barkana, loeb the first sources of light and the reionization of the universe
barkana, loeb. the first sources of light and the reionization of the universe
... mass scale M . Thus, the abundance of halos depends on the two functions (M ) and crit (z), each of which depends on the energy content of the universe and the values of the other cosmological ... curve), 20 (long-dashed curve), and 30 (dot–dashed curve). IN THE BEGINNING: THE FIRST SOURCES OF LIGHT AND THE REIONIZATION OF THE UNIVERSE Re...
Ngày tải lên: 24/04/2014, 17:06
Sensibility study of flooding and drying issues to the operating conditions in PEM fuel cells
... decrease of the current density. Moreover, there are also cases where the current increases in a first part of the channel, reaches a maximum, and then decreases further along the channel. In these ... effect on the water pressure profile, as indicated by the relatively large vertical separation of the two tracks in the membrane, the GDLs and the channels (...
Ngày tải lên: 05/09/2013, 14:58
Optimization of design and operating parameters on the year round performance of a multi-stage evacuated solar desalination system using transient mathematical analysis
... and the outlet of the second collector will be inlet to the next and so on up to the N c th collector. Thus, the outlet temperature of the last collector is taken as the oulet temperature of ... radiation and the ambient temperature for the months of January to June. Figure 9 shows the variation of global solar radiation and the ambient temperature f...
Ngày tải lên: 05/09/2013, 16:11
A STUDY OF THE RELATIONSHIP BETWEEN CEO COMPENSATION AND FIRM PERFORMANCE IN THE US AIRLINE INDUSTRY 2002 2006
... to carry out the strategic plans and policies established by the board of directors. As the leader of the firm, the CEO has an astounding impact on the performance of the firm and many believe ... managers and the governance of corporations in the United States and legislators and regulators have been quick to respond to the latest corporate scandals....
Ngày tải lên: 11/09/2013, 11:44
A study of semantic and pragmatic features of the adjective warm and its vietnamese equivalents
... the first part of the chapter four deals with the semantic features of the adjective Warm through analyzing its grammatical structures. It should be noted that the variety of the meaning of ... Three, the methods and procedures of the 24 study are described. The source of data and how they are analysed are included. Chapter Four presents the fin...
Ngày tải lên: 26/11/2013, 13:21
A contrastive analysis of semantic and pragmatic features of the words denoting birds in english and vietnamese
... features of the WDBs. The finding of the study may be in one way or another beneficial to the language learners since it provides a good background of how to use the meanings of the WDBs appropriately. ... 5: CONCLUSION AND IMPLICATION 5.1. CONCLUSION The basic goal of this thesis is to describe, analyse and contrast the semantic and pragmatic features of...
Ngày tải lên: 26/11/2013, 13:30
Tài liệu Freedom of Expression on the Internet - A study of legal provisions and practices related to freedom of expression, the free flow of information and media pluralism on the Internet in OSCE participating States ppt
... contradictory to the conclusions of the Final Document of the Moscow Meeting of the Conference on the Human Dimension of the CSCE and in breach of Article 19 of the International Covenant on Civil and Political ... namely the conclusions of the Final Act of Copenhagen and the conclusions of the Final Document of the Moscow Meeting as well a...
Ngày tải lên: 18/02/2014, 00:20
Tài liệu Báo cáo khoa học: Abstract Integration of Metabolism and Survival PP-1 The metabolic switch in liver methionine metabolism pptx
... higher in the N–C+ group than in the N+C– group, and the frequency of metastasis and number of cases with stage D were lower in the N+ group than in the N- group. Furthermore, the number of cases ... topographical location of the aroma- tic ring of the position 3 and 4 amino acid residues seem to be critical for the stimulation of the [ 35 S] GTPcS bindin...
Ngày tải lên: 19/02/2014, 07:20
Tài liệu Báo cáo khoa học: Bioinformatics of the glycoside hydrolase family 57 and identification of catalytic residues in amylopullulanase from Thermococcus hydrothermalis doc
... critical for the pullulanolytic and amylolytic a ctivities of the amylopullu- lanase. T herefore, these d ata support the prediction and strongly suggest that the bifunctionality of the amylopullu- lanase ... Thermococcus hydrothermalis AL662. The analysis of this sequence revealed that the encoded enzyme i s a member of GH-57 [21,22]. The cloning and expression...
Ngày tải lên: 19/02/2014, 12:20
Tài liệu Báo cáo khoa học: A point mutation in the ATP synthase of Rhodobacter capsulatus results in differential contributions of DpH and Du in driving the ATP synthesis reaction pptx
... lu219 and aHis245, including the f act that in the ATP synthases of mitochondria and of photosynthetic bacteria the position of these two amino acids in the primary sequence are inverted [24], the ... pronounced in thecaseofthemutant.Thelargedifferencerelativetothe wild-type can be best appreciated by taking the derivative of the fi tting f unctions of the mutant...
Ngày tải lên: 21/02/2014, 03:20