检索结果-南通市图书馆

The Influence of Translation on the Arabic Sentence Structure:Electronic Journalism as a Model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sino-US English Teaching 2020年第1期17卷 18-27页

作者： Yahya Ababneh rafat Mal rousan Yarmouk University IrbidJordan

This study investigates the influence of translation from English on the Arabic ***,it attempts to study how the translation of English auxiliary verbs influences the syntactic structure of the Arabic sentence and how the English predicating structure affects that of *** study is qualitative in *** data of this study were based on the language of electronic journalism in Jordan as a model.A sample from two popular news agencies in the Jordanian electronic media was *** study reveals that the translation of English auxiliary verbs has influenced the syntactic structure of the Arabic ***,the study indicates that the influence of the English auxiliary verb on Arabic caused the passive form to die out from the actual use of the Arabic *** study also reveals a change in the predicating structure of the Arabic ***,the study shows a change in the deictic indication of some of the demonstratives used in Arabic sentence structures.

关键词： translation English auxiliary verbs Arabic sentence electronic media

Skeletal extension rate of the reef building coral <i>Porites</i>species from Aqaba and their environmental variables

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2012年第9期4卷 731-739页

作者： Saber al-rousan The University of Jordan Marine Science Station P.O. Box 195 Aqaba 77110 Jordan

Annual skeletal extension rates of the sclera-actinian corals Porites species were investigated in 32 colonies from the northern Gulf of Aqaba fringing reef at various depths (1 - 42 m). all corals reveal clear and regular skeletal density banding patterns. Results showed that the high-density annual growth bands were formed during winter and the low-density annual growth bands during summer. The mean annual extension rates of the studied corals reveal a large inter-colony variability with values ranged between 2.36 to 20.0 mm/year. While a general trend of decreasing coral extension rate with depth was observed and best explained by a simple exponential model, the rates clustered into two groups: 10.86 ± 2.54 mm/year in water depths less than 10 m, and 5.23 ± 1.99 mm/year below 12 m. Light intensity seems to be the primary environmental factor responsible for decreasing coral extension rate with depth since the effect of other environmental parameters could be neglected from the Gulf of Aqaba. Time series record of the mean annual coral extension rate showed a slight increasing linear trend which could be linked to increase seawater temperature over the period of time represented.

关键词： Coral Growth Porites Skeletal Extension Rate Gulf of Aqaba Red Sea

A Technical Experiment on Biogas Production from Small-Scale Dairy Farm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sustainable Bioenergy Systems 2014年第1期4卷 10-18页

作者： Ahmad al-rousan Anas Zyadin National Energy Research Center Amman Jordan School of Forest Sciences University of Eastern Finland Joensuu Finland

The key objective of this study was to evaluate the economic feasibility of producing biogas from privately-owned dairy farm in the North of Jordan. This experiment did not adopt Best-Available-Technology (BAT) but rather traditional unit manufactured with minimized costs through installing locally produced materials to avoid economic burden on the farmers’ production costs. A thermophilic biodigester unit was built sub-surface with 22 m3 capacity (15 m3 manure tank plus 7 m3 biogas holder) in a relatively small scale dairy farm. The daily feed was about 500 liter of cow slurry (150 - 200 liter cow manure) and the remaining were production liquids. The retention time was approximately 25 - 30 days and the seasonal temperature measured was about 18°C - 20°C. The unit was thermally insulated;therefore, the temperature fluctuation was slightly around +/-3°C. The daily biogas production was estimated at 7 m3 equivalent to 4 kg of Liquefied Petroleum Gas (LPG) or 11 (12.5 kg) LPG cylinders per month worth US$140. The methane percentage was 60% in relatively warm temperature (18°C - 20°C) and approximately 56% in colder

关键词： Anaerobic Digestion Biogas Cow Manure Jordan

Prospects of Synthetic Biodiesel Production from Various Bio-Wastes in Jordan

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Sustainable Bioenergy Systems 2013年第3期3卷 217-223页

作者： Ahmad al-rousan Anas Zyadin Salah Azzam Mohammed Hiary National Energy Research Center Amman Jordan School of Forest Sciences University of Eastern Finland Joensuu Finland

The main objectives of this technical experiment are to quantify the amount of various bio-wastes available for the bioenergy development in Jordan and investigate the prospects of biodiesel potentials from such bio-wastes using catalytic depolymerization technology developed in the German company alPHAKAT. The quantification process revealed substantial quantities of bio-wastes originated from various sectors such as dairy and poultry farms, by-products of wastewater treatment plants, and agriculture by-products. The results show that olive cake provides the highest potential for biodiesel production with a ratio of 39%. Chemical analysis showed varying levels of sulfur contents, which required desulfurization unit to produce standard quality biodiesel. Chemical analysis also showed high phosphorus content, which provided another economic opportunity to use the biodiesel by-products as a fertilizer. The statistical correlation test showed a strong linear correlation between the percentage of organic content and caloric value and biodiesel output. The study also unveiled that the C:H ratio is strongly correlated with the biodiesel production model. The regression analysis generated a model for biodiesel production, which can be used to evaluate the biodiesel production based on the net dry biomass and C:H ratio in the substrate. Based on the model, the study estimated the potential of biodiesel from olive cake to reach up to 4 million liters annually. Policymakers and involved governmental institutes are advised to develop new regulations and laws to increase the share of bioenergy in the primary energy mix through attracting co-public investments accompanied by supportive economic tools such as starter loans, tax exemptions, and feedin-tariffs. Further research is needed to quantify other sources of bio-wastes such as cooking-oil wastes.

