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研究所、轉學考(插大)-近代物理學
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110年 - 110 國立中央大學_碩士班招生考試_光電類：近代物理#103854
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8. (10 pts) Find the group and phase velocities of 10-MeV electrons.
其他申論題
(c) (10 pts) If 20 fermions with a mass of m are in the well, what is the mean energy of fermion at absolute temperature T=0 K? What is the Ferni energy of the system?
#439400
(d) (5 pts) If 20 bosons with a mass of m are in the well, what is the total energy of bosons at absolute temperature T-0 K?
#439401
(a) (5 pts) When a particle is in an infinite square-well potential (V-＞∞), how does the lowest energy of the particle change when the potential V becomes finite.
#439402
(b) (10 pts) Continue (a), a particle is in a finite square-well potential as follows If the bottom of the square-well potential is increased from 0 to V', explain how the total energy and kinetic energy of the particle change?
#439403
一、網路流量一時過大會造成封包延遲或封包丟失等問題,面對此情況,網路管理者通常有下列三種策略:(1)Overprovisioning,(2)Priority(3)Quality of Service Guarantees,請詳細說明此三種策略的意義及各自的優缺點。(15分)
#439405
1.IPsec 中的AH(Authentication Header)協定和 ESP(Encapsulating ecurity Payload)協定的作用有何不同?(5分)
#439406
2.IPsec中的Transport mode和Tunnelmode 兩種操作方式及優缺點為何? (5分)
#439407
三、在資料庫寫入或更新的過程中,為確保交易(transaction)可以正確執行,須 確保滿足 ACID (AtomicityConsistencyIsolation,Durability property。請詳細說 明此四個特性。(8%)
#439408
四、請詳細說明m database 兩者之差異。(10%)
#439409
五、何謂NoSQL資料庫?請詳細說明NOSQL資料庫所具有之特性。(7%)
#439410
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