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Articles 32731 - 32760 of 1104462
Full-Text Articles in Entire DC Network
High User Perception Of The Social Housing Of The State Intervenor In The South Suburban Zone, Tamaulipas, Mexico, Laura Del Carmen Moreno-Chimely, Yolanda Guadalupe Aranda-Jiménez, Carlos Alberto Fuentes-Pérez
High User Perception Of The Social Housing Of The State Intervenor In The South Suburban Zone, Tamaulipas, Mexico, Laura Del Carmen Moreno-Chimely, Yolanda Guadalupe Aranda-Jiménez, Carlos Alberto Fuentes-Pérez
HBRC Journal
Uninhabited social housing in the Southern Conurbation Zone of the state of Tamaulipas, Mexico (Tampico, Altamira) reflects 21.19%. Currently 11.32% is located in Altamira in subdivisions built by the private sector during the facilitator state. The social housing of the public sector of the intervenor state by governmental institutions such as INFONAVIT and FOVISSSTE, located in Tampico with more than 50 years old are almost entirely inhabited even with deteriorated constructive characteristics and economic depreciation. The objective of the research is to analyze the perception of the users of the housing state intervenor prior to 1992 and state facilitator 1993–2010 …
Accuracy Of Student Career Choice: Analysis Of Interest And Personality Match In The Industry 4.0 Era, Nikon Aritonang, I Nyoman Sudana Degeng, M Ramli, Adi Atmoko
Accuracy Of Student Career Choice: Analysis Of Interest And Personality Match In The Industry 4.0 Era, Nikon Aritonang, I Nyoman Sudana Degeng, M Ramli, Adi Atmoko
Buletin Konseling Inovatif
This study aims to clarify the high number of college students choosing unsuitable career choices. The impact of choosing an unsuitable career path can significantly hinder the development of Indonesian human resources in the context of the industry 4.0 era. This is caused by shifting paradigms in the recruitment process of most companies or institutions that no longer prioritize a diploma as the key factor in seeking new hires. Instead, there is greater emphasis on the employee's skills, interests, creativity, and innovation, followed by a diploma and achievement index. Descriptive-qualitative design was employed. Samples were collected from college students at …
Sulfurized Serpentine And Perovskite Assisted Graphitic Carbon Nitride Nanocomposites For Photocatalytic Green Hydrogen Production, Yahia Alanizan
Sulfurized Serpentine And Perovskite Assisted Graphitic Carbon Nitride Nanocomposites For Photocatalytic Green Hydrogen Production, Yahia Alanizan
Thesis/ Dissertation Defenses
Green hydrogen production has received great attention in recent years as a solution to mitigate greenhouse gas emissions resulted by burning fossil fuels. This thesis focuses on development of photocatalytic water splitting green hydrogen production under visible light irradiation of g-C3N4 based sulfurized naturally occurring serpentine rock and oxysulfide perovskite nanocomposites. This work reveals the effect of partial sulfurization of co-catalysts to boost charge generation, charge transfer, and light absorption. The presented work determined the potential of sulfurizing naturally occurring rocks and minerals acting as support and enhanced co-catalysts that exhibit narrower band gaps, with sulfur rich sites for visible …
Blind Medical Image Watermarking Method Using Combined Nsct/2d-Dct Domains, Ali Kouadri, Ali Benziane, Abdelhalim Rabehi, Mohamed Lebcir
Blind Medical Image Watermarking Method Using Combined Nsct/2d-Dct Domains, Ali Kouadri, Ali Benziane, Abdelhalim Rabehi, Mohamed Lebcir
Iraqi Journal for Computer Science and Mathematics
This paper presents a novel blind watermarking framework that combines Non-Subsampled Contourlet Transform (NSCT) and 2D Discrete Cosine Transform (DCT) domains. The proposed method embeds the watermark’s data within low-frequency coefficients of sub-vectors extracted from a concatenated NSCT/2D-DCT transforms processing. The embedding procedure involves simple differential processing which ensures a straightforward watermark extraction. Extensive testing across medical imaging modalities (X-ray, CT, MRI, ultrasound) confirmed strong imperceptibility and robustness against attacks like JPEG compression, noise, filtering, and geometric manipulations. Compared to contemporary techniques, our NSCT/2D-DCT method shows stronger robustness against attacks without compromising diagnostic quality, proving its viability for medical image …
