U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "administrative management" Remove constraint Subject: "administrative management"
Start Over

Search

9,133  Search Results

« Previous | 1 - 20 of 9,133 |
Number of results to display per page

Search Results

1. Customer versus member engagement: Does mutuality matter?

Author:
Tim Mazzarol; Geoffrey N. Soutar; Sophie Reboud; Delwyn Clark
Source:
Journal of co-operative organization and management 2022 v.10 no.1 pp. 100166
ISSN:
2213-297X
Subject:
administrative management,   etc   ; models; questionnaires;     Show all 3 Subjects
Abstract:
... The purpose of this study was to examine the relative importance of customer engagement (CE) on customer loyalty (CL) and word of mouth (WOM) within co-operative and mutual enterprises (CMEs), and to see how these relationships compared to those found in more mainstream investor-owned businesses (IOFs). A large sample (n = 856) of CME members and IOF customers was drawn from an online consumer pan ...
DOI:
10.1016/j.jcom.2022.100166

2. Performances of Pressure Reducing Valves in Variable Demand Conditions: Experimental Analysis and New Performance Parameters

Author:
G. Ferrarese; S. Malavasi
Source:
Water resources management 2022 v.36 no.8 pp. 2639-2652
ISSN:
0920-4741
Subject:
administrative management,   etc   ; water; water distribution;     Show all 3 Subjects
Abstract:
... Pressure Reducing Valves (PRV) play a critical role in Water Distribution Networks (WDN): they regulate pressure ensuring an efficient service to users and preventing damage to pipelines. In recent years, the attention of water utilities towards pressure management and leakage control led to the necessity of more flexible and responsive technologies that can guarantee a higher level of pressure co ...
DOI:
10.1007/s11269-022-03166-5

3. Ancient Chinese magic square-based PV array reconfiguration methodology to reduce power loss under partial shading conditions

Author:
Rupendra Kumar Pachauri; Sudhakar Babu Thanikanti; Jianbo Bai; Vinod Kumar Yadav; Belqasem Aljafari; Santosh Ghosh; Hassan Haes Alhelou
Source:
Energy conversion and management 2022 v.253 pp. 115148
ISSN:
0196-8904
Subject:
administrative management,   etc   ; energy conversion; irradiation;     Show all 3 Subjects
Abstract:
... Non-uniform irradiation levels also have a negative impact on solar photovoltaic (PV) systems, forcing them to increase their power losses. Each PV array row has different current generation levels due to the effect of partial shading conditions (PSCs) and eventually has multiple power maxima, e.g. global maximum power point (GMPP) and local maximum power point (LMPP) on the power-voltage (P-V) ch ...
DOI:
10.1016/j.enconman.2021.115148

4. ‘Right‐way’ science: reflections on co‐developing Indigenous and Western cross‐cultural knowledge to support Indigenous cultural fire management

Author:
Michelle B. McKemey; Banbai Rangers; Yugul Mangi Rangers; Oliver Costello; John T. Hunter; Emilie J. Ens
Source:
Ecological management & restoration 2022 v.23 Suppl S1 pp. 75-82
ISSN:
1442-7001
Subject:
administrative management,   etc   ; ethics; Northern Territory;     Show all 3 Subjects
Abstract:
... Contemporary Indigenous cultural fire management facilitates opportunities for Indigenous peoples to connect to and manage their Country, as well as providing scope for research. Right‐way science is defined as collaborative process of bringing Indigenous and Western scientific knowledge and methods together to create ethical, productive and mutually beneficial research. Five key requirements of r ...
DOI:
10.1111/emr.12532

5. Ownership structures and risk taking in the German property-liability insurance market

Author:
Frederick Schuh; Lukas Michael Noth
Source:
Journal of co-operative organization and management 2022 v.10 no.1 pp. 100165
ISSN:
2213-297X
Subject:
administrative management,   etc   ; insurance; markets; ownership; risk;     Show all 5 Subjects
Abstract:
... This paper investigates whether the organizational form of a property-liability insurer influences its risk-taking. We investigate the investment and underwriting behavior of 62 German property-liability insurers in the period from 2000 to 2019. We find that stock insurers take higher risks, both in underwriting and in investments than mutual insurers. Our findings are relevant to customers, inves ...
DOI:
10.1016/j.jcom.2022.100165

