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- 저자 : Kirti (검색결과 47 건)
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Solid-Phase Synthesis of 2-Arylbenzothiazole Using Silica Sulfuric Acid under Microwave Irradiation
Kirti S. Niralwad,Bapurao B. Shingate,Murlidhar S. Shingare 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.4
The condensation of several aromatic/heteroaromatic aldehydes with 2-aminothiophenol catalyzed by silica sulfuric acid under microwave irradiation afforded 2-arylbenzothiazoles in high yields and short reaction times under solvent-free conditions. The major advantages of the present method are good yields, ecofriendly, reusable catalyst, mild and solvent-free reaction conditions.
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Kirti, Jagbir Singh,Singh, Navneet,Joshi, Rahul The Korean Society of Systematic Zoology 2014 Animal Systematics, Evolution and Diversity Vol.30 No.1
Caeneressa diaphana muirheadi (Felder) and Caeneressa brithyris (Druce) have been recorded for the first time from India. Further, a new combination viz. Caeneressa melaena (Walker) comb. nov., has also been proposed on the basis of external genitalic features. With these records, genus Caeneressa will be represented by five species from India, Caeneressa diaphana (Kollar), Caeneressa diaphana muirheadi (Felder), Caeneressa brithyris (Druce), Caeneressa melaena (Hampson) and Caeneressa swinhoei (Leech). The studied material was collected from North-Eastern states of India. Caeneressa brithyris (Druce) was collected near riverside at low altitude whereas the other two species were collected at high altitude.
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Pharmacognostical Evaluation of Sphaeranthus indicus (Linn.)
Kirti. S. Prabhu,Richard Lobo,C. Dinesh Kumar,K. Rajendran,Annie Shirwaikar 한국생약학회 2006 Natural Product Sciences Vol.12 No.2
study presents a detailed pharmacognostical study of the underground portion of the crude drugSphaeranthus indicus dian system of medicine. The root and stolonwere studied using procedures of light, conofocal microscopy, WHO recommended-physicochemical determinations,and authentic phytochemical procedures. The physicochemical, morphological, and histological parameters presentedin this paper may be proposed as parameters to identify and establish the authenticity of S. indicus root and stolon.KeywordsS. indicus, pharmacognosy, adulterants
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Kirti Kumari,Piyush Kashyap,Prasun Chakrabarti 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.3
Probiotics have become increasingly popular as consumers demand balanced nutrition and health benefits from their diet. However, lactose intolerance and allergies to milk proteins may make dairy-based probiotics unsuitable for some individuals. Thus, probiotics derived from cereals and millets have shown promise as an alternative to dairy probiotics. Soaking, germination, and fermentation can reduce the anti-nutritional factors present in cereal grains and improve nutrient quality and bioactive compounds. Biochemical properties of probiotics are positively influenced by fermentation and germination. Thus, the current review provides an overview of the effect of fermentation and germination on the biochemical properties of probiotics. Further, probiotics made from non-dairy sources may prevent intestinal infections, improve lactose metabolism, reduce cholesterol, enhance immunity, improve calcium absorption, protein digestion, and synthesize vitamins. Finally, health-conscious consumers seeking non-dairy probiotic options can now choose from a wider variety of low-cost, phytochemically rich probiotics derived from germinated and fermented cereal grains.
