M/M/R Machine Interference Model with Balking, Reneging, Spares and Two Modes of Failure

Jain, Madhu; Sharma, Gaurav; Singh, Mahavir

doi:10.1007/bf03399197

Cited by 19 publications

(18 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…al. [12][13][14] recently, reported the activity of Schiff base complexes with silicon against the pathogenic fungi and bacteria. The insecticidal and nematicidal activities were also reported for some hypercoordinate silicon complexes with sulphonamide imine 15 as ligand.…”

Section: Introductionmentioning

confidence: 99%

Novel hexacoordinate organosilicon(IV) complexes of diethylenetriamine Schiff base with SiO2N3 skeleton

Puri¹,

Singh²,

Kaur³

et al. 2009

Arkivoc

View full text Add to dashboard Cite

Some novel hexacoordinate silicon(IV) complexes with a SiO 2 N 3 skeleton were synthesized by using potentially pentadentate ligand N, N'-diethylenetriamine-bis(salicylideneimine). The aforesaid ligand, obtained by the condensation of diethylenetriamine and salicylaldehyde, contains two N of azomethine C=N group, two O of phenolic -OH group and one N of -NHgroup capable of coordination. The ligand reacts with RSiCl 3 (R = CH 3 , C 6 H 5 , C 2 H 5 , CH=CH 2 ) in the presence of triethylamine to yield hexacoordinate silicon complexes 1-4. The resulting complexes were characterized by IR spectroscopy, 1 H, 13 C, 29 Si NMR spectroscopy and elemental analysis. The geometry and hexacoordination was confirmed by comparing the experimental results with computational studies by using GAUSSIAN 03 series of programs. The IR frequencies and 29 Si NMR shifts calculated for isomer B with Density Functional Theory (B3LYP-3-21+G* basis set) correlate with experimental values and suggested the geometry of synthesized complexes. Total energies, dipole moment and bond lengths were calculated from the geometries optimized with semi-empirical methods.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel hexacoordinate organosilicon(IV) complexes of diethylenetriamine Schiff base with SiO2N3 skeleton

Puri¹,

Singh²,

Kaur³

et al. 2009

Arkivoc

View full text Add to dashboard Cite

show abstract

“…The enhanced activity of the germanium complexes may be ascribed to the increased lipophilic nature of these complexes arising due to the chelation. 15 The activity increased as the concentration was increased. Further, the results of bioactivity were compared with the conventional fungicide Bavistin and the conventional bactericide Streptomycin, taken as standards in either case.…”

Section: Biological Aspectsmentioning

confidence: 97%

Sulfur-Bonded Organogermanium (IV) Complexes of Biopotent Bases and Their Antiandrogen and Biocidal Properties

Swami

Singh

2008

Phosphorus, Sulfur, and Silicon and the Related Elements

View full text Add to dashboard Cite

In the search for the better fungicides, bactericides and antiandrogen agents, studies have been carried out to assess the growth-inhibiting potential of the newly synthesized organogermanium(IV) complexes against various pathogenic fungal and bacterial strains as well as on reproductive organs of the male albino rats. The results of these studies have been compared with the standard fungicide Bavistin and bactericide Streptomycin. The studies demonstrate that the ligands and their trimethylgermanium(IV) complexes have comparable antimicrobial activity. The results also indicated that the weights of the body and vital organs were not affected after the treatment suggesting that the complexes have no side effect or toxicological effect and maintained normal physiology of the animals throughout the experiment. It has also been revealed that the organogermanium(IV) complexes showed more antifertility effect than the bases. These complexes were synthesized by the reactions of trimethylgermanium(IV) chloride with biologically potent N ∩ SH donor bases and characterized by elemental analyses, conductance measurements, molecular weight determinations and IR, 1 H NMR, 13 C NMR and electronic spectral studies.

show abstract

“…To deal with more realistic scenarios of machining system, the behavior of the customers and care taker should be taken into account for the performance analysis of such systems. Machine repair problems by incorporating the concepts of balking and reneging have been investigated by many researchers (Shawky 1997(Shawky , 2000Wang and Ke 2003;Jain et al 2003;Sharma et al 2004). Wang et al (2011) performed cost benefit analysis of a machining system with warm standby components and variable server by incorporating the concept of balking.…”

Section: Introductionmentioning

confidence: 99%

(m, M) Machining system with two unreliable servers, mixed spares and common-cause failure

Jain

Mittal²,

Kumari

2015

J Ind Eng Int

View full text Add to dashboard Cite

This paper deals with multi-component machine repair model having provision of warm standby units and repair facility consisting of two heterogeneous servers (primary and secondary) to provide repair to the failed units. The failure of operating and standby units may occur individually or due to some common cause. The primary server may fail partially following full failure whereas secondary server faces complete failure only. The life times of servers and operating/standby units and their repair times follow exponential distribution. The successive over relaxation (SOR) technique has been used to obtain the steady state queue size distribution of the number of failed units in the system. To explore the system characteristics, various performance indices such as expected number of failed units in the queue, throughput, etc. have been obtained. Numerical results have been provided to illustrate the computational tractability of the proposed SOR technique. To examine the effect of system descriptors on the performance indices, the sensitivity analysis is also performed.

show abstract

M/M/R Machine Interference Model with Balking, Reneging, Spares and Two Modes of Failure

Cited by 19 publications

References 11 publications

Novel hexacoordinate organosilicon(IV) complexes of diethylenetriamine Schiff base with SiO2N3 skeleton

Novel hexacoordinate organosilicon(IV) complexes of diethylenetriamine Schiff base with SiO2N3 skeleton

Sulfur-Bonded Organogermanium (IV) Complexes of Biopotent Bases and Their Antiandrogen and Biocidal Properties

(m, M) Machining system with two unreliable servers, mixed spares and common-cause failure

Contact Info

Product

Resources

About