|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Optimization of mathematical models for thematic maps显示文摘The thematic map is a major class of maps designed to demonstrate particular features or concepts,functioning as an indispensable tool in geographical research.The process of thematic mapping is one into which geographical research goes deeply and broadly.The key activity and course of thematic map production is the use of mathematical models to create thematic data layers.Therefore,the selection and optimization of mathematical models is in the forefront of thematic map research.The theoretical foundations,mechanisms and methods of mathematical model optimization are expounded in this paper,including two approaches,the phase by phase mode and the multi-aim scheme balance mode.Case studies in eco-environment mapping and emergency mapping are described and analyzed,with a hierarchical analysis method being used in the model optimization for eco-environment fragility and sensitivity assessment mapping in Beibuwan (Guangxi) District,the dynamic system (DS) method being used in the model optimization for ecological security adjustment mapping in Xishuang Banna,Yunnan province,and the multi-phase mode being used in the models for forest fire and infectious diseases mapping. | QI QingWen1,ZHANG An1,JIANG LiLi1,ZOU XiuPing2,XU Li3 & CHENG Xi1,4 1 Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China 2 Institute of Policy and Management,Chinese Academy of Sciences,Beijing 100080,China 3 Taishan University,Taian 271021,China 4 Graduate University of Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China(Technological Sciences)2010，53，S1： | 6 |
| 2 | Preharvest long-term exposure to UV-B radiation promotes fruit ripening and modifies stage-specific anthocyanin metabolism in highbush blueberry显示文摘Ultraviolet-B(UV-B)light(280–315 nm)is an important environmental signal that regulates plant development and photomorphogenesis,while also affecting the flavonoid pathway,including anthocyanin biosynthesis.Regarding the effects of UV-B radiation on fruits,the effects of a short-term or postharvest irradiation on fruit quality have been well-documented,but the effects of a long-term preharvest UV-B irradiation on fruit growth and coloration remain unclear.Thus,in this study,we investigated the effects of a long-term treatment involving an environmentally relevant UV-B dose on highbush blueberry(Vaccinium corymbosum)fruit.The preharvest UV-B treatment quickly promoted fruit growth and sugar accumulation,which is not commonly observed in other fruit tree species.The UV-B exposure also accelerated fruit ripening and coloration.The dual-luciferase assay proved that in blueberries,expression of VcUFGT encoding anthocyanin biosynthesis key enzyme,is positively and negatively regulated by VcMYBA1 and VcMYBC2,respectively.Throughout the fruit development stage,the UV-B treatment up-regulated VcMYBPA1 expression,which increased VcUFGT expression via VcMYBA1.In the green fruit stage,the UV-B treatment increased HY5 encoding UV receptor,which up-regulates VcMYBPA1 and down-regulates VcMYBC2,thereby promotes the accumulation of anthocyanins.On the other hand,excessive anthocyanin synthesis was inhibited by increased VcMYBC2 levels in mature fruits when exposed to UV-B light through HY5-independent pathway.In conclusion,anthocyanin-related MYB activators and repressor may coordinately balance the accumulation of anthocyanins in blueberry fruits,with UV-B treatments possibly influencing their effects in a stage-specific manner.The potential utility of preharvest UV-B treatments for improving blueberry fruit quality is discussed herein. | Taishan Li Hisayo Yamane Ryutaro Tao | 2021 | Horticulture Research2021，8，1： | 6 |
