bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental field study on a full-scale road piezoelectric energy harvester
Authors: Wang Jun , Qin Xiangzhen , Liu Zhiming , Shi Kuang , Ding Guangya , Li Xiaobing , Cai Guojun 
Published: February 2022

Abstract
We designed a full-scale road piezoelectric energy harvester (FPEH) and performed field tests to evaluate its electrical performance under various traffic loads. Based on the open-circuit voltage waveform of the FPEH, its electrical output characteristics were established given different axle loads and vehicle speeds. New circuits were designed that can be used to identify the wheel track and wheel position of the vehicle and to determine the horizontal transfer characteristics of the vehicle vibration energy on the road surface. Two off-board circuits were designed for different applications of the FPEH. A parallel circuit rectifies 192 transducer units separately and then connects them in parallel. At a resistance load of 0.4 kΩ, vehicle speed of 60 km h−1, and axle load of 1295 kg, this circuit generated a maximum output of 42 V, 104 mA, and 4338 mW. A single connection circuit rectifies eight transducer units separately and then connects them in parallel to form a total of 24 groups. The electrical performance was evaluated though finite element analyses and field tests. This research is the first to design and fully characterize the electrical performance of a FPEH. The proposed FPEH design significantly improves the driving-load vibration energy harvesting efficiency and produces a watt-level output which is a higher energy output than prior research. The findings obtained herein provide a good foundation for the application of road piezoelectric power generation technology.
An infinite set of integral formulae for polar, nematic, and higher order structures at the interface of motility-induced phase separation
Authors: Lee Chiu Fan 
Published: February 2022

Abstract
Motility-induced phase separation (MIPS) is a purely non-equilibrium phenomenon in which self-propelled particles phase separate without any attractive interactions. One surprising feature of MIPS is the emergence of polar, nematic, and higher order structures at the interfacial region, whose underlying physics remains poorly understood. Starting with a model of MIPS in which all many-body interactions are captured by an effective speed function and an effective pressure function that depend solely on the local particle density, I derive analytically an infinite set of integral formulae for the ordering structures at the interface. I then demonstrate that half of these IF are in fact exact for generic active Brownian particle systems. Finally, I test these integral formulae by applying them to numerical data from direct particle dynamics simulation and find that they remain valid to a great extent.
A forecast of using fast radio
burst observations to constrain holographic dark energy
Authors: Qiu Xing-Wei , Zhao Ze-Wei , Wang Ling-Feng , Zhang Jing-Fei , Zhang Xin 
Published: February 2022

Abstract
Recently, about five hundred fast radio bursts (FRBs) detected by CHIME/FRB Project have been reported. The vast amounts of data would make FRBs a promising low-redshift cosmological probe in the forthcoming years, and thus the issue of how many FRBs are needed for precise cosmological parameter estimation in different dark energy models should be detailedly investigated. Different from the usually considered w(z)-parameterized models in the literature, in this work we investigate the holographic dark energy (HDE) model and the Ricci dark energy (RDE) model, which originate from the holographic principle of quantum gravity, using the simulated localized FRB data as a cosmological probe for the first time. We show that the Hubble constant H
0 can be constrained to about 2% precision in the HDE model with the Macquart relation of FRB by using 10000 accurately-localized FRBs combined with the current CMB data, which is similar to the precision of the SH0ES value. Using 10000 localized FRBs combined with the CMB data can achieve about 6% constraint on the dark-energy parameter c in the HDE model, which is tighter than the current BAO data combined with CMB. We also study the combination of the FRB data and another low-redshift cosmological probe, i.e. gravitational wave (GW) standard siren data, with the purpose of measuring cosmological parameters independent of CMB. Although the parameter degeneracies inherent in FRB and in GW are rather different, we find that more than 10000 FRBs are demanded to effectively improve the constraints in the holographic dark energy models.
Cosmological constraints from the tomographic cross-correlation of DESI Luminous Red Galaxies and Planck CMB lensing
Authors: White Martin , Zhou Rongpu , DeRose Joseph , Ferraro Simone , Chen Shi-Fan , Kokron Nickolas , Bailey Stephen , Brooks David , García-Bellido Juan , Guy Julien , Honscheid Klaus , Kehoe Robert , Kremin Anthony , Levi Michael , Palanque-Delabrouille Nathalie , Poppett Claire , Schlegel David , Tarle Gregory 
Published: February 2022

