BHEL Requirement of Project Engineers (BE/BTech)/Supervisors (Diploma Holders)

 Bharat Heavy Electricals Limited (BHEL) owned and founded by the Government of India, is an engineering and manufacturing company based in New Delhi, India. Established in 1964, BHEL is India's largest power generation equipment manufacturer. 

BHEL was established in 1964 ushering in the indigenous Heavy Electrical Equipment industry in India. Heavy Electricals (India) Limited was merged with BHEL in 1974. In 1991, BHEL was converted into a public limited company. Over time, it developed the capability to produce a variety of electrical, electronic and mechanical equipments for all sectors, including transmission, transportation, oil and gas and other allied industries.

However, the bulk of the revenue of the company is derived from sale of equipment for power generation such as turbines, boilers, etc. As of 2017, BHEL supplied equipment contributed to about 55% of the total installed power generation capacity of India. The company has also supplied thousands of Electric Locomotives to Indian Railway, as well as defence equipment such as the Super Rapid Gun Mount (SRGM) naval guns and Defence Simulators to the Indian Armed Forces. 

BHEL Requirement of Project Engineers (BE/BTech)/Supervisors (Diploma Holders) 

Name of Post : Project Engineers ( 40  Posts)

Qualifications: BE/BTech in the field of Electrical / Electronics /Telecommunication / Instrumentation / Civil/Mechanical with at least 60% marks (50% for SC/ST) in aggregate of all the years/semesters from recognized University/Institution.

REMUNERATION:Rs. 56,580/-per month

 Name of Post: Supervisors(34 Posts)

Qualifications: Diploma in the field of Electrical / Electronics /Telecommunication/ Instrumentation /Mechanical / Civil with at least 60% marks (50% for SC/ST) in aggregate of all the years/semesters from recognized University/Institution.

 REMUNERATION :Rs. 28,180/-per month

IMPORTANT DATES: 

Start of Online Application Submission:02.07.2018

Close of Online Application Submission:21.07.2018

Last date of receipt of hard copy of online submitted Applications:26.07.2018

Last Date of receipt of Hard copies of online submitted Applications from far flungareas31.07.2018  

More details and official notification , Please click link below:

http://career.bheledn.co.in/FTARecruitment/fta_adv.pdf

Mineral Exploration Corporation Limited ( MECL ) RECRUITMENT 2018

 Mineral Exploration Corporation Limited ( MECL ) was established as an autonomous Public Sector Company in October 1972, under the administrative control of Ministry of Mines, Government of India for systematic exploration of minerals, to bridge the gap between the initial discovery of a prospect and its eventual exploitation. 

MECL has the Mission "to provide high quality, cost effective and time bound geo-scientific services for exploration and exploitation of minerals".

MECL has completed over 1430 projects/reports and established 162734 Million Tonnes of ores/ mineral reserves of minerals like Coal, Lignite, Bauxite, Copper, Gold, Lead-Zinc, Iron Ore, Limestone, Manganese, Magnesite, Chromite, Fluorspar and several other Industrial Minerals since inception (As on 30st June 2017). It has recently diversified in to mining and beneficiation of minerals, Production well drilling for CBM and sampling & analysis of coal stocks....

Mineral Exploration Corporation Limited 

             ( MECL ) RECRUITMENT 

Name of Posts

Exploration Geologist 

Geophysicists

Drilling Engineers

Surveyors 

Analytical chemists  

Instrumentation Engineers  

Mechanical Engineers

IT Engineers 

More details and official notification,Please visit website 

Here :http://www.mecl.gov.in/Careers.aspx

Top 10 Software Companies List in USA and various Job Openings all over the world

BMC Software, Inc. is an American technology company. BMC produces software and services that assist businesses in moving to digital operations. Its software serves functions including IT service management, data center automation, performance management, virtualization life cycle management and cloud computing management.The company identifies its strategy as "digital enterprise management", and focuses on platforms including mainframe computers, mobile devices, and cloud computing. BMC previously offered primarily on-premises services, but as of 2016 its business model increasingly incorporates Software-as-a-Service ("SaaS").In 2013, BMC transitioned from a public to a private company. Investors included Bain Capital, Golden Gate Capital, Insight Venture Partners, GIC Private Limited's GIC Special Investments Pte Ltd, and Elliott Management Corporation.

