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Razib Chandra sutrader presents on Azoic dye. Azoic dye, also known as Napthol, Magic and Ice color, contains an azo group (N=N) and is produced by reacting a Diazocomponent and coupling component (Napthol). It dyes cotton fabric and has good wash and light fastness though poor rubbing fastness. Dyeing cotton with Azoic dye involves a three step process of Naptholation, Diazotization, and coupling.
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Azoic dyes (2)
The document discusses the application of azoic dyes to cotton. Azoic dyes are produced by reacting a coupling compound, like naphthol, with a di-azo compound or diazo base. This reaction produces an insoluble colored substance that provides excellent washing fastness. The process involves first treating the naphthol to make it water soluble, then diazotizing the base compound and coupling it with the naphthol compound in the fabric to produce the color within the cotton fibers.
KHAN MD DINISLAM
Azo dyes contain an azo group (-N=N-) that bonds aromatic compounds. They are mainly red, brown, or yellow. The process involves first treating fiber with a napthol component, then a diazotized base component to form the insoluble dye within the fiber. This makes azo dyes very fast to washing. They have excellent lightfastness but poor rubfastness initially until treated with soap. Common diazo components provide different shades from orange to blue. Azo dyes have good colorfastness and washfastness.
Azo dyes
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl. They are a commercially important family of azo compounds, i.e. compounds containing the linkage C-N=N-C. Azo dyes are widely used to treat textiles, leather articles, and some foods.
Azoicdyes ppt~1
The impregnated material is treated in a bath containing diazonium solution to carry out coupling and thus color is produced inside the fabric.
Azoic Dye (Full PDF)
Azoic dyes are produced by reacting a diazo-component or base salt with a coupling component like naphthol. This reaction forms an insoluble azo group that produces the dye within the fiber, resulting in excellent washing fastness. Azoic dyes can be used to dye cellulose fibers like cotton. The dyeing process involves three steps: naphtholation, diazotization, and coupling. Azoic dyes form an insoluble color product within the fabric, making them different from azo dyes which use a soluble azo group.
Sulfur dye Presentation
This document provides information about sulfur dyeing. It discusses that sulfur dyes are inexpensive reaction mixtures that are chemically reduced prior to application and reoxidized after dyeing cotton or cellulose fibers. It also describes the two-stage dyeing process where the insoluble sulfur dye is converted to a water-soluble leuco form using sodium sulfide, which is absorbed by the fibers during dyeing and then reoxidized. The document provides details on the dyeing process and recipes used for cotton fabrics as well as some common faults and their remedies. It discusses the advantages of sulfur dyes being inexpensive while providing deep shades with good fastness properties.
Azo dyes
This document discusses different types of azo dyes. It begins by defining azo dyes as dyes containing an azo (-N=N) group. Azo dyes are then classified into mono azo, bis azo, tris azo and poly azo dyes depending on the number of azo groups. Mono azo dyes containing one azo group are further classified based on their application. Bis azo dyes containing two azo groups are discussed and classified into four types based on their chemical structure. Examples of different types of azo dyes are provided along with brief descriptions of their synthesis.
sulphur dyes
Sulphur dyes contain disulfide linkages and are used to produce black, brown, and other dark shades on cellulosic materials like cotton. They are water-insoluble so must be converted to a water-soluble leuco form using a reducing agent before application. After dyeing, an oxidizing agent turns the dye back to its insoluble form within the fiber. Issues like poor fastness, bronzing, and material tendering can occur but have corrective actions like ensuring complete dissolution and reaction of the dye and proper washing after dyeing.
Recommended
Azoic dyes (2)
The document discusses the application of azoic dyes to cotton. Azoic dyes are produced by reacting a coupling compound, like naphthol, with a di-azo compound or diazo base. This reaction produces an insoluble colored substance that provides excellent washing fastness. The process involves first treating the naphthol to make it water soluble, then diazotizing the base compound and coupling it with the naphthol compound in the fabric to produce the color within the cotton fibers.
KHAN MD DINISLAM
Azo dyes contain an azo group (-N=N-) that bonds aromatic compounds. They are mainly red, brown, or yellow. The process involves first treating fiber with a napthol component, then a diazotized base component to form the insoluble dye within the fiber. This makes azo dyes very fast to washing. They have excellent lightfastness but poor rubfastness initially until treated with soap. Common diazo components provide different shades from orange to blue. Azo dyes have good colorfastness and washfastness.
