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#corporateinnovation #corporateventuring #yoga #textileindustry #garmentmanufacturing #fitnessindustry #workoutfromhome #wellness #crossborder #supplychainsustainability #esgstrategy #傳產創新
同時也有1部Youtube影片,追蹤數超過0的網紅CarDebuts,也在其Youtube影片中提到,DUBAI — The King is returning, stronger than ever. Chevrolet today introduced the 2019 Corvette ZR1, a supercar that pushes Corvette’s performance le...
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supply chain manager 在 矽谷牛的耕田筆記 Facebook 的最佳解答
ref: https://dlorenc.medium.com/improving-tofu-with-transparency-da674aa2879d
本篇文章要介紹的是一種名為 TOFU 的認證機制,其全名為 Trust-On-First-Use.
要探討這個機制前,作者先列舉一個情境
假設你人要到火車站去找一個名為 Alice 的人交換手提箱,你要如何於火車站正確的找到 Alice?
# Nothing
最基本的情況就是你看到每個人都詢問,你是不是 Alice,但是任何人都可以說謊假裝自己是 Alice,因此惡意攻擊者跟 Alice
一樣都可以輕鬆回答你「我就是 Alice」,顯而易見這種機制基本上沒有辦法幫助我們找到 Alice,也沒有辦法分辨到底眼前的人是惡意攻擊者還是 Alice。
一種改善的機制就是 PKI (Public Key Infrastructure),該機制的概念是
1. 有一個第三方服務會發行相關的 ID 證件,該 ID 證件難以偽造 (譬如 Certificate Authorities)
2. 你信賴這個第三方服務
所以你到火車站之後,每遇到一個人就要求對方出示其 ID,並且請第三方服務幫忙驗證這個 ID 證件是否合法,透過這種概念來找到到底誰是 Alice。
這種機制運作起來沒有問題,唯一的問題就是找到一個可信任的第三方服務相對複雜且困難。
有沒有一種相對簡單又有點有效的機制? 就是本篇要探討的 TOFU
假設情境改成,今天需要頻繁的到火車站去找 Alice 交換行李箱,這件事情會重複非常多次。這種情境下,我們可以
記住第一次遇到號稱自己是 Alice 的那個人,接下來每次都找該人交易。
簡單來說就是,相信第一次遇到的人,並且記住該人的狀態與面貌,接下來每次交易都直接尋找上次熟悉的面孔。
網路世界來說,一個非常知名使用 TOFU 的軟體就是 SSH。
SSH 使用者第一次連線到遠方 Server 時會相信自己連接到的是正確的 Server,同時將 Server 本身的指紋資訊給存入到本地快取。
因此接下來每次連接到該 SSH 的時候,就直接比較 Server 的指紋是否一致來確定是否連線。
這個機制聽起來很可怕,不過對於這種「很難預測第一次連線的 Server 是誰的狀態」的情境是滿堪用的,畢竟不容易一開始就被偽裝攻擊。
另外一個使用 TOFU 機制的概念就是 supply-chain security,假設你要透過 Packager Manager 來使用不同版本的 Package
這種情境下系統要如何信任每次抓到的 Package 都是正確的?
透過 TOFU 的機制將每個 Package 的 Hash 值都存放 local,這種情況下就可以去比對第二次,第三次下載的內容是否一致。
不過對於 CI 環境下,要一直維持 local cache 實在不容易,因此 Trust-On-First-Use 就會演化成另外一種 Trust-On-Every-Use.
文章後續還介紹 golang 生態系的 go get 是採用何種機制去信任每次下載的 library,對於這篇文章有興趣的不要錯過
supply chain manager 在 Scholarship for Vietnamese students Facebook 的最讚貼文
[Tổng hợp] Top chương trình thực tập chất lượng và hay ho
Tuần này chị tổng hợp những chương trình thực tập đang được đón chào nhất trong năm, với mức lương hấp dẫn và hứa hẹn kinh nghiệm giắt đầy túi sau khi kết thúc hehe. Lưu lại bài viết để tiện theo dõi cả nhà nhé!
