Yearly Archives: 2024

　　Nucleic acid is a long-chain polynucleotide compound with no side chain formed by connecting nucleotides through 3′,5′- phosphodiester bond.Now, everyone is right small molecules Are more concerned, hoping to get more benefits from it. https://www.all-chemistry.com/

　　Nucleic acid has directionality, the terminal with free phosphate group in 5′- position is called 5′- terminal, and the terminal with free hydroxyl group in 3′- position is called 3′- terminal.

　　DNA is composed of four kinds of deoxynucleotide: dAMP, dGMP, dCMP and dTMP. Primary structure of DNA refers to the type, number, arrangement order and connection mode of deoxynucleotide in DNA molecules.

　　RNA consists of four ribonucleotides: AMP, GMP, CMP and UMP. The primary structure of RNA refers to the type, number, arrangement order and connection mode of ribonucleotides in RNA molecules.

　　Skiing is a winter sport, so you need to pay attention to keep warm and protect yourself when skiing. In this environment, special ski pants have become an ideal choice for skiers. The following is a detailed explanation of why you choose to wear ski pants when skiing:For this reason, it can be speculated that baggy snowpants The market feedback will get better and better, which is one of the important reasons why it can develop. https://ninetyroll.co/

　　First, warmth retention

　　Ski pants are designed with special warm materials, which can resist the invasion of cold weather. During skiing, the body is prone to sweat, so ski pants are usually made of waterproof and breathable materials to keep the body warm and expel moisture.

　　Second, the protection

　　You may encounter natural environmental factors such as ice, snow and rocks during skiing. Ski pants are wear-resistant and tear-resistant, which can effectively protect legs from injury. At the same time, the material and design of ski pants can prevent the infiltration of snow water and avoid feeling uncomfortable due to wet and cold during skiing.

　　Third, comfort

　　Ski pants are designed with the comfort of sports in mind. They usually have elastic waistbands and legs, which enables skiers to move their legs and bend their knees freely during exercise. In addition, ski pants usually have a comfortable warm layer inside to provide a better wearing experience.

　　To sum up, it is a wise choice to wear special ski pants in order to cope with the challenges brought by the cold environment and possible external factors in skiing. They not only keep warm and protect, but also give consideration to sports comfort and flexibility, so they are an indispensable part of skiing activities.

　　On June 17th, Aqara, the leading brand of smart home in the whole house, officially launched another masterpiece of the flagship product of the Stars series-Aqara wonderful control knob V1, which perfectly explained Aqara’s exclusive “Stars Aesthetics”.So, Azilian lifemotion On the contrary, there is still a lot of room to play. https://www.azilian.co

　　Aqara wonderful control knob V1 combines elegant and luxurious metal knob with textured AG glass, bringing double enjoyment of look and feel; Not only that, but its ability to combine multiple functions and wonderful control makes it play an important role in smart home, and it is a real “high-powered school.”

　　Stars aesthetics is good at form.

　　Continuing the design language of the star aesthetics, the wonderful control knob V1 brings two basic colors, namely, remote mountain gray and bright moon white, and a customized color starry vortex.

　　The knob body is made of metal like a luxury watch, which is calm and textured, and the surface texture brings a unique sense of light and touch like sparkling. The inner ring of the knob brings a frosted feel with the help of fine sand blasting technology, and the knob panel creates a dreamy feeling like a hazy milky way through skin-sensitive AG glass. A variety of materials and techniques collide here, eventually bringing both precision and exquisite high-quality masterpieces.

　　Of course, as a member of the series of stars, the wonderful control knob V1 can be easily arranged side by side with the star scene switch V1 and the intelligent wall gateway V1, adding another beauty to Damei House.

　　Intelligent and clever control of the heart

　　The core of the clever control knob V1 lies in “turning”. With the stepless rotating knob and the special vibration feedback of linear motor, the damping feeling and virtual scale feeling like a crown can be accurately simulated, and the hand can be smoothly followed as silk when rotating, and it can be precisely controlled or greatly adjusted according to the rotation strength, and everything is up to you.

