Gotowe bibliografie tematyczne / 708.9/4

Gotowa bibliografia na temat „708.9/4”

Autor: Grafiati

Data publikacji: 27 lipca 2024

Data aktualizacji: 28 lipca 2024

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Artykuły w czasopismach na temat "708.9/4"

Sulaiman, Sulaiman, i April Gunawan. "PENGUJIAN TURBIN ANGIN DENGAN VARIASI KECEPATAN ANGIN, PUTARAN MOTOR DAN PUTARAN GENERATOR DENGAN MENGGUNAKAN TEROWONGAN ANGIN JENIS HORIZONTAL 3 BLADE". Jurnal Teknologi dan Vokasi 1, nr 1 (25.01.2023): 38–44. http://dx.doi.org/10.21063/jtv.2023.1.1.6.

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Wind tunnel (Terowongan) angin adalah peralatan uji berstruktur tabung dimana udara dipaksa melaju dengan sangat kencang yang mana untuk mempelajari efek aliranaerodinamis pada suatu objek benda, untuk melakukan pengujian menggunakan blade yang mana angin yang dipakai dengan kecepatan 3,4,5 dan 6 m/s. jenis blade dengan bahan kayu pinus, dengan Naca 4412, blade Naca 4412 dengan bahan resin epoxsy 70% + fiber glass 30%, blade Naca 4412 dengan bahan resin epoxsy 70% + fiber gllas 18% + serabut kelapa 12%, blade Naca 4712 dengan bahan resin epoxsy 70% + fiber glass 18% + serabut kelapa 12% dan blade Naca 5513 dengan bahan resin epoxsy 70% + fiber glass 18% + serabut kelapa 12%, Jenis Blade resin epoksi + fiber glass + coir Naca 4412 blade yang paling tinggi putarannya dibandingkan jenis blade yang lainnya yang telah di uji,dimana putaran generator pada kecepatan angin 3 m/s putaran generaotor yang telah di hitung rata-rata nya mencapai 545.29 Rpm, kecepatan angin 4 m/s putaran generator 708.9 Rpm, pada kecepatan angin 5 m/s putaran generator 928.94 Rpm, dan pada kecepatan angin 6 m/s putaran generator 928.94 Rpm.

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Chen, Yi Feng, Jun Wu Kan, Shu Yun Wang, Fang Sheng Huang i Ping Zeng. "Experimental Study on a Gyromagnetic Piezo-Cantilever Generator". Applied Mechanics and Materials 394 (wrzesień 2013): 416–20. http://dx.doi.org/10.4028/www.scientific.net/amm.394.416.

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To meet the demands of the rotating structure for self-power, a novel gyromagnetic piezo-cantilever generator (GPCG) excited by the coupling between rotating magnets and those fixed on piezo-cantilever was presented. The influence of magnetic force (number and configuration of the magnets) and rotating speed on energy generation of the GPCG was investigated experimentally. The research results show that there are 9 optimal rotating speeds for the GPCG to achieve peak voltage at speed range of 0-1390r/min. With 1 magnet (ø12x2mm3) fixed on piezo-cantilever, the increasing number of rotating magnets (ø12x4mm3) in the same place (ns) of the rotator exerts no influence on the optimal rotating speeds, but leads to rising output voltage. At 1042.5r/min, the achieved peak voltages from the GPCG in the case ofns=1/2/4/6 are 13.2/16.6/23.8/27.8V respectively. The optimal speeds decrease and the peak voltage rises with the increasing number of magnets evenly distributed on the rotator (nd). In the case of 1 magnet fixed on piezo-cantilever andnd=1/2/4/8, the optimal rotating speeds and the peek voltages from the GPCG are 708.9/528.2/528.2/264.1r/min and 13.2/16.6/23.8/27.8V respectively.

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Kim, Joseph, Joon Ki Min, Se Young Kim, Myung Hun Yoon i Hee Seung Chin. "Clinical Characteristics of Lamellar Macular Hole Subtypes: Degenerative and Tractional". Journal of Ophthalmology 2021 (20.11.2021): 1–5. http://dx.doi.org/10.1155/2021/5610199.

