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| 1 | Solving traveling salesman problems using generalized chromosome genetic algorithm显示文摘Generalized chromosome genetic algorithm (GCGA) was proposed for solving generalized traveling salesman problems (GTSP) as reported in the authors’ earlier work. Theoretically, the GCGA could also be used to solve the classical traveling salesman problem (CTSP), which has not been reported by others. In this paper, the generalized chromosome characteristics are analyzed and the feasibility for consistently solving the GTSP and CTSP is verified. Numerical experiments show the advantages of the GCGA for solving a large- scale CTSP. | Jinhui Yang Chunguo Wu Heow Pueh Lee Yanchun Liang | 2008 | Progress in Natural Science:Materials International2008，18，7： | 15 |
| 2 | Targeted Mutagenesis of NAC Transcription Factor Gene,OsN AC041,Leading to Salt Sensitivity in Rice显示文摘Salinity is a major abiotic stress factor that seriously affects plant growth. Many genes are involved in the response to salt stress with various metabolism pathways. A number of plant transcription factor family genes have been found to be involved in the salt stress response, and NAM, ATAF and CUC(NAC) transcription factors are thought to act as active regulators during abiotic stress, especially salt stress. In this study, we detected a rice NAC transcription factor coding gene, OsNAC041, and confirmed that it influenced the germination of seeds under salt stress and salt tolerance of plants. OsNAC041 was primarily expressed in the leaves and located in the nucleus. Furthermore, the CRISPR/Cas9 method was used to obtain a targeted osnac041 mutant, of which the plant height was higher than that of the wild-type, showing increased salt sensitivity. Moreover, RNA-seq analysis revealed a number of differentially expressed genes(DEGs) involved in several important signaling pathways in the osnac041 mutant. Subsequently, Kyoto Encyclopedia of Genes and Genomes annotation also revealed differential expression of DEGs associated with mitogen-activated protein kinase signaling, peroxisome, eukaryotictype ABC transporters, photosynthesis and plant hormones, which are involved in stress-related signaling pathways. Overall, our study suggested that OsNAC041 was involved in the salt stress response in rice. These findings not only provide empirical evidence of OsNAC041 function, but also provide new insight into its potential application in rice resistance breeding. | WANG Bo ZHONG Zhaohui ZHANG Huanhuan WANG Xia LIU Binglin YANG Lijia HAN Xiangyan YU Deshui ZHENG Xuelian WANG Chunguo SONG Wenqin CHEN Chengbin ZHANG Yong | 2019 | Rice science2019，26，2： | 8 |
| 3 | 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 |
| 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 | Mantle melting factors and amagmatic crustal accretion of the Gakkel ridge, Arctic Ocean显示文摘Spreading rate is a primary factor of mantle melting and tectonic behavior of the global mid-ocean ridges. The spreading rate of the Gakkel ridge decreases gradually from west to east. However, the Gakkel ridge can be divided into four thick-and-thin zones with varying crustal thicknesses along ridge axis. This phenomenon indicates that mantle melting of the Gakkel ridge is not a simple function of spreading rate. Mantle temperature, water content,mantle composition, and other factors are important in crustal accretion processes. Based on gravity-derived crustal thickness and wet melting model, we estimate that the mantle potential temperatures of the four zones are1 270, 1 220, 1 280, and 1 280°C(assuming that mantle water content equals to global average value), with corresponding mantle water contents of 210, 0, 340, and 280 mg/kg(assuming that mantle potential temperature is 1 260°C), respectivly. The western thinned crust zone is best modeled with low mantle temperature, whereas the other zones are mainly controlled by the enhanced conduction caused by the slower spreading rate. Along the Gakkel ridge, the crustal thickness is consistent with