Cutting technic for Pinus elliottii plantation of the multi-benefit management pattern

The cutting technic for thePinus elliottii plantation of the multi-benefit management pattern in the hilly region of Jiangxi Province was studied by establishing the model of growth progress according to Richards function and simulating the tending cutting on computer by use of dynamic programming. The results showed that the best time for the initial thinning was at tree age of 8–10 and final cutting was at tree age of 25. The optimal thinning project was 3 times of thinning cutting including the first thinning, and the thinning time was at tree ages of 8, 12 and 16, respectively. Their thinning intensities were separately 950, 700 and 300 trunks per hectare, and the preserved density was 550 trunks per hectare until the final cutting Keywords Pinus elliottir - Multi-benefit management pattern - Richards function - Cutting technic - Dynamic programming CLC number S757.4 Document code A Foundation item: This study was supported by Natural Science Foundation of Jiangxi Province (A grant 0330023)Biography: WANG Qing-chun (1970-), male, Ph. Doctor, Senior Engineer in Academy of Forest Inventory & Planning, Jiangxi, Nanchang 330046, P.R. China.Responsible editor: Song Funan

Patterned catalyst layer boosts the performance of proton exchange membrane fuel cells by optimizing water management

Mass transport is crucial to the performance of proton exchange membrane fuel cells,especially at high current densities.Generally,the oxygen and the generated water share same transmission medium but move towards opposite direction,which leads to serious mass transfer problems.Herein,a series of patterned catalyst layer were prepared with a simple one-step impressing method using nylon sieves as templates.With grooves 100μm in width and 8μm in depth on the surface of cathode catalyst layer,the maximum power density of fuel cell increases by 10%without any additional durability loss while maintaining a similar electrochemical surface area.The concentration contours calculated by finite element analysis reveal that the grooves built on the surface of catalyst layer serve to accumulate the water nearby while oxygen tends to transfer through relatively convex region,which results from capillary pressure difference caused by the pore structure difference between the two regions.The separation of oxidant gas and generated water avoids mass confliction thus boosts mass transport efficiency.

Research on the Effectively Building Patterns of Talent Incentive and Cultural Atmosphere for Modern Enterprise Management

In this paper, we conduct research on the effectively building patterns of talent incentive and cultural atmosphere for modern enterprise management. Targeted incentive direction refers to the motivation, namely, to what kind of content to implement incentive. It has signifi cant effect on incentive effect. According to American psychologist Maslow’s hierarchy of needs theory, people’s behavior motives originated in fi ve kinds of need, namely: the physiological needs, security needs, belonging needs, respect for the needs and the self-actualization needs. People need not set in stone, which is a developing process from low to high, but the process is not a cascade of discontinuous jumping, but a continuous, the evolution of wave. Under this general basis, we propose the cultural atmosphere for modern enterprise management that is novel and innovative.

Landscape pattern and its effect on ecosystem functions in Seoul Metropolitan area:Urban ecology on distribution of the naturalized plant species

During land transformation process in the human history, naturalized plants were introduced to several land use patterns by the different ways of plant itself. Including some naturalized plants that had been contribute to land restoration, many naturalized plants have been invaded to original habitat or landscape for native plants. Once the plants were colonized, they extend their area and population size. Urban developed areas often give an important role of source habitat for naturalized plants and expanding their population size. In recent, this situation is appearing as one of environmental problems about the urban landscape management controlling the naturalized plants that invaded in the developed area and conserving the native vegetation. This paper is focusing on relationships between distribution of habitat of naturalized plants and landscape patch in urban area in Seoul. Gangdong-Gu, one of the administrative areas in Seoul was selected for this study. We examined the recent land use change using LANDSAT TM data and spreading of the representative naturalized plants (Robinia pseudoacacia and Eupatorium rugosum) by Seoul Biotope Mapping Project and field survey in 1999. As a result, these two species were often occurred in the same habitat and distributed in forest edge disturbed by man. Their distribution patterns were related to landscape indices (patch size and shape) in the forest edge.

