bluuebunny/crossref_metadata_2025 huggingface dataset:
Transformation of World Automotive Industry
Authors: Sushkevich P. P.
Published: October 2018

The world industry is on a threshold of a new development cycle which is characterized by emergence of breakthrough technologies: distributed ledger technology, drone-type devices, 3D printing, virtual reality, Internet of things, augmented reality etc. Due to these technologies fundamental changes will take place in the majority of economic branches. The automotive industry is not an exception. This industry plays one of the key roles in economy in a great number of countries and changes occurring in it lead not only to creation of new products, technical processes but these changes also entail improvement of the industrial base which has been already created. The Republic of Belarus considers an automotive industry as one of key industries for its economy and its efficiency has a high dependency factor pertaining to speed of innovation emergence and implementation that is strategically important aspect of increase in competitiveness both on current sales markets and on potential ones. The paper pays a special attention to two main trends arising in the course of forming a new industrialization: increase in environmentally-friendly fuel systems and digital transformation. Problems of world ecology have exerted a considerable impact on developments in the field of alternative energy sources. Speed of development and promotion of electric vehicles considerably exceed “breakthrough” innovation developments of the past. However a great number of factors can have a significant effect on the future of electric vehicles and two of them are thoroughly considered in the paper: cost of energy (batteries) and price of oil (at the price of about 20 USD for barrel the development rate will considerably decrease). Besides the matter of environmental friendliness the paper pays attention to services of digital transformation. The world has already presented examples pertaining to usage of remote control for dump trucks, telematics etc. Such an approach makes it possible for organizations to optimize substantially an expenditure budget and doing so we increase resource use efficiency. The paper also contains a review of innovations in the automotive industry of the Republic of Belarus: BelGee electric cars, Belkommunmash electrobuses, developments of large industrial equipment.
Study of Proportional Pressure Modulator on the Basis of Electromagnetic-Type Linear Motor
Authors: Zalohin M. Yu. , Liubarskyi B. A. , Schuklinov S. N. , Mychalevych M. G. , Leontiev D. V.
Published: October 2018

The paper deals with a workflow of a proportional pressure modulator equipped with a linear electric motor of electromagnetic type (LEMET). A schematic diagram consisting of a power supply and control system has been constructed to determine the performance of LEMET. The power supply system is a self-contained half-bridge inverter. The converter input is supplied with 12 V DC voltage. The motor phase is powered by an inverter which includes transistor switches and diodes. The control system of the autonomous inverter consists of two channels – a current limiting channel and a linear transfer channel. The study is based on the results of numerical and simulation modeling of LEMET workflows. Numerical simulation is performed and investigated by a finite element method in the FEMM environment. Geometry of the LEMET model lies in the region of air with an electromagnetic permeability of 1. An initial radius of the grid generation for the working gap area is 0.5 mm, while for other areas an adaptive generation method has been applied. In order to determine a continuous power function at any point within a current variation interval i and a displacement x current linkage and electromagnetic force functions have been approximated by polynomials use of the Curve Fitting application. The simulation LEMET model of a proportional modulator has been built in the MatLab Simulink environment. The implicit Runge-Kutta method using the secondorder inverse differentiation formulas with a variable step has been applied for solution of a mathematical model in the MatLab Simulink system. The equation of an electrical circuit for an inductor motor phase has been compiled according to the second law of Kirchhoff. The LEMET traction characteristics have been obtained by moving a locking and adjusting element (LCE) from 0 to 6 mm in steps of 1 mm while changing the MMF in the winding from 0 to 2 A in steps of 0.1 A. It has been established that in order to move the LCE by 6 mm with the speed of 40 mm/s with a resolution of 0.15 mm, the maximum value of the current in the LEMET winding is equal to 2.5 A. In this case the value of the electromagnetic force is 120 N. This makes it possible to improve an accuracy of the brake drive pressure regulation by 12.3 %. Solutions have been proposed to increase the LEMET speedwork. Characteristics of the engine have been described and numerical parameters of LEMET have been determined in the paper. The developed simulation model allows to investigate functional properties and dynamic characteristics of the proportional modulator with a relative error of 4.07 %.
Büyük Menderes Grabeninde Cisim Dalgalarının Frekans Bağımlı Soğrulma Karakterinin Belirlenmesi
Authors: DEMİRCİ Alper , BEKLER Tolga
Published: October 2018

