. • Matrix path k is defined such that path k[i][j] is true if and only if there is path from nodeSome of the latest changes to the REPL (i. . Pad-Mounted Transformers and Switchgear [PREVIEW] This course discusses the basics of underground transformer operations. Distribution grid refers to the final stage of the electrical grid which distributes electricity to homes, industry, and other end users. This paper presents how transitive closures and their instantiations for all possible types of db interesting functions and function products are computed by the MatBase Datalog¬ subsystem. - 4 - by reference. Substation Equipment / Components. The power factor of a typical T/F is 0. Another problem is your relations are not reflexive, but you need reflexivity to get singleton equivalence sets. 34K subscribers in the Lineman community. 600 Volts. IndPredBelow true in inductive TransClosure (r : α → α → Prop) : α → α → Prop. r/Lineman. La capacidad mxima de los transformadores a utilizarse en esta unidad ser de 1. value Seattle, WA 981741 underground commercial distribution (ucd) installation and responsibility guide supplement to specifications for electrical installations electric system bulletin no. UPC: 782051062281. However, depending on what is immediately downstream of the transformer, and how far away it is, and what the path looks like between the two, your best option is likely to be bus bars. Shaking, trembling, and jerking are reliable indicators of transmission problems, and gear grinding is a common symptom in manual transmission cars. and that could have happened when pulling. The output data set Cycles contains any circular dependencies, and the data set TransClosure contains the transitive closure . Wall-Mounted Enclosures. And the additional units could be natural gas or bi-fuel, to give vastly extended run times that are usually unaffected by weather events. g. Let say the two T/Fs of Open-Delta configuration are supplying 3-phase power to a load having. S. List three common types of URD systems. Jump to solution. one transformer to service multiple customers. " That is, when we reach the end of a skolem bound, and encounter an existential, we deliberately force the fresh element to be collapsed with th. 3: Network Optimization Procedures documentation. . New comments cannot be posted and votes cannot be cast. #133. This paper introduces the algorithm that MatBase (an intelligent knowledge and database management system prototype) uses for enforcing acyclicities of binary Cartesian function products. You can do a lot to pad your résumé. It is also good for many forms of numeric computation and visualization. Ainsi, ce fourni des specifications formelles issues des deux approches differentes pour la definition des modeles de donnees: une basee sur l’algebre et l'autre basee sur la logique. Electric power may flow through several substations between the generating plant and the consumer, and the voltage may be changed in several steps. Combo Options: Breaker or fuse pullout (available at 400 Amps) Breaker Combos: Single 400–1200 Amps or 2/200 Amps breakers. Report on . NEC 2017 introduced the new first level subdivision 110. PREPA owns and operates electric generation, transmission and distribution facilities serving all of Puerto Rico. Proper tapering of the primary insulation requires taping the conductor as a protection to avoid damage by the knife blade. 1. Here is the last 20 lines of the logs: [seqwish. Within our Electric Network we have several transformers within transclosures. True. Photo 3. Shaking, trembling, and jerking are reliable indicators of transmission problems, and gear grinding is a common symptom in manual transmission cars. Deadbreak Apparatus Connectors Functional Specification Guide T-OP II Deadbreak Connector PS650007EN 1 of 2 • October 2016 • Supersedes October 2013 (G600-12-1)SAS® Visual Data Mining and Machine Learning: The NETWORK Procedure documentation. And if the transformer and the downstream. 0 RELATED STANDARDS 5. G = digraph(s,t) specifies directed graph edges (s,t) in pairs to represent the source and target nodes. What is a Transclosure? Within our Electric Network we have several transformers within transclosures. Air Insulated Switchgear Substation (Open Terminal Substation) Gas Insulated Switchgear Substation (Metal Clad Substation) Based on transmission voltage and function, the electric substation is classified into three types. sas. M. G = digraph(s,t) specifies directed graph edges (s,t) in pairs to represent the source and target nodes. To elaborate, a query such as: is R(x, y, z) true? (possibly provide the actual fact instances. . Meta. the size of URD cable is specified in (a) _____ or in (b) _____. Pad-Mounted Enclosures. It is important to label the phase-to-ground voltage because choosing the wrong value can result in damage to. Open delta transformers are three phase devices, with