bluuebunny/crossref_metadata_2025 huggingface dataset:
Sociality and moral conflicts
Authors: Márquez Reiter Rosina , Kádár Dániel Z.
Published: March 2022

This paper explores how understandings of sociality influence the way members of two different social groups
discursively animate moral conflicts. It examines how moral conflicts are constructed in life-story interviews by Chinese and
Latin American migrants as they reflect on patterns of sociation with co-ethnics in London. These interviews typify the kind of
conflicts that emerged across a 102 interview database where a discrepancy between expectations of how contextually-situated
interpersonal relations are established and how they should unfold are. The transnational setting that we focus on inevitably
draws our attention to the importance of the larger relational context where interpersonal relations among migrant co-ethnics are
entrenched. In this context, rights and obligations towards one another are often reconfigured to adapt to the circumstances of
the new environment. This paper turns the pragmatic lens on transcultural relations.
The Ethnopragmatics of Jish Arabic-speaking culture
Authors: Habib Sandy
Published: March 2022

The aim of this paper is to describe five speech practices employed by Jish Arabic speakers: greeting a passerby,
forms of address, necessary expressions when talking about death, necessary expressions when praising someone, and necessary
expressions when mentioning entities of “low” value. These five speech practices are described using the Cultural Scripts
Approach, which employs simple, universal language, thus enhancing descriptive accuracy and reducing ethnocentrism.
Objects of remembrance and renewal
Authors: Karas Hilla
Published: March 2022

The relation between translation and experiences of migrants as depicted in fiction has been widely discussed, through the lens of both interlingual translation and cultural translation. The latter refers to the ongoing negotiation and representation of one’s values, symbols, and practices vis-à-vis the local majority group. The link between cultural translation and interlingual translation deserves careful exploration. This article examines the interface between these translational concepts through their intersections with two material diasporic objects in Chitra Banerjee Divakaruni’sQueen of Dreams. The first object is the dream journals, handwritten in Bengali by the late mother of the young protagonist and translated into English by her father. The second object comprises culinary items and the interlingual procedures related to them. The analysis showcases various ways in which interlingual translation may provoke and participate in cultural translation within the context of diasporic literature.
Arthrogenic muscle inhibition manifests in thigh musculature motor unit characteristics after anterior cruciate ligament injury
Authors: Schilaty Nathan D. , McPherson April L. , Nagai Takashi , Bates Nathaniel A.
Published: March 2022

Joint trauma induces a presynaptic reflex inhibition termed arthrogenic muscle inhibition (AMI) that prevents complete activation of muscles. Reduced motor unit (MU) output is a hypothesised mechanism for persistent strength deficits. The objective of this study was to determine MU characteristics of thigh musculature and determine how they change with anterior cruciate ligament (ACL) injury compared to healthy controls. A randomised protocol of knee flexion/extension isometric contractions (10–50% maximal voluntary isometric contraction) was performed for each leg with surface EMG 5‐pin array electrodes placed on the vastus medialis, vastus lateralis, semitendinosus and biceps femoris. Longitudinal assessments for average rate coding, recruitment thresholds and MU action potentials were acquired at 6‐month intervals. With exception of the vastus medialis, all thigh musculature of ACL‐injured demonstrated smaller MU action potential peak‐to‐peak amplitude. For average rate coding, ACL‐injured demonstrated lower coding rates than Controls for the quadriceps (p < .05) and higher rates than Controls for the hamstrings (p < .05). These MU characteristics were different from Controls after ACL reconstruction up to 12 months post‐surgery, yet maximal strength increased during this time frame. As thigh MU characteristics are known across phases of ACL rehabilitation, future studies can assess these patterns of motor control and their potential to determine risk of re‐injury. Further, future rehabilitation can target specific intervention programmes to restore motor control.

Highlights

Motor unit strategies of arthrogenic muscle inhibition are characterised for the first time via decomposed EMG.

Motor unit deficits of thigh musculature persist throughout all phases of ACL rehabilitation, even after return‐to‐sport.

After ACL injury, motor unit sizes at similar recruitment thresholds were smaller than those of healthy controls.
Mumford–Shah regularization in electrical impedance tomography with complete electrode model
Authors: Jauhiainen Jyrki , Seppänen Aku , Valkonen Tuomo
Published: March 2022

In electrical impedance tomography (EIT), we aim to solve the conductivity within a target body through electrical measurements made on the surface of the target. This inverse conductivity problem is severely ill-posed, especially in real applications with only partial boundary data available. Thus regularization has to be introduced. Conventionally regularization promoting smooth features is used, however, the Mumford–Shah (M–S) regularizer familiar for image segmentation is more appropriate for targets consisting of several distinct objects or materials. It is, however, numerically challenging. We show theoretically through Γ-convergence that a modification of the Ambrosio–Tortorelli approximation of the M–S regularizer is applicable to EIT, in particular the complete electrode model of boundary measurements. With numerical and experimental studies, we confirm that this functional works in practice and produces higher quality results than typical regularizations employed in EIT when the conductivity of the target consists of distinct smoothly-varying regions.
Three-dimensional BiVO4-based semiconductor photocathode for high efficiency photo-assisted Zn-iodine redox flow batteries
Authors: Dong Maolin , Wang Yijie , Li Aoshuang , Cheng Chuanwei
Published: March 2022

