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Tytuł:
Analysing the determinants, constraints and opportunities of smallholder farmers access to input markets: evidence from northern Ghana
Autorzy:
Adams, Abdulai
Osei-Amponsah, Charity
Tetteh Jumpah, Emmanuel
Powiązania:
https://bibliotekanauki.pl/articles/1892096.pdf
Data publikacji:
2020-07-08
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
determinants
constraints
market access
smallholder
farmers
input markets
northern Ghana
Opis:
Smallholder farmers face multiple constraints in accessing input markets. This study seeks to understand the dynamics that influence input markets in northern Ghana and the opportunities that exist for smallholder farmers to increase their productivity and welfare. Using a random sample of 448 households, the study applied the probit and non-parametric methods in identifying the factors that influence farmers’ access to input markets and the key constraints faced by them. The results show that access to extension services, access to finance, distance to the nearest input market, and input source are significant factors that would be likely to influence farmers’ access to input markets. Lack of finance, poor road network, and low prices of output are the main critically ranked constraints limiting farmers’ access to input markets. Policy initiatives should be geared toward strengthening extension service delivery, farmer education on inputs, improving feeder roads, and encouraging private sector participation in input markets. Available opportunities to leverage on and improve farmers’ access to input markets include the governments’ input subsidy programmes, existing large-scale agricultural projects, private agricultural companies with contract farming models, and extensive network of input dealers and aggregators in the communities. These findings are relevant for farmers, input dealers and policy makers working to improve farmers’ access to input markets.
Źródło:
Journal of Agribusiness and Rural Development; 2020, 56, 2; 133-143
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of air cargo traffic at airports in Nigeria and Ghana
Autorzy:
Adenigbo, Adedotun Joseph
Powiązania:
https://bibliotekanauki.pl/articles/27324299.pdf
Data publikacji:
2023
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
air cargo
cargo types
origin flow
destination flow
cargo forecast
Opis:
Fluctuations that characterise airport traffic make planning for efficient operations difficult. This study examines air cargo traffic at Murtala International Airport, Lagos, Nigeria, and Kotoka International Airport, Accra, Ghana. The study focused on the trend of cargo volume, origin, and destination and forecasted the cargo volume at the airports. Air cargo data from 1991-2022 were collected from the Federal Airport Authority of Nigeria (FAAN) and Ghana Airport Company Limited (GACL). Descriptive techniques using line graphs and GIS mapping were used to analyse data. Time series techniques of moving and weighted averages, exponential smoothing, and least square techniques were used to forecast the cargo volume of the airports. The study found a characteristic fluctuating pattern of cargo flow. Nigeria’s dominating export cargo types are general goods, edible items, and hair attachments. Ghana’s dominating export cargo types were pineapple, general goods, and papaya. Germany, followed by Ethiopia and Turkey, dominate the origin of import cargo, while the United Kingdom, UAE, and Turkey dominate the destination of export cargo from Nigeria. Luxembourg, Turkey, and the UK dominate the origin of import cargo, while the UK, Netherlands, UAE, and Qatar dominate the destination of export cargo in Ghana. The least-square technique predicts 3.67% and 2.3% growth of cargo traffic in Nigeria and Ghana, respectively. An increasing trend in cargo volume was predicted for both airports. Both countries need to strategise on their relationships with other countries and develop policies that will increase cargo flow by air.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2023, 8, 2; 23--42
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sustainable management of existing suppliers: a perspective of selected firms in Ghana
Autorzy:
Amege, H.
Hanu, C.
Powiązania:
https://bibliotekanauki.pl/articles/409254.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
sustainability
supplier development
existing suppliers and supply chain
Opis:
Companies are perceived as key actors in the drive for sustainability and are expected to supervise and develop their suppliers’ efforts towards social and environmental responsibility. The purpose of this article is to investigating if buying firms help develop sustainability management practices in their existing suppliers in Ghana. Data was collected through exploratory survey from conveniently sampled respondents in focal firms actively involved in the supply management activities of their organizations. Results reveal less evidence of sustainable supplier development activities by the focal firms both on environmental and social dimensions. Buying firms should take necessary steps towards implementing structured sustainability development activities to effectively manage a sustainable portfolio of their existing suppliers.
