NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
Hytork® develops and manufacturers actuators for the automation of industrial valves. The product range includes pneumatic actuators and a wide range of control accessories. Product development is based on modular construction that allows for fast delivery from stock components and easy upgrade to control units as well as quick and efficient modification and repair.
Beijing Huanqiu Guangyang Bearings Co.,Ltd(GPZ Bearing), the professional manufacturer and exporter of high quality ball and roller bearings with more than 20 years of experience to meet the customers require.
We have won good market in Eastern European countries,Southeast Asia,American countries.
Choose GPZ Bearing to won your market based on quality guarantee.
We thank you for your attention and look forward to the cooperation with you!
Sincerely Yours,
Alan Yu
Export Manager
BEIJING HUANQIU GUANGYANG BEARINGS CO.,LTD
Tel:86-15101602678
Fax:86-319-6112678
Cell: 86-15032602678/ 15354192678
Email: alan@gpzbearing.com
Yahoo: gpzbearing@yahoo.com
MSN: gpzbearing@live.com
Gmail: gpzbearing@gmail.com
Skype: gpzbearing
Web: www.gpzbearing.com / www.gpzbearing.net
Mirus lineator hp_harmonic_mitigation_filters_datasheetAngus Sankaran
Mirus Lineator HP Harmonic Mitigation Filters-
It is used where the highest power quality demands must be met.
It is more reliable and easier to maintain than any of the complex AFE drives.
Operating costs are also significantly lowered due to the higher efficiency gains.
Available for sales, rentals, hire and lease @ http://www.supremetechnology.com.au/product/mirus-lineator-hp-harmonic-mitigation-filters.aspx?Id=1863&ProductType=Regular
Hytork® develops and manufacturers actuators for the automation of industrial valves. The product range includes pneumatic actuators and a wide range of control accessories. Product development is based on modular construction that allows for fast delivery from stock components and easy upgrade to control units as well as quick and efficient modification and repair.
Beijing Huanqiu Guangyang Bearings Co.,Ltd(GPZ Bearing), the professional manufacturer and exporter of high quality ball and roller bearings with more than 20 years of experience to meet the customers require.
We have won good market in Eastern European countries,Southeast Asia,American countries.
Choose GPZ Bearing to won your market based on quality guarantee.
We thank you for your attention and look forward to the cooperation with you!
Sincerely Yours,
Alan Yu
Export Manager
BEIJING HUANQIU GUANGYANG BEARINGS CO.,LTD
Tel:86-15101602678
Fax:86-319-6112678
Cell: 86-15032602678/ 15354192678
Email: alan@gpzbearing.com
Yahoo: gpzbearing@yahoo.com
MSN: gpzbearing@live.com
Gmail: gpzbearing@gmail.com
Skype: gpzbearing
Web: www.gpzbearing.com / www.gpzbearing.net
Mirus lineator hp_harmonic_mitigation_filters_datasheetAngus Sankaran
Mirus Lineator HP Harmonic Mitigation Filters-
It is used where the highest power quality demands must be met.
It is more reliable and easier to maintain than any of the complex AFE drives.
Operating costs are also significantly lowered due to the higher efficiency gains.
Available for sales, rentals, hire and lease @ http://www.supremetechnology.com.au/product/mirus-lineator-hp-harmonic-mitigation-filters.aspx?Id=1863&ProductType=Regular
OzLinc Industries supply a variety of buttweld, hose, clamps, fittings, valves and pipe to the Australian mining, fire fighting, infrastructure and marine industries.
(http://www.pravinautoindustrialagency.com/) We offer High Tensile Fastener, Hub Bolt, Hex Bolt, Structural Bolt, Stud Bolt, Metal Washer, Hex Nut, Knurling Bolt, Structural Nuts, Threaded Bolt and many more to our clients.
Aluminum Housing,aluminum Used Marine Gearbox,Angle Bevel GearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
OzLinc Industries supply a variety of buttweld, hose, clamps, fittings, valves and pipe to the Australian mining, fire fighting, infrastructure and marine industries.
(http://www.pravinautoindustrialagency.com/) We offer High Tensile Fastener, Hub Bolt, Hex Bolt, Structural Bolt, Stud Bolt, Metal Washer, Hex Nut, Knurling Bolt, Structural Nuts, Threaded Bolt and many more to our clients.
Aluminum Housing,aluminum Used Marine Gearbox,Angle Bevel GearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
90 degree right angle bevel gearbox,90 degree shaft gearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
12V 150-180Wdc gear motor,12v 24v brushless motor,12v dc geared motorLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
1 8 ratio gearbox,1 to 1 ration gearbox,1:10 ratio planetary gearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
06 marine gearbox,1 1 right angle gearbox,1 3 ratio gearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
,agricultral bevel electric motor gearbox,agricultural bevel gearboxLance Shi NER GROUP
NER GROUP LIMITED is a professional manufacturer and exporter of gear reducers, geared motors and electric motors for several years from China.
We believe that we can cooperate with you on this business and please contact us if you are interested.