Bu çalışmada,
Büyük Menderes grabeninin kuzey sınırı boyunca gelişen fay toplulukları ve
bunların Ege Denizi’ne doğru uzantıları boyunca oluşmuş 66 deprem verisi
kullanılarak bölgeye ait soğrulma karakteristikleri ortaya konmaktadır.
Çalışmada, P ve S dalgalarının soğrulma fonksiyonları, koda normalizasyon
tekniği ile hesaplanmıştır. Çalışma
kapsamında elde edilen sonuçlar, bölgede veya yakın civarında gelecekte olması
muhtemel büyük depremlerin daha doğru bir şekilde modellenebilmesi ve sismik
risk çalışmalarının da daha güvenilir sonuçlar elde edilmesi için gerekli olan
temel parametrelerden biri olan sönüm ilişkilerini ortaya koymaktadır.  Buna göre, S ve P sismik fazları için
sırasıyla, Qs=79.2±14.6f 0.9±0.07 ve Qp=32.9±13.7f1.05±0.16
fonksiyonları elde edilmiştir. Ayrıca 1 Hz’ den büyük frekanslarda QS/QP
oranı ortalama ~1.75 olarak hesaplanmıştır. Elde edilen sonuçlara göre düşük Qp
ve Qs değerleri ve bunların oranları (QS/QP) saçılma
etkisinin fazlalığını işaret etmekte ve bunun da çalışma alanındaki özellikle üst
kabuktaki yoğun yanal heterojenitenin bir sonucu olduğu şeklinde
yorumlanabilmektedir.
The relationship between the Nasdaq Composite Index and energy futures markets
Authors: Gurrib Ikhlaas
Published: October 2018

This paper sheds light on the relationship between the Nasdaq Composite Index and a newly proposed Energy Futures Conditions Index (EFCI). While various financial conditions indices provide information about the financial stability of a country, the existence of an energy condition index, using futures markets, is scarce. Using weekly data over the period 1992–2017, this paper introduces an energy futures index using principal component analysis and test its predictability over the Nasdaq Composite Index. The EFCI captures 95% of the variability inherent in crude oil, heating oil and natural gas futures’ total reportable positions. Stability in forecast errors over different lags suggests a one week lag is sufficient to forecast weekly Nasdaq Composite Index. 95% prediction levels support that the estimated model captures actual equity market index values, except for the 2000 technology bubble. Distributions of level data were non-normal, not serially correlated and homoscedastic under the whole sample period, with diagnostics on pre and post technology bubble crisis showing mixed results. While differencing ensured homoscedastic errors in the forecasting model, Granger causality supported non-causality from both energy futures and equity markets, suggesting no evidence of cross market information flows.
12-Hour fixed-dose combination of andrenergic agonist and cholinergic antagonist in a new administration device: analytical review
Authors: Vizel A. A. , Vizel I. Yu.
Published: October 2018

The article presents an analytical review of the use of aclidinium, formoterol, and combination of aclidinium and formoterol to treat chronic obstructive pulmonary disease (COPD) using a metered-dose dry powder inhaler Genuair® to administer a fixeddose combination. It is noted that twelve hours’ double bronchodilating effect has some advantages including the rapid elimination of drugs having minimal systemic effects, significant effect on dyspnoea and exhalation rates, profitability of using this drug. It is proven that Genuair® is a new, patient-friendly, easy to administer at any age powder inhaler with an informative feedback mechanism. All this makes it possible to consider a new fixed-dose combination of bronchodilators in the innovative device to be a promising basic therapy for COPD.
Short antibiotic courses in community-acquired pneumonia in adults: less is better
Authors: Sinopalnikov A. I.
Published: October 2018

Despite considerable progress that has been made in the diagnosis, treatment and prevention of respiratory tract infections, community-acquired pneumonia (CAP) remains a fairly common disease [1-3] that continues to have the status of the leading infectious cause of death in modern humans and claims more lives each year than tuberculosis, meningitis, AIDS and infective endocarditis taken all together [4]. In this case, it is evident that clinical guidelines stating, among other things, approaches to the rational empirical antibacterial therapy (ABT) of the disease are the most effective measures in achieving better outcomes of CAP [5–8]. However, the issue of determining the optimal duration of ABT remains a subject of lively discussions (Table. 1). It is important to note here that the clinical stability of patients with EP can be achieved in most cases during the first 3–5 days of empirical ABT, and it is a rare occasion when the need for long-term prescription of antibiotics arises [12].
New possibilities of pharmacotherapy for chronic obstructive pulmonary disease
Authors: Sinopalnikov A. I. , Romanovskikh A. G. , Belotserkovskaya Yu. G.
Published: October 2018

The use of bronchodilators (DB) remains up to the present day the leading therapeutic strategy for the treatment of chronic obstructive pulmonary disease (COPD), in which case administration of fixed-dose combinations of long-acting bronchodilators seem the most promising. At the same time, the issues of anti-inflammatory therapy of COPD are also actively discussed, first of which is feasibility for the wide use of fixed-dose combinations of inhaled glucocorticosteroids (IHGC) with long-acting β2-agonists (LABA). Recent years are characterized by the launch of a significant number of new BDs, anti-inflammatory drugs and their combinations to the pharmaceutical market. The article considers the role and place of new drugs in the treatment of COPD having a stable course.
Clinical efficacy of anti-ige-therapy in adult patients with severe uncontrolled bronchial asthma in real clinical practice
Authors: Ignatova G. L. , Blinova E. V. , Minakina O. L.
Published: October 2018

