检索结果-南通市图书馆

Nanomaterials for the abatement of cadmium (Ⅱ) ions from water/ wastewater

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2019年第7期12卷 1489-1507页

作者： Kumar vikrant Vanish Kumar Kowsalya Vellingiri Ki-Hyun Kim Department of Civil and Environmental Engineering Hanyang University222 Wangsimni-roSeoul 04763Republic of Korea National Agri-Food Biotechnology Institute (NABI) S.A.S. NagarPunjab 140306India Environmental and Water Resources Engineering Division Department of Civil Engineering IIT MadrasChennai 600036India

The rapid rise of modern industry is the source of unchecked effluents containing many pernicious heavy metals (e.g.,cadmium).To rehabilitate the ecology,food resources,and health of humans and animals,various conventional methodologies are being used in wastewater treatment facilities for the abatement of ***,the development of advanced,economical,and efficient adsorbents is needed because of the many shortcomings of conventional methods (e.g.,high cost,intensive operation,and inefficiency).Recent advancements in materials science and chemistry have introduced the use of nanomaterials,which possess very high specific surface areas and multiple functionalities,for the removal of specific targets such as *** review explores the recent developments and trends in nanomaterial adsorption technology for the mitigation of *** paper further surveys the present obstacles and future opportunities for the advancement of nanomaterial-based technologies in the area of water treatment.

关键词： nanomaterials cadmium adsorption pollution control water purification heavy metal

Comparison of efficacy of lung ultrasound and chest X-ray in diagnosing pulmonary edema and pleural effusion in ICU patients: A single centre, prospective, observational study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Anesthesiology 2024年第3期14卷 41-50页

作者： Kunal Tewari Sumanth Pelluru Deepak Mishra Nitin Pahuja Akash Ray Mohapatra Jyotsna sharma Om Bahadur Thapa Manjot Multani Department of Anesthesiology and Critical Care Armed Forces Medical College Pune India Department of Anesthesiology and Critical Care Military Hospital Bhopal India

Background and Aims While chest X-ray (CXR) has been a conventional tool in intensive care units (ICUs) to identify lung pathologies, computed tomography (CT) scan remains the gold standard. Use of lung ultrasound (LUS) in resource-rich ICUs is still under investigation. The present study compares the utility of LUS to that of CXR in identifying pulmonary edema and pleural effusion in ICU patients. In addition, consolidation and pneumothorax were analyzed as secondary outcome measures. Material and Methods This is a prospective, single centric, observational study. Patients admitted in ICU were examined for lung pathologies, using LUS by a trained intensivist;and CXR done within 4 hours of each other. The final diagnosis was ascertained by an independent senior radiologist, based on the complete medical chart including clinical findings and the results of thoracic CT, if available. The results were compared and analyzed. Results Sensitivity, specificity and diagnostic accuracy of LUS was 95%, 94.4%, 94.67% for pleural effusion;and 98.33%, 97.78%, 98.00% for pulmonary edema respectively. Corresponding values with CXR were 48.33%, 76.67%, 65.33% for pleural effusion;and 36.67%, 82.22% and 64.00% for pulmonary edema respectively. Sensitivity, specificity and diagnostic accuracy of LUS was 91.30%, 96.85%, 96.00% for consolidation;and 100.00%, 79.02%, 80.00% for pneumothorax respectively. Corresponding values with CXR were 60.87%, 81.10%, 78.00% for consolidation;and 71.3%, 97.20%, 96.00% for pneumothorax respectively. Conclusion LUS has better diagnostic accuracy in diagnosis of pleural effusion and pulmonary edema when compared with CXR and is thus recommended as an effective alternative for diagnosis of these conditions in acute care settings. Our study recommends that a thoracic CT scan can be avoided in most of such cases.

关键词： Chest X ray (CXR) Consolidation Pulmonary edema Pleural effusion Lung ultrasound (LUS) Pneumothorax

Comprehensive analysis of uncertainty quantification for the^(58)Ni(n,p)^(58)Co reaction cross section

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第9期48卷 170-175页

作者： Mahesh Choudhary Aman sharma Namrata Singh Mahima Upadhyay Punit Dubey A.Gandhi Akash Hingu G Mishra Sukanya De L.S.Danu Ajay Kumar R.G.Thomas Saurav Sood Sajin Prasad S.Mukherjee I.N.Ruskov Yu.N.Kopatch A.Kumar Department of Physics Banaras Hindu UniversityVaranasi 221005India Horia Hulubei National Institute of Physics and Nuclear Engineering-IFIN-HH Bucharest 077125Romania Department of Physics The Maharaja Sayajirao University of BarodaVadodara 390002India Nuclear Physics Division Bhabha Atomic Research CentreMumbai 400085India Health Physics Division Bhabha Atomic Research CentreMumbai 400085India Department of Electrical Power Engineering Brno University of TechnologyBrno 61600Czech Republic Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of SciencesSofia 1784Bulgaria Joint Institute for Nuclear Research(JINR) Dubna 141980Russia

In this study,we measured the^(58)Ni(n,p)^(58)Co reaction cross section with neutron energies of 1.06,1.86,and 2.85 *** cross section was measured using neutron activation techniques andγ-ray spectroscopy,and it was compared with cross section data available in the ***,we calculated the covariance matrix of the measured cross section for the aforementioned nuclear *** uncertainties of the theoretical calculation for^(58)Ni(n,p)^(58)Co reaction cross section were calculated via Monte Carlo *** this study,we used uncertainties in the optical model and level density parameters to calculate uncertainties in the theoretical cross *** theoretical calculations were performed by using *** this study,we aim to analyze the effect of uncertainties of the nuclear model input as well as different experimental variables used to obtain the values of reaction cross section.

