摘要：Many kinds of devices with cam have been widely used in various mechanical equipments. However, non-equalization machining for spatial cam trough remains to be a difficult problem. This paper focuses on the analysis of running conditions and machining processes of spatial cam with oscillating follower. We point out the common errors in the biased distance cutting. By analyzing the motion of oscillating follower of spatial cam, we present a new 3D curve expansion model of spatial cam trough-outline. Based on this model, we have proposed a machining method for trochoidal milling with non-equalization diameter cutter. This new method has led to a creative and effective way for non-equalization diameter machining for spatial cam with oscillating follower.

摘要：Recently,multidimensional(or multi-channel)sensing methodology has attracted broad attention in the field of analytical chemistry due to its fascinating merits.A variety of multidimensional sensors based on sensor arrays,lab-on-a-molecule/nanoparticle and smart chip strategies have been designed to differentiate chemical structure and property similar analytes and complex *** recognition algorithms are usually used and allow these sensors to fulfill such *** this review,the recent advances of multidimensional sensor devices were firstly summarized,and particularly focused on their design strategies and applications in monitoring of biological active molecules,biomarkers,microbes,foods and beverages,***,some limitations and possible solutions of multidimensional sensors were *** finally,potential applications of this technique in the future were *** review would help the readers who are interested in multidimensional sensing methodology to understand the research progresses and trends.

摘要：By researching the ternary flip-tlop and the adiabatic Domino circuit,a novel design of low-power ternary Domino JKL flip-flop on the switch level is ***,the switch-level structure of the ternary adiabatic Domino JKL flip-flop is derived according to the switch-signal theory and its truth *** the ternary loop operation circuit and ternary reverse loop operation circuit are achieved by employing the ternary JKL tlip-tlop. Finally,the circuit is simulated by using the Spice tool and the results show that the logic function is correct. The energy consumption of the ternary adiabatic Domino JKL flip-flop is 69%less than its conventional Domino counterpart.

摘要：A novel narrow-band filter based on the dual-core doped photonic crystal fiber is *** optimizing structure parameters of the photonic crystal fiber,the index curves of the fundamental modes for the two cores are crossed at 1.55 μm and the wavelength-selective coupling is *** characteristics of the filter are numerically simulated by the full-vector beam propagation *** the simulation results show that the coupling length and the bandwidth of the filter are 16.4 mm and 9 nm at-3 dB loss,*** demonstrates the advantages of the filter with a small size,a low transmission loss and the narrow-band width.

摘要：In view of single machine to infinite bus system with static synchronous compensator, which is affected by internal and external disturbances, a nonlinear adaptive robust controller is constructed based on the improved dynamic surface control method(IDSC). Compared with the conventional DSC, the sliding mode control is introduced to the dynamic surface design procedure, and the parameter update laws are designed using the uncertainty equivalence criterions. The IDSC method not only reduces the complexity of the controller but also greatly improves the system robustness, speed and accuracy. The derived controller cannot only attenuate the influences of external disturbances against system output, but also has strong robustness to system parameters variance because the damping coefficient is considered in the internal parameter uncertainty. Simulation result reveals that the designed controller can effectively improve the dynamic performances of the power system.

摘要：The NiSiAlY material is a promising candidate to replace NiCrAlY,which can withstand the harsh saltspray conditions in marine *** efficiently design novel NiSiAlY alloys,this work establishes a thermodynamic dataset of the Al-Ni-Si-Y quaternary system using the CALPHAD(CALculation of PHAse Diagrams)*** employ this database to calculate and predict the phase constitutions and solidification behaviors of different NiSiAlY alloys concerning the content variations of Al and *** have further proposed the selection of the NiSiAlY alloys for serving in marine salt-spray environment with three constraints:(i)outstanding mechanical property;(ii)good high-temperature anti-oxidation;(iii)excellent corrosion *** results in a compositional range of the NiSiAlY alloys with 1 wt%<w(Si)<5 wt%,11 wt%<w(Al)<20 wt%and w(Y)=1 wt%,which corresponds the L1_(2)+bcc B2+Ni_(5)Y ternary phase region at temperatures ranging from~500 to~1000℃.Our predictions are validated by key experiments,suggesting that the model-based description of the Al-Ni-Si-Y system can serve as a guidance to design the novel NiSiAlY alloys in resisting harsh salt-spray environment.

摘要：MCrAlY(M=Ni,Co,NiCo)alloys have been widely used as a bond layer for thermal barrier coatings(TBCs).However;oxides form discontinuously on MCrAlY surface in the marine environment since Cr_(2)O_(3)can react with NaCl and H_(2)O at temperatures above 500℃.Replacing Cr with other alloying elements(such as Si)might prevent severe salt-spray corrosion *** save time and efforts in materials design of the Ni-Si-Al-Y system;we obtained the thermodynamic descriptions of the ternary compounds by coupling the CALPHAD(CALculation of PHAse Diagrams)approach and first-principles *** and eighteen ternary compounds were evaluated and calculated in the Al-Si-Y and Ni-Si-Y systems;*** diagrams of the two systems were depicted after a series of experimental Al/Ni-Si-RE(RE denotes rare earth elements,including La,Ce,Pr,Nd,Sm,Gd,Dy,Ho,and Er)systems being *** is found that the RE elements with the same reference states tend to form ternary compounds with the same crystal *** model-based descriptions are the basis for the research and development of novel NiSiAlY alloys in resisting high-temperature corrosion.

摘要：In this paper the design and implementation of Multi-Dimensional (MD) filter, particularly 3-Dimensional (3D) filter, are presented. Digital (discrete domain) filters applied to image and video signal processing using the novel 3D multirate algorithms for efficient implementation of moving object extraction are engineered with an example. The multirate (decimation and/or interpolation) signal processing algorithms can achieve significant savings in computation and memory usage. The proposed algorithm uses the mapping relations of z-transfer functions between non-multirate and multirate mathematical expressions in terms of time-varying coefficient instead of traditional polyphase de- composition counterparts. The mapping properties can be readily used to efficiently analyze and synthesize MD multirate filters.

摘要：First the research is conducted on the design of the two-phase sinusoidal power clock generator in this paper. Then the design of the new adiabatic logic circuit adopting the two-phase sinusoidal power clocks--Clocked Transmission Gate Adiabatic Logic （CTGAL） circuit is presented. This circuit makes use of the clocked transmission gates to sample the input signals, then the output loads are charged and discharged in a fully adiabatic manner by using bootstrapped N-Channel Metal Oxide Semiconductor （NMOS） and Complementary Metal Oxide Semiconductor （CMOS） latch structure. Finally, with the parameters of Taiwan Semiconductor Manufacturing Company （TSMC） 0.25um CMOS device, the transient energy consumption of CTGAL, Bootstrap Charge-Recovery Logic （BCRL） and Pass-transistor Adiabatic Logic （PAL） including their clock generators is simulated. The simulation result indicates that CTGAL circuit has the characteristic of remarkably low energy consumption.

摘要：模型截断设计方法在无限维系统控制中得到广泛的应用,但是其自身存在信息丢失的缺陷而限制了控制器对高频扰动抑制的性能.本文研究具有内部和Neumann边界控制的抛物型系统,其中系统采用边界测量.内部控制采用比例反馈形式,其中反馈增益核由Sturm-Liouville系统稳定性分析来待定;类似地,边界反馈的设计也采用待定反馈增益核的方式,最终对描述系统稳定性的Sturm-Liouville系统采用伪谱方法进行求解.数字仿真结果表明了该方法的有效性.