bluuebunny/crossref_metadata_2025 huggingface dataset:
Preparation and Performance of Phase Change Materials of PEGA-g-CEA
Authors: Guo Jing , Yu Chun Fang , Mu Si Yang , Zhang Hong , Gong Yu Mei
Published: January 2015

Polyethylene glycol acrylate-grfat-Cellulose-acrylate (PEGA-g-CEA) has been synthesized as side-chain-type solid-solid phase change materials for thermal energy storange through graft copolymerization. The composition and structure of the grafts and cellulose, phase transition properties and morphology of grafts were investigated by Fourier transform infrared spectrometer (FTIR), differential scaanning calorimentry (DSC) and optical microscopy. The results show that the polyethylene glycol (PEG) successfully grafted onto the cellulose macromolecule, and the solid-solid phase change materials with a certain phase transformation ability were obtained through this experiment.
Effect of the Enzymatic Hydrolysis on Starch Properties
Authors: Li Jing
Published: January 2015

In this article, corn starch was modified by α-amylase with different hydrolytic time (30, 60, 90 and 120 min) and the effects of modification technology on its properties of viscosity, compound structure and mechanical were studied. The result showed that structure of modified starch was conserved with hydrolytic time increased, whereas tensile strength were increased and viscosity was decreased. The performance of modified starch that hydrolyzed by 30 min was better than others and pinholes were generated in the surface of starch granules
Numerical Simulation and Analysis of Hydraulic Torque Converter Base on Finite Element
Authors: Wen Qing Bo , Xu Wei
Published: January 2015

This article make numerical simulation and analysis to hydraulic torque converter model base on finite element. The model is build by CATIA (model software). Application of ADINA (finite element software) calculate and analysis the single fluid-passage in pump impeller, then use ANSYS Workbench (finite element software) analysis structural strength and modal of hydraulic torque converter. Results showed that the calculation is accordant with hydraulic torque converter working situation that proved the feasibility and the effectiveness of the numerical simulation. So numerical simulation can provide certain theoretical reference for the design of the hydraulic torque converter.
Influence of Spray Parameters on Sliding Wear Properties of HVOF Sprayed Fe-Based Amorphous Coatings
Authors: Liu Guang , Zheng Zi Yun , Jia Li , Ma Bing , Cui Lang , Ling Guo Ping
Published: January 2015

Amorphous powders of Fe-10.7%W-4.5%Cr-4.1%B-3.6%Ni-3.5%Si-2.1%Mo-1.2%C-0.7%Mn were sprayed under six sets of spraying parameters using high velocity oxy-fuel spraying. Phase structure of coatings as well as microstructure is found to be strongly affected by spraying parameters. Sliding wear resistance of amorphous coatings benefits significantly from less porosity and oxides. In addition, evidence correlation is found between amorphous content and wear resistance of coatings. Coating with the best wear resistance exhibits the wear rate of only 2.84×10-6 mm3/(N·m), equals 1.70% and 217% of cast 316L stainless and HVOF-sprayed Cr3C2-NiCr coating respectively.
The Analysis for Chemico-Mechanical Practices Using in Polymer Material Machining
Authors: Kong Ling Bo , Zhao Gang , Zhang Xian
Published: January 2015

The polymeric composites materials (PCM), having specific characteristic self-lubrication, have got the name-the materials antifrictional self-lubrication (MAS). In compositions MAS except matrixes-of the thermoreactive resins are included special fillers. The structure material in defines the characteristic received products. For the reason increasing working characteristic PCM necessary study of the influence of the thermodynamic conditions centrifugal litho on shaping the structure PCM. For study of the influence technological parameters is required corresponding to equipments. The analysis of phenomena taking place when polymers interact with aggressive mediums has been made. Corresponding experimental research has been done and methods to direct changes of proceed material have been developed.
Large Equipment Hoisting Balance Beam Structure Optimization
Authors: Sun Ai Ping , Zhang Cheng Xuan , Wang Feng Yong , Wang Zhong
Published: January 2015

This Article analyzed the construction of hoisting operation and application of the various structure characteristics of the balance beam, illustrates the balance beam design technical route, the balance beam in hoisting load under the calculation of action stress criterion, and the balance beam structure optimization design method, used for the manufacture, the construction enterprise balance beam seriation, standardization, provides the basis.
A Novel Rotor Temperature Estimation Method Base on Dq-Axis Flux Linkage Observation
Authors: Cao Yan Ling , Cao Ping
Published: January 2015

This paper presents a method for determining the rotor temperature of an electric motor by observing the dq-axis flux linkage. A reference dq-axis flux linkage is obtained at a defined rotor temperature. The difference between calculated and reference flux in the d-axis is supposed to be caused by temperature, therefore the temperature can be back-calculated according to the permanent magnet temperature characteristic. The proposed method was confirmed to be correct and effective by the test results.
Analysis of Unsteady Seepage Behavior of Rumei High Core Wall Rockfill Dam by FEM
Authors: Shen Zhen Zhong , Zhong Liang , Chai Xian Dun
Published: January 2015

The Rumei core wall rockfill dam hydropower station is in Lancang River in the Mangkang county of the Tibet autonomous region with maximum height of 315m and crest length of 666.2m. Due to the high core wall rockfill dam has been more than 300m high, water level sudden drawdown of the unsteady seepage condition shall be taken into consideration, according to the given water level drop speed (5m/d) calculate condition, analysis of the seepage field distribution of the different water level, free surface of different time, each material partition of the dam and foundation soil seepage gradient, etc are given. The results showed that the free surface of the upstream dam shell rockfill body dropping fast than the water level dropping speed of the reservoir. The seepage gradient of the upstream shell is very small, which will not cause adverse effect on the upstream dam slope stability. The free surface of the downstream dam shell rockfill body changes little, which will not cause adverse effect on the downstream of the dam slope stability. As the water level falls, the free surface of the core wall dropping speed is slow, far less than the water dropping speed of the reservoir. In the process of emptying reservoir, the free surface of the core wall remains in a high position, which should cause enough attention.
An Evaluation System for Seismic Retrofitting Schemes of an Existing Building Using Energy Dissipation Device
Authors: Li Xi Qing , Liu Lin
Published: January 2015

