bluuebunny/crossref_metadata_2025 huggingface dataset:
Port Newark, ampliación y mejoras
Authors: Editorial Equipo
Published: September 2016

Ligera descripción de las obras de mejora del puerto de Newark, New Jersey (EE. UU.), en cuyas obras, actualmente en estado muy avanzado de terminación, se invertirán años 65 millones de dólares. El proyecto de reforma comprende la construcción de 28 muelles de atraque en aguas profundas, un muelle para madera, otro para vinos, y numerosos servicios, edificios y vías de comunicación y transporte que complementan esta gran expansión portuaria.
Carretera pretensada
Authors: Editorial Equipo
Published: September 2016

La conocida razón social Jones & Laughlin Steel Corporation, movida por su Presidente, el Almirante Ben Moreell, y en presencia de un nuevo impulso del Gobierno Federal de los Estados Unidos, que parece va a consignar la fabulosa suma de unos 37 millones de dólares para la construcción y modernización de carreteras generales, se lanzó a una investigación de tipo privado para estudiar directamente las posibilidades que se le abren al hormigón pretensado en la construcción de carreteras.
Central hormigonera Parker
Authors: Editorial Equipo
Published: September 2016

No disponible
Avon Products Incorporated
Authors: Skidmore - Owings y Merrill Arquitectos
Published: September 2016

La firma americana Avon Products Inc., encontró en los arquitectos Skidmore, Owings y Merrill los realizadores de su programa constructivo de reunir, en un conjunto de edificios, oficinas, laboratorios y talleres de producción de sus célebres productos cosméticos, en Morton Grove, Illonois.
Puente Volta
Authors: Adamson Scott Petera , Roberts Gilbert
Published: September 2016

La creciente revaloración nacional y aumento de precio del cacao han dado una nueva potencialidad al antiguo estado de Costa de Oro, hoy conocido con el nombre de Ghana, cuya fusión con sus vecinos de Togoland constituye actualmente una nacionalidad en vías de prosperidad.
Puente de Saint – Maurice
Authors: Sarrasin Philippe
Published: September 2016

Sobre las dos laderas del cauce cerrado del tramo superior del río Ródano, ya en Suiza, donde separa los dos Cantones de Vaud y Valais, se apoyan los trazados de dos carreteras, cuya intercomunicación se hacía por un puente antiguo de mampostería, el cual, por su disposición y estrecha calzada, era causa de embotellamientos en la circulación.
Historia del puente en España
Authors: Fernández Casado Carlos
Published: September 2016

Volvemos a decir que es nuestro propósito estudiar, en este artículo y otros dos que seguirán, los puentes romanos de que tenemos noticia. Aunque la meta ideal es que sean todos los puentes romanos españoles, estamos forzados a errar, por defecto y por exceso, y al resultado será aplicable aquello de que "ni están todos los que son, ni son todos los que están". Para que el acierto fuera máximo', se precisaría la aportación de todas las personas que tengan conocimiento del tema. Sirvan estas líneas de invitación, y al mismo tiempo de agradecimiento anticipado a su ayuda tan necesaria para centrar la cuestión en su más y en su menos.
Altar del congreso eucarístico - Manacor
Authors: Riera Jaume Antonio
Published: September 2016

Con motivo del I Congreso Eucarístico Comarcal de Manacor se erigió este altar, proyectado y dirigido por el arquitecto Riera Jaume, en el que tuvieron lugar el pontifical y los más importantes actos del Congreso.
Grandes almacenes
Authors: Stevens – Wilkinson Arquitectos
Published: September 2016

La Compañía Rich's y sus arquitectos, Stevens y Wilkinson, junto con la colaboración de la firma Barber y Mc Murry, de Knoxville, después de muchos estudios llegaron a la conclusión de que una venta con beneficio no dependía de cubrir el solar entero con el edificio, sino el desarrollar alrededor de la construcción una zona amplia ajardinada, de forma que los clientes se sintieran seducidos por el atractivo del conjunto.
Kongresshalle. Berlín
Authors: Stubbins Hugh , Düttmann Werner , Mocken Franz
Published: September 2016

Para la realización de la exposición de la vivienda y urbanismo celebrada en Berlín, bajo la denominación de Interbau, los Estados Unidos han tomado una parte importante en su preparación, desarrollo y ayuda con su valiosa colaboración. Bajo la dirección de Ralph Walker, arquitecto americano, se creó un Organismo que debía encargarse de la formación, realización y coordinación de todo cuanto, directa o indirectamente, podría relacionarse con la exposición y los edificios que con carácter permanente debían construirse. En el seno del organismo creado, colaboradores de los dos países interesados designaron a H. Stubbins, arquitecto americano, para la redacción del proyecto de un edificio, de carácter permanente, que, por sus líneas generales, posición y simbolismo, estaba llamado a plasmar todo un raude de plausibles aspiraciones y de fácil adaptación a las actividades artísticas, científicas, económicas y políticas, a cuya finalidad puede admitirse se creó el referido organismo coordinador.
Lámina plegada. Universidad Laboral de Tarragona
Authors: Editorial Equipo
Published: September 2016

