bluuebunny/crossref_metadata_2025 huggingface dataset:
Responsabilidad y ambigüedad de Helena en la épica homérica
Authors: Gómez Seijo Francisca
Published: May 2017

En este artículo la autora trata de señalar la conveniencia de revisar dos cuestiones vinculadas de manera recurrente a la caracterización de Helena en la épica homérica: su responsabilidad en la guerra de Troya y su ambigüedad. Diversos estudios críticos se centran en tales cuestiones, pero desde enfoques igualmente diversos. El presente trabajo intenta conciliar sus conclusiones y, a la vez, aportar una visión personal sobre el papel de Helena en la Ilíada y la Odisea.
The Year’s Work in the Oddball Archive (Eburne and Roof, eds.)
Authors: Campbell Craig
Published: May 2017

This work is a book review considering the title The Year’s Work in the Oddball Archive edited by Jonathan P. Eburne and Judith Roof.
Kinerja Pelayanan Sarana Umum di Kawasan Permukiman Terpadu Panakukang Mas Kota Makassar Berdasarkan Pendapat Masyarakat Pengguna
Authors: Bandaso Tyoer R. A.
Published: May 2017

Dengan kedudukan kawasan Panakukang Mas sebagai pusat pelayanan permukiman terpadu, dapat menciptakan masalah perkotaan yang mendasar yaitu ketersediaan sarana umum yang terbatas dan berkualitas sesuai dengan dinamika kebutuhan masyarakat dengan penyelenggaraan tata pelayanan publik yang baik. Penelitian menggunakan metode kuantitatif dengan analisis deskriptif ketersediaan sarana umum dan analisis skoring indeks kepuasan masyarakat terhadap pelayanan sarana umum. Teknik pengumpulan data melalui observasi dan kuesioner kepada masyarakat penghuni kawasan permukiman terpadu Panakukang Mas, dan telaah dokumen yang diharapkan dapat memberikan gambaran kinerja pelayanan dan penyediaan sarana umum di Panakukang Mas. Hasil penelitian menunjukkan kinerja pelayanan sarana umum kawasan permukiman terpadu kawasan Panakukang Mas berdasarkan masyarakat pengguna atau responden rata-rata berada pada nilai indeks kepuasan masyarakat kinerja pelayanan 62,51 - 81,25 atau baik. Kualitas layanan sarana umum di pemukiman terpadu Panakukang Mas meningkat dengan kinerja yang baik dan fokus pada lokasi dan jarak ke sarana umum. Pengukuran kinerja menunjukkan peningkatan kualitas dalam menjalankan layanan publik berdasarkan kebutuhan penyediaan sarana umum dan standar pelayanan publik.Kata kunci: kinerja pelayanan, sarana umum
Evaluasi Kebijakan Penataan Pkl di Kawasan Alun-Alun Ngawi
Authors: Puruhita Wahyudi
Published: May 2017

Pemerintah Kabupaten Ngawi melalui Perda nomor 6 tahun 2013, tentang penataan dan pemberdayaan PKL telah berupaya untuk mengatur PKL di kawasan Alun-alun Ngawi. Namun demikian dari beberapa upaya kebijakan tersebut masih meninggalkan persoalan, dikarenakan belum optimalnya kebijakan tersebut. Tujuan dari penelitian ini adalah untuk mengevaluasi kebijakan penataan PKL di Kawasan Alun-alun Ngawi. Proses evaluasi penataan PKL tersebut berdasarkan kriteria evaluasi seperti efektivitas, efisiensi, kecukupan, kesamarataan, responsivitas, dan ketepatan. Dalam mengidentifikasi karakteristik PKL dilakukan analisis statistik deskriptif. Selain itu juga dilakukan analisis deskriftif kualitatif dalam melakukan kajian terhadap materi kebijakan berdasarkan kriteria evaluasi kebijakan untuk menghasilkan indikator evaluasi kebijakan. Berdasarkan kajian terhadap materi kebijakan Penataan PKL telah memenuhi kriteria efektivitas, efisiensi, kecukupan, pemerataan, responsivitas dan ketepatan. Namun demikian berdasarkan data-data pencapaiannya, kriteria-kriteria tersebut masih belum dapat terpenuhi secara optimal, kecuali untuk kriteria ketepatan. Untuk dapat memenuhi kriteria tersebut, diperlukan tindak lanjut dari pemerintah , yaitu berupa ketegasan dalam pendataan dan pengawasan terhadap PKL, kematangan dan keterbukaan dalam perencanaan sarana fisik PKL, dan penguatan kerjasama antar instansi lembaga pemerintah. Dan tindakan yang harus dilakukan oleh para pedagang adalah berupa partisipasi aktif dan kesadaran dalam menjaga kawasan Alun-alun Ngawi.
One of My Favorite Judges: Constitutional Interpretation, Democracy and Antonin Scalia
Authors: Allan James
Published: May 2017

