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Tytuł:
Wezwania kościołów parafialnych w diecezji krakowskiej w końcu XVI w.
The Invocations of Parochial Churches on the Territory of the Cracow Diocese at the End of the 16th c.
Autorzy:
Szymański, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/1964471.pdf
Data publikacji:
1993
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Opis:
At the end of the 16th c. on the territory of the Cracow diocese (according to the then visitation reports) there were 893 parochial and affiliated churches there. We have worked out the patrocinia (?) for 879 temples. The invocations of 14 churches are as yet unknown. We find 4 types of patrocinia: Trinitarian, Marian, Angelic and the patrocinia of the saints. Within these 4 types there have been found 68 various kinds of invocations, including: 6 kinds of Trinitarian invocations, which were dedicated to 64 temples (7.2% of the total), 7 kinds of Marian titles, which we encounter in 85 temples (2.8%) and 54 invocations which refer to the saints, under whose care 656 (73.4%) churches were given. Among the latter there are 50 titles of the saints of the Catholic Church (579 churches) and 4 kinds of the titles of Polish saints (77 churches). We notice that the numbers which characterize the incidence of patrocinia are markedly irregular, they range from 1 to 74. Almost two thirds of the total invocations (46 kinds) cherished little publicity. They crop up in the Cracow diocese not more than 9 times (that is not more than in 1% of the churches). We have included 19 invocations in the most popular ones (i.e., they occur in 19 to 74 cases). These are the titles: St Nicholas (74 churches), Assumption (64), All Saints (58), John the Baptist (52), Nativity of Mary (47), St Martin (40), St Bartholomew (38), St Catherine and St Stanislaus (37 each), St Adalbert (34), St Mary Magdalene (29), SS Peter and Paul (28), St Jacob (27), St Michael the Archangel and St Andrew (25 each), St Bartholomew, St. Wawrzyniec (21), Holy Trinity and St. Margaret (22 each) and St. Cross (19 churches). In 46 churches we find complex invocations: 41 two-element patrocinia, 4 patrocinia consisting of three elements and 1 church dedicated to four patrons. In total we have noted 29 various kinds of titles, out of which the majority (23 kinds) were used as co-patrocinia only in one or two cases. To patrocinia which most often occur as the complex titles belonged the following: St. Catherine ( 5 temples), St. Margaret (4), St. Nicholas, St Mary Magdalene and St. Matthew (3 each). We rarely find temples dedicated to the same 2 or 3 saints, that is why it is difficult to determine whether there were any regularities in choosing a few patrocinia. We can only note that in the complex patrocinia there were combined either invocations to saints with invocations to other saints (ca. in half of the cases), or to invocations higher in hierarchy (Trinitarian, Marian or Angelic) were added the invocations to the Saints of the Lord (almost the other half of churches). We have up to now referred the invocations from the later period to the moment of the establishment of a parish and church. We have made two comparisons, in order to discriminate whether this manner of procedure is justifiable: 1) The data on the invocations from the 16th-century visitations contained in J. Długosz's Liber beneficiorum have been compared. In the majority of churches (in 320 out of 416 under comparison, i.e., in 77%) the invocations were left unchanged. The differences in the writing of the invocations in 96 temples are, above all, minute changes and bear little significance (the difference in the number of the elements of complex invocations or different varieties of titles concerning the same object of cult). There is a considerable change in invocations in 39 temples (in ca. 9%). 2) The invocations from 29 churches (the second half of the 15th c. and the end of the 16th c.) built on the territory under survey have been compared with the data on the patrocinia from the earlier period. The titles were not changed in 18 churches (ca. 62%), in 5 temples (17%) we have found changes of lesser importance; we can, however, speak about some significant differences in the case of 6 churches (21%). In the light of the comparisons we may state that the titles of the majority of parochial temples did not undergo any general changes over the Middle Ages up to end of the 16th c. We recognize them as a constant element characterizing a given church, and as a phenomenon rather stable in its nature. Having confronted various sources, we came up with the following conclusions: 1) 16th-century churches dedicated to SS Peter and Paul which stem out of the early Middle Ages were initially most probably dedicated to the single title of St. Peter. The tendency to replace one title for two, that is that of SS Peter and Paul, becomes apparent from the end of the 13th c. 2) Up to the 14th c. only the Marian churches bore the general personal title of the Blessed Virgin Mary. These invocations recalled the Marian mysteries (Assumption, Nativity, Visitation, Annunciation or the Purification of the Blessed Virgin Mary) appeared as late as the 15th c. and started to replace the primary general titles of the Mother of God. Until 1326 150 temples had been founded on the territory under survey (prep. (?) Wiślica and Kielce, Oświęcim decanate and arch. Lublin and Nowy Sącz). They were endowed with 34 different types of patrocinia. The most essential titles are: the Blessed Virgin Mary, John the Baptist, Peter and Paul (mainly the primary churches of St. Peter), St. Adalbert, St. Jacob, St. Michael, and partly St. Martin and St. Stanislaus. In the latter group 27 temples have been discriminated. The time of their erection may be the 11th - 12th c. 14 kinds of invocations were related to them, out of which the most characteristic of the earliest stage of Polish Christianity are the following titles: the Blessed Virgin Mary, St. Peter, St. Adalbert, St. John the Baptist and perhaps also: St. Jacob, St Bartholomew, St Idzi, St Leonard, St. Nicholas and St Michael Between 1326 and 1470 there were founded 118 churches on the territory under survey. These churches bore 36 types of titles. The most important are the invocations: Nativity and Assumption of the Blessed Virgin Mary, St Margaret and St. Catherine and the Holy Trinity, St. Cross,. Corpus Christi and the Holy Ghost. The patrocinia of St. Nicholas and All Saints, which came early on the Polish territories, were also popular in both time intervals (up to 1326 and between 1326 and 1470).
Źródło:
Roczniki Humanistyczne; 1993, 41, 2; 83-159
0035-7707
Pojawia się w:
Roczniki Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synchronous occurrence of multiple focal nodular hyperplasia and huge hepatic Perivascular epithelioid cells tumor (PEComa) in young woman after oral contraceptive use – is there a common pathogenesis?
Autorzy:
Durczyński, Adam
Hogendorf, Piotr
Szymański, Dariusz
Sporny, Stanisław
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1396820.pdf
Data publikacji:
2012-10-01
Wydawca:
Index Copernicus International
Tematy:
liver
perivascular epithelioid cells tumor
focal nodular hyperplasia
oral contraceptive
Opis:
The association of focal nodular hyperplasia (FNH) and various neoplasms was described, but coincidence of multiple FNH and hepatic perivascular epithelioid cells tumor (PEComa) has not been reported. The clinical debate of oral contraceptive (OC) influence on FNH growth is ongoing, but no evidence exists about association of hepatic PEComa with OC use. Herein, we report a case of two FNH lesions and huge (150x100x80 mm) left hepatic lobe PEComa that occurred simultaneously in 18-year-old female with previous two year history of OC use, who underwent left hemihepatectomy and right hepatic FNH enucleation. Up to date, the patient has been followed-up for 65 months and remained disease-free. FNH and PEComa have a common vascular cytogenetic denominator. Our case raising a question of a causal relationship of FNH and PEComa with OC use that might be attributed to vascular changes. Future researches of larger sample sizes should further address this issue.
Źródło:
Polish Journal of Surgery; 2012, 84, 9; 457-460
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jednoetapowa alloplastyka przepukliny pooperacyjnej z abdominoplastyką u chorych po operacji ominięcia żołądka – ocena wyników
Autorzy:
Iljin, Aleksandra
Antoszewski, Bogusław
Zieliński, Tomasz
Skulimowski, Aleksander
Szymański, Dariusz
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1392922.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
chirurgia bariatryczna
abdominoplastyka
jakość życia
Opis:
Cel: 1. Ocena wyników leczenia pacjentów po jednoczasowej plastyce przepukliny w bliźnie pooperacyjnej (Incisional Hernia Repair - IHR) sposobem onlay i abdominoplastyce u pacjentów po operacji ominięcia żołądka - RYGB ze znaczną utratą masy ciała. 2. Określenie różnic zmian jakości życia (Quality of Life - QL) u chorych bariatrycznych przed i po zabiegu konturującym. Materiał i metody: Analizą kliniczną objęto 20 chorych ze zniekształceniem powłok brzucha (po zabiegu RYGB i redukcji masy ciała) poddanych jednoetapowej IHR i abdominoplastyce. Oceniono wyniki operacyjnego leczenia, a także zmiany QL chorych przed i po operacji konturującej powłoki brzuszne (skale DAS24 i SF-36) w porównaniu do stanu przed zabiegami operacyjnymi. Wyniki: Powikłania w gojeniu rany (zakażenie, miejscowa martwica) i zapalenie płuc stwierdziliśmy u 2 osób, obecność surowiczaka u dwóch, natomiast zaburzeń czucia u czterech chorych. Po każdym etapie leczenia chirurgicznego stwierdzono poprawę QL we wszystkich jego aspektach. Wnioski: 1. Jednoczasowa operacja przepukliny brzusznej sposobem onlay z abdominoplastyką jest bezpieczną metodą poprawiającą funkcjonowanie pacjentów. 2. Wszystkie etapy leczenia bariatrycznego wpłynęły na stopniową poprawę jakości życia. 3. Wysoka wartość BMI chorych przed zabiegiem przepukliny brzusznej metodą onlay z abdominoplastyką zwiększa ryzyko powikłań, co wiąże się z wydłużonym okresem hospitalizacji.
