| 1. |
- Menkveld, Albert J., et al.
(author)
-
Nonstandard Errors
- 2024
-
In: JOURNAL OF FINANCE. - : Wiley-Blackwell. - 0022-1082 .- 1540-6261. ; 79:3, s. 2339-2390
-
Journal article (peer-reviewed)abstract
- In statistics, samples are drawn from a population in a data-generating process (DGP). Standard errors measure the uncertainty in estimates of population parameters. In science, evidence is generated to test hypotheses in an evidence-generating process (EGP). We claim that EGP variation across researchers adds uncertainty-nonstandard errors (NSEs). We study NSEs by letting 164 teams test the same hypotheses on the same data. NSEs turn out to be sizable, but smaller for more reproducible or higher rated research. Adding peer-review stages reduces NSEs. We further find that this type of uncertainty is underestimated by participants.
|
|
| 2. |
- Valleti, K., et al.
(author)
-
Studies on phase dependent mechanical properties of dc magnetron sputtered TaN thin films : Evaluation of super hardness in orthorhombic Ta4N phase
- 2008
-
In: Journal of Physics D: Applied Physics. - : IOP Publishing. - 0022-3727 .- 1361-6463. ; 41:4
-
Journal article (peer-reviewed)abstract
- The mechanical hardness of the different phases of tantalum nitride (TaNx, x ≀ 1) thin films grown by the reactive planar dc magnetron sputtering technique at 300 °C have been evaluated. The different phases have been prepared by varying the nitrogen (N2) to argon (Ar) gas ratio R in the range 0.04-0.30. The phases present in each sample and their volume fractions are obtained from x-ray diffraction and Ta 4f7/2 binding energy x-ray photoelectron spectra, respectively. The grown TaN thin films are found to contain mainly cubic-TaN0.1, orthorhombic-Ta 4N, orthorhombic-Ta6N2.5, hexagonal-TaN 0.8 and cubic-TaN phases. The hardness corresponding to each phase has been derived from the experimental hardness values using ’rule of mixtures’. A super hardness of ∌61.9 GPa is observed in orthorhombic Ta4N phase. With increase in R, a decrease in the surface oxidation of TaN has been observed. The reduced surface oxidation is attributed to the formation of stoichiometric TaN thin films. The surface morphology is found to change considerably with increase in R. © 2008 IOP Publishing Ltd.
|
|
| 3. |
- Ayyala, S, et al.
(author)
-
Effect of corrosion inhibitors on grinding and flotation of a lead-zinc ore
- 1993
-
In: Minerals Engineering. - 0892-6875 .- 1872-9444. ; 6, s. 929-935
-
Journal article (peer-reviewed)abstract
- Grinding and flotation experiments on a Pb-Zn ore were carried out to evaluate : 1) wear of the grinding media both in the presence and absence of an inhibitor and 2) effect of the inhibitor on the flotation of Pb-Zn minerals. The percentage reduction in the wear of the grinding media was observed to be between 25-36%, depending on the type of the inhibitor and its critical concentration. The inhibitors used in the investigation were sodium sulphite, sodium nitrite, sodium chromate and sodium silicate. The results indicate that a specific corrosion inhibitor, for example sodium sulphite, may give better recoveries and grades in flotation but is not as efficient as sodium chromate in inhibiting the wear of the grinding media. Pulp solutions (after grinding) analysed for metal ion concentrations showed low Fe. Iron released into the solution as a result of corrosion reactions subsequently forms insoluble hydroxy complexes and may coat the mineral surfaces. Such hydrophilic coatings may adversely affect the floatabilities of minerals. The particle size analysis of the ground product has been carried out and the results are discussed.
|
|
| 4. |
- Kristan, Matej, et al.
(author)
-
The Sixth Visual Object Tracking VOT2018 Challenge Results
- 2019
-
In: Computer Vision – ECCV 2018 Workshops. - Cham : Springer Publishing Company. - 9783030110086 - 9783030110093 ; , s. 3-53
-
Conference paper (peer-reviewed)abstract
- The Visual Object Tracking challenge VOT2018 is the sixth annual tracker benchmarking activity organized by the VOT initiative. Results of over eighty trackers are presented; many are state-of-the-art trackers published at major computer vision conferences or in journals in the recent years. The evaluation included the standard VOT and other popular methodologies for short-term tracking analysis and a “real-time” experiment simulating a situation where a tracker processes images as if provided by a continuously running sensor. A long-term tracking subchallenge has been introduced to the set of standard VOT sub-challenges. The new subchallenge focuses on long-term tracking properties, namely coping with target disappearance and reappearance. A new dataset has been compiled and a performance evaluation methodology that focuses on long-term tracking capabilities has been adopted. The VOT toolkit has been updated to support both standard short-term and the new long-term tracking subchallenges. Performance of the tested trackers typically by far exceeds standard baselines. The source code for most of the trackers is publicly available from the VOT page. The dataset, the evaluation kit and the results are publicly available at the challenge website (http://votchallenge.net).
|
|
| 5. |
- Kristan, Matej, et al.
(author)
-
The Visual Object Tracking VOT2016 Challenge Results
- 2016
-
In: COMPUTER VISION - ECCV 2016 WORKSHOPS, PT II. - Cham : SPRINGER INT PUBLISHING AG. - 9783319488813 - 9783319488806 ; , s. 777-823
-
Conference paper (peer-reviewed)abstract
- The Visual Object Tracking challenge VOT2016 aims at comparing short-term single-object visual trackers that do not apply pre-learned models of object appearance. Results of 70 trackers are presented, with a large number of trackers being published at major computer vision conferences and journals in the recent years. The number of tested state-of-the-art trackers makes the VOT 2016 the largest and most challenging benchmark on short-term tracking to date. For each participating tracker, a short description is provided in the Appendix. The VOT2016 goes beyond its predecessors by (i) introducing a new semi-automatic ground truth bounding box annotation methodology and (ii) extending the evaluation system with the no-reset experiment.
|
|
| 6. |
- Kristan, Matej, et al.