In this article the author explains why Antonin Scalia was one of his favourite judges. It starts by excerpting some of Justice Scalia’s most biting and funny comments, both from judicial and extra-judicial sources. Then it explains the attractions of an originalist approach to constitutional interpretation, though arguing that the intentionalist strain is preferable to Scalia’s ‘original public meaning’ or ‘new originalism’ approach. Finally, it argues that within the confines of a constitutional structure with an entrenched bill of rights, Scalia was a strong proponent of democratic decision-making to resolve key social policy decisions, unlike many other top judges.
Analytical performance specifications for external quality assessment – definitions and descriptions
Authors: Jones Graham R.D. , Albarede Stephanie , Kesseler Dagmar , MacKenzie Finlay , Mammen Joy , Pedersen Morten , Stavelin Anne , Thelen Marc , Thomas Annette , Twomey Patrick J. , Ventura Emma , Panteghini Mauro
Published: May 2017

External Quality Assurance (EQA) is vital to ensure acceptable analytical quality in medical laboratories. A key component of an EQA scheme is an analytical performance specification (APS) for each measurand that a laboratory can use to assess the extent of deviation of the obtained results from the target value. A consensus conference held in Milan in 2014 has proposed three models to set APS and these can be applied to setting APS for EQA. A goal arising from this conference is the harmonisation of EQA APS between different schemes to deliver consistent quality messages to laboratories irrespective of location and the choice of EQA provider. At this time there are wide differences in the APS used in different EQA schemes for the same measurands. Contributing factors to this variation are that the APS in different schemes are established using different criteria, applied to different types of data (e.g. single data points, multiple data points), used for different goals (e.g. improvement of analytical quality; licensing), and with the aim of eliciting different responses from participants. This paper provides recommendations from the European Federation of Laboratory Medicine (EFLM) Task and Finish Group on Performance Specifications for External Quality Assurance Schemes (TFG-APSEQA) and on clear terminology for EQA APS. The recommended terminology covers six elements required to understand APS: 1) a statement on the EQA material matrix and its commutability; 2) the method used to assign the target value; 3) the data set to which APS are applied; 4) the applicable analytical property being assessed (i.e. total error, bias, imprecision, uncertainty); 5) the rationale for the selection of the APS; and 6) the type of the Milan model(s) used to set the APS. The terminology is required for EQA participants and other interested parties to understand the meaning of meeting or not meeting APS.
The effect of preliminary processing and different methods of cooking on the iodine content and selected antioxidative properties of carrot (Daucus carota L.) biofortified with (potassium) iodine
Authors: Kapusta-Duch Joanna , Bieżanowska-Kopeć Renata , Smoleń Sylwester , Pysz Mirosław , Kopeć Aneta , Piątkowska Ewa , Rakoczy Roksana , Koronowicz Aneta , Skoczylas Łukasz , Leszczyńska Teresa
Published: May 2017

Carrot is a vegetable that contains many nutrients and has strong antioxidant activity as well as pro-health potential. The level of bioactive compounds is strongly connected with the production chain. The thermal treatment of food products induces several biological, physical and chemical changes. In this study, changes in the levels of iodine, total carotenoids, total polyphenols as well as the antioxidant activity of unpeeled and peeled controls and carrots biofortified with (potassium) iodine (KJ) during cultivation due to the cooking and steaming process were investigated. The use of thermal processes resulted in a lower concentration of iodine in the roots of the control as well as in carrots biofortified with (potassium) iodine. In addition, peeling carrots caused higher losses of this trace element in the control and the biofortified carrots cooked or steamed for various times. In this study, a significant growth of the total carotenoids in peeled carrots biofortified with (potassium) iodine and of the total polyphenols in unpeeled carrots biofortified with (potassium) iodine under the influence of the cooking and steaming processes was observed compared with raw peeled and unpeeled biofortified carrots, respectively. Antioxidant activity significantly increased in the unpeeled and peeled carrots biofortified with (potassium) iodine under all thermal treatments in comparison with the raw unpeeled and peeled biofortified carrots.
Radial distribution of monomeric, dimeric and trimeric norlignans and their polymerization in Cryptomeria japonica heartwood
Authors: Shimizu Yuri , Iki Taiichi , Imai Takanori
Published: May 2017

The norlignan (NorL) content in extractives of sugi (Cryptomeria japonica) shows a decreasing tendency from the outer to the inner part of the heartwood (hW). The hypothesis, that this effect may be due to polymerization, which aggravates NorL extraction, has been explored in the present study. To this purpose, samples were collected and extracted from the outer, middle and inner parts of the hW. Fractionation procedures of NorL-oligomers by LH-20 column chromatography were established, and the fractions were characterized by advanced analytical methods such as HPLC-SEC and HPLC combined with electrospray ionization ion trap mass spectrometry (HPLC-ESI-ion-trap-MS). Agatharesinol and sequirin C were the most abundant compounds. Several individual NorL-dimers and -trimers were detected for the first time, and four kinds of NorL-dimers and seven kinds of NorL-trimers were semi-quantitatively analyzed by HPLC-ESI-MS combined with selected ion monitoring (SIM). The oligomer contents show an increasing tendency from the outer part toward the middle and inner part of the hW, which accounts mainly for the monomeric NorL decrement in the same direction.
A propósito de los “falsos opuestos” en Ciencias Sociales -La IAP como posibilidad para la lectura integral y crítica de la realidad-
Authors: Gutiérrez Mora Esther
Published: May 2017

