Annals Series on History and Archaeology Academy of Romanian Scientists最新文献_第7页

PRODUCTIVITY EVALUATION OF THE MAIN GRASSLAND HABITATS, NATURA 2000, FROM THE RARĂU MASSIVE (EASTERN CARPATHIANS) 主要草原生境的生产力评价，natura 2000, rarĂu(喀尔巴阡山脉东部)

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2022-01-01 DOI: 10.56082/annalsarsciagr.2022.1.45

T. Marușca

{"title":"PRODUCTIVITY EVALUATION OF THE MAIN GRASSLAND HABITATS, NATURA 2000, FROM THE RARĂU MASSIVE (EASTERN CARPATHIANS)","authors":"T. Marușca","doi":"10.56082/annalsarsciagr.2022.1.45","DOIUrl":"https://doi.org/10.56082/annalsarsciagr.2022.1.45","url":null,"abstract":"Grassland types of Rarău Massif with soils formed on a calcareous geological substrate (dolomite) have a very high phytodiversity, on average 91 species of plants on a floristic survey. The overall vegetation cover was almost 90% of which over 60% forage species and almost 30% harmful species. Of the 12 main grassland types, 3 are xerophilous, 2 mesoxerophilous and 7 mesophilous. The most species-rich mesophilous grasslands are Festuca rubra and Festuca nigrescens with 135-154 taxones per survey. The highest pastoral value (PV) was assessed at Habitat 6510 of almost 68 PV where the highest production of 13.6 t/ha of green mass production (GMP) was estimated when using the grassland as hayfield. At Habitat 6520, where the grassland was grazed with animals, it was estimated 51.5 PV, over 7 t/ha GMP that supports 0.84 LU/ha in 130 days grazing season. In the same Habitat 6520 there are grasslands with grassy carpet degraded by Nardus stricta and Deschampsia caespitosa, where we have 20 PV and 2 t/ha GMP with 0.30 LU/ha. The rest of the habitats have a lower productivity, respectively habitat 6170, due to the altitude and a colder climate and habitat 6210 with a drier climate. On average, the productivity of the habitats is quite good with 42 PV, 6.4 t/ha GMP and 0.6 LU/ha in 120 days of grazing.","PeriodicalId":32445,"journal":{"name":"Annals Series on History and Archaeology Academy of Romanian Scientists","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74420652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

LONG-TERM EFFECT OF THE TECHNOLOGIES AND RATIONAL USE OF NARDUS STRICTA SUBALPINE PASTURES FROM THE CARPATHIAN MOUNTAINS 喀尔巴阡山脉亚高山窄山杨草场技术与合理利用的长期效应

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2022-01-01 DOI: 10.56082/annalsarsciagr.2022.2.34

T. Marușca, V. Blaj, V. Mocanu

{"title":"LONG-TERM EFFECT OF THE TECHNOLOGIES AND RATIONAL USE OF NARDUS STRICTA SUBALPINE PASTURES FROM THE CARPATHIAN MOUNTAINS","authors":"T. Marușca, V. Blaj, V. Mocanu","doi":"10.56082/annalsarsciagr.2022.2.34","DOIUrl":"https://doi.org/10.56082/annalsarsciagr.2022.2.34","url":null,"abstract":"Between 1996 and 2020, in the Bucegi Mountains at 1,800 m altitude, 4 variants for improving subalpine grasslands degraded by Nardus stricta (40-60%) were investigated, namely A: control; B: chemical fertilization 3 years, followed by night paddocking once every 6 years; C: fertilization identical to B on soil amended in 1995 with lime dust and D: grassland sown in 1995, amended identical to C and fertilized identical to B and C. Each variant was used for 85 days by grazing with cows, and the milk production was recorded. The best variant on 25 years average was D (fertilized, amended, sown) where 5.51 t/ha SU and 4,640 liters of milk per hectare were recorded. The effect of amendment was 18-34% (variant C and D) and of the sown grassland (D) was of 14% to variant B, improved only by fertilization. Averaged over 25 years, the improvement works cost 4 Eurocents per liter of milk, representing 9.5% of the average milk price in 2022 of the European Union (42 Eurocents/Liter), our improvement works and usage with dairy cows having a high economic efficiency. Calcareous amendment lasts over 25-30 years and the sown grassland in subalpine conditions has an effect of about 20 years. Research will continue until the effect of calcium amendment is stopped, which is the most important improvement factor next to organo-mineral fertilization","PeriodicalId":32445,"journal":{"name":"Annals Series on History and Archaeology Academy of Romanian Scientists","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81953008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

REVIEW OF BLOOD VESSELS VELOCITY ESTIMATIONS 血管速度估计综述

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarsciinfo.2021.1-2.5

I. Tache

引用次数: 0

COMPARATIVE CRYSTAL FIELD ANALYSIS OF THE NI2+ ENERGY LEVEL SCHEME IN CdCl2, CdBr2, CdI2 CRYSTALS CdCl2, CdBr2, CdI2晶体中NI2+能级方案的比较晶体场分析

