bluuebunny/crossref_metadata_2025_split huggingface dataset:
Signal-amplified stretchable PVDF kirigami sensor via neutral axis modification
Authors: Hwang Bosun , Jo Hyeongjin , Song Yujun , Song Ji-Hyeon 
Published: June 2023

Abstract
Stretchable sensors with smart materials now open up diversity opportunities by suggesting ways to overcome the limitations of conventional rigid sensors. The performance of piezoelectric devices is highly dependent on piezoelectric constants. Hence, materials with low piezoelectric constants hinder users to obtain signals induced by stimuli. To rectify this problem, there have been numerous efforts to increase piezoelectricity by doping additional materials or through chemical synthesis methods. These two methods have common limitations: low cost-effectiveness and inferior accessibility by scientists from diversity of fields. In this study, we suggest methods to amplify the response of a polyvinylidene fluoride (PVDF) kirigami sensor with a structural approach: neutral axis modification with a backing layer. We introduce two sensor models with a backing layer: single side and both sides backing layer models. In the former model, the backing layer is attached to the outward area of the concave bending section for stress increment; thereby the response of the sensor can be ameliorated. For the latter model, backing layers are attached on both sides; this synchronizes stress types in the concave and convex bending sections. Consequently, it aligns current movement within the sensor. These two methods are simple and the expected results are intuitive as the voltage amplitude changes proportionally to the backing layer thickness. Also, the modified sensor exhibits stable and identical responses during and after 1000 cyclic motions of stretching and releasing with an applied strain of 80%. The maximum voltage amplitude gap between the pristine and modified sensor is marked as 8.36 V, which is a 48% amplified response from the sensor without a backing layer. This method allows users to adjust the voltage response to their demands in a simple way. This modification also has the potential to be applied as a piezoelectric energy harvesting system.
Liouville soliton surfaces obtained using Darboux transformations
Authors: Mancas S C , Acharya K R , Rosu H C 
Published: June 2023

Abstract
In this paper, Liouville soliton surfaces based on some soliton solutions of the Liouville equation are constructed and displayed graphically, including some of those corresponding to Darboux-transformed counterparts. We find that the Liouville soliton surfaces are centroaffine surfaces of Tzitzeica type and their centroaffine invariant can be expressed in terms of the Hamiltonian. The traveling wave solutions to Liouville equation from which these soliton surfaces stem are also obtained through a modified variation of parameters method which is shown to lead to elliptic functions solution method.
The influence and application of nonlinear aerodynamics on static derivatives in transonic regime
Authors: Xie Meng , Liu Xiaoyan 
Published: June 2023

Abstract
This paper details two static aeroelastic analysis methods applied to a passenger aircraft model with high aspect ratio wing. The influence of nonlinear aerodynamic force on static aeroelastic derivatives in the transonic regime is analysed. The traditional aerodynamic influence coefficient (AIC) matrix method can produce fast and reliable aerodynamic force and is widely used in aeroelastic analysis. However, the AIC matrix computed by linear aerodynamics will lead to some errors in transonic regime because of the nonlinear effect of aerodynamics. By generating the correction matrices, the AIC matrix is modified, and the accuracy of transonic static aeroelastic correction of aerodynamic data can be improved. The static derivatives are compared to the results of the computational fluid dynamics (CFD) / computational structural (CSD) interaction method.
Computerized Simulation of Meshing of S-gears and Modification Geometry
Authors: Jia C , Xiao J M 
Published: June 2023

Abstract
S-gear is a new type of gear with the advantages of small sliding coefficient, high meshing efficiency and large load-bearing capacity due to the concave-convex contact in a vicinity of the meshing start and end. In view of the excellent characteristics and potential value of S-gears, this paper deeply studies the designation and meshing characteristics of the S-gears. First, based on the relationship of S-shaped rack-cutter and machining motion, the tooth surface of the S-gears is generated. Second, by superimposing the surface of modified volume with the standard tooth surface, the modified tooth surface of S-gears is constructed. On this basis, using MATLAB programming, the coordinates of 3D grid node of modified S-gears are calculated. Third, loaded tooth contact analysis (LTCA) is used to study the meshing characteristics of the S-gears with longitudinal modifications and misalignment angle errors. Ultimately, one example is presented and the result shows that after tooth surface modification, the load distribution of S-gears is effectively improved and error sensitivity is greatly reduced. S-gear is a new type of gear which is different from involute gears and has great potential application prospect in large load-bearing field, which will be further studied in the future.
Early CO2 capturing mortar by incorporating a new potential carbide lime waste under controlled CO2 curing
Authors: Adrina Rosseira A T , Nur Hafizah A K , Fadzil M A , Bazli Faliq M M P , Khairul Irfan N N A L , Rohaya O 
Published: June 2023

