bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation on collision-coalescence of droplets under the synergistic effect of charge and sound waves: orthogonal design optimization
Authors: He Fuyou , Li Jiawei , Li Chuan , Wang Pengyu , Wang Zutao , Zhang Ming , Yu Kexun , Pan Yuan 
Published: October 2021

Abstract
As an efficient approach to improve visibility, defogging technology is essential for the operation of ports and airports. This paper proposes a new and hybrid defogging technology, i.e. an electric–acoustic defogging method. Specifically, the droplets are charged by corona discharge, which is beneficial to overcome the hydrodynamic interaction force to improve the droplet collision efficiency. Meanwhile, sound waves (especially acoustic turbulence) promote the relative movement of droplets to increase the collision probability. In this study, the effects of acoustic frequency (f), sound pressure level (SPL), and voltage (V) on the droplet growth ratio were studied by orthogonal design analysis. The results of difference analysis and multi-factor variance analysis show that frequency and SPL are the dominant factors that affect the collision of droplets, and the effect of voltage is relatively weak. And f= 400 Hz, SPL = 132 dB, and V = −7.2 kV are the optimal parameters in our experiment. In addition, we further studied the impact of single factor on droplet growth ratio. The results show that there exists an experimental optimal frequency of 400 Hz. The droplet growth ratio increases with SPL and voltage level. The new technology proposed in this paper can provide a new approach for defogging in open space.
Current status of eye-lens dosimetry in Canada
Authors: Dubeau Jacques , Sun Jiansheng , Djeffal Salah , Leroux Neil , Golovko Victor , Dodkin Christina , Mistry Rajesh 
Published: October 2021

Abstract
For occupational exposures in planned exposure situations International Commission on Radiological Protection (ICRP) publication 118 recommends an equivalent dose limit for the lens of the eye of 20 mSv yr−1 averaged over five years with no single year exceeding 50 mSv. This constitutes a reduction from the previous limit of 150 mSv yr−1. The Canadian nuclear regulator, the Canadian Nuclear Safety Commission, responded to the ICRP recommendation by initiating amendments to the Radiation Protection Regulations through a discussion paper which was published for comment by interested stakeholders in 2013. The revised equivalent dose limit of 50 mSv in a one-year dosimetry period for nuclear energy workers came into effect in January 2021. This paper presents the outcome of discussions with Canadian stakeholders in diverse fields of radiological work which focused on the implementation of the reduced occupational equivalent dose limit for the lens of the eye in their respective workplaces. These exchanges highlighted the existing practices for monitoring doses to the lens of the eye and identified current technological gaps. The exchanges also identified that, in many cases, the lens of the eye dose is anticipated to be well within the new dose limit despite some of the gaps in technology. The paper also presents the monitoring and eye-lens dose assessment solutions that are available based on different methods for eye-lens monitoring; presented together with criteria for their use.
Optical pulse modulators based on layered vanadium diselenide nanosheets
Authors: Li Linrui , Li Xiaohui , Zhao Yang , Feng Jiangjiang , Zhang Chenxi , Shi Yuan , Ge Yanqi , Zhang Yani 
Published: October 2021

Abstract
The transition metal disulfides of VB group elements have gradually come into people’s field of vision owing to their two-dimensional structure and unique optical properties. Vanadium diselenide (VSe2) as a kind of transition metal diselenides, is competent for the applications of nonlinear saturable absorption. The dispersion of few-layer VSe2 is prepared by liquid phase exfoliation method. Clearly, it has an obvious layered structure, and the interlayer spacing is 0.31 nm. The VSe2 nanosheets are inserted into the Erbium-doped fiber laser through tapered deposition method and the measured modulation depth is 1.46%. A 1530.5 nm centered 851-fs pulse is observed with the 3.2 nm 3-dB spectral width. The experimental results show that the pulse is persistent under the power of 334 mW, with signal-to-noise ratio of 41 dB. And an up to 552.4 MHz modulation phenomenon is observed around 1560 nm, so is its frequency tunability. This is the first time that VSe2 is used to realize high frequency modulation in fiber laser. It is proved that VSe2 is expected to be a budding material of ultrafast optical modulation devices and widely used in the field of ultrafast photonics.
Proton irradiation effects on mechanochemically synthesized and flash-evaporated hybrid organic–inorganic lead halide perovskites
Authors: Shin Jiwon , Baek Kyeong-Yoon , Lee Jonghoon , Lee Woocheol , Kim Jaeyoung , Jang Juntae , Park Jaehyoung , Kang Keehoon , Cho Kyungjune , Lee Takhee 
Published: October 2021

