bluuebunny/crossref_metadata_2025 huggingface dataset:
Peran Pemantauan Pertumbuhan Dalam Upaya Pencegahan Stunting Anak 0-23 Bulan di Indonesia: Temuan Riskesdas 2013
Authors: Fentiana Nina , Tambunan Formaida , Ginting Daniel
Published: December 2022

Stunting anak usia 0-23 bulan di Indonesia meningkat 3.8% dari tahun 2016 ke tahun 2018.  Angka stunting yang tinggi jika tidak segera diturunkan akan berisiko pada pertumbuhan fisik anak tidak maksimal, gangguan kognitif anak yang irreversible (tidak bisa diubah) dan dibawa seumur hidup anak yang akhirnya Indonesia berisiko mengalami lost generation. Studi ini bertujuan mengetahui peran pemantauan pertumbuhan anak dalam upaya penurunan stunting anak 0-23 bulan di Indonesia dengan menganalisis data Riset Kesehatan Dasar tahun 2013 menggunakan disain cross sectional. Unit analisis adalah anak 0-23 bulan yang tinggal bersama ibunya. Sejumlah 11029 anak 0-23 bulan memenuhi syarat untuk dimasukkan dalam sampel penelitian. Penentuan status stunting anak dilakukan menggunakan WHO Anthro 2018. Data dianalisis menggunakan regresi logistik berganda dengan interval kepercayaan 95% (CI). Hasil analisis menunjukkan bahwa pemantauan pertumbuhan anak (penimbangan berat badan anak) dan adalah faktor dominan yang berhubungan dengan stunting anak 0-23 bulan di Indonesia. Anak usia 0-23 bulan yang tidak dipantau pertumbuhannya (tidak ditimbang berat badannya dalam 6 bulan terakhir) memiliki peluang 1,32 kali mengalami stunting dibanding anak yang dipantau pertumbuhannya (AOR 1,32; 95% CI 1,18-1,47). Temuan ini membuktikan bahwa posyandu sebagai ujung tombak kegiatan pemantau pertumbuhan anak memegang peran penting dalam upaya pencegahan stunting di Indonesia.
The Word Ummi And Its Derivation In The Qur'an (Semantic Analysis)
Authors: Anwar Rahmah , Abdullah Abdullah
Published: December 2022

The word ummi originally meant someone who was not good at reading and writing which happened in the jahiliyah era or what is known as the age of ignorance, but this word has other meanings. Therefore, this study aims to find out the word ummi and its derivation in the Qur'an. In this study, the researcher used a qualitative type of research using a descriptive approach, which by being described in the form of words and language, in a special natural context and by utilizing various scientific methods. In this study, it was revealed that the word ummi and its derivation in the Qur'an when viewed from each verse of the Qur'an with all its derivations into two groups. The first group is some of the scholars of the book, found in surah al-Baqarah verse 78. The Second Group are people outside the scribes, which is meant those who are outside the scribes meaning people who do not believe in the books that are returned to the prophets who have received revelation from allah swt before the prophet Muhammad Saw.
Шогун – календарный праздник земледельцев Памира (этнолингвистическое исследование лексики ишкашимского языка)
Authors:   Институт языкознания РАН Москва, Россия, Назарова З. О.
Published: December 2022

В статье анализируется лексика, связанная с новогодними традициями и обрядами новогоднего праздника Навруз, известного в ишкашимском языке как Шогун. Приведены и проанализированы языковые данные, связанные с обрядами очищения и украшения дома, подготовкой новогодней символики, особыми ритуальными запретами при проведении праздника и формулами поздравления, а также с первыми обрядовыми работами в поле. The article analyses the vocabulary associated with the New Year traditions and rituals of Nowruz, the New Year holiday known locally as Shogun, in Ishkashimi. We analyse language data related to the rites of cleansing and decorating the house, the preparation of New Year’s symbols, special ritual prohibitions in the holiday period and local greeting formulas, as well as data associated with rites of the first ploughing of the field.
Evaluation of the mechanical behaviour of poplar specimens with and without fingers subjected to tensile stress by means of acoustic emission and dic
Authors:   University of Granada, Rescalvo Francisco J. ,   University of Santiago de Compostela, Portela María ,   University of Granada, Bravo Rafael ,   University of Santiago de Compostela, Lorenzana Jose ,   University of Granada, Cruz-rodríguez Carlos ,   University of Granada, Guaita Manuel ,   University of Granada, Gallego Antolino
Published: December 2022

Engineered wood product (EWP) offers an improvement in performance and mechanical properties over the use of sawn timber. This is mainly due to the fact that these products can eliminate defects such as knots, splits, etc. The removal of these defects has been achieved through the development of the finger-joint technique. This technique makes it possible to merge boards together to produce the desired length or width, making it possible to manufacture, among other products, laminated beams of larger dimensions. Therefore, the evaluation of these joints in a laminated element is vital to ensure a quality final product, as they become the areas with the highest stress concentration. To this end, this work aims to carry out an evaluation of the mechanical behaviour of elements with and without finger-joints made of poplar monitored with acoustic emission and DIC, as well as to obtain parameters to predict the failure in the specimens with finger-joints.
Pipe dent evaluation by acoustic emission during hydraulic pressure tests
Authors:   Prediest Ltd.(s.r.o.), Svoboda Vaclav ,   Prediest Ltd.(s.r.o.), Žemličk František
Published: December 2022