Źródło:
Research in Logistics & Production; 2018, 8, 4; 303-316
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Move Analysis of the Concluding Sections of Televised Sports News Presentations in Ghana
Autorzy:
Amoakohene, Benjamin
Amoakohene, Margaret Ivy
Powiązania:
https://bibliotekanauki.pl/articles/2081265.pdf
Data publikacji:
2021-06-24
Wydawca:
Akademia Pedagogiki Specjalnej. Language and Society Research Committee
Tematy:
Genre; Move
Discourse Community
Televised Sports News
Opis:
The study presents an analysis of the concluding sections of televised sports news (TSN), an aspect of a stand-alone sports news broadcast, of selected Ghanaian television stations aimed at exploring their schematic structure. The study uses the genre-based theory from the perspectives of Swales (1990) and Bhatia (1993) to analyze 50 televised sports news from Ghana Television (GTV), Metropolitan Entertainment Television (Metro TV) and TV3 Network Limited (TV3). The findings reveal that this unique genre has five rhetorical moves and the move sequence is characterized by irregular patterns. The results further reveal that the choice of words (language use) in the concluding sections of the TSN is influenced by the distinct communicative purposes of the five moves. Also, Move 4 (Creating Awareness of Impending Sporting Activities) has the largest space in the concluding sections of TSN whilst Move 5 (Well Wishes) occupies the least space. The study has implications for media and communication studies serving as a model to assist novice radio and television sports presenters by facilitating their successful acculturation into the discourse community of sports journalism. The study also has implications for the genre theory in general and sports discourse in particular.
Źródło:
Language, Discourse & Society; 2021, 9 (1); 149-164
2239-4192
Pojawia się w:
Language, Discourse & Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Face-attack in Political Discussions on Radio in the Context of Ghana’s 2016 Electioneering Period
Autorzy:
Anderson, Jemima Asabea
Thompson, Rachel G. A.
Amoakohene, Margaret Ivy
Tawiah, Vincent
Powiązania:
https://bibliotekanauki.pl/articles/2081264.pdf
Data publikacji:
2021-06-24
Wydawca:
Akademia Pedagogiki Specjalnej. Language and Society Research Committee
Tematy:
Election
Face Attack
Politics
Free Speech
Democracy
Radio
Opis:
We examined insulting and offensive comments made by political actors and party sympathizers on radio as recorded by the Media Foundation for West Africa in the 2016 electioneering period in Ghana. Using the concepts of face and face attack, we found that rival politicians, members/affiliates of political parties and even journalists were attacked through face-threatening acts which include the use of name-calling expressions and derogatory adjectives. We identified face-attacking expressions in the form of attack on moral behaviour, attack on intellectual/mental ability, and attack on physical appearance/characteristics. As suggested by previous studies, face attacks block the free exchange of critical ideas which play a very important role in the development of democratic countries as many citizens would not want to get involved in discussions that threaten their self-image. We, therefore, recommend that political actors in Ghana desist from disrespecting people of divergent political backgrounds or persuasions and rather focus on substantive issues in their public speeches.
Źródło:
Language, Discourse & Society; 2021, 9 (1); 79-94
2239-4192
Pojawia się w:
Language, Discourse & Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact Of Non-Performing Loans On Bank Profitability: Empirical Evidence From Commercial Banks In Ghana
Wpływ kredytów zagrożonych na rentowność banków: dowody empiryczne z banków komercyjnych w Ghanie
Autorzy:
Angsoyiri, Dramani
Powiązania:
https://bibliotekanauki.pl/articles/2040873.pdf
Data publikacji:
2021
Wydawca:
Politechnika Gdańska
Tematy:
non-performing loans
credit risk
commercial banks
kredyty zagrożone
ryzyko kredytowe
banki komercyjne
Opis:
This study examined the influence of non-performing loans on Ghana commercial banks’ profitability in the 2009–2018 period. The factors that explain the NPL contain very essential information for banks. The results indicate that the effect of non-performing loans on profit-ability is not statistically significant: operating expense efficiency and return on equity, have a positive and statistically significant relationship with profitability. The sample consisted of the banking sector (commercial banks) in the 2009–2018 period. The factors include return on assets as a function of the ratio of non-performing loans, credit risk, exchange rate, inflation, unemployment, and bank size as a control variable. The estimation was done by regression using multivariate linear regression through SPSS software.The study considered limited banking indicators as determinants of non-performing loans and was limited to the specific 2009–2018 time frame. The regression results indicate that bank profitability is strongly impacted by the increase in non-performing loans. The multivariate linear regression shows that profitability has a positive insignificant influence on non-performing loans. On the other hand, operating expense efficiency and return on equity have a positive and statistically significant relationship with profitability. Hence, when the banking sector’s expenses are higher as compared to its revenue, the banks’ overall profit would be low, impacting non-performing loans of the banks. The operating expenses should therefore be maintained as low as possible.
