Montanuniversität
Organisational unit: University
Publications / Theses
- 2021
- Published
Investigation of particle-specific characteristics of non-hazardous, fine shredded mixed waste
Weißenbach, T. & Sarc, R., 1 Jan 2021, In: Waste management. 119, 119, p. 162 - 171 10 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Multi-method characterization approach to facilitate a strategy to design mechanical and electrical properties of sintered copper
Wijaya, A., Eichinger, B., Chamasemani, F. F., Sartory, B., Hammer, R., Maier-Kiener, V., Kiener, D., Mischitz, M. & Brunner, R., 1 Jan 2021, In: Materials and Design. 197, 109188.Research output: Contribution to journal › Article › Research › peer-review
- Published
Sucker Rod Antibuckling System: Development and Field Application
Langbauer, C., Fruhwirth, R. & Volker, L. J., 1 Jan 2021, In: SPE production & operations. 2021, doi.org/10.2118/205352-PAResearch output: Contribution to journal › Article › Research › peer-review
- Published
Alternative Transfer Chute System
Prenner, M., Jan 2021, In: Mining Report Glückauf. 157.2021, 1, p. 78-86 9 p.Research output: Contribution to journal › Article › Research
- Published
Effect of Pt nanoparticle decoration on the H2 storage performance of plasma-derived nanoporous graphene
Kostoglou, N., Liao, C.-W., Wang, C.-Y., Kondo, J. N., Tampaxis, C., Steriotis, T., Giannakopoulos, K., Kontos, A. G., Hinder, S. J., Baker, M., Bousser, E., Matthews, A., Rebholz, C. & Mitterer, C., Jan 2021, In: Carbon. 171, 171, p. 294-305 12 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Impact of microstructural properties on the crack threshold of aluminium castings
Oberreiter, M., Aigner, R., Pomberger, S., Leitner, M. & Stoschka, M., Jan 2021, In: Engineering Fracture Mechanics. 241, 10 p., 107431.Research output: Contribution to journal › Article › Research › peer-review
- Published
Lithium-Ion Batteries as Ignition Sources in Waste Treatment Processes—A Semi-Quantitate Risk Analysis and Assessment of Battery-Caused Waste Fires
Nigl, T., Baldauf, M., Hohenberger, M. & Pomberger, R., Jan 2021, In: Processes : open access journal. 9, 1, p. 1-12 12 p., 49.Research output: Contribution to journal › Article › Research › peer-review
- Published
Material extrusion additively manufactured alumina monolithic structures to improve the efficiency of plasma-catalytic oxidation of toluene
Li, T., Gonzalez-Gutierrez, J., Raguz, I., Holzer, C., Li, M., Cheng, P., Kitzmantel, M., Shi, L. & Huang, L., Jan 2021, In: Additive Manufacturing. 37, January 2021, 9 p., 101700.Research output: Contribution to journal › Article › Research › peer-review
- Published
MINERALOGICAL, BIB-SEM AND PETROPHYSICAL DATA IN SEAL ROCK ANALYSIS: A CASE STUDY FROM THE VIENNA BASIN, AUSTRIA
Misch, D., Siedl, W., Drews, M., Liu, B., Klaver, J., Pupp, M. & Sachsenhofer, R., Jan 2021, In: Journal of Petroleum Geology. 44, 1, p. 25-45 22 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Simulation of dynamic and meta-dynamic recrystallization behavior of forged Alloy 718 parts using a multi-class grain size model
Gruber, C., Raninger, P., Stanojevic, A., Godor, F., Rath, M., Kozeschnik, E. & Stockinger, M., Jan 2021, In: Materials. 14, 1, p. 1-15 15 p., 111.Research output: Contribution to journal › Article › Research › peer-review
- Published
The effect of grain size on bubble formation and evolution in helium-irradiated Cu-Fe-Ag
Wurmshuber, M., Frazer, D., Balooch, M., Issa, I., Bachmaier, A., Hosemann, P. & Kiener, D., Jan 2021, In: Materials characterization. 171.2021, January, 110822.Research output: Contribution to journal › Article › Research › peer-review
- Published
Thermomechanical and structural characterization of polybutadiene/poly(ethylene oxide)/CNT stretchable electrospun fibrous membranes
