This document summarizes research on nano-devices for enhanced cooling, storage, and sensing. It discusses using carbon nanotube coatings to enhance cooling in boiling by 30-300% and using silicon nano-fins to enhance cooling by 120%. It also discusses using nanofluids to enhance cooling by 8-30% and exploring their use for solar thermal energy conversion. Further, it discusses using dip pen nanolithography and microfluidics to develop nano-sensors for applications such as cancer detection, explosives detection, and nano-catalysis.
Enabling Technology to Lightweight Automobiles - SPE ACCE presentationAcrolab Ltd.
Presentation delivered at the 10th Annual Society of Plastics Engineers, Automotive Conference and Exhibition - Troy MIAcrolab - SPE ACCE -- The ISOMANDREL - An Enabling Technology to Lightweight Automobiles
This document summarizes research on using heat pipes to control cooling in permanent molds for casting aluminum alloys. Heat pipes can selectively cool specific locations at specific times by transferring heat through phase changes without moving parts. Researchers at McGill University developed a water-based McGill Heat Pipe that can handle heat fluxes over 1 MW/m2. Testing showed heat pipes refined the microstructure and reduced the dendrite arm spacing of aluminum alloy castings compared to uncooled molds. The technology has applications for cooling permanent molds, reducing superheat in continuous casters, and cooling electrolytic cells and furnace off-gases.
Pro high-alumina-cumiloxaplicacion calcinada y tabular o sinterizadaFranyori Torres
This document discusses high alumina refractories produced by Carborundum Universal Limited. It provides information on several product lines - CUMILOX, CUMILOX M, CUMILOX K313W, and others. For each product line, it lists key properties like maximum service temperature, bulk density, cold crushing strength, thermal conductivity, and chemical composition. It also identifies common user industries and applications for these refractories, which include fertilizer plants, petrochemical facilities, foundries, and more. Overall, the document introduces Carborundum's high alumina refractory products and provides their typical specifications and characteristics.
National Conference on Energy, Materials and Communication Systems was about energy harvesting using nanotechnology. The document discusses how nanotechnology can be used to develop piezoelectric materials that can convert pressure into electrical energy and could power devices like phones, laptops, and pacemakers through human movement and blood pressure. While the concept of energy harvesting using piezoelectric nano materials has been demonstrated, actual mass production of these structures is complicated according to some philosophers. The study focused on developing thin film piezoelectric coatings which may be better suited for integrating into electronic devices.
The document discusses heat and mass transfer characteristics of Al2O3/DIW nanofluids in a horizontal mini tube. Thermal conductivity and viscosity of the nanofluids were tested at varying nanoparticle concentrations and temperatures. Results showed that thermal conductivity increased with nanoparticle concentration and temperature, while viscosity increased with concentration but decreased with temperature. Friction factor and pressure drop also increased with volume flow rate. Potential applications of nanofluids include improved heat transfer in electronics, automotive, aerospace, and industrial systems.
Enabling Technology to Lightweight Automobiles - SPE ACCE presentationAcrolab Ltd.
Presentation delivered at the 10th Annual Society of Plastics Engineers, Automotive Conference and Exhibition - Troy MIAcrolab - SPE ACCE -- The ISOMANDREL - An Enabling Technology to Lightweight Automobiles
This document summarizes research on using heat pipes to control cooling in permanent molds for casting aluminum alloys. Heat pipes can selectively cool specific locations at specific times by transferring heat through phase changes without moving parts. Researchers at McGill University developed a water-based McGill Heat Pipe that can handle heat fluxes over 1 MW/m2. Testing showed heat pipes refined the microstructure and reduced the dendrite arm spacing of aluminum alloy castings compared to uncooled molds. The technology has applications for cooling permanent molds, reducing superheat in continuous casters, and cooling electrolytic cells and furnace off-gases.
Pro high-alumina-cumiloxaplicacion calcinada y tabular o sinterizadaFranyori Torres
This document discusses high alumina refractories produced by Carborundum Universal Limited. It provides information on several product lines - CUMILOX, CUMILOX M, CUMILOX K313W, and others. For each product line, it lists key properties like maximum service temperature, bulk density, cold crushing strength, thermal conductivity, and chemical composition. It also identifies common user industries and applications for these refractories, which include fertilizer plants, petrochemical facilities, foundries, and more. Overall, the document introduces Carborundum's high alumina refractory products and provides their typical specifications and characteristics.
National Conference on Energy, Materials and Communication Systems was about energy harvesting using nanotechnology. The document discusses how nanotechnology can be used to develop piezoelectric materials that can convert pressure into electrical energy and could power devices like phones, laptops, and pacemakers through human movement and blood pressure. While the concept of energy harvesting using piezoelectric nano materials has been demonstrated, actual mass production of these structures is complicated according to some philosophers. The study focused on developing thin film piezoelectric coatings which may be better suited for integrating into electronic devices.
