cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Traceable mixnets
Creators: name: Agrawal, Prashant
name: Nakarmi, Abhinav
name: Jhawar, Mahavir Prasad
name: Sharma, Subodh
name: Banerjee, Subhashis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: We introduce the notion of \emph{traceable mixnets}. In a traditional mixnet, multiple mix-servers jointly permute and decrypt a list of ciphertexts to produce a list of plaintexts, along with a proof of correctness, such that the association between individual ciphertexts and plaintexts remains completely hidden. However, in many applications, the privacy-utility tradeoff requires answering some specific queries about this association, without revealing any information beyond the query result. We consider queries of the following types: a) given a ciphertext in the mixnet input list, whether it encrypts one of a given subset of plaintexts in the output list, and b) given a plaintext in the mixnet output list, whether it is a decryption of one of a given subset of ciphertexts in the input list. Traceable mixnets allow the mix-servers to jointly prove answers to the above queries to a querier such that neither the querier nor a threshold number of mix-servers learn any information beyond the query result. Further, if the querier is not corrupted, the corrupted mix-servers do not even learn the query result. We first comprehensively formalise these security properties of traceable mixnets and then propose a construction of traceable mixnets using novel distributed zero-knowledge proofs (ZKPs) of set membership and of a statement we call reverse set membership. Although set membership has been studied in the single-prover setting, the main challenge in our distributed setting lies in making sure that none of the mix-servers learn the association between ciphertexts and plaintexts during the proof. We implement our distributed ZKPs and show that they are faster than state-of-the-art by at least one order of magnitude.
description: PETS (Privacy Enhancing Technologies Symposium) 2024
Plasma kinetics: Discrete Boltzmann modelling and Richtmyer-Meshkov instability
Creators: name: Song, Jiahui
name: Xu, Aiguo
name: Miao, Long
name: Chen, Feng
name: Liu, Zhipeng
name: Wang, Lifeng
name: Wang, Ningfei
name: Hou, Xiao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A discrete Boltzmann model (DBM) for plasma kinetics is proposed. The constructing of DBM mainly considers two aspects. The first is to build a physical model with sufficient physical functions before simulation. The second is to present schemes for extracting more valuable information from massive data after simulation. For the first aspect, the model is equivalent to a magnetohydrodynamic model plus a coarse-grained model for the most relevant TNE behaviors including the entropy production rate. A number of typical benchmark problems including Orszag-Tang (OT) vortex problem are used to verify the physical functions of DBM. For the second aspect, the DBM use non-conserved kinetic moments of (f-feq) to describe non-equilibrium state and behaviours of complex system. The OT vortex problem and the Richtmyer-Meshkov instability (RMI) are practical applications of the second aspect. For RMI with interface inverse and re-shock process, it is found that, in the case without magnetic field, the non-organized momentum flux shows the most pronounced effects near shock front, while the non-organized energy flux shows the most pronounced behaviors near perturbed interface. The influence of magnetic field on TNE effects shows stages: before the interface inverse, the TNE strength is enhanced by reducing the interface inverse speed; while after the interface inverse, the TNE strength is significantly reduced. Both the global average TNE strength and entropy production rate contributed by non-organized energy flux can be used as physical criteria to identify whether or not the magnetic field is sufficient to prevent the interface inverse.
description: 20 pages, 15 figures
State Representation Learning Using an Unbalanced Atlas
Creators: name: Meng, Li
name: Goodwin, Morten
name: Yazidi, Anis
name: Engelstad, Paal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The manifold hypothesis posits that high-dimensional data often lies on a lower-dimensional manifold and that utilizing this manifold as the target space yields more efficient representations. While numerous traditional manifold-based techniques exist for dimensionality reduction, their application in self-supervised learning has witnessed slow progress. The recent MSimCLR method combines manifold encoding with SimCLR but requires extremely low target encoding dimensions to outperform SimCLR, limiting its applicability. This paper introduces a novel learning paradigm using an unbalanced atlas (UA), capable of surpassing state-of-the-art self-supervised learning approaches. We investigated and engineered the DeepInfomax with an unbalanced atlas (DIM-UA) method by adapting the Spatiotemporal DeepInfomax (ST-DIM) framework to align with our proposed UA paradigm. The efficacy of DIM-UA is demonstrated through training and evaluation on the Atari Annotated RAM Interface (AtariARI) benchmark, a modified version of the Atari 2600 framework that produces annotated image samples for representation learning. The UA paradigm improves existing algorithms significantly as the number of target encoding dimensions grows. For instance, the mean F1 score averaged over categories of DIM-UA is ~75% compared to ~70% of ST-DIM when using 16384 hidden units.
Capturing Glacier-Wide Cryoseismicity With Distributed Acoustic Sensing
Creators: name: Walter, Fabian Thomas
name: Paitz, Patrick
name: Fichtner, Andreas
name: Edme, Pascal
name: Gajek, Wojciech
name: Lipovsky, Bradley P.
name: Martin, Eileen
Publisher: name: ETH Zurich
Year: 2021

description: Over the past 1-2 decades, seismological measurements have provided new and unique insights into glacier and ice sheet dynamics. At the same time, sensor coverage is typically limited in harsh glacial environments with littile or no access. Turning kilometer-long fiber optic cables placed on the Earth’s surface into thousands of seismic sensors, Distributed Acoustic Sensing (DAS) may overcome the limitation of sensor coverage in the cryosphere.