The article presents the results of comprehensive assessment of the efficacy of anti-IgE therapy in adult patients with severe IgE-mediated uncontrolled bronchial asthma in real clinical practice. Omalizumab added to the background anti-inflammatory therapy allowed to reduce the incidence of asthma exacerbations, achieve stable positive dynamics during severe asthma and associated allergic diseases, increase control of the disease, and improve the patients’ quality of life. The drug has a wellcharacterized long-term use safety profile.
Pharmacoeconomic aspects of bronchial asthma therapy: real clinical practice
Authors: Belevsky A. S. , Zaitsev A. A.
Published: October 2018

According to official statistics, over 1.5 million people have BA in the Russian Federation. Direct costs associated with the treatment of BA in the Russian Federation amount to 8.5 billion rubles. The socioeconomic burden of BA put on society, along with temporary and permanent disability, is caused by not only direct, but also indirect costs, as well as costs associated with payments for temporary disability, which leads to a decrease in GDP and GRP (internal gross regional product). The pharmacoeconomic comparison of two alternative drug technologies in the studied groups showed a reasonable opportunity to transfer patients to the drugs that have alternatives produced within the country, confirming that the cost per efficiency unit in using Formisonide-Native and SalticasoneNative is lower than that of drugs produced by a foreign pharmaceutical company (Symbicort Turbuhaler and Seretide Multidisk)
Acute respiratory diseases: progression features, pharmaceutical therapy
Authors: Orlova N. V. , Suranova T. G.
Published: October 2018

Acute respiratory diseases (ARD) are widespread diseases and are of great social importance. Diagnosis of acute respiratory infections implies the damage to the respiratory system caused by a wide range of pathogens. Among the pathogens of acute respiratory infections are viruses of acute respiratory viral infection (ARVI) group, including influenza, as well as fungal and bacterial pathogens, which include intracellular bacteria: mycoplasma and chlamydia. Diseases caused by intracellular pathogens are treated by antibacterial drugs that can easily penetrate the cells and create there high concentrations.
Actual aspects of use of ergoferon in outpatient polyclinic practice
Authors: Fesenko O. V.
Published: October 2018

Acute respiratory infections (ARI) and influenza are referred to the most common diseases among children and adults. Despite a wide choice of medications for this pathology, we still need ones that combine a multipurpose antiviral activity, have proven effectiveness and safety and enable application in patients from risk groups, including allergic diseases. The pharmacological activity of a release-active drug Ergoferon is determined by the complex action of its components on antiviral immune response and virus-induced inflammation in the respiratory tract. Each component at the same time has its own target modulating action, which is a distinctive property of release-active antibodies forms. The article presents an overview of Russian and foreign publications, summarizing the results of preclinical and clinical studies effectiveness and safety of the Ergoferon use for treatment and prevention of acute respiratory infections and influenza in patients of different age groups.
Investigate of the influence of pin deviation on the biomechanical environment of fixator-bone system by finite element method
Authors: Li Jianfeng , Zhao Xia , Tao Chunjing , Ji Run
Published: October 2018

Unilateral external fixators are widely used in orthopedics to stabilize fractured bones and in the treatment of limb deformities. Vivo mechanical environment inside and around the fixator may influence the healing of fractured bone. Due to the existence of pin deviation may affect biomechanical environment of callus in the fracture gap. Finite element analysis was used to investigating stress and deformation of fixator-bone system under axial load, torsional load and bending load, comparing the biomechanical properties of two fixator structures: the one has pin deviation angle, the other has no pin deviation angle. These results reveal that the existence of pin deviation would affect the biomechanical environment of fractured bone. When fixator-bone system under three kinds of load, the stress and deformation of fixator-bone system were greater than that of fixator-bone system without pin deviation. This work provides orthopedics doctor useful information to predict the micromovements of fixator-bone system.
Rupture stress of eutectic composite ceramics with rod-shaped crystals
Authors: Yu Jinfeng , Ni Xinhua , Liu Xiequan , Du Zhihong , Xu Da
Published: October 2018

Eutectic composite ceramics has a wide range of applications in the aerospace industry due to its excellent mechanical properties. The rupture stress of the materials is a subject of considerable importance. Eutectic composite ceramics primarily consist of rod-shaped crystals, with a small amount of particles and preexisting defects dispersed throughout. Aligned nano-micron fibers are embedded within the rod-shaped crystals. Rupture stress of a eutectic composite ceramic depends on its fracture surface energy and preexisting defects. In this study, the equivalent fracture surface energy of a eutectic ceramic composite was calculated based on its additional fracture work. Next, the effects of the preexisting defects were considered. Then, a micromechanical model of the eutectic composite ceramic was established based on its microstructural characteristics. The defects were assumed to be lamellar, and the surrounding matrix was assumed to be transversely isotropic. Using this information, the rupture stress of the eutectic ceramic composite was predicted. A comparison of the theoretical and experimental results indicated that the predicted rupture stresses corresponded with the tested data.
Research on measuring method of shot exit time for muzzle vibration analysis
Authors: Wang Baoyuan , Li Bing , Du Wenbin , Zhang Pengfei
Published: October 2018

