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| 1 | Accuracy of urea breath test in Helicobacter pylori infection: Meta-analysis显示文摘AIM: To quantitatively summarize and appraise the available evidence of urea breath test(UBT) use to diagnose Helicobacter pylori(H. pylori) infection in patients with dyspepsia and provide pooled diagnostic accuracy measures.METHODS: We searched MEDLINE, EMBASE, Cochrane library and other databases for studies addressing the value of UBT in the diagnosis of H. pylori infection. We included cross-sectional studies that evaluated the diagnostic accuracy of UBT in adult patients with dyspeptic symptoms. Risk of bias was assessed using QUADAS(Quality Assessment of Diagnostic Accuracy Studies)-2 tool. Diagnostic accuracy measures were pooled using the random-effects model. Subgroup analysis was conducted by UBT type(13C vs 14C) and by measurement technique(Infrared spectrometry vs Isotope Ratio Mass Spectrometry).RESULTS: Out of 1380 studies identified, only 23 met the eligibility criteria. Fourteen studies(61%) evaluated 13 C UBT and 9 studies(39%) evaluated 14 C UBT. There was significant variation in the type of reference standard tests used across studies.Pooled sensitivity was 0.96(95%CI: 0.95-0.97) andpooled specificity was 0.93(95%CI: 0.91-0.94). Likelihood ratio for a positive test was 12 and for a negative test was 0.05 with an area under thecurve of 0.985. Meta-analyses were associated with a significant statistical heterogeneity that remained unexplained after subgroup analysis. The included studies had a moderate risk of bias.CONCLUSION: UBT has high diagnostic accuracy for detecting H. pylori infection in patients with dyspepsia. The reliability of diagnostic meta-analytic estimates however is limited by significant heterogeneity. | Mazen Ferwana Imad Abdulmajeed Ali Alhajiahmed Wedad Madani Belal Firwana Rim Hasan Osama Altayar Paul J Limburg Mohammad Hassan Murad Bandar Knawy | 2015 | World Journal of Gastroenterology2015，21，4： | 45 |
| 2 | A handy review of carpal tunnel syndrome:From anatomy to diagnosis and treatment显示文摘Carpal tunnel syndrome(CTS) is the most commonly diagnosed disabling condition of the upper extremities. It is the most commonly known and prevalent type of peripheral entrapment neuropathy that accounts for about 90% of all entrapment neuropathies. This review aims to provide an outline of CTS by considering anat-omy, pathophysiology, clinical manifestation, diagnostic modalities and management of this common condition, with an emphasis on the diagnostic imaging evaluation. | Mohammad Ghasemi-rad Emad Nosair Andrea Vegh Afshin Mohammadi Adam Akkad Emal Lesha Mohammad Hossein Mohammadi Doaa Sayed Ali Davarian Tooraj Maleki-Miyoab Anwarul Hasan | 2014 | World Journal of Radiology2014，6，6： | 24 |
| 3 | Effect of Salicylic Acid on Salinity-induced Changes in Brassica juncea显示文摘Seeds of Indian mustard (Brassica juncea (L.) Czern. et Coss.) were exposed to 0, 50, 100 and 150 mmol/L NaCl for 8 h and seeds were sown in an earthen pot. These stressed seedlings were subsequently sprayed with 10 μmol/L salicylic acid (SA) at 30 d and were sampled at 60 d to assess the changes in growth, photosynthesis and antioxidant enzymes. The seedlings raised from the seeds treated with NaCl had significantly reduced growth and the activities of carbonic anhydrase, nitrate reductase and photosynthesis, and the decrease was proportional to the increase in NaCl concentration. However, the antioxidant enzymes (catalase, peroxidase and superoxide dismutase) and proline content was enhanced in response to NaCl and/or SA treatment, where their interaction had an additive effect. Moreover, the toxic effects generated by the lower concentration of NaCl (50 mmol/L) were completely overcome by the application of SA. It was, therefore, concluded that SA ameliorated the stress generated by NaCl through the alleviated antioxidant system. | Mohammad Yusuf Syed Aiman Hasan Barket Ali Shamsul Hayat Qazi Fariduddin Aqil Ahmad | 2008 | Journal of Integrative Plant Biology2008，50，9： | 16 |