6. Photovoltaic array reconfiguration under partial shading conditions for maximum power extraction: A state-of-the-art review and new solution method

Author:
Sevda Rezazadeh; Arash Moradzadeh; Kazem Pourhossein; Mohammadreza Akrami; Behnam Mohammadi-Ivatloo; Amjad Anvari-Moghaddam
Source:
Energy conversion and management 2022 v.258 pp. 115468
ISSN:
0196-8904
Subject:
administrative management,   etc   ; energy conversion; light intensity;     Show all 3 Subjects
Abstract:
... Non-uniform irradiance due to partial shading conditions (PSCs) reduces the power delivered by the photovoltaic (PV) cell. The output power reduction in the PV arrays directly depends on the shading pattern and type of array configuration which is selected. So far, many dynamic and static reconfiguration methods have been used for maximum power point tracking under PSCs in the PV arrays. However, ...
DOI:
10.1016/j.enconman.2022.115468

7. Thermodynamic performance enhancement of booster assisted ejector expansion refrigeration systems with R1270/CuO nano-refrigerant

Author:
Cenker Aktemur; İlhan Tekin Öztürk
Source:
Energy conversion and management 2022 v.253 pp. 115191
ISSN:
0196-8904
Subject:
administrative management,   etc   ; exergy; refrigeration; temperature; vapors;     Show all 5 Subjects
Abstract:
... Ejector expansion refrigeration systems have gained prominence in the refrigeration sector, providing much better thermodynamic performance than conventional refrigeration systems. The present work aims to improve the thermodynamic performance of a booster assisted ejector expansion vapour compression refrigeration system with constant area mixing theory for low-temperature applications using R127 ...
DOI:
10.1016/j.enconman.2021.115191

8. Thermodynamic, economic and environmental analyses of novel solar-powered ejector refrigeration systems

Author:
Vinay Kumar Yadav; Jahar Sarkar; Pradyumna Ghosh
Source:
Energy conversion and management 2022 v.264 pp. 115730
ISSN:
0196-8904
Subject:
administrative management,   etc   ; carbon dioxide; exergy; refrigeration;     Show all 4 Subjects
Abstract:
... The performance of an ejector refrigeration cycle can be improved by recovering expansion energy from condenser to evaporator using an additional two-phase ejector, but yet to be explored. Hence, two novel solar-driven ejector refrigeration systems are investigated on the basis of energy, exergy, economy and environmental aspects. The investigated systems are driven by an evacuated tube collector ...
DOI:
10.1016/j.enconman.2022.115730

9. Iso efficiency in nanostructured thermoelectric materials

Author:
Miguel Angel Olivares-Robles; Carlos Alberto Badillo-Ruiz; Pablo Eduardo Ruiz-Ortega
Source:
Energy conversion and management 2022 v.266 pp. 115857
ISSN:
0196-8904
Subject:
administrative management,   etc   ; energy conversion; geometry; temperature;     Show all 4 Subjects
Abstract:
... A study is carried out for the efficiency of segmented thermoelectric microgenerators (μSTEGs). The study includes a) n-type and p-type double or triple segmentation and b) geometry shape factor of the thermoelements. The temperature-dependent thermoelectric properties of nanostructured materials are determined from experimental data. In addition, the impact of internal resistance, as a function o ...
DOI:
10.1016/j.enconman.2022.115857

10. Performance of binary zeotropic mixtures in organic Rankine cycles (ORCs)

Author:
Mina Shahrooz; Per Lundqvist; Petter Nekså
Source:
Energy conversion and management 2022 v.266 pp. 115783
ISSN:
0196-8904
Subject:
administrative management,   etc   ; exergy; heat; temperature profiles;     Show all 4 Subjects
Abstract:
... Compared to pure fluids, zeotropic mixtures have the potential to lower the irreversibilities in low temperature Rankine cycles by better temperature profile matching of the working fluid with the heat source/sink. However, having a gliding temperature does not guarantee performance boost over pure fluids, as many factors influence the exergy efficiency of the cycle. In this study, 25 pure fluids ...
DOI:
10.1016/j.enconman.2022.115783

11. Enhancement effects of the obstacle arrangement and gradient height distribution in serpentine flow-field on the performances of a PEMFC

