scholarly journals Risks associated with the transportation of hazardous materials on public roads

2018 ◽  
Vol 231 ◽  
pp. 05004
Author(s):  
Eligiusz Mieloszyk ◽  
Anita Milewska
Keyword(s):  
Mathematical Models ◽  
Dynamic Systems ◽  
Negative Impact ◽  
Significant Proportion ◽  
Water Reservoir ◽  
Hazardous Materials ◽  
Road Users ◽  
Distributed Parameters ◽  
Surrounding Environment ◽  
Flow Surface

A significant proportion of the transport of hazardous materials is carried out on public roads. Therefore, the safety of such transport is becoming increasingly important. Every catastrophe involving hazardous materials has a negative impact on direct road users and the surrounding environment, becauses its range is mostly not local. It follows that in the event of such catastrophe, its effects should be minimized. This is possible only when we know the mechanism of spreading effects of a catastrophe involving hazardous materials. Those effects are spread by two basic media: ground (in particular water in the ground) and air. Sometimes those effects are spread by water, while the catastrophe has occurred near a water reservoir or watercourse with a free flow surface. In extreme cases, this can even lead to an ecological disaster. Dynamic systems, especially those with distributed parameters, can be used to describe the mechanism of the disaster's spread. Properties of phenomena accompanying analyzed catastrophes are well reflected in their linear or non-linear mathematical models [1,2], which are analyzed by various operator methods [3].

scholarly journals Hazardous material-related propagation of the effects of train accidents in the subgrade

2018 ◽  
Vol 2018 (10) ◽  
pp. 11-18
Author(s):  
Eligiusz Mieloszyk ◽  
Sławomir Grulkowski ◽  
Anita Milewska
Keyword(s):  
Mathematical Models ◽  
Dynamic Systems ◽  
Negative Impact ◽  
Extreme Case ◽  
Hazardous Materials ◽  
Hazardous Material ◽  
Whole Process ◽  
Distributed Parameters ◽  
Surrounding Environment ◽  
Ecological Disaster

A large part of the transport of hazardous materials is carried out by rail. Therefore, the security of these transports is becoming increasingly important. Every catastrophe involving dangerous materials has a negative impact on the participants of the incident and the surrounding environment, because its range is generally not local. It follows that in the event of a catastrophe, its effects should be minimized and remediation should be considered in further actions. This whole process of minimization is possible only when we know the mechanism of spreading the effects of a catastrophe involving hazardous materials in the track, subgrade and ground. It should be remembered that in an extreme case, a catastrophe involving hazardous materials may even lead to an ecological disaster. Dynamic systems, especially those with distributed parameters, can be used to describe the mechanism of the disaster's spread. Properties of phenomena accompanying the analyzed catastrophes are well reflected in their linear or non-linear mathematical models analyzed using various operator methods.

scholarly journals ANALISIS RULE INFERENSI FUZZY MAMDANI DALAM MENENTUKAN IPK AKHIR

2017 ◽  
Vol 1 (1) ◽  
pp. 22
Author(s):  
Khairul Saleh
Keyword(s):  
Decision Making ◽  
Fuzzy Logic ◽  
Mathematical Models ◽  
Dynamic Systems ◽  
Fuzzy Systems ◽  
Chaotic Dynamics ◽  
Complex Dynamic ◽  
Grade Point ◽  
Complex Dynamic Systems ◽  
Decision Making System

Abstract - In the world of education to achieve the level of success, of course, they have a benchmark for the success of students, one of them is the Grade Point Average (GPA). The purpose of this study is to determine the final GPA so that later it can be used as a reference to predict the success rate of students. The issue of decision-making systems using Fuzzy systems is very suitable for definite reasoning or estimation, especially for systems with strict mathematical models that are difficult to get a definite decision. Fuzzy logic can be used to describe a system of chaotic dynamics, and fuzzy logic can be useful for complex dynamic systems where solutions to common mathematical models cannot work well. The Mamdani method computes efficiently and works well with optimization and adaptive techniques, which makes it very good in control problems, especially for dynamic non-linear systems. Keywords - Cumulative Achievement Index (GPA), fuzzy system, decision making system, mamdani information

scholarly journals THE CONSTRUCTION AND DEMOLITION WASTES IN KLANG VALLEY, MALAYSIA

