Council of Engineers (Senior Professional Engineer), Engineering Institute of Thailand (Chairman of Industrial Engineering Committee),

Ergonomics Society of Thailand (Committee, Registrar), Faculty Senate of Silpakorn University (Committee, Secretary)

National Operations Research Network: OR-Net (Committee),

Industrial Engineering Network: IE-Network (Chairman), Thai VCML Conferrence (Committee)

Radio Amateur Society of Thailand-RAST, Voluntee Radio Association-VRA (E22ULT-Advance Class)

US. Amateur Radio (KE0HAS-Extra Class)

Industrial Engineering,  Ergonomics and Safety, Work Study, Industrial Plant Design, Engineering Economics, Production Management,ProductionPlanning, Quality Assurance, Simulation, Logistics and Supply Chain Management, MN management, Innovation Management, Marketing, Automatics control system and Robot, CAD/CAM/CIM, Smart manucturing, Smart Farm

2023-present Advisory of Industrial Engineering Committee, Engineering Institute of Thailand

2006-present Ergonomics Society of Thailand (Committee, Advisory)

2017-present Chairman of PhD. Program of Engineering Management Program

2015-Present  Editor of  Thai Industrial Engineering Journal (IENJ), E-Journals

2017-2022 Chairman of Industrial Engineering Committee, Engineering Institute of Thailand

                           Advisory of Industrial Engineering Committee, Council of Engineers of Thailand

2006-2015 Head of Industrial Engineering Department (and Asst.), Ergonomics Society of Thailand (Committee, Registra)

2012-2016   National Operations Research Network: OR-Net (Committee),

2012-2016   Industrial Engineering Network: IE-Network (Chairman), 

2013-2016   Thai VCML Conferrence (Committee)

 2006-2012    Faculty Senate of Silpakorn University  (Committee, Secretary)

2011             National Operations Research Conference (OR-Net2011) (Committee)

2010             National Industrial Engineering Conference 2010 (Committee)

2007-2011   Thai VCML Journal Editorial Board

2007-present   Consultant, Specialist for Management, Production, Energy , Logistics at The Institute for Small and Medium Enterprises Development (SMEs)

2004-2019    Industrial Technical Committee of Engineering Institute of Thailand(Committee, Chair 2017-2019)

2004-2005    Sub-committee of The Engineering Institute of Thailand (Task-force team for “Standard for Factory Regulated” development)

2007-2008    “IRPUS” Project Advisor for Engineering Student

2007-2008    Consultant, Management Specialist for Energy Conservation Project, Ministry of Energy

2005-2011    “Clean Technology” (CT, MTEC) Project Advisor for Engineering Student

2002-2011    Instructor in Public Training Courses: 5S, ISO9000, TQM, TPM, KAIZEN, Balanced Score Card, KPI, Management Skill, Team-Work, Risk Management, Strategic Planning, PPC, Ergonomics, Lean, SCADA. PLC, Inverter, SPC, Process Capability,  etc.

2002-2004    Consultant for productivity Improvement in the factories and ITB project

2003-2015    Chair, Committee, Consultant, Jesda Village

2003-2004    Visiting lecturer at KMUTT (Industrial Management, Engineering Economy)

2002-2008    Visiting lecturer at Srinakharinwirote University (Work Study, Industrial Plant Design)

2002-2004    Instructor, Consultant at Excellent Management Consultant Co., Ltd.

1997-2001    Production manager and QMR at Fuji Ace Co., Ltd. ("Ajinomoto" Group)

1993-1996    Assistant Production Control Manager, Project Engineer  at Wanavit Manufacturing Co., Ltd ("HATARI" FAN)

1990-1992    Electronics Supervisor at  Bangkok Glass Industry Co., Ltd.

1986-1989    Scholarship Student of DPST. Project

1991               Oversea Training (DCS control system), Hartmann & Braun, Germany

1990              “Process Instrumentation”, TPA.