| 3 | Irregular wavelet frames on L^2 (R^n)显示文摘In this paper, we present the conditions on dilation parameter {sj }j that ensure a discrete irregular wavelet system {Snj/2ψ(sj·-bk)}j∈(Z),k∈(Z)n to be a frame on L2(Rn),and for the wavelet frame we consider the perturbations of translation parameter b and frame function ψ respectively. | YANG Deyun & ZHOU Xingwei Department of Information & Technology, Nankai University, Tianjin 300071, China Department of Mathematics, Nankai University, Tianjin 300071, China Department of Computer Science, Taishan College, Taian 271000, China | 2005 | Science China Mathematics2005，48，2： | 4 |
| 4 | Special characteristics of fluorescence and resonance Rayleigh scattering for cadmium telluride nanocrystal aqueous solution and its interactions with aminoglycoside antibiotics显示文摘CdTe nanocrystals(CdTe NCs) were achieved by reaction of CdCl2 with KHTe solution and were capped with sodium mercaptoacetate.The product was detected by transmission electron microscopy(TEM),high-resolution transmission electron microscopy(HRTEM),energy dispersive spectroscopy(EDS),fluorescence spectra,ultraviolet-visible spectra and X-ray diffraction(XRD).The CdTe NCs are of cubic structure and the average size is about 5 nm.The fluorescence quantum yield of CdTe NCs aqueous solution increased from 37% to 97% after 20 d under room light.The maximum λem of fluorescence changed from 543 nm to 510 nm and the blue shift was 33 nm.CdTe NCs aqueous solution can be steady for at least 10 months at 4℃ in a refrigerator.The resonance Rayleigh scattering(RRS) of CdTe NCs in the aqueous solution was investigated.The maximum scattering peak was located at about 554 nm.The interactions of CdTe NCs with amikacin sulfate(AS) and micronomicin sulfate(MS) were investigated respectively.The effects of AS and MS on fluorescence and RRS of CdTe NCs were analyzed.It was found that AS and MS quenched the photoluminescence of CdTe NCs and enhanced RRS of CdTe NCs.Under optimum conditions,there are linear relationships between quenching intensity(F0-F),intensity of RRS(I-I0) and concentration of AS and MS.The detection limits(3б) of AS and MS are respectively 3.4 ng·mL-1 and 2.6 ng·mL-1 by the fluorescence quenching method,and 15.2 ng·mL-1 and 14.0 ng·mL-1 by the RRS method.The methods have high sensitivity,thus CdTe NCs may be used as fluorescence probes and RRS probes for the detection of aminoglycoside antibiotics. | LI TaiShan LIU ShaoPu LIU ZhongFang HU XiaoLi ZHANG LiPing | 2009 | Science China Chemistry2009，52，1： | 2 |
| 5 | Luminescent single-molecule magnet of metallofullerene DyErScN@Ih-C80显示文摘Magneto-luminescent molecules have significant applications in data storage and quantum computing.However,design of these bi-functional molecules coupled with magnetic behavior and photoluminescence is still challenging.In this work,we report a metallofullerene DyErScN @In-C80 exhibiting single-molecule magnet (SMM) behavior and near-infrared emission.For DyErScN @Ih-C80,two functional lanthanide metal ions of Dy^3+(SMM function) and Er^3+(luminescent function) are integrated inside a fullerene cage using a trimetallic nitride template,and its structure has been unambiguously characterized by single-crystal X-ray diffraction.Magnetic measurements revealed that DyErScN @Ih-C80 behaves as a SMM with a blocking temperature up to 9 K resulting from the intramolecular magnetic interaction between Dy^3+ and Er^3+ ions.Moreover,DyErScN @In-C80 exhibits temperature-dependent near-infrared emission around 1.5 pm with multiple splitting peaks from Er^3+,which arises from the influence of Dy^3+ ion.This study provides a new strategy to synthesize new magneto-luminescent molecule materials. | Mingzhe Nie Jin Xiong Chong Zhao Haibing Meng Kun Zhang Yibo Han Jie Li Bingwu Wang Lai Feng Chunru Wang Taishan Wang | 2019 | Nano Research2019，12，7： | 2 |
| 6 | A fast and elitist muhiobjective genetic algorithm: NSGA-II显示文摘 | Yan Taishan | 2002 | IEEE Transaction on Evolutionary Com- putation2002，6，2： | 1 |
| 7 | Relationship between the rennin-angiotensin system genes and diabetic nephropathy in the Chinese显示文摘 | Wu Songhua Xiang Kunsan Zheng Taishan | 2000 | Chinese Medical Journal2000，113，5： | 1 |