Focusing on the green renovation project of Shendu Building in Shanghai, China, an evaluation system is developed for the comparison of a variety of seismic control schemes for seismic retrofit of the building. A three-dimensional evaluation model is developed in MATLAB to represent the dynamic features of the structural system of the building, and nine key evaluation indices are defined for the evaluation purpose from a global view of both control efficiency and costs. The complete procedure of designing control schemes based on the retrofitted benchmark structure is presented, which may be helpful for researchers and engineers in easily testing various control schemes by using this evaluation system.
Combination of Conflicting Evidence Based on Relative Entropy
Authors: Wu Shang , Chen Guo Chu
Published: January 2015

Combination of conflicting evidence usually resulted in illogical outcome. In order to solve this problem, an approach to acquire evidence reliability based on relative entropy was proposed by researching the evidence theory and relative entropy. Firstly, the weights of evidences were calculated by evidence distance, reference evidence was obtained by weighting and meaning. Then relative reliabilities were achieved by calculating the relative entropy between original evidence and reference evidence. In the end, final outcome was achieved by D-S composition. This method can commendably extract information in the conflict evidences. The result of the simulation proves it well.
Risk Assessment of the Debris Flow Gully in Tibet Southeast
Authors: Xu Jiang , He Qiang , Wang Pei Qing , Lu Lu , Chen Dong Dong
Published: January 2015

Risk assessment of debris flow is the core content and decision-making basis for debris flow disaster forecasting and the disaster prevention work. It is a comprehensive analysis for the geological, climate, rainfall, historical disaster activities and human engineering activities in some certain areas which may be in danger conditions, so as to determine the occurrence probability of debris flow. In this study, risk assessment model of the debris flow gully in Tibet southeast area is established. According to the correlation ratio of risk assessment indexes and the debris flow occurrence, the assessment indexes can be divided into three levels and defined with some certain values according to the correlation of debris flow occurrence. Finally, the risk assessment of debris flow gully in Tibet southeast area is conducted, and model outputs achieve a good result.
Preparation of High Security N-Octadecane MicroPCMs by In Situ Polymerization
Authors: Song Xiao Qiu , Duan Yu Ping , Li Yue Xia
Published: January 2015

N-octadecane microcapsules phase change materials(MicroPCMs) were prepared by thein-situ polymerization method using n-octadecane as core materials, urea-formaldehyde resin as shellmaterials respectively. Melamine–formaldehyde (MF) microcapsules have been widely applied inmany functional materials. Free formaldehyde content are important safetyfactor determining the survival of the microcapsules during fabrication andapplication. In this study, the formaldehyde content of n-octadecane MicroPCMs decrease to 0.35g/Kg which even lower than the standard EuropeanE3 level (0.6g/Kg) through regulation the synthesis conditions such as urea/formaldehyderatio of weight from 1:2 to 1:1.6, urea batch feeding three times ,curing endpH value to 1.0-1.5,reactive time extend to 4h,addition melamine and PVA.
Movement Analysis for the Picking Mechanism of the Opposite-Two-Rows Type Cotton-Picker
Authors: Li Qi , Yuan Jun Ting , Song Qiu Hong
Published: January 2015

Automatic cotton picker was widely used in contemporary cotton production operations, moreover, the farmers prefer to small cotton picker, and picking mechanism is the most important parts of cotton picker, therefore, the research on the movement of picking mechanism is very important. This paper introduced a new kind of the opposite-two-rows type automatic cotton picker, analyzed its operating principle, and made a theoretical derivation of the equations of motion of the picking mechanism, the obtained results can provide theoretical guidance for the design of picking mechanism of cotton picker.
The Transmission Design of the Seven-Speed Planetary-Gear AT Based on the Lever Method
Authors: Fan Yi
Published: January 2015

Based on the motion equation of the planetary gear trains, this paper proposes an improved lever method on the original lever method. The structure and the transmission scheme of Toyota A761E’s AT were analyzed by using the improved lever method. Aiming at the deficiencies of the original structure, a kind of new 7-speed AT was designed. By only using 6 shifting actuators, it not only simplifies the automatic transmission’s structure and widens the speed range, but also improves the shifting smoothness and achieves the effects of energy saving and environmental protection.
The Design of Wearable Sub-Health Monitoring System
Authors: Ma Hao , Fan Xiu Juan , Yin Xiao Yun
Published: January 2015

This paper describes a wearable technology sub-health monitoring system based on the description of the system and physiological signals by Zigbee module sub-health data collection, acquisition and transfer process, as well as PC using BP neural network for sub-health algorithm model state assessments; simulation tests to verify the rationality and practicality of the system. In short, the system has a simple and accurate calculation of benefits for sub-health can quickly assess and provide comprehensive, objective and scientific decision-making reference, extensive prospects.
A Design of Output Power Adaptation Method for Ultrashort Wave Diathermy Apparatus
Authors: Wang Yun Guang , Fan Xu , Cheng Hai Ping , Chong Xiao Chen
Published: January 2015

The design of output power adaptation method is applied to ultrashort wave apparatus which cooperate with output power collection system to make the adaptation work automatically. Three methods, which are approximation method, global test contrast method and improved approximation method are put forward, and fully experiment was executed. As a result the approximation method is the most appropriate, which could achieve the function of automatic detection and adaptation, and real time tuning in the treat process. The method improve the efficiency of energy transfer, at the same time enhance the treatment effect and make the machine more intelligent and convenient.
Automobile Sensor Technology Development and Application Research
Authors: Liu Ji
Published: January 2015

