bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Grammaticalization of 1st and 2nd Person Pronominal Affixes in North American Indian Languages
Authors: Helmbrecht Johannes
Published: July 2015

Proceedings of the Twenty-Second Annual Meeting of the Berkeley Linguistics Society: Special Session on Historical Issues in Native American Languages (1996)
Reconstructing Person and Voice in Kiowa-Tanoan: Pitfalls and Progress
Authors: Watkins Laurel J.
Published: July 2015

Proceedings of the Twenty-Second Annual Meeting of the Berkeley Linguistics Society: Special Session on Historical Issues in Native American Languages (1996)
Motivating Morpho-Syntactic Changes in Turkic Subordinations
Authors: Kornfilt Jaklin
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
On Mohawk Ghost Vowels: Audibility vs. Visibility
Authors: Rowicka Gra!yna
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
Perceptual Confusions and Phonological Change: How Confused is the Listener?
Authors: Beddor Patrice Speeter , Krakow Rena Arens
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
Person Reference and References to People in Brazilian Sign Language
Authors: Berenz Norine
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
Phonetic Assessment of Tone Spreading
Authors: Kim Sung-A
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
Phonological Universals: Trilling, Voicing, and Frication
Authors: Solé Maria-Josep
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
The Convergence of ‘Similarities’ and Making the Best of Probabilistic Evidence
Authors: Goh Gwang-Yoon
Published: July 2015

Proceedings of the Twenty-Fourth Annual Meeting of the Berkeley Linguistics Society: General Session and Parasession on Phonetics and Phonological Universals (1998)
Loanwords and Contact-Induced Phonological Change in Lachixío Zapotec
Authors: Sicoli Mark
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society (2000)
Problems in Studying Loans
Authors: Cannon Garland
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society (2000)
Tmesis and Verb Second in Early Irish Syntax
Authors: Doherty Cathal
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society (2000)
What is the Information Structure-Syntax Interface in Basque?
Authors: Bellver Phyllis , Michaelis Laura A.
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society (2000)
Attractiveness and Relatedness: Notes on Turkic Language Contacts
Authors: Johanson Lars
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society: Special Session on Caucasian, Dravidian, and Turkic Linguistics (2000)
Epenthesis-Driven Harmony in Turkish
Authors: Kaun Abigail R.
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society: Special Session on Caucasian, Dravidian, and Turkic Linguistics (2000)
Kannada Gerund in Adnominal Positions: A Functional Perspective
Authors: Fried Mirjam
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society: Special Session on Caucasian, Dravidian, and Turkic Linguistics (2000)
Tuvan Reduplication and Harmony
Authors: Harrison K. David
Published: July 2015

Proceedings of the 25th Annual Meeting of the Berkeley Linguistics Society: Special Session on Caucasian, Dravidian, and Turkic Linguistics (2000)
Demonstrative adjectives in spoken Finnish: Informational sufficiency and the speaker-addressee dynamic
Authors: Kaiser Elsi
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society (2013), pp. 124-139
Grammaticized discourse connectivity
Authors: Port Martin
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society (2013), pp. 315-329
Linguistic relativity and numeric cognition: New light on a prominent test case
Authors: Everett Caleb
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society (2013), pp. 91-103
The purview effect: Feminine gender on inanimates in Halkomelem Salish
Authors: Gerdts Donna B.
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society (2013), pp. 417-426
Vowel harmony and vowel reduction: The case of Swiss Italian dialects
Authors: Delucchi Rachele
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society (2013), pp. 61-75
Causativization and contact in Nakh-Daghestanian
Authors: Nichols Johanna
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society: Special Session on Languages of the Caucasus (2013), pp. 68-80
The unique challenge of the Archi paradigm
Authors: Gorbett Greville G.
Published: July 2015

Proceedings of the 37th Annual Meeting of the Berkeley Linguistics Society: Special Session on Languages of the Caucasus (2013), pp. 52-67
Treatment of Resistant Influenza Virus Infection in a Hospitalized Patient with Cystic Fibrosis with DAS181, a Host-Directed Antiviral
Authors: Silveira Fernanda P , Abdel-Massih Rima , Bogdanovich Tatiana , Pakstis Diana L , Routh Rebecca L , Moss Ronald B
Published: July 2015

We report a cystic fibrosis patient infected with influenza 2009H1N1 who had persistent viral shedding and clinical deterioration despite prolonged treatment with oseltamivir and zanamivir. The patient was diagnosed with H275Y neuraminidase inhibitor resistant influenza during treatment, thus was treated for 10 days with DAS181, an investigational host-directed inhaled sialidase fusion protein. Viral clearance occurred after 5 days of therapy and the patient became eligible for lung transplantation. Although the patient succumbed prior to receiving a transplant, this case exemplifies the potential utility of a host-directed approach against influenza which has potential to become resistant to neuraminidase inhibitors.
Report from the OMERACT Hand Osteoarthritis Working Group: Set of Core Domains and Preliminary Set of Instruments for Use in Clinical Trials and Observational Studies
Authors: Kloppenburg Margreet , Bøyesen Pernille , Visser A. Willemien , Haugen Ida K. , Boers Maarten , Boonen Annelies , Conaghan Philip G. , Hawker Gillian A. , Kvien Tore K. , Landewé Robert , Uhlig Till , Smeets Wilma , Greibrokk Elsie , van der Heijde Désirée M.
Published: July 2015

Objective.