The measurement of shot exit time is very important to measuring data analysis of muzzle vibration. Optoelectronic method, which is based on the optical-electrical conversion theory and timed with the muzzle flame, is a general method of measuring the shot exit time for the major caliber gun. However, it has not been identified that the shot exit time corresponds to which characteristic point in the voltage pulse time signal curve obtained by the optoelectronic method. In this paper, by combining the high speed digital photography and the optoelectronic method, both the triggering time signal of the high speed digital photography and the voltage signal output by the optoelectronic sensor were obtained simultaneously. Then by comparing the voltage time curve of the optoelectronic sensor with the photographs obtained by the digital photography, the relationship between the characteristic points in the signal curve and the shot exit time was identified. It has been shown that, the voltage pulse beginning time is the same with the muzzle flame beginning, which is later than the time when the projectile band leaves from muzzle.
Research of multi-concurrent fault diagnosis of rotating machinery based on VMD and KICA
Authors: Sun Hongchun , Fang Liang
Published: October 2018

In order to improve the multi-concurrent fault diagnosis of rotating machinery, a feature extraction method based on variational mode decomposition (VMD) and kernel independent component analysis (KICA) is proposed. First, use VMD to improve the dimension of single-channel vibration signal. Then, calculate the correlation coefficient between the signal of each dimension and the original signal. Finally, high correlation signals are used to form a new observation signal and the fault signals will be extracted by KICA. Compared with ensemble empirical mode decomposition (EEMD) + fast independent component analysis (FastICA), the better performance of the proposed method is demonstrated by an analysis of rolling bearing with the fault of inner ring and outer ring mixed. Furthermore, an experiment with the fault of outer ring of rolling bearing and gear breaking mixed verifies the effectiveness of this method. The result demonstrates that the proposed method is efficient for fault diagnosis of single-channel vibration signal of rotating machinery with multi-concurrent faults.
Analysis of friction force of magneto-rheological damper with a novel mathematical model
Authors: Li Guo Jie , Chai Mu , Pang Xuedong
Published: October 2018

There are many conflicting viewpoints for friction force of MR damper. Readers may be lost in facing these conflicting viewpoints. In this study, a novel model of friction force of MR damper is proposed. This model tries to reveal the essence and help readers have a better understanding of friction force of MR damper. The model indicates that the friction force only relates to the current applied to the piston coil. The friction force will increase along with current applied to the piston coil. Friction force tests for a MR damper featuring bypass holes in piston were made on a MTS852 system. The model was improved to be correct by the experiment. Friction forces by calculation with the model and by experiment are in good agreement. It is believed that sliding friction and MR phenomenon contribute to the friction force.
A single neuron PID control method based on Smith predictor for active balancing control of rotor with time-delay
Authors: Zhang Li , Zhao Yang , Xu Juan , Lu Yang
Published: October 2018

Time-delay is a key problem affecting the performance of active balancing control. In this paper, a single neuron PID control method based on Smith predictor for active balancing control of rotor with time-delay is proposed. The dynamic model of rotor is built by simplification firstly in the paper. Based on this dynamic model, a compensation model of time-delay rotor system is constructed, and a single neuron PID control method is designed to reduce rotor vibration. The parameters of controller can be adjusted adaptively and active balancing control of rotor with time-delay is realized efficiently. The simulation shows that the proposed method is superior to the traditional Smith predictor method in control performance. Particularly the proposed method still has good effect on control of rotor with large time-delay.
Study on experiment measurement method of braking force of muzzle brake for vibration analysis
Authors: Wang Baoyuan , Heng Gang , Wang Dongying
Published: October 2018

The braking force of the muzzle brake affects not only the strength of the connection thread of the muzzle brake, but also the vibration response of the artillery structure. Due to the complex formation process of the braking force of the muzzle brake, the current theoretical calculation method is used to estimate. This paper presents an experimental measurement method for artillery force of muzzle brake, which describes the measurement principle and deduces the calculation formula. The small-caliber cannon with muzzle brake is selected as the test object. A verification shooting experiment is carried out to obtain the size of the artillery force of the muzzle brake. The measurement values of the artillery force are basically consistent with the theoretical ones. The measurement method and principle introduced in this paper can be applied in the actual artillery force measurement of the muzzle brake. In this paper, the strain measurement principle is used to complete the experimental test of the braking force of the muzzle brake. This paper innovatively proposes a new method for testing the braking force, which has the advantages of simple operation, no need to manufacture special tooling, and low cost.
Fatigue life prognostic for medium-carbon steel based S-N curve computation and deep autoencoder
Authors: Li Xu , Li Xueyi , Li Changyou , He David
Published: October 2018

Medium-carbon steel is widely used in architecture, rail, machinable steel and so on. So, there is a huge significance in the analysis and research of its fatigue life. In this paper, the fatigue experiment with different surface roughness was set up. In the experiment, there were three type of roughness and a total of 75 experiments were performed. Then a deep autoencoder to model the relationship of roughness (R), stress (S), and fatigue life (N). It has been found that the method can automatically extract the features which can be used to effectively model the relationship of R, S and N. Finally, the approach presented was compared with the existing model based on Tanaka-Mura theory and got an unexpected better result.
Simulation and experimental investigation of high-speed projectile impacting closed-cell aluminum foam
Authors: Chao Hongxiao , Lei Qiang , Du Wenbin , Ding Guang Yu , Li Bo , Feng Jingwei
Published: October 2018

