http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Santos Ebinuma valeria Carvalho ),( Maria Francisca Simas Teixeira ),( Adalberto Pessoa Jr ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.6
This work aims at investigating the production of yellow, orange, and red natural colorants in a submerged culture of Penicillium purpurogenum DPUA 1275. For this purpose, different experimental conditions evaluating the effect of incubation time, type and size of in℃ulum, and different carbon and nitrogen sources were performed. Furthermore, the growth kinetics were obtained in the conditions of 108 spores/ml and 5 mycelia agar discs during 360 h. These experiments showed that 5 mycelia agar discs and 336 h promoted the highest yellow (3.08 UA400nm), orange (1.44 UA470nm), and red (2.27 UA490nm) colorants production. Moreover, sucrose and yeast extract were the most suitable carbon and nitrogen sources for natural colorants production. Thus, the present study shows a new source of natural colorants, which can be used as an alternative to others available in the market after toxicological studies.
( Ramon Souza Lino ),( Laura Souza Lagares ),( Caio Victor Coutinho Oliveira ),( Ciro Oliveira Queiroz ),( Lélia Lessa Teixeira Pinto ),( Luiz Alberto Bastos Almeida ),( Eric Simas Bonfim ),( Clarcson 한국운동영양학회 2021 Physical Activity and Nutrition (Phys Act Nutr) Vol.25 No.1
[Purpose] Sodium bicarbonate shows ergogenic potential in physical exercise and sports activities, although there is no strong evidence which performance markers show the greatest benefit from this supplement. This study evaluated the effects of sodium bicarbonate supplementation on time trial performance and time to exhaustion in athletes and sports practitioners. [Methods] A systematic review was conducted using three databases, including 17 clinical trials. Among these clinical trials, 11 were considered eligible for the meta-analysis according to the criteria for the assessment of methodological quality using the PEDro Scale. Time to exhaustion was assessed in six studies, while time trial performance was evaluated in five studies. [Results] A significant beneficial effect of supplementation on time to exhaustion was found in a random effects model (1.48; 95% confidence interval [CI], 0.49 to 2.48). There was no significant effect of supplementation on time trial performance in a fixed effects model (slope = -0.75; 95% CI, -2.04 to 0.55) relative to a placebo group. [Conclusion] Sodium bicarbonate has the potential to improve sports performance in general, especially in terms of time to exhaustion.
A Common fixed point theorem on ordered partial S-metric spaces and applications
Sima Soursouri,Nabi Shobkolaei,Sahaban Sedghi,Ishak Altun 강원경기수학회 2020 한국수학논문집 Vol.28 No.2
A common fixed point result for weakly increasing mappings satisfying generalized contractive type in ordered partial $S$-metric spaces are derived. Also as an application of our results we consider a couple integral equations.to guarantee the existence of a common solution.
A Particle-swarm-based Approach for Optimum Design of BELBIC Controller in AVR System
Sima Valizadeh,Mohammad-Reza Jamali,Caro Lucas 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
In this paper, Particle Swarm Optimization algorithm is applied to design an optimum intelligent controller based on brain emotional learning. BELBIC controller is tuned to improve the time domain parameters such as percent overshoot, steady state error, settling time and rise time of the step response of an Automatic Voltage Regulator. Also the convergence characteristic of fitness function averaged over the whole particles in each generation is investigated. PSO-BELBIC performance is compared with the classic PSO-PID controller.
Suppression of Glow Corona on Streamer and Influence of Thin Wire on its Inception
Sima, Wenxia,Fan, Shuochao,Yang, Qing,Wang, Qi The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.4
Glow corona is a kind of streamer-free corona that can suppress upward leaders in transmission lines. Thus, it has good application potential in lightning protection. This paper investigates its corona characteristics. The suppression characteristic of glow corona on streamer is studied in air gap under negative DC voltage by wrapping thin wires on the electrode. The effect of thin wire winding patterns on the gap breakdown voltage is analyzed. Results are considered to be attributed to the inception condition of glow corona. Thus an inception test of glow corona is also conducted, and the inception voltage is obtained. Results show that the inception voltage decreases with short winding pitch. Thus an investigation on the inception of glow corona influenced by thin wire is conducted, and an influential factor is proposed to evaluate the influence. The inception regular of thin wire glow corona presented in this paper has certain reference value for the application of glow corona in transmission lines.
Sima Nikneshan,Mohamad Sharafi,Naghmeh Emadi 대한영상치의학회 2013 Imaging Science in Dentistry Vol.43 No.3
Purpose: This study assessed the accuracy of linear and angular measurements on panoramic radiographs taken at different positions in vitro. Materials and Methods: Two acrylic models were fabricated from a cast with normal occlusion. Straight and 75 mesially and lingually angulated pins were placed, and standardized panoramic radiographs were taken at standard position, at an 8downward tilt of the occlusal plane compared to the standard position, at an 8upward tilt of the anterior occlusal plane, and at a 10downward tilt of the right and left sides of the model. On the radiographs, the length of the pins above (crown) and below (root) the occlusal plane, total pin length, crown-to-root ratio, and angulation of pins relative to the occlusal plane were calculated. The data were subjected to repeated measures ANOVA and LSD multiple comparisons tests. Results: Significant differences were noted between the radiographic measurements and true values in different positions on both models with linear (P⁄0.001) and those with angulated pins (P⁄0.005). No statistically significant differences were observed between the angular measurements and baselines of the natural head posture at different positions for the linear and angulated pins. Conclusion: Angular measurements on panoramic radiographs were sufficiently accurate and changes in the position of the occlusal plane equal to or less than 10had no significant effect on them. Some variations could exist in the pin positioning (head positioning), and they were tolerable while taking panoramic radiographs. Linear measurements showed the least errors in the standard position and 8upward tilt of the anterior part of the occlusal plane compared to other positions.