Combined Effect of Nutrient and Pest Managements on Substrate Utilization Pattern of Soil Microbial Population in Hybrid Rice Cropping System

A field experiment was conducted to study the combined effect of nutrient andpest managements on soil biomass phospholipid contents, functional biodiversity and substrateutilization patterns of soil microbial populations in hybrid rice cropping system. The mineral N, Pand K fertilizers (as urea, calcium superphosphate and KCl respectively) were incorporated at 100,25, and 100 kg ha^(-1), respectively, and the various pesticides were applied at the recommendedrates. The results of the experiment demonstrated a decline in the microbial abundance and soilmicrobial biomass phospholipid contents with the advancement of crop growth, and significant changesin substrate utilization pattern of soil microbial population studied were observed with differentmanagement practices and at different growth stages. The principal component analysis (PCA) usingall 95-carbon sources (BIOLOG plates) gave good differentiation among the treatments, indicatingthat they have different patterns of carbon utilization under different habitats. The data showedthat diversity in microbial community continuously changed with the progression in crop stage,particularly at physiological maturity (PM) stage that was evident from the utilization of differentcarbon sources at various crop stages.

Long-term follow-up of antithrombotic management patterns in patients with acute coronary syndrome in China

Objective To describe the long-term antithrombotic management patterns(AMPs)and clinical outcomes of Chinese patients with acute coronary syndrome(ACS).Methods This was an observational,multicenter,longitudinal cohort extension study of Chinese patients who had completed the EPICOR Asia 2-year follow-up study post-hospitalization for an ACS event.Changes in AMP and clinical outcomes for up to 5 years post-ACS event were evaluated.Results Overall,2334 patients with ACS were enrolled at 49 sites.The mean age was 61.6 years and 76.3%were men.By study end,2093 patients completed the 3-year follow-up.At baseline(2 years post-ACS event),72.4%of patents received one antiplatelet(AP)medication,with aspirin being the preferred one.A small proportion of patients(21.5%)was treated with two or more APs(2+AP),and even fewer patients(6.1%)did not receive any AP medication at baseline.Upon study completion,the proportion of patients without AP therapy increased to 13.6%,while the percentage of patients on one AP and 2+AP decreased to 69.3%and 17.1%,respectively.Numerically,a higher incidence of clinical events(composite of all-cause mortality,myocardial infarction,stroke)was observed for the 2+AP(13.2%)subgroup than for the no AP(10.5%)and one AP(8.6%)subgroups.Furthermore,the 2+AP subgroup exhibited the greatest number of bleeding events,outpatient visits,and hospitalization rates.Unlike myocardial infarction or stroke,bleeding events prompted an adjustment in AMP.Conclusion Most patients in China received at least one AP medication up to 5 years after an ACS event.

The Planning, Organization and Management of Post-disaster Reconstruction of the Lushan Earthquake Based on the Local as the Main Body

A new organization and management mechanism with the local government as the main body was created during the post-disaster reconstruction of the "4. 20 " Lushan earthquake,in which the experiences and lessons were drawn from the "5. 12"Wenchuan earthquake. Correspondingly, the local government conducted an exploration of the organization and management mode in the field of planning and construction. The effective experiences have been accumulated, including working out a full coverage planning,taking the leading part in the urban-rural planning,and exercising whole space control over the disaster area. An innovation management mode named as "Five Generals Pattern"was implemented in the construction projects. In view that the rural housing reconstruction was a weak link, a new approach to improving the construction management was investigated,by means of strengthening on-site supervision,establishing a technical platform,and bolstering public participation.

