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Program [全てのタグ]の新着質問一覧|teratail(テラテイル) テーブルへ値の代入方法 https://teratail.com/questions/367815?rss=all テーブルへ値の代入方法下記画像のテーブルの最初の行へどのように値を代入するかで悩んでいます。 2021-11-05 00:57:53
Program [全てのタグ]の新着質問一覧|teratail(テラテイル) VBAの.valueに相当するRの関数はなにかないか https://teratail.com/questions/367814?rss=all value 2021-11-05 00:54:18
Program [全てのタグ]の新着質問一覧|teratail(テラテイル) [C++] int型変数に文字列を代入した場合 https://teratail.com/questions/367813?rss=all このコードの実行画面で文字を入力し、Enterキーを押すint変数valに文字列を代入すると、プログラムがフリーズして動かなくなります。 2021-11-05 00:45:23
Program [全てのタグ]の新着質問一覧|teratail(テラテイル) RAID5増設時のSSDは同じSSDが良いのでしょうか https://teratail.com/questions/367812?rss=all RAID増設時のSSDは同じSSDが良いのでしょうかRAID構成増設時のSSD仕様についてnbspサーバーの設計を勉強しております。 2021-11-05 00:39:23
AWS AWSタグが付けられた新着投稿 - Qiita 【AWS/EC2/Amazon Linux2】curl: (60) SSL certificate problem: certificate has expired https://qiita.com/wadakatu/items/80919711bb05d0142cd5 【AWSECAmazonLinux】curlSSLcertificateproblemcertificatehasexpired背景AWSECAmazonLinux上で、最新のGoogleChromeをダウンロードしようと下記Curlコマンドを実行しました。 2021-11-05 00:41:46
AWS AWSタグが付けられた新着投稿 - Qiita eksctlコマンドでEKSのクラスターを作成する https://qiita.com/gintarow/items/cad4d70a104dda6f250b 公式より追加のセキュリティグループeksctlltクラスター名gtclusterControlPlaneSecurityGroupxxxxxxxx追加のクラスターセキュリティグループは、Kubernetesコントロールプレーンからの通信を制御して、アカウントのリソースを計算します。 2021-11-05 00:35:11
Ruby Railsタグが付けられた新着投稿 - Qiita railsチュートリアル第11章 送信メールのプレビュー 送信メールのテスト https://qiita.com/masatom86650860/items/aa4f0a71fcadddfdb50d 「Date」の欄にはどんな内容が表示されているでしょうかurlにrailsmailersusermaileraccountactivationを貼り付けた。 2021-11-05 00:21:58
Ruby Railsタグが付けられた新着投稿 - Qiita railsチュートリアル第11章 アカウント有効化のメール送信 https://qiita.com/masatom86650860/items/e2822882465cb1aa6c20 railsチュートリアル第章アカウント有効化のメール送信アカウント有効化のメール送信アカウント有効化メールの送信に必要なコードを追加このメソッドではActionMailerライブラリを使ってUserのメイラーを追加Usersコントローラのcreateアクションで有効化リンクをメール送信するために使います。 2021-11-05 00:21:39
海外TECH MakeUseOf How to Use the Built-in Image Editing Tools in Photos on Mac https://www.makeuseof.com/how-to-edit-images-using-photos-on-mac/ photos 2021-11-04 15:30:12
海外TECH MakeUseOf How Does Cryptocurrency Work and How Can You Invest? https://www.makeuseof.com/how-does-cryptocurrency-work/ bitcoin 2021-11-04 15:15:11
海外TECH DEV Community How to add custom resources to AWS Amplify. Add an SQS queue that triggers lambda. https://dev.to/sandro_vol/how-to-add-custom-resources-to-aws-amplify-add-an-sqs-queue-that-triggers-lambda-546d How to add custom resources to AWS Amplify Add an SQS queue that triggers lambda AWS Amplify is allowing you to build cloud connected apps very easily It has a broad range of categories it supports natively which you can use to build see my post here But there are still some major components missing such as SQS and RDS In this post I want to show you how to add AWS services that are not currently supported in Amplify We start with the general steps you need to take for adding these resources In the second part I show you how to add an SQS queue that triggers a lambda There are many ways of doing this but I think the easiest is to use CloudFormation It is also possible to use frameworks like CDK or Terraform but CloudFormation is best integrated into Amplify All deployments and updates will still happen from the Amplify CLI and no other tool is needed All code is in this repo How to add custom resources in generalAmplify has a docs page here on how to add custom AWS resources We need to do basically two steps Add custom resource in backend configIn the first step you need to add a custom category name and custom resource name within your backend config amplify backend backend config json lt custom category name gt lt custom resource name gt service lt custom aws service name gt providerPlugin awscloudformation This could look like that Remember that Amplify always uses the category name as a prefix Think about that when using the names to not have the same category all over the resource names Add custom folders amp CloudFormationAfter that you need to add the folders you referenced your category and resource names to amplify backend lt custom category name gt lt custom resource name gt parameters lt custom resource name gt json template lt custom resource name gt jsontemplate lt custom resource name gt json CloudFormation Templatparameters lt custom resource name gt json Additional parameters for CloudFormationYou need both the parameters and the template files Create them directly with the suffix custom resource name to avoid any name clashes in the future Now you would need to add your CloudFormation code in the template file We ll see that in a second Reference existing