• Title/Summary/Keyword: Artificial organism

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A Coevolution of Artificial-Organism Using Classification Rule And Enhanced Backpropagation Neural Network (분류규칙과 강화 역전파 신경망을 이용한 이종 인공유기체의 공진화)

  • Cho Nam-Deok;Kim Ki-Tae
    • The KIPS Transactions:PartB
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    • v.12B no.3 s.99
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    • pp.349-356
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    • 2005
  • Artificial Organism-used application areas are expanding at a break-neck speed with a view to getting things done in a dynamic and Informal environment. A use of general programming or traditional hi methods as the representation of Artificial Organism behavior knowledge in these areas can cause problems related to frequent modifications and bad response in an unpredictable situation. Strategies aimed at solving these problems in a machine-learning fashion includes Genetic Programming and Evolving Neural Networks. But the learning method of Artificial-Organism is not good yet, and can't represent life in the environment. With this in mind, this research is designed to come up with a new behavior evolution model. The model represents behavior knowledge with Classification Rules and Enhanced Backpropation Neural Networks and discriminate the denomination. To evaluate the model, the researcher applied it to problems with the competition of Artificial-Organism in the Simulator and compared with other system. The survey shows that the model prevails in terms of the speed and Qualify of learning. The model is characterized by the simultaneous learning of classification rules and neural networks represented on chromosomes with the help of Genetic Algorithm and the consolidation of learning ability caused by the hybrid processing of the classification rules and Enhanced Backpropagation Neural Network.

Illustrative Mechanism and Fantastic Organism in Postmodern American Science Fiction

  • Kim, Il-Gu
    • English Language & Literature Teaching
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    • v.11 no.3
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    • pp.25-38
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    • 2005
  • Postmodern American science fiction authors often dramatize the human fear and hope for the newly emerging artificial life forms. For example, Helen as an advanced artificial intelligence Richard Power's Galatea 2.2 shows that the student's memorizing efforts for exams can be useless someday. In Neal Stephenson's Snow Crash machines are liable to be infected with viruses like human bodies. In He, She and It, Piercy's parallel of an artificial human (Yod) and a mythic personification (Golem) allegorically reveals the pandora-like unpredictable effect of advanced technology. More than the mechanical entities (the diffusion and linear models for Latour), these biologically artificial entities reveal the limitations of even the fantastically idealized technology simply because the human being as the creators or impersonators of these machines are not perfect. Compared to illustrative mechanism, biologically artificial entities (Latour's transition or whirlwind models) are inherently rebellious because of their closeness to the creators. The Butler's organic environmental interaction of the Earthseed convincingly demonstrates how the wrong use of science ruins the holy earth and also how human beings survive through the right use of effective science with the aid of anthroposophy.

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Genesis of Artificial Strains Based on Microbial Genomics

  • Kim, Sun-Chang;Sung, Bong-Hyun;Yu, Byung-Jo
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 2001.06a
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    • pp.15-19
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    • 2001
  • Creating an artificial strain with a minimal gene set for a specific purpose is every biologist's dream. With the complete genome sequencing of more than 50 microorganisms and extensive functional analyses of their genes, it is possible to design a genetic blueprint for a simple custom-designed microbe with the minimal gene set. Two different approaches are being considered. The first 'top-down' approach is trimming the genome to a minimal gene set by selectively removing genes of an organism thought to be unnecessary based on microbial genomics. The second 'bottom-up' approach is to synthesize the proposed minimal genome from basic chemical building blocks. The 'top-down' approach starting with the genome of a well known microorganism is more technically feasible, whereas the bottom-up approach may not be attainable in the nearest future because of the lack of the complete functional analysis of the genes needed for a life. Here in this study, we used the top-down approach to minimize the E. coli genome to create an artificial organism with 'core' elements for self-sustaining and self-replicating cells by eliminating unnecessary genes. Using several different kinds of sophisticated deletion techniques combined with a p:1age and transposons, we deleted about 19% of the E. coli genome without causing any damages to cellular growth. This smaller E. coli genome will be further reduced to a genome with a minimal gene l;et essential for cell life. This minimized E. coli genome can lead to the construction of many custom-designed strains with myriad practical and commercial applications.

