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2020

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Articles 1621 - 1650 of 10642

Full-Text Articles in Engineering

Impact Of 3d Simulation Modeling On Architectural Design Education, Osama Omar, Rania El Messeidy, Maged Youssef Oct 2020

Impact Of 3d Simulation Modeling On Architectural Design Education, Osama Omar, Rania El Messeidy, Maged Youssef

Architecture and Planning Journal (APJ)

Throughout the last few decades, architectural design education has witnessed several changes. One of these changes was using 3D Simulation modeling technology into design process. With the rise of environmental approach in design, new 3D simulation applications started to invade studios and laboratories of design. These applications proved an obvious efficiency for the architectural form concerning thermal adaptation, ideal lighting, and most appropriate ventilation. Lately, Arabic countries imported this technology into its schools of architecture, but unfortunately students faced obstacles in applying it in their design projects. Although there are certain courses, such as; 'Environmental Design', 'Indoor Environmental Control', and …

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Navigating Through ‘Layers’ As A Pedagogical Approach In Architectural Teaching, Christakis Chatzichristou Oct 2020

Navigating Through ‘Layers’ As A Pedagogical Approach In Architectural Teaching, Christakis Chatzichristou

Architecture and Planning Journal (APJ)

The pedagogical approach presented here looks at the benefits of teaching design by encouraging the creation of layers and layers of ‘presented’, as opposed to ‘represented’, material, the navigation through which can prove to be a quite creative process. For the longest time architecture has been using a rather narrow set of media; the sketch, the diagram, the orthogonal and perspectival views, and the model were the main means through which the student of architecture followed a rather linear design process which led from concept to an architectural proposal. And while acknowledging that the use of the computer clearly offers …

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Problems Of Design Juries In Schools Of Architecture, Lamis Kanso, Maged Alyyoussef Oct 2020

Problems Of Design Juries In Schools Of Architecture, Lamis Kanso, Maged Alyyoussef

Architecture and Planning Journal (APJ)

Throughout the last few decades, the architectural design education has passed many phases of critique and evaluation development. The process of critique continues in the different stages of design, starting from choosing the site, until the final submission. The jury committees are often held at the final stage in order to evaluate the architectural product. Although there are specific methods to systemize the process of evaluation, but unfortunately some academic members in jury committees do not apply these methods, which results in negative judgments on student’s project, and that could generate a feeling of dissatisfaction. This paper, therefore, aims to …

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Towards Sustainability Of Architectural Education Programs In Publicuniversities In Egypt: Cairo University Case Study, Asmaa Saleh Oct 2020

Towards Sustainability Of Architectural Education Programs In Publicuniversities In Egypt: Cairo University Case Study, Asmaa Saleh

Architecture and Planning Journal (APJ)

More than a decade ago; the concept of sustainability had a great concern from the whole world because of the global warming dilemma. Sustainability is a paradigm that contains environmental, economic and social factors. Many governments have adopted the sustainability paradigm especially in the MENA region as they are the most affected by global warming. In Egypt, within the government role in paving the way to sustainability; principles of sustainable development has been integrated into the country's policies and programs in reflection to sustainable development strategy of Egypt's vision 2030. However, the concept of sustainability is still considered as a …

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Architectural Body: Performance As Design Methodology Facilitating Transformative Learning, Takako Hasegawa Oct 2020

Architectural Body: Performance As Design Methodology Facilitating Transformative Learning, Takako Hasegawa

Architecture and Planning Journal (APJ)

This paper will discuss multidisciplinary and experimental pedagogical case studies that place the importance of the body firmly back into architectural education. The advanced digital technologies currently employed almost universally in architectural education generate increasingly virtual and augmented design, resulting from processes that tend to be devoid of imagination of the body. The case studies discussed in this paper involved students’ direct participation in performative acts during the design process, facilitating positive transformative learning through direct experience. These include design briefs for Chelsea College of Arts (London, UK, 2009–2013), modules for the Architectural Association School of Architecture (AA) (London, UK, …

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Re-Thinking Bloom's Taxonomy By Integrating Digital Simulation In, Samer El Sayary, Hiba Mohsen, Lamis Mantash Oct 2020

Re-Thinking Bloom's Taxonomy By Integrating Digital Simulation In, Samer El Sayary, Hiba Mohsen, Lamis Mantash