El presente artículo recoge algunas reflexiones en torno a los métodos cuantitativo-cualitativo y las discusiones epistemológicas que subyacen a su puesta en escena en el mundo académico. Para ello retoma algunos elementos históricos que fueron claves en la definición de sus particularidades, así como aquellos debates que generaron una ruptura en su percepción como “falsos opuestos”. A partir de esto, plantea la importancia de dinamizar una lectura integral de la realidad, donde lo cuanti-cualitativo no configura una mirada excluyente sino mutuamente constitutiva, plural y dialogante. El artículo cierra con la presentación de algunas metodologías participativas, haciendo especial énfasis en la Investigación Acción Participativa (IAP), al reconocer su avance en la integración de perspectivas (cuali-cuantitativas) para la compresión situada y crítica de la realidad social.
AGGREGATION OF Hotothuria (Metriatyla) albivenfer SEMPER (1868) (ESHIN9DERMATA: ASPIDOGHIROTIDA) ON SEAGRASS AREA OF MEDANA BAY WEST LOMBOK
Authors: Purwati Pradina , Widianwary Pitra , Dwiono Sigit Anggoro Putro , Samir Oktavianto
Published: May 2017

Mapping technique has not been popular in holothurian monitoring procedures. We introduced the use of global positioning system to determine the local distribution pattern and estimate the individual number of Holothuria albiventer al Medana Bay, West Lombok, Indonesia.
Participatory planning processes in Indian cities: its challenges and opportunities
Authors: Maiti Sudeept , De Faria Joao Villela
Published: May 2017

Historically, India has had strong local governments and probably drawing from this, is the spirit in which the country enacted the 73rd and the 74th constitutional amendment acts (CAA), in 1992[1]. This amendment aimed at a redistribution of powers to enable local bodies which are closer to local issues to respond more quickly and efficiently, rather than relying on a distant central body. However, the practices in participatory planning in Indian cities have been, at best, tokenistic in nature in the face of the challenge of implementing an effective decentralisation processes. The paradigm of citizen engagement and participative planning today must shift from one of the traditional redressal of grievances to that of collaborative solution building bringing both the government and citizen together in the development of local areas. This paper aims to analyse and evaluate participative local area planning practices in India, particularly at the level of the smallest administrative unit, i.e. wards. The study has been categorised in mainly two aspects: institutionalised and non-institutionalised processes dealing with participation at the bottommost rung of planning. This study is an attempt to highlight successful models of engagement, institutional structure and processes that allow for effective participatory planning and to identify possible ways of overcoming challenges of inclusiveness, budgeting and financing and the disconnect between citizens and administration in this process.
GARRETA BOCHACA, J. (Coord.) (2017). Familias y escuelas. Discursos y prácticas sobre la participación en la escuela. Madrid: Pirámide, 210 páginas, ISBN 978-84-368-3712-4
Authors: Martínez Lorea Ion
Published: May 2017

GARRETA BOCHACA, J. (Coord.) (2017). Familias y escuelas. Discursos y prácticas sobre la participación en la escuela. Madrid: Pirámide, 210 páginas, ISBN 978-84-368-3712-4
Endothelial cell metabolism inhibition: A new approach to the treatment of resistant metastatic colorectal carcinoma
Authors: Eltanani Shaimaa I , Ibrahim Ahmed S
Published: May 2017

March has been officially dedicated as National Colorectal Cancer (CRC) Awareness Month. This is important, as CRC incidence is now dramatically increasing in many developing countries that are undergoing major economic transition.
Analysis and ballistic design of a medium-caliber system with an attached camera of accelerating
Authors: Safronov A. I. , Azovsky V. M. , Zorkin V. A. , Chirkunova N. V.
Published: May 2017

The paper presents the results of investigating the temperature dependences of the velocities of launching a ballistic system of the SАC scheme based on the model of mechanics of heterogeneous media.The scheme proposed is shown to provide stable system operation in the temperature range from 40 to -40 C.
Dynamic method of investigating stress concentrators of the YMZ-238 engine crankshaft considering surface hardening plastic deformation
Authors: Bukaty A. S. , Kostichev V. E. , Deniskina E. A.
Published: May 2017

The article presents an approach to analyzing the stress-strain state of the YMZ-238 crankshaft after surface roller hardening. The approach is based on dynamic modeling of the stress-strain state of the crankshaft stress concentrators. The real-time modeling of roller hardening makes it possible to get a diagram of residual stresses occurring in the strengthened surface layer of the fillets. The next step is the analysis of the parts stress-strain state applying the boundary conditions corresponding to the operating conditions of the engine. The dynamic research of the stress-strain state of the crankshaft makes it possible to analyze the manufacturing technology and identify the origin of cracks in stress concentrators taking into account the improvement of fatigue resistance resulting from hardening treatment.
Influence of the reliability of Earth remote sensing spacecraft onboard systems on the monitoring of imaging periodicity
Authors: Kirilin A. N. , Akhmetov R. N. , Kurenkov V. I. , Kapitonov V. A. , Stratilatov N. R. , Lokhmatkin V. V.
Published: May 2017

The paper presents a method of assessing the periodicity of Earth remote sensing spacecraft imaging with account of the reliability of on-board systems. The method is based on spacecraft target functioning simulation taking into account onboard system failures.
Forming the conceptual structure of a dimensionally stable platform by numerical optimization
Authors: Peresypkin K. V. , Kozhichenkova M. S.
Published: May 2017