Abstract
A hybrid organic–inorganic halide perovskite is a promising material for developing efficient solar cell devices, with potential applications in space science. In this study, we synthesized methylammonium lead iodide (MAPbI3) perovskites via two methods: mechanochemical synthesis and flash evaporation. We irradiated these perovskites with highly energetic 10 MeV proton-beam doses of 1011, 1012, 1013, and 4 × 1013 protons cm−2 and examined the proton irradiation effects on the physical properties of MAPbI3 perovskites. The physical properties of the mechanochemically synthesized MAPbI3 perovskites were not considerably affected after proton irradiation. However, the flash-evaporated MAPbI3 perovskites showed a new peak in x-ray diffraction and an increased fluorescence lifetime in time-resolved photoluminescence under high-dose conditions, indicating considerable changes in their physical properties. This difference in behavior between MAPbI3 perovskites synthesized via the abovementioned two methods may be attributed to differences in radiation hardness associated with the bonding strength of the constituents, particularly Pb–I bonds. Our study will help to understand the radiation effect of proton beams on organometallic halide perovskite materials.
Two-stage ECG signal denoising based on deep convolutional network
Authors: Qiu Lishen , Cai Wenqiang , Zhang Miao , Zhu Wenliang , Wang Lirong 
Published: October 2021

Abstract

Background. An electrocardiogram (ECG) is an effective and non-invasive indicator for the detection and prevention of arrhythmia. ECG signals are susceptible to noise contamination, which can lead to errors in ECG interpretation. Therefore, ECG pretreatment is important for accurate analysis. Methods. The ECG data used are from CPSC2018, and the noise signal is from MIT-BIH Noise Stress Test Database. In the experiment, the signal-to-noise ratio (SNR), the root mean square error (RMSE), and the correlation coefficient P are used to evaluate the performance of the network. The method proposed is divided into two stages. In the first stage, a U
de
-net model is designed for ECG signal denoising to eliminate noise. The DR-net model in the second stage is used to reconstruct the ECG signal and to correct the waveform distortion caused by noise removal in the first stage. In this paper, the U
de
-net and the DR-net are constructed by the convolution method to achieve end-to-end mapping from noisy ECG signals to clean ECG signals. Result. In SNR, RMSE and P indicators, U
de
-net + DR-net proposed in this paper can achieve the best performance compared with the other five schemes (FCN, U-net etc). In the three data sets, SNR can be increased by 11.61 dB, 13.71 dB and 14.40 dB and RMSE can be reduced by 10.46 × 10−2, 21.55 × 10−2 and 15.98 × 10−2. Conclusions. Despite the contradictory results, the proposed two-stages method can achieve both the elimination of noise and the preservation of effective details to a large extent of the signals. The proposed method has good application prospects in clinical practice.
Processing of polymetallic concentrate from waste recycling plants by distillation in vacuum
Authors: Trebukhov S A , Volodin V N , Ulanova O V , Burabaeva N M , Tuleutay F Kh 
Published: October 2021

AbstractThe sequence of operations for the processing of secondary raw materials has been proposed based on the analysis of the physicochemical properties of the main metals: copper, zinc, lead and tin contained in the metal concentrate from waste processing, including the developing complete state diagrams of binary systems of copper with lead and zinc, including the melt-vapor phase transition in vacuum. The proposed technology includes preliminary smelting of the concentrate into roughing brass for composition averaging and subsequent distillative extraction of lead and zinc each into roughing metals at a temperature of more than 1000°C with a decrease in pressure from atmospheric to 30 Pa. Copper-base still bottoms can be processed in copper production. Technological studies have confirmed the fundamental possibility of such technological scheme.
Study of the membrane capacitive sensor Baratron from the composition of the state primary special standard GET 49-2016 to the state primary special standard of the pressure unit for the pressure difference GET 95-2020
Authors: Vitkovskii O S , Chernyshenko A A 
Published: October 2021