| 8 | Research of a universal fuzzy controller based on chaos optimization显示文摘 | Taishan Zhang | 2004 | IEEE Intelligent Control and Automation (S 1074-7443)2004，32，5： | 1 |
| 9 | Pro12ala polymorphism in thepparggene contributes to the development of diabetic nephropathy in chinese type 2 diabetic patients显示文摘 | Limei liu Taishan zheng Feng wang Niansong wa | | 0，，01： | 1 |
| 10 | Covalently bonded two spin centers of paramagnetic metallofullerene dimer显示文摘Paramagnetic endohedral metallofullerenes with well protected unpaired spin have potential applications in molecular-scale qubit processing and magnetoreception system. In this study, a paramagnetic metallofullerene Sc_(3)C_(2)@C_(80) dimer with covalently bonded two spin centers was synthesized. Electron paramagnetic resonance (EPR) results further revealed the varied spin-nuclei couplings and paramagnetic property for Sc_(3)C_(2)@C_(80) dimer. Briefly, the Sc_(3)C_(2)@C_(80) dimer in toluene solution shows EPR hyperfine splittings originating from the spin-Sc couplings. However, the Sc_(3)C_(2)@C_(80) dimer in solid state shows the disappearance of hyperfine structure and a single EPR signal caused by its two-spin-center structure. The transformation of EPR signals can be further finely modulated by controlling the dynamic motion of Sc_(3)C_(2)@C80 dimer in chloronaphthalene. The Sc_(3)C_(2)@C_(80) dimer with two spin centers possesses varied paramagnetic properties, demonstrating its potential as new magnetic material. | Haibing Meng Yongqiang Chai Chong Zhao Mingzhe Nie Chunru Wang Taishan Wang | 2021 | Nano Research2021，14，12： | 1 |
| 11 | Co-inheritance of specific genotypes of HSPG and ApoE gene increases risk of type 2 diabetic nephropathy显示文摘 | Limei Liu Kunsan Xiang Taishan Zheng Rong Zhang Ming Li Jie Li | 2003 | Molecular and Cellular Biochemistry (-)2003，，1： | 1 |
| 12 | Research of a universal fuzzy controller based on chaos optimization 显示文摘 | Yuan Yah Taishan Zhang | 2004 | IEEE Intelligent Control and Automation (S 1074-7443)2004，32，5： | 1 |
| 13 | Zirconium nitride as a highly efficient nitrogen source to synthesize the metal nitride clusterfullerenes显示文摘Metal nitride clusterfullerenes(NCFs)have significant applications in molecular electronics,biomedical imaging,and nonlinear optical devices due to their unique structures.However,their wide applications are limited by the production quantity.In this work,the yields of metal nitride clusterfullerenes M3N@C80(M=Y,Sc,Gd)were greatly enhanced by utilizing zirconium nitride(Zr N)as an efficient nitrogen source for the arc-discharge method.Compared with the traditional synthetic route using N2gas as nitrogen source,the Zr N inside graphite tube can be vaporized simultaneously with metal and graphite,and then afford the high concentration of nitrogen atoms in the arc region,which will promote the formation of metal nitride clusterfullerenes finally.The Zr N can promote the yields of Y3N@C80,Sc3N@C80and Gd3N@C80,revealing the universal applicability of Zr N as a highly efficient nitrogen source.Specifically,the yield of Sc3N@C80was greatly improved when adding Zr N,and it shows over double yield compared to traditional synthetic route using N2gas.In addition,Zr N can also enhance the yields of paramagnetic azametallofullerene M2@C79N due to the high concentration of nitrogen atoms in the arc region.This new method enhances the production quantity of metal nitride clusterfullerenes and azametallofullerenes,and it will greatly promote the research and application of these molecular carbon materials. | Yuxi Lu Jie Zhang Chong Zhao Mingzhe Nie Chunru Wang Taishan Wang | 2021 | Science China Chemistry2021，64，1： | 1 |
