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The function of doping nitrogen on removing fluoride with decomposing La-MOF-NH_2:Density functional theory calculation and experiments

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Journal of Environmental Sciences 2024年第1期135卷 118-129页

作者： Hongguo Zhang KuilinWan Jia Yan Qian Li Yufang Guo Lei Huang Samuel raj Babu Arulmani Jian Luo School of Environmental Science and Engineering Guangzhou UniversityGuangzhou 510006China Guangzhou University-Linkoping University Research center on Urban Sustainable Development Guangzhou UniversityGuangzhou 510006China School of civil and Environmental Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Fluoride is an important pollutant in wastewater,and adsorption is an effective way to remove *** nitrogen plays an important role in adsorbent materials,computational models were developed to understand the changes in work function resulting from nitrogen ***-N-c-800℃,was prepared by pyrolyzing La-MOF-NH_(2)to verify the influence on the performance of removing fluoride by *** and electrochemical performance tests were performed to characterize La-N-c-800℃.Adsorption kinetics,adsorption thermodynamics,initial concentrations,pH,and ions competition were investigated using La-N-c-800℃for fluoride *** addition,density functional theory was applied to evaluate the function of *** nitrogen atoms were added,the density of states,partial density of states,populations,and different orbits of charge were calculated to discover deep *** strengthened the carbon structure and La_(2)O_(3)structure to remove *** addition,nitrogen can also act as an adsorption site in the carbon *** results provide design ideas for improving the performance of adsorbent materials by doping elements.

关键词： capacitive deionization Fluoride La-MOFs Doping nitrogen

Isolation and microbial transformation of tea sapogenin from seed pomace of camellia oleifera with anti-inflammatory effects

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chinese Journal of Natural Medicines 2024年第3期22卷 280-288页

作者： SHEN Pingping JIANG Xuewa ZHANG Jingling WANG Jiayi raj Richa LI Guolong GE Haixia WANG Weiwei YU Boyang ZHANG Jian State Key Laboratory of Natural Medicines China Pharmaceutical UniversityNanjing 210009China co-construction collaborative Innovation center for chinese Medicine Resources Industrialization by Shaanxi&Education Ministry Shaanxi Province Key Laboratory of New Drugs and Chinese Medicine Foundation ResearchShaanxi University of Chinese MedicineXianyang 712046China School of Life Sciences Huzhou UniversityHuzhou 313000China Nanjing Hospital of chinese Medicine Affiliated to Nanjing University of chinese Medicine Nanjing 210046China Jiangsu Key Laboratory of TcM Evaluation and Translational Research China Pharmaceutical UniversityNanjing 211198China

In the current study,tea saponin,identified as the primary bioactive constituent in seed pomace of camellia oleifera Abel.,was meticulously extracted and hydrolyzed to yield five known sapogenins:16-O-tiglogycamelliagnin B(a),camelliagnin A(b),16-O-angeloybarringtogenol c(c),theasapogenol E(d),theasapogenol F(e).Subsequent biotransformation of compound a facilitated the isolation of six novel metabolites(a1−a6).The anti-inflammatory potential of these compounds was assessed using pathogenassociated molecular patterns(PAMPs)and damage-associated molecular patterns molecules(DAMPs)-mediated cellular inflammation ***,compounds b and a2 demonstrated significant inhibitory effects on both lipopolysaccharide(LPS)and high-mobility group box 1(HMGB1)-induced inflammation,surpassing the efficacy of the standard anti-inflammatory agent,***,compounds d,a3,and a6 selectivity targeted endogenous HMGB1-induced inflammation,showcasing a pronounced *** results underscore the therapeutic promise of *** seed pomace-derived compounds as potent agents for the management of inflammatory diseases triggered by infections and tissue damage.

关键词： camellia oleifera Seed pomace Tea sapogenin Microbial transformation Damage-associated molecular patterns and Pathogen-associated molecular patterns Anti-inflammatory activity

Mineralogy and whole-rock geochemistry of the Oligocene Barail Group of rocks of Belt of Schuppen,Northeast India:Implications for tectono-provenance and paleo-weathering

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Acta Geochimica 2024年第5期43卷 904-932页

作者： Manash Pratim Gogoi Yunpeng Dong Pradip Borgohain Devojit Bezbaruah Arvind Pandey Yadav Krishna Gogoi Garima Konwar Gautam raj Bawri Bubul Bharali Department of Petroleum Technology Dibrugarh UniversityAssam 786004India Department of Geology Northwest UniversityXi’an 710069China Department of Applied Geology Dibrugarh UniversityAssam 786004India Department of Statistics Central University of RajasthanAjmer 305817India Department of Geology Mizoram UniversityAizawlMizoram 796004India Department of Geology Pachhunga University CollegeAizawlMizoram 796001India