parametersThe good thing here now is that you can reference output parameters of other CloudFormation categories For example if you need the lambda ARN which was added by Amplify you can reference it in a dependsOn block in the backend config json lt custom category name gt lt custom resource name gt service lt custom aws service name gt providerPlugin awscloudformation dependsOn category function resourceName lambda check amplify status to find resource name attributes arn Check Output Value of the resource specific cloudformation file to find available attributes Input parameters need to be defined in the created template lt custom resource name gt json file The format is lt category gt lt resource name gt lt attribute name Parameters functionlambdaarn Type String The last step for referencing is to get the value into CloudFormation as well For that you need to add an Fn GetAtt to your attribute name functionlambdaarn Fn GetAtt functionlambda Outputs ARN Finally you need to check out your environment again and push it to the cloud with amplify env checkout lt ENV gt and amplify push So that is the theory and seems a lot first Let s add an SQS queue and see how it works in reality Add a custom SQS queueWe want an SQS queue that has access to a lambda function At this point we don t care about what triggers the queue and which messages it will send we simply want to create it In this setup we have an active Amplify application and have created one lambda function named service Backend ConfigFirst of all we add a custom SQS resource I am in root of my project and show you the following steps you need to do to create the queue We start by editing the amplify backend backend config json function service build true providerPlugin awscloudformation service Lambda queue users service SQS providerPlugin awscloudformation We added the queue parameter Several things are defined here queue That is the new category name In lambda it is function standardQueue That is the resource name That is how you name your queue In lambda this is service service This is the custom AWS service we want to use In this case it is SQS providerPlugin That is the provider we use for provisioning the resources In our case and mostly with Amplify this is CloudFormation CloudFormationNow we need to add the folders we need mkdir p amplify backend queue userstouch amplify backend queue users parameters users jsontouch amplify backend queue users template users jsonNow let s first fill the template users json We need to add the CloudFormation code here AWSTemplateFormatVersion Description Queue resource stack creation using Amplify CLI Parameters env Type String Conditions ShouldNotCreateEnvResources Fn Equals Ref env NONE Resources SQS Type AWS SQS Queue Properties QueueName Fn If ShouldNotCreateEnvResources users Fn Join users Ref env Outputs Name Value Ref SQS Arn Value Fn GetAtt SQS Arn Region Value Ref AWS Region At this point we can push the SQS queue to the cloud and create it amplify env checkout lt ENV gt e g devamplify pushThe output of amplify push should now be ❯amplify pushSuccessfully pulled backend environment dev from the cloud Current Environment dev┌ー┬ー┬ー┬ー┐│Category │Resource name │Operation │Provider plugin │├ー┼ー┼ー┼ー┤│Queue │users │Create │awscloudformation │├ー┼ー┼ー┼ー┤│Function │service │No Change │awscloudformation │└ー┴ー┴ー┴ー┘ Are you sure you want to continue Y n Let s hit Y and deploy our SQS queue Let s check the CloudFormation template Go to your Amplify console →find your environment and click on View in CloudFormation If you look at one of the nested stacks you will see that your SQS queue was created Now open SQS and you see your queue being ready to process some messages Lambda ConsumerNow we want to connect our SQS queue with our lambda function To accomplish that we need to connect the lambda with our SQS queue and then define that queue as the trigger for the lambda We already added the URL and ARN of our SQS queue in the outputs section of the CloudFormation template That means that the CloudFormation template will output these two parameters after it is finished and other resources have access to these parameters Let s now use this as an input for lambda For that we need to edit the amplify backend backend config json file again function service build true providerPlugin awscloudformation service Lambda dependsOn category queue resourceName users attributes Name Arn We change the function part of the file so that we are depending on the category queue with our exact name users and the attributes we want to pass Now we just need to update