Temat: loss - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Livestock, livestock loss and livelihood: a note on Mishing char dwellers of Assam
Autorzy:: Saikia, Mrinal
Mahanta, Ratul
Tematy:: disaster loss
disease loss
economic loss
piggery; Pokaż więcej
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Powiązania:: https://bibliotekanauki.pl/articles/28408764.pdf Link otwiera się w nowym oknie
Opis:: The geography of char (the sandy land areas found within the river or lining at the bank) and their fertile lands create a suitable environment for livestock rearing, significantly contributing to livelihood, income, and nutritional intact for the char dwellers. The study investigates how livestock rearing and losses due to diseases and disasters are related to the livelihood and economy of the char-residing people, with a particular concentration on the Mishing char dwellers of Assam. The study considers two districts of Assam having char areas populated by the Mishing population. Both quantitative and qualitative tools are used to achieve the desired goals. Table and box plot figures are used to present the results. It is found that the loss of livestock is a serious threat to the economy of char dwellers. It contributes the most significant portion of their economic loss. It is also found that the severity is higher in case of disease loss of livestock than disaster loss. The study further suggests possible adaptation strategies for reducing livestock loss in the study area.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of the proximity and skin effects on copper loss in a stator core
Autorzy:: Młot, A.
Korkosz, M.
Grodzki, P.
Łukaniszyn, M.
Tematy:: end winding
copper loss
iron loss
ac loss
skin effect
proximity effect; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/141349.pdf Link otwiera się w nowym oknie
Opis:: Accurate prediction of power loss distribution within an electrical device is highly desirable as it allows thermal behavior to be evaluated at the early design stage. Three-dimensional (3-D) and two-dimensional (2-D) finite element analysis (FEA) is applied to calculate dc and ac copper losses in the armature winding at high-frequency sinusoidal currents. The main goal of this paper is showing the end-winding effect on copper losses. Copper losses at high frequency are dominated by the skin and proximity effects. A time-varying current has a tendency to concentrate near the surfaces of conductors, and if the frequency is very high, the current is restricted to a very thin layer near the conductor surface. This phenomenon of nonuniform distribution of time-varying currents in conductors is known as the skin effect. The term proximity effect refers to the influence of alternating current in one conductor on the current distribution in another, nearby conductor. To evaluate the ac copper loss within the analyzed machine a simplified approach is adopted using one segment of stator core. To demonstrate an enhanced copper loss due to ac operation, the dc and ac resistances are calculated. The resistances ratio ac to dc is strongly dependent on frequency, temperature, shape of slot and size of slot opening.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effect of a tillage system and plant cover on phosphorus and potassium losses due to surface runoff
Autorzy:: Chowaniak, M.
Niemiec, M.
Tematy:: phosphorus loss
potassium loss
no-tillage system
erosion; Pokaż więcej
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Powiązania:: https://bibliotekanauki.pl/articles/1192150.pdf Link otwiera się w nowym oknie
Opis:: The goal of the study was to evaluate the effect of a tillage system and plant cover on the intensity of P and K losses due to surface runoff in a six-year research period, taking into account tillage stages and development of the plant cover. A two-factor field experiment was carried out during the six-year research period. The investigated factors included no-tillage system (NT) and conventional tillage system (CT) as well as the cultivated plant: horse bean, spring wheat and winter oilseed rape. The results demonstrated that the content of P and K in the soil was 9.5% higher in the NT system than in the CT system. The NT system showed better soil-protection effectiveness preventing P and K losses from soil. Significant differences between the NT and CT systems were observed in the period without plant cover when soil in the CT system was subjected to tillage treatments, as well as in the period from sowing to 50% cover of soil by plants. It was observed that differences in P losses between the systems were lower in the initial period of the research than in the years that followed, namely the difference in 2008 was 11.6%, in 2009 57.3%, and from 59.5 to 65.4% in the years 2010-2013. Similar results were obtained for K, as the differences between the systems in in K losses were: 25.6% in 2008, 64.1% in 2009, and from 66.0 to 70.9% in the years 2010-2013. The investigated plants can be ranked according to soil-protection properties in the following order, starting from the most effective one: winter rape>spring wheat>horse bean.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Reflectometric measurements of thermally expanded core area
Autorzy:: Ratuszek, M.
Zakrzewski, Z.
Majewski, J.
