Analogy Method Research Articles

Auricular epithesis-Blending digital & conventional techniques

Auricular epithesis is the most challenging in maxillofacial reconstruction. The advent of the digital technology in the field of the maxillofacial prosthesis ensures accuracy and precision. This paper highlights the case of a 34-year patient of an alleged road traffic accident with resultant in traumatic partial avulsion of the left ear. The data acquisition of the healthy ear was captured using a Computed Tomography Machine and mirrored using the Geomagic freeform Software to mirror the healthy ear into the defect area. The mirrored image was then processed to a watertight model for 3D printing. Stereolithography (SLA) was used to print the model followed by which the silicone epithesis was fabricated. This case report also explains about the various techniques to capture the data digitally and the several softwares that are available to process the data. Blending both analogue and digital method, an auricular epithesis can be made more lifelike, comfortable and functional thereby improving the quality of life of individuals with ear deformities.

The high‐temperature creep behavior transition in stoichiometric nanocrystalline (Pux,U1−x)O2 mixed oxides

AbstractThe study of high‐temperature creep properties of (Pu,U)O2 mixed oxides (MOX) ceramics is an increasingly important and attractive issue in the field of nuclear fuels. Using the molecular dynamics method, we study the creep behavior and creep mechanism transition of nanocrystalline (NC) MOX affected by temperature, stress, grain size, and Pu contents. It is found that the creep of NC MOX is dominated by diffusional creep and larger stress can activate the grain boundary sliding. At the Bredig transition temperature of MOX, its anionic sublattice pre‐melts, which increases the creep rate due to intensified ions diffusion. Thus, the increase of temperature and stress leads to a transition in the creep mechanism from Coble creep with grain boundary sliding to Nabarro–Herring creep. Based on the method of analogy, we develop a theoretic model of the cationic vacancy concentration rate for high‐temperature diffusional creep of NC MOX. This model can well predict the cationic vacancy concentration in the secondary creep stage. The findings of this study could not only give us a deep understanding of the creep behaviors of MOX ceramics at higher temperatures, but provide valuable insights in the variations of cationic vacancy concentration during steady‐state creep stage of NC MOX.

Comparative Analysis of Analogue and Digital Methods for Magnetic Flux Estimation in the Core of a Medium-Voltage Voltage Transformer Operating Under Ferroresonance Conditions

The main objective of the research described in the article was to determine the following: Is it possible to estimate the magnetic flux linkage in the core of a voltage transformer using analogue or digital methods? Will it be possible to estimate it approximately both in the normal state and in the state of deep core saturation (ferroresonant state)? The research aimed to identify the advantages and disadvantages of both proposed estimation methods. As part of the research described in this paper, a simulation model was developed and executed in the MATLAB/Simulink environment to generate a series of secondary voltage and flux waveforms in voltage transformers. The secondary voltage and flux waveforms were modelled under ground fault conditions, initiating ferroresonance oscillations in the medium-voltage network. To determine the associated flux from the simulated secondary voltages of the voltage transformers, an analogue integration circuit, a voltage analogue input circuit and a numerical integration algorithm with offset elimination were developed and implemented in an STM32 microcontroller. The obtained reference flux waveforms were used to verify the accuracy of the estimation of flux waveforms obtained using the analogue and digital methods. As a result, it was determined that both methods allow for a relatively accurate estimation of the periodic component of the magnetic flux. It also presented how both methods respond to the presence of slowly changing (aperiodic) components. Possible applications were proposed in order to create an innovative criterion for detecting ferroresonance oscillations.

APLICATIVO UNIVERSITÁRIO DO BEM: DESENVOLVIMENTO DE TECNOLOGIA PARA GESTÃO DE ATIVIDADES COMPLEMENTARES EM INSTITUIÇÕES DE ENSINO SUPERIOR

This article aims to investigate and analyze the behavior profiles and preferences of undergraduate students in relation to complementary activities in order to propose technological alternatives to optimize this process. The research, of exploratory and descriptive character, adopted as a technical procedure the case study at Fumec University, a higher education institution located in the city of Belo Horizonte. Data collection took place through structured interviews, carried out with undergraduate students at Fumec University, from September 1 to 30, 2023. The results indicated the interest of students in using a mobile application as an alternative to the analog methods currently used by HEIs. In this way, the app called Universitário do Bem was developed, which aims to manage the complementary activities carried out in the HEIs. The implementation of the app can save time and resources, in addition to promoting the university extension activity, which is still undervalued in Brazil. With the increasing integration of mobile applications into daily life, the proposed solution has the potential to significantly facilitate the process of carrying out complementary activities for students. The project faced challenges such as slow application and delays in conducting tests due to the high turnover of responsible students. Proposed improvements include the use of a more robust server and code overhaul to optimize performance.