Abstract
This article is dedicated to the investigation of the membrane capacitive sensor Baratron on the state primary special standards GET 95-2020 and GET 49-2016. The article describes the stages and some results of the work.
Salt-induced growth promotion in rice varieties during nursery
Authors: Kurniasih B , Arini N , Alvioliana D , Nisa R I , Wulandari R A 
Published: October 2021

Abstract
Climate change will increase the occurrence of salinity in agricultural land along with the coastal areas. One of the technologies to reduce salinity is NaCl pretreatment. This study aimed to evaluate salinity treatment's effect during nurseries on the growth of lowland rice seedlings. There were three separate experiments, and all the experiments used Randomized Complete Block Design. In the first experiment, local black rice seeds (var. Jelitheng) was used. The nursery was carried out at three salinity levels, i.e. 0.2, 3 and 5 dS/m. The second experiment was conducted using salt-resistant rice seeds (var. Dendang) and salt susceptible rice seeds (var. IR 64). The salinity levels applied were non-saline (0.2 dS/m) and saline (5 dS/m). The third experiment used rice seedling var. IR 64, with the first factor being the salinity level (0.2 and 5 dS/m) and the second factor was a wet nursery and dry nursery. In general, the results from the three experiments showed that giving salinity levels of 3-5 dS/m in several rice varieties improved seedling performance. Although salinity during nursery could increase the concentration of Na+ and decrease the concentration of K+ in leaves, salinity during nursery increased the seedlings fresh weight, and dry weight increased the number of seedlings leaves and increased the concentration of leaf chlorophyll. The better seedlings growth variable in the saline nursery will help the plants cope with salinity in the later growth stage in the field.
Application of Drip Irrigation on Various Planting Media and Cow Urine in the Main Media of Preliminary Oil Palm Nursery
Authors: Wahyudin C I , Mahulette A S , Tanasale V L , Marasabessy D A , Goo N , Mariati W D , Asmi Y , Rifqah R A , Michala  
Published: October 2021

Abstract
The objective of this study was to determine the effect of drip irrigation and biological organic fertilizer treatment on oil palm growth. This study used a randomized complete block design with 3 replications. This research consisted of three experiments, namely drip irrigation, planting media composition, and cow urine dose on the growth of oil palm seedlings. There are three levels of drip irrigation, namely 30 minutes, 60 minutes and 90 minutes. Experiments on the type of planting media composition consisted of two types, namely M1 (ultisol soil + husk charcoal + fern fertilizer) and M2 (ultisol soil + empty bunches + goat manure). The cow urine experiment consisted of three levels, namely 100 ml, 150 ml, 300 ml. The results showed that giving water for 30 minutes gave the best results on stem circumference, plant height increase, plant dry weight increase, plant wet weight increase in oil palm seedlings. M1 media (ultisol soil + husk charcoal + fern fertilizer) had a significant effect on the increase in plant height, wet weight and dry weight of oil palm seedlings. Treatment of 150 ml cow urine liquid fertilizer is sufficient for the needs of oil palm seedlings with a response that is not different from 200 ml of cow urine.
Optimization of gamma ray irradiation dose on strawberry plantlets
Authors: Saptadi D , Arisah H , Agisimanto D 
Published: October 2021

AbstractAs a commodity that is cultivated vegetatively, strawberries have a relatively low genetic diversity. One effort to increase the diversity of strawberries and genetic quality improvement can be made by using gamma-ray radiation. In vitro explant of strawberry cv Early Bright were radiated with Gamma-ray P3TIR BATAN facility. Starting with a radiosensitivity test to find out Lethal Dose (LD) 50 with dosage level; 5, 10, 20, 30, 40, 60, 80, 100, 125, 150, 175, and 200 Gy. LD50 observations were carried out to get the optimal dose. The treatment of several doses of gamma-ray radiation showed varied results, with the percentage of explants living decrease by increasing the dose of irradiation. Irradiation dose until 10 Gy did not affect the survival rate of explant—the treatment dose of 80 Gy and above causes 100% mortality on the final observation. The dose of 60 Gy had a significant effect on shoot growth, as indicated by curly leaves' growth. The next optimal dose recommended for radiation is set at 20 and 30 Gy to anticipate genetic changes that are not morphologically expressed and to avoid the negative effects of morphological changes.
The diversity of bird species based on the altitude of the protected forest area in Sirimau Mountain in Soya Village - Ambon City
Authors: Pattinasarany C K , Latupapua L , Sanduan A , Th Latupapua Y , Tetelay F F , Soselisa F 
Published: October 2021