Aqueous Zn-iodine redox flow batteries have aroused great interest for the features of high capacity, excellent stability, low cost, and high safety, yet the dissatisfying energy efficiency still limits their future advancement. In this work, three-dimensional semiconductor BiVO4 nanoparticles decorated hierarchical TiO2/SnO2 arrays (BiVO4@TiO2/SnO2) were applied as photocathode in Zn-iodine redox flow batteries (ZIRFBs) for the realization of efficient photo-assisted charge/discharge process. The photogenerated carriers at the solid/liquid interfaces boosted the oxidation process of I−, and thus contributed to a significant elevation in energy efficiency of 14.9% (@0.5 mA cm−2). A volumetric discharge capacity was extended by 79.6% under light illumination, owing to a reduced polarization. The photocathode also exhibited an excellent durability, leading to a stable operation for over 80 h with a maintained high energy efficiency of ∼90% @0.2 mA cm−2. The research offers a feasible approach for the realization of high-energy-efficiency aqueous Zn-iodine batteries towards high-efficiency energy conversion and utilization.
pH-responsive and CD44-targeting polymer micelles based on CD44p-conjugated amphiphilic block copolymer PEG-b-HES-b-PLA for delivery of emodin to breast cancer cells
Authors: Cheng Kai , Zhou Jie , Zhao Yujie , Chen Yu , Ming Lan , Huang Da , Yang Rui , Lin Zhenyu , Chen Daozhen
Published: March 2022

Herein, an amphiphilic block copolymer CD44-targeting peptide-conjugated polyethylene glycol-block-hydroxyethyl starch-block-poly (L-lactic acid) (CD44p-conjugated PEG-b-HES-b-PLA) are synthesized, which could self-assemble into the pH-responsive and CD44-targeting polymer micelles against breast cancer cells MDA-MB-231. Emodin (Emo) is a natural anthraquino with pharmacological activities in anti-tumor effects. However, Emo suffers from poor water solubility, low biocompatibility, rapid systemic elimination, and off-target side effects, resulting in unsatisfactory treatment outcomes. Nanotechnology-based drug delivery systems have proven great potential for cancer chemotherapy. The constructed polymeric micelles Emo@CD44p-PM have exhibited an average size of 154.5 ± 0.9 nm characterized by DLS and TEM. Further, the Emo@CD44p-PM have effective Emo-loading capacity, good thermal stability, and pH responsiveness. Intracellular uptake study shows the enhanced cellular internalization of Emo@CD44p-PM due to the increased exposure of CD44p enhances the cellular internalization of Emo@CD44p-PM effectively. Furthermore, the in vitro results showed Emo@CD44p-PM has been observed good biocompatibility and anti-tumor effects. Therefore, the polymeric micelles Emo@CD44p-PM provide a promising delivery strategy of targeted therapy for breast cancer.
Simple beam hardening correction method (2DCalBH) based on 2D linearization
Authors: Martinez Cristobal , Fessler Jeffrey A , Desco Manuel , Abella Monica
Published: March 2022

Objective. The polychromatic nature of the x-ray spectrum in computed tomography leads to two types of artifacts in the reconstructed image: cupping in homogeneous areas and dark bands between dense parts, such as bones. This fact, together with the energy dependence of the mass attenuation coefficients of the tissues, results in erroneous values in the reconstructed image. Many post-processing correction schemes previously proposed require either knowledge of the x-ray spectrum or the heuristic selection of some parameters that have been shown to be suboptimal for correcting different slices in heterogeneous studies. In this study, we propose and validate a method to correct the beam hardening artifacts that avoids such restrictions and restores the quantitative character of the image. Approach. Our approach extends the idea of the water-linearization method. It uses a simple calibration phantom to characterize the attenuation for different soft tissue and bone combinations of the x-ray source polychromatic beam. The correction is based on the bone thickness traversed, obtained from a preliminary reconstruction. We evaluate the proposed method with simulations and real data using a phantom composed of PMMA and aluminum 6082 as materials equivalent to water and bone. Main results. Evaluation with simulated data showed a correction of the artifacts and a recovery of monochromatic values similar to that of the post-processing techniques used for comparison, while it outperformed them on real data. Significance. The proposed method corrects beam hardening artifacts and restores monochromatic attenuation values with no need of spectrum knowledge or heuristic parameter tuning, based on the previous acquisition of a very simple calibration phantom.
Gas sensing performances of commercial carbon fibers functionalized by NiO/SnO2 composite
Authors: He Jing , Zhao Zhen , Zhang Lei , Jiao Wanli
Published: March 2022

Commercial carbon fibers (CFs) were functionalized with NiO/SnO2 composite powders via a simple liquid phase deposition method followed by heat treatment and the influences of CFs content on the micro-structure and gas sensing performances of the CFs/NiO/SnO2 gas sensor were investigated. The results indicate that the distinctive one-dimensional CFs overlapped with each other, forming a large number of pores inside the CFs/NiO/SnO2 composite, which increases the effective reaction area between sensitive materials and target gases greatly. The CFs/NiO/SnO2 gas sensor with 0.5 wt% CFs exhibits a good sensitivity, selectivity and excellence response-recovery characteristic to formaldehyde at lower operation temperature of 170 °C. Notably, the detectable concentration of HCHO is as low as 1 ppm, indicating a certain application prospect in formaldehyde detection. And the electronic transmission bridge mechanism is performed to explain the gas sensing mechanism, which plays a certain role in the functional application of CF.
Bayesian vs frequentist: comparing Bayesian model selection with a frequentist approach using the iterative smoothing method
Authors: Koo Hanwool , Keeley Ryan E. , Shafieloo Arman , L'Huillier Benjamin
Published: March 2022

