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| 1 | Clinical features of hepatopulmonary syndrome in cirrhotic patients显示文摘瞄准:评估频率,临床并且帕拉肝肺症候群(HPS ) 并且到的临床的特征在伊朗在病人在这症候群的诊断决定他们的预兆的价值。方法:54 个肝脏硬化症的病人经历了对比由二位心脏病专家检测肺内、心内的分流的提高的回响心动描记法。动脉的血氧, O (2 ) 坡度(A-a ) 和正统说法被气体(ABG ) 测试的动脉的血测量。为 HPS 的诊断标准积极的病人被定义为表明肺内的动脉的膨胀的临床的 HPS 盒子和那些,但是另外的标准(动脉的血血氧不足) 都没被定义为 lHPS 盒子。HPS 频率,敏感,积极、否定的预兆的价值临床并且帕拉临床的特征被学习。结果:十(18.5%) 并且七(13%) 盒子分别地有临床、无临床症状的 HPS。最普通的病原学是肝炎 B。呼吸困难(100%) 和青紫(90%) 是最流行的临床的特征。呼吸困难并且打分别地是最敏感、特定的临床的特征。没有重要关系被发现在之间 HPS 和脾大,腹水,浮肿,黄疸,尿少,和并行的静脉。HPS 在肝炎 B 是更流行的。PaO (2 )<
70 并且动脉牙槽的坡度在 HPS 病人有最高的敏感。正统说法特性是 100% 。结论:与 75% 的否定预兆的价值(NPV ) 与 75% 的积极预兆的价值(PPV ) 和呼吸困难打是在 HPS 的诊断的最好的临床的因素症候群。PaO (2 )<
70 并且 P (A-a ) O (2 )>
30 并且他们的和,是在 HPS 病人的最珍贵的否定、积极的预兆的价值。 | Amir Houshang MohammadAlizadeh Seyed Reza Fatemi Vahid Mirzaee Manoochehr Khoshbaten Bahman Talebipour Afsaneh Sharifian Ziba Khoram Mohammad Reza Zali Farhad Haj-sheikh-oleslami MasoomehGholamreza-shirazi | 2006 | World Journal of Gastroenterology2006，12，12： | 12 |
| 2 | Comparison of Hybrid and Sequential Therapies for H elicobacter pylori Eradication in I ran: A Prospective Randomized Trial显示文摘 | Hossein Sardarian Hafez Fakheri Vahid Hosseini Tarang Taghvaei Iradj Maleki Marjan Mokhtare | 2012 | Helicobacter2012，，2： | 11 |
| 3 | The aflatoxin B1 isolating potential of two lactic acid bacteria显示文摘Objective:To determine lactic acid bacteria's capability to enhance the process of binding and isolating aflatoxin B1 and to utilize such lactic acid bacteria as a food supplement or probiotic products for preventing absorption of aflatoxin Bl in human and animal bodies.Methods:In the present research,the bacteria were isolated from five different sources.For surveying the capability of the bacteria in isolating aflatoxin Bl,ELISA method was implemented,and for identifying the resultant strains through 16S rRNA sequencing method,universal primers were applied.Results:Among the strains which were isolated,two strains of Lactobacillus pentosus and Lactobacillus beveris exhibited the capability of absorbing and isolating aflatoxin Bl by respectively absorbing and discharging 17.4%and 34.7%of the aforementioned toxin existing in the experiment solution.Conclusions:Strains of Lactobacillus pentosus and Lactobacillus beveris were isolated from human feces and local milk samples,respectively.And both strains has the ability to isolate or bind with aflatoxin Bl. | Adel Hamidi Reza Mirnejad Emad Yahaghi Vahid Behnod Ali Mirhosseini Sajad Amani Sara Sattari Ebrahim Khodaverdi Darian | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，9： | 8 |
| 4 | Nonlinear adaptive optimal control for vehicle handling improvement through steer-by-wire system显示文摘A control algorithm for improving vehicle handling was proposed by applying right angle to the steering wheel,based on the nonlinear adaptive optimal control(NAOC).A nonlinear 4-DOF model was initially developed,then it was simplified to a 2-DOF model with reasonable assumptions to design observer and optimal controllers.Then a simplified model was developed for steering system.The numerical simulations were carried out using vehicle parameters for standard maneuvers in dry and wet road conditions.Moreover,the hardware in the loop method was implemented to prove the controller ability in realistic conditions.Simulation results obviously show the effectiveness of NAOC on vehicle handling and reveal that the proposed controller can significantly improve vehicle handling during severe maneuvers. | Vahid Tavoosi Reza Kazemi Atta Oveisi | 2014 | Journal of Central South University2014，21，1： | 8 |
