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Wyszukujesz frazę "Hussain, M." wg kryterium: Autor


Tytuł:
Adjustment to target debt maturity and equity mispricing : evidence from Asia Pacific
Dostosowanie do docelowej wymagalności zadłużenia oraz nieprawidłowej wyceny wartości : dowody z Azji i Pacyfiku
Autorzy:
Hussain, H. I.
Hadi, A. R. A.
Mohamed-Isa, A.
Salem, M. A.
Kamarudin, F.
Jabarullah, N. H.
Powiązania:
https://bibliotekanauki.pl/articles/404704.pdf
Data publikacji:
2018
Wydawca:
Politechnika Częstochowska
Tematy:
debt maturity
target adjustment behavior
speed of adjustment
capital structure
Asia Pacific region
dojrzałość długu
zachowanie dostosowania celu
szybkość dostosowań
struktura kapitałowa
region Azji i Pacyfiku
Opis:
This paper examines firms’ target adjustment behavior for debt maturity structure for selected countries from the Asia Pacific region. The literature documents that managers’ structure debt issues in line with a target maturity structure which is limited by transactions costs, information asymmetry, agency problems, liquidity needs as well as institutional factors. Our paper contends that firms adjust to target levels at differing rates based on whether the current maturity structure is above or below target levels as well as equity mispricing. We estimate the target debt maturity based on the lead level and measure speed of adjustment to target levels by regressing the difference between the simulated and actual values. Our findings indicate that firms which are below target debt maturity tend to adjust at more rapid rates during periods of overvaluation. Firms which are above target debt maturity tend to adjust at more rapid rates during periods of undervaluation. Our findings indicate asymmetric adjustment rates indicating that debt maturity structure serves as an important tool for signaling. The implications provide a better understanding on the impact of debt maturity on information asymmetry leading to differences in adjustment to target debt maturity structures.
W niniejszym artykule przeanalizowano zachowanie firm w zakresie dostosowań docelowych dla struktury zapadalności długu dla wybranych krajów z regionu Azji i Pacyfiku. W literaturze udokumentowano, że struktura zarządzania zadłużeniem jest zgodna z docelową strukturą zapadalności, która jest ograniczona przez koszty transakcji, asymetrię informacji, problemy agencji, potrzeby płynności oraz czynniki instytucjonalne. Stwierdzono, że firmy dostosowują się do poziomów docelowych przy różnych stawkach w zależności od tego, czy obecna struktura zapadalności jest powyżej lub poniżej poziomu docelowego, jak również z powodu niewłaściwej wyceny kapitału własnego. Oszacowano docelowy termin zapadalności długu na podstawie poziomu wiodącego oraz zmierzono szybkość dostosowania do poziomów docelowych poprzez regresję różnicy między symulowanymi a rzeczywistymi wartościami. Wyniki wskazują, że firmy, które nie osiągają docelowego poziomu zadłużenia, mają tendencję do szybszego dostosowywania stawek w okresach przewartościowania. Firmy, które przekraczają docelowy poziom zadłużenia, mają tendencję do szybszego dostosowywania stawek w okresach niedowartościowania. Wyniki wskazują na asymetryczne wskaźniki korygowania, które wskazują, że struktura terminów zapadalności służy jako ważne narzędzie sygnalizacji. Implikacje te zapewniają lepsze zrozumienie wpływu dojrzałości długu na asymetrię informacyjną prowadzącą do różnic w dostosowaniu do docelowych struktur zapadalności długu.
Źródło:
Polish Journal of Management Studies; 2018, 17, 2; 87-100
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity in morphological and physico-chemical characteristics of wild raspberry (Rubus idaeus L.) germplasm collected from temperate region of Azad Jammu and Kashmir (Pakistan)
Różnorodność biologiczna w morfologicznych i fizyko-chemicznych cechach materiału genetycznego maliny właściwej (Rubus idaeus L.) zbieranej w regionie umiarkowanym Azad Jammu i Kaszmiru (Pakistan)
Autorzy:
Ahmed, M.