A study and tests for the age range at risk to Locomotive syndrome disease by two-step test using new indices, Chanphen Anuratananon, Prachuab Klomjit, Sittichai Saelom, Thai Journal of Ergonomics, Volume 6, Issue 2, 2023, pp. 60-72

Failure Assessment of Aircraft Rivet Installation Using Fault Tree Analysis, Nattakorn Triratnavananon, Prachuab Klomjit, King Mongkut's Academic Journal of North Bangkok Volume 33, Issue 3, 2023, pp. ID. 233-024967

A Study Performance and Economic Optimization of A Combined Heating System of Air Source Heat Pump and Solar Hot Water, Sorsak Wiwatsaranrom, Prachuab Klomjit, Journal of Industrial Technology Ubon Ratchathani Rajabhat University Volume 13, Issue 2, 2023, pp. 55-68

The Relationship of Task Difficulty and Multitasking on Performance in Robot Arm Control,  Chalalai Wongwian, Alongkorn Chatmuangpak, Nathanapa Nok Dee, Prachuap Klomjit, Journal of Applied Research on Science and Technology Volume 22, Issue 1, 2023, pp. 40-49

Reducing the Failure Rate of Dishwashers by Analyzing the Service Life of Spare Parts using System Reliability Calculation, Jiranan Kanchanakulanuruk, Prachuab Klomjit, Academic Journal of Industrial Technology Volume 19, Issue 1, 2023, pp. 1-16

Operational risk analysis: case study of plastic bag manufacturer, Ratchadakorn Phu Hoi, Prachuab Klomjit, Journal of Engineering and Innovation Volume 15, Issue 4, 2022, pp. 120-128

Queuing System Analysis: A Case Study of Fast Fashion Business, Ratsadacorn Puhoi, Suchak Pornsing, Prasuwab Klumjit, Academic Journal of Industrial Technology, Volume 17, Issue 3, 2021, pp. 124-133

Reducing the Failure Rate of Dishwashers by Analyzing the Service Life of Spare Parts using System Reliability Calculation, Jiranan Kanchanakulanurak , Prachuab Klomjit, Industrial Technology Journal Volume 19, Issue 1, 2023, pp. 1-16

Operational risk analysis: case study of plastic bag manufacturer, Ratchadakorn Phuhoi , Prachuab Klomjit, Journal of Engineering and Innovation Volume 15, Issue 4, 2022, pp. 120-128

A study and tests for the age range at risk to locomotive syndrome disease by standing–up test: A case study of sample group in Bangkok metropolitan region Prachuab Klomjit , Chanpen Anuratananon , Alongkorn Chatmuangpak , Chalalai Wongwian

Queuing System Analysis: A Case Study of Fast Fashion Business, Ratchadakorn Poohoi , Choosak Pornsing , Prachuab Klomjit, Industrial Technology Journal Volume 17, Issue 3, 2021, pp. 124-133

Tourist Satisfaction with Tourism Logistics Managementin PathumThani Province, Hatsakorn Rodsrisamut , Tassanee Ketkarn , Noppakun Sangkhiew , Choosak Pornsing , Prachuab Klomjit , Thongtaen Thong ingot, Journal of Science and Technology Volume 28, Issue 6, 2020, pp. 1138-1146

Supplier SelectionUsingAnalytic Hierarchy Processfor Sack Manufacturer, Watcharawit Saensupho , Kriengkrai Karnchaisri , Peerapop Jomtong , Noppakun Sangkhiew , Prachuab Klomjit, Journal of Science and Technology Volume 28, Issue 5, 2020, pp. 872-884

Evaluation of Relationship between Brake Performances, Properties of Brake Pad and Hot-Pressing Process Parameters by QFD Technique, Anuthida Makmee , Prachuab Klomjit, Information Engineering, Naresuan University, Volume 15, Issue 1, 2020, pp. 54-65

Efficiency improvement by simulation technique in the parcel service company, Prachuab Klomjit, Chanpen Anurattananon , Alongkorn Chatmuangpak , Amnaht Amaluk, Science & Technology Asia Volume 25, Issue 4, 2020, pp. 20-29

Setup Time Reduction for Hot Pressing Mold Changeover, Phonlapas Lertsakwanich , Prachuab Klomjit, Engineering Journal Rajamangala University of Technology Thanyaburi Volume 18, Issue 2, 2020, pp. 47-58

Improvement Work Method for Defect Reduction in Marking Brake Pad Process, Saran Nakaworavijit , Prachuab Klomjit, Industrial Technology Journal Volume 16, Issue 2, 2020, pp. 104-120

Medicine Ordering Scheduling in Public Hospital: Case Study of Sirindhorn Hospital, Chanpen Anuratananon , Prachuab Klomjit , Phattira Promthong , Rojarek Lekkul, Thai Industrial Engineering Network Journal Volume 6, Issue 2, 2020, pp. 8-19