Azo dyes
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl. They are a commercially important family of azo compounds, i.e. compounds containing the linkage C-N=N-C. Azo dyes are widely used to treat textiles, leather articles, and some foods.
Azoicdyes ppt~1
The impregnated material is treated in a bath containing diazonium solution to carry out coupling and thus color is produced inside the fabric.
Azoic Dye (Full PDF)
Azoic dyes are produced by reacting a diazo-component or base salt with a coupling component like naphthol. This reaction forms an insoluble azo group that produces the dye within the fiber, resulting in excellent washing fastness. Azoic dyes can be used to dye cellulose fibers like cotton. The dyeing process involves three steps: naphtholation, diazotization, and coupling. Azoic dyes form an insoluble color product within the fabric, making them different from azo dyes which use a soluble azo group.
Sulfur dye Presentation
This document provides information about sulfur dyeing. It discusses that sulfur dyes are inexpensive reaction mixtures that are chemically reduced prior to application and reoxidized after dyeing cotton or cellulose fibers. It also describes the two-stage dyeing process where the insoluble sulfur dye is converted to a water-soluble leuco form using sodium sulfide, which is absorbed by the fibers during dyeing and then reoxidized. The document provides details on the dyeing process and recipes used for cotton fabrics as well as some common faults and their remedies. It discusses the advantages of sulfur dyes being inexpensive while providing deep shades with good fastness properties.
Azo dyes
This document discusses different types of azo dyes. It begins by defining azo dyes as dyes containing an azo (-N=N) group. Azo dyes are then classified into mono azo, bis azo, tris azo and poly azo dyes depending on the number of azo groups. Mono azo dyes containing one azo group are further classified based on their application. Bis azo dyes containing two azo groups are discussed and classified into four types based on their chemical structure. Examples of different types of azo dyes are provided along with brief descriptions of their synthesis.
sulphur dyes
Sulphur dyes contain disulfide linkages and are used to produce black, brown, and other dark shades on cellulosic materials like cotton. They are water-insoluble so must be converted to a water-soluble leuco form using a reducing agent before application. After dyeing, an oxidizing agent turns the dye back to its insoluble form within the fiber. Issues like poor fastness, bronzing, and material tendering can occur but have corrective actions like ensuring complete dissolution and reaction of the dye and proper washing after dyeing.
Vat+dyes
This document discusses vat dyes, which are insoluble in water but can be solubilized by reduction into leuco compounds. It defines vat dyes and describes their general characteristics, including that they are applied to fabric in a reduced, soluble form and reoxidize upon exposure to air. The document also classifies vat dyes and outlines the steps of vat dyeing techniques, including vatting, oxidation, and after-treatment. It provides examples of indigo and anthraquinone vat dyes and how their chemical structures relate to solubility.
Basic dyes
Basic dyes are water-soluble cationic dyes that contain amino groups and produce bright shades on textiles like wool, silk, and acrylic. They have an unlimited shade range, are soluble in water, have good wet fastness properties but poor light fastness. Basic dyes are commonly used for dyeing wool, silk, acrylic and paper and show good brightness and tinctorial value though have limitations of poor shade stability and lightfastness.
Vat Dyes
Vat dyes are water-insoluble dyes that can be converted to a water-soluble form through chemical reduction. They were first developed in the 1850s as synthetic dyes and include indigo dye. The vat dyeing process involves three steps - vatting to convert the dye to its soluble leuco form, oxidation to convert it back to insoluble form in the fiber, and after treatment. Vat dyes have high color fastness but more limited shades than other dyes and their application process is complex and time-consuming.
Dyes classification
This document discusses different types of dyes used for textiles, including their properties and applications. It covers dye classification, with direct dyes being used mainly for cellulosic fibers. Azoic dyes have a limited color range but produce bright shades and good wet fastness. Vat dyes are more expensive to apply but provide good all-round fastness, especially for cotton goods. The document also examines specific dyes like direct dyes, azoic dyes, and vat dyes in more detail.
Sulphur dyes
Sulphur dyes are non-ionic dyes that contain sulphur linkages, are water insoluble, and produce reasonably cheap and light/wash fast shades. They are applied to cellulosic fabrics in a reduced, anionic state and oxidized after dyeing to reform the non-ionic structure and attach the dye physically to the fabric through aggregation. Sulphur dyes are classified based on their chemical structure and application, and are commonly used in powder, grain, dispersed powder, and paste forms. They are mainly used for cotton, hemp, and viscose to produce bright and brown shades through an exhaust dyeing process using reducing agents like sodium sulphide.