| 4 | Modeling Delay and Packet Drop in Networked Control Systems Using Network Simulator NS2显示文摘Wireless Networked Control Systems (WNCS) are used to implement a control mechanism over a wireless network that is capable of carrying real-time traffic. This field has drawn enormous attention from current researchers because of its flexibility and robustness. However, designing efficient WNCS over Mobile Ad Hoc Networks (MANET) is still a challenging topic because of its less-predictable aspects, such as inconsistent delay, packet drop probability, and dynamic topology. This paper presents design guidelines for WNCS over MANET using the Network Simulator version 2, NS2 software. It investigates the impact of packet delay and packet drop under the AODV and DSR routing protocols. The simulation results have been compared to MATLAB results for validation. | Mohammad Shahidul Hasan Christopher Harding Alison Griffiths | 2005 | International Journal of Automation and computing2005，2，2： | 9 |
| 5 | Effect of Heat Treatment on Microstructure of Modified Cast AISI D3 Cold Work Tool Steel显示文摘The effects of heat treatment on the microstructure of modified cast high chromium high carbon AISI D3 steel were studied.The modified AISI D3 steel was developed by replacing part of chromium with niobium and titanium,in which chromium carbide was partially replaced with MC carbides.The cast samples produced by investment casting were heat treated under different conditions.The microstructures of the samples were studied by optical microscope and scanning electron microscope equipped with EDS analyzer.To determine the optimized homogenizing process,the effects of homogenizing treatment on the microstructure and the morphology of carbides were also studied.The results show that the MC carbides are not changed in shape and amounts during high temperature homogenizing,whereas the M3C carbides are reduced in amount and become semiglobular in shape,and the homogeneity of microstructure is improved. | Shahram Kheirandish Hasan Saghafian Jalal Hedjazi Mohammad Momeni | 2010 | Journal of Iron and Steel Research(International)2010，17，9： | 8 |
| 6 | Molybdenite alkali fusion and leaching:reactions and mechanism显示文摘从 Sarcheshmeh 辉钼矿的 MoO3 的生产经由一个 pyro-hydrometallurgical 过程专注 studied.The 辉钼矿专注并且钠碳酸盐是 premixed 并且在空气下面熔化了 atmosphere.Then 熔化产品在水里被沥滤,溶解的铝作为铵 molybdate.The 铵 molybdate 被恢复然后被锻烧生产 mo-lybdic oxide.At 熔化阶段。 | Reza Ebrahimi-Kahrizsangi Mohammad Hasan Abbasi Ali Saidi | 2010 | International Journal of Minerals,Metallurgy and Materials2010，17，2： | 7 |
| 7 | Effect of probiotic Lactobacillus plantarum Dad-13 powder consumption on the gut microbiota and intestinal health of overweight adults显示文摘BACKGROUND Shifting on lifestyle,diet,and physical activity contributed on increasing number of obese people around the world.Multiple factors influence the development of obesity.Some research suggested that gut microbiota(GM)plays an important role in nutrient absorption and energy regulation of individuals,thus affecting their nutritional status.Report of Indonesia Basic Health Research showed that the prevalence of obesity in every province tended to increase.Although the root cause of obesity is excessive calorie intake compared with expenditure,the differences in gut microbial ecology between healthy and obese humans may affect energy homeostasis.GM affect body weight,especially obesity.Probiotics that are consumed while alive and able to colonize in the intestine are expected to