The paper presents a problem of adjusting the dynamic characteristics of a space vehicle that emerges in the course of restructuring its dimensionally stable structure. The adjustment is accomplished with the help of numerical optimization. The response of the structure is modeled by the finite element method.
Choosing the place for the installation of navigation system aerials on the ERS spacecraft body
Authors: Akhmetov R. N. , Kurenkov V. I. , Stratilatov N. R. , Shilov L. B. , Gordeev A. I.
Published: May 2017

The paper presents mathematical models, an algorithm and software for the assessment of the relative time spent by navigation satellites (NS) and Earth remote sensing (ERS) satellites under mutual visibility conditions. A method of choosing the place for the installation of navigation system aerials on the spacecraft body is proposed based on the criterion of maximum relative time of mutual visibility no less than a specified number of the NSs.
The use of regression models for estimating the standards of electric power losses in its transfer by territorial network companies
Authors: Goldshtein V. , Kubarkov Yu. , Rygalov A. , Revyakina E. , Stepanov V.
Published: May 2017

The paper deals with the issue of forecasting electric power losses for a five-year period in conditions of RAB-regulation. The use of multicriteria regression analysis and systems of visualisation of the obtained data in order to take well-founded decisions is proposed.
Research of the mechanism of shock-inertial deposition of dispersed particles from a gas flow
Authors: Usmanova R. R. , Zhernakov V. S.
Published: May 2017

The analytical dependence describing the efficiency of shock-inertial deposition of particulate matter depending on the properties of the trapped particulate material and operating parameters of the gas purification process is obtained. The design of a new shock inertial action device that makes it possible to optimize the process of gas clearing taking into account the characteristics of the trapped components is developed.
Simulation and research of factors affecting aerodynamic indices of the gas purification process
Authors: Usmanova R. R. , Zhernakov V. S.
Published: May 2017

A mathematical model is developed that makes it possible to conduct numerical research of the influence of various factors on the hydraulic resistance of a centrifugal gas washer. Theoretical assumptions and a model combining aerodynamics, operating and design parameters of the apparatus are developed. An algorithm of calculating hydraulic resistance is proposed which is used in simulating the process of purification of gas emissions.
Allan variance-based assessment of basic characteristics of a strapdown inertial sensing unit
Authors: Kutovoy D. A. , Sitnikov P. V. , Fedotov A. A. , Yakimov V. L.
Published: May 2017

The article describes the use of Allan variance method for analysing noise terms of output signals of pendulous accelerometers and fiber-optic gyroscopes in a strapdown inertial unit. The results obtained via the Allan variance method are compared to the parameters specified in the equipment certificate.
Sensor equipment “Shtil-M” for carrying out experiments on the “Resource-P” spacecraft
Authors: Semkin N. D. , Voronov K. E. , Pomelnikov R. A. , Shatrov S. A. , Piyakov A. V. , Bragin V. V.
Published: May 2017

Sensor equipment Shtil-M is described which is designed to monitor the magnetic environment of the Resource-P spacecraft with six three-component magnetometer sensors, to measure the magnetic field vector with a three-component magnetometer sensor, and to control the noise in power lines and possible electrostatic discharge registration. The results of measurements of the observed values are given.
Problems of unmanned spacecraft reengineering in abnormal flight situations and their knowledge-based solutions
Authors: Akhmetov R. N. , Makarov V. P. , Sollogub A. V.
Published: May 2017

Problems and principles of reengineering during the development of onboard and ground distributed systems that control the survivability of Earth observation satellites are dealt with in the paper. Ideas of built-in and remote reengineering and refactoring are under development. Examples of reengineering techniques used for the development of Resurs-DK and Resurs-P unmanned spacecraft are presented.
Development of a small-sized acoustic probe for the measurement of pressure pulsations in the gasdynamic duct of gas turbine engines
Authors: Gimadiyev A. G. , Bystrov N. D. , Ilyinsky S. A.
Published: May 2017

The paper presents a mathematical analytical justification of the scheme of a small-sized acoustic probe of pressure pulsations insensitive to changes in the average pressure. An option of engineering implementation of a device for measuring pressure pulsations in high-temperature conditions is described. Amplitude-frequency characteristics of a small-sized probe at various values of the average pressure in the unit under test are given.
Rearrangement of digital control algorithms with variable discrete pitch size
Authors: Belonogov V. D.
Published: May 2017

The necessity to change the control task discreteness period can arise in the course of operation when performing a multidimensional set of tasks of digital control, filtration and control on processors having limited computing power. This can be caused, for example, by a necessity to solve more important tasks occupying the computing resources at certain moments. In this case control tasks will be solved within an increased discreteness period , which will lead to the deterioration of the system dynamics at constant parameters of the digital regulator, and even to the loss in stability of a closed digital system, which is possible with a sufficient change of the period. A rearrangement of regulator parameters (operational conversion) versus the parameter determining the rate of quantization period change is needed to recover the circuit dynamic properties. This algorithm rearrangement should be implemented automatically in the process of digital system functioning and, consequently, the rearrangement algorithms should take a fairly simple form. The present work is concerned with the rearrangement of digital control algorithms in case of a significant change in the discreteness period of the control task. The criteria of the proximity of digital regulator characteristics are given for the changed and initial discrete pitch size . Explicit formulae of digital regulator constant conversion are obtained for the simplest control laws based on the criteria presented and a methodology of control constants rearrangement is formed for the general case.
The influence of the shuttle effect on the intensification of heat losses in a Stirling engine
Authors: Savchenko V. A. , Stolyarov S. P.
Published: May 2017

