Mixed Theory Research Articles

Analisis Konten Website CV. MyPangandaran dalam Penerapan Strategi Komunikasi Pemasaran

Communication plays a crucial role in marketing, serving as a tool to inform, remind, and bridge companies with the public in introducing products. CV. MyPangandaran, with a wider target of tourists outside Pangandaran Regency, faces challenges in reaching audiences through www.mypangandaran.com website. To maximize the reach of a website, an effective marketing communication strategy is needed. This study uses a qualitative method with a content analysis approach, focusing on documentation studies as primary data. The goal is to review the marketing communication strategy implemented by CV. MyPangandaran in an effort to expand the reach and increase the effectiveness of promotion. The results of the study show that the marketing communication strategies implemented include advertising, content marketing, direct marketing, and social media marketing. In the application of marketing mix theory, the communication aspect is the most dominant. Meanwhile, the most prominent AIDA (Attention, Interest, Desire, Action) model is the interest aspect. CV. MyPangandaran adjusts the advertising strategy to the characteristics of the products sold. Direct marketing is directed at the target market aged 25-35 years. The company also utilizes social media as a supporting marketing communication tool, including Facebook, Instagram, Twitter/X, and TikTok.This integrated marketing communication strategy aims to expand reach, increase engagement, and maximize the effectiveness of CV product and service promotions. MyPangandaran to potential tourists outside Pangandaran Regency. By integrating various communication channels, the company seeks to build brand awareness and increase tourist interest in Pangandaran destinations.

Analysis of Haigh’s Chocolates in Terms of Marketing Mix Theory

This report focuses on Haigh’s chocolates’ and evaluates marketing strategies of the company, applying Marketing Mix Theory. Definition of product, promotion and people are introduced. Then this report explains how the Haigh’s use these elements in its marketing strategies. Haigh’s chocolates produces high quality chocolate with various different collections and well-designed packages to fulfill customers' needs. They are committed to environmental sustainability through packaging and the protection of bilby. The Haigh’s also pays attention to the attitude and performance of their employees. It is recommended that Haigh’s chocolates makes improvements for their online shop and open more offline shops in Australia.

Dielectric Hybrid Optimization Model Based on Crack Damage in Semi-Rigid Base Course

To accurately predict the relative permittivity of cement-stabilized base materials, a study on the dielectric mixing model for cracked base materials was conducted. Based on the electromagnetic mixing theory of multiphase composites, a comprehensive dielectric mixing model of cement-stabilized base materials was derived. The volume ratios and relative permittivity values of the specimen constituents in different cracking states of the cement-stabilized base were determined using industrial CT and a Percometer relative permittivity meter, with comprehensive consideration given to the effects of different initial porosities and crack widths on the dielectric properties. Based on the volumetric and dielectric properties of the base material specimens in both intact and cracked states, as well as the error analysis between the predicted and measured values of the relative permittivity constant, the u-optimal solution of the dielectric mixing model for cement-stabilized base material was determined to be 1. Consequently, an optimization dielectric mixing model for semi-rigid base course materials in a cracked state was developed. The optimization model proposed is suitable for predicting the dielectric properties of cement-stabilized base material with crack widths generally greater than 3 mm during the service life of semi-rigid base course in engineering practice.

An Analysis of Code Mixing Used by Maudy Ayunda on Her Youtube Channel

This study aimed to identify and analyze the types and functions of code mixing used by Maudy Ayunda on Her YouTube Channel. Using a qualitative descriptive research design, it consist of 15 videos from Maudy’s YouTube channel. Data was collected through observation and documentation techniques, and analyzed using Hoffmann’s (1991) theory to determine the types of code mixing, and Hoffmann (1991), Saville-Troike (1986), and Holmes (2013) theories to identify the functions of code mixing. The findings showed that most frequently used types of code mixing was intra-sentential code mixing. Followed by Intra-lexical code mixing and Involving a change of pronounciation was not found in the videos. The function of emphasis was the most common function found in the videos, followed by Lexical Needs, Quoting Somebody Else, Repitition Use for Clarificayion, Talking about Particualr Topic, and Being Emphatic about Something. There are three functions which is not found on Muady’s videos are interjection, Expressing Group Identity or Solidarity, and Clarifying the Speech for the Interluctor. These findings suggest the importance of considering sociolinguistic factors in language education.

