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| 1 | The role of MC1R gene in buffalo coat color显示文摘Melanocortin-1 receptor (MC1R) plays a major role in pigmentation in many species.To investigate if the MC1R gene is associated with coat color in water buffalo,the coding region of MC1R gene of 216 buffalo samples was sequenced,which included 49 black river buffalo (Murrah and Nili-Ravi),136 swamp buffalo (Dehong,Diandongnan,Dechang,Guizhou,and Xilin) with white and gray body,and 31 hybrid offspring of river buffalo Nili-Ravi (or Murrah) and swamp buffalo.Among the three variation sites found,SNP684 was synonymous,while SNP310 and SNP384 were nonsynonymous,leading to p.S104G and p.I128M changes,respectively.Only Individuals carrying homozygote EBR/EBR were black.The genotype and phenotype analysis of the hybrid offspring of black river buffalo and gray swamp buffalo further revealed that the river buffalo type allele EBR or the allele carrying the amino acid p.104S was important for the full function of MC1R.The in silico functional analysis showed that the amino acid substitutions p.G104S and p.M128I had significant impact on the function of MC1R.Above results indicate that the allele EBR or the allele carrying the amino acid p.104S was associated with the black coat color in buffalo. | MIAO YongWang1,2,WU GuiSheng3,WANG Lei2,LI DaLin4,TANG ShouKun5,LIANG JianPing2,MAO HuaMing2,LUO HuaiRong3 & ZHANG YaPing1,6 1 Laboratory for Conservation and Utilization of Bio-resource,Yunnan University,Kunming 650091,China 2 Faculty of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China 3 Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650204,China 4 Yunnan Institute of Buffalo Science and Technology,Kunming 650021,China 5 Animal Husbandry and Veterinary Station of Luxi city,Luxi 678400,China 6 State Key Laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,Chinese Academy of Sciences,Kunming 650223,China | 2010 | Science China(Life Sciences)2010，53，2： | 8 |
| 2 | Energy efficient design for multiuser downlink energy and uplink information transfer in 5G显示文摘Simultaneous wireless information and power transfer(SWIPT) is studied in this paper for the wireless powered downlink(DL) and multiuser information uplink(UL) systems. The objective is to maximize the energy efficiency defined as the ratio of the achieved throughput over the energy cost by optimizing the time allocation for the DL and multi-user UL traffics and its goal is to obtain the analytical expression to the optimal time allocation yet the resulting difficulty comes from the sum throughput of the multiuser in UL as well as the corresponding power consumption. To tackle this, the Jensen inequality is applied to approximating the exact expression of the sum throughput for the UL multi-users, leading to an upper-bound of the counterpart.The final closed form is exact in the single-user scenario yet approximate in the multi-user scenario. Numerical simulations verify the tightness of this approximation and the performances of the proposed analytical scheme. | Chunguo LI Yanshan LI Kang SONG Luxi YANG | 2016 | Science China(Information Sciences)2016，59，2： | 7 |
| 3 | Combined adaptive beamforming with space-time block coding for multi-antenna communications显示文摘Aiming at the multi-antenna communication systems, a downlink transmit scheme combining adaptive beamforming (ABF) with space-time block coding (STBC) is first presented, which utilizes the maximization of the output mean signal-to-noise ratio (SNR) and the minimization of the symbol error rate (SER) upper bound of the three widely used modulations as the design criteria. Then, based on the moment generating function (MGF) and the Gauss-Chebyshev integration, a simple and accurate numerical method is presented to analyze the SER performance of the system with the new transmit scheme under the three commonly used modulations. Finally, computer simulation results demonstrate the effectiveness and superiority of the proposed strategy. | LIN Min LI Min YANG LuXi LI Bin | 2008 | Science in China(Series F)2008，51，12： | 6 |