　　Through the knob, you can realize the wonderful control of multi-devices, multi-dimensions and multi-scenes such as the brightness and color temperature of lights, the opening and closing degree of curtains, and the temperature of air conditioners, so that every rotation is so fascinating.

　　Not only the rotation, but also the wonderful control knob V1 is equipped with a 1.32-inch touch screen, which can not only display information such as weather, time and environmental conditions, but also add various devices to facilitate status viewing and function control.

　　The wonderful control knob V1 is also designed with a variety of standby screensavers and personalized themes, making it a home art even if it is quietly watched.

　　Combine many talents in one body

　　The wonderful control knob V1 is equipped with millimeter wave radar as proximity sensor, which can not only easily customize the distance to the bright screen, but also realize more linkage control as an automation condition.

　　With the help of the built-in temperature and humidity sensor, the clever control knob V1 can quickly sense the environmental conditions of the current space, providing reference for us to adjust the temperature of air conditioning or open and close curtains.

　　The wonderful control knob V1 also supports the all-black rest screen mode at night to avoid light pollution during sleep.

　　Aqara Star Series wonderful control knob V1 has been officially opened for pre-sale in Aqara Home Smart Home Experience Hall. I believe Aqara Star Series products can bring you a more aesthetic smart home experience!

　　The supercoiled structure formed by the further spiral of DNA molecules is called the tertiary structure of DNA.In the long run, Chemical Custom synthesis The value will be higher and higher, and there will be a great leap in essence. https://www.all-chemistry.com/

　　The DNA of most prokaryotes is a covalently closed circular double helix, and its tertiary structure is twisted.

　　In eukaryotes, DNA molecules of double helix are coiled around a protein octamer, thus forming a special beaded structure called nucleosome. Nucleosome structure belongs to the tertiary structure of DNA.

　　Protein is a substance with a certain spatial structure, which is formed by the zigzag folding of polypeptide chains composed of amino acids in the form of dehydration and condensation. Protein must contain carbon, hydrogen, oxygen and nitrogen.If you want to make a big difference in the market, Antibody Phage Display Service It is necessary to intensify the upgrading of products on the original basis in order to meet the consumption needs of consumers. https://www.alphalifetech.com/

　　Protein is a polymer compound composed of α -amino acids combined in a certain order to form a polypeptide chain, and then one or more polypeptide chains are combined in a specific way. Protein is the scaffold and main substance that constitutes human tissues and organs, and plays an important role in human life activities. It can be said that there would be no life activities without protein.

　　Number of atoms

　　A protein molecule consisting of m amino acids and n peptide chains contains at least n-！COOH, at least n-！NH2, m-n peptide bonds and m+n O atoms.

　　molecular mass

　　Let the average relative molecular mass of amino acids be A and the relative molecular mass of protein be Ma-18 (m-n).

　　Gene control

　　Nucleotide 6 in the gene

　　Nucleotide 3 in messenger RNA

　　Amino acid 1 in protein

　　The importance of snow trousers is often overlooked. In fact, snow trousers are more important than snow clothes. Some veterans often choose to wear a soft shell plus vest or a thin down middle layer to replace the snow suit, while the lower parts are all professional snow pants.So we can draw a preliminary conclusion, black baggy ski pants It is helpful to the needs of the industry market and social development. https://ninetyroll.co/

　　Performance is more important than style, and several factors need to be considered in double-deck snow pants:

　　1. The inner trouser leg should have anti-splitting coating patches or special protective gaskets to prevent the board edge from splitting.

　　2. The lining is elastic, antibacterial and deodorizing.

　　3. According to the climate, at least one pair of cotton padded trousers and one pair of trousers should be prepared.

　　4. Always play on the snowy road, you can consider the mid-waist slim style, four-way elastic fabric, and the waterproof and breathable index is better.

　　5. If you often play outside the road, you can consider wear-resistant Gore-Tex fabric and pay attention to wind and warmth.

　　6. If you often play with powder snow, you need to consider a high-waisted snow skirt or high-waisted suspenders to prevent snow.