The petrographic and geochemical attributes of the Oligocene Barail Group of rocks are used to decipher the likely source area(s)or tectonic domains,as this sequence of rocks was deposited in a foreland basin governed by orogenic domain,namely the North-east Arunachal *** river system that gave rise to the Brahmaputra River(Yarlung-Tsangpo),which flowed through several tectonic domains of the Himalayan ranges,primarily from Bomichayu,Gangadese Granitoid,Higher Himalayan Leucogranites,and Namche Barwa into the proto Bengal Basin now a part of Assam Arakan Basin and Naga Schuppen Belt,was the main source of the sandstone formation of the Barail *** purpose of sandstone petrography,which combines modal analysis with XRF(Major Oxides)and HR-IcPMS(Trace&Rare Earth Elements)research,is to identify the type of source rock(s),their weathering pattern,and its paleo-environmental *** sandstones were formed from recycled orogen and include lithic and sublithic arenite variants with advanced texture and chemical *** sediments were felsic(Th/co:1.38,cr/Th:9.78,La/Lu:11.58,Th/Sc:0.99,Eu/Eu*:0.66,La/Sc:3.05,La/co:4.18),with contributions from intermediate source rocks and low-rank metamorphics deposited in an active continental margin to a continental island arc *** conditions impacted the sediments of Barails,characterised by being warm and semi-humid to humid which resulted in moderate to a high degree of chemical weathering,as shown by weathering indices like cIA(79.14),PIA(85.47),cIW(86.9),WIP(32.50),IcV(0.71),and Th/U(6.03),which were further additionally supported by c-Value(1.01),PF(1.20),Sr/cu(2.04),and Rb/Sr(0.97).

关键词： Belt of Schuppen Barail Group Sandstone Petrography Geochemistry Provenance Tectonic setting

Prediction modelling in the early detection of neonatal sepsis

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World Journal of Pediatrics 2022年第3期18卷 160-175页

作者： Puspita Sahu Elstin anbu raj Stanly Leslie Edward Simon Lewis Krishnananda Prabhu Mahadev Rao Vijayanarayana Kunhikatta Department of Pharmacy Practice Manipal College of Pharmaceutical SciencesManipal Academy of Higher Education(MAHE)Manipal 576104KarnatakaIndia Department of Paediatrics Kasturba Medical CollegeManipal Academy of Higher Education(MAHE)ManipalKarnatakaIndia 576104 Department of Biochemistry Kasturba Medical CollegeManipal Academy of Higher Education(MAHE)ManipalKarnatakaIndia 576104

Background Prediction modelling can greatly assist the health-care professionals in the management of diseases,thus sparking interest in neonatal sepsis *** main objective of the study was to provide a complete picture of performance of prediction models for early detection of neonatal *** PubMed,Scopus,cINAHL databases were searched and articles which used various prediction modelling measures for the early detection of neonatal sepsis were *** extraction was carried out based on critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies *** data consisted of objective,study design,patient characteristics,type of statistical model,predictors,outcome,sample size and *** model Risk of Bias Assessment Tool was applied to gauge the risk of bias of the *** An aggregate of ten studies were included in the review among which eight studies had applied logistic regression to build a prediction model,while the remaining two had applied artificial *** predictors like neonatal fever,birth weight,foetal morbidity and gender,cervicovaginitis and maternal age were identified for the early detection of neonatal ***,birth weight,endotracheal intubation,thyroid hypofunction and umbilical venous catheter were promising factors for predicting late-onset sepsis;while gestational age,intrapartum temperature and antibiotics treatment were utilised as budding prognosticators for early-onset sepsis *** Prediction modelling approaches were able to recognise promising maternal,neonatal and laboratory predictors in the rapid detection of early and late neonatal sepsis and thus,can be considered as a novel way for clinician decisionmaking towards the disease diagnosis if not used alone,in the years to come.

关键词： Neonatal sepsis Predictors Prediction modelling Systematic review Validation

A 2000 Year Multi-Proxy Evidence of Natural/Anthropogenic Influence on climate from the Southwest coast of India

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Journal of Earth Science 2020年第5期31卷 1029-1044页

作者： M.c.Manoj Jyoti Srivastava Prem raj Uddandam Biswajeet Thakur Birbal Sahni Institute of Paleosciences 53 University RoadL ucknowUttar Pradesh 226007India Banaras Hindu University VaranasiUttar PradeshIndia

The last millennium climate reconstructions are complex and limit our understanding of the mechanisms behind environmental and climate variability. We present multi-proxy centennial-scale records from the cherai, southwest India. The last 2000 cal yr AD record suggests a complex environmental condition that prevailed at the depositional site augmenting the role of natural as well as anthropogenic agents. Increased elemental variations and indices values indicate stronger weathering, presumably wetter conditions and intense precipitation. Provenance studies suggest diverse sources and the main composition fall close to the charnockite and Gneissic composition. Multi-proxy data suggests that a shift towards wetter climatic conditions, which occurred from 910 to 1230 cal yr AD. The core also records a shift towards the drier conditions that started around 1230 cal yr AD with a loss in vegetation diversity. The pollution load index values suggest that the overall study area falls in moderate contamination levels, which are also substantiated with the diatom data indicating human influence in the natural habitat during the deposition time. The present study reveals that the enhanced cd and As concentration is due to strong anthropogenic influence. We compared the multi-proxy record with other continental and marine palaeoclimatic records to explore global and/or regional trends in climate variability during the last 2000 years.

