这是纯PHP编写的 HashTreeDB 类似 dbm 的数据库引擎. --------------------------------------------------- 1. hdb.class.php - 核心类 2. test_gen.php - 测试脚本, 生成全部 5位数字对应的 md5 值组成的数据库 00000 ~ 99999 (10万条记录) 生成文件 5MB 3. test_query.php - 测试查询 4. test_dra

这是一个射频识别防碰撞的程序，其中采用的是二进制算法，结果有对比图，效率明显提高-Abstract The deployments of RFID system are seriously affected by collision caused by multiple tags responding simultaneously. To facilitate the resolution of collisions caused by densely distributed memoryles

Code to size and layout a region to hold a set of mipmaps. - Query to determine if a new image fits in an existing tree. - More refcounting.