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Tropical Rainfall Characteristics at the Eastern Coast of South America
Ricardo Sarmento Tenório,권병혁,이규원,Marcia Cristina da Silva Moraes 한국기상학회 2010 Asia-Pacific Journal of Atmospheric Sciences Vol.46 No.3
Z-R relationships were developed for the Eastern Coast of Northeastern Brazil (NEB) using rainfall raindrop size distribution (RSD)data collected with a disdrometer RD-69 in the Campus of the Universidade Federal de Alagoas (UFAL: The Federal University of Alagoas) in Maceió in 2001. The RSD was stratified by rainfall rate classes. It is found that the RSD are clearly dependent on the parameters of the analytical distribution functions are, and show a marked monthly variability. The parameters of the frequency distributions are dependent on the rain rate (R). The forms of RSDs are similar to previous studies but the amount of droplets is not in each one very strongly. This may be possible due to the short period of data collection or to the intraseasonal rainfall variability. The general relationship for the Eastern Coast of NEB was found to be Z = 176.5 R1.29, with correlation coefficient equal to 0.83. This equation is in accordance with the ones for stratiform rain reported in the literature. We found that the convective rain observed is produced by convective cells imbedded into stratiform cloud layers. However, when separating stratiform and convective rainfall we found that the linear coefficient of the Z-R relation is significantly smaller for convective rainfall than for stratiform one (65 and 167 respectively), but the exponential coefficient is higher for convective than for stratiform (1.69 and 1.26 respectively).
Raindrop Size Distribution Over Northeastern Coast of Brazil
Tenorio Ricardo Sarmento,Kwon Byung-Hyuk,Silva Moraes Marcia Cristina da The Korea Institute of Information and Commucation 2006 Journal of information and communication convergen Vol.4 No.1
Precipitation measurement with ground-based radar needs an information of the raindrop size distribution (RSD) characteristics. A 10-month dataset was collected in tropical Atlantic coastal zone of northeastern Brazil where the weather radar was installed. The number of drop was mainly recorded in 300 - 500 drop $mm^{-3}$, of which the maximum was registered around 1.1 mm drop diameter.
Z-R Relationships for a Weather Radar in the Eastern Coast of Northeastern Brazil
Tenorio Ricardo Sarmento,Kwon Byung-Hyuk,Silva Moraes Marcia Cristina da The Korea Institute of Information and Commucation 2006 Journal of information and communication convergen Vol.4 No.1
A disdrometer has been used to determine Z-R relationships for the weather radar, which is unique coastal radar operating regularly in western tropical south Atlantic. Rainfall rates were divided into the stratiform rain and the convective rain on the basis of $10\;mm\;h^{-1}$. The Z-R relationship for the stratiform class was similar to the general one since the convective clouds did not developed and two classes of the rain rate were mixed.
Sunflower cake with or without enzymatic complex for broiler chickens feeding
Eveline Berwanger,Ricardo Vianna Nunes,tiago Junior Pasquetti,Alice Eiko Murakami,Taciana Maria Moraes de Oliveira,Douglas Fernando Bayerle,Rafael Frank 아세아·태평양축산학회 2017 Animal Bioscience Vol.30 No.3
Objective: This study was to evaluate the sunflower cake and enzymatic complex fed to broilers from 22 to 42 d of age. Methods: In a completely randomized design, a total of 850 birds were allotted in a 2×5 factorial scheme (with and without enzymatic complex) and five inclusion levels (0%, 5%, 10%, 15%, 20%) of sunflower cake. There were 5 replications and 17 birds in each experimental unit. Data from performance, carcass yield and intestinal morphology were evaluated. Results: Feed intake, weight gain, final weight and feed:gain ratio linearly worsened as sunflower cake increased. For weight gain, final weight and feed:gain ratio, the birds whose diets contained levels of 15% and 20% of sunflower cake showed worse values (p<0.05) than the birds fed the control diet. When fed the enzymatic complex, birds improved (p<0.05) crypt depth and villus:crypt ratio in the jejunum. As inclusion levels of sunflower cake increased, villus depth and villus:crypt ratio in duodenum, jejunum and ileum linearly reduced and the crypt depth linearly increased. Carcass yield linearly reduced as sunflower cake increased. Conclusion: Based on performance, sunflower cake can be used up to 10% in broilers feeding from 21 to 42 days of age.