First DAS applications on the Greenland and Antarctic ice sheets and on Alpine glacier ice have highlighted the technique’s superiority. Signals of natural and man-made seismic sources can be resolved with an unrivaled level of detail. This offers glaciologists new perspectives to interpret their seismograms in terms of ice structure, basal boundary conditions and source locations. However, previous studies employed only relatively small network scales with a point-like borehole deployment or < 1 km cable aperture at the ice surface.

Here we present a DAS installation, which aims to cover the majority of an Alpine glacier catchment: For one month in summer 2020 we deployed a 9 km long fiber optic cable on Rhonegletscher, Switzerland, and gathered continuous DAS data. The cable followed the glacier’s central flow line starting in the lowest kilometer of the ablation zone and extending well into the accumulation area. Even for a relatively small mountain glacier such as Rhonegletscher, cable deployment was a considerable logistical challenge. However, initial data analysis illustrates the benefit compared to conventional cryoseismological instrumentation: DAS measurements capture ground deformation over many octaves, including typical high-frequency englacial sources (10s to 100s of Hz) related to crevasse formation and basal sliding as well as long period signals (10s to 100s of seconds) of ice deformation. Depending on the presence of a snow cover, DAS records contain strong environmental noise (wind, meltwater flow, precipitation) and thus exhibit lower signal-to-noise ratios compared to conventional on-ice seismic installations. This is nevertheless outweighed by the advantage of monitoring ground unrest and ice deformation of nearly an entire glacier. We present a first compilation of signal and noise records and discuss future directions to leverage DAS data sets in glaciological research.
description: EGUsphere
Dactylorhiza majalis, beschriftet mit: D. majalis - Komplex.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1970

description: Wissenschaftliche botanische Probe von Blütenteilen aus Schmerikon, Schweiz SG, datiert 17.5.1970.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 57020, eingereiht als 1970-20
description: ETH-Bibliothek
Orchis mascula.
Blütenanalysen, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1970

description: Wissenschaftliche botanische Probe von Blütenteilen aus Mönthal, Schweiz AG, datiert 15.5.1970 (2 Lippen); Biberlikopf, Schweiz SG, datiert 17.5.1970 (1 Lippe).

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 57043, eingereiht als 1970-43
description: ETH-Bibliothek
Applying the Advice Taking Paradigm to Moral Cognition Research – A Follow-Up to the Case of Asymmetric Moral Conformity
Creators: name: Hennig, Max
name: Rebholz, Tobias R.
name: Hütter, Mandy
Publisher: name: PsychArchives
Year: 2023
Subjects: subject: moral judgment
subject: conformity
subject: social influence
subject: multilevel modeling
subject: moral cognition
subject: moral dilemmas
subject: 150

description: Though models of moral cognition recognize the importance of social influences, experimental investigations of conformity effects in moral judgment are surprisingly rare. A notable exception, Bostijn and Roets (2017a) demonstrated greater conformity to “deontological” compared to “consequentialist” majorities when judging moral dilemmas. Although they interpreted this effect in terms of a strategic shifting of responses, this was not actually investigated, as only post-manipulation judgments were measured. We reinvestigate this finding by also considering participants initial judgments prior to majority manipulation, thereby investigating judgment shifts directly. In addition, we will conduct an internal meta-analysis to investigate the influence of majority consistency on moral judgments. We plan to recruit 389 English-speaking adult participants based in the UK, 50% males and females, respectively. Participants judge the 10 moral dilemmas of Bostijn and Roets (2017a), providing initial and final judgment for each. In between, they are presented with fake information regarding the percentage of previous participants favouring either response (majority deontological vs. majority consequentialist vs. no-information control). Manipulation is within-participant, random assignment
Dactylorhiza cruenta. 
Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1970

description: Wissenschaftliche botanische Probe von Blütenteilen aus Ftan, Schweiz GR, datiert 25.6.1970.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 57006, eingereiht als 1970-06
description: ETH-Bibliothek
H/V spectral ratios at the InSight landing site using ambient noise and Marsquake records
Creators: name: Carrasco, Sebastián
name: Knapmeyer-Endrun, Brigitte
name: Margerin, Ludovic
name: Schmelzbach, Cédric
name: Clinton, John Francis
name: Stähler, Simon Christian
name: Giardini, Domenico
name: Kedar, Sharon
name: Grott, Matthias
name: Golombek, Matthew
name: Lognonne, Philippe
name: Banfield, Don
Publisher: name: ETH Zurich
Year: 2021

description: The InSight mission landed on Mars on November 26th, 2018 and its seismometer, the Seismic Experiment for Interior Structure (SEIS), has recorded continuous Martian seismic data since February 2019, consisting of mainly ambient seismic noise but also hundreds of seismic events.

