Journal articles: 'Mechanical Engg in Gen'

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Bradley, David. "Air gen." Materials Today 35 (May 2020): 3–4. http://dx.doi.org/10.1016/j.mattod.2020.03.014.

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Bensel, Tobias, Jens J. Bock, Anne Kebernik, Christin Arnold, Sonia Mansour, and Arne F. Boeckler. "Effect of Disinfectants on Mechanical Properties of Orthodontic Acrylics." International Journal of Biomaterials 2019 (April 24, 2019): 1–10. http://dx.doi.org/10.1155/2019/1096208.

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Objective. Infection control protocols in dentistry dictate that orthodontic acrylics have to be disinfected. No specific products for orthodontic acrylics are available. The objective of this study was to investigate the influence of chemical disinfectants on mechanical properties of orthodontic acrylics.Materials and Methods. 260 test specimens of two cold-curing orthodontic acrylics were manufactured. Three chemical disinfecting agents were tested: Impresept, D050 Instru-Gen, and Stammopur DR. Test specimens were stored in distilled water and divided into test groups. E-Modulus, flexural strength, macro hardness, micro hardness, average roughness, and colour change were measured.Results. Disinfection agents showed no significant influence on E-modulus. Values ranged from 1783.80 ± 163.80 MPa (Forestacryl colourless) to 2474.00 ± 135.00 MPa (Orthocryl green) after storage in distilled water. Disinfection agents performed no significant influence on flexural strength. Values ranged from 18.64±1.59 N/mm2(Forestacryl colourless) to 25.64 ± 1.43 N/mm2(Orthocryl green) after storage in distilled water. Orthocryl colourless showed a reduction of the macro hardness after disinfection (Stammopur DR (p≤0.001), D050 Instru-Gen (p≤0.037)). Disinfection of Orthocryl green with D050 Instru-Gen (p<0.001) and Forestacryl colourless with Impresept (p≤0.001) led to a reduction of macro hardness. Micro hardness of Orthocryl colourless altered significantly after disinfection with D050 Instru-Gen (p≤0.001). Micro hardness of Forestacryl colourless increased (Impresept (p≤0.039)) and decreased (Stammopur DR (p≤0.006) Instru-Gen (p≤0.001)) after disinfection. Average roughness did not change significantly (Orthocryl colourless). Forestacryl colourless performed a significant change after disinfection with Stammopur DR (p≤0.05). This is also true for the disinfection of Orthocryl green and Forestacryl pink with Instru-Gen (p≤0.05). Disinfection performed no significant influence on colour change. ΔE-values were in a range of 1 to 2.Conclusions. Some orthodontic acrylics disinfection caused significant changes of determined parameters. Changes were specific for the applied disinfectant and tested orthodontic acrylic. Further studies should verify the impact of long-term disinfection intervals. Thus, from manufacturers of orthodontic acrylics recommendations for appropriate disinfectants would be desirable.

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Bradley, David. "Gen F Scientists." Materials Today 13, no. 1-2 (January 2010): 54–55. http://dx.doi.org/10.1016/s1369-7021(10)70017-1.

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Reinwald, Susan, Loretta P. Mayer, Patricia B. Hoyer, Charles H. Turner, Stephen Barnes, and Connie M. Weaver. "A Longitudinal Study of the Effect of Genistein on Bone in Two Different Murine Models of Diminished Estrogen-Producing Capacity." Journal of Osteoporosis 2010 (2010): 1–14. http://dx.doi.org/10.4061/2010/145170.

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This experiment was designed to assess the capacity of dietary genistein (GEN), to attenuate bone loss in ovariectomized (OVX) and ovary-intact VCD-treated mice. Pretreatment of mice with 4-vinylcyclohexene diepoxide (VCD) gradually and selectively destroys ovarian follicles whilst leaving ovarian androgen-producing cells largely intact. VCD induces a perimenopause-like condition prior to the onset of reproductive acyclicity. Sixteen-week-old C57BL/6J mice were randomized to five treatment groups: sham(SHM), OVX, SHM + VCD, OVX + GEN, and SHM + VCD + GEN. In vivo, blood samples were drawn for hormone and isoflavone analyses, estrous cycles were monitored, and X-ray imaging was performed to assess changes in bone parameters. Following sacrifice, ovaries were assessed histologically, bone microarchitecture was evaluated via microcomputed tomography, and bone mechanical properties were measured. Some effects of GEN were observed in OVX mice, but GEN effects were not able to be evaluated in VCD-treated mice due to the subtle diminution of bone during the 4 months of this experiment.

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Chmielewska, Iwona. "Bearing capacity of floating geosynthetic encased columns (GEC) determined on the basis of CPTU penetration tests." Open Engineering 10, no. 1 (July 14, 2020): 699–704. http://dx.doi.org/10.1515/eng-2020-0078.

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AbstractFloating geosynthetic encased columns (GEC) are an increasingly popular method of strengthening weak subsoil. Design of floating columns is a difficult and not fully recognized issue. This paper treats the floating GEC column as a special kind of “pile” and its bearing capacity is calculated using five selected methods for calculating the bearing capacity of piles based on CPTU penetration tests. The calculations were done on the basis of insitu tests carried out on one of the sections of the Bargłów Kościelny bypass. The paper contains a comparison of the bearing capacities of floating GEC columns calculated with different methods based on CPTU penetration tests.

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Zhang, Y., M. Gregory, and Y. J. Shi. "Global engineering networks: The integrating framework and key patterns." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 221, no. 8 (August 1, 2007): 1269–83. http://dx.doi.org/10.1243/09544054jem820.

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The current paper proposes an integrating framework to present the essential elements of global engineering networks (GENs) from the perspectives of the context, capability, and configuration (3C). Using the 3C framework, three key patterns (efficient GEN, flexible GEN, and innovative GEN) of the leading practice have been identified. The research updates the concept of global engineering management for current business environments and aims to help researchers and practitioners to understand and manage dispersed engineering operations in dynamic environments. The framework is based on a literature review and refined by the empirical studies of a small number of companies in the aerospace, automotive, electrics, and fast-moving consumer goods (FMCG) sector. More in-depth studies across a wider range of industries would improve the validity and reliability.

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Dyartanti, Endah R., Agus Purwanto, Arif Jumari, and Tika Paramitha. "Optimization type of filler on electrochemical and thermal properties of gel polymer electrolytes membranes for safety lithium-ion batteries." Open Engineering 12, no. 1 (January 1, 2022): 439–46. http://dx.doi.org/10.1515/eng-2022-0045.

