bluuebunny/crossref_metadata_2025 huggingface dataset:
Theway-construction in World Englishes*
Authors: Brunner Thomas , Hoffmann Thomas
Published: February 2020

Theway-construction (e.g.He sang his way into our hearts) is a highly idiomatic English Argument Structure construction. Apart from a brief discussion in Davies and Fuchs (2015: 13), however, no study has looked at the construction in World Englishes. Drawing on more than 14,000 tokens from theCorpus of Global Web-Based English(GloWbE), we present the first in-depth empirical analysis of the construction across various types of World Englishes. Our results provide support forHoffmann’s (2014)claim of the correlation of Dynamic Model stage (Schneider 2003,2007) and constructional productivity: the overall frequency of the construction as well as the productivity of the verbal, nominal, and prepositional slots of the construction correlate positively with a variety’s phase in the Dynamic Model. Moreover, it turns out that the less entrenched a variety is according to the Dynamic Model, the stronger is its tendency to select specific prototypical, or frequent, fillers in the constructional slots. Finally, we find no evidence for the reliteralisation hypothesis, i.e. that less advanced varieties exhibit a preference for concrete verbs or nouns.
Non-canonical syntax in an Expanding Circle variety
Authors: Leuckert Sven , Rüdiger Sofia
Published: February 2020

This paper analyzes fronting constructions in spoken Korean(ized) English. Non-canonical syntax is an important means of structuring discourse, but its use by speakers of Expanding Circle Englishes has so far received only insufficient attention in studies of World Englishes. Taking a corpus-linguistic approach, this study determines to which extent topicalization and left-dislocation are used by South Korean speakers of English in informal conversations. In our explanation of the results, which show that fronting constructions are clearly part of the Korean English repertoire albeit used with varying frequencies, we mainly draw on notions of language contact (i.e. Korean as the substrate being a topic-prominent language) and language acquisition processes.
Speech-unit finallikein Irish English
Authors: Schweinberger Martin
Published: February 2020

This paper investigates the use of speech-unit finallike(SUFlike) in standard Irish English (IrE) and takes a variationist approach based on the Irish component of theInternational Corpus of English(ICE-IRL). The analysis includes both sociolinguistic factors (age, gender, occupation type, religious affiliation, conversation type, audience size, type and zone of residence) and a psycholinguistic factor (priming). The statistical analysis extends previous research on SUFlikein that it applies the principle of accountability and shows that priming significantly facilitates SUFlikeuse, that SUFlikehas increased between an earlier (1990–1994) and a later phase (2002–2005) of data collection and that, between 2002 and 2005, SUFlikeuse correlates negatively with audience size but not so in data collected between 1990 and 1994. The relative absence of significant social stratification of SUFlikeuse suggests that SUFlikecontinues to be a frequent feature of standard IrE and substantiates that it is a linguistic marker of Irish identity.
‘Overloaded like a Bolivian truck’
Authors: Haynes Nell
Published: February 2020

Memes have become an important linguistic tool not only for communicating emotions and ideas, but also are integral to constructing the self in online space. This paper concentrates on copper miners in northern Chile and the ways they use memes to make claims related to (hetero)sexuality,mestizaje, and nationalism. With men at the mine during week-long shifts and families in towns several hours away, social media is important for maintaining communication as well as representing the self. Miners present their labor as central to their sense of self, with memes that indirectly index heterosexuality, modernity associated with resource extraction, and racialmestizajelinked to nationalism. The visibility of these memes across spaces of both mine and town gives men an opportunity to construct a cohesive digital self, with implications for reinforcing assumptions about what is appropriate gender performance.
Gender disparity in scientific publishing: What can we do?
Authors:   JEM Editorial Team
Published: February 2020

The editors at JEM share their views on gender bias in scientific publishing and their efforts to ensure that JEM remains a bias-free environment for all authors, reviewers, and editors.
Influence of driving ways on measurement of relative phase in a two-atoms cavity system*
Authors: Bao Daqiang , Xu Jingping , Yang Yaping
Published: February 2020

We study the influence of driving ways on the interaction in a two-atoms cavity quantum electrodynamics system. The results show that driving ways can induce different excitation pathways. We show two kinds of significantly different excitation spectrums under two ways: driving cavity and driving atoms. We demonstrate that driving atoms can be considered as a method to obtain the position information of atoms. This research has very practical application values on obtaining the position information of atoms in a cavity.
Controlling electron collision by counterrotating circular two-color laser fields*
Authors: Li Baoqin , Ren Xianghe , Zhang Jingtao
Published: February 2020

Electron collision as well as its controlling lies in the core of study on nonsequential double ionization (NSDI). A single collision occurred in a convergent time is important to disclose the essential features of the electron correlation. However, it is difficult to form such a collision. By using counterrotating circular two-color (CRTC) laser fields, we show that a single electron collision can be achieved in a convergent time and a net electron correlation is set up within the sub-femtosecond time scale in the NSDI process of Ar atoms. The proposed method is also valid for other atoms, provided that one chooses the frequency and intensity of the CRTC field according to a scaling law.
Non-Born–Oppenheimer study of the muonic molecule ion 4He μ+*
Authors: Yang Hang , Wu Meng-Shan , Zhang Yi , Shi Ting-Yun , Varga Kalman , Zhang Jun-Yi
Published: February 2020