In order to analyze the impact acceleration of the projectile impacting the aluminum foam material, a dynamic non-linear finite element model of the projectile impacting the closed-cell aluminum foam experiment device was established and verified by the experiment. It is found that the numerical simulation results of projectile impact closed-cell aluminum foam are consistent with the change of experimental results. When the projectile impacts the homogeneous closed-cell aluminum foam, the impact acceleration is trapezoidal and the impact peak and pulse width are related to the density of the aluminum foam material. With the increase of the porosity of the aluminum foam, the peak value of the acceleration rises and the pulse width of acceleration decreases.
Axis current damage identification method based on bispectral locally preserving projection
Authors: Wang Guangbin , Wen Yi , Li Xuejun , He Yinghang
Published: October 2018

A bispectral locally-preserving projection fault identification method is proposed. Fault pattern recognition is performed using a support vector machine (SVM). The experimental results show that the method can effectively identify the current damage of the bearing shaft, and the classification accuracy of the bearing fault containing the shaft current damage can reach more than 96.25 %.
Dynamic modeling and sliding mode control of single cylinder double annular channels MRF damper
Authors: Zheng Pengfei , Hou Baolin
Published: October 2018

In order to satisfy the adjusting of recoil system of the gun to different firing conditions, a magneto-rheological fluid (MRF) damper with double annular channel is proposed, which can satisfy the maximum recoil displacement and reduce the force acting on the gun carriage. The double annular channels MRF damper has less zero field damping force and has a larger range of resistance regulation. The dynamic model of MRF damper considering inertia effect is established, and the mechanical properties of MRF damper are tested. The experimental results shown that the calculated values are in good agreement with the experimental values. According to the gun recoil dynamic model of MRF damper, a sliding mode tracking controller based on constant velocity reaching law is designed, and the recoil process of the gun is simulated. The results shown that the MRF damper damping force under the sliding mode control algorithm has a plateau effect, which can be used in the recoil motion control of the gun.
Contact parameters identification of a cannon cradle and its bushing based on FDA and ELM
Authors: Wen Hao , Hou Baolin
Published: October 2018

An identification method based on functional data analysis (FDA) and extreme learning machine (ELM) is presented to identify the contact parameters of a cannon cradle and its bushing. A virtual prototype of the cannon is built in ADAMS. The response curves of muzzle vertical acceleration with different contact parameters of the cradle and its bushing are obtained by simulation experiments and used for FDA as sample data. Features of the sample data are extracted by FDA and functional principle component analysis (FPCA), and the features and contact parameters are used to train the ELM. Simulation data and test data are used to verify the proposed method. The presented method is also proved to be feasible and effective by comparing actual muzzle vertical acceleration curve and the muzzle vertical acceleration curve from the virtual prototype with respect to the test data identification results.
Parameters identification of a cannon counter-recoil mechanism based on PSO and interval analysis theory
Authors: Bao Dan , Hou Baolin
Published: October 2018

In this paper, two methods based on PSO algorithm and interval sequence conversion model or interval analysis theory are proposed to identify two kinds of uncertain parameters of a cannon counter-recoil mechanism during the manual recoil and forward moving process. Before identifying, some test data were obtained during the manual recoil process. Then, the uncertain parameters were described by interval number and a mathematical model about recoil process of a cannon was built. Taking the similarity degree of time-series data as an optimization objective function, Particle Swarm Optimization (PSO) algorithm was used to solve the deterministic optimization problem which was transformed by interval sequence conversion model, and the parameter identification of recuperator in the manual recoil process of a cannon was achieved. On this basis, combining PSO algorithm and Krawczyk algorithm of interval analysis theory, the uncertain parameters of recoil brake were identified. Finally, the results of identification proved that the above-mentioned two methods had a relatively high identification accuracy.
Low frequency acoustic energy harvesting adopting slit Helmholtz resonator
Authors: Yuan Ming , Wang Xiaohui , Ding Zhenjun
Published: October 2018

In this study, a novel acoustic energy harvesting (AEH) device is proposed to realize low frequency acoustic energy harvesting in broadband. Based on the classical Helmholtz resonator, a novel AEH device with slits is proposed. The AEH components and mechanisms are analyzed, followed by an experimental evaluation of the fabricated sample. Experimental results show that for the proposed AEH device, the bandwidth near the acoustic resonant frequency is extended, which can be attributed to the thermos-viscous damping mechanism. This type of attribute is favorable for resonance tuning and increasing the adaptability of the AEH device. Under 100 dB sound pressure level (SPL) excitation, the measured harvested electrical power is 2.4 µW.
Coupling dynamic stiffness identification of mechanical assembly with linear connection by the second indirect scheme of inverse substructuring analysis
Authors: Lu Guang Qing , Xu Kun Peng , Peng Wen Bin , Ragulskis Minvydas , Wang Bo
Published: October 2018

