bluuebunny/crossref_metadata_2025 huggingface dataset:
Adaptive interval type-2 fuzzy logic systems for vehicle handling enhancement by new nonlinear model of variable geometry suspension system
Authors: Baghaeian Mansour , Akbari Ali Akbar
Published: October 2017

This research examines the emerging role of adaptive interval type-2 fuzzy logic systems (AIT2FLS) versus adaptive type-1 fuzzy logic system (AT1FLS) in vehicle handling by a new nonlinear model of the variable geometry suspension system (VGS) as a vehicle active suspension system. A proper controller is needed in order to have soft response and robustness against challenging vehicle maneuvers. Two controllers, including AT1FLS and AIT2FLS have been used in the paper. The proposed AIT2FLS can efficiently handle system uncertainties, especially in the presence of most difficult challenging vehicle maneuvers in comparison with AT1FLS. The interval type-2 fuzzy adaptation law adjusts the consequent parameters of the rules constructed on the Lyapunov synthesis approach. For this purpose, the kinematic equations are obtained for the vehicle double wishbone suspension system and they are substituted in a nonlinear vehicle handling model with eight degrees of freedoms (8DOFs). Thereby, a new nonlinear model for the analysis of VGS is obtained. The results indicate that between the two controllers, the proposed AIT2FLS has better overall vehicle handling, robustness and soft response.
Partial lumped mass method in longitudinal deck-pier poundings of girder bridges and its test verification
Authors: Peng Tianbo , Wu Yicheng
Published: October 2017

Contact element methods have been widely used in the field of bridge poundings in recent years. For deck-pier poundings of girder bridges, two kinds of contact element methods are commonly used. One is the Lumped Parameter Method (LPM), which simplifies two pounding bodies to be two particles respectively, and the stress wave propagation phenomenon is disregarded. The other one is the Watanabe and Kawashima Method (WKM), whose weakness is that the pounding stiffness introduced to describe the pounding process is supposed and artificial. A new method, named as the Partial Lumped Mass Method (PLMM), was put forward for longitudinal deck-pier poundings of girder bridges and was introduced in this paper. Its applications were discussed in detail at first. Pounding force time histories with different Partial Lumped Factors were derived. The Rational Partial Lumped Factor was suggested theoretically. At last, the analysis results using the PLMM with different Partial Lumped Factors were compared, and the validity of the PLMM suggested in this paper was verified with shaking table test results.
The effects of secondary components on the interior noise characteristics of automobiles
Authors: Oktav Akın
Published: October 2017

Among the other noise problems, the low-frequency booming noise is the most annoying one. The booming noise significantly reduces the total quality perception of the brand. In this study, the contributions of secondary components to the booming noise are investigated. The general aspects of the problem are given for the sake of completeness. The causes of low-frequency booming noise are explained. The widely accepted procedure for the booming noise is discussed through the results of a case study, where an automobile equipped with a diesel engine is studied. In the case study, two different secondary components that cause booming noise are identified experimentally. It is proposed to improve the widely accepted procedure by adding an extra step for the secondary components. In some cases, the secondary components are the main causes of the unforeseen noise and vibration problems, as the current study reveals.
Research on vibration characteristics of gear-coupled multi-shaft rotor-bearing systems under the excitation of unbalance
Authors: Zhu Lisha , Zhang Rui , Zou Changqing
Published: October 2017

To find out the effect of eccentricity of a gear wheel on inherent characteristics of a gear-rotor system, this paper establishes a pair of general transverse-rotational-axial-swinging multi degrees of freedom coupling helical gear meshing dynamic model based on the finite element method (FEM). Considering the influence of the azimuth, the meshing angle, the helix angle and the rotation direction of driving shaft on mesh stiffness matrix, it analyzes the effect of mesh stiffness and mesh damping on the inherent characteristics and the transient response of the system. It obtains the displacement response curve and the dynamic meshing force curve of all nodes responding to the incentives of static transmission error and unbalance while considering mesh damping. It concludes that the effects of gear coupling and eccentricity of gear wheel should be taken into account in a multi-parallel-shaft gear meshing rotor system.
Theoretical model and characteristics analysis of deflector-jet servo valve’s pilot stage
Authors: Yan Hao , Bai Long , Kang Shuo , Dong Lijing , Li Changchun
Published: October 2017

To analyze the deflector-jet servo valve’s internal flow characteristics, a theoretical model of the complicated flow distribution in the deflector plate is established based on the offset jet attachment theory. When the deflector plate offsets, jet attachment parameters are attained to figure out the jet’s bending and colliding process. On this basis, an analytical method of acquiring the pilot valve’s pressure gain is derived. According to an actual pilot stage’s structure, pressure gain calculations are carried out. Meanwhile, the pilot valve’s mesh model is established for numerical simulation in order to examine the accuracy of the theoretical model. Calculation and numerical simulation show that the final oil jet is not sensitive to the deflector plate’s movement, which directly reveals the pressure stabilizing effect of the V-shaped structure on the deflector plate. Moreover, the experiment on the pressure gain is accomplished and experiment results verify the accuracy of the analytical calculation.
Research on residual drift response of steel frames under strong earthquakes
Authors: Xiong Ergang , Yan Zhaoqi , Li Tian , Yang Lanwei
Published: October 2017