 If you interest to work with this company, Please log on to official web site http://www.bmc.com/careers/careers.html for various openings all over the world

The Hewlett-Packard Company (commonly referred to as HP) or shortened to Hewlett-Packard was an American multinational information technology company headquartered in Palo Alto, California. It developed and provided a wide variety of hardware components as well as software and related services to consumers, small- and medium-sized businesses (SMBs) and large enterprises, including customers in the government, health and education sectors.

If you interest to work with this company, Please log on to official web site https://www.hpe.com/in/en/about/jobs.html for various openings all over the world

  

Intuit Inc. is a business and financial software company that develops and sells financial, accounting, and tax preparation software and related services for small businesses, accountants, and individuals. The company is headquartered in Mountain View, California. More than 95% of its revenues and earnings come from its activities within the United States.

If you interest to work with this company, Please log on to official web site https://careers.intuit.com/ for various openings all over the world

Fiserv, Inc., is a US provider of financial services technology. The company's clients include banks, thrifts, credit unions, securities broker dealers, leasing and finance companies, and retailers.In October 2015, American Banker and BAI ranked the company third by revenue among technology providers to U.S. banks.Fiserv reported total revenue of $5.51 billion in 2016.

If you interest to work with this company, Please log on to official web site https://www.careers.fiserv.com/ for various openings all over the world

Adobe Systems Incorporated commonly known as Adobe, is an American multinational computer software company. The company is headquartered in San Jose, California, United States. Adobe has historically focused upon the creation of multimedia and creativity software products, with a more recent foray towards rich Internet application software development. It is best known for Photoshop, an image editing software, Acrobat Reader, the Portable Document Format (PDF), and Adobe Creative Suite, as well as its successor, Adobe Creative Cloud.

If you interest to work with this company, Please log on to official web site https://www.adobe.com/careers.html for various openings all over the world

CA Technologies, formerly known as Computer Associates International, Inc. and CA, Inc., is an American multinational publicly held corporation headquartered in New York City. It ranks as one of the largest independent software corporations in the world. The company creates systems software (and previously applications software) that runs in mainframe, distributed computing, virtual machine and cloud computing environments.

If you interest to work with this company, Please log on to official web site https://searchjobs.ca.com/ for various openings all over the world.

 VMware, Inc. is a subsidiary of Dell Technologies that provides cloud computing and platform virtualization software and services. It was the first commercially successful company to virtualize the x86 architecture.VMware's desktop software runs on Microsoft Windows, Linux, and macOS, while its enterprise software hypervisor for servers, VMware ESXi, is a bare-metal hypervisor that runs directly on server hardware without requiring an additional underlying operating system.

 If you interest to work with this company, Please log on to official web site https://careers.vmware.com/ for various openings all over the world.

Symantec Corporation(commonly known as Symantec) is an American software company headquartered in Mountain View, California, United States. The company provides cybersecurity software and services. Symantec is a Fortune 500 company and a member of the S&P 500 stock-market index. The company also has development centers in Pune, Chennai and Bengaluru (India).On October 9, 2014, Symantec declared it would split into two independent publicly traded companies by the end of 2015. One company would focus on security, the other on information management. On January 29, 2016, Symantec sold its information-management subsidiary, named Veritas Technologies (which Symantec had acquired in 2004) to The Carlyle Group.

If you interest to work with this company, Please log on to official web site https://www.symantec.com/about/careers for various openings all over the world.

 

 

Oracle Corporation is an American multinational computer technology corporation, headquartered in Redwood Shores, California. The company specializes primarily in developing and marketing database software and technology, cloud engineered systems and enterprise software products — particularly its own brands of database management systems. In 2015, Oracle was the second-largest software maker by revenue, after Microsoft.The company also develops and builds tools for database development and systems of middle-tier software, enterprise resource planning (ERP) software, customer relationship management (CRM) software and supply chain management (SCM) software.

If you interest to work with this company, Please log on to official web site https://www.oracle.com/in/corporate/careers/index.html for various openings all over the world.

