Light airplane crash tests at three roll angles

Three similar twin engine general aviation airplanes were crash tested at the Langley impact dynamics research facility at 27 m/sec and at nominal roll angles of 0 deg, -15 deg, and -30 deg. Other flight parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed

Light airplane crash tests at three flight-path angles

Three similar twin engine general aviation airplane specimens were crash tested at Langley impact dynamics research facility at 27 m/sec and at flight-path angles of -15 deg, -30 deg, and -45 deg. Other flight parameters were held constant. The test facility, instrumentation, test specimens, and test method are briefly described. Structural damage and accelerometer data for each of the three impact conditions are presented and discussed

Crash tests of three identical low-wing single-engine airplane

Three identical four place, low wing single engine airplane specimens with nominal masses of 1043 kg were crash tested under controlled free flight conditions. The tests were conducted at the same nominal velocity of 25 m/sec along the flight path. Two airplanes were crashed on a concrete surface (at 10 and 30 deg pitch angles), and one was crashed on soil (at a -30 deg pitch angle). The three tests revealed that the specimen in the -30 deg test on soil sustained massive structural damage in the engine compartment and fire wall. Also, the highest longitudinal cabin floor accelerations occurred in this test. Severe damage, but of lesser magnitude, occurred in the -30 deg test on concrete. The highest normal cabin floor accelerations occurred in this test. The least structural damage and lowest accelerations occurred in the 10 deg test on concrete

A Few Considerations on Structural and Logical Composition in Specification Theories

Over the last 20 years a large number of automata-based specification theories have been proposed for modeling of discrete,real-time and probabilistic systems. We have observed a lot of shared algebraic structure between these formalisms. In this short abstract, we collect results of our work in progress on describing and systematizing the algebraic assumptions in specification theories.Comment: In Proceedings FIT 2010, arXiv:1101.426

The dual parameterization of the proton generalized parton distribution functions H and E and description of the DVCS cross sections and asymmetries

We develop the minimal model of a new leading order parameterization of GPDs introduced by Shuvaev and Polyakov. The model for GPDs H and E is formulated in terms of the forward quark distributions, the Gegenbauer moments of the D-term and the forward limit of the GPD E. The model is designed primarely for small and medium-size values of x_B, x_B \leq 0.2. We examined two different models of the t-dependence of the GPDs: The factorized exponential model and the non-factorized Regge-motivated model. Using our model, we successfully described the DVCS cross section measured by H1 and ZEUS, the moments of the beam-spin A_{LU}^{\sin \phi}, beam-charge A_{C}^{\cos \phi} and transversely-polarized target A_{UT}^{\sin \phi \cos \phi} DVCS asymmetries measured by HERMES and A_{LU}^{\sin \phi} measured by CLAS. The data on A_{C}^{\cos \phi} prefers the Regge-motivated model of the t-dependence of the GPDs. The data on A_{UT}^{\sin \phi \cos \phi} indicates that the u and d quarks carry only a small fraction of the proton total angular momentum.Comment: 33 pages, 11 figure

Quantum Cosmology and Conformal Invariance

According to Belinsky, Khalatnikov and Lifshitz, gravity near a space-like singularity reduces to a set of decoupled one-dimensional mechanical models at each point in space. We point out that these models fall into a class of conformal mechanical models first introduced by de Alfaro, Fubini and Furlan (DFF). The deformation used by DFF to render the spectrum discrete corresponds to a negative cosmological constant. The wave function of the universe is the zero-energy eigenmode of the Hamiltonian, also known as the spherical vector of the representation of the conformal group SO(1,2). A new class of conformal quantum mechanical models is constructed, based on the quantization of nilpotent coadjoint orbits, where the conformal group is enhanced to an ADE non-compact group for which the spherical vector is known.Comment: 4 pages, latex2e, uses revtex

The Algebras of Large N Matrix Mechanics

Extending early work, we formulate the large N matrix mechanics of general bosonic, fermionic and supersymmetric matrix models, including Matrix theory: The Hamiltonian framework of large N matrix mechanics provides a natural setting in which to study the algebras of the large N limit, including (reduced) Lie algebras, (reduced) supersymmetry algebras and free algebras. We find in particular a broad array of new free algebras which we call symmetric Cuntz algebras, interacting symmetric Cuntz algebras, symmetric Bose/Fermi/Cuntz algebras and symmetric Cuntz superalgebras, and we discuss the role of these algebras in solving the large N theory. Most important, the interacting Cuntz algebras are associated to a set of new (hidden) local quantities which are generically conserved only at large N. A number of other new large N phenomena are also observed, including the intrinsic nonlocality of the (reduced) trace class operators of the theory and a closely related large N field identification phenomenon which is associated to another set (this time nonlocal) of new conserved quantities at large N.Comment: 70 pages, expanded historical remark