increase the population of good bacteria,especially Bifidobacteria and Lactobacilli,and suppress pathogens such as Enterobacteriaceae and Staphylococcus.The strain of L.plantarum Dad-13 has been demonstrated to survive and colonize in the gastrointestinal tract of healthy Indonesian adults who consume fermented milk containing L.plantarum Dad-13.The consumption of probiotic L.plantarum Dad-13 powder decreased E.coli and non-E.coli coliform bacteria in school-aged children in Indonesia.L.plantarum is a dominant bacterium in the average Indonesian’s GM.For this reason,this bacterium is probably a more suitable probiotic for Indonesians.AIM To determine the effect of the consumption of indigenous probiotic Lactobacillus plantarum Dad-13 powder in overweight adults in Yogyakarta(Indonesia).METHODS Sixty overweight volunteers with a body mass index(BMI)equal to or greater than 25 consume indigenous probiotic powder L.plantarum Dad-13(2×109 CFU/gram/sachet)for 90 d.The study was a randomized,double-blind,placebocontrolled study.The volunteers filled in a diary on a daily basis,which consisted of questions on study product intake(only during ingestion period),other food intake,number of bowel movements,fecal quality(consistency and color),any medications received,and any symptom of discomfort,such as diarrhea,constipation,vomiting,gassing,sensation of illness,etc.Fecal samples and the subjects’diaries were collected on the morning of day 10+1,which was marked as the end of the baseline period and the start of the ingestion period.During the ingestion period(from day 11 to day 101),several parameters to measure and analyze the results included body weight and height(once a month),the lipid profile,GM analysis using MiSeq,short-chain fatty acid(SCFA)analysis using gas chromatography,and the measurement of fecal pH using a pH meter.RESULTS The consumption of indigenous probiotic powder L.plantarum Dad-13 caused the average body weight and BMI of the probiotic group to decrease from 84.54±17.64 kg to 83.14±14.71 kg and 33.10±6.15 kg/m2 to 32.57±5.01 kg/m2,respectively.No significant reduction of body weight and BMI in the placebo group was observed.An analysis of the microbiota showed that the number of Bacteroidetes,specifically Prevotella,increased significantly,while that of Firmicutes significantly decreased.No significant change in lipid profile in both groups was found.Also,no significant change in SCFAs(e.g.,butyrate,propionate,acetic acid)and pH level was found after the consumption of the probiotic.CONCLUSION No significant differences in pH before and after ingestion were observed in both the probiotic and placebo groups as well as in the lipid profile of both cholesterol and triglyceride,high-density lipoprotein(HDL),low-density lipoprotein(LDL),and the LDL/HDL ratio.In addition,no significant changes in the concentration of SCFAs(e.g.,acetic acid,propionate,and butyrate)were found after consumption.Interestingly,a significant decrease in body weight and BMI(P<0.05)was determined in the treatment group.An analysis of GM shows that L.plantarum Dad-13 caused the Firmicutes population to decrease and the Bacteroidetes population(especially Prevotella)to increase. | Endang Sutriswati Rahayu Mariyatun Mariyatun Nancy Eka Putri Manurung Pratama Nur Hasan Phatthanaphong Therdtatha Riko Mishima Husnita Komalasari Nurul Ain Mahfuzah Fathyah Hanum Pamungkaningtyas Wahyu Krisna Yoga Dina Aulia Nurfiana Stefanie Yolanda Liwan Mohammad Juffrie Agung Endro Nugroho Tyas Utami | 2021 | World Journal of Gastroenterology2021，27，1： | 6 |
