A Novel Nonlinear Optimization Coverage Algorithm in Wireless Sensor Networks

Huiling Peng,Zeyu Sun,Yuanbo Li 보안공학연구지원센터 2016 International Journal of Future Generation Communi Vol.9 No.7

Maximize coverage and prolong the network lifetime for wireless sensor networks has become one of the key topics of research. For this, put forward a kind of node scheduling strategy based on covering algorithm. The algorithm by Poisson distribution model structure node density formula, according to the node density formula in the monitoring region deploying to effective coverage; On the other hand, through the node state scheduling mechanism updates as well as to the neighbor node, can be made of residual energy of nodes and monitoring the area sensor the node energy consumption balance, so as to prolong the network lifetime goal. The simulation results show that, the algorithm cans not only useless nodes completely too effective coverage, improve the coverage while optimizing the cyber source configuration, prolong the network lifetime.

A New Cassane-type Diterpene and Other Constituents from Caesalpinia minax

Huiling Liu,Guoxu Ma,Jingquan Yuan,Xiaoming Tan,Qingxia Zheng,Zhaocui Sun,Junshan Yang,Xudong Xu 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.5

A New Cassane-type Diterpene and Other Constituents from Caesalpinia minax

Liu, Huiling,Ma, Guoxu,Yuan, Jingquan,Tan, Xiaoming,Zheng, Qingxia,Sun, Zhaocui,Yang, Junshan,Xu, Xudong Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.5

Effect of 3.7 at% F doping on the atomic structure and reducibility of CeO2(111) surface: A first principles calculation

Jia Huiling,Hu Jinbao,Chen Hao,Wu Jinxiu,Tan Xin,Sun Shiyang 한국물리학회 2022 Current Applied Physics Vol.43 No.-

Density functional theory calculations was conducted to clarify effect of fluorination on the reducibility of CeO2 polishing powder. The atomic structure and O vacancy formation energy of F-doped CeO2(111) surface were systematically calculated, and electronic structure was also analyzed to understand the calculation results. It showed that the CeO1.963(111) surface needs absorb 7.853 eV to be reduced further, so it is difficult to generate the second O vacancy (V2). After fluorination, the first O vacancy (V1) in CeO1.926F0.037(111) surface caused adjacent atoms to move significantly, and O vacancy formation energy decreased to 2.913 eV, which promoted the formation of V2. Moreover, electronic structure calculation also showed that the interaction between O2p and Ce4f5d orbits was enhanced in reduced CeO1.963(111) surface, which hindered the formation of V2. The F2p orbit in CeO1.926F0.037(111) surface moved towards the low energy level, V1 made the reduced surface stable and promoted the formation of V2.

Kano모델에 기반한 박물관 문화 상품의 소비자 선호도 연구

손총 ( Sun Cong ),권인영 ( Kwon Inyoung ),고혜악 ( Gao Huile ) 커뮤니케이션디자인학회 2022 커뮤니케이션 디자인학연구 Vol.78 No.-