Пути реализации поисково-разведочных работ на нефть и газ в юго-западной части Карского моря

In the highly promising oil and gas regions of Russia — the southwestern part of the Kara Sea, in the Pripaykhoi-Prinovozemelskaya monoclise in the near future, a transition from regional stage activity to exploration is planned. Given the complex natural, climatic and geological conditions of the region, during the effective exploration and development of oil and gas resources, it will be necessary to use new methodological solutions and research types. Based on the results of the research, and using the analogy method, the authors have substantiated the prospects for the region oil and gas potential and priority objects, and have drawn up an exploration program for promising objects.

Effect of Implicit Learning Methods With the External Focus of Attention on Bowling Skills in Children With Autism Spectrum Disorder: A Randomized Control Trial Study.

The aim of the current study was to compare implicit learning methods with an emphasis on the external focus of attention on bowling skill in autistic children. Twenty children with autism spectrum disorder (ASD) were selected. After the participants were randomly divided into two groups, the pretest was performed, evaluating the participants both quantitatively (score of bowling pins falling) and qualitatively (TGMD3 subscale test of underhand ball throwing). Group A was trained using the errorless learning method with the external focus of attention, while Group B was trained using the analogical learning method with the external focus of attention. The results showed that analogical learning with the external focus of attention has significant effects (p≤0.05) on both bowling and underhand ball-throwing skills in autistic children. Errorless learning with external focus of attention, on the other hand, had a significant effect (p≤0.05) on the bowling skill. The results of the research showed that analogical learning with an external focus of attention can be effective in developing both bowling skill and underhand ball-throwing skill in children with ASD; however, errorless learning with an external focus of attention was useful in developing bowling skill and failed to show a significant effect on enhancing the underhand ball-throwing skill in children diagnosed with ASD. IRCT20220920056007N1.

Analytical approximate solutions of some fractional nonlinear evolution equations through AFVI method

In this article, we construct and investigate a new fractional variational iteration technique which is named as AFVI method. After that, we formulate some IVPs corresponding to the fractional nonlinear evolution equations NLTFFWE, mNLTFFWE, TFmCHE and TFmDPE. The Caputo fractional order derivative has been used to fractionalize the considered NLEEs. Then, we solve the considered IVPs by applying the formulated AFVI method. Lastly, we check the accuracy of the attained AASs by making some graphical and numerical comparisons with their corresponding exact solutions and other existing equivalent AASs. The result of this article confirm that the efficiency, appropriateness and time spent capability of the newly constructed AFVI method are better than that of the other existing analogous fractional analytical approximation methods. Here, we apply the Maple 2021 programming software to obtain the AASs of the formulated IVPs and drawing the 3D graphs of the attained AASs. Finally, in this article we validate the applicability of the Caputo fractional order derivative to form a novel analytical approximation method as well as to fractionalize some essential NLEEs of Mathematical physics.

Analysis of hydrodynamic performance and acoustic characteristics of loop propellers

To improve the efficiency and stealthiness of marine operations of autonomous underwater vehicles (AUVs), 12 loop propellers with different structural parameters are selected as research subjects. The Reynolds-averaged Navier–Stokes equations method is used to simulate the flow field result around the loop propellers and is combined with detached eddy simulation and the acoustic analogy method for hydrodynamic analysis and noise prediction. The influence of three structural parameters, namely the number of propeller blades, the thickness of propeller blades, and the pitch of propeller blades, on the hydrodynamic and noise performance of the propeller is investigated, and the loop propeller structure with the optimal hydrodynamic and noise performance is selected. The research results indicate that increasing the number of propeller blades and increasing the pitch of the loop propeller can significantly improve the thrust and torque of the propeller and effectively reduce the noise. However, increasing the thickness of the propeller blades can also increase the thrust and torque of the propeller, but it will sacrifice the noise performance of the loop propeller to a certain extent. The sensitivity of the noise performance with respect to the blade thickness is significantly higher than that of the two parameters of blade number and pitch. To verify the accuracy of the hydrodynamic and noise performance simulation results, this study conducted hydrodynamic and noise performance tests on the preferred loop propeller structure in the towing pool and anechoic pool and successfully verifies the reliability of the numerical simulation method used in this study for the prediction of the propeller performance by comparing the test data with the simulation results. This study provides theoretical support for the design optimization of loop propellers and helps to promote the design of high-efficiency and low-noise propellers in complex marine environments.