Robson Costa,Jim Lau,Paulo Portugal,Francisco Vasques,Ricardo Moraes 한국통신학회 2019 Journal of communications and networks Vol.21 No.3
In this paper, the RT-WiFi architecture is proposedto handle real-time (RT) communication in infrastructured IEEE802.11 networks operating in high density industrial environments. This architecture is composed of a time division multiple access(TDMA)-based coordination layer that schedules the medium accessof RT traffic flows, and an underlying traffic separation mechanismthat is able do handle the coexistence of RT and non-RT trafficsources in the same communication environment. The simulationassessment considers an overlapping basic service set (OBSS),where a set of RT and non-RT stations share the same frequencyband. The performance assessment compares the behaviour of theRT-WiFi architecture vs. the behaviour of standard distributedcoordination function (DCF), point coordination function (PCF),enhanced distributed channel access (EDCA), and hybrid coordinationfunction (HCF) controlled channel access (HCCA) mediumaccess control mechanisms. A realistic error-prone model has beenused to measure the impact of message losses in the RT-WiFi architecture. It is shown that the proposed RT-WiFi architecture offersa significantly enhanced behaviour when compared with the useof IEEE 802.11 standard mechanisms, in what concerns averagedeadline misses and average access delays. Moreover, it also offersan almost constant access delay, which is a relevant characteristicwhen supporting RT applications.
Greison Rabelo de Oliveira,Leandro Pozzer,Lucas Cavalieri-Pereira,Paulo Hemerson de Moraes,Sergio Olate,Jose Ricardo de Albergaría Barbosa 대한치주과학회 2012 Journal of Periodontal & Implant Science Vol.42 No.6
Purpose: Several parameters have been described for determining the success or failure of dental implants. The surface properties of transgingival implant components have had a great impact on the long-term success of dental implants. The purpose of this study was to compare the tendency of two periodontal pathogens to adhere to and colonize zirconia abutments and titanium alloys both in hard surfaces and soft tissues. Methods: Twelve patients participated in this study. Three months after implant placement, the abutments were connected. Five weeks following the abutment connections, the abutments were removed, probing depth measurements were recorded,and gingival biopsies were performed. The abutments and gingival biopsies taken from the buccal gingiva were analyzed using real-time polymerase chain reaction to compare the DNA copy numbers of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and total bacteria. The surface free energy of the abutments was calculated using the sessile water drop method before replacement. Data analyses used the Mann Whitney U-test, and P-values below 0.05 find statistical significance. Results: The present study showed no statistically significant differences between the DNA copy numbers of A. actinomycetemcomitans,P. gingivalis, and total bacteria for both the titanium and zirconia abutments and the biopsies taken from their buccal gingiva. The differences between the free surface energy of the abutments had no influence on the microbiological findings. Conclusions: Zirconia surfaces have comparable properties to titanium alloy surfaces and may be suitable and safe materials for the long-term success of dental implants.
