A NOVEL SECOND-ORDER TRANSITION IN ORGANIC HYBRIDS CONSISTING OF POLYMERS AND SMALL MOLECULES

A novel transition appeared above thc glass transition temperature of chlorinated polyethylene (CPE) for binaryblends of CPE and additives such as organic small molecules or oligomers. This transition was assigned to the dissociation ofintermolecular hydrogen bonds between the polymer ard additive within the edditive rich phase. Of particular interest is thata novel pyramid crystal was observed in the annealed CPE/hindered phenol blends. Another intriguing observation is thatthese polymer/small molecule blends organized by intermolecular hydrogen bonding have several potential properties, suchas shape-memorization, self-restoration, self-adhesiveness and super damping.     

C_(60)-TTF及Ru-oligothienylacetylide复合物的设计合成:新型非线性光诱导效应纳米材料(英文)

Nonlinear optics has been the subject of intensive research because of its wide applications in field of photonics, nanophotonics[1] and optoelectroncs such as optical signal processing, broad-band optical communications, integrated optics, optical sensing, optical poling, optical limiting, optical computing etc.     

A Photoionization TOF Mass Spectrometric Investigation on Neutral Aluminum Clusters

IntensiveinvestigationshavebeenPerformedonaluminumclustersrecently,mainlyinattemptstotestanddevelopideasaboutmetalclusters,aconcentrativetopicofwhichistotestthevalidityoftheelectronicshel]modelsforaluminumclusters.Intheelectronicshellmodels,metalclustersaresimplifiedasvalenceelectronsmovingaroundasphericalorspheroidalpositively--chargedbackground,wherethevalenceelectronswithinaclusteraredelocalizedandthedetailedatomicconfigurationplayaminorrole.Suchsimplifiedmodelscanexplainmostofthediscontinu…     

A Two-layer Intrinsically Fuzzy Morphology Image Processor Architecture

ＡＴｗｏ－ｌａｙｅｒＩｎｔｒｉｎｓｉｃａｌｌｙＦｕｚｚｙＭｏｒｐｈｏｌｏｇｙＩｍａｇｅＰｒｏｃｅｓｓｏｒＡｒｃｈｉｔｅｃｔｕｒｅ￥ＳＨＡＯＬａｎ；ＬＩＵＬｉｒｅｎ；ＬＩＧａｕｏｑｉａｎｇ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎｄＦｉｎ...     

Theoretically study on measurement of velocity distribution by means of laser induced fluorescence

Based on two-level atomic density matrix movement equation and emitting operator, the physical model is established for laser induced moving atomic resonant fluores cence. Theoretically study showsthat the measurement of atomic velocity distribution by means of laser induced fluorescence is only valid when the physical factors, such as atomic natural line width, laser power, laser line width, is suitably selected.     

A study of fringe pattern trace and analysis

In this paper,the gometric center and centroid method are suggested to tracecenter location of a close fringe pattern.The fringe pattern of the interferogram is analysed byusing the general Fourier method.The analytic accuracy is controlled by using P-test methodof statistics.The analytic accuracy and sampling speed of the fringe pattern depend on thequality of the interferogram and the numbers of the sampling points.     

PSPICE controlled-source models of analogous circuit for Langevin type piezoelectric transducer

The design and construction of wide-band and high efficiency acoustical projector has long been considered an art beyond the capabilities of many smaller groups. Langevin type piezoelectric transducers have been the most candidate of sonar array system applied in underwater communication. The transducers are fabricated, by bolting head mass and tail mass on both ends of stacked piezoelectric ceramic, to satisfy the multiple, conflicting design for high power transmitting capability. The aim of this research is to study the characteristics of Langevin type piezoelectric transducer that depend on different metal loading. First, the Mason equivalent circuit is used to model the segmented piezoelectric ceramic, then, the impedance network of tail and head masses is deduced by the Newton's theory. To obtain the optimal solution to a specific design formulation, PSPICE controlled-source programming techniques can be applied. A valid example of the application of PSPICE models for Langevin type transducer analysis is presented and the simulation results are in good agreement with the experimental measurements.     

Using Pure-Phase Element Array to Generate Uniform Laser Focal Profiles

Ｕｓｉｎｇ　Ｐｕｒｅ－Ｐｈａｓｅ　Ｅｌｅｍｅｎｔ　Ａｒｒａｙ　ｔｏ　Ｇｅｎｅｒａｔｅ　Ｕｎｉｆｏｒｍ　Ｌａｓｅｒ　Ｆｏｃａｌ　ＰｒｏｆｉｌｅｓＵｓｉｎｇＰｕｒｅ－ＰｈａｓｅＥｌｅｍｅｎｔＡｒｒａｙｔｏＧｅｎｅｒａｔｅＵｎｉｆｏｒｍＬａｓｅｒＦｏｃａｌ...     

Optical Recording Performance of In_（47）Sb_（14）Te_（39）Phase Change Thin Films using 514．5nm Wavelength Laser Beam

ＯｐｔｉｃａｌＲｅｃｏｒｄｉｎｇＰｅｒｆｏｒｍａｎｃｅｏｆＩｎ_（４７）Ｓｂ_（１４）Ｔｅ_（３９）ＰｈａｓｅＣｈａｎｇｅＴｈｉｎＦｉｌｍｓｕｓｉｎｇ５１４．５ｎｍＷａｖｅｌｅｎｇｔｈＬａｓｅｒＢｅａｍ￥ＭＥＮＬｉｑｉｕ；ＪＩＡＮＧＦｕｓｏｎｇ；ＧＡＮ?..     

Two－Side Electron Beam Pumping System For Hundred－Joule－Level KrF Excimer Laser

Ｔｗｏ－ＳｉｄｅＥｌｅｃｔｒｏｎＢｅａｍＰｕｍｐｉｎｇＳｙｓｔｅｍＦｏｒＨｕｎｄｒｅｄ－Ｊｏｕｌｅ－ＬｅｖｅｌＫｒＦＥｘｃｉｍｅｒＬａｓｅｒ￥ＭＡＷｅｉｙｉ；ＳＨＡＮＹｕｓｈｅｎｇ；ＺＨＯＵＫｕｎｇｏｎｇ；ＷＡＮＧＹｏｕｔｉａｎ；ＺＨＡＮＧＤｏｎｇ；...