Efficiency Improvement for Powder Coating Process in Brake Lining Factory, Prasert Bunrod , Prachuab Klomjit, Engineering Journal Rajamangala University of Technology Thanyaburi Volume 18, Issue 1, 2020, pp. 1-12

Efficiency Improvement of Drinking Warehouse Case Study of Sample Drinking Company, Chanpen Anuratananon , Prachuab Klomjit , Thanathorn Chuenyindee , Praewphan Songsukthawan, Thai Industrial Engineering Network Journal Volume 5, Issue 1, 2019, pp. 49-58

Assessment of Mental Workload by Subjective Analysis Technique and Electroencephalography in the Sample Program Testing, Prachuab Klomjit , Phitsini Thanawiwat , Sasi Ninlawat, International Scientific Journal of Engineering and Technology Volume 3, Issue 1, 2019, pp. 1-6

Reducing the Time of Picking up Orders: A Case Study of Roof Tile Materials Warehouse, Chanpen Anuratananon , Prachuab Klomjit, Sittichai Saeloem , Kanyapak Kujiraphan , Thibet Charoennoppakij , Paphasara Yahat, Thai Industrial Engineering Network Journal Volume 5, Issue 1, 2019, pp. 36-45

Reducing the Time of Picking up Orders : A Case Study of Roof Tile Materials Warehouse, Chanpen Anuratananon , Prachuab Klomjit, Sittichai Saeloem , Kanyapak Kujiraphan , Thibet Charoennoppakij , Paphasara Yahat, Thai Industrial Engineering Network Journal Volume 5, Issue 2, 2019, pp. 36-45

An Application of the Hospital Unit Cost by Categorizing Disease Groups in the Sample Hospital, Prachuab Klomjit , Chanpen Anuratananon , Dararat Kaewsonthi , Supitchaya Ngamruen, Thai Industrial Engineering Network Journal Volume 4, Issue 1, 2018, pp. 59-66

Efficiency Improvement of Customer Service of Delivery Service System by Using Simulation: A Case Study of Sample Delivery Service Company, Chanpen Anuratananon , Prachuab Klomjit , Amnaht Amaluk , Natchanan Chusombat, Thai Industrial Engineering Network Journal Volume 4, Issue 2, 2018, pp. 59-69

Activity-Based Costing of Public Hospital Categorizing in Disease Groups Case Study: Bangkhuntian Geriatric Hospital, Chanpen Anuratananon , Prachuab Klomjit , Parinya Phothongsuk , Panuwat Nathavranont, Thai Industrial Engineering Network Journal Volume 3, Issue 1, 2017, pp. 65-73

The Application of Reliability Centered Maintenance in The Sample Factory, Prachuab Klomjit , Prasittichai Phasuktri, Thai Industrial Engineering Network Journal Volume 2, Issue 2, 2016, pp. 35-41

The Development of Biomechanics Manual Lifting Program by 3D Camera, Prachuab Klomjit , Khatawut Bowonsaktawee , Athiwat Areephan, Industrial Technology Journal Ubon Ratchathani Rajabhat University Volume 5, Issue 2, 2015, pp. 131-144

Machine Availability Improvement for Automotive Parts Manufacturing Industry by Reliability Centered Maintenance (RCM), Prachuab Klomjit , Supachai Baoulal, Industrial Technology Journal Ubon Ratchathani Rajabhat University Volume 3, Issue 6, 2013, pp. 94-104

The Study of Suitable Factors for Welding on Canned Food by Design of Experiment Method, P. Klomjit , P. Chantasoponno, Silpakorn University Science and Technology Journal Volume 5, Issue 2, 2011, pp. 26-32

An Evaluation of Manual Lifting Tasks in the Factories by NIOSH Lifting Equation, Prachuab Klomjit , Kitti Intharanon, KMUTT Research and Development Journal Volume 28, Issue 3, 2005, pp. 331-344

Prachuab Klomjit and Paisan Chantasoponno “The Study of Suitable Factor for Welding on Food-Can By Design of Experiment Method” Silpakorn U Science & Tech J Vol.5(2), 2011

Klomjit P., T. Shotikapatipat, and S. Kuanune, “The Development of Warehouse Management System by Radio Frequency Identification (RFID) Technology Case Study: Electric Appliance Factory”, The 2nd International Conference on Logistics and Transport (ICLT) 2010, New Zealand

