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這幾天看到一家冷儲存媒體的廠商大做廣告，其中提到「磁帶保存不易」，指磁帶的壽命「通常」只有 5 到 7 年⋯⋯
這種說法也不能說錯，如果在一個不受控的艱難保存環境之下，不只磁帶保存不了 5 到 7 年，可能連磁碟的資料可靠度都會受到影響！
但事實上，「現代的磁帶技術，擁有比傳統磁碟機更好的可靠度。如果比較 BER（Bit Error Rate，位元錯誤比率），光碟是10的-12次方，磁碟是10的-16次方，快閃 SSD 是10的-17次方，而 LTO 是 10的-20次方。」純就資料可靠度來說，企業用磁帶是最好的。重點在於「這取決磁帶本身的品質與保存磁帶的環境因素，磁帶保存環境的優良與否對磁帶的正常運作有著決定性的影響。」
也就是說，如果考量到資料長期保存，那麼儲存媒體保存的環境是務必要規劃、而且絕對重要的因素！
GRANDIOSO K1X
"Two revolutions integrated. Two revolutions connecting people to music... The VRDS-ATLAS and Master Sound Discrete DAC - now come to fruition in an integrated player that carries the name… Grandioso ( Grandioso (music): Grand or noble)."
An unprecedented transport mechanism that invites you to the furthest reaches of sound.
VRDS (Vibration-Free Rigid Disc-Clamping System) is Esoteric's unique CD/Super Audio CD transport technology, which has been specially designed to clamp the disc to a same-diameter turntable in order to eliminate the disc's rotational vibration, as well as any extraneous vibration emanating from the mechanism itself. It also corrects any warpage of the disc, dramatically improving the accuracy of both the optical pickup and the disc pit layer's corresponding optical axis, while also minimizing servo current. This all adds up to dramatically reduced disc read error for exceptional audio quality.
The new VRDS-ATLAS platform boasts unprecedented mechanical perfection and superlative audio quality, with heavyweight construction that is fully 127% heavier than previous iterations (6.6kg for the mechanism alone, and 13.5kg including its base). This highest rigidity and weight in the history of VRDS mechanisms has the effect of greatly reducing any and all vibration that could adversely affect audio quality. The transport's larger new side panels and bridge are all formed of SS400 steel, and its turntable is made from duralumin, which is renowned for its excellent sound quality. Also, its spindle features a newly designed thrust bearing system, for a friction-free one-point spindle support system that ensures smooth, noiseless turntable rotation.
Esoteric's impressive VRDS-ATLAS is the quietest and most elegant transport in the history of VRDS. The key to achieving this was a resolute focus on mechanical grounding technology that more effectively reduces vibration.
Adopting a wide & low-profile design for the entire mechanism helped achieve a lower center-of-gravity, and relocating the turntable motor to below the turntable from its previous position above the bridge dramatically shortened the route for grounding vibration and reducing mechanical noise. Tray hollowing has also been minimized for increased rigidity, and special stoppers made from vibration-absorbing elastomer cancel out resonance when the tray is stored.
The Grandioso K1's mighty power supply was the key to its powerful and profound three-dimensional sound. With the introduction of its new X version, this power supply has been dramatically enhanced to add further depth to its exceptional audio tone. Its built-in D/A converter features independent power transformers for left and right channels, and the K1X includes a total of four independent toroidal power supply transformers. Furthermore, technologies cultivated in the development of the Grandioso P1X/D1X have also been adopted, including a new low-feedback DC power supply regulator featuring a discrete circuit configuration which contributes to its powerful open sound. The K1X also contains a total of 76 EDLC* supercapacitors (with a total capacity of 2,050,000µF or 2.05F). This greatly increased power supply capacity provides a tremendously improved sound quality for exceptional resolution in the lower frequency ranges.
*EDLC (Electric Double-Layer Capacitor):A special type of capacitor boasting an astoundingly high capacity compared to the electrolytic capacitors used in conventional audio equipment.
The VRDS-ATLAS transport mechanism is centrally located within the chassis, where it is fixed to a 5mm-thick steel bottom plate and supported by four proprietary pinpoint feet (patent no. 4075477 and 3778108). This effectively isolates the rotational mechanism from vibration. The internal structure of the chassis features a double deck design, with the audio boards on the upper level and power supply circuits and transformers on the lower level to minimize magnetic flux leakage and vibration, while also shortening the power supply wiring.
