The Effects of Boundary Design on the Efficiency of Large-Scale Hot Water Heat Stores

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
Varghese Panthalookaran ◽  
Wolfgang Heidemann ◽  
Hans Müller-Steinhagen
Keyword(s):  
Large Scale ◽  
Hot Water ◽  
Small Scale ◽  
Insulation Material ◽  
Stored Energy ◽  
Efficient Tool ◽  
External Insulation ◽  
Thermodynamic Quality ◽  
Good Agreement

Boundary design of stratified hot water heat stores is important not only to minimize the thermal losses to the ambient but also to preserve the thermodynamic quality of the stored energy. A new method of characterization, which equivalently accounts for both these concerns, is applied in this paper to investigate into the boundary design of large-scale hot water heat stores. A variety of concepts related to general design of the containments, namely, the effects of the thermal conductivity and thickness of the container wall, are numerically analyzed. The design insights provided by the analysis are in good agreement with the corresponding experimental results for small-scale hot water heat stores found in the literature. Different ways of insulation application, differential application of the external insulation, and insulation of the top walls are further investigated to obtain ideas for the efficient use of the insulation material. The new characterization scheme proves to be an efficient tool to rank the performance of different boundary designs during storing process of large-scale stratified hot water heat stores and to provide valuable design insights.

scholarly journals NILAI-NILAI KEPEMIMPINAN ISLAM DALAM BERKELUARGA SEBAGAI TOLAK UKUR MENDASAR (BASE ON) INTEGRITAS CALON LEGISLATIF

LITIGASI ◽  
2016 ◽  
Vol 15 (1) ◽  
Author(s):  
Tuti Rastuti
Keyword(s):  
Large Scale ◽  
Community Integration ◽  
Small Scale ◽  
The People ◽  
The Family ◽  
High Integrity ◽  
Islamic Leadership ◽  
Family Leadership ◽  
Islamic Values

Prepare leaders with integrity processed fostering of the family. Various methods are used to determine the state 's future leaders, both through the regeneration of the cadre, the appointment or election. Election is a means to process and determine who will lead and hold the mandate of the people they lead. Election is a process, but the nature of the leader determines to be seen from the quality of his personality. Communities are often faced with the dilemma of how good a leader ? Values of the Islamic leadership in the family will answer what and how a leader with high integrity. Therefore, the family is the smallest unit of a miniature community. Integration leader is a leader who has a commitment to his family. The leader of the ummah in a large scale is determined by its leadership in the small-scale leader applying Islamic values in the family.Keywords : Islamic Values; Family; Leadership; LegislativeABSTRAKMempersiapkan pemimpin yang berintegritas diproses pembinaannya dari keluarga. Berbagai cara dilakukan oleh negara untuk menentukan calon pemimpin, baik melalui regenerasi pengkaderan, penunjukan ataupun pemilihan. Pemilu merupakan sarana untuk mengolah dan menentukan siapa yang akan memimpin dan memegang amanah rakyat yang dipimpinnya. Pemilu merupakan proses, namun hakikat menentukan pemimpin harus dilihat dari  kualitas kepribadiannya. Masyarakat sering dihadapkan pada dilema sosok pemimpin bagaimanakah yang baik? Nilai-Nilai kepemimpinan Islam dalam berkeluarga akan menjawab apa dan bagaimana pemimpin yang memiliki integritas tinggi. Sebab, keluarga merupakan miniatur unit terkecil dari suatu komunitas. Pemimpin yang berintegrasi adalah pemimpin yang memiliki komitmen  terhadap keluarganya. Pemimpin umat dalam skala yang besar ditentukan oleh kepemimpinannya dalam skala kecil yaitu pemimpin yang menerapkan nilai-nilai Islam dalam berkeluarga. Kata Kunci: Nilai Islam; Keluarga; Kepemimpinan; Legislatif

scholarly journals An Assessment of Drinking Water Quality in Cauvery Delta Region and Palar Region, Tamil Nadu

2017 ◽  
Vol 3 (12) ◽  
pp. 238
Author(s):  
R. Sophia Porchelvi ◽  
P. Selvavathi
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
River Basin ◽  
Tamil Nadu ◽  
Large Scale ◽  
Anthropogenic Activities ◽  
Small Scale ◽  
Drinking Purposes ◽  
Cauvery Delta

