The Study about the Bluetooth Communication

Zheng hua Song,Hyun sik Shin,Chun Suk Kim 한국전자통신학회 2007 한국전자통신학회 논문지 Vol.2 No.3

Bluetooth is a standard for short range, low power, low cost wireless communication that uses radio technology. This paper presents an overview of Bluetooth communication the following article will focus on the formation of Bluetooth scatter nets and some proposed scatter net models.

The Practical Application of Bluetooth Media Technology and Outlook for Development

Zheng Hua Song,Hyun Sik Shin,Chun Suk Kim,Yun Ho Shin 한국전자통신학회 2006 한국전자통신학회 논문지 Vol.1 No.1

이 논문은 블루투스 장치의 전 세계적으로 사용되는 무허가 ISM 대역의 2.4GHZ로 동작한다. 이 대역은 널리 사용되고 있지만, 블루투스 이외의 수많은 다른 시스템들이 이 주파수대를 사용하고 있고 마이크 웨이브 오븐과 같은 잡음원이 이 주파수대를 차지하고 있기 때문에 오히려 방해가 심한 주파수 대역이 되고 있다. 블루투스는 이와 같이 방해가 심한 전파환경을 극복하기 위해 빠른 주파수 호핑법과, 에러방지 밎 정정 기술을 사용하고 있다. 이와 같은 상황에도 불구하고, 저가의 블루투스 시스템이 신뢰성 있고 안정하게 하기위해 언급할 몇 가지 중요한 설계 상 문제점이 있고 시스템 설계시 몇 가지 면밀한 주의가 필요하므로 연구하고자 한다. This is paper, with the development of computer and network communications technology, the technology of digital computer and modern communications has integrated into the field of intelligent home appliances, making them intelligentize with the function of a network information terminal. The paper introduces the Bluetooth SIG(Special Interesting Group) and the development of the standard of the Bluetooth. Researches the application model and the practical application of the Bluetooth technology, and the component elements of the Bluetooth. Finally deals with the outlook for the development of the Bluetooth technology.

The Practical Application of Bluetooth Media Technology and Outlook for Development

Song, Zheng-Hua,Shin, Hyun-Sik,Kim, Chun-Suk,Shin, Yun-Ho Korea Institute of Electronic Communication Scienc 2006 한국전자통신학회 논문지 Vol.1 No.1

This is paper, with the development of computer and network communications technology, the technology of digital computer and modern communications has integrated into the field of intelligent home appliances, making them intelligentize with the function of a network information terminal. The paper introduces the Bluetooth SIG(Special Interesting Group) and the development of the standard of the Bluetooth. Researches the application model and the practical application of the Bluetooth technology, and the component elements of the Bluetooth. Finally deals with the outlook for the development of the Bluetooth technology. 이 논문은 블루투스 장치의 전 세계적으로 사용되는 무허가 ISM 대역의 2.4GHZ로 동작한다. 이 대역은 널리 사용되고 있지만, 블루투스 이외의 수많은 다른 시스템들이 이 주파수대를 사용하고 있고 마이크 웨이브 오븐과 같은 잡음원이 이 주파수대를 차지하고 있기 때문에 오히려 방해가 심한 주파수 대역이 되고 있다. 블루투스는 이와 같이 방해가 심한 전파환경을 극복하기 위해 빠른 주파수 호핑법과, 에러방지 및 정정기술을 사용하고 있다. 이와 같은 상황에도 불구하고, 저가의 블루투스 시스템이 신뢰성 있고 안정하게 하기 위해 언급할 몇 가지 중요한 설계 상 문제점이 있고 시스템 설계시 몇 가지 면밀한 주의가 필요하므로 연구하고자 한다.

스마트폰 중독 초등학생을 위한 개입프로그램 메타분석

정송화(Song-Hua Zheng),이경은(Keung-Eun Lee),김미정(Mi-Jung Kim) 한국산학기술학회 2019 한국산학기술학회논문지 Vol.20 No.2

아동의 스마트폰의 무분별한 사용은 일상생활에 장애가 되며 아동의 신체적, 심리적, 관계적인 측면에 부정적인 영향을 미치게 된다. 하지만 스마트폰에 중독된 아동이 날로 늘어나고 있다. 이에 본 연구는 초등학생 대상으로 스마트폰 중독 집단 프로그램의 효과성을 살펴보기 위해 메타분석을 실시하였고, 국내에서 출간된 스마트폰 집단상담 프로그램의 연구 18편을 분석하였다. 분석결과 첫째, 초등학생 스마트폰 중독감소를 유발하는 스마트폰 중독 집단프로그램의 전체 변인의 효과 크기는 g=-0.90로 나타나 집단상담 프로그램이 스마트폰 중독 감소 및 관련 변인들의 변화에도 효과가 있음을 확인할 수 있다. 둘째, 집단 간 차이를 검증한 결과 자발적인 참여 동기에서 효과에 차이가 있었다. 따라서 본연구결과 초등학생을 대상으로 하는 개입은 자발적 참여가 이루어질 수 있도록 사전 스마트폰에 대한 예방 교육이 필요하고, 부모를 대상으로 아동이 스마트폰을 적절히 사용할 수 있도록 하는 자율성을 키울 수 있는 교육이 필요하다. 그리고 이러한 노력이 스마트폰에 한정적으로 이루어지기보다는 IT 리터러시 교육이 체계적으로 이루어질 필요가 있다. Reckless use of the Internet by children is a barrier to daily life and has a negative impact on children"s physical, psychological and relational aspects. But more and more children depend on the Internet. Thus, the study conducted a meta-analysis to examine the effectiveness of group programs that involve Internet addiction among elementary school students. The study analyzed 18 studies of a local Internet group counseling program. First, the overall effectiveness of Internet-dependent group programs that cause Internet addiction reduction in elementary school students is shown to be g=0.90, indicating that group counseling programs are effective in reducing Internet addiction and changing related variables. Second, as a result of verifying differences between groups, there were differences in effectiveness in voluntary participation motivations. Therefore, intervention by elementary school students requires preventive training for smart phones so that voluntary participation can occur, and education for parents to develop autonomy for children to use smartphones properly. And rather than making these efforts limited to smart phones, IT retriever education needs to be organized.

