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| 1 | 双酶水解玉米醇溶蛋白制备抗氧化肽的工艺优化显示文摘为了制备抗氧化活性肽,利用Alcalase碱性蛋白酶和中性蛋白酶分步酶解玉米醇溶蛋白。在单因素的基础上,以1.1-二苯基苦基苯肼(DPPH·)自由基清除率、羟基自由基清除率和水解度(DH)为响应值,采用响应面(RSM)中心组合实验,选取Alcalase碱性蛋白酶加酶量、中性蛋白酶与Alcalase碱性蛋白酶活力之比、底物浓度为自变量,探讨最佳酶解工艺条件。采用Design-Expert软件,通过响应面优化确定修正后各因素的最佳工艺条件为:Alcalase碱性蛋白酶加酶量12880 U/(g底物)、中性蛋白酶与Alcalase碱性蛋白酶活力之比为1∶4,底物浓度为3.4%。在此修正条件下,DPPH·自由基清除率为42.98%,水解度为32.18%,与预测值的相对误差为1.04%。浓度为20 mg/m L时,玉米醇溶蛋白的DPPH·自由基清除率和羟基自由基清除率分别为同浓度VC的85.8%和67.0%。 | 徐飞 成向荣 Riyadh 施用晖 乐国伟 | 2015 | 食品工业科技2015，36，21： | 7 |
| 2 | New shakedown criterion and permanent deformation properties of unbound granular materials显示文摘Unbound granular material specifications for road pavements in Australia are primarily based on physical material specification rather than mechanical characterisation. This simplified approach does not reflect the actual material performance under repeated dynamic traffic loads. There is a little information available on the influence of the local crushed rock properties and compacted layer properties on permanent deformation (PD). This study aims to characterise the local unbound granular materials in Victoria according to their PD behaviour under repeated loads and to develop a suitable shakedown criterion that could describe the PD of the tested materials to simplify the flexible pavement design. Repeated-load triaxial tests were conducted over several samples with a range of moisture contents, gradations, densities, and stress conditions. The laboratory test results showed that PD behaviour was influenced by several factors. In addition, the tested subbase-specified unbound granular materials reflect high PD resistance that is almost equivalent to basequality unbound granular materials. This may indicate that current requirements for the subbase-quality unbound granular materials are over-prescribe. Moreover, as the existing shakedown criterion was not applicable for the multi-stage repeated-load triaxial test and the local tested materials, a new shakedown criterion and new boundaries are proposed based on the PD behaviour. In the proposed criterion, the shakedown ranges are identified based on the curve angle of the PD vs. logarithm of the number of loading cycles, and this new criterion was validated using several materials from existing literature. The local tested base and subbase materials can be assigned as Range A when PD\1%, Range B when 1%\PD\3%, and Range C when PD[3%. The proposed criterion could provide a useful and quick approach to assess the PD of the unbound granular materials with both single and multistages of stresses. | Ali Alnedawi Kali Prasad Nepal Riyadh Al-Ameri | 2019 | Journal of Modern Transportation2019，27，2： | 3 |
| 3 | Effect of vertical stress rest period on deformation behaviour of unbound granular materials:Experimental and numerical investigations显示文摘Repeated load triaxial test is used to assess the deformation behaviour of unbound granular materials(UGMs) in flexible road pavements. Repeated load pulse characteristics(i.e. shape, loading period and rest period) are the stress configurations used in the experimental set-up to simulate the passing axle loads. Some researchers and standard testing protocols suggest a rest period of varying durations after a loading phase. A thorough review of existing literature and practises has revealed that there is no agreement about the effect of the rest period of vertical stress pulse on the deformation behaviour of the UGMs. Therefore,the main objective of this study is to investigate the effect of repeated stress rest period on the deformation behaviour of UGMs experimentally. Experiments are conducted, both with and without rest period, using basalt and granite crushed rocks from Victoria, Australia. Furthermore, in order to gain insight into the effect of the rest period, finite element modelling is also developed. Both the experimental and modelling results show that the rest period has a noticeable effect on both resilient and permanent deformation behaviours of UGMs. It is, therefore, recommended to take extra precautions while adopting a particular standard testing protocol and to supplement the results by additional tests with different loading configurations. | Ali Alnedawi Kali Prasad Nepal Riyadh Al-Ameri Mohanad Alabdullah | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，1： | 2 |