| 5 | Influence of dietary carbohydrases, individually or in combination with phytase or an acidifier, on performance, gut morphology and microbial population in broiler chickens fed a wheat-based diet显示文摘The objective of this study was to examine the effects of dietary carbohydrases(xylanase and b-glucanase; XG), individually or in combination with phytase or acidifier on the growth performance, carcass attributes, intestinal microbial counts and morphology in broiler chickens fed a wheat-based diet. A total of 240 one-day-old male broiler chicks were randomly allocated into 4 treatment groups with 6 replicates of 10 birds each. The dietary treatments included a basal diet, the basal diet with an enzyme complex containing XG, XG plus a microbial phytase(XG + P) and XG plus acidifier(XG + A). The results indicated that feed conversion ratio(FCR) was improved in broiler chickens which received XG + A during the entire production period(1 to 35 d) of the trial(P < 0.05). The broiler chickens fed XG + P had lower feed intake compared with the control group at 29 to 35 d of age. The experimental treatments had no effect on the body weight gain of broiler chickens. In carcass traits, except for spleen(P < 0.05), the dietary treatments had no effects on the carcass characteristics of broiler chickens. The birds which received diets supplemented with XG and XG + A had a lower weight of the spleen compare with the control. Addition of XG in combination with phytase(XG + P) resulted in a decrease in ileal enumeration of Escherichia coli at 35 d of age(P < 0.05). However, dietary treatments did not alter the population of ileal Lactobacilli in broiler chickens. Supplementing carbohydrases with phytase and acidifier(XG + P and XG + A) significantly increased the intestinal villus length at 35 d of age(P < 0.05). In conclusion, the present study demonstrated that supplementation of the wheat-based diet with a combination with carbohydrases and acidifier(XG + A) improves FCR in broiler chickens. Furthermore, combinations of carbohydrases with phytase(XG + P) and with acidifier(XG + A) decrease the E. coli counts and increase the villus length in broiler chickens. | Amin Roofchaei Vahid Rezaeipour Safieh Vatandour Faegheh Zaefarian | 2019 | Animal Nutrition2019，，1： | 8 |
| 6 | Seroepidemiology of bluetongue disease in small ruminants of northeast of Iran显示文摘Objective:To estimate the prevalence and distribution of bluetongue vims antibody in sheep and goats in 25 townships of Khorasan Razavi.Bluetongue is an infectious,non-contagious,arthropod born viral disease of ruminants and has been reported from most of the tropical and subtropical regions of the world.Methods:A total number of 1034 serum samples from sheep and goats were collected and transmitted to Serological Laboratory of Veterinary Council of Khorasan Razavi.Serums were screened for the presence of group-specific bluetongue virus antibody using competitive Enzyme Linked Immuno Sorbent Assay(c-ELISA).Kesults:The seropositivitv of sheep and goats for bluetongue was found to be 89.2%.The highest prevalence rate was seen in Taybad.Khalil-abad and Torbat-jam(100%)and the least prevalence rate was seen in Jovein(55%).Conclusions:The results showed that the majority of animals in the north-east of Iran are infected with bluetongue vims.High correlation between abortion history and seroposivity emphasize the economical importance of bluetongue virus in the sheep herds of the region. | Vahid Najarnezhad Mahin Rajae | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，6： | 7 |