rock samples types. Predominated serpentinized peridotite and basalt are found in the area with crustal thickness <1.5 km and >2.5 km, respectively. The rock samples are including from basalt to peridotite in the area with crustal thickness between 1.5 and 2.5 km. Based on this consistency, the traditional magmatic accretion zone accounted for only 44% and amagmatic accretion accounted for 29% of the Gakkel ridge. The amagmatic accretion is a significant characteristic of the ultra-slow spreading ridge. | ZHANG Tao GAO Jinyao CHEN Mei YANG Chunguo SHEN Zhongyan ZHOU Zhiyuan WU Zhaocai SUN Yunfan | 2015 | Acta Oceanologica Sinica2015，34，6： | 3 |
| 6 | Summarization on variable liquid thrust rocket engines显示文摘The technology actuality and development trend of variable thrust rocket engines at home and abroad are summarized. Key technologies of developing variable thrust rocket engines are analyzed. Development advices on developing variable thrust rocket engines that are adapted to the situation of our country are brought forward. | YUE ChunGuo LI JinXian HOU Xiao FENG XiPing YANG ShuJun | 2009 | Science China(Technological Sciences)2009，52，10： | 2 |
| 7 | 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 |
| 8 | Estimation of annual variation of water vapor in the Arctic Ocean between 80°–87°N using shipborne GPS data based on kinematic precise point positioning显示文摘The measurement of atmospheric water vapor(WV) content and variability is important for meteorological and climatological research. A technique for the remote sensing of atmospheric WV content using ground-based Global Positioning System(GPS) has become available, which can routinely achieve accuracies for integrated WV content of 1–2 kg/m2. Some experimental work has shown that the accuracy of WV measurements from a moving platform is comparable to that of(static) land-based receivers. Extending this technique into the marine environment on a moving platform would be greatly beneficial for many aspects of meteorological research, such as the calibration of satellite data, investigation of the air-sea interface, as well as forecasting and climatological studies. In this study, kinematic precise point positioning has been developed to investigate WV in the Arctic Ocean(80°–87°N) and annual variations are obtained for 2008 and 2012 that are identical to those related to the enhanced greenhouse effect. | LUO Xiaowen ZHANG Tao GAO Jinyao YANG Chunguo WU Zaocai | 2015 | Acta Oceanologica Sinica2015，34，6： | 1 |
| 9 | Progress in Antarctic marine geophysical research by the Chinese Polar Program显示文摘Marine geophysical survey by the Chinese National Antarctic Research Expedition(CHINARE) began with the first science expedition in 1984/1985, although only four cruises were performed in the vicinity of the Antarctic Peninsula between then and 1991/1992. After a 20 year hiatus, Antarctic marine geophysical research was relaunched by the Chinese Polar Environmental Comprehensive Investigation and Assessment Programs(known simply as the Chinese Polar Program) in 2011/2012. Integrated geophysical surveys have been carried out annually since, in Prydz Bay and the Ross Sea. During the last 5 years, we have acquired about 5500 km of bathymetric, gravimetric, and magnetic lines; more than 1800 km of seismic reflection lines; and data from several heat flow and Ocean Bottom Seismometer(OBS) stations. This work has deepened understandings of geophysical features and their implications for geological tectonics and glacial history in Antarctica and its surrounding seas. Compiled Antarctic Bouguer and Airy isostatic gravity anomalies show different features of tectonics between the East Antarctic stability and West Antarctic activity. Calculated magnetic anomalies, heat flow anomalies and lithospheric anisotropy offshore of Prydz Bay may imply high heat capacity of mantle shielded by the continental shelf lithosphere, but high heat dissipation of mantle due to the Cretaceous breakup of Gondwana along the continent and ocean transition(COT), where large sediment ridges would be brought about by the Oligocene ice sheet retreat and would enlarge free-air gravity anomalies. In the western Ross Sea, CHINARE seismic profiles indicate northern termination of the Terror Rift and deposition time of the grounding zone wedge in the northern JOIDES Basin. | GAO Jinyao SHEN Zhongyan YANG Chunguo WANG Wei JI Fei WU Zhaocai NIU Xiongwei DING Weifeng LI Dongxu ZHANG Qiao | 2017 | Advances in Polar Science2017，28，4： | 1 |
