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Nathalia Del Rio Lyra Graça,Anna Rebeca de Barros Lins Silva Palmeira,Luana Osório Fernandes,Marlus da Silva Pedrosa,Renata Pedrosa Guimarães,Saulo Cabral dos Santos,Anderson Stevens Leonidas Gomes,Cl 대한영상치의학회 2019 Imaging Science in Dentistry Vol.49 No.2
The available methods for veneer evaluation are limited to clinical and radiographic examinations, which may not allow the appropriate identification of failure. In this report, we demonstrate the use of optical coherence tomography (OCT) as a noninvasive diagnostic and follow-up method to evaluate gingival recovery and the adhesive interface in aesthetic oral rehabilitation involving periodontal plastic surgery and ceramic laminate veneers. OCT was efficient for evaluating both soft and hard tissues, as well as the quality of the adhesive interface. In conclusion, OCT was found to be a promising approach for the professional evaluation of aesthetic oral rehabilitation, as it was capable of generating images that enabled the analysis of gingival recovery and the adhesive interface.
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Gait Pattern Generation under Disturbance Force
Rio Ozawa,Yuki Kamogawa,Yasuto Tamura,Hun-ok Lim 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
This paper describes a gait pattern generation and the mechanisms of a biped humanoid robot that has 42 DOFs in total. The movable angles of the joints of the biped robot are about the same as those of a human. Its height is 1.66 [m] and its weight is 62.5 [kg]. If disturbance forces are applied to the waist when the robot is walking, the robot should change its step length to control its balance and not fall down. The gait pattern consists of a leg trajectory, an arm trajectory, and a waist trajectory is created using a fuzzy control rule. A waist trajectory that can cancel the moments generated by the motion of the legs is also determined by using the preview control. To confirm the efficacy of the gait pattern, walking simulations were conducted using MATLAB/Simlink and ADAMS.
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Area-power efficient lighting unit architecture based on hardware sharing
Rios, M. A.,Hong, S. H. IET 2012 Electronics letters Vol.48 No.12
<P>A shared lighting unit architecture suitable for mobile 3D graphics is presented. Sharing of resources is achieved by reusing a unitary vector operation, and diffuse and specular components calculation. Balance between area and power dissipation was compared with a more prevalent parallel unit architecture implementation. Results indicate that parallel implementations of the proposed shared units lead to much better area × power efficiency as more of these units are used for higher processing performance.</P>
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MACHINE LEARNING APPLICATION TO PREDICT COMBUSTION PHASE OF A DIRECT INJECTION SPARK IGNITION ENGINE
Rio Asakawa,Keisuke Yokota,Iku Tanabe,Kyohei Yamaguchi,Ratnak Sok,Hiroyuki Ishii,Jin Kusaka 한국자동차공학회 2022 International journal of automotive technology Vol.23 No.1
Lean-diluted combustion can enhance thermal efficiency and reduce exhaust gas emissions from spark-ignited (SI) gasoline engines. However, excessive lean mixture with external dilution leads to combustion instability due to high cycle-to-cycle variations (CCV). The CCV should be controlled as low as possible to achieve stable combustion, high engine performance, and low emissions. Therefore, a stable combustion control function is required to predict the combustion phase with a low calculation load. A machine learning-based function is developed in this work to predict the 50 % mass fraction burn location (MFB50). Input parameters to the machine learning model consist of 1-, 2-, 3-, and 4-cycle from a three-cylinder production-based gasoline engine operated under stoichiometric to the lean-burn mixture. The results show that the MFB50 prediction model achieves high accuracy when 2-cycle data are used relative to 1-cycle data, which implies that the previous cycle data affects the predicted MFB50 of the next cycle. As a result, the neural network model can predict the cyclic MFB50 error within ± 3 oCA CCV and ± 5 oCA CCV with 70 % and 90 % accuracy, respectively. However, an increasing number of cycle data worsens the prediction accuracy due to model over-learning.
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Rios-Rincon, F.G.,Estrada-Angulo, A.,Plascencia, A.,Lopez-Soto, M.A.,Castro-Perez, B.I.,Portillo-Loera, J.J.,Robles-Estrada, J.C.,Calderon-Cortes, J.F.,Davila-Ramos, H. Asian Australasian Association of Animal Productio 2014 Animal Bioscience Vol.27 No.1
Forty-eight Pelibuey${\times}$Katahdin male intact lambs ($23.87{\pm}2.84$ kg) were used in an 84-d feeding trial, with six pens per treatment in a $2{\times}2$ factorial design arrangement. The aim of the study was to evaluate the interaction of two dietary energy levels (3.05 and 2.83 Mcal/kg ME) and two dietary protein levels (17.5% and 14.5%) on growth performance, dietary energetics and carcass traits. The dietary treatments used were: i) High protein-high energy (HP-HE); ii) High protein-low energy (HP-LE); iii) Low protein-high energy (LP-HE), and iv) Low protein-low energy (LP-LE). With a high-energy level, dry matter intake (DMI) values were 6.1% lower in the low-protein diets, while with low-energy, the DMI values did not differ between the dietary protein levels. Energy levels did not influence the final weight and average daily gain (ADG), but resulted in lower DMI values and higher gain efficiencies. No effects of protein level were detected on growth performance. The observed dietary net energy (NE) ratio and observed DMI were closer than expected in all treatments and were not affected by the different treatments. There was an interaction (p<0.03) between energy and protein level for kidney-pelvic and heart fat (KPH), KPH was higher in lambs fed high energy and high protein diet but not in high energy and low protein diet. The KPH was increased (20.2%, p = 0.01) in high-energy diets, while fat thickness was increased (21.7%, p = 0.02) in high-protein diets. Therefore, it is concluded that dietary energy levels play a more important role in feed efficiency than protein levels in finishing lambs with a high-energy diet (>2.80 Mcal/kg ME). Providing a level of protein above 14.5% does not improves growth-performance, dietary energetics or carcass dressing percentage.