Tauno Kekale, Kongkiti Phusavat, Bordin Rassameethes, Prachuab Klomjit, “Web-based expert system prototype: applications for workplace improvement”, International Journal of Innovation and Learning (IJIL),Vol.8(1), 2010

Klomjit P., S. Lumputtha and, A Sanbunsiri, “The Ergonomics Assessment by Electromyography (EMG) and RULA in the Sample Paper Factory”, The 2nd International Conference on Science, Technology and Innovation for Sustainable Well-Being, 2010, Vietnam

Efficiency improvement by simulation technique in the parcel service company, Prachuab Klomjit, Chanpen Anurattananon, Alongkorn Chatmuangpak, Amnaht Amaluk, Science & Technology Asia Volume 25, Issue 4, 2020, pp. 20-29

Klomjit P., C. Pongphajantra and S. Kritsanasuwan, “Preventive Maintenance Implementation in the Sample Factory”, The 2nd International Conference on Science, Technology and Innovation for Sustainable Well-Being, 2010, Vietnam

Somboonwiwat T., Atthirawong, W., Kritchanchai D., Leelakawewong W., and Klomjit P., "Prototype of Logistics and Supply Chain Management in Gems and Jewelry Industry", NRCT's Seminar, Apr.24-25, 2008.

Sirihong P.,  Sanguanwongariya P., Supattanapalapol S., Klomjit P., "TPM Implementation in the Paper Core Factory", The 3rd Naresuan Research Conference, 2007.

Keratidumkeangsagul T., Wattanakarnkit N, and Sirakittiwarapong W., Klomjit P., "The Computer Programming Development for the System of Inventory Controlling, Machine Planning, and Efficiency Controlling in SME Business,A Case Study: Paper Core Factory", The 3rd Naresuan Research Conference, 2007.

Klomjit P., “The Development of Expert system Prototype for Manual Lifting Task Evaluation”, The Proceedings of The 22nd Annual Conference of Asia Pacific Occupational Safety and Health Organization, 2006, pp. C9-C16.

Klomjit P., Pusavat K., and Intranont K., “The ML-Expert System for Manual Lifting Task Evaluation”, The 36th International Conference of Computers and Industrial Engineering, 2006.

Klomjit P.,  Seenpiphat W, Chawakitsophon R., and Disathapornchareon S., "The Application of Value Engineering Technique in Rubber Product Development".The 15th IE-Network National Conference, 2006.

Klomjit P.,  Pumiat W., and  Srichairomrat S., "The Application of NIOSH 1991 Lifting Equation in Rubber Conversion Factory", The 2nd Naresuan Research Conference, 2006.

Klomjit P.,  and Intranont K., "A Manual Lifting Task Survey for Expert System Preparation". Proceeding of the IE-Network National Conference, Oct.20-22, 2004.

Klomjit P., and Intranont K., "An Evaluation of Manual Lifting Tasks in the Factories by NIOSH Lifting Equation", KMUTT Research and Development Journal, Vol.28.3, 2005.

Klomjit P., and Intranont K., “A Three-dimensional Human Model of a Computer-aided Design Program for Work Load Evaluation”, Invention Project, Chulalonkgorn University, 1995.

Klomjit P.,"A Three-dimensional Human Model of a Computer-aided Design Program for Work Load Evaluation”, Thesis, Chulalonkgorn University, 1995

"The Development of Manual Lifting Task Equation by Industrial Work Simulation"

"Linear Signal Storage Using ADC8080 IC and Z-80 Microprocessor”

Adisak Wondeeying and Prachuab Klomjit, Waste reduction in plastic injection process PVC pipe Case study Sample Company, The 2nd Conference on Innovation Engineering and Technology for Economy and Society, วันที่ 16 ธันวาคม 2561 ณ มหาวิทยาลัยเกษมบัณฑิต วิทยาเขต ร่มเกล้า, 2018

จันทร์เพ็ญ อนุรัตนานนท์, ประจวบ กล่อมจิตร, อำนาจ อมฤก, การปรับปรุงประสิทธิภาพการให้บริการลูกค้าของระบบงานศูนย์ไปรษณีย์ด่วนพิเศษกรุงเทพโดยใช้การจำลองสถานการณ์, บริษัท ไปรษณีย์ไทย จำกัด, 2018

ประจวบ กล่อมจิตร, การวัดภาระงานด้วยจิตใจเพื่อศึกษาความผิดพลาดในการตรวจสอบ, สถาบันวิจัยและพัฒนา มหาวิทยาลัยศิลปากร, 2018

