scholarly journals On the development of the project of requirements of the rules of RS into account of limitations for flooding

2021 ◽  
pp. 18-24
Author(s):  
Р.В. Борисов ◽  
А.А. Лузянин
Keyword(s):  
Regulatory Framework ◽  
Irregular Waves ◽  
Regulatory Requirements ◽  
International Convention

Настоящая статья является четвертой из цикла статей, посвященных корректировке кодекса ИМО по остойчивости в части ограничений продольной качки. В ней рассмотрены подходы к ограничениям по погоде из условий, возникающих при продольной качке для судов различных типов и предложены критерии оценки этих явлений на нерегулярном волнении разной интенсивности. На основании выполненных систематических расчетов продольной качки на нерегулярном волнении получены зависимости вероятности заливаемостиот скорости и интенсивности волнения для транспортных судов. Полученные формулы позволяют оценить указанный показатель мореходности. При этом ставится цель расширения нормативной базы для обоснованного назначения эксплуатационных ограничений по погоде и району плавания судов при совершенствовании Правил Российского Морского Регист­ра Судоходства на основе общего подхода к нормированию мореходности, со­гласующегося с методикой разработки новой Международной конвенции о гру­зовой марке 2000. Предлагаемый подход к определению дополнительных критериев мореходности для оценки эксплуатационных ограничений судов по погоде из условий мореходности может быть использован на практике для совершенст­вования нормативных требований Регистра. This article is the fourth in a series of articles devoted to the amendment of the IMO stability code in terms of pitching limitations. It considers approaches to weather restrictions based on the conditions arising during pitching for ships of various types and proposes criteria for assessing these phenomena on irregular waves of different intensities. Based on the performed systematic calculations of pitching on irregular waves, the dependences of the probability of flooding on the speed and intensity of waves for transport vessels were obtained. The formulas obtained make it possible to estimate the indicated seaworthiness indicator. At the same time, the goal is to expand the regulatory framework for the justified assignment of operational restrictions on the weather and the area of ​​navigation of ships while improving the Rules of the Russian Maritime Register of Shipping on the basis of a general approach to the regulation of seaworthiness, consistent with the methodology for developing a new International Convention on Load Mark 2000. The proposed approach to the determination of additional seaworthiness criteria for assessing the operational limitations of ships by weather based on seaworthiness conditions can be used in practice to improve the regulatory requirements of the Register.

On the development of the draft requirements for the rules of the Register of Shipping in terms of limiting accelerations

2021 ◽  
pp. 15-20
Author(s):  
Р.В. Борисов ◽  
А.А. Лузянин
Keyword(s):  
Regulatory Framework ◽  
Irregular Waves ◽  
Regulatory Requirements ◽  
International Convention ◽  
Vertical Accelerations ◽  
Definition Of

Настоящая статья является пятой из цикла статей, посвященных корректировке кодекса ИМО по остойчивости в части ограничений продольной качки. В ней рассмотрены подходы к ограничениям по погоде из условий, возникающих при продольной качке для судов различных типов и предложены критерии оценки этих явлений на нерегулярном волнении разной интенсивности. На основании выполненных систематических расчетов продольной качки на нерегулярном волнении получены зависимости вертикальных ускорений по длине судна от скорости и интенсивности волнения для транспортных судов. Полученные формулы позволяют оценить указанный показатель мореходности. При этом ставится цель расширения нормативной базы для обоснованного назначения эксплуатационных ограничений по погоде и району плавания судов при совершенствовании Правил Российского Морского Регистра Судоходства на основе общего подхода к нормированию мореходности, со­гласующегося с методикой разработки новой Международной конвенции о грузовой марке 2000. Предлагаемый подход к определению дополнительных критериев мореходности для оценки эксплуатационных ограничений судов по погоде из условий мореходности может быть использован на практике для совершенст­вования нормативных требований Регистра. This article is the fifth in a series of articles devoted to the adjustment of the IMO stability code in terms of pitching limitations. It considers approaches to weather restrictions based on the conditions arising during pitching for ships of various types and proposes criteria for assessing these phenomena on irregular waves of different intensities. On the basis of the performed systematic calculations of pitching on irregular waves, the dependences of vertical accelerations along the length of the vessel on the speed and intensity of waves for transport vessels were obtained. The formulas obtained make it possible to estimate the specified indicator of seaworthiness. At the same time, the goal is to expand the regulatory framework for the justified assignment of operational restrictions on the weather and the area of navigation of ships while improving the Rules of the Russian Maritime Register of Shipping on the basis of a general approach to the regulation of seaworthiness, consistent with the methodology for the development of a new International Convention on Load Mark 2000 . The proposed approach to the definition of additional seaworthiness criteria for assessing the operational limitations of ships by weather based on seaworthiness conditions can be used in practice to improve the regulatory requirements of the Register.