Architecture and Planning Journal (APJ)

Despite the significant developments in adapting Bloom's taxonomy in architectural design studio in the last few years, in addition to the advancements in applying digital media in the education process, there is still no integrated framework that combines all threads together. The learning objectives of advanced design studio include pragmatic thinking through testing new hypotheses, evaluating and applying different parameters, and identifying appropriate decisions. These are only achieved once barriers between design studio and building sciences considerations are overcome by addressing the process of simulation across the domains and levels of the revised Bloom's taxonomy. The Design Studio and building …

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Potential Of Zero Charge-Based Capacitive Deionization, Xin Gao, Ayokunle Omosebi, James Richardson Landon, Kunlei Liu Oct 2020

Potential Of Zero Charge-Based Capacitive Deionization, Xin Gao, Ayokunle Omosebi, James Richardson Landon, Kunlei Liu

Center for Applied Energy Research Faculty Patents

The invention is a capacitive, aka electrostatic, deionization apparatus and method that solves the problem of short lifetime of conventional capacitive deionization (CDI) and of membrane capacitive deionization (MCDI) devices and methods by shifting the Potential of Zero Charge of electrode surfaces through surface modifications. Such electrode surface modifications provide very long lifetime capacitive deionization devices and methods.

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Water Treatment System With Ultraviolet Leds And Photo-Catalysts, Morgan Russell, John E. Stubbs, David M. Kempisty Oct 2020

Water Treatment System With Ultraviolet Leds And Photo-Catalysts, Morgan Russell, John E. Stubbs, David M. Kempisty

AFIT Patents

A reactor system for treating contaminated water is disclosed. The reactor system includes a reactor vessel having first and second end portions and an internal reactor volume defined by interior surfaces of the reactor vessel. A fluoropolymer coating is applied over at least a portion of the interior surfaces of the reactor vessel. The reactor system also includes a water inlet disposed in the first end portion and a water outlet disposed in the second end portion. At least one ultraviolet light-emitting diode (LED) is included and disposed so as to project ultraviolet light into the reactor vessel. A plurality …

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Analyzing The Structural Properties Of Fire Clay Bricks After Adding Cigarette Filters, Karim Galal Abdullatif, Marianne N. Guirguis, Rania Rushdy Moussa Oct 2020

Analyzing The Structural Properties Of Fire Clay Bricks After Adding Cigarette Filters, Karim Galal Abdullatif, Marianne N. Guirguis, Rania Rushdy Moussa

Architectural Engineering

Cigarette filters are one of the most littered objects in the world that damage the environment. Incorporation in construction bricks offers the prospect of limiting damage and solves the recyclability problem for a typical non-biodegradable waste. This paper aims to explore that prospect, by adding cigarette filters in the production of two samples of fired clay bricks with the cigarette filters comprising 5% and 10% of the volume. The mixing and molding processes were done manually which had an effect on the bricks when tested, The results of testing were corresponding with those of previous studies (outside Egypt), however, only …

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Dynamic Analysis Of Viscoelastic Circular Diaphragm Of A Mems Capacitive Pressure Sensor Using Modified Differential Transformation Method, Dr Olurotimi A. Adeleye, Muritala Yusuf, Oluwaseyi .. Balogun Oct 2020

Dynamic Analysis Of Viscoelastic Circular Diaphragm Of A Mems Capacitive Pressure Sensor Using Modified Differential Transformation Method, Dr Olurotimi A. Adeleye, Muritala Yusuf, Oluwaseyi .. Balogun

Karbala International Journal of Modern Science

In this paper, a dynamic analysis of the viscoelastic circular diaphragm of a Micro-Electro-Mechanical System (MEMS) capacitive pressure sensor using the Modified Differential Transformation Method (MDTM) is presented. The MEMS technology has been increasingly used to fabricate sensors and actuators and the MEMS capacitive pressure sensor is emerging in many high-performance applications. The deflection of these sensors diaphragm (plate) depends largely on the material of the diaphragm. In this study, a circular diaphragm of viscoelastic material is modeled using the classical plate theory. The governing differential equation is solved using Modified Differential Transformation Method (MDTM) and the result is validated …

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A Novel Energy-Efficient Sensor Cloud Model Using Data Prediction And Forecasting Techniques, Kalyan Das, Satyabrata Das, Aurobindo Mohapatra Oct 2020

