|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A Novel Analysis of Delay and Power Consumption for Polling Schemes in the IoT显示文摘In the Internet of Things(IoT), various battery-powered wireless devices are connected to collect and exchange data, and typical traffic is periodic and heterogeneous. Polling with power management is a very promising technique that can be used for communication among these devices in the IoT. In this paper, we propose a novel and scalable model to study the delay and the power consumption performance for polling schemes with power management under heterogeneous settings(particularly the heterogeneous sleeping interval). In our model,by introducing the concept of virtual polling interval, we successfully convert the considered energy-efficient polling scheme into an equivalent purely-limited vacation system. Thus, we can easily evaluate the mean and variance of the delay and the power consumption by applying existing queueing formulae, without developing a new theoretical model as required in previous works. Extensive simulations show that our analytical results are very accurate for both homogeneous and heterogeneous settings. | Li Feng Jiguo Yu Feng Zhao Honglu Jiang | 2017 | Tsinghua Science and Technology2017，22，4： | 3 |
| 2 | Quantum properties of the binomial state field interacting with a two-level atom显示文摘By the method of coherent-state orthogonalization expansion,the atomic inversion and the anti-bunching effect in a two-level atomic system interacting with binomial state field are studied under the Jaynes-Cummings model without rotating wave approximation.The influence of the parameter and the detuning on the anti-bunching effect are discussed,and the anti-bunching effect is also discussed under the conditions of strong coupling.Our studies show that the second order coherence degrees are quite different between the situations of with and without-rotating wave approximation.For the latter when the detuning increases,the duration of the bunching effect increases at the beginning and then decreases,and finally the light field displays anti-bunching effect completely. | JIANG DaoLai,REN XueZao,CONG HongLu & LI Lei School of Science,Southwest University of Science and Technology,Mianyang 621010,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，5： | 2 |
| 3 | Cell-nucleus structured electrolyte for low-temperature aqueous zinc batteries显示文摘Rechargeable aqueous zinc(Zn) batteries hold great promise for large-scale energy storage,but their implementation is plagued by poor Zn reversibility and unsatisfactory low-temperature performance.Herein,we design a cell-nucleus structured electrolyte by introducing low-polarity 1,2-dimethoxyethane(DME) into dilute 1 M zinc trifluoromethanesulfonate(Zn(OTf)_(2)) aqueous solution,which features an OTf--rich Zn2^(+)-primary solvation sheath(PSS,inner nucleus) and the DMEmodulated Zn^(2+)-outer solvation sheath(outer layer).We find that DME additives with a low dosage do not participate in the Zn2+-PSS but reinforce the Zn-OTf-coordination,which guarantees good reaction kinetics under ultralow temperatures.Moreover,DME breaks the original H-bonding network of H2O,depressing the freezing point of electrolyte to-52.4℃.Such a cell-nucleus-solvation structure suppresses the H_(2)O-induced side reactions and forms an anion-derived solid electrolyte interphase on Zn and can be readily extended to 1,2-diethoxyethane.The as-designed electrolyte enables the Zn electrode deep cycling stability over 3500 h with a high depth-of-discharge of 51.3% and endows the Zn‖V_(2)O_(5)full battery with stable cycling over 1000 cycles at 40℃.This work would inspire the solvation structure design for low-temperature aqueous batteries. | Yang Dong Ning Zhang Zhaodong Wang Jinhan Li Youxuan Ni Honglu Hu Fangyi Cheng | 2023 | Journal of Energy Chemistry2023，，8： | 2 |
| 4 | A COPII subunit interacting with ER-phagy receptor:a new potential avenue to maintaining neuronal homeostasis显示文摘Endoplasmic reticulum(ER)-associated degradation(ERAD)plays an essential role in protein quality control in the ER.It acts through recognizing misfolded or unassembled proteins and retrotranslocating them across the ER membrane into the cytosol for degradation.ER-phagy,which is an ERAD pathway,also controls the quality and abundance of proteins and organelles by activating ERresident receptors.ER membrane is the important site of initiation for phagophores(crescent-shaped membranes that form and mature into autophagosomes);however,specific sites that are restricted on ER during ER-phagy remain to be identified.Recently,Cui et al.[1]found that a COPII coat subunit,Lstl/SEC24C-Sec23,plays an unconventional role in targeting ER domains for degradation of the ER-phagy receptor,which makes them essential to ER-phagy. | Shifang Huang Mingzhu Tang Honglu Jiang Yuting Li Haoliang Hu | 2020 | Acta Biochimica et Biophysica Sinica2020，52，6： | 1 |