스마트폰 사용조절 집단상담 프로그램 개발 및 효과 연구 -지역아동센터 이용 아동을 중심으로-

정송화(Song-Hua Zheng),이경은(Keung Eun Lee),하나영(Na Yung Ha) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.2

Plasma metabolites associated with physiological and biochemical indexes indicate the effect of caging stress on mallard ducks (Anas platyrhynchos)

Zheng Chao,Wu Yan,Liang Zhen Hua,Pi Jin Song,Cheng Shi Bin,Wei Wen Zhuo,Liu Jing Bo,Lu Li Zhi,Zhang Hao 아세아·태평양축산학회 2022 Animal Bioscience Vol.35 No.2

Objective: Cage rearing has critical implications for the laying duck industry because it is convenient for feeding and management. However, caging stress is a type of chronic stress that induces maladaptation. Environmental stress responses have been extensively studied, but no detailed information is available about the comprehensive changes in plasma metabolites at different stages of caging stress in ducks. We designed this experiment to analyze the effects of caging stress on performance parameters and oxidative stress indexes in ducks. Methods: Liquid chromatography tandem mass spectrometry (LC/MS-MS) was used to determine the changes in metabolites in duck plasma at 5 (CR5), 10 (CR10), and 15 (CR15) days after cage rearing and traditional breeding (TB). The associated pathways of differentially altered metabolites were analyzed using Kyoto encyclopedia of genes and genomes (KEGG) database. Results: The results of this study indicate that caging stress decreased performance parameters, and the plasma total superoxide dismutase levels were increased in the CR10 group compared with the other groups. In addition, 1,431 metabolites were detected. Compared with the TB group, 134, 381, and 190 differentially produced metabolites were identified in the CR5, CR10, and CR15 groups, respectively. The results of principal component analysis (PCA) show that the selected components sufficiently distinguish the TB group and CR10 group. KEGG analysis results revealed that the differentially altered metabolites in duck plasma from the CR5 and TB groups were mainly associated with ovarian steroidogenesis, biosynthesis of unsaturated fatty acids, and phenylalanine metabolism. Conclusion: In this study, the production performance, blood indexes, number of metabolites and PCA were compared to determine effect of the caging stress stage on ducks. We inferred from the experimental results that caging-stressed ducks were in the sensitive phase in the first 5 days after caging, caging for approximately 10 days was an important transition phase, and then the duck continually adapted. Objective: Cage rearing has critical implications for the laying duck industry because it is convenient for feeding and management. However, caging stress is a type of chronic stress that induces maladaptation. Environmental stress responses have been extensively studied, but no detailed information is available about the comprehensive changes in plasma metabolites at different stages of caging stress in ducks. We designed this experiment to analyze the effects of caging stress on performance parameters and oxidative stress indexes in ducks.Methods: Liquid chromatography tandem mass spectrometry (LC/MS-MS) was used to determine the changes in metabolites in duck plasma at 5 (CR5), 10 (CR10), and 15 (CR15) days after cage rearing and traditional breeding (TB). The associated pathways of differentially altered metabolites were analyzed using Kyoto encyclopedia of genes and genomes (KEGG) database.Results: The results of this study indicate that caging stress decreased performance parameters, and the plasma total superoxide dismutase levels were increased in the CR10 group compared with the other groups. In addition, 1,431 metabolites were detected. Compared with the TB group, 134, 381, and 190 differentially produced metabolites were identified in the CR5, CR10, and CR15 groups, respectively. The results of principal component analysis (PCA) show that the selected components sufficiently distinguish the TB group and CR10 group. KEGG analysis results revealed that the differentially altered metabolites in duck plasma from the CR5 and TB groups were mainly associated with ovarian steroidogenesis, biosynthesis of unsaturated fatty acids, and phenylalanine metabolism.Conclusion: In this study, the production performance, blood indexes, number of metabolites and PCA were compared to determine effect of the caging stress stage on ducks. We inferred from the experimental results that caging-stressed ducks were in the sensitive phase in the first 5 days after caging, caging for approximately 10 days was an important transition phase, and then the duck continually adapted.