A New Goodness-Of-Fit Test For Azzalini’S Skew-T Distribution Based On The Energy Distance Framework With Applications, Joseph Njuki, Abeer M. Hasan
A New Goodness-Of-Fit Test For Azzalini’S Skew-T Distribution Based On The Energy Distance Framework With Applications, Joseph Njuki, Abeer M. Hasan
Mathematics and Statistics
In response to the growing need for flexible parametric models for skewed and heavy-tailed data, this paper introduces a novel goodness-of-fit test for the Skew-t distribution, a widely used flexible parametric probability distribution. Traditional methods often fail to capture the complex behavior of data in fields such as engineering, public health, and the social sciences. Our proposed test, based on energy statistics, provides practitioners with a robust and powerful tool for assessing the suitability of the Skew-t distribution for their data. We present a comprehensive methodological evaluation, including a comparative study that highlights the advantages of our approach over traditional …
The Environmental Integration - An Introduction To The Sustainability Of The Urban Heritage Of Nubia (Applied To Gharb Suhail), Ahmed Mohamed Said Elsaadany
The Environmental Integration - An Introduction To The Sustainability Of The Urban Heritage Of Nubia (Applied To Gharb Suhail), Ahmed Mohamed Said Elsaadany
Mansoura Engineering Journal
The Nubia region is an important historical and cultural place, as it is distinguished by a unique architectural heritage. The influence of the surrounding environment on the designs of buildings and structures in this region is evident. Traditional architecture arose spontaneously over long periods of time, but it was essentially based on correct scientific concepts. The architecture of Nubia in southern Egypt, which is located on the banks of the Nile River, was a mud architecture that used natural building materials from the environment influenced by Ancient Egyptian architecture, some influences from Islamic architecture represented in privacy and courtyard in …
Quality Improvement Project: Standardized Medication Reconciliation Process Training: A Path To Improve Staff Medication Confidence, Christologus Obi
Quality Improvement Project: Standardized Medication Reconciliation Process Training: A Path To Improve Staff Medication Confidence, Christologus Obi
Doctor of Nursing Practice Projects
Medication reconciliation represents a critical safety process in psychiatric healthcare, where medication discrepancies affect up to 67% of hospitalized patients, with 30-40% potentially causing significant harm. This quality improvement project implemented a standardized medication reconciliation training program at a Texas mental health facility to address knowledge and confidence gaps among clinical staff. Using Kotter's 8-Step Change Model and the Iowa Model of Evidence-Based Practice, this quasi-experimental pre-post intervention study delivered three 30-minute interactive sessions to 12 multidisciplinary healthcare professionals. The evidence-based intervention introduced a 3-phase reconciliation model focused on obtaining accurate medication histories, documentation, and discrepancy resolution. Data collection used …
Toward Resilience In Broadacre Agriculture: A Methodological Review Of Remote Sensing In Crop Productivity, Phenology, And Environmental Stress Detection, Jenny Shen, Hai Wang, Hasnein Tareque
Toward Resilience In Broadacre Agriculture: A Methodological Review Of Remote Sensing In Crop Productivity, Phenology, And Environmental Stress Detection, Jenny Shen, Hai Wang, Hasnein Tareque
Agriculture Research Articles
Highlights
What are the main findings?
- Remote sensing methodologies for crop performance monitoring were systematically reviewed across the themes of productivity, phenology, and environmental stress.
- Advances and challenges were identified within individual themes and in their integration toward holistic monitoring.
What are the implications of the main findings?
- Emerging integration approaches offer pathways beyond monitoring toward decision-support systems for broadacre agriculture.
- Future directions of advancing resilience-focused applications of remote sensing are proposed.