The document discusses heat and mass transfer characteristics of Al2O3/DIW nanofluids in a horizontal mini tube. Thermal conductivity and viscosity of the nanofluids were tested at varying nanoparticle concentrations and temperatures. Results showed that thermal conductivity increased with nanoparticle concentration and temperature, while viscosity increased with concentration but decreased with temperature. Friction factor and pressure drop also increased with volume flow rate. Potential applications of nanofluids include improved heat transfer in electronics, automotive, aerospace, and industrial systems.
This document provides specifications for borosilicate glass 3.3 tubing and rod from Linuo Group Co. It includes:
1. Physical and chemical performance parameters such as coefficient of linear expansion, viscosity temperatures, density, and chemical composition.
2. Guidelines for processing the glass tubing including recommended annealing temperatures and schedules.
3. Detailed specifications listing available outside diameters and wall thickness options for borosilicate glass tubing and rods.
This document summarizes research on self-organized porous alumina templates and their applications in nanofabrication. It describes the experimental techniques for synthesizing porous alumina templates through anodization of aluminum foils. Factors that influence the pore size and spacing are discussed, such as applied voltage, aluminum purity, and etching time. Various deposition methods are also summarized, such as electrodeposition of nickel and sputtering of cobalt through the templates. Finally, potential applications of these templates in areas such as carbon nanotube growth and their optical properties are mentioned.
This document discusses using heat pipe technology in mandrels for filament winding applications. It begins by outlining the benefits of heat pipes, such as rapid heat transfer without power or mechanical connections. It then describes how heat pipe enhanced (HPTE) mandrels can provide more uniform heating during curing compared to traditional mandrels. Testing shows HPTE mandrels become isothermal quickly when heated, while traditional mandrels have large temperature differences. The document concludes by discussing how HPTE mandrels allow "out of oven" induction curing of wound parts with less porosity than oven curing.
High
End RTP Production System
For 200 mm / 300 mm wafer size
For 180 nm, 130 nm, and 100 nm technology
Processes
Implant activation
S/D
Ultra
Shallow Junction Formation
TiSi
2 , CoSi 2 processes
Dry oxides, oxynitrides
Steam applications
STI liner oxides
Sidewall oxides
Thin gate oxides
PSG and BPSG reflow processes
Others
The document discusses thermomechanical processing techniques to improve the properties of BiSrCaCuO superconducting wire. Several techniques are investigated including cold rolling, annealing, compression annealing, and hot isostatic pressing. Initial results show that compression annealing improved critical current over as-received and annealed-only samples, while cold rolling reduced superconductivity. Further assessment of effective processing parameters and microstructure is planned to optimize texture and critical current.
High Efficiency Thermal Management TechnologiesPS Lee
Overview of high efficiency thermal management technologies being developed at the Centre for Energy Research & Technology at the National University of Singapore.
1) Vapor deposited As2S3 films deposited on heated substrates had higher onset temperatures for glass transition than films deposited at room temperature or bulk glass, indicating higher kinetic stability.
2) This is the first observation of higher kinetic stability in vapor deposited inorganic glass films compared to bulk glass.
3) However, quantifying the kinetic stability is complicated by exothermic relaxation of internal strains in the glass structure observed in these films.
Experimental Investigation of Pool Boiling Enhancement on Different Structure...IRJET Journal
1) The document experimentally investigates pool boiling enhancement on different structured surfaces, including plain, V-shaped, and square structures.
2) The experiment was conducted in a boiling chamber by varying the electric supply and applying/not applying vibration. Surface temperature and heat flux were calculated.
3) The results showed that the square surface provided more appreciable heat flux and heat transfer coefficient compared to the other surfaces. Modifying the surface structure can enhance pool boiling heat transfer.
The document introduces FLEMION F-9060, a new membrane from AGC with the lowest voltage. F-9060 shows a voltage 40mV lower than the previous standard F-9010 in commercial plants. It also has high CE stability. Testing in laboratories shows F-9060 has both the lowest voltage and highest CE, as well as a wider operational temperature range than F-9010, especially at higher temperatures and current densities. This makes it suitable for zero-gap electrolyzers. F-9060 demonstrates high durability against impurities in brine and resistance to nickel staining, important for long-term performance under high current density operation.
