bluuebunny/crossref_metadata_2025_split huggingface dataset:
Laser ablation in liquid: Heating, diffusion, and condensation
Authors: Khokhlov V A , Inogamov N A , Zhakhovsky V V 
Published: July 2020

Abstract
Laser ablation in liquid (LAL) is important technique, which is used for formation of nanoparticles (NP). The LAL processes cover logarithmically wide range of spatiotemporal scales and are not fully understood. The NP produced by LAL are rather expensive, thus optimization of involved processes is valuable. As the first step to such optimizations more deep understanding is necessary. We employ physical models and computer simulations by thermodynamic, hydrodynamic, and molecular dynamics codes in this direction. Absorbing light metal expanding into transparent solid or liquid dielectrics is considered. We analyze interplay between diffusion, hydrodynamic instability, and decrease of surface tension down to zero value caused by strong heating and compression transferring matter into state of overcritical fluids. The primary NPs appear through condensation during expansion and cooling of diffusion zone or pure gold vapor zone when pressure in these zones drops below critical pressure for a metal.
Influence of pyrolysis on evaporation and solubility of heavy metals in sewage sludge
Authors: Larina O M , Zaichenko V M 
Published: July 2020

Abstract
One of the sewage sludge characteristics is the presence of various pollutant types. This is both pathogenic microflora and chemical pollutants. For example, it is heavy metals. When using the pyrolysis process up to 800 °C with thermal cracking of volatile products, as a method of sewage sludge treatment, in addition to synthesis gas a solid residue is formed. It is about 40% by weight of the initial sewage sludge and has an ash content of 58.2% (on dry state). With this amount of ash, the use of solid residue for energy purposes is not appropriate. Such material is subject to disposal. In this connection, the question arises, what proportion of heavy metals remains in the solid residue and goes into syngas. This paper presents the study results of the effects of pyrolytic processing conditions on the behavior of heavy metals in the composition of sewage sludge. The gross content and solubility in neutral and acidic media of heavy metals in the sewage sludge and the solid residue after pyrolysis are determined. The hazard class according to the content of heavy metals of the sewage sludge and the solid residue is calculated.
Combination of the velocity interferometer system for any reflector and the photon Doppler velocimetry methods to study transparent and absorbing condensed matter
Authors: Kazieva T V , Gubskiy K L , Kuznetsov A P , Tishchenko I Yu , Glukhov R D , Pirog V A , Ananev S Yu , Grishin L I 
Published: July 2020

Abstract
The paper proposes a method for combining photon Doppler velocimetry and a system of speed interferometers for any reflective systems, which allows one to study the behavior of transparent media under the action of powerful shock waves without the use of additional reflective surfaces. The paper presents the results of an experiment on the propagation of a shock wave in water. In this experiment, water was an absorber; however, the proposed method would also work provided that the test material is transparent and provides reflection.
Influence of auxeticity on the processes of elastic deformation in a single crystal VZhM8 in the direction [011]
Authors: Tuch E V 
Published: July 2020

Abstract
The study of deformation processes in a cylinder made of monocrystalline heat-resistant nickel alloy VZHM8. Different variants of the orientation of the crystallographic axes of a single crystal of a VZhM8 nickel alloy relative to the axis of symmetry of the cylinder when it is shocks an rigid wall (Taylor test) are considered. It is shown that if the [011] direction coincides with the direction of shock loading of the cylinder, the initially circular sections of the cylinder turn into ellipses until the moment of rebound, which is explained by the influence of the negative Poisson’s coefficient.
The model of iron properties for plate impact and explosive compression simulations
Authors: Dyachkov S A , Ilnitsky D K , Parshikov A N , Zhakhovsky V V 
Published: July 2020

Abstract
The material model of iron and steel is developed for fluid dynamics simulations of samples under extreme loading induced by an impact or explosion. The model is validated on a set of plate impact tests using the contact smoothed particles hydrodynamics method. The model takes into account the polymorphic α–ε phase transition in iron which is shown to be correctly reproduced, including the hysteresis effect at unloading. The equation of state for steel is shown to be very close to that of iron on a set of tests with spherical shells under explosive compression; however the yield strength of steel is greater.
Numerical investigation of heat flux structure on the surface of a fuel grain during operation of solid fuel ramjet combustor
Authors: Razmyslov A V , Sultanov V G 
Published: July 2020