You are welcomed to visit our catalogue website for more information:
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-1856
www.sogears.com
Mobile:+86-18563806647
www.guomaodrive.com
https://twitter.com/gearboxmotor
Viber/Line/Whatsapp/Wechat: 008618563806647
E-mail: info@sogears.com; Skype ID: qingdao411
No.5 Wanshoushan Road, Yantai, Shandong,China
Geared motors manufacturer, Industrial gearboxes supplier, visit
www.bonwaygroup.com Email: info@sogears.com WhatsApp: +86-18563806647
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Gear column gear box, column gearboxes, column shaft gearboxLance Shi NER GROUP
The steering gearbox is a unit that can be found on most of the larger duty trucks and older cars. Gearboxes are used in cases where the weight of the vehicle would be too much ... The input shaft attaches to the steering column and transfers the driver's ... A torsion bar connects the pinion or worm gear to the steering wheel Onassis Auto Limited offering Gear Shift Shaft in Imt Manesar, Gurgaon, Haryana. ... transmission and are presently being exported for use in Gear Box Assembly of 6 ... The shafts also allow gears on one shaft to freely rotate or locked to shaft ... Column parts are currently manufactured by Onassis for Renault which are ...
BYJC new product RV Reducer eccentric shaft grinding machine (tangential point tracing) win the gold award of 17TH CHINA INTERNATIONAL INDUSTRY the eccentric bearings design are based on the Chinese standard. ..... one input shaft for the cycloid gear which is different from the RV reducer
Dcy cylindrical gears reducer mining engineering machineryLance Shi NER GROUP
GUOMAO has produced the complete of reducers with about ten series of hundred ... B,X serial cycloidal reducer,Z serial cylindrical gear reducer,ZLYJ serial gear ... extruding machine,DCY serial bevel and cylindrical reducer,GR serial helical ... GUOMAO's top-level design team, having over one hundred of engineers, ..Cone cylindrical gear reducer is the outer meshing gears ... DCY cylindrical gear. ... to as speed reducer), which use in the rotating equipment for input and ... mine, chemical engineering, coal, building materials, light industry, .
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Cyclo agitator concentric drives cycloidal reduction gear boxLance Shi NER GROUP
Planetary Gearbox vs. Cycloidal Technology, Cycloidal Speed Reducers Nabtesco's Gearbox Reducers consist of a patented two-stage cycloidal design ... The RV gear utilizes rolling contact elements to reduce wear, extend life and .. Cycloidal gearbox. 1.Large ratio of gear reductions:the ratio is 1/9-1/87 at single stage reduce,1/99-1/7569 at double-stage reduce,1/2057-1/658503 at .. Why use a Cycloidal Gearbox or Planetary Gearbox? Inertia matching. Speed reduction. Torque magnification. Bearing support for application loads ...
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Planetary Gearbox vs. Cycloidal Technology, Cycloidal Speed Reducers Nabtesco's Gearbox Reducers consist of a patented two-stage cycloidal design ... The RV gear utilizes rolling contact elements to reduce wear, extend life and .. Cycloidal gearbox. 1.Large ratio of gear reductions:the ratio is 1/9-1/87 at single stage reduce,1/99-1/7569 at double-stage reduce,1/2057-1/658503 at ..
Crane duty gear box parallel round shaft mounted speed reducerLance Shi NER GROUP
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Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
insect taxonomy importance systematics and classification
ac motor speed reducer,AC vertical electro motor with 30:1 gearbox,ac motor
1.
2. 1
Z Series cylindrical gear reducer
Cyclinder Gearbox Reducer
Summary: This product is cylindrical gear hard surface speed reducer as Chinese standard JB/T8853‐2001.It is widely
applied to the fields of metallurgy, mines, hoisting, transportation, cement, architecture, chemical, textile, printing and
dyeing, pharmaceutical, etc.
The suitable scope of speed reducer is as follows:
1.The rotation of high speed shaft should not be more than 1500rpm;
2.The circumferential velocity of gear transmission should not be more than 20,/sec;
3.The temperature of work environment should be ‐40‐45℃. If it below 0℃, before start, the lubricating oil should be
pre‐heated to above 0℃. This speed reducer can be run at clockwise and counterclockwise direction。
Characteristics
1.The gear is made of high strength low carbon alloy steel through carburization and quenching. The hardness of tooth
surface may reach to HRC58‐62. All gear adapts NC tooth grinding process, high in accuracy and good in contact
performance;
2.Highly transmission efficiency: single stage, more than 96.5%; double‐stage, more than 93%; three‐stage, more 90%;
3.Smooth and stable in run, low noise;
4.Compact, light, long life, high bearing capacity;.Easy to disassemble, inspect and assemble.
