Coordinated Mining Procedures of Open Pit Mines Based on River Management

This paper primarily concerns the effective coordination of the procedures and methods employed in open pit mining operations under the background of river management.The central objective of this study is to identify a viable approach for ensuring rational and efficient development of open pit mineral resources while simultaneously protecting and restoring the ecological environment of the river.This approach should facilitate the realization of a harmonious symbiosis between mining and river management.The intricate mutual influence relationship between river management and open pit mining is first analyzed in depth,which provides a solid foundation for the subsequent coordination strategy development.In light of the aforementioned considerations,a set of coordination procedures for open pit mining based on river management conditions is proposed.These procedures emphasize the integration of river protection into the overall layout of mining at the planning stage.The implementation of scientific mining schemes,accompanied by rigorous control of the scope and depth of mining operations,has proven to be an effective means of reducing the impact of mining activities on river environments.This approach has also facilitated the achievement of a balance and coordination between mining and river management.

Impact of open hepatectomy on postoperative bile leakage in patients with biliary tract cancer

BACKGROUND Bile leakage is a common and serious complication of open hepatectomy for the treatment of biliary tract cancer.AIM To evaluate the incidence,risk factors,and management of bile leakage after open hepatectomy in patients with biliary tract cancer.METHODS We retrospectively analyzed 120 patients who underwent open hepatectomy for biliary tract cancer from February 2018 to February 2023.Bile leak was defined as bile drainage from the surgical site or drain or the presence of a biloma on imaging.The incidence,severity,timing,location,and treatment of the bile leaks were recorded.The risk factors for bile leakage were analyzed using univariate and multivariate logistic regression analyses.RESULTS The incidence of bile leak was 16.7%(20/120),and most cases were grade A(75%,15/20)according to the International Study Group of Liver Surgery classification.The median time of onset was 5 d(range,1-14 d),and the median duration was 7 d(range,2-28 d).The most common location of bile leakage was the cut surface of the liver(70%,14/20),followed by the anastomosis site(25%,5/20)and the cystic duct stump(5%,1/20).Most bile leaks were treated conservatively with drainage,antibiotics,and nutritional support(85%,17/20),whereas some required endoscopic retrograde cholangiopancreatography with stenting(10%,2/20)or percutaneous transhepatic cholangiography with drainage(5%,1/20).Risk factors for bile leakage include male sex,hepatocellular carcinoma,major hepatectomy,blood loss,and blood transfusion.CONCLUSION Bile leakage is a frequent complication of open hepatectomy for biliary tract cancer.However,most cases are mild and can be conservatively managed.Male sex,hepatocellular carcinoma,major hepatectomy,blood loss,and blood transfusion were associated with an increased risk of bile leak.

Comparison of R and Excel in the Field of Data Analysis

This research paper compares Excel and R language for data analysis and concludes that R language is more suitable for complex data analysis tasks.R language’s open-source nature makes it accessible to everyone,and its powerful data management and analysis tools make it suitable for handling complex data analysis tasks.It is also highly customizable,allowing users to create custom functions and packages to meet their specific needs.Additionally,R language provides high reproducibility,making it easy to replicate and verify research results,and it has excellent collaboration capabilities,enabling multiple users to work on the same project simultaneously.These advantages make R language a more suitable choice for complex data analysis tasks,particularly in scientific research and business applications.The findings of this study will help people understand that R is not just a language that can handle more data than Excel and demonstrate that r is essential to the field of data analysis.At the same time,it will also help users and organizations make informed decisions regarding their data analysis needs and software preferences.