Abstract
Large-scale rainfed cropping systems (broadacre agriculture) face intensifying climate and resource stresses that undermine yield stability and farm livelihoods. Remote sensing (RS) offers critical tools for improving …
Early Determination Of The Dorsal-Ventral Axis In Endochondral Ossification In Mice, Sixun Wu, Hirotaka Matsumoto, Jumpei Morita, Mina Yamabe, Azumi Noguchi, Shinsuke Ohba, Noriaki Ono, Yuki Matsushita
Early Determination Of The Dorsal-Ventral Axis In Endochondral Ossification In Mice, Sixun Wu, Hirotaka Matsumoto, Jumpei Morita, Mina Yamabe, Azumi Noguchi, Shinsuke Ohba, Noriaki Ono, Yuki Matsushita
Faculty, Staff and Student Publications
Endochondral ossification is a highly coordinated process involving distinct progenitor cell populations within the mesenchymal condensation and subsequent cartilage anlage and perichondrium, all of which drive skeletal formation. Cell-type specific lineage tracing conducted to understand fetal bone development has revealed various fates of early skeletal cells. However, the underlying continuous and precise cellular dynamics of fetal skeletal cells, particularly along the dorsoventral axis, remain unclear. Here, we show that spatiotemporally specific skeletal progenitor cells in the early developmental stage contribute to the dorsal-ventral axis in a manner that is strictly determined during initial developmental stages. Lineage-tracing experiments using Fgfr3-creER and …
Climate Change Has Increased Global Evaporative Demand Except In South Asia, Saeed Karimzadeh, Arman Ahmadi, Dennis Baldocchi, Joshua B. Fisher
Climate Change Has Increased Global Evaporative Demand Except In South Asia, Saeed Karimzadeh, Arman Ahmadi, Dennis Baldocchi, Joshua B. Fisher
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Climate change alters how strongly the atmosphere draws water from the land, yet a consistent global assessment of this evaporative demand has been lacking. Here, we analyze 45 years of climate data and global models to quantify trends in the key drivers—air temperature, humidity, radiation, wind speed, and cloud cover—that determine the atmosphere’s drying power. We find that evaporative demand has increased worldwide, indicating a stronger atmospheric thirst, except in South Asia, where it has declined. There, widespread irrigation has increased soil and air moisture, enhanced cloud formation, and reduced sunlight reaching the surface, counteracting the global signal. These contrasting …
Upcycling Carbide Slag Waste For Low-Temperature Co2 Sequestration: Direct Application And Adsorption After Chemical Alteration, Manisha Sukhraj Kothari
Upcycling Carbide Slag Waste For Low-Temperature Co2 Sequestration: Direct Application And Adsorption After Chemical Alteration, Manisha Sukhraj Kothari
Thesis/ Dissertation Defenses
Excessive carbon dioxide (CO₂) emissions and large-scale industrial waste generation are the results of rapid industrialization and ever-increasing energy demand. The recent trend of repurposing waste materials for pollution prevention is a promising approach to address both these environmental challenges. One such industrial waste residue generated from acetylene gas production is called carbide slag (CS). Its high Ca(OH)₂ content presents a promising opportunity for its utilization in CO₂ sequestration. However, CS waste is primarily studied as a CaO source for the intensive Ca-looping process. Despite the great potential, the high temperature requirements of the Ca-looping process limit its industrial application. …
Tax Trends, Harry Z. Garian
The Tax Adviser, Volume 15, Number 1 (Pilot Issue), January 1970, American Institute Of Certified Public Accountants
The Tax Adviser, Volume 15, Number 1 (Pilot Issue), January 1970, American Institute Of Certified Public Accountants
Tax Adviser
No abstract provided.