| 8 | Experimental study of Iranian heavy crude oil viscosity reduction by diluting with heptane, methanol, toluene, gas condensate and naphtha显示文摘Due to the high viscosity of heavy crude oils,production from these reservoirs is a demanding task.To tackle this problem,reducing oil viscosity is a promising approach.There are various methods to reduce viscosity of heavy oil:heating,diluting,emulsification,and core annular flow.In this study,dilution approach was employed,using industrial solvents and gas condensate.The viscosity of two Iranian heavy crude oils was measured by mixing with solvents at different temperatures.Dilution of both oil samples with toluene and heptane,resulted in viscosity reduction.However,their effect became less significant at higher concentrations of diluent.Because of forming hydrogen bonds,adding methanol to heavy crude oil resulted in higher viscosity.By adding condensate,viscosity of each sample reduced.Gas condensate had a greater impact on heavier oil;however,at higher temperatures its effect was reduced.Diluting with naphtha decreased heavy oil viscosity in the same way as n-heptane and toluene.Besides experimental investigation,different viscosity models were evaluated for prediction of heavy oil/solvent viscosity.It was recognized that Lederer'model is the best one. | Amir Hossein Saeedi Dehaghani Mohammad Hasan Badizad | 2016 | Petroleum2016，2，4： | 6 |
| 9 | Prognostic value of cortisol and thyroid function tests in poisoned patients admitted to toxicology ICU显示文摘BACKGROUND: Prognostic value of cortisol and thyroid function tests(TFTs) has previously been evaluated in medical ICUs. We aimed to evaluate prognostic efficacy of cortisol and TFTs in critically ill poisoned patients admitted to toxicology intensive care unit(ICU).METHODS: In a prospective study of consecutively enrolled subjects admitted to the toxicology ICU, lab analyses included TFTs(total T3 and T4 as well as TSH) and cortisol levels drawn between 8 am–10 am during period of the first 24 hours post-ingestion/exposure. Simplified Acute Physiology Score Ⅱ(SAPS Ⅱ) and Acute Physiology and Chronic Health Evaluation Ⅱ(APACHE Ⅱ) were recorded. All scores were compared to detect the best prognostic factor. Type of poisoning was also included.RESULTS: In 200 patients evaluated, 129 were male and mean age was 31 years. In general, SAPS Ⅱ, T4, and cortisol could prognosticate death. After regression analysis, only cortisol had such efficacy(P=0.04; OR=1.06; 95%CI=1.05–1.08; cut-off=42 μg/d L; sensitivity=70%; specificity=82%). Between aluminium phosphide(ALP)-and non ALP-poisoned patients, level of consciousness, mean arterial pressure, and cortisol level could prognosticate death in ALP poisoning(all Ps<0.001 in both uni and multivariate analyses). Median(interquartile range; IQR) GCS was 7(6, 10) and 15(8, 15) in non-ALP and ALP-poisoned patients(P<0.003). SAPS Ⅱ and APACHE Ⅱ could not prognosticate death at all.CONCLUSION: Cortisol best prognosticated outcomes for subjects admitted to the toxicology ICU. Its level is higher in ALP-poisoned patients probably due to the higher stress while they remain conscious till the final stages of toxicity and are aware of deterioration of their clinical condition or may be due to their significantly lower blood pressures. | Shahin Shadnia Nasim Zamani Hossein Hassanian-Moghaddam Hamed Shafaroodi Mina Padandar Mohammad Hasan Rezaeizadeh | 2018 | World Journal of Emergency Medicine2018，9，1： | 6 |