2012 ◽  
Vol 10 (3) ◽  
Author(s):  
Muhammad Abu Eusuf ◽  
Mansor Ibrahim ◽  
Rafikul Islam
Keyword(s):  
Public Health ◽  
Waste Management ◽  
Hazardous Materials ◽  
Environment And Public Health ◽  
Surrounding Environment ◽  
Construction And Demolition Wastes ◽  
Klang Valley

Numerous activities in construction and demolition (C&D) projects are generally considered as complex and di stant that may affect surrounding environment and public health. Construction, remodell ing, repairing, refurbishing or demotion works of buildings and other infrastructures such as roads generate huge amounts of hazardous and non-hazardous materials. In the present work, an attempt has been made to highlight a number of issues in C&D waste management in the Klang valley of Malaysia and which then discusses the current traditions of managing those materials in Malaysian perspectives. The paper concludes with a number of recommendations that can help to improve C&D waste management in Malaysia national perspectives.

scholarly journals Parametric Reduction of Mathematical Models of Dynamic Systems

2018 ◽  
pp. 39-55
Author(s):  
A. A. Verlan ◽  
◽  
O. A. Diachuk ◽  
E. A. Palahina ◽  
V. V. Palahin ◽  
...  
Keyword(s):  
Mathematical Models ◽  
Dynamic Systems

Manfaat Pemisahan Sampah Organik dan Anorganik Melalui Media Buku Ilustrasi Anak

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Ardani Ari Suseno ◽  
Nabila Ulul Albab ◽  
Sonde Martadireja
Keyword(s):  
Negative Impact ◽  
Positive Impact ◽  
Economic Value ◽  
Disease Clusters ◽  
Visual Communication Design ◽  
Second Stage ◽  
Surrounding Environment ◽  
The Social ◽  
Pile Up ◽  
Negative Impacts

Garbage was defined as the residue of people's daily activities. In the social environment, to facilitate decomposition, garbage was generally grouped into two simple parts; namely organic garbage and inorganic garbage. garbage management was needed to reduce the possibility of positive and negative impacts to the environment. Economic value was grouped into positive impact, while the source of odors and disease clusters were grouped as negative impact. In this study, the focus of the problem is on the negative group. Because if garbage is allowed to pile up in one place in community settlements, it will become a source of unpleasant odors so that it can then become an area for germs to develop. This condition is an indication that the garbage had not been managed properly and could worsen the surrounding environment. Therefore, proceeded from the scientific visual communication design, then at least hazard information and proper garbage processing method needed to be made. Knowledge of garbage separation to reduce environmental pollution would be better if known or understood since childhood. The choice of work form for dissemination of this information was children illustration book. The process of realizing this illustration book work used several stages, the first stage was the process of collecting data about garbage and its processing, then data on the type of book that match the target audience. The second stage was the process of making books, in this stage it went through several processes from pre-production to production.

scholarly journals High Prevalence of Poststroke Depression in Ischemic Stroke Patients in Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Fikru Tsehayneh ◽  
Abenet Tafesse
Keyword(s):  
Depressive Symptoms ◽  
Negative Impact ◽  
Significant Proportion ◽  
Cross Sectional Study ◽  
Screening Tools ◽  
Limited Information ◽  
Poststroke Depression ◽  
Stroke Patients ◽  
Cross Sectional ◽  
Patient Health

Background. There is limited information and research carried out regarding the prevalence of poststroke depression (PSD) in the study area. Psychiatric disorders complicate a significant proportion of patients suffering from stroke. This of course have a great negative impact on our knowledge about poststroke depression in Ethiopia, and poststroke depression complicates a significant number of stroke patients and their rehabilitation. Methods. A cross-sectional study on all patients aged above 18 years and diagnosed with stroke in the past two years who attended the neurology follow-up clinics of Tikur Anbessa Specialized Hospital (TASH) and Zewditu Memorial Hospital (ZMH) was done by using a structured questionnaire containing Patient Health Questionnaire-9 (PHQ-9) depression screening tool. Result. Of 84 patients who were eligible for the study, 32.2% of patients have depressive symptoms. Women (OR 0.001, 95% CI 0.12–0.87) and aphasic patients (OR 0.034, 95% CI 0.19–1.27) were more likely to have depressive symptoms. Conclusion. Depressive symptoms after stroke are common in Ethiopian patients. Our study demonstrates female and aphasic patients are more likely to screen positive for PSD. Hence, screening all poststroke patients with different screening tools is practical, and further studies are needed to assess the validity of these screening tools and also to assess PSD as a predictor of stroke outcome.