Gürbüz, R., Sarac, B., Soprunyuk, V., Yüce, E., Eckert, J., Ozcan, A. & Sarac, A. S., Jan 2021, In: Polymers for Advanced Technologies. 32, 1, p. 248-261 14 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Über theoretische und reale Recyclingfähigkeit
Pomberger, R., Jan 2021, In: Österreichische Wasser- und Abfallwirtschaft : ÖWAW . p. 24 - 35 10 p.Research output: Contribution to journal › Article › Research
- Published
Abgrenzung und Überlappung des europäischen Chemikalien- und Abfallrechts und Auswirkungen auf die Abfallwirtschaft
Breiner, D., 2021Research output: Thesis › Master's Thesis
- Published
A contribution of Middle – Late Jurassic Mélanges in the Northern Calcareous Alps (Raucherschober/Schafkogel) and the Inner Western Carpathians (Jaklovce) to the reconstruction of the Triassic – Jurassic passive and active Neo-Tethys distal continental margin
Drvoderic, S., 2021Research output: Thesis › Master's Thesis
- Published
ACTIVE RTM PROCESS MANAGEMENT BASED ON PHENOMENOLOGICAL MODELS
Fauster, E., Hergan, P. & Schledjewski, R., 2021.Research output: Contribution to conference › Paper › peer-review
- Published
Additive manufacturing of highly textured alumina ceramics
Hofer, A.-K., Kraleva, I. & Bermejo, R., 2021, In: Open ceramics. 100085.Research output: Contribution to journal › Article › Research › peer-review
- Published
Additive manufacturing of high-strength alumina through a multi-material approach
Schlacher, J. C., Hofer, A.-K., Geier, S., Kraleva, I. R., Papsik, R., Schwentenwein, M. & Bermejo, R., 2021, In: Open ceramics. 5, 100082.Research output: Contribution to journal › Article › Research › peer-review
- Published
Additive manufacturing of magnesium alloy using uniform droplet spraying: modeling of microstructure evolution
Jaffar, S. M., Kostoglou, N., Fukuda, H., Rebholz, C., Ando, T., Liao, Y. & Doumanidis, C. C., 2021, In: MRS Advances. 2021, p. 1-13Research output: Contribution to journal › Article › Research › peer-review
- Published
Adsorption of Cholesterol by Carbon Nanotubes
Vakhrushev, A. (Illustrator), 2021Research output: Book/Report › Book › Research
- Published
Advanced Approach of SRP Downhole Dynamometer Evaluation - Proof of Concept
Gattuso, E., 2021Research output: Thesis › Master's Thesis
- Published
Advanced in situ electrochemical nanoindentation testing for understanding hydrogen-materials interactions
Ebner, A., Clemens, H., Pippan, R. & Maier-Kiener, V., 2021.Research output: Contribution to conference › Poster › Research
- Published
Advances of materials for ion-selective membranes for extraction of Lithium ions out of saline water
Raggam, S., 2021Research output: Thesis › Master's Thesis
- Published
A lower bound for Cusick’s conjecture on the digits of n + t
Spiegelhofer, L., 2021, In: Mathematical proceedings of the Cambridge Philosophical Society. 2021, 23 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Alteration-induced volcano instability at La Soufrière de Guadeloupe (Eastern Caribbean)
Heap, M. J., Baumann, T., Rosas-Carbajal, M., Komorowski, J.-C., Gilg, H. A., Villeneuve, M., Moretti, R., Baud, P., Carbillet, L., Harnett, C. & Reuschlé, T., 2021, In: Journal of geophysical research.Research output: Contribution to journal › Article › Research › peer-review
- Published
A multiscale structural investigation of metallic glass composites with advanced electron microscopic methods
Fellner, S., 2021Research output: Thesis › Master's Thesis
- Published
An additively manufactured titanium alloy in the focus of metallography
Fleißner-Rieger, C., Pogrielz, T., Obersteiner, D., Pfeifer, T., Clemens, H. & Mayer, S., 2021, In: Practical metallography = Praktische Metallographie. 58.2021, 1, p. 4-31 28 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Analysis of Gas Trading - Examination of Gas Sales Agreements and Adaption of a ComFin Software Module
Weninger, F., 2021Research output: Thesis › Master's Thesis
- Published
