| AWS |
AWS Cloud Enterprise Strategy Blog |
Designing a Cloud Center of Excellence (CCOE) |
https://aws.amazon.com/blogs/enterprise-strategy/designing-a-cloud-center-of-excellence-ccoe/
|
Many companies have found that a cloud center of excellence CCOE can accelerate their migrations to the cloud and broader digital transformations These CCOEs take many forms which is appropriate because each company has unique challenges to overcome Nevertheless there are certain patterns and antipatterns for using a CCOE In this blog post I ll try |
2023-09-25 19:42:21 |
| 海外TECH |
AppleInsider - Frontpage News |
Apple's FineWoven magnetic band now available for preorder |
https://appleinsider.com/articles/23/09/25/apples-finewoven-magnetic-band-now-available-for-preorder?utm_medium=rss
|
Those interested in buying a FineWoven magnetic band for their Apple Watch can purchase one from the Apple Store starting Monday ーbut they won t be shipping until late October FineWoven magnetic link band Image Credit AppleWhile the FineWoven magnetic link band may have leaked hours before September s Apple Event it wasn t available for purchase until now Read more |
2023-09-25 19:11:53 |
| 海外TECH |
Engadget |
OSIRIS-REx used a Tesla-esque navigation system to capture 4.5 billion-year-old regolith |
https://www.engadget.com/osiris-rex-used-a-tesla-esque-navigation-system-to-capture-45-billion-year-old-regolith-192132417.html?src=rss
|
NASA s pioneering OSIRIS REx mission has successfully returned from its journey to the asteroid Bennu The robotic spacecraft briefly set down on the celestial body in a first of its kind attempt by an American space agency to collect pristine rock samples before alighting and heading back to Earth on a three year roundtrip journey The samples impacted safely on Sunday in the desert at the DoD s Utah Test and Training Range and Dugway Proving Grounds Even more impressive the spacecraft performed its Touch and Go Sample Acquisition Mechanism TAGSAM maneuver autonomously through the craft s onboard Natural Feature Tracking NFT visual navigation system ーanother first Engadget recently sat down with Guidance Navigation and Control Manager at Lockheed Martin Dr Ryan Olds who helped develop the NFT system to discuss how the groundbreaking AI was built and where in the galaxy it might be heading next ASSOCIATED PRESSThe OSIRIS REx Origins Spectral Interpretation Resource Identification and Security Regolith Explorer is America s first attempt at retrieving physical samples from a passing asteroid Japan has already done it twice Bennu being roughly million miles from Earth when OSIRIS first intercepted it presented far more of a challenge in landing than previous larger targets like the also not particularly easy to reach targets of the moon or Mars There s so many different factors in matching the myriad velocities and trajectories involved in these landing maneuvers Olds told Engadget So many little details A lot of what we re doing is based on models and if you have little error sources in your model that aren t being taken into account then those can lead to big mistakes So it s really really important to make sure you re modeling everything accurately In fact after OSIRIS REx rendezvoused with Bennu in the spacecraft spent more than days circling the asteroid and capturing detailed images of its surface from which the ground control team generated digital terrain models It takes a lot of research to make sure you ve got all the effects understood Olds said We did a lot of that with our work on Natural Feature Tracking to make sure we understood the gravity field around the asteroid Even little things like the spacecraft s heaters turning on and off ーeven that produces a very very tiny propulsive effect because you re radiating heat and on really small bodies like Bennu those little things matter NASA Goddard University of ArizonaSince the asteroid revolved around its axis the surface transitioning from sunlit side to dark and back again every four hours the OSIRIS team had to design all of our TAG trajectories so that we were flying over the lit portion of the asteroid Olds said We didn t want the spacecraft to ever miss the maneuver and accidentally drift back into the eclipse behind the asteroid The NFT system much like a Tesla relies primarily on an array of visual spectrum cameras to know where it is in space with a LiDAR system operating as backup LiDAR was initially going to be the primary method of navigating given the team s belief during the planning phase that the surface of Bennu resembled a sandy beach like environment We weren t expecting to have any hazards like big boulders Olds said So the navigation system was really only designed to make sure we would land within about a meter area and LiDAR was the system of choice for that But quickly once we got to Bennu we were really surprised by what it looked like just boulders everywhere hazards everywhere The team had difficulty spotting any potential landing site with a radius larger than eight meters which meant that the LiDAR system would not be precise enough for the task They racked their brains and decided to switch over to using the NFT system which offered the ability to estimate orbital state in three dimensions This is helpful in knowing if there s a boulder in the lander s descent path The spacecraft ultimately touched down within just cm of its target We did have some ground based models from radar imagery Olds said But that really only