Recording Technology Research Articles

Model of advanced recording system for application in heat-assisted magnetic recording

Heat assisted magnetic recording (HAMR) technology is considered a solution to overcome the limitations of perpendicular magnetic recording and enable higher storage densities. To improve and understand the performance of magnetic writers in HAMR technology, it is crucial to possess a comprehensive understanding of both the magnetic field generated during the writing process and the thermal effects induced by the laser. In this work, we have developed a micromagnetic HAMR model with atomistic parameterization. To demonstrate the applicability of the developed model, it is employed to investigate the Write Current Assisted Percentage (WCAP) measurement which is characterized by the difference in laser current needed to erase a narrow data track with and without assistance of the magnetic field generated by the writer. This value allows us to subsequently consider the strength of the magnetic field from the writer, which is difficult to evaluate experimentally. We study the effect of crucial factors such as the laser current, the frequency of the writing field and the grain size distribution of the recording media on the WCAP. The results reveal that, under a high applied field, a correspondingly elevated WCAP is generated. This observation suggests that the track undergoes erasure to approximately half of its amplitude, achieved through the utilization of a low peak temperature. The comparison between simulation and experimental data demonstrates excellent agreement and acts as a validation of the underlying principle of WCAP. Additionally, we explore theoretically the impact of the writer frequency, and the results suggest that lower frequencies give rise to an increase in WCAP. This implies that lower frequencies allow for a reduction in temperature required to erase the track. The technique is valuable in evaluating and contrasting the magnetic behavior of various write pole configurations, examining the frequency responses of different designs, and comparing different media.

Energy Management System for Distributed Energy Resources using Blockchain Technology

: Power generation in today’s world is of utmost importance, due to which blockchain is used for the categorization and formation of decentralized structures. This paper has proposed decentralized energy generation using a nester, i.e., energy sharing without third-party intervention. Decentralized blockchain technology is applied to ensure power sharing between buyer and seller, and also to achieve efficient power transmission between prosumer and consumer. Energy management is associated with controlling and reducing energy consumption. Blockchain technology plays a major role in distributed power generation, for example, power-sharing (solar and wind energy), price fixation, energy transaction monitoring, and peer-to-peer power-sharing. These are operations performed by blockchain in renewable power generation. Solar power generation using blockchain technology can obtain an impact resting upon the power generation system. Distributed ledger is the key area of blockchain technology for recording and tracking each transaction in the distribution system to improve the efficiency of the overall transmission system. A smart contract is another important tool in the blockchain technology, which is issued to confirm an assent between buyer and seller before starting any energy transaction without external intervention and also to avoid time delay. Maximum power point tracking is conducted in PV cells using blockchain technology. Blockchain influences energy management systems to improve the utilization of energy, optimize energy usage, and also to reduce the cost.

All Optical Switching: a Path to Recording Technology Beyond HAMR

All Optical Switching: a Path to Recording Technology Beyond HAMR

Video Recording Technologies and Cameraman Auxiliary Equipment as an Integral Part of Achieving a Creative Idea in Audiovisual Art

The purpose of the research is to find out the development history of the technical component of audiovisual arts, namely the development of film and television cameras, video and sound recording devices, equipment for editing, colour correction and special effects; to study the components of the evolution of video recording technologies, the dependence of the possibilities of embodying creative ideas in audiovisual works on the current development of auxiliary camera equipment; to analyse the importance of the correct choice and use of the entire available range of shooting and auxiliary camera equipment by the operator. The research methodology is determined by the following methods: theoretical – for studying the relevant literature, scientific research and articles in professional periodicals; collecting and analysing information on the topic, generalisation and typification – for systematising technical and scientific material, selection and analysis – for studying the characteristics of filming and auxiliary equipment, generalising their impact on the implementation of the qualitative and creative components of the visual range, determining the interdependence of filming equipment and the latest technologies. The empirical method is used to describe the author’s experience of working as a cameraman using various filming and auxiliary equipment to create television content. Scientific novelty. For the first time, the influence of the development of camera equipment and auxiliary equipment on the possibility of implementing new expressive forms by the cameraman and achieving a unique pictorial character and style that will correspond to the creative director’s intention in an audiovisual work is analysed. Conclusions. In the course of the study, the components of the video recording technology development were identified; based on special technical publications and the author’s own practical experience, the author has highlighted in detail the dependence of the possibility of practical implementation of the creative idea on the availability of the necessary professional filming equipment, various specialised equipment and modern technologies.