On the development of the draft requirements of the rules of the Register of Shipping in terms of restrictions on sleming and exposing the screw

2021 ◽  
pp. 48-52
Author(s):  
Р.В. Борисов ◽  
А.А. Лузянин
Keyword(s):  
Regulatory Framework ◽  
Irregular Waves ◽  
Regulatory Requirements ◽  
International Convention ◽  
The Third ◽  
Definition Of

Настоящая статья является третьей из цикла статей, посвященных корректировке кодекса ИМО по остойчивости в части ограничений продольной качки. В ней рассмотрены подходы к ограничениям по погоде из условий, возникающих при продольной качке для судов различных типов и предложены критерии оценки этих явлений на нерегулярном волнении разной интенсивности. На основании выполненных систематических расчетов продольной качки на нерегулярном волнении получены зависимости вероятности слеминга и оголения винта от скорости и интенсивности волнения для транспортных судов. Полученные формулы позволяют оценить указанные показатели мореходности. При этом ставится цель расширения нормативной базы для обоснованного назначения эксплуатационных ограничений по погоде и району плавания судов при совершенствовании Правил Российского Морского Регист­ра Судоходства на основе общего подхода к нормированию мореходности, со­гласующегося с методикой разработки новой Международной конвенции о гру­зовой марке 2000. Предлагаемый подход к определению дополнительных критериев мореходности для оценки эксплуатационных ограничений судов по погоде из условий мореходности может быть использован на практике для совершенст­вования нормативных требований Регистра. This article is the third in a series of articles devoted to the adjustment of the IMO stability code in terms of pitching limitations. It considers approaches to weather restrictions based on the conditions arising during pitching for ships of various types and proposes criteria for assessing these phenomena on irregular waves of different intensities. Based on the performed systematic calculations of pitching on irregular waves, the dependences of the probability of slamming and propeller bareness on the speed and intensity of waves for transport vessels were obtained. The formulas obtained make it possible to evaluate the indicated seaworthiness indicators. At the same time, the goal is to expand the regulatory framework for the justified assignment of operational restrictions on the weather and the area of navigation of ships while improving the Rules of the Russian Maritime Register of Shipping on the basis of a general approach to the regulation of seaworthiness, consistent with the methodology for the development of a new International Convention on Load Mark 2000 The proposed approach to the definition of additional seaworthiness criteria for assessing the operational limitations of ships by weather based on seaworthiness conditions can be used in practice to improve the regulatory requirements of the Register.

scholarly journals Regulatory Requirements on the Competence of Remote Operator in Maritime Autonomous Surface Ship: Situation Awareness, Ship Sense and Goal-Based Gap Analysis

2020 ◽  
Vol 10 (23) ◽  
pp. 8751
Author(s):  
Masanori Yoshida ◽  
Etsuro Shimizu ◽  
Masashi Sugomori ◽  
Ayako Umeda
Keyword(s):  
Remote Control ◽  
Situation Awareness ◽  
Gap Analysis ◽  
Group Discussion ◽  
Vital Role ◽  
Regulatory Framework ◽  
Regulatory Requirements ◽  
Mass System ◽  
International Convention ◽  
Surface Ship

Maritime Autonomous Surface Ship (MASS) has been developed recently, and demonstration projects have been carried out internationally. Considering the full autonomous level is unlikely to be addressed shortly, remote control centre and Remote Operator (RO) will play a vital role in the MASS system. Although competence of watchkeeping at the ship’s bridge is inevitable for RO to avoid ship accidents caused by human errors, international requirements have not been introduced yet. This paper presents a way to develop the regulatory framework on the competence of RO based on the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW) by exploring the concept of Situation Awareness (SA). Goal-Based Gap Analysis (GBGA) is constructed based on the human-behaviour model and the required information for SA. A case study through the mini focus group discussion with interviews by a total of three (3) veteran instructors of training ships is conducted utilising the information including the results of previous demonstration projects on the remote control. The results show the relationship between required information and ship sense, shortage of these factors when RO is operating, additional competence and possible regulatory requirements for RO. The findings support the usefulness of GBGA and pave the way to develop a regulatory framework for RO further.

scholarly journals On the development of the project of requirements of the rules of RS into account of limitations for pitching

2020 ◽  
Author(s):  
Р.В. Борисов ◽  
А.А. Лузянин
Keyword(s):  
Weather Conditions ◽  
Irregular Waves ◽  
General Criterion ◽  
Regulatory Requirements ◽  
International Convention ◽  
Load Line ◽  
Ship Navigation ◽  
Definition Of

