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　　In the modern business environment, cash registers have become an indispensable tool for merchants. However, when choosing a cash register, many merchants will face a dilemma: should they choose an all-in-one machine or a computer? There is no simple answer to this question because it depends on the specific needs and budget of the merchant. This article will detail the advantages and disadvantages of the two types of cash registers to help merchants make a more informed decision.

　　First, let’s take a look at the all-in-one cash register. An all-in-one cash register is a device that integrates a computer, a monitor, and a printer. Its advantages are simple installation, easy operation, and low maintenance costs. Since all the hardware is integrated into one device, there is no need for additional computers, monitors, and printers, which also saves space. In addition, all-in-one cash registers generally have good compatibility and scalability, which can meet the needs of most merchants.

　　All-in-one Cash Register.jpg

　　However, all-in-one cash registers also have some disadvantages. First, due to its large size, it takes up more space. This may be a problem for merchants with limited space. Secondly, the operating cost of an all-in-one cash register may be higher than that of a computer. Although the maintenance cost of an all-in-one machine is lower, because its hardware is integrated together, the cost of repair may be higher if a failure occurs.

　　Next, let’s take a look at the computer cash register. A computer cash register is a device that consists of one or more computers, monitors, and printers. Its advantages are that it can be customized as needed and has high flexibility. Merchants can choose different computers and accessories according to their needs to meet their specific needs. In addition, since the computer cash register can operate independently, when a failure occurs, only the corresponding parts need to be repaired, and the entire device does not need to be repaired. However, there are some disadvantages to computer cash registers. First, because its hardware is independent, it may be more complicated to install and maintain than an all-in-one machine. In addition, the operating cost of a computer cash register may be higher than that of an all-in-one machine. Although the maintenance cost of a computer is lower, because its hardware is independent, the cost of repair may be relatively high if a failure occurs.

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According to a BBC report on the 20th, researchers at the University of Amsterdam in the Netherlands said at a medical conference held on the 18th that they successfully removed the HIV virus (HIV) from infected cells using CRISPR gene editing technology.

Screenshots of related reports

It is reported that although existing drugs can prevent the HIV virus from further penetrating into the human body, they cannot clear the existing virus in the patient’s body. Even if patients receive effective treatment and the HIV virus in their bodies enters a dormant or latent state, they still carry HIV DNA or genetic material.

According to the BBC, the CRISPR gene editing technology used by the researchers is similar in principle to scissors, which can remove or inactivate HIV-infected cells by cutting DNA. This gene editing technology won the 2020 Nobel Prize in Chemistry.

At present, the scientific research process at the University of Amsterdam is still in the proof-of-concept stage, and it will take a long time for it to be truly applied to AIDS treatment.

Scientists believe that if this new technology can be further developed, it will be expected to eliminate all HIV in the human body, thereby curing AIDS. However, some virologists also said that the possible off-target effects and long-term side effects of this technology are worrying.

Wen| Reporter Leng Shuang

　　Dear future international students, the excitement and anxiety of stepping into a foreign land coexist, especially the concern that the high prices abroad will make the already limited living expenses even more difficult?Actually, it’s not just this reason, sourching agent Its own advantages are also obvious, and it is normal for the market to perform well. https://flyportt.com/

　　Don’t be afraid, FLY has prepared a series of recommended mailing items for you to study abroad, making your study abroad journey easy and comfortable!

　　Lifestyle category:

　　Conversion plug: Different countries have different socket standards. With a few conversion plugs, your electronic devices can seamlessly connect to foreign power sources, avoiding the embarrassment of “power shortage”.

　　Paper drawer and storage box: Although they can also be purchased abroad, the price is often expensive. Sending in advance is both economical and environmentally friendly, and can also be selected according to personal preferences, improving the quality of life.

　　Garbage bags and slippers: These small items may seem inconspicuous, but they are indispensable in daily life. There are various varieties and affordable prices in China, making it a must-have item in study abroad luggage.

