Female primary pelvic retroperitoneal tumours(PPRTs)refer to a heterogeneous group of tumours originating from the retroperitoneal space of the female pelvis,located predominantly or entirely within the true pelvis.Th...Female primary pelvic retroperitoneal tumours(PPRTs)refer to a heterogeneous group of tumours originating from the retroperitoneal space of the female pelvis,located predominantly or entirely within the true pelvis.This group excludes metastatic tumours,bone-derived tumours,extragastrointestinal stromal tumours,broad ligament myomas,endometriosis,tumours originating from the lymphoreticular system and tumours originating from pelvic visceral organs(such as those of the female reproductive tract,intestines and urinary system).PPRTs,also known as pelvic extraperitoneal tumours,have an incidence rate of less than 0.01%.The upper boundary of the pelvic retroperitoneal space is defined by a line consisting of the superior border of the symphysis pubis,the pubic tubercle and the superior border of the sacral promontory,whereas the inferior boundary extends to the pelvic diaphragm or below.Most female PPRTs are diagnosed during reproductive age,with approximately 80%of the tumours being benign.1 The management of PPRTs poses challenges for general clinicians due to their limited clinical experience,which leads to a high rate of missed cases and misdiagnoses.Compared with abdominal retroperitoneal tumours,the anatomical structure of PPRTs is deeper and more complex,resulting in greater surgical difficulty.展开更多
This study presents a new method of 4-pipelined high-performance split multiply-accumulator (MAC) architecture, which is capable of supporting multiple precisions developed for media processors. To speed up the design...This study presents a new method of 4-pipelined high-performance split multiply-accumulator (MAC) architecture, which is capable of supporting multiple precisions developed for media processors. To speed up the design further, a novel partial product compression circuit based on interleaved adders and a modified hybrid partial product reduction tree (PPRT) scheme are proposed. The MAC can perform 1-way 32-bit, 4-way 16-bit signed/unsigned multiply or multiply-accumulate operations and 2-way parallel multiply add (PMADD) operations at a high frequency of 1.25 GHz under worst-case conditions and 1.67 GHz under typical-case conditions, respectively. Compared with the MAC in 32-bit microprocessor without interlocked piped stages (MIPS), the proposed design shows a great advantage in speed. Moreover, an improvement of up to 32% in throughput is achieved. The MAC design has been fabricated with Taiwan Semiconductor Manufacturing Company (TSMC) 90-nm CMOS standard cell technology and has passed a functional test.展开更多
基金supported by the Henan Provincial Health Commission Key Project of Science and Technology Research (SBGJ202302074)the Henan Provincial Key Support Discipline Project for 2024-Gynaecological and Obstetric Surgery。
文摘Female primary pelvic retroperitoneal tumours(PPRTs)refer to a heterogeneous group of tumours originating from the retroperitoneal space of the female pelvis,located predominantly or entirely within the true pelvis.This group excludes metastatic tumours,bone-derived tumours,extragastrointestinal stromal tumours,broad ligament myomas,endometriosis,tumours originating from the lymphoreticular system and tumours originating from pelvic visceral organs(such as those of the female reproductive tract,intestines and urinary system).PPRTs,also known as pelvic extraperitoneal tumours,have an incidence rate of less than 0.01%.The upper boundary of the pelvic retroperitoneal space is defined by a line consisting of the superior border of the symphysis pubis,the pubic tubercle and the superior border of the sacral promontory,whereas the inferior boundary extends to the pelvic diaphragm or below.Most female PPRTs are diagnosed during reproductive age,with approximately 80%of the tumours being benign.1 The management of PPRTs poses challenges for general clinicians due to their limited clinical experience,which leads to a high rate of missed cases and misdiagnoses.Compared with abdominal retroperitoneal tumours,the anatomical structure of PPRTs is deeper and more complex,resulting in greater surgical difficulty.
基金Project (No. 60873112) supported by the National Natural Science Foundation of China
文摘This study presents a new method of 4-pipelined high-performance split multiply-accumulator (MAC) architecture, which is capable of supporting multiple precisions developed for media processors. To speed up the design further, a novel partial product compression circuit based on interleaved adders and a modified hybrid partial product reduction tree (PPRT) scheme are proposed. The MAC can perform 1-way 32-bit, 4-way 16-bit signed/unsigned multiply or multiply-accumulate operations and 2-way parallel multiply add (PMADD) operations at a high frequency of 1.25 GHz under worst-case conditions and 1.67 GHz under typical-case conditions, respectively. Compared with the MAC in 32-bit microprocessor without interlocked piped stages (MIPS), the proposed design shows a great advantage in speed. Moreover, an improvement of up to 32% in throughput is achieved. The MAC design has been fabricated with Taiwan Semiconductor Manufacturing Company (TSMC) 90-nm CMOS standard cell technology and has passed a functional test.
