bluuebunny/crossref_metadata_2025 huggingface dataset:
Two‐dimensional polynomial type canonical relaxation oscillator model for p53 dynamics
Authors: Demirkıran Gökhan , Kalaycı Demir Güleser , Güzeliş Cüneyt
Published: February 2018

p53 network, which is responsible for DNA damage response of cells, exhibits three distinct qualitative behaviours; low state, oscillation and high state, which are associated with normal cell cycle progression, cell cycle arrest and apoptosis, respectively. The experimental studies demonstrate that these dynamics of p53 are due to the ATM and Wip1 interaction. This paper proposes a simple two‐dimensional canonical relaxation oscillator model based on the identified topological structure of ATM and Wip1 interaction underlying these qualitative behaviours of p53 network. The model includes only polynomial terms that have the interpretability of known ATM and Wip1 interaction. The introduced model is useful for understanding relaxation oscillations in gene regulatory networks. Through mathematical analysis, we investigate the roles of ATM and Wip1 in forming of these three essential behaviours, and show that ATM and Wip1 constitute the core mechanism of p53 dynamics. In agreement with biological findings, we show that Wip1 degradation term is a highly sensitive parameter, possibly related to mutations. By perturbing the corresponding parameters, our model characterizes some mutations such as ATM deficiency and Wip1 overexpression. Finally, we provide intervention strategies considering our observation that Wip1 seems to be an important target to conduct therapies for these mutations.
Coherent curvature radiation and fast radio bursts
Authors: Ghisellini Gabriele , Locatelli Nicola
Published: February 2018

Fast radio bursts are extragalactic radio transient events lasting a few milliseconds with a ~Jy flux at ~1 GHz. We propose that these properties suggest a neutron star progenitor, and focus on coherent curvature radiation as the radiation mechanism. We study for which sets of parameters the emission can fulfil the observational constraints. Even if the emission is coherent, we find that self-absorption can limit the produced luminosities at low radio frequencies and that an efficient re-acceleration process is needed to balance the dramatic energy losses of the emitting particles. Self-absorption limits the luminosities at low radio frequency, while coherence favours steep optically thin spectra. Furthermore, the magnetic geometry must have a high degree of order to obtain coherent curvature emission. Particles emit photons along their velocity vectors, thereby greatly reducing the inverse Compton mechanism. In this case we predict that fast radio bursts emit most of their luminosities in the radio band and have no strong counterpart in any other frequency bands.
Modification of growth medium of mixed-culture species of microalgae isolated from southern java coastal region
Authors: Sudibyo Hanifrahmawan , Purwanti Yuni , Pradana Yano Surya , Samudra Thoriq Teja , Budiman Arief , Suyono Eko Agus
Published: February 2018

Globally, there is growing interest in microalgae as production organisms. Microalgae contain lipids (oil), proteins and carbohydrates (sugars), and, especially marine algae have been used as food and feed for centuries. Recently, production cost reduction related to the supply of growth nutrients is necessary to make it profitable. Therefore, utilization of molasses, a byproduct of sugar production, as the natural carbon, macronutrients, and micronutrients sources can be helpful. The analysis showed that the content of sucrose, glucose, fructose, potassium, zinc, and magnesium was 68.4% w/w, 18.5% w/w, and 13.1% w/w, 5.5% w/w, 3.91 ppm, and 1,370 ppm respectively. This work aimed to determine the effect of molasses addition to the physio-chemical properties of multi-culture species of microalgae isolated from southern Java coastal region in Indonesia grown under mixotrophic culture. The cultivation in this work used medium which was self-formulated by the authors consisting of NaNO3 (5 mL/L), H3BO3 (1 mL/L), EDTA (1 mL/L), N2H2PO4 (5 mL/L), FeSO4 (1 mL/L), MgSO4 (1 mL/L), NaCl (1 mL/L), micronutrients (1 mL/L), vitamin B1 (1 mL/L), and vitamin B12 (1 mL/L) in 500 mL of water. The medium will be treated to have molasses concentration of 0.05% v/v, 0.15% v/v, 0.25% v/v, 0.35% v/v, and 0.45% v/v.
Increased lipids production of Nannochloropsis oculata and Chlorella vulgaris for biodiesel synthesis through the optimization of growth medium composition arrangement by using bicarbonate addition
Authors: Dianursanti  , Agustin Zenitha Lintang , Putri Dwini Normayulisa
Published: February 2018

Chlorella vulgaris and Nannochloropsis oculata are a highly potential microalgae to be used in pilot-scale of biodiesel synthesis. The essential content from these microalgae is the fatty acid of lipid which is the main target for the feed and biodiesel industries. One of the key factor in improving lipid microalgae are the arrangemment of nutrients in the growth medium. Research on the regulation of nutrients using bicarbonate (HCO3-) as an additional inorganic carbon source has been done by many studies, but the yield of lipids obtained has not been much. The aim of the study was to improve the lipid yield of Chlorella vulgaris and Nannochloropsis oculata. Variation of [HCO3-] which added to Walne medium were 25 ppm and 75 ppm, while the Walne medium without the addition of bicarbonate acts as control. The results showed that [HCO3-] 75 ppm could increase Chlorella vulgaris biomass by 0.9162 g/l with 17.0% wt, while Nannochloropsis oculata produced the greatest lipid content in [HCO3-] 25 ppm of 20.3% wt and the largest biomass on [HCO3-] 75 ppm of 1.7233 g/l.
Removal of calcium and magnesium ions from hard water using modified Amorphophallus campanulatus skin as a low cost adsorbent
Authors: Lestari Ajeng Yulianti Dwi , Malik Abdul , Sukirman  , Ilmi Muhammad Irfan , Sidiq Mahathir
Published: February 2018