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Purpose. To analyze clinical parameters of two subtypes of lamellar macular hole (LMH): degenerative and tractional. Methods. This retrospective chart review study included patients monitored for more than 6 months after the initial diagnosis of LMH from January 2011 to January 2018. LMH was classified in two subtypes: degenerative and tractional. The following parameters between both subtypes were assessed: central subfield thickness (CST), maximum inner diameter (MID), maximum outer diameter (MOD), MID/MOD ratio, inner and outer segment (IS/OS) junction disruption, residual retinal thickness (RRT), subfoveal choroidal thickness (SFCT), best-corrected visual acuity (BCVA), anatomical progression rate, and percentage of patients undergoing surgery. Results. This study included 51 eyes with a mean follow-up period of 18.94 months: 33 eyes with tractional LMH and 18 eyes with degenerative LMH. MID was not significantly different between both subtypes but MOD was significantly greater in tractional LMH than degenerative types (tractional, 1131.6 μm; degenerative, 708.9 μm; p < 0.001). The MID were significantly increased in degenerative eyes, while the tractional eyes featured a significant increase in MOD. BCVA was not significantly different between both subtypes at baseline and the last follow-up. Epiretinal membrane presence was significantly different between the two subtypes (tractional, 96.9%; degenerative, 22.2%; p < 0.001). Ellipsoid defect and rate of receiving surgery were not significantly different between both subtypes. The anatomical progression rate in tractional eyes (81.8%) was significantly higher than that of degenerative LMH (27.7%) ( p = 0.010). The SFCT was correlated to anatomical progression in the tractional LMH (correlation coefficient = 0.351, p = 0.049) but not in the degenerative LMH. During the follow-up period, 4 eyes (22.2%) of the degenerative LMH and 11 eyes (33.3%) of the tractional LMH underwent surgery. Conclusions. We found that greater SFCT at baseline was correlated to anatomical progression of tractional LMH. Therefore, it is expected that SFCT could be used as a biomarker to predict anatomical progression in tractional LMH.

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Wang, Yin-Xin, Kun Qin, Rui Wang, Wen-Li Zhang i Qi-Di Zhong. "Crystal structure of (E)-1-(4-benzyl-3,5-dioxomorpholin-2-ylidene)ethyl acetate, C₁₅H₁₅N₁O₅". Zeitschrift für Kristallographie - New Crystal Structures 237, nr 2 (19.01.2022): 217–18. http://dx.doi.org/10.1515/ncrs-2021-0450.

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Abstract C15H15N1O5, triclinic, P 1 ‾ $P\overline{1}$ (no. 2), a = 5.075(4) Å, b = 11.147(8) Å, c = 13.319(9) Å, α = 106.064(10)°, β = 96.091(11)°, γ = 98.189(10)°, V = 708.2(9) Å3, Z = 2, R gt (F) = 0.0444, wR ref (F 2) = 0.1581, T = 296 K.

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P.U., Lukpata, Abraham A, Adugba A.O, Ode A.I. i Otashu K.F. "Anti-inflammatory effects of khaya senegalensis bark and tinospora cordifolia leaf extracts on striatal ischemic injury in rats". KIU Journal of Health Sciences 4, nr 1 (23.05.2024): 36–45. http://dx.doi.org/10.59568/kjhs-2024-4-1-04.