Buried pipelines transporting gas and oil are influenced by surrounding soil during long time service. In many cases they are locally deformed by soil movement, especially by hard stones. External local pressure makes limited deformation of original shape of pipe diameter in time. Those types of local deformations are known as a dents. At those areas, the insulation layer is usually damaged and small defects (like cracks) are created in dents. Colonies of small stress corrosion cracks are observed. In this contribution, the evaluation of typical dents is investigated by hydraulic pressure tests, including the fatigue tests. Acoustic emission was used to detect the behaviour of dent in pipe section until the limit state. AE monitoring during pressure tests gave very clear answer of defect activity vs. loading pressure. Parallel to this monitoring, another NDT method, MMM was used with promising results.
Acoustic emission monitoring of the textile reinforced cement (trc)-to-masonry shear bond
Authors:   University of Lyon, Reboul Nadège ,   Université Savoie Mont Blanc, Saidi Mohamed ,   University of Lyon, Gabor Aron
Published: December 2022

This study focuses on the potential of Textile Reinforced Cementitious (TRC) composites with alkali-resistant glass textile to reinforce masonry structures. In particular, a better identification of the debonding mechanisms is a crucial point for a more efficient use of these composites. Twelve single-lap shear bond tests are performed to investigate four strengthening configurations - two matrices and two reinforcement ratios. This paper discusses the applicability of acoustic emission to assess the damage state of TRC during adherence testing. The flexibility of the matrix used and the amount of reinforcement of the TRC affect the cumulative amplitude distributions. The accumulation of the partial frequency associated with high frequency (above 400 kHz) is a precursor of a strong contribution of the textile in the load transfer.
Impact source identification on pipes using acoustic emission energy
Authors:   Robert Gordon University, Abolle-Okoyeagu Chika Judith ,   Heriot-Watt University, Torralba Javier Palacio ,   Heriot-Watt University, Yuhang Chen ,   Heriot-Watt University, Reuben Robert. L.
Published: December 2022

Impact is a common source of damage in pipes and pipeline systems and detecting the location and nature of damage is vital for reliability and safety of these systems. The main difficulty in the use of AE technology for such applications is being able to investigate the extent to which the temporal structure of such a non-impulsive event can be reconstructed using sensors located on the external surface of a pipe at some distance from the source. There is currently no reliable way of relating the temporal structure of the generating event to the temporal structure of an AE source. This work uses a set of matching AE experiments and finite element simulations to study the relationship between the generating AE event (dropped ball on a steel surface) and the resulting stress-time history recorded at a given point on the surface of the pipe. Two test objects were used; a solid cylindrical steel block of diameter 307mm and length 166mm and a 2m pipe length of diameter 100mm and wall thickness 10mm. The AE resulting from the surface impacts was recorded over a period of 2 seconds for both experiments and simulations. The work builds on an earlier study with the same test objects using impulsive sources. The results confirmed that a mechanical disturbance which is extended in time can be identified from its energy-time imprint carried on the stress wave.
A new approach to ultrasonic characterization of fluid embedded in two viscoelastic layers using the transfer matrix method
Authors:   University Ibn Zohr, Mounir Tafkirte ,   University Ibn Zohr, Adil Hamine ,   University Ibn Zohr, Hicham Mesbah
Published: December 2022

In the present work, our objective is to characterize fluids by the ultrasonic pulse echo method. Nowadays, the characterization of these fluids has received a great scientific and practical importance, it requires the development of a more efficient control technique in order to meet the desired quality and safety rules. Indeed, a matrix transfer approach has been introduced to model the signal propagation in a multilayer medium immersed in a fluid. This approach is mainly based on the calculation of the scattered signal in the time domain of a multilayer immersed in water in order to verify the ability to calculate the ultrasonic parameters, and possibly the velocity and attenuation. We then deduce the acoustic properties of fluids and compare with literature data (experimental). This approach has also been suggested as a new alternative to exploit for fluid characterization.
Acoustic emission monitoring of abrasion and corrosion in double-walled pipelines
Authors:   Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Tschöke Kilian ,   Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Pietzsch Alexander ,   KRONOS TITAN GmbH, Kippert Thomas ,   Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Schubert Lars
Published: December 2022

At KRONOS TITAN, double-walled pipelines are used in production of Titandioxid. An abrasive medium is transported in the inner pipe at high temperatures. In the outer pipe, cooling water ensures that the process is cooled down. During the process, it is important that no abrasion leads to complete wall erosion and thus to leakage between the inner and outer pipe. During a test campaign lasting several months, a section of such a pipe was instrumented with acoustic emission measurement system on the outer pipe and the abrasion process in the inner pipe was monitored with AE until the removal of the pipe section. Different AE-signal parameters (Events, Hits, Energy and Frequency) were investigated regarding their suitability and are discussed in this contribution. The results of the acoustic emission measurements with regard to the location and progress of damages were then compared and verified with classic NDT test results.
Evaluation of experience from long-term ae monitoring
Authors:   Empa, Swiss Federal Laboratories for Materials Science and Technology, Brunner Andreas J. ,   Vallen-Systeme GmbH, Trattnig Horst
Published: December 2022