Accurate non-Born–Oppenheimer variational calculations of all bound states of the positive muon molecular ion 4Heμ+ have been performed using explicitly correlated Gaussian functions in conjunction with the global vectors. All the energies obtained are accurate in the order of 10−6 Hartree (1 Hartree = 27.2114 eV). Compared with the binding energies obtained from calculations based on the Born–Oppenheimer potential with the mass-weighted adiabatic corrections (Chem. Phys. Lett.
110 487 (1984)), the largest relative deviation is up to 15%. By analyzing the average interparticle distances and possibility distributions of interparticle distances of this system, it is confirmed that the Born–Oppenheimer approximation is reasonable for this system and that 4He μ+ can be regarded as a system of positive muon bound to a slightly distorted helium atom.
Fabrication and characterization of vertical GaN Schottky barrier diodes with boron-implanted termination*
Authors: Wang Wei-Fan , Wang Jian-Feng , Zhang Yu-Min , Li Teng-Kun , Xiong Rui , Xu Ke
Published: February 2020

The vertical GaN-on-GaN Schottky barrier diode with boron-implanted termination was fabricated and characterized. Compared with the Schottky barrier diode (SBD) without boron-implanted termination, this SBD effectively improved the breakdown voltage from 189 V to 585 V and significantly reduced the reverse leakage current by 105 times. In addition, a high I
on/I
off ratio of ∼108 was achieved by the boron-implanted technology. We used Technology Computer Aided Design (TCAD) to analyze reasons for the improved performance of the SBD with boron-implanted termination. The improved performance of diodes may be attributed to that B+ could confine free carriers to suppress electron field crowding at the edge of the diode, which could improve the breakdown voltage and suppress the reverse leakage current.
Effect of initial crystallization temperature and surface diffusion on formation of GaAs multiple concentric nanoring structures by droplet epitaxy*
Authors: Wang Yi , Guo Xiang , Wei Jiemin , Yang Chen , Luo Zijiang , Wang Jihong , Ding Zhao
Published: February 2020

GaAs multiple concentric nano-ring structures (CNRs) are prepared with multistep crystallization procedures by droplets epitaxy on GaAs (001) to explore the influence of different initial crystallization temperatures on CNRs morphology. Atomic force microscope (AFM) images show that GaAs nanostructures are more likely to form elliptical rings due to diffusion anisotropy. Meanwhile, with the increase of initial crystallization temperature, the inner ring height and density of CNRs are increased, and outer rings are harder to form. In addition, the mechanism of formation of CNRs is discussed by classical nucleation theory and diffusion theory. The method can be used to calculate the diffusion activation energy of gallium atoms (0.7±0.1 eV) on the GaAs (001) surface conveniently.
HRM: H-tree based reconfiguration mechanism in reconfigurable homogeneous PE array
Authors: Deng Junyong , Jiang Lin , Zhu Yun , Xie Xiaoyan , Liu Xinchuang , He Feilong , Song Shuang , John L. K.
Published: February 2020

In order to accommodate the variety of algorithms with different performance in specific application and improve power efficiency, reconfigurable architecture has become an effective methodology in academia and industry. However, existing architectures suffer from performance bottleneck due to slow updating of contexts and inadequate flexibility. This paper presents an H-tree based reconfiguration mechanism (HRM) with Huffman-coding-like and mask addressing method in a homogeneous processing element (PE) array, which supports both programmable and data-driven modes. The proposed HRM can transfer reconfiguration instructions/contexts to a particular PE or associated PEs simultaneously in one clock cycle in unicast, multicast and broadcast mode, and shut down the unnecessary PE/PEs according to the current configuration. To verify the correctness and efficiency, we implement it in RTL synthesis and FPGA prototype. Compared to prior works, the experiment results show that the HRM has improved the work frequency by an average of 23.4%, increased the updating speed by 2×, and reduced the area by 36.9%; HRM can also power off the unnecessary PEs which reduced 51% of dynamic power dissipation in certain application configuration. Furthermore, in the data-driven mode, the system frequency can reach 214 MHz, which is 1.68× higher compared with the programmable mode.
Modelling of high-speed railway traction power supply systems based on subspace identification
Authors: Wu D Y , Ma L , Cheng S K
Published: February 2020

In this paper, reduced mathematical models for high-speed railway traction power systems based on subspace identification method (SIM) are proposed. SIM applies reliable algebra tools to estimate state variables, and then provides an analytic representation for the identified systems, especially those of large dimension. Accuracy for identification results of different orders is discussed, under both normal operation and fault cases. With appropriate accuracy-simplicity trade-off, a uniform order decision is deduced. Reduced models derived from identification could be used for further studies of network-side impact on train-network coupling problems.
Design and implementation of an android application for face detection and age estimation
Authors: Rasoul Lubna N , Abbas Ahmed K , Rasol Murtadha N
Published: February 2020