박물관은 문화재가 머무는 장소로서 지역이나 국가의 수천 년 동안 축적된 문화를 담거나 도시의 역사적 모습과 인문 정신을 전달한다. 박물관의 문화 상품은 전통 문화 자원을 활성화할 뿐 아니라 문화 전달의 중요한 전달체이다. 박물관의 문화상점은 박물관의 ‘마지막 전시실’로서 이것의 판매는 일정한 수익 창출 외에 박물관 홍보의 중요한 수단이다. 그러나 박물관의 문화 상품은 동일화, 문화적 함의 부족, 지역성 결핍 등 많은 문제가 있다. 본 연구는 박물관의 문화 상품을 대상으로 하고, 문화 3단계 이론을 가지고 박물관의 문화 상품의 속성과 품질을 분류하였다. 그리고 Kano 모델을 통해 문화 속성에 대한 쌍방향 설문을 진행하였다. 상품 속성과 소비자 선호도 간의 상관성을 탐색하고, 나아가 박물관 문화상품에 대한 소비자의 품질 욕구를 탐색하였다. 마지막으로 박물관 문화상품의 개발 과정에서 ‘소장유물의 형태 활용’, ‘인문 역사적 상황 조성’ 등을 최대한 충족시키고 ‘실용성’, ‘정서적 공감대’ 등 매력적인 문화속성을 적절히 더해야 한다. 박물관 문화상품의 세대교체를 통해 ‘조형 디자인’의 하나인 메타 문화적 속성을 높이는 등 개발전략을 수립해야 한다는 것이다. 문화 상품 개발에 정확한 위치를 제공하는 것이 소비자의 만족도를 높이는데 효과적이다. As the residency place of historical relics, the museum is loaded with the regional or national cultural heritage for thousands of years. It can show the historical features of the city and convey the humanistic spirit as well. The cultural commodities in the museum are not only a living exhibition of traditional cultural resources, but also an important carrier of cultural transmission. the cultural store in the museum, as the "last exhibition hall" of the museum, whose commodities on sale can bring certain revenue to the museum as well as play an important role in cultural advertising for the museum. With the introduction of cultural commodities in major museums, there appears lots of problems in the practical situation, such as high homogeneity, insufficient cultural connotation, unclear regional features and so on. Based on the three-level cultural theory, this study selects the cultural products on sale in the Cultural Relics Museum as the object to extract the attributes of cultural goods in the museum and sort out their qualities. The Kano model is used to conduct a two-way questionnaire on cultural attributes to explore the correlation between the cultural attributes of commodities and consumers' preference, and then to explore consumers' quality demands for museum cultural commodities. Finally, it is concluded that the necessary cultural attributes such as "using the form of cultural relics in the collection" and "shaping the humanistic and historical scene" should be satisfied as much as possible in the development process of museum cultural commodities, and the attractive cultural attributes such as "practicality" and "stimulating emotional resonance" should be appropriately increased. The iteration of museum cultural commodities has gradually improved the development strategies such as the one-dimensional cultural attribute of "shape has a sense of design". Provide precise positioning for the development of cultural commodities and effectively improve consumer satisfaction.

Synchronized Expression of Two Bombyx mori Caspase Family Genes, ice-2 and ice-5 in Cells Induced by Ultraviolet Irradiation

Wang, Wenbing,Sun, Ying,Song, Lina,Wu, Yan,Wu, Huiling Korean Society of Sericultural Science 2008 International Journal of Industrial Entomology Vol.17 No.1

The caspase family proteins play an important role in programmed cell death (apoptosis). To date, the expression profiles of the caspase family genes in Bombyx mori (Bm) are poorly known. In this study, we examined the expression profiles of two novel Bm caspase family genes (ice-2 and ice-5), the potential change of the mitochondrial membrane and the morphology in Bm cells after stimulation of ultraviolet (UV) irradiation. The results showed the potential change of the mitochondrial membrane occurred at 5 hours after UV irradiation treatment. Analysis of fluorescent quantitative RT-PCR demonstrated that both the ice-2 and ice-5 might be involved in UV induced apoptosis in Bm cells. Notably, after UV irradiating, expression pattern of ice-2 and ice-5 were remarkably different. The ice-2 gene was highly expressed at two time points, 0.5 and 5 hours after UV stimulating, while the expression level of ice-5 only peaked at 5 hours after UV stimulating. It indicated that apoptosis induced by UV irradiation was involved in the mitochondrial pathway and the two isoforms of Bm ice may act but play different role during the apoptosis of Bm cells.

