Miracle-dz/UniFAR-FTUs huggingface dataset:
Influences of Manufacturing‐Related Microstructural Variations on Fatigue in Carbide‐Rich Tool Steels

In cold‐work applications, tool steels with high carbide contents are used as cutting and stamping tools. The tool service life is limited by wear resistance and fatigue strength. The relationship between manufacturing‐related microstructural influences and fatigue strengths of tool steels has not yet been adequately investigated. To investigate these influences on high‐cycle fatigue (HCF) strength (NG = 107), rotating bending tests are performed on AISI D2 and AISI M2/M3. Raw materials are produced by conventional ingot casting and subsequent hot working (HW) as well as in a powder metallurgy (PM) process with hot isostatic pressing (HIP) and forging. Herein, a statistically validated correlation of process‐related defect size and the resulting fatigue strength is presented. Both PM steels show significantly higher HCF strength than the HW steels. Critical defects in PM appear to be exclusively small oxide inclusions. In contrast, fatigue cracks in HW are typically initiated by the fracture of large, blocky eutectic carbides. The main factor influencing HCF strength is defect size. Other critical features of the microstructure include matrix hardness, circularity, and defect type. Improvements in fatigue strength can be obtained by reducing the size of fracture mechanical defects, inclusions for PM, and eutectic carbides for HW microstructures.
Determining Emplacement Conditions and Vent Locations for Channelized Lava Flows Southwest of Arsia Mons

The lava flow field southwest of Arsia Mons, Mars has complex volcanic geomorphology. Overlapping flows make observations of their total lengths and identification of their source vents impossible. Application of flow emplacement models, which rely upon physical parameters such as flow length, using only the exposed flow may produce inaccurate estimates of effusion rate, viscosity, and yield strength. We use an established terrestrial thermorheological model (PyFLOWGO), modified to Mars conditions, to estimate effusion rates, viscosities, yield strengths, and possible vent locations for five Mars flows. Our investigation found a range of effusion rates from 2,500 to 6,750 m3 s−1 (average of ∼4,960 m3 s−1). These results are an order of magnitude higher than terrestrial channelized basaltic flows. Corresponding modeled viscosities and yield strengths ranged from 9.4 × 103 to 6.6 × 105 Pa s (average of 5.5 × 104 Pa s) and 66 to 381 Pa (average of 209 Pa), respectively. A novel secondary application of PyFLOWGO that assumes upslope channel narrowing provided estimates of the entire channel length, which is on average four times longer than the exposed portions. Projecting these lengths upslope shows that four of the five flows may have a common vent location, which shares morphologic similarities to other Tharsis region vents. This modeling approach for partially‐exposed lava flows makes it possible to not only determine eruptive parameters, but also to estimate total channel lengths and thereby identify possible source vents.
On the geometry and topology of partial configuration spaces of Riemann surfaces

We examine complements (inside products of a smooth projective complex curve of arbitrary genus) of unions of diagonals indexed by the edges of an arbitrary simple graph. We use Gysin models associated to these quasi-projective manifolds to compute pairs of analytic germs at the origin, both for rank 1 and 2 representation varieties of their fundamental groups, and for degree 1 topological Green--Lazarsfeld loci. As a corollary, we describe all regular surjections with connected generic fiber, defined on the above complements onto smooth complex curves of negative Euler characteristic. We show that the nontrivial part at the origin, for both rank 2 representation varieties and their degree 1 jump loci, comes from curves of general type, via the above regular maps. We compute explicit finite presentations for the Malcev Lie algebras of the fundamental groups, and we analyze their formality properties.
Exploring ν signals in dark matter detectors

We investigate standard and non-standard solar neutrino signals in direct dark matter detection experiments. It is well known that even without new physics, scattering of solar neutrinos on nuclei or electrons is an irreducible background for direct dark matter searches, once these experiments reach the ton scale. Here, we entertain the possibility that neutrino interactions are enhanced by new physics, such as new light force carriers (for instance a ``dark photon'') or neutrino magnetic moments. We consider models with only the three standard neutrino flavors, as well as scenarios with extra sterile neutrinos. We find that low-energy neutrino-electron and neutrino-nucleus scattering rates can be enhanced by several orders of magnitude, potentially enough to explain the event excesses observed in CoGeNT and CRESST. We also investigate temporal modulation in these neutrino signals, which can arise from geometric effects, oscillation physics, non-standard neutrino energy loss, and direction-dependent detection efficiencies. We emphasize that, in addition to providing potential explanations for existing signals, models featuring new physics in the neutrino sector can also be very relevant to future dark matter searches, where, on the one hand, they can be probed and constrained, but on the other hand, their signatures could also be confused with dark matter signals.
European Journal of Physical Education and Sport Science-2501-1235

