scholarly journals TECHNIQUE FOR TESTING FUEL PUMPS FOR VEHICLES USED IN HOT-CLIMATE REGIONS

2020 ◽  
Vol 81 (12-2) ◽  
Author(s):  
Bakhrom Kayumov
Keyword(s):  
Hot Climate ◽  
Testing Fuel

SPECIFICITY OF THE CLINICAL COURSE OF THE INITIAL STAGES OF HYPERTENSION IN ARID ZONES OF UZBEKISTAN AND NON-DRUG APPROACHES TO TREATMENT

2020 ◽  
Author(s):  
U.R. Narzulaeva ◽  
G.U. Samieva ◽  
M.Sh. Ismatova
Keyword(s):  
At Risk ◽  
Drug Treatment ◽  
Healthy Lifestyle ◽  
Clinical Course ◽  
Arid Zones ◽  
Etiological Factors ◽  
Renin Angiotensin ◽  
Early Stages ◽  
Hot Climate ◽  
Patients At Risk

The article describes the etiological factors, the course and risks of the development of hypertension in the early stages in a hot climate. The data on the pathogenesis of hypertension and the effects of pathogenetic variants of the sympatho-adrenal and renin-angiotensin systems are summarized. Non-drug treatment is proposed by observing a healthy lifestyle in patients at risk.

Comparison of sewage sludge treatment systems for regions with hot climate

2007 ◽  
Vol 2 (1) ◽  
Author(s):  
Petia Mijaylova Nacheva ◽  
G. Moeller-Chávez ◽  
E. Ramírez-Camperos ◽  
L. Cardoso-Vigueros
Keyword(s):  
Sewage Sludge ◽  
Alkaline Treatment ◽  
Sludge Treatment ◽  
Tropical Regions ◽  
Aeration Time ◽  
Sludge Stabilization ◽  
Hot Climate ◽  
Aerobic Stabilization ◽  
Sewage Sludge Treatment ◽  
High Pathogenic

The tropical regions have specific problems associated with high pathogenic density in the sewage sludge. The aim of this study was to select an adequate sludge stabilization and valorization system comparing the performance of four technologies: anaerobic stabilization without heating, aerobic stabilization, alkaline treatment with lime and aerobic composting. The study was performed in a pilot plant which was built and operated during six months. The main problem for the beneficial use of the sludge was its pathogenicity. All the systems allowed obtaining stabilized products which met the bacteriological criteria for some kind of use. The compost and the alkalinized sludge were bacteriologically safe for use without restrictions in accordance with the Mexican regulations. The accomplishment of the parasitological criteria for use was however impossible with the anaerobic and with the aerobic systems. The compost obtained at 55-60°C with 25d aeration time and the alkaline sludge fulfill the criteria established by for forest and agriculture use and for soil conditioning. The composting could reach the requirements for unrestricted use when operated at temperatures 65-70°C during 45 days which makes it the most adequate sludge treatment system for hot climate regions.

HISTORY OF THE GOSNITI ESTABLISHMENT

2020 ◽  
Vol 4 (141) ◽  
pp. 165-175
Author(s):  
VYACHESLAV CHERNOIVANOV ◽  
◽  
VALENTIN LYALYAKIN
Keyword(s):  
National Economy ◽  
The State ◽  
Advanced Technology ◽  
Research Purpose ◽  
Quantitative Composition ◽  
Technical Documentation ◽  
Agricultural Machinery ◽  
History Of ◽  
Electric Brake ◽  
Testing Fuel

With the increase in the production of new machines, it was necessary to pay more attention to their repair and maintenance, expand research, create appropriate standards, and constantly update technical documentation. The pre-1953 repair laboratories were not powerful enough to solve the growing problems. In 1953, it was decided to establish The State Union Research Institute for the Repair and Operation of Tractors and Agricultural Machinery. (Research purpose) The research purpose is in describing the history of GOSNITI establishment, analyzing the tasks and results of the Institute's activities over the first decade. (Materials and methods) The article presents the base of the new Institute and its quantitative composition. The article describes the main objectives of the Institute and its activities. (Results and discussion) Work was carried out to create self-moving workshops for filling filters, electric brake stands, stands for testing fuel equipment, equipment for vibration contact surfacing. The calculations of the repair base for the regions were carried out. The article presents the list of works that were widely implemented in the national economy and the list of publications of technical documentation. GOSNITI was awarded the Order of the Red Banner of Labor by the decree of the Presidium of the Supreme Soviet of the USSR on May 25, 1967, for implementing the system and advanced technology for repairing cars. (Conclusions) The staff of the established Institute successfully completed the tasks set in the first decade.

