Bit error rate analysis of WiFi and WiMax

Bit error rate analysis of WiFi and WiMax

Автор:

In recent years, Wireless Local Area Networks (WLANs) has become a promising and successful technology. It provides free wireless connectivity between two or more devices by using a wireless communication method. It offers an easy and viable access to the network. The initial version of WiMAX 802.16-2004 operated at high frequency range use certain type of antenna mounted on WiMAX base station and subscriber station to provide data in line of sight manner. To overcome these limitations we use scalable OFDMA with MIMO technology to support wide range of bandwidth by varying the size of FFT. In this book, MATLAB coding is used to calculate the bit error rate for different extensions of IEEE 802.11 and IEEE 802.16e system model that minimize the number of communication errors. Here we have used different modulation schemes and OFDM technique to obtain higher data rate and achieve best bit error rate. It represents simulation result of IEEE 802.11 extensions and 802.16e PHY layer model.

House of Secrets: Battle of the Beasts

House of Secrets: Battle of the Beasts

Автор:

Since the siblings’ last adventure, life in the Walker household is much improved — the family is rich and the Wind Witch is banished. But no Walker will be safe until she is found, and summoning her to San Francisco brings all the danger that comes with her and sends the Walkers on a mysterious journey through Denver Kristoff’s books. As the Walkers travel from ancient Rome to World War II to Tibet, they’ll be tested — by Denver Kristoff, the Wind Witch, and each other — in ways that cut deeper than before. Fantasy fiction fans who enjoy Rick Riordan will find much to love in this thrilling and action-packed novel!

Экономический анализ

Экономический анализ

Автор: В. В. Панков, Н. А. Казакова

Учебное пособие содержит теоретический курс экономического анализа, а также практические задания, отражающие хозяйственные ситуации в деятельности предприятий различных типов. К каждой теме даны контрольные вопросы и тесты для проверки знаний. Пособие нацелено на выработку практических навыков проведения экономического анализа, включая отбор аналитической информации и ее оценку для реализации экономической политики, подготовки и принятия обоснованных управленческих решений, планирования и контроля функционирования бизнеса. Для студентов, магистров, аспирантов и преподавателей экономических вузов, научных и практических работников, специализирующихся в области экономического анализа.

Anti-malaria Drugs and Plasmodium falciparum Gametocytes Prevalence

Anti-malaria Drugs and Plasmodium falciparum Gametocytes Prevalence

Автор:

We monitored post-treatment Plasmodium falciparum among patients treated with chloroquine (CQ) and Fansidar (SP) in a village in eastern Sudan. Parasites were examined on day0, day7, day14 and day21 during the transmission season. A further sample was taken 2 months later (day80) at the start of the dry season. Asexual forms and gametocytes were detected by microscopy,and reverse transcriptase polymerase chain reaction (RT-PCR) was used to detect expression of gametocyte-specific proteins pfs25 and pfg377. Microscopic gametocytes increased significantly following CQ and SP treatment, reaching a maximum between days7 and14. When measured by RT-PCR, however, there was no significant difference in gametocyte rate between day0 and days7 or 14. RT-PCR gametocyte rates dropped dramatically by day80 post treatment but were still 33% and 8% in the CQ- and SP-treated groups at this time. Drug resistance alleles to CQ (pfcrt,and pfmdr1) and to SP (dhfr) were seen at a high frequency at the beginning of treatment and increased further through time following both drug treatments. Infections with drug-resistant parasites tended to have higher gametocyte prevalence than drug-sensitive infections

The relationship b/n Leadership Styles & Employee Commitment in PHEIs

The relationship b/n Leadership Styles & Employee Commitment in PHEIs

Автор:

The effective leaders are enablers that directly points to competent and committed employees. Studies in the organizational psychology and organizational behavior literatures have shown that leadership styles and employee commitment are of major factors to the organizational success or failure. The purpose of this study was to investigate the relationship between leadership styles (transactional, transformational, and laissez-faire) and employee commitments (affective, continuance, and normative commitment) in Private Higher Education Institutions (PHEIs) at Addis Ababa City. By using stratified and simple random sampling techniques, 115 participants- included 95 academic staff and 20 leaders- were involved in a research from purposively selected 12 PHEIs with a non-response rate of 27.7%. Two separate instruments, namely multifactor leadership questionnaire (MLQ) and organizational commitment questionnaire (OCQ), were used to measure leadership styles and employees’ organizational commitment respectively. The survey data was processed using an SPSS (version 16).

