classification of chemical hazards
handbook of reactive chemical hazards vol 2 (bretherick 1999)
... wide range of equipment and techniques is now available for this purpose See ACCELERATING RATE CALORIMETRY ASSESSMENT OF REACTIVE CHEMICAL HAZARDS COMPUTATION OF REACTIVE CHEMICAL HAZARDS DIFFERENTIAL ... to present an overview of the complex subject of reactive chemical hazards, drawing attention to the underlying principles and to some practical aspects of minimising such hazards It also serves ... or the exothermic decomposition of a single unstable (often endothermic) compound All measures to minimise the possibility of occurrence of reactive chemical hazards are therefore directed at...
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handbook of reactive chemical hazards vol 1 (bretherick 1999)
... wide range of equipment and techniques is now available for this purpose See ACCELERATING RATE CALORIMETRY ASSESSMENT OF REACTIVE CHEMICAL HAZARDS COMPUTATION OF REACTIVE CHEMICAL HAZARDS DIFFERENTIAL ... pairs of reactive chemicals arise from the work of Prof T Yoshida in developing a method for the calculation of maximum reaction heats (MRH) possible for binary (or ternary) mixtures of chemicals, ... to present an overview of the complex subject of reactive chemical hazards, drawing attention to the underlying principles and to some practical aspects of minimising such hazards It also serves...
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Báo cáo y học: "Classification of hip joint infections"
... the knee joint [8] This classification system consists of stages (Table 1) and combines intraarticular findings of the soft tissues as well as radiological alterations of the infected joint Infections ... site of an aseptic loosening of hip arthroplasties also in the assessment of infected total hip replacements The Paprosky- [7, 19], and the AAOS (American Academy of Orthopedic Surgeons) [5-6] classifications ... assessment is needed at the time of surgery Both classification systems allow for the prior choice of which prosthesis to use at the time of reimplantation, and which type of graft depending on whether...
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NOMINATION OF CHEMICAL/ AGENT/SCIENTIFIC ISSUE FOR TESTING....
... permanent makeup; however, the popularity of this practice and the wide availability of businesses that offer permanent makeup application, suggest the number of individuals with permanent makeup ... 2001), and the tattooing of mice has resulted in the accumulation and persistence of tattoo inks in lymph nodes (Gopee et al., 2004a,b) The effect of long-term exposure of the dermis and lymph ... remaining pigment is not known EVIDENCE FOR CENTER/OFFICE CONCERN: Regulation of permanent makeup inks There is a paucity of toxicological data on the safety of inks used in this country for permanent...
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iec 60079-10 electrical apparatus for explosive gas atmospheres - classification of hazardous areas
... adjacent sources of release overlap and are of different zonal classification, the higher risk classification will apply in the area of overlap Where overlapping zones are of the same classification, ... Type of zone The likelihood of the presence of an explosive gas atmosphere and hence the type of zone depends mainly on the grade of release and the ventilation NOTE A continuous grade of release ... pressure and the geometry of the source of release The size of a cloud of flammable gas or vapour is determined by the rate of flammable vapour release and the rate of dispersion Gas and vapour...
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Tài liệu THE PRINCIPLES OF CHEMICAL EQUILIBRIUM doc
... energy of a pair of molecules of types i andj a:, Mole fraction of ith species in vapour phase %+,%- Charges of positive and negative ions respectively in units of the proton charge « Coefficient of ... charactertstic of an equilibrium, such as the vapour pressure of a liquid, the solubility of a solid, or the equilibrium constant of a reaction Then some of the most useful results of thermodynamics are of ... Principles of Chemical Equilibrium [1·3 of a given piece of material but rather as a region of space with geometrically defined boundaries across which there is the possibility of transfer of energy...
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Tài liệu Báo cáo " DETERMINING FLOW ENERGY AND EROSION COEFFICIENT FOR CLASSIFICATION OF POTENTIAL EROSION IN BINH DINH PROVINCE " ppt
... CSIC, 1998) The results of erosion potential classification - Based on Binh Dinh profile’s file (Vietnam Association of Soil Sciences, 1997), values of K for 117 hill soil profiles throughout the ... coefficient 39 The method of erosion potential classification in Binh Dinh Province The classification of erosion potential M in Binh Dinh Province is based on the numerical value of the flow energy ... of erosion potential for all pixels of the four basins Table K values of main soil groups and classification by erosive characteristics Symbology Number of profiles Pc-h Speck aluvial soil Pc-fe...