| 7 | Effect of post-harvest UV-C irradiation and calcium chloride on enzymatic activity and decay of tomato(Lycopersicon esculentum L.)fruit during storage显示文摘Tomato is one of the extensively consumed vegetable crops worldwide. The regular consumption of tomato decreases the incidence of chronic degenerative diseases such as certain types of cancer and cardiovascular diseases. The objective of this study was to find an appropriate method that not only reduces tomatoes decay, but also maintains its post-harvest quality. A factorial experiment based on randomized complete block design with three replications was conducted to evaluate effects of ultraviolet(UV)-C and CaCl_2 applications on tomato during storage. The traits studied included ethylene, polygalacturonase(PG) activity, pectin methyl esterase(PME) activity, firmness, total phenol content, and fungal-induced decay were measured weekly during 35 days of storage. Both UV-C and CaCl_2 treatments had positive effects on tomato quality as compared to control treatment. The 3 and 4.5 k J m^(-2) levels of UV-C and 2% CaCl_2 had positive effects on quality characteristics, respectivly. Fruits treated by UV-C and CaCl_2 had higher phenol and firmness, and less PME activity, PG activity, ethylene production, and decay than the control fruits. In conclusion, increasing in storage duration significantly affected the fruits quality by increasing in ethylene, PME activity, PG activity, decay and decreasing the phenol content and firmness. But UV-C and CaCl_2 led to significant decrease in this adverse impact relative to control treatment. | Saeideh Mansourbahmani Behzad Ghareyazie Sepideh Kalatejari Reza Salehi Mohammadi Vahid Zarinnia | 2017 | Journal of Integrative Agriculture2017，16，9： | 7 |
| 8 | Polymorphism in the interleukin-17A promoter contributes to gastric cancer显示文摘AIM:To evaluate the contribution of the G-197A polymorphism in the interleukin-17(IL-17)promoter region to gastric cancer risk in an Iranian population.METHODS:We performed a case control study using samples from 161 individuals with gastric cancer and171 healthy controls.For each individual,the G-197A genotype was determined by restriction fragment length polymorphism analysis of polymerase chain reaction-amplified fragments.Statistical analyses were performed to determine whether any demographic or behavioral factors,infection with Helicobacter pylori(H.pylori),or a particular G-197A genotype was associated with gastric cancer risk.RESULTS:We found that the G-197A genotype wassignificantly associated with increased gastric cancer risk(P=0.001).Patients who were homozygous(AA)at position-197 were 2.9 times more likely to develop disease(95%CI:1.56-5.4;P=0.001).Furthermore,logistic regression analysis revealed that the presence of a single A allele increased the risk of gastric cancer up to 1.7-fold(95%CI:1.26-2.369;P=0.001).This association was observed for early stage gastric adenocarcinomas only,and was not linked to H.pylori infection.CONCLUSION:These results suggest that carrying one or more G-197A polymorphisms at position-197 in the IL-17 promoter region significantly increases gastric cancer risk in this patient population. | Alireza Rafiei Vahid Hosseini Ghasem Janbabai Abuzar Ghorbani Abulghasem Ajami Touraj Farzmandfar Maedeh Darzyani Azizi Jeremy J Gilbreath D Scott Merrell | 2013 | World Journal of Gastroenterology2013，19，34： | 7 |
