Search Results - "Ullrich, J"

Turing Meets Shannon: Computable Sampling Type Reconstruction With Error Control by Boche, Holger, Monich, Ullrich J.

“…The conversion of analog signals into digital signals and vice versa, performed by sampling and interpolation, respectively, is an essential operation in…”
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Downsampling of Bounded Bandlimited Signals and the Bandlimited Interpolation: Analytic Properties and Computability by Boche, Holger, Monich, Ullrich J.

“…Downsampling and the computation of the bandlimited interpolation of discrete-time signals are two important concepts in signal processing. In this paper we…”
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Algorithmic Computability of the Signal Bandwidth by Boche, Holger, Monich, Ullrich J.

“…The bandwidth of a bandlimited signal is an important number that is relevant in many applications and concepts. For example, according to the Shannon sampling…”
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Distributional Behavior of Convolution Sum System Representations by Boche, Holger, Monich, Ullrich J.

“…In this paper, we study the validity of the usual convolution sum sampling representation of linear time-invariant (LTI) systems. We consider continuous input…”
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Turing Computability of Fourier Transforms of Bandlimited and Discrete Signals by Boche, Holger, Monich, Ullrich J.

“…The Fourier transform is an important operation in signal processing. However, its exact computation on digital computers can be problematic. In this paper we…”
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On the Arithmetic Complexity of the Bandwidth of Bandlimited Signals by Boche, Holger, Bock, Yannik N., Monich, Ullrich J.

“…The bandwidth of a signal is an important physical property that is of relevance in many signal- and information-theoretic applications. In this paper we study…”
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On the Solvability of the Peak Value Problem for Bandlimited Signals With Applications by Boche, Holger, Monich, Ullrich J.

“…In this paper we study from an algorithmic perspective the problem of finding the peak value of a bandlimited signal. This problem plays an important role in…”
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Ultrafast electron diffraction imaging of bond breaking in di-ionized acetylene by Wolter, B., Pullen, M. G., Le, A.-T., Baudisch, M., Doblhoff-Dier, K., Senftleben, A., Hemmer, M., Schröter, C. D., Ullrich, J., Pfeifer, T., Moshammer, R., Gräfe, S., Vendrell, O., Lin, C. D., Biegert, J.

“…Visualizing chemical reactions as they occur requires atomic spatial and femtosecond temporal resolution. Here, we report imaging of the molecular structure of…”
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Computable Time Concentration of Bandlimited Signals and Systems by Boche, Holger, Monich, Ullrich J.

“…Turing computability deals with the question of what is theoretically computable on a digital computer, and hence is relevant whenever digital hardware is…”
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Scaling Laws of the Two-Electron Sum-Energy Spectrum in Strong-Field Double Ionization by Ye, Difa, Li, Min, Fu, Libin, Liu, Jie, Gong, Qihuang, Liu, Yunquan, Ullrich, J

“…The sum-energy spectrum of two correlated electrons emitted in nonsequential strong-field double ionization (SFDI) of Ar was studied for intensities of 0.3 to…”
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Tone Reservation for OFDM With Restricted Carrier Set by Boche, Holger, Monich, Ullrich J.

“…The tone reservation method can be used to reduce the peak to average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) transmission…”
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Optimal Tone Reservation for CDMA Systems by Boche, Holger, Monich, Ullrich J.

“…In this paper, we analytically analyze the tone reservation method for the reduction of the peak to average power ratio (PAPR) in code division multiple access…”
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Developing interventions for cancer-related cognitive dysfunction in childhood cancer survivors by Castellino, Sharon M, Ullrich, Nicole J, Whelen, Megan J, Lange, Beverly J

“…Survivors of childhood cancer frequently experience cancer-related cognitive dysfunction, commonly months to years after treatment for pediatric brain tumors,…”
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Peak-to-Average Power Control via Tone Reservation in General Orthonormal Transmission Systems by Boche, Holger, Monich, Ullrich J.

“…In this paper, we study the tone reservation method for reducing the peak-to-average power ratio (PAPR) in general orthonormal transmission systems. We prove…”
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Non-Existence of Convolution Sum System Representations by Boche, Holger, Monich, Ullrich J., Meinerzhagen, Bernd

“…Convolution sum system representations are commonly used in signal processing. It is known that the convolution sum, treated as the limit of its partial sums,…”
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NLRP3 in somatic non-immune cells of rodent and primate testes by Walenta, Lena, Schmid, Nina, Schwarzer, J Ullrich, Köhn, Frank-Michael, Urbanski, Henryk F, Behr, Rüdiger, Strauss, Leena, Poutanen, Matti, Mayerhofer, Artur

“…NLRP3 is part of the NLRP3 inflammasome and a global sensor of cellular damage. It was recently discovered in rodent Sertoli cells. We investigated NLRP3 in…”
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ATP-mediated Events in Peritubular Cells Contribute to Sterile Testicular Inflammation by Walenta, Lena, Fleck, David, Fröhlich, Thomas, von Eysmondt, Hendrik, Arnold, Georg J., Spehr, Jennifer, Schwarzer, J. Ullrich, Köhn, Frank-Michael, Spehr, Marc, Mayerhofer, Artur

“…Peritubular myoid cells, which form the walls of seminiferous tubules in the testis, are functionally unexplored. While they transport sperm and contribute to…”
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A Two Channel System Approximation for Bandlimited Functions by Monich, Ullrich J., Boche, Holger

“…The approximation of stable linear time-invariant (LTI) systems is studied for the Paley-Wiener space PW π 1 of bandlimited functions with absolutely…”
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Insights into replicative senescence of human testicular peritubular cells by Schmid, Nina, Flenkenthaler, Florian, Stöckl, Jan B., Dietrich, Kim-Gwendolyn, Köhn, Frank M., Schwarzer, J. Ullrich, Kunz, Lars, Luckner, Manja, Wanner, Gerhard, Arnold, Georg J., Fröhlich, Thomas, Mayerhofer, Artur

“…There is evidence for an age-related decline in male reproductive functions, yet how the human testis may age is not understood. Human testicular peritubular…”
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Molecular structure retrieval directly from laboratory-frame photoelectron spectra in laser-induced electron diffraction by Sanchez, A., Amini, K., Wang, S.-J., Steinle, T., Belsa, B., Danek, J., Le, A. T., Liu, X., Moshammer, R., Pfeifer, T., Richter, M., Ullrich, J., Gräfe, S., Lin, C. D., Biegert, J.

“…Ubiquitous to most molecular scattering methods is the challenge to retrieve bond distance and angle from the scattering signals since this requires…”
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