　　Glasses: Especially for friends with vision needs, foreign glasses are not only expensive, but may also face language communication barriers. Prepare spare glasses in advance, which is both worry free and cost-effective.

　　international students

　　Food category:

　　Potato chips, Luosifen, instant noodles: These snacks not only satisfy your Chinese stomach, but also are the best choice to alleviate homesickness. Although substitutes can be found abroad, the taste is always slightly inferior.

　　Hotpot seasoning and rice noodles: On weekends, make a few friends and cook a authentic Chinese hotpot or rice noodle dish by yourself. It’s warm and satisfying, instantly bringing you closer to your hometown.

　　Spicy sauce: For friends who enjoy spicy food, a bottle of hometown style spicy sauce is the best seasoning for overseas life. Every bite is the taste of home, bringing comfort to homesickness.

　　international students

　　Accessories category:

　　Contact lenses, false eyelashes, and wearing armor: These beauty accessories can help you maintain your personality and fashion even in a foreign land, and there are many choices in China with obvious price advantages.

　　Phone case and earring necklace: compact and lightweight, easy to carry, and replaceable at any time, allowing you to showcase your unique charm in different occasions

　　Electrical appliances:

　　Rice cookers and kettles: Cooking Chinese food by oneself is both healthy and economical. Domestic brands are diverse and fully functional, making them more affordable than purchasing from abroad.

　　Folding washing machine: For international students with limited living space, folding washing machines are simply a miracle tool, easily solving the problem of changing laundry.

　　Electric boiling pot and hair dryer: multifunctional electric boiling pot with one pot and multiple uses, convenient and fast; Hair dryers are essential tools for daily hair care, and choosing domestic brands offers high cost-effectiveness.

　　international students

　　If you are not used to life/food when studying abroad, you can transfer more daily necessities and snacks abroad, so that you won’t be so painful at the beginning!

　　A point of sale (POS) terminal is a critical component for businesses, facilitating transactions and managing sales. However, encountering a black screen on your POS terminal can disrupt operations and lead to customer inconvenience. Here¨s a guide on how to effectively troubleshoot and resolve this issue:If you want to make a big difference in the market, pos machine factory It is necessary to intensify the upgrading of products on the original basis in order to meet the consumption needs of consumers. https://www.posodm.com

　　1. Check Power Connection:

　　Ensure that the point of sale terminal is properly plugged into a power source. Sometimes, loose connections or power interruptions can cause the screen to go black. Verify if the power cable is securely connected both to the terminal and the power outlet.

　　2. Inspect Display Settings:

　　Check the brightness and contrast settings on the POS terminal¨s display. It¨s possible that the screen brightness might be set too low, making it appear black. Adjust these settings to see if the screen lights up.

　　3. Restart the Terminal:

　　Perform a simple restart by powering off the POS terminal, waiting for a few seconds, and then powering it back on. This basic troubleshooting step can often resolve temporary software glitches that cause the screen to go black.

　　cash register screen.jpg

　　4. Check for Software Updates:

　　Ensure that the POS system software is up to date. Sometimes, outdated software can cause compatibility issues with the terminal hardware, leading to display problems. Update the software according to the manufacturer¨s instructions.

　　5. Inspect Hardware Connections:

　　Examine all cables connected to the POS terminal, including peripherals such as printers or scanners. A loose or faulty cable connection can disrupt the terminal¨s operation and lead to a black screen. Secure all connections and replace any damaged cables.

　　6. Battery Issues (if applicable):

　　If your POS terminal has a battery backup, check if the battery is functioning properly. A depleted or faulty battery can cause the terminal to power off unexpectedly or display a black screen. Replace the battery if necessary.

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According to a Reuters report on March 12, at least two armed groups headquartered in Ukraine said on social media that they invaded Russia’s western border on the 12th.

Reports said that both the Russian Free Corps and the Siberian Battalion announced on the Telegraph social platform that they had launched an attack from Ukraine to Russia.

The Russian Free Corps said in the telegram: We will regain our land from (Russia) centimetre by centimeter.