An experimental evaluation of indirect direct evaporative cooling unit for hot climate

2021 ◽  
Vol 24 (3/4) ◽  
pp. 237
Author(s):  
Bourhan Tashtoush ◽  
Nelson Chilengwe ◽  
Mohamed Musthafa ◽  
Yousef Al Horr
Keyword(s):  
Experimental Evaluation ◽  
Evaporative Cooling ◽  
Hot Climate ◽  
Cooling Unit ◽  
Direct Evaporative Cooling

Principal operators' farm risk attitudes in hot and cold climates

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ahmad Zia Wahdat ◽  
Michael Gunderson
Keyword(s):  
Risk Mitigation ◽  
Risk Attitude ◽  
Cold Climate ◽  
Risk Attitudes ◽  
Ordered Logit ◽  
Climate Classification ◽  
Content Type ◽  
Hot Climate ◽  
The Us ◽  
The Government

PurposeThe study investigates whether there is an association between climate types and farm risk attitudes of principal operators.Design/methodology/approachThe study exploits temperature variation in the diverse climate types across the US and defines hot- and cold-climate states. Ordered logit and generalized ordered logit models are used to model principal operators' farm risk attitudes, which are measured on a Likert scale. The study uses two datasets. The first dataset is a 2017 survey of US large commercial producers (LCPs). The second dataset provides a Köppen-Geiger climate classification of the US at a spatial resolution of 5 arcmin for a 25-year period (1986–2010).FindingsThe study finds that principal operators in hot-climate states are 4–5% more likely to have a higher willingness to take farm risk compared to principal operators in cold-climate states.Research limitations/implicationsIt is likely that farm risk mitigation decisions differ between hot- and cold-climate states. For instance, the authors show that corn acres' enrollment in federal crop insurance and computers' usage for farm business are pursued more intensely in cold-climate states than in hot-climate states. A differentiation of farm risk attitude by hot- and cold-climate states may help agribusiness, the government and economists in their farm product offerings, farm risk management programs and agricultural finance models, respectively.Originality/valueBased on Köppen-Geiger climate classification, the study introduces hot- and cold-climate concepts to understand the relationship between climate types and principal operators' farm risk attitudes.

ESTIMATION OF GENETIC DIVERGENCE IN CHILLI PEPPER (CAPSICUM ANNUUM L.) GENOTYPES FOR MORPHOLOGICAL AND FRUIT TRAITS UNDER HOT CLIMATE OF UMERKOT, SINDH

2021 ◽  
Vol 37 (1) ◽  
pp. 21-28
Author(s):  
A. Memon ◽  
R. Ahmad ◽  
M. S. Depar ◽  
A. K. Pathan ◽  
D. Ibrar
Keyword(s):  
Cluster Analysis ◽  
Genetic Divergence ◽  
Agricultural Research ◽  
Arid Zone ◽  
Principal Component ◽  
Fruit Weight ◽  
Economic Traits ◽  
Chilli Pepper ◽  
Hot Climate ◽  
Improvement Programs