| 5 | Anionic formulation of electrolyte additive towards stable electrocatalytic oxygen evolution in seawater splitting显示文摘Hydrogen generation through seawater electrolysis provides a promising,attractive pathway towards the utilization of sustainable energy.However,the catalytic activity and stability of oxygen evolution anode are severely limited by the chloride-induced corrosion and competitive oxidation reactions.In this work,we demonstrate an anion-assisted performance improvement strategy by quick and universal screening of electrolyte additive via correlating Cl-repellency with the anionic properties.Particularly,the addition of phosphate ions is found to enable highly stable alkaline seawater splitting at industry-level current density(0.5 A cm^(-2))over 500 h using transition metal hydroxides as anodic electrocatalysts.In situ experiments and theoretical simulations further reveal that the dynamic anti-corrosion behaviors of surface-adsorbed phosphate ions are attributed to three factors including repelling Cl-ions without significantly blocking OH-diffusion,preventing transition metal dissolution and acting as a local pH buffer to compensate the fast OH-consumption under high current electrolysis. | Meng Yu Jinhan Li Fangming Liu Jiuding Liu Wence Xu Honglu Hu Xijie Chen Weichao Wang Fangyi Cheng | 2022 | Journal of Energy Chemistry2022，31，9： | 1 |
| 6 | Enhanced bed load sediment transport by unsteady flows in a degrading channel显示文摘Laboratory flume experiments were done to investigate bed load sediment transport by both steady and unsteady flows in a degrading channel. The bed, respectively composed of uniform sand, uniform gravel,or sand-gravel mixtures, always undergoes bulk degradation. It is found that both uniform and nonuniform bed load transport is enhanced greatly by unsteady flows as compared to their volumeequivalent steady flows. This enhancement effect is evaluated by means of an enhancement factor, which is shown to be larger with a coarser bed and lower discharges. Also, the fractional transport rates of gravel and sand in non-uniform sand-gravel mixtures are compared with their uniform counterparts under both steady and unsteady flows. The sand is found to be able to greatly promote the transport of gravel, whilst the gravel considerably hinders the transport of sand. Particularly, the promoting and hindering impacts are more pronounced at lower discharges and tend to be weakened by flow unsteadiness. | Zhijing Li Honglu Qian Zhixian Cao Huaihan Liu Gareth Pender Penghui Hu | 2018 | International Journal of Sediment Research2018，33，3： | 1 |
| 7 | Differences in left and right carotid plaque vulnerability in patients with bilateral carotid plaques:a CARE-II study显示文摘Background and purpose Atherosclerosis is a very complex process influenced by various systemic and local factors.Therefore,in patients with bilateral carotid plaques(BCPs),there may be differences in carotid plaque vulnerability between the sides.We aimed to investigate the differences in BCP characteristics in patients with BCPs using magnetic resonance vessel wall imaging(MR-VWI).Methods Participants with BCPs were selected for subanalysis from a multicentre study of Chinese Atherosclerosis Risk Evaluation II.We measured carotid plaque burden,identified each plaque component and measured their volume or area bilaterally on MR-VWI.Paired comparisons of the burden and components of BCPs were performed.Results In all,540 patients with BCPs were eligible for analysis.Compared with the right carotid artery(CA),larger mean lumen area(p<0.001),larger mean wall area(p=0.025),larger mean total vessel area(p<0.001)and smaller normalised wall index(p=0.006)were found in the left CA.Regarding plaque components,only the prevalence of lipid-rich necrotic core(LRNC)in the left CA was higher(p=0.026).For patients with a vulnerable plaque component coexisting on both sides,only the intraplaque haemorrhage(IPH)volume(p=0.011)was significantly greater in the left CA than in the right CA.Conclusions There were asymmetries in plaque growth and evolution between BCPs.The left carotid plaques were more likely to have larger plaque burden,higher prevalence of LRNC and greater IPH volume,which may contribute to the lateralisation of ischaemic stroke in the cerebral hemispheres. | Sai Shao Honglu Shi Guangbin Wang Rui Li Qinjian Sun Bin Yao Hiroko Watase Daniel S Hippe Chun Yuan Xihai Zhao | 2023 | Stroke & Vascular Neurology2023，8，4： | 1 |
| 8 | Effects of sodium butyrate on the differentiation of pancreatic and hepatic progenitor cells from mouse embryonic stem cells显示文摘 | MengRen LiYan Chang‐ZhenShang JunCao Li‐HongLu JunMin HuaCheng | 2009 | J Cell Biochem2009，，1： | 1 |
