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Bibliografie tematiche / J. A. Catherman Manufacturing Co

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Letteratura scientifica selezionata sul tema "J. A. Catherman Manufacturing Co"

Autore: Grafiati

Pubblicato: 29 luglio 2024

Ultima modifica: 30 luglio 2024

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Articoli di riviste sul tema "J. A. Catherman Manufacturing Co"

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Łaszkiewicz, Anna. "Co-creating value with the customers in manufacturing companies". Zeszyty Naukowe Politechniki Poznańskiej Organizacja i Zarządzanie 77 (2018): 195–204. http://dx.doi.org/10.21008/j.0239-9415.2018.077.12.

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Avil�s, Adrianna M., Emma Harris, Emily Kayden e Imari C. Tetu. "Guest Graduate Co-Editors". WLN: A Journal of Writing Center Scholarship 47, n. 4 (2023): 2. http://dx.doi.org/10.37514/wln-j.2023.47.4.02.

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Olivato, Juliana B., Maria V. E. Grossmann, Fabio Yamashita, Marcelo M. Nobrega, Monica R. S. Scapin, Daniel Eiras e Luiz A. Pessan. "Compatibilisation of starch/poly(butylene adipate co-terephthalate) blends in blown films". International Journal of Food Science & Technology 46, n. 9 (28 giugno 2011): 1934–39. http://dx.doi.org/10.1111/j.1365-2621.2011.02704.x.

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Desobry, Stéphane, e Joël Hardy. "The increase of CO 2 permeability of paper packaging with increasing hydration". International Journal of Food Science & Technology 32, n. 5 (ottobre 1997): 407–10. http://dx.doi.org/10.1046/j.1365-2621.1997.00128.x.

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van Aardt, Marleen, Susan Ellen Duncan, Joseph Edward Marcy, Timothy Edward Long, Sean Francis O'Keefe e Susan Rae Sims. "Release of antioxidants from poly(lactide-co-glycolide) films into dry milk products and food simulating liquids". International Journal of Food Science & Technology 42, n. 11 (novembre 2007): 1327–37. http://dx.doi.org/10.1111/j.1365-2621.2006.01329.x.

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SCOTTER, S. L., P. HOLLEY e R. WOOD. "Co-operative trial of methods of analysis to detect irradiation treatment of chicken samples: initial trial". International Journal of Food Science & Technology 25, n. 5 (28 giugno 2007): 512–18. http://dx.doi.org/10.1111/j.1365-2621.1990.tb01110.x.

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Kumar, Sanjay, e Aleksander Czekanski. "Optimization of parameters for SLS of WC-Co". Rapid Prototyping Journal 23, n. 6 (17 ottobre 2017): 1202–11. http://dx.doi.org/10.1108/rpj-10-2016-0168.

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Purpose WC-Co is a well-known material for conventional tooling but is not yet commercially available for additive manufacturing. Processing it by selective laser sintering (SLS) will pave the way for its commercialization and adoption. Design/methodology/approach It is intended to optimize process parameters (laser power, hatch spacing, scan speed) by fabricating a bigger part (minimum size of 10 mm diameter and 5 mm height). Microstructural analysis, EDX and hardness testing is used to study effects of process parameters. Optimized parameter is ascertained after fabricating 49 samples in preliminary experiment, 27 samples in pre-final experiment and 9 samples in final experiment. Findings Higher laser power gives rise to cracks and depletion of cobalt while higher scan speed increases porosity. Higher hatch spacing is responsible for delamination and displacement of parts. Optimized parameters are 270 W laser power, 500 mm/s scan speed, 0.04 mm layer thickness, 0.04 mm hatch spacing (resulting in energy density of 216 J/mm3) and 200°C powder bed temperature. A part comprising of small hole of 2 mm diameter, thin cylindrical pin of 0.5 mm diameter and thin wall of 2 mm width bent up to 30° angle to the base plate is fabricated. In order to calculate laser energy density, a new equation is introduced which takes into account both beam diameter and hatch spacing unlike old equation does. In order to calculate laser energy density, a new equation is formulated which takes into account both beam diameter and hatch spacing unlike old equation does. WC was not completely melted as intended giving rise to partial melting-type binding mechanism. This justified the name SLS for process in place of SLM (Selective Laser Melting). Research limitations/implications Using all possible combination of parameters plus heating the part bed to maximum shows limitation of state-of-the-art commercial powder bed fusion machine for shaping hardmetal consisting of high amount of WC (83 wt. per cent). Practical implications The research shows that microfeatures could be fabricated using WC-Co which will herald renewed interest in investigating hardmetals using SLS for manufacturing complex hard tools, molds and wear-resistance parts. Originality/value This is the first time micro features are successfully fabricated using WC-Co without post-processing (infiltration, machining) and without the help of additional binding material (such as Cu, Ni, Fe).

