Surprising coercivity increment of sintered Ce–Fe–B magnets: Ce partly substituted by La

2021 ◽  
pp. 2150020
Author(s):  
Lele Liao ◽  
Wei Zhao ◽  
Ying Liu ◽  
Jun Li

Aiming at refining the unideal microstructure and magnetic performance of sintered Ce–Fe–B magnets, La was introduced into the alloy. The role of La addition on the microstructure and magnetic properties revolution of Ce–Fe–B magnet was investigated in this study. The results suggested that La substitution could obstacle the phase structure deterioration during sintering process and maintained high 2:14:1 phase proportion. Meanwhile, uniform grain size and continuous RE-rich grain boundary phase appeared with La addition, which could be attributed to the segregation behaviors of La element and enhanced oxidation resistance with more 2:14:1 phase. The coercivity showed noteworthy increase from 2.93 kOe to 4.78 kOe under the synergetic effect of maintained 2:14:1 phase proportion, uniform RE2Fe[Formula: see text]B grain and even RE-rich phase distribution. This work indicated that La could act as a useful additive to obtain the cost-effective magnetic materials with moderate performance.

2014 ◽  
Vol 2 ◽  
pp. 319-322
Author(s):  
Vitaliy Moskalenko ◽  
Iryna Nizhenkovskaya ◽  
Elena Welchinska

Countries worldwide are facing similar healthcare problems.  Medicine develops new methods for treatment, and pharmaceutical companies invent more efficient products.  These technological advances are, however, expensive, and put a double-strain on public healthcare spending: the cost of sophisticated treatment keeps growing, and improved healthcare allows patients to live longer, thus requiring more treatment.  Budgetary constraints, however, require government to restrict expenditure.  These challenges have to be answered in the context of existing public healthcare systems, which, are well established and complex.  Healthcare reforms will necessarily reflect these characteristics, as well as the relative political weight of the partners.  Such reforms will most likely affect all partners involved in the provision and healthcare management, including social security institutions (state agencies, sickness funds, etc.), doctors, and other health professionals—pharmacists.  Currently one of most important strategic tasks of modernization of the system of higher education in Ukraine is the high quality education provided to pharmacists in order to satisfy the worldwide needs.Whatever specific reform will be adopted, the main goals are to make the system more efficient and, thus, more cost effective; and, because the first aspect will not sufficiently decrease the expenditure, it is necessary to limit the scope of public health care while maintaining a balance of benefits.  


2013 ◽  
Vol 1 (2) ◽  
pp. 54-57
Author(s):  
TM Ibrahim

INTRODUCTION: The role of blood cultures (BCs) in the management of community acquired pneumonia (CAP) has generated a lot of controversy among clinicians in recent times. The main objectives of this audit were to determine if BC results impact the choice of antibiotics, and hospital outcomes in CAP. MATERIALS AND METHODS: This was a retrospective study of adults with CAP treated in the ED of Goulbourn Valley Base Hospital, Shepparton in Australia from November 2010 to November 2011. RESULTS: Two hundred and twenty five patients were treated for CAP during the period in review with a mean age of 67.09±19.82 yrs and male:female of 1.5:1. 277 sets of BCs were performed and only 2.2% of the cases had true positive BCs .87% of the total cost of performing these BCs was spent on those with negative cultres.15.1% of the cases had their antibiotics changed during their hospitalization but the results of the BCs had no impact on the antibiotic change. Even though not statistically significant true positive BCs was associated with prolong length of hospital stay (7.6 ± 9.39 days vs 4.89 ± 3.24 days, p=0.44), and duration of IV antibiotic use (4.8±3.27 days vs 3.58±1.97 days, p=0.39). But the case fatality rate was much lower in those with positive BCs, (0 vs 5.7%,p< 0.05). Tachycardia (>120.4±12.46 bpm), neutrophilia (15.0± 8.16 /ul), and high CRP (326.4±146.32 ug/l) were predictors of true positive BCs. CONCLUSIONS: Routine BCs in the management of CAP is not cost-effective with large portion of the cost spent on cultures that returned negative result .Therefore it use show be limited to those likely to return positive cultures. DOI: http://dx.doi.org/10.3126/ijim.v1i2.7408 Int J Infect Microbiol 2012;1(1):54-57


2004 ◽  
Vol 118 (3) ◽  
pp. 189-192 ◽  
Author(s):  
S. Uppal ◽  
J. Jose ◽  
P. Banks ◽  
E. Mackay ◽  
A. P. Coatesworth

The need to reduce costs while providing a first-class service has led to the expansion in the role of nurses in recent years. We present results of a comparison of the cost-effectiveness of conventional and nurse-led out-patient ear clinics. Our results indicate that cost-effective health care is a distinct competitive advantage for nurses taking up some roles conventionally performed by doctors. The difference in mean cost of out-patient visit per patient between the two groups is £75.28. This is equivalent to a reduction in cost to the hospital of more than £47000 for the 626 patients seen in a nurse-led ear clinic in a year. The nurse-led service is thus more cost-effective and presents an opportunity by freeing up otolaryngologists’ time to see more complex patients and has the potential for reducing out-patient access time in the NHS.


