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Sleep Patterns, Insomnia, and Well-Being Among Female High School Students: A Population-Based Study
Tufeq Zakya Ageed,Ziyab Aziza Mohammed,Ahmed Bushra Abdulla,Rahho Mohmmed Khuder Nafea,Abdulah Deldar Morad 대한수면학회 2023 sleep medicine research Vol.14 No.2
Background and Objective The role of insomnia in the well-being of school children has not been sufficiently examined in the literature. We aimed to explore the prevalence of clinical insomnia and its relationship to the health-related quality of life among female high-school students.Methods In a cross-sectional study in 2018, 300 students from five female high-schools in the Kurdistan Region were randomly included, regardless of age and other socio-demographic characteristics. The Personal Wellbeing Index, General Health Questionnaire–12, and Insomnia Severity Index were used to measure the personal and general well-being, and insomnia of school children, respectively.Results The students were categorized into short sleepers (2.0%), normal sleepers (51.0%), and long sleepers (47.0%), and age range is 14–19 years (mean: 16.22 years). The mean value of general well-being and insomnia severity was 6.89 and 11.42, respectively. We found that 25.0% of the students had no clinically significant insomnia, 47.7% had subthreshold insomnia, 24.0% had clinically moderate insomnia, and 3.3% had clinically severe insomnia. The mean value of the personal well-being of students was 7.91 out of 10. The mean value of personal well-being was significantly lower among students with more severe insomnia. The mean values of personal well-being were 8.61 (no clinically significant insomnia), 7.87 (subthreshold insomnia), 7.49 (clinically moderate insomnia), and 6.91 (clinically severe insomnia). The worse sleep situations and smoking were the main independent controlling factors for lower personal well-being.Conclusions The study documented that female students are at risk of being clinical insomniacs, and are at risk of the development of lower well-being.
金永權 김천대학교 1985 김천대학교 논문집 Vol.6 No.-
Author practiced total 14,993 cases of AFB stain for five years from Jan 1, 1979 to Dec 31, 1983 at clinical laboratory Seoul Paik Hospital, Inje medical College. Author obtained 14,74 cases of AFB positive among a total 14,993 clinical specimens. Author have studied (1)Numbers of AFB stain from various specimen sources (2)AFB positive rate by different specimen sources (3)Age and sex distribution of AFB patients The results are summarized as follows: 1.Numbers of specimen sources requested for AFB stain are; sputum 12,498 cases(83.7%), urine 1,051 cases(7.0%), CSF 457 cases(3.0%) etc, among total 14,993 cases. 2.AFB positive rate is 9.9%(1474/14,993 cases) AFB positive rate in different specimen sources are; Pus 12.8%, sputum 11.1%, stool 4.0%, others 3.4% respectively. 3.AFB positivity in sexes are; 61.1% in male, 38.9% in female 4.Age distribution of AFB positivity are; 25-29 age groups 2.10% 30-34 age groups 0.82, 20-24 age groups 1.93% etc.
김재영(Management Age) 한국경영학회 2018 한국경영학회 통합학술발표논문집 Vol.2018 No.8
현대 경제는 산업간 경계가 해체되며 기존의 산업구분이 더 이상 의미가 없어지고 있다. 이에 따라 개인은 다양한 직종에 종사할 수 밖에 없는 것이 현실이며, 여러 직종에 종사한 직원을 기업에서 채용하는 기준에도 영향을 미치게 되고 있다. 기존에 연구된 OECD, ATC21S, 교육부, WEF 등의 인재역량을 분석하여, 인재역량의 변화에 대하여 분석하였다. 분석 결과 개인의 능력이 중요하게 평가되고 있으며, 상대적으로 타인과의 협력 등 사회적인 역량에 대한 부분은 중요시하지 않음을 확인하였다. 하지만 이는 미래의 고용구조를 고려하지 않은 모델로 미래에는 상호작용이 많은 고유한 인적 역량을 제공하는 산업과 인간의 지혜와 협동을 요구하는 산업은 고용 비중이 증가하고 이외의 산업은 고용 비중이 감소할 것으로 예측 되기에 산업간의 경계가 급격하게 해체되고 있는 시점에서 적합하다고 볼 수 없으며, 미래의 산업구조에 대한 변화를 고려하여 필요한 인재의 역량을 도출하는 후속연구가 필요하다.