Abstract
To investigate the features of the processes inside the ramjet subsonic combustion chamber, a numerical model is used. The model is based on Reynolds-averaged Navier–Stokes equations along with turbulence, radiation and combustion models and considers solid fuel pyrolysis. Available in literature experimental data was used to validate the model. The dependences of the heat flow structure on the air flow are obtained. The effect of radiation heat transfer on the regression rate is shown.
Effect of high pressure on the thermoelectrical properties of single-walled and double-walled carbon nanotubes
Authors: Sokolovsky D N , Naymushin A V , Andreeva A G , Volkova Ya Yu 
Published: July 2020

Abstract
The effect of high pressure on the Seebeck coefficient and temperature dependences of the electrical resistance of single-wall and double-walled carbon nanotubes was studied in order to detect phase transformations occurring in carbon nanotubes in the pressure range 4–46 GPa. Diamond anvil cells with conductive synthetic diamonds were used to create high pressures. We observed a number of features associated with the structure changes of nanotubes. Temperature dependences of the electrical resistance of single and double-walled carbon nanotubes have the form characteristic of nondegenerate semiconductors. Analysis of results indicates the destruction of the structure of carbon nanotubes at high pressure.
Study of foil explosion using the soft x-ray radiography
Authors: Zhigalin A S , Oreshkin V I , Rousskikh A G , Baksht R B 
Published: July 2020

Abstract
The experiments were carried out upon a research facility comprising three current generators. One of them was used to initiate the explosion of a foil and the other two, X-pinch backlighting sources were used for diagnostics. In the experiments, an upper limit has been determined for the decay time of the metastable state of a superheated metal. For aluminum, at a foil thickness of 6 μm and a deposited energy of 5.3 ± 0.5 kJ/g, the metastable state decay time was about 90 ns; for copper, at the same foil thickness and a deposited energy of 2.1 ± 0.3 kJ/g, it was about 250 ns; for nickel at the same foil thickness and a deposited energy of 1.3 ± 0.4 kJ/g, it was about 390 ns.
Investigation of the gas density, the liquid density and the gravitational effect in the critical region of C6F6
Authors: Ustyuzhanin E E , Ochkov V F , Rykov V A , Rykov S V 
Published: July 2020

Abstract
Some thermodynamic functions are considered in the work. They have a scaling form and connected with thermodynamic properties at the saturation line (the fluid density (ρl
), the gas density (ρg
), the order parameter, the mean diameter of the coexistence curve, etc). We have paid attention to well-known experimental (ρl, ρg, T) data of C6F6, which are got in a wide temperature interval. One more object is investigated in the work. It is a height dependence of the density, ρ(h), in the critical region, here h is the distance of the gamma-ray beam from the bottom of the cell, in which the sample is placed. These (ρ, h, T) data are got at the earth gravity (g = 9.8 m/s2). In our work, it is studied a behavior of the sample at a special condition: the gravitational effect is reduced in the cell with the sample. In the case of the microgravity, we have elaborated an equation, which expresses a meniscus position in two-phase sample in the critical region. Combined models are elaborated to approximate (ρl, ρg, T) data of C6F6 in the wide temperature interval including the critical region. These models meet the scaling theory of critical phenomena.
Charges of a single grain and the grain in a cloud: Theory and experiments
Authors: Zobnin A V , Usachev A D , Lipaev A M , Molotkov V I , Pustyl’nik M Y , Thoma M A , Thomas H M 
Published: July 2020

Abstract
The effect of cloud density on the grain charging is of great importance in complex plasma physics. The quasi-neutrality condition brings about changing of ratio of a spatially averaged ion density to electron density in the dust cloud. Strong interaction between ions and highly charged grain complicates the analysis of the effect of ion density increasing on ion flux on the grain. The theoretical approach to ion flux correction on the grain space charge by the use of effective ion density instead of spatially averaged density is discussed. The experimental measurements of charges of solitary grains and the grains in the cloud under similar plasma parameters are used to prove the proposed approach.
Stochastic nanostructure and fuzz-like structure formation on the material surface under powerful plasma load in the plasma linear multicusp device
Authors: Budaev V P , Fedorovich S D , Martynenko Yu V , Karpov A V , Lukashevsky M V , Lazukin A V , Gubkin M K , Gerasimov D N , Shestakov E A , Sviridov E V , Marchenkov A Yu , Rogozin K A , Gvozdevskaya D S , Zakletskii Z A 
Published: July 2020