Analysis of the strain information from nanodiffraction data
Schretter, L., 2021Research output: Thesis › Master's Thesis
- Published
Analysis of waste energy potential at compressor station and increase of its use
Mullayanova, A., 2021Research output: Thesis › Master's Thesis
- Published
An atomistic view on Oxygen, antisites and vacancies in the γ-TiAl phase
Razumovskiy, V. I., Ecker, W., Wimler, D., Fischer, F.-D., Appel, F., Mayer, S. & Clemens, H., 2021, In: Computational materials science. 2021, 197, p. 1-8Research output: Contribution to journal › Article › Research › peer-review
- Published
- Published
A new heuristic and an exact approach for a production planning problem
Auer, P., Dósa, G., Dulai, T., Fügenschuh, A., Näser, P., Ortner, R. & Werner-Starkne, A., 2021, In: Central European Journal of Operations Research. 29.2021, September, p. 1079-1113 35 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Anlagenkonzeption für die Scholz Rohstoffhandel GmbH am Standort Laxenburg
Bauernfeind, F., 2021Research output: Thesis › Master's Thesis
- Published
A Positioning System for Mobile Equipment based on Ultra Wideband Radio
Plessing, L., 2021Research output: Thesis › Master's Thesis
- Published
A simple method to model buckling slope instability using continuum numerical models
Ridl, R., Bell, D., Villeneuve, M. & MacFarlane, D., 2021, Rocscience International Conference.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
- Published
Aufbau eines Versuchsstandes zur Entfernung von Quecksilber aus Erdöl
Rokita, M., 2021Research output: Thesis › Master's Thesis
- Published
Ausbildung und Training am ZAB
Galler, R., 2021, In: Stein & Kies : Wissenswertes zur Gewinnung mineralischer Rohstoffe in Österreich. Jan-Feb 2021, 170, p. 11 1 p.Research output: Contribution to journal › Article › Research
- Published
Auswirkungen intergranularer Oxidation auf die Oberflächenrissbildung beim Stranggießen von Stahl
Gaiser, G., 2021Research output: Thesis › Master's Thesis
- Published
Behavior of high-temperature corrosion resistant alloys in HCl and H2S containing atmospheres
Nimmervoll, M., Mori, G. K., Hönig, S. & Haubner, R., 2021.Research output: Contribution to conference › Poster › Research › peer-review
- Published
Bending behavior of zinc-coated hot stamping steels
Hofer, C., Stadler, M., Kurz, T., Maier-Kiener, V., Mayerhofer, A., Hebesberger, T. & Schnitzer, R., 2021, In: Steel research international. 2021, p. 1-9Research output: Contribution to journal › Article › Research › peer-review
- Published
Bewertung des Einsatzes des Wertstoffscanners bei der Sammlung von gemischtem Siedlungsabfall
Pum, R., 2021Research output: Thesis › Master's Thesis
- Published
Buckling Analysis of an Uncemented Tieback During Production, Injection and Pressure Tests
Ulrich, B., 2021Research output: Thesis › Master's Thesis
- Published
Bulk inclusion micro-zircon U–Pb geochronology: A new tool to date low-grade metamorphism
Hollinetz, M. S., Schneider, D., McFarlane, C. R. M., Huet, B., Rantitsch, G. & Grasemann, B., 2021, In: Journal of metamorphic geology. 20 p.Research output: Contribution to journal › Article › Research › peer-review
- Published
Burial, accretion, and exhumation of the Oman-UAE metamorphic sole
Ambrose, T., Searle, M., Waters, D., Gopon, P. & Forshaw, J., 2021, In: Tectonics. 40Research output: Contribution to journal › Article › Research › peer-review
- Published
Business Model Innovation in the Fields of Industrial Goods: Designing a Framework
Hechtl, B., 2021Research output: Thesis › Master's Thesis
- Published
CALPHAD assessment of the Ti-W system including experimental and ab-initio data
Spitaler, T. & Romaner, L., 2021.Research output: Contribution to conference › Poster › Research
- Published
Cathode spot behavior in nitrogen and oxygen gaseous atmospheres and concomitant cathode surface modifications