Impact of Green Initiatives on the Financial Performance of Small and Medium Enterprises: The Case of Manufacturing Firm in Central Luzon

[EN] This study was conducted to propose the Green Economic Development Plan for Manufacturing S.M.E.s based on financial performance and operations thru Green Initiatives. The descriptive survey method used to gather data to determine the green initiative's implementation of small and medium (S.M.E.s) manufacturing enterprises. Green initiatives use as a basis for crafting a green economic development plan.  Document analysis was also employed to obtain data from any available printed materials and records provided by the respondents.  Such methods of gathering information used to validate data gathered from local and foreign-related literature.  The observation also employed to survey the assets owned and validate any green initiatives practiced, including their implementation. The study's findings show that among the green initiatives implemented by SMMEs, which resulted in the reduction of total costs and expenses, were the proper disposal and segregation of waste materials, water management by recycling wastewater and using water-efficient equipment, natural resources, and raw materials management.  SMMEs should encourage active participation and support of suppliers and customers in achieving G.E.D.'s objectives by developing incentive schemes. Furthermore, SMMEs should continue to benchmark with G.E.D. Practitioners are operating locally and abroad to adopt best greening strategies and regularly network with concerned government agencies for continuous updating on G.E.D. Initiatives that may benefit the firm.  Further research may be conducted on green initiatives implemented by small and medium enterprises in other industry sectors.Alfaro, MTB.; Diaz, RA. (2021). Impact of Green Initiatives on the Financial Performance of Small and Medium Enterprises: The Case of Manufacturing Firm in Central Luzon. WPOM-Working Papers on Operations Management. 12(1):28-41. https://doi.org/10.4995/wpom.14517OJS2841121Baines, T., Brown, S., Benedettini, O., & Ball, P. (2012). Examining Green production and its role within the competitive strategy of manufacturers. Journal of Industrial Engineering and Manage- ment, 5(1), 53-87. https://doi.org/10.3926/jiem.405Ballada, W., and Ballada, S. (2018). Basic Accounting: Made Easy 21st Edition. DomDane Publishers and Made Easy Books, Manila, Philippines.Bellgran, M. and Bruch, J. (2015). Environmental Management in Manufacturing Industries. In Handbook of Clean Energy Systems, J. Yan (Ed.). https://doi.org/10.1002/9781118991978.hces092Beredugo, S. B. (2014). Environmental Accounting and Social Responsibility Disclosure on the Earning Capacity of Nigeria Manufacturing Firms. Journal of Economics and Sustainable Development, 5(14).w ww.iiste.org.Cassells, S. and Lewis, K. (2011), S.M.E.s and environmental responsibility: do actions reflect attitudes?. Corp. Soc. Responsib. Environ. Mgmt, 18: 186-199. https://doi.org/10.1002/csr.269Dal Pont, J.‐P., Azzaro‐Pantel, C., Dal Pont, J.‐P. and Azzaro‐Pantel, C. (2014). Excellence in Manufacturing and Operations Control. In New Approaches to the Process Industries. https://doi.org/10.1002/9781118984536.ch5Dobers, P., & Wolff, R. (2000). Competing with "soft" issues - from managing the environment to sustainable business strategies. Business Strategy and the Environment, 9(3), 143-150. https://doi.org/10.1002/(SICI)1099-0836(200005/06)9:33.0.CO;2-CEguia, I., Lozano, S., Racero, J., & Guerrero, F. (2011). A methodological approach for designing and sequencing product families in Reconfigurable Disassembly Systems. Journal of Industrial Engineering and Management, 4(3), 418-435. https://doi.org/10.3926/jiem.2011.v4n3.p418-435Field, B.C. and Field, M.K. (2009). Environmental Economics: An Introduction.5th ed. McGraw-Hill International Edition. Singapore, 286.Jabbour de Sousa, A. B., Ndubisi, N.O., Roman Pais Seles, B.M. (2019). Sustainable Development in Asian Manufacturing SMEs: Progress and Directions Elsevier International Journal Production Economics. https://doi.org/10.1016/j.ijpe.2019.107567Marcus, P.A. and Willig, J.T. (1997) Moving Ahead with ISO 14000. New York: Wiley.Mohanty, R. P., & Deshmukh, S. G. (1998). Managing green productivity: Some strategic directions. Production Planning & Control, 9(7), 624-633. https://doi.org/10.1080/095372898233614Nassani, A. A., Aldakhil, A. M., Abro, M. M. Q., Zaman, K., & Kabbani, A. (2019). Resource management for green growth: Ensure environment sustainability agenda for mutual exclusive global gain. Environmental Progress & Sustainable Energy, 38 (4), 13132. https://doi.org/10.1002/ep.13132Nguyen, HM, Onofrei, G, Truong, D, Lockrey, S. (2020) Customer green orientation, and process innovation alignment: A configuration approach in the global manufacturing industry. Bus Strat Env., 29, 92498- 2513. https://doi.org/10.1002/bse.2516Ogega, O. M. (2017). Globalization and Global Warming: A Case of Laikipia County, Kenya. Journal of Energy and Natural Resource Management.Peris, S. F., Kamisah Supian, M. Waliul, H., & Md. Naim Hossain. (2020). A Mediating Effect of Green Market Orientation on the Environmental Performance: From a Literature Review to a Conceptual Framework. Journal of Management Info, 7(2), 92-118. https://doi.org/10.31580/jmi.v7i2.1421Promotion of Green Economic Development (ProGED)-Philippines. (n.d.) http://www.greengrowthknowledge.org/project/promotion-green-economic-developmentproged-Philippines.Rowlands, C. (2019). The Increasing Demand for Eco-Friendly Products and Packaging. https://www.packageintegrity.com/single-post/2019/02/27/The-Increasing-Demand-for-EcoFriendly- products-and-PackagingStead, J. G., & Stead, E. (2000). Eco-enterprise strategy: Standing for sustainability. Journal of Business Ethics, 24(4), 313-329. https://doi.org/10.1023/A:1006188725928Shoeb, A. (2015). Green Human Resource Management: Policies and practices, Cogent Business & Management, 2:1, https://doi.org/10.1080/23311975.2015.1030817Skrabania, L. (2018). Interview: RePack's Circular Packaging Solution for Online Retailers and Their Customers.November 19, 2018. https://en.reset.org/b log/interview-repacks-circular-packagingsolution-online-retailers-and-their-customers-11192018 (accessed: November 22, 2018).Tu, J. & Huang, H. (2015). Analysis on the Relationship between Green Accounting and Green Design for Enterprises. Sustainability 2015,7,6264-6277. https://doi.org/10.3390/su7056264Vachon S., Klassen R. (2008). 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Business intelligence no suporte a decisões sobre comunicações : descrição de um caso