We used the SEIS data to study the horizontal-to-vertical spectral ratios from both the ambient seismic noise (nHV) and the seismic events (eHV), for frequencies above 0.6 Hz, in order to get further constraints on the first tens of meters at the Insight landing site. The nHV curve was obtained by using data segments of 50 s over more than 400 Sols. The preferred nHV curve is observed during the northern spring and summer at low wind levels and it is a mostly flat curve with a prominent trough around ~2.4 Hz. Outside of these time periods, the nHV curve is contaminated with artificial peaks likely related to lander modes. On the other hand, the eHV curve was created using 336 seismic events with quality either A, B or C, as defined by the Marsquake Service. For each seismic event, we computed the signal-to-noise ratio (SNR) at each frequency and only frequencies with SNR>3 were used to obtain the final eHV curve. In addition to the 2.4 Hz trough, the final eHV curve shows a strong peak around 8 Hz, which is not observed from the ambient noise data possibly due to a lack of seismic energy in this frequency band able to excite it.

A preliminary inversion of the eHV curve, considering the fundamental mode of the Rayleigh wave only, shows that the 2.4 Hz trough and the 8 Hz peak can be explained by a shear-wave velocity model increasing from the surface to a depth of 5-8 m (likely the boundary between the regolith and coarse ejecta), in good agreement with previous analysis based on compliance observations, hammering measurements and satellite images. At this depth, a discontinuity leading to a higher velocity layer is observed, which is followed by a deeper low-velocity layer about 20 m thick. The modeling assuming body waves only or a full diffuse seismic wavefield is currently under investigation.
description: EGUsphere
SpinDOE: A ball spin estimation method for table tennis robot
Creators: name: Gossard, Thomas
name: Tebbe, Jonas
name: Ziegler, Andreas
name: Zell, Andreas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Spin plays a considerable role in table tennis, making a shot's trajectory harder to read and predict. However, the spin is challenging to measure because of the ball's high velocity and the magnitude of the spin values. Existing methods either require extremely high framerate cameras or are unreliable because they use the ball's logo, which may not always be visible. Because of this, many table tennis-playing robots ignore the spin, which severely limits their capabilities. This paper proposes an easily implementable and reliable spin estimation method. We developed a dotted-ball orientation estimation (DOE) method, that can then be used to estimate the spin. The dots are first localized on the image using a CNN and then identified using geometric hashing. The spin is finally regressed from the estimated orientations. Using our algorithm, the ball's orientation can be estimated with a mean error of 2.4° and the spin estimation has an relative error lower than 1%. Spins up to 175 rps are measurable with a camera of 350 fps in real time. Using our method, we generated a dataset of table tennis ball trajectories with position and spin, available on our project page.
Ophrys helenae.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1979

description: Wissenschaftliche botanische Probe von Blütenteilen aus Maziapass, Griechenland, datiert 17.5.1979.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 579049, eingereiht als 1979-49
description: ETH-Bibliothek
Real-Time Neural Appearance Models
Creators: name: Zeltner, Tizian
name: Rousselle, Fabrice
name: Weidlich, Andrea
name: Clarberg, Petrik
name: Novák, Jan
name: Bitterli, Benedikt
name: Evans, Alex
name: Davidovič, Tomáš
name: Kallweit, Simon
name: Lefohn, Aaron
Publisher: name: arXiv
Year: 2023
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: We present a complete system for real-time rendering of scenes with complex appearance previously reserved for offline use. This is achieved with a combination of algorithmic and system level innovations.
 Our appearance model utilizes learned hierarchical textures that are interpreted using neural decoders, which produce reflectance values and importance-sampled directions. To best utilize the modeling capacity of the decoders, we equip the decoders with two graphics priors. The first prior -- transformation of directions into learned shading frames -- facilitates accurate reconstruction of mesoscale effects. The second prior -- a microfacet sampling distribution -- allows the neural decoder to perform importance sampling efficiently. The resulting appearance model supports anisotropic sampling and level-of-detail rendering, and allows baking deeply layered material graphs into a compact unified neural representation.
 By exposing hardware accelerated tensor operations to ray tracing shaders, we show that it is possible to inline and execute the neural decoders efficiently inside a real-time path tracer. We analyze scalability with increasing number of neural materials and propose to improve performance using code optimized for coherent and divergent execution. Our neural material shaders can be over an order of magnitude faster than non-neural layered materials. This opens up the door for using film-quality visuals in real-time applications such as games and live previews.
description: Equal contribution by the first six authors. Order determined by a rock-paper-scissors tournament. Project page: https://research.nvidia.com/labs/rtr/neural_appearance_models/
Dactylorhiza caramulensis.
Blütenanalyse, montiert auf Papier erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1995