Semi-Floating Top Panel
The enclosure's top panel utilizes a screwless semi-floating structure that further contributes to an open and expansive sound.
Master Sound Discrete DAC
Bringing out all the dynamics and energy of the original master recordings.
Master Sound Discrete DAC Bringing out all the dynamics and energy of music.
Unattainable by integrated chips, our goal was to assemble carefully selected and tested discrete components into a complete circuit that could perfectly reproduce all the dynamics and energy of music. Our top engineering teams put their pride on the line to design and produce a quality of sound that can only be found in the Master Sound Discrete DAC discrete D/A converter.
The K1X's Master Sound Discrete DAC is the most revolutionary two-channel stereo DAC circuit in Esoteric's history, and is based on the original circuit developed for the Grandioso D1X monaural D/A converter.
As an extension of the D1X's design philosophy, a luxurious volume of materials have been invested in the construction of K1X's Master Sound Discrete DAC. For example, it features 32 separate elements for each channel. Key components such as a clock driver, logic circuit, and capacitors and resistors, are kept independent for each of these 32 elements to ensure the purest output without no loss of musical energy.
The K1X's independently developed Δ∑ modulator supports 64-bit/512Fs and the latest high-end digital formats, including of 22.5MHz DSD and 768kHz PCM signals. The FPGA's* dedicated digital processing algorithm was developed exclusively for the Master Sound Discrete DAC, and has been fully optimized for outstanding playback of both DSD and PCM digital audio data.
Advanced Quality Control
With a discrete DAC, where component tolerances are directly linked to arithmetic precision, highly advanced quality control is also required for the manufacture of electronic circuit boards. Esoteric's own in-house factory boasts some of the world's leading board mounting technologies, such as soldering performed in an oxygen-free furnace, which is located in a clean room featuring the same level of cleanliness found in a hospital operating room. Technologies cultivated in the production of electronic circuit boards for audio, medical, aerospace, and defense industries support the high production quality of the Master Sound Discrete DAC.
The ESOTERIC-HCLD output buffer amplifier boasts an amazingly high-speed slew rate (response speed) of 2,000V/µs. Current transmission and speed—the most important factors for an analog output circuit—have been pushed to the limits to reproduce the reality of music with a dynamic range that is truly breathtaking.
In addition to its XLR and RCA amplifier line connections, the K1X also features the ES-LINK Analog method of current transmission. Taking full advantage of the HCLD buffer circuit's powerful current supply makes the K1X less susceptible to the detrimental effects of impedance on the signal route. It also enables a more powerful signal transmission, fully driving connected compatible devices.
A high-accuracy clock circuit is the key to achieving superlative sound quality in digital audio playback. A top-quality clock circuit is truly the heart of any high-end digital player. The K1X now features the superb Grandioso Custom VCXO II clock originally developed for the Grandioso P1X/D1X. This clock was developed with carefully considered modifications made to the earlier model's internal circuitry and components to more vividly emphasize the K1X's ultimate audio quality while further boasting remarkably low phase noise and excellent center precision (±0.5ppm).
The K1X can also be connected to the Grandioso G1 Master Clock Generator for playback, with internal circuits synchronized to a 10MHz clock that features the same high precision as an atomic clock, enabling further pursuit of high sound quality.
D/A Converter Functions for External Input, D/D Conversion, MQA Support & USB Input
In addition to its coaxial and optical inputs, the K1X also features a USB type-B port that is compatible with both 22.5MHz DSD and 768kHz/32-bit PCM asynchronous signal transmission, thus enabling it to also be used as a stand-alone D/A converter. Functions are provided for upsampling a PCM digital signal to 2/4/8/16× (max. 768kHz) and converting PCM to DSD. The K1X is also compatible with MQA-CD decode playback and full MQA decoding for playback of various digital inputs including USB.*
*MQA certification is pending as of August, 2019, and support is scheduled to be added via a software update as soon as certification is complete.
