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☆宏華資訊廣場☆ D-Link友訊 DIR-882 AC2600 MU-MIMO 雙頻Gigabit無線路由器

功能:

☆宏華資訊廣場☆ D-Link友訊 DIR-882 AC2600 MU-MIMO 雙頻Gigabit無線路由器

描述:

?D-Link友訊 DIR-882 AC2600 MU-MIMO

雙頻Gigabit無線路由器

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DIR-882 採用IEEE802.11ac WAVE 2無線技術，搭配MU-MIMO技術多人同步連網也能盡情在電競國度玩樂，並享受極為流暢的影片串流。

雙頻無線傳輸/接收最高可達2600Mbps，低干擾、傳輸速率高達

1732Mbps的5GHz頻段無線網路環境，支援最多無線裝置亦可同步透過2.4GHz頻段連線上網，DIR-882提供完美無瑕的高清線上影片播放、居家無縫上網與同步飆網／線上遊戲不Lag。

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廣域網路介面:

提供一組可與xDSL/Cable 寬頻網路連線之10/100/1000 Mbps Gigabit網路埠

區域網路介面:

提供四埠10/100/1000 Mbps Gigabit乙太網路交換器

網路技術標準

IEEE 802.3ab

IEEE 802.3u

IEEE 802.3x flow control in full duplex mode

Negotiation

Auto MDI/MDIX

無線網路介面:

2.4GHz - IEEE 802.11b/g/n

5GHz - IEEE 802.11a/n、IEEE 802.11ac MU-MIMO

無線傳輸速度:

2.4GHz頻段 : 802.11n模式下，最高傳輸速率800Mbps。

5GHz頻段 : 802.11n模式下，最高傳輸速率800Mbps。802.11ac模式下，單一最高傳輸速率1732Mbps。

USB 埠

USB 3.0 X 1

USB 2.0 X 1

支援功能:

廣域網路連線支援:

Static IP

Dynamic IP

PPPoE?

VPN Server:L2TP over IPSec

VPN穿透:

PPTP /L2TP /IPSec

無線加密

WPA

WPA2

無線天線：5dBi x 4

WPS (Wi-Fi Protected Setup)無線安全設定

QoS

D-Link智慧型QoS

DHCP 伺服器

DNS Relay

Dynamic DNS(DDNS)

中文化網頁式管理介面

支援UPnP 網路協定

支援訪客網路

AC Beamforming

支援IPv6/IPv4

彈性排程設定

MAC / Web URL 過濾

Dual active firewall

Stateful Packet Inspection(SPI)

MAC Address 過濾

具備一個DMZ

Port Forward

支援Static Route?

簡易安裝:

創新單頁圖形化一步安裝

提供Android/iPhone QRS 免費無線路由器設定APP

電源供應器規格：輸出100-240V(輸出：12V/2.5A)

尺寸：258.8 x 184.1 x 45.5 mm

溫度：操作溫度0~40度C, 儲存-20~65度C

濕度：10-90未凝結, 5%~95%未凝結

NCC:CCAI17LP0780T2

BSMI認證

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◎內附保固卡，請務必妥善保存，爾後如遇商品維修未附上保固卡者，一律視同已過保固?

期限處理之?

?注意事項：?

?退貨商品包裝及內容物須完整無缺件破損，否則恕無法接受退換貨。?

?產品顏色會因網頁呈現而有些許差異，以收到實品為準。?

?產品規格若敘述有誤，請以官方網站公佈為主。?

?使用前請確實遵從產品說明書內之操作指示及注意事項。?

?規格說明一切以官方公佈為標準，如有更動恕無法另行告知。?