A working group within the Committee on Acoustic Emission Testing of the German Society for Nondestructive Testing (FA-SEP of DGZfP) has collected published data on the long-term behavior of the AE or the Guided Ultrasonic Wave (GUW) measurement chain (sensor, sensor coupling and mounting, signal transmission, data acquisition and storage). Since only scant data is publicly available, the working group drafted a questionnaire for collecting respective information from the committee members. The returned questionnaires indicate that data acquisition and storage likely pose problems more frequently than other parts of the measurement chain. The only exception noted was for one case of integrity monitoring at elevated temperatures. In this case, sensor sensitivity was observed to decrease compared to the performance at room temperature, requiring the mounting of additional sensors for achieving AE source location with the same resolution. Based on the empirical information, recommendations for long-term monitoring with AE and GUW are discussed. These comprise, e.g., periodic checks of sensors and measurement chain, periodic data back-up, and planning of maintenance and repair.
Monitoring Of Fresh Concrete With Superabsorbent Polymers (Saps) Using Acoustic Emission (AE)
Authors:   Vrije Universiteit Brussel (VUB), Korda Eleni ,   Vrije Universiteit Brussel (VUB), Tsangouri Eleni ,   Universite Libre de Bruxelles, Snoeck Didier ,   University of Ghent (UGent), De Schutter Geert ,   Vrije Universiteit Brussel (VUB), Aggelis Dimitrios G.
Published: December 2022

In fresh concrete, early-age shrinkage is affected by many factors, such as thermal deformations moisture loss and the hydration reaction. Novel admixtures for internal curing, like SuperAbsorbent Polymers (SAPs) can be used to mitigate the shrinkage phenomenon. These admixtures strongly modify the microstructure influencing the Acoustic Emission (AE) activity. Acoustic emission has been proven adequate to monitor activities during the curing of fresh cement-based materials. However, so far, it is difficult to distinguish the original mechanisms due to the overlapping nature of the processes that take place. In addition, localization of AE sources is not possible due to the heterogeneous and damping nature of the fresh material. The motivation of this study is to obtain real-time information on the different ongoing processes in fresh concrete, like settlement and shrinkage cracking, using AE and comparing the results to concrete containing SAPs. A preliminary study for 3D source localization in fresh concrete is also performed. The goal is to control concrete curing and confirm suitable final mechanical properties, resulting therefore in more sustainable materials.
Acoustic emission-based structural health monitoring concept for corrosion of aluminum aircraft structures
Authors:   Johannes Kepler University Linz (JKU), Erlinger Thomas ,   Johannes Kepler University Linz (JKU), Kralovec Christoph ,   Johannes Kepler University Linz (JKU), Schagerl Martin
Published: December 2022

In the aircraft industry, where highly optimized aluminum structures and most stringent safety requirements meet, corrosion of aluminum is an important issue to be controlled. To this end, several structural health monitoring (SHM) methods have already been demonstrated, including the acoustic emission (AE) method, which has shown potential for corrosion monitoring. Typically, immersion-like setups are used for demonstration. However, recent results at the authors’ research group also show the potential of the AE method to monitor atmospheric corrosion of aluminum aircraft structures. This contribution presents a SHM concept for the identification, i.e., detection, localization, quantification, and typification, of corrosion of thinwalled aluminum structures by AE. The proposed monitoring concept combines time and frequency domain features of corrosion triggered AE signals and AE source localization-based imaging with a-priori knowledge of structural configuration and loading by the utilization of machine learning methods to quantify and typify corrosion. Successful detection of atmospheric corrosion of aluminum by AE is briefly presented. Furthermore, the concept is theoretically discussed for quantification and typification of corrosion forms typical for atmospheric corrosion conditions.
Characterization of optical ae signals at loading of fibre reinforced composites
Authors:   LTH Castings d.o.o, Misson Martin ,   University of Ljubljana, Potocnik Primoz ,   University of Ljubljana, Bergant Zoran ,   Optics 11, Sorgente Mario ,   University of Ljubljana, Govekar Edvard ,   University of Ljubljana, Sturm Roman ,   University of Ljubljana, Kek Tomaž
Published: December 2022

Characterization of acoustic emission (AE) signals in loaded materials can reveal structural damage and consequently provide early warnings about product failures. Therefore, extraction of the most informative features from AE signals is an important part of the characterization process. This study considers the characterization of AE signals obtained from bending experiments for biocomposite and glass fiber epoxy (GFE) composites at room temperature and low temperature. For the acquisition of AE signals, fiber optic sensors (FOS) are used that can outperform classical electrical sensors under challenging operational environments. In this paper, we propose the extraction of deep features using different machine learning methods. The deep features are compared with extracted standard AE features. Then, the different feature sets are analyzed through discriminant analysis, neural networks, and extreme learning machines, combined with feature selection, to estimate the predictive potential of various feature sets. The proposed signal processing structure is focused on the classification of AE signals to recognize the source material, evaluate the predictive importance of extracted features, and evaluate the ability of used FOS for evaluation of material behavior under challenging low-temperature environments.
Filtering approaches of AE data in damage severity assessment of highly emissive concrete structures under loading
Authors:   University of Messina, Scionti Giuseppe ,   University of Messina, Calabrese Luigi ,   University of Messina, Proverbio Edoardo
Published: December 2022