The paper presents a methodology of calculating negative heat flows in the cylinder-piston group of theStirling engine. Some of the most important of them are the shuttle effect and the pumping losses. The introductorypart of the article describes the physical side of the phenomena under investigation. The main relationshipsrecommended by the researchers for the calculation of the shuttle effect and pumping losses are presented in thepaper. A mathematical model is developed for the purpose of calculating the heat losses mentioned. The model isbased on representing the phenomenon as quasistationary radial heat transfer by means of convection and radiation.A system of algebraic differential equations of heat exchange between single elements of arrays is presented.The system of the main equations is solved by a numerical method of integration (a variety of Euler method -the method of limiting overrelaxation). Algorithms of controlling the accuracy of the calculations performed areincorporated in the program of calculation. The algorithm is used for defining the level of shuttle conduction andpumping loss in the1R30/6 Stirling engine designed at Saint-Petersburg State Marine Technical University. Inaddition a methodology of finding the heat dissipation factor in the gap between the displacer and the cylinderwall was developed. The extent of influence of the engine design data on the phenomena under consideration isanalyzed. Rank diagrams are constructed that visualize the results obtained.
Modeling of stall cavitation sensitivity of a booster turbopump assembly and comparison between experimental and numerical results
Authors: Kazyonnov I. S. , Kanalin U. I. , Poletaev N. P. , Chernisheva I. A.
Published: May 2017

Nowadays, screw booster pumps (BP) are used in engines of large and small thrust both of Russian andforeign designs to reduce the pressure in the tanks. Cavitation may occur in BPs like in any hydraulic systems.To determine the cavitation characteristics of screw and centrifugal pumps a number of empirical formulas wereobtained which do not fully take into account all the geometrical features of variable-step screws. Various modelsof cavitation are used in CFD programs; cavitation properties of any geometry can be obtained on the basis ofthese models. The paper presents the results of numerical analysis of the cavitating flow in a booster pump andtheir comparison with the experimental ones. Modeling was performed by ANSYS CFX. The cavitation phenomenawere simulated in a stationary approach using the Rayleigh-Plesset model. The geometrical model includedan axial-radial wheel and straightening vanes. The analysis was performed with and without a shroudring, a clearance gap and roughness. On this basis, a method of calculating the stall cavitation characteristics isdeveloped using ANSYS CFX.
Latest investigations on underplatform damper inner mechanics
Authors: Gola M. M. , Gastaldi C.
Published: May 2017

Underplatform dampers (UPDs) are widely used as a source of friction damping and are frequentlyincorporated into compressors and turbines for both aircraft and power-plant applications to mitigate the effectsof resonant vibrations on fatigue failure. Due to the nonlinear nature of dry friction, in general dynamic analysisof structures constrained through frictional contacts is difficult, direct time integration with commercial finiteelement codes may not be a suitable choice given the large computation times. For this reason, ad hoc numericalcodes have been developed in the frequency domain. Some authors prefer a separate routine in order to computecontact forces as a function of input displacements, others include the damper in the FE model of the bladedarray. All numerical models, however, require knowledge or information of contact -friction parameters, whichare established either through direct frictional measurements, done with the help of single contact testarrangements, or by fine tuning the parameters in the numerical model and comparing the experimental responseof damped blade against its computed response. The standard approach is to fine-tune and experimentallyvalidate the UPDs models by comparing measured and calculated vibration response of blade pairs. To ourknowledge, nobody has ever attempted to directly measure the forces transmitted between the platforms throughthe damper and the relative damper-platform movement.In the light of recent results from direct measurements on dampers it is evident that a dedicated routinefor the damper mechanics is an effective tool to capture those finer details which are essential to an appropriatedescription of damper behaviour. This was made possible by the successful effort of the present authors toaccurately measure the forces transmitted between the platforms through the damper, to connect them with therelative platforms movement and to use the findings for the validation of the numerical model. The crosscomparisonbetween numerical and experimental results allows to gain a clear understanding of all contactevents (stick, slip, lift) which take place during the cycle, and on how they influence the damping performance.
Elastic damping and dynamic characteristics of vibration isolators made of wire materials of different types
Authors: Yermakov A. I. , Lazutkin G. V. , Parovay F. V. , Boyarov K. V. , Bondarchuk P. V. , Davydov D. P.
Published: May 2017

A technology of manufacturing all-metal vibration insulation elastic-damping elements made of differentwire materials (Metal Rubber, MR Russia, Spring Cushion Germany) is presented in the paper. Elasticdamping,amplitude-frequency and mass-overall characteristics of three types of Russian and German vibrationinsulators are obtained and compared. On the basis of these results the main conclusions on different types ofvibration insulators are formulated and recommendations for the application of MR vibration insulators in theworld practice of vibration protection are given. The results of research and comparison of static, dynamic andmass-overall characteristics of three different types of vibration insulators are presented in the paper.
Development of a mathematical model of winding made of non-impregnated aramid fibers for strength analysis of the combined fan case in GTE compressor blade separation
Authors: Krundaeva A. N. , Shmotin Yu. N. , Tomilina T. V.
Published: May 2017