Abstract
Early-age cement paste or mortar can be enhanced by curing it in a CO2 chamber. The study was initiated with investigation on the optimum compressive strength by replacing cement to carbide lime with 0, 5, 10, 15 and 20% of Carbide Lime Waste (CLW) content. The desired CLW mortar at 28 normal curing age was selected and the similar mix proportion was again casted and the fresh CLW mortar was cured for 1,3 and 7 days under controlled CO2 curing. The CO2 concentration and temperature were fixed at 20% and 60% respectively. The compressive strength and depth of carbonation of CLW mortar was investigated. In addition, their microstructural properties under TGA test was analysed at the early curing ages by using cement pastes. It was found that the mortar containing 5% of CLW had the desired optimum compressive strength and UPV under water curing condition. Overall, the strength properties of control mortar and CLW mortar significantly enhanced at early strength gained by controlled CO2 curing as compared to the water curing technique. The used of 5% of CLW as the potential to substitute the cement portion has provide better understanding on CO2 sequestration in cement mortar. The microstructural result shows the CaCO3 precipitation in the CLW mortar was higher than the control mortar as CLW has Ca(OH)2 behaviour which effectively react with CO2 and formed stable CaCO3 precipitation in the mortar.
Optimisation of mix design of concrete paving block using response surface methodology
Authors: Yeo J S , Koting S , Onn C C , Mo K H 
Published: June 2023

Abstract
This study investigated the optimal water/binder (w/b) and aggregate/binder (a/b) ratios in producing a concrete paving block. The w/b and a/b ratios in the concrete paving block were optimised using the response surface methodology (RSM), considering the performances of the ultrasonic pulse velocity (UPV), flexural, and compressive strengths. Regression modelling was conducted to represent the relationships between the UPV and compressive strength and the compressive and flexural strengths. Generally, the UPV, flexural, and compressive strengths increased with the increment of w/b ratio and reduction of a/b ratio. The RSM suggested optimal ratios of 0.35 for w/b and 3.50 for a/b, that the paving block could exhibit UPV, flexural, and compressive strengths of 4.11 km/s, 4.13 MPa, and 33.2 MPa, respectively. The predicted values from the RSM varied less than 6% compared to the experimental values. The polynomial regression model could effectively represent the relationship between the UPV and the compressive strength and the relationship between the compressive and flexural strengths of the concrete paving block.
Properties of local ultra-high-performance concrete with low dosage of polyvinyl alcohol and steel fibre
Authors: Yeo S H , Mo K H , Mahmud H B 
Published: June 2023

Abstract
Ultra-high-performance concrete (UHPC) delivers better durability and mechanical properties than normal-strength concrete. However, conventional UHPC requires heat treatment and a high dosage of high tensile steel fibre to achieve a compressive strength of 120 MPa. The present study was conducted to test a local UHPC with low fibre dosage and without heat treatment by incorporating different polyvinyl alcohol (PVA) fibre and steel fibre. The fibres included in the experimental works were 30 mm PVA macro fibre, 8 mm PVA fibrin and hooked end steel fibre with 35 mm in length. Four series of UHPC were studied, which consist of plain UHPC mix and three fibre-reinforced UHPC mixes. 1% fibre volume was incorporated into all the fibre-reinforced mixes. The mixes were tested for compressive strength, modulus of rupture, drying shrinkage and porosity The UHPC had a compressive strength of more than 120 MPa and modulus of rupture from 8 to 11 MPa. The drying shrinkage of all the UHPCs was less than 255με when cured at 100% relative humidity. The porosity recorded for the UHPC was 2%. Current findings indicated that steel fibre reinforced UHPC performed better than UHPC with PVA fibre in terms of mechanical properties However, UHPC with PVA fibrin performed better in terms of the drying shrinkage. In conclusion, UHPC with more than 120 MPa can be achieved with normal synthetic and steel fibre without special treatment.
Tolerance of the MIMOSIS-1 CMOS Monolithic Active Pixel Sensor to ionizing radiation
Authors: Darwish H. , Andary J. , Arnoldi-Meadows B. , Artz O. , Baudot J. , Bertolone G. , Besson A. , Bialas N. , Bugiel R. , Claus G. , Colledani C. , Deveaux M. , Dorokhov A. , Dozière G. , El Bitar Z. , Fröhlich I. , Goffe M. , Hebermehl F. , Himmi A. , Hu-Guo C. , Jaaskelainen K. , Keller O. , Koziel M. , Matejcek F. , Michel J. , Morel F. , Müntz C. , Pham H. , Schmidt C.J. , Schreiber S. , Specht M. , Spicker D. , Stroth J. , Valin I. , Weirich R. , Zhao Y. , Winter M. 
Published: June 2023

