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Hydrogeophysical and Structural Investigations Using VES: A Case Study of Dosso Region in the Southwestern Part of the meso-Cenozoic Iullemmeden Basin (Southwestern Niger)

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Open Journal of Geology 2024年第1期14卷 50-80页

作者： Abdou ali Ibrahim Huguette C. Emvoutou Alain Zanga Konaté moussa Serigne Faye Department of Life and Earth Sciences Ecole Normale Supérieure Université Abdou Moumouni Niamey Niger Department of Earth Sciences Faculty of Sciences University of Douala Douala Cameroon Department of Geology Faculty of Sciences and Techniques University Cheikh Anta Diop of Dakar Dakar Senegal Department of Geology Faculty of Sciences and Techniques Université Abdou Moumouni Niamey Niger

A regional study connecting geolelectrical surveys with geology and hydrogeology was carried out in the western part of the Iullemmeden basin, precisely in the Dosso region in Niger. One hundred and four (104) vertical electrical sounds have been realized, among them nineteen representative were thus be used as parametric surveys. The local resistivity values of the geological formations of Quaternary range from 100 Ω⋅m to 1000 Ω⋅m (sands and lateritic sandstones). The Oligo-miocene formation of the Continental terminal (Ct) shows resistivity values ranging from 1 to 5 Ω⋅m (brackish groundwaters) to 1500 Ω⋅m (clay sandstones) while the Upper Cretaceous formation of the Continental “hamadien” (Ch) indicates values ranging from 20 Ω⋅m (sandy clay) to 5000 Ω⋅m (clayey sandstones). The geological formations of Paleocene have values from 2 Ω⋅m (marls) to 60 Ω⋅m (calcareous marl), while the Precambrian basement exhibits values of granite around 300 Ω⋅m to 60,000 Ω⋅m. The update of the structural settings reveals many faults in the study area which explain both the shape of the basin and the geometry of the aquifers. Tectonics is also consistent with the hydraulic characteristics of aquifers. In addition, brackish groundwaters were identified as perched aquifer groundwaters in different depths in Dosso region. They probably come from the marine brines during the regression of the Paleocene Sea.

关键词： Vertical Electrical Soundings Continental Terminal Continental “Hamadien” Brackish Groundwaters Iullemmeden Basin Dosso Region

基于遗传——蚁群算法的农田微地形特征土方调配路径研究

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中国农机化学报 2024年第8期45卷 270-275页

作者：金鑫李瀚远杜蒙蒙姬江涛 ali Roshanianfard 河南科技大学农业装备工程学院河南洛阳471003 莫哈格达阿德比利大学农业与自然资源系阿尔达比勒566199

近年来极端天气与自然灾害频发,导致农田损毁,造成农田内部出现微地形特征(凸起特征及洼地特征),影响耕作。针对上述问题,基于高精度农田数字地形模型,通过遗传—蚁群算法提出一种规划农田微地形特征土方调配路径的方法。首先,基于航拍... 详细信息

近年来极端天气与自然灾害频发,导致农田损毁,造成农田内部出现微地形特征(凸起特征及洼地特征),影响耕作。针对上述问题,基于高精度农田数字地形模型,通过遗传—蚁群算法提出一种规划农田微地形特征土方调配路径的方法。首先,基于航拍图像获取高精度农田数字地形模型,根据地形因子综合隶属度提取16个凸起特征和9个洼地特征,并分别计算挖填方量为0.885 m^(3)和0.884 m^(3)。其次,以土方量调配成本为决策目标,建立挖、填方区域为路径搜索节点,利用蚁群算法获得初始可行解,通过遗传算法中的适应度函数对解进行初步优化,最后,根据交叉操作和变异操作对解进行二次优化,获得最优土方调配路径。结果表明,该方法经232次迭代获取全局最优解,相较于传统蚁群算法调配成本下降2.1%。为精准平整农田微地形特征作业提供方法支持。

关键词：农田微地形特征数字地形模型土方调配蚁群算法遗传算法

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添加Si对mg-6Al-1Zn合金显微组织、力学性能、生物腐蚀和细胞毒性的影响（英文）

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Transactions of Nonferrous metals Society of China 2018年第9期28卷 1755-1762页

作者： m.AmIRNEJAD m.rajabi A.mOTAVALLI Department of materials Science and Engineering Faculty of Mechanical EngineeringBabol Noshirvani University of Technology

