Study on Effect of Massage Technique based on Chaos Theory

Ping Feng,Xiao-li Wang,Chao Zhang,Wei Sun,Dai-min Chen 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.12

According to the mechanism of EMG signal, we know that the sacrificial electrical signal is with weak signal, low frequency, alternating, nonlinear and non-stationary characteristics. Nonlinear analysis includes higher order spectral analysis and fractal and chaos analysis.Chaos theory is one of the main parts of nonlinear science, and the electrical signal of the surface has a strong randomness, so we could consider the nonlinear analysis of EMG signals from the perspective of chaos. We mainly studied on the nonlinear analysis algorithm of EMG signal detailedly in this paper. Experiments show that,according to the quantitative analysis of several important parameters of rolling massage with chaos theory, we can measure objectively the action situation of related muscle groups in the operation course, then guide the professional massage students to understand the norms of operation in training of operation and help to lead their manipulation to the best power structure.

Monte Carlo Method and Quantile Regression for Uncertainty Analysis of Wind Power Forecasting Based on Chaos-LS-SVM

Xin Zhao,Chao Ge,Fangfang Ji,Yajuan Liu 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.11

In the paper, the chaos least squares support vector machine algorithm (Chaos-LS-SVM) is applied. To conduct uncertainty analysis of wind power forecasting, two forecasting algorithms of the probabilistic uncertainty analysis based on the Monte Carlo method and the quantile regression analysis based on Chaos-LS-SVM are discussed. The effectiveness and superiority of the two uncertainty analysis methods in the confidence level of 95%, 90%, and 85% are discussed by simulation analysis, and the confidence interval is given in the corresponding confidence level. The prediction interval coverage probability (PICP) and the prediction interval normalized average width (PINAW) of the two uncertainty methods are compared. In the time scale of 1h-ahead, 4h-ahead, and 6h-ahead, the probabilistic uncertainty analysis based on the Monte Carlo method is suitable. In the time scale of 24h-ahead, the quantile regression analysis based on Chaos-LS-SVM is superior.

한국어 명사절 내포문의 중국어 대응 관계 연구 ― 한·중 병렬 말뭉치를 바탕으로

동초 ( Dong¸ Chao ) 한국중국학회 2021 중국학보 Vol.97 No.-

본 논문은 명사절 내포문에 초점을 맞추어 한국어와 중국어 내포문의 대응 관계에 드러나는 차이를 문장구조적 측면에서 살펴보는 것을 목적으로 한다. 내포문은 한국어와 중국어에 모두 존재하지만 상이한 언어 유형에 속하기 때문에 문장구조적 차이가 많다. 이러한 문장구조적 차이가 어떠한 조건 하에서 나타나는지를 살펴보기 위하여 본 연구에서는 한국어 약 43만 어절, 중국어 약 106만자, 도합 149만 형태 단위 규모의 연구용 한·중 병렬 말뭉치를 구축하였다. 말뭉치에서 추출한 용례를 분석한 결과, 한국어 명사절이 담당하는 문장성분은 중국어와 같은 문장성분으로 대응하지 않은 비율이 높게 나타났으며, 이러한 대응 관계에서 중국어 단문과 복문의 대응 종류가 확인되었다. 또한 중국어 단문과 대응의 관계가 나타난 특징을 살펴보면 한국어 안은문장의 서술어가 중국어의 품사 대응과 일치하지 않는 것으로 확인되었다. 특히 한국어 내포문 안은문장의 서술어가 형용사일 때 중국어에서 동사로 대응되는 경우가 많다는 것을 알 수 있었다. 그리고 중국어 복문과 대응의 관계가 나타나는 특징은 한국어 명사절의 문장성분은 부사어가 되는 것이 대부분으로 나타났다. 이와 같은 대응 차이를 이해할 시 중국인 학습자는 한국어 명사절을 대치하여 사용하는 문장구조를 예측할 수 있고 명사절 내포문의 사용 빈도를 높일 수 있을 것이다. This paper takes noun clause embedded sentence as the research object, constructs a 1.49 million Korean-Chinese parallel corpus, and analyzes the sentence structure differences of noun clause embedded sentence in Korean and Chinese. The analysis results show that the ratio of non-correspondence is higher than that of one-to-one correspondence in Chinese in terms of sentence constituents of noun clause in Korean. In the non-corresponding relationship, there are two types of corresponding cases including Chinese single sentence correspondence and compound sentence correspondence. The corresponding ratio for single sentences is significantly higher than that for compound sentences. The feature of Korean sentence pattern corresponding to the Chinese single sentence is that the predicate of main clause collocating with noun clause is mainly adjective. This type of adjectives is used as a verb in Chinese. The difference in part of speech leads to the occurrence of non-correspondence relationship. The feature of Korean sentence pattern corresponding to the Chinese compound sentence is that noun phrase acts as adverbials which are divided into two sentences in Chinese including main clause and embedded clause for correspondence. By studying the differences in correspondence between Korean and Chinese embedded sentences, it can be predicted that Chinese learners are influenced by their mother tongue, and the sentence structure replaced for noun clause embedded sentence is beneficial to increase the usage frequency of noun clause embedded sentence.