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Tài liệu Understanding Toxic Substances - An Introduction to Chemical Hazards in the Workplace docx
... mg/kg A way of expressing dose: milligrams (mg) of a substance per kilogram (kg) of body weight mg/m3 A measure of concentration: weight of substance (mg) in a volume of air (m3), often used to ... parts of air or water (one thousandth of one ppm) ppm Parts per million, a measure of concentration, such as parts of a chemical vapor or gas substance per million parts of air PELs and TLVs are often ... or chemical is, using a scale of to 14 For example, a pH of indicates a strongly acidic solution, a pH of indicates a neutral solution, and a pH of 14 indicates a strongly alkaline solution A chemical...
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Tài liệu Gait Pattern Classification of Healthy Elderly Men Based on Biomechanical Data ppt
... developed of the Yl family in the (A) sagittal, is overlaid in bold distance of 8.7 and 13.7, respectively They form one family of 10 trials, El, and a smaller one, E2, of 6, all consisting of elderly ... center of a 10-m walkway to cover the volume required for at least one complete gait cycle of the right lower limb A third camera was placed in front of the subject and aligned along the axis of ... side), in terms of the effect of the combined 31 gait parameters The optimal number of clusters can be determined in several ways Winters and coworkers*’ calculated the criterion of Hartigan and...
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Tài liệu Đề tài " Classification of local conformal nets. Case c doc
... ρI (A(I))] of ρI , if I ⊃ I0 The (statistical) dimension d(ρ) of ρ is the square root of the index The unitary equivalence [ρ] class of a representation ρ of A is called a sector of A 2.1.2 ... cf [2]) is often difficult to prove by other methods Furthermore, the nondegeneracy of the braiding, also called modularity CLASSIFICATION OF LOCAL CONFORMAL NETS 495 or invertibility of the S-matrix, ... Thus, while our main result concerns nets of single factors, our main tool is the theory of nets of subfactors This is the key of our approach The outline of this paper is as follows We first identify...
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Tài liệu Diagnostic Standards and Classification of Tuberculosis in Adults and Children doc
... variability of the subjects vaccinated, the nature of the mycobacteria endemic in different parts of the world, the use of different strains of BCG for immunization, and the use of different doses of ... should be made of the technique of administration (Mantoux or multiple-puncture), the kind and dose of tuberculin, and the size of reaction in millimeters of induration D Interpretation of Skin Test ... concentration of a drug is the level of drug that inhibits the growth of most cells within the population of a “wild” type strain of tubercle bacilli without appreciably affecting the growth of the...
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Tài liệu Đề tài " The topological classification of minimal surfaces in R3 " pptx
... interior of W Let S denote the collection of ends of planes and catenoids defined above which arises from the collection of nonsimply connected components W of Hi − ∪Di It follows from the proof of ... ordering of ends The proof of the case where F has two limit ends is similar Let W be the set of closures of the components of H1 −∪D1 and H2 −∪D2 Given W ∈ W, let P(W ) be the collection of planes ... TOPOLOGICAL CLASSIFICATION OF MINIMAL SURFACES 687 two slabs each containing fewer ends of F Since the number of ends of F ∩ S is finite, the existence of the required collection of planes follows by...
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Tài liệu Báo cáo khoa học: Improving Classification of Medical Assertions in Clinical Notes" pdf
... data to measure the impact of each of the four subsets of features explained in Section Table shows the cross validation results when cumulatively adding each set of features Applying the 1-vs-all ... minority classes was weak For example, most of Present R Absent P R The micro-averaged F1-measure of our new system is 94.17%, which now outperforms the best official score reported for the 2010 i2b2 ... assertion classification task was tackled by participating researchers The best performing system (Berry de Bruijn et al., 2011) reached a micro-averaged F1measure of 93.62% Their breakdown of F1...