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Ma, Qingxiang, Xiang Xu, Yanxiang Gao, Qi Wang e Jian Zhao. "Optimisation of supercritical carbon dioxide extraction of lutein esters from marigold (Tagetes erectL.) with soybean oil as a co-solvent". International Journal of Food Science & Technology 43, n. 10 (ottobre 2008): 1763–69. http://dx.doi.org/10.1111/j.1365-2621.2007.01694.x.

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Kobayashi, Fumiyuki, Daisuke Sugawara, Tetsuya Takatomi, Hiromi Ikeura, Sachiko Odake, Shota Tanimoto e Yasuyoshi Hayata. "Inactivation of Lactobacillus fructivorans in physiological saline and unpasteurised sake using CO 2 microbubbles at ambient temperature and low pressure". International Journal of Food Science & Technology 47, n. 6 (28 marzo 2012): 1151–57. http://dx.doi.org/10.1111/j.1365-2621.2012.02954.x.

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KASAPIS, STEFAN. "Review: phase separated, glassy and rubbery states of gellan gum in mixtures with food biopolymers and co-solutes". International Journal of Food Science & Technology 30, n. 6 (1 luglio 2007): 693–710. http://dx.doi.org/10.1111/j.1365-2621.1995.tb01418.x.

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Libri sul tema "J. A. Catherman Manufacturing Co"

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HUME, JAMES P., e ALAN G. CARLSON. B & J Manufacturing Co. v. Solar Industries Inc. U.S. Supreme Court Transcript of Record with Supporting Pleadings. Gale, U.S. Supreme Court Records, 2011.

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Capitoli di libri sul tema "J. A. Catherman Manufacturing Co"

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Taber, Douglass F. "Oxidation of Organic Functional Groups". In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0008.

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Cancheng Guo of Hunan University devised (J. Org. Chem. 2014, 79, 2709) conditions for the oxidative cleavage of an alkyne 1 to the esters 2 and 3. Hirokazu Arimoto of Tohoku University found (Chem. Commun. 2014, 50, 2758) that IBX oxidized a primary alcohol 4 to the acid 5 one carbon shorter. David Milstein of the Weizmann Institute of Science uncovered (J. Am. Chem. Soc. 2014, 136, 2998) conditions for the direct oxidation of the cyclic amine 6 to the lactam 7, with concomitant evolution of H₂. Cyclic ene sulfonamides such as 9 are versatile synthetic intermediates. Henri Doucet of the Université de Rennes reported (Adv. Synth. Catal. 2014, 356, 119) the regioselective conversion of 8 to 9. In this case, the oxidizing agent was the organo-PdBr intermediate. There have been many reports of the functionalization of the oxygenated carbons of cyclic ethers, as exemplified by the conversion of 10 to 11, observed (J. Org. Chem. 2014, 79, 3847) by Jianlin Han of Nanjing University. If these methods were regioselective with an acyclic benzyl ether, this could be a new method for the removal of that common protecting group. Jianliang Xiao of the University of Liverpool described (J. Am. Chem. Soc. 2014, 136, 8350) a selective benzylic ether oxidation that converted 12 to 13. Baris Temelli of Hacettepe University effected (Synthesis 2014, 46, 1407) the conversion of a primary nitro compound 14 into the corresponding nitrile 15. Jean- Michel Vatèle of Université Lyon 1 oxidized (Synlett 2014, 25, 1275) the primary alcohol 16 to the nitrile 17. Many methods have been put forward for the oxidation of primary alcohols to aldehydes and secondary alcohols to ketones. Piperidinium oxy radicals such as TEMPO are widely used to catalyze this transformation. Yoshikazu Kimura of Iharanikkei Chemical Industry Co. Ltd. established (Synlett 2014, 25, 596) a manufacturing process for crystalline NaOCl•5H₂O that served as the bulk oxidant for the conversion of 18 to 19. Neither a ketone nor an aldehyde was chlorinated under the reaction conditions. Yoshiharu Iwabuchi of Tohoku University showed (Angew. Chem. Int. Ed. 2014, 53, 3236) that with his piperidinium oxy radical AZADO and Cu catalysis, air could be the bulk oxidant for the otherwise difficult conversion of the amino alcohol 20 to the amino ketone 21.