| 10 | 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 |
| 11 | Glacial bedforms in the Northwind Abyssal Plain,Chukchi Borderland显示文摘A series of sub-parallel linear glacial scours are identified on the crest of the Baoshi Seamount in the Northwind Abyssal Plain by compiling new multibeam data acquired during the 9 th Chinese Arctic Research Expedition(CHINARE-Arc9)in 2018 and previously published data.The new data reveal scours that developed at water depths of 850–1030 m with an orientation of about 75°/255°.The maximum water depth occurs in the southernmost scour and is deeper than that from previous investigations,which showed a maximum scouring depth of about 900 m on the seamount.The topographic and geomorphological characteristics suggest that these scours resulted from erosion by the ice shelf extending from the Chukchi margin and/or Laurentide Ice Sheet that grounded on the crest of the seamount and moved in a NE–SW direction.Other possibilities of their genesis include armadas of large icebergs/multi-keel icebergs calved from the Chukchi Shelf or the Laurentide Ice Sheet.The new data provide new constraints for assessing the extent and volume of the ice sheet in the Chukchi area during glacial maxima. | Zhongyan Shen Tao Zhang Jinyao Gao Chunguo Yang Qingsheng Guan | 2021 | Acta Oceanologica Sinica2021，40，5： | 1 |
| 12 | Two-way MIMO relay precoder design with channel state information显示文摘 | Chunguo Li Luxi Yang Wei-Ping Zhu | | 0，，12： | 1 |
| 13 | 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 |
| 14 | 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 |
| 15 | An Asymptotically Optimal Cooperative Relay Scheme for Two-Way Relaying Protocol 显示文摘 | Li Chunguo Yang Luxi | 2007 | IEEE Signal Processing Letters2007，17，2： | 1 |
| 16 | Niao Chao Hill——Study of supporting techniques for China’s first international undersea feature name显示文摘In recent years, Sub-Committee on Undersea Feature Names (SCUFN) has been conducting deliberations on naming undersea features that are entirely or mainly (more than 50%) outside the external limits of the territorial sea,adhering to the principles of not involving sovereignty dispute between countries. | TAO ChunHui LI ShouJun SONG ChengBing CHENG YongShou YANG ChunGuo HE YongHua ZHOU Yang DENG XianMing GAO JinYao QIU Lei | 2012 | Science China Earth Sciences2012，55，10： | 0 |
| 17 | Preliminary Species Identification of Parasitic Nematodes from Rhizosphere Soil of Grapes in Mengzi City显示文摘The grape cultivation area in Luolongzhuang of Wenlan,Yingfang,Liucun and Shiqicun of Caoba in Mengzi City,Yunnan Province were surveyed from October 2014 to February 2015. Using five-point sampling method,approximately 2 kg of rhizosphere soil were collected from plants with weak growth and brown and wilting root,and 28 soil samples in total were collected. Through morphological identification,the species of parasitic nematodes in rhizosphere soil of grapes were preliminarily identified. There were three genera and four species of parasitic nematodes in grape,including A. avenae( Aphelenchus avenae Bastian,1865),R. reniformis( Rotylenchulus reniformis Linford et Oliverira,1940),H. dihytera [Helicotylenchus dihytera Sher Cobb,1893,1961] and H. pseudorobustus [Helicotylenchus pseudorobustus Golden( Steiner,1914),1956]. | Lin Lifei Liu Chunguo Yang Li Long Yaoyun Hu Xianqi | 2017 | Plant Diseases and Pests2017，8，2： | 0 |