(author)
-
The Visual Object Tracking VOT2017 challenge results
- 2017
-
In: 2017 IEEE INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOPS (ICCVW 2017). - : IEEE. - 9781538610343 ; , s. 1949-1972
-
Conference paper (peer-reviewed)abstract
- The Visual Object Tracking challenge VOT2017 is the fifth annual tracker benchmarking activity organized by the VOT initiative. Results of 51 trackers are presented; many are state-of-the-art published at major computer vision conferences or journals in recent years. The evaluation included the standard VOT and other popular methodologies and a new "real-time" experiment simulating a situation where a tracker processes images as if provided by a continuously running sensor. Performance of the tested trackers typically by far exceeds standard baselines. The source code for most of the trackers is publicly available from the VOT page. The VOT2017 goes beyond its predecessors by (i) improving the VOT public dataset and introducing a separate VOT2017 sequestered dataset, (ii) introducing a realtime tracking experiment and (iii) releasing a redesigned toolkit that supports complex experiments. The dataset, the evaluation kit and the results are publicly available at the challenge website(1).
|
|
| 7. |
- Piletska, EV, et al.
(author)
-
A new reactive polymer suitable for covalent immobilisation and monitoring of primary amines
- 2001
-
In: Polymer. - : Elsevier Science B.V., Amsterdam.. - 0032-3861 .- 1873-2291. ; 42:8, s. 3603-3608
-
Journal article (peer-reviewed)abstract
- A new polymer capable of reacting with primary amines was synthesised from allyl mercaptan, o-phthalic dialdehyde and ethylene glycol dimethacrylate by radical polymerisation. Reactive hemithioacetal formed by allyl mercaptan and dialdehyde can bind primary amino groups without additional pre-activation forming the fluorescent isoindole complex. It gives a great opportunity to monitor binding and perform loading of the amino compounds onto the reactive surface. The reactive polymer is found to be an effective matrix for immobilisation of the proteins and other amino-containing compounds in affinity chromatography and could be used for their detection in solution. (C) 2001 Elsevier Science Ltd. All rights reserved.
|
|
| 8. |
- Subrahmanyam, A., et al.
(author)
-
Effect of arc suppression on the physical properties of low temperature dc magnetron sputtered tantalum thin films
- 2007
-
In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. - : American Vacuum Society. - 0734-2101 .- 1520-8559. ; 25:2, s. 378-382
-
Journal article (peer-reviewed)abstract
- Arcing is a common phenomenon in the sputtering process. Arcs and glow discharges emit electrons which may influence the physical properties of films. This article reports the properties of tantalum (Ta) thin films prepared by continuous dc magnetron sputtering in normal and arc-suppression modes. The substrate temperature was varied in the range of 300-673 K. The tantalum films were ∌1.8 Όm thick and have good adherence to 316 stainless steel and single-crystal silicon substrates. The phase of the Ta thin film determines the electrical and tribological properties. The films deposited at 300 K using both methods were crystallized in a tetragonal structure (Β phase) with a smooth surface (grain size of ∌10 nm) and exhibited an electrical resistivity of ∌194 Ό cm and a hardness of ∌20 GPa. When the substrate temperature was 473 K and higher, the arc-suppression mode appears to influence the films to crystallize in the α phase with a grain size of ∌40 nm, whereas the normal power mode gave mixed phases Β and α beyond 473 K, the arc-suppression mode yields larger grain sizes in the Ta thin films and the hardness decreases. These changes in the physical properties in arc-suppression mode are attributed to either the change in plasma characteristics or the energetic particle bombardment onto the substrate, or both. © 2007 American Vacuum Society.
|
|
| 9. |
- Subrahmanyam, S, et al.
(author)
-
Application of natural receptors in sensors and assays
- 2002
-
In: Analytical Chemistry. - : ACS American Chemical Society. - 0003-2700 .- 1520-6882. ; 74:16, s. 3942-3951
-
Journal article (peer-reviewed)abstract
- Biosensors are analytical devices that use a biological or biologically derived material immobilized at a physicochemical transducer to measure one or more analytes. Although there are a large number of reviews on biosensors in general, there has been little systematic information. presented on the application of natural receptors in sensor technology. This perspective discusses broadly the fundamental properties of natural receptors; which make them an attractive option for use as biorecognition elements in. sensor technology. It analyses the current situation by reference to, typical examples, such as the application of nicotinic acetylcholine receptor and G protein-linked receptors in affinity sensors and analyses the problems that need to be resolved prior to any commercialization of such devices.
|
|
| 10. |
- Subrahmanyam, S, et al.
(author)
-
Bite-and-switch approach to creatine recognition by use of molecularly imprinted polymers
- 2000
-
In: Advanced Materials. - : John Wiley andamp;amp; Sons, Ltd. - 0935-9648 .- 1521-4095. ; 12:10, s. 722-
-
Journal article (peer-reviewed)abstract
- The detection of creatine is important in the analysis of athletes and body builders. Here is reported the preparation of a synthetic polymer using imprinting polymerization, which leaves the polymer with receptor-mimicking recognition sites that are specific for creatine. Molecular recognition results in a fluorescent complex (see Figure) and thus represents a bite-and-switch" mechanism.
|
|
