bluuebunny/crossref_metadata_2025_split huggingface dataset:
Web business computing tool in support to photovoltaic prosumers
Authors: (Nechifor) Roman M , Sălceanu A 
Published: October 2022

Abstract
Electricity is one of the most essential keys in the evolution of nowadays civilization. Nevertheless, huge levels of electric power production and consumption could cause a negative impact on the environment, such as poor air quality, greenhouse emissions, climate change, and ecological disasters. Consequently, today's society needs sustainable solutions that can meet the geopolitical, socio-economic and climatic difficulties that energy production requires. Understanding this, international development programs have been modified approaching the use of sustainable sources of energy, which are gradually becoming economically viable. Among the valid options, photovoltaic (PV) systems have reached both the general and industrial public, becoming a sustainable energy source. Given these things, to gain a boost and to maintain a vital position in the market, it is necessary for prosumers to be aware and to recognize the mobility of characteristics in the fields of finance sphere, but also the structure of indicators able to measure a specific reality. We are calling it "specific reality" because we do not have enough business intelligence instruments in this sector and according to Eurostat, in 2020 only 3.09% of the electricity production in Romania came from photovoltaic panels and the increase was below one percent compared with 2019 when it was only 2.98%. The output power of a solar installation can be measured in several ways, including the competitiveness of the photovoltaic installations. To manipulate and guide the performances in this segment, we need Success Assessment Tools, that check a collection of characteristics used to calculate the outcomes and profitability of a prosumer’s movements. According to National Energy Regulatory Authority, in May 2020 there were only 514 prosumers in Romania (455 individuals, 59 legal entities). A huge untapped opportunity could be represented in Romania by individual households. According to a study custom-built by the European Commission, published in 2017, the theoretical Romanian potential would be about 3.36 million residential prosumers.
Influence of the Geometrical Parameters of a Planar Yagi-Uda Antenna on its Performances
Authors: Constantinescu C , Păcurar C , Munteanu C , Giurgiuman A , Andreica S , Gliga M 
Published: October 2022

Abstract
The paper follows the construction of a planar Yagi Uda antenna and the influence of the geometrical parameters on its characteristic parameters. According to the studies conducted on classical Yagi Uda antennas, modifying their geometrical parameters can lead to the improvement of the antenna function. Thus, the authors will consider modifying the number of directors, the distance between the fed dipole and the first director, the distance between the directors and the length of the directors in an attempt to determine their influence on the antenna’s characteristic parameters. All the results are compared and the similitude between planar and classical antenna is highlighted. Some of the most important antenna parameters were analyzed namely S parameters, gain, directivity, frequency bandwidth and radiation pattern.
The influence of the patch antennas emissions on the human head
Authors: Păcurar C , Țopa V , Giurgiuman A , Munteanu C , Constantinescu C , Gliga M , Andreica S 
Published: October 2022

Abstract
The influences of the antenna’s emissions on the human body are to be investigated because in our days, as a simple example, the mobile phone is permanently in use, on day or night. The long-time human exposure at the electromagnetic field radiations is obvious and there exist the possibility that these can affect the human health. The influences of the circular patch antenna’s emissions on the human head are analyzed at high frequency in this paper. First the patch antenna is modelled and simulated to extract its specific parameters and to represent the emitted electric and magnetic field around it. Next the human head is considered near to the patch antenna in position that imitates the mobile phone at ear and the electric field, the magnetic field, and the specific absorption rate (SAR) are represented to determine the antenna’s emissions at its operating frequency. So, the main aim of the paper is the high frequency analyzes of the circular patch antennas to investigate the influence of their emissions on the human head. The results obtained are compared and reported to the standards and legislation in force on human occupational exposure, to verify that the limits are met.
A novel approach for power load forecast based on GAN data augmentation
Authors: Boicea V A , Ulmeanu A P , Vulpe-Grigoraşi A 
Published: October 2022