Low cost adsorbent from Amorphophallus campanulatus skin has successfully synthesized to remove calcium and magnesium ions in the syntetic hard water. A. campanulatus skin were dried, crushed into powder form and modified by acid modification. A batch experiment with various parameters was used in this research. Various isotherm models were applied to fit the experimental data. Adsorption capacity of Ca and Mg on KB and KM adsorbents in 100 ppm solution respectively 10,85 mg/g, 27,64 mg/g, 1,79 mg/g and 20,1 mg/g. It was found out that the adsorption behavior of hard mineral ions by adsorbents match well with the Dubinin Radushkevich isotherm model. Based on the result, it can be concluded that a acid modified A. campanulatus skin is quite potential as a new low cost adsorbent which is expected to be applied to Indonesian groundwater which have high degree of hardness.
A kinetics study of acetic acid on cobalt leaching of spent LIBs: Shrinking Core Model
Authors: Setiawan Hendrik , Petrus Himawan T.B.M. , Perdana Indra
Published: February 2018

Lithium-ion batteries (LIBs) are secondary rechargeable power sources which increasing production also leads to large amount of waste. In order to environmentally friendly reduce the waste, this work aimed to use acetic acid as a substitute leaching agent to leach Co metals which constitutes about 72.39% wt of the battery cathode. The leaching process was done in a three-necked-flask where calcined LIB cathode powder was mixed with acetic acid solution. The variables of the leaching process under investigation were solution pH, concentration of H2O2 in the solution, S/L ratio, temperature and reaction time. Experimental results showed that only temperature significantly influenced the leaching rate of Co. Since the process was exothermic, the maximum recovery decreased as temperature increased. Conventional shrinking core model that considers diffusion and irreversible surface reaction resistances was found not sufficient to predict the kinetics of the Co leaching with acetic acid. A more representative kinetics model that considers a reversible reaction of Co complex formation needs to be further developed.
Pyrolysis of palm empty fruit bunch: Yields and analysis of bio-oil
Authors: Sutrisno Bachrun , Hidayat Arif
Published: February 2018

The palm oil industry is currently growing rapidly and generating large amounts of biomass waste that is not utilized properly. Palm empty fruit bunch (PEFB), by product of palm oil industry is considered as a promising alternative and renewable energy source that can be converted to a liquid product by pyrolysis process. In this work, pyrolysis of PEFB was studied to produce bio-oil. Pyrolysis experiments were carried out in a bench scale tubular furnace reactor. The effects of pyrolysis temperatures (400–600 °C) at heating rate of 10 °C/min to optimize the pyrolysis process for maximum liquid yield were investigated. The characteristics of bio-oil were analyzed using FTIR and GC–MS. The results showed that the maximum bio-oil yield was 44.5 wt. % of the product at 450 °C. The bio-oil products were mainly composed of acids, aldehydes, ketones, alcohols, phenols, and oligomers. The chemical characterization showed that the bio-oil obtained from PEFB may be potentially valuable as a fuel and chemical feedstock.
Modified coal fly ash as low cost adsorbent for removal reactive dyes from batik industry
Authors: Taufiq Agus , Hidayat Pratikno , Hidayat Arif
Published: February 2018

The removal of reactive dyes on modified coal fly ash has been investigated during a series of batch adsorption experiments. Physical characteristics of modified coal fly ash was characterized by Brunauer Emmett Teller (BET) surface area analysis, X-ray powder diffraction (XRD), Fourier transform infrared spectrophotometer (FT-IR), and scanning electron microscope (SEM). The effects of operational parameters such as initial dye concentration (50–200 mg/L), solution pH (4–10) and adsorbent dosage (50–200 mg/L) were studied. The adsorption experiments indicated that modified coal fly ash was effective in removing of Remazol Blue. The percentage removal of dyes increased while the modified fly ash dosage increased. The percentage removal of dyes increased with decreased initial concentration of the dye and also increased with amount of adsorbent used. The optimum of removal of dyes was found to be 94% at initial dye concentration 50 g/mL, modified fly ash dosage 250 g/mL, and pH of 2.0.
Studies of the absorbance peak on the N719 dye influence by combination between Cadmium Selenide (CdSe)QDs and Zinc Sulfide(ZnS)QDs
Authors: Saad Mohammad Azren , Samsi Noor Syafiqah , Hassan Oskar Hasdinor , Yahya Muhd Zu Azhan , Mohamad Taib Mohamad Fariz , Ali Ab Malik Marwan , Zakaria Rosnah
Published: February 2018