During OMERACT 12, a workshop was held with the aim to endorse a core set of domains for 3 settings: clinical trials of symptom and structure modification and observational studies. Additional goals were to endorse a core set of contextual factors for these settings, and to define preliminary instruments for each core domain. Finally, an agenda for future research in hand osteoarthritis (OA) was to be proposed.

Methods.

Literature reviews of preliminary instruments for each core domain of the proposed core set for hand OA in the settings described above. Literature review of radiographic scoring methods and modern imaging in hand OA were also performed. Proposed contextual factors for a core set were identified through 2 Delphi exercises with participation of hand OA experts, patient partners, and OMERACT participants.

Results.

Results from Delphi exercises and systematic literature reviews were presented and discussed. It was agreed that a preliminary core domain set for the setting clinical trials of symptom modification should contain at least “pain, physical function, patient global assessment, joint activity and hand strength.” The settings clinical trial of structure modification and observational studies would in addition include structural damage. Preliminary instruments for the proposed domains were agreed on. A list of prioritized contextual factors was defined and endorsed for further research. A research agenda was proposed for domain instrument validation according to the OMERACT Filter 2.0.

Conclusion.

Preliminary core sets for clinical trials of symptom and structure modification and observational studies in hand osteoarthritis, including preliminary instruments and contextual factors, were agreed upon during OMERACT 12.
Is Chronic Pain a Disease in Its Own Right? Discussions from a Pre-OMERACT 2014 Workshop on Chronic Pain
Authors: Taylor Ann M. , Phillips Kristine , Taylor Justin O. , Singh Jasvinder A. , Conaghan Philip G. , Choy Ernest H. , Tugwell Peter S. , Kaiser Ulrike , Strand Vibeke , Simon Lee S. , Mease Philip J.
Published: July 2015

At the pain workshop held prior to the Outcome Measures in Rheumatology (OMERACT) 12 conference, chronic nonmalignant pain (CP) as a “disease” was discussed, in response to growing interest in this concept and in terms of the effect on the OMERACT Filter 2.0 framework. CP is often assessed as a unidimensional outcome measure; however, if CP is a disease, then outcome measures need to define the disease state and identify all its manifestations as well as its effects, as specified by Filter 2.0. The aim was to write a discussion piece, reflecting the workshop contributions and debate, as an important step in opening a dialogue around future OMERACT Filter 2.0 Framework developments.
The State of the Art Forensic Techniques in Mobile Cloud Environment
Authors: Faheem Muhammad , Kechadi Tahar , Le-Khac Nhien An
Published: July 2015

Smartphones have become popular in recent days due to the accessibility of a wide range of applications. These sophisticated applications demand more computing resources in a resource constraint smartphone. Cloud computing is the motivating factor for the progress of these applications. The emerging mobile cloud computing introduces a new architecture to offload smartphone and utilize cloud computing technology to solve resource requirements. The popularity of mobile cloud computing is an opportunity for misuse and unlawful activities. Therefore, it is a challenging platform for digital forensic investigations due to the non-availability of methodologies, tools and techniques. The aim of this work is to analyze the forensic tools and methodologies for crime investigation in a mobile cloud platform as it poses challenges in proving the evidence.
Visual Secret Sharing Without Pixel Expansion
Authors: Sagheer Ali Makki , Abed Laith Hamid
Published: July 2015

Visual Secret Sharing (VSS) is a powerful approach for protecting image sharing through unsecured computer network such as the Internet. Pixel expansion and bad image quality are the most common problems of this approach. Visual secret sharing technique is proposed for grayscale images to eliminate pixel expansion problem using image compression. The experimental results and security analysis illustrate that the proposed visual secret sharing technique leads to better results in terms of image security and quality together with pixel expansion's elimination. The obtained results showed that the accomplished image security is stronger than the security of the traditional secret sharing technique as the secret key encryption is associated with VSS approach.
MapExif
Authors: Prat Lionel , Baker Cheryl , Le-Khac Nhien An
Published: July 2015

Recently, the integration of geographical coordinates into a picture has become more and more popular. Indeed almost all smartphones and many cameras today have a built-in GPS receiver that stores the location information in the Exif header when a picture is taken. Although the automatic embedding of geotags in pictures is often ignored by smart phone users as it can lead to endless discussions about privacy implications, these geotags could be really useful for investigators in analysing criminal activity. Currently, there are many free tools as well as commercial tools available in the market that can help computer forensics investigators to cover a wide range of geographic information related to criminal scenes or activities. However, there are not specific forensic tools available to deal with the geolocation of pictures taken by smart phones or cameras. In this paper, an image scanning and mapping tool for investigators is proposed and developed. This tool scans all the files in a given directory and then displays particular photos based on optional filters (date/time/device/localisation…) on Google Map. The file scanning process is not based on the file extension but its header. This tool can also show efficiently to users if there is more than one image on the map with the same GPS coordinates, or even if there are images with no GPS coordinates taken by the same device in the same timeline. Moreover, this new tool is portable; investigators can run it on any operating system without any installation. Another useful feature is to be able to work in a read-only environment, so that forensic results will not be modified. This tool's real-world application is also presented and evaluated in this paper.
Influence of SMS Advertising on Consumer Behavioral Intention
Authors: Lin Hongyan , Chen Zhankui
Published: July 2015