| 9 | Nonlinear Dynamic Analysis and Fatigue Study of Steep Wave Risers Under Irregular Loads显示文摘As a reliable alternative option for traditional steel catenary risers(SCRs),steep wave risers(SWRs)have been widely applied to deepwater oil and gas production.However,the nonlinear dynamic analysis of SWRs is more complicated than that of traditional SCRs due to their special configuration and significant geometric nonlinearity.Moreover,SWRs are highly susceptible to fatigue failure under the combined excitation of irregular waves and top floater motions(TFMs).In this study,considering irregular waves and TFMs,a numerical SWR model with an internal flow is constructed based on the slender rod model and finite element method.The Newmark-βmethod is adopted to solve the dynamic behavior of SWR.Moreover,the Palmgren-Miner rule,a specified S-N curve,and rainflow counting method are applied to estimate the fatigue damage.An efficient numerical computation procedure,i.e.,DRSWR,is programmed with MATLAB in this study.Calculation results are compared with those of OrcaFlex to verify the accuracy of the DRSWR.The nonlinear dynamic response and fatigue damage of an SWR under the combined excitation of irregular waves and TFMs are obtained,and a comprehensive parametric analysis is then conducted.The analysis results show that the buoyancy section undergoes the highest level of stress and fatigue damage under the combined excitation of irregular waves and TFMs.An internal flow with high velocity and high density produces a high level of fatigue damage.The buoyancy factor and length of the buoyancy section should be set moderately to reconcile the reduction of the top tension with increased fatigue life.These results are expected to provide some reference significance for the engineering design of SWR. | GU Honglu GUO Haiyan LI Xiaomin LI Fuheng LIU Zhen | 2022 | Journal of Ocean University of China2022，21，3： | 0 |
| 10 | S19W,T27W,and N33OY mutations in ACE2 enhance SARS-CoV-2 S-RBD binding toward both wild-type and antibody-resistant viruses and its molecular basis显示文摘SARS-CoV-2 recognizes,via its spike receptor-binding domain(S-RBD),human angiotensin-converting enzyme 2(ACE2)to initiate infection.Ecto-domain protein of ACE2 can therefore function as a decoy.Here we show that mutations of S19W,T27W,and N330Y in ACE2 could individually enhance SARS-CoV-2 S-RBD binding.Y330 could be synergistically combined with either W19 or W27,whereas W19 and W27 are mutually unbeneficial.The structures of SARS-CoV-2S-RBD bound to the ACE2 mutants reveal that the enhan ced binding is mainly con tributed by the van der Waals interactio ns mediated by the aromatic side-chai ns from W19,W27,and Y330.While Y330 and W19/W27 are distantly located and devoid of any steric interference,W19 and W27 are shown to orient their side-chains toward each other and to cause steric conflicts,explai ning their in compatibility.Finally,using pseudotyped SARS-CoV-2 viruses,we dem on strate that these residue substitutions are associated with dramatically improved entry-inhibition efficacy toward both wild-type and antibody-resistant viruses.Taken together,our biochemical and structural data have delineated the basis for the elevated S-RBD binding associated with S19W,T27W,and N330Y mutations in ACE2,paving the way for potential application of these mutants in dinical treatment of COVID-19. | Fei Ye Xi Lin Zimin Che Fanli Yang Sheng Lin Jing Yang Hua Chen Honglu Sun Lingling Wang Ao Wen Xindan Zhang Yushan Dai Yu Cao Jingyun Yang Guobo Shen Li Yang Jiong Li Zhenling Wang Wei Wang Xiawei Wei Guangwen Lu | 2021 | Signal Transduction and Targeted Therapy2021，6，10： | 0 |
| 11 | New spatial quadrature modulation scheme for indoor visible light communication systems显示文摘In this paper,a new spatial quadrature modulation(NSQM)scheme is proposed to improve the error performance of indoor visible light communication(VLC)systems.NSQM is different from generalized spatial quadrature modulation(SQM)in two aspects.First,the transmitted optical signal is directly detected at the receiver,which does not need to estimate the indices of the transmitted antenna.Second,an optimization approach is used with NSQM to minimize the upper error bound of the transmitted signals.In addition,several NSQM schemes are described in detail.Numerical results show that the proposed NSQM scheme achieves superior error performance compared with the SQM scheme. | Li Zongyan Li Jiahui Yu Honglu Li Shiyin | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，2： | 0 |