Steel frames designed to the current codes will undergo an unrecoverable plastic deformation under strong earthquakes. The structures subjected to excessive deformations after earthquakes cannot be desirably repaired to their serviceable state, and can only be demolished, which brings about a serious direct and indirect economic loss. Thus, it is of great significance to predict the residual drift for the performance evaluation and control of structures after earthquakes. In order to investigate the residual drift response of steel frames under strong earthquakes, steel frames between 2 and 10 stories in height are designed according to Code for seismic design of buildings (GB50011-2010) and Code for design of steel structures (GB50017-2003) in this study. The designed structures are investigated numerically by pushover analysis and elasto-plastic time history analysis. Furthermore, the peak drifts, residual drifts and drift concentration factors are reasonably obtained under the action of moderate earthquakes and major earthquakes. The results indicate that the scatter in the residual drift results is a bit large. On the basis of analysis results, the calculation formulae are proposed to estimate the residual drifts of steel frames as a function of the expected peak drift, the initial recoverable elastic drift, and the drift concentration factor of steel frames.
Operating principle of vibratory stress relief device using coupled lateral-torsional resonance
Authors: Cai Ganwei , Huang Yuanxing , Huang Yizhe
Published: October 2017

The current process of vibratory stress relief is limited by centrifugal force produced by eccentric motor since the excitation frequency is mostly less than 200 Hz. The workpiece with high structural stiffness cannot generate enough dynamic stress by the traditional method. In the present work, the vibratory residual stress using pure lateral resonance and the theory of coupled lateral-torsional resonance are compared by the finite element method. Due to the interaction between lateral vibration and torsional vibration, the torsional vibration generated by external lateral excitation can induce coupled lateral-torsional resonance. The large enough dynamic stress is obtained to reduce the residual stress. The principle to reduce residual stress is analyzed by the Unified strength theory. Numeric solutions are obtained to describe the parametric condition to design the device of vibratory stress relief using coupled lateral-torsional resonance. The operating principle of the related device is introduced.
Path tracking control for inverse problem of vehicle handling dynamics
Authors: Liu Yingjie , Cui Dawei , Fu Yu
Published: October 2017

A path tracking controller based on active disturbance rejection control(ADRC) theory is presented in this paper to solve path tracking problem in inverse vehicle handling dynamics. The basic idea behind the work is to design an active disturbance rejection controller according to yaw rate and lateral displacement during a vehicle travels along a prescribed path to generate an expected trajectory which guarantees minimum clearance to the prescribed path. Aiming at this purpose, using preview follower theory, a linear extended state observer based on lateral displacement is designed. Considering yaw angle of vehicle, a non-linear combination function combined error of lateral displacement as well as error of yaw angle is designed according to monotone bounded hyperbolic of tangent function. Finally, a real vehicle test is executed to verify the rationality of the path tracking controller. At the same time, according to characteristics of pavement file in Carsim, a 3-D virtual pavement model is established and ride comfort simulation of random pavement is carried out in the software model. The results show that the minimum lateral position error of the generated path tracking trajectory can be good indicators of successful solving of the path tracking problem in inverse vehicle handling dynamics for ADRC. More precisely, there is higher calculation accuracy for the algorithm of the ADRC to solve the path tracking problem. The study can help drivers easily identify safe lane-keeping trajectories and area.
Optimal design of structure in rheological models: an automotive application to dampers with high viscosity silicone fluids
Authors: Pistek Vaclav , Klimes Lubomir , Mauder Tomas , Kucera Pavel
Published: October 2017

Dynamic torsional vibration dampers are for a long time inherent integral components of internal combustion engines. One of the most common types of the dynamic dampers is a silicone damper. It has been, for many years, perceived as an exclusively viscous damper, thus it has been constructed and designed according to this perception. When compared to other types of dynamic dampers of the similar size with flexible components used for their construction, the standard viscous damper has a lower damping effect. Moreover, this damper type has been a significantly cheaper and simpler solution. Current silicone oils with high nominal viscosity, having not only the expected damping properties, but also significant elastic characteristics under alternate shear stress, enable construction of dynamic dampers with a higher damping effect than a viscous damper. Frequency and temperature dependent complicated rheological properties of high viscosity silicone fluids can only be identified experimentally using a suitable dynamic viscometer. However, the measured frequency dependencies of both components of the complex shear modulus are only defined for harmonic loading while internal combustion engine load is periodic and contains several tens harmonics. The key to the solution is therefore to find suitable multiparameter rheological models comprised of linear elastic and damping elements that would approximate in the specified frequency range both components of the complex shear modulus. Such a complicated task can be solved using efficient optimization algorithms. This article focuses on the mathematical description of convolute rheological properties of high viscosity silicone liquids and also contains an example of the application of created rheological models in the complex dynamic model of a V10 diesel engine. A computational tool for the determination of stiffness and damping coefficients of the multi-parameter rheological model was created and solved in the optimization software GAMS by means of the CONOPT solver. The possibility of these modern technologies is shown by the comparison of computation models and experimentally set torsional vibration spectres with standard viscous damper and damper utilizing a high viscosity silicone oil.
Separation of motion techniques for trajectory optimization in flexible redundant robot manipulators
Authors: Faritus Seyed Mohammad Reza , Heidari Mohammad , Shateyi Stanford
Published: October 2017