Surgical management of acute pancreatitis: Historical perspectives, challenges, and current management approaches

Acute pancreatitis(AP)is a serious condition presenting catastrophic consequences.In severe AP,the mortality rate is high,and some patients initially diagnosed with mild-to-moderate AP can progress to a life-threatening severe state.Treatment of AP has evolved over the years.Drainage was the first surgical procedure performed for AP;however,later,surgical approaches were replaced by more conservative approaches due to the availability of advanced medical care and improved understanding of the course of AP.Currently,surgery is used to manage several complications of AP,such as pseudocysts,pancreatic fistulas,and biliary tract obstruction.Patients who are unresponsive to conservative treatment or have complications are typically considered for surgical intervention.This review focuses on the surgical approaches(endoscopic,percutaneous,and open)that have been established in recent studies to treat this acute condition and summarizes the common management guidelines for AP,discussing the relevant indications,significance,and complications.It is evident that despite their reduced involvement,surgeons lead the multidisciplinary care of patients with AP;however,given the gaps in existing knowledge,more research is required to standardize surgical protocols for AP.

Fast clogging problem of open check dams and a new type suggestion:curved footed type open check dam

Driftwood is one of the important physical components in mountainous rivers which causes severe hazards due to the clogging of bridges,culverts,and narrow sections during floods.Therefore,the understanding of driftwood dynamics and mitigation measures are crucial for managing wood in rivers.Open check dams are the most commonly used engineering measure for preventing driftwood from reaching downstream areas.Nevertheless,these open check dams frequently lose their sediment transport function when they are blocked by sediment and driftwood,especially during major flood events.This paper proposes a new type of open check dam for preventing from clogging.Thus,flume experiments were conducted to examine the influence of different types of open check dams on the characteristics of driftwood deposition.For the model with wood length(LWD)=16.5 cm,wood diameter(D)=15 mm,and wood number(N)=172,the highest trapping efficiency was observed with 90.1%and 87.2%retention rates for the classical debris flow breaker and curved footed open check dams,respectively.Laboratory tests showed that through this proposed design,woody debris blockage in a very short time was prevented from the accumulation of woods beside the dam.In addition to this,most of the sediment passed through the check dam and most of the driftwood got trapped.It can be briefly stated that the geometrical design of the structure plays an important role and can be chosen carefully to optimize trapping efficiency.By designing this type of open check dams in mountain river basins,it may provide a better understanding of the driftwood accumulation and basis for the optimal design of these structures.Further development of the solution proposed in this work can pave the way for designing different types of open check dams for effective flood management.

Planning Management of Multiagent-based Distributed Open Computing Environment Model

ＰｌａｎｎｉｎｇＭａｎａｇｅｍｅｎｔｏｆＭｕｌｔｉａｇｅｎｔ┐ｂａｓｅｄＤｉｓｔｒｉｂｕｔｅｄＯｐｅｎＣｏｍｐｕｔｉｎｇＥｎｖｉｒｏｎｍｅｎｔＭｏｄｅｌＨｅＹａｎｘｉａｎｇ（何炎祥）（ＣｏｌｅｇｅｏｆＣｏｍｐｕｔｅｒＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏ...

New Perspectives for Workflow Analysis in the Health Italian Sector through Discrete Event Simulation: The Case of a Department of Laboratory Medicine

The management systems currently used in the Italian healthcare sector provide fragmented and incomplete information on this system and are generally unlikely to give accurate information on the performances of the healthcare processes. The present paper introduces a combined discrete event simulation (DES)/business process management (BPM) approach as innovative means to study the workflow of the activities within the Department of Laboratory Medicine of the “San Paolo” Hospital in Naples (Italy). After a first “As-Is” analysis to identify the current workflows of the system and to gather information regarding its behaviour, a following DES-based “What-If” analysis is implemented to figure out alternative work hypotheses in order to highlight possible modifications to the system’s response under varying operating conditions and improve its overall performances. The structure of the simulation program is explained and the results of the scenario analysis are discussed. The paper starts with a brief exploration of the use of DES in healthcare and ends with general observations on the subject.