Faxes, Emails, And Cad: A Case Study Of The Changing Landscape In Born-Digital Design Records, 1994-2006, Julia D. Larson
Faxes, Emails, And Cad: A Case Study Of The Changing Landscape In Born-Digital Design Records, 1994-2006, Julia D. Larson
Journal of Western Archives
The article examines the technological changeover from analog to born digital design records in the mid-1990s, and is a case study in how one San Francisco Bay Area landscape architecture firm navigated the paradigm shift. The firm retained extensive documentation of the project management/construction administration for large scale projects, and this case study shows how archivists can utilize the analog documentation (like faxes and printed emails) to gain a greater understanding of how design firms began using Computer Aided Drafting and how CAD changed design and the process of archiving.
Tax Trends, Harry Z. Garian
An Enhanced Cyber Security For Finger Knuckle Print Recognition System Using Rubik’S Cube With Rabbit Encryption Algorithm, Haitham Salman Chyad, Tarek Abbes
An Enhanced Cyber Security For Finger Knuckle Print Recognition System Using Rubik’S Cube With Rabbit Encryption Algorithm, Haitham Salman Chyad, Tarek Abbes
Iraqi Journal for Computer Science and Mathematics
Cybersecurity in biometric systems is an urgent requirement due to their increasing use in identity verification, especially in smartphones, surveillance systems, and electronic transactions. These systems depend on distinctive and immutable biological features, such as fingerprints, Knuckles and facial features, making them potential targets for cyberattacks. In this context, the need to develop advanced security mechanisms, including encryption, forgery detection, and multi-factor authentication, has emerged to guarantee the confidentiality of biometric data and protect it from identity theft or manipulation. This trend emphasizes the need to integrate cybersecurity and biometric technologies to secure and ensure the reliability of systems in …
Web 2.0 And The Concept Of ‘Data Controller’: Recent Developments In Eu Data Protection Law, Maria Berger, David Eisendle
Web 2.0 And The Concept Of ‘Data Controller’: Recent Developments In Eu Data Protection Law, Maria Berger, David Eisendle
Indian Journal of Law and Technology
In order to operationalise the fundamental right to privacy, as reaffirmed by the Supreme Court in the landmark K.S. Puttaswamy judgment, the Indian government has recently introduced a draft data protection legislation. The present draft is inspired — to a considerable extent — by the EU’s GDPR and defines numerous key notions in largely identical terms. In view of these similarities, this paper seeks to examine the recent developments in the EU regarding the concept of ‘data controller’ and its application to what may be termed as a ‘Web 2.0 setting’. The paper commences with a review of the obligations …
Law Enforcement Access To Data In India: Considering The Past, Present, And Future Of Section 91 Of The Code Of Criminal Procedure, 1973, Tarun Krishnakumar
Law Enforcement Access To Data In India: Considering The Past, Present, And Future Of Section 91 Of The Code Of Criminal Procedure, 1973, Tarun Krishnakumar
Indian Journal of Law and Technology
Developments in modern technology and the Internet have resulted in vastly greater quantities of information being stored in electronic form. In addition to gains for convenience, innovation, and the economy, this trend also means that law enforcement and other government agencies are required to increasingly turn to the digital domain to gather evidence for investigative or enforcement purposes. In the Indian context, this usually means having to rely on pre-digital era procedural powers such as Section 91 the Code of Criminal Procedure, 1973. Drawing from existing literature, case law, and developments in policy, this article seeks to conduct an analysis …
The Aadhaar Verdict And The Surveillance Challenge, Ananth Padmanabhan, Vasudha Singh
The Aadhaar Verdict And The Surveillance Challenge, Ananth Padmanabhan, Vasudha Singh
Indian Journal of Law and Technology