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Impact of Globalization on Employment Distribution and Urban Mobility in Delhi
Kirti Bhandari,John Black,Yoshitsugu Hayashi 서울시립대학교 도시과학연구원 2008 도시과학국제저널 Vol.12 No.1
Delhi has been identified as one of the fastest growing cities of the world. With an estimated 13.8 million people in Delhi in 2001, an overwhelming 93% was urban. The forces of globalization are playing a dominant role in shaping the urban form where the city limits are expanding to accommodate increasing job opportunities. The “Special Economic Zone” policy may be considered the government’s response to globalization. Rapidly urbanizing towns at the periphery of the National Capital Territory (NCT) are Gurgaon, Faridabad and NOIDA (New Okhla Industrial Development Authority). Supported by quality infrastructure, these zones attract a large Foreign Direct Investment (FDI). Master plans have proposed the integration of these townships, which are a part of the National Capital region (NCR) to the NCT. However strict non-adherence to these plans has led to haphazard growth within the NCT and NCR. The significance of this paper is to show results from a combination of institutional analyses together with empirical investigations of spatial data to assess urban development outcomes in Delhi. The study tries to assess the changes in the urban form, commuting patterns and accessibility which have resulted due to the forces of globalization in Delhi. Results indicate that the people working in the satellite towns prefer to choose to live there, thereby resulting in shorter trips in these zones. Whereas the gravity type land use accessibility indices indicate that the city centre produces the highest accessibility which decreases towards the periphery for office stock, which subsequently increases in the satellite townships. However, due to the policies of relocation of industries to the periphery, these towns exhibit high accessibility for industrial locations. Delhi has been identified as one of the fastest growing cities of the world. With an estimated 13.8 million people in Delhi in 2001, an overwhelming 93% was urban. The forces of globalization are playing a dominant role in shaping the urban form where the city limits are expanding to accommodate increasing job opportunities. The “Special Economic Zone” policy may be considered the government’s response to globalization. Rapidly urbanizing towns at the periphery of the National Capital Territory (NCT) are Gurgaon, Faridabad and NOIDA (New Okhla Industrial Development Authority). Supported by quality infrastructure, these zones attract a large Foreign Direct Investment (FDI). Master plans have proposed the integration of these townships, which are a part of the National Capital region (NCR) to the NCT. However strict non-adherence to these plans has led to haphazard growth within the NCT and NCR. The significance of this paper is to show results from a combination of institutional analyses together with empirical investigations of spatial data to assess urban development outcomes in Delhi. The study tries to assess the changes in the urban form, commuting patterns and accessibility which have resulted due to the forces of globalization in Delhi. Results indicate that the people working in the satellite towns prefer to choose to live there, thereby resulting in shorter trips in these zones. Whereas the gravity type land use accessibility indices indicate that the city centre produces the highest accessibility which decreases towards the periphery for office stock, which subsequently increases in the satellite townships. However, due to the policies of relocation of industries to the periphery, these towns exhibit high accessibility for industrial locations.
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Economic and Equity Evaluation of Delhi Metro
Kirti Bhandari,Hirokazu Kato,Yoshitsugu Hayashi 서울시립대학교 도시과학연구원 2009 도시과학국제저널 Vol.13 No.2
This paper examines the economic and equity implications of the introduction of a metro system in Delhi. Generalized cost of each mode is used as an indicator of mobility, where as, accessibility is measured in terms of consumer surplus. A combined mode destination choice model is employed to assess the change in the generalized costs of existing modes after the metro introduction. The accessibility benefits of a metro are estimated using the logsum approach to estimate the consumer surplus of transit riders. The well established quantitative measure of equity, the GINI coefficient, is used to link mobility and accessibility to equity. Results indicate a reduction in the generalized costs of three existing modes, i.e. bus, car and the two wheelers. The magnitude of change is the lowest for bus and the highest for two wheelers. The estimated average change in welfare according the calibrated model is 45.32 Rs/trip (0.923 $US) which equals 90.64 Rs/day (1.85 $US), assuming two work trips per person per day. The results of the equity measure indicate a shift towards the line of perfect equality, concluding that the introduction of metro shows a positive impact on equity (of mobility and accessibility). Keywords: mobility, accessi This paper examines the economic and equity implications of the