Adaptive Scene Classification based on Semantic Concepts and Edge Detection

Nuraini Jamil,Shohel Ahmed,Kangseok Kim(김강석),Sanggil Kang(강상길) 한국지능정보시스템학회 2009 지능정보연구 Vol.15 No.2

개념 기반 이미지풍경 분류 기법은 데이터베이스에 있는 대량의 이미지 를 카테고리별로 구분하는 많이 적용되는 응용분야이다. 풍경이 속하는 카테고리를 알면 데이터베이스에서 해변, 산, 숲, 필드와 같은 필요한 풍경사진을 찾고자 할 때 불필요한 이미지를 필터링하여 신속하고 정확하게 찾을 수 있다. 본 논문에서는 이미지 분류를 위한 시멘틱 모델링 기반의 적응 세그멘테이션 기법을 제안한다. 잔디, 물, 하늘과 같은 시멘틱 개념에 따른 이미지를 서브구역으로 나누어 세그멘테이션을 한다. 세그멘테이션은 에지탐색을 이용하고 또한 K-Nearest(K-NN)를 이용하여 세그멘테이션을 한다. 세그멘테이션 과정에서 이미지의 복잡도에 따라 적응적으로 서브구역으로 나눈다. 실험에서는 Vosel과 schiele가 제안한 방법과의 비교를 통해서 정확도면에서 제안된 연구의 우수성을 보여준다. Scene classification and concept-based procedures have been the great interest for image categorization applications for large database. Knowing the category to which scene belongs, we can filter out uninterested images when we try to search a specific scene category such as beach, mountain, forest and field from database. In this paper, we propose an adaptive segmentation method for real-world natural scene classification based on a semantic modeling. Semantic modeling stands for the classification of sub-regions into semantic concepts such as grass, water and sky. Our adaptive segmentation method utilizes the edge detection to split an image into sub-regions. Frequency of occurrences of these semantic concepts represents the information of the image and classifies it to the scene categories. K-Nearest Neighbor (k-NN) algorithm is also applied as a classifier. The empirical results demonstrate that the proposed adaptive segmentation method outperforms the Vogel and Schiele’s method in terms of accuracy.

Vibro-acoustic analysis of free piston engine structure using finite element and boundary element methods

Nuraini A.A 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.8

This paper presents the results of vibro-acoustic modeling and simulation using the finite element and the boundary element methods for the free piston engine structure. A model of the engine was constructed through the use of finite element software to perform a normal mode analysis of the engine structure. The objective was to determine the mode shapes and the natural frequency that contribute to engine structure vibration. Theoretical development of the engine balance motion and frequency response was also conducted. From the simulation and finite element analysis, the force response pattern of the engine vibration was determined and then compared with its natural frequency. The vibration data were used as the input data for noise analysis using the boundary element method. The integration of the finite element and the boundary element determined the noise-frequency data of the engine structure toward the occurrence of engine noise. The information can be used by designers to analyze engine specifications and structure, especially at the preliminary design stage.

Customer Loyalty on Household Consumer Goods Distribution: A Survey among the Asian Parent Indonesia Community

Yeany NURAINY,Z,HIDAYAT,Robby Marcelinus NANI,Riezca Kartika Dara APRILINA 한국유통과학회 2022 유통과학연구 Vol.20 No.4

Purpose: Mothers determines all household requirements and decides almost all their related things. The purpose of this study was to examine several independent variables on customer loyalty among mothers in The Asian Parents Indonesia community. The independent variables include advertising on Instagram, brand image, word-of-mouth, community cohesiveness, while the dependent variable is purchasing decisions. Research design, data, and methodology: This quantitative study uses a survey method for the Asian Parents Indonesia community members, listed on its website. The population of this community was recorded at 1,310, with a sample of 135 respondents. Data processing is done by using Structural Equation Model using Smart-PLS software. Results: Variables that significantly affect purchasing decisions and customer loyalty are word-of-mouth, summarized in a testimony, advertising on Instagram, and brand image. However, community cohesiveness does not affect customer loyalty to a brand. Conclusion: The results of this test propose significant implications for developing the relationship between baby toiletries producers and customers through word-of-mouth testimonials and advertisements on Instagram while community cohesiveness in maintaining customer loyalty using a brand is not influential, but interactions that occur within the community become a reference for mothers to choose a baby toiletries product.