| 14 | The clinical research of esophagus radiographic locating method of atrial septal puncture-including the clinical analyses of 486 cases显示文摘Objective To devise the safety and validity of clinical application of esophagus radiographic locating method of transseptal puncture. Methods Four hundreds and eighty-six patients who were undergone transseptal puncture were randomized into two groups. Esophagus radiographic locating method of tansseptal puncture was applied in the study group(n=243) and modified-Ross locating method was used in the control group(n=243). After successful location, transseptal puncture was made. Then observe the success rate and complication incidences of the 2 groups. Results Left atria impression in the study group was clearly seen. 120 cases in control group could not shown clearly the left atria silhouette. The success rate of locating transseptal puncture in the study group and control group were 100% and 50.6 % respectively(P<0.001). The success rate of transeptal puncture in the study group and control group was 99.6% and 45.7% respectively (P<0.001). There were no puncture complication in study group and pericardial tamponade occurred in 1 case in control group. Conclusion The esophagus radiographic locating method of transeptal puncture is accurate, safe and simple to perform. According to the radiographic result, to perform thetranseptal puncture can achieve high success rate with few complications. | Department of Cardiology, Guangzhou Red Cross Hospital, The Fourth Affiliated Hospital of Jinan University, Guangzhou 510220, China (WU Tong-guo, CHEN Si-wei, LW Zi-qing, HUANG Li-ping) School of Biomedical Sciences, Carles Start University, Wagga Wagga, Australia (WANG Le-xing) Department of Cardiology, The Affiliated Hospital of Taishan Medical College, Tai’ an 271000, China(YANG Cheng-jun) | 2007 | 上海医学2007，30，S1： | 1 |
| 15 | Power spectra of active galactic nuclei显示文摘The power spectral densities(PSDs)for a sample of active galactic nuclei(AGNs)are analyzed in both the frequency domain and the time domain.We find for each object that for broadband noise a character timescale-bifurcation timescale of Fourier and time-domain PSD exists in the 10 3 -10 6 s range, below which the time-domain power spectrum is systematically higher than the corresponding Fourier spectrum.The relationship between bifurcation timescale,AGN mass and luminosity is studied.Compared with the fact that similar phenomena have been found for Galactic black hole candidates(GBHs) with bifurcation timescale^0.1 s but not for accreting neutron stars,our finding indicates that AGNs and GBHs have common intrinsic nature in rapid X-ray variability with a character time parameter scaled with their masses. | WANG TaiShan WU YuXiang LIU Yuan | 2009 | Science China(Physics,Mechanics & Astronomy)2009，52，5： | 1 |
| 16 | Design and analysis of an untethered micro flapping robot which can glide on the water显示文摘Flapping-wing flying insects possess various advantages,such as high agility and efficiency.The design and manufacture of insect-scale flapping-wing micro aerial vehicle(FWMAV)have attracted increasing attention in recent decades.Due to the limitations of size and weight,the FWMAV with an onboard battery which can fully mimic insect flight has not been achieved.In this work,we design and fabricate a highly integrated flapping-wing microrobot named Robomoth.The Robomoth consists of a carbon chassis,customized power and control devices,and two piezoelectric ceramic actuators symmetrically distributed in the thorax and controlled individually.It weighs 2.487 g,spans 5.9 cm in length,possesses 9 cm of wingspan,and carries a 0.355 g rechargeable lithium battery.We demonstrate the mobility of the Robomoth through untethered gliding and making turns on the water surface.A simplified dynamic model of the flapping system is proposed to explain the relationship between the driving frequency and the flapping amplitude.The Robomoth is one new untethered bioinspired flapping-wing robot that can perform stable water surface motion,which holds potential applications such as search and rescue on the water.The robot can also provide insight for designing insect-scale flying vehicles. | CHEN YanHong LIU YiDe LIU TaiShan LI Hua QU ShaoXing YANG Wei | 2022 | Science China(Technological Sciences)2022，65，8： | 0 |
