bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identification fruit fly species associated with watermelon plants (Citrullus lanatus (Thunb.) Matsum. & Nakai) in South of Sulawesi, Indonesia
Authors: Sulaeha S , Bahtiar A H , Melina M 
Published: May 2020

Abstract
Fruit fly is an important insect pest of determining low and poor quality of Watermelon (Citrullus lanatus) in South of Sulawesi. The purpose of this study was to identify species of fruit flies and other arthropods using attracted Methyl Eugenol and Cue Lure traps. This research was done from September to December 2018 in Bentang Village, Takalar, South of Sulawesi. The fruit fly were collected through the use of 1.5 ml of Methyl Eugenol and Cue Lure attractants every traps with 16 traps each treatment. The application of attractant compounds in ME traps is replaced every 6 days, whereas in the CL trap a compound is replaced every 12 days during observation. The results of this research was found species fruit flies and other arthropods in ME attractants, there are B. dorsalis (Hendel), Bactrocera musae., B. umbrosa (Fabricius), and Chrysoperla carnea (Stephens). The Cue lure attractants trap was found B. Bryoniae (Tryon), B.albistrigata (de Meijere), Zeugodacus cucurbitae (Coquillet), Dacus longicornis (Weidemann), Atherigona soccata (Rodani), and Syrphidae. It is especially the species of B. bryoniae (Tryon), which is the first report of its existence in South of Sulawesi.
Response of cocoa pod borer to chlorogenic acid
Authors: Firmansyah A P , Sjam S , Alam G , Dewi V S 
Published: May 2020

Abstract
Chlorogenic acid was first isolated from coffee beans, and this compound is found in many plants including cocoa fruit. Besides functioning as an antibacterial and antioxidant, this compounds act as insect repellents and attractants. According the literature, chlorogenic acid is a stimulant for laying eggs. Because this compound is also found in cocoa and has a function in attracting insects, an experiment was conducted to see the response of the main cocoa pests, cocoa fruit borer (CPB). Pure dissolved chlorogenic acid was divided into several concentrations and then tested with CPB adults male and female. The results of this test show that at concentrations of 5% of chlorogenic acid compounds attract more CPB, and the average of the CPB adults whose choose is female. The most of CPB visit time was 3 hours after the experiment was carried out then stop visit after 18 hours.
Distribution and ecology of sangilu (Evodia sp) as a local endemic species in the Bantimurung Bulusaraung National Park
Authors: Suryanto H 
Published: May 2020

Abstract
Bantimurung Bulusaraung National Park is a conservation area in unique endemic fauna in the form of a butterfly. One form of efforts to maintain the sustainability of the forest ecosystem is fostering habitat by planting butterfly feed plants. Sangilu (Evodia sp) is one of the endemic species of plants as well as a butterfly plant (Host Plant) in the Bantimurung Bulusaraung National Park. However, its population in nature is decreasing. This research activity aims to obtain information on the ecology and distribution of evodia for the conservation of endemic plant species as butterfly feed plants in Bantimurung Bulusaraung National Park. The study was conducted in 2 stages of observation, namely distribution and ecology with exploration of roaming methods. Observations indicate that the distribution of sangilu in the Bantimurung Bulusaraung area was found in 14 points, namely the Samaenre and Bentenge areas of Mallawa, Laiya, Pattirodeceng and Buccu-buccue resorts in Camba. Sangilu in ecological character is found in river banks, watercourses, water sources and mostly grows on slopes.
Percentage depth dose measurement in high energy photons and electrons by using the Al2O3 optically stimulated luminescent (OSL) dosimeter
Authors: Mohd Yusof Mohd Fahmi , Md Othman Nur Natasha , Abdullah Reduan , Abdul Kadir Ahmad Bazlie , Salleh Husaini 
Published: May 2020

