You Qiang - Profile on Academia.edu (original) (raw)
Papers by You Qiang
An Analysis of Integrated Evaluation Factors for the Application of Satellite Remote Sensing Data in Land and Resources
Remote Sensing for Land & Resources, May 20, 2009
... ZHOU Qiang1,YOU Shu-cheng2,YU Hai-yang3,ZHANG Chun-ling4(1. China Aero Geophysical Survey &am... more ... ZHOU Qiang1,YOU Shu-cheng2,YU Hai-yang3,ZHANG Chun-ling4(1. China Aero Geophysical Survey & Remote Sensing Center for Land and Resources,Beijing 100083,China; 2. China LandSurveying & Planning Institute,Beijing 100035,China; 3. School of Surveying and ...
Physical Review B, Mar 20, 2009
We studied the electrical transport properties of single-crystal epitaxial Co-doped ZnO films gro... more We studied the electrical transport properties of single-crystal epitaxial Co-doped ZnO films grown by molecular-beam epitaxy. Upon increasing temperature, transport mechanisms changed from hard-gap resistance to Efros variable range hopping. The magnetic field and the temperature dependence of magnetoresistance revealed that large positive magnetoresistance observed in the hard-gap regime originated from the shrinkage of electron wave functions. However, no sign of spin-dependent transport behavior was found.
Growth of Uniform Nickel Wire Arrays
APS, May 1, 2004
ABSTRACT
The magnetic properties of Co N clusters (Nϭ1, 13, 19, and 43͒ embedded in copper matrix are stud... more The magnetic properties of Co N clusters (Nϭ1, 13, 19, and 43͒ embedded in copper matrix are studied using the discrete-variational local-spin-density-functional method and embedded cluster models. Single Co atom in Cu is found to be nonmagnetic, while all the rest Co clusters in Cu are still magnetic with reduced moments. Cu atoms in granular Co/Cu system reveal similar spin polarizations to Cu atoms in Co/Cu multilayers as manifested in recent x-ray magnetic circular dichroism measurements. ͓S0163-1829͑97͒03406-1͔ As is well known, the band theories rely on translational symmetry and are difficult to be used to treat a small particle
New Nuclear Radiation Detector Made by Core-Shell Magnetic Nanoparticles
The Reasons and Error Analysis for Two Ways to Seek Why Pure Bending Deformation of Straight Beam is Parabolic Curve
The accuracy key to the deflection curve of a uniform section straight beam subjected to the mome... more The accuracy key to the deflection curve of a uniform section straight beam subjected to the moment is a circle,however,the answers are both parabolas by metheds of graph multiplication and double integral.The paper analyzed the reasons and the error given with a parabola replacing a circle and pointed out that the error using parabolic arc line is very small,enough to meet the engineering design accuracy.
Journal of Magnetism and Magnetic Materials, 2019
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Growth of Uniform Nickel Wire Arrays
MRS Proceedings, 2005
Nickel nanowire arrays with high aspect ratio and large packing densities have been grown in thin... more Nickel nanowire arrays with high aspect ratio and large packing densities have been grown in thin nanochannel glass templates by an electrochemical deposition method. The templates were polished and etched for enough time to obtain parallel, uniform, hollow channels. One of surfaces of templates was then deposited with copper to provide an electrode. The pH value of NiSO4 aqueous solution was 1 to 2 and the deposition potential was chosen to be –1.2 V versus the saturated Calomel electrode. Obtained nickel wires were circular, each approximately 80 – 160 nm in diameter and 150 μm long, depending on the diameter of nanochannel. Finally, scanning electron microscopy has been used to characterize the nanostructures. Magnetic properties of the nickel wire arrays have been also investigated by using a superconducting quantum interference device magnetometer (SQUID).
A comparison of the morphological and electrical properties of sol-gel dip coating and atomic layer deposition of ZnO on 3D nanospring mats
Materials Research Express, 2018
We report on the morphological and electrical properties, with (light) and without (dark) UV illu... more We report on the morphological and electrical properties, with (light) and without (dark) UV illumination, of conformal coatings of ZnO on silica nanosprings deposited by sol-gel and atomic layer deposition (ALD) for the first time. Field Emission Scanning Electron Microscopy (FESEM) imaging showed that both methods produce conformal coatings of ZnO on the nanosprings. The surface of the sol-gel coatings exhibited cracks at higher numbers of dipping/sintering cycles, while the morphology of ALD ZnO films were always smooth and devoid of cracks. The effective photoconductivity of the sol-gel ZnO coated nanospring mats increased nonlinearly with increasing coating thickness. The corresponding dark effective conductivity of the sol-gel ZnO coated nanospring mats also increased within the same thickness range. Alternatively, the effective photoconductivity of the ALD ZnO coated nanospring mats increased linearly with increasing coating thickness. The corresponding dark effective conductivity also increased within the same thickness range. The superior effective conductivity and photoconductivity of the ALD ZnO coated nanospring mats is attributed to the uniformity of the coating and the absence of cracks, which are observed for the thicker sol-gel ZnO coatings.