W badaniu określono wpływ kredytów zagrożonych (ang. NPL - non performing loans) na rentowność banków komercyjnych w Ghanie w latach 2009–2018. Czynniki wyjaśniające NPL zawierają istotne informacje dla banków. Wyniki analizy wskazują, że wpływ kredytów zagrożonych na rentowność nie jest statystycznie istotny: efektywność kosztów operacyjnych i zwrot z kapitału własnego mają dodatni i statystycznie istotny związek z rentownością. Próba obejmowała sektor bankowy (banki komercyjne) w okresie 2009–2018. Czynniki te obejmują zwrot z aktywów jako funkcję stosunku kredytów zagrożonych, ryzyko kredytowe, kurs walutowy, inflację, bezrobocie i wielkość banku jako zmienną kontrolną. Oszacowania dokonano za pomocą regresji przy użyciu wielowymiarowej regresji liniowej za pomocą oprogramowania SPSS. W badaniu wzięto pod uwagę ograniczone wskaźniki bankowe jako wyznaczniki kredytów zagrożonych i ograniczono się do określonego przedziału czasowego 2009–2018. Wyniki przeprowadzonej regresji wskazują, że na rentowność banków duży wpływ ma wzrost liczby kredytów zagrożonych. Wielowymiarowa regresja liniowa pokazuje, że rentowność ma pozytywny, nieistotny wpływ na kredyty zagrożone. Z drugiej strony efektywność kosztów operacyjnych i zwrot z kapitału mają dodatni i statystycznie istotny związek z rentownością. W związku z tym, gdy wydatki sektora bankowego są wyższe w porównaniu z jego przychodami, ogólny zysk banków byłby niski, co miałoby wpływ na zagrożone kredyty banków. Dlatego też koszty operacyjne powinny być utrzymywane na jak najniższym poziomie.
Źródło:
Przedsiębiorstwo we współczesnej gospodarce - teoria i praktyka; 2021, 2, 33; 20-35
2084-6495
Pojawia się w:
Przedsiębiorstwo we współczesnej gospodarce - teoria i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of the ban on illegal mining activities on raw water quality: a case-study of Konongo Water Treatment Plant, Ashanti Region of Ghana
Autorzy:
Anyame, Bawa Sadique
Antwi-Agyei, Prince
Domfeh, Martin Kyereh
Powiązania:
https://bibliotekanauki.pl/articles/2201399.pdf
Data publikacji:
2022
Wydawca:
Główny Instytut Górnictwa
Tematy:
galamsey
illegal mining
water quality
Mann-Kendall test
Konongo Water Treatment Plant
Anuru River
nielegalne wydobycie
jakość wody
test Manna-Kendalla
stacja uzdatniania wody Konongo
rzeka Anuru
Opis:
The Government of Ghana prohibited Artisanal and Small-Scale Mining (ASM) operations from 2017 to 2018 as part of its strategy to address the socio-environmental issues caused by illegal mining activities, also referred to as “galamsey” operations. This study assessed the trend in the water quality of raw water abstracted at the Konongo Water Treatment Plant (WTP) for treatment before and after implementing the ban on “galamsey” operations. The main source of raw water for the Konongo WTP is the Anuru River. Secondary data on physicochemical water quality from 2006 to 2019 was sourced from the Konongo WTP and the Ashanti Regional Water Quality Assurance Unit of Ghana Water Company Limited (GWCL). Mann-Kendall seasonality test was used to determine trends in the water quality data using XLSTAT statistical tool. The results showed a statistically significant (5% level of significance) upward trend in colour, turbidity, temperature, total iron, and sulphate before the ban on “galamsey” activities. There was statistically significant evidence of a downward trend in total hardness, calcium hardness, turbidity, total alkalinity, and chloride after the ban on “galamsey” operations.