Study on the Vertical Distribution Characteristics of Suspended Sediment Driven by Waves and Currents

Port coasts are affected by waves and tidal currents, and sediment continues to silt up, leading to a reduction in the depth of water in the channel, blocking the channel and seriously affecting the safe operation of ports. The main cause of sediment deposition in ports is suspended sediment transport, and the characteristics of the vertical distribution of suspended sediment concentrations are the embodiment of the suspended sediment transport law. This paper is divided into three parts to study the vertical distribution characteristics of suspended sediment concentrations. Firstly, the shortcomings of the traditional diffusion model were analysed by using the finite mixing theory (FMT); secondly, the sediment mixing length coefficient κs model was introduced and combined with the sediment group settling velocity model to establish the vertical distribution model of suspended sediment concentrations under wave–current; finally, the effects of various factors on the vertical distribution of the suspended sediment concentration were investigated. The results show that the model in this paper has the characteristics of “low variance and low bias”, which solves the problem that κs is difficult to determine. When the model κs < κs′ (κs′ = 0.4), the concentration of suspended sediment predicted by κs′ is overestimated, and vice versa. As the sediment concentration increases, the interaction between particles increases and the vertical distribution of the suspended sediment concentration shows the pattern of “small top and large bottom”. The larger the particle size, the greater the sedimentation rate of the suspended sediment, and a large amount of sediment will be suspended near the bottom without mixing. The higher the wave height, the stronger the boundary layer turbulence and the movement of the water particles’ trajectory, and the smaller the difference in sediment concentration between the bottom and the sea surface.

Corruption in public procurement: Can e-procurement and artificial intelligence make a difference in Africa?

Corruption is a challenge that hinders countries’ development. The huge spending on public procurement, particularly on capital projects, makes it highly prone to corruption. The conventional paper-based procurement process has been linked to inefficiency and corruption in procurement practices. Given the expanding role of technology in an increasingly interconnected world, many leading experts suggest that technology can be a powerful tool to reduce opportunities for corruption in public procurement. In the past three decades, the use of technology, including electronic procurement (e-procurement) and artificial intelligence (AI), in public procurement has globally gained popularity. However, currently, technology in public procurement is not widely used in the African continent. This paper's main hypothesis is that technology can have an impact on reducing corruption in public procurement in Africa, with a particular emphasis on the prospects and challenges for technology adoption in Ghana and South Africa. The paper analyzes the types of initiatives that helped technology implementation in other countries and the utility of adopting such mechanisms in the context of the subject countries under review. The study investigates the critical success factors for adopting technology in public procurement activities in Ghana and South Africa using qualitative data analysis and mixed theories. This paper aims to assist public procurement practitioners, government entities, and funding organizations in a better understanding of the technology role, including public e-procurement and AI, in their efforts to minimize the scourge of corruption in public procurement.

A new optimization strategy, the influence of hollow electrode chamfers on the development of helium atmospheric pressure plasma jets

This work suggests applying chamfering treatment to the plasma generator of the empty electrode structure. Enhancing the electrodes’ physical structure can significantly improve plasma characteristics without requiring intricate control systems. Experiments have shown that changes in the electrode’s shape can lead to changes in the formation of the atmospheric pressure plasma jet. Specifically, our observations indicate that an increase in the chamfer radius leads to an increase in the ignition voltage and a greater density of reactive species inside the jet. We developed a multi-channel equivalent circuit model to describe the discharge process of a plasma jet. Then, using the mixed layer theory, we investigated the effect of the chamfer radius on the plasma jet. Our findings suggest that chamfering increases the effective discharge area, resulting in more discharge channels in the model. This leads to a higher density of reactive species. Additionally, chamfering improves the mixing of helium and air, increasing the concentration of N2 and O2. This consumes some of the avalanche electrons and raises the ignition voltages, ultimately enhancing the chemical reactivity of the plasma jet. This work provides new ideas for the optimization strategy of atmospheric pressure plasma radiation devices.