The current study investigated the relationship between isokinetic knee strength, jump performance, agility, linear and repeated sprinting capacity and Yo-Yo IR1 test performance and the fatigue indices of some of these variables in semi-professional soccer players. Twenty semi-professional soccer players participated in this study, performing 6 tests: bilateral concentric isokinetic strength tests of the knee extensors and flexors (60◦.s-1 and 300◦.s-1), jump tests (countermovement, squat and repeated jumping), linear sprints (10 and 30 m), agility (Illinois test), Bangsbo repeated sprints (7 x 34.2 m), and Yo-Yo IR1 tests. While no isokinetic variables were significantly correlated with field test results, some jump test results correlated with AgiWB, 10and 30-m sprint times, RSTMEAN and FIRS. Furthermore, the knee isokinetic strength (60◦.s-1 and 300◦.s1) indices and jump capacities demonstrated moderate to strong relationships with each other. In addition, AgiWB correlated with the 10-m sprint times and RSTMEAN, 30-m linear sprint times correlated with 10-m sprint times and AgiWB, and FIRS and RSTMEAN correlated with the Yo-Yo IR1 test results. The results suggest that power output during CMJ and RJ tests and not isokinetic knee strength are informative in determining field conditioning parameters for semi-professional soccer players.
Affine representability results in A^1-homotopy theory III: finite fields and complements

We give a streamlined proof of ${\mathbb A}^1$-representability for $G$-torsors under "isotropic" reductive groups, extending previous results in this sequence of papers to finite fields. We then analyze a collection of group homomorphisms that yield fiber sequences in ${\mathbb A}^1$-homotopy theory, and identify the final examples of motivic spheres that arise as homogeneous spaces for reductive groups.
Square-root cancellation for sums of factorization functions over short intervals in function fields

We present new estimates for sums of the divisor function, and other similar arithmetic functions, in short intervals over function fields. (When the intervals are long, one obtains a good estimate from the Riemann hypothesis.) We obtain an estimate that approaches square root cancellation as long as the characteristic of the finite field is relatively large. This is done by a geometric method, inspired by work of Hast and Matei, where we calculate the singular locus of a variety whose $\mathbb F_q$-points control this sum. This has applications to highly unbalanced moments of $L$-functions.
On mixing and sparse ergodic theorems

We consider Bourgain's ergodic theorem regarding arithmetic averages in the cases where quantitative mixing is present in the dynamical system. Focusing on the case of the horocyclic flow, those estimates allows us to bound from above the Hausdorff dimension of the exceptional set, providing evidence towards conjectures by Margulis,Shah and Sarnak regarding equidistribution of arithmetic averages in homogeneous spaces. We also prove the existence of a uniform upper bound for the Hausdorff dimension of the exceptional set which is independent from the spectral gap.
Evolution of the clustering of photometrically selected SDSS galaxies

We measure the angular auto-correlation functions, ω(θ), of Sloan Digital Sky Survey (SDSS) galaxies selected to have photometric redshifts 0.1 < z < 0.4 and absolute r-band magnitudes Mr < −21.2. We split these galaxies into five overlapping redshift shells of width 0.1 and measure ω(θ) in each subsample in order to investigate the evolution of SDSS galaxies. We find that the bias increases substantially with redshift – much more so than one would expect for a passively evolving sample. We use halo-model analysis to determine the best-fitting halo-occupation-distribution (HOD) for each subsample, and the best-fitting models allow us to interpret the change in bias physically. In order to properly interpret our best-fitting HODs, we convert each halo mass to its z= 0 passively evolved bias (bo), enabling a direct comparison of the best-fitting HODs at different redshifts. We find that the minimum halo bo required to host a galaxy decreases as the redshift decreases, suggesting that galaxies with Mr < −21.2 are forming in haloes at the low-mass end of the HODs over our redshift range. We use the best-fitting HODs to determine the change in occupation number divided by the change in mass of haloes with constant bo, ΔN/ΔM (bo), and we find a sharp peak at bo∼ 0.9– corresponding to an average halo mass of ∼1012 h−1 M⊙. We thus present the following scenario: the bias of galaxies with Mr < −21.2 decreases as the Universe evolves because these galaxies form in haloes of mass ∼1012 h−1 M⊙ (independent of redshift), and the bias of these haloes naturally decreases as the Universe evolves.
Differential expression of CCR8 in tumors versus normal tissue allows specific depletion of tumor-infiltrating T regulatory cells by GS-1811, a novel Fc-optimized anti-CCR8 antibody