| 10 | Gut microbiota profile in healthy Indonesians显示文摘BACKGROUND Recently, gut microbiota has been associated with various diseases other than intestinal disease. Thus, there has been rapid growth in the study of gut microbiota. Considering the numerous factors influencing gut microbiota such as age, diet, etc., area-based research is required. Indonesia has numerous different tribes and each of these tribes have different lifestyles. Hence, it is expected that each tribe has a specific gut microbiota. A deeper insight into the composition of gut microbiota can be used to determine the condition of gut microbiota in Indonesians and to consider which treatment may be suitable and effective to improve health status.AIM To investigate the gut microbiota of Indonesian subjects represented by Javanese and Balinese tribes by analyzing fecal samples.METHODS Fecal samples were collected from a total of 80 individuals with 20 in each of the young groups ranging from 25-45 years and the elderly group aged 70 years or more from two different regions, Yogyakarta and Bali. Fecal sample collection was performed at the end of the assessment period(day 14 ± 1 d) during which time the subjects were not allowed to consume probiotic or antibiotic products.The quantification of various Clostridium subgroups, Lactobacillus subgroups,Enterococcus, Streptococcus, Staphylococcus, Bacteroides fragilis group and Prevotella,Bifidobacterium and Atopobium cluster, Enterobacteriaceae and Pseudomonas was performed using the Yakult intestinal flora-scan(YIF-SCAN).RESULTS The bacterial population in younger subjects' feces was higher than that in the elderly population, with a total of approximately 10.0 – 10.6 log10 bacterial cells/g feces. The most abundant bacteria in all groups were Clostridium, followed by Prevotella, Atopobium, Bifidobacterium and Bacteroides. In the elderly, an increase in Enterobacteriaceae, Coliform and Escherichia coli was found. In terms of bacterial counts in Yogyakarta, total bacteria, Clostridium coccoides(C. coccoides) group,Bifidobacterium, Prevotella, Lactobacillus plantarum subgroup, and Streptococcus were significantly higher(P < 0.05) in younger than elderly subjects, while the Lactobacillus gasseri subgroup, Lactobacillus casei subgroup, and Lactobacillus reuteri subgroup counts were significantly lower(P < 0.05) in younger subjects. In Balinese subjects, total bacteria, C. coccoides group, Clostridium leptum subgroup,Bacteroides fragilis group, and Prevotella were significantly higher(P < 0.05) in younger compared to elderly individuals, while the Lactobacillus ruminis subgroup, and Enterobacteriaceae were significantly lower(P < 0.05) in younger subjects. The results also revealed that, besides the C. coccoides group and Clostridium leptum group being the most abundant gut microbiota in both Yogyakarta and Balinese people, the latter was indicated by a higher Clostridium perfringens count, which was almost 10 times that of Yogyakarta subjects. This may be a response to different lifestyles in the different tribes; however, this phenomenon requires further extensive study.CONCLUSION Bacterial populations were higher in younger than in elderly subjects. Most abundant bacterial groups were Clostridium, Prevotella, Atopobium, Bifidobacterium,and Bacteroides. The level of Clostridium perfringens in Yogyakarta subjects was lower than that in Balinese subjects. | Endang Sutriswati Rahayu Tyas Utami Mariyatun Mariyatun Pratama Nur Hasan Rafli Zulfa Kamil Ryan Haryo Setyawan Fathyah Hanum Pamungkaningtyas IskANDar Azmy Harahap Devin Varian Wiryohanjoyo Putrika Citta Pramesi Muhammad Nur Cahyanto I Nengah Sujaya Mohammad Juffrie | 2019 | World Journal of Gastroenterology2019，25，12： | 6 |
| 11 | CdS/Cu纳米光催化剂降解废水中的HMX和RDX试验研究(英文)显示文摘The wastewater with HMX and RDX was treated by photodegradation process in the presence of cadmium sulfide doped with copper as photocatalyst under UV and Vis irradiations.The influence on the degration of Cu% as dopant in CdS/Cu nanoparticles,pH of solution,dosage of photocatalyst and concentration of explosives were studied.The XRD patterns and UV-Vis spectra were used to characterize the nanoparticle.Results show that the degradation efficiency for HMX and RDX wastewater reaches 85%-88% in the presence of Cd0.95Cu0.05S under 180 min UV irradiation.The dosage of 160.0 mg·L-1 of photocatalyst and the pH of 7 are the optimum.A gradual decrease in degradation at the first two cycles is seen. | Hamid Reza Pouretedal Mohammad Hossien Keshavarz Mohammad Hasan Yosefi Arash Shokrollahi Abbas Zali | 2008 | 含能材料2008，16，6： | 5 |