Anjum, M.A.
Khaqan, K.
Hussain, S.
Powiązania:
https://bibliotekanauki.pl/articles/11542966.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
biodiversity
morphological characteristics
physicochemical characteristics
wild plant
raspberry
Rubus idaeus
germplasm
temperate region
Azad Jammu and Kashmir
Pakistan
Opis:
Wild raspberry (Rubus idaeus L.) is abundantly grown and widely distributed in temperate regions of lower Himalayan range which represents rich biological diversity for raspberry. Thirty accessions were explored from three different locations of Azad Jammu and Kashmir (Pakistan), several traits were visualized at sampling locations and some characteristics were evaluated and quantified after harvest of leaf and fruit samples. The accessions differed greatly in growth habit, blooming time, intensity of flowering, fruit setting, ripening time, productivity, fruit shape and color. Concerning quantitative characteristics, significant differences were found in plant height, leaf length and width, number of braches per plant, duration of flowering, fruit setting percentage, days to maturity, fruit length, width and weight among the samples collected from different locations. Ripe fruits were evaluated for their chemical composition i.e. moisture, carbohydrates, protein, fat, fiber, ash, TSS, acidity, pH and mineral (K, Ca, Na, Fe, Cu, Zn, Mn, Pb, and Cr) contents. The location also had significant effect on chemical composition of ripe fruits.
Malina właściwa (Rubus idaeus L.) jest często hodowana i szeroko rozprowadzana w umiarkowanych rejonach niższego pasma Himalajów, które reprezentuje bogatą różnorodność biologiczną malin. Zbadano trzydzieści próbek z trzech różnych miejsc Azad Jammu i Kaszmiru (Pakistan), dokonano wizualizacji kilkunastu cech w miejscach pobierania próbek oraz oceniono i ilościowo określono kilka cech po zebraniu próbek liści i owoców. Próbki znacznie różniły się wzrostem, czasem kwitnienia, intensywnością zakwitania, zawiązywaniem owoców, czasem dojrzewania, plonowaniem oraz kształtem i kolorem owoców. Jeśli chodzi o cechy ilościowe, to stwierdzono istotne różnice w wysokości roślin, długości i szerokości liści, liczbie gałązek na roślinie, długości kwitnienia, procencie zawiązywanych owoców, liczbie dni do dojrzałości, długości owoców, szerokości i wadze pomiędzy próbkami zebranymi z różnych stanowisk. Dojrzałe owoce oceniono pod względem składu chemicznego, tzn. wilgotności, zawartości węglowodanów, białka, tłuszczu, błonnika, popiołu, TSS, kwasowości, pH oraz zawartości minerałów (K, Ca, Na, Fe, Cu, Zn, Mn, Pb oraz Cr). Stanowisko także miało istotny wpływ na skład chemiczny dojrzałych owoców.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2014, 13, 4; 117-134
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Boundary layer flow of magneto-micropolar nanofluid flow with Hall and ion-slip effects using variable thermal diffusivity
Autorzy:
Bilal, M.
Hussain, S.
Sagheer, M.
Powiązania:
https://bibliotekanauki.pl/articles/202030.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Hall effect
nanofluid
ion-slip effect
magneto-micropolar fluid
shooting method
Efekt Halla
płyn mikropolarny
Opis:
In the present article, magneto-micropolar nanofluid flow with suction or injection in a porous medium over a stretching sheet for the heat and mass transfer is analyzed numerically. Both Hall and ion-slip effects are considered along with variable thermal diffusivity. The governing partial differential equations are transformed to ordinary differential equations using usual similarity transformations. These coupled non-linear differential equations are solved using the shooting method. Effects of prominent parameter on velocities, temperature and concentration are discussed graphically. Numerical values of skin-friction coefficient, local Nusselt number and local Sherwood number are also tabulated and discussed.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 3; 383-390
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative evaluation of different techniques for herniorrhaphy in calves
Autorzy:
Fatima, A.