Abstract
This study is aimed to discover the diversity of bird species based on the altitude of the area and to discover the impact of vegetation as habitat towards the diversity of bird species in protected forest area in Sirimau Mountain in Soya Village located in Ambon City. The method used to discover the diversity of birds was the IPA-method (Indices Ponctuels d’Abondance) while observing the vegetation used the CSS-method (Continous Strip Sampling) alongside the observation paths. The protected forest consists of three area of different altitudes, namely 300 meters above sea level (masl), 400 masl and 500 masl. The bird species found in the protected forest area in Sirimau Mountain in Soya Village as a whole were 16 species. The forest area at 300 masl was found 14 bird species with diversity index (H’) of 2.57, the forest area at 400 masl was found 12 bird species with diversity index (H’) of 2.42, while the forest area at 500 masl was found 11 bird species with diversity index (H’) of 2.10. There were 8 bird species found in every area of three different altitudes that were dominant such as Perling Ungu (Aplonis motalica), Walet Sapi (Collocalia esculenta), Perkicit Pelangi (Trichoglossus haematodus), Pergam Laut (Ducula bicolor), Sesap Madu Sriganti (Nectarinia jugularis), Srigunting Lencana (Dicrucus bracteatus), Nuri Pipi Merah (Geoffreyus geoffreyi) and Tekukur Biasa (Streptopelia hinensis). Meanwhile, the dominant types of vegetation found in the area were Damar (Agathis sp.), Kayu Merah (Eugenia jambolana) and Meranti (Shorea sp.)
Indigenous maize seed storage using buffalo dung ash practiced by smallholder farmers in Kisar Island
Authors: Jesajas H , Kembauw E , Matatula M J , Tagueha A D , Liur I J 
Published: October 2021

AbstractKisar island is a small island located on the tip of Timor island. Corn is the main agricultural crop, and livestock husbandry also plays an important role in the livelihood of the farmers as a source of income, provide mainly manure for maintaining soil fertility. and in the local culture as a 'bride price' and for the exchange of goods. Considering periodical seasonal hazards, during eight months dry season people suffer from a serious shortage of water. Failure of the harvest is not an unusual phenomenon on the small, dry, eroded coral island. Seasonal pest invasion on maize cultivation threaten their seed security and food security. The objective of this review is to describe the validity of farmers’ indigenous knowledge (IK) of using buffalo dung as a preservative agent in maize storage and its relevancy in the contemporary living of farmers in the island. A phenomenological study was held in June to August 2018. The results showed that applying buffalo dung ash makes the maize dry faster, cleans and kills maize weevil and preserves the grain, It was concluded that the knowledge and practice is scientifically valid and benefited community in the past but has less relevancy to the contemporary living of the farmers in the island.
Sustainable development strategy for agroforestry
Authors: Ruhimat I S , Widiyanto A 
Published: October 2021

Abstract
This research aims to determine the status of sustainability, key factors that influence, and the strategy of developing sustainable agroforestry farming. The study was conducted from January to December 2016 in the Sodonghilir subdistrict, Tasikmalaya Regency, West Java Province. Data is analyzed using sustainability analysis, prospective analysis, and hierarchy process analysis. The results showed that some of the ecological, economic, and social problems would reduce agroforestry farming's sustainability. The sustainability of agroforestry farming in the Sodonghilir sub-district is less sustainable, both in general and in each sustainability dimension (ecological, social, and economic). Two conclusions were obtained from the study. First, six key factors determine sustainable agroforestry development's success. There is farmers' knowledge in soil and water conservation, farmer group performance, availability of agroforestry technology packages, farmers' knowledge in farming activities, level of pest and plant diseases attacks, farming capital sources vital. Second, increasing farmer capacity and strengthening farmer group institutions are priority strategies that the government implement, private, and community in conducting sustainable agroforestry farming development programs in the Sodonghilir subdistrict.
Livelihood strategy of coastal households during covid-19 pandemic: case study in Wermaktian District, Tanimbar Islands Regency
Authors: Sopamena J F , Kakisina L O , Pattiselanno A E 
Published: October 2021

