liquefied natural gas (LNG) portfolio optimization

Alessandro Agosta, Dumitru Dediu, Timo Leenman, and Marijn van Diessen, LNG portfolio optimization: Putting the business model to the test, McKinsey, April 12, 2021.

The analysis indicates that in third quarter 2020, traditional marketers saw a 47 percent decline in realized prices compared with third quarter 2019, whereas the portfolio optimizers saw a 31 percent decline in realized prices over the same period (Exhibit 3). Although there are some obvious short­comings in this comparison—for example, the declines could be due to different geographic presences or a time lag on indexation—the findings do suggest that in the gas industry, portfolio opti­mizers were less affected by the recent downturn.

第三代半導體

林宏達，什麼是第三代半導體？一文看懂車用、通訊、充電通吃的殺手級應用，財訊，2021-04-20

(高中) 數學與資訊工程

馬來西亞的學校提案，準備今年 5 月，開授相關線上演講，以便吸引高中生就讀資訊相關科系。去年12月中開校內協調會的時候，學校長官指派我，負責「數學與資訊工程 」。 月底到了，忙著提科技部計畫和撰寫研究的程式，但是，各種點子不斷地進入我的腦袋裡，只好趕緊把它寫下來，不然半夜進入我的夢鄉，擾人清夢。花了兩天，寫下初稿；最近又多次修正，前後花了不下 20 小時，決定提前定稿 ，以便改作其他教學和研究事務。

後來想一想， 既然這是一個有意義的工作，就準備把他錄成影片，並上傳 YouTube，以幫助有需要的年輕人。追求新知並傳授給學生，一直是我當老師快樂的泉源。

歡迎指正和提供寶貴意見。(pdf in 1) (pdf in 4，如果需要列印， 請雙面列印此版本，環保救地球)

初稿 2021/1/15。

Domino's Pizza launched a pilot program with autonomous vehicle provider Nuro

Inside AI, 2021/4/14

Domino's Pizza launched a pilot program with autonomous vehicle provider Nuro and will begin deliveries in Houston this week. The deliveries will be made using Nuro's R2 robots, the first fully autonomous on-road delivery vehicle (without a human safety driver) that's received permission to operate in the U.S.

Dataflow-as-a-Service of SambaNova

Inside AI, 2021/4/14

SambaNova, a developer of AI hardware and software systems, raised $676M in financing that values the startup at over $5.1B. The Nvidia competitor makes chips for AI processes, which it uses to build servers and AI software that it leases to other businesses.