Microsoft Corporation abbreviated as MS) is an American multinational technology company with headquarters in Redmond, Washington. It develops, manufactures, licenses, supports and sells computer software, consumer electronics, personal computers, and services. Its best known software products are the Microsoft Windows line of operating systems, the Microsoft Office suite, and the Internet Explorer and Edge web browsers. Its flagship hardware products are the Xbox video game consoles and the Microsoft Surface lineup of touchscreen personal computers. As of 2016, it is the world's largest software maker by revenue, and one of the world's most valuable companies.The word "Microsoft" is a portmanteau of "microcomputer" and "software".

If you interest to work with this company, Please log on to official web site https://careers.microsoft.com/us/en for various openings all over the world.

Rashtriya Chemicals and Fertilizers Limited Recruitment Officer, Engineer Job Vacancies

Rashtriya Chemicals & Fertilizers Ltd. (RCF) is a Public Sector Undertaking (PSU) in India under the Ministry of Chemicals and Fertilizers of the Government of India, based in Mumbai. RCF is one of the leading producers of fertilizers in India.

RCF Ltd is a leading profit making company in the business of manufacturing andmarketing of Fertilizers and Industrial Chemicals having sales turnover aroundRs.7300 crores. The Manufacturing       units are in Maharashtra (at Thal-Dist. Raigad and at Trombay-Chembur, Mumbai) with National Level Marketing Network.Company provides excellent career growth opportunities. 

Name of Post & Qualifications

        Officer (2 posts)

    Regular Full time B.E. /B. Tech./B.Sc Engineering (Engineering Graduate) preferably in chemical discipline from university recognized by University Grant Commission (UGC)/Government institution. 

Certificate on full time course of advance Diploma in Industrial Safety from Govt. approved institute is essential Minimum Percentage: 55 % marks (aggregate) in last4 semesters/ last 2 years of Engineering Graduation.Experience:-2 years’ experience in the field of Safety management in Fertilizer industry/ Chemical/ Petrochemical industry as on 01.06.2018

Salary: Rs. 40,000 - Rs. 1,40,000/- Per Month

Engineer(2 posts)

Regular Full time B.E. /B. Tech./B.Sc Engineering (Engineering Graduate) preferably in chemical discipline from university recognized by University Grant Commission (UGC)/Governmentinstitution with PG degree or diploma in Environmental Engineering from university recognized by University Grant Commission (UGC)/Government institution.Minimum Percentage: 55 % marks (aggregate) in last4 semesters / last 2 years of Engineering Graduation.

           Salary : Rs. 40,000 - Rs. 1,40,000/- Per Month

         Last Date: 17/07/2018

More details and official notification ,Please click link below:

http://www.rcfltd.com/webdocs/853/2018/06/Detailed_Adv.pdf

Indian Oil Corporation Limited (IOCL) Recruitment for Junior Operators

       Indian Oil Corporation Limited (IOCL)  commonly known as IndianOil is an Indian state owned oil and gas company with registered office at Mumbai and primarily headquartered in New Delhi. It is the largest commercial enterprise in the country, with a net profit of INR 19,106 crore (USD 2,848 million) for the financial year 2016–17. It is ranked 1st in Fortune India 500 list for year 2016 and 168th in Fortune's ‘Global 500’ list of world's largest companies in the year 2017.

 As of 31 March 2017 IndianOil's employee strength is 33,135, out of which 16,545 are in the officer cadre.IndianOil's business interests overlap the entire hydrocarbon value-chain, including refining, pipeline transportation, marketing of petroleum products, exploration and production of crude oil, natural gas and petrochemicals.IndianOil has also ventured into alternative energy and globalization of downstream operations. It has subsidiaries in Sri Lanka (Lanka IOC)^, Mauritius (IndianOil (Mauritius) Ltd) and the Middle East (IOC Middle East FZE)^.

IndianOil is scouting for new business opportunities in the energy markets across Asia and Africa. It has also formed about 20 joint ventures with reputed business partners from India and abroad to pursue diverse business interests. Indian Oil has its R&D Centre located in Faridabad, Delhi NCR.In May, 2018, IOC become India's most profitable state-owned company for the second consecutive year, with a record profit of ₹21,346 crore in 2017-18, followed by Oil and Natural Gas Corporation, whose profit stood at ₹19,945 crore. 