A Novel Energy-Efficient Sensor Cloud Model Using Data Prediction And Forecasting Techniques, Kalyan Das, Satyabrata Das, Aurobindo Mohapatra

Karbala International Journal of Modern Science

An energy-efficient sensor cloud model is proposed based on the combination of prediction and forecasting methods. The prediction using Artificial Neural Network (ANN) with single activation function and forecasting using Autoregressive Integrated Moving Average (ARIMA) models use to reduce the communication of data. The requests of the users generate in every second. These requests must be transferred to the wireless sensor network (WSN) through the cloud system in the traditional model, which consumes extra energy. In our approach, instead of one second, the sensors generally communicate with the cloud every 24 hours, and most of the requests reply using the …

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Study Of Dynamics Of The Twisting Process In Pneumomechanical Spinning In The Presence Of Double False Spinning, Mirzohid Sayidmurodov Oct 2020

Study Of Dynamics Of The Twisting Process In Pneumomechanical Spinning In The Presence Of Double False Spinning, Mirzohid Sayidmurodov

Acta of Turin Polytechnic University in Tashkent

В данной работе представлены результаты исследования динамики процесса кручения пряжи пневмомеханического прядения (пневмомеханического прядения) при наличии двойного ложного кручения, построены динамические математические модели процесса кручения пряжи пневмомеханического прядения. при наличии двойного ложного скручивания в режимах неустановившегося пуска и остановке формовочно-скручивающего устройства.

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Theoretical Studies Of Spinning Line Parameters Of Ring Spinning Machines, Nurilla Dadaxanov Oct 2020

Theoretical Studies Of Spinning Line Parameters Of Ring Spinning Machines, Nurilla Dadaxanov

Acta of Turin Polytechnic University in Tashkent

The article studies the angle of discharge of exhaust devices and obtaining of analytical dependencies for calculating the angle of flow around the sliver of the exhaust cylinder on the spinning line of ring spinning machines.

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Simulation Of Forced Vibrations Of The Elements Of A Sewing Machine’S Compound Foot, Sabrina Djamolitdinovna Mukhamedjanova Article Oct 2020

Simulation Of Forced Vibrations Of The Elements Of A Sewing Machine’S Compound Foot, Sabrina Djamolitdinovna Mukhamedjanova Article

Acta of Turin Polytechnic University in Tashkent

The article presents the results of the study of de- sign features of the foot of sewing machines. The effective design scheme and operating principle of the sewing machine foot are pre- sented. Mathematical models of forced oscillations of the elastic plate and the upper plate with the power and rod of the composite foot with the elastic elements are obtained.

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A New Technical Solution For Cleaning The Water Intake Structure Of Pumping Stations From Siltation And Its Experimental Research, M.M. Mukhammadiev, S.R. Juraev Oct 2020

A New Technical Solution For Cleaning The Water Intake Structure Of Pumping Stations From Siltation And Its Experimental Research, M.M. Mukhammadiev, S.R. Juraev

Irrigation and Melioration

The article considers one of the most pressing problems of pumping stations in the irrigation system today, their blurring of the bottom of the water intake (avancamera and water intake chambers), analyzes the existing proposals, designs and technical solutions and their advantages and disadvantages. Given the above advantages and disadvantages, a new design has been proposed for the treatment of water intake structures from turbid sediments with minimal energy and capital expenditures, very cheap and simple to operate and reliable. The design includes a turbid suction pump and a turbid pump, as well as a pulp pipeline. The pressurized water …

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Assessing Surface Water Features Using Landsat-8 Oli And Sentinel-1 Satellite Images Case Study Sirdaryo Region, S.M. Muratov, Kh.A. Abdivaitov, Sh.F. Rahmatillayev Oct 2020

Assessing Surface Water Features Using Landsat-8 Oli And Sentinel-1 Satellite Images Case Study Sirdaryo Region, S.M. Muratov, Kh.A. Abdivaitov, Sh.F. Rahmatillayev

Irrigation and Melioration

Water resources have become a very big problem in every part of Uzbekistan for several decades. Water is used not only exclusively for agricultural development, but also for many other purposes, such as industrial and chemical activities. Therefore, it is important to study the properties of surface water objects using optical and microwave satellite images. The Syrdarya region was selected for research. Because in the past, there have been no studies of water bodies using satellite images. The article presents the results of studies on the assessment of water properties from optical and microwave satellite images. In research for optical …