Effects of the internal temperature on vertical mixing and on cloud structures in ultra-hot Jupiters

Context. The vertical mixing in hot-Jupiter atmospheres plays a critical role in the formation and spacial distribution of cloud particles in their atmospheres. This affects the observed spectra of a planet through cloud opacity, which can be influenced by the degree of cold trapping of refractory species in the deep atmosphere. Aims. We aim to isolate the effects of the internal temperature on the mixing efficiency in the atmospheres of ultra-hot Jupiters (UHJs) and the spacial distribution of cloud particles across the planet. Methods. We combined a simplified tracer-based cloud model, a picket fence radiative-transfer scheme, and a mixing length theory to the Exo-FMS general circulation model. We ran the model for five different internal temperatures at typical UHJ atmosphere system parameters. Results. Our results show the convective eddy diffusion coefficient remains low throughout the vast majority of the atmosphere, with mixing dominated by advective flows. However, some regions can show convective mixing in the upper atmosphere for colder interior temperatures. The vertical extent of the clouds is reduced as the internal temperature is increased. Additionally, a global cloud layer gets formed below the radiative-convective boundary (RCB) in the cooler cases. Conclusions. Convection is generally strongly inhibited in UHJ atmospheres above the RCB due to their strong irradiation. Convective mixing plays a minor role compared to advective mixing in keeping cloud particles aloft in UHJs with warm interiors. Higher vertical turbulent heat fluxes and the advection of potential temperature inhibit convection in warmer interiors. Our results suggest that isolated upper atmosphere regions above cold interiors may exhibit strong convective mixing in isolated regions around Rossby gyres, allowing aerosols to be better retained in these areas.

Exploring the effect of Cr and Mn on the intrinsic strength of the tensile properties of FeCoNi, FeCoNiMn, FeCoNiCr, and FeCoNiCrMn multi-principal element alloys using in-situ EBSD

As the composition elements in multi-principal element alloys increase, it can bring excellent mechanical properties. However, the strengthening mechanism of the additional element is still unclear. In this work, we establish a method based on the in-situ EBSD technology to explore the possible effect of additional elements on the intrinsic strength of tensile properties. We prepared four different multi-principal element alloys, including FeCoNi, FeCoNiMn, FeCoNiCr, and FeCoNiCrMn with similar initial status. We systematically investigated the evolution of the microstructure, dislocation density, twin boundary, grain size, and element distribution during the tensile process by in-situ EBSD and EDS. By carefully analyzing the results of four different multi-principal element alloys, the strength effects of the solid-solution hardening, grain-boundary hardening, twin boundary hardening, precipitate hardening, and dislocation hardening were peeled. The effect of the Cr and Mn element addition on the intrinsic strength can be explored. It is found that the element addition indeed increases the intrinsic strength from quaternary to quinary but not very clear from ternary to quaternary no matter Cr or Mn, which indicated that the intrinsic strength was more related to the number of elements in the alloy than to which element was present. This can be explained using the mixing entropy theory, which states that the intrinsic strength is enhanced when the mixing entropy is over a threshold between the MEA and HEA. This paper presents a method to study the individual factors affecting the tensile properties, which can help other researchers to better investigate HEA.

High Performance of Mn2O3 Electrodes for Hydrogen Evolution Using Natural Bischofite Salt from Atacama Desert: A Novel Application for Solar Saline Water Splitting.