Źródło:
Polish Journal of Surgery; 2018, 90, 6; 32-36
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One stage onlay hernia repair with abdominoplasty in patients following gastric bypass surgery
Autorzy:
Iljin, Aleksandra
Antoszewski, Bogusław
Zieliński, Tomasz
Skulimowski, Aleksander
Szymański, Dariusz
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1392910.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
bariatric surgery
abdominoplasty
life quality
Opis:
Purpose: 1. Evaluation of results after one-time incisional hernia repair (IHR) modo on-lay and abdominoplasty (Ab-pl) in patients after loss of weight following previous Roux-en-Y Gastric Bypass – RYGB. 2. Analysis of differences in quality of life (QL) changes in bariatric patients before RYGB, as well as before and after abdominal contouring operation. Material and Methods: Clinical analysis involved 20 patients with abdominal disfigurement (following RYGB, and massive weight loss) who underwent one-time IHR using on-lay method together with abdominoplasty. We estimated postoperative results, as well as changes in QL, before RYGB and before and after abdominal contouring procedure (based on DAS 24 and SF-36 scales) in comparison with stage before surgeries. Results: Complications - abnormal wound healing (infection, local necrosis) and pneumonia were found in two persons, seroma in two cases, whereas dysesthesia in four patients. We confirmed QL improvement in all aspects after each stage of treatment. Conclusions: 1. One-stage on-lay hernia repair and abdominoplasty is a safe method improving the functioning of patients. 
2. All stages of bariatric treatment resulted in gradual improvement of the quality of life. 3. High BMI in patients before onlay incisional hernia repair with abdominoplasty increases the risk of complications, which is connected with longer hospital stay.
Źródło:
Polish Journal of Surgery; 2018, 90, 6; 32-36
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Very High Concentration of D-Dimers in Portal Blood in Patients with Pancreatic Cancer
Autorzy:
Durczyński, Adam
Szymański, Dariusz
Nowicki, Michał
Hogendorf, Piotr
Poznańska, Grażyna
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1396873.pdf
Data publikacji:
2012-12-01
Wydawca:
Index Copernicus International
Tematy:
D-dimers
pancreatic cancer
portal blood
peripheral blood
Opis:
Nowadays, increasing attention has been focused on relation between increased D-dimer levels and cancer among patients without detectable thrombosis. The aim of the study was to measure plasma D-dimer levels in portal and peripheral blood in pancreatic cancer patients with absence of venous thromboembolism. Material and methods. Fifteen consecutive patients hospitalized in the Department of General and Transplant Surgery of Medical University in Łódź, from January to March 2012 who underwent surgery due to a pancreatic cancer were enrolled. At laparotomy, portal and peripheral blood were sampled concurrently. D-dimer and fibrinogen levels were measured. Moreover, to investigate overall coagulation function prothrombin time (PT), prothrombin index (PI), international normalized ratio (INR), thrombin time (TT), activated partial thromboplastin time (APTT), TT and APTT index were evaluated. Results. Peripheral plasma D-dimmer levels above normal range were found in 10/15 patients (66,67%), whereas D-dimer above normal values were confirmed in all portal blood samples. Mean D-dimer values were higher in portal than in peripheral blood (3279.37 vs 824.64, by 297%, p=0,025). These discrepancies were accompanied by normal limits of portal and peripheral levels of fibrinogen and comparable coagulation function indexes. Conclusion. Our preliminary study showed the close relation between activation of hemostasis, reflected by elevated D-dimers in portal blood and presence of pancreatic cancer. These data suggest that measurement of portal blood D-dimer levels may be a potentially useful technique for screening the pancreatic cancer.