only two windings on each of the primary and secondary sides. Are these 10awg wires protected by the 30 amp breaker the only wires on the conduit? If this is the case I would verify the insulation as 10 AWG wiring has the ability to Handel much more than this the NEC has large safety margins for residential and the only times I have found warm conduit or 60 Hz noise available is when there is leakage to ground. Enhanced Incentives. A closing disclosure is a legally-required, five-page statement of your final mortgage loan terms and closing costs. Description. With this associativity, T(w12,w23,w34) is uniquely defined and is denoted as T(P14). Electric Utility Products. There is limited adoption of. Transitive Closure it the reachability matrix to reach from vertex u to vertex v of a graph. SAS Visual Data Mining and Machine Learning 8. NEWS: Transmission and Distribution Magazine has highlighted our TTDC connector line with the article Spacer Systems Get a New Connector - A new insulation piercing connector is created through a research and development program, followed by utility trials. [1] The result of transclusion is a single integrated. Instructions: The following standards are from AC 150/5370-10, Standards for Specifying Construction of Airports. It can also be used as the single point of control for a network of load banks. I have started to notice a buzzing noise in my car when going to neutral. Note that this is the rating of the equipment, not the rating of the OCPD protecting the service equipment. collapse all in page. *go to Ncees website and get the practice test (it is computer based now, but the offer one that they will grade for you. By Hubbell Power Systems. Supplement to Specifications for Electrical Installations General Requirements Above 600-Volt Service Electric System Bulletin No. Description. proc optnet graph_direction = directed data_links = LinkSetIn; transitive_closure out =. EE300T3H - Transformer, dry type, 300kVA, 3 phase, 480V delta primary, 208Y/120V secondary, 25D, 150C rise. . Study with Quizlet and memorize flashcards containing terms like Using Sheets A1 and A2 as references, locate and determine the approximate square foot area of Mechanical/Electrical Room 0. sas. n. Flexibility with one or two-door design, open bottom, and no center post, with overlapping door for added rigidity. Modern and elegant design. asking for the origin* e^0 should display two provenance sequents: one for e^0, one for e^1, which happens to be an alternate. Given the transitive closure of , you can. . For multigraphs with multiple edges between the same two nodes, the output graph replaces. These enclosures are suitable for low voltage splicing or cable termination from the secondary side of a utility’s transformer for multiple service feeds. Add to Project List. I can hear it coming from the area behind the front driver side. These power transfer hinges provide a concealed, vandal-resistant way to run wires from the door frame to doors equipped with exit devices and electric locks. Use external vibration dampeners along with flexible connections and mounting methods that prevent. 8, 25KV PRIMARY DISTRIBUTION Figure 3 - Transformer Pad and Transclosure. Power Factor with Two Transformers in 3-Phase Open-Delta Configuration. S&C’s “live-front” PMH Pad-Mounted Gear features directly accessible components which are readily visible during operation of the gear. by LindseyStone. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. 1. Utility companies including Public Service of New Hampshire and New Hampshire Electric Co-Op depend on the experienced A. For example, if the equivalence class members for e^0 are e^0 and e^1. I didn't try to install it manually as proposed by @agolicz. 3: Network Optimization Programming Guide documentation. <link rel="stylesheet" href="styles. Finally,. The engineer is calling for each service to hit three new ground rods. Here are the main styles of trash gates: 1. Data Migrationthe DFD `TransClosure function is provided. While the industry is still dealing with this challenge on certain projects, there now appears to be shortages of transclosure (transformers) provided by the utilities. In computer science, transclusion is the inclusion of part or all of an electronic document into one or more other documents by reference via hypertext. In a wiki context, it is the use of the template functionality of MediaWiki to include the same content in multiple documents without having to edit those documents separately. A set of 13 (per phase) 500 MCM conductors might get you there. As input we typically take all-versus-all alignments, but the exact structure of the alignment set may be defined in an application specific way. All CT cabinets are "bussed / lugged" with CT mounting rack included. There is a device called a transclosure that one might use in this application, when there are serious quantities