(Source: Esoteric Japan)
从老公的角度看试管婴儿疗程
当一对夫妻要做 #IVF试管疗程时，做丈夫的应该用什么态度来面对？常常有网友告诉我说，我的老公精子不好，可是他还是不能戒烟戒酒，好不配合。要知道，不孕症不只是女人的责任，男人也是有责任。这篇文章，是以男人的角度出发，里面分享身为丈夫应该如何帮助太太一起度过疗程，文章是英文内容，是奥莉爸爸写的，奥莉爸不会中文。分享给大家😊
IVF Journey, A Husband’s Perspective
Hi all, before reading further I would like to say this is NOT an instruction or tips for IVF and hopefully readers will understand my poorly written English. This is my journey as a father of the IVF baby girl. Why am I sharing all this? It is because my wife had a Facebook page of her IVF journey at https://facebook.com/ivfjourney2015/ and she told me that majorities (not all but most) feedback indicate husband not supportive enough to commit into a journey of IVF. I’m not a true supportive husband either, least I made up my mind to make it happen.
Let’s start with “Why IVF?”
We went for a fertilization test and results with;
Husband: Teratospermia (Human language, sperm is weak for fertilization process)
Wife: Unexplained infertility (I think this is easy to understand, there is for the confirming reason for this result and we don’t go for further test after it because it will consumes too much time and money)
We married and planned to have children late 2011, both our ages were 37 in 2015 because of late marriage. My wife introduced IVF because she does not want to give up and feels regretful in future and so do I. Maybe because I did too many regretful things in the past, now I do not want this happened to my wife. At least I do it better then ignoring it.
Preparation for IVF
Financially, I know it will involve amount of 20k – 30k “Ringgit Malaysia” in the whole process depending on the situation and this is only one chance for me. I don’t have the money for a second attempt because I need to allocate funds for delivery if success.
Mentally, I do some studies/research on IVF. The whole journey took 50 days and in one of the process my wife needs to do a self-injection daily. I quickly asked my wife “Daily injection?! Do I need to fetch you to clinic daily to do this?” She answered “No, we need to do this ourselves”. A final question from me going to be “How?!” After we sat down and discuss, we comes into conclusion and I will do the injection for her. This was the most painful and nervous moment I ever experience by poking a needle to my wife’s belly EVERYDAY!
Lifestyle, 6 months earlier. My wife told me the NO’s, NO alcohol NO smoking NO midnight wandering NO stress. I said, I will fly up to the skies like butterfly if I able to do all the NO’s. It’s like a mission impossible. How can a man like me not go out to social with friends without alcohol and smoke? The joke was sleeping early! You want me to social with my friends in breakfast or lunch time? At this time, she softly said “I really wants to have a cute baby in future, it looks more like a family. Furthermore, I don’t want to have regretful moments in future”. All these words came out of my love (wife), her words melted in my heart deeply. I told her “Ok, we will go for it BUT you will need to promise me ONE IMPORTANT thing. No matter the process success or not we only have one attempt we need to accept the truth and live happily without regret in future.” she agreed.
Commitment, this is not some empty promise. I made a huge commitment to change my lifestyle into zero alcohol, tobacco and lesser stress. If comparing the pain and suffers my wife will take in this journey e.g., injection, medication effects, hormone changes and all the effects from pregnancies to delivery, mine looks more alike small potatoes (looks much more simple). Trust me guys, don't compare it, if you do and more likely you're going loose badly. For the sake of making a better future, I had fulfilled this commitment.
IVF Journey Phase 1 “Unskilled Husband Injection”
Day 1, doctor consults us for Buserelin injection. I need to inject this medication into my wife's belly each day sharp at 8AM. The nurse had guided me side by side to do the first injection.
Day 2, I started my first injection to my wife's belly without anyone guiding beside. Feels a bit nervous because this time I'm doing it all by myself. I try to hum some music to distract my wife's from looking at the needle while injecting but still she is looking at it.
Day 3 - Day 15, sometime the injection hurting and causes bleeding/bruise to her. I need to find a new spot to inject every time and sees her bruise makes my pain in the heart too. My injection skills improved dramatically. She even told me that she doesn't feel pain like the beginning stages.
Day 16, follow up 2nd checkup. Doctor said, everything goes smoothly and added another medication to inject called Gonal-F to take home and start injecting on day 23. This message never surprises me because I've been told earlier, but just that the price to pay for this medication is quite costly.
