در هنگام جستجو کلمه در قسمت عنوان میتوانید کلمات مورد جستجو را با کاراکتر (-) جدا کنید.
کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Journal of Chemical Reviews
- نوع مقاله: Journal Article
- کلمات کلیدی: Fluid,pump,Well,Gas Overflow,Tank Pressure
- چکیده:
- چکیده انگلیسی: Basically, the design of the gas extraction supplementary string is specific to wells in which the pressure column of the fluid produced is close to or higher than the reservoir pressure. If the reservoir pressure cannot overcome the column of fluid produced or this pressure difference leads to production with low flow, the brain tube must be used. In this way, by pumping gas through this string and lightening the column and producing from the circular space, they solve the problem. In this way, after pumping, the gas comes out of the side of the suction valve and lightens the fluid column. It should be noted, however, that reducing the diameter of the production cavity created by driving such filaments increases the velocity of the fluid and gives the fluid less opportunity to lose its soluble gas. It is obvious that the use of several lateral positions of the overflow valve in the field of overflow with gas has made it possible to inject gas from several points. In the continuous flow of ascent with base gas and the general rule, the energy resulting from the expansion of gas is from a high pressure to a low pressure that can be used to develop and increase the flow of fluid in the well. The use of this energy is generally continuous, which is in the form of continuous injection of gas into the fluid inside the well.
- انتشار مقاله: 11-05-1399
- نویسندگان: Masood Bagheri Sadr,Alireza Bozorgian
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,Colorectal cancer,Congenital Hypertrophy of the Retinal Pigment Epithelium,Familial adenomatous polyposis
- چکیده:
- چکیده انگلیسی:
Objective: Familial adenomatous polyposis (FAP), an autosomal dominant inherited disorder is characterized by the presence of multiple adenomatous colorectal polyps, which can develop into cancer during early adulthood. Therefore, early diagnosis is essential. Most FAP patients have several extracolonic manifestations, including congenital hypertrophy of the retinal pigment epithelium (CHRPE). Whereas genetic markers may provide the main route to detection of ‘‘at risk’’ subjects , at present this approach is clearly limited and searches for a noninvasive phenotypic marker continue to be high priority.The aim of this study was to describe the pattern of distribution of CHRPE lesions and evaluate their diagnostic value in FAP patients and their family members in a local population. Methods: A total of 23 FAP patients and 26 relatives belonging to 12 families at high risk of developing FAP were subjected to colonoscopic and ophthalmological examination. Result: Retinal examinations demonstrated prevalences of CHRPE in FAP patents and their siblings of 78% and 38%, respectively. We were able to illustrate a significant correlation between FAP disease and the presence of retinal lesions. Sensitivity and specificity of CHRPE as a screening test to detect the presence of FAP are 78.3% and 61.5%, respectively, with a positive predictive value of 64.3% and a negative predictive value of 76.2 %. A "lesion form" significant difference was found between FAP and normal participants.Spearman nonparametric analysis revealed no correlation between age and number or size of lesions. Conclusion: Multiple CHRPE lesions are a diagnostic feature of FAP patients They are specific and sensitive clinical markers of this disease (specificity 60% and sensitivity 77%).- انتشار مقاله: 27-06-1396
- نویسندگان: Seyed Kazem Mirinezhad,Farideh Mousavi,Masood Bagheri,Bita Sepehri,Ali Ghavidel,Morteza Ghojazadeh,Mohammad Hossin Somi
- مشاهده