Abstract
MIMOSIS is a CMOS Monolithic Active Pixel Sensor (CPS) developed to equip the Micro Vertex Detector (MVD) of the Compressed Baryonic Matter (CBM) experiment at FAIR/GSI. The sensor will combine a spatial resolution of -5 µm with a time resolution of 5 µs and provide a peak hit rate capability of ∼80 MHz/cm2. To fulfil its task, MIMOSIS will have to withstand ionising radiation doses of ∼5 MRad and fluences of ∼7 × 1013 neq/cm2 per year of operation.
The paper summarises major requirements of the CBM-MVD and compares them to the detection performances of the first full scale prototype, called MIMOSIS-1, recently evaluated in the laboratory and with particle beams. The tolerance of the sensor to the expected ionising radiation load was evaluated; the paper describes the measurements performed and their outcome.
Clinical Examination of Foot and Mouth Disease of Dairy Cows in Sukamurni, Cilawu, Garut, West Java, Indonesia
Authors: Ismail I , Indarjulianto S , Yusuf S , Purba F Y 
Published: June 2023

Abstract
Foot and Mouth Disease (FMD) is a highly contagious viral disease that affects cattle, sheep, goats, buffalo, pigs, and other animals with cloven hooves. It is a transboundary animal disease that seriously affects livestock productivity and disrupts trade in live animals and animal products worldwide. Indonesia was declared free of FMD in 1986, then vaccination and FMD vaccine production were banned. In April 2022, FMD was detected in cattle in some provinces in Indonesia, including West Java. This study investigated the clinical signs of FMD-positive dairy cows from 20 to 30 May 2022, in Sukamurni village. A total of 284 dairy cows were confirmed FMD by the laboratory and investigated for their clinical signs by direct examination and questionnaire. The result revealed lactating cows account for 42.6% of total positive cases, followed by pregnant cows (24.3%) and calves (11.27%). The main clinical signs were lameness (including lesions on foot) and excessive salivation (77.27%). Milk production was decreased on day 3 and returned to normal on day 10 after infection. Most cows reported clinical signs up to 3-4 weeks. In conclusion, these results suggest that lameness and excessive salivation are the most common clinical signs of FMD in dairy cows.
Random Amplified Polymorphic DNA-Polymerase Chain Reaction Analysis of Four Koi Fish (Cyprinus carpio var. koi) Variants from Yogyakarta, Indonesia
Authors: Andrian K N , ‘Aisy N R , Novindasari B B M , Nurrahmi I A , Santi M D , Haryanto A 
Published: June 2023

Abstract
Koi fish (Cyprinus carpio var. koi) is an ornamental fish with many hobbyists because of the beauty of its color pattern. Koi fish are widely cultivated around the world. Indonesia is a country that has many koi fish breeders and hobbyists. Crossbreeding between variants of koi fish can form a new variants. and provide a lot of genetic variation. This study aims to determine the variations and genetic relationships of koi fish that are widely cultivated in Indonesia. This study used 40 koi fish originating from fish farmers in the Special Region of Yogyakarta. Koi fish variants used are Kohaku, Showa, Sanke, and Shiro. This research uses amplification method with Polymerase Chain Reaction (PCR) with Random Amplified Polymorphic DNA (RAPD) marker which is OPA-1 and OPA-9. The results of the RAPD-PCR showed 14 bands from the OPA-1 primer and 5 bands from the OPA-9 primer with a total of 19 bands consisting of 18 polymorphic bands and 1 monomorphic band from the four samples of koi fish variants. The results of the polymorphism analysis showed that the polymorphisms of the Shiro variants is 63.16%, Showa 47.37%, Kohaku 36.84%, and Sanke 31.58%. Genetic distance calculation using the Nei genetic distance shows that the Kohaku variant has a close genetic distance to the Showa variant and the Sanke variant has a close genetic distance to the Shiro variant.
The Effect of Palm Oil Mill Effluent Supplementation on Post-Weaning Goat Performance
Authors: Nugroho Ndoni , Alamsyah Rifqi , Wardani Amelia Syahidna , Maulana Hamdani , Wiratni  , Marbelia Lisendra , Tanto Daniel , Baliarti Endang 
Published: June 2023