Age is an important attribute of identity and social interaction as well for medical processing. Face is consists several elements to predict the human age such as facial wrinkles and youthfulness. Age estimation from the face by intelligent human-machine interfacing is required to capture picture that may contains different parts as well the human face. In order to estimate age, we need to detect only the face information. This research proposes an android application to take photo for anyone using android camera or upload photo from gallery, then it will determine the age for everybody in the photo. The application can guess the physical age for the faces depends on internet servers. The application tested on many persons and the results was correct under some conditions such as (the light of picture, the normal state for face, camera accuracy), the other results was correct 90- 95% under other conditions. This application easy to use, and simply you can use it to detect the age of your friends. This proposed application can be used in security, parks and swimming pools entrances, and medical clinics
A numerical approach for fish fillet modeling during freezing process _ Case study from Vietnamese catfish fillets
Authors: Nguyen T T T , Do Q K , Vo C C , Nguyen T V
Published: February 2020

Freezing is one of the most complicated treatment in food processing due to the dependence of food properties on temperature. In addition, many kinds of food contain a high proportion of water which has some special thermal characteristics. In this study, the freezing process for a fish fillet from Vietnamese catfish fillets is considered using the Finite Element Method. The coupled heat and mass transfer problem is investigated in a discretized computational domain. Numerical results obtained from COMSOL solver then are compared with the experimental data to prove the efficiency of the proposed method.
Shifting agricultural practices to produce sustainable, low carbon intensity feedstocks for biofuel production
Authors: Liu Xinyu , Kwon Hoyoung , Northrup Daniel , Wang Michael
Published: February 2020

The carbon intensity (CI) of biofuel’s well-to-pump life cycle is calculated by life cycle analysis (LCA) to account for the energy/material inputs of the feedstock production and fuel conversion stages and the associated greenhouse gas (GHG) emissions during these stages. The LCA is used by the California Air Resources Board’s Low Carbon Fuel Standard (LCFS) program to calculate CI and monetary credits are issued based on the difference between a given fuel’s CI and a reference fuel’s CI. Through the Tier 2 certification program under which individual fuel production facilities can submit their own CIs with their facility input data, the LCFS has driven innovative technologies to biofuel conversion facilities, resulting in substantial reductions in GHG emissions as compared to the baseline gasoline or diesel. A similar approach can be taken to allow feedstock petition in the LCFS so that lower-CI feedstock can be rewarded. Here we examined the potential for various agronomic practices to improve the GHG profiles of corn ethanol by performing feedstock-level CI analysis for the Midwestern United States. Our system boundary covers GHG emissions from the cradle-to-farm-gate activities (i.e. farm input manufacturing and feedstock production), along with the potential impacts of soil organic carbon change during feedstock production. We conducted scenario-based CI analysis of ethanol, coupled with regionalized inventory data, for various farming practices to manage corn fields, and identified key parameters affecting cradle-to-farm-gate GHG emissions. The results demonstrate large spatial variations in CI of ethanol due to farm input use and land management practices. In particular, adopting conservation tillage, reducing nitrogen fertilizer use, and implementing cover crops has the potential to reduce GHG emissions per unit corn produced when compared to a baseline scenario of corn–soybean rotation. This work shows a large potential emission offset opportunity by allowing feedstock producers a path to Tier 2 petitions that reward low-CI feedstocks and further reduce biofuels’ CI. The prevalence of significant acreage that has not been optimized for CI suggests that policy changes that incentivize optimization of this parameter could provide significant additionality over current trends in farm efficiency and adoption of conservation practice.
Long-term trends of global maximum atmospheric mixed layer heights derived from radiosonde measurements
Authors: Li Jing , Chu Yiqi , Li Xichen , Dong Yueming
Published: February 2020

The height of the atmospheric mixed layer is a critical parameter controlling the vertical dispersion of pollutants. Here we calculate daily maximum mixed layer height (MMLH) using operational radiosonde and surface meteorological measurements made at 219 carefully selected WMO weather stations and analyze their long-term trends from 1973 to 2018. We found that 74 stations showed significant increases in MMLH, whereas 48 sites showed negative trends. Positive trends are mainly found in Central US, Europe, Africa, East and Southeast Asia and East Australia. Stations over the coastal US, India and West Australia generally exhibit negative trends. The trends can be attributed to changes in vertical temperature gradient

∇

θ

v

between 950 and 700 hPa and diurnal temperature range (DTR).