关键词： ^(58)Ni(n p)^(58)Co reaction γ-ray spectroscopy uncertainty quantification of cross section covariance analysis

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

莫迪终于认识到了炒作的作用不过如此

商业周刊（中文版） 2024年第9期 28-29页

作者： Mihir sharma 逸思(译) 不详

这位长期执政的印度领导人将开启第三个任期。但选民们已经证明,政治定律依然有效。印度变幻莫测。这是不争的事实,但过去十年来,印度人自已似乎都把这给忘了。自从2014年纳伦德拉·莫迪(Narendra Modi)出人意料以前所未有的绝对多数赢... 详细信息

这位长期执政的印度领导人将开启第三个任期。但选民们已经证明,政治定律依然有效。印度变幻莫测。这是不争的事实,但过去十年来,印度人自已似乎都把这给忘了。自从2014年纳伦德拉·莫迪(Narendra Modi)出人意料以前所未有的绝对多数赢得议会席位上台执政以来,很多人都认为印度的政治格局已经永远改变了。联盟时代结束了,印度似乎正不可逆转地走向一党独大局面。

关键词：莫迪长期执政一党独大政治格局绝对多数印度人选民伦德拉

Combination therapies for advanced hepatocellular carcinoma: a beacon of light or a castle in the air

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2022年第4期11卷 629-631页

作者： vikrant Rai Sandeep Mukherjee Department of Translational Research Western University of Health SciencesPomonaCAUSA Department of Medicine Creighton University School of MedicineOmahaNEUSA

The review article by Zhang et al.(1)critically discussed the efficacy of combination therapies for advanced hepatocellular carcinoma(HCC)and the factors affecting efficacy and overall survival(OS)with a particular emphasis on timing and sequence of combination therapies to improve *** role of interventional therapies such as radio-frequency ablation(RFA)and chemoembolization were also discussed-although ablation is well-established for the treatment of small tumors,cancer,it may not be appropriate for tumors near the liver capsule or adjacent to blood vessels due to a higher risk of complications and local recurrence from untreated perivascular cells.

关键词： therapies hepatocellular al.

In-hospital outcomes in COVID-19 patients with non-alcoholic fatty liver disease by severity of obesity:Insights from national inpatient sample 2020

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2024年第6期16卷 912-919页

作者： Sashwath Srikanth Vibhor Garg Lakshmi Subramanian Jyoti Verma Hansika sharma Harroop Singh Klair Shrenil A Kavathia Jithin Kolli Teja Nikhil Sai Vasireddy Kumar Anmol Dhanush Kolli Shruti Sanjay Bodhankar Sobya Hashmi Shaylika Chauhan Rupak Desai Department of Medicine ECU Health Medical CenterGreenvilleNC 27834United States Department of Medicine Jacobi Medical Center/Albert Einstein College of MedicineBronxNY 10461United States Department of Medicine North Alabama Medical CentreFlorenceAL 35630United States Department of General Medicine Gandhi Medical CollegeSecunderabad 500003TelanganaIndia Department of Medicine Government Medical CollegePatiala 147001PunjabIndia Department of Medicine B.J.Medical CollegeAhmedabad 380016GujaratIndia Department of Medicine JSS Medical CollegeMysore 570015KarnatakaIndia Department of Internal Medicine Gandhi Medical CollegeSecunderabad 500003TelanganaIndia Department of Medicine Kasturba Medical CollegeManipal 575001KarnatakaIndia Clinical Extern Department of Internal MedicineBeaumont HospitalDearbornMI 48124United States Department of Internal Medicine Geisinger Health SystemWilkes-BarrePA 18702United States Independent Researcher AtlantaGA 30079United States