description: Wissenschaftliche botanische Probe von Blütenteilen aus Portugal: Tras-os-Montes: Cervos - Arcos (23.4.1995, HR 195032, Teil 1); Douro Litoral: Caramulo (24.4.1995, HR 195032, Teil 2).
In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 195032 (leg. P. Gölz), eingereiht unter Dactylorhiza maculata
description: ETH-Bibliothek
On the use of Distributed Acoustic Sensing for seismic divergence and curl estimations
Creators: name: Edme, Pascal
name: Paitz, Patrick
name: Sollberger, David
name: Kiers, Tjeerd
name: Perron, Vincent
name: Schmelzbach, Cédric
name: Fichtner, Andreas
name: Robertsson, Johan O.A.
Publisher: name: ETH Zurich
Year: 2021

description: Distributed Acoustic Sensing (DAS) is becoming an established tool for seismological and geophysical applications. DAS is based on Rayleigh scattering of light pulses conveyed in fibre optic cables, enabling unprecedented strain rate measurements over kilometers with spatial resolution of less than a meter. The low cost, logistically easy deployment, and the broadband sensitivity make it a very attractive technology to investigate an increasing number of man-made or natural phenomena.

One key restriction however is that DAS collects axial strain rate instead of the vector of ground motion, resulting in a poor sensitivity to broadside events like (at the surface) vertically incident waves or surface waves impinging perpendicular to the cable. Helically wound cables partially mitigate the issue but still do not provide omni-directional response as the typical vertical component of seismometers or geophones.

The present study is about the potential of using unconventional DAS cable layouts to replace and/or complement traditional sensors. We investigate the possibility of estimating the divergence and the vertical rotational components of the wavefield from cables deployed in a square or circular shape. The impact of the size of the arrangement as well as that of the interrogation gauge length is discussed.  Real data are shown and the results suggest that DAS has the potential to offer additional seismic component(s) useful for wave type identification and separation for example.
description: EGUsphere
Fluid Flow Modeling using Geochemistry to Characterize the Songwe Medium Temperature Geothermal System-Tanzania
Creators: name: Askin, Sitti Nur
name: Nnko, Martha
name: Josephat, Sadock
name: Mahecha, Albano
name: Mshiu, Elisante
name: Bertotti, Giovanni
name: Brehme, Maren
Publisher: name: ETH Zurich
Year: 2021

description: A geothermal area with only bicarbonate thermal water discharges at medium temperature requires a more integrated analysis than used in classical geochemical exploration. This signature is typical for steam-heated water, which commonly occurs at the margins of a geothermal system. However, these waters can also rise from carbonate rich layers in the central part of the field. Our study shows that fluid flow modeling can identify the exact source, flow pathways and temperatures of reservoir fluids based on water-rock interaction. For the first time, we present a conceptual geothermal fluid flow model based on geochemical data for the Songwe geothermal system in Tanzania.

Thermal springs discharge along NW-SE fracture zones in two separate areas: the central Songwe graben (Iyola, Main springs, Rambo and Kaguri) and eastern Songwe graben (Ikumbi). The discharge temperatures of springs range between 37 and 85 oC with Na-HCO3 type, and carbonate deposits surrounding most of the springs. We estimated fluid temperatures for a depth of 2.5km by applying K-Mg and Na-K-Ca (Mg correction) geothermometers, suggesting that reservoir fluids reach temperatures between 125 and 148 oC. We reconstructed reservoir fluid characteristics for that temperatures and propose oversaturated minerals (volcanics, clays, carbonates, apatites, weathered metamophics and hydrothermal minerals) as a model result of interaction between the deep fluids and certain lithologies. Comparison between the modeled oversaturated minerals with minerals in the springs (calcite, aragonite, analcime, muscovite, and smectite) suggests that Kaguri spring water is a result of interaction between deep reservoir fluids with all lithologies, passed on the way to the surface (Metamorphics, Karoo group and Red Sandstone). The fluid signature of Kaguri springs suggest an upflow zone of the geothermal system. Further, our model with oversaturated minerals shows that the thermal water from the reservoir flows laterally along the Red Sandstone layer to the eastern part of study area. It appears as Rambo springs, south of Kaguri springs, and as Main springs and Iyola to the west. The outflow zone might be continuing towards Ikumbi springs, where the fluids also interact with volcanic units. The proposed model shows that carbonate dissolution from the Red sandstone layer is the most common water-rock interaction. The carbonate is embedded in pores and fractures and occurs as matrix in the sandstone. The water-rock interaction is dominated by HCO3- and Na and seen in carbonate depositions at all springs.
description: EGUsphere
Ophrys rhodia, beschriftet mit: O. attica.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1976