the CloudFormation template of lambda to receive and handle these params Open amplify backend function service service cloudformation template json and edit the following things You need to add your queue name and queue ARN as an input parameter in the section ParametersYou define the name of the SQS queue as an environment variable in the section Resources LambdaFunction Environment Variables AWSTemplateFormatVersion Description Lambda Function resource stack creation using Amplify CLI Parameters THIS IS ADDED in the format lt CATEGORY RESOURCE gt Name without space queueusersName Type String Default queueusersName THIS IS ADDED in the format lt CATEGORY RESOURCE gt Arn without space queueusersArn Type String Default queueusersArn Resources LambdaFunction Type AWS Lambda Function Metadata aws asset path src aws asset property Code Environment Variables THIS IS ADDED Same name as above SQS QUEUE Ref queueusersName ENV Ref env REGION Ref AWS Region Role Fn GetAtt LambdaExecutionRole Arn Runtime nodejs x Layers Timeout After checking out the environment and pushing again with amplify env checkout dev amp amp amplify push y you see that the URL was added as an environment variable in lambda SQS as input triggerFinally let s call the lambda from the SQS queue The connection of the environment variable should show how to pass arguments Don t send a message from the SQS queue and call the lambda from the SQS queue because this ends up in a loop To add the queue as an input trigger we need to edit the CloudFormation template again We will add the following things Add LambdaFunctionEventSourceMapping and add the SQS URL hereAdd an IAM policy statement to give it access to the resourceSee the full file here Resources LambdaFunctionEventSourceMapping DependsOn lambdaexecutionpolicy Type AWS Lambda EventSourceMapping Properties EventSourceArn Ref queueusersArn FunctionName Ref LambdaFunction ADD THIS lambdaexecutionpolicy DependsOn LambdaExecutionRole Type AWS IAM Policy Properties PolicyName lambda execution policy Roles Ref LambdaExecutionRole PolicyDocument Version Statement ADD THIS Effect Allow Action sqs ReceiveMessage sqs DeleteMessage sqs GetQueueAttributes Resource Ref queueusersArn Let s push again amplify env checkout dev amp amp amplify push y and see that our lambda function now has SQS as a triggerFinally just change the resource in the IAM policy of the CloudFormation template to Statement Effect Allow Action sqs ReceiveMessage sqs DeleteMessage sqs GetQueueAttributes Resource Ref queueusersArn With that we follow the least privileged principle and don t give lambda access to all resources This wasn t possible before because Amplify wouldn t recognize it Now we see that the IAM policy is restricted on this one resource Now we can go to SQS send a message and see that the lambda was executed successfully The video shows it as well but can t be embedded right now ‍ ️ SummaryThat s it It seems a bit much at the beginning but with CloudFormation and Amplify you are very flexible in how to add and connect different resources Here is a short summary of the steps needed to do Custom resource in backend configFolders amp CloudFormation for custom resourcePass parameter from SQS to lambda from backend configAdjust CloudFormation template in lambda to use the parameterIf you want to know more about serverless AWS and building SaaS products on the cloud follow my Twitter References navvabian how to add an sqs queue to your amplify cli bootstrapped project cbced 2021-11-04 15:33:41
海外TECH DEV Community Blockchain for Beginners https://dev.to/josh4324/blockchain-for-beginners-5bc0 Blockchain for Beginners What is Blockchain Blockchain is a digital chain of blocks where every block records information about a recent transaction The chain simply refers to the fact that every new block is added to the current chain of blocks The data on the blocks is permanent and not reversible It is a register or ledger of digital records The most popular use case currently is for storing transaction data What is Cryptocurrency Cryptocurrencies are digital or virtual currency that is protected by cryptography making counterfeiting and double spending impossible The first and most popular cryptocurrency which uses blockchain technology is Bitcoin Bitcoin s main use case is for transactions outside the traditional financial system Things like borderless money transfers come to mind Another popular cryptocurrency is Ethereum which also uses blockchain technology Unlike bitcoin Ethereum was not created with a specific purpose in mind and it allows developers