Mobile marketing has become an effective medium for advertisers. Effective mobile advertising could greatly improve customers purchase intention in this context. This study focuses on the prevailing form of mobile advertising, i.e., SMS advertising. Based on the theory of planned behavior, the authors explore the influence of SMS advertising on the consumer behavior in China. Participants are Chinese students and office workers. The results indicate that (a) the perceived infotainment and credibility have a positive significant effect on consumer attitudes, whereas irritation has a negative significant effect on consumer attitudes; (b) attitudes, subjective norms, and perceived behavior control have significant effects on the intention to use; (c) attitudes also mediate the relationship between subjective norms and intention to use; and (d) men and women pursue different paths to influence the intention to use. Based on the above results, theoretical and practical implications are also discussed in this study.
Information Systems Project Management Risk
Authors: Tams Stefan , Hill Kevin
Published: July 2015

Over the last three decades, much IS research has focused on information systems development (ISD) risk and its impacts on ISD success. While these studies have greatly advanced the understanding of the nomological network of ISD risk and success, the literature is still not sufficiently clear on the firm performance impacts of these concepts. Linking ISD risk and success to firm performance is important so as to better understand whether ISD projects can have broader firm-level implications, for example, in terms of providing firms with a competitive advantage. To address this research need, the present research note advances propositions regarding the linkage between ISD risk, success, and firm-level performance (conceptualized as competitive advantage). This linkage sheds light on the broader effects of ISD risk, and it helps ISD research overcome the isolation in which it is often conducted. Using the concept of residual risk (i.e., the risk present in the later stages of a project that remains after appropriate actions have been taken to mitigate initial risks in the early stages of a project), the authors propose that ISD risk impacts firm performance by reducing ISD success and that the value arising from ISD projects is higher when IT and business plans are synchronized (i.e., when they are in alignment).
A Simple Unconsolidated Undrained Triaxial Compression Test Emulator
Authors: Ekawita Riska , Nawir Hasbullah , Suprijadi  , Khairurrijal
Published: July 2015

An unconsolidated undrained (UU) test is one type of triaxial compression tests based on the nature of loading and drainage conditions. In order to imitate the UU triaxial compression tests, a UU triaxial emulator with a graphical user interface (GUI) was developed. It has 5 deformation sensors (4 radial deformations and one vertical deformation) and one axial pressure sensor. In addition, other inputs of the emulator are the cell pressure, the height of sample, and the diameter of sample, which are provided by the user. The emulator also facilitates the analysis and storage of measurement data. Deformation data fed to the emulator were obtained from real measurements [H. Nawir, Viscous effects on yielding characteristics of sand in triaxial compression, Dissertation, Civil Eng. Dept., The University of Tokyo, 2002]. Using the measurement data, the stress vs radial strain, stress vs vertical strain, and Mohr-Coulomb circle curves were obtained and displayed by the emulator.
A Portable and USB-Powered Device for Heart Rate Extraction of Optical Plethysmography Signal
Authors: Sasono Margi , Rusdiarna Ip Apik
Published: July 2015

Optical plethysmography technology has been used to design and develop a portable device for heart rate sensor. These device, consisting of near-infrared light-emitting diodes (LEDs) and photodetectors, offer a simple means of extraction the heart rate noninvasively on fingertip’s healthy volunteers. The acquisition signal is carried out based on the detection of the absorbance of near-infrared light in blood vessels due to heart’s pump activity. The microcontroller is used as the main component of electronics module. The communication to personal computer (PC) and power supply of device are provided by USB system. The algorithm of Fast Fourier Transform (FFT) in the software was used to generate the spectra of the signal and determine the HR of the obtained signal. The performance of developed device is tested on 10 fingertips of healthy volunteers, aged 19 to 57 years. A Pulse Oximeter commercial was used as gold standard instrument for comparison of results obtained by the designed device. In this paper the correlation analysis was applied to validate the results of both devices. The analysis show that the HR measured is positively correlated. These results show that the correlation between the HR measured by both the designed PPG device and Pulse Oximeter commercial are almost perfectly linear. Thus, the pulse signals gathered by the designed device are accurately believed to be representative of the heart activity of healthy volunteers. The validation method supports that designed device can potentially be developed as a simple, low power, and portable device for the importance of biomedical research (mainly for processing biomedical signal) and clinical practices.
Sub ppb CO Gas Measurement Using a Non Invasive QCL Laser Absorption Spectrometer Technique
Authors: Widiatmono Restu , Mandon Julien , Harren Frans J.M. , Kusminarto  , Wasono M. Ali Joko , Mitrayana
Published: July 2015