| 12 | Impact of climate change on hydropower generation in Rio Jubones Basin, Ecuador显示文摘This study attempted to use the soil and water assessment tool(SWAT), integrated with geographic information systems(GIS), for assessment of climate change impacts on hydropower generation. This methodology of climate change impact modeling was developed and demonstrated through application to a hydropower plant in the Rio Jubones Basin in Ecuador. ArcSWAT 2012 was used to develop a model for simulating the river flow. The model parameters were calibrated and validated on a monthly scale with respect to the hydro-meteorological inputs observed from 1985 to 1991 and from 1992 to 1998, respectively. Statistical analyses produced Nash-Sutcliffe efficiencies(NSEs) of 0.66 and 0.61 for model calibration and validation, respectively, which were considered acceptable. Numerical simulation with the model indicated that climate change could alter the seasonal flow regime of the basin, and the hydropower potential could change due to the changing climate in the future.Scenario analysis indicates that, though the hydropower generation will increase in the wet season, the plant will face a significant power shortage during the dry season, up to 13.14% from the reference scenario, as a consequence of a 17% reduction of streamflow under an assumption of a 2.9℃ increase in temperature and a 15% decrease in rainfall. Overall, this study showed that hydrological processes are realistically modeled with SWAT and the model can be a useful tool for predicting the impact of climate change. | Mohammad Mehedi Hasan Guido Wyseure | 2018 | Water Science and Engineering2018，11，2： | 5 |
| 13 | Numerical simulation of high voltage electric pulse comminution of phosphate ore显示文摘Numerical simulation of the electrical field distribution helps in-depth understanding of the mechanisms behind the responses and the benefits of the high voltage pulse comminution. The COMSOL Multiphysics package was used to numerically simulate the effect of ore compositions in this study. Regarding phosphate ore particles shape and composition, the effects of mineral composition, particle size, particle shape and electrodes distance were investigated on the electrical field intensity and distribution. The results show that the induced electrical field is significantly dependent on the electrical properties of minerals,the feed particle size and the location of conductive minerals in ores. The angle of material contact surface with the discharge electrode is also an important factor in the intensity of electrical field. Moreover,it is found that the specific liberation effect at the disintegration of phosphate ore by electrical pulses is due to the locality of the electrical field at the interface of mineral components of the phosphate ore aggregates with different permittivities. However, the intensity of the electrical field increases with sharpening the contact angle. Besides, the electrical discharge in the samples is converted to the electrohydraulic discharge across the surrounding water by changing the distance between the discharge electrode and sample surface. | Razavian Seyed Mohammad Rezai Bahram Irannajad Mehdi Ravanji Mohammad Hasan | 2015 | International Journal of Mining Science and Technology2015，25，3： | 4 |