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"gluten quality involves the addition of low levels of gluten, ied typically are compared to results obtained by some about 2%, to a standard test flour, which often is of a type of baking test. McDermott [85] compared baking "weak" type, and observing the effects on bread quality. (Chorleywood bake test) and other properties of 30 com-Water absorption is adjusted as appropriate for the gluten mercial glutens, mostly of European origin (Table 8), and levels added [23]. A stressed gluten-enriched baking test found that under his test conditions six samples were of was identified [31], which assumes that gluten is added to relatively poor quality; correlation between baking perfor-enable production of specialty breads using substantial mance and other measured properties was not high. levels of non-gluten-containing ingredients such as rye Weegels and Hamer [130] studied a group of 32 European flour, dietary fiber, bran and germ, or raisins [49]. Czucha-commercial glutens. These workers devised a test involv-j owska and Pomeranz [31] described a simple, repro-ing protein content, denaturation index (based on a series ducible method for baking undiluted gluten, highly corre-of sodium dodecyl sulfate sedimentation measurements), lated with the gluten-enrichment baking test. and extensigraph resistance; a model utilizing these tests A prime reason for performing end-use tests of func-was able to predict 59% of the baking quality variation of tionality, of course, is to monitor variations in the quality the glutens. Bushuk and Wadhawan [20] examined 27 of commercial wheat glutens that can occur. Differences commercial gluten samples, although only 8 were subject-among commercial gluten are usually attributable to varia-ed to extensive end-use testing; the highest correlation co-tions in the starting material, wheat or flour, and/or efficients were between loaf volume and acetic acid-solu-changes caused by production processing conditions. Dur-ble protein (r = 0.88) and between loaf volume and ing processing, the drying of gluten is critical, as noted fluorescence of acetic acid extract (r = 0.98). above, and investigators have shown that less than opti-mum heat treatment can lower the baking quality of gluten (b) Nonbaking Tests. Considerable efforts have been [14,49,98,111,130]. However, McDermott [85] reported expended in developing nonbaking tests to evaluate the no definite relationship between manufacturing variables quality or vitality of wheat gluten for baking purposes. The and gluten quality in a group of 30 commercial glutens. baking test is often cited as being labor intensive, relative-Dreese et al. [38] studied commercial and hand-washed ly expensive, requiring skilled workers, and not effectively lyophilized gluten and found that differences were more differentiating gluten quality [86]. The farinograph has attributable to washing procedures than to drying proce-been used to evaluate gluten for many years. The usual ap-dures. proach has been to test the gluten as a gluten-flour mixture Results obtained by other methods that have been stud-(e.g., Refs. 5, 18, 36, and 49), while an alternative method TABLE 8 Properties of 30 Commercial Glutens Baking performance Property Average Range Poor Average Good Increase in loaf volume, %a 10 7.7-12.2 8.3 10.2 11.8 Protein, %b 77.4 66.4-84.3 76.2 77.4 81.1 Moisture, % 7.55.3-10.2 8.877.7 Particle size, % <160 p.m 88.8 55.8-98 80.5 91 90.3 Color 68.3 56.5-75 65.2 68.9 69.5 Lipid, % 5.84.2-7.65.86.15.1 Ash, % 0.69 0.44-0.94 0.71 0.74 0.6 Chloride, %` 0.08 0.01-0.28 0.10.08 0.08 Water absorption, mug protein 2.37 1.84-2.93 2.26 2.45 2.29 SDS sedimentation volume, ml/g protein 99 55-159 70 107 127 Lactic acid sedimentation, % reduction in turbidity 18 2-68 49 11 7 Hydration time, min 0.90.2-10 2.72.40.6 Extensibility, units/min 3.80.7-9.33.23.93.9 Viscosity, cP 117 73-222 159 109 101 '2% gluten protein. Dry matter basis. `As NaCl. Source: Ref. 85." In Handbook of Cereal Science and Technology, Revised and Expanded, 779–92. CRC Press, 2000. http://dx.doi.org/10.1201/9781420027228-83.