This paper introduces the developing course of auto sensor and impetus, automotive electronic system in various sensors practical level, gives the best technical index, and the current sensor in the application of automotive electronic control system, and shows the development trend of the automotive sensors and the forecast, points out the development direction of modern sensor technology is integrated and intelligent, likely has a huge market share in the future several kinds of new sensors, and finally the development of the automotive sensors are described briefly and the market forecast.
A Novel Deployable Emergency Bridge
Authors: Wu Xin Yan , Huang Jian Jun , Luo An Ping
Published: January 2015

This paper explores the design of a new type of deployable bridge system composed of a scissor-like deployable element, the walking-slab, the joint, sleeve-pole,cable and lock-device, driving cable etc. Both geometric principles and dynamic analysis are discussed. Then, a 2-m scaled prototype is developed, which was then experimentally tested for dynamic properties. Finally, the results of experiment are in good agreement with the dynamic analysis prediction, which validates the efficiency of the design for the deployable bridge. The primary novelty is scissor-like element of the deployable emergency bridge, which is found to enhance the stiffness of the entire deployable to overcome the natural or artificial barriers.
Study on Coordination Assessment of Fixed Facilities’ Capacity in Railway Marshalling Yards
Authors: Jiao Zhi Da , Gan Chun Hui
Published: January 2015

According to the development status of fixed facilities in railway marshalling yards and the relationships among the different fixed facilities, the indicator system about the coordination assessment of fixed facilities’ capacity in railway marshalling yards was established. The C2R model of data envelopment analysis (DEA) was used in the coordination assessment, and the model was solved with MATLAB programming. The result of the analysis is generally consistent with the actual situation.
Data Processing in Risk Research on Non-Profit Government Investment Project of Agent Construction System Based on FATP
Authors: Wu Yun Na , Hu Yi Qi , Chen Kai Feng
Published: January 2015

The non-profit government investment project (Non-profit Government Investment Project, hereinafter referred to as NGIP) own huge investment, large-scale, long cycle, involving a wide range of social benefits and it is related to the country's macroeconomic development, in its implementation period does not great certainty. Under Agent Construction System NGIP has its own risk, the paper will be based on Fuzzy Analytic Hierarchy Process (Fuzzy Analytic Hierarchy Process, FAHP) establish NGIP risk assessment model, through data processing the final use of the evaluation model for empirical analysis to achieve the agent system NGIP risk assessment.
A Research on High-Precision Strain Measurement Based on FBG with Temperature Compensation
Authors: Wang Zi , Zhang Xiang , Tan Yue Gang , Li Tian Liang
Published: January 2015

FBG (Fiber Bragg Grating) is a new type of optical passive device which can be used in sensing field. This paper demonstrates the feasibility and effectiveness of FBG as the new method of strain measurement, and improves the measuring precision. Based on the strain sensing property of FBG, the study adopts the differential method of double FBGs to make temperature compensation, and conduct the contrast experiment with resistance strain chip. The experimental results show that strain measurement based on FBG agrees well with theoretical calculation. The measurement error: no more than 1%, linear fitting correlation coefficient: almost 1, linearity: 0.17%, sensitivity: 7.92, hysteresis error: 0.347%, repeatability error: 0.333%. The results show FBG’s performance are superior to resistance strain chip, especially in aspect of measuring precision. Therefore, we can conclude that FBG is a feasible and effective method of strain measurement.
High Temperature Cyclic Oxidation of Coatings on Ni-Based Superalloys
Authors: Kianicová Marta , Trník Jaroslav
Published: January 2015

The cyclic oxidation behavior of diffusion protective Al and SiAl coatings used on Ni-superalloy namely MAR-M247 at 1100°C for 38 cycles in the air under cyclic heating and cooling conditions has been investigated in the present work. Cyclic oxidation test was carried out in laboratories of Silesian University of Technology in Katowice, Poland. Cylindrical samples were casted from mentioned alloy in factory PBS Velká Bíteš, a.s., Czech Republic. The oxidation kinetics of coated and uncoated superalloys was analyzed by thermo-gravimetric technique. It was observed that all the coated and bare superalloys obey a parabolic rate law of oxidation. SEM/EDX techniques were used to analyses the oxidation products of all samples. MAR-M247 with Al coating showed good oxidation resistance due to the formation of a compact and adhesive thin Al2O3 scale on the surface of the coating during oxidation. SiAl coating showed equally good oxidation resistance. The oxidation progress of uncoated alloy MAR-M247 was very fast.
Zinc-Aluminum Coatings Obtained by Hot Dip Method on High Strength Steel for Link Chains
Authors: Liberski Piotr , Mendala Jacek
Published: January 2015

In the paper the author present the results of tests on obtaining zinc-aluminum coatings on the 23MnNiCrMo52 steel used for produce coil chains for the mining industry. The coatings was obtained in the eutectic zinc aluminum bath. The growth kinetics of the coatings has been defined, their structure has been developed and the chemical composition of particular structural components of the coating has been established. It has been determined that the obtained coatings are continuous and uniform and their morphology not depends on the chemical composition of the steel.
Thermal Analysis Results and the Theoretical Determination of Solidus and Liquidus Temperatures for the Grain Oriented Electrical Steel
Authors: Gryc Karel , Smetana Bedřich , Janiszewski Krystian , Žaludová Monika , Tkadlečková Marketa , Socha Ladislav , Michalek Karel , Válek Ladislav
Published: January 2015