Źródło:
Polish Journal of Surgery; 2012, 84, 10; 521-525
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Insulinoma - Rare, But Important Clinical Problem. Analysis of a Series of 530 Patients Who Underwent Surgical Treatment for the Pancreatic Tumor
Autorzy:
Durczyński, Adam
Hogendorf, Piotr
Szymański, Dariusz
Izdebski, Witold
Kaczka, Aleksandra
Durko, Łukasz
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1395993.pdf
Data publikacji:
2015-02-03
Wydawca:
Index Copernicus International
Tematy:
insulinoma
pancreatic tumor
surgery
Opis:
Insulinomas are rare tumors, accounting for 1-2% of all neoplasms of the pancreas. Usually their treatment is not associated with any problems; however there is a small subset of problematic clinical cases. The authors present their own clinical experience with surgical treatment of insulinomas of the pancreas. The aim of the study was to conduct a retrospective analysis of patients with insulinomas of the pancreas who underwent surgical treatment at Department of General and Transplant Surgery Medical University in Łódź. Material and methods. The study included all patients who underwent surgical treatment at the Department between 2007 and 2013 for the tumor of the pancreas. Further retrospective analysis included all patients with tumors of the insulinoma type. The data was obtained from medical records, surgical protocols and histopathology reports. Results. The analysis included 530 patients who underwent surgical treatment for the tumor of the pancreas. Insulinoma was found in 10 (1.88%) patients (8 females, 2 males). An average age of patients who underwent surgical treatment was 47.5±13.8 years. An average size of the tumor was 1.6±0.5 cm. Six patients underwent extirpation of the insulinoma, while the other patients underwent distal resection of the pancreas. All patients underwent “an open surgical procedure”. The average duration of the surgical procedure was 55±45 minutes. Duration of the hospitalization in the analyzed group of patients was 7±5 days. Incidence of postoperative pancreatic fistulas was 10%. All insulinomas were benign. Conclusions. Insulinomas were rare among patients who underwent surgical treatment at the Department. They were benign and their treatment was unproblematic. However, there is a small group of cases that can be associated with problematic clinical situations. Thus treatment of patients with insulinomas should be conducted at specialist centers. Correct diagnostic and therapeutic management, involving close cooperation between multiple medical specialists, results in complete curing of majority of patients.
Źródło:
Polish Journal of Surgery; 2014, 86, 11; 505-510
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stosunek liczby neutrofilów do limfocytów oraz wskaźnik redukcji kreatyniny pozwalają na przewidzenie dobrej wczesnej czynności przeszczepu nerki u dorosłych
Autorzy:
Hogendorf, Piotr
Suska, Anna
Skulimowski, Aleksander
Rut, Joanna
Grochowska, Monika
Wencel, Aleksandra
Dziwisz, Filip
Nowicki, Michał
Szymański, Dariusz
Poznańska, Grażyna
Durczyński, Adam
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1392885.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
neutrophil-lymphocyte ratio
creatinine reduction ratio
graft function
cadaveric donor
delayed graft function kidney transplant
Opis:
Opóźniona funkcja nerki przeszczepionej (DGF) jest częstym powikłaniem po transplantacji nerki. Jest związana z uszkodzeniem niedokrwienno-reperfuzyjnym (IRI). Do patogenezy uszkodzenia niedokrwienno-reperfuzyjnego związanego z opóźnioną funkcją przeszczepu przyczyniają się limfocyty. Materiał i metody: 135 pacjentów rasy kaukaskiej otrzymało przeszczep nerki od zmarłych dawców z bijącym sercem. W celu oceny funkcji przeszczepu pacjenci zostali podzieleni na dwie grupy – pacjentów z eGFR30 w 21. dniu po przeszczepieniu (n = 36) oraz pacjentów z eGFR <30 w 21. dniu po przeszczepieniu (n = 99). Zmierzony został poziomy kreatyniny w surowicy w 1. oraz 2. dniu po przeszczepie