Entre las aplicaciones del hormigón pretensado en el campo de la edificación, merece especial mención la cubierta laminar construida para una de las naves de la Universidad Laboral de Tarragona. La nave es de forma rectangular, con 57,60 X 20 m de luz libre. La cubierta fue concebida por el arquitecto señor de la Vega y proyectada por el profesor Torroja, con la colaboración de los ingenieros Sres. del Pozo y Páez como especialistas en el cálculo de láminas.
Hipódromo Nacional de Caracas
Authors: Editorial Equipo
Published: September 2016

El nuevo hipódromo nacional de Caracas, de reciente construcción, se ha dotado, entre otras instalaciones, de un grupo de tres tribunas, de otras tantas plantas, cuya capacidad total se eleva a 35.000 espectadores sentados.
Casa en Cadaqués
Authors: Barba Corsini F. J.
Published: September 2016

Dado su emplazamiento, en terreno de la torre Zariquiey, Cadaqués (Gerona), ubicado entre dos calas de la Costa Brava, y teniendo en cuenta la dirección de los fuertes vientos dominantes, el arquitecto Barba Corsini ha proyectado este chalet, con una gran espalda envolvente que abraza todas sus dependencias protegiéndolas de éstos. Esta espalda, de mampostería ordinaria, adopta una forma aproximadamente circular, rota en dos partes y avanzando una de ellas respecto a la otra para dar origen a la entrada de la casa.
Vivienda sobre el Marne. Francia
Authors: Parent Claude , Perdrizet J. P. O.
Published: September 2016

La vivienda está situada sobre un terreno de pendiente muy acusada hacia el norte, orientación de la fachada noble de la casa, totalmente acristalada.
Casa de vacaciones en Nervi. Italia
Authors: Ravegnani Mario
Published: September 2016

Situada a lo largo de la vía que va de Nervi a San Hilario, a 50 m sobre el nivel del mar, esta vivienda domina un magnífico panorama que abarca todo el golfo Ligur desde los Alpes marítimos hasta el promontorio de Portofino, mientras que a sus pies se encuentra el parque Nervi, uno de los más bellos de Europa.
Warragamba. Sydney, Australia
Authors: Seshadri B.
Published: September 2016

El pantano de Warragamba, cuyo objeto es el de producir energía hidroeléctrica en su primera fase de explotación y solamente agua potable cuando las necesidades de ésta así lo requieran, se haya situado en las proximidades de Sydney (Australia). Su extensa cuenca está constituida por una serie de ríos en cuyas cabeceras se han construido diques de retención, que no solamente almacenan grandes cantidades de agua, sino que sirven parcialmente para la regularización de caudales, función de gran interés en esta zona donde las avenidas, seguidas de extensas inundaciones, se hacen sentir con relativa frecuencia.
Edificio de viviendas 320 Oakadale, Chicago
Authors: M. Schwartz Milton , Mazer Richard
Published: September 2016

El edificio 320 Oakdale Building fué proyectado como bloque de apartamentos de lujo, distribuyéndose tres por planta. Todos disfrutan de bellas vistas sobre él lago Michigan y el parque Lincoln. Las Ordenanzas de la ciudad de Chicago exigen que todos los edificios de nueva construcción estén provistos de aparcamiento para el 40 por 100 de los apartamentos. Si los soportes hubieran llegado hasta la planta baja no hubiera habido sitio suficiente para el estacionamiento de los coches. Por eso los arquitectos eliminaron los pilares en la tercera planta, transfiriendo la carga a vigas transversales voladizas que reposan sobre un pilar único de gran sección.
Puente Richmond
Authors: Editorial Equipo
Published: September 2016

El puente Richmond-San Rafael, como todas las obras de gran importancia, ha tenido una larga y meditada gestación antes de pasar del estado de anteproyecto al de ejecución. Su construcción se halla justificada en una imperiosa necesidad de vías de comunicación entre las dos márgenes de la bahía de San Francisco de California, en la zona que separa la población de Richmond de la de San Rafael. El tráfico por transbordadores entre las dos mencionadas márgenes era tan intenso y, a veces, interrumpido por huelgas y otros accidentes, que las colas de vehículos en espera para cruzar la bahía se hacía interminable.
Dos puentes. Río Tigris, Baghdag
Authors: Editorial Equipo
Published: September 2016

En el año 1953 se abrió un concurso público para la adjudicación de dos puentes sobre el río Tigris, denominados: uno Adhamiyah, y el otro, South Gate, situados dentro del casco urbano de la ciudad de Baghdad, bañada por el río. Anteriormente, sólo existían cuatro puentes para comunicar las dos márgenes del río en una zona de unos 20 km de longitud según el curso del río, complicando seriamente las comunicaciones y el tráfico creciente entre ambas márgenes.
Puente Clifton. Puente pretensado sobre el río Trent. Nottingham
Authors: Finch R. M. , Travers Morgan R. , Miller James
Published: September 2016

El nuevo puente de Clifton obedece a la necesidad que hace mucho tiempo se hacía sentir de un paso complementario sobre el río Trent en las proximidades de Nottingham. La gran densidad del tráfico que debía hacer frente al paso sobre el río, motivando embotellamientos de vehículos, ha sido la causa que ha precipitado la realización de este proyecto. El nuevo puente viene a remediar estos inconvenientes. Esta obra forma parte de un plan general de arterias de circulación provistas de dos calzadas; pero la urgencia del paso, ha sido la causa determinante de su realización independientemente del referido proyecto de carreteras.
Proyecto. Puente sobre el río Quinnipiac
Authors: Editorial Equipo
Published: September 2016