The application of the AE technique in the field of civil engineering requires overcoming various issues related to several factors such as structure complexity, material nonhomogeneity, signal attenuation, environmental noise. In this concern, multivariate statistical analysis was successfully applied to manage AE data and discriminate relevant features related to main damage mechanisms in concrete. Principal component analysis (PCA) and artificial neural networks (ANN) were applied with promising results. However, a fundamental limitation of these numerical methods is that they are not user-friendly and their application requires suitable scientific expertise. In such a context, the development of an easy de-noising protocol, able to simplify the AE data analysis for damage structure assessment and failure prediction, is a fundamental improvement toward the applicability of this technology on real-scale concrete structures. In the present paper, the analysis of AE data collected during loading and unloading cycles up to the failure on a real scale post-tensioned concrete beam is reported. Different denoising approaches were adopted to remove a large incoherent AE population originating from the friction of hydraulic actuator steel plate on concrete surface and friction on beam supports during loading/unloading steps. Filtered data were then synchronized with the beam deformation and crack width opening. De-noising algorithms have then been validated by structure damage severity assessment using statistical indexes such as calm ratio, load ratio, severity, and historical index. The procedure was tested with interesting results on PT concrete beams characterized by different pre-existing damages on steel tendons. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
AE localization issues in heavy reinforced post-tensioned concrete beams
Authors:   University of Messina, Scionti Giuseppe ,   University of Messina, Calabrese Luigi ,   University of Messina, Proverbio Edoardo
Published: December 2022

Damage localization is a relevant issue in structural health monitoring (SHM) of concrete structures. A greater level of insight into the structure can be so reached enabling more informed maintenance decisions and reducing operation and maintenance costs. The basic approach to acoustic emission localization, which is often referred to as the Time of Arrival (TOA) method, is based on detecting an AE source at a number of spatially-distributed sensors. However, in anisotropic media such as reinforced concrete, the basic assumptions for the TOA method become largely invalid. Different robust methods suitable to anisotropic media, incorporating an angular-dependent velocity term into the minimization process have been developed in the past. However, the wave-velocity profile is not always known. More recently a number of other authors have adopted various Bayesian approaches as part of AE localization strategies, including the use of a Markov chain Monte Carlo inference scheme as well as nonlinear Kalman filters. The use of a probabilistic approach in source location has become increasingly applied for AE source localization in complex large structures. In heavy reinforced post-tensioned concrete structures acoustic wave path can be significantly influenced by rebars as well as metallic post-tensioning ducts. Cracks opening can further influence acoustic propagation paths and greatly influence the reliability of AE source localization algorithms. In the present paper, different localization procedures have been developed and tested on post-tensioned concrete beams during loading and unloading cycles as well as on small homogeneous concrete blocks. In a highly emissive environment, significant difficulties have been reported also in event identification thus further reducing localization procedure reliability. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
An acoustic emission approach to the structural health monitoring of historical metallic tie-rods
Authors:   Politecnico di Milano, Muscolino Francesco ,   Politecnico di Milano, Carboni Michele ,   Politecnico di Milano, Felicetti Roberto
Published: December 2022

The application of Non-Destructive testing and Structural Health Monitoring systems in historical buildings is of great interest and actuality due to the need to guarantee safety and conservation. The present memory focuses on the case study of the historical wrought iron tie-rods of Duomo di Milano, Italy. In recent years, two of these elements presented critical failures, making necessary the replacement. Consequently, a monitoring methodology, based on acoustic emission, was defined. First, the fracture toughness of historical wrought iron was experimentally characterized by employing standard small scale specimens taken from one of the failed tie-rods. At the same time, acoustic emission was acquired to define a methodology for detecting and localizing the events due to damage in the material, separating those due to background noise by applying suitable pattern recognition algorithms. Subsequently, a tensile test was performed on a full scale section of the same tie-rod. Before and after the test, phased-array ultrasonic testing and magnetic particles inspections were carried out to identify and map defects and their possible development due to load application. From the analysis, it was possible to conclude that magnetic inspections allow identifying the presence of surface defects effectively, phased-array ultrasonic testing allows to estimate the geometry of the defect accurately and acoustic emission has proved to be a promising technique for monitoring the structural integrity of in-service historical metallic tie-rods. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
Valve inspection with acoustic emission – what are the boundaries, what are new opportunities for predictive maintenance?
Authors:   Senseven GmbH, Hettegger Michael ,   Senseven GmbH, Altmann Christoph
Published: December 2022