^{(Information courtesy wikipedia)}

^{Indian Oil Corporation Limited (IOCL) Recruitment} 

^{Name of Post & Qualification}

^{Junior Operator (50 posts)} 

^{Higher Secondary (Class XII) With minimum Of 45% marks in aggregate for General & OBC candidates and 40% for  SC/ST candidates with valid Heavy Vehicle Driving License.}

^{Salary : Rs. 10,500 - Rs. 24,500/- Per Month}

^{Last Date:  07/07/2018}

^{More details and official notification,Please click link below:}

^{https://www.iocl.com/download/IOCL_appointment_AD_08062018.pdf}

South East Central Railway (SECR) zone Recruitment for Station Master, Guard, Porter and Various posts.

 The South East Central Railway (abbreviated SECR and दपूमरे) is one of the seventeen railway zones in India. It is headquartered at Bilaspur and comprises the Bilaspur and Nagpur divisions (formerly part of the South Eastern Railway) and the new Raipur division.

This Zone was formerly part of the South Eastern Railway. It was inaugurated on 20 September 1998 and dedicated to the nation on 1 April 2003.Bilaspur Railway Station is a regional hub for the system. It is the busiest junction in Chhattisgarh and the fourth-busiest in Central India. 

The zone's major stations are Gondia (G), Bhandara Road (BRD), Dongargarh (DGG), Rajnandgaon (RJN), DURG (DURG), Bhilai (BIA), Raipur (R), Bhatapara (BYT), Tilda (TLD), Bilaspur (BSP), Gevra Road (GAD), Champa (CPH), Raigarh (RIG), and Anuppur (APR), all of which lie on the Mumbai-Howrah and Mumbai-Katni-Bilaspur main lines. Bilaspur, Gondia, Durg and Raipur are the zone's major junctions. By 2009, SECR had added a third rail line between Durg and Bilaspur.(Information courtesy wikipedia)

South East Central Railway (SECR) zone Recruitment 

Name of Post

Station Master: 08 Posts
Guard: 10 Posts
Controller: 1 Post
Porter: 05 Posts

Last Date: 12/07/2018

More details and official notification, please click link below:

http://www.secr.indianrailways.gov.in/uploads/files/1528883996989-RE-ENGAGEMENT%20OF%20OPTG.pdf

Power System Operation Corporation Ltd.(POSOCO) Recruitment of Executive Trainees for Electrical,Computer Science

Power System Operation Corporation Limited (POSOCO) was a wholly owned subsidiary of Power Grid Corporation of India Limited (PGCIL) till 2 January 2017. It was formed in March 2010 to handle the power management functions of PGCIL. It is responsible to ensure the integrated operation of the Grid in a reliable,efficient and secure manner. It consists of 5 Regional Load Despatch Centres and a National Load Despatch Centre (NLDC). The subsidiary was eventually made a separate company, leaving the parent firm with only the task of setting up transmission links. The load despatch functions, earlier handled by PGCIL, will now come up to POSOCO. Now POSOCO is fully govt. Company because on 3 January 2017 it was separated from powergrid.

Central Government through Ministry of Power in exercise of the power conferred by sub-section (3) of Sect 26 and sub-section (2) of Section 27 of the Electricity Act, 2003, by notification dt. 27 September 2010 in the Gazette of India notified that the Power System Operation Corporation Ltd (POSOCO), a wholly owned subsidiary of the Power Grid Corporation of India Limited (a Government Company) shall operate National Load Despatch Centre and the five Regional Load Despatch Centers, with effect from 1 October 2010.

The subsidiary was set up on the recommendations of a government committee headed by G.B. Pradhan, additional secretary in the Union ministry of power. To make load despatch centres financially self-reliant and autonomous, the committee recommended independent and sustainable revenue streams. The move to separate the two functions is in keeping with the provisions of the Electricity Act, 2003, which seeks to separate commercial interests from load management functions. The Pradhan committee had recommended setting up a separate representative board structure overseeing the functions of the five regional load despatch centres (RLDCs) run by PGCIL—the northern, eastern, north-eastern, western and southern regions at that time.(Information courtesy wikipedia)

Power System Operation Corporation Ltd.(POSOCO) Recruitment of Executive Trainees  

Name of Posts

ET(Electrical) 45 posts

ET(Computer Science) 19 post 

Qualifications:

ELIGIBILITY CRITERIA: Valid Score in the GATE 2018. Candidate should have valid score in the corresponding paper of GATE 2018 as shown in the following table and Qualified in the same. The qualifying marks are as declared by GATE 2018 Organizing Body. For details on Qualifying marks for all categories, please visit GATE Website. 2. Essential Qualification : ET (Electrical) & ET (Computer Science)

i. Course: Full Time B.E./ B.Tech/ B.Sc (Engg.) from recognized University/ Institute; 

ii. Discipline: Electrical: Electrical/ Electrical (Power)/ Electrical and Electronics/ Power Systems Engineering/ Power Engineering (Electrical) ; Computer Science: Computer Science/ Computer Engg./ Information Technology

 Last Date : 27/06/2018

 More informations and official notification,Please click link below:

https://posoco.in/IA/rectdoc/CC_ET%28Electrical%29_ET%28CS%29_Detailed_Advert.pdf

PUNJAB AGRICULTURAL UNIVERSITY, LUDHIANA Recruitment for Assistant Professor, Assistant Research Engineer,Dean and various Posts

 The Punjab Agricultural University (PAU) in Ludhiana, Punjab is a state agricultural university in India.It was established in 1962 and is the nation's third-oldest agricultural university, after Govind Ballabh Pant University of Agriculture & Technology, Pantnagar and Orissa University of Agriculture and Technology, Bhubaneshwar. 

It was formally inaugurated by the then Prime Minister of India, Pandit Jawaharlal Nehru, on July 8, 1963. It has an international reputation for excellence in agriculture. PAU pioneered the Green Revolution in India in the 1960s and is considered as one of the best agricultural universities in India.It was bifurcated in 2005 with the formation of Guru Angad Dev Veterinary and Animal Sciences University (GADVASU).

The Punjab Agricultural University was established in 1962 to serve the state of erstwhile. In 2006, the College of Veterinary Science was upgraded to become Guru Angad Dev Veterinary and Animal Science University (GADVASU) at Ludhiana.The PAU has played a key role in increasing food grain production in the Punjab State several folds share its reputation and ushering in an era of Green Revolution in India. It has made notable contributions in increasing livestock and poultry production. In recognition of its outstanding achievements in agricultural research, education and extension, it was adjudged the Best Agricultural University in India in 1995.

The Punjab Agricultural University now has four constituent colleges, viz. College of Agriculture, College of Agricultural Engineering, College of Home science and College of Basic Sciences & Humanities.At present the university, through 28 departments in the four constituent colleges, offers 31 Master's and 30 Ph.D. programmes. The course curricula are constantly revised and restructured to keep pace with the latest developments in agriculture and allied fields.

(Information courtesy wikipedia)

PUNJAB AGRICULTURAL UNIVERSITY, LUDHIANA Recruitment for the following Posts 

 Name of Post & Qualification

Assistant Professor(5 posts) B.Tech/B.E, M.E/M.Tech, B.Sc

Assistant Research Engineer( 1 post) B.Tech/B.E, M.E/M.Tech

Legal Assistant (1 post) LLB

Media Assistant (1 post) Any Post Graduate with diploma

Deputy Director (1 post)B.Sc, M.Phil/Ph.D

Dean (2posts) Any Graduate, Any Post Graduate, M.Phil/Ph.D

Assistant Entomologist (1 post)B.Sc, M.Sc

Associate Professor (1 post)  B.Sc, B.Tech/B.E, M.Phil/Ph.D

Plant Manager (1 post) B.Tech/B.E, M.E/M.Tech

Production Manager (1 post)  B.Sc, M.Sc

 

Last Date: 12/07/2018 

For more details  and official notification ,Please open official website link below:

http://web.pau.edu/index.php?_act=manageAllVacancy&DO=viewDataVacancy&intVacancyID=2512&intSubID=147

Mumbai Port Trust (MbPT), invites applications for recruitment in various Jobs

Mumbai Port Trust is a port which lies midway on the West coast of India, on the natural deep-water harbour of Mumbai, Maharashtra. The harbour spread over 400 square kilometres (150 sq mi) is protected by the mainland of Konkan to its east and north and by the island city of Mumbai to its west.The harbour opens to the south to the Arabian Sea.

The port is administered by the Mumbai Port Trust (MbPT), an autonomous corporation wholly owned by the Government of India. The port is primarily used for bulk cargo, while most container traffic is directed to Nhava Sheva port across the harbour.