| 9 | Polyp detection rate and pathological features in patients undergoing a comprehensive colonoscopy screening显示文摘AIM To identify the prevalence, and clinical and pathologic characteristic of colonic polyps among Iranian patients undergoing a comprehensive colonoscopy, and determine the polyp detection rate(PDR) and adenoma detection rate(ADR).METHODS In this cross-sectional study, demographics and epidemiologic characteristics of 531 persons who underwent colonoscopies between 2014 and 2015 at Mehrad gastrointestinal clinic were determined. Demographics, indication for colonoscopy, colonoscopy findings, number of polyps, and histopathological characteristics of the polyps were examined for each person.RESULTS Our sample included 295(55.6%) women and 236(44.4%) men, with a mean age of 50.25 ± 14.89 years. Overall PDR was 23.5%(125/531). ADR and colorectal cancer detection rate in this study were 12.8% and 1.5%, respectively. Polyps were detected more significantly frequently in men than in women(52.8% vs 47.2%, P < 0.05). Polyps can be seen in most patients after the age of 50. The average age of patients with cancer was significantly higher than that of patients with polyps(61.3 years vs 56.4 years, P < 0.05). The majority of the polyps were adenomatous. More than 50% of the polyps were found in the rectosigmoid part of the colon.CONCLUSION The prevalence of polyps and adenomas in this study is less than that reported in the Western populations. In our patients, distal colon is more susceptible to developing polyps and cancer than proximal colon. | Hamid Asadzadeh Aghdaei Ehsan Nazemalhosseini Mojarad Sara Ashtari Mohmad Amin Pourhoseingholi Vahid Chaleshi Fakhrosadat Anaraki Mehrdad Haghazali Mohammad Reza Zali | 2017 | World Journal of Gastrointestinal Pathophysiology2017，8，1： | 6 |
| 10 | Climate change and agriculture:Impacts and adaptive responses in Iran显示文摘The impacts of climate change on agriculture are still shadowed with uncertainty.However,climate change is expected to adversely affect Iran's agricultural practices through changes in precipitation,temperature and carbon dioxide fertilization.Therefore,adaptation of this sector to the increasing weather events is imperative.This study is aimed to document the likely impacts of climate change on Iran's agriculture and the current adaptation efforts made by government and farmers.The review of literature shows that changes in rainfall and water endowments will have significant impacts on crop yield,crops' water requirements and income and welfare of farm families.The extent of the changes in yield depends on the crop type,assumptions related to the CO_2 fertilization effect,climate scenarios and adaptation abilities.On adaptation,the government's efforts have been distinguished in the improving agricultural productivity and irrigation development based on current technology,developing new technologies and policy reforms.Farmers' adaptive responses have also been identified.Some conclusions and recommendations are offered to increase the adaptive capacity of farmers and reduce negative impacts of climate change. | Vahid Karimi Ezatollah Karami Marzieh Keshavarz | 2018 | Journal of Integrative Agriculture2018，17，1： | 6 |