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Genetic diversity evolution in the Mexican Charolais cattle population
Rios-Utrera, Angel,Montano-Bermudez, Moises,Vega-Murillo, Vicente Eliezer,Martinez-Velazquez, Guillermo,Baeza-Rodriguez, Juan Jose,Roman-Ponce, Sergio Ivan Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.7
Objective: The aim was to characterize the genetic diversity evolution of the registered Mexican Charolais cattle population by pedigree analysis. Methods: Data consisted of 331,390 pedigree records of animals born from 1934 to 2018. Average complete generation equivalent, generation interval, effective population size (N<sub>e</sub>), and effective numbers of founders (f<sub>e</sub>), ancestors (f<sub>a</sub>), and founder genomes (N<sub>g</sub>) were calculated for seven five-year periods. The inbreeding coefficient was calculated per year of birth, from 1984 to 2018, whereas the gene contribution of the most influential ancestors was calculated for the latter period. Results: Average complete generation equivalent consistently increased across periods, from 4.76, for the first period (1984 through 1988), to 7.86, for the last period (2014 through 2018). The inbreeding coefficient showed a relative steadiness across the last seventeen years, oscillating from 0.0110 to 0.0145. During the last period, the average generation interval for the father-offspring pathways was nearly 1 yr. longer than that of the mother-offspring pathways. The effective population size increased steadily since 1984 (105.0) and until 2013 (237.1), but showed a minor decline from 2013 to 2018 (233.2). The population displayed an increase in the f<sub>a</sub> since 1984 and until 2008; however, showed a small decrease during the last decade. The effective number of founder genomes increased from 1984 to 2003, but revealed loss of genetic variability during the last fifteen years (from 136.4 to 127.7). The f<sub>a</sub>:f<sub>e</sub> ratio suggests that the genetic diversity loss was partially caused by formation of genetic bottlenecks in the pedigree; in addition, the N<sub>g</sub>:f<sub>a</sub> ratio indicates loss of founder alleles due to genetic drift. The most influential ancestor explained 1.8% of the total genetic variability in the progeny born from 2014 to 2018. Conclusion: Inbreeding, N<sub>e</sub>, f<sub>a</sub>, and N<sub>g</sub> are rather beyond critical levels; therefore, the current genetic status of the population is not at risk.
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( Rio Wironegoro ),( Ari Sutjahjo ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Case Report : A 37 years old woman came to endocrinology clinic with signs and symptoms of hypothyroidism. The patient was diagnosed with toxic multinodular goiter 6 years ago and due to massive size of the goiter in concert with hyperthyroid signs and symptoms, thyroidectomy was performed. After the procedure, due to not well-informed, the patient consider that she was already cured and decided not to went back to the endocrinology clinic for thyroid function monitoring. Six year after, she start having complaint such as weight gain, swelling feet, puffy face, sleepiness, constipation, diffi cult to concentrate, feeling depressed and intolerance to cold for the last 6 month. Her thyroid function revealed TSH level was 375,9 mU/L with FT4 level was 0,1 ng/dL. Lipid profi le showed total cholesterol was 388 mg/dL and LDL was 251 mg/dL. We start treating the patient by giving information and education regarding hypothyroidism, supply her with levothyroxine 100 mcg/day and suggest the patient to come to endocrinology clinic every 4-6 weeks for thyroid function monitoring. Conclusions: Although seemingly simple and often ignored, failing to give information and education could cause a detoriation effect for the patient.
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Rio Prabowo, Aditya,Myung Bae, Dong,Min Sohn, Jung,Fauzan Zakki, Ahmad,Cao, Bo,Hyung Cho, Joung Elsevier 2017 Thin-Walled Structures Vol.115 No.-
<P><B>Abstract</B></P> <P>The purpose of this paper is to study the rebounding phenomenon of a striking ship and its effect on the structural crashworthiness of the struck ship. Pioneer works on ship collision and mathematical formulations to assess energy after collision are described to summarize the behaviour of the ship structure under collision between ships in various scenarios. A benchmark study is conducted using laboratory tests of the resistance to penetration of a stiffened plate to validate the methodology of the present work, which uses finite element methods to model a series of dynamic collision scenarios. The setting and configuration of a full-scale collision analysis is introduced, along with the configurations of the defined scenarios. External and internal ship collision parameters are considered as parameters that will affect structural behaviour prior to and after ruptures. The results of the evaluation indicate that in the event of a side collision, the striking ship can either fully stuck or rebounding phenomena. These phenomena produce significant differences in term of internal energy and crushing force, which are included as crashworthiness criteria. The type of striking ship, as well as its velocity, significantly affects the rebounding of the striking ship and behaviour of the struck ship. A notable gap between medium and high-carbon steels is not found during observations of the structural crashworthiness accounting for structure materials. Finally, other criteria for assessing the mechanisms and effects of rebounding during a collision are summarized, i.e. kinetic energy, acceleration, and extent of damage.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Structural crashworthiness in side collision and ship’s rebounding are presented. </LI> <LI> Benchmark study is conducted before a series of collision scenario is calculated. </LI> <LI> Numerical experiment is performed to calculate the defined collision scenario. </LI> <LI> Significant difference is shown during fully-struck and rebounding scenarios. </LI> <LI> Zero-movement state is experienced by the striking ship before rebounding occurs. </LI> </UL> </P>
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