A sensitive gas detection system using a distributed feedback CW Quantum Cascade Laser (QCL) centered at 4610 nm as a radiation source has been developed. QCL was used in combination with an off-axis integrated cavity output spectroscopy (ICOS) for Carbon Monoxide (CO) gas detection in a low gas pressure. a 15 cm long high-finesse cavity with an effective optical path length of 400 m has been used as a sample gas cell. We demonstrated detection limit of 1 ppbv with less than 2 second averaging time. The best detection limit is obtained at 0.4 ppbv for a 128 s acquisition time. All measurement results has shown that the QCL based ICOS detector system proved to be suitable for monitoring CO gas in a low gas pressure condition with sub-ppb sensitivity.
A Computer-Based Air Flow Control System for Aerosol and Filtration Research
Authors: Munir Muhammad Miftahul , Abidin Muhammad Sainal , Rajak Abdul , Khairurrijal
Published: July 2015

An airflow control system is one of important parts in the scanning mobility particle sizers system (SMPS) used in the field of aerosol and air filtration. In this paper, the air flow control system that consists of an air filter, a blower, an air flow sensor, a controller, and a computer are reported. A flow rate adjustment was performed by varying the rotation speed of the blower using a pulse width modulation (PWM) technique. The air flow sensor capable of measuring flow rate up to 20 liters / min was used to measure the air flow rate. In order to keep at a certain value of the flow rate, a proportional-integral-derivative (PID) control action was employed in which PID controller were manually tune. The results showed that the desired value of flow rate was quickly achieved with little overshoot was observed in the system output.
Strain Gauge Sensors Implemented in a New Female Torso Model Have Increased Student's Motivation and Confidence in Gynecologic Bimanual Examination on Clinical Skill Training
Authors: Budiharjo Santosa , Arfian Nur , Wijaya Rony , Ratna Sari Dwi Cahyani , Prakosa Djoko , Romi Muhammad Mansyur
Published: July 2015

A good mannequin is needed to improve the quality of clinical skill learning. A strain sensors gauge can be applied into gynecologic bimanual examination mannequin. This study compared a new strain gauge sensors mannequin and non-sensor mannequin for gynecologic bimanual examination training in undergraduate medical student. We made a new female torso model implemented with strain gauge sensors in the definitive landmark, then used this new mannequin for gynecologic bimanual examination training in undergraduate medical student, and evaluated using questioner. We observed 4 parameters: mannequin appearance, student’s self confidence to palpate uterus and ovary, and student’s learning motivation. The new model improved student’s confident to palpate ovary (p<0.05) and student’s motivation (p<0.001) compared to non-sensor mannequin. In contrast, the gross appearance of the new mannequin was inferior (p<0.05). However, there was no difference in defining the uterus position during examination (p>0.05) in both mannequins. A new female torso model with strain gauge sensors can be applied for gynecologic examination training.
Application of Multivariate EMD to Improve Quality VLF-EM Data: Synthetic and Fields Data
Authors: Sungkono  , Bahri Ayi S. , Santosa Bagus J.
Published: July 2015

A method for enhancing VLF˗EM data based on Multivariate Empirical Mode Decomposition (EMD) was presented. The noise assisted multivariate empirical mode decomposition (NA-MEMD) approach to simultaneously decompose bivariate data.The NA-MEMD is applied to enhance bivariate VLF˗EM data. The method was also tested on a synthetic and two fields VLF-EM data sets. The results indicate that the filtered VLF˗EM data based on the NA-MEMD results better data and easier to interpret or further analyzed. In addition, the 2D resistivity profile result estimated from the inversion of filtered VLF˗EM data is appropriate to geological condition.
Fundamental Metrology: Its Significance for Scientific Awareness in Higher Education
Authors: Rusli Aloysius
Published: July 2015

Advances in science and technology have encompassed ever larger and ever smaller scales of time, distance, mass, electrical and electronic devices, temperature, pressure. However, scientific and science awareness have not developed in step in the general population. Many people still regard science and technology as wizardy and magic, incomprehensible and unattainable for the common person. This could be called a cultural time bomb, as the widening divide between scientist’s and technologist’s views with the common lay person’s views will cause a divide between their culture as well. And when the people's legal representatives become differently cultured compared with scientists and technologists, this will cause legal decisions getting disconnected with the common good, due to the incomprehension about science and the scientific way in the representative's way of thinking. This increasing disconnect will not help improving the common good: the nuclear power plant issue is a clear example. A not-so-recent issue of 'shall we signal our presence to extraterrestrial intelligence, or would that attract evil beings towards us?' is also a timely example. Fundamental metrology, with its concern and endeavour to improve and develop appropriate definitions of units and its standards, can decrease uncertainties and increase precision and levels of confidence in its measurements. This can and should play a significant role to improve critical thinking and reflection through improving scientific and science awareness of the general public, to be more able to comprehend some basics in science and technology, and so to recognize relevant ethical issues, realize the sometimes difficult choices between competing technologies, which need critical reflection to be able to discern proper and just choices. This report describes initiation and development of a classroom effort in this direction during these past 15 years, usually receiving appreciation from students, both at the undergraduate and postgraduate level, with an oft-expressed comment, "This should be introduced at secondary level, to become earlier aware of the role and importance of units and standards, and the human aspects of its origins and history". It is proposed that leaders in fundamental metrology of the various units, standards, processes, and history, should enhance efforts and publications to improve scientific and science awareness of the general public, by introducing metrological issues in a popular and interesting way to secondary and university level students.
Microscopic Surface Measurement Using Phase Shifting Method
Authors: Suprijanto  , Zahra Naila , Juliastuti E.
Published: July 2015

