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Dimethoxymethane production via CO_(2)hydrogenation in methanol over novel ru based hierarchical BEA

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Journal of Energy Chemistry 2022年第3期31卷 181-189,I0006页

作者： Waqar Ahmad Fan Liang Chan Abhijit Shrotri Yayati Naresh palai Huanting Wang Akshat Tanksale Department of Chemical Engineering Monash UniversityClayton 3800Australia Institute for Catalysis Hokkaido UniversitySapporo 001-0021Japan

Dimethoxymethane(DMM),a diesel blend fuel,is being researched with high interest recently due to its unique fuel *** is commercially produced via a two step-process of methanol oxidation to make formaldehyde,followed by its condensation with *** study presents a one-pot method of DMM synthesis from methanol mediated carbon dioxide hydrogenation over novel heterogeneous *** effect of catalyst pore structure was investigated by synthesizing 3 wt%ru over novel hierarchical zeolite beta(HBEASX)and comparing against ru doped commercial zeolite beta(CBEA)and desilicated hierarchical zeolite beta(HBZDS).The results showed that 3%ru/HBEASX provided the best activity for DMM production due to its large average pore *** also showed the decisive role of SiO_(2)/Al_(2)O_(3)molar ratio,with SiO_(2)/Al_(2)O_(3)=75 providing the highest DMM yield of 13.2 mmol/*** with ca.100%*** activity of 3%ru/HBEAS3 after 5 recycle steps demonstrated the reusability of this catalyst.

关键词： Dimethoxymethane Methanol solvent CO_(2)hydrogenation Hierarchical BEA SiO_(2)/Al_(2)O_(3)molar ratio ru catalysts

Indian medicinal plants are effective in the treatment and management of COVID-19

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BIOCELL 2023年第4期47卷 677-695页

作者： SUBHASH CHANDrA SANTWANA palai EDINArDO FAGNEr FErrEIrA-MATIAS IVO CAVALCANTE PITA-NETO CÍCErO LUCAS GOMES-rAMALHO EDLANE MArTINS DE ANDrADE rAY SILVA DE ALMEIDA MArCELLO IrITI HENrIQUE DOUGLAS MELO-COUTINHO Department of Pharmaceutical Chemistry SGRR UniversityUttarakhand248001India Department of Pharmaceutical Chemistry HNB Garhwal UniversitySrinagar246174India Department of Veterinary Pharmacology&Toxicology College of Veterinary Science and Animal HusbandryBhubaneswar751003India CECAPE—College of Dentistry Juazeiro do Norte63050-203Brazil Department of Biological Chemistry Regional University of CaririCrato63105-000Brazil Department of Biomedical Surgical and Dental SciencesUniversitàdegli Studi di MilanoMilan20133Italy National Interuniversity Consortium of Materials Science and Technology Florence50121Italy

Indian medicinal plants are referred to as the“nectar of life”owing to their phytochemicals and bioactive complexes that are beneficial in treating *** disease 2019(COVID-19)is a global health issue without any proper *** indigenous plants of India can be exploited to control the precise signs of *** Ministry of AYUSH(Ayurveda,Yoga and Naturopathy,Unani,Siddha,and Homeopathy)has advised routine usage of medicinal plants for *** plants like Zingiber officinalis,Azadirachta indica,Ocimum sanctum,Nigella sativa,Withania somnifera,Curcuma longa,Piper nigrum,Allium sativum,Tinospora cordifolia,*** immunity-boosting,antiviral,antibacterial,antioxidant and anti-inflammatory actions that can suppress and treat symptoms of *** vitro,in vivo as well as in silico validation,these phytochemicals can help us to manage and treat COVID-19 *** integration of traditional knowledge in the prophylaxis of corona infection and current skills validating it for the development of precise and powerful therapeutic approaches will more efficiently resolve different clinical aspects of *** review focuses on both traditional and emergent methods to prevent and treat COVID-19 with various Indian medicinal plants along with their phytochemicals.