to create decentralized applications known as Dapps Blockchains can be centralized or decentralized decentralized blockchains are immutable which means data entered can not be changed no single person or group also has control All these records on a decentralized blockchain are publicly available The blocks are a kind of database that stores the records The chain simply refers to the fact that every new block is added to the current chain of blocks The data on the blocks is permanent and not reversible How does Blockchain work We re used to banks keeping track of our money which is why we can receive our bank statements at any time but the blockchain is controlled and managed by a network of computers that anybody can join These computer networks are referred to as nodes Their main job is to ensure that the transaction is genuine As a result all of these nodes or computer networks compete to authenticate the transaction s authenticity There is a reward for the node or machine that confirms the authenticity of the transaction This is referred to as mining How does the nodes or network of computer confirm the validity of the transaction This is done through what is known as a consensus mechanism What is a consensus mechanism This is the way the blockchain system achieves the necessary agreement on a single value in this case the confirmation of a transaction There are currently several consensus mechanisms but we would look at the most popular two Proof of WorkProof of Stake Proof of WorkThis requires the network of computers to solve very difficult equations to confirm the validity of the transaction It requires participants to prove that work is done and gives them the right to add a new transaction to the blockchain The first participant that can solve the equation correctly will be the one to get the reward for the mining An example of a cryptocurrency using this is Bitcoin Proof of StakeThis requires participants to hold or stake coins for them to get the right to validate transactions the more coins the user holds or stakes the more chances the participants have to be chosen to validate the transaction and get the reward for mining An example of a cryptocurrency using this is Ethereum What does the bitcoin transaction process look like A new transaction is entered i e sending bitcoin or buying bitcoin The transaction is entered into a node or network of computers The participants compete on solving a difficult equation and the first to solve the equation confirms the validity of the transaction and gets the mining reward Once the transaction is confirmed it is added to the block The block is added to the chain The transaction is complete This article is eye opening and does not contain everything about blockchain I hope to write more about it in the future Thank you for taking the time to read 2021-11-04 15:33:35
海外TECH DEV Community 7 best practices for building containers https://dev.to/leefrost/7-best-practices-for-building-containers-2lf7 best practices for building containersDevelopment was always a way of evolution The evolution of modern programming development brings a lot of techniques and requirements its hard to imagine today s programming without high level frameworks containers cloud computing or special data storages even if they are not necessary Working with some of them I would like to share small notes about the containerization especially with Docker containers best practices for building containersKubernetes Engine is a great place to run your workloads at scale But before being able to use Kubernetes you need to containerize your applications You can run most applications in a Docker container without too much hassle However effectively running those containers in production and streamlining the build process is another story There are a number of things to watch out for that will make your security and operations teams happier This post provides tips and best practices to help you effectively build containers Package a single application per containerA container works best when a single application runs inside it This application should have a single parent process For example do not run PHP and MySQL in the same container it s harder to debug Linux signals will not be properly handled you can t horizontally scale the PHP containers etc This allows you to tie together the lifecycle of the application to that of the container Properly handle PID signal handling and zombie processesKubernetes and Docker send Linux signals to your application inside the container to stop it They send those signals to the