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| 1 | 地应力对水压致裂裂纹扩展影响的数值模拟显示文摘研究岩石在渗流-应力作用下裂纹萌生、扩展的破坏机制问题,采用岩石破裂过程分析软件对不同地应力水平和含不同倾角裂纹下水压致裂裂纹扩展进行了数值模拟研究,结果表明:在内孔水压作用下,随着地应力由80 MPa逐渐减少到45 MPa时,形成的平直裂纹由垂直于水平主应力方向逐渐向偏离水平主应力的方向发展,同时周围伴随着许多随机裂纹;预制裂纹水压致裂可以看出水压是穿过预制裂纹的,该成果为石油工业提高石油开采率提供了理论基础和科学依据. | 陈庚 徐涛 唐春安 Ranjith P G | 2013 | 辽宁工程技术大学学报(自然科学版)2013，32，1： | 12 |
| 2 | 未固结流砂地层采油过程中出砂情况模拟实验显示文摘为了研究未固结流砂储集层在采油过程中的出砂情况和影响出砂的主要因素,进行了不同条件下的出砂过程模拟实验。使用水洗白砂、黏土(高岭土)和蒸馏水制成未固结流砂地层模型,利用新开发的出砂模拟装置进行了模拟实验,并分析了作用于地层的拖曳力和地层胶结特征对出砂的影响。研究表明,随着拖曳力的增加,出砂速度和产油速度都加快;随着胶结物含量的增加,出砂量和产油量明显降低,甚至在胶结物含量较高的情况下出砂量几乎为零。地层压力大的油藏在开采期间由于产生了较大的拖曳力更可能出砂,而拖曳力和有效地层应力共同影响油藏的总体产油量。可以根据地层黏土含量估计出砂情况,从而通过采取适当的防砂措施尽可能减少出砂量。某些情况下油藏比气藏更容易出砂。 | PERERA M S A RANJITH P G RATHNAWEERA T D DE SILVA G P D LIU T | 2017 | 石油勘探与开发2017，44，5： | 8 |
| 3 | 地下水中非水相流体污染运移的三维有限元法显示文摘介绍孔隙介质中二相流三维有限元的开发,此法可用于地下非溶混污染物渗流输运问题。阐述其基本原理和数值离散格式,以及采用混合形式的表达方程来解决由依赖饱和度的变量在时间演化中的较强的非线性所引起的数值逼近上的困难,说明了同步解法的有效性和改善计算效率的办法。给出2个算例以验证程序的正确性和展示其初步的可应用性。 | 李宏 RANJITH P G | 2008 | 岩石力学与工程学报2008，27，12： | 6 |
| 4 | A geometric modeling and five-axis machining algorithm for centrifugal impellers 显示文摘 | ERIK L J BOHEZ S D RANJITH S KETAN P JOOST R D TSAU T | 1997 | Journal of Manufacturing Systems1997，16，42： | 1 |
| 5 | Performance evaluation of cement stabilized fly ash-GBFS mixes as a high- way construction material显示文摘 | SINGH S P TRIPATHY D P RANJITH P G | 2008 | Waste Management2008，28，： | 1 |
| 6 | Modeling the effects of heterogeneity and anisotropy on the excavation damaged / disturbed zone (EDZ)显示文摘 | Wang S H Lee C I Ranjith P G | | 0，，02： | 1 |
| 7 | Sub-and super-critical carbon dioxide permeability of wellbore materials under geological sequestration conditions:An experimental study显示文摘 | Nasvi M C M Ranjith P G Sanjayan J | 2013 | Energy2013，54，： | 1 |
| 8 | Investigation of the poten- tial of coal combustion fly ash for mineral sequestration of CO2 by accelerated carbonation 显示文摘 | Ukwattage N L Ranjith P G Wang S H | 2013 | Energy2013，52，2： | 1 |
| 9 | Effects of effective stress changes on the permeability of latrobe valley brown coal显示文摘 | Jasinge D Ranjith P G Choi S K | 2011 | Fuel2011，90，： | 1 |
| 10 | A review of studies on CO2 sequestration and caprock integrity 显示文摘 | Shuklar R Ranjith P Haque A | 2010 | Fuel2010，89，10： | 1 |
| 11 | Effect of different mix compositions on apparent carbon dioxide ( CO2 ) permeability of geopolymer: Suitability as well cement for CO2 sequestration wells显示文摘 | Nasvi M C M Ranjith P G Sanjayan J | 2014 | Applied Energy2014，114，： | 1 |
| 12 | Nonlinear single-phase flow in real rock joints显示文摘 | RANJITH P G DARLINGTON W | 2007 | Water Resources Research2007，43，09： | 1 |
| 13 | The effects of subcritical and super-critical carbon dioxide adsorption-induced coal matrix swelling on the permeability of naturally fractured black coal显示文摘 | M S A Pereraa P G Ranjith S K Choi | 2011 | Energy2011，36，11： | 1 |
| 14 | CT-measured pore characteristics of surface and subsurface soils influenced by agroforestry and grass buffers显示文摘 | Ranjith P U Stephen H A | 2008 | Geoderma2008，145，： | 1 |