ABSTRACT The presence of T regulatory (Treg) cells in the tumor microenvironment is associated with poor prognosis and resistance to therapies aimed at reactivating anti-tumor immune responses. Therefore, depletion of tumor-infiltrating Tregs is a potential approach to overcome resistance to immunotherapy. However, identifying Treg-specific targets to drive such selective depletion is challenging. CCR8 has recently emerged as one of these potential targets. Here, we describe GS-1811, a novel therapeutic monoclonal antibody that specifically binds to human CCR8 and is designed to selectively deplete tumor-infiltrating Tregs. We validate previous findings showing restricted expression of CCR8 on tumor Tregs, and precisely quantify CCR8 receptor densities on tumor and normal tissue T cell subsets, demonstrating a window for selective depletion of Tregs in the tumor. Importantly, we show that GS-1811 depleting activity is limited to cells expressing CCR8 at levels comparable to tumor-infiltrating Tregs. Targeting CCR8 in mouse tumor models results in robust anti-tumor efficacy, which is dependent on Treg depleting activity, and synergizes with PD-1 inhibition to promote anti-tumor responses in PD-1 resistant models. Our data support clinical development of GS-1811 to target CCR8 in cancer and drive tumor Treg depletion in order to promote anti-tumor immunity.
Analysis of the Residual Type and the Recovery Type a Posteriori Error Estimators for a Consistent Atomistic-to-Continuum Coupling Method in 1D

We consider the a posteriori error estimation for an atomistic-to-continuum cou- pling scheme for a generic one-dimensional many-body next-nearest-neighbour interaction model in 1D. We derive and rigorously prove the efficiency of the residual type estimator. We prove the equivalence between the residual type and the gradient recovery type estima- tor in the continuum region and propose a (novel) hybrid a a posteriori error estimator by combining the two types of estimators. Our numerical experiments illustrate the optimal con- vergence rate of the adaptive algorithms using these estimators whose efficiency factors are also presented.
The geometry of profinite graphs revisited

For a formation $\mathfrak{F}$ of finite groups, tight connections are established between the pro-$\mathfrak{F}$-topology of a finitely generated free group $F$ and the geometry of the Cayley graph $\Gamma(\hat{F_{\mathfrak{F}}})$ of the pro-$\mathfrak{F}$-completion $\hat{F_{\mathfrak {F}}}$ of $F$. For example, the Ribes--Zalesskii-Theorem is proved for the pro-$\mathfrak{F}$-topology of $F$ in case $\Gamma(\hat{F_{\mathfrak F}})$ is a tree-like graph. All these results are established by purely geometric proofs, without the use of inverse monoids which were indispensable in earlier papers, thereby giving more direct and more transparent proofs. Due to the richer structure provided by formations (compared to varieties), new examples of (relatively free) profinite groups with tree-like Cayley graphs are constructed. Thus, new topologies on $F$ are found for which the Ribes-Zalesskii-Theorem holds.
Response of Growth and Yield of Garlic cv. PG-18 against Various Plant Growth Regulators and Mulching along with Its Consortium

