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1327篇 您的检索式:作者名="Abad"
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1A comprehensive experimental evaluation of asphaltene dispersants for injection under reservoir conditions显示文摘As the efficiency of dispersants with different origins is questionable for each typical oil sample,the present study provides a reproducible and reliable method for screening asphaltene dispersants for a typical asphaltenic crude oil.Four different asphaltene dispersants(polyisobutylene succinimide.polyisobutylene succinic ester,nonylphenol-formaldehyde resin modified by polyamines.and rapeseed oil amide) were prepared and their performance on two oils from an Iranian field under laboratory and reservoir conditions was studied.A thorough analysis including ash content and SARA tests was performed on the solid asphaltene particles to characterize the nature of deposits.Then a highly efficient carrier fluid,which is crucial when injecting dispersant into the wells,was selected from a variety of chemicals by comparing their solubility.In the next step,using an optical microscope,a viscometer,and a Turbiscan.the screening of dispersants under laboratory conditions was done on a mixture of dead oil and dispersant to evaluate the onset of asphaltene precipitation and its stability when titrating by a precipitant.Finally,two different mixtures of the efficient dispersants.live oil,and carrier fluid were used with the solid detection system(SDS) and the filtration method to examine their effects on the onset pressure of asphaltene precipitation and the asphaltene content of the crude oil under reservoir conditions.The results show that the combination of experimental methods used in this work could be consistently applied to screening asphaltene dispersants.Among the four different dispersants applied here,the dispersant based on nonylphenol-formaldehyde resin modified by polyamines showed the best performance on the available live oils.This chemical modified the onset pressure of asphaltene precipitation of light oil from 4300 psi to about 3600 psi and decreased the precipitated asphaltene of heavy oil by about 30%.Hamed Firoozinia Kazem Fouladi Hossein Abad Akbar Varamesh 2016Petroleum Science2016,13,2:6
2基于风险识别与管理的安全培训实践显示文摘对石油石化行业而言,风险管理的核心就是安全风险管理。安全风险管理的前提是风险识别。基于岗位风险识别群体的感知风险,和通过组织安全数据库识别的'现实的风险'揭示,是风险识别的有效途径。组织安全风险识别是科学识别培训需求的重要途径,从而实现培训有效管理和安全文化提升。曹民权 杨洋 邱明 Danny Vejar Rossana Abad 2014中国安全生产科学技术2014,10,S2:6
3Effect of Matricaria chamomilla Hydroalcoholic Extract on Cisplatin-induced Neuropathy in Mice显示文摘AIM: Cisplatin-based chemotherapy is a mainstay for the treatment of solid tumors, especially colorectal, ovarian, testicular, bladder, and lung cancer. Studies have shown that cisplatin could have painful effects on human and animal models. Matri-caria chamomilla (MC) has analgesic and anti-inflammatory effects. The aim of this study was to investigate the effects of MC hydro-alcoholic extract on cisplatin-induced peripheral neuropathy and to compare with morphine in mice. METHODS: Experiments were performed on 60 NMRI male mice weighed 25 g to 30 g which have been divided into 6 groups. The first group received normal saline; the second group received MC hydroalcoholic extract; the third group received cisplatin; the fourth group received MC hydroalcoholic extract and cisplatin, 96 hours before formalin test; the fifth group received morphine and the sixth group received cisplatin and mor-phine. The time of injected hind paw biting and licking time were measured in 5-minute interval for an hour. RESULTS: Results showed that formalin induced significant (P < 0.05) pain response (the first phase: 0-5 min and the second phase: 15-40 min after injection). Administration of MC extract before formalin injection showed