AIM: To assess the value of contrast-enhanced ultrasound (CEUS) in diagnosing splenic artery complications (SACs) after acute pancreatitis (AP). METHODS: One hundred and eighteen patients with AP were enrolled in the ...AIM: To assess the value of contrast-enhanced ultrasound (CEUS) in diagnosing splenic artery complications (SACs) after acute pancreatitis (AP). METHODS: One hundred and eighteen patients with AP were enrolled in the study. All patients were examined by CEUS and contrast-enhanced computed tomography (CECT). CECT was accepted as a gold standard for the diagnosis of SACs in AP. The diagnostic accuracy of splenic CEUS and pancreatic CEUS was compared with that of CECT. Splenic infarction was the diagnostic criterion for splenic artery embolism and local dysperfusion of the splenic parenchyma was the diagnostic criterion for splenic arterial stenosis. The incidence of splenic sub-capsular hemorrhage, splenic artery aneurysms, and splenic rupture was all lower than that of SACs. RESULTS: Nine patients were diagnosed as having SACs after AP by CECT among the 118 patients. The patients with SACs were diagnosed with severe acute pancreatitis (SAP). Among them, 6 lesions were diagnosed as splenic artery embolism, 5 as splenic artery aneurysms, and 1 as splenic arterial stenosis. No lesion was diagnosed by pancreatic CEUS and 5 lesions were diagnosed by splenic CEUS. By splenic CEUS, 4 cases were diagnosed as splenic artery embolism and 1 as splenic arterial stenosis. The accuracy of splenic CEUS in diagnosis of SACs in SAP was 41.7% (5/12), which was higher than that of pancreatic CEUS (0%). CONCLUSION: Splenic CEUS is a supplementary method for pancreatic CEUS in AP patients, which can decrease missed diagnosis of SACs. (C) 2014 Baishideng Publishing Group Co., Limited. All rights reserved.展开更多
Eutrophication is one of the important reasons for water pollution and is also the problem for water pollution treatment at home and abroad. This article takes an overview on various technical methods and their charac...Eutrophication is one of the important reasons for water pollution and is also the problem for water pollution treatment at home and abroad. This article takes an overview on various technical methods and their characteristics applicable for treatment and control of water eutrophication from the aspects of physics, chemistry, biochemistry and environmental factors regulation, and discusses the application and development trend for relevant technologies.展开更多
The beam diagnostic devices used at RIBLL are driven by stepper motors, which are controlled by I/O modules based on ISA-bus in an industrial computer. The disadvantages of such mode are that a large number of long ca...The beam diagnostic devices used at RIBLL are driven by stepper motors, which are controlled by I/O modules based on ISA-bus in an industrial computer. The disadvantages of such mode are that a large number of long cables are used and one computer to control is unsafe. We have developed a distributed stepping motor control system for the remote, local and centralized control of the stepping motors. RS-485 bus is used for the connection between the remote control unit and the local control units. The con...展开更多
t CCL is a monthly journal, published ay the Chinese Chemical Society. CCL will publish preliminary accounts in the whole tield of chemistry, In contrast to the slow rate of publication of most Chinese journals, CCL w...t CCL is a monthly journal, published ay the Chinese Chemical Society. CCL will publish preliminary accounts in the whole tield of chemistry, In contrast to the slow rate of publication of most Chinese journals, CCL will satisfy a real and urgent need by its timeliness, especially for hot topics, In a way, it will become a show window of important chemical literature of China. For this purpose, articles in CCL are only written in English.展开更多
This paper describes briefly a new solution of distributed control system in HIRFL based on COM/DCOM technologies.COM/DCOM is one of component technologies that are popularly used in many software fields.And DCOM comp...This paper describes briefly a new solution of distributed control system in HIRFL based on COM/DCOM technologies.COM/DCOM is one of component technologies that are popularly used in many software fields.And DCOM components are vety fit to develop distributed software system under Microsoft Windows family platform.Fig.1 shows the whole framework of HIRFL control system with this technology.展开更多
HIRFL-CSR control system is required for controlling several sub-systems (see Fig.l). Our system solution is as follows. The HIRFL-CSR CONTROL is a distributed system (shown in Fig.2 ) that is divided into two parts: ...HIRFL-CSR control system is required for controlling several sub-systems (see Fig.l). Our system solution is as follows. The HIRFL-CSR CONTROL is a distributed system (shown in Fig.2 ) that is divided into two parts: Front-end Control Servers and Overall Control.展开更多
IMP CSR RF Group cooperating with BINP has fulfilled the following projects. PCI based RF signal generator; PLD centered RF station interlock and surveillance unit; High frequency analog signal processing units; CVI a...IMP CSR RF Group cooperating with BINP has fulfilled the following projects. PCI based RF signal generator; PLD centered RF station interlock and surveillance unit; High frequency analog signal processing units; CVI and Windows platform based monitor and operation interface.展开更多
The cycle coatrol function is defined and used to estimate tbe number of limit cycles for someplanar autonomous systems. Some sufficient conditions for the existence of no or at most one limitcycles are given.