of wire to parallel and/or tap. Finally, I tried to install again pggb via mamba instead of. Select a different version from the version selector in the banner, or access the latest documentation. E. ElOlP in Outdoor Transclosure PROPANE IS NOT THE ANSWER! Solution: El JER. Because I want to used this function to sort my data so I transfer it to my data type (My data is an xsd type). Convertible 360-plus, patented, 5-point entry access enclosure with 2-point locking system and aluminum lay-in connectors for continuous current rating through 4000A. Daelim Electric offers utility pole transformers priced between $3,000 and $7,000, while the electric pole. MTU 10V0183 GS350 Gas Generator Set 350 kWe/60 Hz/Standby/208 - 600V Reference MTU 10V0183 GS350 (300 kWe) for Prime Rating Technical Data System ratingsS&C’s “live-front” PMH Pad-Mounted Gear features directly accessible components which are readily visible during operation of the gear. A loud buzzing coming from the AC panel board. From there I have twelve conduits going into two new main services, six conduits to one and six to the other. Although this area isn’t accessible from inside the school, it’s directly adjacent to the boiler room and there’s a massive. Broken Delta configuration: Three number of potential transformers are connected in delta connection and the one end of the delta connection will be in open condition. T. CONTACTS dpandl. Underground residential distribution / URD. sas. How transclusion works. Nov-18 Replaces: Oct-17 Report an Outage: 877-468-8243 1-866-527-SAVE and indicate that you are interested in enhanced incentives. Map to this location. 0 RELATED STANDARDS 5. . 754/759the vertical mounting centers for rails in Transclosure® housings and other enclosures. Introduction . 316 Stainless Steel Enclosure Applications. Easy to install and safe kit with the 10amp fuse remaining captive on the load-side when opened. The current implementation of augmentation doesn't preserve the facts that are already true in the model that is being augmented. provide data concerning system parameters (voltage, current flow, power flow) for use in operating the utility system. Also known as dry boxes and desiccator cabinets, these cabinets prevent moisture-sensitive 3D printer filaments, such as nylon, ABS, and polycarbonate, from becoming brittle, discolored, or broken. enclosures overview Robust construction, made of high grade sheet steel protecting against mechanical impact Surface corrosion protection throughtransformer transclosure cabinets typical transclosure installation ferroresonance prevention floating wye - delta customer supplied outdoor above ground vault floating wye - delta vault layout (1500 kva max) grounding for grounded wye - grounded wye bank with dead top large two transformer vault 5000 kva max vault secondary busIm a 2nd year electrical apprentice so it would be way easier to finish out these next two years and transfer rather then restarting. Join. mkBelow fails to generate brecOn for the following inductive predicate. . For this problem, in addition to calculating A2, A3 and A4, find the transitive closure matrix A+A2+A3+A4, and verify the result using the transclosure predicate of prolog program posted above. It makesMost of Yosemite National Park will shut down starting late Friday in anticipation of a massive snowmelt that is threatening to flood the surrounding region in California, the park announced. Limit values for humidity and air quality, e. Therefore, trash enclosures are always a custom build. To transclude any source page (within. 8ec33928b154d90a. docx from SYSM 6306 at University of Texas, Dallas. This blog post is mostly a write-up of my talk. Hi everybody! I have a 2002 Saturn SL2 with automatic transmission. In the Northeast, these are generally referred to as a Transclosure. html was released for the Windows 10 Operating System on 03/14/2009 inside MATLAB R2009a. Data-capture tech plus expert desk adjusters and field service. Go to: [ bottom of page] [ top of archives] [ this month] From: <pkg-fallout_at_FreeBSD. Transclusion means the inclusion of the content of one document within another document by reference. SAS Optimization 8. The final exam is on December 15th at noon. Conductor: Copper. These cabinets can be built with or without utility metering provisions. True. Whether they’re completelyoutfitted as a sectionalizing cabinet or housing switchgear, fused-gear, transformers, metering equipment,pumps or other equipment, they stand ready to protect and secure your valuable infrastructure. proc optmodel; set<str,str> LINKS; read data LinkSetIn into LINKS=[from to]; set<str,str>. " name. I’m from South Jersey. This course also describes the general. More common is critical loads being wired with three single phase transformers in a. If there is a path from node i to node j in G, then there is an edge between node i and node j in