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Distribution Of Pressure And Specific Energy In The Twirled Stream For Confusor, A.A. Yangiev, D.S. Adjimuratov Oct 2020

Distribution Of Pressure And Specific Energy In The Twirled Stream For Confusor, A.A. Yangiev, D.S. Adjimuratov

Irrigation and Melioration

Article brings up the advantage of confusor part application in outflow part of vortex spillway, which may be more rational from the point of view of providing non-cavitation operation of flow swirler. Analytical design method and program developed is given of pressure and specific energy for aerated part of swirled flow in vortex spillway confusor part, which match with experimental results, it allows for fast and quite accurate realization of distribution analysis for pressure and specific energy in swirled flow along the length of the confusor for various rates of taper.

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Economic Assesment Of The Impact Of Climate Factors On Wheat Yield In Samarkand Region, Sh.B. Babakholov Oct 2020

Economic Assesment Of The Impact Of Climate Factors On Wheat Yield In Samarkand Region, Sh.B. Babakholov

Irrigation and Melioration

Agricultural production is highly vulnerable to climate shocks and predicted climate consequences may pose severe challenges to the resilience of Uzbek agricultural system, especially in terms of food security and income stability of rural producers. In this context, present study proposed to assess the impact of climate factors, such particular changes in mean temperature and rainfalls on total output of wheat-cultivating farmers in Samarkand region. By considering irrigation source and heterogeneous geography of the region, farmers engaged in wheat production were analyzed in two: upstream and downstream zones using Fixed effect panel approach. The empirical findings of study revealed that, …

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Change In Level Water In Pumping-Plant Intake, R.R. Ergashev, B.T. Xolbutayev Oct 2020

Change In Level Water In Pumping-Plant Intake, R.R. Ergashev, B.T. Xolbutayev

Irrigation and Melioration

A decrease in the water level in the pump chamber of the pumping stations leads to the formation of whirlpools in front of the suction pipes. As a result of air intake, the pump unit operates in cavitation mode and their intensive wear occurs. As the data obtained from the Karshi machine channel show, mainly a decrease in design water levels in the downstream waters is observed at the first pumping station. Depending on the number of simultaneously operating pumping units, the minimum water level in the head pumping station should be from 4.5 m to 5.7 m. The received …

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Modeling The Impact Of Changes In The Ground Water Level On The Stability Of Agricultural Landscapes Using Gis, A.M. Arifjanov, L.N. Samiev, F.K. Babajanov, G.M. Xamdamova, Sh.N. Yusupov Oct 2020

Modeling The Impact Of Changes In The Ground Water Level On The Stability Of Agricultural Landscapes Using Gis, A.M. Arifjanov, L.N. Samiev, F.K. Babajanov, G.M. Xamdamova, Sh.N. Yusupov

Irrigation and Melioration

The article presents modern GIS methods for determining the stability of changes in irrigated areas and the depth of the ground water level.the most correct solutions are given in modeling this process. To distinguish agricultural landscapes, the classification of agricultural acreage in the lower part of the Amu Darya river region was made using 16-day periodic rasters 2017 of 2018 and the NDIS MOD13Q1 sensor of agricultural acreage, type NDVI. The annual change in the level of underground water in relation to the state of rivers and channels is analyzed. A steady change in agricultural acreage on the right Bank …

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Determination And Assessment Of The Spatio-Temporal Changing Dynamics In The Groundwater Level And Mineralization In Irrigated Areas Under Climate Change (As An Example Of Syrdarya Province), S. Khasanov, S. Adilov, R. Kulmatov Oct 2020

Determination And Assessment Of The Spatio-Temporal Changing Dynamics In The Groundwater Level And Mineralization In Irrigated Areas Under Climate Change (As An Example Of Syrdarya Province), S. Khasanov, S. Adilov, R. Kulmatov

Irrigation and Melioration

In the irrigated lands of the Aral Sea Basin, salinization processes are taking place as a result of rising groundwater levels and increasing its mineralization due to the unsustainable use of water and land resources. This, in turn, leads to the withdrawing of arable land and a decrease in crop yields. This is especially the case in the irrigated areas of the lower reaches of the Amudarya and Syrdarya rivers, located in Uzbekistan, southern Kazakhstan, and Turkmenistan. This research was aimed to learn and evaluate the long-term changing behavior of groundwater level and mineralization in the irrigated areas of the …