Abstract
The study focused on the measurement of percentage depth dose (PDD) in high energy photons and electrons by using the optically stimulated luminescent (OSL) dosimeters. The beam output calibration was performed on 6 MV photons and 6 MeV electrons and compared to that in the ionization chamber. The PDD was measured in 6 MV photons and 6 MeV electrons and the PDD curves were plotted by using the OSL dosimeters. The PDD curves were compared to that in other common dosimeters including ionization chamber, Gafchromic® EBT2 film dosimeter and the treatment planning software (TPS). The results showed that the beam output calibration measured by using the OSL dosimeters was in good agreement to the ionization chamber within 1.6 and 5.9% percentage of discrepancy for both 6 MV photons and 6 MeV electrons respectively. The measured PDD by using the OSL dosimeters were also in in good agreement to the ionization chamber, EBT2 film and TPS software within percentage 13.4 and 10.4% of discrepancies for 6 MV photons and 6 MeV electrons respectively. The overall results indicated the suitability of OSL dosimeters to be used for direct dosimetry measurements in high energy photons and electrons.
The influence of clay addition in fly ash concrete mixture for nuclear shielding
Authors: Ramli Rogemah , Idris Faridah Mohamad , Saad Juniza Md , Yapandi M F K M , Akmal Biyamin S. 
Published: May 2020

Abstract
The disposal of ashes from power plants has caused health issues and reduce the air quality of the surrounding areas. The ashes have a potential to be used in construction of concrete mixture as partial replacement for cement. This research studies the potential fly ash and clay mixture (FAC) as a nuclear shielding material in concrete mixture. The raw materials and the testing were all done in Agensi Nuklear Malaysia. All concrete mixtures had a constant water/cement ratio of 0.266. The hardened concrete mixtures were tested for compressive strength. Scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and small angle neutron microscopy (SANS) are used to characterize the properties of the mixtures. The results suggested that mixture of FAC concrete with 10% of clay addition showing good potential for nuclear shielding compared to other ratios.
ESCORT: Energy sweep compact rapid cycling hadron therapy
Authors: Wah Leo Kwee , Takayama Ken , Adachi Toshikazu , Kawakubo Tadamichi , Dixit Tanuja 
Published: May 2020

Abstract
The Energy Sweep Compact Rapid Cycling Hadron driver for future cancer therapies based on the induction synchrotron concept is described. This fast cycling synchrotron that allows the energy sweep beam scanning. Assuming a 1.5 T bending magnet, the ring can deliver heavy ions of 430 MeV/u at 10 Hz. A beam fraction is dropped from the barrier bucket at the desired timing and the increasing negative momentum deviation of this beam fraction becomes enough large for the fraction to fall in the electrostatic septum extraction gap, which is placed at the large D(s) region. The programmed energy sweeping extraction makes spot scanning beam irradiation on a cancer area in depth possible.
Radiological and heavy metals analysis in soil and water at the former tin mining site in the urban area (Danau Kota Lake, Kuala Lumpur)
Authors: Abdul Hamid N H , Mohd Hidzir N , Mohd Radzali N A , Mokhtar A K 
Published: May 2020

Abstract
Former mining sites are known to be concentrated with enriched naturally occurring radioactive materials (NORM) and heavy metals, as a result of past mining activities. A number of the sites are reclaimed as an open area, which in turn raised concerns regarding public safety. Thus, it is crucial to evaluate the safety of the public engaging in activities around the former tin mining areas. A study is carried out to determine the concentrations of NORM and heavy metals in soil and water collected from Danau Kota Lake, Kuala Lumpur, known as a former mining site. Both NORM and heavy metals were analysed using gamma spectrometry and inductively coupled plasma mass spectrometry (ICP-MS), respectively. The average concentration of 226Ra and 232Th in water collected was 0.7 ± 0.2 Bq/L and 0.1 ± 0.03 Bq/L, respectively. 40K, however, was not detected in the water. The average activity concentration of 226Ra, 232Th, and 40K in soil was 60.8 ± 2.3 Bq/kg, 42.9 ± 1.4 Bq/kg, and 338.4 ± 11.7 Bq/kg, respectively. From the values obtained, it is observed that the activity concentrations for both soil and water are still within the range limit reported by WHO and UNSCEAR. In regards to heavy metals analysis, manganese concentration was the highest in both water and soil with a value of 1.18 µg/L and 147.7 mg/kg, respectively. To evaluate the radiological hazard, the radium equivalent activity index (Req), gamma index (Iγ), absorbed dose rate (D), effective dose rate (Deff) and external hazard index (Hex) are calculated and valued at 148 Bq/kg, 1.1 Bq/kg, 69 nGy/h, 0.1 mSv/year and 0.4, respectively. All radiological hazard indices are found to be below the safety limits. Therefore, the lake area is considered safe for public activities except for Iγ.
Solvent extraction of Thorium from Malaysian xenotime using Tributyl Phosphate (TBP)
Authors: Azhar Norhazirah , Takip Khaironie Mohamed , Hazan Roshasnorlyza , Paulus Wilfred Selyvester , Sapiee Nur Aqilah , Kones Jacqueline 
Published: May 2020