description: Wissenschaftliche botanische Probe von Blütenteilen aus Rhodos, Griechenland, datiert 14.4.1976.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 57604, eingereiht als 1976-04
description: ETH-Bibliothek
Study of Subjective and Objective Quality Assessment of Mobile Cloud Gaming Videos
Creators: name: Saha, Avinab
name: Chen, Yu-Chih
name: Davis, Chase
name: Qiu, Bo
name: Wang, Xiaoming
name: Gowda, Rahul
name: Katsavounidis, Ioannis
name: Bovik, Alan C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: We present the outcomes of a recent large-scale subjective study of Mobile Cloud Gaming Video Quality Assessment (MCG-VQA) on a diverse set of gaming videos. Rapid advancements in cloud services, faster video encoding technologies, and increased access to high-speed, low-latency wireless internet have all contributed to the exponential growth of the Mobile Cloud Gaming industry. Consequently, the development of methods to assess the quality of real-time video feeds to end-users of cloud gaming platforms has become increasingly important. However, due to the lack of a large-scale public Mobile Cloud Gaming Video dataset containing a diverse set of distorted videos with corresponding subjective scores, there has been limited work on the development of MCG-VQA models. Towards accelerating progress towards these goals, we created a new dataset, named the LIVE-Meta Mobile Cloud Gaming (LIVE-Meta-MCG) video quality database, composed of 600 landscape and portrait gaming videos, on which we collected 14,400 subjective quality ratings from an in-lab subjective study. Additionally, to demonstrate the usefulness of the new resource, we benchmarked multiple state-of-the-art VQA algorithms on the database. The new database will be made publicly available on our website: \url{https://live.ece.utexas.edu/research/LIVE-Meta-Mobile-Cloud-Gaming/index.html}
description: Accepted to IEEE Transactions on Image Processing, 2023. The database will be publicly available by 1st week of July 2023
Serapias orientalis.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1978

description: Wissenschaftliche botanische Probe von Blütenteilen aus Mistegna, Lesvos, Griechenland, datiert 4.4.1978.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 57827, eingereiht als 1978-27
description: ETH-Bibliothek
Generating Visual Information for Motion Sickness Reduction Using a Computational Model Based on SVC Theory
Creators: name: Tamura, Yujiro
name: Wada, Takahiro
name: Liu, Hailong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: With the advancements in automated driving, there is concern that motion sickness will increase as non-driving-related tasks increase. Therefore, techniques to reduce motion sickness have drawn much attention. Research studies have attempted to estimate motion sickness using computational models for controlling it. Among them, a computational model for estimating motion sickness incidence (MSI) with visual information as input based on subjective vertical conflict theories was developed. In addition, some studies attempt to mitigate motion sickness by controlling visual information. In particular, it has been confirmed that motion sickness is suppressed by matching head movement and visual information. However, there has been no research on optimal visual information control that suppresses motion sickness in vehicles by utilizing mathematical models. We, therefore, propose a method for generating optimal visual information to suppress motion sickness caused from vehicle motion by utilizing a motion sickness model with vestibular and visual inputs. To confirm the effectiveness of the proposed method, we investigated changes in the motion sickness experienced by the participants according to the visual information displayed on the head-mounted display. The experimental results suggested that the proposed method mitigates the motion sickness of the participants.
Holographic MIMO Communications with Arbitrary Surface Placements: Near-Field LoS Channel Model and Capacity Limit
Creators: name: Gong, Tierui
name: Wei, Li
name: Huang, Chongwen
name: Yang, Zhijia
name: He, Jiguang
name: Debbah, Mérouane
name: Yuen, Chau
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Envisioned as one of the most promising technologies, holographic multiple-input multiple-output (H-MIMO) recently attracts notable research interests for its great potential in expanding wireless possibilities and achieving fundamental wireless limits. Empowered by the nearly continuous, large and energy-efficient surfaces with powerful electromagnetic (EM) wave control capabilities, H-MIMO opens up the opportunity for signal processing in a more fundamental EM-domain, paving the way for realizing holographic imaging level communications in supporting the extremely high spectral efficiency and energy efficiency in future networks. In this article, we try to implement a generalized EM-domain near-field channel modeling and study its capacity limit of point-to-point H-MIMO systems that equips arbitrarily placed surfaces in a line-of-sight (LoS) environment. Two effective and computational-efficient channel models are established from their integral counterpart, where one is with a sophisticated formula but showcases more accurate, and another is concise with a slight precision sacrifice. Furthermore, we unveil the capacity limit using our channel model, and derive a tight upper bound based upon an elaborately built analytical framework. Our result reveals that the capacity limit grows logarithmically with the product of transmit element area, receive element area, and the combined effects of $1/{{d}_{mn}^2}$, $1/{{d}_{mn}^4}$, and $1/{{d}_{mn}^6}$ over all transmit and receive antenna elements, where $d_{mn}$ indicates the distance between each transmit and receive elements. Numerical evaluations validate the effectiveness of our channel models, and showcase the slight disparity between the upper bound and the exact capacity, which is beneficial for predicting practical system performance.
description: double column, 17 pages, 13 figures, accepted by IEEE Journal on Selected Areas in Communications
Ophrys bertolonii.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1979

description: Wissenschaftliche botanische Probe von Blütenteilen aus Zadar, Kroatien, datiert 12.5.1979.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 579041, eingereiht als 1979-41
description: ETH-Bibliothek
MPEC 2024-L31 : 2020 KQ5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Observing avalanche dynamics with Distributed Acoustic Sensing
Creators: name: Fichtner, Andreas
name: Edme, Pascal
name: Paitz, Patrick
name: Lindner, Nadja
name: Hohl, Michael
name: Huguenin, Pierre
name: Sovilla, Betty
name: Roig-Lafon, Pere
name: Surinach, Emma
name: Walter, Fabian Thomas
Publisher: name: ETH Zurich
Year: 2021