MACHINING WITH CRYOGENCALLY TREATED tungsten carbide TOOL INSERTSVADLAJAGADEESHWARAAC
This document summarizes a seminar on cryogenically treated tool inserts for machining. Cryogenic treatment involves processing materials at very low temperatures, around -196°C. It was presented to discuss how cryogenic treatment of tungsten carbide tool inserts leads to a refinement of the material structure through diffusion processes during cooling and heating. This results in improved properties like increased hardness and wear resistance of the treated tool inserts compared to untreated ones. The document reviews various studies on the effects of cryogenic treatment and analyzes the microstructure and properties of treated versus untreated tool materials.
This document summarizes a study that uses computational fluid dynamics (CFD) to evaluate the performance of an all-glass evacuated tube solar water heater with twist tape inserts. The study develops a numerical model to simulate fluid flow and heat transfer in a single collector tube. Results show that twist tape inserts reduce velocity magnitude and make the temperature field more uniform compared to a plain tube. Over the range tested, twist tapes with relative twisted ratios of 2.5 and 4 produce Nusselt numbers that are 1.07% smaller and 9.29% larger, respectively, than a normal tube without inserts.
This document summarizes the key features and specifications of Taconic's MCCL products. It provides details on the product portfolio, heat dissipation performance, dielectric breakdown voltage, hipot testing reliability, and general material properties. Testing results show the MCCL products have high dielectric breakdown voltages above 5kV on average, excellent heat dissipation capabilities, and 100% hipot reliability when tested up to 3kV. Customized product dimensions and metal types are available.
JUAN J. MILÓN G., Researcher, Technological Research Laboratory in energy, San Pablo Catholic University, Arequipa, Perú,
SERGIO L. BRAGA, Researcher, Energy Laboratory, Pontifical Catholic University of Rio de Janeiro. Rio de Janeiro. Brazil
Experimental Studies on Pool Boiling Heat Transfer Using Alumina and Graphene...IRJET Journal
This document presents an experimental study on pool boiling heat transfer using alumina and graphene oxide nanofluids. The study tested different concentrations of alumina and graphene oxide nanofluids to determine their effect on critical heat flux during pool boiling. Scanning electron microscope images showed that higher concentrations resulted in a porous nanoparticle layer forming on the heating surface, which significantly improved critical heat flux. Alumina nanofluids achieved up to 56.27% higher critical heat flux than distilled water, while graphene oxide nanofluids achieved up to 51% higher critical heat flux. The experimental results indicate that nanofluids have potential to enhance pool boiling heat transfer and critical heat flux.
This document describes a new solar roof tile system invented by Frédéric Marçais that incorporates a water tube to capture solar thermal energy. The system uses standard clay roof tiles with a modified profile that allows a water tube to make direct contact for heat transfer. Prototypes were tested by a university and found to have efficiencies between 7-20%, with the potential to reach 30% after further optimization. The system provides a low-cost way to harvest solar energy using local materials and blends seamlessly with traditional roof aesthetics for both new buildings and renovation projects.
The document describes the design of a MEMS sensor to measure fluid flow parameters such as flow rate, velocity, direction, and pressure using hotwire principles. It involves designing resistive elements on a silicon carbide substrate that can produce heat when current is passed through and allow changes in temperature to be detected. Fabrication of low-cost silicon carbide is also discussed using porous silicon as a template in a chemical vapor deposition process. The sensor aims to provide accurate readings of flow and pressure in applications such as aerospace, medical devices, automotive, and semiconductor manufacturing.
The 3D IC technology involves stacking two or more layers of active electronic components vertically and horizontally on a single circuit. This document discusses the concept of integrated microchannel cooling for 3D ICs. It describes the fabrication process, theoretical analysis, experimental characterization, benefits, and challenges of this technology. Microchannel cooling allows for improved thermal resistance over air cooling methods. The 3D IC technology enables shorter interconnect lengths and reduced switching energy.
Design of Micro Cooling Channel for Plastic Injection Moulding by using Mold ...IRJET Journal
This document describes research on designing micro cooling channels for plastic injection molds to improve cooling efficiency and reduce cycle times. It discusses heat transfer modes during molding and calculating cooling requirements. Methods include creating conformal micro channels near the mold surface using 3D printing. Simulations using Moldflow Advisor analyze different channel designs, showing micro channels provide more uniform cooling over smaller areas. The results indicate micro channels can reduce non-uniformity compared to standard channels, decreasing cycle times for plastic parts.
HEAT TRANSFER ANALYSIS OF EFFECTS OF LONGITUDINAL FINS ON HEAT TRANSFER IN DO...IRJET Journal
This document analyzes heat transfer in a double pipe heat exchanger with and without longitudinal fins. It was found that using longitudinal fins improves heat transfer performance. Specifically:
1) Heat transfer rate and LMTD increased by 28.42 watts and 12.5 watts respectively with fins compared to without fins.