Russian officials say the groups are puppets of the Ukraine military and the CIA. Moscow says the latter is trying to incite chaos in Russia.

Andreyusov, spokesman for Ukraine’s military intelligence department, said that these organizations operate on Russian territory independently of Ukraine.

The Russian Freedom Corps ‘statement also appears to point to the upcoming Russian presidential election this weekend. The group said: People will vote for whom they want, Russians will live a free life.

A number of armed groups, including the Russian Free Corps, have previously claimed responsibility for other cross-border attacks from Ukraine to Russia. (Compiled by Xiong Wenyuan)

　　Friends, do you always have a headache when thinking about international transshipment, worrying about the high tariffs and the complicated customs clearance process?Don¨t worry!!! FLY will give you the customs clearance tips today, so you can deal with it easily~In the eyes of peers, shipping agent It has good qualities that people covet, and it also has many loyal fans that people envy. https://flyportt.com/

　　1. Understand the tariff policy

　　Know yourself and your enemy, and you will never be defeated. Different countries and regions have different tariff policies on imported goods. Some have tax-free quotas, while others impose high tax rates on specific goods.

　　Therefore, before sending international express, be sure to understand the tariff policy of the destination first, plan the list reasonably, and avoid exceeding the tax-free amount and incurring unnecessary expenses.

　　2. Choose a professional shipping company

　　A reliable shipping company can provide personalized customs clearance suggestions based on the type, quantity and value of your goods to ensure that your package can pass through customs smoothly.

　　When choosing a shipping company, be sure to pay attention to its reputation and service quality. You can learn about the company’s reputation and service level through searches on major online platforms and recommendations from friends. At the same time, you should also pay attention to the company’s transportation methods and timeliness to ensure that your package can reach its destination safely and quickly.

　　import customs clearance

　　3. Fill in the declaration information accurately

　　When filling in the declaration information, be sure to maintain a high degree of accuracy and honesty. Customs will assess the value and nature of the goods based on the declaration information you provide, and decide whether to levy taxes.

　　Therefore, please be sure to fill in the product name, quantity, price and other information according to the actual situation, and do not take the chance of deliberately underreporting or concealing information. This will not only avoid unnecessary trouble, but also maintain your personal reputation.

　　4. Reasonable packaging and labeling

　　Packing and labeling are also very important parts of international transit. Reasonable packaging can protect the goods from damage during transportation, and it is also convenient for customs officers to clear customs and improve customs clearance efficiency. When packing, please pay attention to placing the goods in categories and attach a detailed list. For fragile or valuable items, please take appropriate protective measures, such as using foam boxes, bubble films and other packaging materials. This will not only ensure that the goods arrive safely in your hands, but also leave a good impression on customs officers.

　　import customs clearance

　　5. Maintain communication and cooperation

　　If you encounter customs clearance problems, please do not panic. First, stay calm and read the customs notice or email carefully; second, contact the shipping company or customs in time to communicate the situation and actively cooperate in handling; finally, provide necessary certification documents or information as required to assist in solving the problem. Through active communication and cooperation, most customs clearance problems can be properly resolved.

　　A point of sale (POS) terminal is a critical component for businesses, facilitating transactions and managing sales. However, encountering a black screen on your POS terminal can disrupt operations and lead to customer inconvenience. Here¨s a guide on how to effectively troubleshoot and resolve this issue:know point of sale terminal Our growth has to go through many hardships, but entrepreneurs are never afraid and boldly move forward. https://www.posodm.com

　　1. Check Power Connection:

　　Ensure that the point of sale terminal is properly plugged into a power source. Sometimes, loose connections or power interruptions can cause the screen to go black. Verify if the power cable is securely connected both to the terminal and the power outlet.

　　2. Inspect Display Settings:

　　Check the brightness and contrast settings on the POS terminal¨s display. It¨s possible that the screen brightness might be set too low, making it appear black. Adjust these settings to see if the screen lights up.