description: Avalanche research requires comprehensive measurements of sudden and rapid snow mass movement that is hard to predict. Automatic cameras, radar and infrasound sensors provide valuable observations of avalanche structure and dynamic parameters, such as velocity. Recently, seismic sensors have also gained popularity, because they can monitor avalanche activity over larger spatial scales. Moreover, seismic signals elucidate rheological properties, which can be used to distinguish different types of avalanches and flow regimes. To date, however, seismic instrumentation in avalanche terrain is sparse. This limits the spatial resolution of avalanche details, needed to characterise flow regimes and maximise detection accuracy for avalanche warning.

As an alternative to conventional seismic instrumentation, we propose Distributed Acoustic Sensing (DAS) to measure avalanche-induced ground motion. DAS is based on fibre-optic technology, which has previously been used already for environmental monitoring, e.g., of snow avalanches. Thanks to recent technological advances, modern DAS interrogators allow us to measure dynamic strain along a fibre-optic cable with unprecedented temporal and spatial resolution. It therefore becomes possible to record seismic signals along many kilometres of fibre-optic cables, with a spatial resolution of a few metres, thereby creating large arrays of seismic receivers. We test this approach at an avalanche test site in the Valleé de la Sionne, in the Swiss Alps, using an existing 700 m long fibre-optic cable that is permanently installed underground for the purpose of data transfer of other, independent avalanche measurements.

During winter 2020/2021, we recorded numerous snow avalanches, including several which reached the valley bottom, travelling directly over the cable during runout. The DAS recordings show clear seismic signatures revealing individual flow surges and various phases/modes that may be associated with roll waves and avalanche arrest. We compare our observations to state-of-the-art radar and seismic measurements which ideally complement the DAS data.

Our initial analysis highlights the suitability of DAS-based monitoring and research for avalanches and other hazardous granular flows. Moreover, the clear detectability of avalanche signals using existing fibre-optic infrastructure of telecommunication networks opens the opportunity for unrivalled warning capabilities in Alpine environments.
description: EGUsphere
Ophrys bertolonii.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1979

description: Wissenschaftliche botanische Probe von Blütenteilen aus Rovinjsko Selo, Kroatien, datiert 10.5.1979.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 579040, eingereiht als 1979-40
description: ETH-Bibliothek
Adversarial Hamiltonian learning of quantum dots in a minimal Kitaev chain
Creators: name: Koch, Rouven
name: van Driel, David
name: Bordin, Alberto
name: Lado, Jose L.
name: Greplova, Eliska
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Determining Hamiltonian parameters from noisy experimental measurements is a key task for the control of experimental quantum systems. An experimental platform that recently emerged, and where knowledge of Hamiltonian parameters is crucial to fine-tune the system, is that of quantum dot-based Kitaev chains. In this work, we demonstrate an adversarial machine learning algorithm to determine the parameters of a quantum dot-based Kitaev chain. We train a convolutional conditional generative adversarial neural network (Conv-cGAN) with simulated differential conductance data and use the model to predict the parameters at which Majorana bound states are predicted to appear. In particular, the Conv-cGAN model facilitates a rapid, numerically efficient exploration of the phase diagram describing the transition between elastic co-tunneling and crossed Andreev reflection regimes. We verify the theoretical predictions of the model by applying it to experimentally measured conductance obtained from a minimal Kitaev chain consisting of two spin-polarized quantum dots coupled by a superconductor-semiconductor hybrid. Our model accurately predicts, with an average success probability of $97$\%, whether the measurement was taken in the elastic co-tunneling or crossed Andreev reflection-dominated regime. Our work constitutes a stepping stone towards fast, reliable parameter prediction for tuning quantum-dot systems into distinct Hamiltonian regimes. Ultimately, our results yield a strategy to support Kitaev chain tuning that is scalable to longer chains.
Polishchuk & Aholaakko 2024 Understanding the evolving requirements during the transition from proof-of-concept to medical device software validation in the EU projects
Creators: name: Polishchuk, Anna
name: Aholaakko, Teija-Kaisa
Publisher: name: Zenodo
Year: 2024
Subjects: EU SHAPES project
clinical evaluation
medical device
software
regulations
qualitative research

description: The data (Appendix 1 – 4, the participant information documents and the Informed consents document) used in the article: Polishchuk & Aholaakko 2024 Understanding the evolving requirements during the transition from proof-of-concept to medical device software in the EU projects.