The absorption rate of the photoanode can be influenced by the combination between the difference semiconductor quantum dot sensitizer. Six samples were prepared with difference weight percent (wt%) of ZnS from 0% to 50% and constant wt% of CdSe which then will be called as semiconductor QDs were immersed in 0.5mM of N719 dye. The purity of ZnS powder and CdSe powder was determined using x-ray diffraction (XRD).The ultraviolet-visible spectrophotometry (Uv-Vis) use to investigate the absorption spectrum and absorbance peak of this sample. 50 wt% of ZnS is the best composition to increase the absorbance peak of the photoanode. The Cyclic voltammetry (CV) of varying wt% of ZnS, found that the 40 wt% of ZnS is suitable combination for a DSSC’s photoanode and produced the higher current.
Design of a new PID controller based on Arduino Uno R3 with application to household refrigerator
Authors: Erham Eddy , Markus  , Surjanto Ary , Rukmana Jaka
Published: February 2018

A refrigeration system to maintain a desired compartment temperature usually uses a thermostat as an on-off controller. In fact, the thermostat has some disadvantages. The main problem of system which is related to the thermostat is the biggest energy consumption in household appliances. In this paper, to solve the problem was designed a new PID controller based on an Arduino Uno R3 with application to a household refrigerator. In this case, the Arduino Uno was uploaded with PID controller algorithm. Then, in implementation to determine controller parameter values was defined new criteria. After that, to obtain the best refrigeration system performance was also proposed new performance criteria based on experimental data. The experimental results showed that the proposed control system was able to maintain the desired temperature with steady-state error of about 0.044°C. In addition, in steady state the control system for the refrigerator was able to the energy saving of about 30% and it almost did not depend on cooling load quantity.
Artifacts removal from breath sound recordings in pediatric population
Authors: Amrulloh Yusuf A , Haq Jawahir A K
Published: February 2018

Breath sound recordings from pediatric subjects pose more processing complications. Children, especially the younger ones, are not able to follow instructions to stay calm during recording. This makes their recordings not only contain stationary artifacts but also non-stationary artifacts such as movement of subjects and their heartbeats. Further, the breath sounds from pediatric subjects also have lower magnitude compared to adults. In this work, we proposed to address those problems by developing a method to remove the artifacts from breath sound recordings. We implemented a combination of a Butterworth band pass filter and a discrete wavelet filter. We tested three types of wavelets (Coiflet, Symlet and Daubechies). Ten level decompositions and a set of hard thresholds were implemented in our work. Our results show that our developed method was capable of removing the artifacts significantly while maintaining the signal of interest. The highest signal to noise ratio improvement (10.65dB) was achieved by 32 orders Symlet.
Sustainable-value stream mapping to evaluate sustainability performance: case study in an Indonesian furniture company
Authors: Hartini Sri , Ciptomulyono Udisubakti , Anityasari Maria , Sriyanto  , Pudjotomo Darminto
Published: February 2018

Lean manufacturing tools do not consider environmental and societal benefits. The conventional value stream mapping (VSM) methodology examines the economics of a manufacturing line, most of which are in regards to time (cycle time, lead time, change-out time, etc.). Incorporating the capability to capture environmental and societal performance visually through VSMs will increase its usefulness as a tool that can be used to assess manufacturing operations from a sustainability perspective. A number of studies have addressed the extension of VSM to incorporate additional criteria. A vast majority of these efforts have focused on adding energy-related metrics to VSMs, while several other studies refer to ‘sustainable’ VSM by including environmental performance in conventional VSMs. This research has developed a method for VSM integrated with environment metric and social metric for ensuring sustainable manufacture. The proposed technique is capable of visualizing and evaluating manufacturing process performance from sustainability view point. The capability of proposed technique has been tested by an application study on furniture company. The study provides insights to practitioners to visualize process performance in economic, environment and social metric.
The effect of Quran murottal’s audio on short term memory
Authors: Suteja Putra Perdana , Gumilar Retno , Rahma Kusuma Sasmita , Purnomo Hari , Basumerda Chancard
Published: February 2018

In all activities, people need memory as information storage. A good memory will make it easier for people to remember so they can do their job well. One of the things that affect memory is the sound of music. Music is commonly used as a stress treatment or as one of the stimuli of human brain memory. Not only classical music can be one of the stimuli of brain memory, but listening to the Quran can also be one of the brain memory stimulants. Several studies have proven that by listening to the Qur'an, the ability of the brain can be increased significantly. In this study used the variables pre and posted Qur'an listening to 50 respondents. Respondents consisted of 26 men and 24 women aged 19-22 years old. All respondents will get two treatments. The first treatment is without listening to murottal and the second treatment is done after listening to the Quran. All respondents will do memory test using the program running memory in software design tools. The results showed that the average ability of short-term memory without listening to murottal 11.8 and the average ability of short-term memory by listening to murottal is 12.62. Based on these results it is known that by listening to the Quran provides a significant increase in the ability of the brain.
Production waste analysis using value stream mapping and waste assessment model in a handwritten batik industry
Authors: Marifa Putri Citra , Andriani Feny Yuliana , Indrawati Sri , Parmasari Anggita Noviyanti , Budiman Hardiyanti , Kamilia Atika
Published: February 2018