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Abstract Gel polymer electrolyte (GPE) membranes of polyvinylidene fluoride-based polymer matrix of different filler types such as nano-clay, ZnO, and SiO2 extracted from fly ash is produced using the non-solvent induced phase separation method. Moreover, the electrochemical properties, electrode compatibility, and the batteries performance are investigated using these gel electrolyte membranes. It is observed that gel electrolytes with nano-clay filler exhibited more stable ionic conductivity and charge–discharge performance than those containing ZnO and SiO2 extracted from fly ash. A maximum ionic conductivity of 5.62 × 10–3 S cm−1 was obtained with the addition of 8 wt% nano-clay filler at room temperature. The LiFePO4 performance assembled with these membranes is examined using coin cells (LiFePO4/GPE/graphite). After 50 cycles with a rate of 0.2 C, the battery with a different filler retained 97.7% of its initial capacity. It should be noted that this type of filler influences the electrolyte absorption, electrochemical properties, and performance of the LiFePO4.

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Cao, Ningyan, Normalisa Md Isa, and Selvan Perumal. "Effects of Risk Attitude and Time Pressure on the Perceived Risk and Avoidance of Mobile App Advertising among Chinese Generation Z Consumers." Sustainability 15, no. 15 (July 26, 2023): 11547. http://dx.doi.org/10.3390/su151511547.

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Generation Z (Gen Z) consumers require special consideration because they are a distinct demographic, are less receptive to mobile advertising, and have not been thoroughly studied. This study seeks to advance ad avoidance research by creatively examining Gen Zers’ perceived ad risk and ad avoidance in mobile applications (apps) and the role that risk attitude and time pressure play in these phenomena. The formal study was conducted in March 2023 via an online survey, and 312 sample data were identified for data analysis. It was found that there is a positive relationship between Gen Zers’ perceived risk and their avoidance of app advertising, with time, performance, and privacy risks being the primary advertising risks. Gen Zers perceive higher advertising risk when they are under time pressure or are risk-averse, and time pressure is a more vital indicator of perceived risk than risk attitude. Time pressure also significantly affects mechanical avoidance (e.g., using an ad blocker) more than behavioral avoidance. Still, the risk attitude only positively affects Gen Zers’ behavioral avoidance of app ads. This study concludes that ad avoidance can be reduced by reducing users’ perceived risk and time pressure. Also, ads should be placed based on consumers’ risk attitude. Future research needs to validate these findings in other cultures, compare Gen Z to other generations, and consider the consequences of ad avoidance.

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Prasitthipayong, A., D. Frazer, A. Kareer, M. D. Abad, A. Garner, B. Joni, T. Ungar, et al. "Micro mechanical testing of candidate structural alloys for Gen-IV nuclear reactors." Nuclear Materials and Energy 16 (August 2018): 34–45. http://dx.doi.org/10.1016/j.nme.2018.05.018.

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Vlasceanu, George Mihail, Livia Elena Crica, Andreea Madalina Pandele, and Mariana Ionita. "Graphene Oxide Reinforcing Genipin Crosslinked Chitosan-Gelatin Blend Films." Coatings 10, no. 2 (February 23, 2020): 189. http://dx.doi.org/10.3390/coatings10020189.

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This study was targeted towards the synthesis and characterization of new chitosan–gelatin biocomposite films reinforced with graphene oxide and crosslinked with genipin. The composites’ mode of structuration was characterized by Fourier Transform Infrared spectroscopy and X-ray diffraction, while morphology and topography were investigated by scanning electron microscopy, nano-computer tomography and profilometry. Eventually, thermal stability was evaluated through thermogravimetrical analysis, mechanical properties assessment was carried out to detect potential improvements as a result of graphene oxide (GO) addition and in vitro enzyme degradation was performed to discern the most promising formulations for the maturation of the study towards in vivo assays. In accordance with similar works, results indicated the possibility of using GO as an agent for adjusting films’ roughness, chemical stability and polymer structuration. The enzymatic stability of chitosan–gelatin (CHT-GEL) films was also improved by genipin (GEN) crosslinking and GO supplementation, with the best results being obtained for CHT-GEL-GEN and CHT-GEL-GEN-GO3 (crosslinked formulation with 3 wt.% GO). Yet, contrary to previous reports, no great enhancement of CHT-GEN-GEL-GO thermal performances was obtained by the incorporation of GO.

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Jan Vesseur, Ernst. "Next-Gen Color Technology Changes How Materials are Characterized." AM&P Technical Articles 178, no. 1 (January 1, 2020): 24–26. http://dx.doi.org/10.31399/asm.amp.2020-01.p024.

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Liang, Dong, Bingkui Chen, Chengli Hua, and Ruijin Liao. "Retraction notice to Generation and analysis of gear drive with tubular tooth surfaces having double contact points Arc. Civ. Mech. Engg. 17 (2017) 318–325." Archives of Civil and Mechanical Engineering 19, no. 1 (March 2019): 286. http://dx.doi.org/10.1016/j.acme.2018.12.001.

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Lašan, Michal. "Application of Small Punch Tests for Screening of Mechanical Properties for T91 Steel." Key Engineering Materials 606 (March 2014): 43–46. http://dx.doi.org/10.4028/www.scientific.net/kem.606.43.

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The T91 steel is considered a perspective structural material for Generation IV (GEN IV) nuclear reactors components. The operating conditions of GEN IV nuclear reactor, which include higher operating temperatures, higher neutron fluencies and using liquid metals as coolants, constitute new challenges for structural materials validation. To properly assess the impact of radiation, thermal, load and environmental damage the screening test procedures for initial overview of the induced changes of mechanical properties need to be developed and validated. One of the test procedures with potential to be used for the mechanical properties screening is Small Punch test. Small Punch test receive considerable attention since their development in the 1980's. The use of miniaturized test specimen constitutes minimal requirements for the test material and the option of obtaining the test material directly from the component. They have been successfully used on industrial scale for design life extension of components for energy industry in the past. In this paper we address the issue of the Fracture Appearance Transition Temperature (FATT) determination by the means of Small Punch test for the T91 steel, manufactured according to ASTM standard A387-Ed99. The test specimen were manufactured and used for the experiments in a wide range of test temperatures. Multiple levels of deformation energy were used to provide more representative interpretation of the test data. A data fit is applied on the deformation energy – test temperature dependence to obtain the value of FATT from Small Punch test, which is subsequently correlated to the values obtained from testing sub-size Charpy specimens.

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Nitu, Alexandru, Marioara Abrudeanu, and Vasile Radu. "Investigation of the Fracture Mechanics Properties of Small Tubes from Oxide Dispersion Strengthened Steels." Revista de Chimie 69, no. 12 (January 15, 2019): 3533–36. http://dx.doi.org/10.37358/rc.18.12.6786.