H. less-flammable liquid** InstallationTrinetics multi-connection secondary termination enclosures provide safe, convenient, and aesthetically pleasing connection points for multiple services suitable for up to 600V. When you call let tc = transClosure matrix, tc is just an alias to matrix which has been changed. . You're correct. Open delta transformers are rare and are typically only used for small loads where cost is important. Client Authentication Using an Authinfo File. It contains details about your loan term, monthly. In order to design a good ventilation of switchgear and transformer rooms, the air in the room must meet various requirements. Each half is defined by the voltage of the system. Transclosures: Custom Design & Fabrication. How transclusion works[edit]H = transclosure(G) 는 그래프 G의 전이적 폐포를 새 그래프 H로 반환합니다. a variation graph inducer. . Cleveland Utilities, TN. Try to check the conversion from xsds trees to matrices; it could be incorrect. The rest were gifted to me or found in the wild on abandoned lines here in the southwest. The nodes in. Our electrician will find and fix it, for you. Since all of the live contact points are enclosed in a grounded metal box, this. 16 (A) of NEC 2017. These can be attached to underground single or three phase lines. , A. In Wikipedia transclusion, the MediaWiki software will refer to the content of one page, the template, for inclusion into the content of any other page, the target page. To identify the chains, you can use PROC SQL to identify the links in that are not in . Let A be the symmetric matrix, and the determinant is denoted as “det A” or |A|. . Similar to the way any page name can become a link by placing its name in double. The callers and descendants of the function are liste d and the position of constructs not executed are given. 9 in build. The nodes in H are the same as those in G, but H has additional edges. 8, 25KV PRIMARY DISTRIBUTION Figure 3 - Transformer Pad and Transclosure Cabinet Detail 5. Arc flash hazard warning label as required by 110. iter (fun name -> Printf. Deferral Cabinet, Single Phase, Fiberglass, Munsell Green, 34"W x 25"D x 30"H. The program calculates transitive closure of a relation represented as an adjacency matrix. For calculating transitive closure it uses Warshall's algorithm. The electrical system consists of a new 4000A, 208/120V, 3-phase, 4-wire service from the local utility company’s pad mounted transclosure cabinet and transformer. After crews find the faulted section, they can reconfigure the loop. True. . A padmount transformer is a ground-mounted utility distribution transformer, which usually is housed in a locked metal cabinet, situated on a small concrete pad. com. Keeping all production processes in-house gives us control over the quality of materials, the workmanship and the timeline. Instead, we compute them using the dynamical programming approach similar to the Bellman-Ford algorithm for Figure 4-1: Transclosure and davit pole installation in median Figure 4-2: Transclosure installation improved with community-oriented art Figure 4-3: Milwaukee Harp Luminaire Lighting The City of Milwaukee owns and operates a unique electrical system that is divided into roughly two equal halves. • 17 days ago. 3 User's Guide: Mathematical Programming documentation. This paper presents how transitive closures and their instantiations for all possible types of db interesting functions and function products are computed by the MatBase Datalog¬ subsystem. sas. D. Use external vibration dampeners along with flexible connections and mounting methods that prevent. Aug 23, 2012. Compared to a grounded-wye arrangement the open-delta PT only requires two. SAS/OR® 15. Last week, Denis Firsov and I had a look at Curry, and Thursday, I gave an introductory talk about Curry in the Theory Lunch. Page 1 of 1 1500A 3-phase 600V Secondary Termination Enclosure By Trinetics Catalog ID: TWMMD-15C14-FTB-N Dual-access enclosure with 2-point locking system and. -Bbuild -D CMAKE_BUILD_TYPE=Debug && cmake --build build -- -j 15 -- CMAKE_BUILD_TYPE: Debug -- Configuring done. . Given the transitive closure of , you can. 4. . Figure 1. Can be subsurface. Schneider Electric USA. From Junction Boxes and Wire Ways to made to order metal fabrications. Create flashcards for FREE and quiz yourself with an interactive flipper. At Systems Control, we design, manufacture and test our turnkey equipment enclosures all under one roof. . It is clear that Tavg does not satisfy associativity; this rules out Tavg. The car shifts fine and is quiet in park, reverse and drive. They are rated up to 600V and are available from 800A-4000A. 5 MVA. ___________________________________ b. Moreover, it is proved that the correspond- ing algorithms are linear, solid, complete, and optimal. The function IndPredBelow. Skew Symmetric Matrix. Hubbell Shelters can be used in a myriad of pad-mounted equipment applications. 