用机械合金化和热压法制备可降解的mg-6Al-4Zn金属植入体。通过X射线衍射分析、透射电镜、压缩试验、浸泡试验、电化学测试和mTT比色法研究添加1%Si(质量分数)对mg-6Al-1Zn合金显微组织、力学性能、生物腐蚀行为和细胞毒性的影响。结果... 详细信息

用机械合金化和热压法制备可降解的mg-6Al-4Zn金属植入体。通过X射线衍射分析、透射电镜、压缩试验、浸泡试验、电化学测试和mTT比色法研究添加1%Si(质量分数)对mg-6Al-1Zn合金显微组织、力学性能、生物腐蚀行为和细胞毒性的影响。结果显示,添加1%Si后,mg-6Al-1Zn中形成了细小的多边形mg2Si相,材料的抗压强度、伸长率和耐腐蚀性能提高,且骨肉瘤(Saos-2)细胞的细胞活性提高。根据mTT测试结果,释放出的镁离子没有细胞毒性。因此,添加1%Si提高了mg-6Al-4Zn作为可降解植入体的综合性能。

关键词：镁基合金机械合金化力学性能腐蚀速率细胞活性

Utilizing auxin dwarf genes to optimize seed yield and lodging resistance in rapeseed

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The Crop Journal 2024年第4期12卷 1208-1221页

作者： Hongxiang Lou Yan Peng Chunyun Wang Zongkai Wang Bowen Zhao ali mahmoud El-Badri maria Batool Bo Wang Jing Wang Zhenghua Xu Jie Zhao Jie Kuai Guangsheng Zhou mOA Key Laboratory of Crop Ecophysiology and Farming System in the middle Reaches of the Yangtze River Hubei Hongshan LaboratoryCollege of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070HubeiChina Field Crops Research Institute Agricultural Research CenterGiza 12619Giza GovernorateEgypt

Direct-seeding rapeseed production at high plant density raises the risk of *** investigated the use of dwarf genes to improve rapeseed plant architecture to balance yield and *** genotypes with different plant architectures(dwarf sca^(HS5),semi-dwarf+/sca^(HS5),and tall ^(HS5))were evaluated under varying nitrogen rates(N1,N2,and N3:120,240,and 360 kg N ha^(-1))and plant densities(D1,D2,and D3:15,45,and 75 plants m^(-2))from 2019 to *** results showed that increasing N rate positively influenced yield while decreasing lodging resistance in all *** plant density(D2-D3)enhanced lodging resistance and yield in sca^(HS5) and+/sca^(HS5),but reduced yield in ^(HS5).Compared to the two parents,+/sca^(HS5) exhibited moderate expressions of IAA3,GH3.15,and SAUR30 in stems under N2D3,resulting in reduced plant height and increased ***,+/sca^(HS5) had a thicker silique layer than ^(HS5) by 14.7%,and it had a significant correlation between branch height/angle and *** N rate led to increased lignin and pectin contents,while cellulose content *** plant density resulted in greater stem cellulose content and CSLA3/7 expression in sca^(HS5) and+/sca^(HS5),but decreased in ^(HS5).Compared to ^(HS5),+/sca^(HS5) exhibited higher expressions of ARAD1 and GAUT4,along with a 51.1%increase in pectin content,leading to improved lodging resistance under ***,+/sca^(HS5) showed a 46.4%higher yield and 38.9%lodging resistance than ^(HS5) under N2D3,while sca^(HS5) demonstrated strong lodging resistance but lower yield ***,this study underscores the potential of utilizing auxin dwarf genes to optimize the trade-off between yield and lodging resistance in rapeseed and the possibility of maximizing yield potential by optimizing the plant architecture of+/sca^(HS5) through nitrogen reduction and dense planting.

关键词： Rapeseed Plant density Nitrogen Lodging Auxin

Predicting short-term thromboembolic risk following Roux-en-Y gastric bypass using supervised machine learning

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World Journal of Gastrointestinal Surgery 2024年第4期16卷 1097-1108页

