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260 articles for “chip-off”
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Experimental Demonstration on Fabrication Techniques and Recording of Leakage-free Surface-Driven Capillary Flow in the Dual Sudden Expansion Microchannels
Abstract: Dual sudden expansion polymethylmethacrylate (PMMA) microchannels have been fabricated by the maskless lithography, hot embossing lithography, direct bonding technique, and atmospheric pressure air dielectric barrier discharge (DBD) plasma processing. The surface-driven capillary flow of dyed water is faster on the processed PMMA surface than the pristine PMMA surface. The surface-driven capillary flow of dyed water is slower in the wider portion of any dual sudden expansion microchannel. This experimental demonstration …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 2, 2017 · pp. 5–9 Read article
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Review on Theoretical Background, Fabrication Techniques, Methodologies and Applications of Microfluidic Devices and Nanofluidic Devices
Abstract: In recent past, microfluidics is an outstanding and inspiring research field due to the potential applications of microfluidic devices. Microfluidic laboratory-on-a-chip systems are successfully used in mechanical engineering and biomedical engineering due to low price and easy fabrication methods. The major fabrication methods of the microfluidic devices are imprinting, hot embossing, injection molding, soft lithography, laser photo ablation, X-ray lithography and sealing. Active capillary flow and passive capillary flow are …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 5, Issue 3, 2015 · pp. 19–34 Read article
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Experimental Studies on the Capillary Flow Phenomena in polyimide based Glass Microfluidic Devices
Abstract: The polyimide based glass microfluidic devices are fabricated using the maskless lithography. Water is the only working liquid in this work. The effects of micropillar side length, microfluidic friction and surface area to volume ratio on the surface-driven capillary flow of water are studied experimentally. The surface-driven capillary flow of water is slower due to higher microfluidic friction. This work will be useful to control the water inside the microfluidic …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 7, Issue 1, 2017 · pp. 8–11 Read article
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Experimental Recording of the SU-8 Micropillars by Scanning Electron Microscope
Abstract: SU-8 micropillars are designed in the laboratory computer. The designed SU-8 micropillars are fabricated by the maskless lithography using standard SU-8 processing methods. The range in side length of square SU-8 micropillars is 100 micron to 350 micron. The range in diameter of circular SU-8 micropillars is 100 micron to 350 micron. The SEM images of these fabricated SU-8 micropillars are captured by different tilt angles to characterise these micropillars. …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 7, Issue 1, 2017 · pp. 29–32 Read article
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The Prevalence of Acne and Its Association with Related Factors
Abstract: The skin mirrors the general condition of the individual. Acne forms as a result of obstruction and inflammation of hair follicles and their accompanying sebaceous glands. The present study was undertaken to assess the prevalence of acne and its association with related factors among B.Sc. Nursing students of National Institute of Nursing Education (NINE), PGIMER, Chandigarh in March 2012. A descriptive research design was used with total enumeration sampling technique. …
Published in Journal of Nursing Science & Practice · Vol. 3, Issue 3, 2013 · pp. 31–35 Read article
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Roles and Responsibilities of Verification Language, Verification Methodology and Verification Tool for Design Verification of a DUT
Abstract: Verification of a design is as important as the design itself to make it work in a practical scenario. Verification phase is an important phase in System on Chip (SoC) design cycle and used to take 70% to 80% of the total design time. A verification environment may be prepared simply using a Hardware Verification Language (HVL) only without using any methodology or using a HVL with verification methodology. The …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 114–121 Read article
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Implementation of Sub Parts of SAR ADC
Abstract: This paper describes the implementation of different sub parts of SAR ADC using a 180 nm CMOS technology in Mentor Graphics Tool. There are mainly four blocks in the SAR ADC. They are sample and hold, dynamic latch comparator, SAR logic and DAC logic. The simulation results show the transient analysis waveforms of different blocks of SAR ADC. Here to reduce power consumption dynamic latch comparator is used. Here the …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 139–147 Read article
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Ternary Logic Design Approach - From CMOS to CNTFET
Abstract: The goal of this review is to offer a broad study on the ternary logic designs based on CMOS (complementary metal-oxide-semiconductor) and CNTFET (carbon nanotube field effect transistor) suitable for energy efficient and high-performance VLSI design. Performance investigation of the ternary logic-based designs will be the primary emphasis as the ternary logic is a good substitute for the conventional binary logic among all the multiple-valued logics because it permits simple …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 2, 2018 · pp. 20–30 Read article
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Microfluidic Flow of Aqueous Ethanol and Aqueous Isopropyl Alcohol in the SU-8 based Microchannel Bends
Abstract: In this work, a total of 8 individual SU-8 based microchannel bends as microfluidic devices are fabricated by the maskless lithography and indirect bonding technique according to the performed designs. Dyed aqueous ethanol (50% dyed water, 50% ethanol) and dyed aqueous isopropyl alcohol (50% dyed water, 50% isopropyl alcohol) are prepared and used as working liquids to test the fabricated microfluidic devices. A suitable CMOS camera is used to record …
Published in Journal of Aerospace Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 23–26 Read article
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Development of an Energy Free Refrigerator Using LPG as Refrigerant
Abstract: Supply of constant power is as yet not accessible in a few zones of the nation and the residential refrigerator devouring greater power. In this paper, a minimal effort cooler is created utilizing LPG as refrigerant. LPG is put away in barrel at high weight. As this pressurized LPG is gone through the slim container of little inner distance across, the weight of LPG is diminished because of development and …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 2, 2019 · pp. 22–26 Read article
