An experimental study of the feasibility of phase‐based video magnification for damage detection and localisation in operational deflection shapes

Optical measurements from high‐speed, high‐definition video recordings can be used to define the full‐field dynamics of a structure. By comparing the dynamic responses resulting from both damaged and undamaged elements, structural health monitoring can be carried out, similarly as with mounted transducers. Unlike the physical sensors, which provide point‐wise measurements and a limited number of output channels, high‐quality video recording allows very spatially dense information. Moreover, video acquisition is a noncontact technique. This guarantees that any anomaly in the dynamic behaviour can be more easily correlated to damage and not to added mass or stiffness due to the installed sensors. However, in real‐life scenarios, the vibrations due to environmental input are often so small that they are indistinguishable from measurement noise if conventional image‐based techniques are applied. In order to improve the signal‐to‐noise ratio in low‐amplitude measurements, phase‐based motion magnification has been recently proposed. This study intends to show that model‐based structural health monitoring can be performed on modal data and time histories processed with phase‐based motion magnification, whereas unamplified vibrations would be too small for being successfully exploited. All the experiments were performed on a multidamaged box beam with different damage sizes and angles

Aktivitas Ngengat Scirpophaga Incertulas di Wilayah Kabupaten Klaten

The activities of Scirpophaga incertulas adult from Klaten Regency were studied from April to November 2010. The purposes of this study were to observe the activity of moth after adult emergence, their flying activity, and eggs oviposition. Two hundred pupae were collected from the field, then incubated in the laboratory and observed every hour for 72 hours. Flying activity was observed every hour by counting the number of moths that were found in the light traps. This observation was replicated three times during the dark; from 6:00 p.m. to 6:00 a.m. Oviposition activity of moths was observed by infesting twenty females of insect on the rice plants planted in the polybag and covered with plastic sheet. This oviposition activity was also observed every hour during the dark; from 6:00 p.m. to 6:00 a.m. in order to get the number of egg-laying moths. The results showed that the emergence of S. incertulas moth was mainly from 2:00 to 4:00 a.m., the flying activity was detected mostly from 6:00 p.m. to 1:00 a.m., and the moths ovipositing activity was mainly occured from 7:00 to 11:00 p.m. In addition, we found that the intensity of light affected the number of moths coming into the light trap. The light exposed from the 23 Watt lamp (1,500 lumen) was twice more effective in attracting the moths than the 11 Watt lamp (700 lumen).Penelitian aktivitas ngengat Scirpophaga incertulas telah dilakukan di Kabupaten Klaten dari April s.d. November 2010. Tujuan penelitian adalah untuk mendapatkan informasi tentang aktivitas kemunculan ngengat, aktivitas terbang dan peletakan telur. Dua ratus pupa yang diperoleh dari lapang diinkubasikan di laboratorium dan diamati sampai muncul ngengat. Jumlah ngengat yang muncul diamati setiap jam selama 72 jam. Aktivitas terbang diamati setiap jam dengan menghitung jumlah ngengat yang terperangkap pada lampu perangkap selama 12 jam dari pukul 18.00 s.d. 06.00 dengan tiga kali ulangan. Aktivitas peletakan telur diamati dengan menginfestasikan dua puluh ngengat betina pada tanaman padi di polibag yang disungkup plastik. Pengamatan aktivitas peletakan telur dilakukan setiap jam dengan mencatat jumlah ngengat yang bertelur selama 12 jam dari pukul 18.00 s.d. 06.00. Hasil pengamatan menunjukkan bahwa kemunculan ngengat S. incertulas paling banyak dijumpai dari pukul 02.00 s.d. 04.00, aktivitas terbang ngengat berlangsung dari pukul 18.00 s.d. 01.00 dan peletakan telur umumnya berlangsung dari pukul 19.00 s.d. 23.00. Kekuatan cahaya lampu perangkap berpengaruh terhadap kedatangan ngengat, cahaya lampu 23 watt (1.500 lumen) lebih banyak menarik kedatangan ngengat dibanding cahaya lampu 11 watt (700 lumen) dengan rasio 2:1

Comparison Between Hydro- and Osmo-priming to Determine Period Needed for Priming Indicator and Its Effect on Germination Percentage of Aerobic Rice Cultivars (Oryza Sativa L.)