This paper presents a computational method for optimization of trajectory in redundant robot manipulators. For this purpose, all possible answers are acquired based on rigid conditions and redundancy of the robot. Using open loop optimal control method, the trajectory which minimizes the objective function will be obtained. The objective function is considered as an integral index that will be minimized in the entire trajectory. The objective function and constraints of optimization problem will be selected based on conditions of motion. Dynamic equations of the system are constraints of optimization problem in point-to-point motion. For motion conditions in the specified path, kinematic equations will be added. Also, unequal constraints are applied for limiting the velocity and torque. By selecting the state and control signal vectors which are obtained by assuming rigid motion of the robot, the objective function and constraints will be changed to standard form of an optimization problem. Pontryagin’s maximum principle is used to solve equations. So, the equations of classical form will be changed into two-point boundary value problem. Suggested method is applied to point-to-point motion and movement in the specified path. Results demonstrate accuracy and efficiency of suggested method.
Research on the numerical simulation of aerodynamic noises of shear flow based on linearized Euler equations
Authors: Fan Guo-bing , Yan Jian-ming
Published: October 2017

This paper numerically simulated the propagation of different sound sources in inhomogeneous media through solving linearized Euler equations (LEE). In space, dispersion-relation-preserving (DRP) scheme and compact difference scheme of high-order accuracy were used for dispersion. In time, Runge-Kutta (Low Dispersion and Dissipation Runge-Kutta) method with low-dispersion and low-dissipation was applied to push ahead. Nonreflecting boundary condition was adopted at the far-field boundary. In the meanwhile, numerical filtering was conducted for numerically computational results. The scattering of Gaussian pulse source around a cylinder was taken as a verification example. Numerical simulation results were compared with theoretical solutions to verify the correctness of numerical simulation method of aerodynamic noises in this paper. Numerical simulation was conducted for the sound propagation of monopole sound source in the shear layer and the sound propagation of different modes of sound sources in and out the tailpipe nozzle of engines. Numerical simulation results showed: The treatment for dispersion schemes and boundary conditions in this paper could well simulate the propagation process of aerodynamic noises in the shear layer; the shear flow would have an impact on the amplitude and propagation direction of aerodynamic noises in the flow field; for different modes of pipe sound sources, the shear layer would cause different refraction effects; the direction of sound radiation was rather centralized for the single pipe mode and dispersive for the multi-pipe mode. In addition, the dispersive-ness of sound radiation became stronger and stronger with the increased pipe modes. Namely, the directivity of sound presented to be a petal. The shear layer would reduce the dispersion effect of multi-pipe modes in the direction of sound radiation.
Experimental investigations on effects of axial clearance on high-speed turbine expansion generator rotor response
Authors: Han Dongjiang , Yang Jinfu , Wang Zhengwei
Published: October 2017

Bearing-rotor system dynamic characteristic is the key influence on high-speed power equipment stability. The experimental investigations focus on the dynamic characteristics of high-speed turbine expansion generator rotor, which was supported by gas aerostatic bearings. Nonlinear dynamic behavior of high-speed turbine expansion generator rotor, including gas film whipping and gas film half-speed whirling, were analyzed in the experiments. Static characteristic tests for effects of bearing supply gas pressure on the bearing axial clearance are carried out to provide the rotor axial position under different bearing supply gas pressure groups, which showed that the bearing thrust performance changed with bearing supply gas pressure. The experimental results of rotor dynamic characteristics under different bearing supply gas pressure groups show that gas film whirling and whipping occurred in the mentioned bearing-rotor system during the speed up process when the axial clearance for two ends were different. The shafting stability under the same axial clearance for two ends is better than the condition under the different bearing axial clearance. The paper gives some measures to improve the high-speed bearing-rotor system stability.
A new method for optimizing the parameters of torsional vibration dampers
Authors: Tan Xiaodong , Hua Lin , Lu Chihua , Yang Can , Wang Yongliang , Wang Sheng
Published: October 2017

Torsional vibration dampers (TVDs) are essential components for reducing the torsional vibration of a vehicle power transmission system (VPTS). This paper presents a new parameter optimization method for designing TVDs. The method combines the modal inertia and energy methods by adjusting the modal inertia method using an adjustment factor that is optimized using the energy method. The optimization of TVD parameters seeks to minimize the maximum torsional elastic potential energy of the rear axle near the resonance speed, so that the design variables can be optimized by a manual search process. The proposed method is employed to optimize the parameters of single-stage, two-stage parallel, and two-stage series TVDs coupled to a model VPTS. The damping effects of TVDs optimized by the modal inertia method, the energy method, and the proposed method were compared and analyzed, and the calculation efficiencies of the methods were evaluated. Results show that the proposed method provides better damping effects than the modal inertia method, and also provides far better computing efficiency than the energy method.
Numerical optimization for vibration and noise of the wheel based on PSO-GA method
Authors: Ji Yi , Fu Hai Jun , Chen Kun Hua
Published: October 2017