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The striatal synaptic pathways play a crucial role in the functioning of the basal ganglia and are an essential part of the cortical-basal ganglia loops that regulate motor function, emotion, and cognition. The purpose of this study was to examine the potential therapeutic benefits of extracts from the leaves of Tinospora cordifolia (TC) and Khaya senegalensis (KS) on striatal ischemia injury resulting from amitriptyline (AMT). Eleven groups (n = 5) comprising fifty-five adult male Wistar rats weighing between 184 and 254 g were created: Distilled water (2 milliliters per kilogram) was used as a control. The groups that included AMT (750 mg/kg), KS (200 mg/kg) + AMT, KS (300 mg/kg) + AMT, KS (400 mg/kg) + AMT; TC (200 mg/kg) + AMT; TC (300 mg/kg) + AMT; TC (400 mg/kg) + AMT; COM (200 mg/kg) + AMT; COM (300 mg/kg) + AMT and COM (400 mg/kg) + AMT. Treatment was given orally for a period of 14 days. Rats were neck dislocated to stop the experiment and brain tissues were removed and preserved in 10% buffered formal saline. TNF- α result showed a significant increase (p<0.05) by 708.9±28.05δ in AMT-treated rats compared to the control (324.8±7.58). And decreased significantly (328.5±5.24α, 380.4±3.43δ and 375.3±5.50δ) in the treated groups compared to AMT-treated rats. Normal cytoarchitecture of the striatal cells was intact in the control group. AMT rates (Ischemic stroke rats) revealed neurodegenerative changes, characterized by cellular hypertrophy and perivascular edema, and proliferation of reactive astrocytes and microglia. However, the treatment of KS, TC, and COM KS+TC remarkably ameliorates striatal cell degeneration by preserving striatal cell cytoarchitecture, especially with COM KS+TC 400 mg/kg treatment. Findings suggest that COM KS+TC possesses anti-inflammatory properties, which could be of potential benefit in the treatment and management of ischemic stroke.

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Zheng, Shiyi, Buhao Zhang, Xuejian Liu, Zhongming Chen, Zhengren Huang i Jie Yin. "β→α Phase Transformation and Properties of Solid-State-Sintered SiC Ceramics with TaC Addition". Materials 16, nr 10 (17.05.2023): 3787. http://dx.doi.org/10.3390/ma16103787.

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Dense SiC-based composite ceramics were fabricated by means of the ex situ addition of TaC using solid-state spark plasma sintering (SPS). Commercially available β-SiC and TaC powders were chosen as raw materials. Electron backscattered diffraction (EBSD) analysis was conducted to investigate the grain boundary mapping of SiC-TaC composite ceramics. With the increase in TaC, the misorientation angles of the α-SiC phase shifted to a relatively small range. It was deduced that the ex situ pinning stress from TaC greatly suppressed the growth of α-SiC grains. The low β→α transformability of the specimen with the composition of SiC-20 vol.% TaC (ST-4) implied that a possible microstructure of newly nucleated α-SiC embedded within metastable β-SiC grains, which could have been responsible for the improvement in strength and fracture toughness. The as-sintered SiC-20 vol.% TaC (ST-4) composite ceramic had a relative density of 98.0%, a bending strength of 708.8 ± 28.7 MPa, a fracture toughness of 8.3 ± 0.8 MPa·m1/2, an elastic modulus of 384.9 ± 28.3 GPa and a Vickers hardness of 17.5 ± 0.4 GPa.

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Bouillon-Minois, Jean-Baptiste, David Thivel, Carolyne Croizier, Éric Ajebo, Sébastien Cambier, Gil Boudet, Oluwaseun John Adeyemi i in. "The Negative Impact of Night Shifts on Diet in Emergency Healthcare Workers". Nutrients 14, nr 4 (16.02.2022): 829. http://dx.doi.org/10.3390/nu14040829.

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Despite the consequences of night-shift work, the diet of night-shift workers has not been widely studied. To date, there are no studies related to food intake among emergency healthcare workers (HCWs). We performed a prospective observational study to assess the influence of night work on the diet of emergency HCWs. We monitored 24-h food intake during a day shift and the consecutive night, and during night work and the daytime beforehand. We analyzed 184 emergency HCWs’ food intakes. Emergency HCWs had 14.7% lower (−206 kcal) of their 24-h energy intake during night shifts compared to their day-shift colleagues (1606.7 ± 748.2 vs. 1400.4 ± 708.3 kcal, p = 0.049) and a 16.7% decrease in water consumption (1451.4 ± 496.8 vs. 1208.3 ± 513.9 mL/day, p = 0.010). Compared to day shifts, night-shift had 8.7% lower carbohydrates, 17.6% proteins, and 18.7% lipids. During the night shift the proportion of emergency HCWs who did not drink for 4 h, 8 h and 12 h increased by 20.5%, 17.5%, and 9.1%, respectively. For those who did not eat for 4 h, 8 h and 12 h increased by 46.8%, 27.7%, and 17.7%, respectively. A night shift has a huge negative impact on both the amount and quality of nutrients consumed by emergency healthcare workers.