동일한 두 노드 사이에 다중 간선이 있는 다중 그래프에서는 출력. There is not a roof on this type of structure. H = transclosure(G) は、グラフ G の推移閉包を新規グラフ H として返します。 H のノードは G と同じですが、H には追加のエッジがあります。G にノード i からノード j への経路がある場合、H にはノード i とノード j を結ぶエッジがあります。 同じ 2 つのノード間に複数のエッジがある多重グラフで. If there is a path from node i to node j in G, then there is an edge between node i and node j in H. All seams shall be welded and ground smooth to present an attractive appearance. Transclusion means the inclusion of the content of one document within another document by reference. When you top out $40/hr is about $80k in base pay. If you qualify for the Income Eligible Program, you can find the agency serving your area by clicking here. what is the purpose of the concentric neutral on a single phase primary URD cable. Utility cabinets as a species may be indoor or outdoor, large, fridge size housings, or small, portable junction boxes. H = transclosure(G) returns the transitive closure of graph G as a new graph, H. The nodes in H are the same as those in G, but H has additional edges. Issue: Is it common for a breaker to make a buzzing noise? It is buzzing under certain loads. Design criteria for room ventilation. 2 M3907 Three Phase Distribution Padmount Transformers 300-2500kVA 1. Hinged screw cover. Command terminated by signal 4. . I am having the following issue: cmake -H. Loud or intrusive electrical buzzing sounds. The The T9 Series is our most technologically advanced series of cylindrical connectors available. View Products. The nodes in H are the same as those in G, but H has additional edges. sas. For unrebated residential doors. Insulation Piercing Connectors and Copper Bail Medium Voltage Overhead. Combo Disconnect Cabinets. I’ve retired almost half of these over my 17 years in the trade. 32 Unit Testing Framework § Write, run, and analyze tests for your MATLAB programs – Define how each test checks values and responds to failures – Setup and restore system beforeThis Thread Is a Thread where you can post what ever you want from **** posting to crazy stuff . *get one of the many practice books, like Surveying Porblems. NE342000WD2-Model. When you go to neutral, it is. Finally, they may check for any loose wires or frayed insulation near the circuit breaker box and repair them if necessary. Applications: Used where higher-amperage power is needed in conjunction with a disconnect. Cleveland, Tennessee 37311-3662. Suppose you want to answer the question of whether you can get from node to node in the original graph . Including other applications, power transfer units are also used for security. The output data set Cycles contains any circular dependencies, and the data set TransClosure contains the transitive closure . C. Electrical definition: . sas. Buy online today!% This function performs Transitive Closure on the input path matrix 'm', % which is a directed acyclic graph (DAG), % using simple matrix multiplication method. Company wide:Document Description: Asymptotic Complexity - PPT, CS10001: Programming and Data Structures, Engg , Sem for 2023 is part of for preparation. What is a Transclosure? Within our Electric Network we have several transformers within transclosures. A classic underground residential distribution circuit is an underground circuit in a loop arrangement fed at each end from an overhead circuit (see Figure 1). En diseos cuya medicin sea en el lado primario se requerir un cubculo adicional en donde se instalar el equipo de medicin. The table above showcases the price range offered by different suppliers. PDF EPUB Feedback. The circuit breaker is humming or clicking. Income Eligible Program. What devices accommodate low break and elbows? Parking stand. A classic underground residential distribution circuit is an underground circuit in a loop arrangement fed at each end from an overhead circuit (see Figure 1). Whether they’re completelyoutfitted as a sectionalizing cabinet or housing switchgear, fused-gear, transformers, metering equipment,pumps or other equipment, they stand ready to protect and secure your valuable infrastructure. Join. SAS® OPTGRAPH Procedure: Graph Algorithms and Network Analysis documentation. Para capacidades mayores consultar con la C. With OT you can make $145k+. Bolted panel construction, transclosure style, and switchgear cubicle style enclosures will not be allowed and will be rejected. 1), so wfmash was installed automatically as a dependency of pggb. ppt [Compatibility Mode] Author: CLin Created Date: 10/17/2010 7:03:49 PMWhat is a good study guide for the PS exam? *Go your state board's website and take a look at the exam guide. A. sas. The loop arrangement allows utilities to restore customers more quickly. These distribution transformers are. The case centered on allegations that the young girl would not have been burned if the transclosure had been properly safeguarded. 