Studies show that 5-10% of industrial valves are suffering from internal leakage which can lead to economic losses, health and safety issues or potentially to contamination or environmental pollution. Acoustic emission is an established technology to inspect valves for internal leakage. Despite the successful establishment of the acoustic emission technology, current solutions have shown some limitations. These are e.g. their complexity of use, the need of trained and experienced personnel, the time required to perform analyses and the use of solely proprietary and closed devices. Experts performing inspections in the field are facing challenges such as using the right measuring points, flow noise from nearby processes, finding the right duration of measurement and interpreting the results. Research has shown that interpretation of results depends very much on experts’ know-how and reproducible results have thus been difficult to achieve. This causes difficulty for companies to use the data for further purposes, such as predictive maintenance. In order to tackle that problem, Senseven has taken over 1000 measurements in laboratories together with more than 10 different valve manufacturers during the last year. To replicate real production situations, leakages were also simulated in the field, taking into account different media/pressures/different valve sizes/nominal diameters and valve types. The experience gained and the data collected were used to build a digital and smart inspection system based on an artificial neural network. The challenge was to build a system that could generate reproducible results, analyze data automatically and store it in such a way that companies could use it for predictive maintenance purposes. In our technical paper session, we would like to discuss the advantages of using acoustic emission for valve inspection as well as outline the current challenges companies and inspection service providers face when performing measurements. We will discuss our findings from the field simulations and present our artificial intelligence approach for automatic leak detection and leak rate estimation. In addition, we will demonstrate our Acoustic Emission Platform and how it helps companies collect and store acoustic emission data in a structured and organized manner, taking another step towards a more efficient testing process. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
Multimodal NDT monitoring of TRC sandwich under bending and early detection of interlaminar debonding
Authors:   Vrije Universiteit Brussel (VUB), Ospitia Nicolas ,   Vrije Universiteit Brussel (VUB), Tsangouri Eleni ,   Vrije Universiteit Brussel (VUB), Pourkazemi Ali ,   Vrije Universiteit Brussel (VUB), Stiens Johan ,   Vrije Universiteit Brussel (VUB), Aggelis Dimitrios G.
Published: December 2022

Textile Reinforced Cementitious (TRC) sandwich composites provide a load-bearing, noncorrosive, lightweight, and durable alternative for steel-reinforced sandwich elements, and/or traditional steel-reinforced concrete. However, the composite nature of the material and slender nature of the facings render the fracture behavior complex. Insufficient interlaminar bond can cause premature debonding, substantially reducing the loadbearing capacity of the composite. Non-Destructive Testing (NDT) techniques seem the obvious choice to monitor the damage progression of the material without affecting, nor compromising the behavior of the composite, and predict their service life. In this study, TRC sandwich composites, subjected to quasistatic four-point bending, are monitored with three NDTs. Digital Image Correlation (DIC) allows to measure the surface strains and displacements. MMW Spectrometry, used for the first time in bending damage monitoring, allowed to detect damage such as cracking, or debonding, while Acoustic Emission (AE) allowed to localize and characterize internal cracking. In order to simulate premature debonding, the bond between the tensile TRC facing and the insulation, in the central zone, where the bending moment is maximum, was artificially destroyed. Results show that a weak interlaminar bond reduced the ultimate load of the composite by more than 50%. Additionally, DIC, AE and MMW Spectrometry proved useful to monitor and characterize damage. Multimodal data gathered from the multimodal NDTs showed to be complementary. DIC allowed to interpret AE and MMW Spectrometry data from a surface viewpoint, while AE parameters permit predictions at low load conditions, and detect internal cracking. For instance, the AE behavior at early load stage (less than 15% of the maximum load) of the TRC sandwich with destroyed bond showed significant differences than for the reference TRC sandwich. Specifically, it showed higher RA values, and lower AF than the reference TRC sandwich, suggesting more shear related early activity for, promoted by the damaged bond. Results were corroborated with DIC, while MMW Spectrometry seemed to follow closely the level of damage of TRC sandwich composites under quasi-static four-point bending. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
Simulation of acoustic emission in carbon fiber-epoxy matrix composite laminates due to transverse cracking: effect of ply stacking sequence
Authors:   National Institute of Applied Science ( INSA-Lyon)- University of Lyon, Doitrand Aurelien ,   National Institute of Applied Science ( INSA-Lyon)- University of Lyon, Hamam Zeina ,   National Institute of Applied Science ( INSA-Lyon)- University of Lyon, Godin Nathalie ,   National Institute of Applied Science ( INSA-Lyon)- University of Lyon, Reynaud Pascal ,   National Institute of Applied Science ( INSA-Lyon)- University of Lyon, Fusco Claudio ,   IRDL, Carrère Nicolas
Published: December 2022

This work focuses on the numerical simulation of the AE due to transverse cracking in laminate composites. The objective of the work is the experimental characterization and numerical simulation of the influence of the ply thickness and stacking sequence on transverse matrix cracking induced acoustic emission. AE signals induced by transverse matrix cracking are simulated numerically using finite elements (FE) for composite laminates exhibiting different number of plies and stacking sequences. 3D FE models of the specimens are set-up using Abaqus™ Standard. Either [0n/90n/0n] or [90n/0n/90n] (n=1 or 3) composite laminates are modeled, one ply thickness is 0.3 mm. Matrix transverse cracking in 90 deg. inner or outer ply is simulated. The influence of the ply thickness on acoustic emission signals recorded at the crack epicenter is significative only for inner ply transverse cracking, whereas similar signals are obtained for outer ply cracking. The frequency content of signals induced by outer ply transverse cracking does not depend on the ply thickness. Contrary to outer ply cracking, the influence of the ply thickness on inner ply transverse cracking induced signals is significative, especially on the frequency content, and on the frequency centroid only close to the crack (Fig. 1). Outer ply cracking rather exhibits signals with a low frequency content, not depending much on the ply thickness, contrary to inner ply cracking, for which the frequency content is higher and more dependent on the ply thickness. Fig.1: Frequency centroid as a function of distance between the source and the sensor obtained numerically for [0n/90 n/0n] and [90n/0n/90n] stacking sequences (n=1 or 3). Results obtained without sensor effect, with a virtual perfect sensor. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
Development of new AE technology to detect and characterize leak on nuclear shielding building from inside during integrated leakage rate test
Authors:   Mistras Group, SAS, Proust Alain ,   Electricité de France (EDF) R&D, Henault Jean-Marie ,   Electricité de France (EDF) R&D, Masson Benoît
Published: December 2022