| 11 | Daily and Monthly Suspended Sediment Load Predictions Using Wavelet Based Artificial Intelligence Approaches显示文摘In the current study, the efficiency of Wavelet-based Least Square Support Vector Machine(WLSSVM) model was examined for prediction of daily and monthly Suspended Sediment Load(SSL) of the Mississippi River. For this purpose, in the first step, SSL was predicted via ad hoc LSSVM and Artificial Neural Network(ANN) models; then,streamflow and SSL data were decomposed into subsignals via wavelet, and these decomposed sub-time series were imposed to LSSVM and ANN to simulate discharge-SSL relationship. Finally, the ability of WLSSVM was compared with other models in multistep-ahead SSL predictions. The results showed that in daily SSL prediction, LSSVM has better outcomes with Determination Coefficient(DC)=0.92 than ad hoc ANN with DC=0.88. However unlike daily SSL, in monthly modeling, ANN has a bit accurate upshot.WLSSVM and wavelet-based ANN(WANN) models showed same consequences in daily and different in monthly SSL predictions, and adding wavelet led to more accuracy of LSSVM and ANN. Furthermore,conjunction of wavelet to LSSVM and ANN evaluated via multi-step-ahead SSL predictions and, e.g.,DC LSSVM=0.4 was increased to the DC WLSSVM=0.71 in 7-day ahead SSL prediction. In addition, WLSSVM outperformed WANN by increment of time horizon prediction. | Vahid NOURANI Gholamreza ANDALIB | 2015 | Journal of Mountain Science2015，12，1： | 6 |
| 12 | Helicobacter pylori infection and expression of DNA mismatch repair proteins显示文摘瞄准:为了决定 DNA (MMR ) 蛋白质的表示,包括 hMLH1 和 hMSH2,在在病人与或没有 Helicobacter 的胃的上皮细胞, pylori (H pylori ) 感染了胃炎。方法:五十个 H pylori 积极的病人和 50 H pylori 否定的病人在学习被注册。在有非溃疡消化不良的病人的内视镜检查法期间,二窦和二语料库活体检视为组织学的检查(Giemsa 污点) 并且为免疫被拿 hMLH1 和 hMSH2 的组织化学的染色。结果:为染色的 hMLH1 表明了确实的上皮的房间原子核的百分比是 84.14 +/-7.32% 在 H pylori 否定的病人,当它是 73.34 +/- 时 10.10% 在 H pylori 积极的病人(P <
0.0001 ) 。没有有效差量关于为染色的 hMSH2 表明了确实的上皮的房间原子核的百分比在二个组之间被看见(81.16 +/-8.32% 在 pylori 否定的 H 对 78.24 +/-8.71% 在 H pylori 积极的病人;P = 0.09 ) 。结论:这研究显示 H pylori 可能通过它影响 DNA MMR 系统的能力部分地至少支持胃的癌的开发。 | Vahid Mirzaee Mahsa Molaei Hamid Mohaghegh Shalmani Mohammad Reza Zali | 2008 | World Journal of Gastroenterology2008，14，43： | 5 |
| 13 | Application of artificial neural network to predict Vickers microhardness of AA6061 friction stir welded sheets显示文摘The application of friction stir welding(FSW) is growing owing to the omission of difficulties in traditional welding processes. In the current investigation, artificial neural network(ANN) technique was employed to predict the microhardness of AA6061 friction stir welded plates. Specimens were welded employing triangular and tapered cylindrical pins. The effects of thread and conical shoulder of each pin profile on the microhardness of welded zone were studied using tow ANNs through the different distances from weld centerline. It is observed that using conical shoulder tools enhances the quality of welded area. Besides, in both pin profiles threaded pins and conical shoulders increase yield strength and ultimate tensile strength. Mean absolute percentage error(MAPE) for train and test data sets did not exceed 5.4% and 7.48%, respectively. Considering the accurate results and acceptable errors in the models' responses, the ANN method can be used to economize material and time. | Vahid Moosabeiki Dehabadi Saeede Ghorbanpour Ghasem Azimi | 2016 | Journal of Central South University2016，23，9： | 5 |