We have developed a frequentist approach for model selection which determines the consistency between any cosmological model and the data using the distribution of likelihoods from the iterative smoothing method. Using this approach, we have shown how confidently we can conclude whether the data support any given model without comparison to a different one. In this current work, we compare our approach with the conventional Bayesian approach based on the estimation of the Bayesian evidence using nested sampling. We use simulated future Roman (formerly WFIRST)-like type Ia supernovae data in our analysis. We discuss the limits of the Bayesian approach for model selection and show how our proposed frequentist approach can perform better in the falsification of individual models. Namely, if the true model is among the candidates being tested in the Bayesian approach, that approach can select the correct model. If all of the options are false, then the Bayesian approach will select merely the least incorrect one. Our approach is designed for such a case and we can conclude that all of the models are false.
Cosmic birefrigence: cross-spectra and cross-bispectra with CMB anisotropies
Authors: Greco Alessandro , Bartolo Nicola , Gruppuso Alessandro
Published: March 2022

Parity-violating extensions of Maxwell electromagnetism induce a rotation of the linear polarization plane of photons during propagation. This effect, known as cosmic birefringence, impacts on the Cosmic Microwave Background (CMB) observations producing a mixing ofEandBpolarization modes which is otherwise null in the standard scenario. Such an effect is naturally parametrized by a rotation angle which can be written as the sum of an isotropic componentα0and an anisotropic oneδα(n̂). In this paper we compute angular power spectra and bispectra involving δα and the CMB temperature and polarization maps. In particular, contrarily to what happens for the cross-spectra, we show that even in absence of primordial cross-correlations between the anisotropic birefringence angle and the CMB maps, there exist non-vanishing three-point correlation functions carrying signatures of parity-breaking physics. Furthermore, we find that such angular bispectra still survive in a regime of purely anisotropic cosmic birefringence, which corresponds to the conservative case of havingαo= 0. These bispectra represent an additional observable aimed at studying cosmic birefringence and its parity-violating nature beyond power spectrum analyses. They provide also a way to perform consistency checks for specific models of cosmic birefringence. Moreover, we estimate that among all the possible birefringent bispectra,〈δαTB〉and〈δαEB〉are the ones which contain the largest signal-to-noise ratio. Once the cosmic birefringence signal is taken to be at the level of current constraints, we show that these bispectra are within reach of future CMB experiments, as LiteBIRD.
Transition from the ballistic to the snake regime of a femtosecond laser through a turbid medium via Monte Carlo simulation
Authors: Ren Yuhu , Jian Jimo , Tan Wenjiang , Wang Jing , Chen Tao , Xia Wei
Published: March 2022

We study the transition from the ballistic to the snake regime of a femtosecond laser through a turbid medium via Monte Carlo simulation. The results show that the transition depth of the ballistic to the snake regime of a femtosecond laser through a turbid medium is close to the surface of the scattering volume. The transition process depends on the scattering coefficient of the turbid medium. Unlike the decay of the intensities of the ballistic photons governed by Beer–Lambert law, the intensities of the snake photons first increase with an increase of the thickness of the turbid medium and then decrease with a further increase of the thickness, for all scattering coefficients ranging from 10 to 20 cm−1. Further, we study the balance point of the intensity of the ballistic photons and the snake photons, which also depends on the scattering coefficient and the half-acceptance angle. The transmission depth corresponding to the transition balance point decreases with an increase of the scattering coefficient. In addition, for the transition balance point, the product of the transmission depth and scattering coefficient is approximately a constant (∼2) for a specific simulation configuration.
Low-intensity-noise single-frequency CW 1080 nm laser by employing a laser crystal with the small stimulated-emission cross section
Authors: Yang Huiqi , Wang Hailong , Song Jiaqi , Jin Pixian , Xu Xiaodong , Xu Jun , Lu Huadong
Published: March 2022

An effective approach to obtain a single-frequency laser with low intensity noise is presented in this paper, which is implemented by employing a gain medium with the small stimulated-emission cross section (SECS). When the adopted Nd:YAP (Nd:YAlO3) gain medium with SECS of 4.6×10−19 cm2 is replaced by Nd:CYA (Nd:CaYAlO4) gain medium with SECS of 1.04×10−19 cm2, the frequency of measured intensity noise reached shot noise limit obviously reduces from 2.49 to 1.5 MHz, which agrees well with the theoretical predictions. On this basis, a single-frequency continuous-wave (CW) Nd:CYA laser with low intensity noise is first achieved. The attained output power of the Nd:CYA laser is 1.12 W. The achieved single-frequency CW 1080 nm laser will satisfy the requirements of the squeezed and entangled light generation.
Study on the process and parameters optimization of Irregular thin-walled Aluminium profiles extrusion with double-hole dies
Authors: Miao Cong , Jiang Tian , Huang Lei
Published: March 2022