Настоящая статья является второй из цикла статей, посвященных корректировке кодекса ИМО по остойчивости в части ограничений продольной качки. В ней рассмотрены подходы к ограничениям по погоде из условий, возникающих при продольной качке для судов различных типов и предложены критерии оценки этих явлений на нерегулярном волнении разной интенсивности. На основании выполненных систематических расчетов продольной качки на нерегулярном волнении получены зависимости амплитуд вертикальной и килевой качки, а также дополнительного сопротивления от скорости и интенсивности волнения для транспортных судов. Полученные формулы позволяют оценить отдельные показатели мореходности. При этом ставится цель расширения нормативной базы для обоснованного назначения эксплуатационных ограничений по погоде и району плавания судов при совершенствовании Правил Российского Морского Регист­ра Судоходства на основе общего подхода к нормированию мореходности, со­гласующегося с методикой разработки новой Международной конвенции о гру­зовой марке 2000. Предлагаемый подход к определению дополнительных критериев мореходности для оценки эксплуатационных ограничений судов по погоде из условий мореходности может быть использован на практике для совершенст­вования нормативных требований Регистра. This article is the first in a series of articles on the revision of the IMO code on stability in terms of longitudinal pitching restrictions. It describes the approaches to the restrictions on the weather conditions that occurs when the longitudinal pitching is accompanied by flooding of the deck and slaming for ships of various types and the criteria of assessment of these phenomena on an irregular waves of varying intensity At the same time, the goal is to expand the normative base for the reasonable designation of operational restrictions on weather and ship navigation area while improving the Rules of the Russian Maritime Register of Shipping on the basis of a general approach to the rationing of seaworthiness consistent with the methodology for developing the new International Convention on Load Line 2000. The proposed approach to the definition of an additional General criterion of seaworthiness to assess the operational limitations of ships on weather conditions of seaworthiness can be used in practice to improve the regulatory requirements of the Register.

scholarly journals Herbicides from the group of nitrodiphenyl ethers: applications in Ukraine, control methods, methods for determination of oxifluorphene residues in soybean grain and oil

2021 ◽  
Vol 20 (66) ◽  
pp. 15-23
Author(s):  
Yu Baranov ◽  
◽  
V Demchenko ◽  
Ie Zajets ◽  
S Olszewski ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Selective Extraction ◽  
Agricultural Products ◽  
Gas Liquid Chromatography ◽  
Control Methods ◽  
Liquid Chromatography Mass Spectrometry ◽  
Analytical Validation ◽  
Regulatory Requirements ◽  
Food And Feed

A review of analytical methods for the determination of herbicide residues from the group of nitrodiphenyl ethers in the environment and agricultural products, developed and validated a method for oxyfluorfen determination in soybean grain and oil method GC/ECD, which meets regulatory requirements and solves the problem of toxicant control in the above matrices. The developed method uses modern methods of sample preparation, identification and quantification of oxyfluorfen (selective extraction, capillary gas-liquid chromatography (GC/ECD GC/MS). The method is validated according to EU requirements) (SANTE/12682/2019 quality control and analytical validation procedures for pesticide residues analysis in food and feed). Key words: gas-liquid chromatography, mass spectrometry, herbicides, nitrodiphenyl ethers, control, residual amounts.

Time Simulation of Water Shipping for a Ship Advancing in Large Longitudinal Waves

1993 ◽  
Vol 37 (02) ◽  
pp. 126-137
Author(s):  
Ming-Chung Fang ◽  
Ming-Ling Lee ◽  
Chwang-Kuo Lee
Keyword(s):  
Nonlinear Effects ◽  
Ship Motion ◽  
Irregular Waves ◽  
Wave System ◽  
Time Step ◽  
Large Wave ◽  
Time Simulation ◽  
Head Waves ◽  
Speed Effect

The technique of time-domain numerical simulation for the occurrence of water shipping on board in head waves is presented. The nonlinear effects of the large-amplitude motion are treated. These nonlinear factors include the effect of large wave amplitude, large ship motion, the change of hull configuration below the free surface and the nonlinear resultant wave. Therefore, the variation of the potentials and the hydrodynamic coefficients for a ship at each time step must be carefully treated. While handling the determination of the instantaneous wave surface around the ship hull, the complete incident, diffracted, and radiated wave system is used rather than the incident wave only. The complexity of the ship speed effect on the related terms is also treated at each time step, especially for the radiation problems. An experimental setup is also designed to measure the motion response and the relative motion, and comparisons are made. The results show excellent agreement and the validity of the theory is confirmed. The successful development of the present technique can be extended to analyze the dynamic stability, capsize phenomena, and ship motion in irregular waves

Fundamental review of the trading book: state of art on implementation of Standardised Approach