2) Effectiveness, which is a measure of heat exchanger performance, increased from 0.3211 without fins to 0.3533 with fins.
3) Overall heat transfer coefficient and rate of heat transfer were higher with fins, showing fins enhance heat transfer in double pipe heat exchangers.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
This document provides specifications for borosilicate glass 3.3 tubing and rod from Linuo Group Co. It includes:
1. Physical and chemical performance parameters such as coefficient of linear expansion, viscosity temperatures, density, and chemical composition.
2. Guidelines for processing the glass tubing including recommended annealing temperatures and schedules.
3. Detailed specifications listing available outside diameters and wall thickness options for borosilicate glass tubing and rods.
This document summarizes research on self-organized porous alumina templates and their applications in nanofabrication. It describes the experimental techniques for synthesizing porous alumina templates through anodization of aluminum foils. Factors that influence the pore size and spacing are discussed, such as applied voltage, aluminum purity, and etching time. Various deposition methods are also summarized, such as electrodeposition of nickel and sputtering of cobalt through the templates. Finally, potential applications of these templates in areas such as carbon nanotube growth and their optical properties are mentioned.
This document discusses using heat pipe technology in mandrels for filament winding applications. It begins by outlining the benefits of heat pipes, such as rapid heat transfer without power or mechanical connections. It then describes how heat pipe enhanced (HPTE) mandrels can provide more uniform heating during curing compared to traditional mandrels. Testing shows HPTE mandrels become isothermal quickly when heated, while traditional mandrels have large temperature differences. The document concludes by discussing how HPTE mandrels allow "out of oven" induction curing of wound parts with less porosity than oven curing.
High
End RTP Production System
For 200 mm / 300 mm wafer size
For 180 nm, 130 nm, and 100 nm technology
Processes
Implant activation
S/D
Ultra
Shallow Junction Formation
TiSi
2 , CoSi 2 processes
Dry oxides, oxynitrides
Steam applications
STI liner oxides
Sidewall oxides
Thin gate oxides
PSG and BPSG reflow processes
Others
The document discusses thermomechanical processing techniques to improve the properties of BiSrCaCuO superconducting wire. Several techniques are investigated including cold rolling, annealing, compression annealing, and hot isostatic pressing. Initial results show that compression annealing improved critical current over as-received and annealed-only samples, while cold rolling reduced superconductivity. Further assessment of effective processing parameters and microstructure is planned to optimize texture and critical current.
High Efficiency Thermal Management TechnologiesPS Lee
Overview of high efficiency thermal management technologies being developed at the Centre for Energy Research & Technology at the National University of Singapore.
1) Vapor deposited As2S3 films deposited on heated substrates had higher onset temperatures for glass transition than films deposited at room temperature or bulk glass, indicating higher kinetic stability.
2) This is the first observation of higher kinetic stability in vapor deposited inorganic glass films compared to bulk glass.
3) However, quantifying the kinetic stability is complicated by exothermic relaxation of internal strains in the glass structure observed in these films.
Experimental Investigation of Pool Boiling Enhancement on Different Structure...IRJET Journal
1) The document experimentally investigates pool boiling enhancement on different structured surfaces, including plain, V-shaped, and square structures.
2) The experiment was conducted in a boiling chamber by varying the electric supply and applying/not applying vibration. Surface temperature and heat flux were calculated.
3) The results showed that the square surface provided more appreciable heat flux and heat transfer coefficient compared to the other surfaces. Modifying the surface structure can enhance pool boiling heat transfer.
The document introduces FLEMION F-9060, a new membrane from AGC with the lowest voltage. F-9060 shows a voltage 40mV lower than the previous standard F-9010 in commercial plants. It also has high CE stability. Testing in laboratories shows F-9060 has both the lowest voltage and highest CE, as well as a wider operational temperature range than F-9010, especially at higher temperatures and current densities. This makes it suitable for zero-gap electrolyzers. F-9060 demonstrates high durability against impurities in brine and resistance to nickel staining, important for long-term performance under high current density operation.
MACHINING WITH CRYOGENCALLY TREATED tungsten carbide TOOL INSERTSVADLAJAGADEESHWARAAC
This document summarizes a seminar on cryogenically treated tool inserts for machining. Cryogenic treatment involves processing materials at very low temperatures, around -196°C. It was presented to discuss how cryogenic treatment of tungsten carbide tool inserts leads to a refinement of the material structure through diffusion processes during cooling and heating. This results in improved properties like increased hardness and wear resistance of the treated tool inserts compared to untreated ones. The document reviews various studies on the effects of cryogenic treatment and analyzes the microstructure and properties of treated versus untreated tool materials.
