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51.
Dhiman Gaurav Soni Mukesh Pandey Hari Mohan Slowik Adam Kaur Harsimran 《Engineering with Computers》2021,37(4):3017-3035
Engineering with Computers - A novel hybrid many-objective evolutionary algorithm called Reference Vector Guided Evolutionary Algorithm based on hypervolume indicator (H-RVEA) is proposed in this... 相似文献
52.
Sarma Rajkumar Bhargava Cherry Jain Shruti Kamboj Vikram Kumar 《Neural computing & applications》2021,33(14):8893-8922
Neural Computing and Applications - Recently established Harris Hawks optimization (HHO) has natural behaviour for finding an optimum solution in global search space without getting trapped in... 相似文献
53.
54.
Sidharth Kumar Sethi Rupesh Raina Shyam Bihari Bansal Anvitha Soundararajan Maninder Dhaliwal Veena Raghunathan Meenal Kalra Kritika Soni Samit Kumar Mahato Ananya Vadhera Dinesh Kumar Yadav Timothy Bunchman 《Hemodialysis international. International Symposium on Home Hemodialysis》2023,27(3):308-317
55.
A Combinatorial Approach for Assessing the Magnetic Properties of High Entropy Alloys: Role of Cr in AlCoxCr1–xFeNi 下载免费PDF全文
56.
Chirag Nagda Narendra Prabhudas Chotai Upendra Patel Sandip Patel Tejal Soni Prateek Patel 《Drug development and industrial pharmacy》2013,39(10):1155-1166
Objective: Microencapsulation of the anti-inflammatory drug aceclofenac (ACE) was investigated as a means of controlling drug release and minimizing or eliminating local side effects. Method: Microspheres were prepared by a spray-drying technique using solutions of ACE and three polymers, namely, carbopol, chitosan, and polycarbophil, in different weight ratios. Results: The spray-dried mucoadhesive microspheres were characterized in terms of shape (scanning electron microscope), size (6.60–8.40 μm), production yield (34.10–55.62%), and encapsulation efficiency (58.14–90.57%). In vitro release studies were performed in phosphate buffer (pH 6.8) up to 10 hours. The spray-drying process of solutions of ACE with polymeric blends can give prolonged drug release. The in vitro release data were well fit into Higuchi and Korsmeyer–Peppas model and followed Fickian diffusion mechanism. In vivo data showed that the administration of ACE in polymeric microspheres prevented the gastric side effects. Conclusion: The formulations here described can be proposed for the oral administration of nonsteroidal anti-inflammatory drugs with minimal side effects on gastric mucosa. 相似文献
57.
Deepika Agrawal Muhammad Huzaif Wasim Qureshi Pooja Pincha Prateet Srivastava Sourabh Agarwal Vikram Tiwari Sudhakar Pandey 《International Journal of Communication Systems》2020,33(8)
A wireless sensor network (WSN) is a prominent technology that could assist in the fourth industrial revolution. Sensor nodes present in the WSNs are functioned by a battery. It is impossible to recharge or replace the battery, hence energy is the most important resource of WSNs. Many techniques have been devised and used over the years to conserve this scarce resource of WSNs. Clustering has turned out to be one of the most efficient methods for this purpose. This paper intends to propose an efficient technique for election of cluster heads in WSNs to increase the network lifespan. For the achievement of this task, grey wolf optimizer (GWO) has been employed. In this paper, the general GWO has been modified to cater to the specific purpose of cluster head selection in WSNs. The objective function for the proposed formulation considers average intra‐cluster distance, sink distance, residual energy, and CH balancing factor. The simulations are carried out in diverse conditions. On comparison of the proposed protocol, ie, GWO‐C protocol with some well‐known clustering protocols, the obtained results prove that the proposed protocol outperforms with respect to the consumption of the energy, throughput, and the lifespan of the network. The proposed protocol forms energy‐efficient and scalable clusters. 相似文献
58.
C V Tomy R Nagarajan S K Malik Ram Prasad N C Soni Kalyan Adhikary 《Bulletin of Materials Science》1991,14(3):691-695
151Eu Mössbauer studies have been performed on the compounds EuBa2(Cu1?x Zn x )3O7?y withx=0·0, 0·025, 0·05, 0·075 and 0·1. The parent compound, EuBa2Cu3O7?y is superconducting with a transition temperature (T c ) of 88 K.T c is depressed as Zn is substituted for Cu in this system and the compounds withx>0·05 do not show superconductivity down to 12 K.151Eu Mössbauer studies at 295 K show a single Mössbauer line in all the compounds (whether superconducting or not) with isomer shift value typical of Eu3 + ion. Further, the isomer shift values are nearly independent ofx and the temperatures down to 10 K. These observations imply that the Cu-O network responsible for superconductivity is very weakly coupled to the Eu sublattice. 相似文献
59.
P K Mishra Shailendra Kumar G Ravikumar P Chaddah B A Dasannacharya Ram Prasad N C Soni 《Bulletin of Materials Science》1991,14(4):899-901
HighT
c
phase (T
c
∼ 110 K) has been obtained in Bi-Sr-Ca-Cu-O system by partially substituting Bi by Pb. Magnetic hysteresis has been measured
as a function of temperature. Critical current densities have been measured at 77 K both by transport and a.c. magnetization
method in bulk samples for various concentrations of Pb. The results show that substitution of 15 at % Pb for Bi is most preferable
for higher critical current density. 相似文献
60.
Stability of a fracture toughness testing geometry is important to determine the crack trajectory and R-curve behavior of the specimen. Few configurations provide for inherent geometric stability, especially when the specimen being tested is brittle. We propose a new geometrical construction called the single edge notched clamped bend specimen (SENCB), a modified form of three point bending, yielding stable cracking under load control. It is shown to be particularly suitable for small-scale structures which cannot be made free-standing, (e.g., thin films, coatings). The SENCB is elastically clamped at the two ends to its parent material. A notch is inserted at the bottom center and loaded in bending, to fracture. Numerical simulations are carried out through extended finite element method to derive the geometrical factor f(a/W) and \(\hbox {K}_{\mathrm{I}}\) for different beam dimensions. Experimental corroborations of the FEM results are carried out on both micro-scale and macro-scale brittle specimens. A plot of \(\hbox {K}_{\mathrm{I}}\) vs a/W, is shown to rise initially and fall off, beyond a critical a/W ratio. The difference between conventional SENB and SENCB is highlighted in terms of \(\hbox {K}_{\mathrm{I}}\) and FEM simulated stress contours across the beam cross-section. The \(\hbox {K}_{\mathrm{IC}}\) ’s of bulk NiAl and Si determined experimentally are shown to match closely with literature values. Crack stability and R-curve effect is demonstrated in a PtNiAl bond coat sample and compared with predicted crack trajectories from the simulations. The stability of SENCB is shown for a critical range of a/W ratios, proving that it can be used to get controlled crack growth even in brittle samples under load control. 相似文献