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Wendorff, Marco, i Caroline Röhr. "Neue gemischte Zinn-reiche Erdalkalimetall-Stannide – Synthese, Strukturchemie und chemische Bindung / New Mixed Tin-rich Alkaline Earth Stannides – Synthesis, Structural Chemistry and Chemical Bonding". Zeitschrift für Naturforschung B 66, nr 3 (1.03.2011): 245–61. http://dx.doi.org/10.1515/znb-2011-0306.

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Ternary mixed Ca/Ba-Sr pentastannides AIISn5 (AII = Ca, Sr, Ba) have been synthesized from stoichiometric mixtures of the elements or from tin-rich melts. The crystal structures of two new compounds of overall composition ASn5 (A = Sr, Ba) were determined by means of single-crystal X-ray data. The structures of both Sr0.94Ba0.06Sn5 (monoclinic, space group C2/m, a = 1762.8(11), b = 704.1(3), c = 1986(2) pm, β = 100.31(6)º, Z = 14, R1 = 0.0996) and Sr0.89Ba0.11Sn5 (orthorhombic, space group Cmcm, a = 708.1(2), b = 1770.4(8), c = 2781.6(11) pm, Z = 20 , R1 = 0.0821) are closely related and can be described by different stacking sequences of comparable nets. They both resemble the structural features of the tristannides AIISn3 in forming dimers and trimers of facesharing Sn6-octahedra, which are further connected via common corners. According to the higher tin content, the rods formed of the octahedra are interspersed by additional Sn atoms, which themselves show a bonding situation resembling the structure of elementary tin. The complex tin network formed by the strong Sn-Sn bonds alone can be regarded as a cutout of the hexagonal diamond structure. In this view, the similarities of the title compounds to the known binary stannides BaSn5 and SrSn4 become apparent. The phase widths of the latter have been investigated and shown to reach up to Sr0.37Ba0.63Sn5 (BaSn5 type, hexagonal, space group P6/mmm, a = 536.8(2), c = 695.2(3) pm, R1 = 0.0312) and Sr0.79Ca0.21Sn4 (SrSn4 type, orthorhombic, space group Cmcm, a = 461.7(3), b = 1714.1(14), c = 706.7(4) pm, Z = 4, R1 = 0.0861), respectively. The total density of states calculated for the orthorhombic pentastannide within the FP-LAPW DFT band structure approach shows a broad minimum at the Fermi level, which can be explained using the Zintl and the Wade/Jemmis electron counting rules.

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Hamid Abdullah, Ali, Fouad Manhar Alkam i Ali Waheed Abbas. "Studying the quality of the main outfall drain water in Al Qadisiyah area and its suitability for some agricultural uses / Iraq". University of Thi-Qar Journal of Science 6, nr 4 (25.06.2018): 62–70. http://dx.doi.org/10.32792/utq/utjsci/v6i4.68.

