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MIND 식단교육을 이용한 치매예방 영양프로그램이 고위험 치매노인의 인지기능 변화에 미치는 영향
송재은 ( Jaeeun Song ),최성혜 ( Seong Hye Choi ),홍창형 ( Chang Hyung Hong ),정지향 ( Jee Hyang Jeong ),문소영 ( So Young Moon ),나해리 ( Hae Ri Na ),박희경 ( Hee Kyung Park ),박유경 ( Yoo Kyoung Park ) 대한영양사협회 2021 대한영양사협회 학술지 Vol.27 No.4
This study examined the effect of the Mediterranean-DASH Intervention for Neurodegenerative Delay (MIND) diet of the Korean multi-domain dementia prevention program on the cognitive functions of the elderly with dementia risk factors. We developed the program including nutrition, exercise, cognitive training, vascular disease prevention, and motivation. One- hundred and fifty-three participants aged 60∼79 years with at least 1 dementia risk factor were randomly assigned in a 1:1:1 ratio to the facility-based intervention (FMI), home-based intervention (HMI), and the control group. The nutrition education program consisted of 10 classes over 24 weeks: the FMI received 7 group sessions and three 1:1 sessions, the HMI received 4 group sessions and three 1:1 sessions with 3 homework sessions. The Nutrition Quotient for Elderly (NQ-E) and the Mini Nutritional Assessment (MNA) were used to evaluate nutritional status. The Repeatable Battery for the Assessment Neuropsychological Status (RBANS), Korean Mini-Mental State Examination (K-MMSE), and the Cognitive Complaint Interview (CCI) were used to evaluate cognitive functions. A total of 136 people completed the program with an 11.1% dropout rate. The NQ-E (P=0.009) and RBANS (P=0.001) scores significantly increased in the FMI (N=45) and HMI (N=49) groups compared to the control group (N=42) after the study. The changes in the score of MNA and CCI did not differ significantly between groups. In conclusion, the nutritional intervention which focused on the MIND diet as a part of a multi-domain intervention program had a positive effect on the improvement of healthy eating habits and cognitive function scores in the high-risk dementia group.
송재은(Jaeeun Song),이정근(Jungkeun Rhee) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
As many diesel engines are utilized in middle class or compact cars, the demands for quiet and good sound quality in diesel engine also increase more and more. High combustion pressure in idle and light load acceleration mode makes it difficult to make low noise like that of gasoline engine, but the sound quality can be enhanced by introducing DOE. For the complete improvement of diesel engine sound quality, it is necessary to consider the combustion and mechanical noise. But it is thought that the reduction of the combustion noise can show us a short way to get full improvement. The most important factor to be considered in this study is to find the optimum combustion conditions without any deterioration of emission level and drivability. This paper includes the DOE method as a tool to find out the optimized combustion conditions, which is possible to realized better sound quality in idle through that method without deteriorating the important two limited conditions.
연소 해석법을 이용한 Idle Irregular Shake 저감 연구
송재은(Jaeeun Song),이기성(Kisung Lee),김영권(Youngkwon Kim),윤재원(Jaewon Youn) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This study summarizes findings from recent efforts to better understand idle quality, including lumpiness (erratic shake). It combines new observations with previously known factors to provide a more complete view of the idle shake mechanism and the perception of the shake by occupants. The following discussion demonstrates the system nature of idle quality. Much of the data were processed by the combustion analysis method, which splits the idle vibration into its periodic and random components. This partitioning, coupled with several key observations of experimental data by various personnel, has led to a better understanding of idle lumpiness. Combining the combustion analysis method with cylinder pressure data also led to the calculation of the combustion torque spectra (random and periodic components) and to in-situ Frequency Response Functions. These measures quantify the engine’s combustion excitation, and the related vehicle sensitivities, respectively. Their characteristics explain trends first seen in the combustion analysis results. Using these techniques, an allocation method is described to ensure attainment of good idle quality.
송재은(Jaeeun Song),이정근(Junkeun Rhee) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
All the automotive makers make efforts to meet the customer’s desire which is being varying very fast. But the limitation for development period and cost makes it very difficult that automotive makers cannot have enough time and chance to get perfect launch. To compensate these problems, it is necessary to utilize these data in advance which can be complaints from customer after launch when the development concept and target is considered. For this purpose, the information from each domestic warranty center and the official data from marketing related institute can be useful. The analyzed data based on various case studies can make it possible to give clues for items to be checked on the way of developing or to cover the unfiltered points due to the lack of number of samples. Through this process, automotive makers can check the item to be considered what could not be improved by some kinds of reasons during the past launch and can use this as a compensative data to cover this methodical defect. In this study, this empirical study can be introduced and can be proved when the makers want to use this during preview for the next launch.