Batik is one of Indonesian cultural heritage that confirmed by United Nations of Educational, Scientific, and Cultural Organization (UNESCO) on October 2009. This legal confirmation improves the number of batik industry from many regions based its local unique characteristic. The increasing number of batik SMEs in Indonesia requires a strategy that can create competitive advantage. This strategy can be done by reducing production waste. One of Indonesian batik SMEs is SME Batik CM located in Yogyakarta. There are several problems that occur in the industry, i.e. length of the production process, spots on Batik and excessive raw materials inventory. Based on that problems, this research is done by applying lean manufacturing concept using value stream mapping (VSM) method to evaluate production wastes. Based on the result of the research, there are seven types of production waste: overproduction (9,62%), inventory (17,3%), defect (23,08%), motion (9,62%), transportation (9,62%), Over processing (9,62%) and waiting (21,15%). Process improvement is done to reduce the highest waste, defect, using quality filter mapping (QFM).
System design of blood supply chain management based on Supplier Customer Relationship Management (SCRM) approach
Authors: Allamsyah Zuhdi , Mansur Agus
Published: February 2018

Blood supply chain management is very complex system. By considering blood’s demand that characterized as stochastic, therefore information and communication among stakeholders are considered as important cycle in supply chain. This research is objected to design interactive communication model based on information technology with android as platform to create effective customer-supplier relationship to support Customer Relationship Management or better known as CRM. The methods that suggested in designing its information system are Quality Function Deployment (QFD) approach, Kano Model and Morphological Chart. From mentioned methods, attributes of design and specification priorities of purposed android system technology design are established. Attributes of design will be adjusted with customers’ requirements derived from customer voice that will further be integrated with technical responds in QFD. Technical responds will provide priorities on each design’s attribute of android information system and will be forwarded to the specifications determination by using morphological chart. Later, work flow of design system will be generated by using Data Flow Diagram (DFD). The result of the research will demonstrate the design of information system technology based on android that already adjusted with the requirement of donors as means of communication between suppliers and customers in blood supply chain.
Quality improvements on creative industry by using Six Sigma: a study case
Authors: Purnama Dwi Adi , Shinta Riadho Clara , Helia Vembri Noor
Published: February 2018

Indonesia has several creative economy sectors that rapidly developed and potentially can be improved to 7% annually. One of them is textile industry specifically bag industry. This industry’s development could enhance the production of commodities and emerge other SMEs to initiate the similar field. Therefore, to raise its profit, customer’s satisfaction must be elevated by minimizing defected products. In order to support it, an improvement on production process is a must. This research employs Six Sigma methods integration with Fuzzy Analytical Hierarchy Process (Fuzzy AHP)-Failure Mode and Effect Anlysis (FMEA). Six Sigma is designated to analyze the level of products’ defect through Define, Measure, Analyze, Improve, and Control (DMAIC) stages and assess the factors that cause the defects by using Fuzzy AHP decision support system and FMEA in risk analysis on defect. The result of the research shows the shortage of defects that demonstrated by DPMO indicator and Sigma level. It is identified that the number of DPMO was being reduced from 20003.75 to 11185.73. While Six Sigma level demonstrated the enhancement from 3.61 to 3.86. Those suggest that the improvement solution provides has significant effect on the defects decreasing at the bag convection industry.
An application of data mining techniques in designing catalogue for a laundry service
Authors: Khasanah Annisa Uswatun , Erlangga Deliana Ardhitama , Jamil Ahmad Mustopa
Published: February 2018

Catalogues are the media that companies use to promote their products or services. Since catalogue is one of marketing media, the first essential step before designing product catalogue is determining the market target. Besides, it is also important to put some information that appeal to the target market, such as discount or promos by analysing customer pattern preferences in using services or buying product. This study conduct two data mining technique. The first is clustering analysis to segment customer and the second one is association rule mining to discover an interesting pattern about the services that commonly used by the customer at the same service time. Thus, the results will be used as a recommendation to make an attractive marketing strategy to be put in the service catalogue promo for a laundry in Sleman Yogyakarta. The clustering result showed that the biggest customer segment is university student who come 3 until 5 times in a month on weekends, while the association rule result showed that clothes, shoes, and bed sheet have strong relationship. The catalogue design is presented in the end of the paper.
Ergonomics smoke machine for indigenous people in Indonesia
Authors: Nurmianto Eko
Published: February 2018

A participatory process is used in the design of a user-centered smoke machine, resulting in lasting benefits to the community. This program of IbM (Science and Technology for Society) has designed fish fumes that are mobile, portable and environmentally ergonomic, applying appropriate technology about fumigation so as to increase knowledge to the community. This program improve people skills especially in smoked fish production, increase employment in the field of fishery products processing business. With this activity can grow the interest of the community to entrepreneurship for those who have not started a business and will increase its business for those who have started the processing business of fishery processing. Benefits derived from IbM (Science and Technology for Society) program are, among others, reduced air pollution caused by open fish curing system so that air quality environment, especially around fish processing SMEs to be better, can support and strengthen fish processing industry in the coastal area that began to grow and especially support local SMEs, increase the quantity and quality of patents that can be generated from community service activities funded by Directorate General of Higher Education, Ministry of Technology Research and Higher Education, Republic of Indonesia.
Comparison of Corner-Butt 45 (Cb-45) and Corner-Lap (Cl) joints in friction stir welding
Authors: Setiawan Widia , Darmadi Djarot B. , Suprapto Wahyono , Soenoko Rudy
Published: February 2018