"1-800-Help-Me-With-Open-Science-Stuff": A Qualitative Examination of Open Science Practices in Communication Sciences and Disorders.

The purpose of this qualitative study was to examine the perceptions of communication sciences and disorders (CSD) assistant professors in the United States related to barriers and facilitators to engaging in open science practices and identify opportunities for improving open science training and support in the field. Thirty-five assistant professors (16 from very high research activity [R1] institutions, 19 from institutions with other Carnegie classifications) participated in one 1-hr virtual focus group conducted via Zoom recording technology. The researchers used a conventional content analysis approach to analyze the focus group data and develop categories from the discussions. Five categories were developed from the focus groups: (a) a desire to learn about open science through opportunities for independent learning and learning with peers; (b) perceived benefits of engaging in open science on assistant professors' careers, the broader scientific community, and the quality of research in the field of CSD; (c) personal factors that act as barriers and/or facilitators to engaging in open science practices; (d) systemic factors that act as barriers and/or facilitators to engaging in open science practices; and (e) differences in perceptions of R1 and non-R1 assistant professors. Assistant professors in CSD perceive benefits of open science for their careers, the scientific community, and the field. However, they face many barriers (e.g., time, lack of knowledge and training), which impede their engagement in open science practices. Preliminary recommendations for CSD assistant professors, academic institutions, publishers, and funding agencies are provided to reduce barriers to engagement in open science practices. https://doi.org/10.23641/asha.27996839.

Restoring vestibular function during natural self-motion: Progress and challenges.

The vestibular system is integral to behavior; the loss of peripheral vestibular function leads to disabling consequences, such as blurred vision, dizziness, and unstable posture, severely limiting activities of daily living. Fortunately, the vestibular system's well-defined peripheral structure and well-understood encoding strategies offer unique opportunities for developing sensory prostheses to restore vestibular function. While these devices show promising results in both animal models and implanted patients, substantial room for improvement remains. Research from an engineering perspective has largely focused on optimizing stimulation protocol to improve outcomes. However, this approach has often been pursued in isolation from research in neuroscience that has enriched our understanding of neural responses at the synaptic, cellular, and circuit levels. Accordingly, this review bridges the domains of neuroscience and engineering to consider recent progress and challenges in vestibular prosthesis development. We advocate for interdisciplinary approaches that leverage studies of neural circuits at the population level, especially in light of recent advancement in large-scale recording technology, to identify impediments still to overcome and to develop more naturalistic stimulation strategies. Fully integrating neuroscience and engineering in the context of prosthesis development will help advance the field forward and ultimately improve patient outcomes.

Multifunctional Neural Probes Enable Bidirectional Electrical, Optical, and Chemical Recording and Stimulation In Vivo.

Recording and modulation of neuronal activity enables the study of brain function in health and disease. While translational neuroscience relies on electrical recording and modulation techniques, mechanistic studies in rodent models leverage genetic precision of optical methods, such as optogenetics and fluorescent indicator imaging. In addition to electrical signal transduction, neurons produce and receive diverse chemical signals which motivate tools to probe and modulate neurochemistry. Although the past decade has delivered a wealth of technologies for electrophysiology, optogenetics, chemical sensing, and optical recording, combining these modalities within a single platform remains challenging. This work leverages materials selection and convergence fiber drawing to permit neural recording, electrical stimulation, optogenetics, fiber photometry, drug and gene delivery, and voltammetric recording of neurotransmitters within individual fibers. Composed of polymers and non-magnetic carbon-based conductors, these fibers are compatible with magnetic resonance imaging, enabling concurrent stimulation and whole-brain monitoring. Their utility is demonstrated in studies of the mesolimbic reward pathway by interfacing with the ventral tegmental area and nucleus accumbens in mice and characterizing the neurophysiological effects of a stimulant drug. This study highlights the potential of these fibers to probe electrical, optical, and chemical signaling across multiple brain regions in both mechanistic and translational studies.

Blue lasers using low-toxicity colloidal quantum dots.

Blue lasers play a pivotal role in laser-based display, printing, manufacturing, data recording and medical technologies. Colloidal quantum dots (QDs) are solution-grown materials with strong, tunable emission covering the whole visible spectrum, but the development of QD lasers has largely relied on Cd-containing red-emitting QDs, with technologically viable blue QD lasers remaining out of reach. Here we report on the realization of tunable and robust lasing using low-toxicity blue-emitting ZnSe-ZnS core-shell QDs that are compact in size yet still feature suppressed Auger recombination and long optical gain lifetime approaching 1 ns. These characteristics allow us to handle the blue QDs like laser dyes for liquid-state amplified spontaneous emission and lasing. The blue QD laser is operated under quasi-continuous-wave excitation by solid-state nanosecond lasers. A Littrow-configuration cavity enables narrow linewidth (<0.2 nm), wavelength-tunable, coherent and stable laser outputs without circulating the solution. These results indicate the promise of ZnSe-ZnS QDs to fill the 'blue gap' of QD lasers and to replace less stable blue laser dyes for a multitude of applications.