Abstract
Growing interest in environmental concern and vast industrial application makes Thorium popular and widely studies nowadays. In this study, solvent extraction process was done to determine the optimized parameters for the extraction of thorium. Parameters studied are the concentrations (M) of nitric acid (HNO3), percent (%) of Tri-Butyl Phosphate (TBP) in diluent and the volume ratio of acid to organic phase (VA:VO). The mixed rare earth (RE) oxalate powder was dissolved in HNO3 and Thorium elements was extracted using TBP diluted in kerosene. Energy dispersive x-ray fluorescence (ED-XRF) instrument was used to analyze the initial and final concentration of Thorium left in the aqueous solution. From the ED-XRF quantitative values, calculations were made to determine the extraction efficiency of Thorium. In the end of experiment, it is found that the optimized parameters are at 7M HNO3, 20% TBP diluted in kerosene and at VA:VO ratio of 2:3.
Evaluation of glass waste formed containing NORM
Authors: Izzati Ruzali Nur Syuhada , Fadzil Syazwani Mohd , Baan Rohyiza 
Published: May 2020

Abstract
In oil and gas production, crude oil is an important ingredient in the manufacture industry. The sludge from the oil is semi-solid waste and classified as a low-level waste that consists of a mixture of oil, sediment and, water containing radioactive element (Naturally Occurring Radioactive Materials (NORM); and high hydrocarbon concentration. It is categorized and considered as hazardous waste that required careful handling and treatment before disposal. Vitrification process was carried out in this study to immobilize the sludge containing radioactive waste. The objectives in this study is to optimize waste loading and to evaluate the glass waste formed after vitrification process. It is found that 20 wt% of oil sludge at 1200°C is the best optimize waste loading in the experiment because the glass waste formed are completely homogeneous phase.
Water quality monitoring of Reactor TRIGA PUSPATI
Authors: Hasniyati M. R. , Na’im H. S. , Oon J. T. , Zin M. H. M. , Zaredah H. , Tonny L. 
Published: May 2020

Abstract
At present, Reactor TRIGA PUSPATI (RTP) is the only nuclear research reactor in operation in Malaysia since 1982. Each year, the reactor is operated on average for about 600 hours mainly for the advanced neutron and gamma radiation studies as well as for isotope production, sample activation and student training. About one-third of the RTP’s core volume is occupied by water. The water-cooling and purification systems maintain low water conductivity, remove impurities, maintained the optical clarity of the water and dissipating the reactor heat. They consist of a water surface skimmer, pump, filter, demineralizer, heat exchanger unit, associated piping and valves as well as other miscellaneous instrumentations. Thus, the aim of this study is to investigate water quality and maintains the water chemistry to the required specifications at all times in order to ensure longevity and performance of the reactor system.
Performance of imaging system at Reactor TRIGA Mark II PUSPATI
Authors: Yazid Khairiah , Abdullah Mohd Zaid , Mohamed Zin Muhammad Rawi , Jamro Rafhayudi , Murshidi Julie Andrianny , Idris Faridah Mohamad 
Published: May 2020

Abstract
The neutron radiography facility in TRIGA MARK II PUSPATI reactor (RTP) was successfully upgraded to obtain higher image quality as well as reducing exposure time. The major improvement is the implementation of a new neutron detector for neutron imaging. In this work, the implementation of a new neutron imaging system based on CCD camera and LiF/ZnS scintillator is presented. This article focuses on the qualitative and quantitative results obtained by using the new imaging system. The characteristics of this new imaging system were investigated in terms of spatial resolution.
Development of industrial single photon emission computed tomography (ISPECT)
Authors: Ithnin Hanafi , Mohamad Elmy Johana , Yusoff Nazrul Hizam , Hassan Hearie , Lip Norliana Mohd 
Published: May 2020