Currently, those reported researches conducted optimal design for the wheel only in order to reduce the tread wear and increase the service life, but they did not consider the wheel vibration and radiation noise which seriously influence people’s life and did not achieve obvious noise reduction effects. Aiming at this question, a multi-body dynamic model of the high-speed train was established, and the vertical and radial force was extracted to input into the finite element model of the wheel to compute its vibration characteristics. Then, the wheel was conducted on a multi-objective optimization based on particle swarm optimization improved by genetic algorithm (PSO-GA) method. Finally, the optimized vibration results were mapped to the acoustic element model to compute the radiation noise of the wheel. The computational model was also validated by experimental test. In order to observe the optimized effect, the optimized results were compared with those of the traditional GA and PSO method. Solutions of the traditional GA and PSO method were relatively dispersed during iterations and the algorithm could easily fall into the locally optimal solution. The optimized results of PSO-GA method were obviously better. Compared with the original wheel, the vibration acceleration was reduced by 22.9 %, and the mass was reduced by 1.1 %. Finally, the optimized vibration was mapped to the boundary element model to compute the radiation noise of the wheel, and the computational results were compared with the original wheel. Radiation noises of the original wheel were obviously more than that of the optimized wheel, and there were a lot of obvious peak noises in the original wheel. Radiation noises of the optimized wheel only had two obvious noise peaks in the analyzed frequency. Therefore, a wheel with low noises and lightweight was achieved in this paper.
The geochemistry of the Maimón Formation (Central Cordillera, Dominican Republic) revisited
Authors: Torró L. , Proenza J. A. , García-Casco A. , Farré de Pablo J. , Del Carpio R. , León P. , Chávez C. , Domínguez H. , Brower Salvador , Espaillat J. , Nelson C. , Lewis J. F.
Published: October 2017

Volcanic rocks from the Maimón Formation, metamorphosed under greenschist facies conditions, represent the most ancient arc magmatism recorded in the Cretaceous Caribbean island arc. From new geochemical data, and on the basis of immobile trace elements (high field strength elements - HFSE, rare earth elements - REE), a predominance of basaltic protoliths over intermediate and acid compositions has been determined. Geochemically, the basaltic protolith includes boninites, low-Ti LREE-depleted island arc tholeiites, normal low-Ti island arc tholeiites, and exiguous normal island arc tholeiites. The acid rocks present a clear boninitic and tholeiitic affinity and are of the M-type (mantle-derived). The geochemistry of low-Ti LREE-depleted island arc tholeiites permits their classification as fore-arc basalts (FAB), which is a term introduced recently to describe tholeiites with MORB (mid-ocean ridge basalt)-like features from the Izu-Bonin-Mariana fore-arc. The presence of FAB and their stratigraphic association with boninites indicate formation in a fore-arc environment during the earliest stage of island arc magmatism in an extensional setting that characterizes the onset of subduction and birth of an island arc. The Maimón Formation could represent the volcanic top of an ophiolite of the “subduction initiation” type.
Relict cataclasis in the high-pressure marbles of the Samaná complex, Northeast Dominican Republic
Authors: Rodríguez I. , Fernández F. J. , Escuder-Viruete J. , Pérez-Estaún A.
Published: October 2017

Cold-cathodoluminescence (CCL) images have unmasked relict cataclastic microstructures in marbles and calc-schists of the higher-pressure units of the Samaná complex. The grain size of the cataclastic microstructures always has a self-similar distribution of power law type, with a slope break at log(ri)=1.7. The large grain size fraction (1.7<log(ri)<2.4) is characterized by fractal dimension D2=2.43 in the calcite-microstructures of the Punta Balandra unit and D2=2.72 in the Santa Bárbara unit. Both D-values are within the usual range of the carbonate-cataclasites and they are significant with the linear correlation of R2=0.95 and 0.93, respectively. However, the finer grain size fraction (0.9<log(ri)<1.7) is characterized by D1<1 and this grain-size distribution is beyond the fractal-range for pure cataclastic-fabric, even though it has better fit power-law distribution.
Microstructures such as dissolution-surfaces, interpenetrated particles, and the higher roundness and lower irregularity of the boundary grain from the fine fraction indicate that dissolution-precipitation creep was dominant after cataclasis. Clast size and stress reduction after cataclasis and the high fluid pressure provided favorable conditions to allow dissolution-precipitation creep. Transition from cataclastic flow to dissolution-precipitation creep was scale-dependent and it tended to homogenize and reduce the finer grain size fraction. Consequently, the slope break between D1 and D2 is interpreted as a record in the grain size distribution produced by a change in the dominant deformation mechanism.
Paleostress evolution during the exhumation of high-P marbles, Samaná Complex, northern Hispaniola
Authors: Fernández F. J. , Rodríguez I. , Escuder-Viruete J. , Pérez-Estaún A. , Mariani E. , Prior D.
Published: October 2017

The marble of the Samaná complex presents a widespread foliation formed during its exhumation following a general decompressive strain path from high pressure (2.0>P>0.7 GPa) and low temperature (<500 ºC) conditions. The foliation is plano-linear and blastomylonitic. Deformation distribution is highly heterogeneous. Calcite preferred orientation is poor, even though the marble has a well-defined tectonic fabric. The blastomylonitic fabric is masking an earlier tectonic fabric. Cathodoluminescence images reveal that intense fracturing formed prior to foliation development in the marbles. The thermodynamic modelling of mineral phase transformations during prograde metamorphism indicate an increase in water content (1.2%<w.t.H2O<1.8%) that may have involved an increase in fluid pressure and triggered rock embrittlement and subsequent exhumation. Stress drops after a cataclastic event, as well as grain-size reduction by abrasion, may have activated dissolution-precipitation processes along cataclastic bands. Differential stress |σ1-σ3| increased as exhumation progressed after the cataclastic event. Estimates of paleostress based on calcite mechanical twinning indicate values of |σ1-σ3| >350 MPa during deformation. In contrast, mean flow stress during grain-boundary migration is estimated in |σ1-σ3| <150 MPa. The high paleostress record and microstructures of the marble are consistent with the high exhumation rate calculated (>110 MPa Ma-1). All of these data suggest that exhumation always occurred near the brittle-ductile regime of deformation.
Genetic Investigation of Beta-Lactam Associated Antibiotic Resistance Among Escherichia Coli Strains Isolated from Water Sources
Authors: Ranjbar Reza , Sami Mehrdad
Published: October 2017

Background:

Antimicrobial resistance is an important factor threatening human health. It is widely accepted that antibiotic resistant bacteria such as Escherichia coli (E. coli) released from humans and animals into the water sources, can introduce their resistance genes into the natural bacterial community.