El puente sobre el rio Quinnipiac, en New Haven (EE. UU.), es, de las obras de fábrica de la autopista de Connecticut, la de mayor longitud, y presenta la particularidad de salvar su tramo central, de 118 m de luz, con cuatro vigas gemelas de alma llena, tipo cantilever, y parte rectilínea de cierre de unos 33 m de longitud.
Setting Priorities for the Development of Medicinal Plants Sector in J&K (Kashmir) and Their Progress towards Nanotechnology
Authors: Siddique Mohmmad Abubakar Ahmad , Jeelani Syed Mudassir
Published: September 2016

Medicinal plants have assumed global importance in view of their ever increasing usage in health care system. This resurgence of interest in herbal medicine has largely been an outcome of the realization of ill effects which other systems are inflicting on human beings. In India more than 7500 of the plants are being regularly employed in treating different ailments. Nearly 40% of known medicinal plants of Kashmir Himalaya are used in the Indian Pharmaceutical Industry alone. However, the continued exploitation of this resource from natural habitats in the absence of any cultivation programme has resulted in the extirpation of many herbs which require formulation of pound policies on the part of Government. Besides to empower the local communities the development of General Awareness Programs and their execution at the farmer's field is highly desirable. This may involve the establishment of Medicinal Plant Conservation Parks. The combination of nanotechnology and traditional medicine may provide a very useful tool in designing future medicines with improved bioavailability profile.
A Living ‘CCC'ase Study
Authors: Velliaris Donna M. , Pierce Janine M.
Published: September 2016

This chapter describes the Coglin Clothing Company (CCC), the focus of a multidisciplinary Live/Living Case Study (LCS) that was developed and introduced at the Eynesbury Institute of Business and Technology (EIBT) between 2010-2013. The LCS methodology endeavoured to address educational obstacles that had arisen from EIBT's international student population for whom it was first designed, but were typical problems of ‘business education' in general. This work begins by attending to issues such as: generalised problems of the education-experience business-related gap; the benefits of integrating more than one business discipline; the difficulties of handling various and conflicting sources of information; and the indispensability of action learning for deeper comprehension. A LCS was integrated across eight separate courses, including one titled ‘Management Principles'. The relevant literature is presented, followed by a discussion of the value of LCSs for acculturating (international) students to ‘real-life' business scenarios.
Development of Knowledge and Skills with Case Method
Authors: Prystupa Kaja , Luethi Omar
Published: September 2016

The aim of this chapter is to analyze the application of two different variations of the case study method at different levels of education programs in reference to the development of knowledge and skills. Based on theoretical foundations the authors share good practices of their own experience as educators at HSO Business School in Switzerland and Kozminski University in Poland. Both institutions face different challenges created by different institutional settings. These reach from pre-experienced undergraduate and graduate student group in a traditional University setting in Poland to part-time students with several years of work experience in higher vocational education in Switzerland.
The Application of the Learning Sciences to the Design of Business Education Cases
Authors: Hamlin Michael D.
Published: September 2016

Business education is education for practice and thus, requires a systematic and integrative approach that will guide students toward becoming reflective practitioners. Case-based education is an important tool that can provide the educational experiences that produce effective practitioners but only if its use is guided by a sound theoretical and research based framework. Research and theory from the learning sciences can guide case-based instructional practices. This chapter will provide a framework for the design of case-based instruction that incorporates teaching and learning affordances derived from the theory of situated learning and cognition. If the educational goal is to produce business practitioners with the skills and knowledge necessary to operate successfully in today's global business environment, business education needs to be prepared to incorporate theoretical perspectives derived from learning sciences research into case-based education.
Management Methodology
Authors: Pierce Janine M. , Velliaris Donna M.
Published: September 2016

This chapter overviews the rationale and methodology underpinning the implementation of two ‘purpose written' case studies delivered within two separate undergraduate Management courses. Finding suitable pre-existing Management-related case studies for different student cohorts can be difficult and time consuming, and may only partially align with the learning objectives. Writing one's own case studies to meet the learning objectives of courses is viewed by the writers as a proactive strategy to redress this gap. It is advantageous that the case study author enables students to apply diagnostic skills in diverse situations that may range from simple to complex, and to ensure that students are drawing on theoretical underpinnings from their Management coursework. This chapter further presents on how to develop in students the ability to shift from being a reactive learner to examining a case proactively through a strategic managerial lens for diagnosing and solving problems.
Case Study as a Teaching Method in Marketing
Authors: Awdziej Marcin
Published: September 2016

The traditional published case studies have been successfully used in marketing education for decades. However, recent changes in marketing practice, prompted by disruptive changes in the marketplace, highlight their shortcomings as an educational instrument. To remain relevant and deliver the desired learning outcomes, new or modified approaches to case-study teaching might be necessary. This chapter is structured as follows: first, the changes in business environment and their impact on marketing education is discussed. Second, the advantages and shortcomings of the traditional published case study as an educational instrument in marketing are presented. Third, new approaches to case study are critically evaluated. These are live case, participative case writing, and web-based cases.
An Empirical Study of the Effects of Training Sequences on Database Training Tasks and User Outcomes
Authors: Sanford Clive C. , Bhattacherjee Anol
Published: September 2016