A non-ideal connection of mechanical assembly with linear assembling interface is firstly considered in the coupling dynamic stiffness identification by applying the second scheme of indirect inverse substructuring analysis. The experimental model of the mechanical assembly is designed, and the interface is then discretized equivalently as ideal point-coupling for testing the frequency response functions (FRFs) involved in the scheme. As the results of the experimental study, applying the scheme is verified to be feasible for the stiffness identification of a mechanical assembly with linear connection, and the identified stiffness approaches to be stable with increase of the number of discretized points.
The impact-resistance analysis of a fastening belt of an underwater vehicle life raft
Authors: Wang Jie , He Shiping
Published: October 2018

In this paper, the impact resistance of a fastening belt of the underwater vehicle life raft is studied, which is based on Germany BV043/85 standard. Performing finite element simulation for the fastening belt with ANSYS Workbench software. Calculating the deformation and stress distribution of the fastening belt under impact loading. This method can accurately reflect the impact resistance of the fastening belt. Comparing with the design requirements can verify the reliability of the fastening belt.
Horizontal dynamic response of a tubular pile based on the Timoshenko theory
Authors: Fang Hui , Qiao Weiguo
Published: October 2018

Horizontally vibrating characteristics of a tubular pile in saturated soil layer are studied in this paper. Governing equations of the pile is deduced based on the popular Timoshenko theory. Analytical solutions of the pile response are derived based on the continuous boundary conditions in the pile-soil interface. Accordingly, analytical expressions of the pile impedances are obtained. Based on it, a comparison with the Euler-Bernoulli Model is performed to verify this solution. Parametric analyses are carried out to study horizontal responses of the tubular pile.
Supply groove effects on characteristics of squeeze film damper
Authors: Kong Xudong , Luo Guihuo
Published: October 2018

Variation of film pressure was studied by short bearing hypothesis and differential method for grooving on film inner-face. The results were compared with those of FLUENT analysis. Then, effects of the position of groove were studied on film pressure and damping through differential method. The results shown that short bearing hypothesis cannot conform to the actual situation considering grooving. The effect of grooving on the pressure distribution of film was researched by differential method, and the results are consistent with the FLUENT simulation analysis. Side grooving has less effect on film pressure and damping, so it is recommended when the design and assembly conditions are allowed.
Sensitivity analysis of leaf blower vibration isolator based on ISIGHT
Authors: Yu Wenbin , Sun Beibei , Li Chuang
Published: October 2018

In order to reduce the optimal design space of the vibration isolator, a sensitivity analysis method based on ISIGHT for the leaf blower vibration isolator was proposed in this paper. Parametric modeling of the isolator was realized by Solidworks, Hypermesh, Optistruct and ADAMS, and a multi-software co-simulation working framework based on ISIGHT was established. Taking the design parameters of the vibration isolator as the variable and the minimum transmission force as the optimization, Sensitivity analysis of the vibration isolator was carried out based on the Latin Hypercube. The results show that the length of the vibration isolator has the greatest influence on the vibration isolation and the contribution of d1, d3, D3 and E3 is the smallest. The result provided a guiding significance for the design optimization of the vibration isolator.
Parametric design and optimization of engine disc
Authors: Yang Ze-dong , Luo Guihuo , Liu Han
Published: October 2018

With the development of science and technology, traditional design methods can no longer meet the needs of modern design and production development. Parametric and optimal design has become one of the most popular application technologies in CAD. Parametric and optimal design was studied based on VB.net language for secondary development of AutoCAD and MATLAB language for secondary development of ANSYS Apdl for disc of aero-engine. The structural parameterization technology was used to realize the rapid forming, and genetic algorithm retains elite was used to optimal design. The optimal design was carried out by using the developed software in this paper, and the optimal results shown that the disc weight was reduced by 34.48 %, the reduction effect of weight was obvious.
Experimental verification on applying indirect inverse substructuring analysis to identify coupling dynamic stiffness of mechanical assembly via planar surface
Authors: Lu Guang-qing , Xu Kun-peng , Peng Wen-bin , Ragulskis Minvydas , Wang Bo
Published: October 2018

To broaden the engineering application of inverse substructuring analysis, the mechanical assembly via planar surface is experimentally studied. Specifically, the first and the second schemes of indirect inverse substructuring analysis are applied to identify the coupling dynamic stiffness of the assembly. The experimental model of the assembly is designed, and the surface is then discretized equivalently into point-to-point connections for testing the frequency response functions (FRFs) involved in the schemes. Experimental results show that, applying both of the schemes are feasible for the identification, and the identified stiffnesses approach to be stable as the number of discretized points increases.
Simulation of ultrasonic vibration in a liquid aluminum bath for sapphire surface modification
Authors: Cui Wei , Chen Longfei , Zhou Yudong , Li Shuqi
Published: October 2018