Development of High Resistive and High Magnetization Soft Thin Film and Fabrication of Thin Film Inductors
ABSTRACT The goals of the program was to develop soft magnetic films, fabricate test structures, ... more ABSTRACT The goals of the program was to develop soft magnetic films, fabricate test structures, to device a microwave inductor and integrate thin film inductor onto CMOS (complimentary metal oxide semiconductor). Six researchers from four different academic departments including materials science, physics, chemical engineering and electrical engineering have conducted their own research projects. This report contains six sub-reports for detailed information on the results.
Efficient method to attach enzymes to monodispersive iron nanoparticles
INTERMAG 2006 - IEEE International Magnetics Conference, 2006
One of the major concerns in environmental, biomedical and other applications of enzyme is their ... more One of the major concerns in environmental, biomedical and other applications of enzyme is their short life time restricting its use outside the cell. An effective way to increase the stability and longevity of enzymes from hours to days is to combine them with nanoparticles. With this aim, two different catabolic enzymes-trypsin and peroxidase were attached to the uniform magnetic
Details of selected paper
Design and Implementation of Readable/Writable Electronic Diskette in PC-Series Computers
Cluster Assembled Magnetic and Hard Films Produced by Energetic Cluster Impact (ECI)
ABSTRACT
Anti-oxidation and Scavenging Effects of a Traditional Medicine Prescription" San Sheng Yang Yin Yin
Objective\ Effects of a traditional Chinese medicine prescription \!San Sheng Yang Yin Yin"o... more Objective\ Effects of a traditional Chinese medicine prescription \!San Sheng Yang Yin Yin"on changes of LPO contents in mouse tissues induced by γ\|radiation exposure are observed.Methods\ LPO contents were determined by the modified spectrophotometry of TBA.Scavenging effects on hydroxyl free radicals produced in vitro by Ferton reaction were studied by ESR method.Results\ Results showed that the prescription is effective in reducing LPO contents in the tissues,and has good scavenging effects on hydroxyl free radicals.Moreover,the prescription could increase the survival rates of irradiated mice and prolong the survival duration.Conclusions\ \!San Sheng Yang Yin Yin"would have a good application prospect in the treatment of radiation injury and as a supplement in radiation therapy.
Magnetic properties of nanoclusters embedded in a matrix
ABSTRACT
Investigations of factors influencing the properties of metallic iron nanoparticles
A Novel Nanotechnology for Nuclear Fuel Recycling——Ultrahigh Selective Actinide Separation of Conjugates of Magnetic Nanoparticle-Chelator
Ferromagnetism in doped or undoped spintronics nanomaterials
ABSTRACT
Hard and wear resistant coatings for the moulding and embossing of glasses at elevated temperatures
An Analysis of Integrated Evaluation Factors for the Application of Satellite Remote Sensing Data in Land and Resources
Remote Sensing for Land & Resources, May 20, 2009
... ZHOU Qiang1,YOU Shu-cheng2,YU Hai-yang3,ZHANG Chun-ling4(1. China Aero Geophysical Survey &am... more ... ZHOU Qiang1,YOU Shu-cheng2,YU Hai-yang3,ZHANG Chun-ling4(1. China Aero Geophysical Survey & Remote Sensing Center for Land and Resources,Beijing 100083,China; 2. China LandSurveying & Planning Institute,Beijing 100035,China; 3. School of Surveying and ...
Physical Review B, Mar 20, 2009
We studied the electrical transport properties of single-crystal epitaxial Co-doped ZnO films gro... more We studied the electrical transport properties of single-crystal epitaxial Co-doped ZnO films grown by molecular-beam epitaxy. Upon increasing temperature, transport mechanisms changed from hard-gap resistance to Efros variable range hopping. The magnetic field and the temperature dependence of magnetoresistance revealed that large positive magnetoresistance observed in the hard-gap regime originated from the shrinkage of electron wave functions. However, no sign of spin-dependent transport behavior was found.
Growth of Uniform Nickel Wire Arrays
APS, May 1, 2004
ABSTRACT
The magnetic properties of Co N clusters (Nϭ1, 13, 19, and 43͒ embedded in copper matrix are stud... more The magnetic properties of Co N clusters (Nϭ1, 13, 19, and 43͒ embedded in copper matrix are studied using the discrete-variational local-spin-density-functional method and embedded cluster models. Single Co atom in Cu is found to be nonmagnetic, while all the rest Co clusters in Cu are still magnetic with reduced moments. Cu atoms in granular Co/Cu system reveal similar spin polarizations to Cu atoms in Co/Cu multilayers as manifested in recent x-ray magnetic circular dichroism measurements. ͓S0163-1829͑97͒03406-1͔ As is well known, the band theories rely on translational symmetry and are difficult to be used to treat a small particle
New Nuclear Radiation Detector Made by Core-Shell Magnetic Nanoparticles
The Reasons and Error Analysis for Two Ways to Seek Why Pure Bending Deformation of Straight Beam is Parabolic Curve
The accuracy key to the deflection curve of a uniform section straight beam subjected to the mome... more The accuracy key to the deflection curve of a uniform section straight beam subjected to the moment is a circle,however,the answers are both parabolas by metheds of graph multiplication and double integral.The paper analyzed the reasons and the error given with a parabola replacing a circle and pointed out that the error using parabolic arc line is very small,enough to meet the engineering design accuracy.