∇

θ

v

in general decreased and caused positive MMLH trends over the majority of the regions. DTR decreases globally, causing negative MMLH trends (corresponding to decreased DTR), and plays a more important role over India and Central Asia.
Fire weather drives daily area burned and observations of fire behavior in mountain pine beetle affected landscapes
Authors: Hart S J , Preston D L
Published: February 2020

In the western United States, mountain pine beetles (MPBs) have caused tree mortality across 7% of the forested area over the past three decades, leading to concerns of increased fire activity in MPB-affected landscapes. While fire behavior modeling suggests MPB-associated changes in fuels may influence fire behavior, retrospective studies have generally found negligible or weak effects of pre-fire MPB outbreak on fire activity. This apparent disagreement may arise from differences in fire weather, fuels, or scale and highlights the need for empirical studies that examine the influence of MPB outbreak on fire activity at finer spatiotemporal scales. Here we use a novel combination of geospatial data and firefighter observations to test the relative influences of red and gray stage MPB outbreak on two measures of daily wildfire activity—daily area burned (DAB) and observed fire behavior. We analyzed 2766 large wildfires that burned in the West over the 2003–2012 period. We found 329 fires that intersected prior MPB outbreak, however most burned in areas affected by MPB for only a few days (median = 4 d). We modeled DAB and the occurrence of observation of high-extreme fire behavior in 57 large (>1140 ha) wildfire events that burned for long time periods (>10 d) in landscapes affected by MPB. Under these conditions, we found no effect of red or gray stage MPB outbreak on either DAB or observed fire behavior. Instead, greater DAB and observations of high-extreme fire behavior occurred during warmer, drier, and windier weather conditions and where pre-outbreak fuels were characterized by lower canopy base heights and greater canopy bulk densities. The overriding influence of weather and pre-outbreak fuel conditions on daily fire activity observed here suggest that efforts to reduce the risk of extreme fire activity should focus on societal adaption to future warming and extreme weather.
Current pole inner distribution method for measuring tower grounding resistance
Authors: Guang Zhao Jun , Luo Yu Ying , Zhang Jun , Gan Xin , Liu Zhao , Long Zhang Zhan , Dong Zi Jian
Published: February 2020

Three electrode method is a common method in measuring tower grounding resistance. However, its wiring distance is too long to complete accurate measurement in some terrain narrow areas, which is also an application problem to be solved urgently in the field of tower grounding resistance measurement. The traditional three electrode method is to find the compensation point between the grounding pole and the current pole. After calculation, there are also compensation points near the current pole besides the grounding pole and the current pole by using the traditional three electrode method. Based on this principle, the current pole is arranged between the grounding pole and the voltage pole by the current pole inner distribution method, which can greatly shorten the distance of the distribution pole. Through simulation analysis and test verification, the pole inner distribution method can control the pole distribution distance around 50m on the basis of ensuring the accuracy of the measurement results. Compared with the three-pole method, the pole distribution distance is shortened to 60%.
Research on fault location of distribution network based on Radar principle
Authors: Jia Yu , Linhuan Wei , Xuemin Leng , Yang Gao
Published: February 2020

When the distribution network fails, the operation and maintenance personnel need to quickly determine the fault location and minimize the scope of the inspection line so that the fault repair personnel can accurately reach the vicinity of the fault point to carry out work. Whether the fault location method is advanced and reliable directly affects the power failure time of the power supply user, and further affects the social, economic, and life aspects. Therefore, the fault location of the distribution network needs to satisfy both reliability and accuracy. It is the basis and premise for troubleshooting, isolating and restoring the power supply. The automation level of China’s distribution network is relatively backward, and the reliability of power supply equipment is relatively low, making it difficult to find fault points. If we find out the intelligent algorithms that can meet the requirements of rapid positioning, accuracy and fault tolerance through theoretical research, we can Improve the fault location efficiency very well.
Research on improvement of ambient temperature of wind turbine engine room
Authors: Yang Gao , Shiming Fu , Baoliang Liu , Xuemin Leng
Published: February 2020

A good cabin environment and reasonable cabin temperature are a powerful guarantee for the safe operation of wind turbines. By installing the cabin intelligent intelligent filtering and cooling system in the wind turbine, the cabin environment can be effectively improved, the cabin temperature can be reduced, the downtime of the wind turbine can be reduced, the grid-connected operation time of the wind turbine can be improved, the safe operation of the wind farm can be guaranteed, and the wind farm can be improved. Operational efficiency and economic benefits.
Speed control of brushless de motor using Ant Colony Optimization
Authors: Kouassi B A , Zhang Yiming , Mbyamm Kiki M J , Ouattara S
Published: February 2020

DC motor has as a key aspect of industrial applications. Thus, due to their high performance, BLDC motors are preferred as a small horsepower motor. However, it is hard to acquire the good controlling performance with traditional tuning approaches in order to solve the speed control. This paper provides an approach of determining the optimum control parameters of PID for the BLDC speed control using the Ant Colony Optimization (ACO), which is an intelligent algorithm based on feeding behavior of the swarm. The efficiency and validity of the design method based on ACO are shown in the Simulation outcomes.
Effect of the number of blades on undershot waterwheel performance for straight blades
Authors: Adanta Dendy , Agil Fadhel Kurnianto Muhamad , Warjito  , Nasution Sanjaya BS , Budiarso
Published: February 2020