This study compared hydro- and osmo-priming to determine period needed for seed priming indicator to emerge and its effect against water stress on germination percentage of some aerobic rice cultivars (Oryza sativa L.). Experiments were arranged in completely randomized design using three aerobic rice cultivars and PEG with four replications. Rice varieties (Inpago-8, IR64 and Situ Bagendit) were combined with four different PEG concentrations. Drought stress was simulated by different PEG solutions and with distilled water as control. Results indicated differentiations between hydro and on priming indicator time, while varietal difference was not significant. Fastest recorded time was obtained between 30-36 hours under hydro priming, PEG 100 g L-1 (63-69 hours) and 83-93 hours in PEG 200 g L-1 solution. Thus showing increased solution concentration led to prolonged priming indicator time. The highest germination percentage was obtained in Situ Bagendit treated with PEG 200 mg L-1 (90.25%) and the lowest obtained in Inpago-8 (75.75%) under control. It is better to use osmo-priming (PEG 200 g L-1) for teaching aerobic rice seed against drought stress. More research is needed to confirm benefits of seed treatment with PEG to cultivated crops under water stress, drought and salinity conditions

Adhesion Characterization of Palm Oil Mill Sludge Modified Asphalt Binder

The adhesion of mineral aggregates to asphalt binder is an essential point that attributes to the quality and performance of the asphalt mixture. Moreover, the considerable problem to the asphalt pavement could come from the lack of bonding between the materials. Generally, adhesion of mineral aggregates depends on the source or type of aggregate and asphalt binder. This study investigated the adherence coverage of palm oil mill sludge (POMS) modified binder with granite aggregate. Base asphalt binder of penetration grade 60/70 was blended with 1%,2%,3%,4% and 5% of POMS to produce the modified asphalt binders, respectively. Consequently, POMS modified binders were mixed with the granite aggregate to produce loose mix samples. In this current study, boiling test procedure was used to reduce the adhesive bonding of the loose mix sample. Then, Image J software was used to evaluate the stripping area of the samples. The results from image analysis revealed that different stripping areas due to different amounts of POMS incorporated in the modified asphalt binder. Up to 4% POMS modified asphalt showed an acceptable resistance toward moisture compared to un-modified asphalt. Image J helped to produce a clear stripping result compared to visual observation. In conclusion, POMS could be used as an asphalt modifier with satisfactory adhesion properties

Adhesion Characterization of Palm Oil Mill Sludge Modified Asphalt Binder

The adhesion of mineral aggregates to asphalt binder is an essential point that attributes to the quality and performance of the asphalt mixture. Moreover, the considerable problem to the asphalt pavement could come from the lack of bonding between the materials. Generally, adhesion of mineral aggregates depends on the source or type of aggregate and asphalt binder. This study investigated the adherence coverage of palm oil mill sludge (POMS) modified binder with granite aggregate. Base asphalt binder of penetration grade 60/70 was blended with 1%,2%,3%,4% and 5% of POMS to produce the modified asphalt binders, respectively. Consequently, POMS modified binders were mixed with the granite aggregate to produce loose mix samples. In this current study, boiling test procedure was used to reduce the adhesive bonding of the loose mix sample. Then, Image J software was used to evaluate the stripping area of the samples. The results from image analysis revealed that different stripping areas due to different amounts of POMS incorporated in the modified asphalt binder. Up to 4% POMS modified asphalt showed an acceptable resistance toward moisture compared to un-modified asphalt. Image J helped to produce a clear stripping result compared to visual observation. In conclusion, POMS could be used as an asphalt modifier with satisfactory adhesion properties

A Population-based Study of Hospital Admission Incidence Rate and Bacterial Aetiology of Acute Lower Respiratory Infections in Children Aged Less Than Five Years in Bangladesh

