1.Improve ment of Lunar DPX-L Dual Energy X-ray Absorptiometry Equipment
Bin YANG ; Zhongqing YUAN ; Mei ZHANG
Chinese Medical Equipment Journal 2009;30(7):71-72
Objective To solve the encountered problem of lack of space and dyskinesia of detector in dual energy X-ray absorptiometry system, Methods The method used PartitionMagic8.0 software to partition space in hard disk and added the load to keep the detector balance for moving, Results The original software can run in hard disk, and the pulleys are not gotten force from side. Conclusion The reason of problem is analyzed to find the method that can reduce the percentage for system failure and improve precision and accuracy of data.
2.DR Image Quality Control and X-ray Green Examination Concept
Jinshan ZHANG ; Lanzhu CUI ; Bin YUAN
Chinese Medical Equipment Journal 2003;0(10):-
To ensure the quality of direct digital radiography images, the management and control of image quality, basic adjustment of facilities post-processing, and raising technicians' professional quality mut be performed. To protect patients from radiation should be emphasized in medical staffs. Radiation should be reduced when ensuring the images' quality, and green examination concepts should be advised.
3.Calculating the Consumed Peak Value of Oxygen in Central Oxygen Supply System Based on Poisson Distribution
Bin YANG ; Mei ZHANG ; Zhongqing YUAN
Chinese Medical Equipment Journal 2003;0(12):-
The objective of this paper is to find out a way that calculate the consumed peak value of oxygen in medical central oxygen supply system,which is the basis for discussion of purchasing hospital oxygen generating system.The author established a math model by poisson distribution to describe the consumed peak value of oxygen in medical central oxygen supply system to find out a convenience way to calculate the consumed peak value of oxygen.
4.Pressure-based Monitoring of Medical Central Compressing Air Supply System
Bin YANG ; Mei ZHANG ; Zhongqing YUAN
Chinese Medical Equipment Journal 1989;0(01):-
Objective To determine the indexes for evaluating medical central compressing air sypply system.Methods According to the gas equation,pressure calculation was perfomed with the pressure variation as the monitoring subject.Results Such parameters could be used for monitoring medical central compressing air supply system as as average velocity & instanteous velocity of gas consumption,air compressor's average exhaust velocity & exhaust velocity at start-stop point,and pressure-exhaust velocity curve of air compressor.Conclusion The method can be applied to enhancement of quality management & maintenance of the equipment.
5.The influence of puerarin on the expression of TNF-α in rats with focal cerebral ischemia and reperfusion
Ping ZHANG ; Tong LI ; Bin ZHU ; Bin YUAN
Journal of Chinese Physician 2008;10(4):447-449
Objective To study the nerve protective mechanism of puerarin on ischemic brain injured and observe the expression change of TNF-α cytokines in ischemic brain area. Methods 90 healthy male SD(Spraque-Dawley)rats were used to built the animal model of brain medium sized artery focal cerebral ischemia reperfusion with the patching methods, and the rats were randomly divided into three groups: Sham operation group(n=30),operation group(n=30),operation with puerarin interfered group(n=30).There were five different observing time in every group(6h,12h,24h,48h,72h after operation).The operation with puerarin group rats were treated with puerarin solution, the sham operation and operation group rats were injected the same volume Sodium Chloride. To observe the expression of TNF-α cytokines in different time, immunohistochemistry staining in ischemic region was used. Results Compared with the sham operation group. the expression of TNF-α cytokine in cerebral isehemic reperfusion brain tissue in the operation and the operation with puerarin interfered groups was higher(P<0.01).Compared with the operation group, the expression of TNF-αcytokine was significantly decreased in different time after cerebral ischemic-reperfusion in the operation with puerarin interfered group(P<0.01 or P<0.05).Conclusions The puerarin can restrain the expression of the TNF-α cytokine.