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Atti di convegni sul tema "J. A. Catherman Manufacturing Co"

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Chia, Andy, Vinayak Prabhu, An Zhi Gan, Melvin Puah, Vincent Lek, Teoh Woik Kiong e Vivian Shie Thow. "Development of a proof-of-concept space propulsion system for nano-satellite applications using additive manufacturing". In Symposium on Space Educational Activities (SSAE). Universitat Politècnica de Catalunya, 2022. http://dx.doi.org/10.5821/conference-9788419184405.101.

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In this project, Additive Manufacturing techniques was used to develop a proof-of-concept space propulsion system for nanosatellite applications. The main propulsion unit is made up of a metallic structural housing that is additively manufactured using aluminium powder (AlSi10Mg) on the EOS M290 machine. This housing serves as the reservoir that stores nitrogen gas as the propellant, and other components of the propellant system are assembled into it. The novel feature of the housing is that the propellant feed lines are integrated into the structure. This eliminated welds and joints typically found in conventional propellant storage tank, thereby minimizing leakage whilst simplifying assembly and integration. At the same time, the housing was designed using Design for AM techniques, and this made it possible to increase propellant storage capacity by minimizing support structures. The miniature propulsion nozzle, a key component of the propulsion system, was produced using micro-milling techniques to produce a full 3D converging-diverging profile. A secondary objective of the project was to validate this unique approach by conducting in-space validation experiments to determine the viability of AM in the development of space propulsion applications. Work is currently on-going in the assembly and integration of the proof-of-concept propulsion payload into a 1U Cubesat, where it will serve as the primary payload. This Cubesat mission features a secondary payload which is a commercial off-the-shelf imaging sensor with M12 ruggedized lens that will be tasked with space imaging applications. The current plan is to launch the Cubesat from the International Space Station using the J-SSOD module. The project was carried out by a multi-disciplinary staff/student team comprising faculty members with domain expertise in aerospace, additive manufacturing, avionics/electronics, advanced machining, quality assurance and mechanical testing. The faculty members were responsible for the design, development, and integration of the proof-of-concept propulsion and imaging payloads. The project also provided valuable opportunities for our students to gain hands-on experience in space and satellite engineering. The students hail from the diplomas in aerospace, aviation systems and advanced & digital manufacturing. They were co-located within the Assembly, Integration and Testing lab which features a class 10,000 clean booth. The students supported Cubesat and payload development and integration as well as mechanical testing.

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Kariyawasm, Malka, e Jinasena Hewage. "Enhancement of Semiconductor Properties of ZnO and Cu2 O for Photovoltaic Applications". In SLIIT International Conference on Advancements in Sciences and Humanities 2023. Faculty of Humanities and Sciences, SLIIT, 2023. http://dx.doi.org/10.54389/cqhg1902.

