Essays about: "mode shapes"

Showing result 6 - 10 of 64 essays containing the words mode shapes.

  1. 6. Design and Construction of a Multi-Port Beamsplitter Based on Few-Mode-Fibers

    University essay from Linköpings universitet/Informationskodning

    Author : Daniel Spegel-Lexne; [2022]
    Keywords : beamsplitter; spatial modes; Space division multiplexing; superpositions; LP-modes; few-mode fibers; multi-mode interference; self-imaging; heterogeneous fiber structures; quantum communication; quantum optics;

    Abstract : A MBS (Multi-port beamsplitter) for higher dimensional quantum communication has been designed and constructed and the theory and method for this is presented in this thesis. It uses optical fibers in a heterogeneous structure with a single-mode fiber spliced to a multi-mode fiber and then spliced to a few-mode fiber. READ MORE

  3. 7. Comparing different methods of measuring particle size for pharmaceutical excipients

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Jiawen Wang; [2022]
    Keywords : particle size; comparison; Malvern analysis; Qicpic analysis; Pharmaceutical technology; Technology and Engineering;

    Abstract : In pharmaceutical science, particle size is one of the most fundamental parameters of materials, but different particle-sizing analysis methods lack a uniform standard for measuring irregular particle size, making it difficult to compare the accuracy and applicability of different particle-sizing analysis methods. Experiments on excipients used in pharmaceuticals are carried out in this paper by laser diffraction analysis (Malvern wet and dry), dynamic image analysis (Qicpic), and microscopic methods (Qicpic, SEM, and light microscopy) to determine the applicability and limitations of each method, as well as to clarify their advantages and disadvantages. READ MORE

  4. 8. Experimental acceleration Measurements and Finite Elements Modeling

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Ibrahim Alnimairi; Salim Arrabi; [2021]
    Keywords : signal processing. PSD; mode shapes; Mdof; Sdof; PSDT-SVD; finite element modelling;

    Abstract : Heavy crushing machines under their production shifts, creates various levels of vibration, noise and dynamic forces which can be transferred to other parts of the industrial unit. Such kind of factors applies continuous forces on machine parts which can cause gradual fatigue, creep and eventually failure of machine. READ MORE

  5. 9. HSI effects on pedestrian bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Giancarlo Costa; [2021]
    Keywords : Dynamics; HSI; Human Structure Interaction; pedestrian bridge;

    Abstract : The study on Human Structure Interaction (HSI) effects represent a new research field in the design of pedestrian bridges. The presence of pedestrians on the structure affects the dynamic properties of the bridge, and these changes may be quantified in order to design pedestrian bridges in a more efficient way. READ MORE

  6. 10. Numerical and Experimental Modal Analysis of CNC Machine

    University essay from Blekinge Tekniska Högskola

    Author : Pacifique Uwajambo; Nisha Thakur; [2021]
    Keywords : ;

    Abstract : Numerical and Experimental Modal Analysis of RAW CNC milling machine was performed in this project. The RAW CNC machine's lightweight, easy assembling, and operation features make it a good choice for hobbyists and professionals. READ MORE