significant (P < 0.05) decrease of pain responses in the first and second phase. Administration of cisplatin produced significant (P < 0.05) increase in pain response in both phases of formalin test. Injection of MC extract and cisplatin together have shown that MC is able to decrease the second phase of cisplatin-induced pain sig-nificantly (P < 0.05). Morphine decreased cisplatin-induced pain in the first and second phase of formalin test significantly ( P < 0.05). In comparison morphine has analgesic effects in the first phase and MC extract has anti inflammatory effects in the second phase of formalin test significantly (P < 0.05). CONCLUSION: MC and cisplatin have analgesic and painful neuropathic respective effects, and MC hydroalcoholic extract is able to decrease cisplatin-induced pain and inflammation better than morphine.A. Namvaran Abbas Abad M.H. Kayate Nouri A. Gharjanie F. Tavakoli 2011中国天然药物2011,9,2:3
4Effect of Salvia officinalis Hydroalcoholic Extract on Vincristine-induced Neuropathy in Mice显示文摘AIM:Vincristine is one of the most commonly used chemotherapeutic drugs to treat a variety of malignant diseases,including leukemia and lymphoma.Studies have shown that vincristine cause painful effects,whereas Salvia officinalis(SO) showed analgesic and anti-inflammatory effects.The aim of this study is to investigate the effects of the SO hydro-alcoholic extract on vincristine-induced peripheral neuropathy in mice in comparison with morphine.METHODS:Experiments were performed on 60 NMRI male mice weighing 25-30 g divided into six groups.The individual groups received normal saline,SO hydro-alcoholic extract,vincristine,SO hydro-alcoholic extract and vincristine(12 days before formalin test),morphine,and vincristine and morphine,respectively.The injected hind paw biting and licking was measured in a 5-minute interval for one hour.RESULTS:The results showed that formalin induce significant(P < 0.05) pain responses(the first phase:0-5 min and the second phase:15-40 min after injection).Administration of SO extract before formalin test showed significant(P < 0.05) decrease of pain response in the second phase.Administration of vincristine caused significant(P < 0.05) increase in the second phase of pain response.Injections of SO extract and vincristine showed that SO significantly(P < 0.05) decrease the second phase of vincristine-induced pain.Morphine decreased vincristine-induced pain in the first and second phase of formalin test significantly(P < 0.05).In comparison,morphine showed analgesic effects in the first phase and SO extract showed significant(P < 0.05) anti-inflammatory effects in the second phase of formalin test.CONCLUSION:Both SO and vincristine showed analgesic and painful neuropathic effects,suggesting that SO extract could be useful in the treatment of vincristine-induced peripheral neuropathic pain.Ali Namvaran Abbas Abad Mir Hadi Khayate Nouri Farzaneh Tavakkoli 2011中国天然药物2011,9,5:3
5Imaging resolution of biocatalytic activity using nanoscale scanning electrochemical microscopy显示文摘扫描电气化学的显微镜学代表一个强大的工具因为表面的电镀物品(化学药品) 描述,而是它的适用性在 microscale 在大多数情况中被限制了空间分辨率,和最大的挑战是为制造和纳米大小的尖端的使用按比例缩小到 nanoscale。这里,有纳米 electroactive 区域的磅 nanoelectrodes 为成像被制作并且采用金 nanoparticles (AuNPs ) 和在金表面上使不能调动的氧化还原作用活跃的酶的 bioelectrocatalytic 活动的分布。Jase M .Abad Alvaro Y. Tesio EmUiano Martinez-Perinan Felix Pariente Encamacion Lorenzo 2018Nano Research2018,11,8:2
6Estrogen receptor-alpha and -beta are expressed throughout postnatal development in the rat and rabbit growth plate显示文摘Nilsson O Abad V Chrysis D 2002J Endocrinol2002,173,3:2
7Determining optimal sale price and lot size when the supplier offers all-unit quantity discounts显示文摘Abad P L 1988Decision Sciences1988,19,3:2