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The paper presents one part from the RATEN ICN contribution to the European FP7 MatISSE Project objectives, which is focused on the fracture mechanics properties of small tubes made from ODS steels (Oxide Dispersion Strengthened steels). The ODS tubes are foreseen as cladding tubes for gen IV reactors, and therefore the mechanical properties are very important for working in the most aggressive environment (irradiation and high temperatures) during the gen IV reactor operation. The fracture toughness, KIC, could be obtained for tubes with small diameters by means of the PLT-type mechanical test (acronym for Pin-Loading Test). This kind of test is a non-standard (ASTM) mechanical test, and during last decade it is still worldwide under development. The specific specimens for PLT-tests has been prepared from ODS tubes, which were provided to the project by the CEA France, a partner in the FP 7 MatISSE, in two different compositions: Fe -9cr ODS and Fe -14 Cr ODS. The paper highlights the PLT experimental test methodology, starting with obtaining of the geometric function, description of the experimental set-up and results processing.

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Wang, L. S., W. H. Sun, S. J. Chua, and Mark Johnson. "Retraction notice to “Comparative investigation of photoluminescence of In- and Si-doped GaN/A1GaN multi-quantum wells” [Mater. Sci. Eng. B (2003) 196–199]." Materials Science and Engineering: B 176, no. 9 (May 2011): 772. http://dx.doi.org/10.1016/j.mseb.2011.03.009.

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Wang, Ye, Yue Wang, Wei Du, Yulan Li, Fan Liu, and Mingsheng Zhao. "Ediacaran pithy macroalga Lanceaphyton n. gen. from South China." Journal of Paleontology 96, no. 2 (November 15, 2021): 452–61. http://dx.doi.org/10.1017/jpa.2021.98.

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AbstractWith differentiated tissues and organs, a high-level eukaryotic macroalga Lanceaphyton xiaojiangensis n. gen. n. sp. lived on the middle–late Ediacaran (ca. 560–551 Ma) seafloor in South China. Its body had a pith (perhaps mechanical tissue) and outer tissue (perhaps epidermis and/or cortex). The lance-like macroalga consists of an unbranching thallus that grew over the sediment surface for sunlight and a holdfast grown into sediments to keep the thallus fixed on the seafloor. The pithy stipe (lower thallus) might have served to support the upper pithless thallus for photosynthesis. The holdfast is composed of a tapering pithy rhizome growing down into the sediments, with many filamentous pithless rhizoids dispersedly growing within the sediments. With the differentiated tissues and organs, especially the pith accounting for about half of the width of the rhizome and stipe, Lanceaphyton n. gen. was a high-level eukaryotic macroalga, similar to phaeophytes in morphological features, but further research is needed on its microstructural details. The pithy macroalga shows that the macroalgal pith had emerged in the Ediacaran.UUID: http://zoobank.org/bc924c5c-84e4-4170-9ca1-caee0d56c6d5.

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Knott, J. F. "Structural integrity issues with Gen IV proposals: fast reactors and PBMR." Materials Research Innovations 16, no. 6 (November 2012): 377–84. http://dx.doi.org/10.1179/1433075x12y.0000000069.

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Yusof, Yusri, Noor Diana Kassim, and Nurul Zakiah Zamri Tan. "The development of a new STEP-NC code generator (GEN-MILL)." International Journal of Computer Integrated Manufacturing 24, no. 2 (February 2011): 126–34. http://dx.doi.org/10.1080/0951192x.2010.531289.

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Moody, Kevin, and Nick Stukan. "Embedded SIP Modules for next-GEN Heterogeneous “POWER-Devices”." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2019, DPC (January 1, 2019): 000383–407. http://dx.doi.org/10.4071/2380-4491-2019-dpc-presentation_tp1_073.

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In this paper will focus on the comprehension of System-in-Package (SiP) with embedded active and passive components integration will be described. Embedding of semiconductor chips into substrates provides many advantages that have been noted. It allows the smallest package form-factor with high degree of miniaturization through sequentially stacking of multiple layers containing embedded devices that are optimized for electrical performance with short and geometrically well controlled copper interconnects. In addition, the embedding gives a homogeneous mechanical environment of the chips, resulting in good reliability at system level. Furthermore, embedded technology is an excellent resolution to Power management challenges dealing with new device technologies (Si, GaS, GaN) and optimization on the thermal dissipation with improved efficiency. Embedded technology comes with many challenges in 2019, primarily design for manufacturability (DFM) and maturity. Customers are looking for better-performance capability and pricing normally that means same or lower than die free package cost (DFPC) comparison. This paper will discuss the challenges bring to market the Embedded SIP Modules for next-GEN Heterogeneous “POWER-Devices” Today, the embedded process is being developed by printed circuit board (PCB) manufacturers creating a new supply chain, bringing new players into the semiconductor industry. This new supply chain comes along with new business models. As a result of the increasing interest in implementing embedding technologies, ACCESS Semiconductors in China is committed to be a leader in the adaptation of embedding technologies, with over 10-yrs mature coreless technology and proved design rules for low profile dimensions with seamless Ti/Cu sputtering and Cu pillar interconnect giving advantages in both electrical & power performance. ACCESS Patented “Via-in-Frame” technology provides High Reliability (MSL1, PCT, BHAST) at Cost Effective in high panel utilization for HVM, using standard substrate/PCB known material sets, no need for wafer bumping/RDL, over-mold or under-fill cost adders. ACCESS Semiconductors is currently in HVM on single die 2L, and LVM on multi-devices actives/passives 4L SiP construction both platforms are driven from the power market segment. In-development on Die Last & Frameless (MeSiP) platforms utilizing hybrid technology (mSAP) and Photo Imageable Dielectric (PID) materials for cost down solutions in HVM by Q1FY2020. Also, ACCESS Semiconductors total turn-key solutions will include front-of-line (FOL) and end-of-line (EOL) capability from wafer handling, back-grinding, and dicing with KGD traceability thru the embedded chip process, frame/strip singulation, FT, marking pack & ship providing additional 30% cost reduction in the future. Here's an illustration of Embedded Technology Roadmap and Product Platforms.

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Gorgieva, Selestina, Azra Osmić, Boštjan Genorio, Viktor Hacker, Sigrid Wolf, and Silvo Hribernik. "The efficiency of chitosan-graphene oxide composite membranes modified with genipin in fuel cell application." E3S Web of Conferences 334 (2022): 04002. http://dx.doi.org/10.1051/e3sconf/202233404002.

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The paper reports on the processing of chitosan N-doped reduced graphene oxide (CS/N-rGO) nanocomposite membranes prepared by a facile, dispersion-casting procedure aimed as anion exchange membranes in fuel cells. Genipin (GEN) was used as a crosslinking agent to ameliorate mechanical weakens of nanocomposite membranes, while the N-rGO filler, aside of its role as a mechanical enhancer, is expected to improve the ionic conductivity of membranes. The resulting properties of processed membranes in terms of morphology, tensile strength, elasticity, and ethanol permeability were examined. The relevance of the membranes in terms of efficiency and performance was demonstrated in a single cell test.

