A Novel Resource Scheduling Scheme for CoMP Systems

( Wen`an Zhou ),( Jianlong Liu ),( Yiyu Zhang ),( Chengyi Yang ),( Xuhui Yang ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.2

Coordinated multiple points transmission and reception (CoMP) technology is used to mitigate the inter-cell interference, and increase cell average user normalized throughput and cell edge user normalized throughput. There are two kinds of radio resource schedule strategies in LTE-A/5G CoMP system, and they are called centralized scheduling strategy and distributed scheduling strategy. The regional centralized scheduling cannot solve interference of inter-region, and the distributed scheduling leads to worse efficiency in the utilize of resources. In this paper, a novel distributed scheduling scheme named 9-Cell alternate authorization (9-CAA) is proposed. In our scheme, time-domain resources are divided orthogonally by coloring theory for inter-region cooperation in 9-Cell scenario [6]. Then, we provide a formula based on 0-1 integer programming to get chromatic number in 9-CAA. Moreover, a feasible optimal chromatic number search algorithm named CNS-9CAA is proposed. In addition, this scheme is expanded to 3-Cell scenario, and name it 3-Cell alternate authorization (3-CAA). At last, simulation results indicate that 9/3-CAA scheme exceed All CU CoMP, 9/3C CU CoMP and DLC resource scheduling scheme in cell average user normalized throughput. Especially, compared with the non-CoMP scheme as a benchmark, the 9-CAA and 3-CAA have improved the edge user normalized throughput by 17.2% and 13.0% respectively.

Positive Association of TEAD1 With Schizophrenia in a Northeast Chinese Han Population

Yang Sun,Lin Wen,Yi-Yang Luo,Wen-Juan Hu,Hui-Wen Ren,Ye Lv,Cong Zhang,Ping Gao,Li-Na Xuan,Guan-Yu Wang,Cheng-Jie Li,Zhi-Xin Xiang,Zhi-Lin Luan 대한신경정신의학회 2023 PSYCHIATRY INVESTIGATION Vol.20 No.12

Objective Schizophrenia is a complex and devastating psychiatric disorder with a strong genetic background. However, much uncertainty still exists about the role of genetic susceptibility in the pathophysiology of schizophrenia. TEA domain transcription factor 1 (TEAD1) is a transcription factor associated with neurodevelopment and has modulating effects on various nervous system diseases. In the current study, we performed a case–control association study in a Northeast Chinese Han population to explore the characteristics of pathogenic <i>TEAD1</i> polymorphisms and potential association with schizophrenia.Methods We recruited a total of 721 schizophrenia patients and 1,195 healthy controls in this study. The 9 single nucleotide polymorphisms (SNPs) in the gene region of <i>TEAD1</i> were selected and genotyped.Results The genetic association analyses showed that five SNPs (rs12289262, rs6485989, rs4415740, rs7113256, and rs1866709) were significantly different between schizophrenia patients and healthy controls in allele or/and genotype frequencies. After Bonferroni correction, the association of three SNPs (rs4415740, rs7113256, and rs1866709) with schizophrenia were still evident. Haplotype analysis revealed that two strong linkage disequilibrium blocks (rs6485989-rs4415740-rs7113256 and rs16911710-rs12364619-rs1866709) were globally associated with schizophrenia. Four haplotypes (C-C-C and T-T-T, rs6485989-rs4415740-rs7113256; G-T-A and G-T-G, rs16911710-rs12364619-rs1866709) were significantly different between schizophrenia patients and healthy controls.Conclusion The current findings indicated that the human <i>TEAD1</i> gene has a genetic association with schizophrenia in the Chinese Han population and may act as a susceptibility gene for schizophrenia.

Head-on Collision Between Two Envelope Solitary Waves in a Granular Medium

Wen-Qing Du,Jian-An Sun,Juan-Fang Han,Wen-Shan Duan,Yang-Yang Yang,Xin Jiang 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.75 No.11

We investigated the head-on collision between two envelope solitary waves. Head-on collisions between two envelope solitary waves are first discussed in one-dimension (1D) granular chains. The interesting result is that no phase shift or phase delay detected after the head-on collision between two envelope solitary waves. The maximum amplitude during the head-on collision between two envelope solitary waves is also found to be less than the sum of the amplitudes of the two envelope solitary waves, but is larger than the amplitude of the either of the envelope solitary waves.