Age of Diagnosis of Breast Cancer in China: Almost 10 Years Earlier than in the United States and the European Union

Song, Qing-Kun,Li, Jing,Huang, Rong,Fan, Jin-Hu,Zheng, Rong-Shou,Zhang, Bao-Ning,Zhang, Bin,Tang, Zhong-Hua,Xie, Xiao-Ming,Yang, Hong-Jian,He, Jian-Jun,Li, Hui,Li, Jia-Yuan,Qiao, You-Lin,Chen, Wan-Qin Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22

Background: The study aimed to describe the age distribution of breast cancer diagnosis among Chinese females for comparison with the United States and the European Union, and provide evidence for the screening target population in China. Materials and Methods: Median age was estimated from hospital databases from 7 tertiary hospitals in China. Population-based data in China, United States and European Union was extracted from the National Central Cancer Registry, SEER program and GLOBOCAN 2008, respectively. Age-standardized distribution of breast cancer at diagnosis in the 3 areas was estimated based on the World Standard Population 2000. Results: The median age of breast cancer at diagnosis was around 50 in China, nearly 10 years earlier than United States and European Union. The diagnosis age in China did not vary between subgroups of calendar year, region and pathological characteristics. With adjustment for population structure, median age of breast cancer at diagnosis was 50~54 in China, but 55~59 in United States and European Union. Conclusions: The median diagnosis age of female breast cancer is much earlier in China than in the United States and the European Union pointing to racial differences in genetics and lifestyle. Screening programs should start at an earlier age for Chinese women and age disparities between Chinese and Western women warrant further studies.

Effect of Oral Administration of Scutellaria Baicalensis Root Extract on Atopic Dermatitis-like Skin Lesion Induced by Oxazolone in Hairless Mice

Song, Jeong-Min,Zheng, Hua,Seo, Hyo-Jeong,Ji, Geun-Eog The Korean Society for Applied Biological Chemisty 2012 Applied Biological Chemistry (Appl Biol Chem) Vol.55 No.2

Effect of oral administration of methanolic extract from Scutellaria baicalensis root (SB) on the development of oxazolone-induced atomic dermatitis (AD)-like skin lesions in hairless mice was investigated. Mice were orally administered SB 250, 500 mg/kg/day, or dexamethasone 1 mg/kg/day for 33 days. Oral administration of SB inhibited the development of clinical symptoms, and reduced dermal mast cell infiltration, but did not show definite suppressive effect on elevation of serum total IgE level under experimental condition. Interleukin (IL)-6 level in serum and the mRNA expressions of IL-4, IL-13, IL-12, interfereon-${\gamma}$, transforming growth factor-${\beta}$, and fork head box P3 in draining lymph nodes were not significantly affected by SB administration, indicating SB could alleviate AD via the inhibition of mast cell infiltration.

Effect of Oral Administration of Scutellaria Baicalensis Root Extract on Atopic Dermatitis-like Skin Lesion Induced by Oxazolone in Hairless Mice

Jeongmin Song,Hua Zheng,Hyo Jeong Seo,지근억 한국응용생명화학회 2012 Applied Biological Chemistry (Appl Biol Chem) Vol.55 No.2

Effect of oral administration of methanolic extract from Scutellaria baicalensis root (SB) on the development of oxazolone-induced atomic dermatitis (AD)-like skin lesions in hairless mice was investigated. Mice were orally administered SB 250, 500 mg/kg/day, or dexamethasone 1 mg/kg/day for 33 days. Oral administration of SB inhibited the development of clinical symptoms, and reduced dermal mast cell infiltration, but did not show definite suppressive effect on elevation of serum total IgE level under experimental condition. Interleukin (IL)-6 level in serum and the mRNA expressions of IL-4, IL-13, IL-12, interfereon-γ, transforming growth factor-β, and fork head box P3 in draining lymph nodes were not significantly affected by SB administration,indicating SB could alleviate AD via the inhibition of mast cell infiltration.

An Oligonucleotide Microarray Bait for Isolation of Target Gene Fragments

( Shi Rong ),( Ma Wen Li ),( Liu Cui Hua ),( Song Yan Bin ),( Mao Xiang Ming ),( Zheng Wen Ling ) 생화학분자생물학회 2004 BMB Reports Vol.37 No.2

A new molecular-baiting method was studied by retrieving targeted gene fragments from an oligonucleotide microarray bait after hybridization. To make the microarray bait, 70-mer oligonucleotides that were designed to specifically represent the SSAl gene of Saccharomyces cerevisiae were printed on the slide. Samples of the Saccharomyces cerevisiae mRNA were extracted and labeled by the RD-PCR (Restriction Display PCR) method using the CyS-labelled universal primer, then applied for hybridization. The sample fragments that hybridized to the microarray were stripped, and the eluted cDNAs were retrieved and cloned into the pMD 18-T vector for transformation, plasmid preparation, and sequencing. BLAST searching of the GenBank database identified the retrieved fragments as being identical to the SSAl gene (from 2057-2541bp). A new method is being established that can retrieve the sample fragments using an oligo-microarray-bait.