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Kuchynskyi, K. A., and V. A. Kramarsky. "CALCULATED ASSESSMENT OF VIBRATION MOVEMENTS AND MECHANICAL STRESSES OF INSULATION FRONT PART OF THE STATOR WINDING OF THE POWERFUL TURBOGENERATOR." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2022, no. 63 (November 21, 2022): 45–51. http://dx.doi.org/10.15407/publishing2022.63.045.

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Presented are the results of numerical studies of the distribution of vibration displacements and mechanical stresses in the insulation of the frontal part of the stator winding of a powerful turbogenerator under the influence of electrody-namics forces for different constructive solutions of the groove fastening of the winding rods in the end zone of the gen-erator stator core. Modeling of mechanical processes is carried out using the finite element numerical method (FEM) in a two-dimensional setting. The possibility of improving the design with the aim of reducing the amplitude of oscillations of the front parts of the stator winding was considered. Ref. 16, fig. 7.

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Bartkowiak, Grażyna, and Agnieszka Krugiełka. "Business attitudes towards members of Gen Y functioning of the labor market." Studia Gdańskie. Wizje i rzeczywistość XIII (June 3, 2017): 59–78. http://dx.doi.org/10.5604/01.3001.0015.7121.

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The inspiration that prompted the authoress of this article to take up the issue of the confrontation was the opinion of representatives of generation Y the views of employers, owners of small medium sized businesses, self-employed for at least five years, regarding their opinions on the representatives of generation Y as employees. The elaboration is moving the issue of work attitudes representatives of generation Y, the considered from the perspective of employers. The article is composed of two parts: a synthetically presented theoretical discusses opinions to representatives of generation Y and mostly how they function in their workplaces and empirical aimed to know the attitudes of employers towards the representatives of generation Y in the labor market and in particular the organization and what actions should be taken from the perspective of the organization and the wider system and lying in the competence of the legislature to improve their cooperation with representatives of the generation Y. The study involved 46 owners of medium-sized companies, with more than 50 employees, have their own business for at least five years. The results showed concentrate on his career, and low loyalty towards the employer.

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Lieberman, Edward, and Jinil Chang. "Optimizing Traffic Signal Timing through Network Decomposition." Transportation Research Record: Journal of the Transportation Research Board 1925, no. 1 (January 2005): 167–75. http://dx.doi.org/10.1177/0361198105192500117.

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A signal control system named Real-Time/Internal Metering Policy to Optimize Signal Timing (RT/IMPOST) has been under development for several years. It is designed to compute signal timing plans for the entire range of operating conditions from under- to oversaturation for control systems ranging from first generation (GEN 1) to highly responsive advanced traffic management systems. The different flow regimes of urban traffic control are reviewed. Then the focus is on the treatment to develop cycle-based signal timing plans for inclusion in the data libraries referenced by GEN 1 real-time traffic control systems for the undersaturated-flow regime. This approach decomposes a grid network into its constituent arterial subsystems in a way that is responsive to user-specified priorities. The user may define and rank the arterial systems subsumed within a grid network so as to satisfy strategic objectives responsive to traffic demand patterns and local needs. The procedure computes optimal signal timing plans for all these arterial subsystems in a priority-ranked sequence and integrates these arterial-based timing plans to form a networkwide signal timing plan. Field and simulation test results are presented. The field tests confirm that the IMPOST timing plans improved the operational performance of traffic along an arterial system in New York State relative to a fine-tuned existing control. The simulation studies compared the performance of traffic responding to IMPOST signal timing plans with that responding to Synchro 6.0 signal timing plans. The benefits of network decomposition and of arterial priority ranking are also documented.

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Li, Yongkui, Jian Wang, Shanping Lu, Lijian Rong, and Dianzhong Li. "Mechanical Properties and Microstructures of the HAZs of 11Cr F/M Steel for Gen-IV Nuclear Power Station." Journal of Materials Engineering and Performance 24, no. 2 (December 11, 2014): 885–93. http://dx.doi.org/10.1007/s11665-014-1347-3.

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Budiatin, Aniek Setiya, Maria Apriliani Gani, Chrismawan Ardianto, Samirah, Sahrati Yudiaprijah Daeng Pattah, Fitroh Mubarokah, and Junaidi Khotib. "The impact of glutaraldehyde on the characteristics of bovine hydroxyapatite-gelatin based bone scaffold as gentamicin delivery system." Journal of Basic and Clinical Physiology and Pharmacology 32, no. 4 (June 25, 2021): 687–91. http://dx.doi.org/10.1515/jbcpp-2020-0405.

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Abstract Objectives Biomaterials are widely used as drug delivery systems targeting bone tissue, such as to treat bone infectious disease. However, the addition of drugs to biomaterials weakens their mechanical properties. Crosslinkers are compounds that improve the mechanical properties of biomaterials. This study aims to determine the effect of glutaraldehyde (GTA) as a crosslinker on the characteristics of bovine hydroxyapatite-gelatin-based bone scaffold with gentamicin as antibiotics (BHA-GEL-GEN-GTA). Methods BHA-GEL-GEN-GTA scaffold with GTA solid content ranging from 0.1 to 1.4 wt% was made by direct compression. The compressive strength test was carried out using autograph. Scaffold degradation test was carried out by dissolving the scaffolds in PBS. Scaffold toxicity was performed by MTT assay using BHK-21 fibroblast cells. Results There was a significant difference in the scaffolds’ compressive strength due to differences in GTA volume. Scaffold crosslinked using GTA with solid content 0.1 and 0.2 wt% in 2 mL solution had higher compressive strength than those in 1 mL solution. Furthermore, GTA with solid content 0.6, 1, 1.2, and 1.4 wt% showed higher compressive strength than those without GTA. Degradation test results showed that GTA increased the percentage of weight loss and swelling of the scaffold. The scaffold exhibited a nontoxic profile in MTT assay. Conclusions GTA with optimum solid content shows great compressive strength, stable swelling profile with low percentage of scaffold’s weight loss, and is considered as nontoxic.

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Kaede, K., A. Jäger, V. Gärtnerová, C. Takushima, T. Yamamuro, and S. Tsurekawa. "Measurement of Local Mechanical Properties of T91 Steel Corroded by Molten Lead-Bismuth Eutectic Alloy via Micropillar Compression Test." MRS Advances 3, no. 8-9 (2018): 419–25. http://dx.doi.org/10.1557/adv.2018.36.

