bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of osmotic shock effect on pulsed electric field treated S. cerevisiae yeast cells
Authors: Gančytė Greta , Šimonis Povilas , Stirkė Arūnas 
Published: June 2023

AbstractPulsed electric field (PEF) treatment is known to cause plasma membrane permeabilization of microorganisms, an effect known as electroporation. PEF treatment is very attractive since it can achieve permeabilization with or without lethal damage in accordance with desired results. This study aimed to expand the accomplishment of electroporation outcomes by applying sudden post-PEF osmotic composition change of the media. Changes in yeast cells’ viability, size and plasma membrane regeneration rate were evaluated. However, we still have questions about the intracellular biochemical processes responsible for plasma membrane recovery after electroporation. Our suggested candidate is the high osmolarity glycerol (HOG) kinase pathway. The HOG pathway in Saccharomyces cerevisiae yeasts is responsible for volume recovery after dangerous shape modifications and intracellular water disbalance caused by environmental osmotic pressure changes. Thus, we evaluated the HOG pathway inactivation effect on S. cerevisiae’s reaction to PEF treatment. Results showed that Hog1 deficient S. cerevisiae cells were considerably more sensitive to electric field treatment, confirming a link between the HOG pathway and S. cerevisiae recovery process after electroporation. By suddenly changing the osmolarity of the media after PEF we influenced the cells’ plasma membrane recovery rate, severity of permeabilization and survivability of yeast cells. Studies of electroporation in combination with various treatments might improve electric field application range, efficiency, and optimization of the process.
Recognition of pear leaf disease under complex background based on DBPNet and modified mobilenetV2
Authors: Wu Xuehui , Luo Zhiwei , Xu Huanliang 
Published: June 2023

AbstractGiven the challenge of pear leaf disease recognition caused by uneven illumination, overlapping leaves, and other green plants in the background, a two‐stage strategy‐based framework for pear leaf segmentation and disease classification is proposed. Initially, a double branch polymerization net fusing features of the low‐level feature branch and semantic branch is constructed to extract the target diseased pear leaf and eliminate background interference. Then an improved lightweight neural network (Inverted‐Inception Efficient‐Excitation‐and‐Filtering‐Bottleneck MobileNet‐v2, I2EMv2) is used to capture multi‐scale lesion information and ainhibit invalid feature channels and filter redundant features for the final classification. The experimental results show that the proposed framework can accurately extract the pear leaf region with complete boundary from the complex background, maximize the retention of lesion information, and achieve high‐precision pear leaf disease identification. The mean absolute error, F‐measure, and intersection over union of leaf segmentation are 0.027, 0.947, and 0.880, respectively, and the average recognition accuracy of leaf disease is 92.05%. Compared with others, the method proposed in this paper has superior performance on segmentation and classification, which provides a reference for pear leaf disease classification under complex background.
Adaptive control schemes based on characteristic model for servo motor drives
Authors: Wang Jiyao , Xu Wei , Fang Shuhua , Chen Yong , Wang Yicheng , Wang Wei 
Published: June 2023

AbstractIn the paper, two adaptive control schemes based on characteristic model (CM) method are proposed to achieve great dynamic performance for servo motor drive applications. Two second‐order CMs of permanent magnet synchronous motors (PMSMs) are established based on the difference equation method. An adaptive controller consisting of four control laws is designed based on CMs. The proposed controller implements an improved maintaining/tracking control law that considers load torque ripple, plus a golden‐section adaptive control law, a logic differential control law, and a logic integral control law. In addition, two different servo systems using adaptive controllers are established, both of which are simple to implement and can achieve accurate position‐tracking or speed‐tracking in a servo drive system. The feasibility and effectiveness of the proposed adaptive control schemes are experimentally tested and verified on a servo motor drive platform.
Endoscopic closure versus surgical revision in the management of gastro-gastric fistula following Roux-en-Y gastric bypass
Authors: Dolan Russell D. , Jirapinyo Pichamol , Maahs Ethan D. , Thompson Christopher C. 
Published: June 2023