Abstract
Palm oil mill effluent (POME), which is the one of by-product of Crude Palm Oil (CPO) processing, contains high nutrients and has the potential as an animal feed ingredient. This study aims to determine how supplementation of POME in the ration affects feed consumption, average daily gain (ADG), and feed conversion ratio (FCR) in post-weaning goats. Thirteen Bligon goats were divided into two groups, the control group was given forage and concentrate feed, and the treatment group was supplemented with 10% POME. The study was conducted for one month. The data studied were feed consumption, ADG, and FCR. Data analysis using T-Test. The results showed that the dry matter consumption of the treatment group compared to the control group was 0,53 ± 0,02 vs 0,39 ± 0,02 kg/head/day 63,07 ± 3,72 vs 55,34 ± 3,31 g/ kg0,75, crude protein consumption was 0,07 ± 0,04 vs 0,05 ± 0,04 kg/head/day 7,85 ± 0,46 vs 6,52 ± 0,36 g/ kg0,75, total digestible nutrients consumption was 0,30 ± 0,01 vs 0,22 ± 0,01 kg/head/day 35,47 ± 2,09 vs 31,05 ± 1,77 g/ kg0,75 (P<0.05), ADG was 67,85 ± 19,42 vs 55,61 ± 10,68 g/head/day (P<0,05) and FCR was 8,54 ± 2,85 vs 7,44 ± 2,03 (P>0,05). In conclusion, the supplementation of POME significantly improves the performance of weaning Bligon goats so that they can be used as supplementation feed to reduce production costs.
Resistance finding of Bacillus anthracis towards penicillin in East Java, Central Java, and Yogyakarta Provinces, Indonesia
Authors: Apriliana U I , Ruhiat E , Mariyono  , Wibawa H , Untari T , Indarjulianto S 
Published: June 2023

Abstract
Anthrax is a worldwide distributing zoonotic disease, caused by Bacillus anthracis, which occurs sporadically in Indonesia, particularly in the provinces of East Java, Central Java, and Yogyakarta, which are the working areas of the Disease Investigation Center (DIC) Wates. Penicillin has been the primary antimicrobial treatment recommended for anthrax since there has never been a report of resistance to this antibiotic in Indonesia. The objective of this research was to assess the sensitivity of B. anthracis isolates from Central Java, East Java, and Yogyakarta to penicillin and tetracycline. Sixteen B. anthracis isolates from DIC Wates collected between 1990-2021 recovered from environmental samples were used in this study. All isolates were identified by phenotype, then tested for sensitivity to penicillin and tetracycline by agar diffusion (Kirby-Bauer) and broth dilution method. The data obtained were compared with the standard and analyzed descriptively. The results showed that all isolates were B. anthracis. One of 16 isolates (6,25%) consistently showed resistance to penicillin, but was sensitive to tetracycline, while 15 isolates (93,75%) showed sensitive to both antibiotics. A penicillin-resistant isolate was soil sample from anthrax endemic area. In conclusion, there was B. anthracis isolate that was found resistance to penicillin. Therefore, tetracycline can be used as an alternative for anthrax treatment.
Anthelmintic Resistance Status in Gastrointestinal Nematodes of Seven Different Breeds of Sheep in intensive management
Authors: Martindah E , Sawitri D H , Wardhana A H , Ekawasti F , Dewi D A 
Published: June 2023