Author:
Yang Wang; Z.Y. Sun; Liu Yang
Source:
Energy conversion and management 2022 v.252 pp. 115077
ISSN:
0196-8904
Subject:
administrative management,   etc   ; catalysts; energy conversion; fuel cells;     Show all 4 Subjects
Abstract:
... The structure of flow-filed in the cathode-side channel played an important role to the performances of proton exchange membrane fuel cell (PEMFC) since it significantly influenced the transfer of reactant gas and the flooding phenomenon at the interface between gas diffusion layer (GDL) and catalyst layer (CL). For improving the performances of PEMFC from the structure of flow-field, serial obsta ...
DOI:
10.1016/j.enconman.2021.115077

12. Exploring Regional Profile of Drought History- a New Procedure to Characterize and Evaluate Multi-Scaler Drought Indices Under Spatial Poisson Log-Normal Model

Author:
Farman Ali; Zulfiqar Ali; Bing-Zhao Li; Sadia Qamar; Amna Nazeer; Saba Riaz; Muhammad Asif Khan; Rabia Fayyaz; Javeria Nawaz Abbasi
Source:
Water resources management 2022 v.36 no.9 pp. 2989-3005
ISSN:
0920-4741
Subject:
administrative management,   etc   ; climatology; drought; models; water; Pakistan;     Show all 6 Subjects
Abstract:
... Drought is recurrently occurring in many parts of the globe. In contrast to other natural hazards, drought has complex climatic characteristics. Several environmental factors are involved in the occurrence of drought hazards. However, the selection of an appropriate drought index may incorporate to make efficient drought mitigation policies. Moreover, the spatial distributions of extreme weather c ...
DOI:
10.1007/s11269-022-03159-4

13. Fuel-reforming effects on a gasoline direct injection engine under a low-temperature combustion mode: Experimental and kinetics analyses

Author:
Ratnak Sok; Jin Kusaka
Source:
Energy conversion and management 2022 v.255 pp. 115304
ISSN:
0196-8904
Subject:
administrative management,   etc   ; combustion; endothermy; energy conversion; gasoline;     Show all 5 Subjects
Abstract:
... Dedicated in-cylinder reforming where gasoline fuel is injected directly into a rich mixture can control the combustion of gasoline engines. This work investigates the effects of injection parameters and in-cylinder fuel reforming on a gasoline direction injection (GDI) engine operated under low-temperature combustion mode. The single-cylinder research engine is modified from a dedicated 4-cylinde ...
DOI:
10.1016/j.enconman.2022.115304

14. Does creating perceived co-operative member value pay off? An empirical study in the German co-operative banking context

Author:
Svenja Damberg
Source:
Journal of co-operative organization and management 2022 v.10 no.1 pp. 100170
ISSN:
2213-297X
Subject:
administrative management,   etc   ; empirical research; models; multivariate analysis;     Show all 4 Subjects
Abstract:
... The relevance of co-operative values and principles has long been discussed in co-operative literature. Building on a structured literature review and expert interviews, I develop a measure of perceived co-operative member value. Using a multivariate data analysis method, I establish a structural path model that incorporates this new measure. In a sample of 390 members of German co-operative banks ...
DOI:
10.1016/j.jcom.2022.100170

15. Hybrid vibro-acoustic energy harvesting using electromagnetic transduction for autonomous condition monitoring system

Author:
Iftikhar Ahmad; Lim Meng Hee; Ahmed M. Abdelrhman; Syed Asad Imam; M.S. Leong
Source:
Energy conversion and management 2022 v.258 pp. 115443
ISSN:
0196-8904
Subject:
administrative management,   etc   ; acoustics; energy efficiency; hybrids; vibration;     Show all 5 Subjects
Abstract:
... Condition monitoring systems (CMS) play a significant role in enhancing performance and lowering failure losses in any industrial setup. Appropriate wireless sensor nodes (WSNs) used in CMS will permit the user to check the live status of machines, however, these WSNs are facing the periodic replacement and recharging problems of batteries. Energy harvesters, used to scavenge ambient energy, are v ...
DOI:
10.1016/j.enconman.2022.115443

