bluuebunny/crossref_metadata_2025_split huggingface dataset:
Фазовый пеленгатор с полуволновой базой для обзорной моноимпульсной РЛС
Authors: Авласёнок А. В. , Григорян Д. С. , Деркач С. Н. 
Published: December 2022

На примере фазово-фазового моноимпульсного пеленгатора в составе обзорной РЛС, сопровождающей цель «на проходе», проведен анализ точности измерения угла места цели на фоне внутренних шумов приемного тракта. Показана возможность измерения при широкой несканирующей диаграмме направленности антенны в угломестной плоскости и отношении сигнал/шум, достаточном лишь для обнаружения цели с требуемыми показателями качества.
Численное моделирование антенн радиолокационного измерителя параметров морского волнения
Authors: Касьянов А. О. 
Published: December 2022

Рассмотрено электродинамическое моделирование антенн радиолокационного измерителя параметров морского волнения самолета-амфибии Бе-200, разработанного Таганрогским государственным радиотехническим университетом по заданию и при участии Таганрогского авиационного научно-технического комплекса им. Г. М. Бериева.
Многокритериальный синтез коэффициентов весового фильтра сжатия сигналов с линейной частотной манипуляцией
Authors: Кириллов С. Н. , Поспелов А. В. 
Published: December 2022

Проведен многокритериальный синтез коэффициентов весового фильтра сжатия сигналов с линейной частотной манипуляцией, обеспечивающих заданные значения постоянной разрешения по времени, дисперсии ошибки измерения времени и уровня боковых лепестков сжатого сигнала. По сравнению с синтезированным фильтром использование в качестве коэффициентов весового фильтра отсчетов функции Хэмминга при количестве элементов приводит к проигрышу по перечисленным характеристикам.
Отношение сигнал/шум опорного сигнала в J-корреляционном методе пеленгации
Authors: Сорочан А. Г. 
Published: December 2022

Рассмотрен канал формирования опорного сигнала J-корреляционного метода пеленгации. Дан анализ формирования спектра выходного сигнала, определена оптимальная временная задержка в канале, обеспечивающая максимальное отношение сигнал/шум опорного сигнала.
Энергетическая эффективная площадь рассеяния объекта и другие интегральные характеристики в сверхширокополосной радиолокации
Authors: Авдеев В. Б. 
Published: December 2022

Критически проанализированы выдвинутые различными авторами предложения по обобщению понятия эффективная площадь рассеяния объекта на случай зондирующих сверхширокополосных сигналов. На основе перехода от парциальных частотных характеристик элементов радиолокационного канала к интегральным по спектру введены новые интегральные характеристики, в частности энергетическая (обобщенная) эффективная площадь рассеяния и ее автокорреляционная функция, удобные для описания процессов передачи — приема СШП-сигналов в канале.
Алгоритм управления извлечением информации при динамически изменяемом пространстве признаков
Authors: Ваганов М. С. , Мельников В. Ф. 
Published: December 2022

С использованием методов теории управляемых случайных процессов проведена аналитическая формализация процесса извлечения информации как взаимосвязанных компонент управления выбором признаков, их измерением и распознаванием по ним объектов. Синтезирован алгоритм управления извлечением информации при динамически изменяемом пространстве признаков таких объектов.
Строгий анализ структур типа Photonic Bandgap с прямоугольными координатными границами
Authors: Крыжановский В. Г. , Рассохина Ю. В. , Рудякова А. Н. 
Published: December 2022

Методом Галеркина с учетом особенностей поведения поля на ребре исследован спектр собственных волн микрополосковой линии передачи со щелью в заземляющей подложке. Построен алгоритм расчета обобщенных матриц рассеяния устройств на конечных отрезках микрополосковой (Photonic Bandgap) решетки, в частности, полосно-запирающих фильтров и фильтров гармоник.
Синтез параметров корректирующей цепи третьего порядка узкополосной усилительной ступени
Authors: Титов А. А. 
Published: December 2022