This paper introduces the concept of IS training sequences and examines how sequencing of conceptual and procedural training impacts task and user outcomes. Building on assimilation theory, we propose four hypotheses, relating training sequences to task performance, satisfaction, and self-efficacy, and test them using a quasi-experimental study in a database design context. Our empirical results suggest that subjects trained in the conceptual-procedural sequence achieve better far-transfer and near-transfer task performance and higher self-efficacy than those trained in the reverse sequence, although user satisfaction is not significantly different between the two groups. Implications for IS training research and practice are discussed.
Managing Organizational Knowledge by Diagnosing Intellectual Capital
Authors: Bontis Nick
Published: September 2016

Since organizational knowledge is at the crux of sustainable competitive advantage, the burgeoning field of intellectual capital is an exciting area for both researchers and practitioners. Intellectual capital is conceptualized from numerous disciplines making the field a mosaic of perspectives. Accountants are interested in how to measure it on the balance sheet, information technologists want to codify it on systems, sociologists want to balance power with it, psychologists want to develop minds because of it, human resource managers want to calculate an ROI on it,and training and development officers want to make sure that they can build it. The following chapter represents a comprehensive literature review from a variety of managerial disciplines. In addition to highlighting the research to date, avenues for future pursuit are also offered.
Nitriding Effect of NaNO3 Salt in Duplex Stainless Steel
Authors: Shurdjanov Jamshid D. , Kim In Soo
Published: September 2016

Duplex stainless steel was nitrided by sodium nitrate, NaNO3, salt bath from 592°C to 650°C for 1 to 10 hours. The microstructure, microhardness and tensile strength were investigated after nitriding of duplex stainless steel sheets. Microhardness of sample was increased from 279.7 HV to 296 HV after nitriding in bath of NaNO3+4.8%NaCl salt at 650°C for 8 hours. Tensile strength was increased from 880 to 939.36 MPa and elongation of duplex stainless steel sheet was decreased from 42% to 38% after nitriding in salt bath of NaNO3 at 650°C for 8 hours. The nitriding effect of NaNO3 salt is similar with KNO3 salt in duplex stainless steel sheet. NaNO3 salt is cheaper than KNO3 salt. Therefore, NaNO3 salt is more economical than KNO3 salt to nitride duplex stainless steel.
Study on Erosion Wear Resistance of Internal Coating of Wear-Resistant FRP Compound Pipe
Authors: Li Xing Hui
Published: September 2016

A resin matrix compound coating is prepared by taking epoxy as the matrix and α-Al2O3 particle as the reinforced phase. By simulating the actual wear conditions of pipes in the heavy medium coal preparation in a laboratory, the paper explored the change law of the erosion wear resistance of wear-resistant coating with different reinforced particle sizes and abrasion angles, and discussed the wear mechanism by combining with abrasive appearances. The results show that reinforced particles with a lager particle size (60 mesh) are of excellent erosion wear resistance when the erosion wear particle is smaller (200 mesh), and the α-Al2O3 particle wear-resistant epoxy coating with a particle size of 60-80 mesh is of good erosion wear resistance under the condition of heavy medium coal preparation and is suitable to be a wear-resistant coating material.
Knowledge Management of Net Requirements in Using Natural Rubber in Thai Rubber Industry to Support the Increase in Using Natural Rubber within Thailand
Authors: Hanthanon Pran , Kaisone Thiti , Wiphanurat Chanon , Nampitch Tarinee
Published: September 2016

A blend of natural rubber (NR) and styrene butadiene rubber (SBR) was tested against conventional rubber products sold in department stores and markets, using nuclear magnetic resonance (NMR) spectroscopy to measure the amount of natural or synthetic rubber in the product. 1H-NMR spectroscopy was employed for the rubber blend and 13C-NMR spectroscopy for conventional products. The chemical shift of all the samples from the structure of natural rubber (cis-1,4 polyisoprene) was observed.
Flammability of Bamboo Fabric Reinforced Polypropylene Composites and their Hybrids
Authors: Zuhudi Nurul Zuhairah Mahmud , Jayaraman Krishnan , Lin Richard
Published: September 2016

Hybridisation is introduced as one way to use bamboo fabric as natural fibre reinforced composites (NFRCs). The research intends to determine the extent to which bamboo fabric can replace glass fibre in glass polypropylene (GPP) composites and whether the proposed hybrids are capable of competing, particularly in comparison to the flammability of GPP composites. This study evaluates the effect of hybridization on the flammability properties of bamboo fabric reinforced polypropylene composites and their hybrids. Flammability tests using cone calorimeter show that the peak Heat Release Rate (HRR) was reduced up to 39% for BPP50%, at 511.8 kW/m2, in comparison with that of neat PP, based on maximum peak values of 842 kW/m2. Interestingly, in the hybrid composites, the peak HRR reduced as glass fibre was replaced with bamboo fibre. These composites demonstrate a significant decrease in peak HRR, over 30% less than the neat PP and GPP composites respectively. These results indicate that a significant portion of the glass in GPP may be replaced with bamboo fabric, with a positive effect on fire resistance. This reduction in flammability and the improved properties obtained demonstrate promise for these hybrid materials in future applications.
Study of Additional Compensation Shielding Gas Technique for Pulsed MIG Seam Welding
Authors: Dong Chang Wen , Xue Jia Xiang , Chen Zhen Sheng , Zhu Qiang
Published: September 2016