Azo dye presentation
Azo dyes are formed by coupling reactions between colorless components called napthols and bases. The coupling reaction occurs on the fiber to produce an insoluble colored compound with good fastness. Azo dyes are applied by first treating cotton with a napthol solution, then developing the dye by treating with an acidic diazonium salt solution of the base. This produces the colored azo group. A final soaping step improves the rubbing fastness. Azo dyes have good light and washing fastness but poor rubbing fastness without soaping.
Vat Dye (Full PDF) | Vat Dye
Vat dyes are insoluble natural or synthetic dyes that are converted to their soluble leuco form using a reducing agent like sodium hydrosulfite. This allows the dye to penetrate cellulose fibers during the dyeing process. After penetration, the fabric is oxidized, converting the dye back to its insoluble form within the fibers. Key steps are vatting to solubilize the dye, dyeing to allow penetration, and oxidation to fix the dye in the fibers. Vat dyes provide excellent washing fastness due to being locked inside the fibers. However, they are more difficult and costly to apply than other dyes.
Azo dyes
This document discusses different types of azo dyes. Azo dyes contain an azo group (-N=N-) in their chemical structure. They are classified based on the number of azo groups, including mono azo, bis azo, tris azo and tetra azo dyes. Mono azo dyes contain one azo group and are further divided into classes like solvent, pigment, mordant, basic, disperse and reactive dyes. Bis azo dyes contain two azo groups and are classified into types based on their chemical structure and method of preparation, such as AZA', AM E, D E' and AZ x Z' A'. Examples of different azo
Basic Dye (Full PDF) | Basic Dye
Basic dyes are cationic dyes that ionize in solution, giving their colored components a positive charge. They are used for dyeing wool, silk, and acrylic fibers. Basic dyes are soluble in water when mixed with acids like acetic acid. They have high tinctorial strength and unlimited color ranges but poor lightfastness and washfastness. Modified basic dyes have improved properties like better fiber coverage, substantivity, and lightfastness compared to traditional basic dyes.
Common Problems & Corrective Action in Azoic Dyeing
This document provides an assignment on explaining common problems and corrective actions in azoic dyeing. It begins with an introduction to azoic dyes and their properties. It then discusses 12 common problems that can occur in azoic dyeing such as uneven shade, naphthol migration, slow coupling reaction, and causes and corrective actions for each. The assignment was submitted by a student for a course on textile coloration.
Reactive dyes
Reactive dyes are organic dyes that form covalent bonds with cellulose fibers. They were first commercially produced in 1956 and have advantages like excellent color fastness and ease of washing. Reactive dyes contain three parts - a chromophore for color, a reactive group that bonds to fibers, and a bridging group connecting these. Dyeing involves exhaustion of dye onto fibers, fixation through alkaline conditions forming covalent bonds, and washing unfixed dye away. Reactive dyeing gives very colorfast results due to the strong covalent bonds formed.
Acid dyes
Introduction,Properties of Acid dyes, Pre treatment,Dissolving the dye stuff, Dyeing and Applications
Sulphur dye
This document discusses the properties, mechanisms, classification, and application of sulphur dyes. Sulphur dyes contain sulphur linkages, are insoluble in water but soluble in sodium sulphide. During dyeing, sodium sulphide converts the dye to soluble thiols which penetrate the fiber and are oxidized back to the insoluble dye. Sulphur dyes are classified as sulphur, leuco sulphur, or solubilized. Dyeing involves preparing a dye bath and dyeing cotton at a boil. Aftertreatment can improve fastness. Disadvantages include bronzing shades and tendering of sulphur black dyed goods over time.
Dye classification and dying process
This document discusses the classification and properties of various dye classes. It states that different dye classes are only applicable to certain fibre types, and describes the main dye classes for cellulosic fibres (direct, azoic, reactive, vat, sulphur dyes), protein fibres (acid, metal-complex, chrome dyes), other fibres like polyester and acrylic (disperse, cationic dyes). Each dye class is defined in terms of its application method, colour range, fastness properties and main applications. Examples of individual dyes within each class are also provided.
Reactive dyes
Reactive dyes readily dissolve in water and form covalent bonds with cellulose fibers, providing good washing fastness. They are classified based on their reactivity - alkaline controllable dyes require gradual alkali addition, salt controllable dyes require portion-wise salt addition, and temperature controllable dyes react above boiling temperatures. Bifunctional reactive dyes contain two reactive groups, allowing for high exhaustion and fixation during dyeing of cotton which involves dyeing with salt, forming covalent bonds with alkali, and post-treatment processes like soaping and washing.