Tematy:: loss measurement
optical fiber splicing
reflectometry
splicing loss; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/200633.pdf Link otwiera się w nowym oknie
Opis:: In this work an analysis method of one-way optical time domain reflectometer (OTDR) measurements has been presented. This method uniquely confirms mode field radii matching in diffusion transit area of the thermally expanded core (TEC) of thermally connected single mode telecommunication fibers. A comparison of reflectometric measurements with theoretical calculations of losses in TEC areas has been demonstrated.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Bayesian and Non Bayesian Method of Estimation of Scale Parameter of Gamma Distribution under Symmetric and Asymmetric Loss Functions
Autorzy:: Gupta, Isha
Gupta, Rahul
Tematy:: Bayes Estimator
Linex Loss Function
Precautionary Loss Function
Risk Function
Squared Error Loss Function; Pokaż więcej
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Powiązania:: https://bibliotekanauki.pl/articles/1177726.pdf Link otwiera się w nowym oknie
Opis:: In this investigation, we consider Bayesian and Non-Bayesian estimation problems of unknown scale parameter of Gamma distribution assuming the shape parameter as known and derive Bayes and Classical (Non-Bayes) estimators of the scale parameter. Bayes estimators are obtained under symmetric (squared error) and asymmetric (linex and precautionary) loss functions using a non-informative prior. The risk efficiency of Bayes estimators is also obtained under these loss functions. Finally, the simulation study is done to compare the performance of these estimators using MATLAB software.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Analiza strat wody na podstawie wskaźników zalecanych przez international water association
Analysis of losses water based on indicators recommended by international water association
Autorzy:: Merc, K.
Kędzia, W.
Ociepa, E.
Tematy:: analiza strat wody
straty wody
straty nieuniknione
wskaźniki strat wody
analysis of the loss of water
water loss
loss inevitable indicators loss water; Pokaż więcej
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/127386.pdf Link otwiera się w nowym oknie
Opis:: Straty wody w systemach wodociągowych często stanowią bardzo wysoki procent wody wtłaczanej do sieci. Już na etapie projektowania zakłada się nieuniknione straty wody, jednak bardzo często w rzeczywistości są one znacząco wyższe od założonych. Podejmowanie działań modernizacyjnych czy remontów mających na celu ograniczanie wycieków powinno zostać poprzedzone szczegółową analizą strat wody w systemie dystrybucji. W artykule przeanalizowano możliwości wyznaczenia zalecanych przez międzynarodowe stowarzyszenie wodne (International Water Association - IWA) wskaźników strat wody, takich jak Infrastructure Leakage Index (ILI), the water volume-profit (NRWB), Unavoidable Annual Real Losses (UARL), Real Leakage Balans (RLB). Wskazano utrudnienia w ocenie strat, którymi są często niekompletne i mało dokładne dane przedstawiane przez zakłady, a które są niezbędne do obliczenia zalecanych wskaźników strat wskazujących na stan eksploatowanego systemu dystrybucji.
Water loss in water supply systems often represent a very high percentage of water a press-fit to the network. Already at the design stage involves the inevitable loss of water, but very often they are in fact significantly higher than assumed. Taking action modernization or renovation aimed at reducing leaks should be preceded by a detailed analysis of water losses in the distribution system. The article analyzes the possibility of setting recommended by the International Association Water (International Water Association - IWA) indicators water losses such as the Infrastructure Leakage Index (ILI), the water volume-profit (NRWB) Unavoidable Annual Real Losses (UARL), Real Leakage Balance (RLB). Indicated difficulties in assessing damage, which are often incomplete and inaccurate data presented by the companies, and which are necessary to calculate the recommended rates of loss indicating the state operated distribution system.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: Sudden sensorineural hearing loss during pregnancy. A case study and literature review
Autorzy:: Grochowska, Barbara
Głuszko, Katarzyna
Koniewska, Anna
Zięba, Natalia
Misiołek, Maciej
Tematy:: glucocorticosteroids
pregnancy
sudden hearing loss
sudden sensorineural hearing loss; Pokaż więcej
Wydawca:: Index Copernicus International
Powiązania:: https://bibliotekanauki.pl/articles/58909257.pdf Link otwiera się w nowym oknie
Opis:: Introduction: Sudden sensorineural hearing loss (SSNHL) is defined as the sudden onset of hearing loss of 30 dB or more, across three consecutive frequencies in a pure-tone audiogram occurring within a 72-hour period. The term “sensorineural” indicates that the cause of the hearing loss lies in disturbances within the cochlea or auditory nerve. SSNHL typically presents as unilateral, transient hearing loss that occurs upon awakening. Bilateral hearing loss occurs in less than 2% of patients. Additionally, patients may report sensations of ear fullness or blockage, tinnitus, dizziness, nausea, and vomiting. Aim: Defining the management of SSNHL in pregnant women. Case report: This article describes the case of a 36-years-old pregnant woman who developed hearing impairment in the left ear in the third trimester along with tinnitus and balance disorders. Discussion: The occurrence of SSNHL in pregnant women is rare and not well understood. Majority of pregnant patients with SSNHL experienced the condition in second or third trimester. Key elements facilitating an accurate diagnosis include: interview and physical examination, hearing tests, balance evaluation, and imaging studies. The exact causes of SSNHL in pregnant women remain unknown. However, hormonal changes during pregnancy can have some contribution to development of this condition. Onset of SSNHL symptoms could resemble Ménière’s disease. Conclusions: Due to rare occurrence of SSNHL in pregnant women, there is no standardized approach to managing this medical issue. Given that most cases of SSNHL are classified as idiopathic, empirical treatment primarily involves steroids.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Energy loss coefficients ki in a displacement pump and hydraulic motor used in hydrostatic drives
Autorzy:: Maczyszyn, Agnieszka
Tematy:: hydrostatic drive
energy loss rate
pump
hydraulic motor
energy loss coefficients; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259211.pdf Link otwiera się w nowym oknie
Opis:: The article aims at defining and analysing the energy loss coefficients in design solutions of rotating displacement machines, with a piston machine as an example. The energy losses observed in these machines include mechanical loss, volumetric loss, and pressure loss. The scale and relations between these losses in different machines depend on machine design and manufacturing quality, and on operating parameters. The operating parameters, in turn, which affect directly or indirectly the above losses depend on whether the machine works in pump or hydraulic motor regime. The article is also a contribution to the development of a library of ki coefficients which define the losses in displacement machines, as the knowledge about these coefficients makes it possible to assess fast and easily the energy efficiency of a machine or drive system at each point of its working area.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 9.