Предложена методика синтеза параметров четырехполюсной корректирующей цепи третьего порядка, позволяющая осуществлять расчет мощных узкополосных усилительных ступеней по таблицам нормированных значений элементов цепи. Приведены пример расчета ступени на транзисторе КТ939А, результаты машинного и натурного эксперимента, описание характеристик усилителя с полосой пропускания 425 ... 445 МГц и выходной мощностью 30 Вт.
Sonicate Fluid Cellularity Predicted by Transcriptomic Deconvolution Differentiates Infectious from Non-Infectious Arthroplasty Failure
Authors: Fisher Cody R. , Krull Jordan E. , Bhagwate Aditya , Masters Thao , Greenwood-Quaintance Kerryl E. , Abdel Matthew P. , Patel Robin 
Published: December 2022

Background:
Although cellularity is traditionally assessed morphologically, deep sequencing approaches being used for microorganism detection may be able to provide information about cellularity. We hypothesized that cellularity predicted using CIBERSORTx (Stanford University), a transcriptomic-based cellular deconvolution tool, would differentiate between infectious and non-infectious arthroplasty failure.

Methods:
CIBERSORTx-derived cellularity profiles of 93 sonicate fluid samples, including 53 from subjects who underwent failed arthroplasties due to periprosthetic joint infection (PJI) (abbreviated for the purpose of this study as PJIF) and 40 from subjects who had undergone non-infectious arthroplasty failure (abbreviated NIAF) that had been subjected to bulk RNA sequencing were evaluated.

Results:
Samples from PJIF and NIAF subjects were differentially clustered by principal component analysis based on the cellularity profile. Twelve of the 22 individual predicted cellular fractions were differentially expressed in the PJIF cases compared with the NIAF cases, including increased predicted neutrophils (mean and standard error, 9.73% ± 1.06% and 0.81% ± 0.60%), activated mast cells (17.12% ± 1.51% and 4.11% ± 0.44%), and eosinophils (1.96% ± 0.37% and 0.42% ± 0.21%), and decreased predicted M0 macrophages (21.33% ± 1.51% and 39.75% ± 2.45%), M2 macrophages (3.56% ± 0.52% and 8.70% ± 1.08%), and regulatory T cells (1.57% ± 0.23% and 3.20% ± 0.34%). The predicted total granulocyte fraction was elevated in the PJIF cases (32.97% ± 2.13% and 11.76% ± 1.61%), and the samples from the NIAF cases had elevated predicted total macrophage and monocyte (34.71% ± 1.71% and 55.34% ± 2.37%) and total B cell fractions (5.89% ± 0.30% and 8.62% ± 0.86%). Receiver operating characteristic curve analysis identified predicted total granulocytes, neutrophils, and activated mast cells as highly able to differentiate between the PJIF cases and the NIAF cases. Within the PJIF cases, the total granulocyte, total macrophage and monocyte, M0 macrophage, and M2 macrophage fractions were differentially expressed in Staphylococcus aureus compared with Staphylococcus epidermidis-associated samples. Within the NIAF cases, the predicted total B cell, naïve B cell, plasma cell, and M2 macrophage fractions were differentially expressed among different causes of failure.

Conclusions:
CIBERSORTx can predict the cellularity of sonicate fluid using transcriptomic data, allowing for the evaluation of the underlying immune response during the PJIF and NIAF cases, without a need to phenotypically assess cell composition.
Protocol for a multicenter study on (cost)effectiveness of the Back At work After Surgery (BAAS): a clinical pathway for knee arthroplasty
Authors: Strijbos Daniël O. , Sluis Geert van der , Houtert Wim F.C. van , Straat A. Carlien , Zaanen Yvonne van , de Groot Stephan , Klomp Simon , Krijnen Wim P. , Kooijman Carolien M. , Brand Igor van den , Reneman Michiel F. , Boymans Tim A.E.J. , Kuijer P. Paul F.M. 
Published: December 2022