Solar saline water splitting is a promising approach to sustainable hydrogen production, harnessing abundant solar energy and the availability of brine resources, especially in the Atacama Desert. Bischofite salt (MgCl2·6H2O) has garnered significant attention due to its wide range of industrial applications. Efficient hydrogen production in arid or hyper arid locations using bischofite solutions is a novel and revolutionary idea. This work studied the electrochemical performance of Mn2O3 electrodes using a superposition model based on mixed potential theory and evaluated the superficial performance of this electrode in contact with a 0.5 M bischofite salt solution focusing on the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) that occur during saline water splitting. The application of the non-linear superposition model provides valuable electrochemical kinetic parameters that complement the understanding of Mn2O3, this being one of the novelties of this work.

Measuring the solubility of tacrolimus in supercritical carbon dioxide (binary and ternary systems), comparing the performance of machine learning models with conventional models

The solubility of tacrolimus in a supercritical carbon dioxide (SC-CO2) with and without co-solvent (ternary and binary system) was investigated. The experimental conditions include the temperatures of 308 to 338 K and the pressures of 12 to 30 MPa were considered. The values of tacrolimus solubilization in SC-CO2 in binary and ternary systems were from 0.416 × 10−5 to 1.589 × 10−5 and from 0.389 × 10−4 to 0.875 × 10−4, respectively. The obtained results presented that adding a co-solvent (ethanol) could affect tacrolimus solubility significantly, the mole fraction of tacrolimus in SC-CO2/co-solvent under all experimental conditions was at least 4.9 more than that of SC-CO2 alone. The correlation of the solubility data was achieved by three distinct methods: (1) SRK EoS with van der Waals (vdW2) and Wong-Sandler (WS) as mixing rules, (2) solution theory, (3) empirical and (4) machine learning based models. The analysis of variance (ANOVA) results showed that Sparks et al. (AIC −817.05, and AARD 5.08 %) and Bian et al. (AIC −815.77 and AARD 5.17 %) models could correlate the experimental data of tacrolimus in SC-CO2 with more accuracy, as compared to the other empirical models. Sodeifian and Sajadian model with AARD% and AIC of 2.99 and −726.22, respectively, has acted as the most accurate empirical model in ternary system. The solution theory was able to calculate the solubility for the tacrolimus-SC-CO2-ethanol system with high accuracy (AARD, % 4.85, AIC −701.41, F value 169.70 and Radj 0.9622). Also, the Gradient Boosting model (AARD accurately predicted the outcomes with perfect accuracy for binary and ternary systems. Finally, total (ΔHtotal, 23.21 cal/mol), solvation (ΔHsol, −19.47 cal/mol) and vaporization (ΔHvap, 42.68 cal/mol) enthalpies were obtained by using an energy term in Chrastil and Bartle models.

How Does Shareholding by Passive Institutional Investors Impact the Corporate Governance of European Firms?

ABSTRACTResearch Question/IssueThe passive investment (PI) trend, characterized by the increasing inflow of investment funds into PI strategies, has resulted in an increase in the share of corporate ownership held via investments in PI strategies. This paper investigates this trend's consequential impact on European companies' corporate governance (CG).Research Findings/InsightsWe find that higher ownership by passive institutional investors (PIIs) is associated with fewer female directors, reduced independence in audit and nomination committees, and higher executive pay, negatively impacting CG. Nevertheless, our findings show that PIIs can increase the probability that a company has a policy regarding the adequate experience of board members and equal treatment of shareholders.Theoretical/Academic ImplicationsWe hypothesize that the level of ownership could be the missing link connecting mixed theories about the impact of ownership by PIIs on the CG of companies they invest in. A curvilinear relationship between the two could allow conflicting theories to coexist in one framework. We find weak evidence for a curvilinear relationship, but this relationship may become more prevalent if PII ownership of European companies increases because of regulatory changes.Practitioner/Policy ImplicationsSome critics have proposed limiting PII voting rights, but our findings suggest that the effect of PII ownership may become less negative beyond a certain level of ownership and that PIIs may play a positive role in enhancing board experience and shareholder equity policies. Restricting PIIs may not necessarily be beneficial for the CG of companies they invest in.