This paper proposes a novel additional compensation shielding gas technique for seam welding as a method to overcome weld defects caused by atmospheric exposure of high-temperature solid and liquid state welding seams. This technique can be used to appropriately modify the existing pulsed MIG welding system through the addition of a gas control branch channel, allowing for control of compensation shielding gas flow to the system. A plate overlay experiment was carried out with 18-8 austenitic stainless steel base metal and a modified pulsed MIG welder with a modified a gas control branch channel. The results suggest that this technique can be used to meliorate weld defects, improve welding seam shape and enhance welding efficiency.
Mechanical and Thermal Properties of Toughened PLA Composite Foams with Modified Coconut Fiber
Authors: Kaisone Thiti , Harnkarnsujarit Nathdanai , Leejarkpai Thanawadee , Nampitch Tarinee
Published: September 2016

Composite foams from PLA, natural rubber and modified coconut fibers was prepared employing a compression molding method, which is suitable for the fabrication of composites containing high fiber content. The results revealed that the incorporation of natural rubber into composite foams increases the compressive stress to 101.17 kN/m2. Further, a 10% wt increase of modified coconut fiber added into composite foams resulted in an increase of compressive stress to 105.24 kN/m2. The addition of modified coconut fibers in composite foams showed a slight decrease of the crystallization state, obtained by DSC results by about 1-3 oC. Thus, modified coconut fibers played a role as a nucleating agent. Moreover, the combination of modified coconut fibers in composite foams could lead to improved adhesion between the surface area of PLA matrix and the natural rubber phase.
Compressive Properties of Polylactic Acid-Based Nanocomposite Foams Reinforced with Coconut Fibers
Authors: Nampitch Tarinee , Kaisone Thiti , Hanthanon Pran , Wiphanurat Chanon
Published: September 2016

The investigation focused on the properties of composite foam obtained by a compression molding method. The results could clarify the interaction among PLA, silica nanoparticles and coconut fiber. The compressive properties, including the compressive force and modulus of composites, contained in coconut fiber were improved. The incorporation of silica nanoparticles was able to modify the compressive properties slightly, whereas the thermal properties were decreased explicitly. Hydrogen bonding between the carboxylic group of PLA and the silica bonded group affected the increment in mechanical properties of composites. However, the incorporation of coconut fibers in composites exhibited a rougher surface. In addition, beneficial distribution of silica nanoparticles and porosity in the nanocomposite foam, equivalent to neat PLA foam, could be obtained.
Influence of Asymmetric Rolling on the Deformation Textures, Grain Size and Mechanical Properties of B4C/Al Composite
Authors: Li Bing Feng , Li Qiu Lin , Liu Wei , Wang Zhen Hong
Published: September 2016

B4C/Al composite was a promising neutron absorb material. In this work, B4C/Al composite sheets were asymmetrically rolled and annealed. The asymmetric (ASR) condition was introduced by applying mismatched roll diameters with diameter ratios of 1.1, 1.2 and 1.3, respectively., while the symmetric rolling (SR) was used as the control experiment. Mechanical properties and microstructures of the composite were tested after cold rolling and annealing. Results showed that: ASR with small diameter ratio decreased the texture volume fraction in the B4C/Al composite, but when diameter ratio of ASR reached 1.3 new slip systems were actuated and the texture volume fraction started to increase. The average grain size of the aluminium matrix was smaller after ASR, and it decreased with the increasing diameter ratio. The hardness of B4C/Al composite after ASR was about 40% higher than the one rolled by symmetric rolling, proved that ASR is a promising way to enhance the properties of B4C/Al composite.
An Implementation of Analytical Boundary Simulation on Feedrate Scheduling during Semi-Finish Milling
Authors: Hendriko Hendriko
Published: September 2016

In five-axis milling, determining the continuously changing Cutter Workpiece Engagement (CWE) remains a challenge. All the feedrate calculation method that have been reported need a precise information about Cutter Workpiece Engagement. In this paper, the cut geometry was calculated using an analytical method called Analytical Boundary Simulation (ABS). This method was reported accurate and less expensive in term of calculation time. The cut geometry data was then used to calculate the instantaneous cutting forces. A new mechanistic force model was developed by taken into account the variation of axial depth of cut, the feedrate, the tool orientation, and the helical angle. Analytical boundary simulation and mechanisitic cutting force model were then used to optimize a semi finish machining process using feedrate scheduling. The applicability of the proposed method was verified experimentally and the result show that the calculated cutting forces of feedrate scheduling have a good agreement with those obtained from the experimental work.
Application of Taguchi Optimization on the Cassava Starch Wastewater Electrocoagulation Using a Bipolar Stainless Steel Electrode in the Presence Additive Electrolyte
Authors: Sudibyo  , Burhani Dian , Kusumaningrum Annisa , Apriyana Wuri , Aji R. Priyo Hartono , Fathnan Ashif A. , Rajani Ahmad , Syafarina Inna , Abka Achmad F. , Majid Nurhalis , Nurjaman Fajar
Published: September 2016