In this paper, the orthogonal design method is used to comprehensively consider the influence of extrusion temperature, extrusion speed, extrusion billet, die structure and other factors on the uniformity of the extruded metal flow. The average extrusion force and the average maximum equivalent stress are the criteria, and the best process plan for the extrusion of the double-hole die aluminum profile is selected. At the same time, this experiment also provides theoretical guidance for the actual extrusion production of the porous model material.
Ultra-high molecular weight polyethylene: preparation and applications
Authors: Liu Zhaoxiang , Zhang Haochen
Published: March 2022

Ultra-high molecular weight polyethylene is a kind of popular engineering material because of its unique properties stemming from high molecular weights. Nowadays, the preparations and applications of this type of material are widely researched. This review mainly focuses on the preparation of ultra-high molecular weight polyethylene using three types of typical catalysts (heterogeneous Ziegler-Natta catalysts, Fujita’s catalysts and α-Diimine Nickel (II) catalysts) and applications in two significant areas (bulletproof membranes and lithium-ion batteries). Ziegler-Natta catalysts and Fujita’s catalysts favor the synthesis of linear ultra-high molecular weight polyethylene, but α-Diimine Nickel (II) catalysis favors β-hydride elimination which leads to branched products. Changes in steric, composition, activators, temperature and pressure will affect the tendency towards different mechanisms and influence structures and properties of final products.
Shape Evaluation Method for Leading and Trailing Edges of Aero-engine Blade
Authors: Wang Jingwen , Zhang Xu
Published: March 2022

The shape of the leading and trailng edges of aero-engine blades has a significant influence on its aerodynamic performance. At present, the method of manual inspection based on the standard pattern is mainly used to analyze the shape of the leading, and trailing edges, which has the problems of low efficiency, poor repeatability and inconsistent evaluation results. An automatic shape evaluation method based on eigenvalues is proposed in this paper. Firstly, the blade profile and its mean camber line are segmented and fitted. Then, evaluation indexes are given for the five unqualified edge shapes respectively according to the curvature characteristics and profile variation characteristics. Finally, the shape of the blade edge is evaluated with the eigenvalues calculated. Experiments show that the proposed method can realize the automatic shape evaluation of blade leading and trailng edges, and can adapt to different types of blades and different acceptance standards, which effectively improves the efficiency of blade profile quality inspection.
Research on process route matching mechanism based on similarity calculation
Authors: Zhai Shulei
Published: March 2022

Enterprises accumulate successful process route cases in actual production activities. This paper gives a case-based process route matching mechanism by determining process route feature attribute weights and similarity calculation methods to achieve efficient design of process routes with new requirements.
Robot tangram assembly line based on vision
Authors: Qin Shuo
Published: March 2022

With the development of smart manufacturing technology, the cost of industrial robots is reduced and reliability enhanced. Applying several robots for automated production lines will be more popular. The extended application of industrial robots can improve the level of automation in industrial production and break the boundaries of technology and costs. The project focuses on "Tangram assembly line". This project takes "tangram assembly line" as the research object, and uses the kinematics model and path planning method of industrial robots to complete the identification, assembly and disassembly of tangram. "Tangram" simulated industrial products, based on two-dimensional vision to carry out image processing, identify the position and Angle of the object information, through writing robot program, the final completion of the object splicing and disassembly work. CoppeliaSim Edu software simulation results prove that the project can be efficient, high quality to complete the expected task.
Temperature Indicators Field Calibration Method Based on an Integrated Thermostat with Cold Junction Compensation
Authors: Wu Jingwen , Ma Zhou , Gao Wei , Ma Wei , Zhu Chenbin , Zhong Yifeng
Published: March 2022

By designing a field calibration device for temperature indicators, this paper proposed a method for field calibration of indicators based on an integrated thermostat with cold junction compensation to overcome the current problems with conventional methods, which include long duration before constant temperature at cold junction, non-portable design, low accuracy of temperature compensation. The thermostat integrated in the device can achieve rapid thermal control while remaining portable based on the miniaturized structure that the thermocouple terminals can placed in the thermostat and an algorithm for thermostat control. After error analysis and experimental verification, reliable results were obtained to prove that this method has the advantages of portability and efficiency compared with conventional methods.
Mine track obstacle detection method based on information fusion
Authors: Liu Biao , Tian Bihao , Qiao Junchao
Published: March 2022

As an important part of the coal mine transportation system, coal mine underground rail transportation undertakes the core transportation task of coal mine underground. Its safe and efficient operation is directly related to the efficiency of coal mine production and transportation. In view of this, this paper proposes a mine track environmental obstacle detection system which integrates camera and Lidar information to realize real-time automatic detection of obstacles in front of the underground track mine cart. The specific research results are as follows: first of all, a point cloud clustering algorithm for the mine environment is designed to extract the obstacle information, and then the YOLOv5 algorithm is used to identify the obstacle information in the image. Finally obstacle information from image and point cloud are fused at the decision-level. The obstacle detection method proposed in this paper can be successfully identified to meet the requirements of the obstacle object detection function of the rail vehicle.
A topology identification algorithm and device implementation based on smart switch core board
Authors: Huo Chao , Wang Yutuo , Mu Di
Published: March 2022