Conditions & Effects Of Disperse Dyeing
This document summarizes the effect of various conditions on disperse dyeing. It discusses that disperse dyes are organic compounds that can color hydrophobic fibers from aqueous dispersion without ionizing groups. It then classifies the main types of disperse dyes and describes the effects of temperature, pH, and time on the dyeing process. Maintaining the optimal temperature, acidic pH between 4.5-5.5, and sufficient time are important to ensure good color yield, fastness, and strength of the dyed fabric.
Acid Dye (Full PDF)
This document discusses acid dyes, which are water-soluble dyes used on protein fibers like silk, wool, and nylon. Acid dyes are classified based on their leveling characteristics during dyeing and their fastness properties. They contain aromatic molecules with sulphonyl or amino groups that make them soluble in water. Acid dyes are applied in acidic dye baths and bond to fibers through hydrogen bonding and ionic linkages. Their fastness properties range from poor to excellent depending on the dye's structure and how it is applied.
Effect of Various Conditions on Disperse Dyeing
The document discusses the effect of various conditions on disperse dyeing. It explains that temperature, pH, and time all play important roles. For dyeing with disperse dyes, a temperature above 100°C is needed for fiber swelling. The dye bath pH should be between 4.5-5.5 for satisfactory dye exhaustion. Time is also crucial - if not maintained properly, it can result in poor color fastness and an unacceptable dyeing outcome. Maintaining the appropriate conditions is essential for effective disperse dyeing.
Azo dye
Azo dyes are formed by the chemical reaction of two colorless components - napthols and bases (also called coupling and diazotization components). The dyeing process involves first treating the fabric with a napthol solution, then developing the dye by exposing the naptholated fabric to the diazotized base solution. This results in an insoluble azo compound that provides good light and washing fastness but poorer rubbing fastness. Rubbing fastness can be improved through a soaping treatment after dyeing. Azo dyes have excellent properties but require a multi-step process compared to ready-made dyes.
Ink analysis
This document discusses different types of inks used throughout history, including their compositions and uses. It describes logwood inks made from extracts of the Haematoxylon campeche tree mixed with sodium carbonate and potassium chromate that produce a purplish black color. Fountain pen inks are water-based but contain additives for color, flow and characteristics. Ballpoint pen ink consists of synthetic dyes in glycol or benzyl alcohol solvents with additives like fatty acids and resins. Forensic analysis methods for inks include thin layer chromatography, high pressure liquid chromatography, ultraviolet light examination, and digital image processing to determine the number and types of inks in a document.
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Vat+dyes
This document discusses vat dyes, which are insoluble in water but can be solubilized by reduction into leuco compounds. It defines vat dyes and describes their general characteristics, including that they are applied to fabric in a reduced, soluble form and reoxidize upon exposure to air. The document also classifies vat dyes and outlines the steps of vat dyeing techniques, including vatting, oxidation, and after-treatment. It provides examples of indigo and anthraquinone vat dyes and how their chemical structures relate to solubility.
Basic dyes
Basic dyes are water-soluble cationic dyes that contain amino groups and produce bright shades on textiles like wool, silk, and acrylic. They have an unlimited shade range, are soluble in water, have good wet fastness properties but poor light fastness. Basic dyes are commonly used for dyeing wool, silk, acrylic and paper and show good brightness and tinctorial value though have limitations of poor shade stability and lightfastness.
Vat Dyes
Vat dyes are water-insoluble dyes that can be converted to a water-soluble form through chemical reduction. They were first developed in the 1850s as synthetic dyes and include indigo dye. The vat dyeing process involves three steps - vatting to convert the dye to its soluble leuco form, oxidation to convert it back to insoluble form in the fiber, and after treatment. Vat dyes have high color fastness but more limited shades than other dyes and their application process is complex and time-consuming.
Dyes classification
This document discusses different types of dyes used for textiles, including their properties and applications. It covers dye classification, with direct dyes being used mainly for cellulosic fibers. Azoic dyes have a limited color range but produce bright shades and good wet fastness. Vat dyes are more expensive to apply but provide good all-round fastness, especially for cotton goods. The document also examines specific dyes like direct dyes, azoic dyes, and vat dyes in more detail.