Abstract
The plasma linear multicusp (PLM) device was constructed to test materials by powerful plasma loads. The facility is a linear magnetic trap with an 8-pole multicusp magnetic plasma confinement. In the PLM, the electron temperature of the hot and cold fraction is of 50 and 10 eV, the electron density—2 × 1018 m−3, the stationary plasma confinement is up to 200 min and more, which is an advantage for testing materials of the divertor and first wall of a fusion reactor. Tungsten, molybdenum, graphite, iron were tested in stationary helium discharges in the PLM with the thermal load more than 1 MW/m2. The temperature of the tested plates reached 1000 °C and more. A stochastic nanostructured surface and fuzz-like structure with fibers of less than 50 nm in a diameter were observed on the surfaces irradiated by hot plasma.
Examination of Pap Smear as A Screening Lesion of Cervical in Muaro Pijoan Village Working Area of Puskesmas Sungai Duren, Muaro Jambi District, Jambi Provence
Authors: Fairuz  , Dewi Hasna , Kalsum Ummi 
Published: July 2020

Abstract
Cervical cancer is a primary savage tumor that comes from squamous epithelial cells. It is the second killer after mammary cancer for women in developing countries including Indonesia. The incidence of cervical cancer in Indonesia increases that causes woman death in their productive age. Pap smear is one of method of cancer screening which is efficacious, simple, and cost effective. By applying pap smear in developing countries, the incidence of invasive cervical cancer has been reduced around 46-76% and the mortality has been declined around 50-60%. This study aims to describe clinic ocytopathology of pap smear in Muaro jambi village, Muaro Jambi district, Jambi province. This is prospective descriptive observation study at Pathology Anatomic Department of Medical Faculty, Jambi University. The data was obtained from all women that have been examined for pap smear in the public health Sungai Duren, Muaro Jambi district in July 2018. The range distribution of patients was found in 22.00-62.00 years old, multiparty woman (75.0%) with cervical chronic non specific (37,0%) and Negative for Intraepithelial Lesion (NILM) (34,0%), 20 woman with Atypical Squamous Cell of Undetermined Significance (ASCUS), 1 woman with Low Grade Squamous Intraepithelial Lesion (LSIL) and 1 woman with High Grade Squamous Intraepithelial Lesion (HSIL) as moderate dysplasia. The highest distribution abnormality of squamous epithelial cell was 41 years old, multipara (100%). Moderate dysplasia (HSIL) was woman with hormonal contraception. The incidence abnormal epithelial cervical cell was highest on 46 years old woman, with hormonal contraception and multiparty. The description of abnormal epithelial cervix cells was found to be ASCUS.
Automatic Spray Desinfectant Chicken With Android Based On Arduino Uno
Authors: Ahfas Akhmad , Ulum Mohammad Bahrul , Saputra Dwi Hadidjaja Rasjid , Syahrorini Syamsudduha 
Published: July 2020

Abstract
Technology plays a very important role in human life. Many devices and applications are created to facilitate human work. In the world of chicken farming many problems are found both in terms of objects and their management. In chicken farms, problems often arise about the decline in the quality of livestock due to disease attacks. Diseases in chicken farms arise due to poor chicken coop conditions and lack of attention from the management. To maintain the condition of the chicken coop remains sterile from disease attacks, then spraying disinfectant chemicals. Disinfectant chemicals are classified as dangerous when exposed to the human body directly. Automatic chicken cage disinfectant spray with Android-based arduino UNO aims to simplify and provide a sense of security when spraying disinfectant for farmers. The process of spraying disinfectant can be done remotely using an Android smart phone application and Arduino Uno microcontroller hardware with Bluetooth communication. HC-05 bluetooth module as a communication medium between Android smart phone with arduino Uno, diarfaghma 12 vdc pump, 80 psi as spray disinfectant while disinfectant spray drive uses 5 vdc motor. Automatic chicken cage disinfectant spray can be done at a maximum distance of 10 meters.
Biodiversity Protection from the Impact of Illegal Gold Mining for Sustainability
Authors: Puluhulawa Fenty U. , Harun Amanda Adelina 
Published: July 2020