Delta regions of the Cauvery River basin are one of the significant areas of rice production in India. In spite of large-scale utilization of the river basin for irrigation and drinking purposes, the lack of appropriate water management has seemingly deteriorated the water quality due to increasing anthropogenic activities. Vellore is the second most populous district of Tamil Nadu in India where the Palar River flowing towards east for about 295 Km. Vellore is surrounded by many leather tanneries and small scale dying industries and their effluents are discharged into the Palar river causing impact on the quality of the underground water. To assess the extent of deterioration, physicochemical characteristics of surface water were analyzed select regions of Cauvery Delta River basin and Palar region, Tamil Nadu, during March 2016 to May 2016. This study aimed to examine quality of drinking groundwater. The results represented whether the water was suitable or unsuitable for drinking purposes in this area. It was also observed that some areas like Tiruvarur, Needamangalam, Kamalapuram, Arcot, Soraiyur, Ranipet had low quality drinking water. It is suggested to take some necessary measures for supplying desirable water to the people living in these areas.

scholarly journals Pengembangan model manajemen ICT center

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Hakkun Elmunsyah
Keyword(s):  
High Schools ◽  
Research And Development ◽  
Computer Networks ◽  
Large Scale ◽  
Small Scale ◽  
Management Performance ◽  
Development Study ◽  
National Education ◽  
Vocational High Schools

Kemendiknas telah melakukan investasi cukup besar berupa pembangunan Jejaring komputer pendidikan nasional yang disebut Jaringan Pendidikan Nasional (Jardiknas), pada sekolah menengah kejuruan (SMK) di seluruh Indonesia yang dikenal dengan nama ICT center. Penelitian ini bertujuan untuk menemukan model manajemen ICT center sesuai karakteristik SMK sehingga dapat memberikan kontribusi mutu pada SMK tersebut. Penelitian ini merupakan penelitian pengembangan atau Research and Development yang dikembangkan oleh Borg and Gall. Hasil secara keseluruhan penelitian menunjukkan berdasarkan uji coba keefektivan kinerja manajemen pada skala terbatas dan lebih luas menunjukkan bahwa model manajemen ICT center memenuhi kriteria sangat efektif. DEVELOPING A MODEL OF ICT CENTER MANAGEMENTAbstractDeveloping a Model of ICT Center Management. The Ministry of National Education has made considerable investments in building National Education Computer Networks in vocational high schools (VHSs) all over Indonesia, well-known as ICT Centers. This study aims to develop a model of ICT Center management in accordance with the characteristics of VHSs so that it can give contributions to the quality of VHSs. This study was a research and development study using a model by Borg and Gall. The results for all of the study is small-scale and large-scale tryouts on the effectiveness of the management performance show that the model of the ICT center management is very effective.

scholarly journals Upstream to downstream: a multiple-assessment-point approach for targeting non-point-source priority management areas at large watershed scale

2013 ◽  
Vol 10 (11) ◽  
pp. 14535-14555
Author(s):  
L. Chen ◽  
Y. Zhong ◽  
G. Wei ◽  
Z. Shen
Keyword(s):  
Point Source ◽  
Large Scale ◽  
Cost Effective ◽  
Small Scale ◽  
Watershed Scale ◽  
Nps Pollution ◽  
Specific Assessment ◽  
High Level ◽  
Multiple Assessment

Abstract. The identification of priority management areas (PMAs) is essential for the control of non-point source (NPS) pollution, especially for a large-scale watershed. However, previous studies have typically focused on small-scale catchments adjacent to specific assessment points; thus, the interactions between multiple river points remain poorly understood. In this study, a multiple-assessment-point PMA (MAP-PMA) framework was proposed by integrating the upstream sources and the downstream transport aspects of NPS pollution. Based on the results, the integration of the upstream input changes was vital for the final PMAs map, especially for downstream areas. Contrary to conventional wisdom, this research recommended that the NPS pollutants could be best controlled among the upstream high-level PMAs when protecting the water quality of the entire watershed. The MAP-PMA framework provided a more cost-effective tool for the establishment of conservation practices, especially for a large-scale watershed.