关键词： estuaries monsoon provenance vegetation clmate contamination

Wash water in waterworks:contaminants and process options for reclamation

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Journal of Environmental Sciences 2008年第11期20卷 1300-1305页

作者： c B chidambara raj Tan Ee Kwong Soh Hoo Tiong Paul Stefan Klose centre for Advanced Water Technology Singapore Utilities International Pte Ltd.82 Toh Guan Road East # C4-03Singapore 608575 Public Utilities Board Water Supply (Plants) Department40 Scotts Road #14-00Singapore 228231

Reclamation of clean water from filter backwash water was studied through pilot-scale *** pilot plant consisted of clarification,sand-filtration,and ultrafiltration modules in sequence,with a provision to bypass the sand *** water that conformed to World Health Organization (WHO) guidelines on Potable Quality was ***,aluminum and iron were found to be critical contaminants in process selection and ***,followed by sand filtration,was found to be the minim...

关键词： filter backwash clarification water treatment aluminium Giardia

Proximity Approach to Study the Fusion Barriers for Proton and Helium Induced Reactions

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chinese Physics Letters 2014年第11期31卷 39-43页

作者： raj Kumari Sumandeep Kaur Department of Physics Pan jab University Chandigarh 160 014 India

By using various proximity potentials, the fusion barrier heights and positions are calculated for proton and helium induced reactions with targets in the mass range 51≤ A ≤130 and 12≤ A ≤233, respectively. The calculated fusion barriers are parameterized by using the relations RB^Par = aX1 ＋ b and VB^Par = cX2, where X1 and X2 are A2^1/3 and Z1Z2/RB^Par, respectively. The values of the constants a, b and c are different for different versions of proximity potentials. We find that the parameterized forms derived by using Proximity 1977 yield values closer to the empirical data in proton as well as helium induced reactions and can be used further to estimate directly the barrier parameters for the fusion reactions of proton and helium with any target.

关键词： PROTONS HELIUM cHEMIcAL reactions PARTIcLES (Nuclear physics) MASS (Physics)

Bianchi Type-V Bulk Viscous Barotropic Fluid cosmological Model with Variable G and A

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chinese Physics Letters 2008年第8期25卷 3090-3093页

作者： raj Bali Seema Tinker Department of Mathematics University of Rajasthan 3aipur-302004 India

We investigate the Bianchi type-V bulk viscous barotropic fluid cosmological model with variable gravitational constant G and the cosmological constant A, assuming the condition on metric A/A=B/B=c/c=m/tn potential aswhere A, B, and c are functions of time t, while m and n are constants. To obtain the deterministic mo del, we also assume the relations P = p - 3η H, p = 7P, η = ηop^s, where p is the isotropic pressure, η the bulk viscosity,0≤r≤1 H the Hubble constant, ηo and s are constants. Various physical aspects of the model are *** case of n = 1 is also discussed to compare the results with the actual universe.

关键词： the power-law exponents precipitation durative abrupt precipitation change

Automatic Segmentation of Liver from Abdominal computed Tomography Images Using Energy Feature

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computers, Materials & continua 2021年第4期67卷 709-722页

作者： Prabakaran rajamanickam Shiloah Elizabeth Darmanayagam Sunil Retmin raj cyril raj University Department of computer Science Engineering Anna UniversityChennai600025India University Department of Information Technology MIT CampusChennai600044India

Liver Segmentation is one of the challenging tasks in detecting and classifying liver tumors from computed Tomography(cT)*** segmentation of hepatic organ is more intricate task,owing to the fact that it possesses a sizeable quantum of *** paper proposes an algorithm for automatic seed point selection using energy feature for use in level set algorithm for segmentation of liver region in cT *** effectiveness of the method can be determined when used in a model to classify the liver cT images as tumorous or *** involves segmentation of the region of interest(ROI)from the segmented liver,extraction of the shape and texture features from the segmented ROI and classification of the ROIs as tumorous or not by using a classifier based on the extracted *** this work,the proposed seed point selection technique has been used in level set algorithm for segmentation of liver region in cT scans and the ROIs have been extracted using Fuzzy c Means clustering(FcM)which is one of the algorithms to segment the *** dataset used in this method has been collected from various repositories and scan *** outcome of this proposed segmentation model has reduced the area overlap error that could offer the intended accuracy and *** gives better results when compared with other existing *** execution in short span of time is another advantage of this method which in turns helps the radiologist to ascertain the abnormalities instantly.

关键词： Liver segmentation automatic seed point tumor segmentation classification fuzzy c means clustering