Abstract
This research aims to analyze coastal households' livelihood strategy in coping with the covid-19 pandemic, especially for the households who live by coastal forest in Wermaktian District, Tanimbar Islands Regency. Research is conducted at two villages, namely Marantutul Village and Batuputih Village. These villages are selected because the households in that village undergo both farming and fishery activities. The sample is determined purposively, involving 60 households with 30 households taken from each village. The research shows that households who live by coastal forest have used several strategies for fulfilling household necessities during the covid-19 pandemic. Those strategies are classified into three categories, respectively on-farm (intensifying farming works), non-farm (working at lumber industry), and off-farm (as a trader). Working in the lumber industry has the biggest contribution to household income, which is 53 percents. The remaining percentage is contributed by copra commodity, crops, fishery, and household services.
Digital extension and the development of agricultural performance in Indonesia
Authors: Nasir M A , Ismiasih  , Jamhari  
Published: October 2021

Abstract
The agricultural sector plays an essential role in providing foodstuffs for the population of every country. However, the lack of innovation in agricultural technology and the limited distribution channels for crop yields have caused farmers' welfare levels to be relatively low in various regions. Meanwhile, Smart Agriculture and 4.0 Technologies play a considerable role in increasing the agricultural sector's efficiency. Digitalization has had a significant influence on transforming traditional agricultural systems into data management-based approaches. The Desa Apps is an open access agricultural extension platform developed in Indonesia that facilitates farmers to interact with other farmers to share ideas, innovations, and solutions to face various farm and off-farm obstacles. This paper aims to describe the development platform and identify opportunities related to developing the Desa Apps platform. The results showed that Java and Sumatra islands have good potential for developing the Desa Apps platform. Besides, the registered members with the most significant reporting level are farmers, extension agents, and traders.
Food security among pandemic covid 19
Authors: Sahusilawane J F , Sahusilawane A M 
Published: October 2021

Abstract
Covid 19 which occured around the world has brought great sacrifice to humanlife, including changes in the natural order of the human life style. While, new normal or new life has been harderd following application doesn’t mean this deadly virus is able to blocked at terminated. It’s impact even goes every where bringing is one risk to another one of them was about food. People getting worried about having enough to eat. It is possible to continue in the habbit it consuming imported foodstuff does the diet still important from the island continue mainly for people in small islands such the Moluccas that have grown accustomard to eat. The decision can give the answer that 1) local food become very urgent for to survive life in pandemic 2) Woman as food supplier for the families still keep a lot of local wisdom of local food as for production as for keeping food during pandemic
Factors affecting the capacity of farming rice farmers in managing rice field in the District Tangerang
Authors: Saleh Khaerul , Suherman  
Published: October 2021

Abstract
Farmers' capacity to manage rice paddy farming is closely related to individuals' behaviour in managing the farm. Farmer capacity building program has been widely and often conducted relevant government innovation lowland rice farm and delivered to farmers. Still, the farmers cannot give a proper response to lowland rice farm management innovation, especially in terms of strengthening farmers' capacity. This study aims to: (1) determine the level of farmer capacity in managing rice paddy farmers and (2) to analyze the factors related to the capacity level of rice paddy farmers. The research was conducted in the northern part of Tangerang Regency (Pantura), the centre for rice production in the Tangerang Regency. The research was conducted from July to November 2020. Data was collected through FGD interviews and observations of 150 farmers. The data analysis used descriptive test and multiple regression. The results showed that the farmer capacity in managing lowland rice farming in Tangerang district was classified as moderate, both in resource utilization, problem identification, farming planning, and adaptability. The main factor determining the level of farmer capacity in managing rice paddy farmers is formal education and nonformal education.