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ABSTRACTT91 ferritic/martensitic (F/M) steel is an expected structural material candidate for Gen IV liquid lead-bismuth cooled nuclear reactors. However, molten lead-bismuth eutectic alloy (mLBE) often causes liquid-metal embrittlement (LME) of F/M steels. Although prior austenite grain boundaries and martensite block boundaries were reported to be preferential sites for LME, the mechanism of LME in a T91/LBE couple is yet to be comprehensively understood. In this paper, the effect of mLBE on T91 steel was investigated using micropillar compression tests. mLBE corrosion was found to cause a significant decrease in yield stress. The micropillar made from mLBE-corroded specimen was significantly sheared along high angle boundaries. In addition, EDS analysis demonstrated the presence of Pb/Bi at these high angle boundaries.

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Sonsino, C. M. "F�gen im Leichtbau. Bericht von der Tagung des DVM-Arbeitskreises ?Betriebsfestig keit?" Materialwissenschaft und Werkstofftechnik 26, no. 1 (January 1995): 51–53. http://dx.doi.org/10.1002/mawe.19950260110.

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Spry, David J., Philip G. Neudeck, Carl W. Chang, Srihari Rajgopal, and Jose M. Gonzalez. "Optimization of TaSi<sub>2</sub> Processing for 500 °C Durable SiC JFET-R Integrated Circuits." Key Engineering Materials 948 (June 6, 2023): 83–88. http://dx.doi.org/10.4028/p-86f73x.

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Experiments are described towards optimizing tantalum silicide (TaSi2) interconnect metal film sputter-deposition and annealing in a manner compatible with the NASA Glenn two-layer interconnect silicon carbide (SiC) JFET-R IC process flow. Films deposited on 100 mm diameter wafers were investigated over a range of film thickness, sputter deposition, and post-deposition anneal conditions. An optimized process that achieved TaSi2 films free of cracking and morphological defects while nearly halving post-anneal stress was developed and will be used for completing the interconnect fabrication of prototype IC Gen. 12 SiC JFET-R ICs.

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Yuan, Xiuyun, Siqi Yuan, Ya Liu, Yun Xia, and Xiaomao Zeng. "Microsatellites mapping for non-model species with chromosomal rearrangement: a case study in the frog Quasipaa boulengeri (Anura: Dicroglossidae)." Genome 60, no. 8 (August 2017): 707–11. http://dx.doi.org/10.1139/gen-2016-0200.

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Gene mapping is an important resource for understanding the evolution of genes and cytogenetics. Model species with a known genetic map or genome sequence allow for the selection of genetic markers on a desired chromosome, while it is hard to locate these markers on chromosomes of non-model species without such references. A frog species, Quasipaa boulengeri, shows chromosomal rearrangement polymorphisms, making itself a fascinating model for chromosomal speciation mediated by suppressed recombination. However, no markers have been located on its rearranged chromosomes. We present a complete protocol to map microsatellites based on mechanical microdissection and chromosome amplification techniques. Following this protocol, we mapped 71 microsatellites of Q. boulengeri at the chromosome level. In total, eight loci were assigned to rearranged chromosomes, and the other 63 loci might attach to other chromosomes. These microsatellites could be used to compare the gene flow and verify the chromosomal suppressed recombination hypothesis in Q. boulengeri. This integrated protocol could be effectively used to map genes to chromosomes for non-model species.

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Fischer, M., A. Henning, and R. Surmann. "Mitigation of severe accidents in AREVA's Gen 3+ nuclear power plants." Nuclear Engineering and Design 269 (April 2014): 323–29. http://dx.doi.org/10.1016/j.nucengdes.2013.08.047.

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Trevisi, Filippo, Iván Castro-Fernández, Gregorio Pasquinelli, Carlo Emanuele Dionigi Riboldi, and Alessandro Croce. "Flight trajectory optimization of Fly-Gen airborne wind energy systems through a harmonic balance method." Wind Energy Science 7, no. 5 (October 18, 2022): 2039–58. http://dx.doi.org/10.5194/wes-7-2039-2022.

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Abstract. The optimal control problem for flight trajectories of Fly-Gen airborne wind energy systems (AWESs) is a crucial research topic for the field, as suboptimal paths can lead to a drastic reduction in power production. One of the novelties of the present work is the expression of the optimal control problem in the frequency domain through a harmonic balance formulation. This allows the potential reduction of the problem size by solving only for the main harmonics and allows the implicit imposition of periodicity of the solution. The trajectory is described by the Fourier coefficients of the dynamics (elevation and azimuth angles) and of the control inputs (onboard wind turbine thrust and AWES roll angle). To isolate the effects of each physical phenomenon, optimal trajectories are presented with an increasing level of physical representation from the most idealized case: (i) if the mean thrust power (mechanical power linked to the dynamics) is considered as the objective function, optimal trajectories are characterized by a constant AWES velocity over the loop and a circular shape. This is done by converting all the gravitational potential energy into electrical energy. At low wind speed, onboard wind turbines are then used as propellers in the ascendant part of the loop; (ii) if the mean shaft power (mechanical power after momentum losses) is the objective function, a part of the potential energy is converted into kinetic and the rest into electrical energy. Therefore, the AWES velocity fluctuates over the loop; (iii) if the mean electrical power is considered as the objective function, the onboard wind turbines are never used as propellers because of the power conversion efficiency. Optimal trajectories for case (ii) and (iii) have a circular shape squashed along the vertical direction. The optimal control inputs can be generally modeled with one harmonic for the onboard wind turbine thrust and two for AWES roll angle without a significant loss of power, demonstrating that the absence of high-frequency control is not detrimental to the power generated by Fly-Gen AWESs.

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Zhao, Dandan, Shenghua Zhang, Hai Zhang, Shilei Li, Huifang Xiao, Yanli Wang, and Xitao Wang. "Effects of Tempering Temperature on the Microstructure and Mechanical Properties of T92 Heat-Resistant Steel." Metals 9, no. 2 (February 7, 2019): 194. http://dx.doi.org/10.3390/met9020194.

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T92 heat-resistant steel is among the most promising candidate materials for structural components in the Generation IV (GEN-IV) reactors. The effects of tempering temperature on the microstructure and mechanical properties of the T92 steel were studied. The microstructural evolution of the T92 steel subjected to various temperatures of the tempering process were investigated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and synchrotron radiation X-ray diffraction (SR-XRD). The mechanical properties of Vickers hardness, tensile test, and impact test were also investigated. The results showed that the grain size of the prior austenite does not significantly change during the tempering process, while the width of the martensite lath and the size of the carbide precipitates increased with increasing tempering temperature. The hardness and yield strength of the T92 steel decreased, and the plasticity and impact energy increased with increasing tempering temperature. Coarsening of the carbide precipitates during the tempering process was considered to be the dominant factor that reduced the yield strength in the T92 steel.