Thirty-two genotypes of chilli from three different sources (local dandicuts, AVRDC and PGRI PARC) were evaluated for the presence of genetic divergence among them for different agro-economic traits i.e., plant height, stem girth, fruit length, fruit girth, number of fruits per plant, number of seed per fruit, fresh fruit weight and dry fruit weight at Arid Zone Agricultural Research Institute, Umerkot, Sindh during 2018. All these genotypes were found to be significantly different from each other for all the studied traits. For further diversity analysis, multivariate analyses like principal component analysis (PCA) and Cluster analysis were also performed to figure out the traits responsible for maximum variability and grouping of genotypes according to their similarities and differences for their future utilization in chilli breeding programs. PCA analysis showed that first four PCs exhibited 82.79% of the total variability among these 32 chilli genotypes. Cluster analysis showed four different sub-clusters and the genotypes from every single source merge in each sub-cluster, thus showing that chilli genotypes are from different geographical backgrounds. Based on these results, the chilli genotypes can be further utilized in future chilli improvement programs in Pakistan.  Genotypes AZRI-DS-14, AZRI-DS-01 and AVPP-9804 showed better performance.

scholarly journals The Impact of Variable Thermal Conductivity of Insulation Materials on the Building Energy Performance in Hot Climate

2019 ◽  
Vol 103 ◽  
pp. 02001 ◽  
Author(s):  
Maatouk Khoukhi ◽  
Ahmed Hassan ◽  
Shaimaa Abdelbaqi
Keyword(s):  
Thermal Conductivity ◽  
Energy Performance ◽  
Variable Thermal Conductivity ◽  
Transfer Model ◽  
Ambient Conditions ◽  
K Value ◽  
Hot Climate ◽  
Building Wall ◽  
Wall Assembly ◽  
The Impact

This paper illustrates the impact of embedding an insulation layer of variable thermal conductivity in a typical building wall on the cooling effect and energy performance. The evaluation was performed by applying a conjugate heat transfer model, which was tested in extremely hot conditions of Al Ain (UAE). The thermal performance of a building incorporating insulation layers of variable thermal conductivity (k-value) was compared to a non-variable thermal conductivity system by quantifying the additional heat transferred due to the k-relationship with time. The results show that, when the k-value is a function of operating temperature, its effects on the temperature profile through the wall assembly during daytime is significant compared with that obtained when a constant k-value for the polystyrene (EPS) insulation is adopted. A similar trend in the evolution of temperatures during the day and across the wall section was observed when EPS material with different moisture content was evaluated. For the polyurethane insulation, the inner surface temperature reached 44 °C when constant k-value was adopted, increasing to 48.5 °C when the k-value was allowed to vary under the same ambient conditions.

The influence of buffel grass (Cenchrus ciliaris) on biodiversity in an arid Australian landscape

2009 ◽  
Vol 31 (3) ◽  
pp. 307 ◽  
Author(s):  
A. Smyth ◽  
M. Friedel ◽  
C. O'Malley
Keyword(s):  
Community Dynamics ◽  
Functional Group ◽  
Ground Vegetation ◽  
Cenchrus Ciliaris ◽  
Native Flora ◽  
Buffel Grass ◽  
Hot Climate ◽  
Environmental Weed ◽  
Grazing Lands ◽  
Land Types

Buffel grass [Cenchrus ciliaris L. syn. Pennisetum ciliare (L.) Link] is an exotic species that has been widely planted in Australian arid and semi-arid grazing lands, and has become an important resource for livestock. It establishes readily and has expanded into such a diversity of land types beyond grazing lands that it is also regarded as a serious environmental weed. Although there is an abundance of literature on the production benefits of buffel grass, there is relatively little about its influence on native flora and fauna in arid Australia, particularly when its cover levels are low. This study attempted to clarify the influence of buffel grass and environmental patterns on the occurrence of ground vegetation, birds, reptiles and ants in a gneissic hill habitat in central Australia where buffel grass has encroached. Despite poor conditions for growth, we were able to distinguish the influence of buffel grass from that of other variables like overstorey cover, soil pH, fire and transect orientation. Cover of buffel grass did not exceed ~20% but it still accounted for a small amount of the variation in the composition of ground vegetation and birds, and of the ‘ground-dwelling’ bird guild and the ‘hot climate specialist’ functional group of ants. There were insufficient reptiles for analysis. We conclude that, even when cover is low, buffel grass can have a detectable influence on some aspects of community dynamics. Given the evidence from published literature and from this study, we expect the influence of buffel grass on the diversity of native flora and fauna to increase, particularly if buffel grass expands into land types previously thought unsuited to its environmental needs.

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