This document summarizes a study that uses computational fluid dynamics (CFD) to evaluate the performance of an all-glass evacuated tube solar water heater with twist tape inserts. The study develops a numerical model to simulate fluid flow and heat transfer in a single collector tube. Results show that twist tape inserts reduce velocity magnitude and make the temperature field more uniform compared to a plain tube. Over the range tested, twist tapes with relative twisted ratios of 2.5 and 4 produce Nusselt numbers that are 1.07% smaller and 9.29% larger, respectively, than a normal tube without inserts.
This document summarizes the key features and specifications of Taconic's MCCL products. It provides details on the product portfolio, heat dissipation performance, dielectric breakdown voltage, hipot testing reliability, and general material properties. Testing results show the MCCL products have high dielectric breakdown voltages above 5kV on average, excellent heat dissipation capabilities, and 100% hipot reliability when tested up to 3kV. Customized product dimensions and metal types are available.
JUAN J. MILÓN G., Researcher, Technological Research Laboratory in energy, San Pablo Catholic University, Arequipa, Perú,
SERGIO L. BRAGA, Researcher, Energy Laboratory, Pontifical Catholic University of Rio de Janeiro. Rio de Janeiro. Brazil
Experimental Studies on Pool Boiling Heat Transfer Using Alumina and Graphene...IRJET Journal
This document presents an experimental study on pool boiling heat transfer using alumina and graphene oxide nanofluids. The study tested different concentrations of alumina and graphene oxide nanofluids to determine their effect on critical heat flux during pool boiling. Scanning electron microscope images showed that higher concentrations resulted in a porous nanoparticle layer forming on the heating surface, which significantly improved critical heat flux. Alumina nanofluids achieved up to 56.27% higher critical heat flux than distilled water, while graphene oxide nanofluids achieved up to 51% higher critical heat flux. The experimental results indicate that nanofluids have potential to enhance pool boiling heat transfer and critical heat flux.
This document describes a new solar roof tile system invented by Frédéric Marçais that incorporates a water tube to capture solar thermal energy. The system uses standard clay roof tiles with a modified profile that allows a water tube to make direct contact for heat transfer. Prototypes were tested by a university and found to have efficiencies between 7-20%, with the potential to reach 30% after further optimization. The system provides a low-cost way to harvest solar energy using local materials and blends seamlessly with traditional roof aesthetics for both new buildings and renovation projects.
The document describes the design of a MEMS sensor to measure fluid flow parameters such as flow rate, velocity, direction, and pressure using hotwire principles. It involves designing resistive elements on a silicon carbide substrate that can produce heat when current is passed through and allow changes in temperature to be detected. Fabrication of low-cost silicon carbide is also discussed using porous silicon as a template in a chemical vapor deposition process. The sensor aims to provide accurate readings of flow and pressure in applications such as aerospace, medical devices, automotive, and semiconductor manufacturing.
The 3D IC technology involves stacking two or more layers of active electronic components vertically and horizontally on a single circuit. This document discusses the concept of integrated microchannel cooling for 3D ICs. It describes the fabrication process, theoretical analysis, experimental characterization, benefits, and challenges of this technology. Microchannel cooling allows for improved thermal resistance over air cooling methods. The 3D IC technology enables shorter interconnect lengths and reduced switching energy.
Design of Micro Cooling Channel for Plastic Injection Moulding by using Mold ...IRJET Journal
This document describes research on designing micro cooling channels for plastic injection molds to improve cooling efficiency and reduce cycle times. It discusses heat transfer modes during molding and calculating cooling requirements. Methods include creating conformal micro channels near the mold surface using 3D printing. Simulations using Moldflow Advisor analyze different channel designs, showing micro channels provide more uniform cooling over smaller areas. The results indicate micro channels can reduce non-uniformity compared to standard channels, decreasing cycle times for plastic parts.
HEAT TRANSFER ANALYSIS OF EFFECTS OF LONGITUDINAL FINS ON HEAT TRANSFER IN DO...IRJET Journal
This document analyzes heat transfer in a double pipe heat exchanger with and without longitudinal fins. It was found that using longitudinal fins improves heat transfer performance. Specifically:
1) Heat transfer rate and LMTD increased by 28.42 watts and 12.5 watts respectively with fins compared to without fins.
2) Effectiveness, which is a measure of heat exchanger performance, increased from 0.3211 without fins to 0.3533 with fins.
3) Overall heat transfer coefficient and rate of heat transfer were higher with fins, showing fins enhance heat transfer in double pipe heat exchangers.