| 4 | Outage Probability Minimization for Low-Altitude UAV-Enabled Full-Duplex Mobile Relaying Systems显示文摘In this paper, a novel unmanned aerial vehicle(UAV)-enabled full duplex decode-and-forward(DF) technique is used in mobile relaying system. Compared with conventional static relaying, mobile relaying provides more degree of freedom for experiencing better channel conditions and further improving the system reliable performance. The source and relay transmit power as well as relay trajectory are jointly optimized for sum outage probability minimization in mobile relaying system. Due to the non-convex nature of the original problem, block coordinate decent optimization techniques are employed to decompose it into two sub-problems, which leads to an efficient iterative algorithm. Specifically, for the pre-determined relay trajectory, the optimal transmit power of source and relay are obtained by solving Karush-Kuhn-Tucker(KKT) conditions. For the given source/relay power allocation, the optimal UAV trajectory is obtained by solving dual problem. Based on the two steps, an iterative algorithm is proposed to jointly optimize source/relay power allocation and UAV trajectory alternately. Numerical results show the performance gain of our proposed scheme. | Meng Hua Yi Wang Zhengming Zhang Chunguo Li Yongming Huang Luxi Yang | 2018 | China Communications2018，15，5： | 5 |
| 5 | Functionalized metal-organic frameworks with strong acidity and hydrophobicity as an efficient catalyst for the production of 5-hydroxymethylfurfural显示文摘In the dehydration of fructose to 5-hydroxymethyl furfural(HMF),in situ produced water weakens the acid strength of the catalyst and causes the rehydration of HMF,causing unsatisfactory catalytic activity and selectivity.In this work,a class of benzenesulfonic acid-grafted metal-organic frameworks with strong acidity and hydrophobicity is obtained by the direct sulfonation method using 4-chlorobenzenesulfonic acid as sulfonating agent.The resultant MOFs have a specific surface area of greater than 250 m^(2)·g^(-1),acid density above 1.0 mmol·g^(-1),and water contact angle up to 129°.The hydrophobic MOF-PhSO_(3)H exhibits both higher catalytic activity and selectivity than MOF-SO_(3)H in the HMF synthesis due to its better hydrophobicity and olephilicity.Moreover,the catalyst has a high recycled stability.At last,fructose is completely converted,and 98.0%yield of HMF is obtained under 120℃ in a DMSO solvent system.The successful preparation of the hydrophobic acidic MOF provides a novel hydrophobic catalyst for the synthesis of HMF. | Huan Li Yao Zhong Luxi Wang Qiang Deng Jun Wang Zheling Zeng Xinxiang Cao Shuguang Deng | 2021 | Chinese Journal of Chemical Engineering2021，34，5： | 2 |
| 6 | Many-lined Sun Skinks(Mabuya multifasciata) Shift Their Thermal Preferences Downwards When Fasted显示文摘We maintained adult many-lined sun skinks(Mabuya multifasciata; 12 females and 12 males) collected from Hainan(southern China) in September 2006 in two outdoor enclosures to examine the effect of feeding condition on selected body temperature(Tsel).Skinks shifted their thermal preferences when fasted.Temporal variation in Tsel was not found within each sex feeding condition combination,and neither in fed nor in fasted skinks did the mean values for Tsel differ between sexes.Body temperatures selected by fed skinks fell within the range from 30.2 to 33.9 C,and those selected by fasted skinks within the range from 25.1 to 31.8 C.Body temperatures(31.8 0.3 C) selected by fed skinks were on average 4.0 C higher than those(27.8 0.4 C) selected by fasted skinks.Fasted skinks had no difficulty in attaining higher body temperatures,but they voluntarily shift their thermal preferences downwards to save energy.This finding suggests an adaptive mechanism adopted by many-lined sun skinks to enhance their fitness during the periods when food availability is low. | LI Hong MAO Luxi SHI Linqiang JI Xiang | 2010 | Asian Herpetological Research2010，1，1： | 2 |