Abstract
We use luminous red galaxies selected from the imaging
surveys that are being used for targeting by the Dark Energy
Spectroscopic Instrument (DESI) in combination with CMB lensing maps
from the Planck collaboration to probe the amplitude of large-scale
structure over 0.4 ≤ z ≤ 1. Our galaxy sample, with an angular
number density of approximately 500 deg-2 over 18,000
sq.deg., is divided into 4 tomographic bins by photometric redshift
and the redshift distributions are calibrated using spectroscopy
from DESI. We fit the galaxy autospectra and galaxy-convergence
cross-spectra using models based on cosmological perturbation
theory, restricting to large scales that are expected to be well
described by such models. Within the context of ΛCDM,
combining all 4 samples and using priors on the background cosmology
from supernova and baryon acoustic oscillation measurements, we find
S
8 = σ8(Ωm/0.3)0.5 = 0.73 ± 0.03. This result is
lower than the prediction of the ΛCDM model conditioned on
the Planck data. Our data prefer a slower growth of structure at
low redshift than the model predictions, though at only modest
significance.
Cathodic- and anodic-pulses can alternately activate different sub-populations of neurons during sustained high-frequency stimulation of axons in rat hippocampus
Authors: Feng Zhouyan , Zheng Lvpiao , Yuan Yue , Yang Gangsheng , Hu Yifan , Lu Chuchu , Wang Zhaoxiang 
Published: February 2022

Abstract
Objective: Charge-balanced biphasic-pulses are commonly used in neural stimulations to prevent possible damages caused by charge accumulations. The lagging anodic-phases of biphasic-pulses may decrease the activation efficiency of stimulations by counteracting the depolarization effect of the leading cathodic-phases. However, a monophasic anodic-pulse alone can itself activate neurons by depolarizing neuronal membrane through a mechanism of virtual cathode. This study aimed to verify the hypothesis that the anodic-phases/pulses in charge-balanced stimulations could play an activation role during sustained high-frequency stimulations (HFS). Approach: Two types of antidromic HFS (A-HFS) were applied on the alveus of hippocampal CA1 region of anesthetized rats: monophasic-pulse A-HFS of alternate opposite pulses and biphasic-pulse A-HFS with the same frequency of 100 or 200 Hz. The antidromically-evoked population spike (APS) was used as a biomarker to evaluate the activation effects of A-HFS pulses. Main results: Despite a significant difference in the initial abilities of anodic- and cathodic-pulses to activate neurons, an anodic-pulse was able to induce similar amount of neuronal firing as a cathodic-pulse during sustained monophasic-pulse A-HFS. Additionally, the amount of neuronal firing induced by the monophasic-pulse A-HFS was similar to that induced by the biphasic-pulse A-HFS consuming a double amount of electrical energy. Furthermore, the alternate cathodic- and anodic-pulses respectively activated different sub-populations of neurons during steady A-HFS. Significance: The anodic-phases/pulses in charge-balanced HFS at axons can play an activation role in addition to a role of charge balance. The study provides important information for designing charge-balanced stimulations and reveals new mechanisms of neural stimulations.
The antibacterial property of zinc oxide/graphene oxide modified porous polyetheretherketone against S. sanguinis, F. nucleatum and P. gingivalis
Authors: Yang Shihui , Yu Wanqi , Zhang Jingjie , Han Xiao , Wang Junyan , Sun Duo , Shi Ruining , Zhou Yanmin , Zhang Haibo , Zhao Jinghui 
Published: February 2022

Abstract
About 30% failures of implant are caused by peri-implantitis. Subgingival plaque, consisting of S. sanguinis, F. nucleatum, P. gingivalis et al, is the initiating factor of peri-implantitis. Polyetheretherketone (PEEK) is widely used for the fabrication of implant abutment, healing cap and temporary abutment in dental applications. As a biologically inert material, PEEK has shown poor antibacterial properties. To promote the antibacterial activity of PEEK, we loaded ZnO/GO on sulfonated PEEK. We screened out that when mass ratio of ZnO/GO was 4:1, dip-coating time was 25 min, ZnO/GO modified SPEEK shown the best physical and chemical properties. At the meantime, the ZnO/GO-SPEEK samples possess a good biocompatibility. The ZnO/GO-SPEEK inhibits P. gingivalis obviously, and could exert an antibacterial activity to S. sanguinis in the early stage, prevents biofilm formation effectively. With the favorable in vitro performances, the modification of PEEK with ZnO/GO is promising for preventing peri-implantitis.
Constraint optimization and