Due to the large scale, large number of equipment and complex structure of distribution network, relying on manual maintenance of distribution network topology model has a huge workload and poor intuitiveness of model information, which is difficult to ensure the integrity and correctness of distribution network topology model. This paper presents an algorithm to improve the adaptability of multi scene feature signal recognition based on the smart switch core board, and designs the local communication interaction flow design based on topology recognition function from the station area intelligent terminal to the smart switch. The identification technology combining power frequency distortion and characteristic current is adopted. In the identification process, there is no need for the master station to participate in analysis and control. Multiple stations in the same community can be carried out concurrently to automatically identify the connection relationship between distribution network equipment and line topology, and dynamically build a clear and complete household transformer relationship and distribution network topology to help operation inspection, marketing The lean management level of distribution network such as regulation and control has been improved.
Research of Wire-driven Parallel Lower Limb Rehabilitation Robot
Authors: Zhao Jie , Zhou Xu , Yang Xianun , Yao Zhiming
Published: March 2022

To realize the lower limb rehabilitation training with multiple-degree-of-freedom, a wire-driven parallel lower limb rehabilitation robot with six wires is designed. The static and dynamic models of the parallel robot are established, and the feasible wrench workspace of the robot is calculated based on the motion law of lower limb rehabilitation in lying posture. And the motion trajectory of a wire-driven robot is planned according to the human lower limb D-H model. The variation laws of wire length and speed are calculated by MATLAB simulation, which verifies the feasibility of the wire-driven parallel lower limb rehabilitation robot.
The analysis of Influencing Factors of Morie Fringe based on 3D Imaging Simulation and experiment measurement
Authors: Feng Jingxuan , Huang Jinghan , Huang Yikai
Published: March 2022

We propose a three-dimension imaging construction scheme based on Moire fringe and investigate the influencing factors for the fringe generation. Specifically, the principle of the Moire fringe is introduced and a corresponding proof-of-principle experiment is designed and accrued out accompanying with corresponding programming codes subsequently. Four-step phase-shift method and Fourier transform are applied in the experiment to obtain the phase information. Afterwards, the Fourier transformation is added up to a model that shows the surface of the object in terms of the unwrap the phase package. According to the results, the ability of Moire fringe to image is confirmed, which pave a path for various applications, e.g., medical treatment and cryptology.
A Starry Byte — proton beam measurements of single event upsets and other radiation effects in ABCStar ASIC Versions 0 and 1 for the ITk strip tracker
Authors: Basso M.J. , Fernández-Tejero J. , Gallop B.J. , Greig G. , John J.J. , Keener P.T. , Krizka K. , Leitao P.V. , Norman B. , Phillips P.W. , Poley L. , Sawyer C. , Stack T.L. , Stucci S. , Trischuk D.A. , Warren M.
Published: March 2022

Single Event Effects (SEEs) — predominately bit-flips in
electronics caused by particle interactions - are a major concern
for ASICs operated in high radiation environments such as ABCStar
ASICs, which are designed to be used in the future ATLAS ITk strip
tracker. The chip design is therefore optimised to protect it from
SEEs by implementing triplication techniques such as Triple Modular
Redundancy (TMR).

In order to verify the radiation protection mechanisms of the chip
design, the cross-section for Single Event Upsets (SEUs), a
particular class of SEEs, is measured by exposing the chip to
high-intensity particle beams while monitoring it for observed SEUs.

This study presents the setup, the performed measurements, and the
results from SEU tests performed using the latest version of the
ABCStar ASIC (ABCStar V1) using a 480 MeV proton beam.
Classification of pulsar signals using ensemble gradient boosting algorithms based on asymmetric under-sampling method
Authors: Tariq I. , Qiao M. , Wei L. , Yao S. , Zhou C. , Ali Z. , Azeem S.W. , Spanakis-Misirlis A.
Published: March 2022

The detection of pulsar signals is a highly intensive
task. Numerous artificial intelligence (AI) and machine learning
techniques (ML) have been proposed to classify pulsar and non-pulsar
signals. While existing machine learning techniques improve
classification efficiency, these methods are limited when it comes
to dealing with large volumes of astronomical data, the extreme
problem of class imbalance , and the polarization of high recall and
precision. In this paper, to accurately classify pulsar and
non-pulsar signals, extreme Gradient Boosting (XgBoost), and Light
Gradient Boosting Machine (LightGBM) algorithms based on an
asymmetric undersampling method are proposed. Firstly, the proposed
model uses an asymmetric undersampling technique that divides the
benchmark datasets into 75 subsets for the LOFAR Tied-Array All-Sky
Survey (LOTAAS-1) and 9 subsets for the High Time Resolution
Universe Pulsar Survey (HTRU2), eluding the class imbalance
problem. Finally, XgBoost and LightGBM algorithms have been adopted
for each new data subset, with a majority voting classifier being
used to integrate the output of proposed models against each
subset. Results of the proposed method were compared to
state-of-the-art baseline models, which showed that our models
significantly performed better than existing methods and gained
almost 2% and 2.5% better F-score and precision results,
respectively.
Centennial-scale variability of sea-ice cover in the Chukchi Sea since AD 1850 based on biomarker reconstruction
Authors: Bai Youcheng , Sicre Marie-Alexandrine , Ren Jian , Jalali Bassem , Klein Vincent , Li Hongliang , Lin Long , Ji Zhongqiang , Su Liang , Zhu Qingmei , Jin Haiyan , Chen Jianfang
Published: March 2022