Arif Khan, M.
Aslam, S.
Ashraf, K.
Khalid Mahmood, A.
Asif, M.
Shah, S.
Hussain, N.
Powiązania:
https://bibliotekanauki.pl/articles/16539145.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
calves
mesh application
suture material
umbilical hernia
Opis:
Umbilical hernia is one of the most common problems in young calves. This problem occurs in dairy sector as well as in the local farmers. Present study was conducted to compare outcomes of four different techniques of herniorrhaphy. Twenty four young calves (n=24) were divided in 4 groups (A, B, C, and D) which underwent four different surgical techniques. Group A underwent vicryl plus suture material and pants-over-west technique, Group B underwent mesh application with Dexon suture material by using simple interrupted suture pattern, Group C underwent closed method with Nylon No. 3 suture material by using vertical mattress suture pattern and Group D underwent clamp application method with Silk No. 2 suture material by using simple interrupted suture pattern. The result showed that mesh application method was comparatively better with respect to feed intake, body weight gain and healing time. There was no reoccurrence with non-significant hematological changes (p≤0.05). It is concluded that mesh application method is safer than other three techniques and there are no systemic effects of this surgical intervention on calves’ health.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 2; 207-212
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of conventional methods with commercially available topical hemostat surgical snow (oxidized cellulose) for achieving hemostasis in canine model of partial splenectomy
Autorzy:
Zahir, M.
Akbar, H.
Akhtar, R.
Imran, S.
Hussain, N.
Rasheed, H.
Sajjad, T.
Asif, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087172.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bleeding time
dogs
electrocautery
hematobiochemical parameters
partial splenectomy
Surgicel®
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 2; 281-286
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of chilling exposure and vapor heat treatment duration on the quality of sweet orange during simulated marketing
Autorzy:
Hussain, I.
Rab, A.
Khan, N.U.
Sajid, M.
Ali, N.
Khan, S.M.
Ali, S.
Powiązania:
https://bibliotekanauki.pl/articles/11543553.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Sweet orange fruits were exposed to vapor heat treatment (50°C) in water bath for 0, 5, 10, 15 and 20 min in plastic covered structure. The data were recorded on different physico chemical factors immediately after the storage and after seven days simulated marketing under ambient condition (20°C). Low temperature storage enhanced weight loss, surface pitting, disease incidence, total soluble solids accumulation, TSS/Acid ratio but decreased reducing sugars, acidity and ascorbic acid content. Chilling exposure up to 45 days had no significant effect on weight loss and TSS. However, increased weight loss (2.63%), TSS (11.75), TSS/Acid ratio (8.45 ºBrix), disease incidence (8.93%) and lowest reducing sugars (3.90) were noted in sweet orange exposed to chilling temperature for 75 days. Among the VHT durations, the highest weight loss (2.29%) was found in VHT for 0 min while the highest TSS (11.81 ºBrix), TSS/Acid ratio (8.10) and disease incidence (6.22%) and least reducing sugars (4.12%) were found in VHT 20 for min. Vapor heat treatment ranging from 5–10 min resulted in lowest weight loss (1.79%), TSS (10.81 ºBrix) TSS/Acid ratio (7.33), disease incidence (1.00%) and highest reducing sugars (4.75%) in sweet orange fruits. However, non-reducing sugars were least affected by both LTSs and VHTs. It is concluded that the chilling exposure (5°C) beyond 45 days aggravated the decline of fruit physio-chemical quality characteristics. Whereas, VHT with 5–10 min maintained the sweet orange fruit quality during simulated marketing; however, VHT of 15–20 min adversely affected the sweet orange fruit quality attributes.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 5; 39-47
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Laser Pulse Energy on the Optical Properties of Cu₂O Films by Pulsed Laser Deposition
Autorzy:
Aadim, K.