Conventional responses to privacy protection, such as the notice-and-consent framework, are inapposite to a datafied world where ubiquitous data collection is facilitated by a range of advanced technologies. Such traditional frameworks also commonly vest the State with more leeway than private companies to access personal data, which amplifies privacy harms in case of State use of data. Despite the ominous possibility of State surveillance, the Indian judiciary has thus far grappled with the right to privacy through a narrow lens focused on individual privacy risks rather than structural moves towards a surveillance society. This article explores a different viewpoint by …
Fusion Of Simulation And Ai Methods For Understanding Hov/Hot Lane Operational Flow Dynamics, Deo Chimba, Therezia Matongo, Hellen Shita, Erickson Senkondo, Masanja Madalo, Afia Yeboah
Fusion Of Simulation And Ai Methods For Understanding Hov/Hot Lane Operational Flow Dynamics, Deo Chimba, Therezia Matongo, Hellen Shita, Erickson Senkondo, Masanja Madalo, Afia Yeboah
Civil and Architectural Engineering Faculty Research
This study investigated the impact of converting High Occupancy Vehicle (HOV) lanes to High Occupancy Toll (HOT) lanes on fundamental traffic flow characteristics, focusing on speed, density, and flow relationships. A 25-mile HOV corridor along I-24 Westbound in Nashville, Tennessee was evaluated using both microscopic simulation via VISSIM and data-driven machine learning through a Multi-Layer Perceptron (MLP) neural network. Four operational scenarios were assessed: (1) HOV lanes without enforcement, (2) HOV lanes with effective occupancy enforcement, (3) HOT lanes with limited access points, and (4) HOT lanes with intermediate access points. Flow-density and speed-flow relationships were modeled using Greenshields theory …
The Tamads2-Tatbl21 Module Enhances Wheat Resistance To Stripe Rust By Activating Tagkl-Mediated Immunity, Shijia Zhao, Hao Chu, Yanan Lu, Jiaqi Chen, Xu Wang, Guangxiang Tian, Mingjing Zhang, Pengyu Song, Yanhui Zhang, Guihua Bai, Gangming Zhan, Zhensheng Kang, Wenming Zheng, Zhengqing Fu, Na Liu
The Tamads2-Tatbl21 Module Enhances Wheat Resistance To Stripe Rust By Activating Tagkl-Mediated Immunity, Shijia Zhao, Hao Chu, Yanan Lu, Jiaqi Chen, Xu Wang, Guangxiang Tian, Mingjing Zhang, Pengyu Song, Yanhui Zhang, Guihua Bai, Gangming Zhan, Zhensheng Kang, Wenming Zheng, Zhengqing Fu, Na Liu
Faculty Publications
Wheat stripe rust (Puccinia striiformis f. sp. tritici, Pst) poses a catastrophic threat to global food security. While MADS-box transcription factors regulate development and abiotic stress, their roles in plant-pathogen immunity remain enigmatic. In this study, we identified TaMADS2, a Pst-induced MADS-box gene, as a positive regulator of wheat resistance. Functional analyses demonstrated that TaMADS2 overexpression significantly enhanced Pst resistance, whereas its knockdown rendered wheat more susceptible. Further investigation revealed that TaMADS2 interacts with trichome birefringence-like protein 21 (TaTBL21) to activate glycerol kinase-like (TaGKL) expression. Silencing TaGKL in wild-type or TaMADS2-overexpressing lines …
Assessing The Impact Of Cultural Competence Training For Providers Serving Native Americans, Chinazo Obi
Assessing The Impact Of Cultural Competence Training For Providers Serving Native Americans, Chinazo Obi
Doctor of Nursing Practice Projects
The United States is a culturally diverse nation, yet many healthcare providers report challenges in delivering care that respects cultural values and traditions. Within mental health settings, this gap is especially concerning for Native American populations, who experience disproportionately high rates of mental health conditions and face barriers to culturally responsive care. The purpose of this quality improvement project was to assess the impact of a cultural competence education and training intervention on mental health providers’ knowledge and self-efficacy in delivering culturally competent care to Native American patients. Guided by Leininger’s Culture Care Theory of Diversity and Universality and the …
Retrieval Augmented Framework For Deepfake Audio Detection, Avinash Saxena
Retrieval Augmented Framework For Deepfake Audio Detection, Avinash Saxena
Master's Theses