This paper is devoted to the comparison of theoretically defined solidus and liquidus temperatures based on above mentioned theoretical methods with the results of high-temperature thermal analysis carried out on two devices (Netzsch STA 449 F3 Jupiter; Setaram SETSYS 18TM). On large samples (23 g), the method of direct thermal analysis was applied. On small samples (200 mg), the experiments using differential thermal analysis were realized. It was found out that the solidus and liquidus temperatures for the studied steel grade can vary in dependence on the used determination method. The used methodology of thermal analysis is fully reproducible, and the these thermo-analytical results can be considered as necessary for the correct setting of critical parameters in applied research on the process of steel casting.
Явные вложения конечных абелевых $p$-групп в группу $\mathcal J(\mathbb F_p)$
Authors: Kiselev Denis Dmitrievich
Published: January 2015

Для каждой конечной абелевой $p$-группы построено ее явное вложение в группу Дженнингса $\mathcal J(\mathbb F_p)$.
Библиография: 4 названия.
Estimation of PM10 concentrations over Seoul using multiple empirical models with AERONET and MODIS data collected during the DRAGON-Asia campaign
Authors: Seo S. , Kim J. , Lee H. , Jeong U. , Kim W. , Holben B. N. , Kim S.-W. , Song C. H. , Lim J. H.
Published: January 2015

Abstract. The performance of various empirical linear models to estimate the concentrations of surface-level particulate matter with a diameter less than 10 μm (PM10) was evaluated using Aerosol Robotic Network (AERONET) sun photometer and Moderate-Resolution Imaging Spectroradiometer (MODIS) data collected in Seoul during the Distributed Regional Aerosol Gridded Observation Network (DRAGON)-Asia campaign from March to May 2012. An observed relationship between the PM10 concentration and the aerosol optical depth (AOD) was accounted for by several parameters in the empirical models, including boundary layer height (BLH), relative humidity (RH), and effective radius of the aerosol size distribution (Reff), which was used here for the first time in empirical modeling. Among various empirical models, the model which incorporates both BLH and Reff showed the highest correlation, which indicates the strong influence of BLH and Reff on the PM10 estimations. Meanwhile, the effect of RH on the relationship between AOD and PM10 appeared to be negligible during the campaign period (spring), when RH is generally low in northeast Asia. A large spatial dependency of the empirical model performance was found by categorizing the locations of the collected data into three different site types, which varied in terms of the distances between instruments and source locations. When both AERONET and MODIS data sets were used in the PM10 estimation, the highest correlations between measured and estimated values (R = 0.76 and 0.76 using AERONET and MODIS data, respectively) were found for the residential area (RA) site type, while the poorest correlations (R = 0.61 and 0.68 using AERONET and MODIS data, respectively) were found for the near-source (NS) site type. Significant seasonal variations of empirical model performances for PM10 estimation were found using the data collected at Yonsei University (one of the DRAGON campaign sites) over a period of 17 months including the DRAGON campaign period. The best correlation between measured and estimated PM10 concentrations (R = 0.81) was found in winter, due to the presence of a stagnant air mass and low BLH conditions, which may have resulted in relatively homogeneous aerosol properties within the BLH. On the other hand, the poorest correlation between measured and estimated PM10 concentrations (R = 0.54) was found in spring, due to the influence of the long-range transport of dust to both within and above the BLH.
Technical Note: A novel parameterization of the transmissivity due to ozone absorption in the k-distribution method and correlated-k approximation of Kato et al. (1999) over the UV band
Authors: Wandji Nyamsi W. , Arola A. , Blanc P. , Lindfors A. V. , Cesnulyte V. , Pitkänen M. R. A. , Wald L.
Published: January 2015

Abstract. The k-distribution method and the correlated-k approximation of Kato et al. (1999) is a computationally efficient approach originally designed for calculations of the broadband solar radiation at ground level by dividing the solar spectrum in 32 specific spectral bands from 240 to 4606 nm. Compared to a spectrally-resolved computation, its performance in the UV band appears to be inaccurate, especially in the spectral intervals #3 [283, 307] nm and #4 [307, 328] nm because of inaccuracy in modelling the transmissivity due to ozone absorption. Numerical simulations presented in this paper indicate that a single effective ozone cross section is insufficient to accurately represent the transmissivity over each spectral interval. A novel parameterization of the transmissivity using more quadrature points yields maximum error of respectively 0.0006 and 0.0041 for interval #3 and #4. How to practically implement this new parameterization in a radiative transfer model is discussed for the case of libRadtran.
Development and validation of inexpensive, automated, dynamic flux chambers
Authors: Almand-Hunter B. B. , Walker J. T. , Masson N. P. , Hafford L. , Hannigan M. P.
Published: January 2015

Abstract. We developed and validated an automated, inexpensive, and continuous multiple-species gas-flux monitoring system that can provide data for a variety of relevant atmospheric pollutants, including O3, CO2, and NOx. Validation consisted of conducting concurrent gas-phase dry-deposition experiments, using both dynamic flux chambers and an eddy-covariance system, in a grassy clearing in the Duke Forest (Chapel Hill, NC). Experiments were carried out in June and September under a variety of meteorological conditions. Ozone-deposition measurements from the two methods matched very well (4–10% difference in mean flux rate) when the leaf-area index (LAI) inside the chambers was representative of the average LAI in the field. The dynamic flux chambers can be considered an accurate measurement system under these conditions.
Representações Docentes sobre as Formas de Socialização e as Possibilidades de Aprendizagem dos Alunos Indígenas
Authors: Novaro Gabriela
Published: January 2015

Neste artigo são apresentados alguns resultados de um trabalho realizado nos últimos anos sobre as escolas com população indígena na Argentina. Esse trabalho esteve vinculado a distintos espaços institucionais: a Universidade de Buenos Aires, o Ministério da Educação e alguns sindicatos docentes. Procura-se caracterizar as representações dos professores sobre os alunos indígenas, dando-se atenção a suas concepções sobre dois aspectos centrais: as formas de socialização e as possibilidades de aprendizagem desses alunos. Ao mesmo tempo, o artigo apresenta reflexões sobre as prioridades, possibilidades e obstáculos para o exercício da docência em contextos de diversidade cultural e lingüística. Por fim, e com base nas reflexões desenvolvidas, são propostos alguns critérios a serem considerados na definição da política educacional.
Índios Misturados: Historicidade e etnicidade Xokleng
Authors: De Oliveira Priscila Enrique
Published: January 2015