Sulphur dyes
Sulphur dyes are non-ionic dyes that contain sulphur linkages, are water insoluble, and produce reasonably cheap and light/wash fast shades. They are applied to cellulosic fabrics in a reduced, anionic state and oxidized after dyeing to reform the non-ionic structure and attach the dye physically to the fabric through aggregation. Sulphur dyes are classified based on their chemical structure and application, and are commonly used in powder, grain, dispersed powder, and paste forms. They are mainly used for cotton, hemp, and viscose to produce bright and brown shades through an exhaust dyeing process using reducing agents like sodium sulphide.
Azo dye presentation
Azo dyes are formed by coupling reactions between colorless components called napthols and bases. The coupling reaction occurs on the fiber to produce an insoluble colored compound with good fastness. Azo dyes are applied by first treating cotton with a napthol solution, then developing the dye by treating with an acidic diazonium salt solution of the base. This produces the colored azo group. A final soaping step improves the rubbing fastness. Azo dyes have good light and washing fastness but poor rubbing fastness without soaping.
Vat Dye (Full PDF) | Vat Dye
Vat dyes are insoluble natural or synthetic dyes that are converted to their soluble leuco form using a reducing agent like sodium hydrosulfite. This allows the dye to penetrate cellulose fibers during the dyeing process. After penetration, the fabric is oxidized, converting the dye back to its insoluble form within the fibers. Key steps are vatting to solubilize the dye, dyeing to allow penetration, and oxidation to fix the dye in the fibers. Vat dyes provide excellent washing fastness due to being locked inside the fibers. However, they are more difficult and costly to apply than other dyes.
Azo dyes
This document discusses different types of azo dyes. Azo dyes contain an azo group (-N=N-) in their chemical structure. They are classified based on the number of azo groups, including mono azo, bis azo, tris azo and tetra azo dyes. Mono azo dyes contain one azo group and are further divided into classes like solvent, pigment, mordant, basic, disperse and reactive dyes. Bis azo dyes contain two azo groups and are classified into types based on their chemical structure and method of preparation, such as AZA', AM E, D E' and AZ x Z' A'. Examples of different azo
Basic Dye (Full PDF) | Basic Dye
Basic dyes are cationic dyes that ionize in solution, giving their colored components a positive charge. They are used for dyeing wool, silk, and acrylic fibers. Basic dyes are soluble in water when mixed with acids like acetic acid. They have high tinctorial strength and unlimited color ranges but poor lightfastness and washfastness. Modified basic dyes have improved properties like better fiber coverage, substantivity, and lightfastness compared to traditional basic dyes.
Common Problems & Corrective Action in Azoic Dyeing
This document provides an assignment on explaining common problems and corrective actions in azoic dyeing. It begins with an introduction to azoic dyes and their properties. It then discusses 12 common problems that can occur in azoic dyeing such as uneven shade, naphthol migration, slow coupling reaction, and causes and corrective actions for each. The assignment was submitted by a student for a course on textile coloration.
Reactive dyes
Reactive dyes are organic dyes that form covalent bonds with cellulose fibers. They were first commercially produced in 1956 and have advantages like excellent color fastness and ease of washing. Reactive dyes contain three parts - a chromophore for color, a reactive group that bonds to fibers, and a bridging group connecting these. Dyeing involves exhaustion of dye onto fibers, fixation through alkaline conditions forming covalent bonds, and washing unfixed dye away. Reactive dyeing gives very colorfast results due to the strong covalent bonds formed.
Acid dyes
Introduction,Properties of Acid dyes, Pre treatment,Dissolving the dye stuff, Dyeing and Applications
Sulphur dye
This document discusses the properties, mechanisms, classification, and application of sulphur dyes. Sulphur dyes contain sulphur linkages, are insoluble in water but soluble in sodium sulphide. During dyeing, sodium sulphide converts the dye to soluble thiols which penetrate the fiber and are oxidized back to the insoluble dye. Sulphur dyes are classified as sulphur, leuco sulphur, or solubilized. Dyeing involves preparing a dye bath and dyeing cotton at a boil. Aftertreatment can improve fastness. Disadvantages include bronzing shades and tendering of sulphur black dyed goods over time.
Dye classification and dying process
This document discusses the classification and properties of various dye classes. It states that different dye classes are only applicable to certain fibre types, and describes the main dye classes for cellulosic fibres (direct, azoic, reactive, vat, sulphur dyes), protein fibres (acid, metal-complex, chrome dyes), other fibres like polyester and acrylic (disperse, cationic dyes). Each dye class is defined in terms of its application method, colour range, fastness properties and main applications. Examples of individual dyes within each class are also provided.