Paleo-climate proxy records documenting sea-ice extent are important sources of information to assess the time of emergence and magnitude of on-going changes in the Arctic Ocean and better predict future climate and environmental evolution in that region. In this study, a suite of geochemical tracers including total organic carbon (TOC), total nitrogen (TN), carbon/nitrogen ratio (C/N), stable isotope composition of organic carbon and nitrogen (δ
13C, δ
15N), and phytoplankton biomarkers (highly branched isoprenoids (HBIs) and sterols) were measured in a marine sediment core to document the sea-ice variability in the Chukchi Sea since the beginning of the Industrial Era. The downcore profile of the sea-ice proxy HBIs suggests a transition from extensive sea ice in the late 19th century to Marginal Ice Zone (MIZ) in AD 1930–1990s and then moderate sea-ice cover since 1990s. Rising of all HBI abundances between AD 1865–1875 indicate a transient retreat of summer ice edge off the shelf followed by a return to near-perennial sea ice till 1920–1930 as revealed by the absence of HBIs and brassicasterol. Sea ice retreat occurred again in AD 1920–1930 and followed by colder decades in 1940s–1960s before a sustained decline since the 1990s. The downcore profile of C/N, δ
13C of organic matter and sterols indicates a gradual increase of terrigenous inputs accelerating during the most recent decades likely due to enhanced fluvial run-off and sediment transport by sediment-laden sea ice. Concomitantly, increasing δ
15N values suggest limited nutrient utilization due to enhanced stratification of the surface ocean caused by increased freshening. The role of the Arctic oscillation (AO), the Pacific decadal oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) are discussed to explore potential drivers of the observed sea-ice changes.
Increasing linseed (Linum usitatissimum) meal potential as feed ingredients and source of omega-3 and -6 fatty acids for broilers through processing technology
Authors: Sjofjan O , Adli D N , Febrianingrum N , Ghozi H M , Yudatama M F A , Faalah M , Natsir M H , Nuningtyas Y F
Published: March 2022

Soya bean meal often used in feeding livestock has environmental issues yearly. One of the efforts to improve the quality of broilers meat as a functional food is the modification process using ingredients such as linseed consisting of high Omega-3 and capable of enhancing feed quality. Therefore, this research aimed to investigate the effect of replacing soya bean meals with linseed meals on broilers. A total of 200 broilers with 7.44 ± 3.14 g BW were allotted to 5 dietary treatments (unsexed) with 4 replicates each. These dietary treatments were NC (negative control; maize-rice bran-meal based diet), LSM2.5 (Soya bean meal replacement with 2.5% modified LSM), LSM5.0 (Soya bean meal replacement with 5.0% modified LSM), LSM7.5 (soya bean meal replacement with 7.5% modified LSM), and LSM10 (soya bean meal replacement with 10% modified LSM). The result showed no significant difference (p >0.05) in the relative organ weights but the modified LSM had a significant difference (p < 0.05) in the treatment performed w a microwave. Furthermore, carcass quality was reflected in the intestinal quality and digestibility of the broiler. In summary, the increase of linseed meal potential through processing technology had a positive effect on broiler meat.
Study of embryo transfer recipient factors based on the corpus luteum, endometrial thickness, and hormone levels in beef cattle in Yogyakarta, Indonesia
Authors: Budiyanto A , Ariwati D L , Priyo T W , Maryatmo M A , Abimata P A
Published: March 2022

Embryo transfer is a reproductive technology that shortens the generation interval between selection steps by producing a high percentage of donor progeny. The success of post­transfer pregnancy determines the success of the embryo transfer, but the implantation rate in Indonesia is not yet optimal; measures must be taken to improve the condition of the acceptor. Therefore, this study was carried out to determine the diameter of the corpus luteum and endometrial thickness from local breed, age, parity status, body condition score (BCS) with its effect on progesterone levels and to determine the standard size of the corpus luteum and endometrium. Furthermore, the selected cows were in normal reproductive status. Therefore, they were rectally cycled, and ultrasound (USG) was used to measure the corpus luteum diameter and the wall thickness of the endometrium wall. In addition, blood samples were taken from 7-day-old cows in the oestrus cycle to determine the level of the hormone progesterone using the ELISA test. Of the 15 beef cattle, 9 are PO cattle, and 6 are crossbred cows. The results showed that endometrial thickness was a factor that had a positive correlation with progesterone levels. The highest level of progesterone in crossbreed cows of 12.9 ng/ml resulted in an endometrial thickness of 9 mm, while the highest level of progesterone in PO cattle with 13.8 ng/ml resulted in an endometrial thickness of 5 mm with the optimal standard of the best progesterone levels for PO beef cattle and crossbreed recipients are cows with endometrial thickness > 6 mm, 5 years old, and parity 2x calf. In conclusion, the reproductive status of the ovaries, corpus luteum, progesterone levels, and endometrial thickness are factors that must be considered in increasing the success rate of embryo transfer.
Lipogenesis in Sentul chickens of starter phase inhibited by irradiated chitosan
Authors: Kharazi A Y , Latipudin D , Suwarno N , Puspitasari T , Nuryanthi N , Mushawwir A
Published: March 2022