Preoperative Laboratory Testing by Surgeons: Implication on Anaesthetic Management

Background: Request for preoperative laboratory investigations is usually done by surgeons. On some occasions, the patient may come with laboratory investigations that have been requested by the primary physician. This occurs in situations where the primary physician saw the patient first and referred to the surgeon. There is usually no indications based on history or physical examination before these laboratory request is done but rather on speculations that the “anaesthetist may require them”. This is done in order to avoid cancellation or delay of cases. The aim of this study was to find out how tests ordered in Komfo Anokye Teaching Hospital (K.A.T.H.) by the surgeons affected the decisions of the anaesthetists in the perioperative management of the patients. Methodology: This was a prospective, cross sectional study of patients undergoing elective surgery at K.A.T.H from 1st to 31st March 2014. A quantitative technique was used to effectively quantify laboratory results that were contained in a patient’s folder before an elective surgical procedure. A close and open-ended questionnaire was developed and answered by reviewing patient’s folders during the pre-anesthesia assessment. Data were analyzed using Statistical Package of Social Sciences (SSPS) version 22. Results: The average age of patients studied was 50 years. Abnormal test results did not influence the anaesthetic management in 70.5% of cases but led to either delay or cancelation of cases or requirement for transfusion of blood or blood products in 29.5% of cases. Conclusion: Preoperative laboratory tests ordered by Surgeons in KomfoAnokye Teaching Hospital do not significantly influence the anaesthetic managements of patients.

Improving Clinical Laboratory Quality through Reduction of Tests’ Turnaround Time in Democratic Republic of the Congo: Key Strategies

In Democratic Republic of the Congo (DRC), the laboratory TAT is significantly very long and do not comply with either international standards or the suggestions of customers. However, there is neither a national nor a local strategy to improve the laboratory TAT. The aim of the present study is to develop practical management strategies to shorten clinical laboratory tests’ TAT. This was a qualitative study conducted in Kinshasa. Focus groups and Lean tools were used respectively to generate a wide range of views from a variety of laboratory staff and to eliminate several form of waste in the laboratory flow process. Based on the identified root causes of delay, focus groups participants reported that there is a lot of scope for the improvement of TAT in DRC. Consistent attendance and punctuality are essential. The hospital management should implement the Laboratory Information Systems (LIS) and install Middleware. Total laboratory automation, inventory system for all reagents and supplies used in the laboratory, expansion of the sampling area, sufficient number of high-power machine and a clear job description are indispensable. LIS, 3.5 mL BD vacutainer BarricorTM tube and point-of-care testing (POCT) are necessary for workflow improvement. A reduction of 312 minutes was achieved by eliminating or decreasing non-value-added activities. Applying the suggested key strategies, and particularly the new workflow process, is a basis for improving the laboratory tests’ TAT. The algorithm presented can be easily implemented in other laboratories that face this type of problem.

Enhancing Hazardous Chemical Management in Chinese University Laboratories:Strategies for Safety and Efficiency

This paper examines the management of hazardous chemicals in Chinese university laboratories,identifying key challenges and proposing improvements.It reviews current practices and safety measures,highlighting deficiencies such as inadequate safety systems and insufficient awareness among personnel.The study emphasizes the necessity of tailored safety management systems,the integration of digital tracking technologies like Radio Frequency Identification,and enhanced safety training for staff.The proposed recommendations aim to mitigate risks and enhance laboratory safety and efficiency.In conclusion,the paper asserts that a comprehensive approach,encompassing improved management systems,technological advancements,and educational initiatives,is essential for safer chemical handling in academic research environments.

Innovative Research on Improving the Construction and Management Level of Computer Laboratories in Application-oriented Universities

Since the eighties of the last century,the international higher education community has gradually formed a trend of attaching importance to practical teaching and strengthening the cultivation of application-oriented talents.With the construction demand of application-oriented talents,the requirements for laboratory work in universities to be raised,the traditional laboratory construction environment equipment and the management mode can no longer satisfy the needs of modern education;there exist a lot of problems,such as old environment,aged equipment,backward management system and mode,weak service awareness etc.,it needs to break the old management mode,adopting informatization management,normalizing management system,raising service awareness,strengthening the laboratory publicity,so that the overall level of computer laboratory construction and management would be improved.