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A Study on the Intention to use Personal Mobility Services: Focused on the SOR(Stimulus-Organism-Response) Model (퍼스널 모빌리티 사용의도에 관한 연구: SOR(Stimulus-Organism-Response) 모델을 중심으로)

  • Wonguk Lee;Heetae Yang
    • Information Systems Review
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    • v.24 no.2
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    • pp.67-88
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    • 2022
  • This study proposed a research model that can explain the usage intentions of users and non-users by considering the performance aspects of personal mobility and external environmental factors based on the SOR (Stimulus-Organism-Response) model, A survey was conducted targeting domestic users and non-users, and research models and hypotheses were verified through Partial Least Square (PLS) and Artificial Neural Network (ANN). As a result of the analysis, it was confirmed that the users' perceived satisfaction and perceived trust had a positive effect on their intention to use, and that perceived risk and environmental value had a significant relationship with perceived satisfaction and perceived trust. For non-users, it was found that there was a positive correlation between perceived satisfaction and intention to use, and it was verified that perceived risk and environmental value, like users, were significant antecedents of perceived satisfaction and perceived trust. Among the remaining variables, the perceived mobility of users and the perceived ease of use of non-users were respectively presented as important influencing factors on perceived satisfaction.

A Study on Indicator Bacteria for Water Quality Management of Urban Artificial Lakes (도심지역 인공호의 수질관리를 위한 지표세균에 관한 연구)

  • Chu, Duk-Sung;Kwon, Hyuk-Ku;Lee, Sang-Eun;Lee, Jang-Hoon
    • Journal of Environmental Health Sciences
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    • v.33 no.4
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    • pp.299-305
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    • 2007
  • Distribution of fecal pollution indicator bacteria and environmental parameter were investigated of urban artificial lakes. An average concentration of temperature, pH, SS, DO, $COD_{Mn}$, T-P, T-N, Turbidity, Chl-a were $21.5^{\circ}C$, 8.07, 116.70 mg/l, 8.66 mg/l, 2.24 mg/1, 0.52 mg/l, 1.71mg/l, 80.54 NTU, and 52.12 mg/l respectively. From the results of bivariate correlation analysis, fecal contamination indicator bacteria were found to be mutually correlated. And turbidity and suspended solid were correlated. From the results of principal component analysis, four factors were extracted. And four factors of variance explained up to 81.5 percentage. Factor 1 was pollution pattern by fecal contamination, factor 2 was physical pollution pattern by pollution source, factor 3 was natural pollution by precipitation, and factor 4 was artificial pollution pattern by organism.

Differences in Preschool Children's Perceptions of Artificial Intelligence according to their Experiences with AI Robots in daycare centers (어린이집내 인공지능 로봇 사용경험 여부에 따른 유아의 인공지능 인식 차이)

  • Boram, Lee;Soojung, Kim
    • Korean Journal of Childcare and Education
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    • v.19 no.2
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    • pp.43-59
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    • 2023
  • Objective: This study investigated the differences in preschool children's perceptions of artificial intelligence (AI) and their distribution by latent profiles according to their experience with AI robots in daycare centers. Methods: The participants included 119 five-year-old children, 52 of whom had experience with AI robots in daycare centers and 67 of whom did not. Children's perceptions of AI were measured using the Godspeed scale from Bartneck et al.(2009). Data were analyzed using a t-test, latent profile analysis, and chi-square test. Results: The results showed that compared to the inexperienced group, the experienced group reported lower levels of animacy and perceived intelligence of AI robots, indicating higher levels of AI knowledge and understanding. In addition, the experienced group had a higher probability of belonging to the 'machine recognition' type than 'organism recognition' type, although the difference was not statistically significant. Conclusion/Implications: The findings suggest that experience with AI robots in daycare centers can improve children's AI knowledge and understanding. To further enhance this effect, it is necessary to increase the number of robots put into classrooms, and to consider various teaching media that reflect children's preferences.

