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14篇 您的检索式:作者名="ZHAO Daping"
    题名 作者 年代 出处 被引量
1Growth and nutrient dynamics of Betula alnoides seedlings under exponential fertilization显示文摘Betula alnoides is a fast-growing hardwood species grown in large plantations in Southeast Asia and South China.Nitrogen requirements for producing robus seedlings,growth and nutrient dynamics were investigated using exponential fertilization treatments.Root collar diameter,height,dry mass and nutrient contents of seedlings increased exponentially in all fertilization treatments as time progressed.Moreover,with water soluble fertilizer(Plant Products plus microelements N–P_2O_5–K_2O:20–20–20),300 mg N seedling^(-1)was adequate.Vector analysis revealed that P was the most responsive nutrient element followed by N and K.Dilutions of N and K were evident in the plants without N addition,which induced initial P sufficiency and then luxury consumption probably due to the antagonistic interaction between N and P.However deficiencies of N,P and K were mostly observed in al exponential regimes during the experiment because seedling growth rate exceeded nutrient uptake rate,inferring that further study on improving the nutrient uptake efficiency is needed.Analysis of relationships among nutrient supply,dry mass,N content and N concentration demonstrated that 100–400 mg N seedling^(-1)induced sufficiency to luxury consumption of nitrogen without significant change in dry mass,and 400 mg N seedling^(-1)is recommended to apply for nutrient loading of seedlings before outplanting.The findings will help improve seedling quality and enhance the production of robust seedlings for plantation forestry of this species.Lin Chen Chunsheng Wang Bernard Dell Zhigang Zhao Junjie Guo Daping Xu Jie Zeng 2018Journal of Forestry Research2018,29,1:14
2A Novel System for Moving Object Detection Using Bionic Compound Eyes显示文摘Huabo Sun Haimeng Zhao Peter Mooney Hongying Zhao Daping Liu Lei Yan 2011Journal of Bionic Engineering2011,8,3:6
3Fuzzy Views on Black-Litterman Portfolio Selection Model显示文摘FANG Yong BO Lin ZHAO Daping WANG Shouyang 2018Journal of Systems Science & Complexity2018,31,4:2
4Litter decomposition and the degradation of recalcitrant components in Pinus massoniana plantations with various canopy densities显示文摘To understand the decomposition characteristics of Pinus massoniana foliar litter and the degradation of its refractory compounds in plantations under five canopy densities,a litter bag experiment over a decomposition time of 392 days was carried out.The results show that canopy density significantly affected decomposition rates of litter and degradation rate of lignin and cellulose.Litter decomposition rates decreased significantly with decreasing canopy density.Both lignin and cellulose degradation rates were lower with canopy densities of 0.62 and 0.74 as compared with the three other densities.Lignin and cellulose losses were more rapid in the first 118 days.Soil fauna had significant impacts on litter decomposition and the degradation of refractory compounds.Canopy density had significant effects on factors such as soil properties and soil fauna community structure,which could be conducive to the decomposition of litter and the degradation of litter recalcitrant components.Canopy density between 0.6 and 0.7 might be a favorable management practice promoting litter decomposition and beneficial for the sustainable development of P.massoniana plantations.Jie Zhang Danju Zhang Zhang Jian Hongyang Zhou Yanbo Zhao Daping Wei 2019Journal of Forestry Research2019,30,4:2
5Combined vascularized iliac and greater trochanter graftings for reconstruction of the osteonecrosis femoral head with collapse : Reports of three cases with 20 years follow - up 显示文摘Dwei Zhao Daping Cui 2012Microsurgery2012,32,:1
6Changes of climate and seasonally frozen ground over the past 30 years in Qinghai-Xizang(Tibetan)Plateau,China显示文摘Zhao lin Ping Chienlu Yang Daping 2004Global and Planetary Change2004,43,:1
7Treatment of early stage osteonecrosis of the femoral head with autologous implantation of bone marrow-derived and cultured mesenchymal stem cells显示文摘Dewei Zhao Daping Cui Benjie Wang Fengde Tian Lin Guo Lei Yang Baoyi Liu Xiaobing Yu 2011Bone2011,,1:1
8Dual-crosslinked regenerative hydrogel for sutureless long-term repair of corneal defect显示文摘Corneal transplantation is the most effective clinical treatment for corneal defects,but it requires precise size of donor corneas,surgical sutures,and overcoming other technical challenges.Postoperative patients may suffer graft rejection and complications caused by sutures.Ophthalmic glues that can long-term integrate with the corneal tissue and effectively repair the focal corneal damage are highly desirable.Herein,a hybrid hydrogel consisting of porcine decellularized corneal stroma matrix(pDCSM)and methacrylated hyaluronic acid(HAMA)was developed through a non-competitive dual-crosslinking process.It can be directly filled into corneal defects with various shapes.More importantly,through formation