A Novel Active Current Disturbance Method Based on Discrete Wavelet Analysis

Wu Tiezhou,Xiong Jinlong,Wu Xiaomin,Luo Meng 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.12

Islanding detection method of active current disturbances in three-phase photovoltaic-to-grid system makes the common connection point (PCC) voltage appear high frequency components on account of load variation, the surge current occurrence and other factors. This high frequency component cause islands misjudgment. Using Db10 wavelet to detect and analysis PCC’s voltage high-frequency components on real-time based on the active current disturbances principle. And selecting an effective wavelet domain values as the voltage harmonic detection amount islanding detection. Islands simulation test is conducted in the case of the inverter output power and load input power to match, the test results show that this method can quickly detect islanding, and effectively prevent pseudo-island phenomenon of false positives.

A Study of “Nuo” Culture in Flower Drum Opera in Hunan Province

( Wu Meng ),( Zheng Yujie ) 한국무용연구학회 2020 한국무용연구회 국제학술발표논문집 Vol.2020 No.-

Hunan Flower Drum Opera is one of the Chinese opera arts, from the formation of ancient Chinese opera, it is inseparable from the ancient Chinese totem worship, religious ritual activities. With the progressive development of ancient Chinese civilization, the court music and dance under the culture of ritual and music, as well as religious rituals under the “Nuo(傩)” culture, although used by the ruling class to maintain and consolidate political interests, coupled with a political coat. But it is precisely this is the systematic, integrity of the preservation of the existence. Along with the phenomenon of "the collapse of rites and music," the art and culture of the ruling class moved downward, from court to folk, fusing with folk songs and dances to gradually form new art forms. The idea of ritual and music and the “Nuo” culture is also a new art bearer, along with the development of a new art form to spread the carrier. Until the Yuan, Ming and Qing dynasties, the ancient Chinese court music and dances and folk songs and dances were integrated into the opera and became the mainstream art form of the society at that time. In particular, dance has gradually become marginalized in the lives of mainstream social groups, and it is difficult to see classical dance works passed down from generation to generation. Although the art of opera indirectly carries the ancient Chinese dance, is a kind of living existence of ancient Chinese dance, and makes it inherit and develop, but it also makes the ancient Chinese dance form to demise and decline. The study of the formation of Hunan Flower Drum Opera is generally based on Chinese opera. Starting from the formation and development of the opera, a comparative study of the opera's artistic styles, performance forms, singing lyrics, and other aspects is presented. However, in my opinion, although Hunan Flower Drum Opera is an operatic art, its formation is different from that of operatic art.The main reasons are as follows: (1) According to Yang Enshou during the Guangxu period of the Qing Dynasty, "Xuciyucongji" recorded that “湘中岁首有所谓灯戏者,初出两伶,各执骨牌二面,对立而舞, 各尽其态。”According to qianlong thirty years "Chenzhoufuzhi" records “元宵前数日,城乡多翦纸为灯,或龙、或狮子,及各鸟兽状。十岁以下童子,扮演采茶、秧歌诸故事。至十五夜,笙歌鼎沸,盈街达旦,士女聚观,统曰闹元宵。是日作油染元宵团相馈遗。舞灯之后,又各聚赀唱梨园,名曰灯戏。”The origin of Hunan Flower Drum Opera is the combination of Hunan folk songs and dances with opera. Therefore, the art of opera can only be a "tributary" and not a "source," but a folk opera art that has been absorbed and borrowed under the influence of opera. (2) In the Han Dynasty, Wang Yi recorded in "Chucizhangju": "昔楚国南郢之邑,沅湘之间,其俗信鬼神而好祀。其祀必作歌舞以乐诸神。" In China's historical development, Hunan experienced the Spring and Autumn and Warring States periods, "the land of Chu", but also the ancient Chinese "Nuo culture" most prevalent period. The “Nuo” culture of ancient Chinese cultural ideas, social art forms have a direct impact on the role. Therefore, this study explores the development of Hunan Flower Drum Opera from a longitudinal historical perspective, using the general timeline of Chinese “Nuo” culture as a starting point for interpreting the development of Hunan Flower Drum Opera. Locate Hunan, China to study the flower and drum opera, and explore the artistic characteristics left behind by the influence of ancient Chinese “Nuo” culture. At the same time on the Hunan Flower Drum Opera in “Nuo” cultural exploration, not only can the ancient Chinese court music and dance, folk songs and dances of the formation of the origin, style characteristics to explain the analysis. It also provides a new research basis for the inheritance and development of contemporary Hunan flower drum opera.