| 15 | Effects of effective stress changes on permeability of latrobe valley brown coal显示文摘 | Jasinge D Ranjith P G Choi S K | 2011 | Fuel2011，90，3： | 1 |
| 16 | Modeling the effects of heterogeneity and anisotropy on the excavation damaged/ disturbed zone (EDZ)显示文摘 | Wang S H Lee C I Ranjith P G | 2009 | Rock Mechanics and Rock Engi- neering2009，42，2： | 1 |
| 17 | CO2permeability of indian bituminous coals:implications for carbon sequestration显示文摘 | Vishal Ranjith P G Singh T N | 2013 | International Journal of Coal Geology2013，105，： | 1 |
| 18 | Strength of geopolymer cured in saline water in ambient conditions 显示文摘 | Giasuddin H M Sanjayan J G Ranjith P G | 2013 | Fuel2013，107，： | 1 |
| 19 | Metabolic syndrome in young Asian Indian patients with myocardial infarction 显示文摘 | RANJITH N PEGORARO R J NAIDOO D P | 2007 | Cardiovase J Afr2007，18，： | 1 |
| 20 | Genetic associations of inflammatory bowel disease in a South Asian population显示文摘AIM To estimate prevalence and phenotypic associations of selected inflammatory bowel disease(IBD)-associated genetic variants among Sri Lankan patients. METHODS A case study of histologically confirmed ulcerative colitis(UC) or Crohn's disease(CD) patients with ≥ 1 year disease duration, who were compared to unrelated, gender-matched, healthy individuals as controls, was conducted at four major centers in Sri Lanka. Phenotypic data of the cases were obtained and all participants were genotyped for 16 selected genetic variants: IL12 B :rs1045431, IL23 R :rs11805303, ARPC2 :rs12612347, IRGM :rs13361189, IL26/IL22 :rs1558744, CDH1 :rs1728785, IL10 :rs3024505, FCGR2 A :rs3737240, PTGER4 :rs4613763, IL17 REL/PIM3 :rs5771069, HNF4 a :rs6017342, STAT3 :rs744166, SMURF1 :rs7809799, LAMB1 :rs886774, HLA-DRB5, DQA1, DRB1, DRA :rs9268853, MST1, UBA7, and APEH :rs9822268. The genotypes of all variants were in Hardy-Weinberg Equilibrium(P > 10^(-3)). To account for multiple hypothesis testing, P-values < 0.003 were considered significant.RESULTS A total of 415 patients and 465 controls were recruited. Out of the single nucleotide polymorphisms(SNPs) tested, the majority were not associated with IBD in Sri Lankans. Significant positive associations were noted between rs886774(LAMB1-gene) and UC(odds ratio(OR) = 1.42, P = 0.001). UC patients with rs886774 had mild disease(OR = 1.66, P < 0.001) and remained in remission(OR = 1.48, P < 0.001). A positive association was noted between rs10045431(IL 12 B gene) and upper gastrointestinal involvement in CD(OR = 4.76, P = 0.002). CONCLUSION This confirms the heterogeneity of allelic mutations in South Asians compared to Caucasians. Most SNPs and disease associations reported here have not been described in South Asians. | Madunil Anuk Niriella Isurujith Kongala Liyanage Senerath Kuleesha Kodisinghe Arjuna Priyadarsin De Silva Nimna Rajapakshe Sunali D Nanayakkara Dunya Luke Thilakshi Silva Metthananda Nawarathne Ranjith K Peiris Udaya P Kalubovila Sujeewa R Kumarasena Vajira Harshadeva Weerabaddana Dissanayake Rohan W Jayasekara Hithanadura Janaka de Silva | 2018 | World Journal of Clinical Cases2018，6，15： | 1 |
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