Źródło:
Journal of Sustainable Mining; 2022, 21, 2; 80--92
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Non-farm livelihood diversification: strategies and constraints in selected rural and peri-urban communities, Ghana
Autorzy:
Asare, Kofi Yeboah
Agyenim, Joseph Boateng
Koomson, Frederick
Powiązania:
https://bibliotekanauki.pl/articles/1886536.pdf
Data publikacji:
2021-04-02
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
non-farm
diversification
rural
strategies
constraints
Ghana
Opis:
Non-farm livelihood diversification is an important livelihood strategy for rural households in Sub-Saharan Africa. However, the available evidence suggests that these strategies have received less attention; therefore, the constraints rural people face in venturing into the non-farm sector also remain unaddressed. In order to understand the livelihood strategies and constraints in the sector, this paper used crosssectional survey data from 251 randomly sampled farmers from the Sunyani West District, Ghana. Focus Group Discussions were also conducted in order to collect qualitative data to support quantitative analysis. The data were analyzed using descriptive statistics: frequencies, percentages and cross tabulation. The study found that the non-farm sector was heterogeneous and highly gendered and involved several activities, with trading being the most prominent one. Gender disaggregation of non-farm activities has underlying cultural and social bases resulting in different production roles for males and females. Although farmers are predominantly engaged in farming as their major livelihood strategy, they also pursue non-farm livelihood activities due to push, rather than pull, factors. Inadequate access to credit and limited business opportunities were the major constraints impeding the development of the non-farm sector in the district. In order to propel rural development, policy makers and researchers should give attention to the development of the non-farm sector since it is an important source of income for many people. Apart from that, the study recommends that banking and micro-finance institutions design special credit programmes for rural people.
Źródło:
Journal of Agribusiness and Rural Development; 2021, 59, 1; 5-15
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing the Threat of Erosion to Nature-Based Interventions for Stormwater Management and Flood Control in the Greater Accra Metropolitan Area, Ghana
Autorzy:
Asiedu, J. K.
Powiązania:
https://bibliotekanauki.pl/articles/124600.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
RUSLE model
soil loss
clogging
infiltration
stormwater management
Opis:
Perennial flooding has become a major feature in urban areas in developing economies generating research interest towards finding alternative approaches to stormwater management which could complement the existing systems and help address the challenge of flooding. One of such alternative approaches is nature-based stormwater management and flood control, the implementation of which could be affected by soil erosion. This paper, as part of a wider research, was developed to determine the extent of the threat of soil erosion to stormwater management in an urban area on the example of Greater Accra Metropolitan Area, Accra Ghana as the focus of the research. Landsat 8 images (2014) were used in the research to prepare the Landcover maps. Daily rainfall data from 6 raingauge stations from 1972 to 2014 were utilized to prepare the rainfall erosivity factor maps, whereas DEM was used to prepare the slope and slope length (SL) factor maps. The land cover map with an overall accuracy of 73.6 and Kappa 0.7122 was combined with literature sources to prepare the vegetative cover factor map, and conservation practice factor map. A soil series map, prepared and updated with literature sources and data from the Harmonized World Soil Database on physical parameters, was used to calculate the soil erodibility factor (K factor) for each soil series. These were integrated into RUSLE model as 30 m raster maps to generate a soil loss map at tons/ha/yr. The results produced rainfall erosivity index values based on the modified Fournier index ranging between 0.058 and 23.197 which is classified as low. Low soil erodibility factor (K) ranging between 2.9×10–5 and 8.5×10–2 t ha/MJ mm indicated low susceptibility to erosion, SL factor value showing areas of low to almost flat relief with a few isolated areas of moderate slope length were generated. A soil loss of 69,5918 tons/ha/yr classified the soils as having high potential soil loss. The results showed a very low soil loss threat of 0–5.1853 tons/Ha/yr for more than 90% of the study area. Targeted intervention for source areas with high potential soil loss will contain any threat of erosion and sediment yield to the implementation of an infiltration-based stormwater management and flood control system.
Źródło:
Journal of Ecological Engineering; 2018, 19, 1; 1-13
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Success factors for micro and small agribusiness enterprises (MSEs) - the case of Ghana
Autorzy:
Asuming Boakye, A.
Ampadu-Ameyaw, R.
Essegbey, G.O.