Lenis, Nico P.,Jongbloed, Age W. Asian Australasian Association of Animal Productio 1999 Animal Bioscience Vol.12 No.2
In the paper insight is given in the legislation policy to restrain environmental pollution by pig husbandry, focused on The Netherlands (Mineral Accounting System). Besides, nutritional measures are presented to reduce environmental pollution by lowering excretion of N and P, emphasizing (multi) phase feeding, the use of low protein, synthetic amino acids supplemented diets, phytase and its effect on phosphorus and calcium digestibility, its interaction with phytic acid and proteins, and the environmental impact of the use of phytase in pig diets. Also, nutritional means are indicated to reduce ammonia volatilization from pig operations. It is concluded that nutrition management can substantially contribute to reduction of N and P excretion by pigs, mainly by lowering dietary protein levels, (multi) phase feeding and the use of microbial phytase, and that the use of phytase on a large scale in The Netherlands has a tremendous environmental impact. In 20 years the excretion of P in growing-finishing pigs has more than halved. Ammonia emission from manure of pigs can be reduced substantially by lowering dietary protein content, but also by including additional non-starch polysaccharides in the diet. A very promising method to reduce ammonia emission is to manipulate dietary cation-anion difference, e.g. by adding acidifying salts to the diet, which will lower pH of urine substantially. Further research is desirable. This also applies to determining dietary factors influencing the odour release from manure. Finally, some speculation on the future of pig farming from an environmental viewpoint is presented.
Bottom Hole Pressure Control for Oil Well Drilling using Model Reference Adaptive Control
Henrik Anfinsen,Jon Age Stakvik,Ole Morten Aamo 제어로봇시스템학회 2017 제어로봇시스템학회 국제학술대회 논문집 Vol.2017 No.10
In this paper, we use a recently derived model reference adaptive controller (MRAC) for controlling the bottom hole pressure (BHP) in an oil well. The proposed scheme uses the propagation delay in the well as part of the design, while continuously adapting to uncertain frictional terms in the system. The proposed scheme is through simulations on an industrial hydraulic MPD simulator compared with a conventional PI controller for BHP set-point changes. In fast set-point changes the MRAC controller exhibits less tracking error and less oscillations than the conventional PI solution.
Martin G. W.,Kumar C. Agees 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.3
Switched Reluctance Motor (SRM) is an electrical motor which operates by a reluctance torque that has stator and rotor salient poles. It also has a simple confi guration and reasonable power electronics necessity for both AC and DC machines within adjustable-speed drives. The problem working on it is, SRM with doubly salient poles introduce a torque ripple in its output which leads to deteriorated performance on speed control. In this proposed work, torque ripple reduction and speed control of SRM is implemented, utilizing an asymmetrical converter with PI-PWM controller with the aid of Bio-inspired algorithms. By utilizing the best value of fl ux, torque ripple and integral square error of speed and settling times, controller design is performed. The proposed research work compares three optimization algorithms namely Crow Search Algorithm, an Improved Ant Lion Optimization Algorithm and Modifi ed Chaotic Starling Particle Swarm technique to control the speed and torque reduction of SRM in aerospace applications. To obtain the optimal parameter values, optimization techniques are introduced and the optimized controller results are compared with other conventional controller results. In normal operation, the engine operates with two phases simultaneously, but it is modelled to meet the load specifi cation, which is single and double phase faulty. Detection of fault gives a great outcome in control of an electrical drive system. Reduction of faulty operation time leads to better motor lifetime that is obtained by early detection of a fault. This paper presents how the fi vephase switched reluctance motor is designed to meet the needs of fl ap actuators in mid-sized aircraft. Electrical systems are modelled to provide the right functionality at the right time in advanced aircraft. However, requirement of power for the landing gear and secondary fl ight control only a short duration. The system is powered on and off as required, thus preserving power. Control performance and fault analysis were verifi ed by the results of the MATLAB simulation. Experiments have been carried out more eff ectively to compare the results obtained with those of simulations.