SCO Management System Certification Research Class Opens in Beijing

The Shanghai Cooperation Organization (SCO) Management System Certification Research Class formally opened in Beijing on September 6, 2007. The research class was attended by government officials and experts in the fields of industry, commerce,environmental protection,statistics, standardization,metrology, detection and certification from Kazakhstan, Kyrgyzstan, Uzbekistan and Tajikistan.……

Open Laboratory of Palaeobiology & Stratigraphy

Established in 1989, the Open Laboratory ofPalaeobiology & Stratigraphy is a department-spon-sored experimental entity and the only one of its kindin China. At present, it has become a research basefor disciplinary studies of Palaeobiology &Stratigraphy. It is noted for its innovative work incarrying out such projects as "Early life evolution &Cambrian biota explosion," "Global stratotypes of theOrdovician series and stage boundaries," "

Integrity of Local Ecosystems and Storm Water Management in Residential Areas

The authors designed an ecological storm water system in a residential area to replace the conventional underground channels for the collection of storm water so as to reduce the nutrients and sediments discharged. This system contains natural sub-creeks as drainage channels discharging overflow to nearby creeks, an open green trench, a storage pond, and natural sub-creeks. The sub -creeks were designed to be integrated into community landscape, which not only increases the efficiency of water usage, but also improves the aesthetic qualities of the community residence area as required by Agenda 21. This research proved the feasibility of an open storm water collection and utilization system for the design of a community water system.

Evaluation of the Management Results of Uretero-Pelvic Junction Abnormalities

Objectives: To evaluate therapeutic and prognosis of Uretero-pelvic junction abnomalities. Methods: This article was retrospective and descriptive, covering a period of six months, running from January 1st to December 31st, 2013 and conducted?to evaluate therapeutic and prognosis of Uretero-pelvic junction abnormalities. Included criteria were all patients whose diagnosis was abnormalities of the uretero-pelvic junction and had been confirmed after para clinical explorations. The stricture of the junction after a first kidney surgery did not include. The Creatinine level has considered high from 15 mg/l. Results: The median age was 35 years old. Age groups (30 - 40) years old have predominated in 36.2%. A male predominance had been noted in 62.3% versus 37.7% women. The most affected occupation was the officials in 37.7% of cases. The main reason for consultation was lumbar pain in 97.1%. The high creatinine level has observed in 19 patients (27.5%). Sixty-one patients (88.41%) have been operated. An abstention has been observed in 7 patients (10.14%) and one patient died before the surgical issue in renal failure. The early post-operative course has been uneventful in 78.7% (48 cases) and complicated in 21.3% (21 cases). Conclusions: Open surgery tends to disappear at the expense of the endopyelotomy and laparoscopy which gives best results. However, it is still relevant.

Mapping the Flood Risk Exposure Using Open-Source Geospatial Tools and Techniques: A Case of Gampaha Divisional Secretariat Division, Sri Lanka

The use of open-source data and tools in disaster exposure mapping is presented in this paper. Disaster exposure is a collection of the element at risk to potential loss. Gampaha divisional secretariat (DS) is a study area laid on the lower part of the Attanagalu Oya river basin. As the geospatial tools, OpenStreetMap (OSM), Java OpenStreetMap (JOSM), QGIS, GPS Essentials, and Open Map Kit (OMK) are used. The elements of disaster exposure, including the number of people or types of assets, are surveyed and inventoried using the OSM platforms. Local, national, and international agencies produce and evaluate the data. The study developed spatial data for building footprints of 165,000 households, street lengths of 2300 km, hospital units of 16, and utility units of 2300. This could overcome the main challenges of exposure mapping in the area. The procedure developed in the exposure mapping can be used in a data-sparse environment. Exposure mapping is generally used to estimate the impact of hazards or disasters, which are essential in effective disaster management. How are there still remaining challenges in disaster exposure mapping such as less awareness about the mapping procedure, lack of government support, internet access, hardware, and inability to understand the value of exposure mapping?