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| 1 | Optimization based accurate scheduling for generation and reserve of power system显示文摘With the improvement of electricity markets,the gradual aggravation of energy shortage and the environment pollution,it is urgent to formulate a new model to precisely satisfy the system demand for energy and reserve.Currently,power system opti-mization dispatching is always formulated as a discrete-time scheduling model.In this paper,we first demonstrate through an example that the upper and lower bounds of spinning reserve offered by a unit,given in the discrete-time model framework as constraints,is unreachable.This causes the problem that the reserve delivery obtained by the discrete-time scheduling model cannot be carried out precisely.From the detailed analysis of the ramp rate constraints,it is proved that the reachable upper and lower bounds of spinning reserve in every period can be expressed as functions of two variables,i.e.,generation level of unit at the start and end of this period.Thus,a new method is provided to calculate the upper and lower bounds of spinning reserve which are reachable in average.Furthermore,a new model based on this proposed method for joint scheduling of generation and reserve is presented,which considers the ability to realize the scheduled energy and reserve delivery.It converts the opti-mization based accurate scheduling for generation and reserve of power system from a continuous-time optimal control prob-lem to a nonlinear programming problem.Therefore,the proposed model can avoid the difficulties in solving a continu-ous-time optimal control problem.Based on the sequential quadratic programming method,numerical experiments for sched-uling electric power production systems are performed to evaluate the model and the results show that the new model is highly effective. | GAO YunLong PAN JinYan YANG ZiJiang GAO Feng JI GuoLi | 2012 | Science China(Technological Sciences)2012,55,1: | 6 |
| 2 | A time-series modeling method based on the boosting gradient-descent theory显示文摘The forecasting of time-series data plays an important role in various domains. It is of significance in theory and application to improve prediction accuracy of the time-series data. With the progress in the study of time-series, time-series forecasting model becomes more complicated, and consequently great concern has been drawn to the techniques in designing the forecasting model. A modeling method which is easy to use by engineers and may generate good results is in urgent need. In this paper, a gradient-boost AR ensemble learning algorithm (AREL) is put forward. The effectiveness of AREL is assessed by theoretical analyses, and it is demonstrated that this method can build a strong predictive model by assembling a set of AR models. In order to avoid fitting exactly any single training example, an insensitive loss function is introduced in the AREL algorithm, and accordingly the influence of random noise is reduced. To further enhance the capability of AREL algorithm for non-stationary time-series, improve the robustness of algorithm, discourage overfitting, and reduce sensitivity of algorithm to parameter settings, a weighted kNN prediction method based on AREL algorithm is presented. The results of numerical testing on real data demonstrate that the proposed modeling method and prediction method are effective. | GAO YunLong PAN JinYan JI GuoLi GAO Feng | 2011 | Science China(Technological Sciences)2011,54,5: | 5 |
| 3 | A note on the Levenberg–Marquardt parameter显示文摘 | Jinyan Fan Jianyu Pan | 2008 | Applied Mathematics and Computation2008,,2: | 1 |
| 4 | Inhibition of the nuclear export of p65 and IQCG in leukemogenesis by NUP98-IQCG显示文摘 | Mengmeng Pan Qiyao Zhang Ping Liu Jinyan Huang YueyingWang Saijuan Chen | 2016 | Frontiers of Medicine2016,10,4: | 1 |
| 5 | A note on the Levenberg Marquardt parameter显示文摘 | FAN Jinyan PAN Jianyu | 2009 | Applied Mathematics and Computation2009,207,: | 1 |
| 6 | A novel two-level nearest classification algorithm using an adaptive distance metric显示文摘 | Gao Yunlong Pan Jinyan Ji Guoli | 2012 | Knowledge Based Systems2012,26,: | 1 |
| 7 | Convergence properties of a self-adaptive levenberg-marquardt algorithm under local error bound condition 显示文摘 | Fan Jinyan Pan Jianyu | 2006 | Computational Optimization and Applications2006,34,: | 1 |
| 8 | Accelerating water dissociation kinetics of Ni3N by tuning interfacial orbital coupling显示文摘The high unoccupied d band energy of Ni_(3)N basically results in weak orbital coupling with water molecule,consequently leading to slow water dissociation kinetics.Herein,we demonstrate Cr doping can downshift the unoccupied d orbitals and strengthen the interfacial orbital coupling to boost the water dissociation kinetics.The prepared Cr-Ni_(3)N/Ni displays an impressive overpotential of 37 mV at 10 mA·cmgeo-2,close to the benchmark Pt/C in 1.0 M KOH solution.Refined structural analysis reveals the Cr dopant exists as the Cr-N_(6)states and the average d band energy of Ni_(3)N is also lowered.Density functional theory calculation further confirms the downshifted d band energy can strengthen the orbital coupling between the unpaired electrons in O 2p and the unoccupied state of Ni 3d,which thus facilitates the water adsorption and dissociation.The work provides a new concept to achieve on-demand functions for hydrogen evolution catalysis and beyond,by regulating the interfacial orbital coupling. | Yishang Wu Yufang Xie Shuwen Niu Yipeng Zang Jinyan Cai Zenan Bian Xuanwei Yin Yanyan Fang Da Sun Di Niu Zheng Lu Amirabbas Mosallanezhad Huijuan Wang Dewei Rao Hongge Pan Gongming Wang | 2021 | Nano Research2021,14,10: | 1 |
