In order to solve existing problems about the method of establishing traditional system structure of decision support system(DSS), O S chart is applied to describe object oriented system structure of general DSS, an...In order to solve existing problems about the method of establishing traditional system structure of decision support system(DSS), O S chart is applied to describe object oriented system structure of general DSS, and a new method of eight specific steps is proposed to establish object oriented system structure of DSS by using the method of O S chart, which is applied successfully to the development of the DSS for the energy system ecology engineering research of the Wangheqiu country. Supplying many scientific effective computing models, decision support ways and a lot of accurate reliable decision data, the DSS plays a critical part in helping engineering researchers to make correct decisions. Because the period for developing the DSS is relatively shorter, the new way improves the efficiency of establishing DSS greatly. It also makes the DSS of system structure more flexible and easy to expand.展开更多
HIP fracture is becoming a global public health issue due to increased longevity and the in-creased incidence of osteoporosis.1,2 Patients who underwent surgery experience high rates of mortality and disability, with...HIP fracture is becoming a global public health issue due to increased longevity and the in-creased incidence of osteoporosis.1,2 Patients who underwent surgery experience high rates of mortality and disability, with approximately 5% death rate before discharge and 10% death rate within 30 days after discharge.3,4 Intraoperative cardiac arrest （IOCA） complicates up to 43 per 100,000 surgeries.5 Even with resuscitation by eligible professionals in a well-equipped operating room, IOCA is still associated with 35% imme-diate mortality and 65.5% in-hospital mortality.6,7 The main causes may be related to patient conditions, preoperative complications, anesthesia or surgical procedures.7,8 Age- associated changes in cardiovascular and other systems especially increase the risk of IOCA, which may explains why geriatric patients are the majority who experience asystole during surgery.展开更多
文摘In order to solve existing problems about the method of establishing traditional system structure of decision support system(DSS), O S chart is applied to describe object oriented system structure of general DSS, and a new method of eight specific steps is proposed to establish object oriented system structure of DSS by using the method of O S chart, which is applied successfully to the development of the DSS for the energy system ecology engineering research of the Wangheqiu country. Supplying many scientific effective computing models, decision support ways and a lot of accurate reliable decision data, the DSS plays a critical part in helping engineering researchers to make correct decisions. Because the period for developing the DSS is relatively shorter, the new way improves the efficiency of establishing DSS greatly. It also makes the DSS of system structure more flexible and easy to expand.
文摘HIP fracture is becoming a global public health issue due to increased longevity and the in-creased incidence of osteoporosis.1,2 Patients who underwent surgery experience high rates of mortality and disability, with approximately 5% death rate before discharge and 10% death rate within 30 days after discharge.3,4 Intraoperative cardiac arrest （IOCA） complicates up to 43 per 100,000 surgeries.5 Even with resuscitation by eligible professionals in a well-equipped operating room, IOCA is still associated with 35% imme-diate mortality and 65.5% in-hospital mortality.6,7 The main causes may be related to patient conditions, preoperative complications, anesthesia or surgical procedures.7,8 Age- associated changes in cardiovascular and other systems especially increase the risk of IOCA, which may explains why geriatric patients are the majority who experience asystole during surgery.