Access to electricity in Indonesia is limited due to the remote area of the community. In the modern era, electricity is a primary necessity and indicator of welfare. To overcome this problem, using renewable energy resources in the remote areas of Indonesia is an appropriate alternative. Based on this condition, the pico hydro-type undershot waterwheel is suitable to be used in Indonesia, because undershot waterwheels are appropriate for low head conditions or low river flow. This study will examine the effect of different blade numbers on the performance of undershot waterwheels for straight blades. There are four blade number variations: 8, 12, 16, and 20. The computational fluid dynamic method was used because it can visualise the flow pattern with more detail than other methods. Activating six degrees of freedom is needed to predict the rotational speed of the turbine’s interaction with the water and blade. Based on the results, 20 blades produced higher efficiency than others. However, the 8 blades had a stable performance and produced higher rotational speed than the other. The empirical equation for determining the number of blades of undershot waterwheels adopted by the Pelton turbine is correct.
Analysis of large deviation between reheat steam temperature of 200MW unit and main steam temperature of steam turbine side
Authors: Le Ying
Published: February 2020

With the increasing task of energy conservation and emission reduction, the accuracy of important parameters of the unit is particularly important.In this paper, the main steam temperature on the side of a steam turbine in a thermal power plant is lower than that on the side of a boiler.Through analyzing the possible problems of measuring medium, measuring element, measuring channel and parameter display one by one, the reasons for the deviation of measured parameters are obtained, so as to improve the safe, economic and stable operation of the unit.This article has certain reference value to the similar question.
Simulation modeling study on short circuit ability of distribution transformer
Authors: Shiling Zhang , Lin Gong
Published: February 2020

Under short circuit condition, the oil immersed distribution transformer will endure combined electro-thermal stress, eventually lead to the mechanical damage of the inner winding of distribution transformer, therefore it is necessary to study the short circuit ability of the oil immersed distribution transformer. In this paper, the typical current waveform of the distribution transformer under the short-circuit condition is analyzed theoretically. The short circuit fault simulation model of distribution transformer is built on the MATLAB/Simulink simulation platform, the short circuit waveform of the single phase, double phase and three phase short circuit is obtained. Further on the ANSYS simulation platform, three dimensional solid modeling of the three-phase five column transformer is carried out, the harmonic and transient field are applied to analyze the magnetic field distribution of the key components in distribution transformer under the short circuit condition, the internal cause of large short-circuit force in the winding of the distribution transformer under the short circuit condition is analyzed to certain extent. The results of the modeling and simulation show that the three phase short circuit current is larger than the single-phase and bi-phase short circuit current. Its value is 1.45 times the normal running current, which is the gradual damping asymmetrical short-circuit current. Magnetic induction intensity is in-homogeneous in the circumferential direction of the core column, and the degree of in-homogeneity varies along height. The magnetic density distribution under the short circuit condition is more than 6 times as much as the the normal condition. From the point of view of simulation modeling, short circuit ability of the oil immersed distribution transformer is analyzed, distribution characteristics of short circuit current and magnetic field of oil immersed distribution transformer under short circuit condition have been obtained, the theoretical reference value of the state characteristics and protection measures of oil immersed distribution transformer under the overload condition can be provided.
Effect of magnetic field configuration on Faraday MHD accelerator
Authors: Li Lai , Lu Xi , Zhu Guiping , Huang Hulin , Zhang Xidong
Published: February 2020

This works aims at the study of a Faraday electric accelerator with the plasma of argon used as the working gas, which is pre-ionized by nuclear energy. The electron density of plasma is above 1020/m3. Different configurations of magnetic field are numerical studied to obtain the influences on the plasma ionization and flowing characteristics. A relatively higher velocity and electron number density are obtained in monotonically decreasing magnetic field generated by magnet with a shorter length. When the plasma flows through the magnetic field generated by 75-mm magnets, the outflow velocity is 2040 m/s, which is higher than 2016 m/s when the plasma flows through the magnetic field generated by 100-mm magnets.
Application of attitude sensor in torque measurement of isolator switch
Authors: Zeng Zhaoqiang , Mao Wenqi , Zhou XiaoLei , Mao YouJian , Peng Jia
Published: February 2020

Attitude sensor has excellent angle measurement function. Aiming at the current situation that it is difficult to measure rotation angle in on-line monitoring of isolator torque, this paper studies the structure, technical parameters and algorithm of attitude sensor suitable for measuring rotation angle, and develops corresponding application software, which can automatically plot relational curve of the torsion and spindle rotation angle. So that the on-line monitoring of torque can be realized.
Research on epoxy-based nanocomposites with high energy density and charge-discharge efficiency filled with Ti02 nanofibers
Authors: Kong Bo , Meng YongPeng , Chen SiYu , Gao YuShuan , Cheng YongHong , Wang WenKe
Published: February 2020