oraz przedoperacyjne ilość monocytów, limfocytów, płytek krwi i neutrofilów, jak również proporcje pomiędzy nimi. Wyniki: Stwierdzono statystycznie istotne różnice między grupami eGFR <30 i eGFR 30 w ilości limfocytów (0,36 +/- 0,6 vs -0,016 +/- 0,74; odpowiednio p = 0,004) lnNLR (stosunek neutrofili do limfocytów) (1,27 +/- 0,92 vs 1,73 +/- 1,08; p = 0,016) lnLMR (stosunek limfocytów do monocytów) (1,01 +/- 0,57 vs 0,73 +/- 0,64; p = 0,02), lnPLR (stosunek płytek do limfocytów) (4,97 +/- 0,55 vs 5,26 +/- 0,67; p = 0,023), i CCR 2% (-20,20 +/- 21,55 vs -4,29 +/- 29,62; p = 0,004). W analizie jednowymiarowej, czynniki, takie jak: ilość limfocytów 0,22 (OR = 0,331; 95% CI 0,151–0,728; p = 0,006), LnLMR1,4 (OR = 0,255; 95% CI 0,072–0,903; p = 0,034) były związane z gorszą funkcją przeszczepu, podczas gdy lnNLR 1,05 (OR = 2,653 95% CI 1,1158–6,078; p = 0,021), lnPLR 5,15 (OR = 2,536; 95% CI 1,155–5,566; p = 0,02) i CRR2 (współczynnik redukcji kreatyniny w drugim dniu) (OR = 3,286; 95% CI 1,359 –7,944; p = 0,008) wskazywało na lepszą funkcję przeszczepu. Podsumowanie: Wyższa bezwzględna liczba limfocytów (lnLymphocytes) i lnLMR, a także niższy poziom lnNLR i lnPLR były związane z niższym eGFR w 21. dniu po przeszczepie nerki. W analizie wieloczynnikowej CRR2 w połączeniu z limfocytami lnNLR lub lnPLR umożliwiły wyższą dokładność w identyfikacji pacjentów z nieprawidłową funkcją przeszczepu.
Źródło:
Polish Journal of Surgery; 2018, 90, 2; 28-33
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neutrophil-lymphocyte ratio and creatinine reduction ratio predict good early graft function among adult cadaveric donor renal transplant recipients. Single institution series
Autorzy:
Hogendorf, Piotr
Suska, Anna
Skulimowski, Aleksander
Rut, Joanna
Grochowska, Monika
Wencel, Aleksandra
Dziwisz, Filip
Nowicki, Michał
Szymański, Dariusz
Poznańska, Grażyna
Durczyński, Adam
Strzelczyk, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1392878.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
neutrophil-lymphocyte ratio
creatinine reduction ratio
graft function
cadaveric donor
delayed graft function kidney transplant
Opis:
The Background Delayed graft function (DGF) is a common complication following kidney transplantation and is associated with ischemia-reperfusion injury (IRI). Lymphocytes contribute to the pathogenesis of IRI and ischemia-reperfusion related to delayed graft function. Materials and Methods : 135 Caucasian patients received a kidney graft from deceased heart-beating organ donors. We divided patients into 2 groups - patients with the eGFR>=30 on the 21st day post-transplantation (n=36) and patients with the eGFR<30 on the 21st day post-transplantation (n=99) to assess kidney graft function. We measured serum creatinine levels on 1st and 2nd post-transplant day and preoperative levels of monocytes, lymphocytes, platelets, and neutrophils and their ratios. Results: We have found statistically significant differences between the eGFR<30 and the eGFR>=30 groups in the average lnLymphocytes (0.36 +/-0.6 vs. -0.016 +/-0.74, respectively p=0.004) lnNLR (1,27 +/-0.92 vs. 1.73+/-1.08 p=0.016) lnLMR (1.01 +/-0.57 vs. 0.73 +/-0.64 p=0.02), lnPLR (4.97 +/-0.55 vs. 5.26 +/- 0.67 p=0.023), and CCR 2% (-20.20 +/- 21.55 vs. -4.29 +/- 29.62 p=0.004. In the univariate analysis, factors of lnLymphocytes >=0.22 (OR=0.331 95%CI 0.151-0.728 p=0.006), lnLMR>=1.4 (OR=0.255 95%CI 0.072-0.903 p=0.034) were associated with a worse graft function, while lnNLR>=1.05 (OR=2.653 95%CI 1.158-6,078 p=0.021), lnPLR>=5.15 (OR=2.536 95%CI 1.155-5.566 p=0.02) and CRR2 (OR=3.286 95% CI 1.359-7.944 p=0.008) indicated a better graft function. Conclusion: A higher absolute lymphocyte count (lnLymphocytes) and lnLMR, as well as lower lnNLR and lnPLR were associated with a lower eGFR on the 21st day after kidney transplantation. In the multivariate analysis, CRR2 in combination with either lnLymphocytes, lnNLR or lnPLR improved the accuracy of detecting patients with poor graft function.