Hussain, A.
Abdulameer, M.
Powiązania:
https://bibliotekanauki.pl/articles/1401906.pdf
Data publikacji:
2015-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Fg
Opis:
In this work copper oxide films (Cu₂O) were grown by pulsed laser deposition. The films were analyzed by X-ray diffraction and their thickness by using profilometer while the UV-VIS absorption spectra were recorded by using UV-VIS spectrometer. Pulsed Nd:YAG laser was used with varying its pulse energy, with distance between target and substrate 1 cm, and substrate temperature at room temperature, vacuum pressure was fixed at 6×10¯² mbar, number of pulses = 1000. The optical properties of as-grown film like energy gap has been measured experimentally and the effects of laser pulse energy on it were studied. There is linear relation between energy gap and pulse energy. The specific energy gap of Cu₂O film can be controlled by changing laser pulse energy and fixing other pulsed laser deposition parameter such as substrate temperature, distance between target and substrate, background pressure and number of pulses.
Źródło:
Acta Physica Polonica A; 2015, 128, 3; 419-422
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of operating parameters on production of bio-oil from fast pyrolysis of maize stalk in bubbling fluidized bed reactor
Autorzy:
Ali, N.
Saleem, M.
Shahzad, K.
Hussain, S.
Chughtai, A.
Powiązania:
https://bibliotekanauki.pl/articles/779892.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
fast pyrolysis
bio-oil
temperature
particle size
carrier gas flow rate
maize stalk
Opis:
The yield and composition of pyrolysis products depend on the characteristics of feed stock and process operating parameters. Effect of particle size, reaction temperature and carrier gas flow rate on the yield of bio-oil from fast pyrolysis of Pakistani maize stalk was investigated. Pyrolysis experiments were performed at temperature range of 360-540°C, feed particle size of 1-2 mm and carrier gas flow rate of 7.0-13.0 m3/h (0.61.1 m/s superficial velocity). Bio-oil yield increased with the increase of temperature followed by a decreasing trend. The maximum yield of bio-oil obtained was 42 wt% at a temperature of 490°C with the particle size of around 1.0 mm and carrier gas flow rate of 11.0 m3/h (0.9 m/s superficial velocity). High temperatures resulted in the higher ratios of char and non-condensable gas.
Źródło:
Polish Journal of Chemical Technology; 2016, 18, 3; 88-96
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of water stress and planting system on growth, yield and quality of sweet potato
Autorzy:
Saqib, M.
Khalid, M.F.
Hussain, S.
Anjum, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/11543590.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Sweet potato (Ipomoea batatas (L.) Lam) is an important crop due to its cultivation as staple food for millions of small farmers as well as for poor people in Latin America, Asia, Africa and in many other parts of the world. This tuberous crop is susceptible to drought stress especially during the period of crop establishment as well as vine development and tuber initiation. Yield of the crop vary widely among farmers due to improper planting systems. This current study was aimed to investigate the influence of various irrigation intervals and planting systems on vegetative growth, storage root yield and quality of sweet potato (Ipomoea batatas (L.) Lam) cv. ‘White star’ under field conditions. Three irrigation intervals (7, 14 and 21 days for summer crop, and 14, 28 and 42 days for winter crop) and two planting systems (bed planting and ridge planting) were adopted in this study. Vine length, number of branches and average leaf area significantly reduced as the irrigation interval was increased. Ridge planting produced longer vines with greater leaf area in winter crop as compared to bed planting. Yield parameters (storage root length, storage root diameter, number and fresh weight of marketable roots per plant) were directly linked with vegetative growth especially in summer crop. Under water stress conditions, as vegetative growth decreased storage root yield was also reduced. However, yield attributes were not affected by the planting systems. Vitamin C content decreased with water stress, whereas total soluble solids (TSS) and leaf proline content significantly increased with water stress in summer crop. Ridge planting also resulted in increased leaf proline content in summer crop. It is concluded that for attaining good vegetative growth and storage root yield, sweet potato should be irrigated at an interval of 7 days during summer and 14 days during winter crop and planted on ridges.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 6; 201-210
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancement in cotton (Gossypium hirsutum L.) crop yield by water use efficiency under various planting techniques
Autorzy:
Ali, L.