Peran Komunikasi Pemasaran Modern pada Produk Kuliner Tradisional di Teras Jahe Yogyakarta

One business that is still consistently increasing and contributing to the national economy is the growth of the culinary/food and beverage (F&B) business industry, as gastronomic trends continue to be initiated as a new tourism alternative. This research aims to analyze the sales efforts of traditional culinary products carried out by Teras Jahe Yogyakarta using the 10P Marketing Mix theory based on Kotler and Armstrong's perspective. This research uses a qualitative descriptive method through data collection techniques: observation, in-depth interviews, documentation, and literature study. The results of the research show that the management at Teras Jahe Yogyakarta has carried out various promotions in conventional marketing media to digital marketing media, especially those that focus on strengthening the brand image with the tagline "Warming the Archipelago". The application of the 10P indicators in the marketing mix is a fundamental tool that Teras Jahe Yogyakarta must continue to optimize to maintain its business.

Effects of carbon nanotubes on the isotropic to nematic phase transition in nematic liquid crystal elastomer

The isotropic to nematic phase transition on nematic liquid crystal elastomer - carbon nanotubes composites has been studied theoretically. The model free energy density has been constructed using Flory Huggins theory of isotropic mixing and Landau-de Gennes theory. The effects of carbon nanotubes and external mechanical stress on the isotropic to nematic phase transition of the nematic liquid crystal elastomer-carbon nanotubes composites have been discussed. The volume fraction of carbon nanotubes dependence of the isotropic to nematic transition temperature, mechanical strain and strain birefringence has been calculated. The weak first-order character of the isotropic to nematic phase transition on nematic liquid crystal elastomer-carbon nanotubes composites has been predicted.

Large-signal stability analysis of an islanded DC microgrid with constant power loads based on mixed potential function

Abstract In DC microgrids, power electronic converters are widely used to connect loads and renewable energy sources to generate different voltages. These loads operate as constant power loads (CPL) within a closed control loop. When voltage fluctuates, these loads display negative impedance characteristics, potentially leading to system instability. Therefore, the analysis of the impact of CPL on DC microgrids during large disturbances is crucial. This paper employs mixed potential theory to study the large disturbance stability of DC microgrids under CPL. Deriving the stability criterion for the system under significant perturbations reveals the impact of load types and control parameters on system stability and provides a detailed analysis of how specific system parameters affect stability. Consequently, the stability criterion can ensure the system’s stability under large disturbances without the need for repeated calculations and simulations. Simulation results verify the correctness of this stability criterion.

Effects of quantum dots on the nematic to smectic-A phase transition

ABSTRACT Experiments on the composites of liquid crystals and quantum dots showed the significant role of quantum dots on the properties of the nematic–smectic-A phase transition. The effects of quantum dots on the nematic-smectic-A phase transition have been discussed using Flory- Huggins theory of isotropic mixing and Landau-de Gennes theory. The impact of quantum dots on the smectic-A order parameters, nematic–smectic-A transition temperature, splay and bend elastic constants has been discussed. The smectic-A order parameters, transition temperature and elastic constants decrease with the increase of volume fraction of quantum dots.

The dynamics of capillary flow in an open-channel system featuring trigger valves.

Trigger valves are fundamental features in capillary-driven microfluidic systems that stop fluid at an abrupt geometric expansion and release fluid when there is flow in an orthogonal channel connected to the valve. The concept was originally demonstrated in closed-channel capillary circuits. We show here that trigger valves can be successfully implemented in open channels. We also show that a series of open-channel trigger valves can be placed alongside or opposite a main channel resulting in a layered capillary flow. We developed a closed form model for the dynamics of the flow at trigger valves based on the concept of average friction length and successfully validated the model against experiments. For the main channel, we discuss layered flow behavior in the light of the Taylor-Aris dispersion theory and in the channel turns by considering Dean theory of mixing. This work has potential applications in autonomous microfluidics systems for biosensing, at-home or point-of-care sample preparation devices, hydrogel patterning for 3D cell culture and organ-on-a-chip models.