SU(N)

quantum control landscapes
Authors: Birtea Petre , Caşu Ioan , Comănescu Dan 
Published: February 2022

Abstract
We develop the embedded gradient vector field method, introduced in [8, 9], for the case of the special unitary group

SU

(

N

)

regarded as a constraint submanifold of the unitary group

U

(

N

)

. The optimization problem associated to the trace fidelity cost function defined on

SU

(

N

)

that appears in the context of

SU

(

N

)

quantum control landscapes is completely solved using the embedded gradient vector field method. We prove that for N ⩾ 5, the landscape is not

SU

(

N

)

-trap free, there are always kinematic local extrema that are not global extrema.
The 2nd International Conference on Sustainable Plantation (ICSP): Improving Added Value of Plantation Crops through Sustainable Plantation
Authors: Syafaruddin  , Sugiyanta  , Wiyono S , Dirhamsyah T , Iriani E S 
Published: February 2022

A. SUMMARY OF CONFERENCE

1. Introduction

1.1. Background

The Covid-19 pandemic has caused shocks not only in the health aspect but also in all aspects of the global community‟s life. It has significant effect in all sectors of the economy, including the agricultural sector. However, the agricultural sector, including the plantation sub-sector, is a sector that has been able to survive and even shows positive growth. On the other hand, the agricultural commodities from the plantation sector have been significant in job opportunities and export earnings. Major plantation crops such as oil palm, coconut, sago palm, rubber, coffee, cacao, tea, pepper, clove, medicinal plants, and sugarcane may continue their significant contribution to the economy of many tropical countries. These countries will still dominate as the world‟s leading producers of those plantations, at least soon. Plantation and agricultural sectors are labor-intensive. As these sectors are steadily expanding, a reliable workforce requirement has become one of the major issues resulting in huge dependency on capacity development to fulfill the rising need.
The 2nd International Conference on Sustainable Plantation (ICSP) was virtually-held in collaboration between the Faculty of Agriculture, IPB University with Indonesian Center for Estate Crops Research and Development (ICECRD), The Indonesian Agency for Agricultural Research and Development (IAARD), with involving the Indonesian Palmae Crops Research Institute (IPCRI), Indonesian Industrial and Beverage Crops Research Institute (IIBCRI), Indonesian Spice and Medicinal Crops Research Institute (ISMCRI), and Indonesian Sweetener and Fiber Crops Research
List of Table, Images, Paper Publication, Funding Acknowledgements, Special Acknowledgements, List Of Committee, Organizing Committee are available in this pdf.
Stenocranus pacificus (Hemiptera: Delphacidae) and Spodoptera frugiperda (Noctuidae; Lepidoptera) are important pests on maize mix-cropped with oil palm in West Sumatra
Authors: Nelly N , Hamid H , Lina E C , Yunisman  , Mysyahrawati  
Published: February 2022

Abstract
Maize is commonly planted in monoculture. However, in several areas of West Sumatra, it is also cultivated as polyculture side-by-side with oil palm. The study aimed to investigate the important pests that attacked maize plants in oil palm plantations in Pasaman, West Sumatra. This research was conducted in existing and replanting oil palm plantations. Insect pests data collection was purposive random sampled from represented plots of maize plants that were attacked by pests. Five sample plots of 1x1 m2 were taken for assessing insect pests incidence. The average number of maize plant stalks observed 32. Observations were made on the condition of the maize and oil palm agroecosystem, species and populations, and symptoms of insect pests that attack maize. The result showed that Stenocranus pacificus and Spodoptera frugiperda were the most dominant insect pests. The insects damaged the leaves and stems of maize plants. Stenocranus pacificus population was 4.45 individuals/plants, and Spodoptera frugiperda was 1.7 individuals/plants. The maize in West Pasaman is mostly planted on oil palm plantations consisting of monoculture and in oil palms that would be replanted. It was found that two insect pest species were dominant attackers, i.e., Symptoms of the attacks were seen on the leaves and stems of the plants.
Field evaluation of the potential of drought-tolerant sugarcane (Saccharum officinarum L.) mutants based on morpho-agronomic characters
Authors: Hartati Rr Sri , Yuniyati Nurya 
Published: February 2022

