Essays about: "Low-Frequency"

Showing result 21 - 25 of 191 essays containing the word Low-Frequency.

  1. 21. Sensor modelling for anomaly detection in time series data

    University essay from Linköpings universitet/Statistik och maskininlärning

    Author : ZAHRA JALIL POUR; [2022]
    Keywords : anomaly detection; LSTM; Autoencoder; multivariate time series data;

    Abstract : Mechanical devices in industriy are equipped with numerous sensors to capture thehealth state of the machines. The reliability of the machine’s health system depends on thequality of sensor data. In order to predict the health state of sensors, abnormal behaviourof sensors must be detected to avoid unnecessary cost. READ MORE

  3. 22. Filtering of Clinical NGS Data to Improve Low Allele Frequency Variant Calling

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Tomas Cumlin; [2022]
    Keywords : Next-generation sequencing; Variant calling; Clinical sequencing; Substitution error; Cancer sequencing; Error rate; substitution; Somatic mutation;

    Abstract : Massive parallel sequencing (NGS) is useful in detecting and later classifying somatic driver mutations in cancer tumours. False-positive variants occur in the NGS workflow and they may be mistaken for low frequency somatic cancer mutations in a patient sample. READ MORE

  4. 23. Extraction of Loudspeaker- and room impulse responses under overlapping conditions

    University essay from Uppsala universitet/Signaler och system

    Author : Felix Gustafsson; [2022]
    Keywords : Signal processing; Optimization; Acoustics; Dereverberation; Sparse deconvolution; Multipath propagation;

    Abstract : A loudspeaker is often considered to be a Linear Time Invariant (LTI) system, which can be completely categorized by its impulse response. What sets loudspeakers apart from other LTI-systems is the acoustical aspect including echoes, which makes it a lot harder to take accurate noise free measurements compared to other LTI-systems such as a simple RC circuit. READ MORE

  5. 24. Twice the price : An empirical study in procurement of homogenousgoods for Swedish municipalities

    University essay from Linköpings universitet/Nationalekonomi; Linköpings universitet/Filosofiska fakulteten

    Author : Farzam Ebrahimi; Jakob Sunström; [2022]
    Keywords : Procurement; Municipalities; Price discrepancies; Homogenous goods; Opportunism; Transaction Costs; Horizontal Integration; Asymmetric information;

    Abstract : Background: Studies of complex and big-ticket tenders such as construction contracts have been the main research focus of public procurement. The efficiency of these low frequency transactionsis inherently hard to study, since the real world offers a wide range of variables that could explain the discrepancies. READ MORE

  6. 25. Dynamic Analysis of Double Tee Floors Subjected to Human Activity : A comparison between a standard- and a modified cross section

    University essay from KTH/Bro- och stålbyggnad

    Author : Bjondina Hoti; Fadi Simonides; [2022]
    Keywords : ;

    Abstract : Building with larger spans and more slender elements is more common today since the demand for open floor plans has increased. The consequence is that low frequency floors and vibration problems arise. Such floors tend to undergo large vibrations since their low eigenfrequency coincides with the frequency which human activities have. READ MORE