De Oliveira, Greison Rabelo,Pozzer, Leandro,Cavalieri-Pereira, Lucas,De Moraes, Paulo Hemerson,Olate, Sergio,De Albergaria Barbosa, Jose Ricardo Korean Academy of Periodontology 2012 Journal of Periodontal & Implant Science Vol.42 No.6
Purpose: Several parameters have been described for determining the success or failure of dental implants. The surface properties of transgingival implant components have had a great impact on the long-term success of dental implants. The purpose of this study was to compare the tendency of two periodontal pathogens to adhere to and colonize zirconia abutments and titanium alloys both in hard surfaces and soft tissues. Methods: Twelve patients participated in this study. Three months after implant placement, the abutments were connected. Five weeks following the abutment connections, the abutments were removed, probing depth measurements were recorded, and gingival biopsies were performed. The abutments and gingival biopsies taken from the buccal gingiva were analyzed using real-time polymerase chain reaction to compare the DNA copy numbers of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, and total bacteria. The surface free energy of the abutments was calculated using the sessile water drop method before replacement. Data analyses used the Mann Whitney U-test, and P-values below 0.05 find statistical significance. Results: The present study showed no statistically significant differences between the DNA copy numbers of A. actinomycetemcomitans, P. gingivalis, and total bacteria for both the titanium and zirconia abutments and the biopsies taken from their buccal gingiva. The differences between the free surface energy of the abutments had no influence on the microbiological findings. Conclusions: Zirconia surfaces have comparable properties to titanium alloy surfaces and may be suitable and safe materials for the long-term success of dental implants.
Kinetic Energy Rate of the Rain Drops Based on the Impact Signal Analysis
마르시아 모라에스,히까르도 테노리오,엘사 삼파이오,움베르또 바르보사,까를로스 산또스,윤홍주,권병혁,Moraes, Macia C. da S.,Tenorio, Ricardo S.,Sampaio, Elsa,Barbosa, Humberto A.,dos Santos, Carlos A.C.,Yoon, Hong-Joo,Kwon, Byung-Hyuk Korea Institute of Electronic Communication Scienc 2019 한국전자통신학회 논문지 Vol.14 No.4
지표면 침식 잠재력은 비가 내린 영향으로 토양에 전달 된 운동 에너지로 평가할 수 있다. 충격 신호를 분석할 수 있는 디즈드로미터로 우적 에너지율 관계식을 산출하였다. 대륙 강수의 97%와 해양 강수의 95%가 강우량과 강우율의 관계로 이루어진 이 지수 방정식으로 설명되었다. 이 관계식의 지수는 강우 유형에 의존하지 않지만 계수는 강우 사건에 따라 조정될 수 있는 변동을 나타냈다. 이 관계식은 결정 계수, 평균 절대 오차 및 신뢰 오차에 의해 검증되었다. 특정 유형의 토양과 관련된 강수의 운동 에너지는 강우로 인한 침식의 가능성을 결정할 수 있다. The erosive potential of precipitation can be evaluated by the kinetic energy transferred to the soil by the impact of the rain drop. A kinetic energy rate of the rain drops was estimated by the disdrometer classifying impact signals. This equation in the form of power presented an adjustment measure between the rain rate and rainfall quantity of 97% and 95% for continental and maritime rains, respectively. The exponent of the power equation, initially, shows no dependence on the type of rainfall. However, the multiplicative factor presented variation, which can be adjusted according to rainfall events. This equation was validated by the coefficient of determination, the average absolute error and the confidence error. The kinetic energy of precipitation, associated to certain types of soil, will allow the determination of the potential of the erosion caused by the rains.
THE PERCEPTION OF ACTIVE LISTENING PRACTICE ON SOCIAL NETWORKS
Lídia Silveira Pina,Sandra Maria Correia Loureiro,Paulo Rita,Paulo Rita,Eduardo Moraes Sarmento,Ricardo G. Bilro,João Guerreiro 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07
The evolution of the internet led to a shift in the business operations environment, giving rise to a plethora of challenges and opportunities for companies. Social networks have become attractive to companies due to their interactive nature, not only facilitating conversations with consumers, but also increasing the possibility of enhancing the online consumer brand engagement. Additionally, social networks and online brand communities increased consumers’ possibility of developing an active role in companies’ decision-making process, through the creation of user generated content, together with the opinion sharing and directly information exchange with brands and other internet users. The main objective of this research is to ascertain whether the active listening practice can contribute, in some way, to the improvement of the relationship maintained between consumers and brands. The current study suggests the adaptation of the active listening practice on the online field, as an attempt to enhance the communication strategies held by brands. Hence, this research seeks to demonstrate that this practice can improve the consumer-brand relationship through the development of two qualitative studies, as main approach, where the findings extracted in the first study will be used as inputs to the second one.