The widespread use of AI-based audio deepfakes threatens severely to undermine media integrity and public trust. Speech synthesis techniques have improved dramatically in voice conversion (VC) and text-to-speech (TTS) in recent years, making forgeries sound highly realistic, and concerns are raised about possible malevolent uses. Existing state-of-the-art techniques for identifying fake speech have proven to be effective in some cases but are still limited in application and robustness when faced with novel attacking strategies, different acoustic conditions, or alternative linguistic domains. To address some of these limitations, the current research presents a novel deepfake audio detection system based on personalized …
Development Of A Digestion Procedure Using Fe2+ Ions For Electrochemical Detection Of Mno2 Particles In Drinking Water, Kayla Elliott, Sarah Jane Payne, Zhe She
Development Of A Digestion Procedure Using Fe2+ Ions For Electrochemical Detection Of Mno2 Particles In Drinking Water, Kayla Elliott, Sarah Jane Payne, Zhe She
Journal of Electrochemistry
Developing methods for detection contaminants in drinking water is essential to ensuring that safe and acceptable quality drinking water is delivered to consumers. While manganese (Mn) was previously known only as a mere aesthetic issue, recent epidemiological data has shown to have negative neurological effects on humans, especially on children, prompting new health-based guidelines by Health Canada and the World Health Organization. In drinking water, Mn exists predominantly as Mn(II) and Mn(IV), and is regulated based on total Mn levels. Interestingly, measurement of Mn particulate using electroanalytical methods has not yet been reported in the literature. Herein, a digestion procedure …
High Variability In Flood Discharge And Stage Accelerates River Mobility, Chenliang Wu, Wonsuck Kim, Shuo Yang, Frank Tsai, Jeffrey A. Nittrouer, Tian Y. Dong, Duhwan Keum, Kyle M. Straub
High Variability In Flood Discharge And Stage Accelerates River Mobility, Chenliang Wu, Wonsuck Kim, Shuo Yang, Frank Tsai, Jeffrey A. Nittrouer, Tian Y. Dong, Duhwan Keum, Kyle M. Straub
School of Earth, Environmental, & Marine Sciences Faculty Publications
Lateral channel migration is a fundamental process in natural alluvial rivers; however, the factors that control the rate of migration remain unclear. Despite its importance in shaping river morphology, the impact of water discharge on river mobility is still largely unexplored. Here, we leverage a dataset of 64 rivers across the globe to show that higher variability in river discharge and stage promotes higher rates of river migration. To reveal the physical processes behind this relationship, we focused analyses on the lowermost 500 kilometers of the Mississippi River, where a pronounced gradient in water stage variability and migration rate exists. …
Ai-Based Mapping Of Offshore Wind Energy Around The Korean Peninsula Using Sentinel-1 Sar And Numerical Weather Prediction Data, Jason Sung-Uk Joh, Son V. Nghiem, Menas Kafatos, Jay Liu, Jinsoo Kim, Seung Hee Kim
Ai-Based Mapping Of Offshore Wind Energy Around The Korean Peninsula Using Sentinel-1 Sar And Numerical Weather Prediction Data, Jason Sung-Uk Joh, Son V. Nghiem, Menas Kafatos, Jay Liu, Jinsoo Kim, Seung Hee Kim
Institute for ECHO Articles and Research
Offshore wind farm projects are being promoted in the seas surrounding the Korean Peninsula to secure renewable energy. To support site selection, offshore wind resource maps were generated using deep neural networks trained on Sentinel-1 SAR imagery, numerical weather prediction data, offshore wind observations, sea surface temperature, and bathymetry. The deep neural network (DNN) framework consisted of six sub-models targeting eastward and northward wind components across three regions—the Yellow Sea, Korea Strait, and East Sea—to account for spatial heterogeneity. The proposed models outperformed existing approaches, achieving mean absolute errors (MAE) ranging from 1.31 to 1.69 m/s and correlation coefficients (CC) …
Risk Assessment Of Salmonella Spp. Exposure Among Chicken Farm Workers In Phatthalung Province, Southern Thailand, Nutthajit Onmek, Nongyao Mueangdee
