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| 1 | Underwater persistent bubble-assisted femtosecond laser ablation for hierarchical micro/nanostructuring显示文摘In this study,we demonstrate a technique termed underwater persistent bubble assisted femtosecond laser ablation in liquids(UPB-fs-LAL)that can greatly expand the boundaries of surface micro/nanostructuring through laser ablation because of its capability to create concentric circular macrostructures with millimeter-scale tails on silicon substrates.Long-tailed macrostructures are composed of layered fan-shaped(central angles of 45°–141°)hierarchical micro/nanostructures,which are produced by fan-shaped beams refracted at the mobile bubble interface(.50°light tilt,referred to as the vertical incident direction)during UPB-fs-LAL line-by-line scanning.Marangoni flow generated during UPB-fs-LAL induces bubble movements.Fast scanning(e.g.1mms−1)allows a long bubble movement(as long as 2mm),while slow scanning(e.g.0.1mms−1)prevents bubble movements.When persistent bubbles grow considerably(e.g.hundreds of microns in diameter)due to incubation effects,they become sticky and can cause both gas-phase and liquidphase laser ablation in the central and peripheral regions of the persistent bubbles.This generates low/high/ultrahigh spatial frequency laser-induced periodic surface structures(LSFLs/HSFLs/UHSFLs)with periods of 550–900,100–200,40–100 nm,which produce complex hierarchical surface structures.A period of 40 nm,less than 1/25th of the laser wavelength(1030 nm),is the finest laser-induced periodic surface structures(LIPSS)ever created on silicon.The NIR-MIR reflectance/transmittance of fan-shaped hierarchical structures obtained by UPB-fs-LAL at a small line interval(5μm versus 10μm)is extremely low,due to both their extremely high light trapping capacity and absorbance characteristics,which are results of the structures’additional layers and much finer HSFLs.In the absence of persistent bubbles,only grooves covered with HSFLs with periods larger than 100 nm are produced,illustrating the unique attenuation abilities of laser properties(e.g.repetition rate,energy,incident angle,etc)by persistent bubbles with different curvatures.This research represents a straightforward and cost-effective approach to diversifying the achievable hierarchical micro/nanostructures for a multitude of applications. | Dongshi Zhang Bikas Ranjan Takuo Tanaka Koji Sugioka | 2020 | International Journal of Extreme Manufacturing2020，2，1： | 11 |
| 2 | Hypobaric-hypoxia Induces Alteration in Microbes and Microbes-associated Enzyme Profile in Rat Colonic Samples显示文摘Present study deals with the straight impact of hypobaric hypoxia on the quantity and composition of some predominant fecal microflora and its functional aspects.For that,isolated fecal contents of rat were exposed to two different simulated | Chiranjit MAITY Atanu ADAK Kuntal GHOSH Bikas R PATI Keshab C MONDAL | 2013 | Biomedical and Environmental Sciences2013，26，10： | 4 |
| 3 | Comparison of lipid profile in different grades of non-alcoholic fatty liver disease diagnosed on ultrasound显示文摘Objective:To detect and compare serum lipid abnormalities in patients diagnosed with different grades of non-alcoholic fatly liver on ultrasonography.Methods:A total of 70 cases which included 30 males and 40 females,diagnosed as nonalcoholic fatty liver disease(NAFLD)on ultrasound were investigated with serum lipid profile.Then a comparison of lipid abnormalities between different grades of fatty liver diagnosed on ultrasound was done.P value was calculated by using analysis of variance lest(ANOVA)and P value<0.05 was considered as statistically significant.Results:Out of 70 cases which were diagnosed as NAFLD on ultrasonography,gradeⅠNAFLD cases were 47.15%,gradeⅡwere 42.85%and gradeⅢwere 10%.The mean age of the patients was49.14 years.Male to female ratio was 3:4.Serum triglycerides,total cholesterol,LDL and VLDL levels were raised in 67.14%,45.71%34.28%,25.71%of cases respectively.Low serum HDL