Accurate information of microscopic topography is very important for efficacy assessment of a surface texture of skin health. Due to the limitations of the direct visual assessment of skin microscopic topography, an optical dermastocopy is very common to be used as skin imaging device to magnify skin topography based on a white light reflection. The limitation of this method is its poor spatial resolution to quantify skin topography. In this work, microscopic skin imaging based on phase shifting method is configured using a DLP pico-projector with LED illumination and a handheld digital microscope. As illuminator for the digital microscope, the DLP projector is programmed to generate patterned light on skin surface. Image processing is required in providing accurate information of surface topography. The first step, a wrapped phase shifting must be extracted from acquired intensity images. The second step is obtaining unwrapped phase image, which is a critical process because it must be recovered from wrapped phase shifting that containednoise. Finally, phase offset due to multiples of 2π during phase unwrapping must be removed. Early experiments on simple object are carried out to test the level of distortion of fringe in several variations of contrast and also to test the performance of the system on several frequency variations. The test results indicate the depth proportion obtained from absolute phase image has the same trend as the proportion of direct measurement. Implementation on the skin surface profile performed on three test areas: the back of the hand and knuckle creases. Based on quantitative and qualitative analysis,our proposed scheme of skin imaging based on phase shifting is promising for surface profile measurement and imaging of the skin.
Velocity Measurement of EHD Flow Produced by Pin-Multi Concentric Ring Electrodes Generator
Authors: Sumariyah  , Kusminarto  , Hermanto Arief , Nurwantoro Pekik
Published: July 2015

Study of EHD flow by using generator corona discharge with electrodes configuration of pin to multi concentric rings (MCR) and pin to single ring (SR) have been curried out. We measured the velocity of EHD flow and determined the comparison of velocity of EHD flow produced by pin to single ring electrodes. The pin needle was made by stainless steel with a length of 50 mm and a tip diameter of 0.14 mm. The multi-ring electrodes constracted by three concentric rings with a metal material connected to each other and each ring has a diameter of 24 mm, 16 mm and 8 mm in width and the same ring thickness is 2 mm and 3 mm. Single ring electrode has a diameter, width and thickness respectively 24 mm , 3 mm and 2 mm. EHD was generated by using a DC high voltage of 10 kV. Pin as an active electrode of corona discharge and concentric rings multi/single ring electrodes as ions collector and passive electrodes. The velocity of EHD flow was measured by a hot-wire anemometer. We found that the velocity of EHD flow with multi-ring concentric electrodes larger than a single ring electrode. The measurement of velocity for two cases of electrodes configuration were limited at the certain voltage due to breackdown and arc phenomena. The maximum velocity of the of EHD flow using a pin-multi rings concentric was 0.7 m/s at a voltage of 6 kV.
Effects of Surface Tension on the Liquid Holdup and Wave Characteristics in Horizontal Annular Two-Phase Flow
Authors: Setyawan Andriyanto , Indarto  , Deendarlianto  , Prasetyo
Published: July 2015

The wave characteristics of horizontal annular two-phase flow in 16 mm diameter pipe were experimentally investigated using flush-mounted constant electric current method (CECM) sensors and visual observations. To examine the effect of surface tension on the wave velocity and frequency, air and three kinds of liquids with different surface tension were used, i.e., water, 2%-butanol solution, and 5%-butanol solution. The gas and liquid superficial velocities were varied from 12 to 40 m/s and 0.05 to 0.2 m/s, respectively. The liquid holdup was measured directly using CECM, while the wave velocity and frequency were determined using cross correlation and power spectral density functions of liquid holdup signals. Generally, combination of air and liquid with the highest surface tension gives the highest liquid holdup and wave frequency. Simple correlations for wave velocity and wave frequency were also developed.
Building Up of Surface Plasmon Resonance Instrument Using Spreeta 2000 and Arduino Mega 2560
Authors: Harsojo  , Pramesta Ervan Erry , Triyana Kuwat
Published: July 2015

A system to monitor the signal produced by surface plasmon resonance (SPR) has been designed and tested. The built-in sensor consists of a polarized light source having a wave length 840 nm and a built in 128 photodiodes constructed around the maximum SPR angle to detect the reflection light from the gold surface. The signal produced from the diodes is then amplified and digitized. We use 5173 Hz clock to sample the signal generated by the diode array pixel during the reflection process producing SPR signal around the maximum angle. We program Arduino Mega 2560 to process the signals and transfer it using Lab View to present the data versus sampling time. Doing this, we can record the SPR signal versus time, known as the SPR dynamic signal. To test the performance of the system and to know the properties of the SPR signal, we test the system using ethyl alcohol with concentration of 10% (v/v) up to 90% (v/v). The result shows that the system can be used to monitor the dynamics of SPR signal during the reaction process and it indicates the possibility of using the instrument to detect various kinds of SPR signal related to the chemical and or biological process in the samples.
Modeling of Seismic Wave Propagation at Tiris Geothermal Area Using 2D Spectral Element Method (SEM)
Authors: Suprianto Agus , Wahyudi  , Suryanto Wiwit , Subekti Agus
Published: July 2015