Optimization of tapioca wastewater treatment by electrocoagulation has been conducted. Taguchi design experiment was used to calculate the optimum condition. Electrode distance, an electrical resistance of the wastewater and time of operation were used as the parameters. The results show that the electrocoagulation using bipolar stainless steel electrode was able to treat the cassava starch wastewater. The maximum pollutant removal percentage was achieved by the electrical resistance of 60 ohms at 1.5 cm electrode distance for 30 minutes.
Multiphase Numerical Study of Ice Accretion on Circular Cylinders in Duplex Configuration
Authors: Virk Muhammad S.
Published: September 2016

Numerical study of atmospheric ice accretion on circular cylinders in duplex configuration has been carried out at different operating and geometric conditions. Analyses showed a difference in ice accretion on both cylinders, as streamline accumulated ice shapes were observed along front cylinder and irregular ice shapes were found along rear cylinder. Results also showed a change in accreted ice load and ice shape along rear cylinder with the change in distance between both cylinders. Parametric study at different droplet sizes and temperatures showed a variation in ice accretion. This prelimenary research work provides a useful base for better understanding and further investigation of atmospheric ice accretion on circular overhead conductors in duplex configuration, installed in cold climate of high north regions.
Mechanical Analysis of the Arm Lifting Rope of the Dynamic Compaction Machine
Authors: Li Huai Yong , Wang Su Jing , Guo Ying Xun , Huang Jian Hua
Published: September 2016

In this paper, the mechanics equation of the dynamic compaction machine arm frame is established based on the theory of statics, the arm lifting rope force is given, the influence of the wire rope force with relative position parameters changing is also discussed. The critical factors that affect the arm lifting rope force are identified. Compared the simulation and the test results, the major forces errors are less than 8%. The correctness of the theoretical study and simulation are verified. The research results could be used for the arm wire rope type selection of the dynamic compaction.
Study on the Radiosensitizing Applications of Gold Nanoparticles
Authors: Tsai Chang Shu , Hsiao Jou Kang
Published: September 2016

Citrate-coated gold nanoparticles (AuNPs) were prepared by using redox method and its characterization was studied thoroughly. In the preparation process, the varieties of factors were examined by TEM morphology, DLS zetasizer, XPS analysis and UV-Vis spectroscopy for evaluating their qualities and stability. The experimental results obtained under optimal condition, which are 100±5°C of reaction temperature, 4.5-6.4 of the pH value, 2-10 of molar ratio between trisodium citrate and tetrachloroauric acid, respectively. The fluorescent intensities of DCFDA-stain indicate the amount of generated ROS (reactive oxygen species) by AuNPs. The cell cycle for MDA-MB-231 human breast cancer cells exhibits S-phase arrest which can prevent mitosis. The radiosensitizing effect of AuNPs with 20 nm diameter in MDA-MB-231 was investigated by RCGG values (ratio of cell numbers in the G2/M phase to the G0/G1 phase, RCGG) and its radiosensitizing efficiency was ca. 2.29 to 3.75 fold. In this study, it was found that the radiosensitizing efficiency is related to the cytotoxicity by AuNPs. After the irradiation by x-ray to cells, the enhancement value in the presence of 20 nm diameter AuNPs were 17.2% for 3 Gy and 18.9% for 7 Gy respectively. Compared to the irradiated group alone, the enhancements values were 21.8% and 19.7, respectively.
Kinematic Theory of Spatial Rack Drives
Authors: Abadjieva Emilia
Published: September 2016

On the basis of performed vector analysis of spatial motion transformation of type rotation into translation is created a kinematic theory of this transformation type. Using the kinematic theory the basic kinematic-geometric characteristics of spatial rack mechanisms, applicable to their analysis and synthesis are initiated. These characteristics: kinematic cylinder of level, kinematic relative helicoids, and kinematic pitch surfaces are elements of kinematic geometry of the spatial rack drives
Dynamic Analysis on the Starting Process of First Conveyor’s Scraper Chain
Authors: Li Qiang , Zhang Ming Yu , Mao Jun
Published: September 2016

For the study of first conveyor chain dynamics behavior when it is started and seek the theory basis for the chain breakage on first conveyor, set up the mathematical model of the first conveyor and its scraper chain by using finite-element method. And then did the dynamics characteristic analysis between scraper chains with material, set up the differential equation. Took advantage of the mathematical model and the differential equation, and combined with the type of EBZ160 road header's technical parameters, did dynamic simulation. It draw a conclusion that during the start-up process the chain speed fluctuates a large range between, the maximum stress value on scraper chain is 1.15×104N appeared after 1s, chain tension adjustment time is about 10s, the biggest adjustment time is 12s.
Mechanical and Morphological Properties of Poly(Lactic Acid)/Bagasse Fiber Composite Foams
Authors: Nampitch Tarinee , Wiphanurat Chanon , Kaisone Thiti , Hanthanon Pran
Published: September 2016

This research attempted to prepare composite foams of PLA/bagasse fiber with various fiber content at 0, 5, 10, 15, 20 wt% and a fixed foaming agent with extra added 2 wt% for all composites. The mechanical properties and morphology of neat PLA and PLA/bagasse fiber composite foams were investigated. The tensile strength showed that the highest fiber content of 7 wt% was 45.27 MPa, while neat PLA was 25.63 MPa. Impact strength showed a decreasing trend with increasing fiber content. SEM analysis was important to reveal the phase of fiber and matrix for support to discuss the results trend of PLA and composite properties.
Study on Crack Propagation of a Bearing Inner-Ring under Cyclic Loading
Authors: Zheng Jie , Hu Ya Xiong
Published: September 2016