Strategi Public Relations PC. GKBI dalam Membangun Citra Positif Perusahaan

Building an image is a vital endeavor for companies to survive in today's industry competition. This research focuses on the Public Relations strategy of PC. GKBI in creating a positive image. The research objective is to identify the Public Relations strategy of PC. GKBI in the formation of a positive image. The method used is descriptive qualitative, with analysis based on Philip Kotler's Public Relations mix theory, namely the PENCILS strategy. The findings show that PC. GKBI has successfully implemented the PENCILS strategy in building a positive image, although the implementation of Publications and News has not been carried out optimally. It is expected that Public Relations can improve media management so that information dissemination is more massive.

The impact of asteroseismically calibrated internal mixing on nucleosynthetic wind yields of massive stars

Context. Asteroseismology gives us the opportunity to look inside stars and determine their internal properties, such as the radius and mass of the convective core. Based on these observations, estimations can be made for the amount of the convective boundary mixing and envelope mixing of such stars and for the shape of the mixing profile in the envelope. However, these results are not typically included in stellar evolution models. Aims. We aim to investigate the impact of varying convective boundary mixing and envelope mixing in a range based on asteroseismic modelling in stellar models up to the core collapse, both for the stellar structure and for the nucleosynthetic yields. In this first study, we focus on the pre-explosive evolution and we evolved the models to the final phases of carbon burning. This set of models is the first to implement envelope mixing based on internal gravity waves for the entire evolution of the star. Methods. We used the MESA stellar evolution code to simulate stellar models with an initial mass of 20 M⊙ from zero-age main sequence up to a central core temperature of 109 K, which corresponds to the final phases of carbon burning. We varied the convective boundary mixing, implemented as ‘step-overshoot’, with the overshoot parameter (αov) in the range 0.05−0.4. We varied the amount of envelope mixing (log(Denv/cm2 s−1)) in the range 0−6 with a mixing profile based on internal gravity waves. To study the nucleosynthesis taking place in these stars in great detail, we used a large nuclear network of 212 isotopes from 1H to 66Zn. Results. Enhanced mixing according to the asteroseismology of main-sequence stars, both at the convective core boundary and in the envelope, has significant effects on the nucleosynthetic wind yields. This is especially the case for 36Cl and 41Ca, whose wind yields increase by ten orders of magnitude compared to those of the models without enhance envelope mixing. Our evolutionary models beyond the main sequence diverge in yields from models based on rotational mixing, having longer helium-burning lifetimes and lighter helium-depleted cores. Conclusions. We find that the asteroseismic ranges of internal mixing calibrated from core hydrogen-burning stars lead to similar wind yields as those resulting from the theory of rotational mixing. Adopting the seismic mixing levels beyond the main sequence, we find earlier transitions to radiative carbon burning compared to models based on rotational mixing because they have lower envelope mixing in that phase. This influences the compactness and the occurrence of shell mergers, which may affect the supernova properties and explosive nucleosynthesis.

The Ungrading Learning Theory We Have Is Not the Ungrading Learning Theory We Need.

Ungrading is an emancipatory pedagogy that focuses on evaluative assessment of learning. Self-regulated learning (SRL) has consistently been referred to as the learning theory that undergirds ungrading, but SRL-with its deficit frame in the literature and in practice-fails to uphold ungrading's emancipatory aims. An asset-framed learning theory-one that combines the cultural orientation of funds of knowledge with the power dynamics of community cultural wealth-is proposed as an alternative to SRL. The proposed learning theory aligns ungrading to its emancipatory aims and may provide an opportunity to better understand the learning that occurs in ungraded classrooms. Scholarly and practical impacts for Science, Technology, Engineering, and Mathematics (STEM), and specifically biology, educational research and practice include investigating the plausibility of mixing learning theories, aligning learning theory to emancipatory aims and researching how faculty activate funds of knowledge and community cultural wealth, both individually and collectively, in ungraded STEM classrooms.