The spectral-element method (SEM) has been applied to simulate seismic wave propagation in 2D tentative geological model of Geothermal Area in Tiris, East Java Indonesia. we used 2-D model with 36 km x 5 km dimensions and discretized into 720 × 80 rectangular elements (mesh). We computed 8000 time steps with a sampling interval of 0.001 s using 10 Hz Ricker wavelet. The snapshots of seismic wave propagation along Tiris 2D geological model illustrate that SEM could accurately modeling seismic wave propagation. The seismic event that triggers a vibration in rock layers not only depend on the characteristics of the seismic earthquake source parameters and seismic wave propagation media, but also influenced by geometry of the media, such as topography and geological setting. The influence of ground topography, difference media, and structural geology were demonstrated by different time of wave arrival and different amplitudes. Therefore, SEM could be applied as preliminary study in geothermal exploration.
Transit Time Multipath Ultrasonic Flowmeter: An Issue on Acoustic Path Arrangement
Authors: Kurniadi Deddy
Published: July 2015

The multipath ultrasonic flow meter using transit time measurement is being widely used for industrial gas flow measurement. Since the AGA report no. 9 has released, the application of this flowmeter in natural gas metering system has become a technical standard. Currently, the commerical multipath ultrasonic flowmeter employs parallel acoustic path arrangement which consists of four, five or six pairs of ultrasonic transducer. This paper discusses an issue on the acoustic path arrangement of multipath ultrasonic flowmeter in an asymmetric flow profile. From this study, the parallel path arrangement gives relatively inconsistent measurement results when the flow velocity profile was asymmetric.
Effect of Light Illumination on Leaves Movement of Mimosa pudica
Authors: Soetedjo Hariyadi , Haryadi Bagus , Taspyanto Danu
Published: July 2015

A study on the effect of light illumination introduced to the leaves of Mimosa pudica was carried out using different light intensities. The leaves will open gradually from the closed condition after the light was illuminated. Plant of M. pudica was placed in the dark box during measurement meanwhile the Petiole (part of the stem) of the plant was at normal position (hanging up). The camera was fixed to the box to monitor the leaves’ movement continuous and real time. By using this method the change of the top view area of the leaves could be observed. A crossed line was drawn on the image recorded and was measured its length. The calculation of the length gives the percentage of leaves at open during the observation time. Ultrasonic apparatus was also used to monitor the change of leaves. From the results, at an illumination intensity of 200 Lux, the percentage of leaves to open completely with respects to the observation time was found to increase nonlinearly by taking the time of 25 minutes. For intensities of 400 Lux, the trend of curve was also similar but increase rapidly. The ultrasonic signals show much stable at 200 Lux comparing to 400 Lux that was fluctuating. That may be due to the relatively faster movement of the leaves to open. This natural phenomenon is interesting and may introduce any change of natural indication that could be explored for further applications.
The Use of Acoustic Emission for Leak Detection in Steel Pipe
Authors: Putra I.B. Ardhana , Prasetiyo Iwan , Sari Dewi Permata
Published: July 2015

A leak detection system using acoustic emission methods is developed. For this, an experimental rig to detect leak was built using 8” galvanized steel pipe. The length of the pipe is 2 meters. A leak was made with 3 mm diameter and located in 1 meter from the end pipe. The pipe was filled with water and compressed until certain pressure reached. An acoustic emission transducer from Brüel and Kjær type 8313 is mounted on the pipe wall and connected to digital oscilloscope to detect AE signal. The experiment conducted by placing a sensor at a distance of 15 cm, 30 cm, 45 cm, 60 cm, and 75 cm from the position of the leak. Measurements were also performed with the variation of the pressure 3 bar, 4 bars, 5 bars, 6 bars, and 7 bar for those points.Considering acoustic emission wave travelling on pipe is plane wave, leak detection using energy attenuation emission become possible that is different from the method commonly used. Propagation constant is thus required and obtained based on experimental result where the amplitude varies with the spatial and pressure. It is found that for the case considered here. Subsequently, distance of leak location can be determined by the propagation constant and the ratio of energy. Using this method, the error of prediction is about 15.8 %.
A System for Characterizing Batteries and their Charging-Discharging Properties
Authors: Munir Muhammad Miftahul , Wahid Syamsudin Nur , Iskandar Ferry , Khairurrijal
Published: July 2015