Abstract
Background
Optimizing return to work (RTW) after knee arthroplasty (KA) is becoming increasingly important due to a growing incidence of KA and poor RTW outcomes after KA. We developed the Back At work After Surgery (BAAS) clinical pathway for optimized RTW after KA. Since the effectiveness and cost analysis of the BAAS clinical pathway are still unknown, analysis on effectiveness and costs of BAAS is imperative.
Method
This protocol paper has been written in line with the standards of Standard Protocol Items: Recommendations for Interventional Trails. To assess the effectiveness and cost-effectiveness for RTW, we will perform a multicenter prospective cohort study with patients who decided to receive a total KA (TKA) or an unicompartmental KA (UKA). To evaluate the effectiveness of BAAS regarding RTW, a comparison to usual care will be made using individual patient data on RTW from prospectively performed cohort studies in the Netherlands.
Discussion
One of the strengths of this study is that the feasibility for the BAAS clinical pathway was tested at first hand. Also, we will use validated questionnaires and functional tests to assess the patient’s recovery using robust outcomes. Moreover, the intervention was performed in two hospitals serving the targeted patient group and to reduce selection bias and improve generalizability. The limitations of this study protocol are that the lead author has an active role as a medical case manager (MCM) in one of the hospitals. Additionally, we will use the data from other prospective Dutch cohort studies to compare our findings regarding RTW to usual care. Since we will not perform an RCT, we will use propensity analysis to reduce the bias due to possible differences between these cohorts.
Planning a resilient neighborhood via identification of earthquake vulnerability factors: the case study of Kouy-e Noh Dareh in Mashhad
Authors: Bastani Mojdeh , Hashemi Sajjad , Khairabadi omid 
Published: December 2022

Abstract
The expansion of urbanization is often followed by the growth of slums and formation of many improper settlements in cities. Earthquake is one of the most prominent hazards that many countries have to deal with. Several factors such as improper land use, faulty design and construction as well as inefficient urban infrastructures can increase the scope of the damage resulting from earthquakes in human settlements. The area under study, namely Kouy-e Noh Dareh, is located on the outskirts of the populous city of Mashhad, Iran. It is among the less privileged districts of the city and has poor physical conditions and numerous inefficiencies, including the old age and deterioration of residential units. In addition, it is rather unsuitable for any construction in terms of natural conditions. All these factors pave the way for the increased emergence of natural risks and occurrence of natural disasters, including earthquakes. The goal of this study was to plan a resilient neighborhood via identification of earthquake vulnerability factors. It attempted to determine the level of vulnerability of informal settlements against earthquakes by analyzing their current condition. The span of the vulnerable areas in the selected site were specified via factor analysis using six factors: convenient access to services, strengthening the physical structure, environmental compatibility, improving road networks, improving the public transport and improving social participation. It was found out that the eastern and western areas of the neighborhood are highly vulnerable against earthquake.
Cloud Computing Synchronization: Case of Late Emails’ Social Impact
Authors: Taifi Nouha 
Published: December 2022

Abstract
The latest research on cloud computing advances theories and applications in the various existing environments. The adoption of cloud computing is widely in tools as social networks, emails, applications and others. The research discusses the future of a specific type of communication tool -the emails, stating that the cloud computing supporting this tool needs further development considering the content of the email; we discuss the social aspects of these tools related to the impact of mis-synchronization on the user. The research analyzes the variables of the email content -as its type of content ranging from professional to amateur, and proposes theories and hypothesis. The research method is a questionnaire dedicated to the most strategic employees of an organization in the service sector. The results show that there are various point of views on the role of synchronization in the emails and that there is a social impact emerging from it indeed.
Network operation without safety chlorination in Zürich
Authors: Klein H.-P. , Forster R. 
Published: December 2022

Abstract
In 1993 the Zürich Water Supply started a full scale test of distributing drinking water without adding any chemicals at the outlet of the plants for network protection. The introduction of this test was planned over several years, during which the applied dose of disinfectants was gradually reduced. No problems occurred in the distribution network during the disinfectant-free operation period. The median of the heterotrophic plate count (HPC) increased from 0-4 to 0-7 CFU/mL in the treated water and from 0-3 to 0-5 CFU/mL at the sampling points in the network. Occasional increases in HPC to 100-300 CFU/mL which also occurred during periods of network protection, were removed by flushing with water at a velocity of 0.5 m/s.
Overview of American disinfectant residual practices
Authors: Clement J. A. 
Published: December 2022

Abstract
In the USA chlorine is used extensively to inactivate pathogens in drinking water. Beyond this fundamental goal, the practice of chlorination involves maintaining a disinfectant residual in the distribution system to minimise biofilm formation and as an additional safeguard against pathogen intrusion. In contrast to many European countries the disinfectant residuals typically maintained in the distribution system are relatively high. The primary factors that are driving high disinfectant residuals include regulation, and using chlorine as a primary disinfectant rather than other advanced treatment systems. Lower disinfectant residuals are likely in the future with changes in regulations, installation of advanced treatment processes, and improvements in the distribution system.
A comprehensive study of water consumption in the city of Córdoba, Spain
Authors: de Miguel C. , Montesinos M. P. , Ayuso J. L. , Galisteo M. 
Published: December 2022