The research was carried out to study the rate of population-based hospital admissions due to acute lower respiratory infections (ALRIs) and bacterial aetiology of ALRIs in children aged less than five years in Bangladesh. A cohort of children aged less than five years in a rural surveillance population in Matlab, Bangladesh, was studied for two years. Cases were children admitted to the Matlab Hospital of ICDDR,B with a diagnosis of severe ALRIs. Bacterial aetiology was determined by blood culture. Antimicrobial resistance patterns of Haemophilus influenzae type b (Hib) and Streptococcus pneumoniae (Spn) isolates were determined using the disc-diffusion method. In total, 18,983 children aged less than five years contributed to 24,902 child-years of observation (CYO). The incidence of ALRI-related hospital admissions was 50.2 per 1,000 CYO. The incidences of ALRI were 67% higher in males than in females and were higher in children aged less than two years than in older children. About 34% of the cases received antibiotics prior to hospitalization. Of 840 blood samples cultured, 39.4% grew a bacterial isolate; 11.3% were potential respiratory pathogens, and the rest were considered contaminants. The predominant isolates were Staphylococcus aureus (4.5%). Hib (0.4%) and Spn (0.8%) were rarely isolated; however, resistance of both these pathogens to trimethoprim-sulphamethoxazole was common. The rate of ALRI-related hospitalizations was high. The high rate of contamination, coupled with high background antibiotic use, might have contributed to an underestimation of the burden of Hib and Spn. Future studies should use more sensitive methods and more systematically look for resistance patterns of other pathogens in addition to Hib and Spn

Prediction of Mechanical and Tribological characteristics of Industrial Ceramic coatings using a Genetic Programming approach

ABSTRACT The state of the art methods used to manufacture the coating materials in atmospheric plasma spray process and the level of process control employed in today's coating equipment provides an excellent coating over a broad range of application requirements. The various characteristics of coatings depend on coating material, spray parameters, spray equipment and component configurations. Amongst the many characteristics, the controlled porosity, optimized hardness which is the demanding requirements of wear-resistant application, specific coating thickness and resistance to wear plays an important role in deciding the quality of coating material. In the technical paper, wear tests and Rockwell hardness tests were conducted on different types of industrial coatings, namely, Alumina, Alumina- Genetic programming (GP) is an automated method for creating a working computer program from a high-level problem statement of a problem. The prediction of mechanical and tribological characteristics of ceramic oxide coatings, depending on input parameters (Power input, standoff distance, type of coatings, normal pressure, sliding velocity etc.), was performed by means of genetic programming and data on the outputs ( hardness, weight loss, percent porosity, coefficient of friction etc.) of Mechanical and tribological properties already made. This technical paper highlights how we use GP technique in the prediction output parameters. Commercial Genetic Programming (GP) software-Discipulus is used to derive a mathematical modelling of relations for various input and output parameters used in characterisation. Genetic approach has been used for the modelling the properties in coated components is proposed on the basis of a validation, training and applied data set. Various different genetic models for prediction of different Mechanical and tribological properties with greater accuracy (less than 2%) were also proposed by simulated evolution. INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET) ISS

Structural basis for the RING catalyzed synthesis of K63 linked ubiquitin chains

This work was supported by grants from Cancer Research UK (C434/A13067), the Wellcome Trust (098391/Z/12/Z) and Biotechnology and Biological Sciences Research Council (BB/J016004/1).The RING E3 ligase catalysed formation of lysine 63 linked ubiquitin chains by the Ube2V2–Ubc13 E2 complex is required for many important biological processes. Here we report the structure of the RING domain dimer of rat RNF4 in complex with a human Ubc13~Ub conjugate and Ube2V2. The structure has captured Ube2V2 bound to the acceptor (priming) ubiquitin with Lys63 in a position that could lead to attack on the linkage between the donor (second) ubiquitin and Ubc13 that is held in the active “folded back” conformation by the RING domain of RNF4. The interfaces identified in the structure were verified by in vitro ubiquitination assays of site directed mutants. This represents the first view of the synthesis of Lys63 linked ubiquitin chains in which both substrate ubiquitin and ubiquitin-loaded E2 are juxtaposed to allow E3 ligase mediated catalysis.PostprintPeer reviewe