Currently, battery is very indispensable as a power supply of various electronic devices. Therefore, research on batteries has developed rapidly and their charging-discharging properties must be characterized. This paper reports the development of an electronic system used to characterize batteries. The system consists of a programmable power source (PPS), a programmable load (PL), an amperemeter, a voltmeter, and a computer. The PPS and PL are used interchangeably, one for charging and the other for discharging. A battery under test (BUT) is directly connected to the PPS and PL interchangeably. A 1.2 V NiMH battery with a capacity of 750mAh has been characterized their charging-discharging properties. It has been found that the curves of charge and discharge are in accordance with the theories.
An Overview on Surface Hardening of Titanium Alloys by Diffusion of Interstitial Atoms
Authors: Güleryüz Hasan , Atar Erdem , Seahjani Fared , Çimenoğlu Hüseyin
Published: July 2015

In this paper, diffusional surface hardening processes utilized to overcome the poor tribological performance of titanium and its alloys is briefly introduced. More specifically, surface treatments known as thermal oxidation, nitriding and boriding offering the advantage of producing graded surfaces comprising hard compound layer and diffusion zone by diffusion of interstitial atoms (oxygen, nitrogen and boron) are overviewed.
An Essay on the Heat of Transport in Solids and a Partial Guide to the Literature
Authors: Lidiard A.B.
Published: July 2015

This article reviews the subject of the Soret effect and Thermodiffusion in solids more generally. In doing so it draws upon computer simulations made with a method (the Grout-Gillan method) derived from the Green-Kubo approach to transport coefficients in solids. The insights into the make-up of heats of transport parameters, Q*, so obtained are described and used to provide additional insight into measured heats of transport in situations where no reliable theories or simulations exist. These insights also point to the relations between heats of transport on the one hand and phonon thermal conductivity and focussed collision sequences on the other. These relations point to circumstances where the heat of transport may be small (e.g. low coordination in the lattice) or can be estimated from heats of activation for atom movements. In other cases the Grout-Gillan simulation method may offer the most reliable approach. These new insights are expected to be useful in materials modelling.
Effect of Mn Doping on Magnetic and Dielectric Properties of Bi2Sn2O7
Authors: Udod Lubov V. , Aplesnin Sergey S. , Sitnikov Maxim N. , Eremin Evgenii V. , Molokeev Maxim S.
Published: July 2015

The Bi2(Sn0.95Mn0.05)2O7 compound existing simultaneously in two polymorphic modifications, namely, orthorhombic and cubic has been synthesized for the first time by solid-phase synthesis. The magnetic, dielectric and electrical properties of the compound have been studied. Anomalies in the temperature dependences of the electrical resistance and magnetic propoties have been found. These features are explained as martensitic phase transitions.
Anomalous Hall Effect in 2D DMS
Authors: Oveshnikov Leonid N. , Kulbachinskii V.A. , Davydov Alexander B. , Aronzon Boris A.
Published: July 2015

Transport and magnetic properties of δ-Mn doped GaAs/InGaAs/GaAs quantum wells (QW) with various In content were studied at temperatures 4.2K≤T≤300K. Fluctuation potential (FP) appeared to be crucial for transport characteristics of structures under investigation. The magnetic percolation transition was observed at temperatureTpin the range 20 - 40K. TheTpdependence on the In content is nonmonotonic due to the peculiarities of free-carrier mediated exchange interaction mechanisms. The change of the anomalous Hall effect (AHE) sign with decreasing temperature was detected at temperatures close to theTp. The main reason of the AHE sign change is the variation of contributions of different AHE mechanisms (intrinsic and side-jump) caused by the reduction of spin-dependent scattering intensity with temperature decrease. We believe that our results are the experimental observation of the AHE intrinsic mechanism in 2D.
Green’s Function of Magnetoelastic Waves
Authors: Ignatchenko Valter A. , Polukhin Dmitry S.
Published: July 2015

The matrix (5x5) Green's function of magnetoelastic waves in an isotropic magnetoelastic medium taking into account the dipole-dipole interaction has been derived. The imaginary parts of diagonal and off-diagonal elements of the Green's function in the crossing resonance of spin and longitudinal elastic waves has been investigated. It is shown that under changing the angle of wave propagationθthe amplitudes of Green functions change drastically due redistribution of energy between the magnetic and elastic oscillation. Approximate expressions for the dependence of the widths of the gaps in the spectrum on the angleθhave been also derived.
Role of Magnetic Subsystems to Form a Complex Magnetic Structure Mn2GeO4 Single Crystals
Authors: Volkov Nikita V. , Mikhashenok N.V. , Sablina K.A. , Pankrats A.I. , Tugarinov V.I. , Balaev A.D. , Gorev Michail V.
Published: July 2015

Present paper reports of resonance properties of Mn2GeO4 single crystals. The data confirm the formation of a complex spiral magnetic structure at low temperatures. It is shown that the spin reorientation may be associated with the competition anisotropic contributions of the various subsystems of the manganese ions.
Spin-Lattice Coupling and Peculiarities of Magnetic Behavior of Ferrimagnetic Ludwigites Mn0.52+M1.52+Mn3+BO5(M=Cu, Ni)
Authors: Bezmaternykh Leonard , Moshkina Evgeniya , Eremin Evgeniy , Molokeev Maxim , Volkov Nikita , Seryotkin Yurii
Published: July 2015