The Management Pattern Carried Out in a Cataract Surgery Day Ward

Purpose: To evaluate the management practice and process of a cataract surgery day ward. Methods:From January to December in 2012,a portion of the cataract patients were evaluated for the pattern of day ward management.Methods were as follows:1).Establish the cataract day ward. 2) Enroll the patients who met the following criteria: voluntary, local residents or outsiders who stayed in a hotel near the hospital, accompanied by family, and who had simple senile cataract without any systemic major diseases. 3) Establish the hospitalization process. 4) Analyze the nursing process. After cataract day surgery, the patients were followed for 2 hours and completed a questionnaire about their needs and sentiments. Results: A total of 3971 cases were observed in this study; 49 cases were switched to a normal pattern of hospitalization because of operative complications, 1 case had a strong desire to switch to a normal pattern of hospitalization because of ocular discomfort,8 cases went back to the hospital for treatment because of ocular pain,and 52 cases called on the phone to seek help. Overall, 3820 cases (96.2%) returned on time the next day to visit the doctor.No patients showed severe postoperative complications and 98% expressed great satisfaction with the day ward process.Only 200 cases expressed great concern about not knowing how to deal with postoperative pain,the changes in condition outside the hospital, the therapeutic effects,and the problem of expense reimbursement. Conclusion: Day ward cataract surgery is an efficient and safe mode, and has the potential to relieve the demand for inpatient beds and to ensure timely treatment of the patients. In addition,it helps the patients enjoy health care at public expense,reserving reimbursement for those who need to be hospitalized.Nurses should pay more attention to systemic evaluation of the patients, health education, and psychological guidance,and keep in close communication with doctors, which is the key to ensure the safety of day ward practice.

Contemporary Patterns of Management of Tetralogy of Fallot:Data from a Single Center in China

Background:There is scarce research on large cohorts with tetralogy of Fallot(TOF)from China.The database in Fuwai Hospital was reviewed to ascertain current trends in the management of TOF and to determine the prevalence of various surgical techniques and the optimal early outcome.Methods:This cross-sectional study included 1861 patients who underwent surgery between 2012 and 2017 and were aged 0-18 years old with a primary diagnosis of TOF.A total of 1760 eligible patients were included in the analyses.Results:A total of 1683 patients underwent repair of TOF as a one-stage operation(primary repair).Sixty-one patients underwent repair of TOF after prior palliation.Of patients who underwent one-stage repair(n=1683):858 were 6 months to 1 year old,421 were 1 to 2 years old,251 were 2-18 years old,and 145 were 3 to 6 months old.Of patients who underwent repair following prior palliation(n=61),58(95.1%)were older than 1 year of age.Of 1744 complete repairs,986(56.0%)had annulus-sparing(AS)repair.Total in-hospital mortality was 15 of 1744(0.9%)for complete repair(including one-stage and staged repairs).The total incidence of the optimal early outcome was 78.2%in terms of a composite of the absence of death in the first year,significant right ventricular outflow tract obstruction,significant pulmonary valve insufficiency,or catheter or surgical reintervention.Conclusions:Surgical correction in patients with TOF can achieve an acceptable outcome in terms of death and reintervention.Primary repair at 6 months to 1 year of age is the most prevalent strategy in our centre.However,the relatively high incidence of early undesirable surgical adequacy of the pulmonary valve(PV)represents a wake-up call.

Human Resource Management Theory in the Context of Economic Development Transformation from the Perspective of the Social Productive Forces

This paper explores the development of the human resource management theory from the perspective of social productive forces,deeply analyzing the development of the current social productive forces and the characteristics of the socio-economic development.It can be concluded that the development of the human resource management theory is closely related to the socio-economic development pattern.The twenty first century is a knowledge-driven era,and"eco-friendly"and"low-carbon"are the basic characteristics of the socio-economic development of the era of the knowledge-driven economy,which has great influence on the subject,aim and content of human resource management.Green human resource management conforms to the trend of the transformation of the socio-economic development.Based on the management of"human",it creates an eco-friendly,low-carbon and sustainable environment for enterprises,which promotes the transformation from extensive growth to intensive growth of the macro management of enterprises.

Research on Novel Pattern of Agricultural Economy based on Accurate Information Management System： A Survey

The agricultural development in the less developed districts is a big challenge as they are resource poor regions and crops are grown under more risky agro-ecological conditions. In this paper, we conduct research on novel pattern of agricultural economy based on accurate information management system. Agricultural information is the agriculture prenatal, during and aider the information process, mainly to solve the problems in the development of agricultural production. Rural information includes rural economic information, rural management and related information, rural information culture and the rural social service information. Our system modifies the efficiency of managing materials which will largely enhance the economical result for the agricultural activities.