BORN TO BE WILD

BORN TO BE WILD

Автор:

Build it. Run it. Rule it. Rick and Evie Lane built the eighth continent. They ran after it and rooted it to the ocean floor. And they now believe that it will be theirs to rule forever. But Winterpole has one more trick up its sleeve: the Lanes must get a Certificate of Occupancy in order to populate their new land. And until the Lanes get it, the land beneath their feet really isn’t their own. How to get this certificate? More building! In order to prove to Winterpole that the eighth continent is fit for large-scale human habitation, the Lanes must rush to create the kind of infrastructure needed to support life—hospitals and homes; schools and (shocker!) government buildings. But the Lanes aren’t the only ones engaged in this race for space. Condo Corp secret CEO Vesuvia Piffle recognizes this as her opportunity to snag the eighth continent for herself once and for all. If she can knock down enough of the Lanes’ buildings and construct perfect, pink, plastic ones in her image, the eighth continent might just be hers to make all sugary sweet and spider-free. That, of course, is the last thing that the Lanes want; and so they must use every resource at their disposal to ensure that their precious eighth continent remains as natural—and wild—as they are. Just as it was born to be.

Spatial Dynamics of Producer Services-Ankara Case

Spatial Dynamics of Producer Services-Ankara Case

Автор:

In the last three decades, each urban function can locate to any zones of a city due to communication technology-based connections, in a so called deterritorialization. These new sprawl-based locations can be seen in the CBDs of cities, especially by producer service functions. This thesis will investigate the validity of deterritorialization-based post-modern theoretical studies concerning recent transformation of CBDs based solely on the Western city, with reference to the distribution of such activities in Ankara and its CBD structure. Producer services can be used to test the space relations of urban functions due to their complexity and more flexible connection capacities. For this purpose, first the concepts and the fields of concepts that are based on CBDs and producer services are examined. Thereafter, these frameworks are tested in a comprehensive evaluation. The relations between urban space and the locational preferences of producer services in Ankara are assessed to illustrate the reterritorialization-based movements. Finally, the implications and contributions of the study and also suggestions for possible further studies are presented as concluding remarks.

Маша — звезда наша. Книга 1. Маша и Позитивный мир

Маша — звезда наша. Книга 1. Маша и Позитивный мир

Автор: Гаврилова А.С.

Когда Маша, заядлая любительница романтического фэнтези, оказалась в другом мире, посреди степи и совершенно голой, испугаться даже не подумала. Ведь совершенно очевидно, что ничего дурного с ней не случится, более того… ее обязательно спасут! Посадят на огромного коня и увезут в роскошный дворец. Оденут в шелка, накормят изысканными блюдами и непременно возьмут в жены.Или даже лучше! Назовут сокровищем племени и будут носить на руках. А любому, кто посмотрит косо, обязательно настучат по шее. Ну а как иначе? Ведь мир, куда она попала, точно позитивный. Главное, верить в это и никогда, ни при каких обстоятельствах не терять оптимизма!

Старая проза

Старая проза

Автор: Сергей Магид

Эта проза написана в Праге, в 1995-1997 гг., и по структуре своей задумана как маленькая «йокнапатофская» сага. Жизнь героя рассматривается на разных временных этапах, среди разных людей и в разных обстоятельствах, на первый взгляд совершенно не связанных друг с другом: в проекте до зачатия, в отрочестве, в армии, в Ленинграде, в эмиграции… В процессе повествования возникает одна из самых трагических проблем нашего, да и любого, времени — проблема изгнания. В жизни героя, — независимо от его воли, желаний, стремлений, планов на будущее, — причиной изгнания становится расизм. Расовый вопрос в русской жизни здесь понимается не как этническая трагедия, а как экзистенциальная ситуация, которую герой должен для себя решить, — или погибнуть. При этом обе возможности могут сосуществовать одновременно, и постоянное пребывание в них и с ними может стать способом жизни… Отдельные тексты этой книги были изданы в разных странах и в разное время, частью в переводах на чешский и сербскохорватский языки, некоторые появились в Сети и повисли в ней… Как цельное повествование эта маленькая сага-архетип, подобная личным «сагам» многих современников ее героя, выходит впервые, — почти через двадцать лет после того, как она была написана, — и на родине автора. Чудеса совершаются.