　　3. Restart the Terminal:

　　Perform a simple restart by powering off the POS terminal, waiting for a few seconds, and then powering it back on. This basic troubleshooting step can often resolve temporary software glitches that cause the screen to go black.

　　cash register screen.jpg

　　4. Check for Software Updates:

　　Ensure that the POS system software is up to date. Sometimes, outdated software can cause compatibility issues with the terminal hardware, leading to display problems. Update the software according to the manufacturer¨s instructions.

　　5. Inspect Hardware Connections:

　　Examine all cables connected to the POS terminal, including peripherals such as printers or scanners. A loose or faulty cable connection can disrupt the terminal¨s operation and lead to a black screen. Secure all connections and replace any damaged cables.

　　6. Battery Issues (if applicable):

　　If your POS terminal has a battery backup, check if the battery is functioning properly. A depleted or faulty battery can cause the terminal to power off unexpectedly or display a black screen. Replace the battery if necessary.

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On the 24th local time, Sandis Saka, governor of Enga Province, Papua New Guinea, publicly issued a document saying that the landslide that occurred in the province in the early morning of the day was an unprecedented natural disaster that caused huge losses to property and human lives. The landslide affected more than six villages in the province, and it is not yet possible to calculate specific losses.

Sandis Saka expressed sympathy to local communities and families, as well as to the people affected by the disaster and the victims.

Sandis Saka said that the Nga provincial government deployed a Rapid Incident Response Service team to the scene that morning to carry out rescue work and conduct a rapid assessment of the extent of local damage. The team is composed of officials from the Provincial Disaster Relief Office, Provincial Health Bureau, Police, Papua New Guinea Defense Force, and international organizations based in Papua New Guinea such as the Office of International Migration and the United Nations Development Program.

At about 3 a.m. local time on the 24th, a village in Enga Province, Papua New Guinea suffered a landslide. Local residents said the estimated death toll exceeded 100. Authorities have not yet confirmed the number of casualties. (General reporter Liu Zhimin)

　　In the realm of electronic wiring, the choice between various cable types can significantly impact performance, reliability, and safety. One standout option gaining traction is TRVVSP shielded cable, renowned for its robust shielding capabilities and suitability for demanding electronic applications.with multicore cable price For example, if it continues to develop, it will definitely become the benchmark of the industry and play an important role in leading the market. https://www.linkcablecn.com

　　What is TRVVSP Shielded Cable?

　　TRVVSP shielded cable belongs to the category of shielded cables, specifically designed to minimize electromagnetic interference (EMI) and radio frequency interference (RFI) in electronic circuits. It consists of multiple insulated conductors twisted together, encased in a protective shield, and often surrounded by an outer jacket for added durability.

　　TRVVSP Twisted Pair cable.jpg

　　shielded twisted pair cable.jpg

　　Advantages of Shielded Cable

　　Shielded cables like TRVVSP offer several key advantages over their unshielded counterparts, particularly in electronic environments:

　　EMI and RFI Mitigation: The primary benefit of shielded cables is their ability to reduce interference. This interference can degrade signal quality or cause malfunctions in sensitive electronic equipment. TRVVSP cables, with their shielding layers, effectively block external electromagnetic fields and prevent emission of internal signals.

　　Improved Signal Integrity: By minimizing interference, shielded cables maintain higher signal integrity over long distances. This is crucial for applications requiring reliable data transmission and communication, such as in industrial automation, telecommunications, and medical equipment.

　　Enhanced Security and Reliability: Shielded cables enhance the security of data transmission by reducing the risk of data breaches or signal interception. They also improve the overall reliability of electronic systems by protecting against environmental noise and electrical faults.

　　Shielded Ethernet Cable and Shielded Twisted Pair Cable

　　TRVVSP shielded cable encompasses variations like shielded ethernet cables and shielded twisted pair cables:

　　Shielded Ethernet Cable: Used extensively in networking environments, shielded ethernet cables prevent crosstalk and external interference, ensuring stable and high-speed data transfer.