作者： Hassam ali Faisal Inayat Vishali moond Ahtshamullah Chaudhry Arslan Afzal Zauraiz Anjum Hamza Tahir muhammad Sajeel Anwar Dushyant Singh Dahiya muhammad Sohaib Afzal Gul Nawaz Amir H Sohail muhammad Aziz Department of Gastroenterology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal medicine Allama Iqbal Medical CollegeLahorePunjab 54550Pakistan Department of Internal medicine Saint Peter's University Hospital and Robert Wood Johnson Medical SchoolNew BrunswickNJ 08901United States Department of Internal medicine St.Dominic's HospitalJacksonMS 39216United States Department of Internal medicine Rochester General HospitalRochesterNY 14621United States Department of Internal medicine Jefferson Einstein HospitalPhiladelphiaPA 19141United States Department of Internal medicine UHS Wilson Medical CenterJohnsonNY 13790United States Division of Gastroenterology Hepatology and MotilityThe University of Kansas School of MedicineKansasKS 66160United States Department of Internal medicine Louisiana State University HealthShreveportLA 71103United States Department of Surgery University of New Mexico School of MedicineAlbuquerqueNM 87106United States Department of Gastroenterology and Hepatology The University of ToledoToledoOH 43606United States

BACKGROUND Roux-en-Y gastric bypass(RYGB)is a widely recognized bariatric procedure that is particularly beneficial for patients with class III *** aids in significant weight loss and improves obesity-related medical *** its effectiveness,postoperative care still has *** evidence shows that venous thromboembolism(VTE)is a leading cause of 30-d morbidity and mortality after ***,a clear unmet need exists for a tailored risk assessment tool for VTE in RYGB *** To develop and internally validate a scoring system determining the individualized risk of 30-d VTE in patients undergoing *** Using the 2016–2021 metabolic and Bariatric Surgery Accreditation Quality Improvement Program,data from 6526 patients(body mass index≥40 kg/m^(2))who underwent RYGB were analyzed.A backward elimination multivariate analysis identified predictors of VTE characterized by pulmonary embolism and/or deep venous thrombosis within 30 d of *** resultant risk scores were derived from the coefficients of statistically significant *** performance of the model was evaluated using receiver operating curves through 5-fold *** Of the 26 initial variables,six predictors were *** included a history of chronic obstructive pulmonary disease with a regression coefficient(Coef)of 2.54(Pmbosis(Coef 1.61,Pmoglobin A1c>7%(Coef 1.19,Pm that was generated for the model predicting 30-d VTE risk *** risk model's area under the curve(AUC)was 0.79[95%confidence interval(CI):0.63-0.81],showing good discriminatory power,achieving a sensitivity of 0.60 and a specificity of *** training,the same model performed satisfactorily

关键词： Roux-en-Y gastric bypass Venous thromboembolism machine learning Bariatric surgery Predictive modeling

给水厂砂滤池反冲洗水直接回用对出厂水水质影响及其风险评价

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环境科学学报 2024年第5期44卷 128-137页

作者：张锋蒋才芳刘敏梁虹许谦蒋菱董慧峪 ali mashayekh-Salehi 谢婷刘绍刚广西民族大学化学化工学院林产化学与工程国家民委重点实验室广西林产化学与工程重点实验室广西林产化学与工程协同创新中心南宁530008 中国科学院生态环境研究中心中国科学院饮用水科学与技术重点实验室北京100085 广西绿城水务股份有限公司南宁530031

给水厂的生产废水的回用安全性,备受水务行业关注.本研究以邕江原水和砂滤池反冲洗废水为对象,对某给水厂沿程各单元出水的一般性和毒理学水质指标进行长周期监测,例如浊度、UV_(254)、氨氮(NH_(4)^(+)-N)、高锰酸盐指数(COD_(mn))、农... 详细信息

给水厂的生产废水的回用安全性,备受水务行业关注.本研究以邕江原水和砂滤池反冲洗废水为对象,对某给水厂沿程各单元出水的一般性和毒理学水质指标进行长周期监测,例如浊度、UV_(254)、氨氮(NH_(4)^(+)-N)、高锰酸盐指数(COD_(mn))、农药、抗生素等微污染物,探讨砂滤池反冲洗水直接回用对给水厂水质的影响.结果显示,给水厂砂滤池反冲洗水中浊度、氨氮、DOC和COD_(mn)普遍高于原水,且冬季较高其他季节;UV_(254)、SO_(4)^(2-)、NO_(3)^(-)、Pb、Cu等指标与出厂水相差不大,反冲洗水直接回用对出厂水水质影响不大.各处理单元出水中检出33种农药和4种抗生素,其含量远低于《生活饮用水卫生标准》(GB 5749-2022)限值,但唑醚菌胺、磺胺二甲异嘧啶、诺氟沙星和环丙沙星稍高于原水.荧光光谱分析表明,各处理单元出水的溶解性有机质(DOm)的主要组分为类腐殖质物质和类蛋白质物质,水处理工艺对芳香蛋白类及溶解性微生物代谢产物有一定去除作用.砂滤池反冲洗水中富集较多铝(Al),浓度达到0.18 mg·L^(-1),回用时需加以关注.健康风险评价模型结果显示出厂水中残余铝的个人健康年风险最大值为5.34×10^(-7),低于最大可接受年风险水平10^(-6).