Rivers, Tides and Currents

Ideally, natural scientific theories, even the most speculative ones, need empirical confirmation, which, however, is not always possible and, even when achieved, cannot always be correctly interpreted. Moreover, as practical experience accumulates, the investigators of nature with more reason reject the least successful theories, and obtain new confirmations for the most successful ones. This is the way science works, both in modern times and in antiquity. Applied to the history of ancient hydrology, this means that we can trace the development of natural scientific ideas from early thinkers such as Thales, Empedocles, Diogenes of Apollonia, Plato,v and Aristotle, to the Roman and early Byzantine period, represented by encyclopaedic authors such as Posidonius, Seneca, Strabo, and Alexander of Aphrodisias. As a result, we will see not only the evolution of natural scientific ideas, but also, in some cases, we will be able to assess the methodological and empirical acceptability of the physical ideas of late antiquity, which emerged as a result of the trial and error of ancient naturalists and their long reflection on the riddles of nature. In general, the article is devoted to the ancient concept of the circulation of water in nature. In its first part special attention is given to an analogy between natural phenomena and the processes occurring in living organisms, common to our philosophers of nature, as well as the peculiarities of their interpretation of the theory of mutual transformation of the elements. We note the place of the method of analogy in their observations and theoretical constructions. The second part of the article is dedicated to tides and sea currents. We look at the history of their observation in antiquity as well as alternative theories, designed to explain their nature. Special attention is given to ancient explanation of the phenomenon of the periodical change of the stream in Euripus’ channel (Chalkida, Greece).

STUDY OF AERODYNAMIC NOISE OF PROPELLER CONSIDERING THE INFLUENCE OF BOUNDARY SURFACE USING CFD METHOD

This article focuses on the aerodynamic and acoustic characteristics of both an isolated propeller model and a propeller - boundary surface model. The study uses the Reynolds-averaged Navier-Stokes (RANS) method combined with Computational Fluid Dynamics techniques to analyze the flow field and wake flow behind the propeller and to determine its basic aerodynamic coefficients. The pressure on the surface of the propeller and boundary surface is used as input for the noise calculations. An acoustic analogy method, based on the Farassat 1A formulation derived from the Ffowcs Williams-Hawkings (FW-H) equation, is employed to calculate the propagation of noise from the surfaces of the propeller and boundary surface to designated positions (microphones). The research results lead to some significant conclusions drawn by the authors.

PROSPECTS FOR THE DEVELOPMENT OF TRADE AND ECONOMIC RELATIONS BETWEEN RUSSIA AND TURKEY IN THE NEW ECONOMIC ENVIRONMENT

Introduction: The purpose of the article is to determine the prospects for the development of trade and economic relations between Russia and Turkey at the present stage. The relevance поставленной of this goal is due to the fact, that Turkey did not join the economic sanctions against Russia and took advantage of the favorable market conditions to increase the supply of priority goods to the Russian market, but the prospects for the development of these relations are currently not clearly defined, as a result of which the aspect requires further in-depth study. Methods: Research methods are analysis and systematization of information, as well as methods of generalization and analogy. Results: The results of the study show that Russia is one of the main suppliers of energy resources for Turkey, and Turkey occupies a unique position as the main supplier of consumer goods, such as textiles, clothing, food, household appliances and electronics. The study revealed significant fluctuations in the share of trade flows between countries depending on the foreign policy situation and economic sanctions, which reflects the high sensitivity of trade to political factors. Available data: The article presents data on trade turnover between Russia and Turkey for the period from 2015 to 2023. Discussion: It is concluded that the development of Russian-Turkish relations is based on mutual benefit, which allows us to judge their further development. Promising areas for the development of trade and economic relations between the two countries are: further development of parallel imports and Turkey's participation in supply chains, increasing the supply of Turkish-made consumer goods to the Russian market, as well as joint cooperation in the field of nuclear energy, including joint construction and commissioning of industrial facilities. In the current political and economic environment, new prospects for deepening Russian-Turkish relations have emerged, including currency cooperation and the development of the infrastructure of trade and economic ties. In the long term, both countries may consider cooperation opportunities in related areas, such as nuclear medicine, the production of isotopes and radioactive materials.