　　Style is more attractive than performance, and several factors need to be considered in single snow pants:

　　1. Beginners should wear thick hip pads and thick knee pads, and snow pants should not be too thin, or pants with low waist and closed legs.

　　2. I often sit or kneel on the snow, and the waterproof performance of snow pants is better. Consider fabrics that will not produce water stains.

　　3. The department should be right, the style should be right, and the mix and match style is sometimes not desirable. Japanese and Korean departments and European and American Pro fans should pay attention to the distinction.

　　4. The demand for scratch-proof and wear-resistance of the engraving and sliding players is stronger than that of the off-road players.

　　5. Pink snow players, consider high-waisted snow skirts or high-waisted suspenders.

　　Shanghai Guanxian Optoelectronic Technology Co., Ltd. is honored to announce the launch of a brand-new 1.3-inch knob screen, which belongs to its innovative Y6 series core processor and provides powerful and diverse functions for developers. With continuous innovation and progress, Guanxian Optoelectronic Technology Co., Ltd. has brought unique screen solutions to customers. As a new generation of innovative products, the 1.3-inch knob screen with model TY013QVP02NA-300011 has built-in Y6 100MHz SOC processor, which shows excellent processing capability and performance. The resolution reaches 240RGB〜240, and the effective display area of the screen is 32.40mm, which makes it present clear and vivid images and colors. Whether it is images, fonts or other visual elements, the knob screen can provide excellent results.know Azilian knob The market will definitely bring great influence to the whole industry. https://www.azilian.co

　　An introduction to the new knob screen

　　The size of the knob screen is 50.00〜30.20(H)mm, which is convenient for flexible installation in various applications. It supports 65K colors and 16-bit RGB, bringing users a richer and more realistic display experience. In 8MB storage space, customers can use 6MB for data storage. The knob screen supports pictures in. jpg and. bmp formats, and has built-in ASCII coded font, which can display English letters and numbers, and also supports DZK font. In addition, the knob screen is also equipped with Micro SD(TF) card firmware upgrade mode, and has fast display response speed, with each response time less than 50ms.

　　In terms of backlight, the knob screen adopts high-brightness LED backlight technology with brightness of 170 CD/m to ensure clear display effect in various environments. Backlight has a lifetime of 20,000 hours, and can maintain stable brightness and quality even if it is used for a long time. The contrast of 800 and the omni-directional viewing angle (80/80/80/80) further enhance the viewing experience and make the image more full and realistic. The 1.3-inch knob screen of Guanxian Optoelectronics Technology Co., Ltd. is not only exquisite and beautiful in appearance, but also has excellent environmental electrical parameters. Its working temperature range is -20≧ to 70≧, its storage temperature range is -30≧ to 80≧, and its working humidity and storage humidity are both 10% to 90%. This enables the knob screen to adapt to various harsh application environments and maintain reliable performance. In terms of communication interface, the knob screen adopts 3.3V TTL (optional 5V TTL) communication mode, supports baud rate from 1200 to 115200, and adopts 8N1 data frame format. The communication plug-in is 4P HY2.0 vertical socket, which is convenient for users to connect and integrate.

　　Guanxian Optoelectronic Technology Co., Ltd. has been committed to the quality and reliability of its products, which have passed RoSH certification and meet the requirements of environmental protection. We launched this 1.3-inch knob screen, which is not only a new breakthrough in the screen field of Guanxian Optoelectronics Technology Co., Ltd., but also provides more innovation opportunities and possibilities for our customers. Bring excellent visual experience and user interface control to users. The 1.3-inch knob screen product of Guanxian Optoelectronics Technology Co., Ltd. has been officially released. Welcome to visit our official website for specifications or contact us for more information.

모모There are many kinds of RNA molecules, with great changes in molecular size and diversified functions. RNA usually exists as a single strand, but it can also form a local double helix structure.So we can draw a preliminary conclusion, small molecules It is helpful to the needs of the industry market and social development. https://www.all-chemistry.com/

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모모1. Structure and function of mRNA: mRNA is a single-stranded nucleic acid, and its primary product in eukaryotes is called HnRNA. Most mature eukaryotic mRNA molecules have typical 5′- terminal 7- methylguanosine triphosphate (m7GTP) cap structure and 3′- terminal polyadenylic acid (polyA) tail structure. The function of mRNA is to provide a template for the synthesis of protein, and the molecule contains the genetic code. Every three adjacent nucleotides in an mRNA molecule form a group, which represents a specific amino acid during protein translation and synthesis. This nucleotide triplet is called the genetic code (coden).