Abstract
The results of a comprehensive study of drinking water consumption in Córdoba, Spain, are presented in this paper. Annual, weekly and daily demand patterns have been estimated using 5-year water supply and billing data. Unaccounted-for water has also been analysed, obtaining useful information for both urban development planning and water distribution system modelling. This work may serve as a reference to cities whose size, population and other features are similar to those of Córdoba.
Effects of chlorine disinfection on RO membrane biofouling at low feed water temperature for wastewater reclamation
Authors: Yu Tong , Sun Shoufang , Zhao Yunlong , Wang Lingxue , Li Ping , Chen Zhuo , Bi Xuejun , Shi Xueqing 
Published: December 2022

Abstract
Chlorine disinfection has been reported to be ineffective in controlling RO membrane biofouling in some projects. Feed water temperature is a crucial factor in the formation of RO membrane biofouling. It has a positive impact on the wide application of the RO process to ascertain whether chlorine disinfection can alleviate the membrane biofouling at low temperatures. In this study, the effects of chlorination on the RO membrane biofouling at low feed water temperature (10 °C) were investigated by a lab-scale RO apparatus. The final normalized flux was 0.33 and 0.29 with and without chlorination, respectively. According to the normalized flux decline curve, chlorination could not alleviate the RO membrane fouling at low temperature. Based on the intermediate blocking model, chlorination increased the membrane fouling potential of the feed water. At low temperature, the biofilm on the membrane with chlorination was thinner and denser than that without chlorination. In addition, the membrane with chlorination contained more foulants and dissolved organic matter than that without chlorination. Chlorination failed to continuously prevent bacteria accumulation on RO membrane at low temperature, but screened out bacteria that were potentially more suitable for the low-temperature membrane environment.
SNP-based Computational Analysis Reveals Recombination-associated
Genome Evolution in Humans
Authors: Liu Guoqing , Zhang Qiguo 
Published: December 2022

Background:
Meiotic recombination is an important source of genetic variation, but how recombination
shapes the genome is not clearly understood yet.

Objective:
Here, we investigate the roles of recombination on human genome evolution from two aspects:
How does recombination shape single nucleotide polymorphism (SNP)-related genomic variation
features? Whether recombination drives genome evolution through a neighbor-dependent mutational bias?

Methods:
We analyzed the relationship of recombination rate with mutational bias and selection effect
at SNP sites derived from the 1000 Genomes Project.

Results:
Our results show that SNP density, Ts/Tv, nucleotide diversity, and Tajima's D were positively
correlated with the recombination rate, while Ka/Ks were negatively correlated with the recombination
rate. Moreover, compared with non-coding regions, gene exonic regions have lower nucleotide diversity
but higher Tajima's D, suggesting that coding regions are subject to stronger negative selection but have
fewer rare alleles. Gene set enrichment analysis of the protein-coding genes with extreme Ka/Ks ratio
implies that under the effect of high recombination rates, the genes involved in the cell cycle, RNA processing,
and oocyte meiosis are subject to strong negative selection. Our data also support S (G or C) >
W (A or T) mutational bias and W>S fixation bias in high recombination regions. In addition, the
neighbor-dependent mutational bias was found to be stronger at high recombination regions.

Conclusion:
Our data suggest that genetic variation patterns, particularly the neighbor-dependent mutational
bias at SNP sites in the human genome, are mediated by recombination.
Novel Digital Filter Design For Noise Removal in Fetal ECG Signals
Authors: Maraikkayar S.M.Seeni Mohamed Aliar , Tamilselvi R. , Beham M.Parisa , Hasan M.Amjath 
Published: December 2022

Background
In Maternal and Fetal Health care research, it is necessary to analyse both Maternal Electrocardiogram (ECG) and Fetal ECG(FECG) for analysing the health status of the mother and fetus. Noises are nothing but the presence of interferences due to the powerline, motion artifacts, electromyogram and baseline wander during ECG measurement. In this scenario, the cardiotocography (CTG) signal plays a vital role in the measurement of FECG, which includes Fetal Heart Rate (FHR) and Uterine Contractions (UC). In the FECG signal, it is necessary to filter the noises present to have an accurate classification of the fetus condition. In recent literatures, Infinite Impulse Response (IIR), Finite Impulse Response (FIR) and Adaptive filters are predominantly used for noise removal in FECG signals. Still now, achieving a high Signal-to-Noise Ratio (SNR) is a major challenge in noise removal in biomedical signal processing. Motivated by the above-said issues, in this work, a novel filter design named AdaptIIR Filter is proposed to improve the SNR value.