scholarly journals 522 - Role of Physical Environment on Quality of Life among Older Adults with Dementia in Long-Term Care Facilities in Canada and Sweden: A Longitudinal Study

2021 ◽  
Vol 33 (S1) ◽  
pp. 70-70
Author(s):  
Sook Young Lee ◽  
Lillian Hung ◽  
Habib Chaudhury
Keyword(s):  
Quality Of Life ◽  
Older Adults ◽  
Longitudinal Study ◽  
Physical Environment ◽  
Large Scale ◽  
Institutional Setting ◽  
Small Scale ◽  
Term Care

Reduction in competence makes older adults with dementia more sensitive to the influence of the physical environment. The aim of the longitudinal study was to examine whether residents with dementia in long-term facilities with variability in physical environmental characteristics in Vancouver (N=11), Canada and Stockholm (N=13), Sweden had a difference in their quality of life (QoL). QoL was assessed using Dementia Care Mapping (DCM) tool three times over one year for the reliability of data. DCM is a technique and observational framework devised to systematically investigate QoL from the perspective of the older adults with dementia. The results of the study demonstrated that the residents with dementia living in a homelike and positive stimulating setting showed a higher level of potential positive engagement, and less agitated and withdrawn behaviors compared to those in the large-scale institutional setting. Residents living in a large-scale institutional setting in Canada showed so far as five times more agitated/distressed behaviors and twice more withdrawal compared to the ones living in a small-scale homelike setting in Sweden. The study supports that the large-scale institutional environment was considerably associated with levels of lower quality of life among the residents with dementia.

scholarly journals Quality control challenges post covid-19 crisis: an integrated IoT and IoP approach

2022 ◽  
Vol 2161 (1) ◽  
pp. 012001
Author(s):  
Harshit Sharma ◽  
G Sumathi
Keyword(s):  
Quality Control ◽  
Six Sigma ◽  
Damage Assessment ◽  
Large Scale ◽  
Smart Manufacturing ◽  
Small Scale ◽  
Industrial Iot ◽  
Customer Trust ◽  
Near Future

Abstract The Covid -19 is arguably the biggest pandemic in history and there are a lot of challenges that must be dealt with. One of the biggest challenges post Covid-19 is to tackle quality control challenges. This research paper discusses some of these challenges and solutions using an integrated internet of things (IoT) and internet of protocols (IoP) based approach and further showing its implementation in the industry world and hence, proving to be a solution for damage assessment. With the help of IoT- enabled quality control system, six-sigma rule is also analysed. Post Covid crisis, it is important for every institution to gain back customer trust so quality of materials should be maintained and IoT enables us to do the same. The unification of industrial IoT (IIoT) and industry 4.0 is also discussed as it leads us to understand that this unification is the next evolution of smart manufacturing and digital technologies. This methodology can lead us to accelerated innovation in applications for overcoming the eventual challenges post Covid in the near future. Also, small-scale/large-scale companies making use of the above research methodology can adhere to six-sigma criterion.

scholarly journals Management of Stress in Culture Fish

2020 ◽  
Vol 11 (6) ◽  
pp. 607-612
Author(s):  
T. Suguna ◽  
Keyword(s):  
Large Scale ◽  
Age Groups ◽  
Stocking Density ◽  
Economic Loss ◽  
Small Scale ◽  
Root Cause ◽  
Disease Occurrence ◽  
Physico Chemical ◽  
Controlling Measures

Over the last three decades, the commercial aquaculture has experienced spectacular growth. Many species have gone from small scale regional production to large scale global production. Concomitant with the rapid growth there also has been the increased occurrence of problems that accompany all agricultural endeavours. All the problems are stress influenced leading to diseases, impacting the profitability of the industries. In aquaculture also inspite of the unprecedented development of the intensified culture practices many economical problems have arise that are threatening the sustainability of culture systems. The root cause for all is stress. The word, “stress” is very common butreflects vast effective results. It is an invisible factor, influencing the survivality, growth, reproduction, production in culture fish especially. It is much easier for diseases to proliferate in the culture environment than in wild. Defining what levels of stressors are normal and acceptable is not easy. A level of stressor that is problematic under one set of environmental conditions might not be the same under another. The susceptibility of disease occurrence differs within species and age groups. Different stress factor such as inadequate physico chemical and microbial quality of culture water, poor nutritional stems and high stocking density can cause infection by opportunistic pathogens. In aquaculture, the stress plays major role on production, productivity, sustainability of the culture, economic loss and degradation of economic standards. A summation of causes for the acute and chronic stressors will enlighten the aqua farmers, scientists and fishery officials in designing environmentally friendly controlling measures, in obtaining higher yields.