Enhancing optical properties of Ba-Ni ferrite through nonmagnetic ion doping for sustainable green technologies and renewable energy applications

Barium ferrite powder was produced using a standard ceramic procedure, and its structure and optical properties were investigated. X-ray diffraction analysis (XRD) showed that the powder had a w-type hexagonal structure. The crystallite size was at approximately 35–36 nm, with bulk density and lattice constants increasing as zinc concentration rose. Conversely, X-ray density and porosity decreased with the increasing zinc concentration. This material has useful optical properties, as well as the standard ferrimagnetic properties of barium ferrite, which make it suitable for use in recording media. Ferrimagnetic behavior, which is useful for recording media, occurs because the powder's crystallites have their unit cell axes aligned. Up to the near-infrared part of the spectrum, the powder was found to have a very low absorption coefficient. Both of these properties—an arrangement that gives rise to ferrimagnetism and a corresponding low optical density—make barium ferrite very attractive for high-density recording and microwave applications. Fourier transform infrared spectra of the samples were recorded in the wavenumber range of 400–4000 cm−1 and supported the X-ray diffraction findings by confirming the idea of the formation of W-type hexagonal ferrite by the presence of two prominent peaks at 454 and 591 cm−1 in the FTIR spectra. Zinc addition was also found to enhance the optical properties of the material. The UV–VIS analysis confirms that the band gap energy of Ba-Ni ferrite was indeed reduced by zinc doping. Values decrease from 3.34 eV to 3.20 eV for direct transitions and from 2.96 eV to 2.79 eV for indirect transitions, using Tauc equation. That means that zinc doping enhances the optical properties of Ba ferrite without affecting the hexagonal structure of Ba-Ni ferrite. Moreover, key parameters of optical performance such as the dielectric constant, the extinction coefficient, the penetration depth, and the refractive index show a dramatic increase with a rise in zinc concentration. These attributes make zinc-doped Ba-Ni ferrite a promising optoelectronic material. The material also showed high absorbance in the wavelengths ranging from 334 to 338 nm, which makes it good for the solar cell applications. Overall, zinc-doped Ba-Ni ferrite is a good candidate for sustainable and renewable energy applications. Our study of the optical properties of barium ferrite up to the near-infrared part of the spectrum demonstrated that the powdered material has a very low absorption coefficient. Indeed, the combination of ferrimagnetism and low optical density makes barium ferrite particularly appealing for use in high-density recording and microwave technology applications.

Value of blockchain for scope 3 carbon disclosure: The moderating role of data processing technologies

Disclosing carbon emissions in Scope 3 is essential for mitigating pollution and the associated environmental damage, and blockchain can enhance the disclosure. However, the effect of blockchain on Scope 3 carbon disclosure remains unclear due to a lack of empirical evidence. This paper investigates the value of blockchain for Scope 3 carbon disclosure and examines whether this value can be strengthened by integrating data processing technologies, including artificial intelligence (AI), cloud computing, and big data analytics (BDA). Drawing upon the coordination theory, we posit that blockchain as a recording and tracing technology can improve the coordination among supply chain members on collecting carbon emissions data, thereby facilitating firms' Scope 3 carbon disclosure. Furthermore, data processing technologies enable efficient utilization and management of the collected data, potentially coordinating with blockchain to enhance Scope 3 carbon disclosure. We test these relationships using regression analysis based on a sample of 422 observations for Chinese listed firms during 2021 and 2022. The results show that blockchain adoption is positively associated with a firm's Scope 3 carbon disclosure. In addition, adopting each of the three data processing technologies—AI, cloud computing, and BDA—further strengthens the positive relationship. This study contributes to academic knowledge and evidence on blockchain and sustainable supply chain management with practical suggestions for managing carbon emissions at the supply chain level through the combined adoption of blockchain and data processing technologies.