| 12 | Deformation and Stress Analysis of the Deepwater Steel Lazy Wave Riser Subjected to Internal Solitary Waves显示文摘The dynamic response of the steel lazy wave riser(SLWR)subjected to the internal solitary wave is a key to assessing its application feasibility.The innovation of this paper is to study the dynamic response properties of the SLWR with large deformation characteristics under internal wave excitation.A numerical scheme of the SLWR is constructed using the slender-rod theory,and the internal solitary wave(ISW)with a two-layer seawater model is simulated by the extended Korteweg-deVries equation.The finite element method combined with the Newmark-βmethod is applied to discretize the equations and update the time integration.The ISW excitation combined with vessel motion on the dynamic deformation and stress of the SLWR is investigated,and extensive simulations of the ISW parameters,including the interface depth ratio and density difference,are carried out.Case calculation reveals that the displacement of the riser in the lower interface layer increases significantly under the ISW excitation,and the stresses at a part of both ends grow evidently.Moreover,the mean value of riser responses under a combination of vessel motion and ISW coincides with the ISW-induced ones.Furthermore,the dynamic responses along the whole riser,including the displacement amplitudes,bending moment amplitudes,and stress amplitudes,almost increase with the increase in interface depth ratios and density differences. | LI Fuheng GUO Haiyan GU Honglu LIU Zhen LI Xiaomin | 2023 | Journal of Ocean University of China2023，22，2： | 0 |
| 13 | Evaluation of dual crop coefficient approach on evapotranspiration calculation of cherry trees显示文摘A simple way to estimate tree evapotranspiration is needed for orchard irrigation schedules and water management practice,and the dual crop coefficient(DCC)approach provides such a method.Plot experiments on cherry trees were conducted in an orchard of Beijing,China,from 2011 to 2013,to test the suitability and reliability of the DCC method.The calculated results from the DCC method were compared with those directly measured by water balance(WB)and sap flow(SF)methods.Results showed that total evapotranspiration in the whole growth period of cherry trees obtained by WB,SF and DCC methods was 560.0-569.3 mm,544.7-569.8 mm and 564.1-574.6 mm,respectively.The Nash-Sutcliffe efficiency(NSE)and the ratio of root-mean-square error to the standard deviation of measured data(RSR)showed that the calculated total evapotranspiration by DCC method was consistent to that measured by the WB method at above“Satisfactory”level(0.500.70)for the monthly evapotranspiration and as“Satisfactory”for the total evapotranspiration,respectively when compared with the WB and SF methods.Crop coefficients for the whole growth period were similar for all three methods,but the crop coefficient suggested by the DCC method was larger at the beginning and the late growth stages but smaller at the vigorous growth stage of cherry trees than those measured by using the WB and SF methods.It can be concluded that the DCC method is an effective tool to estimate total evapotranspiration in the whole growth period of cherry tree,but an improvement on accuracy of estimating monthly evapotranspiration of cherry trees is required. | Tong Guodong Liu Honglu Li Fahu | 2016 | International Journal of Agricultural and Biological Engineering2016，9，3： | 0 |
| 14 | Analysis about the Characteristics and Formation Mechanism of a Serious Pollution Event in Beijing in October 2014显示文摘In this paper,atmospheric environmental background,weather conditions and formation mechanism of one typical air pollution episode in Beijing during October 6^(th)-12^(th),2014 were investigated by combining observed data with numerical model CAMx.Results showed that the occurrence of heavy air pollution resulted mainly from stable atmospheric conditions regionally or locally.Observed heavy pollution episodes were characterized by a stagnant atmospheric structure with average wind speed of 1.56 m/s,high humidity of 83.13%,large inversion strength of 3.42 ℃/100 m which were disadvantageous to the dispersal of air pollutants.The air pollution episode during October 8^(th)-11^(th) was the most serious with daily average PM_(2.5) concentration of 264 μg/m^3 in Beijing,and heavily polluted land area at Beijing,Tianjin and Hebei districts was about 2 × 10~5 km^2.Model research showed that regional transmission contributions to the receptor sites in Beijing were between 61%-69%during 8^(th)-11^(th),and regional transportation played a more important role in this serious air pollution episode. | Li Honglu Li Shanshan Zhang Xiaoqin Sun Rongji Cheng Bingfen | 2015 | Meteorological and Environmental Research2015，6，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员