Abstract
At present, the concept of Smart Grid is intimately related to huge volumes of data generation, known as Big Data. These play a key role as far as the improvement of the network operation is concerned and, above all, when it comes to energy consumption. Hence the load forecast based on Big Data processing represents a reliable alternative in carrying out an accurate load prediction. As such, a new approach for the power load forecast, based on GAN data augmentation, for a hospital, within a Smart Grid, will be presented in this work.
Digitalizing the life-saving mechanical surgical staplers, for better outcomes in the surgical field
Authors: Dîrzu C V , Munteanu M S 
Published: October 2022

Abstract
This paper attempts to demonstrate the need of implementing data transfer solutions from a mechanical surgical stapler to a display contained in a surgical image chain system, used broadly in any operating theatre, and bring a valid technical solution to fulfil this need. The object of the writing is to present a working electronic system that can be implemented in a circular surgical stapler and bring solid conclusions after testing on animal tissue. The setup contains an Arduino-based system that is capable to detect the pressure exercised on a tissue and display the results on a monitor that is easy to be seen by all the surgical team members, using a wireless connection. The system’s role is to provide information to every surgeon in the OR and give them the opportunity to make a collective decision regarding the moment of firing the surgical stapler, in the safest conditions.
Electronic upgrades to a purely mechanical surgical stapler, for better outcomes in a vital surgical maneuver
Authors: Dirzu C V , Munteanu M S 
Published: October 2022

Abstract
This paper attempts to demonstrate the need of implementing an electronic system to collect data, command and control a surgical mechanical stapler, being broadly used in most of the intestinal resections for different pathologies. By implementing this electronic system, we will be able to eliminate some of the most important risk factors in the instrument steps to use, that can bring critical damage to the patient outcomes. The object of the writing is to present a working electronic system that can improve the use of such a device and to bring solid conclusions after testing on animal tissue. The setup contains an Arduino-based system that is capable to sense the pressure exercised on a tissue and automatically control the tension applied to it, before reaching a critical point to irreversibly damage the tissue. The system’s role is to eliminate the risks of human errors when using the surgical stapler and automatize the entire process, easing the overloaded and stressful workflow of the surgeons.
Low-cost monitoring system for temperature and pressure in steam sterilizer
Authors: Ivaşcu D A , Ciubucă R , Lodin A , Munteanu M 
Published: October 2022

Abstract
This article presents the implementation of an electronic system for checking the pressure and temperature of a steam sterilizer, designed for dental offices. As the system was developed on the Arduino platform, the developed prototype has the advantage of a low-cost system (about 120 Euros), but in the same time it has the accuracy of measurements, the results obtained being consistent with the data measured using a reference system (Datalogger produced by Tecnosoft Italy).
Plasma surface pretreatment to improve interfacial adhesion strengths of sputtered Cu on polyimide film
Authors: Wang Enze , Song Yutao , Shang Lunlin , Zhang Guangan , Wang Shunhua 
Published: October 2022

Abstract
The development of electronic communication and related fields puts forward urgent requirements for the research and development of high-frequency and high-speed flexible copper-clad laminate coating technology. However, magnetron sputtering technology faces the problem of poor adhesion between flexible metal films and polymer substrates. This study introduces reactive chemical groups on the PI surface to improve wettability and produce functional groups conducive to bonding with metals. The results showed that plasma pretreatment increases the surface roughness and increases the surface energy of PI films. Furthermore, the surface chemical structure of PI was changed. It was found that the adhesion strength of the Cu film and PI substrate was related to the formation of C-N functional groups. Results indicated that Cu films deposited on PI pretreat with Ar-N2 plasma have higher density and lower porosity. Moreover, the adhesion test revealed that the adhesion properties of Cu and PI were significantly improved by plasma pretreat.
Surface energetics mediated charge transfer and exciton transfer in cation-adsorbed rubrene/PbS nanocrystal hybrids
Authors: Qiao Jia-Wei , Chen Zhi-Hao , Liu He-Yuan , Li Xi-You , Guo Jia-Jia , Qin Chao-Chao , Wang Xingzhu , Pu Yong-Jin , Hao Xiao-Tao 
Published: October 2022