关键词： Synthetic Biodiesel Olive Cake Depolymerization Jordan

Fish assemblages in seagrass habitat along the Jordanian coast of the Gulf of Aqaba

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2012年第8期4卷 517-525页

作者： Maroof A. Khalaf Saber al-rousan Fuad A. al-Horani Department of Marine Biology Faculty of Marine Sciences The University of Jordan-Aqaba Aqaba Jordan Marine Science Station The University of Jordan Aqaba Jordan

The spatial distribution and community structure of the fishes were studied at different depths and sites along the Jordanian coast in seagrass habitat. A total of 37,034 fishes were counted representing 132 species belonging to 35 families observed during visual census in three sites (average of 4741.6 fish per transect). Out of the 132 species encountered, 5 species of them including Neopomacentrus miryae Lethrinus borbonicus, Pseudanthias squamipinnis, Lethrinus variegatus, Siganus rivulatus accounted for 57.7% of all individuals. Fishes were most abundant and significantly higher at 12 m depths (mean N = 2889.6) in comparison with shallow 6m depth (mean = 1225.3 with (p = 0.0218). This may be attributed to many plank-tivorous fishes that inhabit this depth such as P. squampinnis, Paracheilinus octotaenia, Chromis pelloura, Decapterus macarellus, and Cirrhilabrus rubriventralis probably with high abundance of plankton at 12 m depth than 6 m. The number of species was significantly higher in Phosphate Loading Berth (PLB;mean S = 54.7) than in Hotels area site (HA;mean S = 12.8) with (p = 0.0002) and Tala Bay site (TB;mean S = 31) with (p = 0.0484). This may be due to higher hard coral cover at Phophate Loading Berth.

关键词： Fish Assemblages Seagrass Habitat Gulf of Aqaba Red Sea

C3SM: Information Assurance Based on Cryptographic Checksum with Clustering Security Management Protocol

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Information Security 2012年第4期3卷 272-280页

作者： Moad Mowafi Lo'ai Tawalbeh Walid aljoby Mohammad al-rousan Department of Computer Engineering Jordan University of Science and Technology Irbid Jordan Department of Network Engineering and Security Jordan University of Science and Technology Irbid Jordan

Wireless Sensor Networks (WSNs) are resource-constrained networks in which sensor nodes operate in an aggressive and uncontrolled environment and interact with sensitive data. Traffic aggregated by sensor nodes is susceptible to attacks and, due to the nature of WSNs, security mechanisms used in wired networks and other types of wireless networks are not suitable for WSNs. In this paper, we propose a mechanism to assure information security against security attacks and particularly node capturing attacks. We propose a cluster security management protocol, called Cryptographic Checksum Clustering Security Management (C3SM), to provide an efficient decentralized security management for hierarchal networks. In C3SM, every cluster selects dynamically and alternately a node as a cluster security manager (CSM) which distributes a periodic shared secrete key for all nodes in the cluster. The cluster head, then, authenticates identity of the nodes and derive a unique pairwise key for each node in the cluster. C3SM provides sufficient security regardless how many nodes are compromised, and achieves high connectivity with low memory cost and low energy consumption. Compared to existing protocols, our protocol provides stronger resilience against node capture with lower key storage overhead.

关键词： Wireless Sensor Networks Security Message Authentication Code Cryptographic Node Capture Attack

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中东水泥市场现状及趋势分析

中国水泥 2009年第4期 20-22页

作者：艾哈迈德.罗山阿拉伯联盟水泥及建材组织

如世界上其他国家一样，在过去的三年中，水泥工业在阿拉伯国家也得到蓬勃发展。有目共睹，这个行业的增长与近年来阿拉伯国家建筑行业前所未有的高速增长密不可分，水泥需求量因此而增长大约10％～15％，而在一些阿拉伯国家（如卡塔尔... 详细信息

如世界上其他国家一样，在过去的三年中，水泥工业在阿拉伯国家也得到蓬勃发展。有目共睹，这个行业的增长与近年来阿拉伯国家建筑行业前所未有的高速增长密不可分，水泥需求量因此而增长大约10％～15％，而在一些阿拉伯国家（如卡塔尔）更达到20％以上。从而大部分阿拉伯国家已成为水泥出口国，而上个世纪末，其中一些国家还是水泥进口国。

关键词：水泥工业市场现状阿拉伯国家中东建筑行业不可分需求量卡塔尔