scholarly journals Contextual Contracts for Component-Based Resource Abstraction in a Cloud of HPC Services

2019 ◽  
Author(s):  
Wagner Al Alam ◽  
Francisco Carvalho Junior
Keyword(s):  
Cloud Computing ◽  
Parallel Computing ◽  
Large Scale ◽  
Matrix Multiplication ◽  
Small Scale ◽  
Computing Systems ◽  
Computing Platform ◽  
Computing Platforms

The efforts to make cloud computing suitable for the requirements of HPC applications have motivated us to design HPC Shelf, a cloud computing platform of services for building and deploying parallel computing systems for large-scale parallel processing. We introduce Alite, the system of contextual contracts of HPC Shelf, aimed at selecting component implementations according to requirements of applications, features of targeting parallel computing platforms (e.g. clusters), QoS (Quality-of-Service) properties and cost restrictions. It is evaluated through a small-scale case study employing a componentbased framework for matrix-multiplication based on the BLAS library.

Fracture of Monoliths Fabricated by Stacking Water Processed Green Ceramic Tapes

2005 ◽  
Vol 290 ◽  
pp. 203-207 ◽  
Author(s):  
Jonas Gurauskis ◽  
Javier Pascual ◽  
Tanja Lube ◽  
Antonio Javier Sanchez-Herencia ◽  
Carmen Baudín
Keyword(s):  
Fracture Behavior ◽  
Large Scale ◽  
Room Temperature ◽  
Tape Casting ◽  
Casting Process ◽  
Small Scale ◽  
Interface Defects ◽  
Fracture Patterns ◽  
Zro2 System

A lamination technique for joining ceramic green tapes fabricated from aqueous ceramic slurries via tape casting process is investigated. Monolithic pieces with varying compositions within the Al2O3 / t-ZrO2 system were fabricated by gluing the constituent tapes and pressing at room temperature. The quality of the interfaces between the different tapes in sintered specimens was evaluated by means of the fracture behavior of the pieces during the ball on three balls test. Different fracture patterns were found as a function of pressure and the characteristics of the tapes. Large scale interface defects led to delamination during fracture whereas no critical defects could be observed in the smooth fracture surfaces. Small scale interface defects were revealed by fracture.

scholarly journals Examination of a Stochastic and Deterministic Convection Parameterization in the COSMO Model

2015 ◽  
Vol 143 (10) ◽  
pp. 4088-4103 ◽  
Author(s):  
Kirstin Kober ◽  
Annette M. Foerster ◽  
George C. Craig
Keyword(s):  
Large Scale ◽  
Convective Precipitation ◽  
Small Scale ◽  
Synoptic Situation ◽  
Dependent Manner ◽  
Physical Processes ◽  
Verification Methods ◽  
Synoptic Forcing ◽  
Convection Parameterization

Abstract Stochastic parameterizations allow the representation of the small-scale variability of parameterized physical processes. This study investigates whether additional variability introduced by a stochastic convection parameterization leads to improvements in the precipitation forecasts. Forecasts are calculated with two different ensembles: one considering large-scale and convective variability with the stochastic Plant–Craig convection parameterization and one considering only large-scale variability with the standard Tiedtke convection parameterization. The forecast quality of both ensembles is evaluated in comparison with radar observations for two case studies with weak and strong synoptic forcing of convection and measured with neighborhood and probabilistic verification methods. The skill of the ensemble based on the Plant–Craig convection parameterization relative to the ensemble with the Tiedtke parameterization strongly depends on the synoptic situation in which convection occurs. In the weak forcing case, where the convective precipitation is highly intermittent, the ensemble based on the stochastic parameterization is superior, but the scheme produces too much small-scale variability in the strong forcing case. In the future, the degree of stochastic variability could be tuned, and these results show that parameters should be chosen in a regime-dependent manner.

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