349 research outputs found
Performance Analysis of FLS, EXP, LOG and M-LWDF Packet Scheduling Algorithms in Downlink 3GPP LTE System
Clinical efficacy of Tila Taila Paada Abhyanga and Eye Exercises in the management of Timira w.s.r. to Simple Myopia
As the world is heading into this new era of digitalization, it is also dragging itself into the valley of diseases and the most apparent and direct ill effect of it can be seen on the health of the eyes. The diseases of eyes are very prevalently emerging in today’s time owing to its multiple abundantly found causative factors like absence of following healthy lifestyle, unhealthy/ improper diet, excessive screen time etc. The most common among the diseases of eyes are the refractive errors. Uncorrected refractive error is reported as the first cause for visual impairment. WHO states that uncorrected myopia is the most common cause for visual impairment. Ayurveda, the Science of Life explicitly talks about the structure of Eye, its Diseases, and the various measures and medications used to preserve the health as well as cure the Diseases of Eyes. Paada Abhyanga is one among them. All the Bhrihatrayees have mentioned about the positive effect of Paada Abhyanga on Eyes i.e., as Drishtiprasaadaka. Eye Exercises well known to reduce the constant Stress of the Eyes caused due to Myopia can be effectively adopted in the management of Myopia
Determinants of male participation in reproductive healthcare services: a cross-sectional study
Background
The role of male’s participation in reproductive healthcare is now well-recognized. The present study investigated the role of men in some selected reproductive health issues, characterizing their involvement, including factors influencing their participation in reproductive healthcare services.
Methods
This study was conducted in the working areas of urban and rural implemented by NGOs. The sample-size was determined scientifically. The systematic sampling procedure was used for selecting the sample. The study included 615 men aged 25-45 years. Bivariate analysis was performed between male’s involvement as the dependent variable with several independent variables. Logistic regression analysis was applied to assess the effects of risk factors on the participation of men in reproductive health care services.
Results
The mean age of the respondents was little over 34 years while their mean years of schooling was 3.7, and their mean monthly income was about Tk 3,400 (US$ 1 = Tk 70) at the time of the study. Rickshaw-pulling and driving was the main occupation of the respondents from the urban while farming were main occupation in the rural area respectively. About two-thirds of the respondents discussed reproductive health issues with their wives and accompanied them to healthcare facilities. The current contraceptive-use rate was 63% among the men who attended the evening clinics. Results of bivariate analysis showed a significant association with education, occupation, income, access to media, and number of living children. Results of logistic regression analysis showed that secondary to higher education level, number of living children, paid employment status, long marital duration, and access to media were important correlates of males’ involvement in reproductive healthcare services.
Conclusions
The results imply that a greater integration of reproductive healthcare matters with the Millennium Development Goals and increasing perception of men through enrollment in various components of reproductive activities will produce synergistic effects
Comparative Study on Priority Based QOS Aware Mac Protocols for WSN
n Wireless Sensor Network (WSN), QoS (Quality of S\ud
ervice) in sensor application plays a very importan\ud
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role. QoS based routing is required to ensure the b\ud
est use of nodes in WSN. In this paper, a comparati\ud
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study of QoS based routing in Media Access Control\ud
(MAC) protocols are presented based on the traits t\ud
o\ud
solve problems like prioritization, timeliness, rel\ud
iability etc. The study mainly focuses on some prio\ud
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based QoS protocols used in WSN and a comparison am\ud
ong them. The study reveals that among the five\ud
mentioned protocols; QMAC, PRIMA, DB-MAC, RAP, GTS;\ud
PRIMA shows the best performance in the\ud
category of Packet Prioritization, Scheduling Schem\ud
e, Queue Type, Energy Awareness and Qo
Comparative Analysis of Downlink Packet Scheduling Algorithms in 3GPP LTE Networks
Long Term Evolution (LTE) mobile network aims to support high speed network services even in highmobility scenarios. To achieve this goal, LTE adopts some advanced features in Radio Resource Management (RRM) procedures. Among them, LTE packet scheduling plays a fundamental role in maximising system performance. In this paper, a comparative analysis on the performances of Proportional Fair (PF), Exponential/Proportional Fair (EXP/PF), Exponential (EXP) Rule, MaximumLargest Weighted Delay First (M-LWDF), Logarithmic (LOG) Rule and Frame Level Scheduler (FLS) LTE downlink packet scheduling algorithms is reported. Performance is evaluated in single cell with interference environment while increasing user number and user speed. Results show that for multimedia flow, FLS scheme outperforms other five schemes in terms of packet delay, packet loss ratio, and average throughput, whereas for best-effort flow, EXP-PF scheme shows better average throughput performance on average as compared with other algorithms being considered herein
Packet Scheduling Study for Heterogeneous Traffic in Downlink 3GPP LTE System
Long Term Evolution (LTE) network deploys Orthogonal Frequency Division Multiple Access (OFDMA) technology for downlink multi-carrier transmission. To meet the Quality of Service (QoS) requirements for LTE networks, packet scheduling has been employed. Packet scheduling determines when and how the user’s packets are transmitted to the receiver. Therefore effective design of packet scheduling algorithm is an important discussion. The aims of packet scheduling are maximizing system throughput, guaranteeing fairness among users, andminimizing either or both PacketLoss Ratio (PLR)and packet delay. Inthis paper, the performance of two packet scheduling algorithms namely Log Maximum-Largest Weighted Delay First (LOG-MLWDF) and Max Delay Unit (MDU), developed for OFDM(Orthogonal Frequency Division Multiplexing)networks, has been investigated in LTE downlink networks, and acomparison of those algorithmswith a well-known scheduling algorithm namely Maximum-Largest Weighted Delay First(MLWDF) has been studied.The performance evaluation was in terms of system throughput, PLR and fairness index. This study was performed forboth real time (voice and video streaming)and non-real time (best effort)perspectives. Results show that for streaming flows,LOG-MLWDF shows best PLR performance among the considered scheduling schemes, and for best effort flows, it outperforms theother two algorithms in terms of packet delay and throughput
Baseline antenna design for space exploration initiative
A key element of the future NASA Space Exploration Initiative (SEI) mission is the lunar and Mars telecommunication system. This system will provide voice, image, and data transmission to monitor unmanned missions to conduct experiments, and to provide radiometric data for navigation. In the later half of 1991, a study was conducted on antennas for the Mars Exploration Communication. Six antenna configurations were examined: three reflector and three phased array. The conclusion was that due to wide-angle scan requirement, and multiple simultaneous tracking beams, phased arrays are more suitable. For most part, this report studies phased array antenna designs for two different applications for Space Exploration Initiative. It also studies one design for a tri-reflector type antenna. These antennas will be based on a Mars orbiting satellite
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