文摘AIM: To assess the value of contrast-enhanced ultrasound (CEUS) in diagnosing splenic artery complications (SACs) after acute pancreatitis (AP). METHODS: One hundred and eighteen patients with AP were enrolled in the study. All patients were examined by CEUS and contrast-enhanced computed tomography (CECT). CECT was accepted as a gold standard for the diagnosis of SACs in AP. The diagnostic accuracy of splenic CEUS and pancreatic CEUS was compared with that of CECT. Splenic infarction was the diagnostic criterion for splenic artery embolism and local dysperfusion of the splenic parenchyma was the diagnostic criterion for splenic arterial stenosis. The incidence of splenic sub-capsular hemorrhage, splenic artery aneurysms, and splenic rupture was all lower than that of SACs. RESULTS: Nine patients were diagnosed as having SACs after AP by CECT among the 118 patients. The patients with SACs were diagnosed with severe acute pancreatitis (SAP). Among them, 6 lesions were diagnosed as splenic artery embolism, 5 as splenic artery aneurysms, and 1 as splenic arterial stenosis. No lesion was diagnosed by pancreatic CEUS and 5 lesions were diagnosed by splenic CEUS. By splenic CEUS, 4 cases were diagnosed as splenic artery embolism and 1 as splenic arterial stenosis. The accuracy of splenic CEUS in diagnosis of SACs in SAP was 41.7% (5/12), which was higher than that of pancreatic CEUS (0%). CONCLUSION: Splenic CEUS is a supplementary method for pancreatic CEUS in AP patients, which can decrease missed diagnosis of SACs. (C) 2014 Baishideng Publishing Group Co., Limited. All rights reserved.
基金Supported by the Project for Commission of Science and Technology of Chaoyang District in Beijing Municipality(KC1105)
文摘Eutrophication is one of the important reasons for water pollution and is also the problem for water pollution treatment at home and abroad. This article takes an overview on various technical methods and their characteristics applicable for treatment and control of water eutrophication from the aspects of physics, chemistry, biochemistry and environmental factors regulation, and discusses the application and development trend for relevant technologies.
文摘The beam diagnostic devices used at RIBLL are driven by stepper motors, which are controlled by I/O modules based on ISA-bus in an industrial computer. The disadvantages of such mode are that a large number of long cables are used and one computer to control is unsafe. We have developed a distributed stepping motor control system for the remote, local and centralized control of the stepping motors. RS-485 bus is used for the connection between the remote control unit and the local control units. The con...
文摘t CCL is a monthly journal, published ay the Chinese Chemical Society. CCL will publish preliminary accounts in the whole tield of chemistry, In contrast to the slow rate of publication of most Chinese journals, CCL will satisfy a real and urgent need by its timeliness, especially for hot topics, In a way, it will become a show window of important chemical literature of China. For this purpose, articles in CCL are only written in English.
文摘This paper describes briefly a new solution of distributed control system in HIRFL based on COM/DCOM technologies.COM/DCOM is one of component technologies that are popularly used in many software fields.And DCOM components are vety fit to develop distributed software system under Microsoft Windows family platform.Fig.1 shows the whole framework of HIRFL control system with this technology.
文摘HIRFL-CSR control system is required for controlling several sub-systems (see Fig.l). Our system solution is as follows. The HIRFL-CSR CONTROL is a distributed system (shown in Fig.2 ) that is divided into two parts: Front-end Control Servers and Overall Control.
基金Supported by WTZ project of BMBF,German Govermnent.
文摘IMP CSR RF Group cooperating with BINP has fulfilled the following projects. PCI based RF signal generator; PLD centered RF station interlock and surveillance unit; High frequency analog signal processing units; CVI and Windows platform based monitor and operation interface.
文摘The cycle coatrol function is defined and used to estimate tbe number of limit cycles for someplanar autonomous systems. Some sufficient conditions for the existence of no or at most one limitcycles are given.
