diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index da642d7..06d4c4c 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -174,8 +174,9 @@
       "smart-connections:Open: Smart Chat Conversation": false
     }
   },
-  "active": "ac38bc1a293c35ce",
+  "active": "03b87541fd630e7a",
   "lastOpenFiles": [
+    "Kane-Dynamics-Theory-Applications.pdf",
     "Ai/deepSeek Api Key.md",
     "多体求解器编写/多体+水动 platform+tower debug.md"
   ]
diff --git a/Kane-Dynamics-Theory-Applications.pdf b/Kane-Dynamics-Theory-Applications.pdf
new file mode 100644
index 0000000..8a654ce
Binary files /dev/null and b/Kane-Dynamics-Theory-Applications.pdf differ