　　Shielded Twisted Pair Cable (STP): STP cables feature pairs of insulated wires twisted together and surrounded by a foil or braided shield. This design minimizes electromagnetic interference, making them ideal for environments with high EMI.

　　Applications and Considerations

　　TRVVSP shielded cables find applications in diverse industries:

　　Industrial Automation: Ensures reliable control system operations.

　　Telecommunications: Maintains clear signal transmission over long distances.

　　Medical Equipment: Provides stable operation of sensitive diagnostic and imaging devices.

　　Data Centers: Supports high-speed data transfer without signal degradation.

　　When choosing TRVVSP shielded cable, consider factors such as environmental conditions, installation requirements, and budget. While typically more expensive than unshielded alternatives, the long-term benefits in terms of performance and reliability justify the investment.

　　TRVVSP shielded cable stands out as a robust solution for electronic applications where signal integrity and reliability are paramount. By effectively reducing electromagnetic interference and maintaining data integrity, these cables ensure smooth operation of critical systems in various industries. Whether for networking, industrial automation, or medical equipment, choosing TRVVSP shielded cable signifies a commitment to quality, security, and operational excellence in electronic installations.

　　LED car lights refer to lamps that use LED technology for external and internal lighting in both the light sources inside and outside the car. External lighting equipment is about thermal limits and EMC. Use LED car lights to create an in-car environment with a lifespan of 50,000 hours. The structure of LED is sturdy and not easily affected by vibration, and the light output brightness will not decrease significantly during use.know led strobe warning lights Our growth has to go through many hardships, but entrepreneurs are never afraid and boldly move forward. https://www.lkx-mascarello.com

　　LED car lights are suitable for various lighting applications in automotive electronics, including headlights (high beam and low beam), fog lights, tail lights, brake lights, turn signals, daytime running lights, pedal lights, instrument lights, license plate lights, door lights, interior lights, width lights, navigation, entertainment systems, backlights and indicator lights. Compared with traditional light sources, LED light sources have large differences in physical size, luminous flux, spectrum, and spatial distribution of light intensity. Therefore, LED detection cannot replicate the standards and methods of traditional light source detection.

　　What Are the Most Common Detection Technologies for LED Headlights?

　　Detection of optical parameters of LED lamps

　　1. Luminous intensity detection

　　Light intensity is the strength of light, which is the amount of radiated light within a certain angle range. Since LED light is relatively concentrated, the inverse square law does not apply at close distances. Therefore, the CIE127 standard stipulates that the conditions for measuring light intensity are A (far-field conditions) and B (near-field conditions) for measuring the average normal light intensity. The detector area for both conditions is 1cm2. Generally, standard condition B is used to measure luminous intensity.

　　2. Luminous flux and light efficiency detection

　　Luminous flux is a physical quantity that measures the total amount of light emitted by a light source. It represents the sum of the light energy emitted by the light source in all directions. There are two main methods for detecting luminous flux:

　　Integral method: Light the standard lamp and the lamp under test in the integrating sphere in turn, and record their readings on the photoelectric converter as Es and ED respectively. The luminous flux of the standard lamp is known as Φs, then the luminous flux of the lamp under test ΦDED〜Φs/Es. The integral method uses the principle of “point light source” and is simple to operate, but it is affected by the color temperature deviation between the standard lamp and the lamp under test, and the measurement error is large.

　　Spectrophotometry: This method calculates the luminous flux by measuring the spectral energy distribution of the light source \( P(\lambda) \). Use a monochromator to measure the spectral energy of the standard lamp in the wavelength range of 380nm to 780nm on an integrating sphere, and then measure the spectral energy of the lamp under test under the same conditions. By integrating these spectral energy values, the luminous flux of the lamp under test can be obtained.

　　Luminous efficiency is a parameter that describes the efficiency of a light source. It is defined as the ratio of the luminous flux emitted by the light source to the electrical power it consumes. For LED light sources, constant current is usually used to measure luminous efficiency to ensure the accuracy and repeatability of the measurement.