Anum, W.
Hussain, G.
Shahid, M.I.
Powiązania:
https://bibliotekanauki.pl/articles/9999.pdf
Data publikacji:
2017
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
cotton
Gossypium hirsutum
crop yield
water use efficiency
planting technique
water saving
Opis:
Six experiments were conducted for the enhancement in seed cotton yield by increasing water use efficiency and water savings in case of different planting methods of cotton (Gossypium hirsutum L.) crop during the years 2014 & 2015, at three different locations in cotton zone of Punjab (Pakistan) province. The planting methods were, flat planting and no earthing up, flat planting and earthing up after 1st irrigation, flat planting and alternate row earthing after 1st irrigation, flat planting in 112.5/37.5 cm apart paired rows and earthing up after 1st irrigation, ridge planting and bed planting. Cotton crop obtained a maximum benefit from the available water at all three locations in case of flat planting with alternate row earthing up (P3) by predicting a maximum water use efficiency up to 6.79 kg ha-1 mm-1and maximum seed cotton yield of 3432.50 kg ha-1. Maximum water savings of 25.60% was recorded in the same method (P3) during the year 2014, while minimum (-0.17%) was observed in ridge planting (P5) at location number 1 in the same year.
Źródło:
Environment, Earth and Ecology; 2017, 1, 2
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Entropy generation and squeezing flow past a Riga plate with Cattaneo-Christov heat flux
Autorzy:
Atlas, M.
Hussain, S.
Sagheer, M.
Powiązania:
https://bibliotekanauki.pl/articles/202419.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nanowłókna
konwekcyjne warunki brzegowe
strumień ciepła Cattaneo-Christova
generowanie entropii
squeezing flow
Riga plate
nanofluids
convective boundary conditions
Cattaneo-Christov heat flux
entropy generation
Opis:
In this article, we investigate the convective heat transfer of the two-dimensional unsteady squeezing flow past a Riga plate. To examine the heat transfer, Cattaneo-Christov heat flux model is used. Influence of entropy generation on heat transfer has been investigated numerically. With the help of suitable similarity transformation, the governing partial differential equations (PDEs) are converted into ordinary differential equations (ODEs). The obtained system of non-linear ordinary differential equations subject to the convective boundary conditions is solved by the shooting method using the computational software MATLAB. To strengthen the reliability of the results obtained by the shooting method, the MATLAB built-in function bvp4c has been used. The graphs show the effect of different physical parameters for velocity, temperature, concentration and tables are presented to observe the behaviour of skin friction and sherwood number under the influence of certain physical parameters. It is observed that for increasing values of thermal relaxation parameter, the temperature profile increases and an opposite behaviour is shown for the concentration profile. Moreover, with an increase in the Brinkman number, the entropy generation increases.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 3; 291-300
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ethnobotanical investigation of significant seasonal medicinal weeds of Toba Tek Singh District, Punjab, Pakistan
Autorzy:
Tufail, M.
Hussain, K.
Nawaz, K.
Iqbal, I.
Arshad, N.
Shahzadi, A.
Javed, A.
Nazeer, A.
Bashir, Z.
Qurban, M.
Zeb, J.
Ali, S.S.