Coevolution between Human's Anticancer Activities and Functional Foods from Crop Origin Center in the World

Zeng, Ya-Wen,Du, Juan,Pu, Xiao-Ying,Yang, Jia-Zhen,Yang, Tao,Yang, Shu-Ming,Yang, Xiao-Meng Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.6

Cancer is the leading cause of death around the world. Anticancer activities from many functional food sources have been reported in years, but correlation between cancer prevalence and types of food with anticancer activities from crop origin center in the world as well as food source with human migration are unclear. Hunger from food shortage is the cause of early human evolution from Africa to Asia and later into Eurasia. The richest functional foods are found in crop origin centers, housing about 70% in the world populations. Crop origin centers have lower cancer incidence and mortality in the world, especially Central Asia, Middle East, Southwest China, India and Ethiopia. Asia and Africa with the richest anticancer crops is not only the most important evolution base of humans and origin center of anticancer functional crop, but also is the lowest mortality and incidence of cancers in the world. Cancer prevention of early human migrations was associated with functional foods from crop origin centers, especially Asia with four centers and one subcenter of crop origin, accounting for 58% of the world population. These results reveal that coevolution between human's anticancer activities associated with functional foods for crop origin centers, especially in Asia and Africa.

Two-Photon Absorption Properties of 2,6-Bis(styryl)anthracene Derivatives: Effects of Donor–Acceptor Substituents and the π Center

Yang, Wen Jun,Kim, Dae Young,Jeong, Mi-Yun,Kim, Hwan Myung,Lee, Yun Kyoung,Fang, Xingzhong,Jeon, Seung-Joon,Cho, Bong Rae WILEY-VCH Verlag 2005 Chemistry Vol.11 No.14

<P>A series of 2,6- and 2,7-bis(styryl)anthracene derivatives with the donors at the styryl group and acceptors at the 9,10-positions have been synthesized, and their two-photon cross sections (Φδ<SUB>max</SUB>) were determined. These compounds exhibit a peak two-photon absorptivity (δ<SUB>max</SUB>) in the range of 700–2500 GM at 780–1030 nm. Values of λ<SUB>max</SUB> and Stokes shifts increase as the acceptor is changed to a stronger one. There is also a parallel increase in <TEX>${\lambda {{(2)\hfill \atop {\rm max}\hfill}}}$</TEX> and δ<SUB>max</SUB> with the same variation of the chromophore structure. Both <TEX>${\lambda {{(2)\hfill \atop {\rm max}\hfill}}}$</TEX> and Φδ<SUB>max</SUB> have been optimized by introducing donor-substituted styryl groups at the 2,6-positions and p-cyanophenyl groups at the 9,10-positions, respectively. The effect of a π center on the two-photon absorption properties has been assessed by comparing the existing data for a variety of D–π–D derivatives.</P> <B>Graphic Abstract</B> <P>2,6-Bis(styryl)anthracene derivatives (see figure) have been synthesized and shown to exhibit a large two-photon cross section in the peak absorptivity range of 1080–2490 GM at <TEX>${{\lambda {{(2)\hfill \atop {\rm {\rm max}}\hfill}}}}$</TEX>=780–990 nm; values which are significantly larger than those of the corresponding 1,4-bis(p-dibutylaminostyryl)benzene derivatives. <img src='wiley_img/09476539-2005-11-14-CHEM200401134-content.gif' alt='wiley_img/09476539-2005-11-14-CHEM200401134-content'> </P>

Micro-Transport Phenomena in the World of Minute Droplets

Wen Jei Yang 대한기계학회 1998 Heat transter conference Vol.1 No.1

Simulation and Comparison of the Lighting Efficiency for Household Illumination with LEDs and Fluorescent Lamps

Wen-Shing Sun,Chuen-Lin Tien,Jui-Wen Pan,Tsung-Hsun Yang,Chih-Hsuan Tsuei,Yi-Han Huang 한국광학회 2013 Current Optics and Photonics Vol.17 No.5

The design of the LEDs lighting in general household illumination was proposed and compared with the fluorescent lighting in this study. Using the LED as a light source would promote energy saving lighting for household illumination purposes. We used the LightTools and DIALux software to design and simulate different standards of illuminance, different correlated color temperatures and different color rendering indices for household environments. The power consumption and efficiency of traditional illuminated light sources and an LED light source with the same standard of illuminance for lighting the household environment were analyzed and compared with each other. Finally, our results show the advantages of using white-light LEDs for lighting and household illumination.