Golizadeh Najafabadi, M., Mendez Martin, F., Kolozsvári, S., Anders, A. & Franz, R., 2021, In: Surface & coatings technology. 2021, 421, p. 1-7Research output: Contribution to journal › Article › Research › peer-review
- Published
Cathodic arc evaporated high-entropy alloy-based metallic and nitride coatings
Wasenbelz, F., 2021Research output: Thesis › Master's Thesis
- Published
Challenges in production and distribution of low-tonnage LNG
Mikriukov, P., 2021Research output: Thesis › Master's Thesis
- Published
Chloridinduzierte Spannungsrisskorrosion neuer CrNiMoMnN-Austenite
Stiedl, G., 2021Research output: Thesis › Master's Thesis
- Accepted/In press
Combined damaged elasticity and creep modeling of ceramics with wedge splitting tests
Samadi, S., Jin, S. & Harmuth, H., 2021, (Accepted/In press) In: Ceramics International.Research output: Contribution to journal › Article › Research › peer-review
- Published
Comparison of different comminution processes to support the automated sorting of refractory recycling materials
Konkina, D., 2021Research output: Thesis › Master's Thesis
- Published
Comparison of evaluation methods regarding the tooth root stress for spur and helical gears in pulsator tests
Fiedler, F., 2021Research output: Thesis › Master's Thesis
- Published
Conceptualization of a data integration and storage framework to enable predictive analytics and application of data analytical algorithms in the manufacturing industry
Kernbauer, S. P., 2021Research output: Thesis › Master's Thesis
- Published
Conditions of the Formation Gas Deposits in the Epart of the Dnieper-Donets Basin: Integration of Basin Modeling Data with Consequences of Strike-Slip Faulting Effects
Privalov, V., Loktyev, V., Misch, D., Sachsenhofer, R., Karpenko, I., Panova, O. & Formation, O., 2021, Society of Petroleum Engineers - SPE Eastern Europe Subsurface Conference, EESC 2021. The Society of Petroleum Engineers, (Society of Petroleum Engineers - SPE Eastern Europe Subsurface Conference, EESC 2021).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
- Published
Contact Damage of Alumina-Based Layered Ceramics with Tailored Microstructure
Jabr, A., 2021Research output: Thesis › Master's Thesis
- Published
Copper and its effects on microstructure and correlated tensile properties of super duplex stainless steels
Ressel, G., Gsellmann, M., Brandl, D., Landefeld, A., Keplinger, A., Zhang, Z., Maier-Kiener, V. & Schnitzer, R., 2021, In: Materials science and engineering: A, Structural materials: properties, microstructure and processing. 2021, 821, p. 1-11Research output: Contribution to journal › Article › Research › peer-review
- Published
Correlation of process conditions, microstructure and mechanical properties of magnetron sputtered equiatomic CrMnFeNiCo alloys
Baumegger, W., 2021Research output: Thesis › Master's Thesis
- Published
Crude oil wax remediation using enhanced chemical formulations
Al-Gaadabi, M. Q. A., 2021Research output: Thesis › Master's Thesis
- Published
Damage initiation in hard-coated hard metal substrates under normal and tangential loads at elevated temperature
Walch, L., 2021Research output: Thesis › Master's Thesis
- Published
Darstellung ökologischer Aspekte der Aufbereitung wichtiger Reststoffgruppen und deren Relevanz für den Klimaschutz mittels Ökobilanzierung
Groiß, A., 2021Research output: Thesis › Master's Thesis
- Published
Das Fast Tunnel Modelling Tool für Untertagebauwerke
Hofer, P., Strauß, C., Eder, J., Hager, L., Wenighofer, R., Nöger, M. & Fuchs, S., 2021. 6 p.Research output: Contribution to conference › Paper › peer-review
- Published
Das Kieswerk Sulzau - Bestandsaufnahme und Planung des Abbaues bis zum Lagerstättenende
Haigermoser, P., 2021Research output: Thesis › Master's Thesis
- Published
Data-Driven Model for Measuring Hydraulic Fracturing Efficiency by Utilizing the Real-time Treatment Data.