Capacitor films with high energy density are critical to energy storage. However, the energy density of state-of-the-art commercial capacitor films are limited by their low dielectric permittivity. In this study, epoxy-based nanocomposite films are prepared by filling with Ti02 nanofibers. Results show that nanocomposite films have larger discharge energy density because of the significant increase in dielectric permittivity, which caused by the additional interface polarization and space charge polarization. And a superior charge-discharge efficiency is achieved in the composite films at the same time due to the low dielectric loss. In addition, the composites also keep a high breakdown strength because of the dispersion of the nanofibers. The discharge energy density of 5.19 J/cm3 with the efficiency of 80% is achieved at 470 MV/m in the nanocomposites containing 2wt% nanofibers. The excellent energy density and charge-discharge efficiency of epoxy-based nanocomposites offer a promising opportunity for future researches and industrial application.
Metrics of energy consumption in software systems: a systematic literature review
Authors: Ergasheva S , Khomyakov I , Kruglov A , Succil G
Published: February 2020

The current situation when using tight time frames and frequently changing requirements when creating software dictates the need to create a system for monitoring energy consumption at any stage of production of a software product. At the first stage, we need to evaluate the state-of-the-art on this topic. To this goal, we conducted a systematic literature review. During the review more than 500 studies were observed and 124 of them were selected for detailed analysis. Among these papers, 169 metrics were derived and assessed from the point of their applicability within invasive software development process analysis. The study demonstrates the relevance of the questions posed and shows the immaturity of the area. There is no evolutionary study and the possibility of assessment at any stage of the development of a software product. The data show the importance and relevance of technical work and the importance of its further development.
Modelling best fit-curve between China’s production and consumption-based temporal carbon emissions and selective socio-economic driving factors
Authors: Jawad Sajid M.
Published: February 2020

Production and consumption-based approaches are primarily used to determine emissions responsibility at industrial and national levels. China is the world’s topmost emitter under both these approaches. Most of the literature especially for China mainly focuses on drivers of direct GHG emissions. This study based on the curvilinear analysis, models best-fit curves between these two emission types and selective driving factors. GDP, GDP/Capita and GNI best-fit curves didn’t support EKC hypothesis for production-based emissions, while for consumption-based emissions their curves are in support of EKC. Population, population density, Urbanization, C02 intensity and urban population agglomeration all had non-linear best-fit curves. While energy use indicated a linear relation with production-based emissions and non-linear with consumption-based emissions. FDI and renewable energy consumption showed a non-linear negative relation with both emissions. Understanding of the non-linear relationship between vital driving factors and China’s emissions under both approaches can help policymakers formulate more informed mitigation policies.
Possible application of solar steam regeneration method in absorption air-conditioning system
Authors: Wu YL , Cheng F , Li XW
Published: February 2020

In recent years, solar absorption air-conditioning system have become an important directions of solar energy utilization. Improving solar energy utilization efficiency can effectively solve the problems of energy crisis. In traditional thermal method, low efficiency suffer from the heat loss and the cost is expensive. To improve solar energy utilization efficiency, a solar steam regeneration method was proposed: with corresponding material structure that can locate solar energy in the event of evaporation and minimize heat loss. The material structure has a high absorption in the solar spectrum, thermally insulating, hydrophilic surfaces and interconnected pores which allows the fluid flow to and from the structure. The solar steam regeneration method can be used in solar absorption air-conditioning system. Models have been developed and some important parameters have been investigated. The influence of concentration and absorbent variety has been analyzed in the experiments. Preliminary testing of the evaporation process has been carried out. It found the solar energy utilization efficiency with solar steam method has potential to further increase by 2 or 3 times. The solar energy utilization efficiency of the solar steam regeneration system approached 46%. That indicates it a promising choice for solar desalination and absorption system.
Stocking density of Rotifera, Hexarthra mira on water quality and production
Authors: Ardi I , Cahyaningsih S , Setiadi E
Published: February 2020

Live feed (rotifer) has an important role in fish seed production. The type of rotifers used in this study is Hexarthra mira. Hexarthra mira is included in monocyclic species which only has sexual periods in autumn and in winters Hexarthra mira is found in a dormant egg. Water quality greatly affects the growth and survival rate. This study was aimed to determine the effect of Hexarthra mira on water quality in culture media on population and production. Different stocking density as a treatments were as followed A) 1 ind/ml; B) 2 ind/ml; C) 3 ind/ml; and D) 4 ind/ml. The results showed that Hexarthra mira density can influence (P<0.05) water quality on the pH parameter. High stocking density (C and D) were significantly higher than that of A and B in term of population and production (P<0.05).
Maximizing production of a male offspring in Moina macrocopa culture through manipulation of rice bran suspension concentration
Authors: Mubarak A S , Jusadi D , Zairin M , Suprayudi M A
Published: February 2020