Exploring best practices in smart public library services: a survey

Purpose This paper aims to the integration of smart cities and technologies has had a profound impact on public library services globally. However, debates continue about how public libraries are incorporating smart technologies and tools, and what this means for their role in smart city development. This paper explores how public libraries are evolving to meet community needs by providing both physical and digital services. Design/methodology/approach The purpose of this study is to assess the role of public libraries in the smart cities and how they are aligning toward development of smart concepts, technologies, services such as contributions to smart city objectives, community impact, the digital divide, unique projects and readiness for future smart city advancements. So, the authors explored 11 public library systems of cities across the world implementing smart city projects. Findings The authors found that all the library systems offer extensive print and digital collections, sustainable buildings and a well-connected network of branches. They provide self-checkout services, makerspaces equipped with 3D printing and coding workshops and advanced recording and video editing technologies. Furthermore, these libraries function as community centers, serving diverse groups including children, women, the elderly and marginalized communities. They function as third spaces that foster lifelong learning and digital literacy. Originality/value Although smart cities face substantial debate regarding their features, tools and feasibility, public libraries have adapted and redefined their roles to become influential public institutions. They now play a crucial part in supporting vibrant and dynamic communities and neighborhoods within smart cities.

Advanced documentation technologies for people-centred preparedness and re-construction in Bela, India

PurposeDespite the recurrence of earthquakes, responses are usually triggered afterwards, lacking mitigation strategies to diminish risks. Damaged dwellings cannot be immediately reinforced to continue inhabitation, generating disruption. Repairs are usually costly, as large numbers of affected constructions make damage assessment difficult, and post-earthquake reconstruction programmes often lack a heritage-specific approach. This research seeks to address these issues through a methodology based on high-end documentation technologies applied to built heritage and local community engagement.Design/methodology/approach The methodology proposed combines different recording tools to capture social and built environment data, such as interviews, mapping, drone capture, photography and 3D laser scanning, in the pilot case study of Bela, a historical settlement in the seismic region of Kutch in Gujarat, India, affected by the 2001 Bhuj earthquake. This paper particularly discusses aspects of community engagement around data capture and representation processes.FindingsThe introduction of advanced documentation technologies can help speed up the process of damage assessment, analyse social aspects that are key to a respectful re-construction, and enhance community engagement through visual representations, which are relevant to social acceptance and understanding towards a meaningful introduction and sustained use in earthquake risk management.Research limitations/implicationsThe methodology proposed can inform similar cases in seismic areas and enhance engagement, helping to develop a sense of awareness in the community regarding the need for preparedness in the face of earthquakes. However, there are technical challenges in using advanced recording technologies in terms of equipment accessibility, skills, knowledge and future uses of the data. Social and cultural aspects, such as caste and gender divisions, also implied disparity in accessing the data and relating it to the research team, bringing forward the need to tailor public engagement to achieve inclusivity. Practical implicationsThis study has practical implications. The most relevant one is how the process of carrying out the research served as a way to raise awareness for future seismic events. In this regard, local academic institutions and non-governmental organisations (NGOs) are critical mediators in reaching the community in greater depth, from which to bridge to external and/or governmental agencies based on existing links and trust.Social implicationsThis study also shows social implications. As a case study-based research, the link developed with the local community will help coordinate actions in case an earthquake occurs and increase cohesion within the community towards a joint aim, in this case, to reduce the risk of disasters due to seismic events.Originality/valueThis paper accounts for a novel approach to documenting buildings in heritage settlements prone to earthquakes that uses the digital record as (1) a basis to assess and intervene in the built environment and better understand how it supports the local community’s ways of living and maintaining buildings; and (2) a platform for local engagement and agency in planning and re-construction as a post-disaster mitigation measure.

Structural, optical absorption and electrical characteristics of sol-gel synthesized chromium-doped bismuth ferrites