Implementing Scientific and Technological Territorial Potential Through Interregional Integration Based on the “Smart” Specialization Approach

Relevance and objectives of the research. Regional scientific and technological potential can be revealed and fully realized only taking into account the possibilities of interregional partnership and cooperation and provided that the priorities of scientific and technological development of the regions are aligned. The purpose of the article is to analyze the possibilities and prospects for using the “smart” specialization approach to the formation and development of interregional scientific and technological spaces.Materials and methods. The methodological basis of the study was the general scientific methods of system analysis, abstraction, induction and deduction, analogy, modeling, specification, comparative and logical research methods. The special methods used were content analysis of literature, bibliometric, comparative geographical and others. The empirical basis of the study was based on data from the Federal State Statistics Service, the statistical information platform Statista, as well as individual strategic regulatory documents. The instrumental base for the analysis was made up of the VOSviewer program, version 1.6.20.Results. The author analyzed and generalized theoretical approaches to the definition of “interregional scientific and technological integration”, presented the author’s understanding of “smart” specialization as a strategic approach to the development of regional structural and innovation-technological policies. Unique tools for using this approach are identified and described based on an analysis of European experience. The main barriers to the practical implementation of “smart” specialization in order to build effective interregional scientific and technological integration are analyzed (departmental inconsistency, the content and specificity of requirements for the targeted use of federal budget funds, fragmentation and multidirectionality of measures and instruments of state support, etc.), and key tools for its support are identified. The role of the state in the processes of building internal cooperation chains, the formation of interregional scientific and technological spaces in order to ensure the comprehensive implementation of regional potentials is revealed.Conclusions. It is advisable to implement a unified scientific and technological policy that ensures the synchronization of actions of management subjects at different levels, which will require the elimination of departmental inconsistencies in its implementation, the establishment of uniform transparent principles and rules of the game, a verified system of economic incentives, and, in general, the creation of a high-quality institutional environment. In addition, for the purpose of scientific and technological development of regional spaces, it is necessary to constantly monitor the status and results of using various government support instruments with a view to their subsequent prioritization and linking “smart specialization” strategies with real support measures and distribution of subsidies.

Deep Analogical Generative Design and Evaluation: Integration of Stable Diffusion and LoRA

Abstract The rapid evolution of generative design through artificial intelligence has opened new avenues for innovative product styling. Integrating this efficient generative technology with established professional theories presents a novel challenge in contemporary international design research. In response to this challenge, this article introduces a pioneering and collaborative approach for the swift generation of automobile styling designs. The primary objective is to investigate an intelligent generation method that incorporates analogical reasoning and Stable Diffusion to support industrial designers in innovating product styling. This study scrutinizes traditional analogical reasoning design alongside the intelligent analogical reasoning design proposed herein, elucidating the distinctions through multidimensional comparisons using illustrative examples. The proposed methodological framework encompasses several key steps. Initially, a dataset comprising branded automobile images is meticulously constructed. Subsequently, an exclusive style model is trained leveraging Stable Diffusion techniques, coupled with advanced computer graphics and machine learning methodologies. Following this, design requirements are inputted, facilitating intelligent analogical reasoning design across multiple spatial dimensions to yield diverse and innovative automobile styling solutions. Finally, eye-tracking experiments are conducted to quantitatively compare the traditional analogical reasoning design approach with the Stable Diffusion-based analogical reasoning design method. The results substantiate that the latter effectively generates innovative and diversified automobile design solutions. This research contributes to enhancing the quality of automobile styling design, optimizing the design efficiency of enterprises, and catalyzing innovation in the automobile styling design process.