866, so the max output (KVA) of a T/F will be 86. comThis is shit. Intended purpose is to provide protection against contact with enclosed equipment where rain, sleet, or ice is possible. I tried to install wfmash independently via conda afterward but there was no impact. Concentric wires. Catalog ID: P1342530MDL. Do a search for JL on indeed, and you’ll find plenty of utility openings nationwide. TheThe T9 Series is our most technologically advanced series of cylindrical connectors available. Description. Substation also dispatches electric power from generating stations to the consumption center. Trembling, Grinding, or Jerking. 0 RELATED STANDARDS 5. the vertical mounting centers for rails in Transclosure® housings and other enclosures. What does transclude mean? Information and translations of transclude in the most comprehensive dictionary definitions resource on the web. Lightweight Aluminum Interlocked Armor. 7% of the power of a conventional transformer (not two thirds, 66. 000006Transclosure or plug in building Fiber Optic across yard Breaker Control Cabinet Hard Fiber Brick wires direct to Breaker Control Cabinet Gateway Panel Gateway for SCADA Function, Fault Record Retrieval, Automation Relay Panel as Appropriate Test Panel IEC 61850-9-2 Brick-Based Optional DesignSubstation transforms voltage from high to low or from low to high as necessary. Annual Household Income. printf "Definition %s := %s. the. Like Haskell, Curry has support for literate programming. 2 and standards to governthe conduct of Eversource employees, consultants and representatives in connection with Eversource’s ownership interest in, and (a)Download scientific diagram | The program TransClosure from publication: Reasoning about Graph Programs | GP 2 is a non-deterministic programming language for computing by graph transformation. Arc flash hazard warning label as required by 110. True. 12. A blank protects a URD system from over voltages. comtransclosure. If you want some advice pm me. Underground residential distribution / URD. Create a seamless, low-touch experience for auto claims and low-complexity losses. SYSM 6306, Modeling and Simulation, Classwork 07 1. A ce titre, une premiere. comThe directed graph G can be represented by the following links data set LinkSetIn: . Optional Features. The program calculates transitive closure of a relation represented as an adjacency matrix. EP 2 engineers will work with. Repair, Maintenance and prefabricate all your pipe systems needs to save time and money. It will include material covered on the second exam, as well as topics covered since. Once you have cycles the transitive closure should convert them to reflexive symmetric subsets. 5 Computing transitive closure of a weighted graph Computing maximal transitive affinity hij by its original definition Eq. Browse 44,621 authentic electrical transmission stock photos, high-res images, and pictures, or explore additional electrical transmission diagram or electrical transmission lines stock images to find the right photo at the right size and resolution for your project. Pad mounted transformers blank. In general, transitivity is regulated by the weakest link on the path. Operating status is easily confirmed through visible gaps and grounds. Primary and secondary voltage 3. H = transclosure(G) Description. sas. . Network capability – when this hardware capability is. Cory Tamagi, the former President and CEO of Circa, stated, "On behalf of the former directors and officers of Circa, I am happy to report we have completed the amalgamation with overwhelming. T or F. 1 M3801 Material Standard for Precast Pads and Covers 5. 6 KVA. You would do two apprenticeships. . transClosure, a 1, a 2 – the names of the desired table (distinct in the db) and its two columns for storing the result; nulls? – 0, if no null values are desired in c 2 , orDefinition of transclude in the Definitions. gov). The way they were explained to me is that it is an overhead transformer mounted to a short pole and inside a enclosure to protect it. ) is a manufacturing company specializes in low, medium and high voltage electrical equipment. The open-delta PT is commonly used in medium-voltage (MV) generator paralleling switchgear among other applications. . comand the SCADA equipment for the Transclosure Box (Contractor to coordinate transfer of back plate of transclosure box to Norfolk Utilities (Chris Saunders 757-441-5774 EXT 237, chris. Open. The utility company over-enrolled customers under a "hardship" designation via a pilot program approved by state regulators. 7. Sounds electrical to me, definitely not a grinding noise. The Closing Disclosure is an important part of the homebuying process — it breaks down all costs associated with the loan in an easy-to-read format. the conduction of soluble material (such as metabolic products) from one part of a plant to another. comTRANSCLOSURE CABINET (WHEN REQ'D) TO CUSTOMER SWITCHGEAR INCOMING 4, 13.