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
Building Retrieval-Augmented Generation (RAG) systems with open-source and custom AI models is a complex task. This talk explores the challenges in productionizing RAG systems, including retrieval performance, response synthesis, and evaluation. We’ll discuss how to leverage open-source models like text embeddings, language models, and custom fine-tuned models to enhance RAG performance. Additionally, we’ll cover how BentoML can help orchestrate and scale these AI components efficiently, ensuring seamless deployment and management of RAG systems in the cloud.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
UiPath Test Automation using UiPath Test Suite series, part 6DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
HCL Notes and Domino License Cost Reduction in the World of DLAU
D Banerjee Abstract 2009c
1. Research: http://www1.mengr.tamu.edu/mpf/
NANO-DEVICES FOR ENHANCED COOLING, STORAGE AND SENSING
Debjyoti Banerjee, Ph.D.
Morris Foster Faculty Fellow (2007-2009) and Assistant Professor of Mechanical Engineering;
Faculty Fellow, Mary Kay O'Connor Process Safety Center;
ASEE Faculty Fellow, SPAWAR/ Office of Naval Research (ONR) 2009
Mail Stop 3123, Texas A&M University, College Station, TX 77843-3123.
Ph: (979) 845-4500, Fax: (979) 845-3081 Email: dbanerjee@tamu.edu
ABSTRACT:
Our research combines: (a) cooling and thermal storage technologies with (b) nano-technology.
In the thermal area – we are investigating micro-scale heat transfer phenomena in boiling.
Micron-scale features in boiling cause the formation of “cold spots”. These cold-spots are able to
transmit almost 60-90% of the total heat transfer. Using Carbon Nano-Tube coated surfaces cooling
was enhanced by 30-300%, probably due to enhancement of these cold spots in boiling. Using silicon
nano-fins - cooling was enhanced by 120%. The applications are in materials processing and thermal
management (cooling). We have also demonstrated cooling enhancement by ~8-30% using nanofluids.
We are currently exploring the use of nanofluids for solar thermal energy conversion.
DPN™ (Dip Pen Nanolithography) is a versatile technology that leverages microfluidic ink
delivery systems with Scanning Probe Microscopy. In earlier studies the DPN process was enhanced
through the development of commercial microfluidic devices called “Inkwells™”. We are currently
developing the next generation microfluidic devices for DPN (e.g., Fountain Pen Nanolithography).
The applications are in nano-catalysis, combinatorial nano-synthesis, bio-nanotechnology (e.g., cancer
nanotechnology), maskless-lithography and nano-sensors for homeland security, bio-security and
explosives detection (e.g., “nano-nose” and “nano-tongue”). We have invented a process for
synthesizing Carbon Nanotubes of a single chirality (either metallic or semi-conducting) using DPN.
Biography: Prior to Texas A&M University, Dr. Banerjee worked as a Manager of Advanced Research &
Technology (ART) group at Applied Biosystems Inc. ($2B annual revenue), CA, where he
managed a group of 10 engineers and scientists (6 Ph.D.). Previously in a singular capacity,
Dr. Banerjee developed from concept to a commercial product at NanoInk Inc. (called
“InkWells™). Inkwells are microfluidic platforms used for bio/nano-technology applications.
Dr. Banerjee has 2 issued patents, submitted 4 provisional patent applications, while working
at ABI, Ciphergen Biosystems, NanoInk and Coventor Inc. Dr. Banerjee received his Ph.D. in
Mechanical Engineering from UCLA (with minor in MEMS) and received the “2001 Best
Journal Paper Award” from the ASME Heat Transfer Division (HTD). He received 3 M.S.
degrees and was invited to 4 national honor societies. He attended the Indian Institute of Technology (IIT),
Kharagpur for his Bachelor of Technology (Honors). At the graduation convocation at IIT he received the
“Amlan Sen Best Mechanical Engineering Student Award (Endowment)”. He also received the “Jagdish Bose
National Science Talent Scholar” award from the Government of India. Dr. Banerjee received the “New
Investigator Award (2005)” from the Texas Space Grants Consortium (TSGC), the “ASEE/AFOSR Summer
Faculty Fellowship (2006, 2007)” at AFRL, the “ASEE/ONR Summer Faculty Felloship” at SPAWAR, “Morris
Foster Fellowship (2007-2008)” from Mechanical Engineering Department at Texas A&M University and was
designated as a Faculty Fellow at the Mary Kay O’Connor Process Safety Center at the Texas A&M University.
He received the “3M Corporation Non-Tenured Faculty Fellowship (2009-2012). Dr. Banerjee’s research
interests are in thermo-fluidics (boiling, nanofluids), solar thermal energy, MEMS/ microfluidics and
nanotechnology (DPN, nano-synthesis and bulk synthesis of CNT and graphenes).