Risk Assessment Of Salmonella Spp. Exposure Among Chicken Farm Workers In Phatthalung Province, Southern Thailand, Nutthajit Onmek, Nongyao Mueangdee
Kesmas
This study examined the risk of Salmonella spp. exposure among chicken farm workers by evaluating occupational health management practices. The probability of exposure was determined by assessing the number of contamination points. Sampling for Salmonella spp. contamination was conducted at 7 and 45 days of chicken batches across five areas, alongside evaluation of worker behaviors to assess exposure risk. Three of the 12 large closed-system farms, each housing >10,000 chickens, were selected. Results indicated that boots were the most contaminated items. Workers generally adhered to habitual boot-wearing, which reduced the risk of exposure. Moderate levels of workers' exposure prevention practices, …
Analysis Of Public Knowledge, Attitudes, And Practices In Food And Drug Selection In Indonesia, Tina Wikara, Sri Astuti, Sri Nurhayati, Rotua Uli Carolina, Evi Ratna Sari
Analysis Of Public Knowledge, Attitudes, And Practices In Food And Drug Selection In Indonesia, Tina Wikara, Sri Astuti, Sri Nurhayati, Rotua Uli Carolina, Evi Ratna Sari
Kesmas
As consumers, the public plays a vital role in ensuring the safe and appropriate use of products. This study aimed to assess awareness of food and drug safety and quality among the Indonesian population. Using a cross-sectional survey, the authors measured public awareness across three key dimensions: knowledge, attitudes, and practices. Data were collected from 20,610 respondents aged 17–65 years from 34 provinces in Indonesia. The survey approach employed a three-stage stratified sampling design. Data were collected through structured face-to-face interviews, and the results were presented as an index ranging from 0 to 100 (low to high awareness). The respondents …
Emission Characterization And Health Risk Assessment Of Volatile Organic Compounds From Automotive Painting In Thailand, Vanitchaya Kultan, Sarawut Thepanondh, Jutarat Keawboonchu, Nattaporn Pinthong, Wissawa Malakan
Emission Characterization And Health Risk Assessment Of Volatile Organic Compounds From Automotive Painting In Thailand, Vanitchaya Kultan, Sarawut Thepanondh, Jutarat Keawboonchu, Nattaporn Pinthong, Wissawa Malakan
Kesmas
The automotive industry is a significant source of volatile organic compound (VOC) emissions, particularly from solvent-based painting processes. This study evaluated VOC characteristics and distribution to assess associated health risks for workers and communities at varying distances from automotive painting facilities in Thailand, focusing on stacks and wastewater treatment plants that handle solvent-containing wastewater. The findings revealed aromatic compounds were predominant (66% of the total emissions), followed by oxygenated VOCs (26%). The stacks mainly emitted aromatics such as toluene and ethylbenzene, whereas the wastewater released oxygenated VOCs, particularly methyl isobutyl ketone and methyl ethyl ketone. The exposure concentrations in each …
Fluorosilane-Induced Softening And Collapse Of Micropillar Arrays, Gabriela Moreira Lana, Maja Fehlberg, Petra Herbeck-Engel, Gisela Heppe, Raimund Schlüßler, Torsten Jähnke, Eduard Arzt, Roland Bennewitz
Fluorosilane-Induced Softening And Collapse Of Micropillar Arrays, Gabriela Moreira Lana, Maja Fehlberg, Petra Herbeck-Engel, Gisela Heppe, Raimund Schlüßler, Torsten Jähnke, Eduard Arzt, Roland Bennewitz
Chemical and Biochemical Engineering Faculty Research & Creative Works
Replica molding is a widely used technique for the fabrication of polymer microstructures. As structural dimensions decrease, anti-stick surface treatment of the mold becomes increasingly critical to ensure clean demolding and preserve structural integrity. We fabricated arrays of micropillars with 20 µm diameter and 60 µm height using medical-grade polydimethylsiloxane (PDMS), MDX4-4210, and observed a high fraction of collapsed pillars for the first molding after fluorosilanization of the mold to reduce sticking. To address this issue, we systematically investigated the surface treatment protocol for the molds, made from the PDMS Sylgard 184. We provide results from complementary measurement methods, to …