Conforme a ocupação do território brasileiro se efetivava em direção ao Sul, mais intensos se tornavam os conflitos entre brancos e índios. Inseridos neste contexto estavam os Xokleng, conhecidos então como Botocudos de Santa Catarina, que ocupavam desde a região de Palmas no Paraná até o Rio Grande do Sul. Com o surgimento do SPI alguns de seus funcionários se dirigiram para Santa Catarina para efetivar a pacificação destes índios. Assim, em 1914, Eduardo L. S. Hoerhan, acompanhado por não índios e Kaingang do Paraná, transferidos compulsoriamente, estabelecem um contato pacífico com os Xokleng. A partir de então, gradativamente estes índios passaram habitar o aldeamento, fundado oficialmente em 1926 com o nome de P.I. Duque de Caxias. A partir deste contato, estes índios vivenciaram transformações em seu universo simbólico e material. O contato inter-étnico os obrigou a criar novos fatores de identificação.
Antropologia Sócio-Cultural Hoje  Uma visão
Authors: Boskovic Aleksandar
Published: January 2015

Este artigo oferece uma desconstrução da idéia de crise da antropologia, ligando-a com um modo de pensar em moda na virada do milênio, mas que recebeu pouco apoio na prática. Argumenta-se que esta noção de crise só pode ser aplicada a alguns segmentos da antropologia anglo-americana, não à disciplina como um todo. O artigo também inclui uma apresentação de alguns dos mais importantes debates e questões terminológicas presentes nos séculos 19 e 20, com ênfase especial no funcionalismo. Um dos argumentos é que algumas das críticas recentemente popularizadas da disciplina devem ser contextualizadas; sua relação com o colonialismo, por exemplo, dado que o papel do antropólogo neste empreendimento foi na verdade muito limitado. O artigo apresenta cinco grupos de temas cruciais para os quais a antropologia contemporânea se volta e sobre os quais algumas das pesquisas mais interessantes estão sendo feitas. Eles são: questões de identidade; pesquisas sobre o corpo; consumo e cultura material; estudos sobre espaço e hibridismo; mídia e cultura popular. Finalmente, advoga-se que a antropologia social e cultural desenvolveu-se muito desde 1911, alcançando um ponto em que pode servir como uma ferramenta poderosa para o entendimento de todas as complexidades do mundo contemporâneo.
PRODUÇÃO DE SUCO DE ABACAXI OBTIDO A PARTIR DOS RESÍDUOS DA INDÚSTRIA CONSERVEIRA
Authors: BORGES CAROLINE DELLINGHAUSEN , CHIM JOSIANE FREITAS , LEITÃO ANGELITA MACHADO , PEREIRA ELISABETE , LUVIELMO MÁRCIA DE MELLO
Published: January 2015

O presente estudo objetivou o desenvolvimento de suco de abacaxi elaborado a partir dos resíduos das indústrias de conserva da região de Pelotas, Rio Grande do Sul (Brasil). O processamento do suco-base a partir da obtenção das cascas, centros e aparas da fruta consistiu das etapas de branqueamento, prensagem e filtragem. A partir do suco-base foram desenvolvidas formulações com diferentes percentagens de sacarose e adição ou não de corante. A formulação com 7,2% de sacarose obteve maior índice de aceitação (80,8%). Conclui-se que é viável a elaboração de suco de abacaxi a partir de resíduos de sua industrialização. PRODUCTION OF PINEAPPLE JUICE OBTAINED FROM THE RESIDUES OF THE CONSERVE INDUSTRY Abstract The aim of the present study was the development of pineapple juice elaborated from the residues of the conserve industries of Pelotas region, Rio Grande do Sul (Brazil). The base-juice processing from the obtention of husks, centers and shavings of the fruit consisted of the stages of bleaching, pressing and filtering. From the base-juice formulations were developed with different percentages of saccharose and the addition or not of colorants. The formulation with 7.2% of saccharose obtained higher acceptation index (80.8%). It was concluded that the elaboration of pineapple juice from its industrialization residues is viable.
AVALIAÇÃO DE PARÂMETROS DE QUALIDADE EM AGUARDENTES DE CANA PRODUZIDAS NO ESTADO DA PARAÍBA
Authors: LIMA ANA KATARINA DOS SANTOS , NÓBREGA IAN CARNEIRO DA CUNHA
Published: January 2015