A digital duplicating obturator with 3D printing technology

Obturators are vital for restoring function and appearance in patients with maxillofacial defects, though traditional fabrication involves multiple clinical visits and extended production time. This technique report details a digital approach using computer-aided design/manufacturing (CAD/CAM) and 3D printing to duplicate an obturator for a 74-year-old patient with maxillary bone necrosis. By using a chairside intraoral scanner, we obtained a digital model of the existing obturator, avoiding traditional impression-taking and reducing procedural discomfort. A 3D-printed obturator was fabricated, adjusted with a tissue conditioner, and refined to ensure optimal fit. Laboratory processes included using specialized materials and retention techniques. The digital workflow minimized patient visits and improved comfort, underscoring CAD/CAM and 3D printing's potential to enhance clinical efficiency and quality of life for patients requiring complex prosthetic rehabilitation. This approach highlights the practical benefits of integrating digital and analog methods in maxillofacial prosthetics. (Int J Maxillofac Prosthetics 2024;7:16-19)

The Role of Digital Marketing Technologies in Enhancing Business Process Management

In the many stages of the digital revolution's progress, digitalisation has strong foundations and significant turning points. The word "digit" was derived etymologically from the Latin phrase "digitalis." The practice of counting with fingers and toes numbers lower than ten was commonly referred to by this phrase in the middle of the fifteenth century. Going forward to the 1650's numerical meaning, data processing on computers began in 1938, replacing analogue methods. 1945 marked yet another turning point in the rapid processing of evolutionary changes, before the 1960s saw the emergence of extensive data collection and broadcasting of events. Marketing operates through an integrated method that combines the arts and sciences. The arts create demand, while the sciences assess market potential and the company's ability to meet that need. It is harder to market services than it is to sell items. The field of digital marketing has grown more dynamic and complex. Technology is constantly requiring exceptional upgrades due to its rapid changes, diversified applications, version modifications, and advanced generations. A company's ability and desire to adapt to the evolving form, function, and structure of digital technology is a prerequisite for any stable reliance on it.

STRUCTURE-ACTIVITY RELATIONSHIP OF PSYCHOACTIVE CANNABINOIDS: A CHEMOMETRIC EXPERIMENT FOR UNDERGRADUATE AND POSTGRADUATE STUDENTS IN CHEMICAL EDUCATION

Undergraduate and postgraduate Chemistry Education students had to develop the experiment in four (4) stages. Twenty-two (22) cannabinoids (Δ9-THC and derivatives) with different degrees of psychoactivity, previously scrutinized by our research group with the approaches: molecular electrostatic potential (MEP) and interaction with the CB1 receptor (CARDOSO-FILHO et al., 2004), are investigated through Chemometrics. Exploratory Analysis: Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA). E Classification Methods: K-Nearest Neighbor (KNN) method, Soft Independent Modeling Class Analogy (SIMCA) method, and Stepwise Discriminant Analysis (SDA) were employed to reduce the dimensionality of the data matrix and investigate which descriptors are responsible for the classification between the most active cannabinoids (mac), pKi ≥ 6.72, and the least active cannabinoids (lac), pKi < 6.72, according to the hypothesis previously reported (Cardoso-Filho et al., 2024). The investigation with PCA, HCA, KNN, SIMCA, and SDA showed that the descriptors LUMO+1 energy, Geary autocorrelation of lag 6 weighted by van der Waals volumes (GATS6V), hydration energy (EH), atomic charge on the atom of C4 (qC4), and molecular representation of structure based on the electron diffraction, code of signal 3, unweighted (MOR03u) are responsible for separating cannabinoids according to their degrees of psychoactivity. The insights accumulated and the models built in the research – PCA chemometric model, HCA chemometric model, KNN chemometric model, SIMCA chemometric model, and SDA chemometric model – will be able to support the design of new potentially psychoactive Δ9-THC derivatives.

Nonlinear Dynamic Analysis Using the Force Analogy Method and the Ibarra–Medina–Krawinkler Model

ABSTRACTA methodology to integrate the Ibarra–Medina–Krawinkler (IMK) hysteretic model with the force analogy method (FAM) is proposed. FAM is a powerful tool for performing nonlinear structural analysis that reduces analysis time, addressing the main limitation of nonlinear analysis. One area of opportunity for FAM lies in its access to material nonlinearity models, which enable the reproduction of inelastic behavior in structures. The IMK model, utilized in nonlinear analysis for updating the stiffness matrix, incorporates various rules of material nonlinear behavior and considers cyclic deterioration of stiffness and strength. By combining the IMK model with FAM, the capability to model material nonlinear behavior in a computationally efficient manner is enhanced. The proposed methodology is validated through four numerical examples, demonstrating its effectiveness in replicating experimental behaviors and enhancing FAM capabilities in inelastic structural analysis.