Mumbai Port has three enclosed wet docks. Prince's Dock was commissioned in 1880. As of 2008, it has 8 berths with a minimum draft of 6.4 metres (21 ft). Victoria Dock, commissioned in 1891, had 14 berths as of 2008 with a minimum draft of 6.7 metres (22 ft). Indira Dock, commissioned in 1914, had 21 berths, with a minimum draft of 7.0 metres (23.0 ft). Prince's Dock and Victoria Dock are semi-tidal docks, with vessels docking and departing at high tide. Indira Dock has a lock, enabling vessels to enter or depart at any time.

^{(Information courtesy wikipedia)}

Mumbai Port Trust (MbPT), invites applications for recruitment in various Class I(22 posts) and Class II (2 posts)by direct recruitment. 

Name of Posts with Qualification

Assistant Executive Engineers  (7 posts) , B.Tech/BE

Assistant Executive Engineer (Telecom/ Electronics)

Assistant Executive Engineer (Civil) 

^{Assistant Executive Engineer (Mechanical /Electrical)}

^{Assistant Security Officer (2 posts) B.Sc, B.Com, LLB}

 ^{Accounts Officer (4 posts) CA,ICWA}

Assistant Secretary(2 posts) any graduation

Assistant Traffic Manager (4 posts) any graduation

Assistant Estate Manager (3 posts) M.Arch, M.E/M.Tech, Any Post Graduates, PG Diploma 

Assistant Materials Manager (1 post) B.Tech/B.E

Law Officer ( 1 post) LLB
 

Last Date : 07-07-2018 

More details and official notification,Please click link below:

http://mumbaiport.gov.in/writereaddata/linkimages/8024169590.pdf

Engineers India Limited (EIL) Recruitment Engineer/Officer, Junior Accountant nd various Vacancy for B.Tech/B.E, B.Sc, B.Com, CS Holders

 Engineers India Limited (EIL) is a Navratna public-sector undertaking of the Government of India under the Ministry of Petroleum and Natural Gas. It was set up in 1965 to provide engineering and related technical services for petroleum refineries and other industrial projects.EIL has its head office at Bhikaji Cama Place, New Delhi. 


EIL also has:an R&D complex at Gurgaon,a branch office at Mumbai,regional offices at Kolkata, Chennai, Vadodara,inspection offices at all major equipment manufacturing locations in India.

overseas offices in London (England), Italy, China, Abu Dhabi and Malaysia.EIL has two wholly owned subsidiaries, EIL Asia Pacific Sdn Bhd in Malaysia, and Certification Engineers International Ltd, to undertake Independent Certification, and Third-Party Inspection (TPI) assignments.

Tata Projects Limited (TPL) and Engineers India Ltd (EIL) signed a Memorandum of Understanding (MoU) in July 2007 to incorporate a Joint-Venture (JV) Company which would undertake Engineering, Procurement and Construction (EPC) projects in India and abroad. The JV Company named TEIL Projects Limited was incorporated on 15 July 2008 in Delhi as a Public Limited Company (PLC).

EIL has secured Consultancy Services Contract from Bharat Petroleum Corporation Ltd (BPCL) for Integrated Refinery Expansion Project (IREP), Kochi at a fee of ₹ 720 crore on 6 July 2012. 
(Information courtesy wikipeida) 

Engineers India Limited (EIL)  Recruitment   for the following Posts 

Name of Posts and Qualifications

Engineer/Officer (59 posts), B.Tech/B.E, B.Sc
Engineer (Construction – Civil)
Engineer (Construction - Mechanical)
Engineer (Construction Electrical)
Engineer (Construction Instrumentation)
Engineer (Construction -Safety):
Engineer (Construction Welding/NDT
Engineer (SCM – Contracts & Purchase)

Deputy Manager (71 posts), B.Tech/B.E, B.Sc
Deputy Manager Construction – Civil)
Deputy Manager (Construction - Mechanical)
Deputy Manager (Construction Electrical)
Deputy Manager (Construction Instrumentation)
Deputy Manager (Construction -Safety):
Deputy Manager (Construction Welding/NDT
Deputy Manager (SCM – Contracts & Purchase)
 
Deputy General Manager ( 1 post) B.Com, CS

Last Date:  20-06-2018


 More details and Official notification, Please click link below:
http://recruitment.eil.co.in/hrdnew/others/ONLINE%20detailed%20advertisement%202018-09-02.pdf