Scientific Research and Essays

Nowadays, bullet train service stations often suffer from the phenomenon of low operating efficiency due to the unreasonable arrangement of bullet trains that stay in service stations for too long. In order to solve this problem, based on the information of bullet train arrival in two periods of a bullet train service station, this paper comprehensively considered the input source, queuing rules and overhaul intensity of the train service system, determined the objective function and multiple constraint conditions, and established the 0-1 programming model and Uncorrelated Parallel Machine Optimization Model. The model established in this paper can relieve the load pressure of bullet train service station to a great extent, improve the operation efficiency of the service station under the condition of ensuring the maintenance quality of bullet train, and provide theoretical basis for realizing the shortest maintenance time of bullet train service station.

Introduction Benzodiazepines (BZD) are drugs that act directly on the central nervous system, altering cognitive and psychomotor aspects. In Brazil, it is the third class of most prescribed drugs, being used by approximately 4% of the population. The restricted, rational and short-term use of benzodiazepines is not observed on a large scale by professionals who attend the Ipaumirim Family Health Strategy, due to the high number of people who just want the revenue renewal. General Objective: To develop an action plan to promote the reduction of drug abuse controlled by users of the Ipaumirim Family Health Strategy – CE. Methodology: This is an intervention project that consists of an action proposal to face a real problem. The interventions were performed at the Basic Health Unit of Ipaumirim – CE, from June 18 to August 16, 2018 with evaluation every three months, with 36 users. Identification was performed through medical records, interviews in routine consultations. Results: the lack of information from users was clear, resulting in changes in actions involving primary care to alternative treatments such as physical activity, food reeducation and psychotherapy, stimulating actions such as the booklet, an organizational basis, since it does not have the horus system. Conclusion: the study effectively allowed the development of a new health promotion strategy.

The proportion of on-site mixed emulsion explosives in mining is getting higher and higher, in order to better use the explosive performance of mixed explosives to improve energy utilization. Based on the wave impedance theory, the wave impedance of mixed explosives is changed to make rocks The wave impedances are matched to achieve the purpose of improving the blasting effect and reducing the bulk rate. After field test, increasing the sensitizer content within a certain range is beneficial to the improvement of explosive performance. When the explosive sensitizer content is 1.15%, the best matching coefficient of mixed explosive and rock impedance is 2.51, the rock after blasting is large. The block rate is reduced and the rock crushing effect is better. After this matching test, it is shown that it is feasible to improve the blasting performance by adjusting the explosive performance of the explosive by the optimal wave impedance coefficient according to the hardness of the rock, which can provide reference for the peers.

During the ship’s voyage, the propeller jet affects the movement of silt at the bottom of the bed. To research the influence of the bottom boundary on the propeller jet field, this paper takes the standard propeller DTRC4119 propeller as the research object and uses the CFD software Star-ccm+ to carry out a numerical simulation of the propeller jet under uniform flow. The flow velocity distribution of the jet under four operating conditions is mainly analyzed, including the axial velocity, tangential velocity and radial velocity of the jet. The results show that the distance between the propeller and the boundary does not affect the magnitude and distribution of the velocity on the initial plane but affects the shape of the axial velocity and the velocity on the central axis in the development zone; The closer to the bottom boundary, the greater the disturbance of tangential velocity and radial velocity, the peak value of tangential velocity will be affected and changed from central symmetry of velocity to unanimous trend earlier. The radial velocity contributes less to the overall velocity and can be ignored

To solve the problem of transferring the workpiece to the next process, design a gas-electric hybrid workpiece transfer machine. The mechanical structure of workpiece transfer in automatic production line is discussed. The transfer of workpiece can be realized by pulse motor, pneumatic system is used to clamp and lift the workpiece,and design this system, analyze the principle of pneumatic system and design the PLC circuit. The results show that the designed device has the characteristics of simple structure, operability and practicability.

This paper reviews the cognitive mechanisms underlying visual search in complex visual images. Visual search is a type of task that we are constantly engaged in our everyday lives. Here, the current paper introduces the current literature that suggests that there are two different processing routes that support visual search in human observers: Bottom-up and Top-down processing. Bottom-up processing allows the visual system to process the sensory information from the visual image as it is, whereas top-down processing guides the visual system to efficiently allocate attention to a part of the image to facilitate the search process. The two processing routes via bottom-up and top-down processing work in concert during complex visual search, guiding our search behavior to be more efficient and adaptive. In closing remark, this review also briefly discusses how the current knowledge about the roles of bottom-up and top-down processing in visual search can contribute to development of computer vision and artificial intelligent.