Multiferroic materials have remarkable and several technical uses such as random-access multi-state memories, solar cell devices, data storage recording technologies, etc. An attempt has been made here to synthesize chromium-doped Bi(Fe1-xCrx)O3 (x = 0–0.10) oxides via citrate based sol-gel route and characterized with regards to structural, optical absorption and electrical properties. It depicts a rhombohedral structure with space group R3c for BiFeO3 and Bi(Fe0.98Cr0.02)O3 compositions. The lattice parameters for BiFeO3 on rhombohedral axes are aR ∼5.796 Å, α ∼59.34° which decreases linearly with chromium (x). Similarly, the parameters on hexagonal axes also decrease as aH ∼5.739–5.730 Å, and cH ∼14.269–14.262 Å. However, chromium doping causes a drop in crystallite size and rise in dislocation density. The absorption spectra show a broad peak at λ = 392 nm (for x = 0) and a broader as well as high intense peak for x = 0.02 (λ∼ 393 nm) which is attributed to charge transfer transitions from O2− (2p) valence band to Fe -3d (eg and t2g split levels) conduction band. Band at λ ∼310 nm is associated to the band gap (Eg) of material. Composition Bi(Fe0.98Cr0.02)O3 (x = 0.02) exhibits the highest values of the dielectric constant (εr ∼ 1102), loss (tan δ ∼ 1.1), and least value of impedance. The Cole-Cole plot depicts a depressed semi-circle and indicates presence of loss due to grains only. The room temperature P–E hysteresis loop with remanent polarization (Pr = 0.11439 μC/cm2) and leakage current density (J = 1.1 μA/cm2) are found maximum for Bi(Fe0.98Cr0.02)O3 (x = 0.02). The I-E loop and frequency-dependent P-E loops depict ferroelectric nature of all compositions. The analysis of leakage current density and slope values infer the presence of space charge limited conduction (SCLC) mechanism. These findings suggest materials applications in recent technologies.

Development and Usability of an Endoscopist Report Card Assessing ERCP Quality

Audit and feedback (A&F) for ERCP is relatively understudied despite the demonstrated effectiveness of A&F for endoscopic procedures such as colonoscopy. Endoscopist "report cards" are one such A&F tool. We aimed to develop an ERCP report card and assess its appropriateness, acceptability, and feasibility through usability testing. A prototype report card was designed using a combination of published quality indicators and established predictors of adverse events (AEs). Exploratory analyses from a prospective multicenter registry were performed to further identify novel and/or understudied parameters for possible inclusion. Semistructured interviews with ERCP endoscopists were conducted and framework analysis performed. Validated postinterview usability instruments were administered. Feedback was incorporated to create a final report card. The report card included domains of technical parameters, AE rates and prevention, and patient-reported experience measures (PREMs). Qualitative feedback was positive, with respondents agreeing with inclusion of relevant content in most domains. Postinterview instruments revealed adequate appropriateness and acceptability. PREMs were believed by respondents to be poorly actionable and were replaced with appropriateness of indication and fluoroscopy usage parameters in the final report card. Concerns were raised regarding the feasibility of implementation because of reliance on difficult-to-obtain granular intraprocedural data. We designed and tested an ERCP report card that has the potential to be an effective A&F intervention for endoscopists in clinical practice. Although feasibility of data capture and implementation are currently limitations, advances in video recording and artificial intelligence technologies could accelerate widespread adoption of such a tool.

SIAPIK: TRANSFORMASI DIGITAL SEBAGAI BASIS PENCATATATAN INFORMASI KEUANGAN UMKM DI IBU KOTA NUSANTARA (IKN)

The aim of this research is to assess the readiness to adopt the SIAPIK application as a digital financial recording technology for MSMEs in IKN. This research method is descriptive and tends to use analysis. The research was conducted in Kab. Penajam Paser Utara and Kab. Kutai Kartanegara which covers all MSMEs in the IKN area. The number of samples used was 2,456 MSMEs. Sample collection used interviews and the SIAPIK application installation and testing method. Based on the results of Canvas Business Modeling, it is known that Fish Crackers (milkfish amplang) have great potential to develop because of the unique raw materials and the IKN area will become the center of the country's capital and tourism. Apart from that, the readiness of MSMEs in the IKN area to adopt the SIAPIK application is not yet optimal because only 3.06% of business actors use this application to record business finances. The results of installation and testing show that business actors face challenges in using the SIAPIK application, this is due to the lack of accounting knowledge and the difficulty of using the SIAPIK application.

The influence of anisotropy on the character of hardening in additive high-strength alloys

The purpose of this work is to establish the dependence of the coefficients of planar anisotropy on the intensity of localized deformations in various loading ranges of transverse and longitudinal sections of samples of heat-resistant powder alloy Inconel 718 manufactured using SLM technology. The role of technological anisotropy of samples characteristic of SLM technology and its effect on the hardening of Inconel 718 alloy products is evaluated. Methods. To achieve this goal, the deformation diagrams of Inconel 718 powder alloy samples manufactured using SLM technology, measured during their stretching according to GOST 11701-84, were analyzed. Flat samples with a dividing grid applied to their surface were subjected to loading. During the tests, localized deformation of the samples in different sections was determined by measuring the geometry of the images of the dividing grid. A specially developed photo and video recording technology was used to capture these images. Results. The statistical analysis of the type and parameters of the deformation diagrams made it possible to determine the nature of changes in the intensity of stresses and deformations of the samples of the studied material. The linear character of its tensile hardening in the region of small values of strain intensity and the power-law character of hardening in the range of strain intensity from 0.03 to 0.17 were established. Conclusion. A significant effect of the technological anisotropy of Inconel 718 heat-resistant powder alloy samples obtained using SLM technology on the intensity of deformations is shown. The necessity of taking this fact into account in the development of technological processes for the production of responsible products from the studied material has been revealed.