Effects of Bedding Material Composition in Deep Litter Systems on Bedding Characteristics and Growth Performance of Limousin Calves

Meng, J.,Shi, F.H.,Meng, Qingxiang,Ren, L.P.,Zhou, Z.M.,Wu, H.,Zhao, L.P. Asian Australasian Association of Animal Productio 2015 Animal Bioscience Vol.28 No.1

The objective of this study was to evaluate the effects of different litter mixture compositions on bedding system temperature, pH and volatile fatty acid and ammonia-N ($NH_3$-N) content, and the serum physico-chemical parameters and growth indices of calves. Thirty-two Limousin calves ($280{\pm}20kg$) were randomly assigned to four groups (n = 8 for each group) according to the bedding system used: i) control with soil only (CTR); ii) mixture with 50% paddy hulls (PH), 30% saw dusts (SD), 10% peat moss (PM) and 10% corn cobs (CC) (TRT1); iii) mixture with 15% PH, 15% SD, 10% PM, 40% CC, and 20% corn stover (CS) (TRT2); iv) mixture with 30% PH, 10% PM, 40% CC, and 20% CS (TRT3). The litter material combinations of different treatments were based on the cost of bedding system materials in China. The cost of four treatments from low to high: Control<TRT1<TRT2<TRT3. The control was no-cost treatment. The diet consisted of 60.8% silage and 39.2% concentrate (dry matter [DM] basis). The $NH_3$-N level (271.83 to 894.72 mg/kg) was lowest for TRT1 (p<0.0001) and highest for TRT2 (p<0.0001). The acetate, propionate and butyrate levels were highest for the control group (p<0.0001). In all the groups, the pH value (6.90 to 9.09) increased at the beginning and later remained stable at below 9.09. The temperature of deep litter increased at the first week and reached the maximum ($42.1^{\circ}C$) on day 38. 3,5,3'-Triiodothyronine ($T_3$) levels in the TRT1 group animals (p<0.0001) were lower than those in the control and TRT2 animals. 3,5,3',5'-Tetraiodothyronine ($T_4$) in the TRT1 group (p = 0.006) was lower than that in the other treatment groups. Cortisol (COR) in the control and TRT1 group was lower (p<0.0001) than that in the TRT2 and TRT3 groups. Corticosterone (CORt) in the control group was higher (p<0.0001) than that in the treatment groups. The findings indicate that the deep litter bedding systems provided better conditions for animal health and growth performance compared with the control system. Furthermore, the litter composition of TRT1 was found to be optimal among the three treatment groups.

Training-free neural architecture search: A review

Wu Meng-Ting,Tsai Chun-Wei 한국통신학회 2024 ICT Express Vol.10 No.1

The goal of neural architecture search (NAS) is to either downsize the neural architecture and model of a deep neural network (DNN), adjust a neural architecture to improve its end result, or even speed up the whole training process. Such improvements make it possible to generate or install the model of a DNN on a small device, such as a device of internet of things or wireless sensor network. Because most NAS algorithms are time-consuming, finding out a way to reduce their computation costs has now become a critical research issue. The training-free method (also called the zero-shot learning) provides an alternative way to estimate how good a neural architecture is more efficiently during the process of NAS by using a lightweight score function instead of a general training process to avoid incurring heavy costs. This paper starts with a brief discussion of DNN and NAS, followed by a brief review of both model-dependent and model-independent training-free score functions. A brief introduction to the search algorithms and benchmarks that were widely used in a training-free NAS will also be given in this paper. The changes, potential, open issues, and future trends of this research topic are then addressed in the end of this paper.

