ionization mass spectrometry, infrared spectrum and nuclear magnetic resonance, the structure of TGML was identified as a linear triglycerol combined with lauroyl at the end. Finally, the inhibitory effects of TGML on the growths of A. parasiticus and A. flavus and the secretion of aflatoxin b1 were evaluated by measuring the colony diameter, the inhibition rate of mycelial growth and the content of mycotoxin in the media. The results indicated that TGML had a stronger inhibitory effects on colony growth and mycelial development of both toxic molds compared to sodium benzoate and potassium sorbate, and the secretions of toxins from A. parasiticus and A. flavus were completely suppressed when adding TGML at 10 and 5 mM, respectively. Based on the above results, TGML may be used as a substitute for traditional antifungal agents in the food industry.

한국기업의 對베트남 해외직접투자 특징에 관한 연구

왕설매(Xuemei Wang),정진섭(Jin-Sup Jung),왕정상(Zhengxiang Wang) 한국산업경영학회 2012 경영연구 Vol.27 No.2

본 연구의 목적은 한국기업의 對베트남 해외직접투자의 특징을 도출하고, 실증분석을 통해 성공적인 해외투자 진출을 위한 전략적 시사점을 제시하고자 한다. 먼저 기존 연구의 탐색을 통해 對베트남 해외직접투자와 관련하여 투자시기, 투자방식, 투자동기, 투자업종, 투자규모, 입지선택등 주요 특징적 요인들을 찾았다. 그리고 이러한 특징을 중심으로 다음과 같은 세부 결과를 도출하였다. 첫째, 한국의 對베트남 해외직접투자는 진입 시기에 따라 경영성과가 달리 나타났다. 특히 2006년 베트남의 WTO 가입 후, 한국기업의 對베트남 해외직접투자 성과가 높게 나타났다. 둘째, 단독투자가 합자투자보다 그 비율이 높게 나타나고 있는데, 이는 한국기업들이 단독투자가 합작투자보다 성공가능성이 높다고 판단하고 있음을 시사하고 있다. 셋째, 최근 한국의 對베트남 해외직접투자의 동기로서 현지시장 개척을 위한 투자동기가 현지 자원개발이나 저임금활용을 위한 투자보다 부각되고 있다. 이는 이제 베트남이 단순 제조업 공장으로서의 역할뿐 아니라 소비시장으로서 부상하고 있음 을 시사한다. 넷째, 본 연구의 실증분석 결과, 제조업보다 서비스업의 매출신장률이 높게 나타났다. 이는 베트남 진출 시 제조업뿐 아니라 서비스업도 점차 중요하게 고려해야 함을 시사하고 있다. 다섯째, 투자규모에 따른 분석에서는 50명 미만의 소규모 종업원 기업들의 경영성과가 비교적 높게 나타났으나, 투자규모에 따른 그룹별 경영성과의 차이는 나타나지는 않았다. 여섯째, 입지선택 측면에서 입지우위가 세부적인 투자 장소의 결정에 영향을 미쳤다. 예를 들어, 베트남에 투자한 한국기업의 경우, 인프라가 잘 갖추어진 호치민을 하노이보다 더 선호하였으며, 호치민에 투자한 기업들이 더 나은 경영성과를 보였다. The goal of this study is to identify the characteristics of outward foreign direct investment (FDI) by Korean firms in Vietnam: timing, method, motivation, industry, size, and location. Meaningful results were obtained as follows. First, Korean firms' performance with regard to outward FDI in Vietnam differed according to the timing of their entry into Vietnam. In particular, their performance increased after 2006, following Vietnam's adhesion to the World Trade Organization (WTO). Second, wholly-owned subsidiaries (WOS) and joint ventures (JV) show few significant differences statistically speaking. However, recently, WOSs' performance has increased more rapidly than that of JVs. Third, Korean firms' motivation for outward FDI in Vietnam has switched from the resource-seeking/efficiency-seeking paradigm to the market-seeking paradigm. Fourth, the performance of the service industry was found to be higher than that of the manufacturing industry, so the outward FDI of the Korean service industry should be considered seriously. Fifth, when the size of a firm is based on the number of employees, the performance of small and medium-sized firms is a little better than that of large size firms. However, when considering the size of a firm according to the amount of investment, there are no differences between the various groups. Finally, certain locational advantages have affected the performance of outward FDI in Vietnam. Therefore, Ho Chi Minh, which is well equipped in terms of infrastructure, was preferred to Hanoi by Korean firms.

In situ Carbon Supplementation in Large-scale Cultivations of Spirulina platensis in Open Raceway Pond

Yilu Bao,Ming Liu,Xia Wu,Wei Cong,Zhengxiang Ning 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.1

The objective of this study was to estimate the CO2 absorptivity provided by an in situ carbon supply system using a photosynthetic culture of the cyanobacterium Spirulina platensis in an open raceway pond. The effects of initial total carbon concentrations (ranging from 0 to 0.1 mol/L), suspension depths (ranging from 5 to 20cm) and pH values (ranging from 8.9 to 11.0) on the CO2absorptivity were studied. The results indicated that CO2absorptivity was positively correlated with pH value,negatively correlated with total carbon concentration, and only negligibly affected by the suspension depth. The optimum total carbon concentration range and pH range were 0.03 ~ 0.09 mol/L and 9.7 ~ 10.0, respectively. An average CO2 absorptivity of 86.16% and average CO2utilization efficiency of 79.18% were achieved using this in situ carbon-supply system in large-scale cultivation of Spirulina platensis, with an initial total carbon concentration of 0.06 mol/L and pH value of 9.8. Our results demonstrated that this system could obtain a favorable CO2utilization efficiency in outdoor, large-scale cultivation of Spirulina platensis in open raceway ponds.

Exploring the Metabolomic Responses of Bacillus licheniformis to Temperature Stress by Gas Chromatography/Mass Spectrometry

( Zixing Dong ),( Xiaoling Chen ),( Ke Cai ),( Zhixin Chen ),( Hongbin Wang ),( Peng Jin ),( Xiaoguang Liu ),( Kugenthiren Permaul ),( Suren Singh ),( Zhengxiang Wang ) 한국미생물생명공학회(구 한국산업미생물학회) 2018 Journal of microbiology and biotechnology Vol.28 No.3

Owing to its high protein secretion capacity, simple nutritional requirements, and GRAS (generally regarded as safe) status, Bacillus licheniformis is widely used as a host for the industrial production of enzymes, antibiotics, and peptides. However, as compared with its close relative Bacillus subtilis, little is known about the physiology and stress responses of B. licheniformis. To explore its temperature-stress metabolome, B. licheniformis strains ATCC 14580 and B186, with respective optimal growth temperatures of 42℃ and 50℃, were cultured at 42℃, 50℃, and 60℃ and their corresponding metabolic profiles were determined by gas chromatography/mass spectrometry and multivariate statistical analyses. It was found that with increased growth temperatures, the two B. licheniformis strains displayed elevated cellular levels of proline, glutamate, lysine, pentadecanoic acid, hexadecanoic acid, heptadecanoic acid, and octadecanoic acid, and decreased levels of glutamine and octadecenoic acid. Regulation of amino acid and fatty acid metabolism is likely to be associated with the evolution of protective biochemical mechanisms of B. licheniformis. Our results will help to optimize the industrial use of B. licheniformis and other important Bacillus species.