Abstract
Organic molecule and inorganic nanocrystal (NC) hybrids have become a promising platform for photon energy conversion. Although surface energetics modification has proven effective in promoting triplet energy transfer, singlet energy transfer and charge transfer have been barely investigated. Here, we systematically clarify the photophysical dynamics of charge, singlet exciton, and triplet exciton within the energy conversion process based on hybrids of rubrene and Cd2+-adsorbed PbS NCs. It is found that a considerable number of charges in rubrene molecules can be transferred to cation-induced surface states in the ∼2 ps time scale with high efficiency to trigger a delayed biexciton effect, which provides a novel approach to uncover the intermediate role of NC surface states. For the triplet exciton, strong interaction with surface states is investigated with a recycling energy transfer of around 14% efficiency, which is found to be insensitive to changes in NC surface energetics. As a result, the maximum photoluminescence lifetime of PbS NCs was enhanced by about 38%. This work reveals the neglected photo-physical dynamics in the transfer process between organic molecules/inorganic NCs and validates the capability of the surface state in sensitization of organic charges and excitons.
Water driven phase transitions in Prussian white cathode materials
Authors: Nielsen Ida , Dzodan Dj , Ojwang D O , Henry P F , Ulander A , Ek G , Häggström L , Ericsson T , Boström H L B , Brant W R 
Published: October 2022

Abstract
Prussian white (PW,

N

a

2

Fe

Fe

CN

6

⋅

z

H

2

O

) is a promising cathode material for use in sodium-ion batteries for large-scale energy storage applications, which demand long cycling life-times. However, for non-aqueous battery applications PW must not contain any water, and yet dehydration induces a large volume change destabilizing the structure and reducing the cycling life. The material undergoes multiple phase transitions as a function of both the sodium and water content, however, the mechanism behind is poorly understood. Here, we use neutron diffraction to explore the influence of water on the structure of PW. For the first time, two structures for a single composition of PW were observed near room temperature independent of the synthesis method. These structures differ in the FeN6 and FeC6 octahedral tilting configurations, which is connected to the ordering of water in the framework. The removal of water modulates the magnitude of pre-existing structural distortions, if it is itself disordered within the structure, rather than modifying the nature of the distortions. These results provide a robust fundamental understanding of the chemical driving force impacting the nature and magnitude of structural distortions in Prussian blue analogues. The insights provide guidance for designing tilt-engineering ultimately enabling new materials with enhanced long-term electrochemical performance in battery applications.
A tunable frequency selective surface integrated high isolation MIMO antenna for THz applications
Authors: Ashvanth Balu 
Published: October 2022

Abstract
A novel tunable triple stop band frequency selective surface (FSS) is designed and integrated with the multiple inputs multiple outputs (MIMO) antenna as an isolation structure to verify its validity. The proposed FSS renders excellent isolation characteristics for the reported MIMO system which is verified from the ECC and DG plot. In FSS, the graphene materials are attached at the end of three stubs to realize tuning over the respective bands. The center frequency of the attained triple bands shows an obvious shift from 2.2 to 2.4 THz, 3.15 to 3.5 THz, and 4.6 to 4.9 THz on increasing the chemical potential of graphene from 0 to 1.5 eV. The tuning range can be enhanced by further increasing the applied potential and hence its service might extend to multi or wideband MIMO systems. The proposed FSS unit cell achieves miniaturization to the level of 0.17
λ
o. The validity of the proposed FSS is tested with a linear array MIMO antenna. The designed MIMO antenna consists of two linear array antennas separated by 40 μm with each linear array is made up of three individual antenna elements. The introduction of FSS between the linear arrays provides the minimum isolation of 30 dB. The presented highly isolated linear array MIMO antenna realizes maximum efficiency and gain of 83%, 12.2 dBi respectively. The FSS unit cell structure is modeled and their electromagnetic characteristics are simulated by the 3D electromagnetic simulator CST Studio Suite. The auto meshing technology and frequency domain solver are used to acquire S-parameter. This wearable antenna is a significant component in tracking and monitoring systems including the miniaturized multiband antennas exhibiting stable radiation characteristics during bending, stretching, and crumpling conditions to suit military applications. Nowadays, wearable antennas are being designed for military applications by perfectly matching the industry requirements such as thin, low profile, lightweight, low maintenance, robust, conformal, easy integration into clothing without affecting the movement of the soldier.
From the Littlewood-Paley-Stein inequality to the Burkholder-Gundy inequality
Authors: Xu Zhendong , Zhang Hao 
Published: October 2022