Author(s):  
Jens G. Acker ◽  
C. Becker-Carus ◽  
Antje Büttner-Teleaga ◽  
Werner Cassel ◽  
Heidi Danker-Hopfe ◽  
...  

AbstractActigraphy has been used for more than 60 years to objectively measure sleep–wake rhythms. Improved modern devices are increasingly employed to diagnose sleep medicine disorders in the clinical setting. Although less accurate than polysomnography, the chief advantage of actigraphs lies in the cost-effective collection of objective data over prolonged periods of time under everyday conditions. Since the cost of wrist actigraphy is not currently reimbursed, this method has not enjoyed wide acceptance to date. The present article provides an overview of the main clinical applications of actigraphy, including the recommendations of specialist societies.


2019 ◽  
Vol 6 (8) ◽  
pp. 2895
Author(s):  
Arun Y. Mane ◽  
Narendra G. Naik

Background: The filiariasis is the most common cause of secondary lymphedema of the lower limb. Due to poor awareness of this disease in the people of the lower socioeconomic strata, the patient understands the importance of conservative modality of therapy very late. The cutaneous changes and its complications develop in patient due to unawareness about the nature of noncurable progressive disease. The self-negligence to their own limb also contributes to increase in the morbidity of the disease. The article discusses about cost effective role of Eschmarch tourniquet as a decompressive therapy. The disease causes socioeconomic impairments, stigmatization due to elephantiasis and job insecurity due to cosmetic and functional disability.Methods: This was a retrospective study done in 28 cases of filarial lymphedema. All patients received limb elevation and decompressive therapy by Eschmarch tourniquet.Results: Out of 28 cases, 14 cases in study group of filarial lymphedema with pitting edema (71.42%) and non-pitting edema feet with minimal cutaneous changes (28.57%) showed significant reduction in size of limb girth and satisfactory fluctuating limb girth during the follow up period in OPD respectively, by adequate limb elevation, elastic stockinet and decompressive therapy by Eschmarch tourniquet as compared to the remaining 14 patients of control who received only limb elevation. The better follow up results are noticed by proper guidance to the patient about the disease and its conservative modality of treatment.Conclusions: It is a challenge for the treating consultant to create early awareness about the nature of the filarial disease and early guidance about the conservative treatment which helps to restrict the rapid growth of limb size in filiariatic lymphedema. The eschmarch tourniquet is one of the cost effective decompressive therapy. 


SIMULATION ◽  
1971 ◽  
Vol 16 (3) ◽  
pp. 112-115 ◽  
Author(s):  
Frank W. Paul

This paper discusses the present atzd futtsre of hybrid computation: Has it reached its zenith, or will it continue to develop as a powerful but specialized technique? The minicomputer has made current hybrid systems practical by providing a low-cost digital component. Unless the cost of the analog computer is reduced, the increasing power and decreasing cost of the minicomputer may severely limit future hybrid computer usage by providing an economic all-digital alternative. However, problems with alternative solution techniques indicate that for some important applications the hybrid computer will be the most cost- effective approach.


Enhanced data security and privacy are one of the major concerns in today’s digital society. The role of Primes towards the enhancements of data security and privacy is undeniable. Though several prime generations were presented, yet a cost effective and an easy to implement generation of Prime sequence should always have an advantage targeting real life applications. Hence, prime sequence generation using Cellular Automata (CA) is presented in this article as CA based modelling are easy to implement at the cost of flip-flops. The main contribution of this research is to explore the natural sequence of primes (i.e., primes A000040) with a special class of group CA, at fixed boundary environment; which may potentially be used as a Prime source towards the enhancements of data security and privacy. Experimental results confirm that the first 50 members of A000040 series may be explored at automata size 8 only. Detailed investigations towards the CA configuration and its dynamics in view of the generation of prime A000040 sequence, are also presented in this article.


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