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A Brief Introduction on the Electrokinetic Mixing and Separation in Microfluidic Systems
Abstract: Electrokinetics encompasses the analysis of fluid or particle motion in the electrical field; includes electroosmosis, electrophoresis, dielectrophoresis, electro-wetting, etc. Electrokinetic applications in the production of microfluidic systems have become quite attractive over the last decade. Electro-kinetic systems usually do not need any additional mechanical moving parts and may be made compact by removing the power source with a small battery. Electro-kinetic based microfluidic systems may also serve as a feasible …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 24–34 Read article
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Short Review on Anti-adhesion Coating in Microfluidics for Applications in Biotechnology
Abstract: In this short review, the use of diamond-like carbon (DLC) as anti-adhesion coating in microfluidics is described. The anti-adhesion coating is required on SU-8 based silicon stamp surface to fabricate the polymethylmethacrylate (PMMA) based microfluidic devices using maskless lithography, hot embossing lithography and direct bonding technique. Also, the DLC coating is required on PMMA microchannel surface to change the surface-driven capillary flow of water in PMMA microfluidic devices. The static …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 11, Issue 1, 2021 · pp. 1–3 Read article
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Microfluidic Features in Fluid Mechanics for Bioengineering Applications
Abstract: In this work, a single SU-8 based glass microfluidic device is fabricated by the mask less lithography and indirect bonding technique. The sealing is performed by author during the hard baking in maskless lithography. Dyed water is prepared as working liquid in this work. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used by the author to record the surface-driven capillary …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 11, Issue 3, 2021 · pp. 1–4 Read article
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Passive Capillary Flow of Aqueous Microparticle Suspensions in the Straight Microchannels fabricated by the Negative Photoresist SU-8
Abstract: A group of microfluidic devices are fabricated by the SU-8 negative photoresist using the standard SU-8 processing techniques. The influences of effective viscosity, channel aspect ratio and surface wettability on the surface-driven capillary flow of aqueous microparticle suspensions are individually studied in straight microchannels. Nano-films of diamond like carbon (DLC) are used to vary the surface wettability on SU-8 based microchannel structures. The number densities of suspended polystyrene microparticles in …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 3, 2017 · pp. 37–39 Read article
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Evaluation of False Yam (Icacina oliviformis) Seed Extract as Substitute for Antibiotics on Growth Performance and Carcass Characteristics of Broiler Chickens
Abstract: An experiment was carried out using broiler chickens to determine the effects of false yam seed extract on their growth performance. One hundred and fifty (150) chicks (Cobb strain) were selected and randomly divided into 15 groups of 10 birds each. Fresh false yam seed chips were soaked for 3 days (1 part of fresh seed to 2 parts of water) and extract was decanted and sieved through a fine …
Published in Research & Reviews : Journal of Herbal Science · Vol. 6, Issue 3, 2017 · pp. 4–8 Read article
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Demonstration and Evaluation of Processing Method to Improve Nutritional Quality of Cassava (Manihotesculenta C.) Based Foods in SNNPR
Abstract: Among the most typical food sources is cassava of qulle variety by applying drying, boiling and soaking processing methods to decrease level of hydrogen cyanide factors using completely randomized design. The demonstration of processing methods and sensory evaluation bread was at Alibazer, Edegegn, Cheha, yem s/woreda district during 2020–2021. The lowest hydrogen cyanide content which meets recommendation of IITA not above 2–3 mg/100g was obtained with processed (soaked then sun …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 11, Issue 2, 2022 · pp. 34–38 Read article
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Microfluidic Flow of Dyed Water in the SU-8 based Glass Devices
Abstract: Two individual SU-8 based glass microfluidic devices are fabricated by the maskless lithography and indirect bonding technique. Dyed water is used as working liquid to record the surface-driven capillary flow in each microfluidic device. In the indirect bonding technique, polymethylmethacrylate (PMMA) dissolved in EC solvent is used as the adhesive material to fabricate the leakage-free microfluidic device. CMOS camera is used as the recording tool in this work. This work …
Published in Research & Reviews : Journal of Physics · Vol. 6, Issue 3, 2017 · pp. 14–17 Read article
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Designing Mithun Specific Probes Towards Development of Microarray for Mithun (Bos frontalis)
Abstract: cDNA microarrays are powerful tools to analyze the expression pattern of thousands of genes simultaneously in response to treatments, during tissue differentiation or related to differences in traits. To get accurate results, the probes used in the microarray are to be specific to the species for which the array is being conducted. Non-availability of suitable microarray specific to mithun (Bos frontalis), a rare ruminant of Southeast Asia, limits its use …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 4, Issue 3, 2015 · pp. 1–7 Read article
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An Approach to Simplify Universal Logic Gates Using Majority Function
Abstract: There has always been a continuous urge to reduce power consumption in very large scale integration (VLSI) circuit design. Sometimes reduction in the total number of transistors in a fundamental logic gate helps to enhance power saving. But, there stands a tradeoff in between power, delay and size of the chip. Static and dynamic power gets escalated as the device dimension is scaled down and vice versa. In our approach, …
Published in Research & Reviews : Journal of Physics · Vol. 12, Issue 3, 2023 · pp. 28–41 Read article
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Intrapocket Drug Delivery System: A Spatial Tool for Periodontitis
Abstract: Periodontitis is a disease attributable to multiple infectious agents. It results from extension of the inflammatory process initiated in the gingiva to the supporting periodontal tissues. Periodontal pockets provide natural reservoir bathed by gingival crevicular fluid that is easily accessible for the insertion of a delivery device. Intra-pocket, sustained release systems have emerged as a novel paradigm for the future research. Controlled release delivery of antimicrobials is a therapeutic intervention …
Published in Trends in Drug Delivery · Vol. 1, Issue 2, 2014 · pp. 24–29 Read article