http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Kumar Shashi Kant (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Investigating the use of wollastonite micro fiber in yielding SCC
Sharma, Shashi Kant,Ransinchung, G.D.,Kumar, Praveen Techno-Press 2018 Advances in concrete construction Vol.6 No.2
Self compacting concrete (SCC) has good flowability, passability and segregation resistance because of voluminous cementitious material & high coarse aggregate to fine aggregate ratio, and high free water availability. But these factors make it highly susceptible to shrinkage. Fibers are known to reduce shrinkage in concrete mixes. Until now for conserving cement, only pozzolanic materials are admixed in concrete to yield a SCC. Hence, this study compares the use of wollastonite micro fiber (WMF), a cheap pozzolanic easily processed raw mineral fiber, and flyash in yielding economical SCC for rigid pavement. Microsilica was used as a complimentary material with both admixtures. Since WMF has large surface area ($827m^2/kg$), is acicular in nature; therefore its use in yielding SCC was dubious. Binary and ternary mixes were constituted for WMF and flyash, respectively. Paste mixes were tested for compatibility with superplasticizer and trials were performed on a normal concrete mix of flexural strength 4.5 MPa to yield SCC. Flexural strength test and restrained shrinkage test were performed on those mixes, which qualified self compacting criteria. Results revealed that WMF admixed pastes have high water demand, and comparable setting times to flyash mixes. Workability tests showed that 20% WMF with microsilica (5-7.5%) is efficient enough in achieving SCC and higher flexural strength than normal concrete at 90 days. Also, stress rate due to shrinkage was lesser and time duration for final strain was higher in WMF admixed SCC which encourages its use in yielding a SCC than pozzolanic materials.
-
Sharma, Shashi Kant,Kumar, K.V. Praveen,Akbar, M. Abdul,Rambabu, Dadi Techno-Press 2022 Advances in materials research Vol.11 No.1
In the construction industry, thin-walled frame elements with very slender open cross-sections and low torsional stiffness are often subjected to a complex loading condition where axial, bending, shear and torsional stresses are present simultaneously. Hence, these often fail in instability even before the yield capacity is reached. One of the most common instability conditions associated with thin-walled structures is Lateral Torsional Buckling (LTB). In this study, a first order Generalized Beam Theory (GBT) formulation and numerical analysis of cold-formed steel lipped channel beams (C80×40×10×1, C90×40×10×1, C100×40×10×1, C80×40×10×1.6, C90×40×10×1.6 and C100×40×10×1.6) subjected to uniform moment is carried out to predict pure Lateral Torsional Buckling (LTB). These results are compared with the Finite Element Analysis of the beams modelled with shell elements using ABAQUS and analytical results based on Euler's buckling formula. The mode wise deformed shape and modal participation factors are obtained for comparison of the responses along with the effect of varying the length of the beam from 2.5 m to 10 m. The deformed shapes of the beam for different modes and GBTUL plots are analyzed for comparative conclusions.
-
An Overview on Taxol Production Technology and Its Applications as Anticancer Agent
Aparajita Sharma,BHATIA SHASHI KANT,Aditya Banyal,Ishita Chanana,Anil Kumar,Duni Chand,Saurabh Kulshrestha,Pradeep Kumar 한국생물공학회 2022 Biotechnology and Bioprocess Engineering Vol.27 No.5
Cancer is undeniably a major health risk factor that is growing rapidly globally despite promising medicinal and pharmaceutical development. Treatment of cancer remains an issue due to financial constrains in most of the developing countries. The majority of todayʼs medicines are derived from medicinal plants, as we all know. Taxol is such a plant-based chemotherapeutic agent which has blown the anticancer research field. The extinction of Taxus spp., which is the main natural source of taxol synthesis, required the development of novel alternative approaches in the oncology field. Many novel discoveries have been in trend in which endophytic microbial fermentation process is more focused as this area is cost-efficacious, less time consumable, and eco-friendly. Endophytes are one of another alternative approach for the taxol production, preserving the natural resources of Taxus plants worldwide. Endophytic microorganisms can be exploited in the taxol industry because most of the endophytic microbes have yet to be explored for the eco-friendly and economical production of this wonder drug. The aim of this review article is to cover everything from the discovery of taxol through the development of new natural resource-based biotechnology techniques. Furthermore, the current review has emphasised the use of taxol in fields other than anti-cancer properties, as well as pointing to some future opportunities.
-
Design of Low Power and Secure Implementation of SBox and Inverse-SBox for AES
Divya Sharma,Ankur Bhardwaj,Harshita Prasad,Jyoti Kandpal,Abhay Saxena,Kumar Shashi Kant,Gaurav Verma 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.7
In the cutting edge world, data security has turned into an essential issue furthermore the innovation is going to increment quickly. In this paper, the symmetric key standard for encryption and decoding is propelled Encryption standard (AES). The key stride in the AES is the "S-Box". S Box is an imperative segment for symmetric key calculations. An S-box takes some number of information bits "p" and interprets them in yield bits 'q', where "p" is not as a matter of course equivalent to 'q'. In AES Encryption calculation Sub Bytes change uses S-Box and Inverse S-Box uses Inverse of S-Box. The Sub Bytes substitution is a nonlinear byte substitution that uses substitution table (i.e., S-Box) takes the multiplicative reverse (GF (28)) and infers a relative change to do the Sub Bytes change. Though, converse Sub Bytes Substitution additionally uses gaze upward table (i.e., Reverse S-Box) takes an opposite relative change and after that suggests multiplicative backwards of Galois Field (GF (28)). In this printed material, we investigated substitution table/reverse substitution table, multiplicative opposite and relative change and its converse (i.e. reverse relative change) science in Galois field. A standout amongst the most basic issues in AES is the force utilization. Here, we predominantly centered around the force utilization and in addition security of S-box which is the most power devouring square in the AES. We have executed and reproduced S-Box and Inverse S-Box Lookup table and acquired another improved scrambled Lookup table for more upgraded mystery by utilizing Xilinx Spartan-3 assessment board. The Simulation and execution instruments utilized are Xilinx ISE 14.1i and ModelSim 6.0.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