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Dogotari, Marcel, Moritz Prüm, Olee Hoi Ying Lam, Hemang Narendra Vithlani, Viet Hung Vu, Bethany Melville, and Rolf Becker. "Development of a UAV-Borne LiDAR System for Surveying Applications." Proceedings 30, no. 1 (May 23, 2020): 75. http://dx.doi.org/10.3390/proceedings2019030075.

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A high-resolution UAV-borne LiDAR system with a Velodyne VLP16-Lite at its core was developed for surveying applications. The LiDAR unit was combined with a high-end IMU-GNSS solution for direct georeferencing (APX-15) and a single-board computer for data acquisition (2nd-gen. Intel NUC). Hardware and software solutions were developed for system integration. Moreover, a mechanical mount for isolating the sensitive components of the system from the UAV’s high-frequency vibration was built and evaluated. System architecture and preliminary results were presented. Furthermore, a sensitivity analysis revealed the system’s most important sources of error and suggested ways to overcome these.

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Libera, Ondřej, Patricie Halodová, Petra Gávelová, and Jakub Krejčí. "NANOINDENTATION OF HYDROGEN ENRICHED Zr-1Nb ZIRCONIUM ALLOY NUCLEAR FUEL CLADDINGS." Acta Polytechnica CTU Proceedings 27 (June 11, 2020): 155–59. http://dx.doi.org/10.14311/app.2020.27.0155.

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Zirconium alloys are being commonly used as a material of choice for nuclear fuel claddings in water cooled nuclear reactors for decades due to their good corrosion resistance and low neutron absorption. However, the increasing operation conditions of next generation nuclear reactors (Gen-V) in terms of higher temperatures, pressures and higher neutron flux requires evaluation of further Zr cladding usability. The embrittlement of Zr claddings due to hydrogen pickup from reactor coolant is one of the issues for its potential use in Gen-IV reactors. Nanoindentation is an effective tool for analysis of the change of mechanical properties of hydrogen enriched Zr claddings from localised material volume. Zirconium alloy Zr-1Nb (E110) with experimentally induced hydrides was analysed by the means of nanoindentation. Zirconium hydrides were formed in the material after exposure in high temperature water autoclave. The optimized methodology of surface preparation suitable for nanoindentation is described and the resulting surface quality is discussed. The nanoindentation measurements were performed as an array of 10x10 indents across areas with hydrides. Depth dependent hardness and reduced modulus values measured by nanoindentation were compared between the material with no hydrogen content, low hydrogen content (127 ppm H) and high hydrogen content (397 ppm H). Complementary microhardness measurements at HV 0.1 were performed on all materials for bulk material hardness comparison.

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Maezono, H., Y. Noiri, Y. Asahi, M. Yamaguchi, R. Yamamoto, N. Izutani, H. Azakami, and S. Ebisu. "Antibiofilm Effects of Azithromycin and Erythromycin on Porphyromonas gingivalis." Antimicrobial Agents and Chemotherapy 55, no. 12 (September 12, 2011): 5887–92. http://dx.doi.org/10.1128/aac.05169-11.

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ABSTRACTAntibiotic resistance of biofilm-grown bacteria contributes to chronic infections, such as marginal and periapical periodontitis, which are strongly associated withPorphyromonas gingivalis. Concurrent azithromycin (AZM) administration and mechanical debridement improve the clinical parameters of periodontal tissuein situ. We examined thein vitroefficacy of AZM againstP. gingivalisbiofilms. The susceptibilities of adherentP. gingivalisstrains 381, HW24D1, 6/26, and W83 to AZM, erythromycin (ERY), ampicillin (AMP), ofloxacin (OFX), and gentamicin (GEN) were investigated using a static model. The optical densities of adherentP. gingivaliscells were significantly decreased by using AZM and ERY at sub-MIC levels compared with those of the controls in all the strains tested, except for the effect of ERY on strain W83. AMP and OFX inhibitedP. gingivalisadherent cells at levels over their MICs, and GEN showed no inhibition in the static model. The effects of AZM and ERY against biofilm cells were investigated using a flow cell model. The ATP levels ofP. gingivalisbiofilms were significantly decreased by AZM at concentrations below the sub-MICs; however, ERY was not effective for inhibition ofP. gingivalisbiofilm cells at their sub-MICs. Furthermore, decreased density ofP. gingivalisbiofilms was observed three-dimensionally with sub-MIC AZM, using confocal laser scanning microscopy. These findings suggest that AZM is effective againstP. gingivalisbiofilms at sub-MIC levels and could have future clinical application for oral biofilm infections, such as chronic marginal and periapical periodontitis.

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Yanez, Jorge, and Andreas G. Class. "Analysis of the accuracy of residual heat removal in gen-IV reactors." Nuclear Engineering and Design 376 (May 2021): 111102. http://dx.doi.org/10.1016/j.nucengdes.2021.111102.

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Hidayatun, Nurul, Nurwita Dewi, Andari Risliawati, Higa Afza, Yusi Nurmalita Andarini, Muhammad Sabda, and Kristina Dwiatmini. "Pendekatan Proaktif dalam Program Konservasi Sumber Daya Genetik Aneka Ubi Indonesia di Bank Gen Lapangan." Buletin Plasma Nutfah 28, no. 1 (September 17, 2022): 81. http://dx.doi.org/10.21082/blpn.v28n1.2022.p81-94.

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<p>Indonesia memiliki sumber daya genetik ubi yang cukup beragam. Sekitar 2.500 aksesi yang mencakup setidaknya 8 jenis ubi di-konservasi di bank gen lapangan Badan Penelitian dan Pengembangan Pertanian di Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian (BB Biogen). Tulisan ini memberikan pandangan mengenai pengelolaan koleksi sumber daya genetik aneka ubi yang dikoservasi di BB Biogen pada kurun waktu 2010–2019. Tulisan mencakup hambatan dalam pengelolaan, langkah-langkah yang telah ditempuh, dan langkah ke depan yang dibutuhkan untuk meningkatkan efisiensi dalam kegiatan konservasi. Sumber data dukung utama diperoleh dari laporan tahunan kegiatan, sedangkan konsep dasar dan pedoman pengelolaan sumber daya genetik dari sumber terpercaya dijadikan sebagai acuan. Konservasi sumber daya genetik aneka ubi di BB Biogen mengalami berbagai kendala yang menyebabkan hilangnya sejumlah aksesi. Hambatan utama dalam pengelolaan aneka ubi di lapangan adalah kurang diprioritaskannya kegiatan konservasi. Beberapa pendekatan telah dilakukan untuk mengu-rangi terjadinya kehilangan aksesi, seperti pemindahan lokasi dan penggantian sistem tanam, dan perbaikan pengelolaan tenaga teknis lapangan. Pemindahan tanam dari pertanaman lapangan ke pertanaman di pot disertai penunjukan tenaga teknis khusus yang telah dilakukan terhadap enam komoditas ubi menunjukkan kondisi hasil pertanaman yang lebih baik dan berkurangnya kasus kehilangan aksesi. Upaya ini perlu diteruskan dan diterapkan untuk seluruh koleksi ubi. Selain itu, untuk meningkatkan efisiensi pengelolaan, pendekatan proaktif pada aspek yang lain juga diperlukan. Pada aspek administrasi, sistem pengelolaan yang mandiri dengan dukungan kapasitas sumber daya manusia, fasilitas, dan pembiayaan yang memadai dibutuhkan untuk menjamin keber-langsungan kegiatan operasional bank gen. Pada aspek teknis, perlu dilakukan rasionalisasi aksesi, pembentukan koleksi inti, dan meningkatkan penyimpanan duplikat keamanan melalui konservasi berbasis in vitro.</p>