Poster Session : PS 0589 ; Psychiatry ; Holistic Care Unit Improves Access Block in Emergency Department in Taiwan

( Meng Chieh Wu ),( Hsin Kai Huang ),( Chun Cheng Zhang ),( Li Sheng Chang ),( Yung Ze Cheng ),( Chien Chin Hsu ),( Kao Chang Lin ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Emergency department (ED) overcrowding is a problem in many countries including Taiwan. Access block refers to a situation where patients in the emergency department requiring inpatient care are unable to gain access to appropriate hospital beds within a reasonable time frame (more than 8 hours total time in the emergency department). Access block is one major reason of ED overcrowding. Methods: A new holistic care unit was established in our medical center in Taiwan in July 2012, with the attending physicians including internal medicine physicians and a neurologist. The patients who required hospitalized treatment were referred to internal medicine physicians in the emergency department. The new department was comprised of seven experienced medical attending physician to take care of the patients directly, with 8-hour duty work shifts within 24 hours, in collaboration with emergency physicians, radiologists, nurses, social workers and case managers to form a team. This team had similar three-shift work duty, education and training programs, and they shared medical devices and resources. If beds in the intensive care unit or ward are not available immediately, procedures and treatment can be performed in the holistic care unit. The pediatric patients were excluded from this study. Results: In total, 26,623 patients were admitting to ward from our emergency department from August 2011 to July 2012, and 23,790 patients from August 2012 to July 2013. The rate of access block decreased from 55.29% to 50.01% ( p < 0.01) after holistic care unit was established. The mean time of ED length of stay was also improved from 18.04 hours to 15.43 hours ( p < 0.01). Conclusions: The newly established holistic care unit in our hospital improved the quality of medical care, not only physiologically but also psychologically.

Effect of Shadow Banking Activities on Firm Risk and Performance: Entrusted Loan Evidence from Chinese Listed Firms

Meng-Wen Wu,Xiaoyan Wang,Sijia Qiao,Chung-Hua Shen,Juan Wang 한국증권학회 2022 Asia-Pacific Journal of Financial Studies Vol.51 No.2

This study investigates the effect of non-financial firms’ activities in shadow banking on firm risk and performance. Using manually collected data of entrusted loans from Chinese listed firms, we find that lending firms’ bankruptcy risk and performance increases from their engagement of entrusted loan businesses in the year the loans are issued and in the following year. Further, firms’ risk increases and performance improves significantly when firms are financially healthy, financially constrained, and non-state-owned. Overall, our findings provide policy implications that the risk of shadow banking activities must be cautious.

A Study on the relevance of Nuo culture in Hunan Flower Drum Opera

( Zheng Yujie ),( Wu Meng ) 대한무용학회 2021 대한무용학회논문집 Vol.79 No.1

The ancient Chinese opera source is closely related to ancient Chinese totem worship and religious sacrificial activities, the Wu Nuo culture. The earliest exorcising culture was protected by the political, but along with the phenomenon of "the collapse of rites and music," the ruling class's art and culture moved downward, from court to folk, fusing with folk songs and dances to gradually form new art forms. Until the Yuan, Ming, and Qing Dynasties, ancient Chinese court music and dance, folk song and dance integrated into opera became the mainstream art forms. Hunan Flower-drum Opera is one of the arts of Chinese opera. Its development is similar to that of ancient Chinese opera. It has a high research value and aesthetic value. Therefore, this study explores the Hunan Flower-drum opera's development from a historical longitudinal perspective and uses the full timeline of exorcising Chinese culture as the starting point to explain Hunan Flower-drum opera's story. It was positioning the Flower-drum Opera as the research object in Hunan, China, and exploring the artistic characteristics left over by the ancient Chinese exorcising culture. Simultaneously, exploring the exorcising culture in Hunan Flower-drum Opera can explain and analyze the formation reasons and style characteristics of ancient Chinese court music and dance and folk song and dance. It also provides a new research basis for the inheritance and development of contemporary Hunan Flower-drum Opera.