Objective:

The aim of this study was to investigate the prevalence of blaTEM, blaCTX, blaSHV, blaOXA and blaVEB associated-antibiotic resistance among E. coli bacteria isolated from different water resources in Iran.

Methods:

The study contained all E. coli strains segregated from different surface water sources. The Kirby-Bauer method and combined discs method was determined in this study for testing antimicrobial susceptibility and strains that produced Extended-Spectrum Beta Lactamases (ESBL), respectively. DNA extraction kit was applied for genomic and plasmid DNA derivation. Finally the frequency of resistant genes including blaTEM, blaCTX, blaSHV, blaOXA and blaVEB in ESBL producing isolates were studied by PCR.

Results:

One hundred E. coli strains were isolated and entered in the study. The highest antibiotic resistance was observed on clindamycin (96%). Moreover, 38.5% isolates were ESBL producers. The frequency of different ESBLs genes were 37%, 27%, 27%, and 25% for blaTEM, blaCTX, blaSHV, and blaOXA, respectively. The blaVEB wasn’t found in any isolates.

Conclusion:

The study revealed a high prevalence of CTX-M, TEM, SHV and OXA genes among E. coli strains in surface water resources. In conclusion, these results raised a concern regarding the presence and distribution of these threatening factors in surface water sources and its subsequent outcomes.
Methodological Aspects of Field Operational Tests of After-Market and Nomadic Driver Support Systems and Impacts on Mobility
Authors: Welsh Ruth Helen , Morris Andrew , Innamaa Satu
Published: October 2017

Background:

This paper reports on the methodology undertaken and some results achieved within a study of drivers using aftermarket and nomadic devices (the TeleFOT project).

Objective:

To evaluate the methodology for conducting Field Operational Tests for Information and Communication Technology whilst also providing an example of the method applied in the context of mobility within the TeleFOT project.

Methods:

A ‘Top down, bottom up’ approach to the derivation of research questions and hypotheses is described. Statistical analysis has been undertaken on data collected through Field Operational Tests and Travel Diaries considering the impact of information functions (such as navigation, traffic information and green driving) upon journey length.

Results:

A summary of the results relating specifically to how the length of a journey can be affected by information functions indicates that Navigation and Traffic information can reduce the length of journeys whilst Green Driving functions tend to increase the journey length.

Conclusion:

The FOT methodology was successfully applied in the TeleFOT project as was the novel method for generating research questions. When turning the theoretical FOT method developed in FESTA into practice, several good innovations were made which can be recommended for future FOTs; collation of metadata, the use of comparable origin / destination pairs for analysis, centralised processing of raw data into legs in order to simplify the analysis of the huge datasets collected in the project.
The Prevalence and Correlates of Pre-Diabetes and Diabetes Mellitus Among Public Category Workers in Akure, Nigeria
Authors: Aladeniyi Isaac , Adeniyi Oladele Vincent , Fawole Olufunmilayo , Adeolu Mary , Ter Goon Daniel , Ajayi Anthony Idowu , Iruedo Joshua
Published: October 2017

Background:

Limited epidemiological data on pre-diabetes and diabetes mellitus among public service workers, considered an at-risk population, may undermine the government’s efforts toward addressing the scourge of non-communicable diseases in Nigeria. This study aimed to address this gap by determining the prevalence of pre-diabetes and diabetes mellitus (DM), and to examine their correlates.

Methods:

We conducted a workplace cross-sectional survey of 4828 public service workers across 47 ministries, departments and agencies in Ondo State, Nigeria. An adapted World Health Organisation (WHO) STEPwise surveillance questionnaire was utilised to obtain relevant items of demographic factors, medical history and lifestyle behaviour. Height, weight, blood pressure and fasting blood sugar were measured according to standard protocols. Pre-diabetes and DM were defined as fasting blood glucose 5.6-6.9mmol/L and greater than or equal to 7.0mmol/L, respectively. We performed univariate and multivariate model analyses to determine the associated factors of pre-diabetes and DM.

Results:

Overall, 2299 men and 2529 women participated in the study. The mean age of the participants was 40.4 years (SD±9.7) and the age range was 19 to 76 years. The prevalence of pre-diabetes and DM was 11.7% (n=563) and 5.3% (n=254), respectively. Women had a higher prevalence of pre-diabetes than men did (12.5% versus 10.8%). In univariate analysis, the following factors were associated with pre-diabetes and DM; aging (p<0.0001), marital status (p<0.0001), lower level of education (p=0.008), body mass index (BMI) (p<0.0001) and hypertension (p<0.0001). In multivariate model analysis, after adjusting for confounding factors, age ≥45 years (OR=1.8, 95%CI 1.3-2.4), lower level of education (OR=1.7, 95%CI 1.2-2.4), hypertension (OR=2.0, 95%CI 1.5-2.6) and overweight/obesity (OR=2.2, 95%CI 1.6-3.0) were the independent and significant determinants of DM.