| 14 | Tea beverage in chemoprevention and chemotherapy of prostate cancer显示文摘前列腺癌症(PCa ) 是最经常诊断的恶意和在有在存在的许多 westerncountries.The 的类似的趋势的美国男性的癌症相关的死亡的第二个领先的原因治疗途径和外科的干预一直不能有效地应付这畏惧的疾病。为这些原因,为它的预防和治疗为疾病过程的更好的理解并且为新奇途径的发展加强我们的努力是必要的。从在 vivo 并且在 vitrodata 和流行病学的研究基于可观的证据,在饮料茶获得了为减少几癌症的风险的可观的注意的最近的年里。许多茶的癌症预防措施效果,特别绿的茶看起来被在那里在场的多酚调停。地理证据建议 PCa 的发生和出现在消费茶 regularly.Thisevidence 的人口是更低的建议茶多酚能被外推对 PCa.PCa 优化他们的 chemopreventiveproperties 因为它典型地超过 50 岁并且因此在人被诊断,为 chemoprevention 代表优秀候选人疾病,甚至在通过药理学或营养的干预完成的肿瘤的开发的谦虚延期能在临床上可检测的疾病的发生导致实质的减小。在这评论,我们处理茶的可能的使用的问题,特别绿的茶,为象治疗 ofPCa 一样的预防。 | Imtiaz A SIDDIQUI Mohammad SALEEM Vaqar M ADHAMI Mohammad ASIM Hasan MUKHTAR | 2007 | Acta Pharmacologica Sinica2007，28，9： | 4 |
| 15 | Nutrient dynamics associated with leaf litter decomposition of three agroforestry tree species (Azadirachta indica, Dalbergia sissoo, and Melia azedarach) of Bangladesh显示文摘Azadirachta indica A. Juss, Dalbergia sissoo Roxb., and Melia azedarach L. are little studied species in nutrient return capabili- ties from leaf litter decomposition to maintenance of the soil fertility despite their importance in agroforestry practices of Bangladesh. A leaf litter decomposition experiment was conducted using a litterbag tech- nique to assess the nutrient return efficiency of these species. The de- composition rate of leaf litter was highest for M. azedarach and lowest for D. sissoo. Rainfall and temperature of study sites showed a signifi- cant (p<0.05) positive relationship with the rate of leaf litter decomposi- tion. The highest decay constant was observed for M. azedarach (6.67). Nitrogen and Phosphorus concentration in leaf litter showed a decreased trend sharply at the end of the first month, whereas rapid decrease of Potassium concentration was reported within 10 days. Conversely, higher concentration of nutrient was observed at the later stages of decomposi- tion. All three species showed a similar pattern of nutrient release (K > N > P) during the decomposition process of leaf litter. Among the studied species, D. sissoo was best in terms of N and P return and A. indica was best in terms of K return. | Mahmood Hossain Mohammad Raqibul Hasan Siddique Md. Saidur Rahman Md. Zaber Hossain Md. Mahedi Hasan | 2011 | Journal of Forestry Research2011，22，4： | 4 |
| 16 | 从熔炉渣中氯盐浸出铅的参数优化和动力学(英文)显示文摘研究采用氯盐浸出法从传统熔铅炉渣中回收铅的可行性和动力学。考察工艺参数如浸出时间、NaCl浓度、FeCl_3浓度、液/固比、搅拌速度、浸出温度、颗粒尺寸对铅回收率的影响。基于中心复合设计模型,利用响应面法对上述参数进行优化,得到优化工艺条件如下:浸出时间60 min、浸出温度80℃、搅拌速度800 r/min、NaCl浓度200 g/L、FeCl_3浓度80 g/L、液固比16、颗粒尺寸小于106μm。在此优化条件下96%Pb被回收。基于方差分析法,确定浸出温度、液固比和NaCl浓度为影响浸取过程的最有效参数。动力学研究结果表明,方铅石的氯盐浸出过程为一级反应过程。反应机理为固态反应产物的扩散和化学反应。采用Arrhenius模型计算得到从方解石中氯盐浸出铅的激活能为27.9 kJ/mol。 | Mohammad Hasan GOLPAYEGANI Ali Akbar ABDOLLAHZADEH | 2017 | Transactions of Nonferrous Metals Society of China2017，27，12： | 4 |
| 17 | Modelling and Remote Control of an Excavator显示文摘This paper presents the results of an on-going project and investigates modelling and remote control issues of an industry excavator. The details of modelling, communication, and control of a remotely controllable excavator are studied. The paper mainly focuses on trajectory tracking control of the excavator base and robust control of the excavator arm. These will provide the fundamental base for our next research step. In addition, extensive simulation results for trajectory tracking of the excavator base and robust control of the excavator arm are given. Finally, conclusions and further work have been identified. | Yang Liu Mohammad Shahidul Hasan Hong-Nian Yu | 2010 | International Journal of Automation and computing2010，7，3： | 3 |