Day 17 - Day 22, nothing much on these days and we just stick on the plan as usual.
IVF Journey Phase 2 “Stressful Night”
Day 23, Gonal F injections start today. This needle doesn't look same as those earlier, it comes with medication in it and look like a pen.
Day 24 - Day 26, side effects of the Gonal F medications started. My wife is feeling irritation at the injection site, fullness, bloating and tenderness in the lower abdomen due to the increasing size of the ovaries. Her mood changes dramatically as I can tell, but she endures it and tell me she can handle it.
Day 27, follow up 3rd checkup. Doctor said wife has eggs total of 12 and is ready for Transvaginal oocyte retrieval "Human language, Egg retrieval" at day 31.
Day 28 - Day 29, final injection of Gonal F. At day 29 night, I inject Ovidrel to wife belly to that causes the growth and release of a mature egg (ovulation) for day 31.
Day 30, resting whole day. Finally, we had a day without injection and worrying about holding any needles. Today we wondering about the egg growth, not knowing will the eggs grow more or still the same amount of 12.
Day 31, egg retrieval. 8 egg success retrieves and I give out my sperm for oocytes selection on the same day. Wife given cyclogest for oval protection after the egg retrieval.
IVF Journey Phase 3 “Hopeful Embryo Culture & Embryo Transfer”
Day 32 - Day 35, rest at home. We had pillow talk every night concerning about the growth of an embryo. We also look at sample growth stages of an embryo from the web to see what the current growth stage is.
Day 36, another hopeful and nervous morning. Doctor tells us the result of embryo culture as below;
Total Embryo Retrieve: 8
Embryo Qualified for ICSI: 6
Embryo Success until Cleavage Stage (Day 2 – Day 4): 3
Embryo Success until Blastocyst Stage (Day 5): 2
Embryo Qualified / Recommended for Transfer: 1
Both our eyes looked at each other, knowing only 1 Blastocyst Embryo available to transfer and doctor tell the same after it. I really do not know how to express both our feelings into words here, as we expected to have at least 2 Blastocyst out of 8 embryos and only left 1. We both agreed to proceed this only 1 Blastocyst transfer as this is the only choice we had. It's more likely walking on a 100ft tall string with no supports mission, a single error will fail the mission.
After the transfer process, wife given a room to rest for few hours. A nurse came and give us adjunctive medications, injections and advice while resting at room.
IVF Journey Phase 4 “The Final Moment of IVF”
Day 37 - Day 49, after the transfer. This period is known as 2WW (2 Weeks Wait) with adjunctive medications, injections and be very careful. I just let her sleep/rest more on the bed, I served her every meal in the room. We're also nervous and curious about pregnancy results on day 44, we tested with cheap pregnancy tester and get got a double line on it and we do have a little hope and joy with this result. On day 47, again we test, but this time with expensive pregnancy tester and the results double line again! We're so hopeful and happy at this moment. We really hope this result is true until the next checkup.
Day 50, final checkup. My wife goes for the hCG test by giving a sample of blood, we waited 2 hours for the results. While waiting, nurse guide us to a room to rest. Wife slept and I sat beside concerned on the hCG test results. 2 hours later, the doctor invited us to look for him. Before doctor speaks, while we are sitting down, my wife's eyes were starring in the hCG results number and she spotted the hCG number is 452. She smiles happily while doctor tells her "You are pregnant and congratulations! Come back after 2 weeks to scan for baby heartbeats. And please go out to the counter and ring the bell!”
Just Sharing My Thoughts
By all means, I’m not bragging about my success. I would like to say if anyone is planning on IVF, teamwork is very important and husband play a very important role to increase the success rate. Sometimes, I do feel like a spectator than a participant myself because I never experience any of the medical exams but this is not true. Every injection I put on her belly, I feel the pain in my heart as bad as she has on the belly. Ok, nothing much to share in this IVF journey and next time I might be sharing another journey as a Father! Here is my little baby girl Facebook page奥莉 Olivia Baby - 梁童心心 https://fb.me/oliviababylove if you wish to see her growth updates.
End.
#ivf #ivfmalaysia #ivfjourney #baby #alphafertility
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