Effects of Long-Term Fertilizer Practices on Rhizosphere Soil Autotrophic CO₂-Fixing Bacteria under Double Rice Ecosystem in Southern China

( Haiming Tang ),( Li Wen ),( Lihong Shi ),( Chao Li ),( Kaikai Cheng ),( Weiyan Li ),( Xiaoping Xiao ) 한국미생물생명공학회 2022 Journal of microbiology and biotechnology Vol.32 No.10

Soil autotrophic bacterial communities play a significant role in the soil carbon (C) cycle in paddy fields, but little is known about how rhizosphere soil microorganisms respond to different long-term (35 years) fertilization practices under double rice cropping ecosystems in southern China. Here, we investigated the variation characteristics of rhizosphere soil RubisCO gene cbbL in the double rice ecosystems of in southern China where such fertilization practices are used. For this experiment we set up the following fertilizer regime: without any fertilizer input as a control (CK), inorganic fertilizer (MF), straw returning (RF), and organic and inorganic fertilizer (OM). We found that abundances of cbbL, 16S rRNA genes and RubisCO activity in rhizosphere soil with OM, RF and MF treatments were significantly higher than that of CK treatment. The abundances of cbbL and 16S rRNA genes in rhizosphere soil with OM treatment were 5.46 and 3.64 times higher than that of CK treatment, respectively. Rhizosphere soil RubisCO activity with OM and RF treatments increased by 50.56 and 45.22%, compared to CK treatment. Shannon and Chao1 indices for rhizosphere soil cbbL libraries with RF and OM treatments increased by 44.28, 28.56, 29.60, and 23.13% compared to CK treatment. Rhizosphere soil cbbL sequences with MF, RF and OM treatments mainly belonged to Variovorax paradoxus, uncultured proteobacterium, Ralstonia pickettii, Thermononospora curvata, and Azoarcus sp.KH33C. Meanwhile, cbbL-carrying bacterial composition was obviously influenced by soil bulk density, rhizosphere soil dissolved organic C, soil organic C, and microbial biomass C contents. Fertilizer practices were the principal factor influencing rhizosphere soil cbbL-carrying bacterial communities. These results showed that rhizosphere soil autotrophic bacterial communities were significantly changed under conditions of different long-term fertilization practices Therefore, increasing rhizosphere soil autotrophic bacteria community with crop residue and organic manure practices was found to be beneficial for management of double rice ecosystems in southern China.

Natural gas hydrate occurrence and detection in the Sea of Okhotsk

진영근(Jin, Young-Keun),CHAOS Scientific Party, CHAOS 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.11

The Sea of Okhotsk is the unique area providing the highest methane production rate of the northern hemisphere. The area of focused fluid venting offshore the NE Sakhalin continental slope was investigated during the CHAOS (Hydro-Carbon Hydrate Accumulations in the Okhotsk Sea) expeditions onboard of RV Akademik Lavrentyev In 2003, 2005 and 2006. The International Research Project CHAOS (Russia-Korea-Japan) aimed at the study of gas hydrate formation processes associated with the fluid venting in the Sea of Okhotsk. Several new gas hydrate accumulations were discovered during the cruise. Hydrate-associated structures have been named as KOPRI, VNIIOKeangeologia, POI and KIT (the names of cruise participant institutes) Some of hydrate-bearing cores contain big amount of gas hydrates: massive gas hydrate layers (up to 35cm thick) were recovered. The shallowest submarine gas hydrate accumulations in the world (at the depth less then 400m) were discovered during the cruise.

Early Intervention with High-Dose Steroid Pulse Therapy Prolongs Disease-Free Interval of Severe Alopecia Areata: A Retrospective Study

( Chao Chun Yang ),( Chun Te Lee ),( Chao Kai Hsu ),( Yi Pei Lee ),( Tak Wah Wong ),( Sheau Chiou Chao ),( Julia Yu Yun Lee ),( Hamm Ming Sheu ),( Wenchieh Chen ) 대한피부과학회 2013 Annals of Dermatology Vol.25 No.4

