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.

Effects of Different Sucrose Concentrations in the Culture Medium on the Growth of Colored Zantedeschia In Vitro under CO2 Enrichment Conditions

Zheng Wang,Yinglong Song,Liyun Shi,Yuzhen Guo,Wenqian Shang,Dan He,Song Lin He 한국화훼학회 2016 화훼연구 Vol.24 No.2

Carbon source, an essential nutrient for plant growth, mainly includes exogenous sugar and CO2 of the environment in vitro. Therefore, the exogenous sugar and CO2 of the environment make the important roles in tissue culture. The aim of this study is to investigate the effects of different sugar concentrations (0, 10, 15 and 30 g·L-1) on the growth of colored Zantedeschia in vitro under certain CO2 concentration and explore the optimal sugar concentration. The plantlets in vitro of colored Zantedeschia had the largest root number, root weight, and root vigor under 0 g·L-1 (sugar-free culture) treatment. And they had the largest plant height, leaf length and leaf chlorophyll content, but p oor r oot v igor under 3 0 g·L-1 sugar. This study indicated that the optimal condition for proliferation and seedling culture of colored Zantedeschia plantlets in vitro was MS medium with 30 g·L-1 sugar, and the suitable medium for rooting culture and transplanting of colored Zantedeschia was MS medium with sugar-free culture under CO2 enrichment condition.

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.

Ubiquitin D Promotes Progression of Oral Squamous Cell Carcinoma via NF-Kappa B Signaling

Song, An,Wang, Yi,Jiang, Feng,Yan, Enshi,Zhou, Junbo,Ye, Jinhai,Zhang, Hongchuang,Ding, Xu,Li, Gang,Wu, Yunong,Zheng, Yang,Song, Xiaomeng Korean Society for Molecular and Cellular Biology 2021 Molecules and cells Vol.44 No.7

Ubiquitin D (UBD) is highly upregulated in many cancers, and plays a pivotal role in the pathophysiological processes of cancers. However, its roles and underlying mechanisms in oral squamous cell carcinoma (OSCC) are still unclear. In the present study, we investigated the role of UBD in patients with OSCC. Quantitative real-time polymerase chain reaction and Western blot were used to measure the expression of UBD in OSCC tissues. Immunohistochemistry assay was used to detect the differential expressions of UBD in 244 OSCC patients and 32 cases of normal oral mucosae. In addition, CCK-8, colony formation, wound healing and Transwell assays were performed to evaluate the effect of UBD on the cell proliferation, migration, and invasion in OSCC. Furthermore, a xenograft tumor model was established to verify the role of UBD on tumor formation in vivo. We found that UBD was upregulated in human OSCC tissues and cell lines and was associated with clinical and pathological features of patients. Moreover, the overexpression of UBD promoted the proliferation, migration and invasion of OSCC cells; however, the knockdown of UBD exerted the opposite effects. In this study, our results also suggested that UBD promoted OSCC progression through NF-κB signaling. Our findings indicated that UBD played a critical role in OSCC and may serve as a prognostic biomarker and potential therapeutic target for OSCC treatment.

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.

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

Piezoelectric activities and domain patterns of orthorhombic Ba(Zr,Ti)O3 ceramics

P. Zheng,K.X. Song,H.B. Qin,L. Zheng,L.M. Zheng 한국물리학회 2013 Current Applied Physics Vol.13 No.6

Ba(ZrxTi1-x)O3 (0.025 ≤ x ≤ 0.065) ceramics were prepared by conventional solid-state reaction method. Crystalline structures were analyzed by X-ray diffraction. It was shown that all the Ba(ZrxTi1-x)O3(0.025 ≤ x ≤ 0.065) ceramics were of orthorhombic phase at room temperature. Piezoelectric activities and domain patterns were investigated and compared with those of BaTiO3 ceramic. All the Ba(ZrxTi1-x)O3 ceramics showed nearly the same d33 values of about 265 pC/N and the same domain width of about 220 nm. By comparing the grain sizes and domain width of the Ba(ZrxTi1-x)O3 ceramics with those of BaTiO3 ceramic, it is speculated that the variation of domain width with grain sizes in orthorhombic Ba(ZrxTi1-x)O3 ceramics may be different with that in tetragonal BaTiO3 ceramic. Besides domain width,the effective inertia mass of domain wall is also considered to be a very important factor that impacts the piezoelectric activities of the Ba(ZrxTi1-x)O3 ceramics.

Probabilistic Neural Network and Detection of Moving Point Targets

Xiao Song Zheng,Shao Lin Wang 대한전자공학회 1994 ICONIP : International Conference On Neural Inform Vol.1 No.3

맞춤형 태극권이 고령자 활동체력에 미치는 영향

송정학(Song, Zheng-Xue),이달원(Lee, Dal-Won),김성길(Jin, Cheng-Ki) 한국체육과학회 2014 한국체육과학회지 Vol.23 No.1

The purpose of this study was to investigate the effect of modified Taichi on the activity physical fitness and life satisfaction of the elderly. Taichi is an Oriental martial art and often considered as hard to learn and master. For the purpose of current study, modified, simplified Taichi was instructed to the elderly. A total of 167 elderly living in SimYang area, China (107 in the experimental group and 60 in the control group) participated in the study. Experts in Taichi helped developing the modified Taichi program and the modified program was conducted for 12 weeks, 3 times a week composed of 25 minutes each session with 4 cycles (100 minutes). Results indicated that between the experimental periods activity physical fitness of the participants improved significantly. Particularly, for all the age group the modified Taichi program had significantly positive effect on muscular strength. muscular endurance, flexibility, balance, agility, coordination. Experimental group (those with modified Taichi training) showed better or similar improvement in physical fitness compared to those participated in the traditional Taichi program.