BACKGROUND Non-alcoholic fatty liver disease(NAFLD)increases the risk of cardiovascular diseases independently of other risk ***,data on its effect on cardiovascular outcomes in coronavirus disease 2019(COVID-19)hospitalizations with varied obesity levels is *** management and patient care depend on understanding COVID-19 admission results in NAFLD patients with varying obesity *** To study the in-hospital outcomes in COVID-19 patients with NAFLD by severity of *** COVID-19 hospitalizations with NAFLD were identified using International Classification of Disease-10 CM codes in the 2020 National Inpatient Sample *** and Obesity Classes Ⅰ,Ⅱ,and Ⅲ(body mass index 30-40)were *** adverse cardiac and cerebrovascular events(MACCE)(all-cause mortality,acute myocardial infarction,cardiac arrest,and stroke)were compared between *** regression analyses adjusted for sociodemographic,hospitalization features,and *** Our analysis comprised 13260 hospitalizations,7.3% of which were overweight,24.3% Class Ⅰ,24.1% Class Ⅱ,and 44.3% Class Ⅲ.Class Ⅲ obesity includes younger patients,blacks,females,diabetics,and hypertensive *** multivariable logistic analysis,Class Ⅲ obese patients had higher risks of MACCE,inpatient mortality,and respiratory failure than Class Ⅰ obese *** Ⅱ obesity showed increased risks of MACCE,inpatient mortality,and respiratory failure than Class I,but not *** obesity classes had non-significant risks of MACCE,inpatient mortality,and respiratory failure compared to the overweight *** Class Ⅲ obese NAFLD COVID-19 patients had a greater risk of adverse outcomes than class Ⅰ.Using the overweight group as the reference,unfavorable outcomes were not significantly *** obesity had a greater risk of MACCE regardless of the referent group(overweight or Class Ⅰ obese)compared to overweight NAFLD patients admitte

关键词： Non-alcoholic fatty liver disease Obesity Obese Body mass index Major adverse cardiac and cerebrovascular events Mortality Acute myocardial infarction Cardiac arrest Stroke

Charged grain boundary transitions in ionic ceramics for energy applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

npj Computational Materials 2019年第1期5卷 947-958页

作者： K.S.N.vikrant R.Edwin García School of Materials Engineering Purdue UniversityWest LafayetteIN 47907USA

Surfaces and interfaces in ionic ceramics play a pivotal role in defining the transport limitations in many of the existing and emerging applications in energy-related systems such as fuel cells,rechargeable batteries,as well as advanced electronics such as those found in semiconducting,ferroelectric,and piezotronic ***,a variational framework has been developed to understand the effects of the intrinsic and extrinsic ionic species and point defects on the structural and electrochemical stability of grain boundaries in polycrystalline *** theory predicts the conditions for the interfacial electrochemical and structural stability and phase transitions of charged interfaces and quantifies the properties induced by the broad region of electrochemical influence in front of a grain boundary capable of spanning anywhere from a few angtroms to entire *** demonstrate the validity of this theory for Y_(x)Zr_(1−x)O_(2−x/2),cubic yttria stabilized zirconia.

关键词： ceramics grain transitions

Chemical, mechanical, and thermal expansion properties of a carbon nanotube-reinforced aluminum nanocomposite

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2016年第2期23卷 222-233页

作者： Manjula sharma Vimal sharma Department of Physics National Institute of Technology Hamirpur

In the present study,the chemical and mechanical properties and the thermal expansion of a carbon nanotube（CNT）-based crystalline nano-aluminum（nano Al） composite were *** properties of nanocomposites were tailored by incorporating CNTs into the nano Al matrix using a physical mixing *** elastic moduli and the coefficient of thermal expansion（CTE） of the nanocomposites were also estimated to understand the effects of CNT reinforcement in the Al *** characterization of the nanocomposite reveals that the CNTs are dispersed and embedded in the Al *** experimental results indicate that the incorporation of CNTs into the nano Al matrix results in the increase in hardness and elastic modulus along with a concomitant decrease in the coefficient of thermal expansion The hardness and elastic modulus of the nanocomposite increase by 21%and 20%,respectively,upon CNT *** CTE of CNT/A1 nanocomposite decreases to 70%compared with that of nano Al.

关键词： metal matrix composites carbon nanotubes nanocomposites chemical properties thermal expansion mechanical properties

Electrospun CNT embedded ZnO nanofiber based biosensor for electrochemical detection of Atrazine: a step closure to single molecule detection

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2020年第1期6卷 1353-1362页

作者： Patta Supraja vikrant Singh Siva Rama Krishna Vanjari Shiv Govind Singh Department of Electrical Engineering Indian Institute of TechnologyHyderabadTelangana 502285India School of Medicine University of California DavisDavisCaliforniaUSA

In this study we have reported the design and development of a facile,sensitive,selective,and label-free electrochemical sensing platform for the detection of atrazine based on MWCNT-embedded ZnO *** nanofibers were characterized using scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),X-ray photoelectron spectroscope(XPS),UV-Visible spectroscope(UV-VIS),and Fourier-transform infrared spectroscope(FTIR).Electrochemical properties of MWCNT-ZnO nanofiber-modified electrodes were assessed using electrochemical impedance spectroscopy(EIS)and cyclic voltammetry(CV).Binding event of atrazine to anti-atrazine antibody,which immobilized on nanofiber-modified electrode via EDC and NHS chemistry,was transduced with *** to high conductivity,surface area,and low bandgap of MWCNT-ZnO nanofibers,we have achieved the sensitivity and limit of detection(LoD)of sensor as 21.61(KΩμg^(−1) mL^(−1))cm^(−2) and 5.368zM for a wide detection range of 10 zM–1µ*** proposed immunosensing platform has good stability,selectivity,repeatability,and reproducibility,and are less prone to interference.

关键词： fiber fibers closure