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The present study was conducted for the period from November 2011 to October 2012. Three sites were identified in this study to measure some of the physical and chemical properties of the main outfall drain water, the passer Al-Qadisiyah Governorate to determine the quality of the public water, physical and chemical, and its suitability for irrigation. The results of the current study showed that the values of the air temperature ranged between (4 - 45 C°) and water (9.5-30C°). The pH values were bent to the basic side and ranged from (7.7-8.4), dissolved oxygen values (5.1-10.8) mg / l and electrical conductivity was ranged from(3380-11520) μs / cm, Salinity ranged between(2.1 -7.3g / L), where water is classified as oligohalic, The total dissolved solids values ranged between (3310 - 7650) mg / L. The high alkalinity in the study , total alkalinity ranged from (1140 -2280mg CaCo3/ L), Calcium ions were recorded (131.4 -320-mg CaCo3 / L), and Magnesium (135.9-401.2 mg CaCo3/ L). The values of sodium exceeded the Iraqi and international standard limits and ranged between (708.7-1256mg/l), Potassium values ranged between (13.3 -28.2mg / L), The values of chloride were high, ranging between (849.7 -1939.3mg / L) and sulphate (734.8-1074.2) mg / l), The ratio of sodium adsorption exceeded the permissible limits for irrigation of agricultural crops according to the classification of the American salinity laboratory (1954) ranging from (35.973.5 %). The results of the study showed that the MOD water is physically and chemically unfit for the determinants.

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Ross, Sharona B., Shlomi Rayman, Ja’Karri Thomas, George Peek, Kaitlyn Crespo, Cameron Syblis, Iswanto Sucandy i Alexander Rosemurgy. "Evaluating the Cost for Robotic vs “Non-Robotic” Transhiatal Esophagectomy". American Surgeon 88, nr 3 (18.11.2021): 389–93. http://dx.doi.org/10.1177/00031348211046885.

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Introduction This study was undertaken to analyze and compare the cost of robotic transhiatal esophagectomy (THE) to “non-robotic” THE (ie, “open” and laparoscopic). Methods With IRB approval, we prospectively followed 82 patients who underwent THE. We analyzed clinical outcomes and perioperative charges and costs associated with THE. To compare profitability, the robotic approach was analyzed against “non-robotic” approaches of THE using F-test, Mann-Whitney U test/Student’s t-test, and Fisher’s exact test. Statistical significance was reported as P ≤0.05. Data are presented as median (mean ± SD). Results 67 patients underwent the robotic approach, and 15 patients underwent “non-robotic” approach; 4 were “open” and 11 were laparoscopic. 79 patients had adenocarcinoma. Operative duration for robotic THE was 327 (331 ± 82.8) vs 213 (225 ± 62.0) minutes ( P = 0.0001) and estimated blood loss was 150 (184 ± 136.1) vs 300 (476 ± 708.7) mL ( P = 0.0001). Length of stay was 7 (11 ± 11.8) vs 8 (12 ± 10.6) days ( P = 0.76). 16 patients had post-operative complications with a Clavien-Dindo score of three or more. Hospital charges for robotic THE were $197,405 ($259,936 ± 203,630.8) vs “non-robotic” THE $159,588 ($201,565 ± $185,763.5) ( P = 0.31). Cost of care for robotic THE was $34,822 ($48,844 ± $45,832.8) vs “non-robotic” THE was $23,939 ($39,386 ± $44,827.2) ( P = 0.47). Payment received for robotic THE was $14,365 ($30,003 ± $40,874.7) vs “non-robotic” THE was $28,080 ($41,087 ± $44,509.1) ( P = 0.41). 15% of robotic operations were profitable vs 13% of “non-robotic” operations. Conclusions Patients were predominantly older overweight men who had adenocarcinoma of the esophagus. The robotic approach had increased operative time and minimal blood loss. More than a fourth of operations included concomitant procedures. Patients were discharged approximately one week after THE. Overall, the robotic approach has no apparent significant differences in charges, cost, or profitability.

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Książki na temat "708.9/4"

Bourdieu, Pierre. The love of art: European art museums and their public. Cambridge, UK: Polity Press, 1991.

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Bourdieu, Pierre. The love of art: European art museums and their public. Cambridge: Polity, 1990.

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Bourdieu, Pierre. The love of art: European art museums and their public. Stanford, Calif: Stanford University Press, 1990.

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Bourdieu, Pierre. The Love of Art. Polity Press, 1997.

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Bourdieu, Pierre. El amor al arte. Prometeo, 2013.

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