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Increasing The Efficiency Of Water Distribution Management When Operating Pumping Stations Of The Irrigation System, O.Y. Glovatsky, R.R. Ergashev, B. Hamdamov, N.M. Ismailov, B.T. Kholbutaev Oct 2020

Increasing The Efficiency Of Water Distribution Management When Operating Pumping Stations Of The Irrigation System, O.Y. Glovatsky, R.R. Ergashev, B. Hamdamov, N.M. Ismailov, B.T. Kholbutaev

Irrigation and Melioration

The article is to control the parameters of the unsteady movement of water in the canals and the pumping station, which ensure the maintenance of the specified operating modes of the pumping stations under non-stationary conditions. To achieve this goal, it is necessary to solve the problems of coordinating the operating modes of the units of the head pumping station (PS) with the operating modes of the partitioning structures in the conditions of emptying and filling the ponds of the main canal with water. The article discusses the implementation of the method of water distribution control on the mathematical model …

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Analysis Of Theoretical And Natural Field Studies Of Reservoir Silling, A.M. Arifjanov, F. Gapparov, T.U. Apakhujayeva, S.N. Xoshimov Oct 2020

Analysis Of Theoretical And Natural Field Studies Of Reservoir Silling, A.M. Arifjanov, F. Gapparov, T.U. Apakhujayeva, S.N. Xoshimov

Irrigation and Melioration

The article developed a mathematical model of the processes of siltation of reservoirs, taking into account the energy state of the flow, and proposed a calculation method. In the process of siltation of the reservoir, the dependence of the volume on the change in the water level in the reservoir was estimated. On the basis of studies carried out in full-scale field conditions, the recommended calculation method is comparatively evaluated and analyzed. Field studies were carried out in the Chimkurgan, Tashkent and Yuzhno-Surkhan reservoirs. A relationship is obtained that expresses the dependence of the relative volume of siltation of the …

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Planed Dimension Of Flow Deformed By A Single Dam That Is Impermeable To Water From The Body, M.R. Bakiev, K.T. Yakubov, I.J. Asamatdinov Oct 2020

Planed Dimension Of Flow Deformed By A Single Dam That Is Impermeable To Water From The Body, M.R. Bakiev, K.T. Yakubov, I.J. Asamatdinov

Irrigation and Melioration

Coastal erosion is a type of water erosion that causes significant damage to the national economy each year: leaching of overland coastal crops, failure of protective dams, destruction of irrigation canals, dilapidated buildings and structures, among others. To combat leaching, cross-dams are used which are waterproof and water-permeable. The aim of this work was to develop a method for calculating the planned dimension of compressed flow with a transverse dam, which included comparing the lengths of the upper and lower tilt zones, the boundaries of individual zones and the results of research in the laboratory and in nature. According to …

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Research Of Energy Indicators Of Electric Drives With Frequency Converters (Frequency Converters) On The Operating Equipment Of Cotton Cleaning Plants, A.J. Isakov, B.K. Tukhtamishev, J.N. Tolipov Oct 2020

Research Of Energy Indicators Of Electric Drives With Frequency Converters (Frequency Converters) On The Operating Equipment Of Cotton Cleaning Plants, A.J. Isakov, B.K. Tukhtamishev, J.N. Tolipov

Irrigation and Melioration

The article deals with the theoretical and practical substantiation of the replacement of an unregulated electric drive of the main technological equipment of cotton refineries with a frequency-controlled electric drive. The influence of a change in the load on the motor shaft on the main parameters of the steady state is considered. In an asynchronous motor, with an increase in the load, slip increases to such a value at which the torque of the motor balances the increased moment of resistance. Considering that when the stator slip resistance is less than the critical one is a small fraction of the …

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Water Quality Of The Kaparas And Channel Reservoirs At The Tuyamuyun Hydro Complex, М. Ikramova, А. Khodjiev, I. Akhmedkhodjaeva Oct 2020

Water Quality Of The Kaparas And Channel Reservoirs At The Tuyamuyun Hydro Complex, М. Ikramova, А. Khodjiev, I. Akhmedkhodjaeva