Onumah, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/43874.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
Ghana
micro-enterprise
small enterprise
success factor
entrepreneurship
economic growth
business success
Źródło:
Journal of Agribusiness and Rural Development; 2018, 47, 1
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Analysis of Students’ Knowledge in Spelling: A Case of a Technical University in Ghana
Autorzy:
Atatsi, Eli Ayawo
Amoakohene, Benjamin
Powiązania:
https://bibliotekanauki.pl/articles/513808.pdf
Data publikacji:
2019-06-30
Wydawca:
Akademia Pedagogiki Specjalnej. Language and Society Research Committee
Tematy:
Spelling errors
Transposition errors
Insertion errors
Substitution errors
Opis:
High proficiency level in spelling is considered to be an important literally skill writers need to be able to establish shared meaning with their readers. However, the Applied Linguistic literature reveals that spelling errors dominantly plaque the essays of students who speak English as Second Language (ESL). In lieu with this, this study sheds light on students’ knowledge in spelling in a Technical University in Ghana. The participants for the study involve 275 students who were randomly selected from three academic levels. The random sampling procedure was further used by the researchers to select 30 English words out of 50 words that have been compiled by the Communicative Skills Unit as the most consistent misspelled words in the written English essays of students of the Technical University over a period of four years. The respondents were further tested on how well they could spell those words. The findings confirm three main types of spelling errors: “insertion errors”, “substitution errors” and “transposition errors”. The findings further reveal that the students’ inability to correctly spell most of the words that were dictated to them is a result of their unfamiliarity with the words, their inability to account for the right pronunciation associated with those words that were dictated to them as well as the failure of students to edit their work after the spelling exercise. It is also confirmed that the academic levels of the students do not have a significant influence on their performance in the spelling.
Źródło:
Language, Discourse & Society; 2019, 7, 1; 239-257
2239-4192
Pojawia się w:
Language, Discourse & Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrences of elaterate pollen from the Lower Cretaceous of Ghana: Implications for biostratigraphy and palaeoclimatology
Autorzy:
Atta-Peters, D.
Powiązania:
https://bibliotekanauki.pl/articles/11744.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
occurrence
pollen
Lower Cretaceous
Cretaceous
Ghana
biostratigraphy
paleoclimatology
paleoclimate
Elaterocolpites castelaini
Elaterosporites klaszii
Elaterosporites protensus
Elaterosporites verrucatus Elateropollenites jardinei
Galaeocornea causea
Galaeocornea clavis
Sofrepites legouxae
Opis:
Elaterate pollen with elater-like protruberances including Elaterocolpites castelaini, Elaterosporites klaszii, E. protensus, E. verrucatus, Elateropollenites jardinei, Galaeocornea causea, G. clavis, Sofrepites legouxae, have been recovered from the 1S-3AX well in the offshore Tano Basin. The assemblage has been interpreted as Albian - Cenomanian age, and is indicative of an arid to semi-arid palaeoclimatic conditions for these periods in the Tano Basin. Similar species have been interpreted as Albian – Cenomanian in other localities within the Africa-South America (ASA) province and thus allows for a palynostratigraphic correlation with these localities in the ASA province.
Źródło:
International Letters of Natural Sciences; 2013, 04
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynology, palynofacies and palaeoenvironments of sedimentary organic matter from Bonyere - 1 Well, Tano basin, western Ghana
Autorzy:
Atta-Peters, D.
Agama, C.I.
Asiedu, D.K.
Apesegah, E.
Powiązania:
https://bibliotekanauki.pl/articles/11090.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
palynology
palynofacies
paleoenvironment
palinostratigraphy
sediment
organic matter
geological formation
Tano basin
Ghana
Opis:
Palynofacies analyses from Bonyere Well No. 1 in the Tano basin, western Ghana has revealed five palynofacies associations (I – V) based on the percentage relative abundances of the sedimentary organic matter (SOM). The palynofacies associations reflect deposition in a fluvio-deltaic (oxic) environment, a distal dysoxic-anoxic shelf environment, a proximal dysoxic-suboxic environment, nearshore (oxic) and a fluvio-deltaic/nearshore environment with high oxygen levels and low preservation rates respectively. Based on marker palynomorphs, Campanian – Maastrichtian age has been assigned to sediments within the interval (1800-10 ft) – (90-100 ft), Turonian – Lower Senonian (Santonian) age between (3160-70 ft) – (1980-90 ft) and Aptian age between the interval (8140-50 ft) – (3340-50 ft). The absence of the elater-bearing pollen which are typical Africa-South America (ASA) elements for the Albian – Cenomanian age is indicative of an unconformity between the Aptian and Turonian sediments.