Temperature-field and orientational magnetization dependences of single crystals were measured. Both samples demonstrate significant field-depending temperature hysteresis and low-temperature counter field magnetization. The correlation of orientational dependences of these effects and magnetic anisotropy is analyzed; the role of spin-lattice interactions is discussed.
Spin Excitations in Chiral Model of Graphene
Authors: Rybakov Yu.P.
Published: July 2015

We consider the generalization of the scalar chiral model of graphene, the 8-spinor field being included for the description of spin and quasi-spin excitations. The invariant Lagrangian density quadratic in derivatives is constructed using the principle of energy positivity and that of correspondence with the scalar model. The electromagnetic interaction is included through the extension of derivatives, the Pauli direct interaction term being added. We consider in detail an example of interaction with the external uniform static magnetic field.
Electron Doped CaMnO3: Mn-Site Substitution versus Ca-Site Substitution
Authors: Mostovshchikova Elena V. , Naumov Sergey V. , Zainullina Rimma I. , Bebenin N.G. , Arbuzova Tamara I. , Solin Nikolay I.
Published: July 2015

The magnetic, transport, optical, and elastic properties of the electron-doped manganites CaMn1-xMxO3 with Mn-site doping (M=Mo or W, x≤0.20) are studied and the results are compared with those of Ca-site substituted manganites with the same Mn3+ concentration. If Mn3+ concentration is lees than 10%, the charge carriers' localization due to lattice distortions in the Ca-site doped samples is stronger than the localization caused by magnetic dilution in the case of Mn-site substitution. At higher Mn3+ concentration, the magnetic dilution plays a key role.
Annealing Influence on the Exchange-Bias and Magnetostructural Properties in the Ni50.0Mn36.5Sn13.5 Ribbon-Shape Alloy
Authors: González-Legarreta L. , Ipatov M. , González-Alonso D. , Kamantsev Alexander P. , Koledov Victor V. , Shavrov Vladimir G. , Hernando B.
Published: July 2015

We report on the influence of short annealing treatments at 923 K and 1073 K during 10min on both martensitic transformation and exchange bias effect for the Ni50.0Mn36.5Sn13.5Heusler alloy ribbon by means of magnetic measurements. We have observed that the martensitic transformation is shifted towards higher temperatures with increasing annealing temperature. Furthermore, isothermalM(H)hysteresis loops performed under field-cooling protocol show an exchange bias effect for as-quenched and two annealed ribbons, which indicates the existence of ferromagnetic-antiferromagnetic interactions at low temperatures. In particular, we observe thatHCdiminishes with the increasing of the annealing temperature, butHEis not affected by the heat treatment.
Direct and Inverse Magnetocaloric Effect in Ni1.81Mn1.64In0.55 Multifunctional Heusler Alloy
Authors: Fayzullin Rafael , Buchelnikov Vasiliy D. , Drobosyuk Mikhail , Mashirov Alexey , Kamantsev Alexander , Hernando Blanca , Zhukov Maxim , Koledov Victor V. , Shavrov Vladimir G.
Published: July 2015

The magnetocaloric effect (MCE) in Ni1.81Mn1.64In0.55 Heusler alloy has been measured by the direct method. The field dependences of the magnetization were obtained. The phase transition temperatures were determined. The maximal adiabatic temperature change ΔTad near the Curie temperature is 1.8 K under the magnetic field change ∆H = 18 kOe. The inverse MCE (∆Tad = -3.72 K) in the same field change takes place near the temperature of martensitic transformation.
Heat Pumping Scheme Based on Inducement of the F-AF Transition in FeRh by Pressure
Authors: Rodionov V.V. , Rodionova V.V. , Annaorazov M.P.
Published: July 2015

On the base of the model S–T projection of S–T–P surface for FeRh alloy one of the possible of the heat pump cycles type is drawn up: with acquisition by the alloy the heat from external heat source. Corresponding efficiency of these cycle as functions of temperature at various differences between initial and final temperatures (permanent thermal load ΔT) and as a function of pressure at various differences between initial and final temperatures are analyzed. It is found, particularly, that within the temperature range (320 – 370) K and pressure range (0.4 – 1.0)∙109 Pa efficiency of the heat-pump cycles takes the values from the interval from 30 to 35. These values are comparable to those found recently with using the tensile stress up to ψ = 1∙109 Pa and with using the magnetic field up to H = 2∙106 A/m.
Magnetocaloric and Magnetoelastic Properties of the Gd5Si2Ge2 with Small Indium Substitutions in p-Sublattice
Authors: Nikitin S.A. , Bogdanov Anatoly E. , Ovchenkova Ioulia A. , Ovchenkov Evgeniy A. , Smirnov Andrey V. , Morozkin Alexander V.
Published: July 2015

The purpose of this work was the complex investigation of magnetic, magnetocaloric and magnetoelastic properties of compounds based on Gd5Si2Ge2 with small In substitutions in p-sublattice. The conducted measurements revealed that both the magnetocaloric effect and the volume magnetostriction upon cooling reach the higher values than upon heating. Indium substitution leads to the appearance of the second maximum on the temperature dependence of the magnetocaloric effect resulting in the increase of the refrigerant capacity.