process with the process identifier PID If you want your application to stop gracefully when needed you need to properly handle those signals Optimize for the Docker build cacheDocker can cache layers of your images to accelerate later builds This is a very useful feature but it introduces some behaviors that you need to take into account when writing your Dockerfiles For example you should add the source code of your application as late as possible in your Dockerfile so that the base image and your application s dependencies get cached and aren t rebuilt on every build Take this Dockerfile as example FROM python COPY my code srcRUN pip install my requirementsYou should swap the last two lines FROM python RUN pip install my requirementsCOPY my code srcIn the new version the result of the pip command will be cached and will not be rerun each time the source code changes Remove unnecessary toolsReducing the attack surface of your host system is always a good idea and it s much easier to do with containers than with traditional systems Remove everything that the application doesn t need from your container Or better yet include just your application in a distroless or scratch image You should also if possible make the filesystem of the container read only This should get you some excellent feedback from your security team during your performance review Build the smallest image possibleWho likes to download hundreds of megabytes of useless data Aim to have the smallest images possible This decreases download times cold start times and disk usage You can use several strategies to achieve that start with a minimal base image leverage common layers between images and make use of Docker s multi stage build feature Properly tag your imagesTags are how the users choose which version of your image they want to use There are two main ways to tag your images Semantic Versioning or using the Git commit hash of your application Whichever your choose document it and clearly set the expectations that the users of the image should have Be careful while users expect some tags ーlike the “latest tagーto move from one image to another they expect other tags to be immutable even if they are not technically so For example once you have tagged a specific version of your image with something like “ you should never move this tag Carefully consider whether to use a public imageUsing public images can be a great way to start working with a particular piece of software However using them in production can come with a set of challenges especially in a high constraint environment You might need to control what s inside them or you might not want to depend on an external repository for example On the other hand building your own images for every piece of software you use is not trivial particularly because you need to keep up with the security updates of the upstream software Carefully weigh the pros and cons of each for your particular use case and make a conscious decision 2021-11-04 15:24:38
海外TECH DEV Community 40+ ReactJS Projects for Beginners – Easy Ideas to Get Started Coding [Beginners - Advance] https://dev.to/jdkz/40-reactjs-projects-for-beginners-easy-ideas-to-get-started-coding-beginners-advance-3886 ReactJS Projects for Beginners Easy Ideas to Get Started Coding Beginners Advance If you have decided to build your career in NodeJS development we have gathered a list of nodeJS projects for beginners for all node enthusiasts to build highly scalable web applications These best nodeJS projects for beginners will help you gain knowledge about core node concepts train your skill level build a superb work portfolio and get hired for your dream job When you start building your first projects it s highly recommended for beginners in coding to create a repository for each of your projects so you will be able to learn git and show your coding expertise to future employers  Read More ReactJS Projects for Beginners Easy Ideas to Get Started Coding 2021-11-04 15:12:29