Tytuł:: Gradual loss of vision and performing the role of father
Autorzy:: Czerwińska, Kornelia
Tematy:: visual impairment
vision loss
progressive vision loss
fatherhood
individual case study; Pokaż więcej
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Powiązania:: https://bibliotekanauki.pl/articles/941309.pdf Link otwiera się w nowym oknie
Opis:: Performing social roles, including family-related ones, by people with visual impairment is associated with experiencing various types of difficulties It is basically a consequence of the socially established negative image of these people who areperceived as not fully competent and requiring assistance. Previous few studies devoted to the motherhood of blind and partially sighted women indicate relatively frequent reactions of their social environment expressing the belief that a visually impaired woman is not able to perform her role as a wife and mother in a proper way. The psychosocial situation of fathers with visual impairment is rarely analysed in research activities, and knowledge of the relationship between gradual loss of vision and experience of fatherhood is relatively poor. The aim of the article is to present the results of a qualitative study focused on learning the subjective experience of performing the role of a parent by a man with progressive vision loss. In the biographical study of an individual case, the narrative interview technique was used, and the analysis of the collected material was referred to such spheres of experiencing fatherhood as: the concept of role, sources of satisfaction and positive experience related to the role, perceived relationships between the way of performing the role and progressive impairment.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Hair loss and the cosmetic and pharmacological treatment of this issue
Łysienie i produkty przeciw wypadaniu włosów
Autorzy:: Kasiarz, Katarzyna
Opis:: Niniejsza praca poświęcona jest problemowi wypadania włosów, jego rodzajom, przyczynom, diagnostyce, metodom kosmetycznym oraz sposobom leczenia farmakologicznego tego zagadnienia. Praca porusza bardzo ważną kwestię utraty włosów u ludzi, która w obecnych czasach ma duże znaczenie psychospołeczne i jest coraz częściej powodem wizyt w gabinetach kosmetologicznych i dermatologicznych.W pierwszej części pracy omówione zostały podstawowe informacje związane z włosami, przedstawiono ich ogólną charakterystykę, anatomię całego narządu włosowego oraz budowę włókna włosa i jego cykl życiowy, a w nim dokładny opis każdej z faz wzrostu i procesy, które nimi regulują.Następnie opisano przyczyny i rodzaje łysienia. Słowem wstępu przedstawione zostały możliwe przyczyny utraty włosów oraz ich podział ze względu na obszar wystąpienia choroby, fazy cyklu życiowego włosa, czy pojawiające się bliznowacenie skóry wyłysiałej. Opisano także wybrane ważniejsze jednostki chorobowe, w trakcie których dochodzi do utraty włosów m.in. męskie i kobiece łysienie androgenowe, czy łysienie spowodowane chorobami autoimmunologicznymi, jak łysienie plackowate.Zasadniczą część pracy stanowi opis dostępnych metod leczenia różnego rodzaju nadmiernego wypadania włosów. Uwzględniono tu: suplementację różnymi składnikami odżywczymi, farmakoterapię, metody fizykochemiczne, zabiegi chirurgiczne i niechirurgiczne, psychoterapię oraz nowe, eksperymentalne kierunki badań w tej dziedzinie.W zakończeniu zawarto zestawienie dostępnych metod leczenia oraz podsumowanie ich skuteczności.
This thesis is dedicated to the problem of hair loss, its kinds, causes, diagnostics and the cosmetic and pharmacological treatment of this issue. The thesis is about an important matter of hair loss of people, which, these days, has a great psychosocial importance and is more and more often the reason people visit beauty parlours and dermatological surgeries.In the first part of the thesis, basic information about hair is presented. General characteristics, anatomy, the structure and the life cycle of a hair is discussed together with an accurate description of each growth phase of a hair and the processes which regulate them.In the next part, the causes and kinds of alopecia are shown. Possible causes of hair loss and their divisions regarding the area where the symptoms appear, the phase of the life cycle of the hair and the cicatrisation of the skin are presented. More important diseases which cause hair loss, e.g. male and female androgenic alopecia or the alopecia caused by autoimmune diseases and alopecia areata are described.The fundamental part of this work is the description of accessible methods of treatment of different sorts of excessive hair loss. The supplementation with various nutrients, pharmacology, physicochemical methods, surgical and non-surgical methods, psychotherapy and new, experimental researches in this field were taken into consideration.In the final part, the set of accessible methods of treatment and the summary of their effectiveness are included.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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