The quality and quantity of Moina ephippia is influenced by the male and female sexual ratios in the population. The availability of males in the population can increase the number of fertilized eggs and ephippia hatching rates. This study aims to examine the concentration of rice bran suspension in culture to produce the most male offspring, and the quality and quantity of ephippia produced. Moina was cultured for twelve days and from the fifth day the feed is given with different concentrations. The results of this study indicate that, Moina culture using bran suspension feed with a concentration of 0.36-0.48 ml/L starting on the fifth day resulted in the production of low calf offspring but produced the highest total production of male offspring of 818±35 ind/L. Increased production of male offspring increases the production of ephippia containing two eggs but does not increase the degree of hatching significantly.
The Concept of the Right to Management of Coastal Communities in the Regional Autonomy Era: Experience from Community Assistance to Obtain the Right to Manage Sea Cucumbers in Sunsak Bay, East Lombok.
Authors: Wahyono A , Illiyani M
Published: February 2020

The purpose of this research is having experience from around the world shows that fisheries management that produces lasting economic and ecological performance requires the use of fishing rights (rights-based fisheries management/RBFM) integrated as part of a well-designed management system that includes sustainable catch limits and effective monitoring and enforcement. The concept of fishing rights is not a new thing in Indonesia – in fact, many adat (traditional) customs such as sasi, awig-awig, and penglima laut are consistent with fishing rights and have been recognized for centuries. Such customary systems can provide a foundation for a new and effective system of fishing rights specially tailored to the culture, customs and needs of Indonesia. This research is using a qualitative method to identify what exactly happened in a coastal zone area. In reality, the concept of the Right to Management of Coastal Communities in the Regional Autonomy era has never been implemented in regional regulations that explicitly consider the rights needs of local communities. From the case of processing sea cucumber management permits in Sunsak Bay, East Lombok, it shows that local communities have never been a priority in the regional regulations to obtain the right to manage sea cucumbers.
Histopathology of the gill of Vaname Shrimp (Litopenaeus vannamei) infested by protozoan ectoparasite
Authors: Pribadi S R , Sari P D W , Subekti S
Published: February 2020

The aim of this study were to determine the changes of vaname gill which infested by ectoparasites and the correlation between the degree of ectoparasite infestation. The results showed that ectoparasites were found in the gill of vaname shrimp wereZoothamniumsp. andEpistylissp… The degree infestation of the infested gills showed moderate infestations forZoothamniumsp.; moderate and mild infestations forEpistylissp. Histopathology analysis foundhaemorrhagiandhyperplasia. The correlation between the degree of ectoparasite infestation and the changes of vaname gill histopathology infested by ectoparasite showed a positive correlation (r = 0.926), which means that the high degree of the infestation, the higher histopathological changes.
The effect of iron powder as oxygen absorber active packaging on fish oil total oxidation value
Authors: Hidayah E N , Triastuti RR J , Abdillah A A
Published: February 2020

The high content of unsaturated fatty acids causes fish oil can be easily damaged by oxidation. Direct oxygen contact with food is the initial stage of food damage by oxygen. The use of active packaging aims to extend the shelf life, maintain the sensory and quality of the packaged material. Oxygen absorber commonly used in the market is iron powder. This study aims to determine the potential use of iron powder as an active oxygen absorbent material in the packaging in reducing the total value of oxidation of fish oil during the storage period. This study used a completely randomized design with 6 treatments. Fish oil stored in a Polyethylene Terephthalate packaging bottle and placed in a refrigerator at 23°C for 21 days. The addition of iron powder on fish oil packs is 2.7 grams, 5.4 grams, 8.1 grams, and 10.7 grams with negative controls in the form of pure fish oil and positive control in the form of packaged fish oil. The results showed that the addition of 10.7 grams of iron powder as an oxygen absorber to the active packaging of fish oil had a greater ability to reduce the total value of fish oil oxidation during storage (P <0.05).
The occurance of endoparasite helminth on Threadfin Bream (Nemipterus japonicus) from the fish auction place Mayangan, Probolinggo, East Java
Authors: Octatriana D S , Sari P D W , Mahasri G
Published: February 2020

This study aims to determine the occurrence of helminth endoparasites that infect threadfin bream from Fish Auction Place of Mayangan, Probolinggo, East Java, Indonesia. Helminth endoparasite found in the stomach, intestine (mucosa), and threadfin bream’s liver were third-stage larvae of Anisakis simplex type I. The prevalence of Anisakis simplex infected threadfin bream in sizes 10-16 cm was 5.71% and in sizes 17-25 cm was 17.1%. The differences in the prevalence of threadfin bream endoparasites in different sizes did not show a significant difference.
The larasati tilapia (Oreochromis niloticus) fingerling rearing activity in PBIATJanti, Klaten, Central Java: its performance through survival rate
Authors: Prasetya RV , Sutarno  , Santanumurti M B
Published: February 2020

Tilapia (Oreochromis niloticus) is one of the fisheries commodities that are popular with many people. In aquaculture, fingerling is the main component that support the business. This study aimed to provide information on the performance of the rearing techniques of tilapia fingerling so that the information could be used in tilapia hatchery activities. This study was conducted at Loka PBIAT Janti, Klaten, Central Java on December 2018-January 2019. The work method used in this research was descriptive method with supported by primer and ssecondary data, especially survival rate data. With high quality rearing techniques, the survival rate of larasati tilapia fingerling in PBIAT Janti showed high level of 88.81%.
The maggot flour substitution potency (Hermetia illucens) in artificial feed formulation on growth and survival rates of African catfish (Clarias gariepinus)
Authors: Islam M S , Agustono  , Lamid M
Published: February 2020