Abstract
A mutation scheme followed by an in-vitro selection is one of the breeding tools for developing drought-tolerant sugarcane varieties. This study aimed to select the drought-tolerant sugarcane mutants. Twenty-seven mutant genotypes that passed the in-vitro selection for drought-tolerant and a Bululawang variety as control were examined in this study. The field evaluation was done in Asembagus, Situbondo, East Java, from January 2019 to December 2020. The four-month-old plants were exposed to drought conditions for two months period. The experiment used a Randomized Complete Block Design with three replications. The observations were made on morpho-agronomic parameters such as a leaf, leaf sheath, internode, stem, bud characters, stem length, diameter, stem weight, internode’s number and length, yield, and Brix. Results showed that three mutant genotypes performed better under simulated drought stress than the BL variety with higher yield potential (> 125 ton ha−1). These mutants differed from their original cultivar in the leaf sheath, internode, stem, and bud, hairy, and adherence-leaf sheath characters. Shortly, further evaluation of agronomical performances will be made on the first and second ratoon.
Evaluation of the health and sugarcane seed production from the first ratoon cane at various harvest ages
Authors: Parnidi  , Murianigrum M , Ridhawati A , Wijayanti K , Machfud M , Marjani  
Published: February 2022

Abstract
Increasing the productivity of sugarcane can be done by using healthy and pure seeds. This study aimed to evaluate the health and production of sugarcane seed from ratoon sugarcane derived from tissue culture. The study was conducted in 2017 using a split-plot design, as the main plots were varieties BL and PSJK922; as subplots, the age of seed cane harvest was 5, 6, 7, and 8 months, repeated three times. Bud set from each variety was planted in 5 rows with a length of 8 m. Varieties did not significantly affect all variables of plant growth and seed germination. Seed harvesting age at plant cane (PC) and first ratoon (RC1) affected sugarcane growth except for the number of productive tillers at plant cane. The longer the harvesting age of sugarcane seeds, the higher the attack of the shoot and stem borer. In addition, in plants with seeds originating from the first ratoon, no Ratoon Stunting Disease (RSD) was found. Therefore, the first ratoon cane can be used as a source of healthy sugarcane seeds and produce high seed quality following Indonesian national standards for sugarcane seed production if supported by good management.
Etiology of white root disease of cashew (Anacardium occidentale L.)
Authors: Parlindo F , Tondok E T , Wiyono S 
Published: February 2022

Abstract
White root disease is a significant disease of cashew in Indonesia. However, the identity of the causal agent of the disease remains unclear. The objective of the research was to determine the pathogen causing cashew white root disease. Procedures undertaken in this research were (1) field observation in cashew plantations in Karangasem, Bali; (2) isolation and characterization of the suspected fungus and (3) Koch’s postulate on cashew saplings in the greenhouse. Field observation showed that white root disease occurs in cashew plantations with trees prevalently at the age of 8-23 years, with the primary symptom wilting and the presence of rhizomorph on the basal stem. Morphologically, Rigidoporus sp. fungus was consistently isolated from the root of infected plants. An artificial inoculation on nine-month-old saplings showed that wilting symptoms and the presence of rhizomorph on the basal stem developed at 51-76 days after inoculation. The inoculated saplings finally died. Root colonization by Rigidoporus sp. ranged from 35-90%. Rigidoporus sp. as the causal agent of white root disease of cashew was confirmed.
Specific alleles as individual molecular markers and its association for sustainable breeding program in coconut palm
Authors: Mahayu W M , Manambangtua A P , Wungkana J , Taryono  
Published: February 2022

AbstractMolecular markers through individual identification have been used to protect plant varieties, identify varieties, purity test of seeds, and parented analysis in palm oil breeding programs. However, such identification has not been intensively developed on coconut palm. Therefore, this study aimed to obtain individual-specific markers of Indonesian coconut palms and their association. Coconut palms were selected randomly from 7accessions (74 palms) and then evaluated based on 10 SSR primers and main agro morphological characters. This research was carried out during 2017 and 2018 at Plant Breeding Laboratory, UGM, Yogyakarta and Mapanget Experimental Garden, IPCRI, North Sulawesi. CnCir 123-300, CnCir 87-120, CnCir J2-205 were unique alleles that resulted in this study. Five of eleven specific alleles were associated with essential traits of dwarf coconut. CnCir123-250 and CnCir123-300 were specific alleles associated with almost all characters observed in this study. CnCirA9-100 is the only allele that is negatively associated with the height of 11 leaf scars and positively associated with the main characters. Therefore, it is advantageous as a marker-assisted selection of the current coconut plant breeding program. Applications of specific molecular markers associated with essential characters are expected to improve the sustainability of coconut breeding programs.
The potential of essential oils Eucalyptus citriodora and Artemisia vulgaris against Sitophilus zeamais (Coleoptera: Curculionidae)
Authors: Rismayani  , Rohimatun  , Mardiningsih T L , Rizal M 
Published: February 2022