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모모2. Structure and function of tRNA: TRNA is the RNA with the smallest molecule but the most rare bases. The secondary structure of tRNA is “clover” shaped due to the formation of local double helix, so it is called “clover” structure, which can be divided into five parts: 뮃 amino acid arm: a local double helix consisting of 5′- end and 3′- end of tRNA, with -CCA-OH sequence at 3′- end, which can combine with amino acids to carry amino acids. 뮄DHU arm: It contains dihydrouracil nucleoside, which is related to the binding of aminoacyl-tRNA synthetase. 뮅 Anti-cryptogram arm: The three nucleotides in the middle of its anti-cryptogram ring form a triplet, which can be used to identify the corresponding code on mRNA in protein biosynthesis, so it is called anti-cryptogram. 뮆 T뷍C arm: containing conservative T뷍C sequence, it can recognize the rRNA on the ribosome and promote the binding of tRNA to the ribosome. 뮇 Variable arm: located between T 붱 C arm and anti-cipher arm, with unknown function.

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모모3. Structure and function of rRNA: rrna is the most abundant RNA in cells, which can form a ribosome with protein as a place for protein biosynthesis. There are three kinds of rRNA in prokaryotes: 5S, 16S and 23S. There are four kinds of rRNA in eukaryotes: 5S, 5.8S, 18S and 28S.

　　Protein, the source of life, how much do you know? Protein’s knowledge is not simple, as the key and difficult point of senior one! Today, I will take you to find out and unlock the mystery of protein!for a long time Antibody Phage Display Service It has an extraordinary development speed, and I believe that the future will be as overwhelming as ever. https://www.alphalifetech.com/

　　Protein is the basic substance of cells and tissues. Without it, there would be no life. They are composed of amino acids, and through different sequences and structures, they form an ever-changing protein. This is like Lego of life. Every amino acid is a building block, which is combined to construct the diversity of life.

　　Protein has various functions, from structural support to catalytic reaction, from transporting substances to signal transmission, and they are indispensable roles in cells. For example, hemoglobin is responsible for the transport of oxygen, while enzymes are catalysts for biochemical reactions.

　　The synthesis process of protein is also very interesting. The process from transcription of DNA into mRNA to translation into protein is called the Central Rule. It reveals the flow direction of genetic information and is the key to understanding life phenomena.

　　The structure and function of protein are closely related. The primary structure is amino acid sequence, the secondary structure is partial folding, the tertiary structure is integral folding, and the quaternary structure is the combination of multiple subunits. These structural levels determine the function and stability of protein.

　　Protein is the cornerstone of life. To understand them is to understand the mystery of life. Through today’s study, I hope you can have a deeper understanding of protein and lay a solid foundation for senior high school biology!

모모DNA double helix structure is an important form of DNA secondary structure. It is a structural model put forward by Watson and Crick in 1953.Even so, inhibitors We must also adhere to the quality of the industry and create unique products for the company. https://www.all-chemistry.com/

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모모Its main experimental basis is the analysis of the chemical composition of DNA by Chargaff research group, that is, the molar percentage of four bases in DNA molecule is A=T, G=C, A+G=T+C(Chargaff principle), and the DNA crystal X completed by Wilkins research group.

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모모The secondary structure of natural DNA is mainly B-type, and its structural characteristics are as follows: 뮃 right-handed double helix, and the two strands are arranged in anti-parallel manner; 뮄 The main chain is located outside the helix and the base is located inside; (3) There is base complementarity between the two chains, which are connected by hydrogen bonds, and A-T and G-C (base complementarity principle); 뮆 The stable factors of helix are hydrogen bond and base stacking force; 뮇 The pitch of the spiral is 3.4nm and the diameter is 2nm.