#raft#a flat floating structure, usually made of pieces of wood tied together, used as a boat 木排；木筏
2
a raft of sth
a large number of things 大量某 物；许多某物
The company has launched a whole raft of new software products.
公司推出了大量新软件产品。
3
a flat floating structure that you can sit on, jump from etc when you are swimming 〔可供游泳者坐于其上、跳水等的〕浮台
4
a small flat rubber boat filled with air, used for example if a boat sinks 充气（救生）橡皮筏

NY Karla [Europan 14, Runner-up]

DUE AtelierThe city of Karlskrona needs a new way to interact with the sea trough attractive district with an strong identity that could continues the urban context and connects different areas.

The aim of the project is to reinterpret the structure of the archipelago using the rules of the city and the scale of its objets to create a new floating district on the sea. The idea of the ‘archipelago within the archipelago’ propose an urban strategy able to generate new relations within the city and the nature and to be at the same time structure of connection and new settlement.

The sea is taken as platform of a new urban morphology where the presence of the water allows the city elements to be more flexible and moveable.This system creates new way of living the sea that invites people to experiment it. The idea is to follow the demands of the ever-changing society and the desires of the different cultures and personalities.

Linux执行用户态句柄(User-Mode Handler)

用户态信号句柄(或处理程序)驻留在一个进程代码段中并需访问该进程的用户态栈，因此内核切换到用户态栈执行信号句柄。若要从该信号句柄成功返回，就要切换回内核栈(Kernel Stack)，以便为正常的用户态恢复用户上下文。由于当前内核栈不再包含用户上下文(struct pt_regs)，这样的操作会失败。在从用户到内核态的过程中，用户上下文在进程的每个条目(entry)都被清空了。

为确保在用户态正常执行进程的平滑过渡(在从信号句柄返回)，handle_signal()把内核态栈的用户态硬件上下文(struct pt_regs)移动到用户态栈并设置句柄帧。在返回过程中，设置句柄帧调用_kernel_rt_sigreturn()例程；该函数把硬件上下文复制回内核栈，并恢复用户态上下文，从而恢复当前进程的正常执行。途中描绘用户态信号句柄的执行。

Mastering Linux Kernel Development