关键词：反冲洗水废水回用水质分析长周期监测健康风险评估

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Electromagnetic Coupling of Negative Parity Nucleon Resonances N(1535) Based on Nonrelativistic Constituent Quark model

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Communications in Theoretical Physics 2018年第1期69卷 43-49页

作者： Sara Parsaei ali Akbar rajabi Faculty of Physics Shahrood University of Technology P.O. Box ***-316 Shahrood Iran Shams Institute of Higher Education Golestan Province Gonbad Iran

The electromagnetic transition between the nucleon and excited baryons has long been recognized as an important source of information for understanding strong interactions in the domain of quark confinement. We study the electromagnetic properties of the excitation of the negative parity the N~*(1535) resonances in the nonrelativistic constituent quark model at large momentum transfers and have performed a calculation the longitudinal and transverse helicity amplitudes. Since the helicity amplitudes depend strongly on the quark wave function in this paper, we consider the baryon as a simple, non-relativistically three-body quark model and also consider a hypercentral potential scheme for the internal baryon structure, which makes three-body forces among three quarks. Since the hyper central potential depends only on the hyper radius, therefore, the Cornell potential which is a combination of the Coulombic-like term plus a linear confining term is considered as the potential for interaction between quarks. In our work, in solving the Schrodinger equation with the Cornell potential, the Nikiforov–Uvarov method employed, and the analytic eigen-energies and eigen-functions obtained. By using the obtained eigen-functions, the transition amplitudes calculated. We show that our results in the range Q^2> 2GeV^2 lead to an overall better agreement with the experimental data in comparison with the other three non-relativistic quark models.

关键词：夸克模型电磁 Schrodinger 回声核子等值否定成分

机械合金化制备纳米晶镁基合金的热稳定性（英文）

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Transactions of Nonferrous metals Society of China 2016年第2期26卷 398-405页

作者： m.rajabi R.m.SEDIGHI S.m.RABIEE Department of material Science and Engineering Faculty of Mechanical EngineeringBabol Noshirvani University of Technology

研究机械合金化制备的纳米晶mg-6Al-1Zn和mg-6Al-1Zn-1Si合金的热稳定性和晶粒生长动力学。研究从元素粉末开始,使用了各种分析手段,包括差示扫描量热法(DSC)、X射线衍射(XRD)、扫描电镜、透射电镜和能谱分析。研究等温退火过程中的晶... 详细信息

研究机械合金化制备的纳米晶mg-6Al-1Zn和mg-6Al-1Zn-1Si合金的热稳定性和晶粒生长动力学。研究从元素粉末开始,使用了各种分析手段,包括差示扫描量热法(DSC)、X射线衍射(XRD)、扫描电镜、透射电镜和能谱分析。研究等温退火过程中的晶粒生长动力学。XRD结果表明:尽管两种材料体系的晶粒尺寸随退火温度的升高而增加,但在350°C退火1 h后,含Si体系具有更小的晶粒尺寸(60 nm),而mg-6Al-1Zn体系的晶粒尺寸为72 nm。mg-6Al-1Zn-1Si体系在等温退火过程中形成的第二相金属间化合物mg2Si不仅影响活化能,而且影响动力学方程的指数。含Si体系的硬度更高是由于金属间相mg_2Si的形成。

关键词：镁基合金热稳定性晶粒生长机械合金化

Pseudoscalar Cornell potential for a spin-1/2 particle under spin and pseudospin symmetries in 1+1 dimension

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Chinese Physics B 2013年第9期22卷 214-216页

作者： m.Hamzavi A.A.rajabi Physics Department Shahrood University of Technology

The Cornell potential that consists of Coulomb and linear potentials has received a great deal of attention in particle physics. In this paper, we present the exact solutions of the Dirac equation with the pseudoscalar Cornell potential under spin and pseudospin symmetry limits. The energy eigenvalues and corresponding eigenfunctions are given in closed form.

关键词： Dirac equation pseudoscalar Cornell potential spin and pseudospin symmetry