海外TECH DEV Community 7 Ways To Improve Your Logic In Programming https://dev.to/unitybuddy/7-ways-to-improve-your-logic-in-programming-55io Ways To Improve Your Logic In ProgrammingHello buddies Programming in itself is a very beautiful art Sometimes we may face some problems while trying to program but we can definitely overcome them Most of the programmers beginner programmers are having problems with the Programming Logic part They know the syntax modules to use and everything but can t figure out the problem in the right way So in this article we will see techniques to improve your logic or we can say Problem Solving Think to solveIf you think that you can t do it Then no one else can help you to develop your logic Programming is all about finding the right solution to the problem With the help of programming we split the big problems into smaller ones then we try to solve the small parts Apart from writing the whole programming on paper or word document All you need to do is write the pseudo codes of the programs to solve the problem If you are a beginner to the programming language Then it would help if you tried to start from solving the easy problems then the intermediate ones and then the complex ones But never stop yourself to solve the issues The more complex issues you try to solve the more you improve your logical thinking in programming It will help you do get a solid answer on how to improve logical thinking in programming PracticePractice is a crucial part of our life If we want to have a better command over anything then we need to practice the same thing again and again And at some point we get the perfection on something The same rule applies to program logic We know that programming is not that easy it requires passion and determination So why do you need to practice to improve your logic in programming The most straightforward answer to this question is to try to practice some prewritten algorithms An algorithm is the set of operations that are used to solve a predefined problem There are millions of algorithms in the world to solve easy to complex problems It would be best if you practiced some of the most used algorithms to improve your programming logic In this way you get an idea of how to improve logical thinking in coding Pen and Paper ApproachAfter seeing any problem we generally start coding the same on our IDE So when we are asked to write code on paper in interviews we fail to do so Always try to write the pseudo code or algorithm of the code before implementing them It will help you in writing the code and next time whenever you approach a similar problem you will be able to recollect more easily It will also help you in getting syntactically strong Puzzle SolvingIn many coding competitions problems are not directly asked based on a concept Instead it generally involves a story woven around it and we have to figure out the logic for solving the program In such cases sometimes we are unable to solve the problem Try solving puzzles such as Sudoku to develop your logic and thinking ability because programming is nothing but solving complex problems with the help of good logic Find a Programmer s CommunitySometimes we get bored while solving the problems by ourselves with no one to teach or guide us In such cases you can always try discussing solutions or complex questions with fellow programmers and friends This will always help you in finding new logic for the same problem and will help you in optimizing your code This will also improve your confidence and communication skills Play GamesSome of the games require plenty of logic You can play games Chess and other similar logical games to improve your logic Most of the pc games help you to sharpen your logical thinking In my opinion you should play games for at least hour every day It will help you to do your brain exercise The games are helping the programmer to develop their logical thinking for programming If you want to learn CSS by playing some games Suprabha Supi has a list of games Read Books and solve ExamplesHaving a programming book is also beneficial for the students You can find plenty of solved examples in the programming books that can help you improve your logic in programming The basics of programming can never be changed and you can check your programming logic with the help of the programming books It would help if you also tried to solve all the examples with your efforts and logic In this way you can improve your logic in programming So buddies that s all for now See you later and Happy Coding References 2021-11-04 15:12:01
Apple AppleInsider - Frontpage News Rare Apple-I computer going up for auction with $200,000 starting bid https://appleinsider.com/articles/21/11/04/rare-apple-i-computer-going-up-for-auction-with-200000-starting-bid?utm_medium=rss Rare Apple I computer going up for auction with starting bidA rare Apple I computer is going up for sale at a small California auction house later in November with a starting bid of Credit John MoranThe Apple I which is being put up for auction by John Moran Auctioneers and Appraisers was hand build by Steve Wozniak The specific model in question is known as the Chaffey College Apple I because it was purchased by an electronics professor at the school in and sold to a student Read more 2021-11-04 15:19:20
