Usimulizi katika tamthilia za Kithaka wa Mberia

Makala haya yanachunguza mtindo wa usimulizi katika tamthilia za Kithaka wa Mberia na kutoa ufafanuzi wake. Tamthilia zenyewe ni Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). Vipera vya usimulizi vinavyo-chunguzwa ni methali, nyimbo/ngoma, sauti na hadithi. Usimulizi ni mbinu ya fasihi simulizi iliyo na jadi ndefu. Kutokana na msingi huu, wa Mberia alioanisha usimulizi na ujumbe wa tamthilia zake ana¬powasawiri wahusika wake kupitia matendo yao na mazungumzo yao jukwaani. Umuhimu wa matu¬mizi ya mbinu ya usimulizi katika tamthilia teule unaonekana kupuuzwa na wahakiki wengi. Kwa hivyo, madhumuni ya makala haya ni kuangazia umuhimu wa usimulizi katika usawiri wa maudhui mbalimbali na kuthibitisha kuweko kwa matumizi ya usimulizi katika tamthilia teule. Ni makala ambayo yatawafaidi wanafunzi katika vyuo vinavyotoa masomo ya fasihi. Makala haya yanamdhihi¬risha wa Mberia kama mtunzi shupavu, anayeteka makini ya hadhira yake kwa kuiwezesha kutafakari zaidi kuhusu masuala anayojadilia tamthiliani, kwa matumizi ya usimulizi.This paper analyses narrative style in Kithaka wa Mberia’s plays. The plays analysed are Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). The elements of narrative style analysed are proverbs, songs/dances, voice and epic. Narrative style has a long history in oral literature. It has been integrated into written literature and thus lost its initial outlook which had led to its disregard by many analysts in the past. The objectives of this essay are to discuss narrative style in the selected plays, and to show how it functions to create empathy on the part of the reader which helps her/him to internalyse the themes conveyed. Furthermore, this essay intends to stimulate further research on narrative style in Swahili drama

Corporate governance for state corporations: a case for the twotier board structure

Submitted in partial fulfillment of the requirements of the Bachelor of Laws Degree at Strathmore University Law SchoolState corporations are essential as they are mandated to provide public goods and services and cater to the general welfare of members of the public. State corporations in Kenya have served different purposes in different industries since their establishment during the colonial period. However, they have been plagued by a number of issues over the years, chief among them, mismanagement. Other issues that have arisen as a result of mismanagement include pilferage, wastage and bureaucracy. This has greatly undermined the achievement of their objectives. This paper seeks to investigate the suitability of applying the two-tier board structure to correct this corporate governance failure. The paper is anchored by the concept of governance and its important role in the management of a corporation. Corporate governance guidelines, frameworks and mechanisms are implemented to ensure that the management team of a corporation act and administer their duties in the interest of all stakeholders. With this in mind, the paper shall look into the state of state corporations in Kenya and the laws that govern their administration. It shall particularly look into the one-tier board structure, the rationale behind its use, its benefits and the shortcomings and how these shortcomings have undermined the activities of state corporations. The paper shall discuss the applicability of the two-tier board structure as a remedy to the corporate governance failures that plague state corporations. In order to do so, it shall delve into the application of the two-tier board structure in two jurisdictions; namely Germany and the Netherlands whose economic success can be partly attributed to the nature of their corporation laws. Finally, the paper shall give recommendations that can be tailored to meet the needs of Kenyan state corporations

Variation of Input Impedance with Feeding Position in Probe and inset-Fed Microstrip Patch Antenna

Proper impedance matching of a microstrip patch antenna to the feed line is paramount for efficient radiation. However, impedance matching in such a system is not easy and consequently most systems suffer from return losses. The variation of the input impedance of a probe-fed and inset-fed rectangular microstrip patch antennas along the longitudinal and transverse lengths is investigated on probe-fed and microstrip-fed antenna operating at 2.4GHz and 2.0GHz respectively. FEKO simulation software is used to evaluate and characterize the behaviour of the input resistance for varying values of feeding position. It is observed that the transverse variation in the input resistance is very minimal. The conclusion drawn here is that a cosine squared and shifted cosine squared function can be used to exactly locate the feed point in a probe and inset fed antennas respectively for an impedance matched antenna system.   Keywords: Longitudinal feeding position, FEKO, probe feeding, inset feeding, input impedance, return loss

Development of a Virtual Environment-Based Electrooculogram Control System for Safe Electric Wheelchair Mobility for Individuals with Severe Physical Disabilities