A Quarterly High RFM Mining Algorithm for Big Data Management

In today’s highly competitive retail industry,offline stores face increasing pressure on profitability.They hope to improve their ability in shelf management with the help of big data technology.For this,on-shelf availability is an essential indicator of shelf data management and closely relates to customer purchase behavior.RFM(recency,frequency,andmonetary)patternmining is a powerful tool to evaluate the value of customer behavior.However,the existing RFM patternmining algorithms do not consider the quarterly nature of goods,resulting in unreasonable shelf availability and difficulty in profit-making.To solve this problem,we propose a quarterly RFM mining algorithmfor On-shelf products named OS-RFM.Our algorithmmines the high recency,high frequency,and high monetary patterns and considers the period of the on-shelf goods in quarterly units.We conducted experiments using two real datasets for numerical and graphical analysis to prove the algorithm’s effectiveness.Compared with the state-of-the-art RFM mining algorithm,our algorithm can identify more patterns and performs well in terms of precision,recall,and F1-score,with the recall rate nearing 100%.Also,the novel algorithm operates with significantly shorter running times and more stable memory usage than existing mining algorithms.Additionally,we analyze the sales trends of products in different quarters and seasonal variations.The analysis assists businesses in maintaining reasonable on-shelf availability and achieving greater profitability.

Review on the Impact of Climate Change on Great Lakes Region’s Agriculture and Water Resources

This study investigates the multifaceted impacts of climate change on the Midwest region of the United States, particularly the rising temperatures and precipitation brought about by hot weather activities and technological advances since the 19th century. From 1900 to 2010, temperatures in the Midwest rose by an average of 1.5 degrees Fahrenheit, which would also lead to an increase in greenhouse gas emissions. Precipitation is also expected to increase due to increased storm activity and changes in regional weather patterns. This paper explores the impact of these changes on urban and agricultural areas. In urban areas such as the city of Chicago, runoff from the increasing impervious surface areas poses challenges to the drainage system, and agriculture areas are challenged by soil erosion, nutrient loss, and fewer planting days due to excessive rainfall. Sustainable solutions such as no-till agriculture and the creation of grassland zones are discussed. Using historical data, recent climate studies and projections, the paper Outlines ways to enhance the Midwest’s ecology and resilience to climate change.

USERS′ PERCEPTION OF KOWLOON PARK, HONG KONG:VISITING PATTERNS AND SCENIC ASPECTS

Hong Kong is a hyper-dense city with 7x10(6) people living in an area of 1100km(2). One way to improve the livability of compacted and congested cities like Hong Kong is through the provision of urban parks, an aspect that has largely been under-researched. This study focuses on how users perceive and utilize various facilities in the Kowloon Park. The findings revealed that the Kowloon Park is one of the most preferred parks in Hong Kong for both local residents and tourists. Users were quite satisfied with the park's facilities. Notably, the most important component of an urban park is its greenery. This is followed by water elements, seating places, and facilities for various recreational activities. The improvements users would like to see in urban parks include good design and management, meeting users' needs, overcoming barriers to use, and providing a high quality and varied experience for different groups in the community. The findings of this study provide a good basis to address park management issues from the users' perspective. In particular, parks should provide easy access, encourage optimum usage and enable complimentary improvements to the environment.

Do Forest Landscape Pattern Planning and Optimization Play a Role in Enhancing Soil Conservation Services in Mountain Areas of Western China?