| 7 | Characteristic and correlation analysis of influent and energy consumption of wastewater treatment plants in Taihu Basin显示文摘The water quality and energy consumption of wastewater treatment plants(WWTPs)in Taihu Basin were evaluated on the basis of the operation data from 204 municipal WWTPs in the basin by using various statistical methods.The influent ammonia nitrogen(NH3-N)and total nitrogen(TN)of WWTPs in Taihu Basin showed normal distribution,whereas chemical oxygen demand(COD),biochemical oxygen demand(BOD5),suspended solid(SS),and total phosphorus(TP)showed positively skewed distribution.The influent BOD5/COD was 0.4%-0.6%,only 39.2%SS/BOD5 exceeded the standard by 36.3%,the average BOD5/TN was 3.82,and the probability of influent BOD5/TP>20 was 82.8%.The average energy consumption of WWTPs in Taihu Basin in 2017 was 0.458 kWh/m^3.The specific energy consumption of WWTPs with a daily treatment capacity of more than 5×10^4 m^3 in Taihu Basin was stable at 0.33 kWh/m^3.A power function relationship was observed between the reduction in COD and NH3-N and the specific energy consumption of pollutant reduction,and the higher the pollutant reduction is,the lower the specific energy consumption of pollutant reduction presents.In addition,a linear relationship existed between the energy consumption of WWTPs and the specific energy consumption of influent volume and pollutant reduction.Therefore,upgrading and operation with less energy consumption of WWTPs is imperative and the suggestions for Taihu WWTPs based on stringent discharge standard are proposed in detail. | Luxi Zou Huaibo Li Shuo Wang Kaikai Zheng Yan Wang Guocheng Du Ji Li | 2019 | Frontiers of Environmental Science & Engineering2019，13，6： | 2 |
| 8 | Exposure assessment of phthalates in non-occupational populations in China显示文摘 | Chen Li Yon Zhao Luxi Li | 2012 | Science of the Total Environment2012，，： | 1 |
| 9 | Exposure assessmentof phthalates in non- occupational populations in China显示文摘 | LI Chen ZHAO Yan LI Luxi | 2012 | Science of the Total Environment2012，4274，： | 1 |
| 10 | Antenna selection for two-way full duplex massive MIMO networks with amplify-and-forward relay显示文摘In this paper, the antenna selection problem is investigated for the relaying system with the base station having massive multiple antennas, where the relay station works in the full duplex mode and the two-way protocol. The antenna selection scheme is optimized by maximizing the minimum of the two signal to noise ratios(SNRs) with each corresponding to the uplink and the downlink traffics. With the optimized antenna selection scheme, the approximate probability density function(PDF) of the received SNR for each receiver is derived. In what follows, both the overall outage probability and the bit error rate are obtained in the analytical expression for the whole massive multi-input multi-output(MIMO) system. Moreover, the asymptotic overall outage probability is derived in an analytical expression with respect to the growing number of the antennas on the massive MIMO base station. Numerical simulations verify the derived analytical results. | Kang SONG Chunguo LI Yongming HUANG Luxi YANG | 2017 | Science China(Information Sciences)2017，60，2： | 1 |
| 11 | Naphthalene diimide based near-infrared luminogens with aggregation-induced emission characteristics for biological imaging and high mobility ambipolar transistors显示文摘Organic conjugated materials combining high conductivity with strong solid-state emission are highly desired for organic electronic applications,yet still rather rare.Herein,a novel luminogen(TEN)comprised by linking naphthalene diimides and triphenyl ethylene with vinyl bridges is reported.TEN exhibits aggregation-induced emission(AIE)behavior of a strong nearinfrared fluorescence over 700 nm and the efficiency above 60.5%in the solid state,while also shows promising application in vivo bio-imaging with good permeability and extremely low background.Single crystal of TEN reveals intra-and intermolecular C–H…O hydrogen bonds,contributing to an inclined molecular stacking along the a-axis of the cell,creating a 1 D charge carrier transporting channel under a shortπ-πinteraction distance of 3.42?,which might benefit the solid emission and charge transport ability simultaneously.Solution processed bottom contact,top gate organic field effect transistors based on TEN reveal a high ambipolar charge transport ability with the hole mobility up to 0.13 cm2 V-1 s-1 and electron mobility up to0.010 cm2 V-1 s-1.Further atomic force microscopy and X-ray diffraction analysis on TEN thin film confirm the existence of the1 Dπ-πstacking channel,suggesting the stacking geometry revealed in crystal crucial for facilitating high charge carrier mobility while preserving the strong solid emission at the same time. | De Guo Lin Li Xianqi Zhu Martin Heeney Jing Li Lichun Dong Qingsong Yu Zhihua Gan Xinggui Gu Luxi Tan | 2020 | Science China Chemistry2020，63，9： | 1 |