Abstract
Biodiversity protection as the ecosystem formation component that supports the process of life is highly needed to take into account. Several previous studies show that biodiversity in Gorontalo is decreased that it will endanger other biodiversities in this region if this urgent issue is not immediately resolved. One of the solutions is through cross science. The objective of this study is to describe biodiversity and Artisanal and Small-Scale Gold Mining (ASGM) along with the needs to optimize the functions of law in protecting biodiversity. This study was conducted by referring to previous studies, so that secondary data were used. It also employed an interview section in order to support the secondary data mentioned previously. Further, the data were analyzed using a qualitative descriptive analysis based on several relevant statutory norms.
The Effect of Processed Tempeh Gembus Administration on Blood Glucose in Obese Women
Authors: Isnawati M , Larasati M D , Muninggar D L P , Afifah D N , Suromo L B , Sulchan M 
Published: July 2020

Abstract
Tempeh gembus is a local functional food from Indonesia which made from fermented tofu residues from Rhizopus oligosporus and containing high fibre. The fibre content in tempeh gembus are three times higher than soybean tempeh. Dietary fibre is thought to reduce blood glucose levels. The aim this study is to analyze the effect of giving variations of processed tempeh gembus on fasting blood glucose level. This study was an experimental study with a pre-post randomized control group design. The number of control and treatment group subjects was 20 people each who met the inclusion criteria. The control and treatment groups received 1500 kcal isocaloric diet. In addition, treatment group received additional variations of processed tempeh gembus 150 grams for 28 days. The average intake of processed tempeh gembus treatment group during the study was 58.9%. The average fibre intake of the treatment group was twice higher than the control group. There was no statistically significant difference in fasting blood glucose levels between the control and treatment groups after the intervention. There was no statistically significant difference on fasting blood glucose levels in both the control group and the treatment group (p> 0.05) but clinically it was able to reduce fasting blood glucose levels 4.5 mg / dl in the treatment group. Changes in blood glucose levels showed no significant differences between the control and treatment groups (p> 0.05). Processed tempeh gembus administration for 28 days increase fibre intake but could not been able to reduce fasting blood glucose levels.
Mixed vegetable-fruit leathers properties on various proportions on several fruits with mustard greens (Brassica juncea)
Authors: Saidi Ida Agustini , Miftakhurrohmat Agus , Wulandari Fitria Eka , Nurbaya Syarifa Ramadhani , Widianto Ardin 
Published: July 2020

Abstract
Mustard greens (Brassica juncea) is highly produced lowland leafy vegetable in Sidoarjo, East Java, Indonesia. There has not been any other usage of mustard greens in this region besides for culinary purposes while leafy vegetable is perishable poduct. Leather is maybe the answer of product diversity in commercial utilizations. Leathers made by mixing mustard greens and fruits purees with proportions of 40% : 60%; 60% : 40%; and 80% : 20% using tropical fruits those are jackfruit, pineapple, and papaya. The physicochemical and sensory studied showed that mixing mustard greens with fruits increased crude fiber content, rendemen and hardness of vegetable-fruit leathers. The best treatment in this experiment is proportion of mustard greens with pineapple (60%:40%) with physicochemical and sensory properties were 11.57% moisture; 2.72% ash; pH 4.20; lightness 43.59; redness -4.69; yellowness 5.53; 1.02% fiber; yield 30.58%; hardness 503.15; sensory color 4.90 (neutral-rather like); sensory aroma (neutral-rather like); sensory texture 5.07 (rather like-like); and sensory taste 5.00 (rather like).
Increase Electricity Supply to the Community to Support Sustainable Development by Minimizing House Load in Geothermal Power Plant
Authors: Hidajat Raity Arief , Utomo Suyud Warno , Garniwa Iwa , Karuniasa Mahawan 
Published: July 2020