Journal of Magnetism and Magnetic Materials, 2019
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Growth of Uniform Nickel Wire Arrays
MRS Proceedings, 2005
Nickel nanowire arrays with high aspect ratio and large packing densities have been grown in thin... more Nickel nanowire arrays with high aspect ratio and large packing densities have been grown in thin nanochannel glass templates by an electrochemical deposition method. The templates were polished and etched for enough time to obtain parallel, uniform, hollow channels. One of surfaces of templates was then deposited with copper to provide an electrode. The pH value of NiSO4 aqueous solution was 1 to 2 and the deposition potential was chosen to be –1.2 V versus the saturated Calomel electrode. Obtained nickel wires were circular, each approximately 80 – 160 nm in diameter and 150 μm long, depending on the diameter of nanochannel. Finally, scanning electron microscopy has been used to characterize the nanostructures. Magnetic properties of the nickel wire arrays have been also investigated by using a superconducting quantum interference device magnetometer (SQUID).
A comparison of the morphological and electrical properties of sol-gel dip coating and atomic layer deposition of ZnO on 3D nanospring mats
Materials Research Express, 2018
We report on the morphological and electrical properties, with (light) and without (dark) UV illu... more We report on the morphological and electrical properties, with (light) and without (dark) UV illumination, of conformal coatings of ZnO on silica nanosprings deposited by sol-gel and atomic layer deposition (ALD) for the first time. Field Emission Scanning Electron Microscopy (FESEM) imaging showed that both methods produce conformal coatings of ZnO on the nanosprings. The surface of the sol-gel coatings exhibited cracks at higher numbers of dipping/sintering cycles, while the morphology of ALD ZnO films were always smooth and devoid of cracks. The effective photoconductivity of the sol-gel ZnO coated nanospring mats increased nonlinearly with increasing coating thickness. The corresponding dark effective conductivity of the sol-gel ZnO coated nanospring mats also increased within the same thickness range. Alternatively, the effective photoconductivity of the ALD ZnO coated nanospring mats increased linearly with increasing coating thickness. The corresponding dark effective conductivity also increased within the same thickness range. The superior effective conductivity and photoconductivity of the ALD ZnO coated nanospring mats is attributed to the uniformity of the coating and the absence of cracks, which are observed for the thicker sol-gel ZnO coatings.
Development of High Resistive and High Magnetization Soft Thin Film and Fabrication of Thin Film Inductors
ABSTRACT The goals of the program was to develop soft magnetic films, fabricate test structures, ... more ABSTRACT The goals of the program was to develop soft magnetic films, fabricate test structures, to device a microwave inductor and integrate thin film inductor onto CMOS (complimentary metal oxide semiconductor). Six researchers from four different academic departments including materials science, physics, chemical engineering and electrical engineering have conducted their own research projects. This report contains six sub-reports for detailed information on the results.
Efficient method to attach enzymes to monodispersive iron nanoparticles
INTERMAG 2006 - IEEE International Magnetics Conference, 2006
One of the major concerns in environmental, biomedical and other applications of enzyme is their ... more One of the major concerns in environmental, biomedical and other applications of enzyme is their short life time restricting its use outside the cell. An effective way to increase the stability and longevity of enzymes from hours to days is to combine them with nanoparticles. With this aim, two different catabolic enzymes-trypsin and peroxidase were attached to the uniform magnetic
Details of selected paper
Design and Implementation of Readable/Writable Electronic Diskette in PC-Series Computers
Cluster Assembled Magnetic and Hard Films Produced by Energetic Cluster Impact (ECI)
ABSTRACT
Anti-oxidation and Scavenging Effects of a Traditional Medicine Prescription" San Sheng Yang Yin Yin
Objective\ Effects of a traditional Chinese medicine prescription \!San Sheng Yang Yin Yin"o... more Objective\ Effects of a traditional Chinese medicine prescription \!San Sheng Yang Yin Yin"on changes of LPO contents in mouse tissues induced by γ\|radiation exposure are observed.Methods\ LPO contents were determined by the modified spectrophotometry of TBA.Scavenging effects on hydroxyl free radicals produced in vitro by Ferton reaction were studied by ESR method.Results\ Results showed that the prescription is effective in reducing LPO contents in the tissues,and has good scavenging effects on hydroxyl free radicals.Moreover,the prescription could increase the survival rates of irradiated mice and prolong the survival duration.Conclusions\ \!San Sheng Yang Yin Yin"would have a good application prospect in the treatment of radiation injury and as a supplement in radiation therapy.
Magnetic properties of nanoclusters embedded in a matrix
ABSTRACT
Investigations of factors influencing the properties of metallic iron nanoparticles
A Novel Nanotechnology for Nuclear Fuel Recycling——Ultrahigh Selective Actinide Separation of Conjugates of Magnetic Nanoparticle-Chelator
Ferromagnetism in doped or undoped spintronics nanomaterials
ABSTRACT
Hard and wear resistant coatings for the moulding and embossing of glasses at elevated temperatures