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The Photovoltaics phenomenon is one of the major turning points in the battle against the depletion of fossil fuels. Sunlight being the main resource in photovoltaics, there still remains a quest to harvest it efficiently, to generate electricity. This study is focused on designing a basic, cost-effective prototype solar cell using ZnO and Cu2 O nanoparticles (NPs) under normal university laboratory conditions. An ITO-coated glass was used as the substrate of the solar cell and a modified low-temperature chemical bath deposition method was used to fabricate the solar cell. Both ZnO and Cu2 O were synthesized by aqueous precipitation methods while cobalt co-doped Ag-ZnO NPs were synthesized by solvothermal method. The UV-spectroscopic analysis confirmed the characteristic band of ZnO-NPs at 367.5 nm, Cu2 O at 360 nm and cobalt co-doped Ag-ZnO at 378 nm. The FTIR spectrum showed sharp peaks at 460 cm-1 and 606 cm-1 for the corresponding Zn-O bond and Cu-O bond respectively with a broad peak at 1329 cm-1 for Cu2 O FTIR, due to the chemisorbed and/or physisorbed H2 O and CO2 molecules on the surface of nanostructure. The EDX analysis showed the presence of carbon impurity in ZnO-NPs which resulted in a deviated XRD pattern for ZnO while Cu2 O showed the characteristic XRD pattern. The solar cell, which was illuminated under three different lux conditions had a characteristic J-V plot when measured through Gamry Potentiostat. This simple, cost-effective technique can be adopted by large-scale solar cell manufacturing firms to build small prototype solar cells.

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Kazuki, Matsuo, e Satoru Ueno. "Fabrication and characterization of oleofoams composed of the edible oils and tribehenoyl-glycerol :Towards stable and higher air content colloidal system." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/orqa1659.

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In the food and cosmetics fields, foam is preferred for its soft texture and has been applied for long time to, for example, whipped cream and facial cleansing foam. Recently, foam has been attracting attention as a low-calorie functional food due to its good texture and growing health consciousness and as a high performance cosmetic due to high detergency, soft texture etc. Although extensive research about aqueous foam has been conducted for a long time, non-aqueous foams still represent a developing field. We have previously reported that oleogels composed of edible oils and tribehenoyl-glycerol (BBB) were successfully prepares upon rapid cooling and subsequent heating (K. Matsuo et al., J. Oleo Sci. in press). Importantly, the prepared oleogels demonstrated good stabilities (i.e., no oil drainage, and constant rheological properties) over 6 months. Thus, in this study, we have explored the first study about oleofoams with BBB /edible oil mixtures. We obtained oleofoams by whipping oleogels prepared at different BBB concentrations (4,6,8,10,20 wt%). The aeration of prepared oleogels was achieved with KENMIX KM-600 (Aicohsha Manufacturing Co., Ltd., Japan) with an attached whipper at a rotation speed of 200 rpm. Until 6 wt% BBB concentration, the sample was filled with more tightly arranged bubbles with relatively regular circles, but they varied in size. Compared to the relatively low BBB concentrations, the performance of 10 wt% BBB oleofoams was further improved, and it showed smaller-sized bubbles and more uniform circle shape, and bubbles were surrounded with thicker crystal layers, which were the evidence of the crystal layer wrapped around bubbles that hindered shape relaxation. Besides, the higher the stabilizer concentration, the higher the final overrun of oleofoams, and the greatest overrun at 10 wt% was about 300%. Progress on stability will also be reported on the presentation.

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Sanfedino, Francesco, Daniel Alazard, Andy Kiley, Mark Watt, Pedro Simplicio e Finn Ankersen. "Monolithic Versus Distributed Structure/Control Optimization of Large Flexible Spacecraft". In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-066.