The performance of bearing has great influence on mechanical components and fatigue is one of the most important failure modes. However, the occurrence of crack is inevitable in the process of manufacture and usage. Research on characteristics of crack propagation is an important supplement and development to the traditional fatigue analysis method and test. The FE model of a bearing inner ring with a semielliptical crack is established in ABAQUS to carry out further analysis of crack propagation. The crack propagation characteristics with different initial crack size are analyzed and the energy changing law during crack propagation has been investigated under cyclic loading though FE calculation. The results provide valuable guidance for further study on fatigue crack propagation of bearings.
Research on Rail Rolling Contact Fatigue Life of Curve Negotiation
Authors: Fu Li Hua , Yang Jian , Zhang Yue , Song Hua , Li Wei
Published: September 2016

Wheel/rail rolling contact fatigue is one of the most complicated and urgent problems of the key techniques of railway system, and seriously influences the operational safety. A finite element (FE) model of wheel/rail rolling contact of curve negotiation is established based on the single-layer track dynamic model, which is considering the effect of rail straightening residual stress, the actual wheel tread and the elastic support of rail track bed. The nominal stress approach is applied to study the rail rolling contact fatigue life with two residual stress-state conditions. Results show that the distribution of rolling contact fatigue life on the surface of rail head presents obvious peaks and troughs with a specific wavelength in the longitudinal direction, which are approximately corresponding to the peaks and troughs of the contact force. Meanwhile, the rail rolling contact fatigue life firstly increases and then decreases while the running speed varying from 150 to 250 km/h, and decreases while the axle load varying from 13 to 17 tonnes which do not fully show a linear law.
Design and Test of 4LMD-160 Hemp Harvester
Authors: Zhou Yang , Shen Cheng , Li Xian Wang , Zhang Bin , Huang Ji Cheng , Tian Kun Peng
Published: September 2016

Based on the characteristics of domestic hemp cultivation and the previous designs and research, a hemp harvester that is suitable for Chinese hemp-growing areas was designed. The optimal cutting parameters of hemp stalks, which can provide a reference for prototypes, are obtained by the bench test: the average cutting speed is 1.5m/s and the stalks feeding speed 0.5m/s. It is showed by the field trials of prototypes that the cutting rate of prototypes can reach 92.0%, and the stalks conveying rate can reach 85.0%, and the average production rate is 0.22 hm2/h. All the performance indicators have reached the design requirements.
Multi-Scale Amplitude Modulation Effect of Wind Speed Random Fluctuation
Authors: Wan Jie , Ren Guo Rui , Hao Wen Bo , Liu Jin Fu , Yu Da Ren , Zhao Lei Lei , Xu Bing Liang , Sun Cheng Zhi , Zhao Zhi Gang , Lei Cheng Rui
Published: September 2016

Wind power is widely used as a type of clean and renewable energy source in recent years. However, large-scale wind power penetration brings lots of challenges due to the uncertainty of wind speed. As a result, the research of wind speed uncertainty plays an important role in large scale wind power integration. In this paper, the multi-scale amplitude modulation effect of wind speed random fluctuation is found based on actual wind speed data. And the physical mechanism of multi-scale characteristics are presented from the perspective of turbulence. This research has both certain physical academic meaning and engineering application value in wind speed uncertainty research.
The Key Technologies of the Hydraulic Test of 2m×2m Supersonic Wind Tunnel
Authors: Shi Yan , Liu Zong Zheng , Yang Wen Guo
Published: September 2016

The hydraulic test on the main circuit of the 2m×2m supersonic wind tunnel is necessary for testing the design and manufacturing quality for the safe running . The finite element stress analysis of the main circuit in the load cases of hydraulic test was introduced. According to the simulation result, some important points outside and inside of the tunnel were selected as the monitoring places. To get the necessary result, some of the resistance strain chips were arranged in the water and the corresponding sticking process was considered as the in-water process was first introduced in the test. The response functions of structure stress under external loads were obtained. The result shows that the stress and deformation is consistent with the simulation in quantity and trend. The result also indicates that the load case processing method used in the FEM are reasonable, and the maximal stress value and displace value is allowable for the future running of the wind tunnel.
Sensorless Speed Control of Induction Motors with Method of Least Squares
Authors: Otkun Özcan
Published: September 2016

In this study, speed control of induction motors was performed as sensorless with Method of Least Square + Scalar Control (MLS+SC) model. For the analysis of method, two other methods SC and PI + SCI were also used and these methods were modeled with Matlab / Simulink software. When compared the simulation results obtained from this method, it is understood that the proposed method is usable.
Development of the Field of Wheat Plant Protection Precision Spraying Robot Control System
Authors: Sun Xuan , Zhang Yan , Tang Cheng Long , Zhao Hong Hua , Ai Chang Sheng
Published: September 2016