Influence of Prebiotic Immunobeta and the Combination Immunobeta + Zoovit Probiotic on Blood Biochemical Parameters in Ile-de-France Lambs

The aim of the present study was to determine the effect of the addition of prebiotic Immunobeta and probiotic Zoovit on the biochemical parameters of blood in Ile-de-France lambs. The research was carried out at the Agricultural Institute - Stara Zagora. It includes a total of 45 Ile de France lambs, divided into three groups of 15 - one control and two experimental. The groups were formed by the method of analogues, equalized by live weight at the beginning of the experiment, type of birth and sex. The animals of the I experimental group received 8 g of the prebiotic Immunobeta individually once a day, and those of the II experimental group the same amount of prebiotic with the addition of 4 g of the Zoovit probiotic. Blood for the study of 8 animals from each group was taken at the beginning and at the end of the experiment. In the indicators of albumin, urea, glucose, cholesterol, creatinine and bilirubin, significant differences were reported after the addition of the prebiotic Immunobeta compared to those at the beginning of the trial. A significant decrease in albumin (P

A generalized method of power oscillation characteristic analysis for multi‐VSC grid‐connected system

AbstractThe grid‐connection of high‐permeability new energy through voltage‐source converters (VSCs) brings new oscillation risks to the power system, which seriously threatens the stable operation of the system. Therefore, an evaluating method based on modal analysis is proposed to investigate the power oscillation characteristics in a multi‐VSC grid‐connected system. Initially, based on the analogy method, the output admittance model of voltage‐source controlled VSCs (VC‐VSCs) and current‐source controlled VSCs (CC‐VSCs) is established. Subsequently, the output admittance model of a multi‐VSC grid‐connected system is constructed. Then, the modal analysis method is introduced to investigate the power oscillation characteristics of VC‐VSCs and CC‐VSCs, and the influence factors of power oscillation and its variation law are analysed. Next, a sensitivity analysis is also employed, which helps to identify the origin of each oscillation mode and determine the contribution of each component to the power oscillation. Finally, simulation and experiment are carried out to verify the effectiveness of the above analysis method.

Characterisation and synchronisation of a netted software defined radio radar

AbstractThe present work intends to characterise the combination of two netted software defined radios (SDR) and different radio frequency (RF) front‐ends installed in them, together with a two‐stratum time dissemination and synchronisation system. A modified implementation of the Network Time Protocol is used as coarse event synchronisation for either SDR back‐end. The White rabbit light embedded node implementation of the commonly known white rabbit synchronisation system (IEEE 1588 PTP‐2019) or arbitrary wave form generators are used as fine time dissemination system for either SDR. The resulting netted transceiver system is intended to compose a demonstrator for proof‐of‐concept experiments. The findings presented in this article show that the chosen combination of hardware and software is suitable for radar applications operating within L‐, S‐ and C‐bands. A channel coherency throughout the network with a relative modified Allan deviation of less than 80 fs for averaging intervals of 1 s, a phase noise better than −118 dBc/Hz at 10 Hz frequency offset and a fractional frequency lower than was measured. Within a single transceiver node, a fractional frequency lower than and phase noise of −124 dBc/Hz at 10 Hz frequency offset were measured as well. Multistatic radar systems exploit wide spatial diversity to enhance target detection and tracking, albeit with increased complexity when compared to a monostatic configuration. To exploit these benefits, all participating transceiver nodes within the netted radar need to synchronise to a common time base . The achieved synchronisation level increases the accuracy with which the chain of timed events at the transmitter and at the receiver side occur, intending to maximise the signal‐to‐noise ratio available at the receiver. The Universal software radio peripheral model X310 with two different daughterboard models as RF front‐end was used as SDR on either radar node. A network combining data and synchronisation purposes allowed the radar nodes under test to operate synchronously. The two‐stratum synchronisation system used glass fibres between 2 m and 5 km of length or coaxial cables with 2 m in length for network traffic, time and frequency dissemination purposes. The multiple RF front‐ends were stimulated by means of arbitrary waveform generators with calibrated traceability. Up‐chirp and sinusoid waveforms were used as stimuli for measuring the offset of either channel with regards of to ultimately estimate the achievable coherency limits of the system under test. Both analogue and digital evaluation methods were considered.