Catfish (Clariassp.) is one of the important fish commodities, especially in the freshwater cultivation. The study aimed to reveal the substitution of maggot flour (Hermetia illucens) toward the growth and life sustainability of dumbo catfish. The treatments were difference doses of flour maggot substitution: P0 dose (0%) P1 (4%), P2 (6%), P3 (8%) and P4 (10%). The data were analyzed using ANOVA in order to reveal the treatment impact. The differences among treatments were analyzed using Duncan’s multiple range test. After 30 days of cultivation, there were clear differences in the specific growth rate of the catfish after maggot flour substitution. The maggot flour substitution as artificial feeding cultivation of treatment P4 showed the highest growth rate for about 0.3075 g/day. Meanwhile, the specific growth rate of treatment P4 showed 3.4425 %/day. There was no significant difference (P>0.05) between treatments in the term of survival rate, among treatment P0-P4 which was 100%.
The growth, protein content, and fatty acid of catfish meat (pangasius sp.) With the addition of different lysine doses in commercial feed
Authors: Aristasari E , Nur ‘Aini R A , Nopita W , Agustono  , Lamid M , Al-Arif M A
Published: February 2020

Pangasiuscatfish are not able to synthesize amino acids in their bodies so thatPangasiuscatfish need a supply of amino acids such as lysine in their feed. This study aims to find out the effect of lysine addition in commercial feed towards the growth, protein content, and fatty acid ofPangasiuscatfish meat. Total doses of lysine added to the commercial feed are: P0 (0%), P1 (1.2%), P2 (2.2%), dan P3 (3.2%). The results showed that the addition of lysine essential amino acids in commercial feed showed a significantly different effect (P<0.05) on t h e specific growth rate, feed efficiency, feed conversion ratio, Saturated Fatty Acid (SFA), and Monounsaturated Fatty Acid (MUFA) ofPangasiuscatfish meat. On the other hand, Polyunsaturated Fatty Acid (PUFA) showed a very significant difference (P<0.01) with lysine addition dose of 3.2% and no significant effect (P>0.05) on SR. The results of this study showed that lysine addition dose of 1.2% could increase SGR, feed efficiency, and FCR, and lysine addition dose of 2.2% can increase the protein content ofPangasiuscatfish meat also lysine addition dose of 3.2% provides the best performance for fatty acids ofPangasiuscatfish meat.
Identification and prevalence of ectoparasites on the fry of Asian sea bass (Lates calcalifer), white shrimp (Litopenaeus vannamei), and blue swimming crab (Portunus pelagicus)
Authors: Budianto  , Suprastyani H , A’yunin Q , Nadlifah Z
Published: February 2020

The study aims to find out the types of ectoparasites infected in the fry of Asian Sea Bass (Lates calcalifer), White Shrimp (Litopenaeus vannamei), and Blue Swimming Crab (Portunus pelagicus), and to know their prevalence. The method used in this study is an examination of fish samples using the wet mount method. The results showed that the parasites found in the fry of Asian Sea Bass were Trichodina sp., Caligus sp., and Dactylogyrus sp., with the prevalence, were 18.85%, 3.28%, and 1.64% respectively. While, the parasites of Vorticella sp., Epistylis sp and Zoothamnium sp. infected on white shrimp with the prevalence respectively were 2.71%, 0.84%, and 0.17%. Furthermore, on the blue swimming crab was found parasite of Vorticella sp. with the prevalence was 16.47% and Epistylis sp. with the prevalence value was 12.54%.
The effect of Dunaliella salina extract on NFkB expression in Cantang Grouper (Epinephelus fuscoguttatus x E. lanceolatus) exposed by Viral Nervous Necrosis
Authors: Yuwanita Rani , Yuniarti A , Rahardjo SSP , Ayu’nin Q , Madyaratri AM
Published: February 2020

VNN is one of the viruses that can cause death in cantang grouper hatchery in Southeast Asia including Indonesia. The purpose of this research was to find out the expression of NFkB in cantang grouper brain which was exposed by VNN and treated by D. salina extract. Fifty hybrid groupers with 7-9 cm length were stocked in 5 containers with a density of 10 fish/container. Five treatments applied with different D. salina extracts are 0, 250, 300, 350 and 400 mg/kg feed. Feed treatment was given twice a day for 10 days before being challenged with VNN. The expression of NFkB was detected with immunohistochemistry tests and analyzed by immunoreaction software. The result showed that the highest NFkB expression is in treatment 0 mg/kg feed with a percentage of 66%, while the lowest expression is shown in 400 mg/kg feed with a percentage of 31,2%. Different dosages of D. salina have a significant effect on NFκB expression so that it can be concluded that D. salina has the potential as a VNN antiviral candidate in the grouper.