Background: Spontaneous recovery of severe alopecia areata is rare and the condition is difficult to treat. Objective: The aim of this study is to investigate and compare the effects and safety of steroid pulse therapy between oral and intravenous administrations between 1999 and 2010 at the Department of Dermatology, National Cheng Kung University Hospital. Methods: Data were retrospectively retrieved. A satisfactory response was defined as more than 75% hair regrowth in the balding area. Results: A total of 85 patients with more than 50% hair loss were identified and treated, with an overall satisfactory response rate of 51.8%. The mean follow-up time was 37.6 months, with a relapse rate of 22.7%. Patients with alopecia areata (hereafter, AA) of recent onset within one year showed higher response rates (p< 0.001) and lower relapse rates compared to patients with AA persisting for more than 1 year. Further, even in patients with alopecia totalis, alopecia universalis or ophiasis type, early treatment resulted in a satisfactory response rate of 47% among the treated patients. In general, oral therapy was as effective and well-tolerated as intravenous therapy. Conclusion: The response rate is determined by disease severity and time of intervention, not by the administration form of steroid pulse therapy. Oral steroid pulse therapy can be considered as the first-line treatment for patients with severe AA of recent onset within one year. (Ann Dermatol 25(4) 471∼474, 2013)

Chaotic Dynamics of a Three-phase Clock-driven Oscillator with Dual Voltage Controllability

Ji Chao Zhou,송한정 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.61 No.8

In this work, we study a novel dual voltage controlled chaotic oscillator using a three-phase clock. The chaotic oscillator is based on two nonlinear functions which are needed for chaotic signal generation. The proposed chaotic circuit consists of non-overlapping clock driven three MOS (Metal Oxide Semiconductor) switches for S/H (sample and hold), a level shifter and two nonlinear functions for nonlinearity in the feedback. After optimizing of nonlinear functions for chaotic signal generation, the proposed circuit was simulated with SPICE (Simulation Program with Integrated Circuit Emphasis) program using a 0.6 um CMOS (complementary metal oxide semiconductor) process parameter. For various control voltages, its chaotic dynamics such as time waveform, bifurcation diagram and state transition diagram were analyzed. We confirmed that the circuit can generate discrete chaotic signals in specific control voltages. This circuit expected to be utilized for various chaos applications.

Dietary Lactobacillus plantarum GB805 supplementation improves growth performance and nutrient digestibility in weaning pigs

Liu, Wen Chao Liu, Jung Sun Kang and In Ho Ki Chao,Kang, Jung Sun,Kim, In Ho Agricultural Research Communication Center 2018 Indian Journal of Animal Research Vol.52 No.-

<P>A total of 60 weaned pigs with initial body weight (BW) of 8.51 ± 0.42 kg (28 d of age) were randomly divided into 2 groups of 30 each consisted of 6 pens with 2 gilts and 3 borrows and supplemented (treatment) 5.3×108 cfu/kg Lactobacillus plantarum GB805 in addition to basal diet offered during d 0 to 14 and d 15 to 42 (control). During the total trial period or different phases of trial, pigs fed L. plantarum diet had a higher (P less than 0.05) ADG, ADFI and feed efficiency. At the end of experiment, dietary L. plantarum supplementation improved (P less than 0.05) the apparent total tract digestibility of dry matter, nitrogen and the fecal Lactobacillus populations (P less than 0.05) while the fecal E.coli populations were decreased (P less than 0.05). In conclusion, dietary supplementation of L. plantarum GB805 had positive influence on growth rate, nutrient digestibility and gut microbial balance and its supplementation recommended to weaning pigs.</P>

Study on Calculation Method of Long Term Deformation of RAC Beam based on Creep Adjustment Coefficient

Chao Liu,Zhenyuan Lv,Chao Zhu,Guoliang Bai,Yu Zhang 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.1

The creep shrinkage of concrete is an important factor in the long-term deformation of concrete structures. It is also a key link for solving long-term deformation calculation accuracy and complex calculation forms. In this paper, a 1200-day long-term deformation test was conducted on beams with 0%, 50%, and 100% substitution ratios of recycled coarse aggregate. Meanwhile, based on the principle of virtual work, the creep coefficient of recycled concrete is introduced into the calculation of additional curvature of the beam section, and the formula for calculating the long-term deformation of recycled concrete is established. According to the size of recycled coarse aggregate, through the calculation of creep and shrinkage of concrete, the regeneration adjustment coefficient of concrete creep and shrinkage, the calculation results into three typical model of ordinary concrete creep and shrinkage, creep and shrinkage of concrete and regeneration model of deformation calculation of long period, the calculated and experimental results agree well; based on this, the deflection increase coefficient is proposed, which simplifies the long-term calculation formula. It not only can meet the calculation accuracy requirements, but also can be easily adapted to engineering promotion.

Pseudomyogenic Hemangioendothelioma in a 30-Year-Old Man: A Rare Case Report

( Chao-yu Liao ),( Chao-kuei Juan ),( Chi-shun Yang ),( Yi-ju Chen ) 대한피부과학회 2019 Annals of Dermatology Vol.31 No.5