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排序方式: 共有2140条查询结果,搜索用时 15 毫秒
71.
Richard S.P. Huang Xinyan Li James Haberberger Ethan Sokol Eric Severson Daniel L. Duncan Amanda Hemmerich Claire Edgerly Erik Williams Julia Elvin Jo-Anne Vergilio Jonathan Keith Killian Douglas Lin Matthew Hiemenz Jinpeng Xiao Deborah McEwan Oliver Holmes Natalie Danziger Rachel Erlich Garrett Frampton Michael B. Cohen Kimberly McGregor Prasanth Reddy Dawn Cardeiro Rachel Anhorn Jeffrey Venstrom Brian Alexander Charlotte Brown Lajos Pusztai Jeffrey S. Ross Shakti H. Ramkissoon 《The oncologist》2020,25(11):943-953
72.
Smita Padhan Sudhansu Ranjan Das Anshuman Das Mohammad S. Alsoufi Ahmed Mohamed Mahmoud Ibrahim Ammar Elsheikh 《Materials》2022,15(7)
The machining of nickel-based super alloys is challenging, owing to the generation of high cutting temperatures, as well as difficulty in maintaining dimensional accuracy and minimizing surface roughness, which compels the use of cutting fluids for reducing these issues due to efficient cooling/lubrication strategies. The present work investigates the comparative performance of four cooling/lubrication techniques: dry cutting, wet, minimum quantity lubricant (MQL) and compressed-air modes in turning Nitronic 60 steel using a new-generation SiAlON ceramic inserts. Several machinability parameters were analyzed for performance evaluation. For this purpose, 16 cycles of turning trials were performed based on Taguchi’s L16 orthogonal array experimental design by varying cutting conditions and lubrication modes. MQL exhibits beneficial effects as compared to the other lubrication conditions concerning low cutting force, improved surface finish, decreased cutting temperature, longer tool life, and lower white layer thickness on machined surface. Burr formation on the saw-tooth chip surface, as well as friction, greatly influenced the tool flank wear due to improper cooling and poor lubrication approach in dry, wet, and compressed-air-cooled machining environments in comparison to MQL-machining. From an economical perspective, the tool life in MQL machining improved by 11%, 72%, and 138% in the comparison with flooded, compressed-air, and dry conditions, respectively. The results of the study demonstrate that using the MQL system can help with heat extraction capability, and provide some promising outcomes. 相似文献
73.
74.
Antibodies to diethylcarbamazine cross-react with microfilariae of Wuchereria bancrofti 总被引:3,自引:0,他引:3
Antibodies directed against the microfilarial sheath have been instrumental in the immune elimination of circulating microfilariae in human lymphatic filariasis. We report here that antibodies to diethylcarbamazine (DEC, the most commonly used anti-filarial drug) cross-react with the sheath of Wuchereria bancrofti microfilariae. Antibodies with reactivity to DEC were raised in rabbits by immunization with a conjugate of methylpiperazine carboxylic acid (MPCA, an acid hydrolysis product of DEC) coupled to bovine serum albumin. The reactivity of these antibodies with microfilarial sheath of W. bancrofti was demonstrated by indirect immunofluorescent assay and indirect immunoperoxidase assay. This reactivity could be effectively inhibited by pre-incubation of the antisera with different haptens such as DEC, MPCA or piperazine citrate. 相似文献
75.
Merin Jose Muruga Lokesh Rahul Vaippully Dillip K. Satapathy Basudev Roy 《RSC advances》2022,12(21):12988
Mechanical properties of particle laden interfaces is crucial for various applications. For water droplets containing soft microgel particles, passive microrheology studies have revealed that the dynamically varying surface area of the evaporating drop results in a viscous to viscoelastic transition along the plane of the interface. However, the behaviour of the medium orthogonal to the interface has been elusive to study using passive microrheology techniques. In this work, we employ optical tweezers and birefringent probe particles to extract the direction-resolved viscoelastic properties of the particle–laden interface. By using special types of birefringent tracer particles, we detect not only the in-plane translational mode but also the out-of-plane translational (perpendicular to the interface) and rotational modes. We first compare different passive methods of probing the viscoelasticity of the microgel laden interface of sessile drop and then study the modes perpendicular to the interface and the out-of-plane rotational mode using optical tweezers based passive microrheology. The viscoelasticity of the interface using two different methods, i.e., multiple-particle tracking passive microrheology using video microscopy and by trapping birefringent tracer particles in optical tweezers, relying on different models are studied and found to exhibit comparable trends. Interestingly, the mode orthogonal to the interface and the rotational mode also show the viscous to viscoelastic transition as the droplet evaporates, but with lesser viscoelasticity during the same evaporation time than the in-plane mode.Mechanical properties of particle laden interfaces is crucial for various applications. 相似文献
76.
77.
Divjyot Kaur Piyush Ranjan Archana Kumari Anita Malhotra Gauri Shankar Kaloiya Ved Prakash Meena Prayas Sethi Naval K. Vikram 《Journal of obstetrics and gynaecology of India》2022,72(2):168
Background and AimsThe pregnancy weight is usually retained in the form of abdominal fat during the postpartum period. The willingness to lose weight is influenced by knowledge, attitude, beliefs and practices. This study aims to comprehend the awareness, beliefs and perspectives of postpartum women regarding their perceived factors, barriers and facilitators associated with post-pregnancy weight status.MethodsOverweight and obese postpartum women aged between 20 and 40 years and had delivered an infant in the last 2 years were recruited via convenience and purposive sampling techniques. The final sample comprised 27 participants with a mean age of 29.96 ± 4.50 years. Four focus group discussions and eight in-depth interviews carried out were audio-recorded and transcribed verbatim. Codes, sub-themes and themes were generated using Atlas.ti 9 software.ResultsMajor themes identified were perceived factors causing postpartum weight retention/weight gain including social and cultural beliefs related to diet and exercise specifically associated with this period, perceived motivators and deterrents of weight loss including eagerness to lose weight and perceived facilitators and barriers to weight loss including intrinsic and extrinsic factors such as time, energy, evidence-based knowledge about diet and physical activity, family support and obligation to family’s advice.ConclusionThe unique challenges and barriers associated with postpartum weight loss efforts should be taken into consideration by healthcare professionals and public health policy-makers to design strategies specific to postpartum women.Supplementary InformationThe online version contains supplementary material available at 10.1007/s13224-022-01644-9. 相似文献
78.
79.
Lanthanide phosphate nanorods as inorganic fluorescent labels in cell biology research 总被引:1,自引:0,他引:1
Patra CR Bhattacharya R Patra S Basu S Mukherjee P Mukhopadhyay D 《Clinical chemistry》2007,53(11):2029-2031