| 14 | Methylenetetrahydrofolate reductase C677T genotype affects promoter methylation of tumor-specific genes in sporadic colorectal cancer through an interaction with folate/vitamin B_(12) status显示文摘AIM:To evaluate joint effects of Methylentetra-hydrofolate reductase(MTHFR) C677T genotypes,and serum folate/vitamin B12 concentrations on promoter methylation of tumor-associated genes among Iranian colorectal cancer patients. METHODS:We examined the associations between MTHFR C677T genotype,and promoter methylation of P16,hMLH1,and hMSH2 tumor-related genes among151 sporadic colorectal cancer patients. The promoter methylation of tumor-related genes was determined by methylation-specific PCR. Eighty six patients from whom fresh tumor samples were obtained and 81 controls were also examined for serum folate and vitamin B12 concentrations by a commercial radioimmunoassay kit. RESULTS:We found 29.1% of cases had tumors with at least one methylated gene promoter. In case-case comparison,we did not find a significant association between methylation in tumors and any single genotype. However,in comparison to controls with the CC genotype,an increased risk of tumor methylation was associated with the CT genotype(OR = 2.5;95% CI,1.1-5.6) . In case-case comparisons,folate/vitamin B12 levels were positively associated with tumor methylation. Adjusted odds ratios for tumor methylation in cases with high(above median) versus low(below median) serum folate/vitamin B12 levels were 4.9(95% CI,1.4-17.7) ,and 3.9(95% CI,1.1-13.9) ,respectively. The frequency of methylated tumors was significantly higher in high methyl donor than low methyl donor group,especially in those with MTHFR CT(P = 0.01) ,and CT/TT(P = 0.002) genotypes,but not in those with the CC genotype(P = 1.0) . CONCLUSION:We conclude that high concentrations of serum folate/vitamin B12 levels are associated with the risk of promoter methylation in tumor-specific genes,and this relationship is modified by MTHFR C677T genotypes. | Pooneh Mokarram Fakhraddin Naghibalhossaini Mehdi Saberi Firoozi Seyed Vahid Hosseini Ahmad Izadpanah Heshmetalah Salahi Seyed Ali Malek-Hosseini Abdoulrasool Talei Mehra Mojallal | 2008 | World Journal of Gastroenterology2008，14，23： | 5 |
| 15 | 等通道转角挤压及后续热处理参数对半固态7075铝合金显微组织的影响(英文)显示文摘研究等通道转角挤压(ECAP)及后续加热到半固态温度对7075铝合金显微组织的影响。7075铝合金的显微组织受ECAP道次、ECAP路径、后续加热温度和保温时间等参数的影响。采用实验及Taguchi法探讨上述参数对7075铝合金的微观特性包括晶粒尺寸及形状因子的影响。结果表明:5道次ECAP、路径BA及后续630°C等温处理15 min是合金获得半固态显微组织的较佳工艺条件;加工路径和保温时间对晶粒尺寸的影响最大,而ECAP道次和加热温度对晶粒尺寸的影响最小。形状因子受加工路径、保温时间和加热温度的影响较大,而受ECAP道次的影响较小。 | Ramin MESHKABADI Ghader FARAJI Akbar JAVDANI Vahid POUYAFAR | 2016 | Transactions of Nonferrous Metals Society of China2016，26，12： | 4 |
| 16 | 以有序介孔二氧化硅纳米粒子为可再生催化剂多组分一锅法合成4H-氧萘衍生物(英文)显示文摘A simple,efficient and environmentally benign protocol for the synthesis of 4H-chromene derivatives was developed using bio-compatible,neutral,and recoverable mesoporous silica nanoparticles as a catalyst.The 4H-chromene derivatives were obtained in excellent yields by three component reaction of an aldehyde or isatin,malononitrile,and cyclic 1,3-diketones in ethanol at 60℃. | Yaghoub SARRAFI Ebrahim MEHRASBI Amir VAHID Mahmood TAJBAKHSH | 2012 | 催化学报2012，33，9： | 4 |
| 17 | Experimental Investigation of the Effects of Various Plasma Actuator Configurations on Lift and Drag Coefficients of a Circular Cylinder Including the Effects of Electrodes显示文摘In this paper, the effects of the existence of plasma actuator electrodes and also various configurations of the actuator for controlling the flow field around a circular cylinder are experimentally investigated. The cylinder is made of PVC (Polyvinyl Chloride) and considered as a dielectric barrier. Two electrodes are flush-mounted on the surface of the cylinder and are connected to a DC high voltage power supply for generation of electrical discharge. Pressure distribution results show that the existence of the electrodes and also the plasma are able to change the pressure distribution around the cylinder and