Powiązania:
https://bibliotekanauki.pl/articles/2049359.pdf
Data publikacji:
2021
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
weeds
ethnobotany
flora
survey
chwasty
etnobotanika
badanie
Opis:
Introduction: Medicinal plants are found throughout the world but most are considered weeds. They are – directly or indirectly – the major source of medicines in pharmaceutical and herbal industries. Formulations used to prepare medicines or the method of use for these plants are mainly based on folk or traditional knowledge. This folk knowledge is not documented in many areas and needs to be explored. Objectives: This study was aimed to enlist the seasonal weed species with traditional medicinal usage in Toba Tek Singh District, Punjab, Pakistan. Methods: Field surveys were arranged in winter and summer 2019–2020 to enlist the important medicinal weeds and traditional knowledge of the local community. Data collected were as follows: local name of weed, medicinal use, method and part used. Results: Numerous wild perennial, biennial and annual plants were identified, 30 of them were ethnomedicinally important in the local community. They were grouped in 16 families. It was found that whole weed is used in many prescriptions (37%). Achyranthes aspera L. (Amaranthaceae) was the most common weed used in treating fevers, respiratory problems and asthma. Cichorium intybus L. (Asteraceae) was used in summer drinks to reduce thirst, improve digestion and liver function. Chenopodium album L. (Amaranthaceae) was used with 0.71 UV and 0.147 RFC values. Medicago polymorpha L. (Fabaceae) was used to treat kidney, intestinal and bladder infections. Its UV was 0.65 and RFC was 0.121. Tribulus terrestris L. (Zygophyllaceae) was used in impotency treatment, and in the removal of kidney stones and urinary tract infections treatment. It has 0.63 UV and 0.21 RFC values. This weed also showed the highest Fidelity Level (FL) (77%), as compared to other weeds. Conclusion: It was concluded that there are many significant medicinal weeds in the Toba Tek Singh District, Punjab, Pakistan that are used in traditional medicines in treating various disorders. These plants also showed herbal or pharmacological importance that can be used to develop medicine at commercial scale.
Źródło:
Herba Polonica; 2021, 67, 2; 29-38
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental and numerical determination of apparent mass variation of granular media confined in silo geometry
Autorzy:
Qadir, Abdul
Ispalove, Nurlybek
Ali, Asim
Chand, R.
Shah, M.
Khan, Asif
Hussain, Kashif
Powiązania:
https://bibliotekanauki.pl/articles/1070521.pdf
Data publikacji:
2016-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
83.80.Fg
45.70.Cc
45.70.-n
Opis:
Granular materials have vast applications both in industry and in daily life. They display quite interesting and exceptional properties different from the other known forms of matter. To investigate the complex properties of particulate materials, experimental, analytical, and numerical techniques have been employed. In this paper the results of experimental and numerical tests of various grain sizes and coefficient of friction between granules and cylindrical walls on the mass measured at bottom of container, known as apparent mass, are reported. It is revealed that apparent mass augments with the grain size. Moreover, it is also found that the variation in apparent mass measurement is strongly dependent on bead diameter rather than the silo size. The results suggest that the conversion of vertical stresses into horizontal in silo is mainly due to the friction between the grain and system boundary than the arching phenomenon.
Źródło:
Acta Physica Polonica A; 2016, 129, 3; 378-382
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foliar application of potassium improves fruit quality and yield of tomato plants
Dolistne zastosowanie potasu poprawia jakość owoców i plon roślin pomidora
Autorzy:
Afzal, I.
Hussain, B.
Basra, S.M.A.
Ullah, S.H.
Shakeel, Q.
Kamran, M.
Powiązania:
https://bibliotekanauki.pl/articles/11543263.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
potassium fertilization
foliar application
fruit quality
fruit
yield
tomato plant
Lycopersicon esculentum
Opis:
Tomato is well known regarding its quality and nutritional value in all over the world but imbalances of fertilizer nutrients severely affect the quality of tomato. To investigate the specific contribution of potassium to yield and quality of tomato, a field experiment was conducted on two tomato cultivars, Nagina and Roma. Foliar application with varying levels (0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1.0%) of potassium solutions was applied to the plants and compared with control (without K). Exogenous application of 0.6% K significantly improved plant height, lycopene content, potassium, fruit weight and diameter. Exogenous application of 0.5, 0.6 and 0.7% K maximally improved ascorbic acid contents of both tomato cultivars whereas 0.4 and 0.8% did not improve ascorbic acid contents. Due to positive correlation between K nutrition and fruit quality attributes, exogenous application of an appropriate K level can contribute to higher yield and better quality of tomato fruits. Among all potassium levels, 0.5–0.7% K maximally improved performance of tomato plants of both cultivars.