An investigation was carried out to examine the effect of plant growth regulators and mulching along with their combinations on growth and yield attributes of garlic at Agriculture Farm, School of Agricultural Sciences & Technology, RIMT University, Mandi Gobindgarh, Punjab, India during 2019-20 by using cultivar PG-18. The study comprised plant growth regulators (GA3 25 ppm, IAA 40 ppm and NAA 60 ppm) and mulches (Black polythene mulch and Rice straw mulch) along with a control. The experiment was replicated thrice and subjected to statistical analysis by using RBD at 5% of CD. The results revealed that growth parameters i.e. plant height (56.83 cm), number of leaves/pant (8.00) and stem diameter (7.87 mm) were reported utmost with the application of BPM+GA3 @ 25 ppm while longest leaf length (38.59 cm) and diameter of pseudo stem (4.73 cm) were measured with BPM+NAA @ 60 ppm and SM+NAA @ 60 ppm, respectively. However, maximum number of cloves/bulb (19.33),diameter of cloves (2.93 mm), clove weight (1.73 g), diameter of bulb (4.04 cm), fresh weight (29.96 g),dry weight (10.53 g), yield/plot (480.30 g) and yield/ha (70.21 q ) were resulted by BPM+IAA @ 40 ppm.
Robust reliable control of uncertain 2D discrete switched systems with state delays

This paper is concerned with the problem of robust reliable control for a class of uncertain 2D discrete switched systems with state delays and actuator faults represented by a model of Roesser type. The parameter uncertainties are assumed to be norm-bounded. Firstly, based on the average dwell time approach, a delay-dependent sufficient condition for the exponential stability of discrete 2D switched systems with state delays is established in terms of linear matrix inequalities. Then, a reliable state feedback controller is designed to guarantee the exponential stability and reliability for the underlying systems. Finally, a numerical example is given to demonstrate the effectiveness of the proposed approach.
SOME PROPERTIES OF ANALYTIC DIFFERENCE VALUED FIELDS

We prove field quantifier elimination for valued fields endowed with both an analytic structure that is $\unicode[STIX]{x1D70E}$ -Henselian and an automorphism that is $\unicode[STIX]{x1D70E}$ -Henselian. From this result we can deduce various Ax–Kochen–Eršov type results with respect to completeness and the independence property. The main example we are interested in is the field of Witt vectors on the algebraic closure of $\mathbb{F}_{p}$ endowed with its natural analytic structure and the lifting of the Frobenius. It turns out we can give a (reasonable) axiomatization of its first-order theory and that this theory does not have the independence property.
WRITING JOB APPLICATION LETTER AND RESUME WITH GOOGLE DOCUMENT: AN EXPERIMENTAL RESEARCH

One of the main skills that must be mastered by vocational students, especially in the Department of Office Automation & Governance (OTKP) is understanding the script layout in English correspondence activities. Considering the urgency of the letter that will be used frequently in the future, and based on discussions with the class teacher at the research locus, the researcher focused on studying the writing of job application letters and resumes in English written by the vocational students. In addition, with the development of writing technology by Google Document (Google Docs/GDocs), it is hoped that it can facilitate students' writing assignments. This research is an experimental study that examines the effectiveness of Google Docs in writing job application letters and resumes in English. The research was conducted through pre-test, post-test and Forum Group Discussion (FGD) in order to provide input on research results. The results shows that through the t test, it is found that Google Docs is effective in writing English correspondence compared to writing letters manually in class X OTKP of SMK Negeri 1 Salatiga.
Upper bound for lifespan of solutions to certain semilinear parabolic, dispersive and hyperbolic equations via a unified test function method

This paper is concerned with the blowup phenomena for initial-boundary value problem for certain semi linear parabolic, dispersive and hyperbolic equations in cone-like domain. The result proposes a unified treatment of estimates for lifespan of solutions to the problem by test function method. The Fujita exponent p=1 + 2/N appears as a threshold of blowup phenomena for small data when $C_{{\Sigma}}=R^N$ , but the case of cone-like domain with boundary the threshold changes and explicitly given via the first eigenvalue of corresponding Laplace-Beltrami operator with Dirichlet boundary condition as in Levine-Meier in 1989.
DETERMINANTS OF LOAN REPAYMENT OF THE SHRIMP HOUSEHOLDS: AN EMPIRICAL STUDY IN CA MAU PROVINCE, VIETNAM