| 12 | The oxidative DNA damage response: A review of research undertaken with Tsinghua and Xiangya students at the University of Pittsburgh显示文摘Endogenous stress and exogenous toxicants(chemicals and UV light) alter genetic information either directly or indirectly through the production of reactive oxygen species(ROS), thereby driving genomic instability in cells and promoting tumorigenesis. All living cells try to faithfully preserve and transmit their genomic information from one generation to the next using DNA repair mechanisms to repair oxidative DNA damage to prevent cancer or premature aging. Oxidative DNA damage comprises a mixture of DNA lesions including base damage, DNA single strand breaks(SSBs), and DNA double strand breaks(DSBs). This review summarizes some of the studies on DNA damage response at a defined genome locus that are performed by students from the Tsinghua University School of Medicine and the School of Medicine of Central South University(Xiangya Hospital) at the University of Pittsburgh School of Medicine. A summary of their work highlights the continuous contribution of the students to a particular research program and exemplifies the achievements of this China-U.S. collaborative training program. | S.Levine Luxi Sun Rong Tan Ying Gao Lu Yang Hao Chen Yaqun Teng Li Lan | 2017 | Science China(Life Sciences)2017，60，10： | 1 |
| 13 | Exposure assessment of phthalates in non-occupational populations in China显示文摘 | LICHEN ZHAO YAN LI LUXI | 2012 | Science of the Total Environment2012，，427428： | 1 |
| 14 | Exposure assessment of phthalates in non-occupational populations in China 显示文摘 | Chen Li Yan Zhao Luxi Li | 2012 | Science of the Total Environment2012，428，： | 1 |
| 15 | Exposure assess- ment of phthalates in non - occupational populations in Chi- na显示文摘 | CHEN Li ZHAO Yan LI Luxi | 2012 | Sci Total Environ2012，428，： | 1 |
| 16 | Optimal remote radio head selection for cloud radio access networks显示文摘The cloud radio access network(C-RAN) promises significant gain to the data rate over the LTEadvanced by transferring the burdensome baseband signal processing from the remote radio heads(RRHs) to the baseband unit via the front-haul. However, scalable improvement of the overall throughput may not be maintained due to limited front-haul capacity. In this paper, we study the throughput maximization problem by selecting the active RRHs. In particular, we develop an optimum algorithm which selects a subset of active RRHs that maximize the system throughput under the front-haul constraint. In addition, the asymptotically optimum number of RRHs is derived in closed-form for low and high signal-to-noise ratio(SNR) regimes. It is demonstrated that the proposed RRH selection scheme outperforms any other existing schemes with substantial gain of achievable throughput for any given number of RRHs and any predetermined front-haul capacity constraints. | Chunguo LI Kang SONG Dongming WANG Fu-Chun ZHENG Luxi YANG | 2016 | Science China(Information Sciences)2016，59，10： | 1 |
| 17 | Two-way MIMO relay precoder design with channel state information显示文摘 | Chunguo Li Luxi Yang Wei-Ping Zhu | | 0，，12： | 1 |
| 18 | Two-way MIMO relay pre- coder design with channel state information 显示文摘 | LI Chungno YANG Luxi ZHU Weiping | 2010 | IEEE Transactions on Communications2010，58，12： | 1 |
| 19 | A joint source and relay power allocation scheme for a class of MIMO relay systems显示文摘 | Chunguo Li Xiang Wang Luxi Yang Wei-Ping Zhu | 2009 | IEEE Transactions on Signal Processing2009，57，12： | 1 |
| 20 | An asymptotically optimal cooperative relay scheme for two-way relaying protocol显示文摘 | Chunguo Li Luxi Yang Yuhui Shi | 2010 | IEEE Signal Processing Letters2010，17，2： | 1 |
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