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarsciphyschem.2021.1.19

M. Brik, N. Avram, C. Avram

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ANALYTICAL MODELING AND SIMULATION OF THE CHEMICAL ETCHING PROCEss OF THE BORON-DOPED SILICON LAYERS FROM BBr3 SOURCE in the micromachining technology 微加工技术中BBr3源掺杂硼硅层化学蚀刻过程的解析建模与仿真

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarsciinfo.2021.1-2.45

F. Găiseanu

{"title":"ANALYTICAL MODELING AND SIMULATION OF THE CHEMICAL ETCHING PROCEss OF THE BORON-DOPED SILICON LAYERS FROM BBr3 SOURCE in the micromachining technology","authors":"F. Găiseanu","doi":"10.56082/annalsarsciinfo.2021.1-2.45","DOIUrl":"https://doi.org/10.56082/annalsarsciinfo.2021.1-2.45","url":null,"abstract":"The boron-doped silicon layers commonly used to fabricate various micro-mechanical elements, particularly silicon membranes, are efficient stop-etching barriers, so their control is crucial in the bulk micromachining technology. As the properties of the boron doped layers depends on the type of the doping source and on the diffusion depth in the silicon bulk, a particular analysis should be applied in each specific case. In this paper there are reported the results of an analytical modeling of the boron diffusion profile in silicon, which are applied to simulate the boron diffusion profile at high diffusion temperatures (1050°C, 1100°C, 1150°C and 1200°C), emphasizing a dependence of the diffusion coefficient as a square root of the boron diffusion concentration. It is shown that the comparison of the theoretical results and some experimental diffusion data after diffusion at 1050°C shows a very good agreement, well supporting the analytical modeling. On this basis, the chemical etching rate and the etching time are simulated as a function of the boron diffusion depth in silicon for various etching solutions and etching conditions, providing suitable guiding curves for practical applications in the bulk micromachining technology","PeriodicalId":32445,"journal":{"name":"Annals Series on History and Archaeology Academy of Romanian Scientists","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79508318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TUDOR VLADIMIRESCU’S ARMY – NUCLEUS OF THE MODERN ROMANIAN ARMY 都铎·弗拉基米列斯库的军队——现代罗马尼亚军队的核心

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarscihist.2021.1.53

Jipa Rotaru

引用次数: 0

SPECTROMETRIC AND RADIOMETRIC TECHNIQUES OF NUCLEAR RADIATIONS IN THE ASSESSMENT OF ENVIRONMENTAL RADIOACTIVITY 环境放射性评价中的核辐射光谱和辐射技术

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarsciphyschem.2021.1.38

I. Popescu, P. Mursa, Olimpiu-Razvan Dumitrescu

引用次数: 0

A HARDWARE ACCELERATOR FOR THE COMPUTATION OF MODIFIED DISCRETE SINE TRANSFORM 一种用于计算修正离散正弦变换的硬件加速器

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarsciinfo.2021.1-2.57

D. Chiper

引用次数: 0

Romanian-Russian Documents on the Administration of Dobrogea (June 1877-November 1878) 罗马尼亚-俄国关于多布罗热亚管理的文件(1877年6月- 1878年11月)

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarscihist.2021.2.17

Valentin Ciorbea, Nicoleta Stanca

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NICOLAE IORGA ON THE DEVELOPMENT STAGES OF ROMANIAN NATIONALISM 论罗马尼亚民族主义的发展阶段

Annals Series on History and Archaeology Academy of Romanian Scientists Pub Date : 2021-01-01 DOI: 10.56082/annalsarscihist.2021.1.82

Mihai D. Drecin

{"title":"NICOLAE IORGA ON THE DEVELOPMENT STAGES OF ROMANIAN NATIONALISM","authors":"Mihai D. Drecin","doi":"10.56082/annalsarscihist.2021.1.82","DOIUrl":"https://doi.org/10.56082/annalsarscihist.2021.1.82","url":null,"abstract":"Known for his research on the elements of national unity which rose and developed in the minds of all Romanians and which eventually led to the establishment of Greater Romania, the great historian Nicolae Iorga identifies the stages through which the national sentiment of Romanians on both sides of the Carpathians had evolved from the Middle Ages to the modern era. After having researched the published works of Romanian humanists and Enlightenment writers in the archives and libraries of Romania, Bucovina and Transylvania, Nicolae Iorga identified the following stages of Romanian nationalist manifestations: primitive nationalism (9th to l0th century), enduring nationalism - the foundation of modern nationalism (17th century), definitive nationalism (18th century), and modern nationalism (the 1848/1849 generation). While Transylvanian nationalism was petitionary in nature, the nationalism that manifested south and east of the Carpathians was labelled as political, as it was accompanied by concrete own achievements. \"Romanian nationalism\" is seen as cultural and democratic, based on the traditional hospitality of the Romanian peasants and the sentiment of unity. These are the features of the Romanian national sentiment defined by Nicolae Iorga in 1922, which were used as a foundation for the Nationalist Democratic Party, the party he established in 1910 and whose leader he was until 1938.","PeriodicalId":32445,"journal":{"name":"Annals Series on History and Archaeology Academy of Romanian Scientists","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78823897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0