French Projects of Investment for the Future, called “Research for Nuclear Safety and Radiation Protection” have been initiated to further research on the causes, the management, the impact of the observed nuclear accidents and to propose and validate solutions to limit the risk and the consequences. In this context the "Non Destructive Evaluation of nuclear plants containment” project” (ENDE) with eight partners (six research institutes and two industrials) supported by the “National Agency of Research”, proposes a methodology for the Non Destructive Evaluation of the containment capacity. The two major functions to be assess are strength and leak tightness. Under the frame of the VeRCoRs project EDF has developed and build a containment mock-up on the 1/3 scale (diameter 20m, height 20m, wall thickness 40cm) which has been used for some partners of ENDE project. Mistras has been involved in characterisation of concrete cracking during pneumatic proof tests either in ENDE and VeRCoRs programs. Since some leaks occurs in the area of monitoring we use AE to characterized them. The mockup has been used to develop and characterized an instrumentation and technology for leak detection with a major challenge leak detection has to be performed from this inside of the containment building with all the contingences of operating of full scale operating nuclear plant. This paper describe the steps of development and validation of the methodology up to the application this measurement on site help the leak characterisation during pneumatic ten year Integrated Leakage Rate Test at 4,2 bar. EWGAE 35, Ljubljana, Slovenia, 13th – 16th Sep. www.ewg
An Acoustic Beam Splitter
Authors:   University of Waterloo, Ginzel Edward ,   Innovation Polymers, MacNeil Rick ,   Innovation Polymers, Molina Mauricio
Published: December 2022

Splitting a beam so as to separate it into a transmitted and reflected component is normally associated with laser optics. An interesting feature was observed when designing a water-column delay line that suggested a similar beam splitting effect could be had for acoustic applications. This paper provides a description of the principles involved and a description of a prototype delay line using these principles.
Ovulation induction in Caribbean jennies in the tropics
Authors: French Hilari , Segabinazzi Lorenzo , Kent Ava , Nester Shelby , Peterson Erik , Gilbert Robert
Published: December 2022

The population of some endangered donkey breeds in tropical regions has declined recently. Therefore, there is an increasing interest to improve the reproductive management of these animals. Ovulation induction agents are often used in equine practice to optimize reproduction techniques. However, limited information exists to support its use in donkeys. Therefore, we compared 2 ovulation-inducing agents (commonly used in equine practice) to hasten ovulation in Caribbean jennies in the tropics. Five cycles of 8 Caribbean jennies were used. Jennies were monitored via transrectal ultrasonography and in 4 estrous cycles they had ovulation induced with either 2,500 IU of hCG or 1.8 mg of deslorelin acetate when a follicle measuring between 27 - 30 mm or > 30 mm in diameter was diagnosed. In the Control-assigned cycle, jennies were not treated with hormones and had spontaneous ovulation. Follicle diameters affected (p < 0.05) the interval to ovulation. When given with a follicle > 30 mm, either treatment reduced (p < 0.05) the interval to ovulation. A higher percentage of jennies ovulated within 48 hours after hCG or deslorelin acetate with > 30 mm follicle (p < 0.05), and with deslorelin acetate with 27 - 30 mm follicle (p < 0.05) than in the Control-assigned cycle. In conclusion, Caribbean jennies in tropics with > 30 mm follicle responded to ovulation induction with hCG or deslorelin acetate, with ovulation occurring within 48 hours.
Cervical duplication in dogs
Authors: Mahoney David , Nebel Amber , Whitacre Michael , Lyle Sara
Published: December 2022

Two maiden bulldogs with cervical duplication were presented for breeding management. Dogs were successfully impregnated via endoscope-assisted transcervical insemination (TCI) and had their litters via cesarean surgery. A common uterine body between 2 cervical openings and 2 uterine horns was noticed (with no other reproductive abnormalities) at surgery. Duplication of the cervix has apparently not been previously described in dogs. With TCI becoming a more frequently used method of breeding, it is probable that defects involving failed or incomplete fusion of the paramesonephric duct during embryological development will be more frequently observed by clinicians.
HUBUNGAN PENGETAHUAN DAN SUPERVISI DENGAN PENERAPAN PRINSIP ENAM BENAR DALAM PEMBERIAN OBAT OLEH PERAWAT PELAKSANA DI RUANG RAWAT INAP RSI SITI RAHMAH PADANG
Authors: Nopan Nopan Saputra , Sari Yance Komela , Desnita Eka
Published: December 2022

Nurses as part of the health care system is responsible for the provision of safe drugs. In order to achieve safe administration, nurses should pay attention to the six principles of client really is true, right drug, right dose, right time, right route, and right documentation. The phenomenon of the field obtained 30% of the drugs that are given are not documented, 15% of the drug is administered in a way that is not right, 23% of the drug is given at a wrong time, 2% of drugs are not given, 12% of the drug is administered at a dose yag right. Factors that affect the application of the principle of six true in drug delivery including knowledge and supervision. The aim of research to determine the relationship of knowledge and supervision with the correct application of the six principles of drug administration by nurses in inpatient unit RSI Siti Rahmah Padang.