introduction of a metro system in Delhi. Generalized cost of each mode is used as an indicator of mobility, where as, accessibility is measured in terms of consumer surplus. A combined mode destination choice model is employed to assess the change in the generalized costs of existing modes after the metro introduction. The accessibility benefits of a metro are estimated using the logsum approach to estimate the consumer surplus of transit riders. The well established quantitative measure of equity, the GINI coefficient, is used to link mobility and accessibility to equity. Results indicate a reduction in the generalized costs of three existing modes, i.e. bus, car and the two wheelers. The magnitude of change is the lowest for bus and the highest for two wheelers. The estimated average change in welfare according the calibrated model is 45.32 Rs/trip (0.923 $US) which equals 90.64 Rs/day (1.85 $US), assuming two work trips per person per day. The results of the equity measure indicate a shift towards the line of perfect equality, concluding that the introduction of metro shows a positive impact on equity (of mobility and accessibility). Keywords: mobility, accessi
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MRTS System in Delhi: Increase in Mode Choice and its Mobility and Equity Implications
Kirti Bhandari,Hirokazu Kato,Yoshitsugu Hayashi 서울시립대학교 도시과학연구원 2008 도시과학국제저널 Vol.12 No.2
The concern for policy makers is to find suitable answers for the growing mobility needs in most developing cities, as they are currently facing serious problems related to increasing road traffic leading to traffic congestion and pollution. Since most transportation is a derived demand, the goal of transport policy should be to improve mobility so as to enhance accessibility. This paper begins by identifying the mobility needs associated with access to different urban facilities in a rapidly developing mega-city, Delhi. Mobility preferences by population groups, income classes, location, vehicle ownership and by mode are presented. Second, the paper tries to examine the mobility benefits due to the introduction of the MRTS system in Delhi. The standard multinomial logit formulation is used to estimate mode-destination choice model for two scenarios; before and after an introduction of the MRTS for work trips. The change in value of time, representing the change in wage rate, is used as a measure of mobility. Finally, the study proposes a link between mobility and equity using the well established quantitative measure of equity, the Gini coefficient. Results indicate that the introduction of the MRTS system leads to the change in the value of time by Rs/hr 33.74 (0.69 $US/hr). Further, the equity implications of the increase in value of time suggest a positive change (towards equity). The concern for policy makers is to find suitable answers for the growing mobility needs in most developing cities, as they are currently facing serious problems related to increasing road traffic leading to traffic congestion and pollution. Since most transportation is a derived demand, the goal of transport policy should be to improve mobility so as to enhance accessibility. This paper begins by identifying the mobility needs associated with access to different urban facilities in a rapidly developing mega-city, Delhi. Mobility preferences by population groups, income classes, location, vehicle ownership and by mode are presented. Second, the paper tries to examine the mobility benefits due to the introduction of the MRTS system in Delhi. The standard multinomial logit formulation is used to estimate mode-destination choice model for two scenarios; before and after an introduction of the MRTS for work trips. The change in value of time, representing the change in wage rate, is used as a measure of mobility. Finally, the study proposes a link between mobility and equity using the well established quantitative measure of equity, the Gini coefficient. Results indicate that the introduction of the MRTS system leads to the change in the value of time by Rs/hr 33.74 (0.69 $US/hr). Further, the equity implications of the increase in value of time suggest a positive change (towards equity).
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Kirti Sharma,Vishal Dutta,Sheetal Sharma,Pankaj Raizada,Ahmad Hosseini-Bandegharaei,Pankaj Thakur,Pardeep Singh 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.78 No.-
Recently, layered bismuth oxyhalides (BiOX, X = F, Cl, Br and I) have received significant attention aspotential photocatalysts for energy and environment applications. However, limited visible light activityand recombination of photogenerated charge carriers limit their applications for photocatalytic waterpurification. In this review, various strategies such as heterojunction formation, metal/non-metal doping,interface modification, enhancement in Bi content, inner coupling between different BiOX photocatalyst,use of sensitizers and creation of oxygen vacancies was deliberated for improved photocatalyticperformance of BiOX. The integration of BiOX with other photocatalysts, mechanism for enhancedactivity and conclusive outlook with future challenges was also elaborated.
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