海外TECH Engadget Blue Origin loses lawsuit over NASA's SpaceX lunar lander contract https://www.engadget.com/blue-origin-loses-nasa-lawsuit-over-spacex-151101253.html?src=rss Blue Origin loses lawsuit over NASA x s SpaceX lunar lander contractBlue Origin has failed in its lawsuit against NASA over SpaceX s lunar lander contract CNBCreports the Federal Court of Claims has ruled against Blue Origin dismissing the company s claims While the opinion is currently sealed Blue Origin s case had revolved around accusations NASA ignored quot key flight safety requirements quot when handing the Human Landing System to SpaceX The opinion will be publicly available sometime after November th when both sides of the lawsuit are expected to supply redactions NASA put SpaceX s work on hold following the lawsuit but efforts should resume November th Blue Origin previously challenged the contract through the Government Accountability Office only to be rejected in July leading Jeff Bezos outfit to respond with a lawsuit The firm even tried drastically undercutting SpaceX with a billion bid arguing at the time that NASA has historically awarded contracts to multiple partners to make sure a mission launches on time The outcome isn t surprising given NASA s own skepticism The agency believed Blue Origin was gambling with its initial billion proposal on flawed assumptions that NASA would both haggle down the price and receive the funding needed to cover a more expensive bid Blue Origin disagreed with the assessment and felt it made a good offer but that still suggests NASA preferred SpaceX for its lower pricing instead of any unfair criteria In a statement Blue Origin portrayed the ruling as a partial victory The case allegedly quot highlighted the important safety issues quot in HLS procurement and showed the need for an quot unprejudiced quot process that spurred competition and included backup systems The company was also keen to tout its continued involvement with the Artemis program including development of lunar resource systems robotics and sensors It s not clear if Blue Origin will challenge the outcome we ve asked about this but we wouldn t be shocked if there was an appeal You can read the full statement below Our lawsuit with the Court of Federal Claims highlighted the important safety issues with the Human Landing System procurement process that must still be addressed Returning astronauts safely to the Moon through NASA s public private partnership model requires an unprejudiced procurement process alongside sound policy that incorporates redundant systems and promotes competition Blue Origin remains deeply committed to the success of the Artemis program and we have a broad base of activity on multiple contracts with NASA to achieve the United States goal to return to the Moon to stay We are fully engaged with NASA to mature sustainable lander designs conduct a wide variety of technology risk reductions and provide Commercial Lunar Payload Services We are also under contract with NASA to develop in situ resource utilization technology lunar space robotics and lunar landing sensor collaboration including testing on New Shepard We look forward to hearing from NASA on next steps in the HLS procurement process 2021-11-04 15:11:01
海外TECH Network World 10 limitations of MU-MIMO in Wi-Fi https://www.networkworld.com/article/3639537/10-limitations-of-mu-mimo-in-wi-fi.html#tk.rss_all limitations of MU MIMO in Wi Fi Multi user MIMO allows multiple Wi Fi devices to simultaneously receive multiple data streams For example a wireless access point AP can send data to four different Wi Fi devices at the same time MU MIMO can greatly increase the network s throughput and is a real asset for high density networks MIMO which stands for multiple input multiple output technology has evolved over the years since the debut of the single user mode SU MIMO which was introduced more than a decade ago with the n wireless standard Learn more about MU MIMO and Wi Fi To read this article in full please click here 2021-11-04 15:23:00
海外科学 NYT > Science Blue Origin Loses Legal Fight Over SpaceX’s NASA Moon Contract https://www.nytimes.com/2021/11/04/science/blue-origin-nasa-spacex-moon-contract.html Blue Origin Loses Legal Fight Over SpaceX s NASA Moon ContractA federal judge rejected the argument by Jeff Bezos rocket company that NASA unfairly awarded a lunar lander contract to Elon Musk s firm 2021-11-04 15:58:49
