Design of constant temperature heating circuit for medical hyperthermic perfusion system

Author(s):  
Xia Long ◽  
Yuan Liu
1981 ◽  
Vol 26 (6) ◽  
pp. 1055-1067 ◽  
Author(s):  
R A Niesler ◽  
D W Axon ◽  
M A Eggert

1997 ◽  
Vol 74 (8) ◽  
pp. 958
Author(s):  
Charles G. Shevlin ◽  
Ward Coppersmith ◽  
Christopher Fish ◽  
Stanley Vlock ◽  
William Vellema

1982 ◽  
Vol 27 (5) ◽  
pp. 755-755
Author(s):  
R A Niesler ◽  
D W Axon ◽  
M A Eggert

Author(s):  
Mao Wei ◽  
Xu Weiquan ◽  
Luo Lin ◽  
Lu Gangqiang ◽  
Li Yongxiang

Background: With the rapid development of the domestic independent heating system, the wall-hanging boiler has become the focus of concern for a large number of users. As an independent heat source, it has been widely applied in many places. Objective: Based on many deficiencies emerging from the wall-hanging gas boiler used at present, a novel electrothermal wall-hanging boiler is presented in this paper to realize the family central heating and provide constant temperature water supply system in the meantime. Method: 3D solid model of the wall-hanging boiler was firstly designed by using the software Solidworks, and then, based on ARM intelligent microcontroller, the circuit board production was completed with the corresponding control circuit design to conduct the automatic temperature regulation of the wall-hanging boiler, so as to achieve the desired effect of the constant temperature heating and energy conservation. Results: On the basis of the experiments and the test of sample, the trial operation of the prototype can meet the expected requirements. The greatest innovation of the product is to use a new type of nano semiconductor material and a sort of hydrocyclone mode to enhance the heat exchange in a more full and uniform way, as well as improve the thermal efficiency greatly. Conclusion: Such patent provides an effective theoretical and experimental basis for the diagnosis and fixing of the electrothermal wall-hanging boiler. With the help of the prototyping fabrication and debugging installation, it can be shown that the novel electrothermal wall-hanging boiler will have a very broad application prospect.


2003 ◽  
Vol 2 (1) ◽  
pp. 12
Author(s):  
M KHAIRALLAH ◽  
B BOUCHARD ◽  
J MCDUFF ◽  
F LABARTHE ◽  
G DANIALOU ◽  
...  

TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 21-26 ◽  
Author(s):  
CHAO TIAN ◽  
LINQIANG ZHENG ◽  
QINGXIAN MIAO ◽  
CHRIS NASH ◽  
CHUNYU CAO ◽  
...  

The Fock test is widely used for assessing the reactivity of dissolving pulp. The objective of this study was to modify the method to improve the repeatability of the test. Various parameters that affect the repeatability of the Fock test were investigated. The results showed that Fock reactivity is dependent on testing conditions affecting the xanthation between cellulose and carbon disulfide, such as the moisture content of the pulp sample, sodium hydroxide (NaOH) concentration, xanthation temperature, carbon disulfide dosage, and xanthation time. The repeatability of the test was significantly improved using the following modified testing procedure: air dried sample in the constant temperature/humidity room, xanthation temperature of 66°F (19°C) in a water bath, xanthation time of 3 h, NaOH concentration of 9% (w/w), and 1.3 mL carbon disulfide.


1972 ◽  
Vol 68 (2_Supplb) ◽  
pp. S285-S309 ◽  
Author(s):  
Kurt Ahrén ◽  
Per Olof Janson ◽  
Gunnar Selstam

ABSTRACT This paper discusses in vivo and in vitro ovarian perfusion systems described so far in the literature. The interest is not focussed primarily on the results of these studies but rather on the advantages and disadvantages of the techniques and methods used. Another part of the paper summarizes the points which are most important, in our opinion, to take into consideration when developing an in vitro perfusion technique of the ovary. The last part of the paper gives a description of and some preliminary results from an in vitro perfusion system of the rabbit ovary which is under development in this laboratory.


Sign in / Sign up

Export Citation Format

Share Document