1. Okinawa Institute of Science and Technology - OIST Research Internship (Nhật Bản)
- Lĩnh vực: Integrative Community, Energy Unit, Non-linear Equilibrium, Physics Unit, Quantum Systems, Evolutionary Genomics, Fluid Mechanics, Computational Neuroscience, Biological Systems, v.v
- Đối tượng: sinh viên từ năm 3 đại học trở lên, hoặc đang học thạc sĩ, hoặc vừa tốt nghiệp với background liên quan
- Thời gian: 2-6 tháng
- Tài trợ: vé máy bay + chi phí đi lại + chi phí sinh hoạt + chỗ ở + bảo hiểm (tất tần tật luôn)
- Deadline: 15.10.2021
- Link: https://admissions.oist.jp/oist-research-internship-program-description
2. Asian Development Bank Paid Internship 2021
- Lĩnh vực: nhiều vị trí, như Finance, Human and social development, natural resources & agriculture, v.v
- Thời gian: 8-26 tuần
- Đối tượng: ứng viên có kinh nghiệm với các dự án của ADB, tiếng Anh tốt, background liên quan
- Thực tập có hỗ trợ lương
- Deadline: 15.09.2021
- Link: https://www.adb.org/work-with-us/careers/internship-program#accordion-0-10
3. Microsoft Internship Program 2021 (Mỹ, Canada)
- Lĩnh vực:
- • Engineering (Software Engineer, Program Manager, Product Planning, Programmer Writer, Technical Writer, Services Engineering)
* Hardware Engineering
* UX Design
* Supply Chain
* Data and Applied Science
* IT Operations
* Finance
* Marketing
* Sales
* Services (Consultant, Support Engineer, Technical Account Manager, Technical Evangelist)
- Đối tượng: sinh viên từ bậc cử nhân đến tiến sĩ
- Tài trợ: thực tập có lương và hỗ trợ chi phí di chuyển
- Deadline: quanh năm
- Link: https://careers.microsoft.com/students/us/en/usuniversityinternship
4. OECD Internship 2021-22 (Pháp)
- Lĩnh vực: vô số lĩnh vực, xem chi tiết link bên dưới nha
- Thời gian: 1-6 tháng
- Đối tượng: sinh viên đại học, sau đại học toàn thời gian, có kỹ năng IT, thạo tiếng Anh/ tiếng Pháp…
- Tài trợ: hỗ trợ hàng tháng + hỗ trợ làm visa + cơ hội được renew tiếp trong 1 năm
- Deadline: 01.03.2022
- Link: https://www.oecd.org/careers/internship-programme/
5. Institute of Science and Technology - IST Scientific Internships 2021-22 (Áo)
- Lĩnh vực: Biology, computer science, data science & scientific computing, physics, mathematic science, neuroscience
- Thời gian: 1 năm
- Đối tượng: sinh viên cử nhân, thạc sĩ với chuyên ngành liên quan
- Tài trợ: lương hàng tháng + bảo hiểm y tế + khoá học tiếng + tiền đi lại + một số hỗ trợ khác
- Deadline: mở quanh năm
- Link: https://phd.pages.ist.ac.at/scientific-internships/
❤ Tag và chia sẻ thông tin đến bạn bè em nhé ❤
#HannahEd #duhoc #hocbong #sanhocbong #scholarshipforVietnamesestudents
supply chain manager 在 CarDebuts Youtube 的最佳貼文
DUBAI — The King is returning, stronger than ever.
Chevrolet today introduced the 2019 Corvette ZR1, a supercar that pushes Corvette’s performance legacy with the highest power, greatest track performance and most advanced technology in its production history.
“I’ve never driven a Corvette like this before, and nobody else has either, because there’s never been one like this before,” said Mark Reuss, executive vice president, Global Product Development, Purchasing and Supply Chain. “Its unprecedented performance puts all other global supercars on notice that the ZR1 is back.”
The Corvette ZR1’s exclusive LT5 supercharged engine, which is rated at an SAE-certified 755 horsepower (563 kW) and 715 lb-ft of torque (969 Nm), is establishing a new benchmark in performance. Further, the ZR1 elevates Corvette’s track capability with two wind tunnel-honed aerodynamics packages, including an available High Wing that provides an estimated 950 pounds of downforce.
Most powerful ever
The ZR1’s LT5 6.2L V-8 engine advances Corvette’s supercharging legacy, which began with the 2009 sixth-generation ZR1 and continued with the 2015 seventh-generation Z06. The LT5 delivers the highest output ever for a Chevrolet production vehicle, thanks in part to a new, more-efficient intercooled supercharger system that offers 52 percent more displacement than the Z06’s LT4 supercharger. GM’s first dual-fuel-injection system, which employs primary direct injection and supplemental port injection, helps the LT5 achieve its record output.
Seven-speed manual and eight-speed paddle-shift automatic transmissions are available with the LT5. It’s the first time an automatic transmission has been offered in a ZR1.
Fastest ever
The 2019 Corvette ZR1’s aggressive appearance is driven by function, contributing to its distinction as the fastest production Corvette to date.
An all-new front fascia is designed to channel air for propulsion-system and drivetrain cooling, with four new radiators bringing the heat-exchanger total to 13. A special carbon-fiber “halo” hood is open in the middle to clear the LT5 engine’s supercharger/intercooler assembly. Additional features, including aero packages with stanchion-mounted wings, help push the ZR1 harder onto the track for more confident handling and faster lap times. Top speed of the ZR1 is over 210 mph.
“As the highest-performing Corvette ever, the ZR1’s design supports its capability in every way,” said Kirk Bennion, Exterior Design manager. “The new wings, for example, help generate more downforce without adding drag, enhancing road holding and top speed.”
The ZR1 will offer two aero packages: a standard rear Low Wing, which delivers the highest top speed and helps generate up to 70 percent more downforce than the Z06’s base aero package, and an available two-way-adjustable High Wing that offers maximum downforce on the track for the quickest lap times — about 60 percent more downforce than the Z06 with the available Z07 Performance Package. All models also feature a Chevrolet-first, downforce-enhancing front underwing.
The adjustable High Wing is part of the new ZTK Performance Package, which also includes a front splitter with carbon-fiber end caps, Michelin Pilot Sport Cup 2 summer-only tires, and specific chassis and Magnetic Ride Control tuning for greater cornering grip.
Both of the ZR1’s wings are tied into the chassis, like the Corvette Racing C7.R racecar, for strength and stability.
Sebring Orange Design Package
The Corvette ZR1 introduced today also debuted a dynamic, available Sebring Orange Design Package. Centered on its Sebring Orange Tintcoat exterior color, the package also includes orange brake calipers, orange rocker and splitter accent stripes, orange seat belts, orange interior stitching and unique, bronze aluminum interior trim.
The new design package complements the Corvette ZR1’s tradition of offering maximum performance with refinement and design distinction. The driver-focused, well-appointed cockpit includes standard leather-trimmed seats, with sueded microfiber inserts offered. Heated and vented Napa leather-trimmed seating is also available, as well as a carbon fiber-rimmed steering wheel, competition sport seats, Performance Data Recorder, Bose premium audio system and more.
The 2019 Corvette ZR1 goes on sale next spring, poised to take on the world’s best.
It’s good to be the King.
supply chain manager 在 Supply Chain Management - YouTube 的推薦與評價
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