Parâmetros de qualidade de 10 marcas comerciais de aguardente de cana, produzidas no Estado da Paraíba, foram avaliados tendo como referenciais os padrões estabelecidos pelo Ministério da Agricultura brasileiro (graduação alcoólica, acidez volátil e cobre). Apenas duas marcas de aguardente de cana apresentaram graduação alcoólica de acordo com os valores especificados nos rótulos. Todas as marcas analisadas enquadraram-se nos padrões de acidez volátil, embora uma tenha apresentado valor relativamente elevado. A concentração de cobre na mesma amostra superou em 70% o limite tolerado pela legislação (5 mg/L), sugerindo que a alta acidez volátil contribuiu para maior arraste de cobre para o destilado. Nas demais marcas, a concentração média de cobre foi de 2,5 mg/L. Verificouse a necessidade de implantação de melhoria nos sistemas de controle internos das destilarias para que os produtos atendam os padrões estabelecidos pela legislação. ASSESSMENT OF QUALITY PARAMETERS OF BRAZILIAN SUGAR CANE SPIRITS PRODUCED IN THE STATE OF PARAIBA Abstract Quality parameters of 10 commercial brands of sugar cane spirits, produced in the state of Paraíba were evaluated using as references the established parameters by the Brazilian Ministry of Agriculture (alcoholic content, volatile acidity and copper). Only two brands of sugar cane spirits showed the alcoholic concentration in accordance to the values specified on their label. All analyzed brands were within the limits specified for volatile acidity, although one showed relatively high value. The copper concentration in the same sample exceeded 70% the level tolerated by regulations (5 mg/L), suggesting that the high volatile acidity contributed for the removal of copper for the distillate. In the other brands, the copper average concentration was of 2.5 mg/L. It was verified the need for an improvement in the internal control systems of the distilleries so that the products assist the standards established by regulations.
ESTUDO DA VIDA-DE-PRATELEIRA DE BEBIDA ELABORADA PELA MISTURA DE GARAPA PARCIALMENTE CLARIFICADA-ESTABILIZADA E SUCO NATURAL DE MARACUJÁ
Authors: PRATI PATRICIA , MORETTI ROBERTO HERMÍNIO , CARDELLO HELENA MARIA ANDRÉ BOLINI , GÂNDARA ANA LOURDES NEVES
Published: January 2015

O objetivo desta pesquisa foi estudar a vida-de-prateleira de produto elaborado com garapa, parcialmente clarificadaestabilizada, e suco de maracujá (5%). A mistura foi adicionada de antioxidante, conservante e espessante em concentrações pré-estabelecidas. Após pasteurização, o produto foi resfriado, embalado em garrafas de polietileno tereftalato (PET) e armazenado sob refrigeração pelo período de um mês. Foram realizadas determinações microbiológicas (Contagem Padrão, Contagem de Bolores e Leveduras, Coliformes Totais e Fecais), físico-químicas (pH, ºBrix, acidez, relação Brix/Acidez, teor de ácido ascórbico, turbidez), e sensoriais. Os resultados da análise sensorial, considerados os mais relevantes para a pesquisa, indicaram que o produto (mistura de garapa parcialmente clarificadaestabilizada com suco de maracujá) pode ser elaborado e comercializado por até quinze dias sob refrigeração, pois as condições do processo permitiram a manutenção da qualidade microbiológica e sensorial. O teor de ácido ascórbico manteve-se em bom nível até o final da estocagem, com perda de apenas 20% em relação ao teor adicionado. SHELF-LIFE STUDY OF A BEVERAGE ELABORATE BY BLEND OF PARTIALLY CLARIFIED-STABILIZED SUGAR-CANE JUICE AND NATURAL PASSION FRUIT JUICE Abstract The objective of this research was to study the shelf-life of a product elaborated with sugar cane juice, partially clarified-stabilized, and passion-fruit juice (5%). The blend was added of antioxidant, preservative and thickener in pre-established concentration. After pasteurization the product was refrigerated in polyethylene teraftalate (PET) bottles and stored for 1 month period under refrigeration. Microbiological determinations (Standard Count, Mould and Yeasts Count, Total and Faecal Coliforms), physico-chemical (ºBrix, pH, acidity, relation Brix/acidity, ascorbic acid content, turbidity) and sensorial were accomplished. The results of sensorial analysis, considered the more relevant for the research, indicated that the product (blend of sugar-cane juice partially clarified/stabilized with passion fruit juice) may be elaborated and commercialized until 15 days under refrigeration, because the conditions of the process allowed the maintenance of microbiological and sensorial quality. Ascorbic acid content maintained a good level until the end of storage, with lost of only 20% in relation to the concentration added.
CARACTERIZAÇÃO FÍSICO-QUÍMICA E ACEITAÇÃO SENSORIAL DE BEBIDA FUNCIONAL ADICIONADA DE FRUTOLIGOS-SACARÍDEO E FIBRA SOLÚVEL
Authors: FREITAS DANIELA DE GRANDI CASTRO , JACKIX MARISA DE NAZARÉ HOELZ
Published: January 2015

Este trabalho teve como objetivo o desenvolvimento de néctar misto de cenoura e laranja, adicionado de frutoligossacarídeo e pectina cítrica. A influência da adição desses ingredientes funcionais foi avaliada mediante planejamento fatorial completo de suas características físico-químicas e aceitação sensorial. A adição de frutoligossacarídeo em interação com a adição de pectina aumentou o teor de sólidos solúveis e a viscosidade da bebida. O frutoligossacarídeo não acarretou efeito negativo na aceitação sensorial da bebida, mesmo em concentração elevada (15%). A adição de pectina cítrica como fibra solúvel em concentração acima de 1% provocou aumento no pH da bebida e as formulações com essas concentrações não alcançaram boa aceitação pelos julgadores na avaliação sensorial. PHYSICO-CHEMICAL CHARACTERIZATION AND SENSORY ACCEPTANCE OF FUNCTIONAL DRINK ADDED OF FRUCTOLIGOSSACHARIDES AND SOLUBLE FIBER Abstract This work had as objective the development of a mixed nectar constituted of carrot and orange, added of fructoligossacharides and citric pectin. The influence of the addition of this functional ingredients was evaluated by complete factorial design of their physico-chemical characteristics and sensory acceptance. The addition of fructoligossacharides in interaction with the addition of pectin enhanced the soluble solids rate and the viscosity of the beverage. The fructoligosaccharide didnt cause negative effect on sensory acceptance of the drink, even at high concentration (15%). The addition of citric pectin as soluble fiber in concentration above 1% led to an increase in pH of the drink and the formulations with this concentrations didnt reach good acceptance by the judges in the sensory evaluation.
CARACTERÍSTICAS DE ADSORÇÃO DE ÁGUA DE FARINHAS CRUAS E PRÉ-GELATINIZADAS DE DUAS VARIEDADES DE ARROZ DE TERRAS ALTAS
Authors: DE LIMA CLEUSA HELENA ALVES MONTEIRO , ASCHERI DIEGO PALMIRO RAMÍREZ , BASTOS SUELY MIRANDA CAVALCANTE BASTOS
Published: January 2015