Let

{

T

t

}

t
>
0

\{\mathsf {T}_t\}_{t>0}

be a symmetric diffusion semigroup on a

σ
\sigma

-finite measure space

(
Ω
,

A

,
μ
)

(\Omega , \mathscr {A}, \mu )

and

G

T

G^{\mathsf {T}}

the associated Littlewood-Paley

g
g

-function operator:
\[

G

T

(
f
)
=

(

∫
0
∞

|
t

∂

∂
t

T

t

(
f
)
|

2

d

t

t

)

1
2

.

G^{\mathsf {T}}(f)=\Big (\int _0^\infty \left |t\frac {\partial }{\partial t} \mathsf {T}_t(f)\right |^2\frac {\mathrm {d}t}{t}\Big )^{\frac 12}.

\]
The classical Littlewood-Paley-Stein inequality asserts that for any

1
>
p
>
∞

1>p>\infty

there exist two positive constants

L

p

T

\mathsf {L}^{\mathsf {T}}_{p}

and

S

p

T

\mathsf {S}^{\mathsf {T}}_{p}

such that
\[

(

L

p

T

)

−
1

‖

f
−

F

(
f
)

‖

p

≤

‖

G

T

(
f
)

‖

p

≤

S

p

T

‖

f

‖

p

,

∀
f
∈

L
p

(
Ω
)
,

\big (\mathsf {L}^{\mathsf {T}}_{ p}\big )^{-1}\big \|f-\mathrm {F}(f)\big \|_{p}\le \big \|G^{\mathsf {T}}(f)\big \|_{p} \le \mathsf {S}^{\mathsf {T}}_{p}\big \|f\big \|_{p}\,,\quad \forall f\in L_p(\Omega ),

\]
where

F

\mathrm {F}

is the projection from

L
p

(
Ω
)

L_p(\Omega )

onto the fixed point subspace of

{

T

t

}

t
>
0

\{\mathsf {T}_t\}_{t>0}

of

L
p

(
Ω
)

L_p(\Omega )

.

Recently, Xu proved that

L

p

T

≲
p

\mathsf {L}^{\mathsf {T}}_{ p}\lesssim p

as

p
→
∞

p\rightarrow \infty

, and raised the problem about the optimal order of

L

p

T

\mathsf {L}^{\mathsf {T}}_{ p}

as

p
→
∞

p\rightarrow \infty

. We solve Xu’s open problem by showing that this upper estimate of

L

p

T

\mathsf {L}^{\mathsf {T}}_{ p}

is in fact optimal. Our argument is based on the construction of a special symmetric diffusion semigroup associated with any given martingale such that its square function

G

T

(
f
)

G^{\mathsf {T}}(f)

for any

f
∈

L
p

(
Ω
)

f\in L_p(\Omega )

is pointwise comparable with the martingale square function of

f
f

. Our method also extends to the vector-valued and noncommutative setting.
Poisson approximation and Weibull asymptotics in the geometry of numbers
Authors: Björklund Michael , Gorodnik Alexander 
Published: October 2022

Minkowski’s First Theorem and Dirichlet’s Approximation Theorem provide upper bounds on certain minima taken over lattice points contained in domains of Euclidean spaces. We study the distribution of such minima and show, under some technical conditions, that they exhibit Weibull asymptotics with respect to different natural measures on the space of unimodular lattices in

R

d

\mathbb {R}^d

. This follows from very general Poisson approximation results for shrinking targets which should be of independent interest. Furthermore, we show in the appendix that the logarithm laws of Kleinbock-Margulis [Invent. Math. 138 (1999), pp. 451–494], Khinchin and Gallagher [J. London Math. Soc. 37 (1962), pp. 387–390] can be deduced from our distributional results.
Insect Gap Junctions Could Be a Potential Target for Pest Management
Authors: Sharma Prem Chand , Negi Nitika , Thakur Himanshu , Battu Jabez Raju , Turnbull Matthew 
Published: October 2022