| 17 | UV light-driven asymmetric vinylogous aldol reaction of isatins with 2-alkylbenzophenones and enantioselective synthesis of 3-hydroxyoxindoles显示文摘Chiral 3-hydroxyoxindoles are biologically important molecular motifs which are frequently present in natural products and artificial compounds.Herein,we report an ultraviolet light-driven asymmetric vinylogous aldol reaction between versatile isatins and 2-alkylbenzophenones.Under mild conditions. | Shixuan Cao Jiatian Li Taishan Yan Jie Han Zhengjie He | 2022 | Organic Chemistry Frontiers2022，9，3： | 0 |
| 18 | Development and Research of Non⁃Stirring Conveying Device for Waste Resin in Nuclear Power Plant显示文摘Blockage in the storage and transportation of waste resin is a difficult problem in the radioactive waste treatment process of nuclear power plants.In this study,in order to solve the problems of unstable resin transport concentration and easy blockage of conveying equipment and pipelines in nuclear power plants in China,a set of non⁃stirring conveying devices is developed,and theoretical calculations,simulation analysis and experimental verification are carried out.By transporting resin using the no stirring conveying device developed in this paper,it is not only to eliminate the risk of blockage and ensure the safety of transportation,but also to adjust the concentration of conveying resin to change the transport efficiency according to the operating conditions.The effective bearing rate of waste resin storage tank can be improved,so that the comprehensive performance of waste resin storage and transportation in nuclear power plants can be greatly improved. | Jianfa Li Yongzhen Hua Mingmei Liu Rui Zhang Taishan Lou | 2023 | Journal of Harbin Institute of Technology(New Series)2023，30，3： | 0 |
| 19 | Kelp Fucoidans Facilitate Vascular Recanalization via Inhibiting Excessive Activation of Platelet in Deep Venous Thrombosis Model of Mouse显示文摘This study was carried out explore the mechanism underlying the inhibition of platelet activation by kelp fucoidans in deep venous thrombosis(DVT)mouse.In the control and sham mice,the walls of deep vein were regular and smooth with intact intima,myometrium and adventitia.The blood vessel was wrapped with the tissue and there was no thrombosis in the lumen.In the DVT model,the wall was uneven with thicken intima,myometrium and adventitia.After treated with fucoidans LF1 and LF2,the thrombus was dissolved and the blood vessel was recanalized.Compared with the control group,the ROS content,ET-1 and VWF content and the expression of PKC-βand NF-κB in the model were significantly higher(P<0.05);these levels were significantly reduced following treatments with LF2 and LF1.Compared with H_(2)O_(2)treated-HUVECs,combined LF1 and LF2 treatment resulted in significant decrease in the expression of PKC-β,NF-κB,VWF and TM protein(P<0.05).It is clear that LF1 and LF2 reduces DVT-induced ET-1,VWF and TM expressions and production of ROS,thus inhibiting the activation of PKC-β/NF-κB signal pathway and the activation of coagulation system and ultimately reducing the formation of venous thrombus. | SUN Taohua LIU Jie YAN Taishan CHEN Anjin ZHANG Fang | 2024 | Journal of Ocean University of China2024，23，2： | 0 |
| 20 | Accelerating the thermal fading rate of photochromic naphthopyrans by pillar[5]arene-based conjugated macrocycle polymer显示文摘A new micro-spherical conjugated macrocycle polymer(P[5]-TFB-CMP)was prepared by the condensation reaction between dihydrazide functionalized pillar[5]arene and 1,3,5-triformylbenzene under ambient conditions.P[5]-TFB-CMP exhibits large surface area with excellent thermal stability and has been used as additive to prepare composite PMMA film of photochromic naphthopyrans.The results showed that the addition of P[5]-TFB-CMP could dramatically accelerate the thermal fading rate of the photochromic composite film by up to 12 times.This is a new strategy to overcome the drawback of the matrix effect. | Shuangyan Liu Taishan Yan Qiuxia Wu Zheng Xu Jie Han | 2022 | Chinese Chemical Letters2022，33，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员