| 18 | Bedrock samples from the Chukchi Borderland, Arctic Ocean——First Chinese dredge in the polar regions显示文摘The Chukchi Borderland is a relict continental block in the Arctic Ocean.Its origin and tectonic processes are of great significance for understanding the formation model of the Amerasia Basin and the configurations of the Mesozoic Arctic regions.Due to the harsh environment and rare geological and geophysical data,the evolution of the Chukchi Borderland is still unclear(e.g.,Grantz et al.,1998,2011).We conducted two rock dredges and a multibeam full coverage survey of 830 km2 in the Northwind Abyssal Plain of the Chukchi Borderland during the Chinese ninth Arctic scientific expedition in 2018.This is the first rock dredge survey of China in the polar regions with floating ice,and is just after the HLY0905 dredge at the Northwind Abyssal Plain in 2009(Mayer and Armstrong,2011).The retrieved samples will provide new information for understanding the origin and tectonic evolution of the Chukchi Borderland. | Tao Zhang Yanhui Dong Chunguo Yang Qingsheng Guan Jinyao Gao | 2019 | Acta Oceanologica Sinica2019，38，11： | 0 |
| 19 | Wenjing Zhitong recipe exhibits potential anti-primary dysmenorrhea properties by inhibiting COX2 and PKC signaling pathway in rats induced by estradiol benzoate and oxytocin显示文摘Objective:To explore the effect and mechanism of action of the Wenjing Zhitong recipe(WZR)in primary dysmenorrhea(PD)treatment.Methods:Uterine contractions were induced by estradiol benzoate and oxytocin in a PD model and WZR was administrated.The rate of change in uterine contractility and the writhing test were used to evaluate the effects of WZR.The serum levels of prostaglandin F_(2a)(PGF_(2a))and prostaglandin E_2(PGE_2),and the activity of cyclooxygenase-2(COX2)were detected by enzyme-linked immunosorbent assay(ELISA).The changes in phosphor-phospholipase C(pPLC/PLC),phosphor-protein kinase C(pPKC/PKC),and connexin 43(CX43)expression were detected using immunohistochemistry and western blot.Results:WZR significantly reduced the rate of change in uterine contractility and writhing times in the PD model.WZR treatment inhibited the enzymatic activity of COX2 and reduced the levels of PGF_(2a),PGF_(2a)/PGE2and COX2 in the PD model.WZR also significantly reduced the expression of pPLC/PLC,pPKC/PKC and CX43.Targeting the inhibition of COX2 activity,caffeic acid and 1-acetyl-β-carboline were validated as the active ingredients in WZR responsible for reducing uterine contractions.Conclusion:WZR attenuated PD by inhibiting COX2 activity,downregulating PGF_(2a)/PGE_2 expression,and inhibiting the PKC signaling pathway. | Jialin Li Xiaoyao Liu Mei Jiang Yantong Xu Chunguo Wang Yujie Hu Song Yang Jian Gao Weiling Wang Ting Wang | 2023 | Journal of Traditional Chinese Medical Sciences2023，10，3： | 0 |
| 20 | Monitoring Efficiency Evaluation of the Well-water-level Observation Network in China显示文摘In order to understand the monitoring efficiency status of the well-water-level observation network in China after the completion of the 10 th 'Five-year Plan ' digital network project,and to provide a basis for the future network optimization and equipment updating, the monitoring efficiency of the well-water-level observation network was evaluated. On the whole,61. 8% observing stations have good monitoring effectiveness,the observation environment of 73. 5% of observing stations meets the monitoring requirements of well-water-level. The operation status of the network is as a whole getting better,operation rates of 75% observing instruments are above 95%. Most well water levels can monitor crustal stress changes and seismic activities. However,some observation stations,due to inherent deficiency in wells,environmental disturbance,instrument aging,and low-level operation and maintenance,need to improve the monitoring efficiency level by taking measures such as observation environment improvement,equipment updating,and management training. About 6. 5% of the stations need to stop observation due to the unqualified observational environment. | Liu Chunguo Kong Lingchang Yang Zhuzhuan Fan Chunyan Chen Huajing | 2016 | Earthquake Research in China2016，30，1： | 0 |
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