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Tài liệu Báo cáo khoa học: "Semantic Classification of Noun Phrases Using Web Counts and Learning Algorithms" ppt
... relations Over the set of semantic relations defined by Nastase and Szpakowicz (2003), they achieve an accuracy of 45.7% for the task of assigning one of semantic relations to each of the 600 modifier-noun ... motivation in this paper was twofold Firstly, we wanted to compare the performance of different machine learning algorithms on the task of mapping from a vector of web frequencies of paraphrases containing ... web frequencies for queries of the form “head joining term modifier” We did not collect queries of the form “modifier joining term head”; in the majority of paraphrases of noun phrases the head...
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Tài liệu Machine safety Prevention of mechanical hazards pptx
... 8.7.2 (Protection of ladders or stairs) Engineers Act (R.S.Q., c I-9) DIVISION II - PRACTICE OF THE ENGINEERING PROFESSION Prevention of mechanical hazards 13 1.3 Definitions of the terms used ... showing the use of the risk graph in Figure 2-3 Prevention of mechanical hazards 21 Severity of the harm (S) The severity of the harm can be estimated by taking into account the severity of the injuries ... distance guard nip guard Prevention of mechanical hazards 29 3.2 Choice of type of guards The type of guards adapted to the danger zone and to existing hazards can be chosen, for example, by...
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The Classification of Pulmonary Tuberculosis and An Outline of Standardised Principles of Management pot
... respective localisations of the first lesion of primary and that of secondary disease In explanation of the localisation of the first lesion of primary disease in the absence of acquired resistance ... demonstration of the truth of this law is to be found in the study of a large series of cases (I have personally observed several hundreds) in which the course of the primary type of the disease ... develops in one of two ways, depending on the relative potency of the infecting dose on the one hand and the degree and rapidity of development of acquired resistance on the other The dose of bacilli...
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IN THIS ISSUE: CLASSIFICATION OF FINANCIAL ASSETS AND LIABILITIES UNDER IFRS 9 pot
... risk of the underlying pool of instruments This condition would be met in respect of a tranche if, for example, in the event of the underlying pool of instruments losing 50% as a result of credit ... management of a portfolio to realise fair value changes; management and evaluation of performance of a portfolio on a fair value basis; and trading intention (IFRS retains the IAS 39 concept of ‘held-for-trading’) ... are of a fund concluding that the management of a portfolio that was previously HTC is no longer consistent with the HTC business model following a change to an ongoing frequent level of sales of...
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Báo cáo khoa học: "A System for Semantic Analysis of Chemical Compound Names" pdf
... plays a crucial role in classification of chemical compounds For example, hydroxy, used as a prefix of a name, specifies the presence of an OH-group (consisting of an oxygen atom and a hydrogen atom) ... graph variables In GRASPER, a graph is defined by its set of vertices and its set of edges Therefore, the domain of a graph consists of a set of possible vertices, in our case for the atoms, and possible ... processing of chemical compound names In the introductory section, we described the characteristic phenomena of biochemical terminology which challenge any such system Our approach is composed of several...
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Báo cáo khoa học: " Thumbs Up or Thumbs Down? Semantic Orientation Applied to Unsupervised Classification of Reviews" doc
... work is the relationship of accuracy of the estimation of semantic orientation at the level of individual phrases to accuracy of review classification Since the review classification is based ... p(word2) is thus a measure of the degree of statistical dependence between the words The log of this ratio is the amount of information that we acquire about the presence of one of the words when we ... rating out of five stars Table A summary of the corpus of reviews Domain of Review Number of Reviews Automobiles Honda Accord Volkswagen Jetta Banks Bank of America Washington Mutual Movies The...
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Báo cáo Y học: Artocarpus hirsuta lectin Differential modes of chemical and thermal denaturation potx
... emission maximum Refolding of the protein Renaturation or refolding of the protein was measured as the extent of reappearance of the original spectra (F 335/ 356) and recovery of the sugar binding ... indicating temporary exposure of the hydrophobic patches of the protein during unfolding (Fig 3B) The possibility of the occurrence of the molten globule during unfolding of A hirsuta lectin as observed ... spectrum of the native lectin showed a maximum at 335 nm which characterizes nonpolar environment of the tryptophan residues On denaturation of the lectin with increasing concentration of Fig GdnHCl-induced...
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