Injectable Cell Delivery Vehicle and Polymeric Conductive Constructs for Myocardial Tissue Engineering

Meng-Hsuan HSIEH,Congyu ZHANG,Song-Yi WU,Shu-Hong LI,Jun WU,Shi-Ming LIU,Hao-Ji WEI,Ren Ke LI,Hsing-Wen SUNG 한국생물공학회 2019 한국생물공학회 학술대회 Vol.2019 No.4

Distortional buckling of a CFS channel section with and without stiffened flanges

Meng-Jing Wu,Xu-hao Huang,Jue Zhu 대한기계학회 2019 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.33 No.6

Cold-formed steel (CFS) sections are commonly applied to modern engineering structures, such as roof truss, purlin and industrial goods rack. This study proposes an analytical model to investigate the distortional buckling behavior of CFS-lipped channel sections considering two load scenarios (i.e., axial compression and pure bending). The formulae and analytical solution for calculating the distortional buckling critical stress of CFS channel sections are derived on the basis of the total potential energy principle. The proposed model is extended to the channel section columns and beams with a stiffened flange. CUFSM and generalized beam theory (GBT) are used to conduct numerous channel section columns and beams to validate the proposed method. Results obtained from the proposed model are compared with those calculated using GBT and/or finite-strip code CUFSM. These numerical results are consistent with the model calculations for channel section with and without stiffeners.

Characteristic profiles of biofilm, enterotoxins and virulence of Staphylococcus aureus isolates from dairy cows in Xinjiang Province, China

Yehui Wu,Jing Li,Mengfan Qiao,Dan Meng,Qingling Meng,Jun Qiao,Xingxing Zhang,Lixia Wang,Kuojun Cai,Jinsheng Zhang,Zaichao Zhang,Weiwei Yu,Xuepeng Cai 대한수의학회 2019 Journal of Veterinary Science Vol.20 No.6

As an important zoonotic pathogen, Staphylococcus aureus (S. aureus) infection has led to serious mastitis and endometritis in infected dairy cows. HereIn this study, a total of 164 strains of S. aureus were isolated from dairy cows in Xinjiang Province, China, and subjected to assays to determine of drug susceptibility and biofilm (BF) formation ability. The eEnterotoxin-related genes were detected, and then the transcription levels of genes related to BF formation were also determined by using reverse transcription-quantitative polymerase chain reactionPCR. Moreover, the pathogenicity of these isolates with different BF formation abilities was determined via by measuring their hemolysis activity, half lethal dose (LD50) and organ bacterial load, respectively. The results showed that 83.4 % of S. aureus isolates could form BF. Among them, 40.8 % of the strains had weak BF formation ability, and most strains with a strong BF formation ability were ica gene carriers. The S. aureus isolates displayed multidrug resistance and their drug resistance was positively correlated with their BF formation ability. Moreover, 96.3 % of the S. aureus isolates carried enterotoxin genes. Among them, the detection rates of the novel enterotoxin genes were higher than thoseat of conventional enterotoxin genes. Furthermore, the isolates with a strong BF formation ability had higher LD50 but lower hemolysis ability and organ bacterial load than thoseat of the isolates with weak or no BF ability. However, those isolates without BF ability caused produced more severe pathological changes than thoseat of the isolates with strong BF formation ability. These findings suggested that higher frequencies of BF ability and presence of novel enterotoxin genes were are important characteristics of S. aureus isolates from dairy cows in Xinjiang Province, China, and such isolateswhich may posed potential threats to food safety.