AbstractGap junctions are integral membrane proteins that play a role in cell-to-cell communication. They are coded by the functional genes called connexins in chordates and innexins in invertebrates. However, recently pannexins were also found in mammalian genomes, which are homologous to insect innexins. Gap junction intercellular communication (GJIC) has different functions ranging from their role in ontogenesis to the transfer of intracellular signal molecules and minimizing the adverse effects of xenobiotics by dilution and steady-state catabolism. Perturbations of these gap junctions are known to promote cancers besides, and many tumor inducers reduce the functioning of these gap junctions. Insect gap junctions play a crucial role in the development of insects and perhaps might be one of the reasons for the success of insects on terrestrial habitats. Majority of the work on innexins was done on Drosophila melanogaster Meigen, 1830 (Diptera: Drosophilidae), and its innexins regulate size of the central nervous system, embryonic gut formation, metamorphosis, and the fertility of germ lines in the reproductive system. There are several insecticides like cyclodienes, organochlorines, phenypyrazoles, synthetic pyrethroids, avermectins, milbemycins, oxadiazines, semicarbazones, meta-diamides, isoxazolines which target ion channels in the insects, but there is no evidence that supports the possible toxic effects of insecticides on insect gap junctions. In this review, we discuss the importance of insect gap junctions and how they could be a potential target for chemical pest management.
Novel Therapies on the Horizon of Hypertension Management
Authors: Blazek Olivia , Bakris George L 
Published: October 2022

Abstract

Background
The rates of uncontrolled hypertension, along with downstream cardiovascular outcomes, has been worsening in this country. Despite the plethora of antihypertensive medications on the market, the prevalence of resistant hypertension (RH) is estimated to be 13.7%. Therefore in addition to increased clinical education and focus on lifestyle management of hypertension and medication compliance, new therapies are needed to address this rise in hypertension.

Methods
A systematic review of the available medical literature was performed to identify emerging treatment options for RH.

Results
Six different pharmacologic classes and 2 procedural interventions were identified as being appropriate for review in this paper. The pharmacologic classes to be explored are non-steroidal mineralocorticoid receptor antagonists, aminopeptidase A inhibitors, dual endothelin antagonists, aldosterone synthetase inhibitors, atrial natriuretic peptide inhibitors, and attenuators of hepatic angiotensinogen. Discussion of procedural interventions to lower blood pressure will focus on renal denervation and devices that increase carotid baroreceptor activity.

Conclusions
Promising medication and procedural interventions are being developed and studied to expand our treatment arsenal for patients with uncontrolled essential hypertension and RH.
Parental methylation mediates how progeny respond to environments of parents and of progeny themselves
Authors: Morgan Britany L , Donohue Kathleen 
Published: October 2022

Abstract

Background and Aims
Environments experienced by both parents and offspring influence progeny traits, but the epigenetic mechanisms that regulate the balance of parental vs. progeny control of progeny phenotypes are not known. We tested whether DNA methylation in parents and/or progeny mediates responses to environmental cues experienced in both generations.

Methods
Using Arabidopsis thaliana, we manipulated parental and progeny DNA methylation both chemically, via 5-azacytidine, and genetically, via mutants of methyltransferase genes, then measured progeny germination responses to simulated canopy shade in parental and progeny generations.

Key Results
We first found that germination of offspring responded to parental but not seed demethylation. We further found that parental demethylation reversed the parental effect of canopy in seeds with low (Cvi-1) to intermediate (Col) dormancy, but it obliterated the parental effect in seeds with high dormancy (Cvi-0). Demethylation did so by either suppressing germination of seeds matured under white-light (Cvi-1) or under canopy (Cvi-0), or by increasing the germination of seeds matured under canopy (Col). Disruption of parental methylation also prevented seeds from responding to their own light environment in one genotype (Cvi-0, most dormant), but it enabled seeds to respond to their own environment in another genotype (Cvi-1, least dormant). Using mutant genotypes, we found that both CG and non-CG DNA methylation were involved in parental effects on seed germination.

Conclusions
Parental methylation state influences seed germination more strongly than does the progeny’s own methylation state, and it influences how seeds respond to environments of parents and progeny in a genotype-specific manner.