The 10 mm thick Aluminum 6061 plates have been corner joined using varied design and those were 45° Corner Butt and Corner Lap Joints (CB-45 & CL). Friction tool was hardened EMS 45. True experimental method was used with independent parameters is feed rate which varied at 10 mm/min, 15 mm/min and 30 mm/min respectively. Other parameter such as rotating speed was kept constant. Experiment results show that, CB-45 yields better properties than CL. The tensile strength of CB-45 reaches 163.7 MPa for 10 mm/min feed rate. Whilst CL produces joint with tensile strength equal 120 MPa for equal parameters. Microstructure observation showed that CB-45 produces fine and homogenous appearance of MgO compared to CL. This phenomenon is caused by the pin of CB-45 joint which fully penetrates the nugget zone which is not found in CL design. This microstructure in turn promotes higher tensile strength of CB-45.
Drag reduction due to recirculating bubble control using plasma actuator on a squareback model
Authors: Budiarso  , Harinaldi  , Karim Riza Farrash , Julian James
Published: February 2018

Flow control on a squareback object which resembles many engineering related objects is believed to be highly beneficial. One of the flow characteristics behind the object, recirculating bubble, is known to play significant role in pressure distribution. Meanwhile, plasma actuator implementation on such object is still underdeveloped in application basis. This paper focuses on acquiring a deeper understanding of plasma actuator effect on flow phenomenon behind a squareback object, especially on its application to recirculating bubble control in order to reduce drag. The experiment was divided into drag measurement experiment and visualization experiment. The drag measurement result shows that plasma actuator succeeded on reducing drag up to 15.36% in the lowest Reynolds number. Meanwhile, the visualization experiment shows that plasma actuator has shifted the recirculating bubble position to be closer to the object’s wall.
The application of ceramic stove cover and loading distance to the performance of water boiling system
Authors: Widodo Agung Sugeng
Published: February 2018

Conventional gas stove (CGS) used in the water boiling system (WBS) is quite inefficient if the mechanism is not considered. In the present research, an assessment has been performed to a CGS by applying a ceramic stove cover (CSC) and also investigated the optimum distance between CSC and the loading to obtain very best efficiency of a CGS. Several parameters used to investigate the CGS’s performance such as water temperature, heating value of the fuel and temperature of CSC have been used in reference to the definition of efficiency. In this study the distance between CSC and the loading is varied by 1 mm to 7 mm by increment of 1 mm. The results show that at a distance of 4 mm, the performance of a CGS in a certain fuel rate of 12.5 cc/s increase significantly indicated by the best efficiency of 46.4 %. It is because of an optimum condition is accomplished simultaneously in heat transfer processes such convection and radiation in the WBS. Although the fuel rate itself have an influence to the flame structure heating the loading, however, the used of ceramic cover have an effect to the exchange between fresh air and flue gas to the combustion process.
Ring Irrigation System (RIS) design through customer preference representation
Authors: Ridwan Infandra I.Z. , Rianmora Suchada , Werawatganon Siwat
Published: February 2018

In agricultural field, irrigation is one of the most interesting considerations affecting the rate of plant growth and development. Micro-irrigation as the dripping or sprinkle method is one of the irrigation types that applies the small amount of water for fulfilling the humidity requirement. The most important factors affecting the demand of water for plants are soil conditions and effect of climatic factors. With less human labour required, to improve the irrigation method from the recent days, analyzing water used or water permeation automatically through the soil moisture has been raised as the interesting topic. Proposed in this research is the ring irrigation system (RIS) which is introduced as an alternative channel for emitters that drip water directly onto the soil at the plant’s root zone where the soil conditions before and after watering can be quickly detected by the sensors. This RIS can be used for the potted plant, green house, or other small farm fields. Product design and development (PDD) is applied in this research for assisting the designer to understand and create the RIS prototype properly according to the customer’s requirements where the suggested functions obtained will be added and tested.
Disturbance rejection using feed-forward control system on self balancing robot
Authors: Henryranu Prasetio Barlian , Kurniawan Wijaya
Published: February 2018

This research implements self-balancing robot using 3 algorithms. There are PID Controller, Ensemble Kalman Filter and Feed-Forward Control system. The PID controller function is as a robot equilibrium control system. The Kalman Ensemble algorithm is used to reduce noise measurement of accelerometer and gyroscope sensors. The PID controller and Ensemble Kalman filter were implemented on self-balancing robot in previous research. In this paper, we added the Feed-Forward controller that serves to detect disturbance derived from the unevenness of the ground. Disturbance is detected using 2 proximity sensors. Base on test results that the system can detect disturbance with an average delay of 2.15 seconds at Kff optimal value is 2.92. Feed-Forward effects result in self-balancing robots increasing power so that the pitch of the robot changes to anticipation of disturbance.
Interaction design of automatic faucet for standard hand-wash
Authors: Fitriyah Hurriyatul , Rosana Widasari Edita , Setiawan Eko , Angga Kusuma Brian
Published: February 2018