The design of a combined case with wound non-impregnation aramid fibers is presented. The main purposeof winding non-impregnation aramid fibers is to prevent the departure of the blade beyond the design of theengine. Wound non-impregnation aramid fibers - a new trend in security systems for aircraft gas turbine engines.Such systems are very cost-effective (value for money) to solve, for example, the problem of localization of thefragments of the engine when the blade is broken, since the threads have high specific strength per unit ofweight. In this regard, the introduction of engine design combined body is a very promising solution. The principleof operation of a combined case is as follows: compressor blade breaks into contact with the adjacent bladesand the housing. Metal case partially destroyed. Fragment blade engages through a metal casing with a threadwound to absorb the main part of the impact energy and keep the blade fragment to the drawing and friction witheach other. For the proposed options to protect the body from Flight of the blade turbine engine developed amathematical model based on the design of the complex LS-DYNA. The created model is verified by the resultsof field experiments and used to calculate the retention case cut short blades of a gas turbine engine.
Development of a single-section demonstrator rotary engine on the basis of a modern complex design procedure
Authors: Kostyuchenkov A. N. , Zelentsov A. A. , Semenov P. V. , Minin V. P.
Published: May 2017

There is no manufacture of aviation engines in power range of 100-300 hp. One of the most perspectivedecisions of the domestic low-sized aviation engines developing is creation of engines on the basis of modularityprinciple. This principle consists in designing of the unified power part and creation on the basis of itmultisection or multicylinder engines for maintenance necessary performance. Most simply given problem daresat creation of rotary engines. The paper presents modern design procedure of single rotary engine. This procedureincludes statement of target engineering performance, calculation of the basic dimensions of rotary engine,engine performance assessment subject to gas dynamics and mechanical losses, simulation of working processsubject to basic dimensions of rotary engine and heat transfer into combustion chamber wall. 3D-model of rotaryengines is created on the basis of calculations mentioned above. Calculation of engine geometry is carried out by analytical methods. Performance of rotary engine is calculated by using modern software. The 100 hp single rotary engine project was developed on the basis of this design procedure. In future this design procedure will be applied for developing 200 hp and 300 hp aviation rotary engines.
Problems of ultralow power turbine design in a turbine drive system
Authors: Kalabuhov D. S. , Grigoryev V. A. , Rad’ko V. M.
Published: May 2017

Ultralow power turbine drives (ULPTD) are used in the aerospace industry and in other sectors of theeconomy as source of energy for ancillary systems. At present, the actual task is improvement of their efficiency. One of the most promising areas for its increase is to optimize the parameters of turbine drive already in the earlystages of design.The article discusses the design of optimalultralow power turbine (ULPT), which is the main hub of ultralow power turbine drive. The basic problems of ultralow power turbine drive system optimizationthrough a systemic approach to design. The problem of optimization is tasked as a problem of the conventionalvector structural-parametric optimization. Methods and algorithms for its solution, justified criteria for ULPTDeffectiveness evaluating, selected optimized parameters of axial and centrifugal turbines types are described. Asthe performance criteria is selected coefficient of performance (COP) of the turbine, its mass, the specific consumptionof the working fluid, the cost of operating turbine drive. Expediency calculation mode selection in the optimization process of regime parameters evaluation criteria for generalized on ULPTD modes efficiency isgrounded. Results on the effect of uncertainty on the value of project information criteria are given.
Multicriterial choice of the best variant of the pulse detonation engine design for aircraft angular stabilization and orientation systems
Authors: Safronov V. V. , Porshnev V. A. , Zhebrakov A. S.
Published: May 2017

The verbal and mathematical formulations of the problem of multicriterion ranging of the pulse detonation engine design variants were carried out. Using the method of morphological box the morphological tablewas composed, on the basis of which many possible design variants of the pulse detonation engines were generated.When compiling the morphological table a conception of pulse detonation engines in the form of the followingsubsystems was considered: detonation chamber, components supply system, initiation system, controlsystem. Eventually as valid options, which were subjected to a study on the firing test bench, we selected twentyvariants. The system of criteria for the assessment of the pulse detonation engines design variants (specificthrust, frontal thrust, specific consumption, unit weight, length) was proposed. Criteria values were determinedduring firing tests. The peculiarities of solving problems by using the methods of "hard" ranging, hierarchiesanalysis, Borda`s method were discovered. The criterion formation of the true Pareto tuples was formulated. Usingthe methods of "hard" ranging, hierarchies analysis, Borda`s method, the criterion of the true Pareto tuplesformation the applied problems of choosing the best pulse detonation engine variant for three important caseswere resolved: - the atmosphere is taken into account, pulse detonation engine suffers the influence of the frontalresistance; - the atmosphere is taken into account, pulse detonation engine is located inside the aircraft and doesnot suffer the immediate impact of the frontal resistance; - the influence of the atmosphere is not taken into account,only pulse detonation engines without ejector are subject to the analysis. The best pulse detonation enginedesign variants for different values of the criteria priorities were revealed.
Determination of the conditions of nanoporous structures formation in metal materials by pulse-periodic laser treatment
Authors: Murzin S. P.
Published: May 2017