Abstract
Background and study aims Gastro-gastric fistulae (GGF) occur in 1.3 % to 6 % of Rouxy-en-Y gastric bypass (RYGB) patients and can be associated with abdominal pain, reflux, weight regain and onset of diabetes. Endoscopic and surgical treatments are available without prior comparisons. The study aim was to compare endoscopic and surgical treatment methods in RYGB patients with GGF.
Patients and methods A retrospective matched cohort study of RYGB patients who underwent endoscopic closure (ENDO) or surgical revision (SURG) for GGF. One-to-one matching was performed based on age, sex, body mass index and weight regain. Patient demographics, GGF size, procedural details, symptoms and treatment-related adverse events (AEs) were collected. A comparison of symptom improvement and treatment-related AEs was performed. Fisher’s Exact, t-test and Wilcoxon Rank Sum tests were performed.
Results Ninety RYGB patients with GGF (45 ENDO, 45 matched SURG) were included. GGF symptoms included weight regain (80 %), gastroesophageal reflux disease (71 %) and abdominal pain (67 %). At 6 months, the ENDO and SURG groups experienced 0.59 % and 5.5 % total weight loss (TWL) (P = 0.0002). At 12 months, the ENDO and SURG groups experienced 1.9 % and 6.2 % TWL (P = 0.007). Abdominal pain improved in 12 (52.2 %) ENDO and 5 (15.2 %) SURG patients at 12 months (P = 0.007). Diabetes and reflux resolution rates were similar between groups. Treatment-related AEs occurred in four (8.9 %) ENDO and 16 (35.6 %) SURG patients (P = 0.005), of which none and eight (17.8%), respectively, were serious (P = 0.006).
Conclusions Endoscopic GGF treatment produces greater improvement in abdominal pain and fewer overall and serious treatment-related AEs. However, surgical revision appears to yield greater weight loss.
Preparation of polymeric composite for antiskid flooring purpose
Authors: Salih Rana M , Kadhim Hanaa J , Nassif Rafah A 
Published: June 2023

Abstract
Three polymeric blends were prepared using epoxy, nitrile butadiene rubber (NBR), and polyurethanes (PU) to develop antiskid surfaces with the required mechanical properties. The optimum mixing ratio was decided according to the results of the coefficient of friction and impact tests. Mechanical properties, including wear, bending, compression, impact, hardness, and water uptake, were measured. Scanning electron microscopy (SEM) was used to investigate the microscopic features. The results showed variations in the values of coefficient of friction for the three blends, where the epoxy/NBR specimens showed the highest value of 0.81, followed by specimens of epoxy blended with the two types of commercial polyurethanes, Sikaflex™ and Sikaswell™ of 0.73 and 0.69, respectively. The highest wear rate was noticed for the epoxy/NBR specimen, while the epoxy+Sikaflex specimen showed the lowest wear rate compared to other specimens. The epoxy/Sikaflex also showed the highest values for hardness, compared with epoxy/Sikaswell and epoxy/NBR, respectively. The resultant blends showed improved mechanical properties with high slipping resistance, which makes the prepared blends potential alternatives compared to traditional flooring materials.
Oblique laser transmission and scattering characteristics of multilayer ice-water mixed clouds based on the successive scattering method
Authors: Wei Yafei , Wang Mingjun , Zhang Jialin , Wang Wanrou , Huang Chaojun 
Published: June 2023

Abstract
Clouds are widely distributed in the atmosphere, which is an important factor affecting the laser engineering application. In the paper, we developed a scattering transmission model of laser light in multilayer ice-water mixed clouds for applications in laser communication, laser detection, and laser weapons. Based on the successive scattering method, the direct transmission and first-order scattering of the laser between an aircraft and a target are numerically calculated in different cloud structures. The effects of the vertical structure of the clouds and the position of the aircraft and the target on the laser scattering are analyzed. The results show that the direct transmission can always have minimal and maximal values at the bottom and top of the clouds, respectively, while the peak of the first-order scattering appears near the top of the clouds. Compared to ice clouds, water clouds will produce a huge attenuation of the laser transmission. Our results can provide theoretical guidance for engineering applications in the real cloud environment.
Effects of initial electronic state on elliptically polarized attosecond pulses
Authors: Huo Xiao-Xin , Xing Yun-He , Zhang Jun , Liu Xue-Shen 
Published: June 2023