In hand-washing practice, people tend to forget to use soap and scrub for 20 seconds as stated in the standard. This paper attempts to develop an automatic faucet that is user-friendly and easy to plug in regular water pipe for standard hand-washing routine. An Interaction Design Process that aims to maximize product usability was applied during the development. The faucet utilized IR proximity sensor to detect presence of hands that would automatically commence the hand-washing process. First, it exited water and soap simultaneously to force users to use soap. The scrubbing duration was marked by buzzer’s sound and LED’s light. The validation test showed health practitioner agreed the faucet facilitates a standard hand-washing. The user test in 30 participants showed users used soap and scrubbed in the exact duration. The usability questionnaire filled by participants showed they were strongly agreed for its usefulness and agreed for its satisfaction and easiness.
Enterprise firewall virtualization design
Authors: Sujarwo Ari , Tan Jefferson
Published: February 2018

Grid computing could consists of thousand of computers across the world with the role as the resource provider or Grid users. This conditions make a challenge for engineer to keep the Grid secure but at the same the Grid must be easily joined by clients and providers. This paper aims to propose a method to control enterprise firewall which is basically a static engine to be a dynamic engine to cope with the Grid needs. At the end of the paper, the results shows that this method is works and was tested using a real enterprise firewall.
Integration of EA and IT service to improve performance at higher education organizations
Authors: Hermanto Agus , Supangat
Published: February 2018

One of the perceived benefits of the use of information technology is the increased accuracy and speed of information that greatly helped the operations of an institution or organization. Politeknik XYZ as one of the organizations / institutions in the field of education, now need to consider the strategic role of information technology in supporting academic activities and develop a wide range of academic services, especially for students. Accordingly, in this study has been carried out the planning and improvement of information technology services in accordance with EA and IT Service standards, based on analysis using ACMM maturity level. The end result of architectural planning and service enhancement developed with TOGAF and ITIL is to be used as a reference in the improvement the role of information systems and technology in supporting business process organizations at Polytechnic XYZ. This study demonstrates the importance of raising awareness of the interdependent relationship between architecture and quality of service management in the organization of information technology.
Syllables sound signal classification using multi-layer perceptron in varying number of hidden-layer and hidden-neuron
Authors: Kristomo Domy , Hidayat Risanuri , Soesanti Indah
Published: February 2018

The research on signal processing of syllables sound signal is still the challenging tasks, due to non-stationary, speaker-dependent, variable context, and dynamic nature factor of the signal. In the process of classification using multi-layer perceptron (MLP), the process of selecting a suitable parameter of hidden neuron and hidden layer is crucial for the optimal result of classification. This paper presents a speech signal classification method by using MLP with various numbers of hidden-layer and hidden-neuron for classifying the Indonesian Consonant-Vowel (CV) syllables signal. Five feature sets were generated by using Discrete Wavelet Transform (DWT), Renyi Entropy, Autoregressive Power Spectral Density (AR-PSD) and Statistical methods. Each syllable was segmented at a certain length to form a CV unit. The results show that the average recognition of WRPSDS with 1, 2, and 3 hidden layers were 74.17%, 69.17%, and 63.03%, respectively.
Potential medicinal plants for improve the immune system from Borneo Island and the prospect to be developed as nanomedicine
Authors: Chabib Lutfi , Muhtadi Wildan Khairi , Rizki Muhammad Ikhwan , Rahman Rifazul Aulia , Suhendri Mohamad Rahman , Hidayat Arif
Published: February 2018

The immune system is a combination of cells, molecules, and tissues that play a role in preventing, detecting and eliminating a pathogen that enters the body. Indonesian society, hereditary and traditionally used medicinal plants (herbs) to increase immunity or immune system that fight the bacterias and pathogens. This paper aims to review the potential plants for immunomodulator from Borneo Island and the prospect to be developed as nanomedicines. The review is made using online and offline literature. Based on the literature, the immune system can be improved by various compounds from plants such as bawang dayak (Eleutherine palmifolia(L) Merr), kelakai (Stenochlaena palustris(Burm.f) Bedd), pasak bumi (Eurycoma longifoliaJack), kasturi (Mangifera casturiKosterm.), binjai (Mangifera caesia), ramania (Bouea macrophyllaGriff), gerunggang (Cratoxylum arborescens(Vahl) Bl) and akar kuning (Fibraurea chloroleucaMiers). In general, the mechanism of the plants to improve the immune system is by facing the cause of the disease directly as an effector and also work by regulating immunity. The medicinal plants also have prospects to be developed as nanomedicines.
Recognition and Identification by Timbre of a Living Creature's Voice Based on Trainable Neural Networks in Real-Time Mode and Their Implementation in the Intelligent System «Neurocyber»
Authors: Gafurov Anton , Gafurov Oleg
Published: February 2018

The article considers physical basis for formation and propagation of sound and its psychophysical perception by living creatures. The authors suggest an algorithm of living creatures’ identification by the voice timbre and the algorithm’s practical realization by artificial neural networks, by initialization of a conversation by the robot in order to reduce ambiguity of responses and to improve the quality of recognition in real-time mode.
Evolution of the Brain Computing Interface (BCI) and Proposed Electroencephalography (EEG) Signals Based Authentication Model
Authors: Ramzan Qaseem , Shidlovskiy Stanislav
Published: February 2018