O presente trabalho teve como objetivo estudar as características de adsorção de água de farinhas de arroz cruas e pré-gelatinizadas das cultivares de terras altas BRS Primavera e BRS Monarca. As amostras pré-gelatinizadas foram obtidas de grãos de arroz cozidos em água por 10 a 40 min. As farinhas obtidas foram submetidas as determinações de teor de água, açúcares redutores totais. As isotermas de adsorção foram obtidas em diferentes atividades de água (0,112-0,972) a 30°C. Dos modelos matemáticos de adsorção de água (Halsey, Oswin e GAB), a equação de GAB explicou melhor a variação das isotermas em função da atividade de água (máxima de 0,75) como sendo seguro para o armazenamento desses produtos de arroz. Em atividades de água entre 0 e 0,3, a estrutura dos grânulos de amido das farinhas cruas resiste à adsorção da água. Os resultados sugerem que a farinha de arroz cru da cultivar BRS Monarca é menos higroscópica que a de BRS Primavera e poderá ter maior tempo de armazenamento quando estocada em condição semelhante à de sua camada monomolecular. Quando submetidos a tempos de cocção prolongados, os grãos de arroz da cultivar BRS Primavera produzem farinhas mais estáveis por serem menos higroscópicas que as similares da cultivar BRS Monarca.
UTILIZAÇÃO DE MÉTODOS COMBINADOS PARA OBTENÇÃO DE MAMÃO FORMOSA (Carica papaya) SECO
Authors: GARCIA CAROLINA CASTILHO , CANIZARES DIEGO , SILVA KEILA DE SOUZA , DARROS-BARBOSA RÓGER , MAURO MARIA APARECIDA
Published: January 2015

O objetivo do presente trabalho foi avaliar a influência do branqueamento em água quente, da desidratação osmótica em solução de sacarose e da aplicação de cobertura comestível de pectina na cor e atividade de água de fatias de mamão Formosa, após secagem convectiva. Nos experimentos iniciais, com base em planejamento fatorial, avaliou-se a influência da concentração da solução desidratante e do tempo de desidratação osmótica na cor e atividade de água de fatias frescas e branqueadas de mamão. Não foram verificadas alterações significativas na cor das amostras nos intervalos estudados. Encontrou-se expressão para a atividade de água das frutas branqueadas desidratadas osmoticamente. Posteriormente avaliou-se a influência do branqueamento, da desidratação osmótica, da aplicação de cobertura comestível e de combinações entre esses pré-tratamentos na cor e atividade de água das fatias de mamão após secagem convectiva. Verificou-se que o branqueamento não representou pré-tratamento vantajoso para a manutenção da cor e para a redução da atividade de água das frutas secas. As frutas frescas desidratadas osmoticamente com ou sem aplicação de cobertura comestível apresentaram os melhores resultados.
EFEITOS DA TEMPERATURA E CONCENTRAÇÃO NAS PROPRIEDADES FÍSICAS DA POLPA DE ARAÇÁ-BOI
Authors: TEIXEIRA TÚLIO REIS , OLIVEIRA ANDERSON DO NASCIMENTO , RAMOS AFONSO MOTA
Published: January 2015

Este trabalho objetivou estudar os efeitos da temperatura e da concentração da polpa de araçá-boi sobre as suas principais propriedades físicas. As polpas de araçá-boi em diferentes concentrações (4, 7, 10 e 13 ºBrix) e temperaturas (10, 20, 30, 40, 50 e 60 ºC) foram avaliadas quanto à densidade e comportamento reológico, sendo os dados experimentais submetidos à análise de regressão. Observou-se que a densidade da polpa de araçá-boi diminuiu linearmente com a temperatura e aumentou conforme a concentração. Verificou-se comportamento pseudoplástico para a polpa em todas as condições estudadas, o qual foi descrito de forma adequada pelo modelo de Ostwald-de Waele (R² ≥ 0,983). O modelo de Arrhenius explicou adequadamente a variação da viscosidade aparente das polpas conforme a temperatura, com energia de ativação na faixa de 7,30-13,29 kJ mol-1. Os modelos exponenciais obtidos para explicar a influência da concentração das polpas na viscosidade aparente também apresentaram bons ajustamentos aos dados experimentais (R² ≥ 0,983). Os modelos obtidos podem ser muito úteis para a indústria de alimentos.
ENVELHECIMENTO DO AMARANTO: ALTERAÇÕES FÍSICAS NOS GRÃOS E NAS PROPRIEDADES FÍSICO-QUÍMICAS E FUNCIONAIS DAS PROTEÍNAS
Authors: PRIA MARIANA LUIZA DE LOYOLA CURI DALLA , PIMENTEL TATIANA COLOMBO , PRUDENCIO SANDRA HELENA
Published: January 2015