Type, specification of speed reducer and its expressed method
1. The type including: ZDY single‐stage cylindrical gear speed reducer, ZLY double‐stage cylindrical gear speed reducer, ZSY
three‐stage cylindrical gear speed reducer
2.Specification has: Single stage:80、100、125、160、200、250、280、315、355、400、450、500、560;
Two‐stage:112、125、140、160、180、200、224、250、280、315、355、400、450、 500、560、630、710;
Three‐stage:160、180、200、224、250、280、315、355、400、450、500、560、630、 710;
Four‐stage:180、200、225、250、280、320、360、450、500、560、630、710、800
3. Representation examples:
ZLY 280 — 11.2 — I JB/T8853-2001
Standard
Assemble typeI
For the nominal transmission 11.2
The low speed level centre spur is280mm
Two-stage cylindrical gear reducer drive
4.Only allow to single direction running for reducer with hold back.Regulation is face to input shaft, input shaft ‘s running as
“S” clockwise ,running as “N” counter‐clockwise
11. 8
Lubrication&Cooling means
1. As usual it apply to oil bath and natural cooling.If you request cooling coil to cool or forced pump
lubrication ,please contact us.
When high speed grade’s circulate speed V<2.5m/s,OR environmental temperature during 35~50,choose
mid extreme pressure gear oil N320/VG320
When high speed grade’s circulate speed V<2.5m/s,OR apply to circular lubrication,choose mid extreme
pressure gear oil N220/VG220
2. For bearing, recommend splash oil lubrication and brand is same as for gear.
3. When last stage center distance (spec.a)》400,recommend forced lubrication,plz check appendix D.
4. ZDY,ZLY to be adviced to match the oil cooler,when ratio>40 for ZSY ,no cooler
Installation,usage and maintance
1. Plz insure the input shaft axis and output shaft axis of gearbox lies in the same one shaft with connected
part’s shaft axis.The error cannot above allowable value for coupling to be used.If you use triangle belt
as input drive,belt should reduce the unbalance quality through cutting manufacture.
2. Done with the installtion ,plz pure the lubrcication into the oil bath of housing ,oil surface should reach
the height of oil dipstick (between the upper limit line and floor level line).
3. Before it is driven, turn by hand to confirm if it is flexible without lock , then drive no load,term is 2
hours. If you find out noice, oil leakage, libriation ,plz eliminate it
4. The first use for gearbox, after driving 20 days, plz change the new oil.Should exam the quality of oil, plz
change it in time.And exam the height of oil surface, if it is lower than mid line of dispatch, need to be
supplied. As usual ,change the oil of gearbox which work for 8 hours every day every three month. Its
working time within 8 hours, oil can be changed for every 6 months
5. If you find out the oil ‘s temperature rise above 70 ℃ or oil’s temperature is above 100 ℃, quality of oil
is low down and has deviant noise . Plz stop and exam.
Selection for gearbox
P1 means nominal power,if actual input speed’s difference for reducer beyond 4% with someone
(1500,1000,750),please as actual input speed to convert :
Example
one set of belt form transmission machine’s speed reducer to be used to transport big goods, driven by
motor, input speed n1=1200r/min, ration i=4.5, load power P2= 380kw, every day it work for 24hours, Plz
choose a model.
Step 1 Check up by appendix A and get to: belt form transmission speed reducer’s load is medium
concussion, if reducer is broken it will lead to the whole production line is stop production, and check up
table 1,2 to get up: KA=1.5,SA=1.5,
P2m=P2xKAx SA=380x1.5x1.5=855kw
Request P2m≤P1
Step 2 n1=1200r/min near to 1000r/min, i=4.5, check up and get ZDY355,
i=4.5,n1=1000r/min,P1=953kw.When n1=1200r/min,to convert nominal power :
P1=953x1200/1000=1143.6kw ,P2m=855kw≤P1=1143.6kw,so ZDY355 is Ok.
Table 1 Working situation factor KA
Prime motor Working time
everyday(hour)
KA
Light
impulsive
load(U)
Mid
impulsive
load(M)
Heavy
impulsive
load(H)
Motor/steam
turbine/hydraulic
machinery
~3 0.8 1 1.5
>3~10 1 1.25 1.75
>10 1.25 1.5 2
12. 9
4‐6 set cyclinder
engine
~3 1 1.25 1.75
>3~10 1.25 1.5 2.25
>10 1.5 1.75 2.5
1‐3 set cyclinder
engine
~3 1.25 1.5 2
>3~10 1.5 1.75 2.25
>~10 1.75 2 2.5
Appendix A (Reducer gearbox Loading classification)
Name of machine Loading classification Name of machine Loading classification
Construction machine Textile lathe
Concrete batch plant M Feeding machine M
Winch machine M Loom M
Road Construction
machine
M Printing&drying
lathe
M
Chemical Prepared bucket M
Mixer(hydraulic) U Rubber machine
Mixer(Semi‐hydraulic) M Calendar M
Centrifugal body(heavy) M Extruder H
Centrifugal body(light) U Banduary M
Cooling roller M Kneader H
Dry rooler M Roller mill H
Mixer M
(More reference data such as plastic machine,engineer,crane and so on, please contact us, we will supply
with it.)
Table 2 Safety factor SA
Result for
reducer’s lose
effectiveness
General loss Serious loss Serious badly loss
Single machine
stop production
Whole production
line stop
production
personal injury,power
cut,crane is bad and
so on
SA 1.1~1.3 1.3~1.5 1.5~1.7