8Progress in Chemical-Looping Combustion and Reforming technologies显示文摘Juan Adanez Alberto Abad Francisco Garcia-Labiano Pilar Gayan Luis F. de Diego 2011Progress in Energy and Combustion Science2011,,2:2
9Estimation of visceral fat is useful for the diagnosis of significant fibrosis in patients with non-alcoholic fatty liver disease显示文摘BACKGROUND Obesity is a risk factor for non-alcoholic fatty liver disease(NAFLD),although obese patients with NAFLD do not always develop significant fibrosis.The distribution of body fat could predict the risk of NAFLD progression.AIM To investigate the role of bioelectrical impedance-estimated visceral fat(VF)in assessing NAFLD severity.METHODS In this cross-sectional study,patients with biopsy-proven NAFLD were prospectively included.All patients underwent anthropometric evaluation,blood tests and bioelectrical impedance analysis.RESULTS Between 2017 and 2020,119 patients were included[66.4%male,56 years(SD 10.7),62.2%obese,61.3%with metabolic syndrome].Sixty of them(50.4%)showed significant fibrosis(≥F2)in liver biopsy.Age,VF and metabolic syndrome were associated with significant fibrosis(61 years vs 52 years,16.4 vs 13.1,73.3%vs 49.2%,respectively;P<0.001 for all).In the multivariate analysis,VF and age were independently associated with significant fibrosis(VF,OR:1.11,95%CI:1.02-1.22,P=0.02;age,OR:1.08,95%CI:1.03-1.12,P<0.01).A model including these variables showed and area under the receiver operating characteristic curve(AUROC)of 0.75,which was not inferior to transient elastography or NAFLD fibrosis score AUROCs.We developed a nomogram including age and VF for assessing significant fibrosis in routine practice.CONCLUSION VF is a surrogate marker of liver fibrosis in patients with NAFLD.Bioelectrical impedance analysis is an inexpensive and simple method that can be combined with age to guide patient referral when other resources may be unavailable.Marta Hernández-Conde Elba Llop Carlos Fernández Carrillo Beatriz Tormo Javier Abad Luis Rodriguez Christie Perelló Marta López Gomez JoséLuis Martínez-Porras Natalia Fernández Puga Maria Trapero-Marugan Enrique Fraga Carlos Ferre Aracil JoséLuis Calleja Panero 2020World Journal of Gastroenterology2020,26,42:2
10Transendoscopic uhrasonography with miniprobes 显示文摘Abad R Varas M J Espinos JC 2001Rev Esp Enferm Dig2001,93,4:1
11Hydroxyuea can eliminate transfusion requirements in children with severe beta-thalassemia显示文摘Bradai M Abad MT Pissards 2003Blood2003,102,4:1
12Adherence to evidence-based recommendations for prevention of ventilator-associated pneumonia:the survey says显示文摘Safdar N Abad CI 2007Respir Care2007,52,12:1
13G-CSF therapy of ongoing experi- mental allergic encephalomyelitis via chemokine and cytokinebased immune deviation 显示文摘Zavala F Abad S Ezine S 2002J Immuno12002,168,4:1
14G-CSF therapy of ongoingexperimental allergicencephalomyelitis via chemokine and cy-tokinebased immune deviation显示文摘Zavala F Abad S Ezine S 2002J Immunol2002,168,4:1
15Regulation of VIP production and secretion by murine lymphocytes显示文摘Martinez C Delgado M Abad C 1999J Neuroimmunol1999,93,12:1
16Diaphragmatic paralysis:pathology at the reach of the pediatric surgeon显示文摘Abad P Lloret J Martinez Ibanez VAbad P 2001Cir Pediatr2001,14,1:1
17Formic acid-perocyformic acid pulping of Aspenwood and optimization study显示文摘Abad By S Santos V Parajo J C 2000Holzforschung2000,,54:1
18Impaired nerve regeneration and enhanced neuroinflammatory response in mice lacking pituitary adenylyl cyclase activating peptide显示文摘Armstrong BD Abad C Chhith S Cheung-Lau G Hajji OE Nobuta H 2008Neuroscience2008,151,1:1
19The use of iron oxide as oxygen carrier in a chemical-looping reactor 显示文摘Abad A Mattisson T Lyngfelt A 2007Fuel2007,86,78:1
20Active Antifungal Substances from Natural Sources显示文摘ABAD M J ANSUATEGUI M BERMEJO P 2007Arkivoc2007,,7:1
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