Ultrasonic vibration has been found to play a significant role in promoting surface nano-crystallization of sapphire in a liquid aluminum bath. And the distribution of the vibration field is critical in controlling the modification procedure. Here, distribution of the ultrasonic vibration in a liquid aluminum bath was investigated by finite element method (FEM). Effects of shape of the ultrasonic horn and distance between the horn and the sapphire plates were investigated. It was found that the ultrasonic vibration density is high in the area adjacent to the ultrasonic horn. The distance between the horn and the plates significantly influence the vibration distribution. And the vibration density decreased significantly at the liquid/solid interface, indicating obvious energy absorption there. Vibration energy grads can be formed on sapphire surface. And this phenomenon shall be used to achieve different aims.
Microbiological water quality of the sacred River Bhagirathi, Garhwal Himalaya, India
Authors: Sharma Nidhi , Kumar Rahul , Sharma Ramesh C.
Published: October 2018

Water quality of the sacred River Bhagirathi was evaluated by microbiological and physico-chemical characteristics of water. Monthly water samples were collected from the upper zone (1,158–4,100 m a.s.l.) to lower zone (457–1,158 m a.s.l.) of the river for a period of two years during October, 2013 to September, 2015. The data on microbial density revealed that CFU count was minimum (13,185 CFU. ml−1) in the winter season and maximum (36,410 CFU.ml−1) in the monsoon season, when the degradation of water quality was maximum due to mixing of a large amount of allochthonous materials from the catchment area. No total coliform (TC) and fecal coliform (FC) was found in the water samples from Gaumukh (4,100 m) to Gangotri (3,140 m) during the two-year sampling period due to minimum anthropogenic pressure. However, total coliform and fecal coliform were recorded downstream of Gangotri (TC: 980 and FC: 120) and Harshil (TC: 1,100 and FC: 200). Microbial density was recorded to be high in the lower stretch: Uttarkashi (TC: 2,850 and FC: 860) Tehri (TC: 5,000 and FC: 4,200), and Deoprayag (TC: 3,800 and FC: 2,700). A total of 14 bacterial, four actinomycetes, and 11 fungal species were found in the Bhagirathi River.
Bioinformatics and Therapeutic Insights on Proteins in Royal Jelly
Authors: Hossen Md. Sakib , Nahar Taebun , Gan Siew Hua , Khalil Md. Ibrahim
Published: October 2018

Background:

To date, there is no x-ray crystallography or structures from nuclear magnetic resonance (NMR) on royal jelly proteins available in the online data banks. In addition, characterization of proteins in royal jelly is not fully accomplished to date. Although new investigations unravel novel proteins in royal jelly, the majority of a protein family is present in high amounts (80-90%).

Objective:

In this review, we attempted to predict the three-dimensional structure of royal jelly proteins (especially the major royal jelly proteins) to allow visualization of the four protein surface properties (aromaticity, hydrophobicity, ionizability and (hydrogen (H)-bond) by using bioinformatics tools. Furthermore, we gathered the information on available therapeutic activities of crude royal jelly and its proteins.

Methods:

For protein modeling, prediction and analysis, the Phyre2 web portal systematically browsed in which the modeling mode was intensive. On the other side, to build visualized understanding of surface aromaticity, hydrophobicity, ionizability and H-bond of royal jelly proteins, the Discovery Studio 4.1 (Accelrys Software Inc.) was used.

Results:

Our in silico study confirmed that all proteins treasure these properties, including aromaticity, hydrophobicity, ionizability and (hydrogen (H)-bond. Another finding was that newly discovered proteins in royal jelly do not belong to the major royal jelly protein group.

Conclusion:

In conclusion, the three dimensional structure of royal jelly proteins along with its major characteristics were successfully elucidated in this review. Further studies are warranted to elucidate the detailed physiochemical properties and pharmacotherapeutics of royal jelly proteins.
Alzheimer's Disease Classification Based on Multi-feature Fusion
Authors: Madusanka Nuwan , Choi Heung-Kook , So Jae-Hong , Choi Boo-Kyeong
Published: October 2018

Background:

In this study, we investigated the fusion of texture and morphometric features
as a possible diagnostic biomarker for Alzheimer’s Disease (AD).

Methods:

In particular, we classified subjects with Alzheimer’s disease, Mild Cognitive Impairment
(MCI) and Normal Control (NC) based on texture and morphometric features. Currently, neuropsychiatric
categorization provides the ground truth for AD and MCI diagnosis. This can then be
supported by biological data such as the results of imaging studies. Cerebral atrophy has been
shown to correlate strongly with cognitive symptoms. Hence, Magnetic Resonance (MR) images of
the brain are important resources for AD diagnosis. In the proposed method, we used three different
types of features identified from structural MR images: Gabor, hippocampus morphometric,
and Two Dimensional (2D) and Three Dimensional (3D) Gray Level Co-occurrence Matrix
(GLCM). The experimental results, obtained using a 5-fold cross-validated Support Vector Machine
(SVM) with 2DGLCM and 3DGLCM multi-feature fusion approaches, indicate that we
achieved 81.05% ±1.34, 86.61% ±1.25 correct classification rate with 95% Confidence Interval
(CI) falls between (80.75-81.35) and (86.33-86.89) respectively, 83.33%±2.15, 84.21%±1.42 sensitivity
and 80.95%±1.52, 85.00%±1.24 specificity in our classification of AD against NC subjects,
thus outperforming recent works found in the literature. For the classification of MCI against AD,
the SVM achieved a 76.31% ± 2.18, 78.95% ±2.26 correct classification rate, 75.00% ±1.34,
76.19%±1.84 sensitivity and 77.78% ±1.14, 82.35% ±1.34 specificity.