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The widespread approach for Multi-Disciplinary Optimization (MDO) problems adopted in the Space industry generally follows a sequential logic by neglecting the interconnection among different disciplines. However, since the optimization objectives in the different fields are often conflicting, this methodology can fail to find global optimal solutions. By restricting the analysis to just structure and control fields, the common hierarchy is to preliminary define the structure by optimizing the physical design parameters and then leave the floor to the control optimization. This process can be iterated several times before a converging solution is found and control performance is met. Especially for large flexible structures, the minimization of the structural mass corresponds in fact to an increase in spacecraft flexibility, by bringing natural modes to lower frequencies where the interaction with the Attitude Control System (ACS) can be critical, especially in the presence of system uncertainties. Modern MDO techniques nowadays represents a tool to enhance the optimization task by integrating in a unique process all the objectives and constraints coming from each field. Two kinds of architectures can be distinguished in the MDO framework: monolithic and distributed. In a monolithic approach, a single optimization problem is solved, while in a distributed architecture the same problem is partitioned into multiple sub-problems containing smaller subsets of the variables and constraints. The development in the last decade of structured H∞ control synthesis opened the possibility of robust optimal co-design of structured controllers and tunable physical parameters. In fact, Linear Fractional Transform (LFT) formalism allows one to embed in the dynamic model tunable physical parameters treated as parametric uncertainties. In addition, thanks to these techniques, particular properties can be imposed on the controller, such as internal stability or performance respecting a frequency template, in the face of all the parametric uncertainties of the plant. This point is particularly important for aerospace applications where requirements are generally challenging and structural uncertainty, coming for example from an imperfect manufacturing or assembly, cannot be neglected. It has to be said that these techniques do not guarantee a global optimal solution of problem, so a good first guess can enhance the quality of the result. Alazard et al. [1] demonstrated how this multi-model methodology implemented in H∞ framework can be enlarged to include integrated design between certain tunable parameters of the controlled system and the stabilizing structured controller. There exist as well in literature a large class of problems where coupling between structure and control is considered unidirectional. This means that the objective function of the structural sub-problem depends only on the structural design parameters while the control criterion depends on both structural and control design parameters. A partition of the structure and controller design variables is desirable for practical implementation when the impact of the controller variables on the structural objective is relatively small. A strategy in this case is to solve the system-level problem as a nested optimization one, as in the BIOMASS test case [2]. For the present study both monolithic and distributed architectures are investigated on a real benchmark, the ENVISION spacecraft preliminary design. In particular, the problem formulation in the multi-body Two-Input Two-Output Ports (TITOP) [3] modelling approach allows the author to easily define an MDO problem by including all possible system uncertainties from the very beginning of the spacecraft design. In this way not only a structure/control co-design is possible, but system performance is robustly guaranteed. Where an analytical model of the structure is sufficient to describe the various spacecraft sub-components, a dependency from the design parameters can be captured in a minimal LFT model (built in SDTlib). In this approach the control/structure co-design problem is solved in a unique iteration by using the non-smooth techniques available in the Robust Control community. When the complexity of a structure cannot be handled with a simple analytical model (i.e. finer Finite Element Model (FEM) are necessary to ensure representativeness), a distributed architecture will be preferred. A nested optimization process is in fact necessary when a FEM software such as NASTRAN has to be interfaced with the control synthesis/analysis tools available within MATLAB/SIMULINK. In this case, the strategy is to iteratively optimize an inner H∞ control problem, which depends on both control and structural design variables, and the structural design themselves tare optimized by an outer global optimization routine. The aim of this paper is finally to contribute to the evolution of industrial practice in control/structure co-design, by proposing a unified and generic approach based on a well-posed modelling problem that integrates both design parameters and parametric uncertainties in a unique representation. The advantage offered by this framework is dual: to shortcut the unnecessary iterations among different fields of expertise and to speed up the validation and verification process by directly producing a robust preliminary design. References [1] Alazard, D. et al. Avionics/Control co-design for large flexible space structures. (2013) In: AIAA Guidance, Navigation, and Control (GNC) Conference, 12 August 2013 – 22 August 2013 (Boston, United States). [2] Falcoz, A., Watt, M., Yu, M., Kron, A., Menon, P. P., Bates, D., ... & Massotti, L. (2013). Integrated Control and Structure design framework for spacecraft applied to Biomass satellite. IFAC Proceedings Volumes, 46(19), 13-18. [3] Alazard, D., Perez, J. A., Cumer, C., & Loquen, T. (2015). Two-input two-output port model for mechanical systems. In AIAA Guidance, Navigation, and Control Conference (p. 1778).

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