The relationship between landscape patterns and soil conservation,as well as the need for nature-based soil erosion control and landscape pattern optimization,have increasingly gained attention in the scientific and political community in the past decade.With the implementation of a series of afforestation/reforestation projects in the western China,the optimization and management of forest landscape patterns will become more important for soil conservation.In this study,the Bailongjiang Watershed(BLJW),in the western China,was used as a case study to explore the relationship between the forest landscape pattern and soil conservation services using mathematical and spatial statistics methods.A spatially-explicit model called the sediment delivery ratio(SDR)model of the Integrated Valuation of Ecosystem Services and Tradeoffs(InVEST)was used to assess the soil conservation service in each sub-basin of BLJW in 1990,2002,and 2014,and landscape indices were used to describe changes in forest landscape patterns in each sub-basin.Nine forest landscape indices,including the percentage of landscape(PLAND),largest patch index(LPI),edge density(ED),landscape shape index(LSI),mean patch shape(SHAPEMN),patch cohesion index(COHESION),landscape division index(DIVISION),splitting index(SPLIT)and aggregation index(AI),were significantly correlated to the soil conservation service.PLAND,AI,LSI and SPLIT of forestland were determined to be the more important landscape indicators.The results also indicated that soil conservation was substantially scale-dependent.The results demonstrated that landscape type diversity greatly affected watershed soil conservation and can be used for forest landscape restoration and management.Furthermore,spatial statistics analysis indicated that the Spatial Lag Model(SLM)was superior to the Ordinary Least Squares(OLS)for soil conservation regressions in 1990 and 2014,while OLS was more appropriate for the regression in 2002.These findings will be useful for enhancing soil conservation and for optimizing mountainous forest landscape patterns for afforestation/reforestation and regional development.Future planning and implementation of ecological restoration should focus more on strategic spatial planning and integrated landscape management with full consideration of future climate,water availability/consumption,hydrological regime,topography,and watershed features,especially on afforestation and revegetation projects in western mountainous China,where the socio-ecological system is fragile and poor.

Fuel loading pattern optimization of a pressurized water reactor by varying internal weights-based particle swarm optimization

Fuel reload pattern optimization is essential for attaining maximum fuel burnup for minimization of generation cost while minimizing power peaking factor(PPF).The aim of this work is to carry out detailed assessment of particle swarm optimization(PSO) in the context of fuel reload pattern search. With astronomically large number of possible loading patterns, the main constraints are limiting local power peaking factor, fixed number of assemblies,fixed fuel enrichment, and burnable poison rods. In this work, initial loading pattern of fixed batches of fuel assemblies is optimized by using particle swarm optimization technique employing novel feature of varying inertial weights with the objective function to obtain both flat power profile and cycle k_(eff)>1. For neutronics calculation, PSU-LEOPARD-generated assembly depletiondependent group-constant-based ADD files are used. The assembly data description file generated by PSU-LEOPARD is used as input cross-section library to MCRAC code, which computes normalized power profile of all fuel assemblies of PWR nuclear reactor core. The standard PSO with varying inertial weights is then employed to avoid trapping in local minima. A series of experiments havebeen conducted to obtain near-optimal converged fuelloading pattern of 300 MWe PWR Chashma reactor. The optimized loading pattern is found in good agreement with results found in literature. Hybrid scheme of PSO with simulated annealing has also been implemented and resulted in faster convergence.

Research Advances of Effects of Land Use Pattern on Greenhouse Gas Fluxes in Grassland Ecosystem

The grassland is the largest terrestrial ecosystem in China,and greenhouse gas fluxes such as CO2,CH4 and N2O play an important role in the global climate change. The differences in grazing,cultivation and management measures will affect greenhouse gas emissions in grassland ecosystem. Studies suggest that reclamation will lead to increased CO2 fluxes,and fertilization will lead to increased N2 O fluxes; no grazing in summer can reduce greenhouse gas emissions,but impacts of grazing and management measures on greenhouse gas fluxes have not yet reached the same conclusion. The different results may be related to local natural conditions,management measures and research methods. Future research should be focused on unity and standardization in these areas,making the results scientific and comparable,and finally providing the basis for emission reduction of greenhouse gases in grassland ecosystem.

Fournier's Gangrene: Experience with Management of 46 Cases in a Tertiary Institution