Reactive dyes
Reactive dyes readily dissolve in water and form covalent bonds with cellulose fibers, providing good washing fastness. They are classified based on their reactivity - alkaline controllable dyes require gradual alkali addition, salt controllable dyes require portion-wise salt addition, and temperature controllable dyes react above boiling temperatures. Bifunctional reactive dyes contain two reactive groups, allowing for high exhaustion and fixation during dyeing of cotton which involves dyeing with salt, forming covalent bonds with alkali, and post-treatment processes like soaping and washing.
Conditions & Effects Of Disperse Dyeing
This document summarizes the effect of various conditions on disperse dyeing. It discusses that disperse dyes are organic compounds that can color hydrophobic fibers from aqueous dispersion without ionizing groups. It then classifies the main types of disperse dyes and describes the effects of temperature, pH, and time on the dyeing process. Maintaining the optimal temperature, acidic pH between 4.5-5.5, and sufficient time are important to ensure good color yield, fastness, and strength of the dyed fabric.
Acid Dye (Full PDF)
This document discusses acid dyes, which are water-soluble dyes used on protein fibers like silk, wool, and nylon. Acid dyes are classified based on their leveling characteristics during dyeing and their fastness properties. They contain aromatic molecules with sulphonyl or amino groups that make them soluble in water. Acid dyes are applied in acidic dye baths and bond to fibers through hydrogen bonding and ionic linkages. Their fastness properties range from poor to excellent depending on the dye's structure and how it is applied.
Effect of Various Conditions on Disperse Dyeing
The document discusses the effect of various conditions on disperse dyeing. It explains that temperature, pH, and time all play important roles. For dyeing with disperse dyes, a temperature above 100°C is needed for fiber swelling. The dye bath pH should be between 4.5-5.5 for satisfactory dye exhaustion. Time is also crucial - if not maintained properly, it can result in poor color fastness and an unacceptable dyeing outcome. Maintaining the appropriate conditions is essential for effective disperse dyeing.
Azo dye
Azo dyes are formed by the chemical reaction of two colorless components - napthols and bases (also called coupling and diazotization components). The dyeing process involves first treating the fabric with a napthol solution, then developing the dye by exposing the naptholated fabric to the diazotized base solution. This results in an insoluble azo compound that provides good light and washing fastness but poorer rubbing fastness. Rubbing fastness can be improved through a soaping treatment after dyeing. Azo dyes have excellent properties but require a multi-step process compared to ready-made dyes.
Ink analysis
This document discusses different types of inks used throughout history, including their compositions and uses. It describes logwood inks made from extracts of the Haematoxylon campeche tree mixed with sodium carbonate and potassium chromate that produce a purplish black color. Fountain pen inks are water-based but contain additives for color, flow and characteristics. Ballpoint pen ink consists of synthetic dyes in glycol or benzyl alcohol solvents with additives like fatty acids and resins. Forensic analysis methods for inks include thin layer chromatography, high pressure liquid chromatography, ultraviolet light examination, and digital image processing to determine the number and types of inks in a document.
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5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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ACEP Magazine edition 4th launched on 05.06.2024
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
International Conference on NLP, Artificial Intelligence, Machine Learning an...
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...
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Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
this notes have been created
by Eric36 at nyamata ttc
after readings
pe book for y2sme .
Embedded machine learning-based road conditions and driving behavior monitoring
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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原版一模一样【微信：741003700 】【美国密歇根州立大学毕业证学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
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Razib
- 1. Welcome to my presentation Name :-Razib Chandra sutrader Id:-131-23-181
- 2. My presentation is on Azoic dye
- 3. AZOIC DYE The dyes containing azo groups – N = N – are called Azoic dye.These are not ready made dyes but are produced by reaction of two components – Diazocomponent and coupling component (Napthol). Azoic dye also named as Napthol, Magic and Ice color.
- 4. Some properties of azoic dyes 1.This dyes are insoluble in water 2.Cotton fabric is used to dye 3.Rubbing fastness is poor 4.Good wash fastness and light fastness
- 5. Dyeing of cotton fabric with Azoic dye 3 steps are required for dyeing off cotton fabric 1.Naptholation 2.Diazotization 3.coupling
- 6. Azoic dye is called ‘Ice’ and ‘Magic’ color,napthol color,fast color
- 7. Thank you