Results and Conclusion:

The results of the third experiment, with MCI against NC, also showed
that the multiclass SVM provided highly accurate classification results. These findings suggest that
this approach is efficient and may be a promising strategy for obtaining better AD, MCI and NC
classification performance.
Effects of Advance Organizers on Students’ Achievement in Biology in Secondary Schools in Kilifi County, Kenya
Authors: Omondi Kevin K. , Keraro Fred N. , Anditi Zephania O.
Published: October 2018

This study investigated the effects of using advance organizers on students’ achievement in biology in secondary schools in Kilifi County. Solomon Four, Non-Equivalent control group design was used in this study. The study targeted all secondary school students in Kilifi County. The accessible population consisted of all form two students in Kilifi County. Purposive sampling was used to select four co-educational secondary schools in Kilifi County. The four schools were randomly assigned to experimental groups (E1) and (E2) and control groups C1 and C2. A total of 156 students participated in the study. Data was collected using Biology Achievement Test (BAT). The reliability of BAT was estimated using Kuder-Richardson (K-R) 20 and Cronbach’s coefficient. This yielded a reliability coefficient of 0.82 and 0.79 respectively. BAT was validated by experts in science education from Egerton University. The data collected was analyzed using mean, one-way ANOVA and t-test. The level of significance was 0.05. The findings of this study show that there was statistically significant difference in achievement between learners in favour of those taught using advance organizers compared to those taught using conventional teaching methods. The findings also indicate that there was no statistically significant gender difference in achievement.
UTILIZATION OF ECONOMIC RIGHTS IN MUSIC AND SONG WORKS AS A PILLAR OF CREATIVE ECONOMY
Authors: Hartati Dwi Surya , Herlina Nely
Published: October 2018

The work of songs and music is one of several types of artistic works that is protected by the Act of Copyright. Copyright is regulated through Act No. 28 of 2014 About Copyright (Undang-Undang Hak Cipta or UUHC). Creators and Copyright holders have an exclusive right in the form of economic rights and moral rights. Economic rights can be acquired through the payment of royalty. According to the Act of Copyright, the National Collective Management Institution (Lembaga Manajemen Kolektif Nasional or LMKN) is the institution appointed to collect royalties from creators and/or holders of related rights. LMKN is a non-profit legal entity which has been given an authority by Copyright holders and/or holders of related rights to manage the economic rights in legally collecting and distributing royalties. In order to acquire their share in the royalty, each of the creators, Copyright holders, or the holders of related rights has to become a member of LMKN, and in return said LMKN got the authority to collect royalties from users of said artistic works. Royalty is a form of payment or rewards given to creators and/or Copyrights holders over the utilization of economic rights or related rights of a creation or a product. In Indonesia, there are a lot of LMKNs, in which the function is to collect royalties, including collecting exclusive rights of the holders of related rights.

The resulting performance of Collective Management Institutions (Lembaga Manajemen Kolektif or LMK) has not reached its optimum capability for both creators and holders of related rights. The resulting advice of this paper is for the government to create a strict payment system and a method which can also be accessed digitally by the creators.
LAW ENFORCEMENT IN BANKING CRIMINAL ACT INVOLVING INSIDERS
Authors: Arifin Ridwan
Published: October 2018

The rise of news in the mass media related to burglary cases of bank customer funds further raises public awareness of the vulnerability of the banking sector used as a means (crimes through the bank) and as the target of crime against the bank. On the other hand, the awareness is intended to further convince each party that the bank in conducting its business activities must be managed and managed by parties who have integrity and good competence. The purpose of this research is to: (1) analyze and describe the implementation of the rule of law in handling banking criminal case involving insider; and (2) to know and analyze government efforts both preventive and repressive in handling banking crime cases in Indonesia, especially in cases involving insiders. The results showed that the implementation of law in handling banking crime cases in addition to using Law No. 10 of 1998 on Amendment to Law No. 7 of 1992 concerning to Banking (Banking Act), also used several provisions of article in the Criminal Code (KUHP) and Law No. 20 Year 2011 jo. Law No. 31 Year 1999 on the Eradication of Corruption. The role of Bank Indonesia in the enforcement of law in the form of investigation and/or forensic examination of banking crime that occurred in a bank which then the result of investigation is reported to law enforcement in accordance with applicable Criminal Procedure Code. Enforcement and prevention efforts are conducted jointly through the synergy of Bank Indonesia, the Police and the Attorney. In addition, Bank Indonesia also applied the principle of know your customer and compliance function as a preventive effort for banking crime. The weakness of internal controls is the cause of the ineffectiveness of handling of banking crime cases, especially those involving insiders, a memorandum of understanding between Bank Indonesia, the Police and the Attorney Office is only a moral obligation, should be more binding so that it can become one of the more powerful law enforcement tools.