This type of research is analytic survey design using cross sectional study. The population around the nurses in the inpatient unit of 52 people, with a sampling technique using total sampling. Processing the data through the editing stage, coding, entry, and cleaning. Results were analyzed using univariate and bivariate chi square test with 95% confidence level α = 0.05.

Based on the results, the application of the principle of six true in poor drug delivery (51.9%), while good (48.1%), 53.8% lower nurse's knowledge, while the less well supervised as much as 53.8%. There is a significant relationship between knowledge (p = 0.000) and supervision (0.027) with the correct application of the six principles in drug delivery.To perform an increase in drug administration services, health services should provide training and refresher on the principle of six correct drug administration. This can be done by organizing seminars / symposia and training regarding the professionalism of the administration of drugs and increase overall service.
Pentingnya Pencatatan Keuangan Dan Pencantuman Label Halal Produk Pada Home Industry Abon Ikan Tuna Segar G&R Masohi Shop Di Kelurahan Lesane Kecamatan Kota Masohi Kabupaten Maluku Tengah
Authors: Hariyanti Dwi , Asrida Wa , Musaid Sri Astuti , Hariyati Tri Retno
Published: December 2022

This community service was performed at the home industry of G&R Masohi Shope in Lesane Village, Masohi City District, Central Maluku Regency. This devotional activity is carried out with the aim to: 1) provide understanding and assistance to partners "G&R Masohi Shop" regarding the correct recording of business finance in accordance with accounting rules to know the development of partner business, 2) Provide understanding and assistance to partners "G&R Masohi Shope" ways and procedures of managing halal certificate of products from LP-POM MUI Maluku Province, in order to obtain permission to list halal labels on product packaging. The method of implementing community service activities used by the service team to solve partner problems is the method of training and mentoring. The result of this devotional activity is 1) The Partner is able to do the financial recording of his business well so as to maintain the existence and sustainability of his business, 2) The partner obtains halal certificate of  fresh tuna fish abon products from LPPOM MUI Maluku Province which can be included in the packaging of fresh tuna fish abon products G&R Masohi Shop.
Penerapan Alat Pelindung Diri Sebagai Upaya Keselamatan Dan Kesehatan Kerja Di Pabrik Tahu Dan Tempe
Authors: Sari Etika Sari , Junarsih Junarsih , Guchi Rizkya Fataya
Published: December 2022

Keselamatan dan Kesehatan Kerja merupakan semua Ilmu dan penerapannya untuk mencegah terjadinya kecelakaan kerja, penyakit akibat kerja, kebakaran, peledakan dan pencemaran lingkungan.. Upaya pencegahan kecelakaan kerja diperlukan untuk menghindari kerugian-kerugian yang timbul serta untuk meningkatkan kinerja keselamatan kerja di tempat kerja. Salah satu upaya yang dapat dilakukan untuk mengurangi kecelakaan kerja yaitu dengan menggunakan alat pelindung diri. Dalam Kegiatan PkM yang dilakukan dengan memberikan edukasi terkait pentingnya penerapan alat pelindung diri untuk menunjang keselamatan dan kesehatan kerja. Tujuan PkM ini untuk memberikan pengetahuan dan wawasan. Hasil  edukasi  yang  telah dilakukan  dapat  meningkatkan pengetahuan dan kesadaran dari para pekerja agar terhindar dari kecelakaan kerja dan penyakit akibat kerja.
Pengembangan dan Pelatihan Pengelolaan Situs Web UMKM Shofi Cookies
Authors: Sugiarto Dedy , Shofiati Ratna , Sari Syandra , Gunawan Muhamad Ichsan , Giffary Ridho Rachmat , Jubaidah Ida , Zulma Azhar Rizki
Published: December 2022

Shofi Group adalah usaha yang bergerak di bidang produksi kue yang didirikan oleh almarhum Guswan Zainal, suami dari umi Nyi mas Yusnaini pernah mendapatkan penghargaan Ibu Ibukota Award. Permasalahan yang ditemukan adakah ketiadaan website untuk memperkenalkan produk-produknya secara lebih luas baik di dalam negeri dan ke luar negeri. Tujuan kegiatan ini adalah untuk mengembangkan website pemasaran bagi Shofi Group serta memberikan pelatihan pengelolaan website. pengembangan website untuk UKM Shofi Group menggunakan pendekatan dari System Development Life Cycle (SDLC). Rangkaian kegiatan diawali oleh dua kali pertemuan dengan pemilik UKM yang membahas kebutuhan pengembangan web dilanjutkan dengan pembuatan website dan diakhir dengan pelatihan pada hari Minggu, 26 Juni 2022. Kegiatan Pelatihan Pengelolaan Situs Web UMKM Shofi Cookies yang direspon dengan hasil Sangat Baik ini dihadiri satu perwakilan shofi group sebagai admin web.
Pembuatan Mi Basah Dari Tepung Fermentasi Singkong Untuk Siswa Planet Nufo, Desa Mlagen Rembang
Authors: Rohadi Rohadi , Tutuko Bambang
Published: December 2022