Źródło:
International Letters of Natural Sciences; 2013, 05
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance analysis of a desiccant evaporative cooling system for mango fruit storage in the savannah and transitional zones of Ghana
Analiza wydajności systemu pośredniego chłodzenia wyparnego do przechowywania owoców mango na sawanach i w strefach przejściowych Ghany
Autorzy:
Awafo, Edward
Addo, Ahmad
Bart-Plange, Ato
Powiązania:
https://bibliotekanauki.pl/articles/93621.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
mango
storage
dehumidification
evaporative cooling
Ghana
przechowywanie
osuszanie
chłodzenie wyparne
Opis:
Performance analysis of a 1.0 tonne desiccant evaporative cooling storage structure for mango fruits was studied. The study examined the effects of inlet air conditions and water flow rates through an absorber on the cooling performance of the system. The airflow rate was approximately 0.24 m3·s -1 and water flow rates through the absorber varied from 0 to 0.252 l·s -1 . The system produced approximately 7 kW of cooling at water supply rate of 0.252 l·s -1. A simple linear correlation was established for condition line slope from inlet to exiting air conditions for all the water flow rates. Lines of best fit resulted in correlation coefficient better than 0.96. The observed temperatures with a direct evaporative cooler, tested with freshly harvested mango fruits were found to be between 15.1°C and 23.4°C and relative humidity between 81.8% and 97.7%. Physiological weight loss and firmness assessments of the fruits were also conducted.
Artykuł omawia analizę wydajności chłodni wyparnej o poj. 1,0 tony, wykorzystywanej do przechowywania owoców mango. Zbadano wpływ warunków wlotowych powietrza i szybkości przepływu wody przez pochłaniacz na wydajność chłodniczą systemu. Natężenie przepływu powietrza wynosiło około 0,24 m3·s-1 , a natężenie przepływu wody przez absorber wahało się od 0 do 0,252 l·s-1 . W tym czasie wyprodukowano około 7 kW chłodu przy przepływie wody wynoszącym 0,252 l·s -1 . Określono prostą korelację liniową nachylenia linii wykresu warunków, od wlotu do wylotu powietrza, dla wszystkich wielkości przepływu wody. Linie o najlepszym dopasowaniu dały współczynnik korelacji powyżej 0,96. Zaobserwowane temperatury chłodni wyparnej, sprawdzane na świeżo zebranych owocach mango, wynosiły od 15,1°C do 23,4°C, a wilgotność względna od 81,8% do 97,7 %. Dokonano również oceny fizjologicznej utraty masy i jędrności owoców.
Źródło:
Agricultural Engineering; 2019, 23, 3; 1-14
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recepcja obecności Instytutów Konfucjusza w wybranych krajach Afryki Zachodniej.
Reception of Confucius Institutes’ Presence in Selected African States
Autorzy:
Bakalarska, Malwina
Powiązania:
https://bibliotekanauki.pl/articles/506286.pdf
Data publikacji:
2015
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
Confucius Institutes
China in Africa
West African universities
Nigeria
Benin
Togo
Ghana
soft power
cultural diplomacy
Opis:
The article presents current problems related to the Chinese cultural and educational activity in West Africa, developed since 2008 through Confucius Institutes. First part focuses on theoretical framework of concepts soft power and cultural diplomacy as tools of the Chinese foreign policy in West African states. Then, background and aims of establishment of Confucius Institutes were explained in a global, and regional, sub-Saharan context. Second part describes three main types of reactions of Africans for Confucius Institutes in West Africa. Apart from the general tendencies, described in the literature, author refers to first-hand statements of Nigerian students and lecturers from the local branches of the Confucius Institute. In the final remarks, common features of Confucianism and African values with contribute to „sino-optimistic” attitude where highlighted. They result in enthusiastic reception of the educational/propaganda offer of the Confucius Institutes in Africa.
Źródło:
Krakowskie Studia Międzynarodowe; 2015, 3; 89-102
1733-2680
2451-0610
Pojawia się w:
Krakowskie Studia Międzynarodowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 75

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