Conventional wheelchairs are predominantly manual or joystick-operated electric wheelchairs. However, operating these wheelchairs can be difficult or impossible for individuals with severe physical disabilities. Due to losing control of their physical limbs, they depend on an attendant for assistance. As a remedy, bio-signals may be used as a control mechanism since they are readily available and can be acquired from any body part. This research proposes to use EOG signals to vail a control mechanism and test it in a virtual and actual electric wheelchair. The main contribution of the study is an investigation of the use of EOG to control an electric wheelchair in a virtual environment to determine safe control parameters for wheelchair use in complex environments. A customized data acquisition circuit was developed to acquire single-channel EOG signals using wet electrodes. The acquired signal was filtered and processed using feature extraction and classification techniques in MATLAB software. Two customized control environments were developed in Unity 3D, one with equally partitioned sections and the other with sections decreasing in size as the robot wheelchair approaches the target. Twenty-two test subjects (mean age 24.5, std 1.5) participated in the study, controlling the robot wheelchair in real-time with non or least instances of collision and oversteering. The system achieved an accuracy of 96.5% with a response time of 0.7s, translating to an ITR of 70.6 bits/min. Overall, the participants managed to navigate the virtual environment with a completion time of 101.94s ± 19.71 and 109.07s ± 13.25 for the male and female participants, respectively. In the scene with decreasing section sizes, 72% and 54% instances of collision and oversteering were reported, respectively, highlighting the need to consider the complexity of the control environment and the sufficiency of the participants' control skills to ensure safety in operations. The results confirm the usefulness of EOG as a control interface, with little or no need for recalibration. It provides a promising avenue for individuals with severe physical disabilities to operate wheelchairs independently in complex environments, enhancing their quality of life

A Hybrid Technique for Fault Classification and Location in a Jointed Overhead-Underground Distribution Line

The electrical distribution system is crucial for the utility grid to transmit power from generators to consumers. Considering the intricate structure of distribution systems and their significant role in power networks, establishing a robust fault classification and location scheme is vital. Due to ageing, distribution systems are often prone to faults from factors like poor operational conditions and wear and tear. The line faulting rate and the pertinent restoration epochs influence the frequency and duration of power disruptions. Thus, precisely locating the fault section is essential to minimize power restoration timeframes. This paper presents a hybrid fault classification and location technique in a combined continuous overhead and underground distribution line. A simulation of the hybrid model was designed in Simulink for an 11 kV combined continuous overhead and underground electrical distribution line, considering short circuit faults as they are the most predominant and cause massive damage in distributed systems. The proposed technique first classifies the fault using Discrete Wavelet Transforms (DWT) and Multi-layer Perceptron-Artificial Neural Networks (MLP-ANN). Next, the impedance and Adaptive Neuro-Fuzzy System (ANFIS) based technique is employed for fault location. At a sample rate of 50 kHz, the DWT was applied to current signals and the coefficients used for ANN training, while phase impedance values were used as input to the ANFIS for training. The simulation results showed accuracy of 96.6% for fault classification and 99.17% for fault location. The developed models can significantly enhance fault location for speedier outage resolution by promptly repairing the affected distribution lines

Autonomous Movement Control of Coaxial Mobile Robot based on Aspect Ratio of Human Face for Public Relation Activity Using Stereo Thermal Camera

In recent years, robots that recognize people around them and provide guidance, information, and monitoring have been attracting attention. The mainstream of conventional human recognition technology is the method using a camera or laser range finder. However, it is difficult to recognize with a camera due to fluctuations in lighting 1), and it is often affected by the recognition environment such as misrecognition 2) with a person's leg and a chair's leg with a laser range finder. Therefore, we propose a human recognition method using a thermal camera that can visualize human heat. This study aims to realize human-following autonomous movement based on human recognition. In addition, the distance from the robot to the person is measured with a stereo thermal camera that uses two thermal cameras. A coaxial two-wheeled robot that is compact and capable of super-credit turning is used as a mobile robot. Finally, we conduct an autonomous movement experiment of a coaxial mobile robot based on human recognition by combining these. We performed human-following experiments on a coaxial two-wheeled robot based on human recognition using a stereo thermal camera and confirmed that it moves appropriately to the location where the recognized person is in multiple use cases (scenarios). However, the accuracy of distance measurement by stereo vision is inferior to that of laser measurement. It is necessary to improve it in the case of movement that requires more accuracy

Analysis of Exhaust Gas Heat Utilization in Waste Heat Recovery Power Generator at Indarung V Factory PT Semen Padang

Increasing energy efficiency in the cement production process at PT Semen Padang is carried out by reusing exhaust gas to produce electricity using Waste heat recovery power generation (WHRPG) with a capacity of 8.5 MW. WHRPG is a technology for utilizing exhaust gas heat as a source of heat energy to heat feed water into steam by using a suspension preheater (SP) boiler and air quenching cooler (AQC) boiler. This study aims to calculate the power potential of the steam heat influenced by the steam temperature and the mass flow rate of the steam produced by the boiler, to calculate the efficiency of the boiler using the direct method by comparing the boiler output heat against the boiler input heat, to calculate the turbine efficiency based on the difference between the steam enthalpy enter the turbine against the steam enthalpy out of the turbine and the isotropic enthalpy of the steam out of the turbine and to calculate the power generated by WHRPG at PT Semen Padang. The results obtained in this study are the total potential power of steam heat is 19.778 MW, the boiler AQC efficiency is 70.30%, the boiler SP efficiency is 94.04% and the turbine efficiency is 78.64%. The electricity generated by PT Semen Padang's WHRPG is 3.70 MW