Abstract
The severe use of anthelmintics to control gastrointestinal nematodes has become an essential issue in many countries, especially related to resistance issues. A study was carried out to determine the anthelmintic resistance status of intestinal nematodes of sheep, which were kept intensively in Bogor District, Indonesia. A total of 220 sheep of 7 breeds that routinely received Benzimidazole anthelmintics group to control gastrointestinal nematode were designated for this study. The animals were divided into 7 groups based on the breed and treated with Albendazole at the required dose. The Fecal Egg Count Reduction Test (FECRT) method was used to evaluate the anthelmintic’s effectiveness. The mean fecal egg count reduction was recorded at seven and fourteen days of treatment. The result indicated that 7 breeds of sheep were resistant to the anthelmintic used. Garut Local and Barbados Cross breeds showed relatively high resistance to Albendazole, with the mean fecal egg count at fourteen days of treatment being 60.24% and 67.97%, respectively. Haemonchus spp. larvae were the nematode larvae of strongyles species that grew the most in each breed of sheep from the fecal samples on day 0 (before treatment), day 7, and day 14 after treatment.
The Quality of KUB Rooster Sperm with Vitamin E and C Supplementation During Room Temperature Storage
Authors: Arif Makruf , Gunawan Ryan Ahmad , Kusumawati Asmarani 
Published: June 2023

Abstract
Antioxidant supplementation to semen extenders can help to maintain rooster sperm quality. This study determined how vitamins E and C affected the quality of KUB sperm at room temperature. Semen collection from 12 KUB roosters used dorso abdominal massage method, twice a week. Semen samples were then diluted using LR-EY extender with three treatments: LR-EY without antioxidant as the control, LR-EY supplemented 0.05 mg/ml vitamin E, and 0.2 mg/ml vitamin C. The diluted semen samples were then stored at room temperature, then motility and viability were examined at 0, 1st, 2nd, and 4th hour. The results showed that the percentage of motility between treatment groups and time points differed not significantly (P>0.05). However, vitamin E supplementation had a significant (P<0,05) effect on the percentage of viability in the 2nd and 4th hour. Supplementation of vitamin E 0.05 mg/ml was able to maintain the viability of KUB rooster sperm at 2nd hour (88.75 ± 1.50%) and 4th hour (84.75 ± 2.63%). It can be concluded that vitamin C cannot maintain sperm quality significantly, but vitamin E can preserve the viability of KUB rooster sperm significantly at room temperature.
Impact of Natural Hazards on the Operation of Powered Roof Support in Polish Hard Coal Mines
Authors: Borska Beata 
Published: June 2023

Abstract
The powered roof support is mainly used in natural hazard conditions. Natural hazards in Polish mining include methane hazards, gas and rock ejections, coal dust explosions, climate hazards, water hazards, landslides, eruptions, hydrogen sulphide hazards, radioactive substances hazards and rock mass tremors. The latter has a significant impact on the operation of powered roof support. The work analyses rock mass tremor risks in the last ten years. The study showed an intense increase in this hazard, which significantly affects the work safety of people operating machines and devices in mining excavations. The paper takes into consideration surveys carried out among employees working in conditions of rock mass shock risk. The purpose of the study was to obtain information on the safe operation of powered roof supports. The data allowed us to draw conclusions regarding the possibility of increasing work safety regarding rock mass shock risk conditions.
Delineation of groundwater potential zones in northern Omdurman area using electrical resistivity method
Authors: Mohammed Musaab A. A. , Szabó Norbert P. , Szűcs Péter 
Published: June 2023

Abstract
This study is conducted in the northern Omdurman area to delineate groundwater potential zones using electrical resistivity method. Omdurman is the most ancient city known as the historical capital of Sudan. Geoelectric survey employing vertical electrical sounding (VES) technique is carried out to explore the availability of groundwater in the study area. The measurements were conducted using Schlumberger configuration. In this study, twelve VES points are measured along four profiles. The measured data is processed and interpreted using 1D geophysical inversion technique constrained by lithological data obtained from two boreholes. The integration of electrical and geological data led to a reliable interpretation of the geophysical model. The obtained results revealed that the geological succession of the study area is mainly composed of five layers of recent deposits, clay, sandy clay, silicified and ferruginous sandstone, and sandstone. According to the resulting hydrogeological sections, the water-bearing formation is composed mainly of coarse sandstone and varies in thickness under confined conditions. The geoelectrical sounding method successfully fulfilled the aims of the study. Nevertheless, detailed hydrogeological and geophysical investigations need to be carried out for a comprehensive characterization of the groundwater aquifer.