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Fu, Chen, Mesbah Uddin, and A. Clay Robinson. "Turbulence modeling effects on the CFD predictions of flow over a NASCAR Gen 6 racecar." Journal of Wind Engineering and Industrial Aerodynamics 176 (May 2018): 98–111. http://dx.doi.org/10.1016/j.jweia.2018.03.016.

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Kellner, Alexander W. A., Borja Holgado, Orlando Grillo, Flávio Augusto Pretto, Leonardo Kerber, Felipe Lima Pinheiro, Marina Bento Soares, et al. "Reassessment of Faxinalipterus minimus, a purported Triassic pterosaur from southern Brazil with the description of a new taxon." PeerJ 10 (May 3, 2022): e13276. http://dx.doi.org/10.7717/peerj.13276.

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Faxinalipterus minimus was originally described as a purported pterosaur from the Late Triassic (early Norian) Caturrita Formation of southern Brazil. Its holotype comprises fragmentary postcranial elements, whereas a partial maxilla was referred to the species. The assignment of Faxinalipterus minimus to Pterosauria has been questioned by some studies, but the specimen has never been accessed in detail after its original description. Here we provide a reassessment of Faxinalipterus minimus after additional mechanical preparation of the holotype. Our interpretations on the identity of several bones differ from those of the original description, and we found no support favoring pterosaur affinities for the taxon. The maxilla previously referred to Faxinalipterus minimus is disassociated from this taxon and referred to a new putative pterosauromorph described here from a partial skull and fragmentary postcranial elements. Maehary bonapartei gen. et sp. nov. comes from the same fossiliferous site that yielded Faxinalipterus minimus, but the lack of overlapping bones hampers comparisons between the two taxa. Our phylogenetic analysis places Faxinalipterus minimus within Lagerpetidae and Maehary bonapartei gen. et sp. nov. as the earliest-diverging member of Pterosauromorpha. Furthermore, the peculiar morphology of the new taxon reveals a new dental morphotype for archosaurs, characterized by conical, unserrated crowns, with a pair of apicobasally oriented grooves. These two enigmatic archosaurs expand our knowledge on the Caturrita Formation fauna and reinforce the importance of its beds on the understanding of Late Triassic ecosystems.

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Mikityuk, Konstantin, Miguel Ferreira, Branislav Hatala, Jan Leen Kloosterman, and Monika Šípová. "Review of Euratom projects on design, safety assessment, R&D and licensing for ESNII/Gen-IV reactor systems." EPJ Nuclear Sciences & Technologies 9 (2023): 18. http://dx.doi.org/10.1051/epjn/2022048.

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Five Euratom projects launched since 2017 in support of the development of ESNII/Generation-IV reactor systems are briefly presented in the paper in terms of key objectives, results, and recommendations for the future. These projects focus on various aspects of the following ESNII/Generation-IV systems: Sodium Fast Reactor, Gas Cooled Fast Reactor, Supercritical Water Cooled Reactor, and Molten Salt Fast Reactor. The paper does not consider EU projects focused on the Gen-IV reactor technologies based on the use of heavy metals as a coolant because these projects are reviewed in a different paper.

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Zhang, Peng, Kan Wang, and Ganglin Yu. "A Simplified Supercritical Fast Reactor with Thorium Fuel." Science and Technology of Nuclear Installations 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/405654.

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Super-Critical water-cooled Fast Reactor (SCFR) is a feasible option for the Gen-IV SCWR designs, in which much less moderator and thus coolant are needed for transferring the fission heat from the core compared with the traditional LWRs. The fast spectrum of SCFR is useful for fuel breeding and thorium utilization, which is then beneficial for enhancing the sustainability of the nuclear fuel cycle. A SCFR core is constructed in this work, with the aim of simplifying the mechanical structure and keeping negative coolant void reactivity during the whole core life. A core burnup simulation scheme based on Monte Carlo lattice homogenization is adopted in this study, and the reactor physics analysis has been performed with DU-MOX and Th-MOX fuel. The main issues discussed include the fuel conversion ratio and the coolant void reactivity. The analysis shows that thorium-based fuel can provide inherent safety for SCFR without use of blanket, which is favorable for the mechanical design of SCFR.

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Chandra, Laltu, and Ferry Roelofs. "CFD analyses of liquid metal flow in sub-channels for Gen IV reactors." Nuclear Engineering and Design 241, no. 11 (November 2011): 4391–403. http://dx.doi.org/10.1016/j.nucengdes.2011.01.023.

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Renz, A. Benjamin, Oliver J. Vavasour, Mathias Rommel, G. W. C. Baker, Peter M. Gammon, Tian Xiang Dai, Fan Li, Marina Antoniou, Phillip A. Mawby, and Vish Al Shah. "A Study of High Resistivity Semi-Insulating 4H-SiC Epilayers Formed via the Implantation of Germanium and Vanadium." Materials Science Forum 1062 (May 31, 2022): 523–27. http://dx.doi.org/10.4028/p-92w3k6.

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A systematic germanium (Ge) and vanadium (V) study on 4H-SiC epitaxial layers is presented. Electrical results of TLM structures which were fabricated on these layers revealed that highly-doped Ge and V-implanted layers showed extremely low specific contact resistivity, down to 2 x 10-7 Ω.cm2. Current flow in the conducting state of Schottky barrier diodes has been successfully suppressed in some implanted layers, with highly V doped samples showing current density values of approximately 1 x 10-5 Acm-2 at 10 V. DLTS spectra reveal the presence of germanium and vanadium centers in the respective samples as well as novel peaks which are likely related to the formation of a novel GeN center.

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Danjuma, Safyanu Bashir, Zamri Omar, and Mohd Noor Abdullah. "Design of Power Device Sizing and Integration for Solar-Powered Aircraft Application." Journal of Mechanical Engineering 18, no. 3 (September 15, 2021): 215–32. http://dx.doi.org/10.24191/jmeche.v18i3.15428.