Globally, business organizations recognize that engaging human resource management practices on an international standard is imperative. But realizing target performance from just scarce resources is a challenge to most organisations. Many organisations are continuously spending time trying to control and master change making them losers. With the current practice, HR has not been able to deliver on training line management in methods of achieving high employee production. This paper investigated the Influence of Elements of Work Realities on HRD Mandate Capability in Banking Organisations in Nairobi County, Kenya. The main objectives pursued included to establish the relationship between employer-employee champion and HRD mandate capability in Banking Organisations in Nairobi County, Kenya; to determine the association between continuous transformation agent and HRD mandate capability in Banking Organisations in Nairobi County, Kenya. A survey of banking institutions was used while a questionnaire and interview schedule and content analysis were used to gather primary data. The target population was 850 and a sample size of 272 was used. Statistical analysis was done using Statistical Package of Social Sciences (SPSS) current version. The findings confirmed that there are problems facing human resource mandate delivery capability. It was concluded that all the two elements of work realities have significant influence on HR mandate delivery capability. It was therefore recommended that organisations need to consider factors such as employer-employee champion and continuous transformation agent elements which are capable of influencing HR mandate delivery capability. Human resource should therefore discontinue their non-value adding traditional practices to service delivery.

The paper discusses a unique technique developed initially at Nation Institute of Technology, Surat that is remodeled in real world applications. The concept consists primarily of a user-friendly software facilitating direct communication with any intelligent or learning system/robot operating under known parameters of motor specifications. Any software base permitting high level PC interface without ASCII interrupt can be used and here Visual Basic is represented for easy programing. This allow for a learning operation mode where a prevention of time lag implementation stores machine data based on movements by the machine stored or actions taught. Such learning aspects make the machine more efficient where the robot can either perform individual actions as needed or learn new methods for the same results and can perform a series of actions continuously. Using the stored data, the machine is also capable of autonomous movements based on the path of least resistance as calculated by the time it takes to perform an act. Unlike the ALPHA model, new and improved model is tested on a CNC 6 axis manufacturing machine This paper focuses on methodology of interface through VB programing and does not contain associated files to retain any possible patent applications.

Sustainable management and resilience of ecosystems and their different services from land, water, biodiversity and forests has been highlighted as a means to address environmental degradation in Tanzania. On contrary, there is in adequate information to aid sustainable management of fragile natural resources such as Rufiji Delta. To address the limitation this research was carried out using Landsat data for appraising and simulating the future situation of Rufiji Delta using CA-Markov model. Maximum Likelihood Classification algorithm in ERDAS Imagine software was used for Landsat image classification and accuracy assessment for year 1998, 2008 and 2018 while Ca-Markov model of IDRIS Selva software was used for quantification of LULC change and simulation, correspondingly. The classification results of four different study periods have depicted the quantity land use land cover status in year 1998, 2008 and 2018. In year 1998 the impervious land cover was the largest class with 53413.40 ha (35.74% composition), followed by water bodies with 42506.10 ha (28.44% composition) while mangrove forest and non-mangrove vegetation consisted of 38060.40 ha (25.47 % composition) and 15468.50 ha (10.35% composition), correspondingly. In year 2018 the impervious land cover increased to 60759.70 ha (40.66% composition) while mangrove forest and non-mangrove vegetation consisted of 35062.2 ha (23.46% composition) and 23019.2 ha (15.40% composition), correspondingly. Water bodies declined to 30607.10 ha (20.48% composition) following the consumption of water in hydro-electrical and agricultural expansion proximal to the Rufiji Delta. In year 2048 a notable decline to about 29757.07 ha, (18.91%), 34891.44 ha (21.35were recorded for mangrove forest and water bodies, correspondingly. The ongoing harvesting and clearing of mangrove forest for construction and other local use purpose. Substantial increase in area non-mangrove vegetation and impervious land cover was estimated to 22507.20 ha and 62292.84 ha, correspondingly. Agro afforestation, forestry farming, Agro-Zonation, adoption of AFOLU and LULCF programs…

In this study, we examined the challenges of modeling infectious diseases using tuberculosis (TB) as a case study. The tuberculosis and tuberculosis co-infected with Human Immuno Virus (HIV) is one of the common health problems in the world. Time-to-event outcomes are common data type in medical research. The data examined time until a patient is cured of the disease having some patients right censored. With the nature of the data, the appropriate analysis is survival analysis method. The study aims at fitting appropriate models to the TB and TB/HIV co-infection data examining age and gender as factors influencing the cure rate of the disease. Hence, Kaplan-Meier estimation, Cox PH and some parametric models were adopted in the study. The result shows that among the parametric models, generalized gamma fit TB data best and there is no significant difference in the survival rate of male and female while gamma fit TB co-infected with HIV best and there is a significant difference in the male and female patient. However, Cox PH model (having smaller AIC) performs better than all the parametric models considered (for both data) in this study though with the same conclusion.