O projecto descrito tem o objectivo de apoiar decisões de investimento em infraestruturas de comunicação na Electricidade Dos Açores (EDA), a empresa responsável pela geração, transporte e venda de corrente eléctrica na Região Autónoma dos Açores. A decisão imediata a apoiar consistia em saber se as comunicações entre ilhas deveriam passar para tecnologias Voice over IP (VoIP), um serviço actualmente contratado em regime de outsourcing. Foi estabelecido um projecto de business intelligence, usando tecnologias OLAP do Microsoft SQL Server, para ler e pré-processar os ficheiros CSV de grande dimensão, combinar esses dados com bases de dados existentes e apresentar os resultados sobre a forma de cubos multidimensionais. Posteriormente, implementaram-se igualmente algoritmos de data mining, integrando na metodologia CRISP-DM as duas técnicas utilizadas. Construindo vários modelos foi possível, além de apoiar a decisão pretendida, identificar situações ineficientes e mesmo fraudulentas. Os modelos construídos foram ainda disponibilizados aos decisores estratégicos e de controlo, assim como toda a estrutura de reutilização, manutenção e realimentação que suporta o OLAP e os modelos de data mining. Abstract:This project addresses decisions of investment on communication infrastructures in Electricidade dos Açores (EDA), the local Electric Company in the Azores Islands. The main decision was that EDA communications should be moving to Voice over IP (VoIP) from present telephone lines, outsourced to an external communications company. At the beginning, a business intelligence project was set, with the objective of getting data from the communications company and analyzing it in order to offer useful information to decision makers. The system uses Microsoft SQL server technologies to establish an OnLine Analytical Processing (OLAP) application. It translates big CSV flat files in a ROLAP infrastructure and presents the results as multidimensional data cubes. Latter some data mining models were implemented and both techniques were incorporated in the CRISP-DM process model. Different models identified several inefficient procedures and even fraud situations as long as supporting the investment decision. These models as long as all the technology developed for gathering data, maintain an manage the OLAP cubes and data mining models were made available to control and strategic decision makers.peerreviewe