Phloeospora Leaf on Spiraea

  • Shin, Hyeon-Dong;Lee, Hyun-Tae;Oh, Jeong-Taek
    • The Plant Pathology Journal
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    • v.15 no.1
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    • pp.76-78
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    • 1999
  • A Phloeospora leaf spot disease on Spiraea prunifolia var. simpliciflora was noticed to commonly occur in Korea. The causal organism of the disease was identified as Phloeospora spiraeicola based on the morphological characteristics of conidiomata and conidia. Pathogenicity of the fungus was proved by artificial inoculation. This is the first record of Phloeospora leaf spot in Korea.

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DNA Coding Method for Evolution of Developmental Model (발생모델의 진화를 위한 DNA 코딩방법)

  • 심귀보;이동욱
    • Proceedings of the IEEK Conference
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    • 1999.06a
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    • pp.464-467
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    • 1999
  • Rapid progress in the modeling of biological structures and simulation of their development has occurred over the last few years. Cellular automata (CA) and Lindenmayer-system(L-system) are the representative models of development/morphogenesis of multicellular organism. L-system is applied to the visualization of biological plant. Also, CA are applied to the study of artificial life and to the construction of an artificial brain. To design the L-system and CA automatically, we make this model evolve. It is necessary to code the developmental rules for evolution. In this paper, we propose a DNA coding method for evolution the models of development/morphogenesis of biological multicellular organisms. DNA coding has the redundancy and overlapping of gene and is apt for the representation of the rule. In this paper, we propose the DNA coding method of CA and L-system.

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Biotechnological Approaches in Sericultural Science and Technology of Uzbekistan

  • Madyarov Shukhrat R.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.11 no.1
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    • pp.13-19
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    • 2005
  • Biotechnological researches in Central Asian Research Institute of Sericulture were developed since 1981 when laboratory of artificial diets for mulberry silk­worm was created. The researches were directed not only to creation of accessible artificial diets (AD) for off-season mass rearing of economical beneficial insect and for industrialization of sericulture but also to obtaining of easy reproducible source of animal proteins, carbohydrates, lipids, enzymes, enzymes inhibitors and other metabolites - bioresource for manufacture of oriental medicine preparations. Space experiments with silkworms became possible with use of AD. These experiments used mulberry silkworm as high effective board test organism with outstanding developmental, reproductive and transgenic properties having impor­tant significance in future of cosmonautics. Introduction to practice of bioprotective and ecologically pure method of drying and sterilizing of green cocoons and by-products of silk manufacture allows to increase efficiency of cocoons reeling technology as well as to preserve nativity of biological active substances in mulberry silkworm pupae that is unachievable by traditional methods of raw material processing. New spheres of application of two important silk proteins - fibroin and sericin in medicine, cosmetics, for bio- and nanotechnology are opening with use of biotechnological approaches. At present the achievements and experience of R & D in these fields are used in creation of modern pests biocontrol agents. Schemes of efficient processing of cocoon raw material, by-products and wastes of sericulture and cocoon processing are devel- Institute of Physiology and Biophysics, Uzbek Academy of Sciences, I, Niyazov street, 700095, Tashkent, Uzbekistan. oped for obtaining of traditional and new consumer products.

The Culture of free-swiming Copepod Secies Apocyclops sp. (Copepod; Cyclopoida)by baking Yeast (빵 이스트를 먹이로 이용한 부유성 코페포다 Apocyclops sp.(Copepod: Cyclopoida)의 배양)

  • Jung, Min-Min;Kim, Hyeung-Sin;Rho, Sum;Rumengan, Innke F.M.;Hagiwara, Atsushi
    • Journal of Aquaculture
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    • v.12 no.4
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    • pp.303-307
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    • 1999
  • Copepod is useful live food organism in the larval rearing. However of fin fish, culcures of copepod species (Specially calanoida and cyclopoida) were very difficult under artificial management conditions. In this study, we report successful culture of a free swimming cyclopodia copepod species (Apocyclops sp.) by easily baker's yeast as food. The maximum culture density of Apocyclops sp. was observed 11,200±2,660 ind/ℓ during the 30 days culture periods in the 1.5ℓ culture tanks. The nauplii were growth up maximum density 6,400±432 ind/ℓ on day 16th. The number of egg carring female was observed maximum density (666.7 ind./ℓ) of two times after 6days and 28 days of initial culture.

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