The influence of the laser treatment to create a nanoporous structure in copper-zinc alloy has beensearched. Laser treatment of pulse-periodic radiation enables to form a stable stress state on the sample surface ata temperature that does not exceed the melting point. The conditions of nano-pores formation mainly of thechannel-type with the depth of the area of nanoporous structure formation not less than 40-45 m has beenascertained. The re-searches of the surface layer structure of the copper-zinc alloy L62 after laser treatment haveshown that in the cross-section the pores are oriented from the surface to the deep of metal and the poresconcentration is decreasing with an increase of distance from the surface. The laser treatment creates ananoporous structure in the surface layer. Temperature and speed modes of treatment which mainly cause thechannel-type nanopores formation with a width ~100 nm, which form a nanoporous network, are determined.Likewise the vibration speed measurements of the samples were carried out. Regardless of the external laserexposure frequency the maximum values of the vibration speed occur at almost the same frequenciescorresponding to the natural oscillation frequencies, under such conditions the nanoporous structures are formed.Damping device application significantly reduces the vibration speed values. In this case, the formation of thenanopores in the metal material does not occur.
Designing of low-flow rate slider bearings for turbomachinery rotors
Authors: Parovay E. F.
Published: May 2017

In this paper, constructions peculiarities and an action mechanism are described as well as a design processof low demand sliding bearings. The analysis of the existing design methodologies shows their imperfectionsand impossibility adequately applying for characterization of low-flow sliding bearings. These bearings isoperated under low lubrication supply (no oil bath). Efficiency of the proposed design of the sliding bearing isbased on availability of the elastic suspension, bushings' bore in the radius of the shaft, which minimizes the timeof boundary friction and increases the bearing life. Described hydrodynamic model of the working gap allows todetermine the characteristics of the oil-flow. As a result of computational research has been established a generalizeddesigning method for new type of bearing, comprising stages: geometry choice, 3D-design, finite elementmodels of the narrow gaps creation, the calculation of the oil-flow characteristics, calculating the characteristicsof the elastic suspension, polycriterial optimization. Also shows the results of computational research of bearing'scharacteristics (diagram of pressure, depending the characteristics of the flow of lubricant on the angle ofbushings, etc.). Recommendations are given for optimizing the design and choice of materials.
The influence of maximum temperature of heating on the thermal fatigue of nickel heat-resistant alloys under thermocyclic tests
Authors: Tikhomirova E. A. , Sidokhin E. F.
Published: May 2017

The analysis of high temperature resistance alloys thermocyclic tests show that the lifetime Np is less whenmaximum temperature Тmax in test cycles (Т=Тmax-Тmin) is more 900С. In most test cases thermal cycle contentsthe plastic deformation. The cooling half-cycle includes three temperature intervals: first where heating halfcyclecompression stress decrease take place, second where tension stresses are increased to yield stress 02 andplastic deformation begin, and third interval - plastic deformation region, which is finished at minimum temperatureof cycle Тmin. The stress decrease interval length depends from value of stress, which is reached in precedeheating half-cycle and, as we consider, equal 02(Tmax). High temperature resistance alloys are characterized byyield stress 02 sharp decrease at temperatures which is more 900С. Because at cooling from temperatures, whichis lower 900С, stresses, which must to decrease, are larger on one third them at 1000С and on half them at1100С. Therefore third temperature interval is shorter at cooling from temperature which is more 900С, plasticdeformation is more and lifetime NP smaller.
Promoção da Saúde de Estudantes Universitários: contribuições da Terapia Comunitária
Authors: Buzeli Cintia Poleto , Costa Aldenan Lima Ribeiro Correa da , Ribeiro Rosa Lúcia Rocha
Published: May 2017

Com este relato de experiência de uma mestranda e duas docentes do curso de pós-graduação em Enfermagem da Faculdade de Enfermagem da Universidade Federal de Mato Grosso, buscou-se refletir sobre a Terapia Comunitária (TC) como uma prática de cuidado coletivo oferecida a estudantes universitários. Nosso objetivo é relatar a experiência da realização de rodas de TC em ambiente acadêmico, oferecendo subsídios teórico-metodológicos para a estruturação e implementação desta prática de cuidado ao estudante universitário em outras universidades. Utilizou-se para coleta de dados a observação direta das rodas de TC, as vivências profissionais como enfermeiras e terapeutas comunitárias, e a apreciação de documentos como o formulário de registro dos encontros de TC preenchidos pelo Terapeuta e Co-terapeuta após cada rodade TC. A experiência relatada tem demonstrado a efetividade da TC para a promoção da saúde desse grupo, evidenciando sua importância como uma prática para o fortalecimento e criação de vínculos entre a comunidade acadêmica, pela constituição de redes solidárias entre os estudantes, por ser um espaço de fala e de escuta de seus sofrimentos, de valorização de sua vida e de suas potencialidades, de promoção da auto-estima e de estímulo ao desenvolvimento de uma consciência democrática e cidadã.
Evaluación in vitro de extractos del genero Lilium para el control de Fusarium oxysporum
Authors: Iturbide-Zuñiga Anygim Senyase , Colinas-León María Teresa Beryl , Lozoya-Saldaña Héctor , Medina-Moreno Sergio Alejandro , Ayala-Arreola Juan
Published: May 2017