2021 ◽  
Vol 16 (2) ◽  
pp. 10-20
Author(s):  
Nicoletta Figurelli ◽  
◽  
Carlo Frazzei ◽  
Alessandro Garufi ◽  
Tommaso Giordani ◽  
...  
Keyword(s):  
Risk Management ◽  
Best Practices ◽  
Financial Institutions ◽  
Regulatory Framework ◽  
Regulatory Requirements ◽  
Basel Committee ◽  
Key Points ◽  
Front Office ◽  
State Of Art ◽  
The Eu

Following the publication of the regulatory framework for the Fundamental Review of the Trading Book (FRTB) by both the Basel Committee (BCBS) and the EU Regulator, the Financial Institutions have started the mandatory actions to comply with the new regulatory requirements. This article aims to provide an overview of the key challenges that banks have had to face in recent years, with a particular focus on the most significant methodological key points and the main impacts on business from the technicalities of the new regulatory framework, in order to provide guidelines and best practices on Standardized Approach (SA) topics shared between Risk Management and Front Office

Experimental Determination of Water Motions Inside a Moonpool

2017 ◽  
Author(s):  
Bastien Abeil
Keyword(s):  
Experimental Determination ◽  
Transfer Functions ◽  
Side Wall ◽  
Model Tests ◽  
Irregular Waves ◽  
Video Recordings ◽  
Non Linear ◽  
Relative Water ◽  
Water Elevation

Model tests of a drillship with a rectangular moonpool opening were conducted in regular and irregular waves from the bow and bow-quarter. Most tests were conducted at zero speed, the rest was performed with the model towed to a speed of 10 kn. From the video-recordings and transfer functions of the measured relative water elevation inside the moonpool, the typical piston and first sloshing modes are well captured, for wave frequencies that agree relatively well with relevant formulations. A few tests conducted at varying wave amplitudes show that the water elevation is non-linear by nature, while repeat tests conducted with the moonpool fitted with two layers of side wall flanges shows that these can reduce the water motions by nearly 40 %.

scholarly journals Analysis of Dyes in Cosmetics: Challenges and Recent Developments

Cosmetics ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 47 ◽  
Author(s):  
Eugenia Guerra ◽  
Maria Llompart ◽  
Carmen Garcia-Jares
Keyword(s):  
Decisive Role ◽  
Analytical Control ◽  
Synthetic Dyes ◽  
Regulatory Requirements ◽  
Cosmetic Product ◽  
Hydrophilic Nature ◽  
Cosmetic Ingredients ◽  
World Markets ◽  
Recent Developments

Colour plays a decisive role in the marketing of a cosmetic product. Among thousands of substances used to colour, synthetic dyes are the most widespread in the industry. Their potential secondary effects on human health and different regulatory requirements for their use between the main world markets make analytical control necessary to guarantee the safety of a cosmetic product. However, methodologies for the determination of dyes in cosmetics are scarce with respect to those reported for other cosmetic ingredients such as preservatives or ultraviolet UV filters. In addition, most of the existing methods just consider a part of the total of dyes regulated. On the other hand, many methods have been developed for matrices different than cosmetics such as foodstuff, beverages or wastewater. The current paper reviews the recent developments in analytical methodologies for the control of synthetic dyes in cosmetics proposed in the international scientific literature in the last 10 years (2008–2018). A trend towards the use of miniaturized extraction techniques is evidenced. Due to the hydrophilic nature of dyes, liquid chromatography is the most usual choice in combination with absorbance detectors and, more recently, with mass spectrometry.

Application of Focusing Wave Groups in Model Testing Practice

2014 ◽  
Author(s):  
Christian Schmittner ◽  
Joris Brouwer ◽  
Janou Hennig
Keyword(s):  
Hydrodynamic Model ◽  
Transfer Functions ◽  
Theoretical Description ◽  
Model Testing ◽  
Historical Background ◽  
Irregular Waves ◽  
Transient Wave ◽  
Wave Groups ◽  
Floating Structures

For hydrodynamic model testing different types of model waves are applied, where the most common ones are regular (monochromatic) and irregular (multichromatic) waves. In addition to these wave types the application of focusing wave groups, which are also often denoted as wave packages or transient wave packets, can give insight into aspects that cannot be assessed by the conventional model waves. This paper describes the different applications of focusing wave groups for hydrodynamic model testing. The paper starts with the historical background, followed by a theoretical description and the generation procedure. The main part of the paper is dedicated to the practical application of focusing wave groups in the basin. Items that will be described are a) the derivation of transfer functions for floating structures and for anti-roll tanks b) the determination of hydraulic and electrical transfer function of wave makers c) the verification of position and calibration of wave probes in the basin d) the generation of extreme wave events e) the assessment of reflection coefficient of beaches f) the investigation of non-linear aspects of transfer functions. Finally, characteristics of the analysis of focusing waves are introduced and compared to conventional methods based on regular and irregular waves.

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