PENINGKATAN PENDAPATAN PETERNAK DESA BINAAN FAPET UNDANA MELALUI DIVERSIVIKASI PEMELIHARAAN TERNAK PUYUH

Abstrak Masyarakat desa binaan Fapet Undana (Desa Oelatsala) mempunyai usaha utama penggemukan sapi. Pemeliharan ternak besar ini dengan pola peternak membutuhkan waktu  paling cepat 8 – 12 bulan untuk mendapatkan uang tunai, oleh karena itu perlu adanya usaha ternak lain atau diversivikasi usaha misalnya ternak puyuh agar dapat menopang kebutuhan keluarga peternak dalam jangka waktu yang lebih pendek. Tujuan pelatihan untuk meningkatkan pemahaman dan ketrampilan masyarakat desa binaan dalam memelihara ternak puyuh dan ayam KUB. Kegiatan ini dilakukan dengan mengikuti tahapan  yang terdiri dari  kegiatan pelatihan yang terdiri dari penyampaian materi dan praktek, penyerahan saprodi, pendampingan, monitoring dan evaluasi. Hasil kegiatan menunjukkan peserta latih mempunyai peluang usaha ternak puyuh  yang menarik dapat dikerjakan karena pakannya bisa diramu dengan penambahan bahan pakan local yang tersedia disekitar mereka,  tidak membutuhkan lahan yang luas dan mereka membutuhkan pengetahuan dan ketrampilan terkait manajemen pemeliharaan puyuh. Seluruh peserta dengan semangat berdiskusi selama penyampaian materi dan mengikuti kegiatan praktek menyusun ransum puyuh, meramu ransum puyuh, dan diikuti dengan kegiatan membuat kendang puyuh skala 25-30 ekor. Hasil monitoring dan evaluasi produksi telur diperoleh pada hari ke 46 sebanyak 38 butir (42%), adanya respon positif dari warga sekitar dengan melakukan perkunjungan dengan keinginan tahuan yang tinggi tentang beternak puyuh ini.     Abstract The village community assisted by Fapet Undana (Oelatsala Village) has the main business of fattening cattle. Raising large livestock according to a farmer pattern takes at least 8 – 12 months to get cash money; therefore it is necessary to have other livestock businesses or business diversification such as quail livestock in order to support the needs of the farmer's family in a shorter period of time. The purpose of the training is to improve the knowledge and skills of the assisted village communities in raising quail and KUB chickens. This activity is carried out by following stages consisting of training activities, giving of material and practice, delivery of livestock production facilities, accompaniment, monitoring and evaluation. The results of this activity showed that the trainees have an interesting quail business opportunity that can be done because the feed can be mixed with the addition of local feed ingredients available around them, it does not require a large area of ​​land and they need knowledge and skills related to quail rearing management. All participants enthusiastically discussed during the delivery of the material and participated in practical activities of formulate quail rations, mix quail rations, and followed by make a quail cage with a capacity of 25-30 tails. The results of monitoring and evaluation of egg production were obtained on day 46 as many as 38 eggs (42%), there was a positive response from local residents by visiting with a high desire to know about rising this quail

Numerical modelling of coastal structure using SPH-based DualSPHysics model

Coastal structures are implemented along the coasts as measures to counter coastal erosion and the detrimental effects caused by sea waves. In order to maximize the efficiency of these structures, sea conditions during extreme events should be taken into consideration as to avoid the occurrence of wave overtopping, erosion and thus leading to structure failure. This study with the objective to identify the force exerted on several coastal structures and overtopping occurrence under a variety of wave conditions will be compared with the numerical results done by Dang et al., (2021). This study, however, focuses on three different structures; the vertical wall, the trapezoidal wall and the stepped wall, and is simulated using DesignSPHysics, a new addition to the open-source code named DualSPHysics. A simulation with no coastal structure is also presented in this study. The cases take damping systems into account, particularly active wave absorption system. Furthermore, overtopping simulations were conducted as to assess the various structures under the chosen wave conditions. Results signifies that, the stepped wall has the least overtopping occurrence in comparison to the other structures. The simulation presented in this study well replicates that of the study done by Dang et al., (2021)