The study was carried out for the EU SHAPES Horizon 2020 project Grant Number 857159.
title: Minderjährige Flüchtlinge in einer Wohngemeinschaft
Creators: name: Suhsmann, Valerie
Year: 2012

description: Diese Arbeit beschäftigt sich mit unbegleiteten minderjährigen Flüchtlingen in einer Wohngemeinschaft. Ziel dieser Arbeit ist die chronologische Darstellung der Leben dieser minderjährigen Flüchtlinge, bestehend aus ihrer Fluchtgeschichte, ihrem Aufenthalt in der Erstaufnahmestelle Ost in Traiskirchen, ihrer Betreuung in der Wohngemeinschaft Refugio bis hin zu ihrem Auszug. Das Hauptaugenmerk liegt in der Beschreibung, wie diese minderjährigen Flüchtlinge ihren Alltag als Gruppe gestalten, welche Strategien sie anwenden, um sich neu zu orientieren und wie sie das Spannungsverhältnis zwischen alter und neuer Lebenswelt meistern und überbrücken. Im theoretischen Teil wird auf die österreichische Asylpolitik eingegangen sowie der Ablauf eines Asylverfahrens erklärt. Mittels langen und eingehenden Interviews mit den Minderjährigen und ausgiebigen Gesprächen mit Experten sowie dem Betreuungspersonal konnte die außergewöhnliche Lebenswelt dieser Gruppe aufgezeigt werden. Das gemeinsame, obgleich vollkommen unterschiedliche Schicksal dieser Jugendlichen, das Verlassen der Heimat, die Flucht und das auf sich alleine gestellt sein, ist das verbindende Element, das diese Gruppe zusammenhält.
Comperia comperiana. 
Blütenanalyse, montiert auf Papier erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1983

description: Wissenschaftliche botanische Probe von Blütenteilen aus Türkei: Mugla: Eskihisar Köyü (Zwischen Milas und Yatagan, 12.5.1983, HR 183050); Antalya (Nähe Akseki, 18.5.1989, HR 189089).

In der Orchideensammlung von H. Reinhard gekennzeichnet und als HR 183050 (leg. R. Peter) und HR 189089 (leg. R. Peter) abgelegt, eingereiht unter Coeloglossum, Comperia
description: ETH-Bibliothek
Orchis morio.
Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1979

description: Wissenschaftliche botanische Probe von Blütenteilen aus Albisano, Italien, datiert 8.5.1979.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 579065, eingereiht als 1979-65
description: ETH-Bibliothek
Orchis palustris.

Blütenanalyse, montiert in einem Diarahmen, erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1989

description: Wissenschaftliche botanische Probe von Blütenteilen, ohne Ortsangabe, vermutlich aus Dipi, Lesvos, Griechenland, ohne Datum.

In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 589019, eingereiht als 1989-19.
Orstangabe Dipi, Lesvos, und Datierung 14.5.1989 sind wahrscheinlich, da von Hans Reinhard für diesen Ort und dieses Datum Fotos (Dia) überliefert sind
description: ETH-Bibliothek
Massless Dirac Perturbations of black holes in f(Q) gravity: quasinormal modes and weak deflection angle
Creators: name: Al-Badawi, Ahmad
name: Jha, Sohan Kumar
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This article considers a static and spherical black hole (BH) in f(Q) gravity. f(Q) gravity is the extension of symmetric teleparallel general relativity, where both curvature and torsion are vanishing, and gravity is described by nonmetricity. In this study, we investigate the possible implications of quasinormal modes (QNM) modified Hawking spectra, and deflection angles generated by the model. The WKB method is used to solve the equations of motion for massless Dirac perturbation fields and explore the impact of the nonmetricity parameter ($Q_{0}$). Based on the QNMs computation, we can ensure that the BH is stable against massless Dirac perturbations and as $Q_{0}$ increases the the oscillatory frequency of the mode decrease. We then discuss the weak deflection angle in the weak field limit approximation. We compute the deflection angle up to the fourth order of approximation and show how the nonmetricity parameter affects it. We find that the $Q_{0}$ parameter reduces the deflection angle.
Dactylorhiza traunsteineri.
Blütenanalyse, montiert auf Papier erstellt von Hans Reinhard
Creators: name: Reinhard, Hans R.
Publisher: name: [s.n.]
Year: 1979

description: Wissenschaftliche botanische Probe von Blütenteilen aus der Schweiz OW: Sarnersee, Hanenriet, datiert 24.6.1979.
In der Orchideensammlung von H. Reinhard gekennzeichnet mit HR 179120, eingereiht unter Dactylorhiza traunsteineri
description: ETH-Bibliothek
title: Alchemie und Magie als Bindeglied zwischen Religion und Naturphilosphie bei Paracelsus im Laybyrinthus medicorum erratium
Creators: name: Zikmund-Hochrather, Regina
Year: 2012