Estimation of the Shoulder Joint Angle using Brainwaves

This paper presents the angle of the shoulder joint as basic research for developing a machine interface using EEG. The raw EEG voltage signals and power density spectrum of the voltage value were used as the learning feature. Hebbian learning was used on a multilayer perceptron network for pattern classification for the estimation of joint angles   0o, 90o and 180o of the shoulder joint. Experimental results showed that it was possible to correctly classify up to 63.3% of motion using voltage values of the raw EEG signal with the neural network. Further, with selected electrodes and power density spectrum features, accuracy rose to 93.3% with more stable motion estimation

Usimulizi katika tamthilia za Kithaka wa Mberia

Makala haya yanachunguza mtindo wa usimulizi katika tamthilia za Kithaka wa Mberia na kutoa ufafanuzi wake. Tamthilia zenyewe ni Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). Vipera vya usimulizi vinavyo-chunguzwa ni methali, nyimbo/ngoma, sauti na hadithi. Usimulizi ni mbinu ya fasihi simulizi iliyo na jadi ndefu. Kutokana na msingi huu, wa Mberia alioanisha usimulizi na ujumbe wa tamthilia zake ana¬powasawiri wahusika wake kupitia matendo yao na mazungumzo yao jukwaani. Umuhimu wa matu¬mizi ya mbinu ya usimulizi katika tamthilia teule unaonekana kupuuzwa na wahakiki wengi. Kwa hivyo, madhumuni ya makala haya ni kuangazia umuhimu wa usimulizi katika usawiri wa maudhui mbalimbali na kuthibitisha kuweko kwa matumizi ya usimulizi katika tamthilia teule. Ni makala ambayo yatawafaidi wanafunzi katika vyuo vinavyotoa masomo ya fasihi. Makala haya yanamdhihi¬risha wa Mberia kama mtunzi shupavu, anayeteka makini ya hadhira yake kwa kuiwezesha kutafakari zaidi kuhusu masuala anayojadilia tamthiliani, kwa matumizi ya usimulizi.This paper analyses narrative style in Kithaka wa Mberia’s plays. The plays analysed are Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). The elements of narrative style analysed are proverbs, songs/dances, voice and epic. Narrative style has a long history in oral literature. It has been integrated into written literature and thus lost its initial outlook which had led to its disregard by many analysts in the past. The objectives of this essay are to discuss narrative style in the selected plays, and to show how it functions to create empathy on the part of the reader which helps her/him to internalyse the themes conveyed. Furthermore, this essay intends to stimulate further research on narrative style in Swahili drama

Usimulizi katika tamthilia za Kithaka wa Mberia

Makala haya yanachunguza mtindo wa usimulizi katika tamthilia za Kithaka wa Mberia na kutoa ufafanuzi wake. Tamthilia zenyewe ni Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). Vipera vya usimulizi vinavyo-chunguzwa ni methali, nyimbo/ngoma, sauti na hadithi. Usimulizi ni mbinu ya fasihi simulizi iliyo na jadi ndefu. Kutokana na msingi huu, wa Mberia alioanisha usimulizi na ujumbe wa tamthilia zake ana¬powasawiri wahusika wake kupitia matendo yao na mazungumzo yao jukwaani. Umuhimu wa matu¬mizi ya mbinu ya usimulizi katika tamthilia teule unaonekana kupuuzwa na wahakiki wengi. Kwa hivyo, madhumuni ya makala haya ni kuangazia umuhimu wa usimulizi katika usawiri wa maudhui mbalimbali na kuthibitisha kuweko kwa matumizi ya usimulizi katika tamthilia teule. Ni makala ambayo yatawafaidi wanafunzi katika vyuo vinavyotoa masomo ya fasihi. Makala haya yanamdhihi¬risha wa Mberia kama mtunzi shupavu, anayeteka makini ya hadhira yake kwa kuiwezesha kutafakari zaidi kuhusu masuala anayojadilia tamthiliani, kwa matumizi ya usimulizi.This paper analyses narrative style in Kithaka wa Mberia’s plays. The plays analysed are Natala (1997), Kifo Kisimani (Death at the Well, 2001) na Maua Kwenye Jua la Asubuhi (Flowers in the Morning Sun, 2004). The elements of narrative style analysed are proverbs, songs/dances, voice and epic. Narrative style has a long history in oral literature. It has been integrated into written literature and thus lost its initial outlook which had led to its disregard by many analysts in the past. The objectives of this essay are to discuss narrative style in the selected plays, and to show how it functions to create empathy on the part of the reader which helps her/him to internalyse the themes conveyed. Furthermore, this essay intends to stimulate further research on narrative style in Swahili drama