This experiment explores the effect and optimal levels of irradiated Chitosan (IrC) in the diet on lipogenesis and its effect on the blood lipid profile of the Sentul Chickens starter phase. The IrC was generated from shrimp waste chitin, and in addition to being a feed supplement, it has the potential to reduce environmental pollution. Furthermore, Sentul chickens were 100 samples, reared from 0-8 weeks, and the observed variables included triglyceride, cholesterol, and blood Non-Esterified Fatty Acid (NEFA). A completely randomized design (CRD) experimental method was used with four treatments and five replications. The treatments were K0 = basal diet without IrC, K1 = 300 ppm IrC in basal diet, K2 = 350 ppm IrC in basal diet, K3 = 400 ppm IrC in the basal diet. Meanwhile, the samples used for analysis were 40 individuals from the research object based on the average body weight of the population. The results showed that the provision of rations containing IrC (K1) 300 ppm, (K2) 350 ppm, and (K3) 400 ppm had a significant effect (P<0.05) on triglyceride, cholesterol, and NEFA profile in Sentul Chickens blood of the starter phase.
A case study on the opinion of smallholder cattle farmers regarding biosecurity policy in Bone Regency, South Sulawesi Province
Authors: Lestari V S , Rahardja D P , Sirajuddin S N
Published: March 2022

Biosecurity is a measure used by cattle farmers in the prevention of infectious diseases transmission to provide healthy meat to consumers while remaining eco-friendly. Therefore, this study aims at determining the opinions of smallholder cattle farmers regarding biosecurity policies in Bone Regency. This study was conducted in 2021, with a total of 115 beef cattle farmers selected through purposive sampling. The primary and secondary data sources were obtained by observation and in-depth interviews using a questionnaire. Also, the data were processed using the SPSS software version 23 and analyzed descriptively. The results show that biosecurity is essential (79.13%) and should be implemented to improve animal health (47.83%). In addition, 85.22% of beef cattle farmers agreed to apply biosecurity with the aid of proper guidance while 93.04% were willing to join the animal health service.
Community empowerment based on organic fertilizer production technology in Pare Village, Selogiri District, Wonogiri Regency
Authors: Suwarto S , Rahayu E T , Hanifa A , Emawati S , Swastike W
Published: March 2022

Pare Village, Selogiri District, Boyolali Regency, has a high enough beef cattle, which serves as an opportunity for the community to be developed through an improved economy from beef cattle fattening, both from the main product in the form of meat and the by-products in the form of livestock manure. The utilization of livestock manure into organic fertilizer does not only increases income but also creates environmentally friendly conditions. This study aims to increase the knowledge and skills of farmers through training on the production technology of organic and liquid fertilizers in order to increase their income. It was carried out on May 20th to 16th September 2021 and the method used include Focus Group Discussions (FGD), counseling, training on production technology of organic and liquid fertilizers as well as demonstration plots of both. The materials used in processing organic fertilizers include livestock manure, urea, stardec, and a dolomite while liquid fertilizers include urine empon-empon (galangal, temu ireng, ginger, kencur, turmeric, sambiloto, garlic, dlingo and bengle), molasses and EM4. The result showed an increase in the knowledge of farmers after attending extension and training on the manufacture of these fertilizers which helps to increase the welfare of the community. In conclusion, people in Pare become more empowered with the application of organic fertilizer production technology such that there is an increase in community income.
Farmers attitudes to organic rice cultivation at the industrial revolution era
Authors: Suminah S , Sundari M T , Wijianto A , Rusdiyana E
Published: March 2022

The agricultural sector is faced with various obstacles, including environmental damage caused by the excessive use of fertilizers and pesticides. In the industrial revolution 4.0, agricultural sector actors need to adapt to change by implementing organic farming. Therefore, this research aims to determine the factors influencing farmers’ attitudes towards organic rice cultivation. This was conducted in Mojogedang District, as the center of organic rice. Data were collected through interviews and observation and analyzed using multiple regression and qualitative information. The results showed that 51.33% of farmers lacked confidence in the certainty of organic rice prices, 66.67% had access to mass media related to organic farming, 61.33% had accepted organic farming interventions, and 76% had good attitudes towards organic rice cultivation. The attitude of farmers in organic rice cultivation is influenced by belief in price certainty and intervention from various parties, while access to mass media has no effect. In order for farmers to have a good attitude towards organic rice cultivation, intervention from extension workers in the form of education, training, and comparative studies related to organic rice cultivation and marketing is needed.
Factors affecting the income of organic shallot farmers in Boyolali Regency
Authors: Suswadi S , Prasetyo A
Published: March 2022