With current advancements in the field of Brain Computer interface it is required to study how it will affect the other technologies currently in use. In this paper, the authors motivate the need of Brain Computing Interface in the era of IoT (Internet of Things), and analyze how BCI in the presence of IoT could have serious privacy breach if not protected by new kind of more secure protocols. Security breach and hacking has been around for a long time but now we are sensitive towards data as our lives depend on it. When everything is interconnected through IoT and considering that we control all interconnected things by means of our brain using BCI (Brain Computer Interface), the meaning of security breach becomes much more sensitive than in the past. This paper describes the old security methods being used for authentication and how they can be compromised. Considering the sensitivity of data in the era of IoT, a new form of authentication is required, which should incorporate BCI rather than usual authentication techniques.
Method of Restoring Mine Hoisting Machine Brake Unit Lever Transmission Bushing
Authors: Ibatov Marat , Mekhtiyev Ali , Bulatbayev Felix , Yakupova Oxana
Published: February 2018

In the article results of researches of brake devices of lifting machines UD of joint-stock company "ArcelorMittal Temirtau" are resulted. Defects were revealed as a result of the examination. A method and device for the unconditional control of defects and technical condition of the hinged joints of brake devices is developed in terms of the gap size and the angle of rotation between the links of the kinematic pairs "Widget-finger". For the monitoring of gaps, capacitive sensors are installed, mounted on hinged joints. It is substantiated that with the use of capacitive sensors it is possible to control the gaps in the hinged joints in real time. A device has been developed that makes it possible to estimate the magnitude of the gap at several points of the kinematic chain of the mechanism simultaneously.
Plane Source of Concentrated Magnetic Field Based on Square Coils
Authors: Roslyakov Sergey , Yakubov Vladimir , Zavyalova Ksenia
Published: February 2018

You can see the method of the synthesis of planar sources of concentrated magnetic field. Method defines the current distribution in the plane, which is required to produce a concentrated magnetic field at a distance from the source. Carried out a numerical calculation of the current distribution to create a point field localization. It is shown that the field concentration is achieved by minimizing the level of low spatial frequencies due to antiphase currents in concentric circular coils. The resulting field distribution is extremely sensitive to the slightest changes in the current distribution, which creates difficulties for the practical implementation of the system.
Radio-Wave Tomography of Inhomogeneities in Biological Media with Multi-Frequency Sounding in the Range 2-8 GHZ
Authors: Shipilov Sergey , Eremeev Aleksandr , Balzovsky Evgeny , Yurchenko Elena
Published: February 2018

In this paper, a method for detecting and mapping inhomogeneities in biological tissues using the radio-wave tomosynthesis method is presented. The proposed method of radio-wave tomosynthesis allows us to calculate the three-dimensional distribution of the permittivity of the space under study and, thereby, to detect tissue inhomogeneities and to determine their location and size. Due to their harmlessness for humans, these methods are suitable for dynamic observation of changes in the size of formation, in contrast to x-ray methods, for which regular doses of ionizing radiation are contraindicated. Therefore, the development of non-invasive methods for the search for inhomogeneities in biological media based on radio-wave sounding, which makes it possible to identify pathological formations, is now very relevant.
Comparative Analysis of Methods for Assessing the Effectiveness of Geological and Engineering Operations
Authors: Ivanenko Boris , Petelin Alexander
Published: February 2018

The paper presents a comparison of the methods for assessing the baseline oil production level based on the use of nonparametric statistics, integral and differential models, and neural network algorithms.
Mesoscale Acoustical Cylindrical Superlens
Authors: Minin Igor , Minin Oleg
Published: February 2018

We demonstrate experimentally for the first time the acoustojet (acoustic jets) formed from acoustic plane wave scattering by a penetrable cylindrical particle with dimensions of several wavelengths. It acts as a superlens with subwavelength localization of acoustical wave. During the scattering by elastic solid particles, additional internal shear waves are excited due to modes conversion. This mechanism allows achieving sharp focusing in the near-field zone. Such mesoscale single particle cylindrical lens may be considered as acoustic metamaterials free superlenses with resolution beyond the diffraction limit.
The Efficiency of the Pumping of the Lasers Based on Self-Terminating Atomic Transitions Operating in the Energy Input Cut-Off Mode
Authors: Burdin Alexey , Polunin Yury , Razmahnin Ivan , Soldatov Anatoly , Yudin Nikolay , Yudin Nikolay
Published: February 2018

The analysis of the electro-physical processes in the discharge circuit of the lasers based on the self-terminating transitions of metal atoms (LSTM) and the electrodes placed in the cold buffer zones of the gas discharge tube (GDT) is occurred. That design of the GDT can provide the efficient lasing at the reduction of the current flowing through the switch to zero after the charging of the capacitive components of the circuit from the storage capacitor. Under the circumstances the pumping of the active medium is determined by the energy input from the peaking capacitor and, consequently, the efficiency of the pumping can be increased by an order of magnitude, if (using a managed switch) the energy input into the active medium from the storage capacitor is “cut-off” after charging the capacitive components of the circuit. It was shown that the efficiency values of ∼ 9-11 % and of ∼ 5-6 % for the copper and gold vapor, lasers could be achieved.
Development of Social Systems in the Context of Prognosis
Authors: Kvesko Svetlana , Kornienko Mikhail , Petrunina Nadezhda , Kabanova Nataliya
Published: February 2018