Conclusion:

We found a high prevalence of pre-diabetes and DM in the study population. Cardio-metabolic screening of public category workers might contribute significantly towards bridging the gap of undiagnosed DM in the study setting.
Development of Terminology in Gearing and Power Transmissions. Part 3. Identification of Notions on Gear Failure Modes
Authors: Starzhinsky V E , Goldfarb V I , Shilko S V , Shalobaev E V , Tesker E I
Published: October 2017

Изложены результаты анализа нормативных источников по видам повреждений зубчатых колес и разработки Межгосударственного стандарта [6] по их классификации и описанию. В оборот включены разнообразные информационные источники - Международный ISO и национальные (AGMA, DIN) стандарты; нормативный документ немецкого концерна «Zahnradfabric Friedrichshafer AG» с определениями терминов, их характеристик и причин, вызывающих повреждения; атлас «Анализ видов повреждений» американской фирмы «Geartech»; методические указания по расчетам и испытаниям на прочность к классификации видов изломов металлов, а также результаты собственных исследований. Описаны принципы, положенные в основу классификации, - отнесение того или иного повреждения к определенному классу, общему виду, виду и степени повреждения. В общей сложности повреждения классифицируются по 76 наименованиям классов, видов и степеней повреждения. Подробно описаны количественные показатели усталостного выкрашивания рабочих поверхностей зубьев - степень выкрашивания по поверхности и глубине; степень искажения профиля и распространения выкрашивания; стадии его развития; параметры и характеристики, а также расчетные формулы для их определения. В заключение подводятся итоги деятельности по идентификации и классификации понятий в области зубчатых зацеплений и передач.
Development of an Information System for Reducing the Volume of Text Information in the Process of Information Search
Authors: Vtyurin M V , Yastrebov A I , Mochenov S V
Published: October 2017

В статье рассматривается возможность применения пользователями специализированных алгоритмов для информационной системы, обеспечивающей сжатие анализируемой текстовой информации в процессе информационного поиска. Актуальность работы обосновывается сложностью информационного поиска, связанного с решением пользователем конкретной задачи и необходимостью переработки больших объемов текстовых данных. Целью является сокращение объема анализируемой текстовой информации русскоязычных текстов при сохранении их смысловой составляющей. Определены основные функциональные узлы разрабатываемой информационной системы. Модуль поиска совпадений формирует текст, состоящий из нескольких абзацев, содержащих заданные пользователем поисковые словосочетания. Данный текст по объему намного меньше исходного текста и отражает искомую пользователем информацию. Модуль сжатия представляет собой итерационную процедуру, позволяющую дополнительно уменьшить объем текста, выделенный пользователем для анализа. В предлагаемом подходе каждому слову предложения присваивается оценка, определяемая на основе ряда критериев. Разработан графический интерфейс пользователя, имеющий компактные размеры и удобную компоновку элементов. В результате применения описываемого подхода достигается существенное уменьшение объема текстовой информации, обрабатываемой пользователем в процессе информационного поиска. Для большего сокращения объема информации в дальнейшем предполагается проведение разработки модуля сжатия текста и его практическая реализация.
Protection of Migrant Workers from Upstream to Downstream through “Peduli Buruh Migran” Villages (Desbumi): Study at Kuripan Village, Central Java and Nyerot Village, West Nusa Tenggara
Authors: Retno Wulan Tyas , Shodiq Dalhar , Ramadhanti Wita , Wijayanti Sri
Published: October 2017

ABSTRACT
The high Number of Indonesian migrant workers (IMWs)workingin abroad, in facts, is not supported by adequate government protections. Due to BNP2TKI Crisis Center data of 2016, there are at least 27 thousand casesfaced by IMWs working in many countries all over the world. According to the research results conducted Wulan (2011), problems faced by IMWs in the destination countries, 80 percent of those come from villages. A village actually has strategic roles to becomes a foundation of safe migrations since villages arethe first exit doorsforpotential IMWs. The government negligence in protecting IMWs eventually results in village constructive fights to protect their people. IMWs protection is realized in migrant workers caring villages initiated by some villages such as inKuripan Wonosbo Central Java and Nyerot Lombok West Nusa Tenggara; Qualitative method is used in this research by having deep interviews, observation, andfocus group discussion with head of Desbumi’s village, village goverment.The results show that the existence of Desbumi can be a model of IMW’s protection from upstream to downstream and it means that the state present in the protection of IMWs.
Keywords: Village, desbumi, protection, Indonesian Migrant Workers

ABSTRAK
Tingginya jumlah Buruh Migran Indonesia (BMI) yang bekerja ke luar negeri, ternyata tidak diimbangi perlindungan yang memadai oleh negara. Pada tahun 2011-2016 berdasarkan data dari Crisis Center BNP2TKI, terdapat sedikitnya 27 ribu kasus yang menimpa BMI yang berada di berbagai negara. Berdasarkan hasil penelitian Ecosoc (2008), permasalahan yang dihadapi BMI di Negara tujuan, 80 persen sumbernya justru berasal dari desa. Desa sebenarnya memiliki peran yang sangat strategis untuk menjadi basis bermigrasi aman, karena desa adalah pintu keluar yang pertama bagi seorang calon BMI. Abainya pemerintah terhadap perlindungan BMI pada akhirnya justru melahirkan perlawanan-perlawanan yang konstruktif dari desa-desa untuk melindungi para warga mereka. Perlindungan terhadap BMI itu diwujudkan dalam desa peduli buruh migran (desbumi) yang diinisiasi beberapa desa, antara lain Desa Nyerot Lombok Nusa Tenggara Barat dan Desa Kuripan Wonosobo Jawa Tengah. Untuk itu peneilitian ini bertujuan mengidentifikasi dampak keberadaan Desbumi terhadap perlindungan BMI. Metode yang digunakan dalam penelitian ini adalah metode kualitatif, dengan teknik pengumpulan data wawancara mendalam dan FGD terhadap kepala desa, pengurus desbumi serta tokoh masyarakat di Desa Kuripan Wonosobo Jawa Tengah dan desa Nyerot Lombok Nusa Tenggara Barat.Hasil penelitian menunjukkan bahwa keberadaan desbumi mampu menjadi model perlindungan BMI dari hulu sampai hilir dan menjadikan negara hadir dalam perlindungan BMI.
Kata kunci; Desa, desbumi, perlindungan, Buruh Migran Indonesia
Gold Mining in Southwest Maluku: Curse or Blessing? (Study on Conflict Access of Agrarian Resources)
Authors: Pakniany Yamres , Soetarto Endriatmo , Adiwibowo Soeryo
Published: October 2017