Background: Fournier's gangrene is a rapidly spreading necrotizing gangrene affecting the perineum, Perianal and genital regions but remarkably sparing the testicles, bladder and rectum due to their separate blood supply which is directly from the aorta. The aim of this study is to share our experience with the management of 46 cases. Patients and method: We retrospectively analysed the medical records of 46 patients admitted with Fournier's gangrene between April 2005 and December 2011 in the urology unit of Aminu Kano Teaching Hospital. Data extracted from these include age, sex, hospital stay, premorbid diseases, mobility, mortality, laboratory investigations and treatments carried out. Results: Fourty six patients were admitted and managed for Fournier's gangrene during the study period. All the patients were male and mean age was 50 years (range 20 - 80 years). Five patients died (10.90%) mortality, 41 (89.10%) patients survived. The shortest hospital stay was 13 days and longest was 120 days. 45.7% of the patients had urethral stricture with watering can perineum as predisposing factor, 16 (34.80%) had diabetes mellitus, 7 (15.2%) had perineal injuries as the predisposing factors while 5 (10.90%) patients had uraemia and one patient (2.20%) each had bladder tumour and scrotal abscess as their predisposing factors, in 3 patients (6.50%) it was idiopathic. Only 34 (73.90%) patients had wound swab microscopy culture and sensitivity on admission. The culture grew Klebsiella spp. in 9 (26.50%), Staph aureus and E. coli in 5 (10.90%) of cases each, while Gram positive rod and Gram negative Cocci with 4 (11.80%) and 6 (17.60%) respectively. Conclusion: Fournier's gangrene which is a rapidly progressive, fulminant polymicrobial synergistic infection of the perineum and genitals, is now changing pattern. Extensive surgical debridement and broad spectrum intravenous antibiotics remain the mainstay of treatment.

Epidemiological and Disease Burden Profiles of Leukemias and Malignant Lymphomas: Overview and Trends in the Republic of Moldova and Worldwide

Introduction: Hematological malignancies (HM) are relatively frequent nosological entities within the structure of morbidity by malignant tumors, exhibiting a severe evolution, restrained prognosis and negative socio-economic impact in the advanced stages and phases. Objective: The objective of the study was to identify the epidemiological patterns, and to evaluate the epidemiological trends and disease burden issues of HM in the Republic of Moldova and worldwide. Materials and Methods: The following research methods were used: epidemiological, descriptive statistics, clinico-analytic. The diagnosis was proved in all cases by histopathological, cytological, cytogenetic, molecular and immunophenotyping examinations. The qualitative type researches were performed and enriched by the narrative synthesis of the data. From the specialized international bibliographic sources and official statistics concerning HM. The narrative review of the reference sources was fulfilled in the form of a synthesis. Results: The number of newly diagnosed and followed-up patients with HM at the Institute of Oncology in 2016, 2017, 2018, 2019, 2020 and 2021 amounted respectively to 725, 802, 613, 628, 536 and 528, the incidence (new cases per 100,000 population) being 17.6, 19.5, 14.9, 17.7, 15.1 and 20.3. In 2021 HM constituted 6.2% of all newly-diagnosed cases with malignant tumors in the Republic of Moldova. In the same year Hodgkin lymphoma was diagnosed in 10.04% of cases, non-Hodgkin’s lymphomas—in 31.63%, multiple myeloma and plasma cells neoplasms—in 7.77%, lymphoid leukemias—in 17.42%, myeloid leukemias—in 12.31%, monocytic leukemias—in 0.95%, and other leukemias—in 16.29%. In 2019 the male rate was 51.5%, and the female rate—48.5%. Within 2 years males were 266 (50.4%), females—262 (49.6%). The age of 50 - 79 years prevailed in both genders (males—65%, females—72.5%). The children constituted 4.0% of the newly diagnosed cases, 4.8% of those under the follow-up at the end of the year 2019 and 6.4% of the newly diagnosed cases in 2021. The disease span from the onset to diagnosis ranged between 1 - 24 months and constituted on average 5.63 months, without a significant difference as compared to 2019 (5.76 months). The incidence of HM in Western countries is 14 - 19 new cases per 100,000 population (4% of all cases with malignant tumors). The incidence of non-Hodgkin’s lymphomas increased by 45% between 2006 and 2016, from 319,078 to 461,000 cases. Between 2006 and 2016, the incidence of leukemias increased by 26%, from 37,000,000 to 467,000 cases. Conclusions: The epidemiological study revealed slightly lower morbidity by HM in the Republic of Moldova as compared to the West European countries mainly due to the migration of a workable population. The patients with malignant lymphomas, male gender and age categories of 50 - 79 years proved to be commonly registered epidemiological patterns. The narrative analysis of the literature revealed that patients with HM may experience a considerable disease burden with a negative impact on their employment status, working productivity and annual household income.