Irrigation and Melioration

The country's available water resources are consumed by various sectors of economy, such as industry, agriculture, energy, communal services. Due to the limited water resources, there are problems in proper water supply to the population. The article provides an assessment of the degree of mineralization and basic ions in the water of the Kaparas and Channel reservoirs based on field studies and laboratory analyses taking into account water volumes in the reservoirs and changes in water level. At the same time, it was identified that water quality exceeds standard indicators. For example, at using water for irrigation purposes salinity was …

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Stabilization Of Discharge Processes Involved In Electrical Fields Of Electrostatic Precipitators, Sh.M. Muzafarov, B.N. Erkinov, A.I. Pardaev, V.E. Baliskiy, B.К. Tаgaev Oct 2020

Stabilization Of Discharge Processes Involved In Electrical Fields Of Electrostatic Precipitators, Sh.M. Muzafarov, B.N. Erkinov, A.I. Pardaev, V.E. Baliskiy, B.К. Tаgaev

Irrigation and Melioration

The article provides information on achievements in the field of electrical gas cleaning. A critical analysis of the principle of operation of the electrostatic precipitators developed and currently in operation is carried out. The possibility of increasing the efficiency of electrical gas cleaning using unipolar voltage pulses is analyzed. A theoretical analysis of the processes in the discharge gap was carried out using the existing theory of electric discharges in gases. Based on the analysis of the data, the discharge mechanism is established in a sharply inhomogeneous electric field at a pulsed voltage. It is established that when using voltage …

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Determination Of The Rational Values Of The Parameters Of The Disc Rollers Of The Combined Unit, A.K. Igamberdiev, D.K. Muqimova Oct 2020

Determination Of The Rational Values Of The Parameters Of The Disc Rollers Of The Combined Unit, A.K. Igamberdiev, D.K. Muqimova

Irrigation and Melioration

In our country, repeated crops are sown in newly plowed lands. In such conditions, the use of combined units that perform several technological operations simultaneously in one pass is considered effective. However, due to the inadequacy and validity of the parameters of the working bodies for the quality of pre-sowing tillage in newly plowed lands, there is an increase in the number of passes, fuel consumption, loss of soil moisture and other costs and, as a result, the possibility of timely sowing and friendly germination of repeated crops is reduced . The rational parameters of the new design of disk …

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Autonomous Photovoltaic System For Year-Round Guarantee Supply Of Electricity To Rural Facilities, M.N. Tursunov, Х. Sabirov, U.R. Kholov, Т.Z. Аkhtamov Oct 2020

Autonomous Photovoltaic System For Year-Round Guarantee Supply Of Electricity To Rural Facilities, M.N. Tursunov, Х. Sabirov, U.R. Kholov, Т.Z. Аkhtamov

Irrigation and Melioration

The article discusses the physical and technical features of the experimental results of studying the parameters of an autonomous photovoltaic station (AFES) with a power of 2600 W designed and manufactured on the basis of 16 photovoltaic batteries made of polycrystalline silicon with an efficiency of 15.6 %. It is shown that an autonomous photovoltaic efficiently and reliably provides electric energy a lighting system for car parking in the winter season (January and February) and it is planned to lift water from a well with a depth of 70-80 m for irrigation and maintenance of the Heliopoligon from April 2020. …

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Quantitative Evaluation Of Asphalt Binder Extraction From Hot Mix Asphalt Pavement Using Ashing And Centrifuge Methods, Ahmed Hemida, Magdy Abdelrahman, Eslam Deef-Allah Oct 2020

Quantitative Evaluation Of Asphalt Binder Extraction From Hot Mix Asphalt Pavement Using Ashing And Centrifuge Methods, Ahmed Hemida, Magdy Abdelrahman, Eslam Deef-Allah

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Asphalt binder requires more investigation to be accurately and precisely extracted since it is a significant procedure for quality control quality assurance (QC/QA) and subsequent binder characterization. In this research, the authors provided a hands-on experience with binder extraction to deliver recommendations concerning the sensitive steps that may affect the outcomes (extracted binder content, Pbe %). Based on the extraction by the centrifuge method, two mineral matter determination methods (ashing and centrifuge) were addressed. Field cores were investigated with comparing the Pbe % to the actual binder content, Pba %. Analysis of variance (ANOVA) and Tukey Post-Hoc …

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