Research Sponsors/ Collaborators: NSF, DARPA, SPAWAR, US Air Force (AFRL, AFOSR), Navy (ONR), Army
(ARO), Texas Space Grants Consortium (TSGC), NASA (URETI/TiiMS), Nano-MEMS Research, DOE, Qatar National
Research Foundation (QNRF), Lynntech, Aspen Thermal System, Irvine Sensors, Anteon Corp (General Dynamics),
General Electric – Corporate Research & Development (GE-CRD), 3M Corp.
Page 1 of 6 Ph: (979) 845-4500, Fax: (979) 845-3081 Email: dbanerjee@tamu.edu 03/13/2009
2. BOILING ON NANO-STRUCTURED SURFACES
30 - 300% Enhancement in Cooling
18
Bare Silicon Saturation Bare Silicon 5 ºC Subcooled
Type‐A Saturation Type‐A 5 ºC Subcooled
16 Type‐B Saturation Type‐B 5 ºC Subcooled
14
Height of CNT
Averaged Heat Flux (W/cm )
2
12 Type A: 9 microns
Type B: 25 microns
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90
Wall Superheat (ºC)
Figure 1. Boiling on Carbon Nanotube (CNT) coated silicon wafer for PF5060
refrigerant. The results show a 30-300% enhancement in heat transfer. Experiments
were performed in the research group of PI. (ASME J. Heat Transfer, 2006; 2008).
120% Enhancement in Cooling
Nucleate Boiling Curve for qn" (W/cm2)
30
ΔTSub = 0 C
o
25
Heat flux (W/cm )
2
20
15
10
5
0
2 4 6 8 10 12 14
Wall Superheat (oC)
100 nm Run1 100 nm Run2 336 nm Run1 336 nm Run2
259 nm Run1 259 nm Run2 Bare
Figure 2. Boiling on Silicon Nanofins. Pool boiling heat flux was enhanced by ~120% on
heaters with silicon nano-fins (SEM of nanofins shown in inset). Silicon nano-fin geometry:
~100 nm height, ~200 nm diameter, .~800 nm pitch (ASME-IMECE 2007).
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3. TEMPERATURE MICRO/NANO-SENSORS FOR BOILING MEASUREMENTS
(a) (b) (c)
Figure 3. SEM images of (a, b) Thin Film Thermocouples (TFT), integrated with
(c) Carbon Nanotubes (CNT): The CNT structures are 9-25 microns in height and 8-16
nm diameters. The integrated device was used to study transport mechanisms in pool
boiling. Heat transfer enhancement of ~30-300% was achieved. (J. Heat Transfer, ’06)
Thermocouple Junction Chromel Alumel Figure 4. Temperature Micro-sensors:
Thin Film Thermocouples (TFT)
(a) Mask Layout, and (b) Fabrication
(using photolithography, physical vapor
deposition, and lift-off process) on
silicon and pyrex wafers. K-Type was
chosen for their sensitivity and broad
linearity. The Chromel and Alumel layers
are ~200nm thick, ~ 30microns wide and
the junctions are on 200 microns pitch.
Bond Pads (a) Bond Pads (b) (J. Components & Packaging Tech., ‘06)
8
7
6
COLD SPOT
5
Power
4
3
2
1
Cold Spot 0
0 5 10 15 20 25 30
Frequency [Hz]
(a) (b)
Figure 5. Cold Spot: (a) Simulation results showing “cold spot” dynamics in boiling of water
on a steel heater. This received the “Best Journal Paper Award” from the ASME Heat
Transfer Division. The animation movies can be downloaded from PI’s research website.
Wire frame depicts vapor bubble. Heat Flux = 1.68 W/cm2. (Banerjee and Dhir, ASME-IMECE
’96; J. Heat Tr. ’02). Color Code: Red: High, Blue: Low temperature.
(b) Fast Fourier Transform (FFT) of temperature fluctuations recorded from pool boiling
experiments using surface micro-machined temperature micro-sensors (thin film
thermocouples). The FFT data shows frequency peaks in temperature in the 10-15 Hz range
– showing the existence of “cold spots”. (AIAA Paper No. 06-5586).
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4. NANOFLUIDS FOR ENHACNED COOLING & MOLECULAR DYNAMICS
220
Heat Flux vs Flowrate (400W)
215
210
Heat Flux (W/m2)
205
200
195
190
Nano (0.6%)
Nano (0.3%)
185
PAO
180
0 0.2 0.4 0.6 0.8 1 1.2 1.4
Flowrate (gpm)
(a) (b)
Figure 6. Nanofluids in Fin Cooler (a) Experimental apparatus showing the gap fin cooler.