Zhukova, K., 2021Research output: Thesis › Master's Thesis
- Published
Defect monitoring and control for thermoplastic Automated Tape Layup
Yadav, N. & Schledjewski, R., 2021.Research output: Contribution to conference › Poster › Research › peer-review
- Published
Degradation mechanisms of solid oxide cell air electrodes: The role of cation segregation and contaminants
Bucher, E., 2021, 45th International Conference and Expo on Advanced Ceramics and Composites (ICACC2021).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
- Published
Der Einfluss von Industrie 4.0 Erfolgsfaktoren auf die Unternehmensperformance
Mühlberger, M., 2021Research output: Thesis › Master's Thesis
- Published
Design of a cryogenic pipeline for natural gas transportation
Dudnikov, N., 2021Research output: Thesis › Master's Thesis
- Published
Design of a Heat Exchanger for the Pump Test Facility
Hasni, M., 2021Research output: Thesis › Master's Thesis
- Published
Design of Pressure Control for Optimal Damping in Individual Metering Systems
Rath, G., Zaev, E., Stojanoski, G. & Babunski, D., 2021.Research output: Contribution to conference › Paper › peer-review
- Published
Detection of subsurface cracks using inductive thermography
Oswald-Tranta, B., Tuschl, C. & Hackl, A., 2021.Research output: Contribution to conference › Paper › peer-review
- Published
Detection of subsurface cracks using inductive thermography
Oswald-Tranta, B., Tuschl, C. & Hackl, A., 2021, In: Proceedings of SPIE. 11743Research output: Contribution to journal › Article › Research › peer-review
- Published
Developing a refractory test method for Platinum-Group-Metals Smelters
Tichy, S., 2021Research output: Thesis › Master's Thesis
- Published
Development and Hardware-in-the-Loop Simulation of an Air Purifier Automativ Control System
Zaev, E., Babunski, D., Jovanovic, D., Rath, G. & Payr, M., 2021, p. 445. 448 p.Research output: Contribution to conference › Paper › peer-review
- Published
Development of a multi-layer project management framework for SME's using PHP and SQL
Schmölzer, H.-J., 2021Research output: Thesis › Master's Thesis
- Published
Development of an Excavation Concept for Lunar Regolith
Höber, D., 2021Research output: Thesis › Master's Thesis
- Published
Die biologische Methanisierung von Altspeisefett
Callegari, M., 2021Research output: Thesis › Master's Thesis
- Published
Die Circular Economy an der Montanuniversität im Zeichen des European Green Deal
Mazak-Huemer, A. & Moser, P., 2021, Reset Europe : Impulse für die Zukunft. Hösele, H. & Wieser, L. (eds.). p. 190-194 5 p. (Edition Geist& Gegenwart).Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research
- Published
Differentiation und Lagerstättenpotential ausgewählter Pegmatite in Defereggen (Osttirol)
Horvat, C., 2021Research output: Thesis › Master's Thesis
- Published
Digitalisierung in der Auftragsabwicklung am Beispiel eines Energiehandelsunternehmens mit eigenem Fuhrpark
Hatzl, S., 2021Research output: Thesis › Master's Thesis
- Published
Digitalisierung in der Gießereitechnik: Teil 1: Herausforderungen und Chancen
Bührig-Polaczek, A., Rudack, M., Salentin, F. G., Sandt, M., Hartmann, D., Brait, M., Koppensteiner, E., Schindelbacher, G. & Schumacher, P., 2021, In: Gießerei. p. 37-43Research output: Contribution to journal › Article › Research
- Accepted/In press
Directional Solidification of AlSi7Fe1 Alloy Under Forced Flow Conditions: Effect of Intermetallic Phase Precipitation and Dendrite Coarsening
Zhang, H., Wu, M., Rodrigues, C. M. G., Ludwig, A. & Kharicha, A., 2021, (Accepted/In press) In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science.Research output: Contribution to journal › Article › Research › peer-review
- Published
Dokumentation und Bewertung ausgewählter Schnittzonen im Salinar des Standortes Hattorf/Wintershall (Werk Werra)