Heavy Metal Resistant Endophytic Fungi Isolated from Nypa fruticans in Kuching Wetland National Park

Jenny Choo,Nuraini Binti Mohd Sabri,Daniel Tan,Aazani Mujahid,Moritz Müller 한국해양과학기술원 2015 Ocean science journal Vol.50 No.2

Heavy metal pollution is an environmental issue globally and the aim of this study was to isolate endophytic fungi from mangrove wetlands of Sarawak to assess and test their ability to grow in the presence of various heavy metals (copper (Cu), zinc (Zn), lead (Pb), and chromium (Cr)). Samples of Nypa fruticans were collected from Kuching Wetland National Park (KWNP) for subsequent endophyte isolation. Ninety-three (93) isolates were obtained and assessed and the most resistant isolates (growing at concentrations up to 1000 ppm) were identified using fungal primers ITS 1 and ITS 4. All of the endophytic fungi were identified to be closely related to Pestalotiopsis sp. and this is to our knowledge the first study reporting the ability of Pestalotiopsis sp. to grow at high concentrations of copper, lead, zinc and chromium. Our results highlight the potential of using endophytic fungi for the treatment of heavy metal pollution, for example as biosorbents.

Backward bifurcation of an Sir-Si model with vaccination and treatment

EDWIN SETIAWAN NUGRAHA,NUNING NURAINI,JANSON NAIBORHU 장전수학회 2019 Advanced Studies in Contemporary Mathematics Vol.29 No.1

In the presence of treatment, most epidemic models demon- strate behavior of backward bifurcation. This is important in epidemiol- ogy because it provides signicant information for disease control. How- ever, most models consider only one single population. In this paper, an extended model of two populations in the form SIR-SI involving vaccina- tion and treatment is analyzed. The analysis of local and global stability of equilibria is discussed. By using the center manifold theorem, this model has backward bifurcation behavior when the number of infected people exceeds the treatment capacity. Vaccination decreases the basic reproduction number, but does not aect the backward bifurcation be- havior. This study also showed that under vaccination and treatment, an endemic equilibrium always occurs when R0 > 1.

Health Effects of Underground Workspaces cohort: study design and baseline characteristics

Gerard Dunleavy,Thirunavukkarasu Sathish,Nuraini Nazeha,Michael Soljak,Nanthini Visvalingam,Ram Bajpai,Hui Shan Yap,Adam C,Roberts,Thuan Quoc Thach,André,Comiran Tonon,Chee Kiong Soh,Georgios Ch 한국역학회 2019 Epidemiology and Health Vol.41 No.-

The development of underground workspaces is a strategic effort towards healthy urban growth in cities with ever-increasing land scarcity. Despite the growth in underground workspaces, there is limited information regarding the impact of this environment on workers’ health. The Health Effects of Underground Workspaces (HEUW) study is a cohort study that was set up to examine the health effects of working in underground workspaces. In this paper, we describe the rationale for the study, study design, data collection, and baseline characteristics of participants. The HEUW study recruited 464 participants at baseline, of whom 424 (91.4%) were followed-up at 3 months and 334 (72.0%) at 12 months from baseline. We used standardized and validated questionnaires to collect information on socio-demographic and lifestyle characteristics, medical history, family history of chronic diseases, sleep quality, health-related quality of life, chronotype, psychological distress, occupational factors, and comfort levels with indoor environmental quality parameters. Clinical and anthropometric parameters including blood pressure, spirometry, height, weight, and waist and hip circumference were also measured. Biochemical tests of participants’ blood and urine samples were conducted to measure levels of glucose, lipids, and melatonin. We also conducted objective measurements of individuals’ workplace environment, assessing air quality, light intensity, temperature, thermal comfort, and bacterial and fungal counts. The findings this study will help to identify modifiable lifestyle and environmental parameters that are negatively affecting workers’ health. The findings may be used to guide the development of more health-promoting workspaces that attempt to negate any potential deleterious health effects from working in underground workspaces.