16. Total petroleum hydrocarbon removal from oil-sand by injecting charged nanobubbles

Author:
Thuy Thi Bui; Canh Duc Nguyen; Nayeon Shim; Mooyoung Han
Source:
Environmental nanotechnology, monitoring & management 2022 v.17 pp. 100653
ISSN:
2215-1532
Subject:
administrative management,   etc   ; contact angle; nanobubbles; oils; petroleum;     Show all 5 Subjects
Abstract:
... The objective of this study is to demonstrate oil-sand separation in the injection of positively charged nanobubbles (NBs) with respect to the effects of the NB/oil-sand ratio, treatment time, and NB injection regimes. Utilizing total petroleum hydrocarbon (TPH) removal, an assessment of the oil-sand separation efficiency is presented. The resulting injection of NBs was shown to be an effective tr ...
DOI:
10.1016/j.enmm.2022.100653

17. Volume of commercial timber found dead in managed Amazonian natural forests: Is it possible to take advantage?

Author:
Luiz Fernandes Silva Dionisio; Marcelo Martins Vaz; João Olegário Pereira de Carvalho; José do Carmo Alves Lopes
Source:
Forest ecology and management 2022 v.521 pp. 120441
ISSN:
0378-1127
Subject:
administrative management,   etc   ; forest management; lumber; mortality; wood;     Show all 5 Subjects
Abstract:
... In the natural forests of the Amazon, it is common to find dead trees due to natural causes during forest management operations. Despite being in good condition and in large numbers, these trees are not harvested. In this study, the woody volume of dead trees (DBH ≥ 50 cm) in logging areas was quantified. Five Annual Production Units (APUs) were inventoried, four logged in different years (2002; 2 ...
DOI:
10.1016/j.foreco.2022.120441

18. Embedded cooling method with configurability and replaceability for multi-chip electronic devices

Author:
Nan Zhang; Binbin Jiao; Yuxin Ye; Yanmei Kong; Xiangbin Du; Ruiwen Liu; Bo Cong; Lihang Yu; Shiqi Jia; Kunpeng Jia
Source:
Energy conversion and management 2022 v.253 pp. 115124
ISSN:
0196-8904
Subject:
administrative management,   etc   ; energy conversion; heat transfer; temperature;     Show all 4 Subjects
Abstract:
... Multi-chip thermal management technology is facing new challenges for improving system performance with the increasing use of multi-chip strategies in electronic systems. In this study, an embedded cooling method with configurability and replaceability for multi-chip electronic devices was demonstrated. A cooling module with the size of 70 × 88 × 9 mm³ for a 3 × 3 chip array verified the feasibili ...
DOI:
10.1016/j.enconman.2021.115124

19. The Mulloon Rehydration Initiative: The project’s establishment and monitoring framework

Author:
Luke Peel; Peter Hazell; Tony Bernardi; Stephen Dovers; David Freudenberger; Carolyn Hall; Donna Hazell; Walter Jehne; Leah Moore; Gary Nairn
Source:
Ecological management & restoration 2022 v.23 no.1 pp. 25-42
ISSN:
1442-7001
Subject:
administrative management,   etc   ; case studies; rehydration; streams; watersheds;     Show all 5 Subjects
Abstract:
... The Mulloon Rehydration Initiative is a case study highlighting the challenges of integrating research into a catchment scale land‐repair project involving multiple landowners and partners. Starting with an innovative project in 2006 to install ‘leaky weirs’ on a single property, the project has now expanded to include stream rehabilitation works on 16 properties and aims to cover an area of 23,00 ...
DOI:
10.1111/emr.12549

20. Pre-chamber combustion system for heavy-duty engines for operating dual fuel and diesel modes

Author:
Jisoo Shin; Jonghui Choi; Jaeyeob Seo; Sungwook Park
Source:
Energy conversion and management 2022 v.255 pp. 115365
ISSN:
0196-8904
Subject:
administrative management,   etc   ; combustion; energy conversion; methane; soot;     Show all 5 Subjects
Abstract:
... With the increase in heavy-duty engines, an enhanced combustion concept is necessary to meet stringent environmental regulations. Pre-chamber combustion systems can be used to improve combustion stability and emissions, and their design parameters are important because they affect the jet properties and engine performance. Therefore, this study investigates the combustion and emission characterist ...
DOI:
10.1016/j.enconman.2022.115365