A lecture of Sabre Kais 'Phase transitions and critical phenomena for electronic structure of atoms and molecules' (?) at internal meeting of the quantum chemistry group of Purdue University. West Lafayette, Indiana, September 21, 1999.

The image shows a lecture by Sabre Kais on "Phase transitions and critical phenomena for electronic structure of atoms and molecules" at an internal meeting of the quantum chemistry group of Purdue University.

**Image Details**

* The top half of the image is a photograph of a man standing in front of a whiteboard, likely giving the lecture.
   + He has short dark hair and is wearing glasses, a blue pinstripe button-down shirt with light collar and cuffs, and light blue jeans.
   + His left hand is raised to his chest, and he appears to be gesturing as he speaks.

* The bottom half of the image is a photograph of the same man standing in front of a blackboard.
   + He has short dark hair and is wearing glasses, a dark blue pinstripe button-down shirt with light collar and cuffs, and light blue jeans.
   + His left hand is raised to his chest, and he appears to be gesturing as he speaks.

**Background**

* The background of the top photograph includes a whiteboard on which there are no notes or markings visible.
* The background of the bottom photograph includes a blackboard on which there are some faint chalk marks visible. – AI vision

1999年9月21日,萨布·凯斯在普渡大学量子化学小组的内部会议上作了一场关于“原子和分子电子结构相变和临界现象”(?)的讲座。 **图像详细信息** * 图像的上半部分是拍摄一个人站在白板前,很可能是在给演讲的照片。他头发短而黑,戴着眼镜,蓝条纹衬衫领口和袖口都有浅色边缘,身穿浅蓝色牛仔裤。 * 图像的下半部分是同一个人站在黑板前的照片。他头发短而黑,戴着眼镜,深蓝条纹衬衫领口和袖口都有浅色边缘,身穿浅蓝色牛仔裤。 * 在顶部照片的背景包括一个白板上没有可见的笔记或标记。 * 底部照片的背景包括一块黑板上有些淡淡的粉红色粉笔痕迹可见。 **背景** * 在顶部照片的背景包括一个白板上没有可见的笔记或标记。 * 底部照片的背景包括一块黑板上有些淡淡的粉红色粉笔痕迹可见。. – Chinese translation