Kegiatan pengabdian kepada masyarakat (PkM) bertujuan untuk memberikan pengetahuan dan keterampilan pembuatan mi basah berbahan tepung fermentasi Singkong dan pewarna bunga telang untuk siswa Planet Nufo, Desa Mlagen Kabupaten Rembang. Kurikulum Sekolah Alam Planet Nufo mengintegrasikan pendidikan akademik setingkat Sekolah Lanjutan Tingkat Pertama (SLTP) dengan sektor pertanian dan peternakan. Kegiatan dilaksanakan pada Selasa, 24 Mei 2022 diikuti 20 siswa.  Materi pelatihan (teori) disampaikan oleh pengabdi dengan metode ceramah, berlangsung di Aula Kampus, sementara praktik pembuatan mi berlangsung di ruang produksi sekolah diberikan oleh pengabdi, dibantu oleh dua orang mahasiswa. Hasil PkM memperlihatkan, bahwa pemberian teori mampu meningkatkan pengetahuan peserta, namun kurang efektif dengan nilai efektivitas penyuluhan (EP) sebesar 11 persen. Sedangkan praktik memberikan pengalaman dan keterampilan kepada peserta secara nyata. Hasil monitoring yang dilakukan pasca pelaksanaan PkM dengan metode wawancara kepada peserta dan guru pembimbing menunjukkan bahwa pelaksanaan PkM sangat bermanfaat. Peserta sudah mampu memproduksi tepung cassava terfermentasi secara mandiri dengan hasil baik. Peserta juga mampu mengulang pembuatan mi dengan memanfaatkan bahan dan peralatan yang dimiliki dengan hasil yang baik.
Emulgel: A Promising Technology for Topical Delivery of Herbal Extracts
Authors: Olayemi Olubunmi Jumoke , David Chukwuemeka
Published: December 2022

Topicaldrug delivery is a remarkable but arduous task due to the inherent barriersystem of the skin. More so, only a narrow range of drugs are available fortopical use because most drugs are hydrophobic in nature and this restrictstheir permeation and absorption into the skin. Herbal remedies have been usedin the treatment of various diseases including skin diseases for centuries and aregradually becoming acceptable as treatment options however, they are mostlyhydrophobic. Growing interests in combating these issues have led formulatingscientists to develop drug delivery systems like emulgels which are goodcarriers of hydrophobic drug molecules. Emulgels are a mixture of an emulsion anda gel, where drugs are incorporated into globules and solubilized, enhancingdrug absorption from the skin. They are easily spread over the skin, easilyremoved from the skin, possess emollient properties, are non-greasy, cosmeticallyappealing and have good penetrating abilities. This review highlights theimportance of emulgels in the delivery of herbal extracts/constituents, the methodsof formulations and an overview of herbal emulgel formulations that have beenexploited by different researchers. Emulgels have proven to be good prospectsin enhancing the topical delivery of herbals and improving the treatment of skininfections. 
Evaluation bearing capacity of ring footings on reinforced loose sand
Authors: Fartosy Sabah , Waleed Jawad , Abd Hacheem , Al-Madhhachi Abdul-Sahib
Published: December 2022

Ring footing represents a significant structural member in different applications such as fuel or water storage tanks in addition to other structures. The advantage of this type of footing is related to the ability to reduce the weakness of some soils that may affect the safety of structures. An experimental testing program was conducted by using a small-scale model in the laboratory of the college of engineering at the university of Al-Mustansiriyah which consists of twelve ring footing models resting on loose sand reinforced by geogrid layers. The parameters that studied in this research are the diameter of ring footing, thickness of ring, the position placed of one reinforced layer and vertical spacing between two reinforced layers. The findings of this research shown that the optimum percentage of diameter ratio of ring footing is (0.25) and when the depth-ratio increases, the bearing-capacity of ring footing begin decreases. In general, the increase in ring thickness causes the bearing-capacity and the rigidity of ring foundation to increase. The optimum of the depth-ratio of the first reinforced layer is (0.25) and the optimum value of vertical-spacing bounded by layers is around (0.25) which produces a maximum value of the bearing-capacity. Its noticed that when these percentages exceeded value 0.25, the bearing-capacity of the ring foundation drops eventually.
La historiografía y su valor para la caracterización del objeto: la cerámica íbera gris
Authors: Rodríguez González David
Published: December 2022

Este texto reivindica el valor de los estudios historiográficos de temática arqueológica para caracterizar y conocer de una manera más aproximada y fidedigna a un objeto de estudio en particular. Toda categoría creada para ordenar nuestras evidencias, véase una tipología cerámica, tiene tras de sí un bagaje en la construcción de su conocimiento y a menudo remontarse a su propia historia de la investigación es el mejor mecanismo para avanzar en su correcta caracterización. El objetivo de este estudio es el de abordar el complejo proceso de determinación de uno de los cuatro tipos de cerámicas fabricadas por las poblaciones de la cultura íbera de la Edad del Hierro (s. VI-I a.C.) en la Península Ibérica, las producciones íberas grises a torno. Estas cerámicas fueron objeto de discusión, sobre todo en lo relativo a su origen, desde el mismo inicio de los estudios sobre la cultura íbera y, por el contrario, hasta fechas relativamente recientes no han sido definidas en detalle desde el punto de vista tecnológico, tipológico y funcional. Ello fue posible gracias a la superación del debate de su origen pudiéndose avanzar así en su definición.