Objetivou-se avaliar o efeito do tempo pós-colheita do amaranto (3 e27 meses de armazenamento em condições ambientais Tmédia 27 ºC eURmédia 80 %) nas características físicas de grãos e nas propriedadesfísico-químicas e funcionais de seus concentrados proteicos. Grãoscom maior tempo pós-colheita apresentaram-se mais avermelhadose escuros, com maior acidez e umidade, além de menor capacidadede hidratação e solubilidade proteica em água em diferentes pHque os grãos mais novos. O concentrado proteico de amarantoproveniente de grãos com maior tempo pós-colheita mostrou menorrendimento (9,62 %) que o obtido de grãos mais novos (11,06 %),assim como menor solubilidade das proteínas em diferentes pH emenor capacidade de absorção de água ou óleo. Por outro lado,apresentou maior estabilidade da emulsão e da espuma. Não houvediferença na capacidade de formação de gel, espuma e emulsãoe no perfi l eletroforético das proteínas dos dois concentrados. Oconcentrado proteico de grãos com menor tempo pós-colheitapode ser empregado em produtos cujas propriedades de absorçãode água ou óleo e solubilidade sejam importantes. O concentradoproteico obtido de grãos mais antigos pode ser ingrediente dealimentos em que a formação de gel, espuma ou emulsão sejanecessária, devido à sua maior estabilidade. O amaranto apresentapropriedades emulsifi cantes e espumantes adequadas, podendo serutilizado em produtos emulsionados ou como agente espumante.
Correlatos Valorativos do Preconceito Religioso: Um Estudo em uma Escola Pública Estadual
Authors: Aquino Thiago Antonio Avellar , Gouveia Valdiney , Da Silva Joilson Pereira , Da Silva Diego Messias
Published: January 2015

O objetivo do presente estudo foi conhecer em que medida e direção os valores humanos se correlacionam com o preconceito religioso. Porém, previamente demandou-se construir e conhecer evidências de validade da Escala de Tolerância Religiosa (ETR). Participaram da pesquisa 200 estudantes do ensino médio de uma escola pública de João Pessoa (PB), com idade média de 17 anos (dp = 2,12), a maioria do sexo feminino (58%). Estes responderam a ETR, o Questionário dos Valores Básicos e perguntas demográficas. Os resultados indicaram correlação negativa entre as subfunções valorativas experimentação e suprapessoal com as pontuações do fator geral de preconceito religioso. Por outro lado, observou-se correlação positiva entre estas pontuações e a frequência com que os jovens participavam de atividades de sua igreja. Estes resultados foram discutidos levando em conta a concepção clássica do preconceito, destacando a importância da teoria funcionalista dos valores para explicá-lo. Finalmente, ressalta-se a importância do ensino religioso como uma alternativa para amenizar este tipo de preconceito.
ENREDOS DO ABUSO SEXUAL: ANÁLISE DO PROCESSO DE VIOLÊNCIA E ATENDIMENTO DE ADOLESCENTES NO MUNICÍPIO DE ALTAMIRA/PA
Authors: Oliveira Assis Da Costa , Alves Carine Costa
Published: January 2015

O presente artigo objetiva analisar as complexidades que envolvem o processo de produção do abuso sexual e as formas de atendimento institucional, com base na análise da história de vida de duas adolescentes, abusadas sexualmente, que residem no município de Altamira, estado do Pará. Inicialmente, discute-se a realidade histórica do abuso sexual nesse município, atentando para o caso dos meninos emasculados e o cenário atual influenciado pela construção da Usina Hidrelétrica de Belo Monte, e delimita-se, conceitualmente, o abuso sexual. Envereda-se, então, para a análise do período de infância das adolescentes, constatando-se a presença de fatores de risco que potencializaram a ocorrência do abuso sexual. Os processos de violência, cuja força simbólica se manteve para além do ato de revelação, promoveram pactos de silêncio entre os autores da violência e as vítimas. Ainda assim, a revelação, em ambos os casos, deveu-se a estratégias distintas de enfrentamento do abuso sofrido, o que acabou por gerar intervenção interinstitucional que acarretou a produção da revitimização, assim como a oferta do atendimento psicossocial por profissionais de uma única área científica, a Psicologia, sem garantir o trabalho interdisciplinar. No entanto, as adolescentes enfatizaram o caráter positivo da intervenção psicossocial, cujo maior resultado foi o fato de terem conseguido ressignificar as violências sofridas e estabelecer novos projetos de vida.
A EXPANSÃO DO CONTROLE POR MEIO DAS MEDIDAS CAUTELARES PESSOAIS DIVERSAS DA PRISÃO
Authors: Borges Clara Maria Roman , Oliveira João Rafael de
Published: January 2015

O presente artigo tem por objetivo analisar como as medidas cautelares pessoais alternativas à prisão, previstas na Lei no 12403/11, foram responsáveis pela expansão do controle social realizado pelo sistema penal no Brasil. A partir da leitura das obras de Michel Foucault, atribui-se tal ampliação do controle punitivo à experiência contemporânea de uma sociedade de controle nos países ocidentais, que assegura sua manutenção com o estabelecimento de uma biopolítica e do neoliberalismo. Verifica-se como as novas medidas cautelares vêm ao encontro desta nova ordem social, que estabelece a vigilância permanente sobre os indivíduos.
CULTIVO DE SHIMEJII EM SUBSTRATO CAPIM-ELEFANTE SUPLEMENTADO COM DIFERENTES TIPOS DE FARELOS
Authors: DONINI Lorena Pastorini , BERNARDI Eduardo , MINOTTO Elisandra , NASCIMENTO José Soares do
Published: January 2015

O objetivo deste trabalho foi avaliar o cultivo de linhagens de Pleurotus ostreatus em substrato capim-elefante suplementado com diferentes tipos de farelos. O experimento consistiu no uso do substrato capim-elefante suplementado com farelos de soja, trigo, arroz ou milho em concentrações de 0, 10 ou 20%, colocados em frascos que foram semeados com  as linhagens BF24, DF33 e HF19 de Pleurotus ostreatus e incubados a temperatura ambiente (20 - 26 0C). Depois da completa colonização do substrato, os frascos foram transferidos para uma câmara de frutificação com temperatura entre  20 e 28 ºC e umidade relativa de 75 - 90%.  A linhagem BF24 foi mais produtiva e a suplementação do capim-elefante com farelo de trigo em concentrações de 10 e 20% aumentou a produtividade e eficiência biológica das três linhagens  de Pleurotus ostreatus.