Reiff, M., 2021Research output: Thesis › Master's Thesis
- Published
Downhole Dynamometer Sensor Data Evaluation
Frauscher, G. I., 2021Research output: Thesis › Master's Thesis
- Published
Economic and ecological aspects of electro- mobility in commercial fleet operations
Wiszniewski, L., 2021Research output: Thesis › Master's Thesis
- E-pub ahead of print
Effect of binder system on the thermo-physical properties of 3D-printed zirconia ceramics
Hofer, A.-K., Rabitsch, J., Jutrzenka-Trzebiatowska, D., Hofstetter, M., Gavalda-Velasco, I., Schlacher, J. C., Schwentenwein, M. & Bermejo, R., 2021, (E-pub ahead of print) In: International journal of applied ceramic technology.Research output: Contribution to journal › Article › Research › peer-review
- Published
Effect of environmental relative humidity on hydrogen-induced mechanical degradation in an Al–Zn–Mg–Cu alloy
Safyari, M., Hojo, T. & Moshtaghi, M., 2021, In: Vacuum.Research output: Contribution to journal › Article › Research › peer-review
- Published
Effect of shape and particle size distribution of inert surface particles on the oxygen exchange kinetics of oxide ceramics
Preis, W., 2021, In: The journal of physics and chemistry of solids : JPCS. 148, 8 p., 109735.Research output: Contribution to journal › Article › Research › peer-review
- Published
Effect of solution treatment temperature on grain boundary composition and environmental hydrogen embrittlement of an Al–Zn–Mg–Cu alloy
Moshtaghi, M., Safyari, M. & Hojo, T., 2021, In: Vacuum.Research output: Contribution to journal › Article › Research › peer-review
- Published
Effects of acid leaching treatment of soda lime silicate glass on crack initiation and fracture
Sheth, N., Greenly, C., Bermejo, R., Mauro, J. C., Pantano, C. G. & Kim, S. H., 2021, In: Journal of the American Ceramic Society. 104, p. 4550-4558Research output: Contribution to journal › Article › Research › peer-review
- Published
Effects of metallic Y and Ti addition on the dispersion and solubility behaviour of added Y2O3 in an ODS FeCrMnNiCo HEA during mechanical alloying.
Gruber, P., 2021Research output: Thesis › Master's Thesis
- Published
Effects of tungsten alloying and fluorination on the oxidation behavior of intermetallic titanium aluminides for aerospace applications
Donchev, A., Mengis, L., Couret, A., Mayer, S., Clemens, H. & Galetz, M., 2021, In: Intermetallics. 2021, 139, p. 1-14Research output: Contribution to journal › Article › Research › peer-review
- Published
Ein Datenmodell zur digitalen Dokumentation des Bauprozesses im Tunnelbau
Zach, K. C., 2021Research output: Thesis › Master's Thesis
- Published
Einfluss der Clusterbildung auf die Aushärtung und das Umformverhalten von verschiedenen Aluminiumlegierungen
Aster, P., 2021Research output: Thesis › Master's Thesis
- Published
Einfluss der Gasatmosphäre auf die Hydrothermale Verflüssigung biogener Reststoffe
Graf, E., 2021Research output: Thesis › Master's Thesis
- Published
Einfluss der Mobilitäten der Tripelpunkte und Korngrenzen auf die Kinetik des Kornwachstums
Gschöpf, B., 2021Research output: Thesis › Master's Thesis
- Published
Einfluss von Tantal auf die Kornfeinung einer Al10SiMg Legierung
Pammer, M., LI, J. & Schumacher, P., 2021, In: Gießerei-Rundschau. 68, 02/2021, p. 15-20Research output: Contribution to journal › Article › Research
- Published
Einfluss von unterschiedlichen Schmelzrippen-Geometrien auf die Dichtheit von Kunststoffumspritzungen von Steckverbindern
Preissegger, F., 2021Research output: Thesis › Master's Thesis
- Published
Employement effects of different municipal waste treatment systems based on data from Austria
Pomberger, R., Altendorfer, M. & Gelbmann, U., 2021, In: Detritus. p. 1 - 16 17 p.Research output: Contribution to journal › Article › Research › peer-review