Źródło:
Polish Journal of Surgery; 2018, 90, 2; 28-33
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges in operating and testing loop heat pipes in 500–700 K temperature ranges
Autorzy:
Szymański, Paweł
Mikielewicz, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2091372.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
loop heat pipe
working fluid
material compatibility
Opis:
The potential applications of loop heat pipes (LHPs) are the nuclear power space systems, fuel cell thermal management systems, waste heat recovery systems, medium temperature electronic systems, medium temperature military systems, among others. Such applications usually operate in temperature ranges between 500–700 K, hence it is necessary to develop an LHP system that will meet this requirement. Such a thermal management device require to meet various technical problems and challenges currently existing in the development of LHP working in medium temperatures, including: (1) selection of appropriate working fluid; (2) selection of appropriate LHP construction material; (3) construction of suitable test rig capable of testing at elevated temperatures; (4) development of new testing methods. Currently, there are no proven working fluids that can be used in LHPs in medium temperature ranges. Water can be applicable only at temperatures up to 570 K. Caesium can be applicable at temperatures above 670 K. Organic fluids usually tend to generate non-condensable gasses and/or decompose at elevated temperatures and their viscosity dramatically increases. For halides, most of them are very reactive or toxic and their full property data are not available or the majority of the physical properties are predicted, also live tests and their environmental impact data are not adequate. As for casing/LHP construction material, there are no full chemical compatibility tables with most of the medium temperature working fluids and the reactivity of fluids significantly limits the potential materials. Also, testing such an LHP is an endeavour as the reactivity of medium temperature fluids and the use of obscure metals create new challenges. Altogether creates multiple challenges in the development, testing, handling and operating of LHP in the medium temperature range.
Źródło:
Archives of Thermodynamics; 2022, 43, 2; 61--73
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola innowacji technologicznych w handlu internetowym
The role of technological innovations in e-commerce
Autorzy:
Tworzydło, Dariusz
Szymański, Wojciech
Tobiasz, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/449768.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorska Szkoła Biznesu w Szczecinie
Tematy:
handel elektroniczny
innowacje technologiczne
narzędzia analityczne
analityka internetowa
analiza i przetwarzanie danych
rozwój e-commerce
e-commerce
technological innovations
analytics tools
online analytics
data analysis and processing
e-commerce development
Opis:
Celem artykułu jest analiza znaczenia innowacji technologicznych w handlu elektronicznym, a także ocena, w jaki sposób mogą one wpływać na kształtowanie się sektora e-commerce. W artykule zaprezentowano wyniki własnych badań ankietowych przeprowadzonych wśród właścicieli e-sklepów, jak również e-konsumentów, zwracając uwagę na liczbę i stopień wykorzystywanych narzędzi przez przedsiębiorców oraz wymagania klientów wobec podmiotów prowadzących sprzedaż internetową. Analizy zagadnienia dokonano w kontekście charakterystycznych dla współczesnego wirtualnego rynku zjawisk, jak big data, konkurencyjność, komodytyzacja, rosnąca świadomość klientów.
The aim of this article is an analysis of the meaning of technological innovations in e-commerce as well as the review of how they might influence the shaping of the e-commerce sector. The article presents the results of an in-house survey research, conducted among the online store owners and customers. It focuses on the number of tools and the degree to which they are used by store owners as well as clients' demands towards sellers. The analysis of this issue was made in the context of the characteristic for the modern virtual market occurrences, such as big data, competitiveness, commoditization, increasing awareness of customers.
Źródło:
Zeszyty Naukowe ZPSB Firma i Rynek; 2017, 2(52); 63-75
2657-3245
Pojawia się w:
Zeszyty Naukowe ZPSB Firma i Rynek
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

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