scholarly journals Kajian Arahan Penyediaan Ruang Kota Bagi Pedagang Kaki Lima di Kawasan Pendidikan Tembalang, Kota Semarang

2017 ◽  
Vol 13 (4) ◽  
pp. 473
Author(s):  
Nur Khasanah Apriliasari
Keyword(s):  
Urban Areas ◽  
Quantitative Research ◽  
Negative Impact ◽  
Integral Form ◽  
Public Spaces ◽  
Urban Transformation ◽  
Street Vendors ◽  
Road Users ◽  
Economic Support ◽  
City Space

Street vendors (PKL) are one of the informal sectors that are often viewed as a parasite sector and have a negative impact on the city's image. However, the existence of street vendors also become one of the highest city's economic support and provide benefits for the community. Rukmana (2008) states that street vendors are an integral form of urban transformation from their economic system, from agriculture-based society to industry and services. Thus, the informal sector including street vendors need to be considered in the provision of space in urban areas. Street vendors in the educational area of Tembalang increasingly mushrooming after the transfer of Undip Pleburan students to Tembalang. The street vendors use public spaces and interfere with other space users, especially pedestrians and road users. This research uses positivistic-rationalism approach with quantitative research method to determine the direction of city space provision for street vendors in Tembalang educational area. The result of this research is the provision of city space for street vendors in Tembalang Educational Area directed by arranging PKL activity on strategic and accessible road corridor. Provision of space for street vendors as stated in the Decree of Mayor of Semarang no. 511.3 / 16 2001 on Land Stipulation / Location PKL needs to be reviewed because it has not contain the characteristics and needs of street vendors and consumers. The capacity of the existing space has not been able to accommodate the needs of street vendors in Tembalang Education Area in the future.

The effects of HDIL-2 in combination with pazopanib or sunitinib on PBMCs’ function and RCC cells’ apoptosis: Preliminary in vitro data.

2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 463-463
Author(s):  
Alaaeldin Shablak
Keyword(s):  
Cell Lines ◽  
Negative Impact ◽  
Significant Proportion ◽  
Chromium Release ◽  
Healthy Donors ◽  
Anticancer Mechanism ◽  
In Vitro Effects ◽  
Brdu Assay ◽  
In Vitro Data

463 Background: Combination of certain immunotherapies with TKI’s has been used with success in the treatment of metastatic renal cell carcinoma (MRCC) patients. Here we evaluate the in vitro effects of HDIL-2 and pazopanib or sunitinib on the PBMCs’s function and RCC cell lines apoptosis. Methods: PBMCs isolated from healthy donors or RCC patients were treated with different HDIL-2/TKI combination and their proliferation was assessed with CFSE labelling assay. Furthermore, using CD107a degranulation or chromium release assays, the function of these treated cells was evaluated. The BRdU assay was used to examine the effects of these drugs combinations on the proliferation of different RCC cell lines. Results: While HDIL2/sunitinib combination did not inhibit the proliferation of various immune cells induced by HDIL-2 alone, combination of HDIL-2/pazopanib did, on the other hand, inhibit these cells proliferation. Interestingly, none of these combinations had a negative impact on the functional properties of these cells. Significant proportion of RCC cell lines treated with pazopanib underwent apoptosis, while the proportions of apoptotic cells post HDIL-2 or sunitinib treatment were not different from the background. Furthermore, the combination of HDIL-2/pazopanib did not inhibit the pazopanib induced RCC apoptosis. Conclusions: These preliminary data showed that combination of HDIL-2 and either pazopanib or sunitinib could recruit different anticancer mechanism that could enhance the treatment efficacy. Further assessment in this direction is warranted.

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