| 18 | Effect of alumina content and heat treatment on microstructure and upconversion emission of Er^(3+)ions in oxyfluoride glass-ceramics显示文摘The effect of alumina content and heat treatment temperature and time, on microstructure and Er3+ (0.5 mol.%) emission of oxy-fluoride glass-ceramics were investigated in this research. Two values of 1.8 (SA1.8Er0.5) and 2.18 (SA2.18Er0.5) were selected in this re-search for SiO2/Al2O3 ratio. According to DTA results, precursor glasses were heat treated at 630, 660 and 690 °C for 4 h and some glasses were also heat treated at 630 °C for 48 and 72 h. The results indicated that alumina content had significant effect on phase separation and vis-cosity of the glasses. Therefore the size, size distribution, and volume concentration of nano CaF2 crystals which precipitated during the heat treatment depended on alumina content of the glass. Due to the much smaller size of the precipitated CaF2 crystals in the glasses of low alumina content, these samples maintained excellent transparency and had narrower crystal size distribution than the high alumina glasses. The crystal size was increased markedly with the temperature increasing from 630 to 690 °C. On the other hand a slight increase was observed in the crystal size by raising the heat treatment time in both glasses. Results indicated that in low alumina content glass (SA2.18Er0.5) the size of CaF2 nanocrystals was controlled in one order of magnitude. The increase of heat treatment time and temperature led to the incorporation of Er3+ ions into CaF2 crystalline phase, increasing significantly the upconversion intensity. After heat treatment at 690 ℃ for 4 h, atomic force microscope (AFM) re-vealed the development of small crystals with an average size of 80 and 30 nm in SA1.8Er0.5 and SA2.18Er0.5 samples, respectively. | Mohammad Hasan Imanieh Bijan Eftekhari Yekta Vahak Marghussian Inocencio Rafael Martin Benenzuela Alberto Hernandez Creus Saeed Shakhesi Esmaeil Eslami | 2012 | Journal of Rare Earths2012，30，12： | 3 |
| 19 | Digital Soil Mapping Using Artificial Neural Networks and Terrain-Related Attributes显示文摘Detailed soil surveys involve costly and time-consuming work and require expert knowledge. Since soil surveys provide information to meet a wide range of needs, new methods are necessary to map soils quickly and accurately. In this study, multilayer perceptron artificial neural networks(ANNs) were developed to map soil units using digital elevation model(DEM) attributes. Several optimal ANNs were produced based on a number of input data and hidden units. The approach used test and validation areas to calculate the accuracy of interpolated and extrapolated data. The results showed that the system and level of soil classification employed had a direct effect on the accuracy of the results. At the lowest level, smaller errors were observed with the World Reference Base(WRB)classification criteria than the Soil Taxonomy(ST) system, but more soil classes could be predicted when using ST(7 soils in the case of ST vs. 5 with WRB). Training errors were below 11% for all the ANN models applied, while the test error(interpolation error) and validation error(extrapolation error) were as high as 50% and 70%, respectively. As expected, soil prediction using a higher level of classification presented a better overall level of accuracy. To obtain better predictions, in addition to DEM attributes, data related to landforms and/or lithology as soil-forming factors, should be used as ANN input data. | Mohsen BAGHERI BODAGHABADI José Antonio MARTINEZ-CASASNOVAS Mohammad Hasan SALEHI Jahangard MOHAMMADI Isa ESFANDIARPOOR BORUJENI Norair TOOMANIAN Amir GANDOMKAR | 2015 | Pedosphere2015，25，4： | 3 |
| 20 | 生物型牛津单髁膝关节假体研究进展显示文摘生物型牛津单髁膝关节假体在国内的临床应用尚未完全开展。由于在避免骨水泥型假体固定的技术缺陷和骨水泥毒性导致的并发症、减少术后翻修、保存患者骨量、延长假体使用时间、恢复膝关节功能及维持假体长期稳定性等方面存在优势,生物型牛津单髁膝关节假体在临床的广泛应用非常值得期待。本文从生物型牛津单髁膝关节假体与骨水泥型牛津单髁膝关节假体及生物型全膝关节假体的差别及生物型牛津单髁膝关节假体的优点和临床应用中面临的问题等方面对生物型牛津单髁膝关节假体的研究进展进行了综述。 | 李鹏飞 David Murray 曾意荣 涂意辉 樊粤光 庞智晖 James Kenne Hasan Mohammad Stephen Mellon hristopher Dodd | 2017 | 中医正骨2017，29，12： | 3 |
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