จันทร์เพ็ญ อนุรัตนานนท์, วิชัย รุ่งเรืองอนันต์, ประจวบ กล่อมจิตร, การวิเคราะห์ต้นทุนต่อหน่วยแยกตามกลุ่มโรคของโรงพยาบาลรัฐ: กรณีศึกษาโรงพยาบาลผู้สูงอายุบางขุนเทียน, สถาบันวิจัยและพัฒนา มหาวิทยาลัยศิลปากร, 2017

พลวัฒน์ ดารงกิจภากร และ ประจวบ กล่อมจิตร, การพัฒนาโปรแกรมเก็บข้อมูลพลังงานไฟฟ้าโดยใช้โทรศัพท์มือถือ:กรณีศึกษาโรงเรียนสาธิตมหาวิทยาลัยศิลปากร, (DEVELOPMENT OF ELECTIC ENERGY DATA LOGGER PROGRAM USING MOBILE PHONE: A CASE STUDY OF THE DEMONSTRATION SCHOOL OF SILPAKORN UNIVERSITY), การประชุมวิชาการสหวิทยาการเอเชียอาคเนย์ 2557, 30 เมษายน 2014, กรุงเทพฯ

Klomjit P., “Maintenance Engineering and Management” Training, Indian Institute of Production Management, (iiPM), India, Scholarship under TCS of COLOMBO Plan, 2008

Somboonwiwat T., Atthirawong, W., Kritchanchai D., Leelakawewong W., and Klomjit P., "Prototype of Logistics and Supply Chain Management in Gems and Jewelry Industry", NRCT's Seminar, Apr.24-25, 2008.

Sirihong P.,  Sanguanwongariya P., Supattanapalapol S., Klomjit P., "TPM Implementation in the Paper Core Factory", The 3rd Naresuan Research Conference, 2007.

Klomjit P., The Development of Manual Lifting Task Equation by Industrial Work Simulation, สำนักงานประกันสังคม, 2002

Klomjit P., and Intranont K., “A Three-dimensional Human Model of a Computer-aided Design Program for Work Load Evaluation”, Invention Project, Chulalonkgorn University, 1995.

Klomjit P., Scholarship Student of DPST. Project (โครงการ พสวท.), 1986-1989    

EIT News (2010): Jan., Feb., Mar. Apr., May.

ErgoEASER Guide (Thai)

Inventory Test

Manual Lifting Evaluating Program (ML_Expert Version 1.0 beta-Thai)

==> Note -Before running the above Program, please Download and Set Up "Java Runtime Environment (JRE)" at www.sun.com

Sample Download: 

- Industrial Plant Design for Safety and Productivity,HP Caculation Manual  

- Introduction to Simulation File No 1 File No 2 ProModel Arena 

- Ergonomics Evaluation and Improvement in the Factory  NIOSHsu SnookSU, RulaSU, Please provide Microsoft.NET Framework 4.0 before Installation.

- Logistics-Supply Chain: Introduction to Design and Management, File No 1 File No 2 SamplePPCprogram PPCprogramManual ProModel Arena eVSM Case Study Promodel Tutorial VDO

- Productivity Improvement: Principle and Practice File No.1

IEnetwork2012 

IEnetwork2013 IEnetwork2014 IEnetwork2015

IEnetwork2013 IEnetwork2014 IEnetwork2015

MTM Program

INNOVATION and INDUSTRY 4.0 Slide

Radio Transceiver Introduction 

Radio Transceiver in several Mode

HTML sample   SamplePPCprogram    PPCprogramManual

INNOVATION and Management 4.0 Slide

Industrial Engineering EIT 2018

mit app inventor. Sample VDO

Engineering Design. 

Online Marketing. Marketing Survey / Research no.1, no.2

Industrial Plant Design PPT. Sample (DWG file: load app "DWG Fastview")

Industrial Safety and Risk Magement Std.PPT

Industrial Inspection Std. PPT

Industrial 4.0, , Thailand4.0, and Sample ioT in class 

     Industrial Safety and Risk Magement Standrad, 

     Ergonomics in Digital Age During COVID-19 Crisis. 

    Industial 4.0 and New Skill for Engineer 

    วิชาชีพวิศวกรรมอุตสาหการ :วิศวกรรมควบคุม (Industrial Engineering Career Path)