Abstract
Industrial single photon emission tomography system utilized the gamma-ray emission of radioactive tracer to images the cross-section of tracer distribution for industrial process monitoring and diagnosis. In this paper, 36 units of Sodium Iodide, NaI scintillation detectors were used to study flow in a pipelines. The detectors were arranged in two geometrical arrangement, a hexagon and nonagon configuration. The detectors are connected to three 12-channel gamma counter which is controlled by data acquisition and image reconstruction software developed for the system. The images from these two set-ups were also compared with single detector time-average system. Depending on the size of the pipeline used, i.e. for 36 detectors, the nonagon arrangement gives more information on the distribution of the tracer. Thus nonagon set-up is more suitable to be used for representing or demonstrating the image of the tracer distribution in the pipeline.
Development of data acquisition and control software for gamma-ray process tomography system
Authors: Yussup N , Rahman N A A , Ibrahim M M , Soh@Shaari S C , Saad N , Hassan H , Abdullah J 
Published: May 2020

Abstract
Data acquisition (DAQ) and control software has been developed for gamma-ray process tomography system in Malaysian Nuclear Agency. The gamma-ray computed tomography (CT) system uses Computer Automated Measurement and Control (CAMAC) standard for nuclear counting and data acquisition instead of the common Nuclear Instrumentation Module (NIM) standard. For scanning configuration, the system consists of an array of NaI(Tl) scintillation detectors that moves in a small degree of angle by using a stepper motor. The gamma-ray CT software comprises of graphical user interface (GUI) for the system automation that includes CAMAC modules setup, motor and scanning control, data acquisition from CAMAC crate controller via ethernet interface and data recording. The software is developed by using National Instruments LabView development package.
Preliminary study to determine the maximum settling velocity and model parameter of Cu nanoparticle by settling method
Authors: Azman Azraf , Yusoff Mohd Zamri , Hassan Mohd Zaid , Yazid Hafizal , Gunnasegaran Prem , Ng KC 
Published: May 2020

Abstract
Nanoparticle suspensions also known as nanofluids are often polydisperse and tend to settle with time. Its settling process is very challenging and quite complexs to understand. In this study, Copper (Cu)nanoparticles were dispersed in base fluid (water) and the settling behaviour were examined to obtain the settlement parameter. A series of experiments adopted from sludge settling methods were conducted and the results were analysed. Based on the experiments, the settling curve was successfully established.
Ion irradiation-induced the radiation hardening in Fe and Fe-0.3Si alloys
Authors: Tom Phongsakorn Prak , Murakami Kenta , Nhut Luu Vu 
Published: May 2020

Abstract
Depth profile of Helium irradiation effects in reactor pressure vessel (RPV) model material is identified using a nano-indentation technique in order to develop a new methodology to clarify the solute-vacancy interaction. 2 MeV He ion was irradiated in pure iron at room temperature with and without an energy degrator. The indentation hardness was measured by nanoindentation changing the load at 9 levels. Hardening in irradiated materials was clearly observed in all indentation loads as well as the well-known indentation size effect. It was interesting that the significant increase of hardness was recognized at 0.8 μm depth, which is corresponding to the obstacle of deformation at 3˜4 μm depth, that would be the cause of helium implantation. Furthermore, dose effects on 3MeV Si irradiated RPV model materials were confirmed.
Automatic winder shielding materials focused on shape of the shielding using Monte Carlo N-particle
Authors: Ikhsan Mohamed Mohd Noorul , Nashrumillah Idris Nuri ‘Adilah , Abdul Majid Nur Solehah 
Published: May 2020

Abstract
Automatic winder is a device that can be controlled using a remote controller which can be operated from a distance. It is equipped with electronic component like battery, raspberry pi and mechanical component such as gear, motor, and drive cable. This device will be used to perform radiographic testing which highly exposed to the gamma radiation. Front surface of the automatic winder is an area that receive high dose rate, thus proper shielding needs to be considered to protect component inside the automatic winder. In this study, two type of shapes were selected to be installed at the front surface of the winder housing. By using Monte Carlo N-Particle, increase the thickness of depleted Uranium from 1 mm, 3 mm, 5 mm, 7mm, 9 mm and 11 mm will reduce the dose rate received to the automatic winder. When comparing the shape, it shows that hemisphere shape gives better shielding compared with rectangular shielding.
Effects of natural rubber latex fraction to glycidyl methacrylate on grafting polymerization and its application as Th4+ and UO2
2+ ions bio adsorbent
Authors: Jaffary Nurrul Assyikeen Md. , Mohamed Nor Hasimah , Siong Khoo Kok , Ibrahim Sofian bin , Syuhada Bt Hamdan Siti Nor , Binti Ungku Azly Ungku Aida Farzana , Fadzil Syazwani Mohd 
Published: May 2020