Effectively remediating spiramycin from production wastewater through hydrolyzing its functional groups using solid superacid TiO₂/SO₄

Yang, Wen,Ok, Yong Sik,Dou, Xiaomin,Zhang, Yu,Yang, Min,Wei, Dongbin,Xu, Peng Elsevier 2019 Environmental research Vol.175 No.-

<P><B>Abstract</B></P> <P>Breaking down the structural bonds and eliminating the functional groups are more efficient than destroying the whole molecule in antibiotic production wastewater (APW) pretreatment before further biotreatment. Two sulfated titania (TiO<SUB>2</SUB>/SO<SUB>4</SUB>) solid superacids, SSA1 and SSA2 were synthesized, characterized and used for hydrolytic pretreatment of spiramycin in APW. Spiramycin removal followed an order of SSA2>SSA1>TiO<SUB>2</SUB>≈pH = 3>control. The hydrolytic efficiencies increased at elevated temperature from 25 °C to 65 °C. The hydrolytic kinetics followed a first-order model and SSA2 performed the fastest. The performances were positively correlated with both the total acidity determined by <I>n</I>-butylamine titration and the strength of acid sites measured by NH<SUB>3</SUB>-temperature-programmed desorption (TPD). The residual solution for SSA2 presented the least antibacterial potency and anaerobic inhibition among all treatments. The hydrolyzed product was identified as the <I>m/z</I> 699.4321 fragment using UPLC-Q/TOF-MS, which was formed after losing a functional mycarose moiety from the parent molecular. The solid superacids were effective in selectively eliminating 433 mg/L of spiramycin and the antibacterial potencies of the spiramycin production wastewater, which contained very high concentrations of COD (33,000 mg/L). This hydrolytic method avoids using and handling hazardous and corrosive mineral acids on site. It is attractive as a selective catalytic pretreatment method to cleave antibiotics’ functional groups and to reduce its inhibitory effects before sequential biotreatments.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Solid superacids were made by calcining the reaction products of H<SUB>2</SUB>SO<SUB>4</SUB> and titania. </LI> <LI> Functional group breakage was catalyzed by the acid sites of solid superacids. </LI> <LI> The Lewis and Brønsted acidic sites all contributed to the hydrolytic reaction. </LI> <LI> The antibacterial potency and the anaerobic inhibition were effectively decreased. </LI> <LI> Superacids performed well in hydrolytic pretreatment of the production wastewater. </LI> </UL> </P>

Introducing the Next Generation in Insulation

Wen Jei Yang,Nengli Zhang 대한기계학회 1993 International Symposium on Transport Phenomena in Vol.2 No.1

Channel Allocation Strategies for Interference-Free Multicast in Multi-Channel Multi-Radio Wireless Mesh Networks

( Wen-lin Yang ),( Wan-ting Hong ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.2

Given a video stream delivering system deployed on a multicast tree, which is embedded in a multi-channel multi-radio wireless mesh network, our problem is concerned about how to allocate interference-free channels to tree links and maximize the number of serviced mesh clients at the same time. In this paper, we propose a channel allocation heuristic algorithm based on best-first search and backtracking techniques. The experimental results show that our BFB based CA algorithm outperforms previous methods such as DFS and BFS based CA methods. This superiority is due to the backtracking technique used in BFB approach. It allows previous channel-allocated links to have feasibility to select the other eligible channels when no conflict-free channel can be found for the current link during the CA process. In addition to that, we also propose a tree refinement method to enhance the quality of channel-allocated trees by adding uncovered destinations at the cost of deletion of some covered destinations. Our aim of this refinement is to increase the number of serviced mesh clients. According to our simulation results, it is proved to be an effective method for improving multicast trees produced by BFB, BFS and DFS CA algorithms.