Pomidor to dobrze znane na całym świecie źródło składników odżywczych, ale brak równowagi substancji odżywczych w nawozach wpływa na jego jakość. Doświadczenie polowe przeprowadzono na dwóch odmianach pomidora, Nagina i Roma, w celu zbadania wpływu potasu na plon i jakość pomidora. Roztwory potasu w różnych dawkach (0,1; 0,2; 0,3; 0,4; 0,5; 0,6; 0,7; 0,8; 0,9 oraz 1,0%) zastosowano dolistnie i porównano z kontrolą (bez K). Egzogenne zastosowanie 0,6% K istotnie poprawiło wysokość roślin, zawartość likopenu, zawartość potasu, a także wagę i średnicę owoców. Egzogenne zastosowanie 0,5, 0,6 i 0,7% K maksymalnie poprawiło zwartość kwasu askorbinowego w obydwu odmianach, natomiast zastosowanie 0,4 i 0,8% nie wywołało takiego efektu. Ze względu na pozytywną korelację między odżywianiem K a jakością owoców, egzogenne zastosowanie właściwego poziomu K może przyczynić się do wyższego plonu i lepszej jakości owoców pomidora. Spośród wszystkich poziomów potasu, 0,5–0,7% K w sposób maksymalny poprawiał wydajność roślin pomidora obu odmian.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2015, 14, 1; 3-13
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foliar application of salicylic acid with salinity stress on physiological and biochemical attributes of sunflower (Helianthus annuus L.) crop
Autorzy:
Noreen, S.
Siddiq, A.
Hussain, K.
Ahmad, S.
Hasanuzzama, M.
Powiązania:
https://bibliotekanauki.pl/articles/11543526.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The potential agricultural lands are falling prey to salinity in the world over including Pakistan. The limited water supply is also becoming a serious problem to feed the humans and livestock production. Therefore, research studies were undertaken to enhance the growth and development of sunflower (Helianthus annuus L.) on saline soils to increase productively of crop. The treatments consisted of (a) two lines of sunflower (Hysun-33 and LG-56-63), (b) two levels of salinity (0, 120 mM (NaCl)) and (c) two levels of salicylic acid (0, 200 mg L-1) and were arranged in a completely randomized design with four replications. The results showed that biological yield was significantly reduced due to imposition of salinity at the rate of 120 mM (NaCl) on both sunflower lines (Hysun -33, LG 56-63). The stem length was also reduced due to decrease in biological yield in response to salinity. However, the exogenous application of salicylic acid at the rate of 200 mg L-1 mitigated the adverse effects of salts and improved the biological yield and stem length under saline and non-saline environments. The quantity of chlorophyll (SPAD) values were impacted negatively in response to salt stress, however, the phenomenon was recovered by foliar spray of salicylic acid. The nutrient concentration of K+, Cl- and Na+ were altered because of presence of excess quantity of NaCl in the substrate. The translocation of K+ ion was reduced substantially, while higher amount of Na+ and Cl- ions were absorbed, thus creating ionic imbalance in the plant system. The foliar spray of salicylic acid (200 mg L-1) enhanced the uptake of K+ from the soil medium. The salicylic acid proved a potential phytoprotectant to mitigate the adverse effects of salinity and thereby improving the physiological and biochemicals attributes, stem length and also enhanced uptake of K+ ion while depressing Na+ and Cl- ions in plant system.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 2; 57-74
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł

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