Methods
In the proposed design, an adaptive filter is convolved with the IIR filter; the resultant is again convolved with the Chebyshev filter to improve the filtering response of the system. The system performance has been evaluated based on the signal-to-noise ratio and power of the FECG signal.

Results
The experimental results have also been compared with the state-of-the-art filters, and it is observed that the proposed filter design achieves high SNR and signal power of 39.92dB and -100dB, respectively.

Conclusion
Filtering operation plays a very important role in the noise analysis of biological signals for better accuracy. In the order of 5, the filter has shown to have the best result in terms of SNR and average power of the signal.
The Lower Lip Profile Change During Total Distalization of the
Mandibular Dentition
Authors: Kim Bumjin , Shin Jeong Won , Hong Christine , Yun Pyo Ahn , Baik Un-Bong , Kim Young Ho , Chae Hwa Sung 
Published: December 2022

Objectives:
This study aimed to determine the factors influencing the lower lip profile
during Class III lower total arch distalization camouflage treatment.

Methods:
The cohort included 45 patients diagnosed with skeletal class III
malocclusion. These patients underwent camouflage orthodontic treatment with
lower arch total distalization. Lateral cephalograms were taken at the
pretreatment and posttreatment stages. Cephalometric measurements were
analyzed to unravel the influencing factors of the lower lip profile. This
study defined new variables, i.e., CK and CKA, for detailed
soft tissue analysis.

Results:
Novel soft tissue measurements presented in this study showed statistically
significant changes after treatment. The CK angle and L1 to A Pog, L1 to NB,
and IMPA were statistically correlated. Simple regression analysis was
performed between variables. The formula was ΔCKA = 0.79(Δ L1
to NB) -1.6, and multiple regression resulted in ΔCKA = 0.5(Δ
L1 to NB) – 0.42 (‘LL to Eline’, before treatment).

Conclusion:
The present study provided evidence that the lower lip evaluations, including
the novel CKA and CKHA, were significantly related to the mandibular incisor
position during total distalization of the mandibular dentition. The results
demonstrated that clinically significant lip retraction could be obtained.
Therefore, non-extraction with distalization must be suggested as the first
treatment option in mild skeletal class III malocclusion patients.
Survival and Analysis of Predictors of Mortality in Patients Undergoing Hemodialysis in a Rural Hospital in Puducherry, India: A Retrospective Cohort Study
Authors: Kumar P Ravi , Vinayagmoorthy V , Dongre Amol , Deshmukh Pradeep 
Published: December 2022

Background
Despite the advent of dialysis technology, the survival of patients on hemodialysis (HD) is not encouraging. There is little information available regarding the prognostic factors of HD, its population characteristics, or outcomes in India.

Objectives
We attempted to describe the profile of patients on HD, estimate the mean days of their survival and to determine the various factors associated with their survival.

Materials and Methods
It was a retrospective cohort study conducted on patients who were on maintenance HD, registered during the five-year period between 1st January 2014 and 31st December 2018 in a tertiary care teaching hospital in Rural Puducherry, South India. Demographic, hematological, biochemical, electrocardiographic, echocardiographic parameters and death during follow-up were extracted from the dialysis database after de-identification. The survival rate was calculated using Kaplan- Meier Curves and Cox Regression analysis was done to estimate the adjusted hazard ratio.

Results
The median survival of the 229 eligible patients on HD was 819 days. Cardiac pathology accounted for 25.7% of those deaths and 33.9% was sudden death. Adjusted Cox proportional model showed the presence of Left Ventricular Hypertrophy (LVH) (HR: 78.1), increase in phosphorus (HR: 1.26), decrease in haemoglobin (HR: 0.78), and decrease in serum albumin (HR: 0.52) were significant bad prognostic factors.

Conclusion
Screening for LVH, anemia, hypoaluminemia and hyperphosphatemia amongst HD patients and managing them to prevent these bad prognostic factors has the potential to improve their survival.