gave us a very kind of bulk shape ーit didn t give us the detail OSIRIS s months of flyovers provided that missing granularity in the form of thousands of high resolution images Those images were subsequently transmitted back to Earth where members of the OSIRIS REx Altimetry Working Group AltWG processed analyzed and reassembled them into a catalog of more than terrain reference maps and trained a D shape model of the terrain The NFT system relied on these assets during its TAG maneuver to adjust its heading and trajectory That full maneuver was a four part process starting at the safe home terminator orbit of Bennu The spacecraft moved onto the daylight side of the asteroid to a position about m above the surface dubbed Checkpoint The third maneuver shifted OSIRIS REx to Matchpoint m above the surface so that by the time it finished descending and came into contact with the asteroid it would be traveling at just cm s At that point the ship switched from visual cameras which were less useful due to kicked up asteroid dust to using its onboard accelerometer and the delta v update DVU algorithm to accurately estimate its relative position In its fourth and final maneuver was the craft ーand its approximately eight oz g cargo ーgently backed away from the billion year old space rock ASSOCIATED PRESSSunday s touchdown was not the end of the NFT s spacefaring career An updated and upgraded version of the navigation system will potentially be aboard the next OSIRIS mission OSIRIS APEX Next year we re going to start hitting the whiteboard about what we want this updated system to do We learned a lot of lessons from the primary mission Olds notes that the asteroid s small stature made navigation a challenge because of all those little tiny forces I was telling you about That caused a lot of irritation on the ground so we re definitely wanting to improve the system to be even more autonomous so that future ground crews don t have to be so involved The OSIRIS spacecraft is already en route to its APEX target the foot wide Apophis asteroid which is scheduled to pass within just miles of Earth in NASA plans to put OSIRIS into orbit around the asteroid to see if doing so affects the body s orbit spin rate and surface features This article originally appeared on Engadget at |
2023-09-25 19:21:32 |
| 科学 |
NYT > Science |
Nuclear Fusion Breakthrough Gets a Bigger Burst of Laser Energy |
https://www.nytimes.com/2023/09/25/science/nuclear-laser-fusion-nif.html
|
Researchers at the National Ignition Facility during a July firing of lasers improved on a December result but also ended up with duds in other experiments |
2023-09-25 19:30:20 |
| 科学 |
NYT > Science |
In Hospitals, Viruses Are Everywhere. Masks Are Not. |
https://www.nytimes.com/2023/09/23/health/hospitals-masking-mandates.html
|
Amid an uptick in Covid infections administrators staff and patients are divided over the need for masks in health care settings |
2023-09-25 19:18:17 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【無料公開】「144職種」の年収ランキング！3位は平均713万円の製薬MR、1位は？ - Diamond Premiumセレクション |
https://diamond.jp/articles/-/329701
|
diamond,doda,premium |
2023-09-26 04:50:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【無料公開】大阪創業のメガ銀・生保・証券の“東京流出”を尻目に、あの銀行が見せる「大阪重視」 - Diamond Premiumセレクション |
https://diamond.jp/articles/-/329693
|
diamond,premium,セレクション |
2023-09-26 04:45:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
「人手不足の不満」を感じさせないリーダーが発揮している3つのスキル - トンデモ人事部が会社を壊す |
https://diamond.jp/articles/-/329384
|
人手不足,そのため,コミュニケーション |
2023-09-26 04:40:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
警備員が見たビル裏方スタッフ「暗黙の序列」、清掃・設備・管理…弱い立場は？【再編集】 - 中の人は見た！ |
https://diamond.jp/articles/-/328463
|
オフィスビル,スタッフ,ヒエラルキー |
2023-09-26 04:35:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
「考えが浅い人」の超残念なプレゼン、デキる上司はどうアドバイスする？ - 定番読書 |
https://diamond.jp/articles/-/328061
|
アドバイス,コンサルティング会社,プレゼンデキ |
2023-09-26 04:27:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【中央？ 青山学院？ 法政？】MARCH・3大学の法学部の雰囲気はどう違う - 大学図鑑！2024 有名大学82校のすべてがわかる！ |
https://diamond.jp/articles/-/329642
|
中央青山,march,パワーアップ |
2023-09-26 04:24:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
職場にいる「口数は少ないのにコミュ力の高い人」が持っているシンプルだけど強い特徴とは - 1秒で答えをつくる力 お笑い芸人が学ぶ「切り返し」のプロになる48の技術 |
https://diamond.jp/articles/-/329644
|
お笑い芸人,かまいたち,アレンジ |
2023-09-26 04:21:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【愛着障害の特徴】「親の愛情不足で育った人」が人間関係で失敗しがちな決定的理由 - 幸せになるには親を捨てるしかなかった |
https://diamond.jp/articles/-/329448
|
愛着障害,サバイバー,人間関係 |
2023-09-26 04:18:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
若手が成長しない会社に共通する「組織で使ってはいけない言い方」ワースト1は？ - 気づかいの壁 |
https://diamond.jp/articles/-/328834
|
おせっかい,さりげなく,ワースト |
2023-09-26 04:15:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
サウナVSお風呂VS岩盤浴 体が芯からあたたまるのはどれ？ - 医者が教える 究極にととのう サウナ大全 |
https://diamond.jp/articles/-/329042
|
エビデンス,サウナー,パフォーマンス |
2023-09-26 04:12:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【習い事】「子どもが習う環境」の選び方“3つのポイント” - 世界標準の子育て |
https://diamond.jp/articles/-/329476
|
グローバル人材,スタンダード,ポイント |
2023-09-26 04:09:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
なぜ「線状降水帯」で「集中豪雨」が起こるの？ SNSでも人気の雲研究者が教える - 読み終えた瞬間、空が美しく見える気象のはなし |
https://diamond.jp/articles/-/329607
|
線状降水帯,フォロワー,天使の梯子 |
2023-09-26 04:06:00 |
| 詳細記事 |
ダイヤモンド・オンライン - 新着記事 |
【神様が味方する人の習慣】 まわりに「魅力的な人たちが集まる人物」の共通点とは？ - ありがとうの奇跡――神様・人・モノが味方になる習慣 |
https://diamond.jp/articles/-/329376
|
いちばん,エッセンス,メッセージ |
2023-09-26 04:03:00 |
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