Se evaluó el efecto antifúngico de extractos de bulbos de Lilium híbrido L/A “Indian summer” sobre Fusarium oxysporum considerado como hongo patógeno que provoca daños severos en la agricultura y pérdidas económicas en diversos sectores de la industria. El extracto crudo se fraccionó en tres sub-extractos de acuerdo a la polaridad (polar, medianamente polar y no polar), los cuales se sometieron a bioensayos de inhibición siendo papa-dextrosa-agar (PDA) el tratamiento testigo. Las muestras que se trataron con el extracto medianamente polar presentaron la mayor inhibición, al disminuir la tasa de crecimiento en un 27%, en comparación al crecimiento micelial del testigo. Sin embargo, al comparar con extractos vegetales que reportaron bajo condiciones similares, se descarta como inhibidor del crecimiento y se considera como fungistático. 
Effect of nitrogen application to intercrops on yield, competition, nutrient use efficiency and economics in potato (Solanum Tuberosum L.) + French bean (Phaseolus Vulgaris L.) system in north-western hills of India
Authors: Dua V.K. , kumar Sushil , Jatav M.K.
Published: May 2017

The present study was carried out at Central Potato Research Institute, Shimla for three years to work out the nitrogen requirement of french bean and competition in potato + french bean (1:1) intercropping system. Application of 100% N to French bean, gave 29% higher pod yield than sole cropping, on area basis, however, the mean yield of french bean pods with 100% N was statistically at par with that under 50% N and significantly higher over 0 or 25% N. Land Equivalent Ratio (LER) values were greater than 1 at all N levels to French bean, the highest being 1.296 with 100% of N to french bean. The relative crowding coefficient (RCC) values of both the crops were more than one indicating that both the crops produced greater than ‘expected’ yields under intercropping, however, the aggressivity values indicated that french bean was a dominant species whereas potato was dominated species in intercropping, irrespective of N dose to french bean i.e. the extent of proportionate yield increase of french bean was more than potato in intercropping. The competition ratio also showed that french bean was more competitive than potato when fertilized properly. There was a positive mean balance of NPK and 36-68% of applied N, 64-74% of applied P and 44-77% of applied K was left as residual fertility under various intercropping treatments. Intercropping also gave higher net returns (Rs. 69 to 82 thousand/ha) and benefit:-cost ratio (2.43 to 2.66) than sole cropping of either of the crop. It can be concluded from the study that in potato + French bean (1:1) intercropping in north- western hills, N dose to french bean can be reduced by 50% without impairing soil health in terms of NPK balance.
Stability analysis in pole type beans (P. vulgaris) under temperate conditions
Authors: Sheikh Fayaz A. , Wani Shabir H. , Sofi Parvaze A . , Dar Zahoor  A . , Khan M. N.
Published: May 2017

The present investigation was undertaken during 2012-2014 to generate information through evaluation of the set of materials (breeding material, germplasm lines and other varieties at the farmers’ field along with the farmers’ variety as a check through stability using Eberhart and Russel Model. Trials were laid at various locations of three districts summing to a three mother trials with one grand mother trial at the research station. The yield and yield attributing traits of all genotypes were taken on ten competitive plants of both grand mother and mother trial. The genotypes WB-83 and WB-258 were selected and preferred by the farmers across locations. The genotypes were evaluated for stability analysis and showed divergence across locations. The mean squares of all the traits were significant reflecting that the material was genetically divergent. The pooled deviation was significant and the variance due to variety × environment was significant for various traits indicating that the variation in the performance of the genotypes is both unpredictable and predictable. Most of the genotypes were having higher mean than the average, bi less than unity indicating that the varieties were more specifically adapted to the unfavorable environments than favourable ones. Some of the genotypes having higher mean yield, bi > 1 and S2di tending to zero were specifically adapted to favourable environments. On the basis of stability parameters genotypes WB-83 and WB-258 were identified as the most stable genotypes for seed yield per plot across all locations on the basis of high mean performance and non-significant estimates of bi and S2di from unit and zero respectively, however latter genotype showed sensitivity to better environments for biological yield on the basis of significant bi estimates. Similarly these genotypes were identified as consistent for early flowering for all the locations.
Differential adoption behaviour of dairy farmers towards legume fodder crop berseem cv. Vardan
Authors: Singh* Khajan , Chkravarty Ritu , Singh A.Shyam , Rani Kavita , Sagar K Wadkar
Published: May 2017

The IRD Focused on Dairying Programme was initiated in two Districts of Uttar Pradesh for increasing the income and employment of the dairy farmers. Under the programme adoption behaviour of farmers towards growing berseem cv. vardan was studied. The variables such as education, dairy income, total income, family education, land holding, herd size, extension contact, personal–localite sources, knowledge of fodder cultivation practices, level of aspiration, attitude towards dairy scheme, employment generation and mass media were selected. To find out characteristics, which differentiate between ‘high’ and ‘low’ adopters, Mahalnobis D2 function was used and it was observed that attitudes have to be changed first for higher adoption of high yielding variety of berseem fodder crop, and more the dairy income more was the adoption. Knowledge level regarding scientific dairy farming practices also contributed to a great extent and a dairy farmer high on this variable was expected to take appropriate management decision to adopt all package and practices to get maximum yield of green fodder. Next in order of importance were total income, land holding and herd size, which often determine the standard of living and extension contacts of a dairy farmer and go a long way in influencing his adoption behavior.