PT Symmetry Breaking Induced Anomalous Valley Hall Effect in 2D Antiferromagnetic Semiconductor.

Realizing the anomalous valley Hall (AVH) effect in two-dimensional (2D) materials is of crucial importance for information processing and recording technology. While the research in this field mainly focuses on ferromagnetic systems, little is known about antiferromagnetic systems. Here, using k·p model analysis, we report a novel mechanism of realizing the AVH effect in 2D antiferromagnetic materials. This physics is related to the PT symmetry breaking induced by intrinsic staggered sublattice potential, which is introduced by asymmetric magnetic ions located at different sublattices. With reversal of the magnetic orientation on different sublattices, the AVH effect can be reversed. Based on first-principles calculations, we further demonstrate this mechanism in an antiferromagnetic monolayer of NiRuCl6. Intriguingly, due to the d orbital mismatch near the Fermi level, monolayer NiRuCl6 simultaneously owns zero net magnetization and large spin splitting and valley polarizations, which facilitates the observation of the AVH effect. Our findings greatly enrich the research on valley physics in antiferromagnetic systems.

Sustainable rewritable paper based on photoresponsive tungsten oxide quantum dots for anti-counterfeiting and waterproofing

Ink-free printing using photochromic paper has emerged as a promising technology for information recording, transmission, and secure interaction applications. Tungsten oxide quantum dots (WO3 QDs), with their rapid UV response, excellent photochemical stability, and outstanding fatigue resistance, exhibit significant potential as an ink-free medium in the construction of sustainable rewritable paper. However, challenges such as low binding force, poor stability, and weak scalability limit the development of reversible photochromic paper based on WO3. In this study, a novel sustainable rewritable paper based on a scalable strategy of covalent modification and hydrophobic layer protection has been reported. Specifically, cellulose papers modified with silane coupling agent were directly grafted with amino-modified WO3 QDs by covalent bonding through the addition reaction between epoxy and amine groups. Subsequently, the sustainable rewritable paper was obtained by the deposition of hydrophobic layer of polydimethylsiloxane (PDMS) via a dip-coating method. The rewritable paper exhibits exceptional properties, including high color contrast, extended color-retention (over 21 days), good rewritability (20 cycles) and excellent resistance to water or stains. Based on ink-free writing technology, the photo-responsive rewritable papers were utilized for anti-counterfeiting and encryption or decryption, demonstrating their great potential for information recording, storage, and security protection.

Analisis Mekanisme Pemungutan dan Penyetoran Retribusi Parkir di UPT Kepanjen

This research aims to analyze the mechanism for collecting and depositing parking fees at UPT Kepanjen. This research uses a qualitative approach with descriptive methods to provide an in-depth picture of the process of collecting and depositing parking fees. Data was obtained through interviews, observation and documentation involving various related parties, such as parking officers, UPT managers and parking service users. The research results show that the mechanism for collecting parking fees at UPT Kepanjen still faces several obstacles, such as a lack of transparency, a recording system that is not yet integrated, and minimal supervision. Apart from that, retribution payments also require improvements in terms of efficiency and accountability. This research recommends several improvements, including the application of information technology for recording and monitoring systems, increased training for parking officers, as well as stricter enforcement of rules to ensure parking fees are deposited on time and in accordance with established procedures. In this way, it is hoped that the mechanism for collecting and depositing parking fees at UPT Kepanjen can run more effectively and transparently, and provide an optimal contribution to regional income.

Arduino Nano Voice Recorder with MAX9814 Mic

This project involves creating a compact and efficient voice recorder using the Arduino Nano and the MAX9814 microphone amplifier. The device captures and stores high-quality audio, leveraging the Arduino Nano's small form factor and the superior audio sensitivity of the MAX9814. Ideal for various applications, including voice logging, sound monitoring, and DIY audio projects, this setup provides an affordable and accessible solution for enthusiasts and developers interested in audio recording technology. The project includes detailed instructions on hardware assembly and software implementation, ensuring ease of replication and customization.