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18 Results Found

  • Article
  • Open Access
3 Citations
1,844 Views
16 Pages

On AP–Henstock–Kurzweil Integrals and Non-Atomic Radon Measure

  • Hemanta Kalita,
  • Bipan Hazarika and
  • Tomás Pérez Becerra

22 March 2023

The AP–Henstock–Kurzweil-type integral is defined on X, where X is a complete measure metric space. We present some properties of the integral, continuing the study’s use of a Radon measure μ. Finally, using locally finite measur...

  • Article
  • Open Access
5 Citations
3,368 Views
20 Pages

Sturm–Liouville Differential Equations Involving Kurzweil–Henstock Integrable Functions

  • Salvador Sánchez-Perales,
  • Tomás Pérez-Becerra,
  • Virgilio Vázquez-Hipólito and
  • José J. Oliveros-Oliveros

17 June 2021

In this paper, we give sufficient conditions for the existence and uniqueness of the solution of Sturm–Liouville equations subject to Dirichlet boundary value conditions and involving Kurzweil–Henstock integrable functions on unbounded intervals. We...

  • Article
  • Open Access
1 Citations
1,548 Views
20 Pages

23 April 2023

For generalized ordinary differential equations, sufficient criteria are given for the Lipschitz stability in terms of two measures of the trivial solutions. As an application, we apply our main results by studying the Lipschitz stability for measure...

  • Article
  • Open Access
14 Citations
10,419 Views
10 Pages

Transhumanism is dedicated to freeing humankind from the limitations of biological life, creating new bodies that will carry us into the future. In seeking freedom from the constraints of nature, it resembles ancient Gnosticism, but complicates the q...

  • Article
  • Open Access
9 Citations
2,418 Views
14 Pages

Kuelbs–Steadman Spaces for Banach Space-Valued Measures

  • Antonio Boccuto,
  • Bipan Hazarika and
  • Hemanta Kalita

19 June 2020

We introduce Kuelbs–Steadman-type spaces ( K S p spaces) for real-valued functions, with respect to countably additive measures, taking values in Banach spaces. We investigate the main properties and embeddings of L q -type spac...

  • Review
  • Open Access
199 Citations
23,186 Views
31 Pages

23 June 2009

Novel applications of online pH determinations at temperatures from -35 °C to 130 °C in technical and biological media, which are all but ideal aqueous solutions, require new approaches to pH monitoring. The glass electrode, introduced nearly hundred...

  • Article
  • Open Access
47 Citations
12,314 Views
13 Pages

Frequency-dependent capacitance C(ω) is a rapid and reliable method for the determination of the state-of-charge (SoC) of electrochemical storage devices. The state-of-the-art of SoC monitoring using impedance spectroscopy is reviewed, and comp...

  • Article
  • Open Access
12 Citations
13,293 Views
13 Pages

With respect to aeronautical applications, the state-of-charge (SOC) and state-of-health (SOH) of rechargeable nickel–cadmium batteries was investigated with the help of the frequency-dependent reactance Im Z(ω) and the pseudo-capacitance...

  • Article
  • Open Access
4 Citations
3,901 Views
14 Pages

We conducted a prospective study, aimed to study whether the prevalence of mental disorders after birth differs by country of origin. Parturient mothers of Ethiopian origin, Former-USSR (FSU) origin, or nonimmigrant, native-Israeli origin (n = 974, a...

  • Article
  • Open Access
26 Citations
8,101 Views
12 Pages

Compared to the medical, economic and social implications of COVID-19 vaccinations, little attention has been paid to the ecological balance to date. This study is an attempt to estimate the environmental impact of two mRNA vaccines in terms of CO2 e...

  • Article
  • Open Access
13 Citations
9,178 Views
16 Pages

For lithium iron phosphate batteries (LFP) in aerospace applications, impedance spectroscopy is applicable in the flat region of the voltage-charge curve. The frequency-dependent pseudocapacitance at 0.15 Hz is presented as useful state-of-charge (SO...

  • Feature Paper
  • Review
  • Open Access
5 Citations
2,395 Views
21 Pages

The concept of pseudocapacitance is explored as a rapid and universal method for the state of health (SOH) determination of batteries and supercapacitors. In contrast to this, the state of the art considers the degradation of a series of full charge/...

  • Article
  • Open Access
2 Citations
2,173 Views
25 Pages

Modeling Forest Snow Using Relative Canopy Structure Metrics

  • C. David Moeser,
  • Graham Sexstone and
  • Jake Kurzweil

14 May 2024

Snow and watershed models typically do not account for forest structure and shading; therefore, they display substantial uncertainty when attempting to account for forest change or when comparing hydrological response between forests with varying cha...

  • Brief Report
  • Open Access
2 Citations
1,658 Views
6 Pages

Using a Linear Probe Ultrasound for the Detection of First-Trimester Pregnancies in the Emergency Department

  • Soheil Saadat,
  • Michelle Thao Nguyen,
  • Isabelle Nepomuceno,
  • Erinna Thai,
  • Ami Kurzweil,
  • Heesun Choi,
  • Shadi Lahham and
  • John Christian Fox

Linear probe point-of-care ultrasound (LPUS) presents a less invasive alternative for identifying intrauterine pregnancies (IUPs) compared to usual practice (transabdominal (TAUS) or transvaginal (TVUS) ultrasound). TAUS and TVUS can be invasive or p...

  • Feature Paper
  • Article
  • Open Access
11 Citations
4,805 Views
15 Pages

Differential capacity dQ/dU (capacitance) can be used for the instant diagnosis of battery performance in common constant current applications. A novel criterion allows state-of-charge (SOC) and state-of-health (SOH) monitoring of lithium-ion batteri...

  • Feature Paper
  • Article
  • Open Access
33 Citations
10,832 Views
21 Pages

21 June 2022

State-of-charge (SOC) and state-of-health (SOH) of different cell chemistries were investigated using long-time cycle tests. This practical guide illustrates how differential capacity dQ/dU (capacitance) obtained from discharge curves, impedance spec...