| 9 | Insights into the architecture of human-induced polygenic selection in Duroc pigs显示文摘Background:As one of the most utilized commercial composite boar lines,Duroc pigs have been introduced to China and undergone strongly human-induced selection over the past decades.However,the efficiencies and limitations of previous breeding of Chinese Duroc pigs are largely understudied.The objective of this study was to uncover directional polygenic selection in the Duroc pig genome,and investigate points overlooked in the past breeding process.Results:Here,we utilized the Generation Proxy Selection Mapping(GPSM)on a dataset of 1067 Duroc pigs with 8,766,074 imputed SNPs.GPSM detected a total of 5649 putative SNPs actively under selection in the Chinese Duroc pig population,and the potential functions of the selection regions were mainly related to production,meat and carcass traits.Meanwhile,we observed that the allele frequency of variants related to teat number(NT)relevant traits was also changed,which might be influenced by genes that had pleiotropic effects.First,we identified the direction of selection on NT traits by G,and further pinpointed large-effect genomic regions associated with NT relevant traits by selection signature and GWAS.Combining results of NT relevant traits-specific selection signatures and GWAS,we found three common genome regions,which were overlapped with QTLs related to production,meat and carcass traits besides“teat number”QTLs.This implied that there were some pleiotropic variants underlying NT and economic traits.We further found that rs346331089 has pleiotropic effects on NT and economic traits,e.g.,litter size at weaning(LSW),litter weight at weaning(LWW),days to 100 kg(D100),backfat thickness at 100 kg(B100),and loin muscle area at 100 kg(L100)traits.Conclusions:The selected loci that we identified across methods displayed the past breeding process of Chinese Duroc pigs,and our findings could be used to inform future breeding decision. | Zitao Chen Jinyan Teng Shuqi Diao Zhiting Xu Shaopan Ye Dingjie Qiu Zhe Zhang Yuchun Pan Jiaqi Li Qin Zhang Zhe Zhang | 2023 | Journal of Animal Science and Biotechnology2023,14,1: | 0 |
| 10 | A RETROSPECTIVE TRUST REGION ALGORITHM WITH TRUST REGION CONVERGING TO ZERO显示文摘我们建议一个回顾的信任区域算法,信任区域为非强迫的优化问题收敛到零。不同于传统的信任区域算法,算法根据回顾的比率更新信任区域半径,它使用最近的模型信息。我们证明算法保存传统的信任区域算法的全球集中。superlinear 集中也在一些合适的条件下面被证明。[从作者抽象] | Jinyan Fan Jianyu Pan Hongyan Song | 2016 | Journal of Computational Mathematics2016,34,4: | 0 |
| 11 | PDA-BPs integrated mussel-inspired multifunctional hydrogel coating on PPENK implants for anti-tumor therapy,antibacterial infection and bone regeneration显示文摘Currently,many cancer patients with bone defects are still threatened by tumor recurrence,postoperative bacterial infection,and massive bone loss.Many methods have been studied to endow bone implants with biocompatibility,but it is difficult to find an implant material that can simultaneously solve the problems of anticancer,antibacterial and bone promotion.Here,a multifunctional gelatin methacrylate/dopamine methacrylate adhesive hydrogel coating containing 2D black phosphorus(BP)nanoparticle protected by polydopamine(pBP)is prepared by photocrosslinking to modify the surface of poly(aryl ether nitrile ketone)containing phthalazinone(PPENK)implant.The multifunctional hydrogel coating works in conjunction with pBP,which can deliver drug through photothermal mediation and kill bacteria through photodynamic therapy at the initial phase followed by promotion of osteointegration.In this design,photothermal effect of pBP control the release of doxorubicin hydrochloride loaded via electrostatic attraction.Meanwhile,pBP can generate reactive oxygen species(ROS)to eliminate bacterial infection under 808 nm laser.In the slow degradation process,pBP not only effectively consumes excess ROS and avoid apoptosis induced by ROS in normal cells,but also degrade into PO43to promote osteogenesis.In summary,nanocomposite hydrogel coatings provide a promising strategy for treatment of cancer patients with bone defects. | Yizheng Li Chengde Liu Xitong Cheng Jinyan Wang Yue Pan Cheng Liu Shouhai Zhang Xigao Jian | 2023 | Bioactive Materials2023,,9: | 0 |
| 12 | Advances in Studies of Genetic Improvement of Sugarcane显示文摘Sugarcane(Saccharum spp.) is a large perennial herbaceous plant that is cultivated in tropical and subtropical regions of the world,and it is also one of the most efficient crops in the world in converting energy from sunlight into chemical energy. As an essential sugar crop and energy crop,sugarcane is receiving an increasing concern for its variety improvement. Traditional breeding and cultivation techniques have contributed a lot to increasing sugarcane yield and sucrose content. In recent years,development and application of biotechnology provide much help for genetic improvement of sugarcane. For convenience of breeders fully knowing advances in studies of sugarcane genetic improvement,this paper elaborated conventional breeding,genomics,GM technology,and molecular marker assisted breeding. | Mingfu WEN Junxian YANG Fangyin PAN Wenlong WU Yuegui CHEN Jinyan GUAN | 2016 | Asian Agricultural Research2016,8,11: | 0 |