Abstract
We investigate the ellipticity dependence of the high-order harmonic generation from molecular hydrogen ions with different initial states (

1

σ

g

and

1

σ

u

). The ellipticity of the harmonics can be tuned and is more sensitive to the alignment angle with the ground state. The position of the maximum ellipticity shifts with the increase of the alignment angles, which can be illustrated by the two-center interference model and molecular orbital symmetry. The underlying physical mechanisms of the ellipticity can be demonstrated by the phase difference and amplitude difference of the x and y components of the harmonics. In addition, with specific carrier envelope phase of the laser fields, the elliptically polarized attosecond pulse with high intensity and large ellipticity ɛ = 0.77 is synthesized from the first excited state, which can be used as the bright elliptically polarized EUV light source.
Enhanced mechanical property of Ti-45551 alloy due to TRIP effect
Authors: Chen Lianyang , Deng Qiong , Wu Yue , Sun Biwei , Wang Chuanyun 
Published: June 2023

Abstract
The martensitic phase transformation of nearly β titanium during deformation facilitates the increase and stabilization of strain hardening rate leading to excellent formability. In this work, a nearly β titanium (Ti-4Al-5Mo-5V-5Cr-1Nb %) was designed and exhibited a high yield stress (~760 MPa), a well rate of strain hardening (~950 MPa) up to 40% true strain. Microstructure characterization of the samples after deformation revealed that the excellent mechanical properties were induced by martensitic phase transformation without twinning.
Stress-strain Curve Correction Based on Finite Element Method
Authors: Wang Yongshuai , Wang Haodong , He Xuanfu , Wang Cunxian 
Published: June 2023

Abstract
Necking is a very common phenomenon in uniaxial tensile experiments. It is particularly prominent in materials with high-stress levels. It can be considered a deformation destabilization phenomenon or a localized concentration of deformation. The occurrence of this phenomenon can lead to the failure of the stress-strain curve of the material. Therefore, this paper will examine the problem of stress-strain curve correction in uniaxial tension for materials with high levels of yield stress. Due to the high-stress levels in this class of materials, the material quickly undergoes necking after entering yield, resulting in distorted stress-strain curves. Sometimes, there is not even enough information to fit the intrinsic parameters. In this paper, the real mechanical response of such materials is inverted according to the finite element method to correct the stress-strain curve of the material.
Co-sintered Steel-TA Complex Shells under Impact Loading
Authors: Ke Ming , Fan Ruyu , Qian Bingwen , Li Kang , Li Xian , Zhou Gang 
Published: June 2023

Abstract
To assess the application of the co-sintering method in fabricating steel-tungsten alloy (TA) complex shells, three types of structures were designed and accelerated by a light-gas gun to penetrate concrete targets. Experiment results show that, at around 500 m/s, the co-sintered steel-TA shells can survive the loadings penetrating the concrete targets without obvious deformation, confirming the viability of co-sintering in making steel-TA complex shells for moderate impact velocity. The fact that only a few scratches are left on the head of the penetrator implies the potential for higher velocities.
The failure evolution characteristic of the arched structure under blast loading
Authors: Lin Qindong , Feng Chun , Zhang Yulei , Gan Yundan , Yuan Jianfei 
Published: June 2023

Abstract
Aiming at the arched structure in the field of defense engineering, it is of significant military value and theoretical innovation to investigate the failure mode and evolution characteristic of the arched structure under blast loading. First, a full-time simulation of the underground arched structure under blast loading is carried ou. Then, the displacement evolution characteristic of the arched structure is studied. Finally, the crack evolution characteristic of the arched structure is studied. The numerical simulation indicates that the dispalcement of concrete near the midpoint of the straight wall at the right side is largest. The rock mass on the outside of the right arch segment and the middle arch segment collapses the most seriously. As the time increases, the fracture ratio continuous to increase, and the fractured interface appearing during the explosion stage accounts for 43.65% of the total fractured interface. The damage degree of concrete of the straight wall and the arch segment at the right side is the most severe, and the rock mass mainly undergoes shear fracture.
The corrosion resistance of Al-Fe-Co-Cr-Ni-Cu high entropy alloy coatings
Authors: Niu Xuelian , Luan Zhongqi , Mei Yan , Yu You 
Published: June 2023