(b) Heat flux enhanced by upto 10% for nanofluids using exfoliated graphite particles in Poly
Alpha Olefin oil (PAO) for concentrations of 0.6% and 0.3%. Inset: SEM of the precipitated
nano-particles from the nanolfuid on to the heater surface leading to “nano-fin” effect which
causes enhancement in heat flux (AIAA J. Thermophysics, 2008).
200
Reservoir 200 W Input
150
Heat Rejection (W)
Liquid-Liquid
Finned Heater Compact Heat
Exchanger
100
Hot Loop (Oil) Cool Loop
(Water)
50 Nanofluid
PAO
0
Flowmeter Magnetic Gear 0 0.25 0.5 0.75 1 1.25 1.5 1.75
Pump Flowrate (gpm)
Figure 7. Nanofluids in Compact Heat Exchangers. (a) Compact heat exchanger
apparatus. (b) Heat flux enhanced by 30% for nanofluids using Carbon Nanotube (CNT) in
Poly Alpha Olefin oil (PAO) for concentrations of 0.6%. Inset: Inset: SEM of the precipitated
nano-particles from the nanolfuid on to the heater surface leading to “nano-fin” effect which
causes enhancement in heat flux. (AIAA J. Thermophysics, 2008, in preparation)
4
SWNT & Water Figure 8. Molecular Dynamics simulation of
SWNT & Water + CuO
nanofins and nanofluids. (Inset) Unit cell with
3
water and CuO nanoparticles in contact with
Rk x10 -8 m2K/W
nanofin. Interfacial resistance (Kapitza
2 resistance) for water and CuO nanofluid changes
in contact with the nanofluid. (Int. J. of Thermal
1 Sciences, 2009)
0
400 600 800 1000 1200
Nanotube Temperature (K)
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5. MICROFLUIDICS FOR BIO/NANO-LITHOGRAPHY
(a) (b)
(c) (d) (e)
Figure 9. Inkwells™: Microfluidic ink delivery apparatus for Dip Pen Nanolithography of 4-10
inks. (a) Inkwell for nano-bio lithography applications in genomics. (b), (c): Inkwell for nano-
bio lithography applications in proteomics. (b), (c), (d) Scanning probes in registry with
microwells for “ink-loading” step in DPN. (e) Computational results for meniscus bifurcation
studies in capillary driven microfluidics. (SPIE J. of Micro/Nano-Fabrication, “MF3”, 2006).
(a)
(b) (c)
Figure 10. Centiwells: Microfluidic apparatus for simultaneous nano-patterning of ~100
species by Dip Pen Nanolithography (DPN). (a) SEM image of Centiwells containing
polystyrene micro-beads. (b) Scanning probe on an Atomic Force Microscope dipped in PEG
solution in the micro-wells. (c) LFM image of fractal nano-patterns formed by DPN of PEG.
(SPIE J. of Micro/Nano-Fabrication, “MF3”, 2007).
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6. NANO-SENSORS FOR EXPLOSIVES DETECTION (HOMELAND SECURITY)
Laser Explosives Micro-Heater (Gold)
Source Sensor
Reaction
Surface (Gold)
Laser Ray
Activated
Silicon Micro-Cantilever
Base (Silicon Nitride)
Detector
Sensor System
Explosives Sensor (Nano-Calorimeter)
(a) (b)
Figure 11. (a) Schematic of explosive sensor using nano-calorimetry. (b) Micro-heaters
maintain cantilevers at the ignition temperatures of the explosives to be detected.
In presence of an explosive the micro-cantilever at the corresponding ignition
temperature is activated. Multiple cantilevers can be maintained at same temperature for
eliminating false positives. Each micro-cantilever can be maintained at a specific temperature
or scanned over a range of temperatures for detecting multiple explosives. Nominal
dimensions Micro-cantilever: 150 × 25 microns, 100nm thick, Pitch: 30 microns; Micro
Heaters: 25 × 22 microns, 100 nm thick, gold; Reaction surface: 10nm, gold.
Explosives Sensor
Sensor Response (Summary)
250 500
Vapor Pressure (mm of Hg)
Ignition Temperature (C)
200 Gasoline 400
V a p o r P re s s u re ( m m o f H g )
Ig n it io n T e m p e ra t u re ( C )
Acetone
150 300
100 200
50 100
Iso-Propyl Alcohol
0 0
5 15 19
Micro-Heaters Sensor Threshold Current (mA)
(a) (b)
Figure 12. (a) Heated micro-cantilever array for explosives detection (by nano-calorimetry).
Experimental results showing unique sensor response (signatures) under ambient conditions
for several explosives: gasoline, acetone, alcohol. (Defense & Security Symp.’06, SPIE 6223-24).
Page 6 of 6 Ph: (979) 845-4500, Fax: (979) 845-3081 Email: dbanerjee@tamu.edu 03/13/2009