Abstract
Medicinal plants have been developing as the main material for botanical pesticides. Many medicinal plants can be used as botanical pesticides due to their effectiveness in controlling the pest. This study aims to examine the potential of Eucalyptus citriodora and Artemisia vulgaris against Sitophilus zeamais, which can be used to control the storage pest using these plants without using synthetic pesticide. This study was conducted in the pest laboratory, Indonesian Spice and Medicinal Crops Research Institute (ISMCRI), from January to February 2021. The formula of two essential oils of E. citriodora and A. vulgaris with different concentrations (1.5%, 2%, 2.5%, and 3%) were used to control S. zeamais. The result showed that the A. vulgaris had the most potent efficiency as a botanical pesticide against S. zeamais. The highest mortality values of imago S. zeamais at 72 hours after applying E. citriodora and A. vulgaris were 90% and 93%, respectively. Artemisia vulgaris has the highest reaching repellent percentage of imago S. zeamais its 85% at 1 hour after application for 3% concentration. Indicates that essential oils, E. citriodora, and A. vulgaris, possess insecticidal activity against S. zeamais.
Effectiveness of Essential Oil Formula and Silica Against Diamond Shape Leaf Spot Disease in Red Ginger
Authors: Sari M P , Wahyuno D , Florina D , Manohara D , Hoerudin  
Published: February 2022

Abstract
Diamond shape leaf spot disease caused by Pyricularia zingiberi is an essential disease in red ginger. This current research aims to identify the potency of essential oil formula and silica fertilizer against the diamond shape leaf spot disease. Efficacy of clove oil, lemongrass oil, and mancozeb as a control against the colony growth was tested by inoculating the fungus on PDA medium amended with 50, 100, 150, 200, 250, and 300 ppm of the tested fungicides. Compared to lemongrass oil, clove oil (LC50: 70,79 ppm) is more effective in suppressing the growth of P. zingiberi. In a greenhouse, the leaves of five months old red ginger plants were inoculated by spraying 105 conidia mL−1 suspensions of P. zingiberi. Foliar application of clove oil base pesticide and silica was carried out a month before pathogen inoculation, arranged in the factorial randomized complete design. The disease severity was measured monthly, and the data were analyzed using ANOVA. Disease severity on the plant treated by either clove oil base pesticide or silica was 9,08% and 8,71% lower than control (20,21%). Further research is still needed. Treatment with clove oil base pesticide or silica shows potency in reducing the disease severity.
Latex production of some recommended rubber clones on low tapping frequency
Authors: Aji M , Supijatno  , Santosa E 
Published: February 2022

Abstract
In the current fluctuating global rubber price, cost production efficiency, such as reducing the tapping frequency in the rubber harvesting, is important to maintain the sustainability of rubber production. However, a decrease in tapping frequency can cause a decrease in latex production. This study aimed to determine the effect of low tapping frequency in several rubber clones on rubber production. The research was conducted at Indonesian Rubber Research Institute, South Sumatra, from July 2020 to January 2021. This study used a nested design with two factors, i.e., tapping and stimulant application frequency. The rubber tree used recommended clones of IRR 112, IRR 118, and BPM aged 24 years old after planting in 2010. The results showed that decreasing in tapping frequency from d3 to d5 decreased productivity by 30-40%, from d5 to d7 by 20-40%, and from d3 to d7 decreased by 60%. Stimulant applications increased the production of clones BPM 24, IRR 112, and IRR 118 by 83%, 66%, and 333%, respectively. Overall, tapping on IRR 118 with d5 frequency and the addition of stimulant showed better results. This study implies that reduction of tapping frequency in combination with stimulant application is prospective to be implemented.