The consumption of organic products has become a new trend that is more environmentally friendly, healthy, and at better prices advantageous for farmers. Furthermore, organic farming reduces the greenhouse effect and global warming by absorbing carbon into the soil. This study aimed to determine the income factors of organic shallot farming and the cultivation efficiency in Boyolali Regency using the descriptive method. A simple random sampling technique was used to obtain the sample, consisting of organic shallot farmers in Cepogo District, Boyolali Regency. The R/C Ratio measured the efficiency of Shallots farming, and multiple linear regression analysis was used to determine the factors that affect farmers’ income. The results showed that the efficiency of organic shallot farming was very good, as evidenced by the R/C ratio of 2,34. Farmers produce their farm inputs to reduce production costs. Factors that affect the income of organic shallot farming include land area, seeds, organic fertilizers, pesticides, and labor. Furthermore, they need improvements on the timeliness of application and how to apply a liquid organic fertilizer to create efficiency in cultivating shallots.
Effect of extremely low frequency (ELF) magnetic field on processing and quality of local fresh milk
Authors: Saleh A S , Wibisono Y , Subagja H
Published: March 2022

This research aims to examine the effect of exposure to extremely low frequency (ELF) magnetic fields on the processing and quality of fresh milk. Furthermore, an environmentally friendly technology that does not require LPG gas or fuel was generated for handling and processing fresh milk. This research consisted of two treatments, such as the type of milk and storage time, which included 0, 5, and 19 hours. Each treatment combination was replicated three times, and the parameters observed were pH as well as the number of microbes. The result shows that exposure to ELF of 801 μT waves for 90 minutes affects the type of milk and total microbes. In addition, the pH value decreased with increasing storage time, while the total microbial value increased with increasing storage time. The use of ELF waves extends shelf life and has the potential for environmentally friendly processing of fresh milk without the use of LPG and fuel.
The effect of pH and tanning agents on the quality of sheep leather using the ecoprinting dyeing method
Authors: Maryati T , Anggraini T , Nugroho T
Published: March 2022

Leather eco-printing is an eco-friendly dyeing technique performed by transferring colors from plants. Therefore, this study aims to investigate the effect of pH and tanning agents on the quality of sheep leather using eco-printing dyeing method to produce an eco-friendly animal product. A total of 30 sheep crust leather were randomly assigned using a 2 × 5 factorial arrangement, with three replications. The first factor was the leather tanning agent namely vegetable and mineral, while the second was pH of 5, 6, 7, 8, and 9. The plants used in eco-printing were Kenikir (Cosmos caudatus) leaves, Kenikir flowers, Jatropha (Jatropha curcas) leaves, Ganitri (Elaeocarpus ganitrus) leaves, Ferns (Pteridophyta) leaves, Lanang (Oroxylum indicium) leaves and Teak (Tectona grandis) leaves. Color sharpness and fastness data were collected and then analyzed using a two-way analysis of variance followed by Duncan’s Multiple Range Test. The results showed interactions between the tanning method and pH (P = 0.01) on color sharpness, with the highest values produced in mineral leather processed under pH 9. Mineral leather had higher color sharpness and fastness values with P < 0.05 compared to vegetables. Furthermore, the pH significantly affected sharpness (P < 0.01) but had no effect on colorfastness. Based on the results, the combination of mineral tanning with a pH of 9 can be applied for eco-printing to produce the best sheep leather product.
Biogas purification using the biosludge-dolomite mixture to improve methane gas purity in waste management practicum
Authors: Sulistyo S , Yanti Y
Published: March 2022

Biogas extracted from cattle dung waste not only tackles soil and air pollution but also produces methane, which is used in households as fuel for water heaters, cooking stoves, or cloth dryers. The production of biogas also supports a zero-waste approach, which targets eliminating waste by reducing, reusing, and recycling. Therefore, it is necessary for biogas extracted from cow dung waste to be purified and packaged for more efficient use and easier marketing. This study aims to determine the effects of dolomite and biosludge adsorbent in the purification of biogas. Furthermore, the biogas was extracted at 15, 30, 45, 60, 90, 120, 150, and 180 minutes with 3 repetitions during each time period, and methane gas quality tests were carried out in the Balingtan Laboratory, Jaken, Pati, Central Java, Indonesia. Data obtained were analyzed using the RStudio computer application, and the result reveals that the average values for the production of CH4, CO2, and N2O were 3.8 × 105(80.9%) ppm, 8.9 × 105(19.1%) ppm, and 9.0 × 102ppb (0.0002%) respectively. Therefore, the differences in the dimensions of pipes and extraction time had no significant effect on the amount of CH4, CO2, and N2O gas produced.
Transmission lines comparison: case of the actual three-phase against a potential nine-phase systems
Authors: Pouabe Eboule P S , Pretorius JHC , Mbuli N
Published: March 2022

The importance of power systems in our daily life is no longer needed to be demonstrated and the companies that practice in this field are among the largest in the world. Today, all these companies would like to transmit more electricity to consumers but are sometimes forced to build several lines in parallel with the main transmission line. Using this solution is not without impact for biodiversity and this way of doing has some limitations. This study compares the results obtained from four different types of transmission lines in order to optimize power transfer. Those lines are characterized by their power transmitted and their number of phase as well as their length. Lines 1 and Line 2 have 120 km length and carry 400 kV respectively in three-phase system for line 1 and in nine-phase system for line 2 while lines 3 and 4 have 600 km length and carry 750 kV respectively in three-phase system for line 3 and nine-phase system for line 4. Results show that the increase in the number of phases could help supplying up to eight and six times respectively for short and long transmission lines more load connected to the grid.