海外科学 NYT > Science A New 10-Year Plan for the Cosmos https://www.nytimes.com/2021/11/04/science/astronomy-decadal-survey-telescope.html earth 2021-11-04 15:46:06
海外科学 NYT > Science He Can’t Cure His Dad. But a Scientist’s Research May Help Everyone Else. https://www.nytimes.com/2021/11/04/health/sharif-tabebordbar-gene-therapy.html He Can t Cure His Dad But a Scientist s Research May Help Everyone Else The muscle wasting disease that has debilitated Sharif Tabebordbar s father motivated a life in science that led to an important medical discovery 2021-11-04 15:18:29
海外科学 NYT > Science Did Covid Change How We Dream? https://www.nytimes.com/2021/11/03/magazine/pandemic-dreams.html question 2021-11-04 15:43:37
海外TECH WIRED The Guide for the Next Decade of Space Research Just Dropped https://www.wired.com/story/the-guide-for-the-next-decade-of-space-research-just-dropped The Guide for the Next Decade of Space Research Just DroppedThe Astro Decadal Survey s top priorities include new telescopes the search for habitable exoplanets and far infrared and x ray probe missions 2021-11-04 15:41:04
金融 RSS FILE - 日本証券業協会 株券等貸借取引状況(週間) https://www.jsda.or.jp/shiryoshitsu/toukei/kabu-taiw/index.html 貸借 2021-11-04 15:30:00
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金融 RSS FILE - 日本証券業協会 会長記者会見−2021年− https://www.jsda.or.jp/about/kaiken/kaiken_2021.html 記者会見 2021-11-04 16:47:00
金融 金融庁ホームページ 金融審議会「資金決済ワーキング・グループ」(第2回)を開催します。 https://www.fsa.go.jp/news/r3/singi/20211104shikinkessai_wg2.html 金融審議会 2021-11-04 17:00:00
金融 金融庁ホームページ 金融安定理事会による「ノンバンク金融仲介(NBFI)の強靭性向上:進捗報告書」を掲載しました。 https://www.fsa.go.jp/inter/fsf/20211104/20211104.html 金融安定理事会 2021-11-04 17:00:00
金融 金融庁ホームページ プレス・リリース「バーゼル銀行監督委員会は国際サステナビリティ基準審議会(ISSB)の設立を支持」について公表しました。 https://www.fsa.go.jp/inter/bis/20211104/20211104.html 設立 2021-11-04 17:00:00
金融 金融庁ホームページ NGFS(気候変動リスク等に係る金融当局ネットワーク)による 「NGFSグラスゴー宣言」について掲載しました。 https://www.fsa.go.jp/inter/etc/20211104/20211104.html 気候変動 2021-11-04 17:00:00
金融 金融庁ホームページ プレス・リリース「気候変動への対応を強化するための保険監督者国際機構(IAIS)の取り組み」を掲載しました。 https://www.fsa.go.jp/inter/iai/20211104.html 保険監督者国際機構 2021-11-04 17:00:00
金融 ニュース - 保険市場TIMES 損保ジャパン、スマート治療室プロジェクトと実証実験を開始 https://www.hokende.com/news/blog/entry/2021/11/05/010000 損保ジャパン、スマート治療室プロジェクトと実証実験を開始医療の安全性向上のために損害保険ジャパン株式会社は月日、SOMPOリスクマネジメント株式会社とともに「SCOT」の実証実験を開始すると発表した。 2021-11-05 01:00:00
ニュース ジェトロ ビジネスニュース(通商弘報) ベトナム、10月の生産活動に回復の兆し https://www.jetro.go.jp/biznews/2021/11/43b56229872722e6.html 回復の兆し 2021-11-04 15:40:00
ニュース ジェトロ ビジネスニュース(通商弘報) 湖北省、ナイトタイムエコノミー消費刺激策を発表 https://www.jetro.go.jp/biznews/2021/11/279973dd90e79b95.html 湖北省 2021-11-04 15:30:00
ニュース ジェトロ ビジネスニュース(通商弘報) 世界銀行が「Africa’s Road to COP26」ウェビナーを開催 https://www.jetro.go.jp/biznews/2021/11/b8b935646078b7cc.html africasroadtocop 2021-11-04 15:20:00
ニュース ジェトロ ビジネスニュース(通商弘報) 東北3省の成長率、前年同期比では好転も、足元では減速 https://www.jetro.go.jp/biznews/2021/11/61f14debb29b3c50.html 前年同期 2021-11-04 15:10:00
ニュース BBC News - Home Tory MP Owen Paterson resigns amid standards row https://www.bbc.co.uk/news/uk-politics-59167783?at_medium=RSS&at_campaign=KARANGA cruel 2021-11-04 15:49:57
ニュース BBC News - Home David Fuller: Man admits 1987 murders and abusing corpses https://www.bbc.co.uk/news/uk-england-kent-59167648?at_medium=RSS&at_campaign=KARANGA admits 2021-11-04 15:30:35
ニュース BBC News - Home Teens found guilty of murdering Keon Lincoln https://www.bbc.co.uk/news/uk-england-birmingham-59167031?at_medium=RSS&at_campaign=KARANGA handsworth 2021-11-04 15:35:21
ニュース BBC News - Home Claudia Webbe: MP convicted of harassment gets suspended sentence https://www.bbc.co.uk/news/uk-england-leicestershire-59162007?at_medium=RSS&at_campaign=KARANGA friend 2021-11-04 15:52:09
ニュース BBC News - Home England recall Rashford & Bellingham for World Cup qualifiers https://www.bbc.co.uk/sport/football/59163005?at_medium=RSS&at_campaign=KARANGA England recall Rashford amp Bellingham for World Cup qualifiersMarcus Rashford and Jude Bellingham are recalled to the England squad for this month s World Cup qualifiers with Albania and San Marino 2021-11-04 15:31:38
ニュース BBC News - Home What is net zero and how are the UK and other countries doing? https://www.bbc.co.uk/news/science-environment-58874518?at_medium=RSS&at_campaign=KARANGA uk 2021-11-04 15:31:33
北海道 北海道新聞 原油追加増産見送りか OPECプラス、現行枠組み維持 https://www.hokkaido-np.co.jp/article/608100/ 石油輸出国機構 2021-11-05 00:17:00
北海道 北海道新聞 ボクシング、岡沢、坪井が決勝へ 男子世界選手権 https://www.hokkaido-np.co.jp/article/608059/ 世界選手権 2021-11-05 00:02:21
北海道 北海道新聞 新たに23カ国が脱石炭表明 COP26、日本に逆風の恐れ https://www.hokkaido-np.co.jp/article/608093/ 国連気候変動枠組み条約 2021-11-05 00:01:00

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