Abstract
Natural rubber (NR) latex was modified by in situ gamma radiation-induced grafting copolymerization of glycidyl methacrylate (GMA). NR latex to GMA emulsion ratio of 100:0, 50:50, 40:60, 30:70 and 20:80 have been investigated at the absorbed dose of 150kGy. The grafted GMA natural rubber-based follow the subsequent chemical modification to anchor phosphate group by open up the epoxy ring. The modified NR was characterized by Fourier transform infrared. Demonstration of modified NR on Th4+ and UO2
2+ ions adsorption in 25ml of 10ppm standard solution gave 95% and 28% percentage removal respectively.
Effect of low dose gamma irradiation on the tensile and thermal properties of natural rubber-based blend
Authors: Lazim N H , Shamsudin S A 
Published: May 2020

Abstract
Natural rubber (NR) is a renewable natural resource that has been utilized in many applications. Due to its low tensile strength, NR is commonly blended with another polymer to improve the properties of NR. However, most of the blended NR has miscibility issue, leading to poor mechanical properties. Gamma irradiation (GR) is a safe and green alternative than conventional chemical method for inducing crosslinking in blended NR. This study was aimed at investigating the mechanical and thermal properties of NR/liquid natural rubber/polystyrene-block-polyisoprene block copolymer (NR/LNR/PS-b-PI) blend using GR method. The polymer blend is prepared according to the ratio of NR:LNR:PS-b-PI of 6:1:3 using an internal mixer. The NR/LNR/PS-b-PI blends are irradiated with gamma ray at doses of 0, 5, 6, 7, 8 and 9 kGy. Tensile and thermal tests are conducted to evaluate the properties of unirradiated and irradiated polymer blend. The tensile strength and modulus of the irradiated blend are increased with increasing irradiation dose before decrease at 9 kGy. Lower melting point of blend indicates that PS-b-PI are compatible in NR/LNR blend. The improvement in tensile properties of irradiated NR/LNR/PS-b-PI blend is related to the radiation-induced crosslinking.
Determination of WUBHS speed range for electron beam irradiation of wire and cable
Authors: Hairaldin Siti Zulaiha , Baharin Ruzalina , Mansur Shahrina Akma , Jusoh @ Yusoff Mohd Suhaimi , Mohd Zainal Mohamad Zulhailmee , Ali Azmi 
Published: May 2020

Abstract
The electron beam machine was installed in 1991 at Nuclear Malaysia Agency. There are about one million meters of wire and cable irradiated in the facility every year. Electron beam irradiation introduces to crosslink the polymer material for high-performance wire and cable for the automobile industry. ALURTRON is facing few challenges while of irradiating wire and cable to determine the speed and to comply with the product quality (QC) test. The uncertainty of Wire Under Beam Handling System (WUBHS) speeds while irradiating wire and cable due to different situations. In this study, Polyethylene (PE) and Polyvinylchloride (PVC) wire and cable irradiated with electron beam irradiation at suitable speed based on the material, size and calculation etc. The sample analyse with hot set and gel content test. The speed decided at range 220-232, 180-196 and 180-194 m/min for 6.4 mm tube, 9.5 mm tube and PVC wire respectively.
Preliminary study of prompt gamma neutron activation analysis for Melamine
Authors: Izwan Ishak Muhamad Noor , Sipaun Susan Maria , Dahing Normanshah , Hassan Haerie , Abdullah Nurliyana 
Published: May 2020

Abstract
Prompt gamma neutron activation (PGNA) technique can be applied for detecting explosives in hidden places by using spontaneous fission source 252Cf source or neutron generator that emits thermal and cold neutrons. Some of emitted neutrons will be captured by nuclei and results in production of prompt gamma rays. Explosive materials can be identified by observing prompt gamma energy spectrum using high purity germanium (HPGe) detector. Gamma energy peaks indicate the presence of corresponding explosive nuclei in scanned materials. This paper describes the experiments conducted to investigate the possibility of explosive detection by using PGNA with 241Am/Be neutron source and limitations that come with it.