description: Die Arbeit behandelt die Begriffe der Alchemie und der Magie bei Paracelsus, im speziellen anhand seiner Spätschrift "Labyrinthus medicorum errantium".
The InSight HP³ Penetrator (Mole) on Mars: Soil Properties Derived From the Penetration Attempts and Related Activities
Creators: name: Spohn, Tilman
name: Hudson, Troy L.
name: Marteau, Eloïse
name: Golombek, Matthew
name: Grott, Matthias
name: Wippermann, Torben
name: Ali, Khaled S.
name: Schmelzbach, Cédric
name: Kedar, Sharon
name: Hurst, Kenneth
name: Trebi-Ollennu, Ashitey
name: Ansan, Véronique
name: Garvin, James
name: Knollenberg, Jörg
name: Müller, N.
name: Piqueux, Sylvain
name: Lichtenheldt, Roy
name: Krause, Christian
name: Fantinati, Cinzia
name: Brinkman, Nienke
name: Sollberger, David
name: Delage, Pierre
name: Vrettos, Christos
name: Reershemius, Siebo
name: Wisniewski, Lukasz
name: Grygorczuk, Jurek
name: Robertsson, Johan O.A.
name: Edme, Pascal
name: Andersson, Fredrik
name: Krömer, O.
name: Lognonné, Philippe
name: Giardini, Domenico
name: Smrekar, Suz̀anne E.
name: Banerdt, William B.
Publisher: name: ETH Zurich
Year: 2021
Subjects: record of operating a penetrator on Mars
martian soil mechanical and thermal properties
Homestead Hollow near surface structure

description: The NASA InSight Lander on Mars includes the Heat Flow and Physical Properties Package HP3 to measure the surface heat flow of the planet. The package uses temperature sensors that would have been brought to the target depth of 3--5 m by a small penetrator, nicknamed the mole. The mole requiring friction on its hull to balance remaining recoil from its hammer mechanism did not penetrate to the targeted depth. Instead, by precessing about a point midway along its hull, it carved a 7 cm deep and 5-6 cm wide pit and reached a depth of initially 31 cm. The root cause of the failure - as was determined through an extensive, almost two years long campaign - was a lack of friction in an unexpectedly thick cohesive duricrust. During the campaign -- described in detail in this paper -- the mole penetrated further aided by friction applied using the scoop at the end of the robotic Instrument Deployment Arm and by direct support by the latter. The mole finally reached a depth of 40 cm, bringing the mole body 1--2 cm below the surface. The penetration record of the mole and its thermal sensors were used to measure thermal and mechanical soil parameters such as the thermal conductivity and the penetration resistance of the duricrust and its cohesion. The hammerings of the mole were recorded by the seismometer SEIS and the signals could be used to derive a P-wave velocity and a S-wave velocity and elastic moduli representative of the topmost tens of cm of the regolith. The combined data were used to derive a model of the regolith that has an about 20 cm thick duricrust underneath a 1 cm thick unconsolidated layer of sand mixed with dust and above another 10 cm of unconsolidated sand. Underneath the latter, a layer more resistant to penetration and possibly consisting of debris from a small impact crater is inferred.
description: arXiv
Early Operative Difficulty Assessment in Laparoscopic Cholecystectomy via Snapshot-Centric Video Analysis
Creators: name: Sharma, Saurav
name: Vannucci, Maria
name: Legori, Leonardo Pestana
name: Scaglia, Mario
name: Laracca, Giovanni Guglielmo
name: Mutter, Didier
name: Alfieri, Sergio
name: Mascagni, Pietro
name: Padoy, Nicolas
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Purpose: Laparoscopic cholecystectomy (LC) operative difficulty (LCOD) is highly variable and influences outcomes. Despite extensive LC studies in surgical workflow analysis, limited efforts explore LCOD using intraoperative video data. Early recognition of LCOD could allow prompt review by expert surgeons, enhance operating room (OR) planning, and improve surgical outcomes.
 Methods: We propose the clinical task of early LCOD assessment using limited video observations. We design SurgPrOD, a deep learning model to assess LCOD by analyzing features from global and local temporal resolutions (snapshots) of the observed LC video. Also, we propose a novel snapshot-centric attention (SCA) module, acting across snapshots, to enhance LCOD prediction. We introduce the CholeScore dataset, featuring video-level LCOD labels to validate our method.
 Results: We evaluate SurgPrOD on 3 LCOD assessment scales in the CholeScore dataset. On our new metric assessing early and stable correct predictions, SurgPrOD surpasses baselines by at least 0.22 points. SurgPrOD improves over baselines by at least 9 and 5 percentage points in F1 score and top1-accuracy, respectively, demonstrating its effectiveness in correct predictions.
 Conclusion: We propose a new task for early LCOD assessment and a novel model, SurgPrOD analyzing surgical video from global and local perspectives. Our results on the CholeScore dataset establishes a new benchmark to study LCOD using intraoperative video data.
description: Accepted at IPCAI, 2025
Rapid multi-band space-based optical timing: revolutionizing accretion physics
Creators: name: Smith, Krista Lynne
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Optical timing with rapid, seconds-to-minutes cadences with high photometric precision and gap-free long baselines is necessary for an unambiguous physical picture of accretion phenomena, and is only possible from space. Exoplanet-hunting missions like Kepler and TESS have offered an outstanding new window into detailed jet and accretion physics, but have been severely hampered by incomplete calibration and systematics treatments and, most especially, a monochromatic single wide bandpass. Advances made using Kepler and TESS survey data, when considered alongside detailed, expensive multi-color experiments done from the ground, reveal the enormous potential of a space-based multi-color optical timing mission with a high energy focus.
description: 5 pages, no figures. Published in Frontiers in Astronomy and Space Sciences