Repetitive Control with Specific Harmonic Gain Compensation for Cascaded Inverters under Rectifier Loads

Lv, Zheng-Kai,Sun, Li,Duan, Jian-Dong,Tian, Bing,Qin, HuiLing The Korean Institute of Power Electronics 2018 JOURNAL OF POWER ELECTRONICS Vol.18 No.6

The further improvement of submarine propulsion is associated with the modularity of accumulator-fed inverters, such as cascaded inverters (CIs). CI technology guarantees smooth output voltages with reduced switch frequencies under linear loads. However, the output voltages of CIs are distorted under rectifier loads. This distortion requires harmonic suppression technology. One such technology is the repetitive controller (RC), which is commonly applied but suffers from poor performance in propulsion systems. In this study, the FFT spectrum of a CI under rectifier load is analyzed, and the harmonic contents are uneven in magnitude. For the purpose of harmonic suppression, the control gains at each harmonic frequency should be seriously considered. A RC with a specific harmonic gain compensation (SHGC) for CIs is proposed. This method provides additional control gains at low-order harmonic frequencies, which are difficult to achieve with conventional RCs. This SHGC consists of a band-pass filter (BPF) and proportional element and is easy to implement. These features make the proposed method suitable for submarine propulsion. Experimental results verify the feasibility of the improved RC.

Repetitive Control with Specific Harmonic Gain Compensation for Cascaded Inverters under Rectifier Loads

Zheng-Kai Lv,Li Sun,Jian-Dong Duan,Bing Tian,HuiLing Qin 전력전자학회 2018 JOURNAL OF POWER ELECTRONICS Vol.18 No.6

The further improvement of submarine propulsion is associated with the modularity of accumulator-fed inverters, such as cascaded inverters (CIs). CI technology guarantees smooth output voltages with reduced switch frequencies under linear loads. However, the output voltages of CIs are distorted under rectifier loads. This distortion requires harmonic suppression technology. One such technology is the repetitive controller (RC), which is commonly applied but suffers from poor performance in propulsion systems. In this study, the FFT spectrum of a CI under rectifier load is analyzed, and the harmonic contents are uneven in magnitude. For the purpose of harmonic suppression, the control gains at each harmonic frequency should be seriously considered. A RC with a specific harmonic gain compensation (SHGC) for CIs is proposed. This method provides additional control gains at low-order harmonic frequencies, which are difficult to achieve with conventional RCs. This SHGC consists of a band-pass filter (BPF) and proportional element and is easy to implement. These features make the proposed method suitable for submarine propulsion. Experimental results verify the feasibility of the improved RC.

Characterization of the global transcriptome and microsatellite marker information for spotted halibut Verasper variegatus

Jianlong Ge,Siqing Chen,Changlin Liu,Li Bian,Huiling Sun,Jie Tan 한국유전학회 2017 Genes & Genomics Vol.39 No.3

The spotted halibut Verasper variegatus is an economically important flatfish species distributed in Japan, Korea and China. However, the genomic resources regarding this species were scarcity, which hindered our understanding of the genetics and biological mechanisms in spotted halibut. In this study, we examined the global transcriptome from six major tissues of spotted halibut. Approximately 40 million of high quality reads were generated using Illumina paired-end sequencing technology. More than 9 Gbp data were generated, and de novo assembled into 59,235 unigenes, with an N50 of 938 bp. Based on sequence similarity search with known protein database, 34,084 (57.5%) showed significant similarity to known proteins in Nr database, and 28,875 (48.7%) had BLAST hits in Swiss-Prot database. 19,562 and 23,037 unigenes were assigned into gene ontology categories and clusters of orthologous group, respectively. 9138 unigenes were mapped to 211 KEGG pathways. For functional marker development, 13,322 candidate simple sequence repeats were identified in the transcriptome and 7235 primer pairs were successfully designed. Among 72 primer pairs selected for validation, 67 (93.1%) were successful in PCR amplification and 14 (19.4%) exhibited obvious repeat length polymorphisms in a culture spotted halibut population. The transcriptomic data and microsatellite markers will provide valuable resources for future functional gene analyses, genetic map construction, and quantitative trait loci mapping in V. variegatus.