ABSTRACT
Conflict in agrarian resource-rich areas due to differences of interest continue to occur in Indonesia, including in the gold mining area of Hila Village, District of Romang Islands, Southwest Maluku Regency. Conflict that occurred in the gold mining area of Hila Village is a horizontal conflict involving the communities, but there are local elites who play a role in it as well. Conflicting communities are those who are pro-mining and against it. Each actor has a different interest in the resources of Hila Village. This research uses qualitative method with case study approach. The purposeof this study is to analyze the factors that cause conflict. The result shows that there are many factors causing the conflict, including access to land, compensation fee and labor recruitment. These factors occur due to unilateral claims and ineffective management by village and company authorities. The benefits of the management and utilization are only felt by certain actors who have access to resources, whereas other actors who do not have access do not benefit.
Keywords: Agrarian resources, conflict, Southwest Maluku

ABSTRAK
Konflik di daerah kaya sumberdaya agraria, akibat perbedaan kepentingan terus terjadi di Indonesia, termasuk di kawasan pertambangan emas Desa Hila, Kecamatan Kepulauan Romang, Kabupaten Maluku Barat Daya. Konflik yang terjadi di kawasan pertambangan emas Desa Hila adalah konflik horisontal yang melibatkan masyarakat dengan masyarakat, namun di dalamnya terdapat elit-elit lokal yang turut berperan. Masyarakat yang berkonflik adalah masyarakat yang pro terhadap tambang dengan masyarakat yang kontra terhadap tambang. Masing-masing aktor memiliki kepentingan yang berbeda terhadap sumberdaya di Desa Hila. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus. Tujuan penelitian ini untuk menganalisis faktor-faktor penyebab konflik. Hasil penelitian ini menunjukkan bahwa terdapat banyak faktor yang menyebabkan terjadinya konflik, diantaranya faktor akses terhadap lahan, biaya konpensasi, dan perekrutan tenaga kerja. Faktor-faktor ini terjadi, karena klaim sepihak dan pengelolaan yang tidak efektif dilakukan oleh pemerintah desa dan perusahaan. Manfaat dari pengelolaan dan pemanfaatan tersebut, hanya dirasakan oleh aktor-aktor tertentu yang memiliki akses terhadap sumberdaya, sedangkan aktor-aktor lain tidak mendapatkan manfaat.
Kata kunci: Sumberdaya agraria, konflik, Maluku Barat Daya
EFEKTIFITAS KATALOG SEBAGAI MEDIA PROMOSI BAGI PENGEMBANGAN UMKM DI KABUPATEN SRAGEN
Authors: Mangifera Liana , Pramesti Aflit Nuryulia , Dewi Syahrina Noormala
Published: October 2017

This research aims to identify the promotional mix used bambu craftsmen and formulate an effective promotional strategy for the development of bamboo handicrafts. This research was conducted in the village of Cluster bamboo craft Bendo Sukodono Subdistrict in Sragen. This research used the qualitative approach with key person as a source of information. The data used are the primary data that are taken using the indepth interview. Analysis tool used is content analysis, that perform analysis driskripsi of words that often appear in the indepth interview. This research concluded that the promotion of bamboo craftsmen do is word of mouth and exhibitions. Such promotional efforts is part of this type of direct marketing (direct marketing). The promotion will be optimized if the catalog that contains the task force created the products and pricing that is clear and complete.
Persepsi Konsumen atas Merek Lokal dan Asing Pada Kategori Produk Hedonik dan Utilitarian
Authors: Kussudyarsana Kussudyarsana
Published: October 2017

The objective of the research is to examine the relationship between perception of local and foreign brand toward quality product and price dimension. In order to investigate the perception toward local and foreign branding, this study used  hedonic and utilitarian product. This research used questionnaire to obtain the data. One hundred samples through convinience sampling were used in this research. The result indicate that foreign brand was high score in the perception of quality and price.  The study also found that there was significance differences of perception of price among local and foreign brand.
PENGARUH PENEMPATAN PRODUK DAN KESESUAIAN IKLAN PADA MINAT BELI YANG DIMODERASI SIKAP MEREK DI ADVERGAMES
Authors: Gultom Theresia Mannuela , Kriestian NAN Albert
Published: October 2017