consequently the lift and drag coefficients. It is found that the effect of the existence of the electrodes is comparable with the effect of plasma actuator in controlling the flow field around the cylinder and this effect is not reported by other researchers. Eventually it is concluded that the existence of the electrodes or any extra objects on the cylinder and also the existence of the plasma are capable of changing the flow field structure around the cylinder so that the behavior of the lift and drag coefficients of the cylinder will be changed significantly. | Siavash TABATABAEIAN Masoud MIRZAEI Asghar SADIGHZADEH Vahid DAMIDEH Abdollah SHADARAM | 2012 | Chinese Journal of Aeronautics2012，25，3： | 4 |
| 18 | Diversity of woody plant species and their relationship to physiographic factors in central Zagros forests (Case study: Perc forest, Khorramabad, Iran)显示文摘Topography is the most factor that has the greatest impact of all factor that affect the distribution.To study the diversity of trees and shrub species in the Perc forest situated in Khorramabad,Lorestan,140 circular plots of 1200 m^2 in a grid of 300 m 9 250 m were surveyed,using a systematic random sampling method.In each plot,the Margalef richness index,Shannon–Wiener diversity index,Hill's N_1 and Simpson indices and the evenness index of Simpson and Smith-Wilson were calculated and ordered on the basis of different classes of elevation,exposition and slope.The results indicated that slope did not have any significant effect on the indices.Exposition and elevation classes significant impacted the richness and diversity indices,but did not influence evenness.In general,the highest plant diversity was observed for slopes less than 15 %,northern aspects,without geographical direction,and elevations of 2100–2200 m.This information can be very useful in achieving the goals for sustainable management of forests.In addition to greater protection for regions with high diversity and reforestation(compatible species) in degraded area,we can help increase diversity in forests. | Ramin Hosseinzadeh Javad Soosani Vahid Aiijani Sheyda Khosravi Hamdieh Karimikia | 2016 | Journal of Forestry Research2016，27，5： | 4 |
| 19 | 搅拌摩擦焊含铜嵌入板的6061-T6铝合金(Al/Cu/Al)的显微组织和力学性能(英文)显示文摘将两块6061-T6板中间嵌入一块纯铜板(Al/Cu/Al),利用搅拌摩擦焊(FSW)技术焊合,研究铜板插入对焊接接头性能的影响,并与无铜板的搅拌摩擦焊AA 6061(Al/Al)的研究结果进行比较。用光学显微镜和扫描电镜观察焊接样品的显微组织,用X射线衍射分析Al/Cu/Al样品的相组成。在转速为1000 r/min和焊接速度为25 mm/min条件下观察到Al/Cu/Al焊接接头无缺陷。焊核区的显微组织观察结果显示类似复合物结构的形成促进了铝和铜的冶金结合。XRD结果显示形成了金属间化合物(IMCs),如Al_4Cu_9和Al_2Cu。由于其更高的位错密度,有Cu板的焊接样品的硬度较高,且IMCs存在的区域其硬度值明显更高。由于铝和铜之间更强的冶金结合,有铜板的焊接接头的极限抗拉强度比无铜板的接头更高。 | Vahid M.Khojastehnezhad Hamed H.Pourasl | 2018 | Transactions of Nonferrous Metals Society of China2018，28，3： | 4 |
| 20 | Enhancement of CO_2 adsorption on nanoporous chromium terephthalate(MIL-101) by amine modification显示文摘Carbon dioxide(CO 2) adsorption on a standard metal-organic framework MIL-101 and a pentaethylenehexamine modified MIL-101(PEHAMIL-101) are investigated and compared in this study.The adsorbent samples were characterized by XRD,FT-IR and nitrogen adsorptiondesorption isotherms analysis.CO 2 adsorption capacity was measured by a volumetric method.MIL-101 and PEHA-MIL-101 exhibited CO 2 adsorption capacities of 0.85 and 1.3 mmol CO 2 /g adsorbent at 10 bar and 298 K,respectively.It is observed that CO 2 adsorption capacity was fairly improved about 50% after amine modification. | Mansoor Anbia Vahid Hoseini | 2012 | Journal of Natural Gas Chemistry2012，21，3： | 4 |
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