Abstract
Recently, electricity consumption in Indonesia continue to increase rapidly along with the increase in development, economic growth and also the increase in the population. One potential source of electrical energy comes from geothermal energy, where Indonesia has enormous potential. According to data from the Geological Agency, Ministry of Energy and Mineral Resources, until the end of 2016 there were at least 331 geothermal energy source locations throughout Indonesia, where most of the potential was on a volcanic track with a potential of 28,579 MW and this is the largest geothermal energy in the world. In its operation, power plants need energy to supply their own needs (house load) which amounts up to 10 % of the electrical energy produced. Own electricity needs are used to drive brine and condensate pumps, fan drive motors in cooling towers, lamps and electronic appliances in well pad and offices. The use of this energy can be minimized to increase electricity production which is distributed to users. The methodology used in this research is lean sigma process through the Define-Measure-Analyze-Improve (DMAI) steps. The first step is to define the problems regarding opportunity from electricity use for own needs that can be saved and constraints faced, the next step is to measure the electrical usage as baseline data, then analyze to find the causes of inefficiencies in electricity use and the last make improvement programs. From a case study conducted at the Gunung Salak geothermal power plant in West Java, the energy efficiency of house load can be minimized by up to 7.5%-10% in 2018-2019. Greater energy supply to the community will have an impact on improving the economy of the community to support production activities that require electrical energy.
A Challenge of Inorganic Solid Waste Reduction Practices in Suburban Area
Authors: Susilowati S , Martono D N , Wahyono S , Herdiansyah H 
Published: July 2020

AbstractIn the upcoming era, developing countries face a problem in waste management. Waste management through a waste bank commonly practiced by communities in urban such as Surabaya, Tasikmalaya, Makassar and Medan, and mostly shows positive impacts. It investigates inorganic waste reduction practices at Kepodang and Kemuning waste banks in Bekasi City. Those located in the middle-class residential and slum area. Both are improving in terms of the volume of waste collected. These activities result in reducing waste to landfills, turn the trash to cash, and save natural resources. It is interesting because both waste banks have a different social-economic background. It occupies comparative analysis and correlation analysis to compare both waste banks and to analyze the correlation between the number of customers and waste reduction. It concludes that waste banks with better resources deliver better performance, and the number of customers is not in line with waste reduction. The barrier in the implementation is the low participation of the community. It’s recommended to improve household participation and promote composting of organic waste at the household level to get a significant reduction.
Impact and Evaluation of Construction Stage of Water Resources and Hydropower Projects on Ecological Environment
Authors: Yongrong Qin 
Published: July 2020

Abstract
With the continuous development and progress of modern society, engineering construction in various fields is also constantly improved. Among them, water conservancy and hydropower engineering are the main guarantee project for the development of modern society. However, large area of earthwork needs to be constructed in the construction process of water conservancy and hydropower engineering. In order to effectively solve the impact of water conservancy and hydropower engineering on the ecological environment in the construction process, in order to promote the construction of water conservancy and hydropower projects and provide a good impetus for the work of ecological environment protection, it is necessary to analyze and study the actual impact and formulate scientific and reasonable solutions. Based on this, this paper will analyze the impact of water conservancy and hydropower projects on the ecological environment, and then work out the construction of water conservancy and hydropower projects and ecological environment protection measures, and finally provide a good guarantee for the smooth construction of water conservancy and hydropower projects and the protection of the ecological environment.
Synergetic Optimization of Water Resources, Energy and grain in the Yellow River Basin
Authors: Ke Zhou 
Published: July 2020

Abstract
Firstly in this paper an overall analytical framework model of water-energy-grain based on the synergetic theory was established. Secondly, a total partition structure model was built, which is also known as the water-energy-grain synergetic optimization model with internal control feedback function. An intelligent multi-factors balancing algorithm was also studied. Finally, the integration of the synergetic optimization distribution scheme and strategy for grain production, energy and water resources utilization in the Yellow River basin was put forward. The synergetic optimization theories of water resources allocation, grain production, energy resources development as well as models correlation and parameters transfer were systematically dealt with.