This study was conducted to determine the influence of Product Placement and Congruity Ads toward buying interest which is moderated by consumers’ attitude on “advergames” brand. The participant of this study was 100 students of Satya Wacana Christian University, which consist of 87 male students and 13 female students. All of the participants have ever played “PES 2016” game on their mobile games application. The sampling technique was purposive sampling, with questionnaire as the data collection method. The analysis used in this study was regression analysis interaction. The result showed that there was no moderation effect of product placement and congruity ads toward purchase intention, twotypes of products in the context of the game.
PEMANFAATAN BUAH LOKAL SEBAGAI KOAGULAN SOY CHEESE
Authors: Rakhmah Risza Fawzia , Suryani Titik
Published: October 2017

Keju merupakan salah satu produk pangan dengan proses penggumpalan  protein susu. Penelitian ini memanfaatan buah lokal sebagai koagulan untuk menggumpalkan susu kedelai menjadi keju. Penelitian ini bertujuan untuk mengetahui pengaruh buah lokal sebagai koagulan pada soy cheese terhadap kadar protein, organoleptik dan daya terima masyarakat. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) 2 faktor 6 taraf perlakuan  yaitu faktor 1:  jenis buah (nanas, jeruk lemon dan asam sitrat (kontrol ) dan konsentrasi (0,12 %; 2%; 3 %), masing-masing perlakuan dilakukan 3 ulangan. Metode penelitian yang digunakan adalah metode eksperimen, observasi, kepustakaan dan dokumentasi. Pengujian kadar protein menggunakan metode biuret, analisis data kadar protein menggunakan uji Two Way ANOVA dan dilanjutkan dengan uji Duncan’s Multiple Range Test (DMRT), sedangkan pada pengujian organoleptik dan daya terima masyarakat menggunakan analisis deskriptif kualitatif berupa data angket. Hasil penelitian menunjukkan bahwa Kadar protein tertinggi soy cheese  pada perlakuan ekstrak nanas 3 % sebesar 11,68g,  sedangkan kadar protein terendah soy cheese  pada perlakuan ekstrak jeruk lemon 3 % sebesar 4,57 g. keju paling dominan bertekstur lembut, warna putih tulang, rasa gurih dan sedikit asam. Daya terima panelis  menyukai keju  dengan penambahan ekstrak jeruk lemon 3 %. Penambahan ekstrak nanas dan jeruk lemon sebagai koagulan pada  soy cheese berpengaruh terhadap kadar protein.
OPTIMALISASI KOMPOSISI PENYUSUN BRIKET BERBAHAN LOKAL SEBAGAI PAKAN SAPI
Authors: Suwarno Suwarno , Maridi Maridi , Saputra Alanindra , Sari Dewi Puspita
Published: October 2017

Penelitian ini bertujuan untuk mengetahui komposisi optimal bahan dalam pembuatan briket pakan sapi.  Penelitian ini menggunakan metode eksperimen dengan analisis deskriptif kuantitatif dan kualitatif dengan rancangan penelitian adalah Rancangan acak lengkap ( RAL ). Teknik pengambilan data dilakukan 3x sehari selama 7 hari. Data yang diambil adalah sisa pakan pada setiap pemberian ransum. Teknik analisis data dengan analisis varians (ANAVA). Kesimpulan dari penelitian ini adalah komposisi briket paling optimal adalah pada rancangan percobaan RS3 yaitu dengan komposisi hijauan 50, molase 30, dedak 10 dan garam 10.
PENGARUH CAHAYA DAN TEMPERATUR TERHADAP PERTUMBUHAN TUNAS DAN PROFIL PROTEIN TANAMAN ANGGREK Phalaenopsis amabilis TRANSGENIK PEMBAWA GEN Ubipro::PaFT
Authors: Putra Rinaldi Rizal , Mercuriani Ixora Sartika , Semiarti Endang
Published: October 2017

Penelitian ini bertujuan untuk mencari kondisi yang tepat dalam percepatan pembungaan tanaman Phalaenopsis amabilis transgenik yang telah disisipi gen penentu waktu pembungaan Ubipro::PaFT. Metode penelitian ini menggunakan tanaman transgenik pembawa gen Ubipro::PaFT umur 18 bulan setelah penanaman. Tanaman ditumbuhkan pada inkubator dengan pencahayaan menggunakan lampu LED putih dan kombinasi LED putih biru, dengan fotoperiodisitas 8 jam terang 16 jam gelap, suhu 25ºC pada fase terang dan 20ºC pada fase gelap selama 20 minggu. Setelah 20 minggu pertumbuhan tanaman, dilakukan analisis profil protein dengan metode SDS-PAGE untuk mengetahui protein yang diproduksi pada setiap fase pertumbuhan yang diamati.Hasil penelitian menunjukkan kombinasi cahaya LED putih dan biru meningkatkan pembentukan daun sebesar 60%, panjang daun 70,58%, tetapi belum diperoleh kemunculan infloresen. Analisis profil protein menunjukkan terbentuknya protein dengan ukuran 108,57; 71,30; 56,16; 40,85; 26,79; 13,27; dan 13,12 kilodalton pada tanaman transgenik, tetapi tidak terdeteksi protein dengan ukuran 19,65 kDa yang sesuai dengan berat molekul protein PaFT, sementara protein dengan ukuran sekitar 56,16 kDa sesuai dengan berat molekul protein POH1(Phalaenopsis Orchid Homeobox1). Hal ini menunjukkan bahwa gen vegetatif POH1 mampu menghambat aktivasi gen PaFT pada tanaman P. amabilis transgenik umur 20 minggu, sehingga tanaman masih dalam fase juvenil dan belum mampu diinduksi untuk berbunga.