Our 9AM trip today encountered a pod of orcas in glassy blue seas. Included in the group was OCT059 a large male transient killer whale that is infrequently encountered. 4-27-21. Photos & report by naturalist Eric Austin Yee. Previous 4-23-21 “Killer Whale Predation Event!” Next 5-3-21 “Massive Feeding Frenzy!”

Our 9AM trip today encountered a pod of orcas in glassy blue seas. Included in the group was OCT059 a large male transient killer whale that is...

2018年12月21日 · ORCA是基于MPI方式进行并行运算的程序，目前的版本在Windows下是依赖于Microsoft MPI (MSMPI)库运行的，因此还要给系统安装MSMPI。 ORCA 6可以搭配MSMPI 10.0运行。 Google一下MSMPI 10.0就可以立刻找到MSMPI的下载地址，下载并安装之即可。 去ORCA论坛下载“ORCA [版本号], Windows, 64bit, Installer”页面里的压缩包，将之解压后，运行Orca [版本号].Win64.exe，就会启动安装程序，选择以Complete方式安装，对于ORCA 6.0.0装好后会占 …

2023年3月3日 · https://orcaforum.kofo.mpg.de/viewtopic.php?f=8&t=9997 该版本是bugfix release，主要是修复了DFT-D4梯度的bug，大家如果有用DFT-D4优化结构的（包括r2SCAN-3c），或者用DFT-D4计算含有某些特定元素（Li, Be, Na, Mg, K, Ca, Sc, Ti, V, Rb, Sr, Y, Zr, Nb, Cs, Ba, Hf, Ta）的分子的单点能，建议下载5.0.4版重新算一下，验证一下结果是否正确。 此外还修复了一些其他bug，如wB97M-V结构优化会报错的问题等。 完整的bugfix列表 …

Since ORCA 5.0, generally-contracted basis sets can be handled efficiently by using an intermediate partially contracted (pc) atomic-orbital basis for the exchange-matrix computation without affecting the results . Depending on the basis set and element type, computational speedups by many orders of magnitude are possible.

2018年12月21日 · orca是一款对学术用户免费但不开源的量子化学程序，发展迅猛，流行程度越来越高，用户越来越多。虽然orca的安装很简单，都不需要编译源代码，但还是有不少量子化学初学者经常问怎么安装，这里就统一说一下。

2015年1月4日 · ORCA的收敛做的没有G09好，有些体系用G09就收敛了而ORCA非常难收敛，一致在震荡。 我是结合者用，大的晶体矿物用高斯，100个以下的有机分子用orca. 你说的情况我也遇到过，明明高斯gaussian b3lyp/6-31g*都收敛过的分子，用orca算，都不能收敛。

2. The Architecture of ORCA. 2.1. The structure of the ORCA source code; 2.2. The shell structure of ORCA; 2.3. The master/slave concept and the calling sequence; 2.4. The calculation of molecular properties; 3. Calling the Program (Serial and Parallel) 3.1. Calling the Program; 3.2. Calling the Program with Multiple Processes; 4. General ...

Salish Sea Whales and Wildlife | information on the Outer Coast Transient t...

The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus, it is recognizable by its black-and-white patterned body. A cosmopolitan species, it inhabits a wide range of marine environments, from Arctic to Antarctic regions to tropical seas.