of interpenetrating network and stable amide bonds between the hydrogel and adjacent tissue,the hydrogel manifested excellent adhesion properties to achieve suture-free repair.Meanwhile,the hybrid hydrogel not only preserved bioactive components from pDCSM,but also exhibited cornea-matching transparency,low swelling ratio,slow degradation,and enhanced mechanical properties,which was capable of withstanding superhigh intraocular pressure.The combinatorial hydrogel greatly improved the poor cell adhesion performance of HAMA,supported the viability,proliferation of corneal cells,and preservation of keratocyte phenotype.In a rabbit corneal stromal defect model,the experimental eyes treated with the hybrid hydrogel remained transparent and adhered intimately to the stroma bed with long-term retention,accelerated corneal re-epithelialization and wound healing.Giving the advantages of high bioactivity,low-cost,and good practicality,the dual-crosslinked hybrid hydrogel served effectively for long-term suture-free treatment and tissue regeneration after corneal defect.Xuanren Shen Saiqun Li Xuan Zhao Jiandong Han Jiaxin Chen Zilong Rao Kexin Zhang Daping Quan Jin Yuan Ying Bai 2023Bioactive Materials2023,,2:1
9Well-structured 3D channels within GO-based membranes enable ultrafast wastewater treatment显示文摘Graphene oxide(GO)-based membranes have been widely studied for realizing efficient wastewater treatment,due to their easily functionalizeable surfaces and tunable interlayer structures.However,the irregular structure of water channels within GO-based membrane has largely confined water permeance and prevented the simultaneously improvement of purification performance.Herein,we purposely construct the well-structured three-dimensional(3D)water channels featuring regular and negatively-charged properties in the GO/SiO_(2)composite membrane via in situ close-packing assembly of SiO_(2)nanoparticles onto GO nanosheets.Such regular 3D channels can improve the water permeance to a record-high value of 33,431.5±559.9 L·m^(−2)·h−1(LMH)bar−1,which is several-fold higher than those of current state-of-the-art GO-based membranes.We further demonstrate that benefiting from negative charges on both GO and SiO2,these negatively-charged 3D channels enable the charge selectivity well toward dye in wastewater where the rejection for positive-charged and negative-charged dye molecules is 99.6%vs.7.2%,respectively.The 3D channels can also accelerate oil/water(O/W)separation process,in which the O/W permeance and oil rejection can reach 19,589.2±1,189.7 LMH bar−1 and 98.2%,respectively.The present work unveils the positive role of well-structured 3D channels on synchronizing the remarkable improvement of both water permeance and purification performance for highly efficient wastewater treatment.Huaqiang Fu Zhe Wang Peng Li Wei Qian Zixin Zhang Xin Zhao Hao Feng Zhugen Yang Zongkui Kou Daping He 2023Nano Research2023,16,2:0
10Size effect enabling additive-free MXene ink with ultrahigh conductivity for screen printing of wireless electronics显示文摘Facile preparation of additive-free inks with both high viscosity and high conductivity is critical for scalable screen printing of wireless electronics,yet very challenging.MXene materials exhibit excellent conductivity and hydrophilicity,showing great potential in the field of additive-free inks for screen printing.Here,we demonstrate the synthesis of additive-free two-dimensional(2D)titanium carbide MXene inks,and realize screen-printed MXene wireless electronics for the first time.The viscosity of MXene ink is solely regulated by tuning the size of MXene nanosheet without any additives,hence rendering the printed MXene film extremely high conductivity of 1.67×10^(5) S/m and fine printing resolution down to 0.05 mm on various flexible substrates.Moreover,radio frequency identification(RFID)tags fabricated using the additive-free MXene ink via screen printing exhibit stable antenna reading performance and superb flexibility.This article,thus offers a new route for the efficient,low-cost and pollution-free manufacture of printable electronics based on additive-free MXene inks.Shuaishuai Chen Huaqiang Fu Yunfa Si Xueyu Liu Zhe Wang Yixue Duan Zixin Zhang Hao Feng Xin Zhao Daping He 2023Nano Research2023,16,8:0
11Tunable compact asynchronous optical sampling system using Er-doped fiber laser显示文摘We report a compact,tunable,self-starting,all-fiber laser-based asynchronous optical sampling(ASOPS)system.Two Er-doped fiber oscillators were used as the pulsed-laser source,whose repetition rate could be set at 100 MHz with a tuning range of 1.25 MHz through a fiber delay line.By employing phase-locked and temperature control loops,the repetition rate offset of the two lasers was stabilized with 7.13×10^(−11)fractional instability at an average time of 1 s.Its capabilities in the terahertz regime were demonstrated by terahertz time-domain spectroscopy,achieving a spectral bandwidth of 3 THz with a dynamic range of 30 dB.The large range of repetition rate adjustment in our ASOPS system has the potential to be a powerful tool in the terahertz regime.Zilin Zhao Daping Luo Yang Liu Zejiang Deng Lian Zhou Gehui Xie Chenglin Gu Yanzhao Yang BinWu Wenxue Li 2023High Power Laser Science and Engineering2023,11,2:0