Abstract
A high entropy alloy AlxFeCoCrNiCu (x=0.5, 1) coating was prepared by the electron beam evaporation method on the surface of the steel. The influence of aluminum content on the corrosion resistance of the coating is discussed. The obtained results show that the HEA coatings retain the HEA phase structure without any phase change. The polarization curves show that the high entropy alloy coating of Al0.5FeCoCrNiCu had better corrosion resistance in 0.5 mol/L H2SO4 solution and 1 mol/L NaCl solution. This design of the HEA coatings provides a novel method for steel corrosion-resistant materials.
Compression Behavior of Extra-soft Porcine Lung Tissue at the Wide Strain Rate
Authors: Liu Yue , Peng Feiyang , Wang Yongshuai , Chen Mingwei , Hu Zhi , Miao Yinggang 
Published: June 2023

Abstract
Lung is the respiratory organ and the important hematopoietic organ of the human body, which is easily damaged under impact load. Therefore, studying the mechanical behavior of the lung under impact load is an important way to understand its damage mechanism of it. Compression experiments of porcine lung tissue at a wide strain rate (0.001-3000 s−1) were carried out at room temperature. The modifications were made for the highly accurate mechanical measurement of the tissue due to its low wave impedance. The results show that its behaviors consist of three stages, linear elasticity, plateau stage, and compaction. The lung tissue presents distinct rate-dependence in the compaction stage. Furthermore, it behaves nearly similarly under both the loading directions of vertical and parallel trachea, which facilitates to a demonstration of its isotropy.
Fluctuations of Strongly-interacting Matter in Thermal Models at Chemical Freeze-out
Authors: Karthein Jamie M. 
Published: June 2023

Abstract
Fluctuations provide a powerful tool for elucidating the nature of strongly-interacting matter in the QCD phase diagram. In heavy-ion-collision systems, the net-particle number fluctuations are captured at the moment of chemical freeze-out. Studies of the chemical freeze-out via susceptibilities from lattice QCD and the Hadron Resonance Gas model contribute to the characterization of the transition region of the QCD phase diagram. This contribution to proceedings will show how susceptibilities can be used to study the interplay between different conserved charges via cross-correlators and to constrain interactions in the hadron gas phase.
Strain and vibration measurements by FBG sensors for engineering applications
Authors: Castaldo A. , Caponero M.A. , Clemente P. , Mazzotta C. , Polimadei A. , Terranova G. , Capasso M. , Darban R. , Lavorato D. , Nuti C. , Signorini S. , Sonzogni F. , Failla C. 
Published: June 2023

Abstract
Fiber optic sensors based on the fiber Bragg grating (FBG)
technology [1] is widely used to produce quasi-distributed monitoring systems to measure
mechanical parameters for Structural Health Monitoring (SHM) of civil engineering
structures [2]. FBG sensors are produced in the core of the optical fiber, as a short
segment of fiber where a diffraction grating is produced (5–10 mm). The principle of operation
of the FBGs is based on the diffraction occurring at the grating: if broadband light propagates, a
quasi-monochromatic counter propagating light originates. The wavelength of the diffracted light
depends on the value of the refraction index of the core along the grating which in turn is
affected by both temperature and strain. Thus, by measuring the wavelength change of the counter
propagating light, the change of strain and the temperature can be worked out. The PREFOS
Project [3] aims to develop a novel procedure to apply the use of FBGs to monitor the
prestressed strands of civil engineering prefabricated components. In this paper, we report
results of an experimental campaign intended to measure the sensitivity of saddle-like sensors to
induced vibration and mechanical strain. Measurements were done performing static and dynamic
tests on a steel strand equipped with 3 sensors. The tests have been performed applying different
tensioning to the steel strand. Static measurements were worked out applying a stepwise tensioning
increase. Dynamic tests were worked out at each stepped tension level, inducing vibration by both
sharp hammer impact and release of hanged weight. The paper is organized as follows, in
section 1 a general description of the testbed structure used for the experiments will
be provided. In section 2 the results of static analysis and dynamic tests will be
presented with the dynamic behavior of the strand evaluated by performing a simple Fast Fourier
Transform (FFT). Finally, the conclusions will be drawn.
Age-related advanced glycation end-product accumulation impairs mitochondrial regulation after vitrification
Authors: Ito Jun , Iwata Hisataka 
Published: June 2023