In view of shortcomings of the wheat field spraying, such as low accuracy, liquid waste, spraying uneven and land pollution, developed with C310 industrial controller as the core field of wheat plant protection precision spraying robot control system. The system according to the sensor detects the plant protection robot walking speed and liquid pressure, dynamic adjusting nozzle spray amount, in order to achieve accurate, efficient and intelligent spraying. Through test, actual and theory of the amount spraying quantity error is less than 5%, the result meets the requirements of the job, so that this scheme is feasible.
Design of the Two-Wheeled Self-Balance Vehicle
Authors: Hua Yang , Yang Zi Jian
Published: September 2016

Through the analysis of the motion mode of the two-wheel self-balance vehicle, a system of a two-wheel self-balance vehicle is presented in this paper. This system takes the chip STM32 as the controller, and it uses the MPU-6050 to collect the acceleration and angular velocity date of the vehicle. Then using the software filtering and quaternion fusion algorithm to know the motion of the vehicle. The MCU handles the data through combining PID algorithm and outputs PWM to L298 to motor two DC motors to control the vehicle’s posture.
The Technologies for Remote Reconfiguration of Artificial Intelligence of Robotic Systems in Case of Mission or Driving Conditions Change
Authors: Ignatov Alexander , Ivchenko Valeriy , Krug Petr , Matyukhina Ekaterina , Pavelyev Sergey
Published: September 2016

This report considers the creation of a controller intended for reconfiguring the artificial intelligence of robotic vehicles. The functional structure of hardware-reconfigurable digital module for intellectual control of robotic vehicles is proposed and further interaction between its functional modules and remote support center in different situations requiring reconfiguration is concerned. The procedures of self-check and self-testing of the hardware-reconfigurable digital module for intellectual control of mobile space-based robots are described, which are necessary to ensure reliability of reconfiguration.
Teaching System of Arc Welding Robot Based on VB
Authors: Hu Min
Published: September 2016

I designed the teaching system of the arc welding robots with the mixed programming method based on VB and MATLAB. I will illustrate it from the following aspects, that is, developing guiding theory, general structures, key technology and concrete application examples.
ZMP Based Motion Stability Analysis of a Wheeled Humanoid Robot with Bending Torso
Authors: Xia Si Yu , Zhan Qiang , Rahmani Ahmed
Published: September 2016

Motion stability is the most important issue to be considered when designing a wheeled humanoid robot with bending torso, as it’s easy to capsize because of its high center of gravity. With ZMP (Zero Moment Point) method the motion stability of a wheeled humanoid robot with bending torso was analyzed. At first, the chain rule was used to model the kinematics of the wheeled humanoid robot, and then the process of calculating the ZMP of the robot was presented. With MATLAB the motion stability of the humanoid robot in three typical conditions is simulated and analyzed, and the simulation results were used to optimize some parameters of a wheeled humanoid robot we are designing.
Lift Augmentation between Passive and Active Vortex Generator
Authors: Zulkefli Nur Faraihan , Sahwee Zulhilmy , Mohd Nur Nurhayati , Mohd Fazil Muhamad Nor Ashraf , Mohd Shukri Muaz
Published: September 2016

This study was conducted to investigate the performance of passive and active vortex generator on the wing’s flap. The triangular shape of passive vortex generator (VG) was developed and attached on the wing’s flap leading edge while the plasma actuator performed as active vortex generator. The test was carried out experimentally using subsonic wind tunnel with 300 angles extended flap. Three different types of turbulent flow; with Reynolds number 1.5 x105, 2.0 x105, and 2.6x105 were used to study the aerodynamics forces of airfoil with plasma actuator OFF. All Reynolds number used were below 1x106. The result indicated that airfoil with plasma actuator produced higher lift coefficient 12% and lift-to-drag ratio 5% compared to airfoil with passive vortex generator. The overall result showed that airfoil with plasma actuator produced better lift forces compared to passive vortex generator.
Study on Methods for Improving LMD End Effect
Authors: Wang Feng Wei , Zhou Yun Qi , Zhou Shi Jian
Published: September 2016

The LMD is a new method for analyzing non-stationary signals. It can decompose complicated signals into a set of single-component signals, each of which has physical sense. But peforming the LMD will produce end effects which make results distortion. After analyzing the reasons for these, the ariticle takes adcantage of three normal methods to overcome the end effects of LMD. Experimental results of three models showed that the method of self-adaptive waveform matching was better than other methods.
Research on Positioning Algorithm Based on the Gaussian Distribution Function and Partial Estimation of the Fusion Theory
Authors: Ma Chun Long , Li Nan , Li Ying
Published: September 2016

WSN’s practical application has high level of spontaneity in positioning information and is susceptible to the outside interference, which may lead to the reduction of positioning accuracy. This paper studies Gauss distribution function, the single sensor batch estimate fusion theory and RSSI positioning technique based on the design of the CC2430/1 wireless sensor network positioning system hardware and puts forward a kind of positioning algorithm of WSN based on the Gauss distribution function and batch estimation fusion theory. The algorithm first uses Gauss model to analyse RSSI, reject RSSI value of a small probability event through the Gauss model, and then applies single sensor batch estimation fusion theory to estimate in batches the fushion theory’s calculation of the RSSI value of high probability events as the RSSI value of the final positioning operation. Experiments show that using this algorithm, the positioning precision of the system can be improved to be within 0.5 meters.