12Spin-Modulated Oxygen Electrocatalysis显示文摘The electrocatalysis reactions involving oxygen,such as oxygen evolution reaction(OER)and oxygen reduction reaction(ORR),play a critical role in energy storage/conversion applications,e.g.,fuel cells,metal-air batteries,and electrochemical water splitting.The high kinetic energy barrier of the OER/ORR is highly associated with the spin state interconversion between singlet OH^(−)/H_(2)O and triplet O_(2),which is influenced by the spin state and magnetism of catalysts.This Review summarizes recent progress and advances in understanding spin/magnetism-related effects in oxygen electrocatalysis to develop spin theory.It is demonstrated that the spin states(low,intermediate,and high spin)of magnetic transition metal catalysts(TMCs)can directly affect the reaction barriers of OER/ORR by tailoring the bonding of oxygen intermediates with TMCs.Besides,the spin states of TMCs can build a spin-selective channel to filter the electron spins required for the single/triplet interconversion of O species during OER/ORR.In this Review,we introduced many approaches to modulating spin state,for instance,altering the crystal field,oxidation state of active-site ions,and the morphology of TMCs.What’s more,a magnetic field can drive the spin flip of magnetic ions to achieve the spin alignment(↑↑)(i.e.,facilitating spin polarization),which will strengthen the spin selectivity for accelerating the filtration and transfer of the spins with the same direction for the generation and conversion of triplet ↑O=O↑.Importantly,the origin of magnetic field enhancement on OER/ORR are deeply discussed,which provides a great vision for the magnetism-assisted catalysis.Finally,the challenges and perspectives for future development of spin/magnetism catalysis are presented.This Review is expected to highlight the significance of spin/magnetism theory in breaking the bottleneck of electrocatalysis field and promote the development of high-efficientcy electrocatalysts for practical applications.Zhi Fang Wanting Zhao Tong Shen Daping Qiu Yucheng Lv Xinmei Hou Yanglong Hou 2023Precision Chemistry2023,1,7:0
13Scalable fabrication of graphene-assembled multifunctional electrode with efficient electrochemical detection of dopamine and glucose显示文摘Conventional glassy carbon electrodes(GCE)cannot meet the requirements of future electrodes for wider use due to low conductivity,high cost,non-portability,lack of flexibility.Therefore,cost-effective and wearable electrode enabling rapid and versatile molecule detection is becoming important,especially with the ever-increasing demand for health monitoring and point-ofcare diagnosis.Graphene is considered as an ideal electrode due to its excellent physicochemical properties.Here,we prepare graphene film with ultra-high conductivity and customize the 3-electrode system via a facile and highly controllable laser engraving approach.Benefiting from the ultra-high conductivity(5.65×10^(5)S·m^(−1)),the 3-electrode system can be used as multifunctional electrode for direct detection of dopamine(DA)and enzyme-based detection of glucose without further metal deposition.The dynamic ranges from 1–200μM to 0.5–8.0 mM were observed for DA and glucose,respectively,with a limit of detection(LOD)of 0.6μM and 0.41 mM.Overall,the excellent target detection capability caused by the ultra-high conductivity and ease modification of graphene films,together with their superb mechanical properties and ease of mass-produced,provides clear potential not only for replacing GCE for various electrochemical studies but also for the development of portable and highperformance electrochemical wearable medical devices.Xiaodong Ji Xin Zhao Zixin Zhang Yunfa Si Wei Qian Huaqiang Fu Zibo Chen Zhe Wang Huihui Jin Zhugen Yang Daping He 2023Nano Research2023,16,5:0
14MICROSTRUCTURE-PROPERTY RELATIONSHIP OF Al-2.2Li-2.5Cu-0.2Mg ALLOY显示文摘The relationship among the microstructures,properties and the phase transformation inAl-2.2Li-2.5Cu-0.2Mg alloy after various treatments have been studied by opticalmicroscopy and TEM observations.It is verified that solution treated at 525℃ for 1h is saris-factory for this alloy in which all the alloying elements are dissolved in the α-Al matrix,andaging at 190℃ for 16 h is the peak-aged condition.The alloy subjected to treatment isstrengthened only be T1 phase.In overaged or underaged conditions,the alloy is strengthenedby two phases,in this cases,the strengthening effect is smaller than that by one phase.Thedeformation prior to aging would develop the plasticity and do not decrease the strength of theexperimental alloy.ZHANG Yun ZHAO Hong’en YAO Daping GAO Guozhong CHEN Jizhi HU Zhuangqi Institute of Metal Research,Academia Sinica,Shenyang,China 1989Acta Metallurgica Sinica(English Letters)1989,2,6:0
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