The aim of this paper was to analyze the determinant factors of the ability of shrimp farmers to repay loans on time and the decisive factors of the on-time loan repayment amount. Based on the primary data of 210 shrimp farming households in Ca Mau province, the study applied a two-step regression model of Heckman to test the proposed hypotheses. The research results showed that the number of dependent members, loan amount and number of farming crops negatively impact the ability to repay the loan in a timely manner, while total assets, shrimp farming experience and loan purpose positively influence the ability to repay the loan on time of shrimp households.In addition, the regression results also showed that number of loan maturity and size of shrimp farming land negatively affect the amount of on-time loan repayment, whereas the education level of the household head and total assets positively influence the on-time loan repayment amount. Based on the empirical findings, the authors proposed several recommendations for improving the loan repayment capacity of the households in the study area.
Doubly-resonant saddle-nodes in (C^3,0) and the fixed singularity at infinity in Painlev{\'e} equations: analytic classification

In this work, we consider germs of analytic singular vector elds in (C^3,0) with an isolated and doubly-resonant singularity of saddle-node type at the origin. Such vector elds come from irregular two-dimensional dierential systems with two opposite non-zero eigenvalues, and appear for instance when studying the irregular singularity at innity in Painlev{\'e} equations (P j) j=I,. ,V for generic values of the parameters. Under suitable assumptions, we prove a theorem of analytic normalization over sectorial domains, analogous to the classical one due to Hukuhara-Kimura-Matuda for saddle-nodes in (C^2,0). We also prove that these maps are in fact the Gevrey-1 sums of the formal normalizing map, the existence of which has been proved in a previous paper. Finally we provide an analytic classication under the action of bered dieomorphisms, based on the study of the so-called Stokes dieomorphisms obtained by comparing consecutive sectorial normalizing maps {\`a} la Martinet-Ramis / Stolovitch for 1-resonant vector fields.
A sharp quantitative version of Alexandrov's theorem via the method of moving planes

We prove the following quantitative version of the celebrated Soap Bubble Theorem of Alexandrov. Let $S$ be a $C^2$ closed embedded hypersurface of $\mathbb{R}^{n+1}$, $n\geq1$, and denote by $osc(H)$ the oscillation of its mean curvature. We prove that there exists a positive $\varepsilon$, depending on $n$ and upper bounds on the area and the $C^2$-regularity of $S$, such that if $osc(H) \leq \varepsilon$ then there exist two concentric balls $B_{r_i}$ and $B_{r_e}$ such that $S \subset \overline{B}_{r_e} \setminus B_{r_i}$ and $r_e -r_i \leq C \, osc(H)$, with $C$ depending only on $n$ and upper bounds on the surface area of $S$ and the $C^2$ regularity of $S$. Our approach is based on a quantitative study of the method of moving planes and the quantitative estimate on $r_e-r_i$ we obtain is optimal. As a consequence of this theorem, we also prove that if $osc(H)$ is small then $S$ is diffeomorphic to a sphere and give a quantitative bound which implies that $S$ is $C^1$-close to a sphere.
Application of a frequency inverter in irrigated perimeters: A case study for irrigation automation

The wide variation in water demand and pressure means that most irrigated perimeter pumping systems are oversized. The objective of this study was to control a pressurized irrigation system using a frequency inverter, aiming at automation and energy savings in irrigated perimeters. First, a prototype was assembled using drawer valves to simulate head losses in the system. Second, a frequency inverter was used to control the speed of the rotation of the motor pump, improving its performance. Finally, a microcontroller was used to manage the number of plots under irrigation in the perimeter. The frequency inverter reduced the consumed power by 40, 30 and 19% and the electric power consumption per hour by 46, 38 and 23% for one, two and three plots under irrigation, respectively. The use of the inverter frequency led to a reduction in operating points for all irrigation plot scenarios evaluated. The use of the frequency inverter is justified when the full power of the pump is not always required and adjustment of the rotation speed is necessary. In addition, the proposed automation system proved to be efficient in managing the rotation control of the frequency inverter.
The Role of Community Participation in Cross-Sector Social Partnerships

Communities, intended as self-organized informal groups, are much less structured than nonprofit organizations typically considered by Cross-Sector Social Partnership (CSSP) studies. Building on the empirical investigation of a real CSSP, this article offers an in-depth analysis of the ambivalent dynamics implied by partnership with such communities. Our findings indicate that the mechanisms that create room for innovative collaboration opportunities made available by these communities (such as co-innovation, pricing co-determination, co-financing, and democratic decision making) can also, over time, adversely affect the partnership and cause it to permanently lose its shared purpose. In our conclusion, we provide potential remedies for the latter scenario and discuss how they may enrich CSSP literature.