Abstract
Vitrification is an important assisted reproductive technology, although it induces mitochondrial dysfunction in embryos. Herein, we aimed to investigate whether age-associated accumulation of advanced glycation end-products (AGEs) in oocytes impairs the recovery of embryos from cryopreservation-induced mitochondrial dysfunction/damage. Mouse eight-cell stage embryos developed in vitro were vitrified and warmed and incubated up to the blastocyst stage. AGE levels in oocytes were higher in both aged mice and AGE accumulation mouse models (MGO-mice) than those in young and control mice. In addition, the level of SIRT1 upregulation was lower for embryos of aged and MGO-mice than that for embryos of young and control mice. The highest mitochondrial DNA (mtDNA) content was detected in blastocysts derived from vitrified embryos of aged and MGO-mice. The spent culture medium of blastocysts derived from both aged and MGO-mice contained higher mtDNA content than that of the blastocysts derived from young and control mice. EX527 increased mtDNA content in the spent culture medium of vitrified embryos derived from young mice. In addition, p62 aggregate levels were higher in vitrified embryos of control mice than those in vitrified embryos of MGO-mice. The SIRT1 activator, resveratrol, increased p62 aggregation levels in vitrified embryos derived from young and aged mice, whereas vitrification did not affect p62 aggregation levels in embryos from aged mice. Therefore, age-associated AGE accumulation induces decreased responsive SIRT1 upregulation following vitrified–warmed treatment and impairs mitochondrial quality control activity in vitrified embryos.
Implementing rubric co-construction in ESL writing teaching
Authors: Zhang Tong , Weng Zhenjie 
Published: June 2023

Abstract
Rubrics are often used as scoring tools in evaluating student writing performance. Although there is a considerable amount of research on the use of rubrics in ESL writing instruction, little attention has been paid to studies of engaging students in rubric co-construction in the ELT context. This study investigates the implementation of teacher-student rubric co-construction as an alternative formative assessment in an ESL university writing course. Through analyzing the data collected from student interviews and teacher reflection, this study focuses on elucidating the rubric co-construction process and providing insights of students and the teacher who have engaged in rubric co-construction in ESL writing teaching and learning.
Consequences of postglacial contact between phylogroups of Blarina brevicauda in North America’s Great Lakes Region
Authors: Cassidy Ellen R , Galbreath Kurt E 
Published: June 2023

Abstract
Across eastern North America, glacial cycles of the Pleistocene drove episodic latitudinal range shifts by temperate species. Isolation of populations within low-latitude refugia during glacial maxima was enhanced by physiographic barriers, leading to patterns of phylogeographic differentiation that are shared across diverse taxa. Postglacial population expansion created opportunities for differentiated lineages to come into contact, with various potential population-genetic outcomes. Northern short-tailed shrews (Blarina brevicauda) exhibit three mitochondrial phylogroups that probably originated via glacial-age range restriction and isolation. We investigate the history of postglacial expansion and interlineage contact between historically isolated regional populations of B. brevicauda. Morphological differences between skulls of shrews representing a Western lineage and those representing Central and Eastern lineages are consistent with past subspecies delineations. However, we demonstrate broad range overlap between neighboring phylogroups across the Upper Peninsula and Lower Peninsula in Michigan. Further, incongruence between phylogroup association and morphology among individuals in Upper Peninsula populations suggests that genetic admixture between shrews representing the Western and Central groups has occurred in the past and may be ongoing. We show that across most cranial measurements, shrews within the contact zone are morphologically most similar to the Central group regardless of mitochondrial identity, but one measurement in these contact zone shrews (depth of skull) is more similar to that seen in the Western group. These results suggest that hybridization between historically isolated populations has resulted in the origin of a novel skull phenotype that is proportionally deeper, narrower, and shorter than those seen in core Western and Central populations.