The paper dwells on the prognosis of the social systems development. The prognostic analysis is based on the systemic approach to the issue; it shows that the conditions of the transference to the knowledge society determine the formation of the brand new features in social prognoses. The paper states the specific features and conditions of social prognosis, which ensure the validity of control actions. Besides, the current analysis provides recommendations on how to devise social prognostic strategies (within the frame of a) transference to the knowledge society and b) environmental instability). Finally, the functional load of social prognosis in the contemporary conditions is outlined.
Development of a Hardware and Software System for Meteorological Observations
Authors: Shcherbakov Mikhail , Borisov Alexey
Published: February 2018

Article is devoted to development of a hardware and software system for monitoring of weather conditions. The hardware of this complex is the Arduino platform, which are connected sensors of temperature, humidity, atmospheric pressure, speed and direction of wind, level of ultra-violet radiation, which allow to watch environment parameters. Data are transferred to the remote server which is constructed on the basis of the single board computer Raspberry Pi, by means of a radio channel. For ensuring functioning of a complex, the software was written and it consisting of three programs. The first program was written to on Si similar language for operation of the Arduino controller. The second from programs was written for functioning of the server, it consists of MySQL DBMS, a script for data record in a basis and the PhpMyAdmin servers for administration of a DB. The third was written in the C# programming language and represents the application Windows forms. The made experiment showed that the complex allows to carry continuously meteorological observations, at the same time data remain in the database and the consumer software allows to carry their processing.
Decrease Radar Cross-Section Objectives Using the Metamerial
Authors: Mironchev Aleksandr , Yakubov Vladimir
Published: February 2018

In this work influence of an electromagnetic field on lattices from close located ring conductors is shown. RCS is also calculated and shown that at 0 ≤ n2 < 1 there is the considerable decrease of an object.
Local Quasioptical Resonator Diagnostics of Semiconductor Wafers
Authors: Dorofeev Igor , Dunaevskii Grigorii , Badin Alexander , Dorozhkin Kirill , Bessonov Vitaly , Khodovitskiy Sergey
Published: February 2018

The method of measurement of reflection coefficient behind an orifice in one of reflectors of the quasioptical open resonator is considered. According to the applied mathematical model, the method has the restriction which is consist in use of a short-wave approximation for the orifice size (it dimension is much more than a wavelength). For evaluation of limits of applicability of this method the experimental setup in the threecentimetric range of wavelengths consist of the quasioptical open resonator and the system of positioning of the measuring probe is created. By the experimental study of distribution of fields behind an orifice in the reflector of the open resonator it is found that the method, except restriction of mathematical model, has also restrictions, due to the wave’s interference, reflected from edges of this orifice. It causes a deviation from the uniform amplitude distribution of the field in an opening that can lead to increase in an error of a reflection coefficient measuring. It is also shown that by decrease of the sizes of an orifice formation of a bunch with small divergence, but with significantly more expressed distribution of the field localized about a bunch axis in an aperture is possible. It can be used for diagnostics of inhomogeneity of samples with higher locality.
Model of Broadband Metamaterial for Microwaves
Authors: Gorst Aleksandr , Klokov Andrei , Zapasnoy Andrei
Published: February 2018

In this work are presented, results of computer model operation of the structure executed from triangular elements with openings in the center. Results of mathematical calculation of amplitude and phase distribution of an electric field with use of CST Microwave studio are given. Also, calculation of the equivalent index of refraction when passing a plane wave through this structure is given.
Le TERS, ou comment obtenir une signature chimique à l’échelle nanométrique
Authors: Hsia Patrick , Chaigneau Marc
Published: February 2018

Le TERS pour tip enhanced raman scattering, est une technique de pointe (dans tous les sens du terme) basée sur l’amplification du signal Raman relative à la résonance de plasmons de surface. Cette technique non-destructive, qui ne nécessite pas de marquage particulier, permet de caractériser un échantillon à l’échelle nanométrique. Le TERS s’impose aujourd’hui pour sonder les propriétés physico-chimiques des nanomatériaux et participer ainsi au développement de nouvelles applications dans le domaine des nanotechnologies.
Les nanostructures pour créer de la couleur, un art inspiré par la nature
Authors: Ball Philip
Published: February 2018

Les reflets changeants des plumes de la queue du paon ont captivé plus d’un esprit curieux. Le scientifique anglais Robert Hooke les qualifiait en 1665 de « surnaturelles » en constatant que, mouillées, elles perdaient leurs couleurs. À l’aide du microscope inventé depuis peu, il observa ces plumes, et découvrit qu’elles étaient couvertes de stries – qu’il suspecta d’être à l’origine des couleurs. Aujourd’hui, la recherche tente de s’inspirer de ces phénomènes : des applications « bio-inspirées » sont en voie de concrétisation.