levels were seen in 62.85%of patients.On statistical analysis we found increasing grades of NAFLD were significantly associated with increasing values of total cholesterol(P value-0.001),LDL(P value-0.000)and VLDL(P value-0.003)and decreasing HDL(P value-0.000).Conclusion:Most of the patients of NAFLD in India is asymptomatic,non-diabetic and non-hypertensive.Though liver biopsy is the gold standard melhod for diagnosis of NAFLD,Ultrasonography which is non-invasive,simple tool,can be used for the early detection of NAFLD in asymptomatic patients. | Dhumal Uttareshvar Mahaling Madole Mahesh Basavaraj Aher Jagdish Bika | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，11： | 3 |
| 4 | Mahanine synergistically enhances cytotoxicity of 5-fluorouracil through ROS-mediated activation of PTEN and p53/p73 in colon carcinoma显示文摘 | Ranjita Das Kaushik Bhattacharya Sayantani Sarkar Suman Kumar Samanta Bikas C. Pal Chitra Mandal | 2014 | Apoptosis2014，，： | 2 |
| 5 | Advantages of Maize-Legume Intercropping Systems显示文摘 | Shyamal Kheroar Bikas Chandra Patra | 2013 | Journal of Agricultural Science and Technology(B)2013，3，10： | 2 |
| 6 | Epidemiology of human Brucellosis in a rural area of north - western peloponnes in Greece 显示文摘 | Bikas C | 2003 | European J Epidemiology2003，18，3： | 1 |
| 7 | Reduchon of Chloride Ion Interferencl in Chenineal Oxygen Demand (COD) Determinations Using Bismnth-based Adsorbents显示文摘 | BIKAS V STEVE W W SHELLEY J C | 1997 | Analytica Chimica Acta1997，357，12： | 1 |
| 8 | Apolipoprotein B-to-A1 ratio as a predictor of acute ischemic nonembolic stroke in elderly subjects 显示文摘 | Kostapanos MS Christogiannis LG Bika E | 2010 | J Stroke Cerebrovasc Dis2010，19，6： | 1 |
| 9 | Kinetic Modelling of n-decane Combustion and Autoignition显示文摘 | Bikas G Peters N | | 0，，： | 1 |
| 10 | The effect of south wall' s outdoor absorption coefficient on time lag,decrement factor and temperature variations显示文摘 | Kontoleon K J Bikas D K | 2007 | Energy and Buildings2007，39，9： | 1 |
| 11 | Reduction of Chloride Ion in Chemical Oxygen Demand Determinations Using Bismuth- based Adsorbents 显示文摘 | Vaidya Bikas Watson Steve W | 1997 | Anal Chem Acta1997，357，12： | 1 |
| 12 | Engine knock and combustion characteristics of a spark ignition engine op?erating with varying hydrogen and carbon monoxide pro?portions 显示文摘 | Bika AS Franklin L Kittelson D B | 2011 | International Journal of Hydrogen Energy2011，36，8： | 1 |
| 13 | The effect of south wall's outdoor absorption coefficient on time lag, decrement factor and temperature variations 显示文摘 | KONTOLEON K J BIKAS D K | 2007 | Energy Buildings2007，39，： | 1 |
| 14 | Effect of ferulic acid from Hibiscus mutabilis on filarial parasite Setaria cervi : Molecular and biochemical approaches显示文摘 | Prasanta Saini Prajna Gayen Ananya Nayak Deepak Kumar Niladri Mukherjee Bikas C. Pal Santi P. Sinha Babu | 2012 | Parasitology International2012，，4： | 1 |
| 15 | New triterpenoid pcntasaccharides from Androsace saxifragifolia显示文摘 | Shashi BM | 1987 | J Chem Soc Perkin Trans I Org Chem1987，，： | 1 |
| 16 | Sul- fur-induced dynamic embrittlement in a low-alloy steel显示文摘 | BIKA D PFAENDTNER J A MENYHARD M | 1995 | Acta Materialia1995，43，5： | 1 |
| 17 | Quasi-static intergranular cracking in a Cu/1bSn alloy; an analog of stress relief cracking of steels显示文摘 | Barrera E V Menyhard M Bika D Rothman B McMahon C J | 1992 | Scripta Metallurgica et Materialia1992，27，2： | 1 |
| 18 | Kinetic modelling of n-decane combustion and autognition: Modelling combustion of n-decane显示文摘 | Bikas G Peters N | 2001 | Ccombition and Flame2001，126，12： | 1 |
| 19 | Association be- tween omega-3 fatty acid supplementation and risk of major cardiovascular disease events: a systematic re- view and meta-analysis 显示文摘 | Rizos EC Ntzani EE Bika E | 2012 | JAMA2012，308，10： | 1 |
| 20 | Apolipoprotein B-to-A1ratio asapredictor of acute is chemicnonembolic stroke in elderly subjects显示文摘 | Kostapanos MS ChristogiannisLG BikaE | | 0，，06： | 1 |
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