6.The application of full-size three-dimensional printing model combined with three-dimensional digital demonstration in facilitating patient's preoperative understanding of laparoscopic partial nephrectomy
Dongwen WANG ; Bin ZHANG ; Xiaobin YUAN ; Xuhui ZHANG ; Qiang JING
Chinese Journal of Urology 2017;38(2):127-130
Objective To evaluate the feasibility and effectiveness of full-size three-dimensional individual printed model (3D-IPM) for improving the patient's understanding of laparoscopic partial nephrectomy (LPN) preoperatively.Methods Between June 2015 and June 2016,37 patients with cT1 renal tumors underwent retroperitoneal LPN.The 3D individual digital models (3D-IDMs) were created using 3D medical image reconstructing and guiding system (3D-MIRGS) and the full-size 3D-IPMs were fabricated correspondingly.For each patient and his/her closest accompanying immediate family member (CAIFM),two preoperative conversations with a single surgeon were held by using patient's CT films,the entity of 3D-IPM combined with 3D-IDM demonstration separately.The preoperative levels of comprehension to the renal anatomy,mass characteristics,the upcoming PN procedure,potential complication risks and postoperative prognosis were evaluated using a self-made scoring questionnaire in the patient and CAIFM groups.Results All the fabrications of full-size 3D-IPMs were technically successful.Both in patient and CAIFM groups,the total preoperative comprehending score (total-PCS) elevated significantly by presenting 3D-IPM combined with 3D-IDM demonstration than CT films (42.7 vs.31.5 in patient group,P < 0.05;44.6 vs.33.1 in CAIFM group,P < 0.05).Sub-PCSs in all 5 aspects also showed a uniformed climbing pattern with the assistance of 3D-IPM combined with 3D-IDM demonstration rather than CT films.Conclusion The application of 3D-IPM combined with 3D-IDM demonstration can improve the preoperative comprehension of the patient and CAIFM to LPN with more intuitionistic and verisimilar presentation.
7.Systematic view on medicinal property theory based on self-similarity principle.
Bin YUAN ; Yan-Ling ZHANG ; Yun WANG ; Yan-Jiang QIAO
China Journal of Chinese Materia Medica 2014;39(13):2371-2374
Studies on the prescription combination regularity based on medicinal tastes focus on the internal relations between the structure and hierarchy of the prescription combination system. In this paper, with the systematic and scientific self-similarity theory as the core ideology, authors systematically interpreted the self-similarity theory of medicinal properties, defined the self-similarity of prescriptions with identical or similar medicinal properties, and built the systematic view of medicinal property theory based on the prescription combination based on the entity grammar system. As a result, the system was conducive to integrating traditional Chinese medicinal knowledge of syndromes, therapeutic principles, efficacies, medicinal properties and tastes and achieving the automatic design and optimization process from symptoms to prescriptions, and providing scientific and feasible methods and technical systems for the application of the medicinal property theory, with a guiding significance to the technology, methodology and theory of decoction pieces compatibility, component compatibility and compound medicine design.
Drug Combinations
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Drug Prescriptions
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Medicine, Chinese Traditional
9.Research of the mechanism of pre-B-cell colony-enhancing factor in pulmonary vascular endothelial permeability increasing after CPB
Yuan ZENG ; Wei YANG ; Xiaoqiang ZHANG ; Bin LI ; Xiao DONG
Chongqing Medicine 2013;(28):3388-3389,3392
Objective To investigate the mechanism of PBEF in pulmonary vascular endothelial permeability increasing after car-diopulmonory bypass ,in order to provide the basis for a better lung protective measures during cardiopulmonary bypass .Methods Animal models were established ,group A :the rats were transfected with the lentiviral AD-PBEFshRNA ;group B :the rats were took 30 min deep hypothermic circulatory arrest ;group C :the rats were took 30 min deep hypothermic circulatory arrest ,then trans-fected with the lentiviral AD-PBEFshRNA ;control group :the rats were anesthetized and established CPB tube ,without CPB by-pass .Lung tissue was detected with Western blotting and ELISA .Results PBEF ,phosphorylation of P38MAPK ,ERK ,MLC ,VE-cadherin ,FAK in group C had significant difference with group A ,B and the control group(P<0 .05) .VEGF ,MMP2 ,MMP9 ,W/D in group C had significant difference with group A ,B and the control group(P<0 .05) .The pathological results showed that rat lung tissue of the control group was normal ,while in group C ,it had severe pathological damage ,the pathological damage degree in group A ,B reduced compared to group C .Conclusion PBEF can through MAPK/PI3K-Akt/VEGF signaling pathway ,increase pulmonary vascular endothelial permeability .
10.THE PRELIMINARY RESEARCH ABOUT THE REASONS OF BUSTING BAGS OCCASIONALLY DURING SOY STORAGE
Zhi-Yuan SUN ; Huan-Shu LIU ; Xiao-Bin ZHANG ;
Microbiology 1992;0(02):-
Shan Qi soy has busting bags, bacteria sum overproof, continue acidification and other problems occasionally during the storage. It's probably caused by the Lactobacillus continue growth in the soy. We tried expounding the relationship between growth and producing acid when Lactobacillus growing in the thin fermented material.