| 4 | Coxiella burnetii,the causative agent of Q fever in Saudi Arabia:molecular detection from camel and other domestic livestock显示文摘Objective:To detect Coxiella burnetii(C.burnetii)DNA in clinical specimens from camel,goats,cattle and sheep in the Kingdom of Saudi Arabia.Methods:A total of 367 clinical samples including blood,milk,faeces and urine were collected from different livestock and subjected to PCR amplification using primers which amplify transposon-like region and transposase gene.Results:Positive amplification from both regions was obtained from camel,goats and cattle but not from sheep.A percentage of 10.8%samples yielded positive PCR amplification from both blood and milk,where 15 of 139 blood and 16 of 148 milk samples were positive.Faeces and urine showed higher percentages of positive samples reaching 40.8%and 23.8%respectively.Conclusions:The preferred route of shedding in camel appeared to be the faeces followed by urine,while that of goats appeared to be the faeces and that of the cattle appeared to be the milk. | Osama B.Mohammed Abdulrahman A.Jarelnabi Riyadh S.Aljumaah Mohammed A.Alshaikh Amel O.Bakhiet Sawsan A.Omer Abdulaziz N.Alagaili Mansour F.Hussein | 2014 | Asian Pacific Journal of Tropical Medicine2014，7，9： | 2 |
| 5 | AASHTO-LRFD Live Load Distribution for Beam-and-Slab Bridges:Limitations and Applicability显示文摘 | Zaher Y Riyadh H | 2007 | Journal of Bridge Engineering2007，12，6： | 1 |
| 6 | Perfusion CT for head and neck tumors: pilot study显示文摘 | Zoran R Riyadh AO John PD | 2005 | AJNR2005，26，5： | 1 |
| 7 | 也门与中国产香丝草挥发油的化学成分分析和比较显示文摘目的:分析也门与中国产香丝草挥发油的化学成分,比较两者差异。方法:采用水蒸气蒸馏法提取也门及中国产香丝草的挥发油,运用气相色谱-质谱联用法(GC-MS)对挥发油进行组分分析,将两者的成分差异进行了比较。结果:从也门产香丝草挥发油中鉴定了34个成分,相对含量最多的分别为醇类(47.77%)、烯类(29.15%)、酯类(9.64%),主要为雪松烯醇(18.54%)和环氧化香橙烯(18.75%);从中国产香丝草挥发油中鉴定了56个成分,以酯类(31.20%)、烯类(28.05%)、醇类(14.29%)等挥发性物质为主,包括异戊酸香叶酯(18.81%)、反式--佛手柑油烯(10.31%)。结论:也门与中国产香丝草挥发油的组成具有较大的差异,是两者香味迥异的物质基础,也是也门产香丝草制作香料、美食的科学依据。 | 成向荣 Riyadh A.S.Thabit 王伟 史华伟 施用晖 乐国伟 | 2013 | 现代生物医学进展2013，13，36： | 1 |
| 8 | On the use of compensatory strategies in simultaneous in- terpretation 显示文摘 | Al-Khanji Raja E1-Shiyab Said & Riyadh Hussein | 2000 | Meta2000，，3： | 1 |
| 9 | Association of HLA loci alleles and antigens in Saudi patients with vitiligo显示文摘 | Abdullah Abanmi Fahad AI Harthi Riyadh AI Baqami | 2006 | Arch Dermatol Res2006，298，7： | 1 |
| 10 | A aacile one-pot synthesis of pyridothieno triazolo pyrimidin-5-one显示文摘 | Riyadh S M Abdallah M A Abbas I M | 2006 | Int J Pure Appl Chem2006，1，1： | 1 |
| 11 | Inelastic Damage Analysis of Reinforced Concrete Bridge Columns Based on Degraded Monotonic Energy 显示文摘 | Riyadh A Hindi Robert G Sexmith | 2004 | Journal of Bridge Engineering ASCE2004，9，4： | 1 |
| 12 | Inelastic Damage Analysis of Reinforced Concrete Bridge Columns Based on Degraded Monotonic Energy显示文摘 | Riyadh A Hindi Robert G Sexsmith | 2004 | Journal of Bridge Engi- neering2004，4，： | 1 |
| 13 | A Proposed Damage Model for RC Bridge Columns Under Cyclic Loading 显示文摘 | Riyadh A Hindi Robert G Sexmith | 2001 | Earthquake Spectra2001，17，2： | 1 |
| 14 | Microstructure characterization of granular materials显示文摘 | Riyadh Al-Raoush | 2007 | Physica A2007，377，54： | 1 |
| 15 | Histological evalua- tion of contaminated furcal perforation in dog' s teeth repaired by MTA with or without internal matrix 显示文摘 | Abdullah AD Saad AN Riyadh Saudi A | 2007 | Oral Surg2007，103，3： | 1 |
| 16 | mCP-1:potential role in pulmonary fibrosis显示文摘 | wolf G Kalluri R Riyadh F | | 0，，07： | 1 |
| 17 | Correlation between the AKI classification and outcome显示文摘 | Ostermann M Chang R Riyadh ICU Program Users Group | | 0，，： | 1 |
| 18 | AASHTO-LRFD Live Load Distribution for Beam-and-Slab Bridges: Limita- tions and Applicability显示文摘 | Zsher Yousif and Riyadh Hindi | 2007 | Journal of Bridge Engineer- ing2007，12，6： | 1 |
| 19 | Mortality after the 2003 invasion of Iraq:a cross-sectional cluster sample survey显示文摘 | Gilbert B Riyadh L Shannon D | 2006 | Lancet2006，368，9545： | 1 |
| 20 | Comparison of Adults with Insulin Resistance (IR) in Latent Autoimmune Diabetes Versus IR in Glutamic Acid Decar- boxylase Antibody-negative Diabetes显示文摘 | Sameer D Salem Riyadh Saif-Ali Sekaran Muniandy | 2014 | Annals of the Acade- my of Medicine Singapore2014，43，2： | 1 |
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