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The power device constitutes the PV cell, rechargeable battery, and maximum power point tracker. Solar aircraft lack proper power device sizing to provide adequate energy to sustain low and high altitude and long endurance flight. This paper conducts the power device sizing and integration for solar-powered aircraft applications (Unmanned Aerial Vehicle). The solar radiation model, the aerodynamic model, the energy and mass balance model, and the adopted aircraft configuration were used to determine the power device sizing, integration, and application. The input variables were aircraft mass 3 kg, wingspan 3.2 m, chord 0.3 m, aspect ratio 11.25, solar radiation 825 W/m2, lift coefficient 0.913, total drag coefficient 0.047, day time 12 hour, night time 12 hours, respectively. The input variables were incorporated into the MS Excel program to determine the output variables. The output variables are; the power required 10.92 W, the total electrical power 19.47 W, the total electrical energy 465.5 Wh, the daily solar energy 578.33 Wh, the solar cell area 0.62 m, the number of PV cell 32, and the number of the Rechargeable battery 74 respectively. The power device was developed with the PV cell Maxeon Gen III for high efficiency, the rechargeable battery sulfur-lithium battery for high energy density, and the Maximum power point tracker neural network algorithm for smart and efficient response. The PD sizing was validated with three existing designs. The validation results show that 20% reduction of the required number of PV cells and RB and a 30% increase in flight durations.

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Wang, Yingjie, Zhixian Lai, Hanrui Qiu, Mingjun Wang, Wenxi Tian, and Guanghui Su. "Experimental and numerical analysis of the liquid metal mixing phenomenon in complex jets of Gen-IV nuclear system." International Journal of Heat and Mass Transfer 213 (October 2023): 124330. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2023.124330.

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Vogt, Jean-Bernard, and Ingrid Proriol Serre. "A Review of the Surface Modifications for Corrosion Mitigation of Steels in Lead and LBE." Coatings 11, no. 1 (January 6, 2021): 53. http://dx.doi.org/10.3390/coatings11010053.

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The review paper starts with the applications of liquid metals and then concentrates on lead and lead–bismuth eutectic used in Gen IV nuclear reactors and accelerator-driven systems. Key points of degradation modes of austenitic stainless steels and ferritic-martensitic steels, candidates for the structural components, are briefly summarized. Corrosion and liquid metal embrittlement are critical issues that must be overcome. Next, the paper focuses on the strong efforts paid to the mitigation of corrosion and reviews the different solutions proposed for the protection of steels in lead and lead–bismuth eutectic. There exist promising solutions based on protection by deposition of protective coatings or protection by “natural” oxidation resulting from optimized chemical composition of the steels. However, the solutions have to be confirmed especially by longer-term experiments and by additional mechanical testing.

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Magyar, Donát, András Tartally, and Zsolt Merényi. "Hagnosa longicapillata, gen. nov., sp. nov., a New Sordariaceous ascomycete in the Indoor Environment, and the Proposal of Hagnosaceae fam. nov." Pathogens 11, no. 5 (May 18, 2022): 593. http://dx.doi.org/10.3390/pathogens11050593.

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Hagnosa longicapillata, gen. nov., sp. nov, is described and illustrated from wooden building materials collected in Hungary and from pure culture. This species has been collected exclusively from indoor environments, where it was quite common. The ascocarps develop in a thick layer of brown, woolly mats of mycelia. The ostiolar region of the perithecia is ornamented with a five-lobed, flower-shaped crown. Asci are four-spored; ascospores are dark brown, smooth, muriform, not constricted at the septa, and liberated mostly through crackings of the thin ascomatal wall. Apparently, ascospores are dispersed by the mechanical disturbance of the mycelial web. In the phylogenetic tree, Hagnosa samples were placed as a basal lineage, independently from the other family of Sordariomycetidae, with high support. To place Hagnosa in Sordariales, the new family, Hagnosaceae, is proposed.

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Varela-Aldás, José, Renato Mauricio Toasa, and Paul Francisco Baldeon Egas. "Support Vector Machine Binary Classifiers of Home Presence Using Active Power." Designs 6, no. 6 (November 1, 2022): 108. http://dx.doi.org/10.3390/designs6060108.

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The intelligent analysis of electrical parameters has been facilitated by the Internet of Things (IoT), with capabilities to access a lot of data with customized sampling times. On the contrary, binary classifiers using support vector machines (SVM) resolve nonlinear cases through kernel functions. This work presents two binary classifiers of presence in the home using total household active power data obtained from the automated reading of an IoT device. The classifiers consisted of SVM using kernel functions, a linear function, and a nonlinear function. The data was acquired with the Emporia Gen 2 Vue energy monitor for 20 days without interruption, obtaining averaged readings every 15 min. Of these data, 75% was for training the classifiers, and the rest of the data was for validation. Contrary to expectations, the evaluation yielded accuracies of 91.67% for the nonlinear SVM and 92.71% for the linear SVM, concluding that there was similar performance.

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Mehlhorn, T. A., B. B. Cipiti, C. L. Olson, and G. E. Rochau. "Fusion–fission hybrids for nuclear waste transmutation: A synergistic step between Gen-IV fission and fusion reactors." Fusion Engineering and Design 83, no. 7-9 (December 2008): 948–53. http://dx.doi.org/10.1016/j.fusengdes.2008.05.003.

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GÁMEZ VINTANED, JOSÉ ANTONIO, ELADIO LIÑÁN, DAVID NAVARRO, and ANDREY YU ZHURAVLEV. "The oldest Cambrian skeletal fossils of Spain (Cadenas Ibéricas, Aragón)." Geological Magazine 155, no. 7 (May 30, 2017): 1465–74. http://dx.doi.org/10.1017/s0016756817000358.

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AbstractDiverse skeletal assemblage has been discovered in the Ediacaran/Cambrian strata of the Codos locality in NE Spain (Aragón, Cadenas Ibéricas). This assemblage includes at least seven genera, only three of which can be ascribed to known taxa. All the fossils are preserved in phosphate but their original microstructures are traceable by both elementary composition and microstructural features that are indicative for primary aragonite and high-magnesium calcite biomineralogies. Already these early skeletal fossils show sophisticated microstructures represented by heterogeneous multilayered composites to satisfy the requirements for better protection against both chemical dissolution and mechanical predator deterioration. The most common and best-preserved fossil, which is tubicolous Codositubulus grioensis gen. et sp. nov., is described here. The composition of the fossil assemblage and its stratigraphic position are indicative for the lowermost Terreneuvian (lower Cambrian) or even pre-Terreneuvian age of this fauna.

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Journal articles on the topic 'Mechanical Engg in Gen'

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