关键词： Antiviral Corona virus Diagnosis Immunity Herbs

realization of Potassium Chloride Sensor Using Photonic Crystal Fiber

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Soft Nanoscience Letters 2013年第4期3卷 16-19页

作者： Gopinath palai Nilambar Mudului Santosh K. Sahoo Sukanta K. Tripathy Gandhi Engineering College Bhubaneswar India Gandhi Institute for Technological Advancement Bhubaneswar India Gandhi Institute for Technological Advancement Bhubaneswar India National Institute of Science and Technology Berhampur India.

We propose to measure the concentration of potassium chloride using photonic crystal fiber having circular air holes of diameter 400 nm. The principle of measurement is based on the linear variation of the transmitted field emerging from the PCF with respect to concentration of potassium chloride. Field distribution in photonic crystal structure is simulated using plane wave expansion (PWE) method. Simulation result reveals that the intensity of transmitted light varies linearly with respect to concentration of potassium chloride filled in the air holes.

关键词： PCF Potassium Chloride PWE

Modelling overall transmitted efficiency at 1550 nm for polymer grating Silicon-on-insulator structure with defect

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Frontiers of Optoelectronics 2013年第2期6卷 153-159页

作者： G. palai T. K. DHIr, B. NATH S. L. PATrA Gandhi Institute for Technological Advancement (GITA) Bhubaneswar Odisha 752054 India

The overall transmitted efficiency at 1550 nm for Nylon-Teflon/Teflon-Nylon （N-T/T-N） grating Silicon- on-insulator （SOI） structure with defect in even and odd position was investigated in this paper. Different types of losses, such as absorption, reflection and diffraction, were considered to find out the overall transmitted efficiency. The absorption loss of both Nylon-Teflon （N-T） and Teflon-Nylon （T-N） structure is zero at the wavelength of 1550 nm. reflectance of these structures was analyzed by using plane wave expansion （PWE） method. Simulation result showed that reflectance as well as transmittance was varied linearly with respect to defect at odd and even positions. Simulation is also done for the diffraction efficiency at 1550nm with respect to detuning from Bragg＇s angle, which was ranged from -0.4 rad to ＋ 0.4 rad. Finally, it was found that overall transmitted efficiency increased as even defect position varied from 2nd to 10th for both N-T/T-N grating SOI structure. Similarly, the overall transmitted efficiency decreased as odd defect position changed from 3rd to l lth for both N-T/T-N grating SOI structure.

关键词： overall transmitted efficiency Nylon-Teflon/ Teflon-Nylon (N-T/T-N) grating plane wave expansion (PWE) Silicon-on-insulator (SOl)

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世界建筑导报 2020年第1期35卷 22-27页

作者： Pariya Kiattitheerachai palai Sananwai Thanayuth Polnwiang 无不详 W Workspace(摄影)

1、我们的目标是在La Salle lane一带创造一个新的空间,在新发展区内建立市区居民与乡郊居民之间的联系。随着时间的推移,天空列车沿线的新的卫星发展已经改变了该地区的观感。原本是新鲜街市、零售点、学校的地区,已逐渐转变为高层、... 详细信息

1、我们的目标是在La Salle lane一带创造一个新的空间,在新发展区内建立市区居民与乡郊居民之间的联系。随着时间的推移,天空列车沿线的新的卫星发展已经改变了该地区的观感。原本是新鲜街市、零售点、学校的地区,已逐渐转变为高层、低层公寓、社区商场和国际学校。设计理念为放缓La Salle Lane地区的发展,以减少该地区新发展的影响,减少这些破坏性变化的影响。目的是重建绿化区,使其成为天然空气净化器,减少新发展区的热量滞留。绿化区还可为社区提供新的娱乐区域,让居民在享受自然环境的同时,也可方便地使用当地设施。

关键词：空气净化器绿化区市区居民零售点自然环境商场破坏性设计理念