?產品有效保固之內，送修者需自付來(回)運費，或直接送原廠保修。

☆宏華資訊廣場☆ D-Link友訊 DIR-882 AC2600 MU-MIMO 雙頻Gigabit無線路由器

標題:

熔岩蒸發的溫度

發問:

熔岩本身的溫度大約1200-1600C 那麼如果要將岩漿變成氣體雖要將溫度提升到大約多少？

最佳解答:

Temp of meltingTemp of boiling SiO2~2000K2503K Al2O32345K3253K CaO2887K3123K MgO3125K3873K FeO1642K Because of various composition for magma, heating over 2503K (2230 deg C) SiO2 will start to vapourize, further heating over 3123K (2850 deg C) CaO will start to vapourize, further heating over 3253K (2980 deg C) Al2O3 will start to vapourize, further heating over 3873K (3600 deg C) MgO will start to vapourize, until now almost all major composition have been vapourized. Usually naturally formed magma will not be so hot, and lava temperatures are usually less than 1200 deg C. Volcanologists use the word "magma" for molten rock that is still under ground and hasn't yet erupted. Once it has erupted onto the surface, call it "lava". In "Role of olivine cumulates in destabilizing the flanks of Hawaiian volcanoes: Bulletin of Volcanology, v. 56, p. 425-434." Clague and Denlinger report the following composition for average Kilauea primary magma: SiO2 (49%), TiO2 (1.9%), Al2O3 (10.7%), FeO (11.2%), MgO (16.5%), CaO (8.55%), Na2O (1.66%), K2O (0.30%), P2O5 (0.18%). Comparing the Chemical Composition of Hawaiian Basalt and Mount St. Helens Dacite Hawaiian Basalt SiO2 (48.4%), Al2O3 (13.2%), FeO (11.2%), MgO (9.7%), CaO (10.3%), Na2O (2.4%), K2O (0.6%), TiO2 (2.8%), other (1.4%). Mount St. Helens Dacite SiO2 (63.5%), Al2O3 (17.6%), FeO (4.2%), MgO (2.0%), CaO (5.2%), Na2O (4.6%), K2O (1.3%), TiO2 (0.6%), other (1.0%). so lava from Mount St. Helen is much cooler than from Hawaii. Usually naturally formed magma will not be so hot, and lava temperatures are almost always less than 1200 degrees C. The highest temperature for lava probably about 1400 degrees Celsius in a basaltic lava. With higher silica content, the lower the melting temperature. Lava is molten rock that forms below the surface of the earth. It probably forms between 150 and 50 km down, and we call it magma before it reaches the surface. Once it reaches the surface to erupt and flow down the side of a volcano, we call it lava, even though it really is the same stuff. The heat that is required to form the magma in the first place comes from the radioactive decay of naturally-occurring radioactive elements within the earth, this heat is enough to partially melt rocks in the upper mantle, about 50-100 km below the surface. I say partially melt because the rocks don't completely melt. As you can guess, most rocks are made up of more than one mineral, and these different minerals have different melting temperatures. This means that when the rock starts to melt, some of the minerals get melted to a much greater degree than others. The main reason this is important is that the liquid (magma) that is generated is not just the molten equivalent of the starting rock, but instead something different. Geochemists use several elements to track the history of a batch of magma. For our example we'll start with magnesium (and think of it as magnesium oxide, MgO, like the geochemists do). Beneath Hawaii, when the mantle melts it produces a magma with about 17 weight percent MgO. Volcanologists call magma with this composition a picrite. As the magma rises crystals begin to form. The first crystal to form is olivine, which contains the elements magnesium, silicon, and oxygen in the proportions 2 to 1 to 4. The crystal is more dense than the surrounding magma and it begins to settle. It is estimated that an olivine crystal 1 mm in diameter falls through the magma at a rate of 20 meters per hour. The key point is something, the crystals, is being removed and this causes the chemical composition of magma to change. As more and more olivine crystals settle, the magma has less and less magnesium oxide and more and more silica (silicon and oxygen). For most volcanoes, by the time the original magma from the mantle is erupted its composition has changed from a picrite to a basalt.

其他解答:

☆宏華資訊廣場☆ D-Link友訊 DIR-882 AC2600 MU-MIMO 雙頻Gigabit無線路由器

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