Learner-guided Lesson Study? A New Perspective in EFL Argumentative Writing Development

Hanafi Hanafi,Syaadiah Arifin,Kristi Nuraini,Aswir Aswir 아시아테플 2022 The Journal of Asia TEFL Vol.19 No.3

Factor Analysis on Children Immunization Compliance in Depok

Fajar Tri Waluyanti,Yeni Rustina,Tuti Nuraini 한국간호과학회 2011 한국간호과학회 학술대회 Vol.2011 No.10

Improvement of patient safety in Hospital by Escalating Nurses Knowledge about Continuity of Care and SBAR Communication

Rosari Tarigan,S. Setyowati,Tuti Nuraini,Tuti Afriani,Aat Yatnikasari 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10

Introduction: Patient safety in hospitals is essential to improve the quality of health care services. Effective communication is an important part to influence quality improvement and maintaining patient safety. SBAR communication is a verbal communication tool between health professions and nursing practitioners in providing continuous nursing care or continuity of care. Purpose : This study examines the relationships between nurses" knowledge of the continuity of care and SBAR communication and nurses" perceptions of patient safety implementation at hospital X in Jakarta. Methods: The design of this study was correlative with a cross-sectional approach. The proportional random sampling was used to collect data from 156 nurses. The data collection has used a questionnaire consisting of a questionnaire focusing on the characteristics of nurses, SBAR communication and continuity of care knowledge, and nurses" perceptions on the implementation of patient safety. Questionnaires were distributed via Google forms. The data that has been obtained were analyzed using the Chi-Square test and logistic regression. Results: The multivariate model results showed that the variable that most affects nurses" perceptions on the implementation of patient safety is SBAR communication knowledge (p=0.036). Conclusion: It is recommended that improving nurses" knowledge in the continuity of care and SBAR communication can enhance patient safety.

Lateral Crushing Properties of Non-Woven Kenaf (Mat)- Reinforced Epoxy Composite Hexagonal Tubes

Munir Faraj Almbrouk Alkbir,Mohd Sapuan b. Salit,Nuraini bt. Abdul Aziz,Mohamad Ridzwan Ishak 한국정밀공학회 2016 International Journal of Precision Engineering and Vol.17 No.7

The current study investigated the energy absorption capability and load carrying capacity of non-woven natural kenaf fiber (mat)/ epoxy–hexagonal composite tubes subjected to a lateral quasi-static crushing test. The hexagonal composite tubes were manufactured by the hand lay-up technique. Natural non-woven kenaf (mat) was chosen as reinforcement due to low cost, low specific weight, easy processing, no need for tooling when dealing with the raw material, and no skin irritation and epoxy resin was used as the matrix to manufacture three configurations of β=40o, β=50o and β=60o of natural non-woven kenaf (mat)/epoxy laminate. The effects of hexagonal angles, supporting plate inside the tubes, and failure modes were studied by a lateral compression test. The crashworthiness of the tubes was evaluated by analysis of the specific energy absorption in quasi-static lateral compression. Specific energy absorption (SEA) was obtained from the load–displacement curve during testing. The failure mode of the tubes was analyzed from high-resolution photographs. Overall, the tube with β=40o had the best crashworthiness among the tubes. Furthermore, the results showed that the tubes with supporting plates have better specific energy absorption for all tested specimens and exhibited approximately 69% better crashworthiness than the non-supporting ones. The results also demonstrated that all specimens failed by the longitudinal failure mode.